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| author | Dave Airlie <airlied@redhat.com> | 2021-10-11 18:09:39 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2021-10-11 18:09:39 +1000 |
| commit | 1176d15f0f6e556d54ced510ac4a91694960332b (patch) | |
| tree | eba3bba08865e9711647fff161afc75aaa667c67 | |
| parent | c7c774fe09389fc806bbe4b487c18e45f576c1ae (diff) | |
| parent | 1a839e016e4964b5c8384e5d82e5e5ac02a23f52 (diff) | |
| download | linux-1176d15f0f6e556d54ced510ac4a91694960332b.tar.bz2 | |
Merge tag 'drm-intel-gt-next-2021-10-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Add uAPI for using PXP protected objects
Mesa changes: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8064
- Add PCI IDs and LMEM discovery/placement uAPI for DG1
Mesa changes: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11584
- Disable engine bonding on Gen12+ except TGL, RKL and ADL-S
Cross-subsystem Changes:
- Merges 'tip/locking/wwmutex' branch (core kernel tip)
- "mei: pxp: export pavp client to me client bus"
Core Changes:
- Update ttm_move_memcpy for async use (Thomas)
Driver Changes:
- Enable GuC submission by default on DG1 (Matt B)
- Add PXP (Protected Xe Path) support for Gen12 integrated (Daniele,
Sean, Anshuman)
See "drm/i915/pxp: add PXP documentation" for details!
- Remove force_probe protection for ADL-S (Raviteja)
- Add base support for XeHP/XeHP SDV (Matt R, Stuart, Lucas)
- Handle DRI_PRIME=1 on Intel igfx + Intel dgfx hybrid graphics setup (Tvrtko)
- Use Transparent Hugepages when IOMMU is enabled (Tvrtko, Chris)
- Implement LMEM backup and restore for suspend / resume (Thomas)
- Report INSTDONE_GEOM values in error state for DG2 (Matt R)
- Add DG2-specific shadow register table (Matt R)
- Update Gen11/Gen12/XeHP shadow register tables (Matt R)
- Maintain backward-compatible nested batch behavior on TGL+ (Matt R)
- Add new LRI reg offsets for DG2 (Akeem)
- Initialize unused MOCS entries to device specific values (Ayaz)
- Track and use the correct UC MOCS index on Gen12 (Ayaz)
- Add separate MOCS table for Gen12 devices other than TGL/RKL (Ayaz)
- Simplify the locking and eliminate some RCU usage (Daniel)
- Add some flushing for the 64K GTT path (Matt A)
- Mark GPU wedging on driver unregister unrecoverable (Janusz)
- Major rework in the GuC codebase, simplify locking and add docs (Matt B)
- Add DG1 GuC/HuC firmwares (Daniele, Matt B)
- Remember to call i915_sw_fence_fini on guc_state.blocked (Matt A)
- Use "gt" forcewake domain name for error messages instead of "blitter" (Matt R)
- Drop now duplicate LMEM uAPI RFC kerneldoc section (Daniel)
- Fix early tracepoints for requests (Matt A)
- Use locked access to ctx->engines in set_priority (Daniel)
- Convert gen6/gen7/gen8 read operations to fwtable (Matt R)
- Drop gen11/gen12 specific mmio write handlers (Matt R)
- Drop gen11 specific mmio read handlers (Matt R)
- Use designated initializers for init/exit table (Kees)
- Fix syncmap memory leak (Matt B)
- Add pretty printing for buddy allocator state debug (Matt A)
- Fix potential error pointer dereference in pinned_context() (Dan)
- Remove IS_ACTIVE macro (Lucas)
- Static code checker fixes (Nathan)
- Clean up disabled warnings (Nathan)
- Increase timeout in i915_gem_contexts selftests 5x for GuC submission (Matt B)
- Ensure wa_init_finish() is called for ctx workaround list (Matt R)
- Initialize L3CC table in mocs init (Sreedhar, Ayaz, Ram)
- Get PM ref before accessing HW register (Vinay)
- Move __i915_gem_free_object to ttm_bo_destroy (Maarten)
- Deduplicate frequency dump on debugfs (Lucas)
- Make wa list per-gt (Venkata)
- Do not define dummy vma in stack (Venkata)
- Take pinning into account in __i915_gem_object_is_lmem (Matt B, Thomas)
- Do not report currently active engine when describing objects (Tvrtko)
- Fix pdfdocs build error by removing nested grid from GuC docs (Akira)
- Remove false warning from the rps worker (Tejas)
- Flush buffer pools on driver remove (Janusz)
- Fix runtime pm handling in i915_gem_shrink (Maarten)
- Rework TTM object initialization slightly (Thomas)
- Use fixed offset for PTEs location (Michal Wa)
- Verify result from CTB (de)register action and improve error messages (Michal Wa)
- Fix bug in user proto-context creation that leaked contexts (Matt B)
- Re-use Gen11 forcewake read functions on Gen12 (Matt R)
- Make shadow tables range-based (Matt R)
- Ditch the i915_gem_ww_ctx loop member (Thomas, Maarten)
- Use NULL instead of 0 where appropriate (Ville)
- Rename pci/debugfs functions to respect file prefix (Jani, Lucas)
- Drop guc_communication_enabled (Daniele)
- Selftest fixes (Thomas, Daniel, Matt A, Maarten)
- Clean up inconsistent indenting (Colin)
- Use direction definition DMA_BIDIRECTIONAL instead of
PCI_DMA_BIDIRECTIONAL (Cai)
- Add "intel_" as prefix in set_mocs_index() (Ayaz)
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YWAO80MB2eyToYoy@jlahtine-mobl.ger.corp.intel.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
167 files changed, 5483 insertions, 1944 deletions
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 101dde3eb1ea..b7d801993bfa 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -471,6 +471,14 @@ Object Tiling IOCTLs .. kernel-doc:: drivers/gpu/drm/i915/gem/i915_gem_tiling.c :doc: buffer object tiling +Protected Objects +----------------- + +.. kernel-doc:: drivers/gpu/drm/i915/pxp/intel_pxp.c + :doc: PXP + +.. kernel-doc:: drivers/gpu/drm/i915/pxp/intel_pxp_types.h + Microcontrollers ================ @@ -495,6 +503,8 @@ GuC .. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.c :doc: GuC +.. kernel-doc:: drivers/gpu/drm/i915/gt/uc/intel_guc.h + GuC Firmware Layout ~~~~~~~~~~~~~~~~~~~ diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c index fcfe1a03c4a1..bf8a6e823a15 100644 --- a/drivers/gpu/drm/drm_modeset_lock.c +++ b/drivers/gpu/drm/drm_modeset_lock.c @@ -248,7 +248,7 @@ static inline int modeset_lock(struct drm_modeset_lock *lock, if (ctx->trylock_only) { lockdep_assert_held(&ctx->ww_ctx); - if (!ww_mutex_trylock(&lock->mutex)) + if (!ww_mutex_trylock(&lock->mutex, NULL)) return -EBUSY; else return 0; diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig index f960f5d7664e..8859444943a0 100644 --- a/drivers/gpu/drm/i915/Kconfig +++ b/drivers/gpu/drm/i915/Kconfig @@ -131,6 +131,17 @@ config DRM_I915_GVT_KVMGT Choose this option if you want to enable KVMGT support for Intel GVT-g. +config DRM_I915_PXP + bool "Enable Intel PXP support for Intel Gen12 and newer platform" + depends on DRM_I915 + depends on INTEL_MEI && INTEL_MEI_PXP + default n + help + PXP (Protected Xe Path) is an i915 component, available on GEN12 and + newer GPUs, that helps to establish the hardware protected session and + manage the status of the alive software session, as well as its life + cycle. + menu "drm/i915 Debugging" depends on DRM_I915 depends on EXPERT diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 9d371be7dc5c..cdc244bbbfc1 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -13,13 +13,11 @@ # will most likely get a sudden build breakage... Hopefully we will fix # new warnings before CI updates! subdir-ccflags-y := -Wall -Wextra -subdir-ccflags-y += $(call cc-disable-warning, unused-parameter) -subdir-ccflags-y += $(call cc-disable-warning, type-limits) -subdir-ccflags-y += $(call cc-disable-warning, missing-field-initializers) +subdir-ccflags-y += -Wno-unused-parameter +subdir-ccflags-y += -Wno-type-limits +subdir-ccflags-y += -Wno-missing-field-initializers +subdir-ccflags-y += -Wno-sign-compare subdir-ccflags-y += $(call cc-disable-warning, unused-but-set-variable) -# clang warnings -subdir-ccflags-y += $(call cc-disable-warning, sign-compare) -subdir-ccflags-y += $(call cc-disable-warning, initializer-overrides) subdir-ccflags-y += $(call cc-disable-warning, frame-address) subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror @@ -78,9 +76,6 @@ i915-$(CONFIG_PERF_EVENTS) += i915_pmu.o # "Graphics Technology" (aka we talk to the gpu) gt-y += \ - gt/debugfs_engines.o \ - gt/debugfs_gt.o \ - gt/debugfs_gt_pm.o \ gt/gen2_engine_cs.o \ gt/gen6_engine_cs.o \ gt/gen6_ppgtt.o \ @@ -100,8 +95,11 @@ gt-y += \ gt/intel_gt.o \ gt/intel_gt_buffer_pool.o \ gt/intel_gt_clock_utils.o \ + gt/intel_gt_debugfs.o \ + gt/intel_gt_engines_debugfs.o \ gt/intel_gt_irq.o \ gt/intel_gt_pm.o \ + gt/intel_gt_pm_debugfs.o \ gt/intel_gt_pm_irq.o \ gt/intel_gt_requests.o \ gt/intel_gtt.o \ @@ -154,6 +152,7 @@ gem-y += \ gem/i915_gem_throttle.o \ gem/i915_gem_tiling.o \ gem/i915_gem_ttm.o \ + gem/i915_gem_ttm_pm.o \ gem/i915_gem_userptr.o \ gem/i915_gem_wait.o \ gem/i915_gemfs.o @@ -280,6 +279,16 @@ i915-y += \ i915-y += i915_perf.o +# Protected execution platform (PXP) support +i915-$(CONFIG_DRM_I915_PXP) += \ + pxp/intel_pxp.o \ + pxp/intel_pxp_cmd.o \ + pxp/intel_pxp_debugfs.o \ + pxp/intel_pxp_irq.o \ + pxp/intel_pxp_pm.o \ + pxp/intel_pxp_session.o \ + pxp/intel_pxp_tee.o + # Post-mortem debug and GPU hang state capture i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o i915-$(CONFIG_DRM_I915_SELFTEST) += \ diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 873b6b0c0581..8faa7f729547 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -71,6 +71,8 @@ #include "gt/intel_rps.h" #include "gt/gen8_ppgtt.h" +#include "pxp/intel_pxp.h" + #include "g4x_dp.h" #include "g4x_hdmi.h" #include "i915_drv.h" @@ -8987,13 +8989,28 @@ static int intel_bigjoiner_add_affected_planes(struct intel_atomic_state *state) return 0; } +static bool bo_has_valid_encryption(struct drm_i915_gem_object *obj) +{ + struct drm_i915_private *i915 = to_i915(obj->base.dev); + + return intel_pxp_key_check(&i915->gt.pxp, obj, false) == 0; +} + +static bool pxp_is_borked(struct drm_i915_gem_object *obj) +{ + return i915_gem_object_is_protected(obj) && !bo_has_valid_encryption(obj); +} + static int intel_atomic_check_planes(struct intel_atomic_state *state) { struct drm_i915_private *dev_priv = to_i915(state->base.dev); struct intel_crtc_state *old_crtc_state, *new_crtc_state; struct intel_plane_state *plane_state; struct intel_plane *plane; + struct intel_plane_state *new_plane_state; + struct intel_plane_state *old_plane_state; struct intel_crtc *crtc; + const struct drm_framebuffer *fb; int i, ret; ret = icl_add_linked_planes(state); @@ -9041,6 +9058,19 @@ static int intel_atomic_check_planes(struct intel_atomic_state *state) return ret; } + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + new_plane_state = intel_atomic_get_new_plane_state(state, plane); + old_plane_state = intel_atomic_get_old_plane_state(state, plane); + fb = new_plane_state->hw.fb; + if (fb) { + new_plane_state->decrypt = bo_has_valid_encryption(intel_fb_obj(fb)); + new_plane_state->force_black = pxp_is_borked(intel_fb_obj(fb)); + } else { + new_plane_state->decrypt = old_plane_state->decrypt; + new_plane_state->force_black = old_plane_state->force_black; + } + } + return 0; } @@ -9327,6 +9357,10 @@ static int intel_atomic_check_async(struct intel_atomic_state *state) drm_dbg_kms(&i915->drm, "Color range cannot be changed in async flip\n"); return -EINVAL; } + + /* plane decryption is allow to change only in synchronous flips */ + if (old_plane_state->decrypt != new_plane_state->decrypt) + return -EINVAL; } return 0; diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index a811e13720bf..21ce8bccc645 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -626,6 +626,12 @@ struct intel_plane_state { struct intel_fb_view view; + /* Plane pxp decryption state */ + bool decrypt; + + /* Plane state to display black pixels when pxp is borked */ + bool force_black; + /* plane control register */ u32 ctl; diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index 91f1be7174e5..a0e53a3b267a 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -18,6 +18,7 @@ #include "intel_sprite.h" #include "skl_scaler.h" #include "skl_universal_plane.h" +#include "pxp/intel_pxp.h" static const u32 skl_plane_formats[] = { DRM_FORMAT_C8, @@ -1007,6 +1008,33 @@ static u32 skl_surf_address(const struct intel_plane_state *plane_state, } } +static void intel_load_plane_csc_black(struct intel_plane *intel_plane) +{ + struct drm_i915_private *dev_priv = to_i915(intel_plane->base.dev); + enum pipe pipe = intel_plane->pipe; + enum plane_id plane = intel_plane->id; + u16 postoff = 0; + + drm_dbg_kms(&dev_priv->drm, "plane color CTM to black %s:%d\n", + intel_plane->base.name, plane); + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 0), 0); + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 1), 0); + + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 2), 0); + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 3), 0); + + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 4), 0); + intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 5), 0); + + intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 0), 0); + intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 1), 0); + intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 2), 0); + + intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 0), postoff); + intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 1), postoff); + intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 2), postoff); +} + static void skl_program_plane(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, @@ -1030,7 +1058,7 @@ skl_program_plane(struct intel_plane *plane, u8 alpha = plane_state->hw.alpha >> 8; u32 plane_color_ctl = 0, aux_dist = 0; unsigned long irqflags; - u32 keymsk, keymax; + u32 keymsk, keymax, plane_surf; u32 plane_ctl = plane_state->ctl; plane_ctl |= skl_plane_ctl_crtc(crtc_state); @@ -1118,8 +1146,23 @@ skl_program_plane(struct intel_plane *plane, * the control register just before the surface register. */ intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); - intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), - intel_plane_ggtt_offset(plane_state) + surf_addr); + plane_surf = intel_plane_ggtt_offset(plane_state) + surf_addr; + plane_color_ctl = intel_de_read_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id)); + + /* + * FIXME: pxp session invalidation can hit any time even at time of commit + * or after the commit, display content will be garbage. + */ + if (plane_state->decrypt) { + plane_surf |= PLANE_SURF_DECRYPT; + } else if (plane_state->force_black) { + intel_load_plane_csc_black(plane); + plane_color_ctl |= PLANE_COLOR_PLANE_CSC_ENABLE; + } + + intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), + plane_color_ctl); + intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), plane_surf); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 9ccf4b29b82e..d225d3dd0b40 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -77,6 +77,8 @@ #include "gt/intel_gpu_commands.h" #include "gt/intel_ring.h" +#include "pxp/intel_pxp.h" + #include "i915_gem_context.h" #include "i915_trace.h" #include "i915_user_extensions.h" @@ -186,10 +188,13 @@ static int validate_priority(struct drm_i915_private *i915, return 0; } -static void proto_context_close(struct i915_gem_proto_context *pc) +static void proto_context_close(struct drm_i915_private *i915, + struct i915_gem_proto_context *pc) { int i; + if (pc->pxp_wakeref) + intel_runtime_pm_put(&i915->runtime_pm, pc->pxp_wakeref); if (pc->vm) i915_vm_put(pc->vm); if (pc->user_engines) { @@ -241,6 +246,35 @@ static int proto_context_set_persistence(struct drm_i915_private *i915, return 0; } +static int proto_context_set_protected(struct drm_i915_private *i915, + struct i915_gem_proto_context *pc, + bool protected) +{ + int ret = 0; + + if (!protected) { + pc->uses_protected_content = false; + } else if (!intel_pxp_is_enabled(&i915->gt.pxp)) { + ret = -ENODEV; + } else if ((pc->user_flags & BIT(UCONTEXT_RECOVERABLE)) || + !(pc->user_flags & BIT(UCONTEXT_BANNABLE))) { + ret = -EPERM; + } else { + pc->uses_protected_content = true; + + /* + * protected context usage requires the PXP session to be up, + * which in turn requires the device to be active. + */ + pc->pxp_wakeref = intel_runtime_pm_get(&i915->runtime_pm); + + if (!intel_pxp_is_active(&i915->gt.pxp)) + ret = intel_pxp_start(&i915->gt.pxp); + } + + return ret; +} + static struct i915_gem_proto_context * proto_context_create(struct drm_i915_private *i915, unsigned int flags) { @@ -269,7 +303,7 @@ proto_context_create(struct drm_i915_private *i915, unsigned int flags) return pc; proto_close: - proto_context_close(pc); + proto_context_close(i915, pc); return err; } @@ -442,6 +476,13 @@ set_proto_ctx_engines_bond(struct i915_user_extension __user *base, void *data) u16 idx, num_bonds; int err, n; + if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915) && + !IS_ROCKETLAKE(i915) && !IS_ALDERLAKE_S(i915)) { + drm_dbg(&i915->drm, + "Bonding on gen12+ aside from TGL, RKL, and ADL_S not supported\n"); + return -ENODEV; + } + if (get_user(idx, &ext->virtual_index)) return -EFAULT; @@ -686,6 +727,8 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv, ret = -EPERM; else if (args->value) pc->user_flags |= BIT(UCONTEXT_BANNABLE); + else if (pc->uses_protected_content) + ret = -EPERM; else pc->user_flags &= ~BIT(UCONTEXT_BANNABLE); break; @@ -693,10 +736,12 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv, case I915_CONTEXT_PARAM_RECOVERABLE: if (args->size) ret = -EINVAL; - else if (args->value) - pc->user_flags |= BIT(UCONTEXT_RECOVERABLE); - else + else if (!args->value) pc->user_flags &= ~BIT(UCONTEXT_RECOVERABLE); + else if (pc->uses_protected_content) + ret = -EPERM; + else + pc->user_flags |= BIT(UCONTEXT_RECOVERABLE); break; case I915_CONTEXT_PARAM_PRIORITY: @@ -724,6 +769,11 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv, args->value); break; + case I915_CONTEXT_PARAM_PROTECTED_CONTENT: + ret = proto_context_set_protected(fpriv->dev_priv, pc, + args->value); + break; + case I915_CONTEXT_PARAM_NO_ZEROMAP: case I915_CONTEXT_PARAM_BAN_PERIOD: case I915_CONTEXT_PARAM_RINGSIZE: @@ -735,44 +785,6 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv, return ret; } -static struct i915_address_space * -context_get_vm_rcu(struct i915_gem_context *ctx) -{ - GEM_BUG_ON(!rcu_access_pointer(ctx->vm)); - - do { - struct i915_address_space *vm; - - /* - * We do not allow downgrading from full-ppgtt [to a shared - * global gtt], so ctx->vm cannot become NULL. - */ - vm = rcu_dereference(ctx->vm); - if (!kref_get_unless_zero(&vm->ref)) - continue; - - /* - * This ppgtt may have be reallocated between - * the read and the kref, and reassigned to a third - * context. In order to avoid inadvertent sharing - * of this ppgtt with that third context (and not - * src), we have to confirm that we have the same - * ppgtt after passing through the strong memory - * barrier implied by a successful - * kref_get_unless_zero(). - * - * Once we have acquired the current ppgtt of ctx, - * we no longer care if it is released from ctx, as - * it cannot be reallocated elsewhere. - */ - - if (vm == rcu_access_pointer(ctx->vm)) - return rcu_pointer_handoff(vm); - - i915_vm_put(vm); - } while (1); -} - static int intel_context_set_gem(struct intel_context *ce, struct i915_gem_context *ctx, struct intel_sseu sseu) @@ -784,23 +796,15 @@ static int intel_context_set_gem(struct intel_context *ce, ce->ring_size = SZ_16K; - if (rcu_access_pointer(ctx->vm)) { - struct i915_address_space *vm; - - rcu_read_lock(); - vm = context_get_vm_rcu(ctx); /* hmm */ - rcu_read_unlock(); - - i915_vm_put(ce->vm); - ce->vm = vm; - } + i915_vm_put(ce->vm); + ce->vm = i915_gem_context_get_eb_vm(ctx); if (ctx->sched.priority >= I915_PRIORITY_NORMAL && intel_engine_has_timeslices(ce->engine) && intel_engine_has_semaphores(ce->engine)) __set_bit(CONTEXT_USE_SEMAPHORES, &ce->flags); - if (IS_ACTIVE(CONFIG_DRM_I915_REQUEST_TIMEOUT) && + if (CONFIG_DRM_I915_REQUEST_TIMEOUT && ctx->i915->params.request_timeout_ms) { unsigned int timeout_ms = ctx->i915->params.request_timeout_ms; @@ -937,6 +941,10 @@ static struct i915_gem_engines *user_engines(struct i915_gem_context *ctx, unsigned int n; e = alloc_engines(num_engines); + if (!e) + return ERR_PTR(-ENOMEM); + e->num_engines = num_engines; + for (n = 0; n < num_engines; n++) { struct intel_context *ce; int ret; @@ -970,7 +978,6 @@ static struct i915_gem_engines *user_engines(struct i915_gem_context *ctx, goto free_engines; } } - e->num_engines = num_engines; return e; @@ -979,9 +986,11 @@ free_engines: return err; } -void i915_gem_context_release(struct kref *ref) +static void i915_gem_context_release_work(struct work_struct *work) { - struct i915_gem_context *ctx = container_of(ref, typeof(*ctx), ref); + struct i915_gem_context *ctx = container_of(work, typeof(*ctx), + release_work); + struct i915_address_space *vm; trace_i915_context_free(ctx); GEM_BUG_ON(!i915_gem_context_is_closed(ctx)); @@ -989,6 +998,13 @@ void i915_gem_context_release(struct kref *ref) if (ctx->syncobj) drm_syncobj_put(ctx->syncobj); + vm = ctx->vm; + if (vm) + i915_vm_put(vm); + + if (ctx->pxp_wakeref) + intel_runtime_pm_put(&ctx->i915->runtime_pm, ctx->pxp_wakeref); + mutex_destroy(&ctx->engines_mutex); mutex_destroy(&ctx->lut_mutex); @@ -998,6 +1014,13 @@ void i915_gem_context_release(struct kref *ref) kfree_rcu(ctx, rcu); } +void i915_gem_context_release(struct kref *ref) +{ + struct i915_gem_context *ctx = container_of(ref, typeof(*ctx), ref); + + queue_work(ctx->i915->wq, &ctx->release_work); +} + static inline struct i915_gem_engines * __context_engines_static(const struct i915_gem_context *ctx) { @@ -1204,9 +1227,16 @@ static void context_close(struct i915_gem_context *ctx) set_closed_name(ctx); - vm = i915_gem_context_vm(ctx); - if (vm) + vm = ctx->vm; + if (vm) { + /* i915_vm_close drops the final reference, which is a bit too + * early and could result in surprises with concurrent + * operations racing with thist ctx close. Keep a full reference + * until the end. + */ + i915_vm_get(vm); i915_vm_close(vm); + } ctx->file_priv = ERR_PTR(-EBADF); @@ -1277,49 +1307,6 @@ static int __context_set_persistence(struct i915_gem_context *ctx, bool state) return 0; } -static inline struct i915_gem_engines * -__context_engines_await(const struct i915_gem_context *ctx, - bool *user_engines) -{ - struct i915_gem_engines *engines; - - rcu_read_lock(); - do { - engines = rcu_dereference(ctx->engines); - GEM_BUG_ON(!engines); - - if (user_engines) - *user_engines = i915_gem_context_user_engines(ctx); - - /* successful await => strong mb */ - if (unlikely(!i915_sw_fence_await(&engines->fence))) - continue; - - if (likely(engines == rcu_access_pointer(ctx->engines))) - break; - - i915_sw_fence_complete(&engines->fence); - } while (1); - rcu_read_unlock(); - - return engines; -} - -static void -context_apply_all(struct i915_gem_context *ctx, - void (*fn)(struct intel_context *ce, void *data), - void *data) -{ - struct i915_gem_engines_iter it; - struct i915_gem_engines *e; - struct intel_context *ce; - - e = __context_engines_await(ctx, NULL); - for_each_gem_engine(ce, e, it) - fn(ce, data); - i915_sw_fence_complete(&e->fence); -} - static struct i915_gem_context * i915_gem_create_context(struct drm_i915_private *i915, const struct i915_gem_proto_context *pc) @@ -1339,6 +1326,7 @@ i915_gem_create_context(struct drm_i915_private *i915, ctx->sched = pc->sched; mutex_init(&ctx->mutex); INIT_LIST_HEAD(&ctx->link); + INIT_WORK(&ctx->release_work, i915_gem_context_release_work); spin_lock_init(&ctx->stale.lock); INIT_LIST_HEAD(&ctx->stale.engines); @@ -1348,7 +1336,7 @@ i915_gem_create_context(struct drm_i915_private *i915, } else if (HAS_FULL_PPGTT(i915)) { struct i915_ppgtt *ppgtt; - ppgtt = i915_ppgtt_create(&i915->gt); + ppgtt = i915_ppgtt_create(&i915->gt, 0); if (IS_ERR(ppgtt)) { drm_dbg(&i915->drm, "PPGTT setup failed (%ld)\n", PTR_ERR(ppgtt)); @@ -1358,7 +1346,7 @@ i915_gem_create_context(struct drm_i915_private *i915, vm = &ppgtt->vm; } if (vm) { - RCU_INIT_POINTER(ctx->vm, i915_vm_open(vm)); + ctx->vm = i915_vm_open(vm); /* i915_vm_open() takes a reference */ i915_vm_put(vm); @@ -1399,6 +1387,11 @@ i915_gem_create_context(struct drm_i915_private *i915, goto err_engines; } + if (pc->uses_protected_content) { + ctx->pxp_wakeref = intel_runtime_pm_get(&i915->runtime_pm); + ctx->uses_protected_content = true; + } + trace_i915_context_create(ctx); return ctx; @@ -1470,7 +1463,7 @@ int i915_gem_context_open(struct drm_i915_private *i915, } ctx = i915_gem_create_context(i915, pc); - proto_context_close(pc); + proto_context_close(i915, pc); if (IS_ERR(ctx)) { err = PTR_ERR(ctx); goto err; @@ -1497,7 +1490,7 @@ void i915_gem_context_close(struct drm_file *file) unsigned long idx; xa_for_each(&file_priv->proto_context_xa, idx, pc) - proto_context_close(pc); + proto_context_close(file_priv->dev_priv, pc); xa_destroy(&file_priv->proto_context_xa); mutex_destroy(&file_priv->proto_context_lock); @@ -1526,7 +1519,7 @@ int i915_gem_vm_create_ioctl(struct drm_device *dev, void *data, if (args->flags) return -EINVAL; - ppgtt = i915_ppgtt_create(&i915->gt); + ppgtt = i915_ppgtt_create(&i915->gt, 0); if (IS_ERR(ppgtt)) return PTR_ERR(ppgtt); @@ -1581,18 +1574,15 @@ static int get_ppgtt(struct drm_i915_file_private *file_priv, int err; u32 id; - if (!rcu_access_pointer(ctx->vm)) + if (!i915_gem_context_has_full_ppgtt(ctx)) return -ENODEV; - rcu_read_lock(); - vm = context_get_vm_rcu(ctx); - rcu_read_unlock(); - if (!vm) - return -ENODEV; + vm = ctx->vm; + GEM_BUG_ON(!vm); err = xa_alloc(&file_priv->vm_xa, &id, vm, xa_limit_32b, GFP_KERNEL); if (err) - goto err_put; + return err; i915_vm_open(vm); @@ -1600,8 +1590,6 @@ static int get_ppgtt(struct drm_i915_file_private *file_priv, args->value = id; args->size = 0; -err_put: - i915_vm_put(vm); return err; } @@ -1769,23 +1757,11 @@ set_persistence(struct i915_gem_context *ctx, return __context_set_persistence(ctx, args->value); } -static void __apply_priority(struct intel_context *ce, void *arg) -{ - struct i915_gem_context *ctx = arg; - - if (!intel_engine_has_timeslices(ce->engine)) - return; - - if (ctx->sched.priority >= I915_PRIORITY_NORMAL && - intel_engine_has_semaphores(ce->engine)) - intel_context_set_use_semaphores(ce); - else - intel_context_clear_use_semaphores(ce); -} - static int set_priority(struct i915_gem_context *ctx, const struct drm_i915_gem_context_param *args) { + struct i915_gem_engines_iter it; + struct intel_context *ce; int err; err = validate_priority(ctx->i915, args); @@ -1793,7 +1769,27 @@ static int set_priority(struct i915_gem_context *ctx, return err; ctx->sched.priority = args->value; - context_apply_all(ctx, __apply_priority, ctx); + + for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) { + if (!intel_engine_has_timeslices(ce->engine)) + continue; + + if (ctx->sched.priority >= I915_PRIORITY_NORMAL && + intel_engine_has_semaphores(ce->engine)) + intel_context_set_use_semaphores(ce); + else + intel_context_clear_use_semaphores(ce); + } + i915_gem_context_unlock_engines(ctx); + + return 0; +} + +static int get_protected(struct i915_gem_context *ctx, + struct drm_i915_gem_context_param *args) +{ + args->size = 0; + args->value = i915_gem_context_uses_protected_content(ctx); return 0; } @@ -1821,6 +1817,8 @@ static int ctx_setparam(struct drm_i915_file_private *fpriv, ret = -EPERM; else if (args->value) i915_gem_context_set_bannable(ctx); + else if (i915_gem_context_uses_protected_content(ctx)) + ret = -EPERM; /* can't clear this for protected contexts */ else i915_gem_context_clear_bannable(ctx); break; @@ -1828,10 +1826,12 @@ static int ctx_setparam(struct drm_i915_file_private *fpriv, case I915_CONTEXT_PARAM_RECOVERABLE: if (args->size) ret = -EINVAL; - else if (args->value) - i915_gem_context_set_recoverable(ctx); - else + else if (!args->value) i915_gem_context_clear_recoverable(ctx); + else if (i915_gem_context_uses_protected_content(ctx)) + ret = -EPERM; /* can't set this for protected contexts */ + else + i915_gem_context_set_recoverable(ctx); break; case I915_CONTEXT_PARAM_PRIORITY: @@ -1846,6 +1846,7 @@ static int ctx_setparam(struct drm_i915_file_private *fpriv, ret = set_persistence(ctx, args); break; + case I915_CONTEXT_PARAM_PROTECTED_CONTENT: case I915_CONTEXT_PARAM_NO_ZEROMAP: case I915_CONTEXT_PARAM_BAN_PERIOD: case I915_CONTEXT_PARAM_RINGSIZE: @@ -1924,7 +1925,7 @@ finalize_create_context_locked(struct drm_i915_file_private *file_priv, old = xa_erase(&file_priv->proto_context_xa, id); GEM_BUG_ON(old != pc); - proto_context_close(pc); + proto_context_close(file_priv->dev_priv, pc); /* One for the xarray and one for the caller */ return i915_gem_context_get(ctx); @@ -2010,7 +2011,7 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, goto err_pc; } - proto_context_close(ext_data.pc); + proto_context_close(i915, ext_data.pc); gem_context_register(ctx, ext_data.fpriv, id); } else { ret = proto_context_register(ext_data.fpriv, ext_data.pc, &id); @@ -2024,7 +2025,7 @@ int i915_gem_context_create_ioctl(struct drm_device *dev, void *data, return 0; err_pc: - proto_context_close(ext_data.pc); + proto_context_close(i915, ext_data.pc); return ret; } @@ -2055,7 +2056,7 @@ int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data, GEM_WARN_ON(ctx && pc); if (pc) - proto_context_close(pc); + proto_context_close(file_priv->dev_priv, pc); if (ctx) context_close(ctx); @@ -2124,6 +2125,7 @@ int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, struct drm_i915_file_private *file_priv = file->driver_priv; struct drm_i915_gem_context_param *args = data; struct i915_gem_context *ctx; + struct i915_address_space *vm; int ret = 0; ctx = i915_gem_context_lookup(file_priv, args->ctx_id); @@ -2133,12 +2135,10 @@ int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, switch (args->param) { case I915_CONTEXT_PARAM_GTT_SIZE: args->size = 0; - rcu_read_lock(); - if (rcu_access_pointer(ctx->vm)) - args->value = rcu_dereference(ctx->vm)->total; - else - args->value = to_i915(dev)->ggtt.vm.total; - rcu_read_unlock(); + vm = i915_gem_context_get_eb_vm(ctx); + args->value = vm->total; + i915_vm_put(vm); + break; case I915_CONTEXT_PARAM_NO_ERROR_CAPTURE: @@ -2174,6 +2174,10 @@ int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data, args->value = i915_gem_context_is_persistent(ctx); break; + case I915_CONTEXT_PARAM_PROTECTED_CONTENT: + ret = get_protected(ctx, args); + break; + case I915_CONTEXT_PARAM_NO_ZEROMAP: case I915_CONTEXT_PARAM_BAN_PERIOD: case I915_CONTEXT_PARAM_ENGINES: diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.h b/drivers/gpu/drm/i915/gem/i915_gem_context.h index 18060536b0c2..babfecb17ad1 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h @@ -108,6 +108,12 @@ i915_gem_context_clear_user_engines(struct i915_gem_context *ctx) clear_bit(CONTEXT_USER_ENGINES, &ctx->flags); } +static inline bool +i915_gem_context_uses_protected_content(const struct i915_gem_context *ctx) +{ + return ctx->uses_protected_content; +} + /* i915_gem_context.c */ void i915_gem_init__contexts(struct drm_i915_private *i915); @@ -154,17 +160,22 @@ i915_gem_context_vm(struct i915_gem_context *ctx) return rcu_dereference_protected(ctx->vm, lockdep_is_held(&ctx->mutex)); } +static inline bool i915_gem_context_has_full_ppgtt(struct i915_gem_context *ctx) +{ + GEM_BUG_ON(!!ctx->vm != HAS_FULL_PPGTT(ctx->i915)); + + return !!ctx->vm; +} + static inline struct i915_address_space * -i915_gem_context_get_vm_rcu(struct i915_gem_context *ctx) +i915_gem_context_get_eb_vm(struct i915_gem_context *ctx) { struct i915_address_space *vm; - rcu_read_lock(); - vm = rcu_dereference(ctx->vm); + vm = ctx->vm; if (!vm) vm = &ctx->i915->ggtt.vm; vm = i915_vm_get(vm); - rcu_read_unlock(); return vm; } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h index 94c03a97cb77..a627b09c4680 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h @@ -198,6 +198,12 @@ struct i915_gem_proto_context { /** @single_timeline: See See &i915_gem_context.syncobj */ bool single_timeline; + + /** @uses_protected_content: See &i915_gem_context.uses_protected_content */ + bool uses_protected_content; + + /** @pxp_wakeref: See &i915_gem_context.pxp_wakeref */ + intel_wakeref_t pxp_wakeref; }; /** @@ -262,7 +268,7 @@ struct i915_gem_context { * In other modes, this is a NULL pointer with the expectation that * the caller uses the shared global GTT. */ - struct i915_address_space __rcu *vm; + struct i915_address_space *vm; /** * @pid: process id of creator @@ -289,6 +295,18 @@ struct i915_gem_context { struct kref ref; /** + * @release_work: + * + * Work item for deferred cleanup, since i915_gem_context_put() tends to + * be called from hardirq context. + * + * FIXME: The only real reason for this is &i915_gem_engines.fence, all + * other callers are from process context and need at most some mild + * shuffling to pull the i915_gem_context_put() call out of a spinlock. + */ + struct work_struct release_work; + + /** * @rcu: rcu_head for deferred freeing. */ struct rcu_head rcu; @@ -309,6 +327,28 @@ struct i915_gem_context { #define CONTEXT_CLOSED 0 #define CONTEXT_USER_ENGINES 1 + /** + * @uses_protected_content: context uses PXP-encrypted objects. + * + * This flag can only be set at ctx creation time and it's immutable for + * the lifetime of the context. See I915_CONTEXT_PARAM_PROTECTED_CONTENT + * in uapi/drm/i915_drm.h for more info on setting restrictions and + * expected behaviour of marked contexts. + */ + bool uses_protected_content; + + /** + * @pxp_wakeref: wakeref to keep the device awake when PXP is in use + * + * PXP sessions are invalidated when the device is suspended, which in + * turns invalidates all contexts and objects using it. To keep the + * flow simple, we keep the device awake when contexts using PXP objects + * are in use. It is expected that the userspace application only uses + * PXP when the display is on, so taking a wakeref here shouldn't worsen + * our power metrics. + */ + intel_wakeref_t pxp_wakeref; + /** @mutex: guards everything that isn't engines or handles_vma */ struct mutex mutex; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index 23fee13a3384..8955d6abcef1 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -6,6 +6,7 @@ #include "gem/i915_gem_ioctls.h" #include "gem/i915_gem_lmem.h" #include "gem/i915_gem_region.h" +#include "pxp/intel_pxp.h" #include "i915_drv.h" #include "i915_trace.h" @@ -82,21 +83,11 @@ static int i915_gem_publish(struct drm_i915_gem_object *obj, return 0; } -/** - * Creates a new object using the same path as DRM_I915_GEM_CREATE_EXT - * @i915: i915 private - * @size: size of the buffer, in bytes - * @placements: possible placement regions, in priority order - * @n_placements: number of possible placement regions - * - * This function is exposed primarily for selftests and does very little - * error checking. It is assumed that the set of placement regions has - * already been verified to be valid. - */ -struct drm_i915_gem_object * -__i915_gem_object_create_user(struct drm_i915_private *i915, u64 size, - struct intel_memory_region **placements, - unsigned int n_placements) +static struct drm_i915_gem_object * +__i915_gem_object_create_user_ext(struct drm_i915_private *i915, u64 size, + struct intel_memory_region **placements, + unsigned int n_placements, + unsigned int ext_flags) { struct intel_memory_region *mr = placements[0]; struct drm_i915_gem_object *obj; @@ -135,6 +126,9 @@ __i915_gem_object_create_user(struct drm_i915_private *i915, u64 size, GEM_BUG_ON(size != obj->base.size); + /* Add any flag set by create_ext options */ + obj->flags |= ext_flags; + trace_i915_gem_object_create(obj); return obj; @@ -145,6 +139,26 @@ object_free: return ERR_PTR(ret); } +/** + * Creates a new object using the same path as DRM_I915_GEM_CREATE_EXT + * @i915: i915 private + * @size: size of the buffer, in bytes + * @placements: possible placement regions, in priority order + * @n_placements: number of possible placement regions + * + * This function is exposed primarily for selftests and does very little + * error checking. It is assumed that the set of placement regions has + * already been verified to be valid. + */ +struct drm_i915_gem_object * +__i915_gem_object_create_user(struct drm_i915_private *i915, u64 size, + struct intel_memory_region **placements, + unsigned int n_placements) +{ + return __i915_gem_object_create_user_ext(i915, size, placements, + n_placements, 0); +} + int i915_gem_dumb_create(struct drm_file *file, struct drm_device *dev, @@ -224,6 +238,7 @@ struct create_ext { struct drm_i915_private *i915; struct intel_memory_region *placements[INTEL_REGION_UNKNOWN]; unsigned int n_placements; + unsigned long flags; }; static void repr_placements(char *buf, size_t size, @@ -347,17 +362,34 @@ static int ext_set_placements(struct i915_user_extension __user *base, { struct drm_i915_gem_create_ext_memory_regions ext; - if (!IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) - return -ENODEV; - if (copy_from_user(&ext, base, sizeof(ext))) return -EFAULT; return set_placements(&ext, data); } +static int ext_set_protected(struct i915_user_extension __user *base, void *data) +{ + struct drm_i915_gem_create_ext_protected_content ext; + struct create_ext *ext_data = data; + + if (copy_from_user(&ext, base, sizeof(ext))) + return -EFAULT; + + if (ext.flags) + return -EINVAL; + + if (!intel_pxp_is_enabled(&ext_data->i915->gt.pxp)) + return -ENODEV; + + ext_data->flags |= I915_BO_PROTECTED; + + return 0; +} + static const i915_user_extension_fn create_extensions[] = { [I915_GEM_CREATE_EXT_MEMORY_REGIONS] = ext_set_placements, + [I915_GEM_CREATE_EXT_PROTECTED_CONTENT] = ext_set_protected, }; /** @@ -392,9 +424,10 @@ i915_gem_create_ext_ioctl(struct drm_device *dev, void *data, ext_data.n_placements = 1; } - obj = __i915_gem_object_create_user(i915, args->size, - ext_data.placements, - ext_data.n_placements); + obj = __i915_gem_object_create_user_ext(i915, args->size, + ext_data.placements, + ext_data.n_placements, + ext_data.flags); if (IS_ERR(obj)) return PTR_ERR(obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 1aa249908b64..8b3a25bd93e6 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -21,6 +21,8 @@ #include "gt/intel_gt_pm.h" #include "gt/intel_ring.h" +#include "pxp/intel_pxp.h" + #include "i915_drv.h" #include "i915_gem_clflush.h" #include "i915_gem_context.h" @@ -733,7 +735,7 @@ static int eb_select_context(struct i915_execbuffer *eb) return PTR_ERR(ctx); eb->gem_context = ctx; - if (rcu_access_pointer(ctx->vm)) + if (i915_gem_context_has_full_ppgtt(ctx)) eb->invalid_flags |= EXEC_OBJECT_NEEDS_GTT; return 0; @@ -759,11 +761,7 @@ static int __eb_add_lut(struct i915_execbuffer *eb, /* Check that the context hasn't been closed in the meantime */ err = -EINTR; if (!mutex_lock_interruptible(&ctx->lut_mutex)) { - struct i915_address_space *vm = rcu_access_pointer(ctx->vm); - - if (unlikely(vm && vma->vm != vm)) - err = -EAGAIN; /* user racing with ctx set-vm */ - else if (likely(!i915_gem_context_is_closed(ctx))) + if (likely(!i915_gem_context_is_closed(ctx))) err = radix_tree_insert(&ctx->handles_vma, handle, vma); else err = -ENOENT; @@ -814,6 +812,22 @@ static struct i915_vma *eb_lookup_vma(struct i915_execbuffer *eb, u32 handle) if (unlikely(!obj)) return ERR_PTR(-ENOENT); + /* + * If the user has opted-in for protected-object tracking, make + * sure the object encryption can be used. + * We only need to do this when the object is first used with + * this context, because the context itself will be banned when + * the protected objects become invalid. + */ + if (i915_gem_context_uses_protected_content(eb->gem_context) && + i915_gem_object_is_protected(obj)) { + err = intel_pxp_key_check(&vm->gt->pxp, obj, true); + if (err) { + i915_gem_object_put(obj); + return ERR_PTR(err); + } + } + vma = i915_vma_instance(obj, vm, NULL); if (IS_ERR(vma)) { i915_gem_object_put(obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c index eb345305dc52..444f8268b9c5 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.c @@ -56,8 +56,8 @@ bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) * @obj: The object to check. * * This function is intended to be called from within the fence signaling - * path where the fence keeps the object from being migrated. For example - * during gpu reset or similar. + * path where the fence, or a pin, keeps the object from being migrated. For + * example during gpu reset or similar. * * Return: Whether the object is resident in lmem. */ @@ -66,7 +66,8 @@ bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) struct intel_memory_region *mr = READ_ONCE(obj->mm.region); #ifdef CONFIG_LOCKDEP - GEM_WARN_ON(dma_resv_test_signaled(obj->base.resv, true)); + GEM_WARN_ON(dma_resv_test_signaled(obj->base.resv, true) && + i915_gem_object_evictable(obj)); #endif return mr && (mr->type == INTEL_MEMORY_LOCAL || mr->type == INTEL_MEMORY_STOLEN_LOCAL); @@ -104,6 +105,32 @@ __i915_gem_object_create_lmem_with_ps(struct drm_i915_private *i915, } struct drm_i915_gem_object * +i915_gem_object_create_lmem_from_data(struct drm_i915_private *i915, + const void *data, size_t size) +{ + struct drm_i915_gem_object *obj; + void *map; + + obj = i915_gem_object_create_lmem(i915, + round_up(size, PAGE_SIZE), + I915_BO_ALLOC_CONTIGUOUS); + if (IS_ERR(obj)) + return obj; + + map = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WC); + if (IS_ERR(map)) { + i915_gem_object_put(obj); + return map; + } + + memcpy(map, data, size); + + i915_gem_object_unpin_map(obj); + + return obj; +} + +struct drm_i915_gem_object * i915_gem_object_create_lmem(struct drm_i915_private *i915, resource_size_t size, unsigned int flags) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h index 4ee81fc66302..1b88ea13435c 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_lmem.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_lmem.h @@ -24,6 +24,10 @@ bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj); bool __i915_gem_object_is_lmem(struct drm_i915_gem_object *obj); struct drm_i915_gem_object * +i915_gem_object_create_lmem_from_data(struct drm_i915_private *i915, + const void *data, size_t size); + +struct drm_i915_gem_object * __i915_gem_object_create_lmem_with_ps(struct drm_i915_private *i915, resource_size_t size, resource_size_t page_size, diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index 5130e8ed9564..65fc6ff5f59d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -395,7 +395,7 @@ retry: /* Track the mmo associated with the fenced vma */ vma->mmo = mmo; - if (IS_ACTIVE(CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND)) + if (CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND) intel_wakeref_auto(&i915->ggtt.userfault_wakeref, msecs_to_jiffies_timeout(CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND)); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index 6fb9afb65034..76ce6a1500bc 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -25,6 +25,7 @@ #include <linux/sched/mm.h> #include "display/intel_frontbuffer.h" +#include "pxp/intel_pxp.h" #include "i915_drv.h" #include "i915_gem_clflush.h" #include "i915_gem_context.h" @@ -90,6 +91,22 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj, } /** + * i915_gem_object_fini - Clean up a GEM object initialization + * @obj: The gem object to cleanup + * + * This function cleans up gem object fields that are set up by + * drm_gem_private_object_init() and i915_gem_object_init(). + * It's primarily intended as a helper for backends that need to + * clean up the gem object in separate steps. + */ +void __i915_gem_object_fini(struct drm_i915_gem_object *obj) +{ + mutex_destroy(&obj->mm.get_page.lock); + mutex_destroy(&obj->mm.get_dma_page.lock); + dma_resv_fini(&obj->base._resv); +} + +/** * Mark up the object's coherency levels for a given cache_level * @obj: #drm_i915_gem_object * @cache_level: cache level @@ -174,7 +191,6 @@ void __i915_gem_free_object_rcu(struct rcu_head *head) container_of(head, typeof(*obj), rcu); struct drm_i915_private *i915 = to_i915(obj->base.dev); - dma_resv_fini(&obj->base._resv); i915_gem_object_free(obj); GEM_BUG_ON(!atomic_read(&i915->mm.free_count)); @@ -204,10 +220,17 @@ static void __i915_gem_object_free_mmaps(struct drm_i915_gem_object *obj) } } -void __i915_gem_free_object(struct drm_i915_gem_object *obj) +/** + * __i915_gem_object_pages_fini - Clean up pages use of a gem object + * @obj: The gem object to clean up + * + * This function cleans up usage of the object mm.pages member. It + * is intended for backends that need to clean up a gem object in + * separate steps and needs to be called when the object is idle before + * the object's backing memory is freed. + */ +void __i915_gem_object_pages_fini(struct drm_i915_gem_object *obj) { - trace_i915_gem_object_destroy(obj); - if (!list_empty(&obj->vma.list)) { struct i915_vma *vma; @@ -233,11 +256,17 @@ void __i915_gem_free_object(struct drm_i915_gem_object *obj) __i915_gem_object_free_mmaps(obj); - GEM_BUG_ON(!list_empty(&obj->lut_list)); - atomic_set(&obj->mm.pages_pin_count, 0); __i915_gem_object_put_pages(obj); GEM_BUG_ON(i915_gem_object_has_pages(obj)); +} + +void __i915_gem_free_object(struct drm_i915_gem_object *obj) +{ + trace_i915_gem_object_destroy(obj); + + GEM_BUG_ON(!list_empty(&obj->lut_list)); + bitmap_free(obj->bit_17); if (obj->base.import_attach) @@ -253,6 +282,8 @@ void __i915_gem_free_object(struct drm_i915_gem_object *obj) if (obj->shares_resv_from) i915_vm_resv_put(obj->shares_resv_from); + + __i915_gem_object_fini(obj); } static void __i915_gem_free_objects(struct drm_i915_private *i915, @@ -266,6 +297,7 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915, obj->ops->delayed_free(obj); continue; } + __i915_gem_object_pages_fini(obj); __i915_gem_free_object(obj); /* But keep the pointer alive for RCU-protected lookups */ diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h index 48112b9d76df..9df3ee60604e 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h @@ -58,6 +58,9 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj, const struct drm_i915_gem_object_ops *ops, struct lock_class_key *key, unsigned alloc_flags); + +void __i915_gem_object_fini(struct drm_i915_gem_object *obj); + struct drm_i915_gem_object * i915_gem_object_create_shmem(struct drm_i915_private *i915, resource_size_t size); @@ -270,6 +273,12 @@ i915_gem_object_clear_tiling_quirk(struct drm_i915_gem_object *obj) } static inline bool +i915_gem_object_is_protected(const struct drm_i915_gem_object *obj) +{ + return obj->flags & I915_BO_PROTECTED; +} + +static inline bool i915_gem_object_type_has(const struct drm_i915_gem_object *obj, unsigned long flags) { @@ -503,23 +512,6 @@ i915_gem_object_finish_access(struct drm_i915_gem_object *obj) i915_gem_object_unpin_pages(obj); } -static inline struct intel_engine_cs * -i915_gem_object_last_write_engine(struct drm_i915_gem_object *obj) -{ - struct intel_engine_cs *engine = NULL; - struct dma_fence *fence; - - rcu_read_lock(); - fence = dma_resv_get_excl_unlocked(obj->base.resv); - rcu_read_unlock(); - - if (fence && dma_fence_is_i915(fence) && !dma_fence_is_signaled(fence)) - engine = to_request(fence)->engine; - dma_fence_put(fence); - - return engine; -} - void i915_gem_object_set_cache_coherency(struct drm_i915_gem_object *obj, unsigned int cache_level); void i915_gem_object_flush_if_display(struct drm_i915_gem_object *obj); @@ -599,6 +591,8 @@ bool i915_gem_object_is_shmem(const struct drm_i915_gem_object *obj); void __i915_gem_free_object_rcu(struct rcu_head *head); +void __i915_gem_object_pages_fini(struct drm_i915_gem_object *obj); + void __i915_gem_free_object(struct drm_i915_gem_object *obj); bool i915_gem_object_evictable(struct drm_i915_gem_object *obj); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h index 2471f36aaff3..7c3da4e3e737 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h @@ -288,17 +288,23 @@ struct drm_i915_gem_object { I915_SELFTEST_DECLARE(struct list_head st_link); unsigned long flags; -#define I915_BO_ALLOC_CONTIGUOUS BIT(0) -#define I915_BO_ALLOC_VOLATILE BIT(1) -#define I915_BO_ALLOC_CPU_CLEAR BIT(2) -#define I915_BO_ALLOC_USER BIT(3) +#define I915_BO_ALLOC_CONTIGUOUS BIT(0) +#define I915_BO_ALLOC_VOLATILE BIT(1) +#define I915_BO_ALLOC_CPU_CLEAR BIT(2) +#define I915_BO_ALLOC_USER BIT(3) +/* Object is allowed to lose its contents on suspend / resume, even if pinned */ +#define I915_BO_ALLOC_PM_VOLATILE BIT(4) +/* Object needs to be restored early using memcpy during resume */ +#define I915_BO_ALLOC_PM_EARLY BIT(5) #define I915_BO_ALLOC_FLAGS (I915_BO_ALLOC_CONTIGUOUS | \ I915_BO_ALLOC_VOLATILE | \ I915_BO_ALLOC_CPU_CLEAR | \ - I915_BO_ALLOC_USER) -#define I915_BO_READONLY BIT(4) -#define I915_TILING_QUIRK_BIT 5 /* unknown swizzling; do not release! */ - + I915_BO_ALLOC_USER | \ + I915_BO_ALLOC_PM_VOLATILE | \ + I915_BO_ALLOC_PM_EARLY) +#define I915_BO_READONLY BIT(6) +#define I915_TILING_QUIRK_BIT 7 /* unknown swizzling; do not release! */ +#define I915_BO_PROTECTED BIT(8) /** * @mem_flags - Mutable placement-related flags * @@ -534,9 +540,17 @@ struct drm_i915_gem_object { struct { struct sg_table *cached_io_st; struct i915_gem_object_page_iter get_io_page; + struct drm_i915_gem_object *backup; bool created:1; } ttm; + /* + * Record which PXP key instance this object was created against (if + * any), so we can use it to determine if the encryption is valid by + * comparing against the current key instance. + */ + u32 pxp_key_instance; + /** Record of address bit 17 of each page at last unbind. */ unsigned long *bit_17; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c index 8b9d7d14c4bd..726b40e1fbb0 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c @@ -5,6 +5,7 @@ */ #include "gem/i915_gem_pm.h" +#include "gem/i915_gem_ttm_pm.h" #include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" #include "gt/intel_gt_requests.h" @@ -39,6 +40,88 @@ void i915_gem_suspend(struct drm_i915_private *i915) i915_gem_drain_freed_objects(i915); } +static int lmem_restore(struct drm_i915_private *i915, u32 flags) +{ + struct intel_memory_region *mr; + int ret = 0, id; + + for_each_memory_region(mr, i915, id) { + if (mr->type == INTEL_MEMORY_LOCAL) { + ret = i915_ttm_restore_region(mr, flags); + if (ret) + break; + } + } + + return ret; +} + +static int lmem_suspend(struct drm_i915_private *i915, u32 flags) +{ + struct intel_memory_region *mr; + int ret = 0, id; + + for_each_memory_region(mr, i915, id) { + if (mr->type == INTEL_MEMORY_LOCAL) { + ret = i915_ttm_backup_region(mr, flags); + if (ret) + break; + } + } + + return ret; +} + +static void lmem_recover(struct drm_i915_private *i915) +{ + struct intel_memory_region *mr; + int id; + + for_each_memory_region(mr, i915, id) + if (mr->type == INTEL_MEMORY_LOCAL) + i915_ttm_recover_region(mr); +} + +int i915_gem_backup_suspend(struct drm_i915_private *i915) +{ + int ret; + + /* Opportunistically try to evict unpinned objects */ + ret = lmem_suspend(i915, I915_TTM_BACKUP_ALLOW_GPU); + if (ret) + goto out_recover; + + i915_gem_suspend(i915); + + /* + * More objects may have become unpinned as requests were + * retired. Now try to evict again. The gt may be wedged here + * in which case we automatically fall back to memcpy. + * We allow also backing up pinned objects that have not been + * marked for early recover, and that may contain, for example, + * page-tables for the migrate context. + */ + ret = lmem_suspend(i915, I915_TTM_BACKUP_ALLOW_GPU | + I915_TTM_BACKUP_PINNED); + if (ret) + goto out_recover; + + /* + * Remaining objects are backed up using memcpy once we've stopped + * using the migrate context. + */ + ret = lmem_suspend(i915, I915_TTM_BACKUP_PINNED); + if (ret) + goto out_recover; + + return 0; + +out_recover: + lmem_recover(i915); + + return ret; +} + void i915_gem_suspend_late(struct drm_i915_private *i915) { struct drm_i915_gem_object *obj; @@ -128,12 +211,20 @@ int i915_gem_freeze_late(struct drm_i915_private *i915) void i915_gem_resume(struct drm_i915_private *i915) { + int ret; + GEM_TRACE("%s\n", dev_name(i915->drm.dev)); + ret = lmem_restore(i915, 0); + GEM_WARN_ON(ret); + /* * As we didn't flush the kernel context before suspend, we cannot * guarantee that the context image is complete. So let's just reset * it and start again. */ intel_gt_resume(&i915->gt); + + ret = lmem_restore(i915, I915_TTM_BACKUP_ALLOW_GPU); + GEM_WARN_ON(ret); } diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.h b/drivers/gpu/drm/i915/gem/i915_gem_pm.h index c9a66630e92e..bedf1e95941a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_pm.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.h @@ -18,6 +18,7 @@ void i915_gem_idle_work_handler(struct work_struct *work); void i915_gem_suspend(struct drm_i915_private *i915); void i915_gem_suspend_late(struct drm_i915_private *i915); +int i915_gem_backup_suspend(struct drm_i915_private *i915); int i915_gem_freeze(struct drm_i915_private *i915); int i915_gem_freeze_late(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.c b/drivers/gpu/drm/i915/gem/i915_gem_region.c index 1f557b2178ed..a016ccec36f3 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.c @@ -80,3 +80,73 @@ err_object_free: i915_gem_object_free(obj); return ERR_PTR(err); } + +/** + * i915_gem_process_region - Iterate over all objects of a region using ops + * to process and optionally skip objects + * @mr: The memory region + * @apply: ops and private data + * + * This function can be used to iterate over the regions object list, + * checking whether to skip objects, and, if not, lock the objects and + * process them using the supplied ops. Note that this function temporarily + * removes objects from the region list while iterating, so that if run + * concurrently with itself may not iterate over all objects. + * + * Return: 0 if successful, negative error code on failure. + */ +int i915_gem_process_region(struct intel_memory_region *mr, + struct i915_gem_apply_to_region *apply) +{ + const struct i915_gem_apply_to_region_ops *ops = apply->ops; + struct drm_i915_gem_object *obj; + struct list_head still_in_list; + int ret = 0; + + /* + * In the future, a non-NULL apply->ww could mean the caller is + * already in a locking transaction and provides its own context. + */ + GEM_WARN_ON(apply->ww); + + INIT_LIST_HEAD(&still_in_list); + mutex_lock(&mr->objects.lock); + for (;;) { + struct i915_gem_ww_ctx ww; + + obj = list_first_entry_or_null(&mr->objects.list, typeof(*obj), + mm.region_link); + if (!obj) + break; + + list_move_tail(&obj->mm.region_link, &still_in_list); + if (!kref_get_unless_zero(&obj->base.refcount)) + continue; + + /* + * Note: Someone else might be migrating the object at this + * point. The object's region is not stable until we lock + * the object. + */ + mutex_unlock(&mr->objects.lock); + apply->ww = &ww; + for_i915_gem_ww(&ww, ret, apply->interruptible) { + ret = i915_gem_object_lock(obj, apply->ww); + if (ret) + continue; + + if (obj->mm.region == mr) + ret = ops->process_obj(apply, obj); + /* Implicit object unlock */ + } + + i915_gem_object_put(obj); + mutex_lock(&mr->objects.lock); + if (ret) + break; + } + list_splice_tail(&still_in_list, &mr->objects.list); + mutex_unlock(&mr->objects.lock); + + return ret; +} diff --git a/drivers/gpu/drm/i915/gem/i915_gem_region.h b/drivers/gpu/drm/i915/gem/i915_gem_region.h index 1008e580a89a..fcaa12d657d4 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_region.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_region.h @@ -12,6 +12,41 @@ struct intel_memory_region; struct drm_i915_gem_object; struct sg_table; +struct i915_gem_apply_to_region; + +/** + * struct i915_gem_apply_to_region_ops - ops to use when iterating over all + * region objects. + */ +struct i915_gem_apply_to_region_ops { + /** + * process_obj - Process the current object + * @apply: Embed this for private data. + * @obj: The current object. + * + * Note that if this function is part of a ww transaction, and + * if returns -EDEADLK for one of the objects, it may be + * rerun for that same object in the same pass. + */ + int (*process_obj)(struct i915_gem_apply_to_region *apply, + struct drm_i915_gem_object *obj); +}; + +/** + * struct i915_gem_apply_to_region - Argument to the struct + * i915_gem_apply_to_region_ops functions. + * @ops: The ops for the operation. + * @ww: Locking context used for the transaction. + * @interruptible: Whether to perform object locking interruptible. + * + * This structure is intended to be embedded in a private struct if needed + */ +struct i915_gem_apply_to_region { + const struct i915_gem_apply_to_region_ops *ops; + struct i915_gem_ww_ctx *ww; + u32 interruptible:1; +}; + void i915_gem_object_init_memory_region(struct drm_i915_gem_object *obj, struct intel_memory_region *mem); void i915_gem_object_release_memory_region(struct drm_i915_gem_object *obj); @@ -22,4 +57,6 @@ i915_gem_object_create_region(struct intel_memory_region *mem, resource_size_t page_size, unsigned int flags); +int i915_gem_process_region(struct intel_memory_region *mr, + struct i915_gem_apply_to_region *apply); #endif diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c index e382b7f2353b..5ab136ffdeb2 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c @@ -118,7 +118,7 @@ i915_gem_shrink(struct i915_gem_ww_ctx *ww, intel_wakeref_t wakeref = 0; unsigned long count = 0; unsigned long scanned = 0; - int err; + int err = 0; /* CHV + VTD workaround use stop_machine(); need to trylock vm->mutex */ bool trylock_vm = !ww && intel_vm_no_concurrent_access_wa(i915); @@ -242,12 +242,15 @@ skip: list_splice_tail(&still_in_list, phase->list); spin_unlock_irqrestore(&i915->mm.obj_lock, flags); if (err) - return err; + break; } if (shrink & I915_SHRINK_BOUND) intel_runtime_pm_put(&i915->runtime_pm, wakeref); + if (err) + return err; + if (nr_scanned) *nr_scanned += scanned; return count; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 8beef57ba52b..74a1ffd0d7dd 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -10,18 +10,16 @@ #include "intel_memory_region.h" #include "intel_region_ttm.h" +#include "gem/i915_gem_mman.h" #include "gem/i915_gem_object.h" #include "gem/i915_gem_region.h" #include "gem/i915_gem_ttm.h" -#include "gem/i915_gem_mman.h" +#include "gem/i915_gem_ttm_pm.h" -#include "gt/intel_migrate.h" -#include "gt/intel_engine_pm.h" -#define I915_PL_LMEM0 TTM_PL_PRIV -#define I915_PL_SYSTEM TTM_PL_SYSTEM -#define I915_PL_STOLEN TTM_PL_VRAM -#define I915_PL_GGTT TTM_PL_TT +#include "gt/intel_engine_pm.h" +#include "gt/intel_gt.h" +#include "gt/intel_migrate.h" #define I915_TTM_PRIO_PURGE 0 #define I915_TTM_PRIO_NO_PAGES 1 @@ -64,6 +62,20 @@ static struct ttm_placement i915_sys_placement = { .busy_placement = &sys_placement_flags, }; +/** + * i915_ttm_sys_placement - Return the struct ttm_placement to be + * used for an object in system memory. + * + * Rather than making the struct extern, use this + * function. + * + * Return: A pointer to a static variable for sys placement. + */ +struct ttm_placement *i915_ttm_sys_placement(void) +{ + return &i915_sys_placement; +} + static int i915_ttm_err_to_gem(int err) { /* Fastpath */ @@ -356,9 +368,8 @@ static void i915_ttm_delete_mem_notify(struct ttm_buffer_object *bo) struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); if (likely(obj)) { - /* This releases all gem object bindings to the backend. */ + __i915_gem_object_pages_fini(obj); i915_ttm_free_cached_io_st(obj); - __i915_gem_free_object(obj); } } @@ -429,7 +440,9 @@ i915_ttm_resource_get_st(struct drm_i915_gem_object *obj, } static int i915_ttm_accel_move(struct ttm_buffer_object *bo, + bool clear, struct ttm_resource *dst_mem, + struct ttm_tt *dst_ttm, struct sg_table *dst_st) { struct drm_i915_private *i915 = container_of(bo->bdev, typeof(*i915), @@ -439,21 +452,18 @@ static int i915_ttm_accel_move(struct ttm_buffer_object *bo, struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); struct sg_table *src_st; struct i915_request *rq; - struct ttm_tt *ttm = bo->ttm; + struct ttm_tt *src_ttm = bo->ttm; enum i915_cache_level src_level, dst_level; int ret; - if (!i915->gt.migrate.context) + if (!i915->gt.migrate.context || intel_gt_is_wedged(&i915->gt)) return -EINVAL; - dst_level = i915_ttm_cache_level(i915, dst_mem, ttm); - if (!ttm || !ttm_tt_is_populated(ttm)) { + dst_level = i915_ttm_cache_level(i915, dst_mem, dst_ttm); + if (clear) { if (bo->type == ttm_bo_type_kernel) return -EINVAL; - if (ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC)) - return 0; - intel_engine_pm_get(i915->gt.migrate.context->engine); ret = intel_context_migrate_clear(i915->gt.migrate.context, NULL, dst_st->sgl, dst_level, @@ -466,10 +476,10 @@ static int i915_ttm_accel_move(struct ttm_buffer_object *bo, } intel_engine_pm_put(i915->gt.migrate.context->engine); } else { - src_st = src_man->use_tt ? i915_ttm_tt_get_st(ttm) : + src_st = src_man->use_tt ? i915_ttm_tt_get_st(src_ttm) : obj->ttm.cached_io_st; - src_level = i915_ttm_cache_level(i915, bo->resource, ttm); + src_level = i915_ttm_cache_level(i915, bo->resource, src_ttm); intel_engine_pm_get(i915->gt.migrate.context->engine); ret = intel_context_migrate_copy(i915->gt.migrate.context, NULL, src_st->sgl, src_level, @@ -487,6 +497,44 @@ static int i915_ttm_accel_move(struct ttm_buffer_object *bo, return ret; } +static void __i915_ttm_move(struct ttm_buffer_object *bo, bool clear, + struct ttm_resource *dst_mem, + struct ttm_tt *dst_ttm, + struct sg_table *dst_st, + bool allow_accel) +{ + int ret = -EINVAL; + + if (allow_accel) + ret = i915_ttm_accel_move(bo, clear, dst_mem, dst_ttm, dst_st); + if (ret) { + struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); + struct intel_memory_region *dst_reg, *src_reg; + union { + struct ttm_kmap_iter_tt tt; + struct ttm_kmap_iter_iomap io; + } _dst_iter, _src_iter; + struct ttm_kmap_iter *dst_iter, *src_iter; + + dst_reg = i915_ttm_region(bo->bdev, dst_mem->mem_type); + src_reg = i915_ttm_region(bo->bdev, bo->resource->mem_type); + GEM_BUG_ON(!dst_reg || !src_reg); + + dst_iter = !cpu_maps_iomem(dst_mem) ? + ttm_kmap_iter_tt_init(&_dst_iter.tt, dst_ttm) : + ttm_kmap_iter_iomap_init(&_dst_iter.io, &dst_reg->iomap, + dst_st, dst_reg->region.start); + + src_iter = !cpu_maps_iomem(bo->resource) ? + ttm_kmap_iter_tt_init(&_src_iter.tt, bo->ttm) : + ttm_kmap_iter_iomap_init(&_src_iter.io, &src_reg->iomap, + obj->ttm.cached_io_st, + src_reg->region.start); + + ttm_move_memcpy(clear, dst_mem->num_pages, dst_iter, src_iter); + } +} + static int i915_ttm_move(struct ttm_buffer_object *bo, bool evict, struct ttm_operation_ctx *ctx, struct ttm_resource *dst_mem, @@ -495,19 +543,11 @@ static int i915_ttm_move(struct ttm_buffer_object *bo, bool evict, struct drm_i915_gem_object *obj = i915_ttm_to_gem(bo); struct ttm_resource_manager *dst_man = ttm_manager_type(bo->bdev, dst_mem->mem_type); - struct intel_memory_region *dst_reg, *src_reg; - union { - struct ttm_kmap_iter_tt tt; - struct ttm_kmap_iter_iomap io; - } _dst_iter, _src_iter; - struct ttm_kmap_iter *dst_iter, *src_iter; + struct ttm_tt *ttm = bo->ttm; struct sg_table *dst_st; + bool clear; int ret; - dst_reg = i915_ttm_region(bo->bdev, dst_mem->mem_type); - src_reg = i915_ttm_region(bo->bdev, bo->resource->mem_type); - GEM_BUG_ON(!dst_reg || !src_reg); - /* Sync for now. We could do the actual copy async. */ ret = ttm_bo_wait_ctx(bo, ctx); if (ret) @@ -524,9 +564,8 @@ static int i915_ttm_move(struct ttm_buffer_object *bo, bool evict, } /* Populate ttm with pages if needed. Typically system memory. */ - if (bo->ttm && (dst_man->use_tt || - (bo->ttm->page_flags & TTM_TT_FLAG_SWAPPED))) { - ret = ttm_tt_populate(bo->bdev, bo->ttm, ctx); + if (ttm && (dst_man->use_tt || (ttm->page_flags & TTM_TT_FLAG_SWAPPED))) { + ret = ttm_tt_populate(bo->bdev, ttm, ctx); if (ret) return ret; } @@ -535,23 +574,10 @@ static int i915_ttm_move(struct ttm_buffer_object *bo, bool evict, if (IS_ERR(dst_st)) return PTR_ERR(dst_st); - ret = i915_ttm_accel_move(bo, dst_mem, dst_st); - if (ret) { - /* If we start mapping GGTT, we can no longer use man::use_tt here. */ - dst_iter = !cpu_maps_iomem(dst_mem) ? - ttm_kmap_iter_tt_init(&_dst_iter.tt, bo->ttm) : - ttm_kmap_iter_iomap_init(&_dst_iter.io, &dst_reg->iomap, - dst_st, dst_reg->region.start); + clear = !cpu_maps_iomem(bo->resource) && (!ttm || !ttm_tt_is_populated(ttm)); + if (!(clear && ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC))) + __i915_ttm_move(bo, clear, dst_mem, bo->ttm, dst_st, true); - src_iter = !cpu_maps_iomem(bo->resource) ? - ttm_kmap_iter_tt_init(&_src_iter.tt, bo->ttm) : - ttm_kmap_iter_iomap_init(&_src_iter.io, &src_reg->iomap, - obj->ttm.cached_io_st, - src_reg->region.start); - - ttm_move_memcpy(bo, dst_mem->num_pages, dst_iter, src_iter); - } - /* Below dst_mem becomes bo->resource. */ ttm_bo_move_sync_cleanup(bo, dst_mem); i915_ttm_adjust_domains_after_move(obj); i915_ttm_free_cached_io_st(obj); @@ -789,12 +815,9 @@ static void i915_ttm_adjust_lru(struct drm_i915_gem_object *obj) */ static void i915_ttm_delayed_free(struct drm_i915_gem_object *obj) { - if (obj->ttm.created) { - ttm_bo_put(i915_gem_to_ttm(obj)); - } else { - __i915_gem_free_object(obj); - call_rcu(&obj->rcu, __i915_gem_free_object_rcu); - } + GEM_BUG_ON(!obj->ttm.created); + + ttm_bo_put(i915_gem_to_ttm(obj)); } static vm_fault_t vm_fault_ttm(struct vm_fault *vmf) @@ -876,8 +899,17 @@ void i915_ttm_bo_destroy(struct ttm_buffer_object *bo) i915_gem_object_release_memory_region(obj); mutex_destroy(&obj->ttm.get_io_page.lock); - if (obj->ttm.created) + + if (obj->ttm.created) { + i915_ttm_backup_free(obj); + + /* This releases all gem object bindings to the backend. */ + __i915_gem_free_object(obj); + call_rcu(&obj->rcu, __i915_gem_free_object_rcu); + } else { + __i915_gem_object_fini(obj); + } } /** @@ -906,7 +938,11 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, drm_gem_private_object_init(&i915->drm, &obj->base, size); i915_gem_object_init(obj, &i915_gem_ttm_obj_ops, &lock_class, flags); - i915_gem_object_init_memory_region(obj, mem); + + /* Don't put on a region list until we're either locked or fully initialized. */ + obj->mm.region = intel_memory_region_get(mem); + INIT_LIST_HEAD(&obj->mm.region_link); + i915_gem_object_make_unshrinkable(obj); INIT_RADIX_TREE(&obj->ttm.get_io_page.radix, GFP_KERNEL | __GFP_NOWARN); mutex_init(&obj->ttm.get_io_page.lock); @@ -933,6 +969,8 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, return i915_ttm_err_to_gem(ret); obj->ttm.created = true; + i915_gem_object_release_memory_region(obj); + i915_gem_object_init_memory_region(obj, mem); i915_ttm_adjust_domains_after_move(obj); i915_ttm_adjust_gem_after_move(obj); i915_gem_object_unlock(obj); @@ -961,3 +999,50 @@ i915_gem_ttm_system_setup(struct drm_i915_private *i915, intel_memory_region_set_name(mr, "system-ttm"); return mr; } + +/** + * i915_gem_obj_copy_ttm - Copy the contents of one ttm-based gem object to + * another + * @dst: The destination object + * @src: The source object + * @allow_accel: Allow using the blitter. Otherwise TTM memcpy is used. + * @intr: Whether to perform waits interruptible: + * + * Note: The caller is responsible for assuring that the underlying + * TTM objects are populated if needed and locked. + * + * Return: Zero on success. Negative error code on error. If @intr == true, + * then it may return -ERESTARTSYS or -EINTR. + */ +int i915_gem_obj_copy_ttm(struct drm_i915_gem_object *dst, + struct drm_i915_gem_object *src, + bool allow_accel, bool intr) +{ + struct ttm_buffer_object *dst_bo = i915_gem_to_ttm(dst); + struct ttm_buffer_object *src_bo = i915_gem_to_ttm(src); + struct ttm_operation_ctx ctx = { + .interruptible = intr, + }; + struct sg_table *dst_st; + int ret; + + assert_object_held(dst); + assert_object_held(src); + + /* + * Sync for now. This will change with async moves. + */ + ret = ttm_bo_wait_ctx(dst_bo, &ctx); + if (!ret) + ret = ttm_bo_wait_ctx(src_bo, &ctx); + if (ret) + return ret; + + dst_st = gpu_binds_iomem(dst_bo->resource) ? + dst->ttm.cached_io_st : i915_ttm_tt_get_st(dst_bo->ttm); + + __i915_ttm_move(src_bo, false, dst_bo->resource, dst_bo->ttm, + dst_st, allow_accel); + + return 0; +} diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.h b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h index 40927f67b6d9..0b7291dd897c 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h @@ -46,4 +46,18 @@ int __i915_gem_ttm_object_init(struct intel_memory_region *mem, resource_size_t size, resource_size_t page_size, unsigned int flags); + +int i915_gem_obj_copy_ttm(struct drm_i915_gem_object *dst, + struct drm_i915_gem_object *src, + bool allow_accel, bool intr); + +/* Internal I915 TTM declarations and definitions below. */ + +#define I915_PL_LMEM0 TTM_PL_PRIV +#define I915_PL_SYSTEM TTM_PL_SYSTEM +#define I915_PL_STOLEN TTM_PL_VRAM +#define I915_PL_GGTT TTM_PL_TT + +struct ttm_placement *i915_ttm_sys_placement(void); + #endif diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c new file mode 100644 index 000000000000..3b6d14b5c604 --- /dev/null +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c @@ -0,0 +1,206 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2021 Intel Corporation + */ + +#include <drm/ttm/ttm_placement.h> +#include <drm/ttm/ttm_tt.h> + +#include "i915_drv.h" +#include "intel_memory_region.h" +#include "intel_region_ttm.h" + +#include "gem/i915_gem_region.h" +#include "gem/i915_gem_ttm.h" +#include "gem/i915_gem_ttm_pm.h" + +/** + * i915_ttm_backup_free - Free any backup attached to this object + * @obj: The object whose backup is to be freed. + */ +void i915_ttm_backup_free(struct drm_i915_gem_object *obj) +{ + if (obj->ttm.backup) { + i915_gem_object_put(obj->ttm.backup); + obj->ttm.backup = NULL; + } +} + +/** + * struct i915_gem_ttm_pm_apply - Apply-to-region subclass for restore + * @base: The i915_gem_apply_to_region we derive from. + * @allow_gpu: Whether using the gpu blitter is allowed. + * @backup_pinned: On backup, backup also pinned objects. + */ +struct i915_gem_ttm_pm_apply { + struct i915_gem_apply_to_region base; + bool allow_gpu : 1; + bool backup_pinned : 1; +}; + +static int i915_ttm_backup(struct i915_gem_apply_to_region *apply, + struct drm_i915_gem_object *obj) +{ + struct i915_gem_ttm_pm_apply *pm_apply = + container_of(apply, typeof(*pm_apply), base); + struct ttm_buffer_object *bo = i915_gem_to_ttm(obj); + struct ttm_buffer_object *backup_bo; + struct drm_i915_private *i915 = + container_of(bo->bdev, typeof(*i915), bdev); + struct drm_i915_gem_object *backup; + struct ttm_operation_ctx ctx = {}; + int err = 0; + + if (bo->resource->mem_type == I915_PL_SYSTEM || obj->ttm.backup) + return 0; + + if (pm_apply->allow_gpu && i915_gem_object_evictable(obj)) + return ttm_bo_validate(bo, i915_ttm_sys_placement(), &ctx); + + if (!pm_apply->backup_pinned || + (pm_apply->allow_gpu && (obj->flags & I915_BO_ALLOC_PM_EARLY))) + return 0; + + if (obj->flags & I915_BO_ALLOC_PM_VOLATILE) + return 0; + + backup = i915_gem_object_create_shmem(i915, obj->base.size); + if (IS_ERR(backup)) + return PTR_ERR(backup); + + err = i915_gem_object_lock(backup, apply->ww); + if (err) + goto out_no_lock; + + backup_bo = i915_gem_to_ttm(backup); + err = ttm_tt_populate(backup_bo->bdev, backup_bo->ttm, &ctx); + if (err) + goto out_no_populate; + + err = i915_gem_obj_copy_ttm(backup, obj, pm_apply->allow_gpu, false); + GEM_WARN_ON(err); + + obj->ttm.backup = backup; + return 0; + +out_no_populate: + i915_gem_ww_unlock_single(backup); +out_no_lock: + i915_gem_object_put(backup); + + return err; +} + +static int i915_ttm_recover(struct i915_gem_apply_to_region *apply, + struct drm_i915_gem_object *obj) +{ + i915_ttm_backup_free(obj); + return 0; +} + +/** + * i915_ttm_recover_region - Free the backup of all objects of a region + * @mr: The memory region + * + * Checks all objects of a region if there is backup attached and if so + * frees that backup. Typically this is called to recover after a partially + * performed backup. + */ +void i915_ttm_recover_region(struct intel_memory_region *mr) +{ + static const struct i915_gem_apply_to_region_ops recover_ops = { + .process_obj = i915_ttm_recover, + }; + struct i915_gem_apply_to_region apply = {.ops = &recover_ops}; + int ret; + + ret = i915_gem_process_region(mr, &apply); + GEM_WARN_ON(ret); +} + +/** + * i915_ttm_backup_region - Back up all objects of a region to smem. + * @mr: The memory region + * @allow_gpu: Whether to allow the gpu blitter for this backup. + * @backup_pinned: Backup also pinned objects. + * + * Loops over all objects of a region and either evicts them if they are + * evictable or backs them up using a backup object if they are pinned. + * + * Return: Zero on success. Negative error code on error. + */ +int i915_ttm_backup_region(struct intel_memory_region *mr, u32 flags) +{ + static const struct i915_gem_apply_to_region_ops backup_ops = { + .process_obj = i915_ttm_backup, + }; + struct i915_gem_ttm_pm_apply pm_apply = { + .base = {.ops = &backup_ops}, + .allow_gpu = flags & I915_TTM_BACKUP_ALLOW_GPU, + .backup_pinned = flags & I915_TTM_BACKUP_PINNED, + }; + + return i915_gem_process_region(mr, &pm_apply.base); +} + +static int i915_ttm_restore(struct i915_gem_apply_to_region *apply, + struct drm_i915_gem_object *obj) +{ + struct i915_gem_ttm_pm_apply *pm_apply = + container_of(apply, typeof(*pm_apply), base); + struct drm_i915_gem_object *backup = obj->ttm.backup; + struct ttm_buffer_object *backup_bo = i915_gem_to_ttm(backup); + struct ttm_operation_ctx ctx = {}; + int err; + + if (!backup) + return 0; + + if (!pm_apply->allow_gpu && !(obj->flags & I915_BO_ALLOC_PM_EARLY)) + return 0; + + err = i915_gem_object_lock(backup, apply->ww); + if (err) + return err; + + /* Content may have been swapped. */ + err = ttm_tt_populate(backup_bo->bdev, backup_bo->ttm, &ctx); + if (!err) { + err = i915_gem_obj_copy_ttm(obj, backup, pm_apply->allow_gpu, + false); + GEM_WARN_ON(err); + + obj->ttm.backup = NULL; + err = 0; + } + + i915_gem_ww_unlock_single(backup); + + if (!err) + i915_gem_object_put(backup); + + return err; +} + +/** + * i915_ttm_restore_region - Restore backed-up objects of a region from smem. + * @mr: The memory region + * @allow_gpu: Whether to allow the gpu blitter to recover. + * + * Loops over all objects of a region and if they are backed-up, restores + * them from smem. + * + * Return: Zero on success. Negative error code on error. + */ +int i915_ttm_restore_region(struct intel_memory_region *mr, u32 flags) +{ + static const struct i915_gem_apply_to_region_ops restore_ops = { + .process_obj = i915_ttm_restore, + }; + struct i915_gem_ttm_pm_apply pm_apply = { + .base = {.ops = &restore_ops}, + .allow_gpu = flags & I915_TTM_BACKUP_ALLOW_GPU, + }; + + return i915_gem_process_region(mr, &pm_apply.base); +} diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h new file mode 100644 index 000000000000..25ed67a31571 --- /dev/null +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ + +#ifndef _I915_GEM_TTM_PM_H_ +#define _I915_GEM_TTM_PM_H_ + +#include <linux/types.h> + +struct intel_memory_region; +struct drm_i915_gem_object; + +#define I915_TTM_BACKUP_ALLOW_GPU BIT(0) +#define I915_TTM_BACKUP_PINNED BIT(1) + +int i915_ttm_backup_region(struct intel_memory_region *mr, u32 flags); + +void i915_ttm_recover_region(struct intel_memory_region *mr); + +int i915_ttm_restore_region(struct intel_memory_region *mr, u32 flags); + +/* Internal I915 TTM functions below. */ +void i915_ttm_backup_free(struct drm_i915_gem_object *obj); + +#endif diff --git a/drivers/gpu/drm/i915/gem/i915_gemfs.c b/drivers/gpu/drm/i915/gem/i915_gemfs.c index 5e6e8c91ab38..dbdbdc344d87 100644 --- a/drivers/gpu/drm/i915/gem/i915_gemfs.c +++ b/drivers/gpu/drm/i915/gem/i915_gemfs.c @@ -6,7 +6,6 @@ #include <linux/fs.h> #include <linux/mount.h> -#include <linux/pagemap.h> #include "i915_drv.h" #include "i915_gemfs.h" @@ -15,6 +14,7 @@ int i915_gemfs_init(struct drm_i915_private *i915) { struct file_system_type *type; struct vfsmount *gemfs; + char *opts; type = get_fs_type("tmpfs"); if (!type) @@ -26,10 +26,26 @@ int i915_gemfs_init(struct drm_i915_private *i915) * * One example, although it is probably better with a per-file * control, is selecting huge page allocations ("huge=within_size"). - * Currently unused due to bandwidth issues (slow reads) on Broadwell+. + * However, we only do so to offset the overhead of iommu lookups + * due to bandwidth issues (slow reads) on Broadwell+. */ - gemfs = kern_mount(type); + opts = NULL; + if (intel_vtd_active()) { + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) { + static char huge_opt[] = "huge=within_size"; /* r/w */ + + opts = huge_opt; + drm_info(&i915->drm, + "Transparent Hugepage mode '%s'\n", + opts); + } else { + drm_notice(&i915->drm, + "Transparent Hugepage support is recommended for optimal performance when IOMMU is enabled!\n"); + } + } + + gemfs = vfs_kern_mount(type, SB_KERNMOUNT, type->name, opts); if (IS_ERR(gemfs)) return PTR_ERR(gemfs); diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c index a094f3ce1a90..41d0680f3bd7 100644 --- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c +++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c @@ -1456,7 +1456,7 @@ static int igt_tmpfs_fallback(void *arg) struct i915_gem_context *ctx = arg; struct drm_i915_private *i915 = ctx->i915; struct vfsmount *gemfs = i915->mm.gemfs; - struct i915_address_space *vm = i915_gem_context_get_vm_rcu(ctx); + struct i915_address_space *vm = i915_gem_context_get_eb_vm(ctx); struct drm_i915_gem_object *obj; struct i915_vma *vma; u32 *vaddr; @@ -1512,13 +1512,14 @@ static int igt_shrink_thp(void *arg) { struct i915_gem_context *ctx = arg; struct drm_i915_private *i915 = ctx->i915; - struct i915_address_space *vm = i915_gem_context_get_vm_rcu(ctx); + struct i915_address_space *vm = i915_gem_context_get_eb_vm(ctx); struct drm_i915_gem_object *obj; struct i915_gem_engines_iter it; struct intel_context *ce; struct i915_vma *vma; unsigned int flags = PIN_USER; unsigned int n; + bool should_swap; int err = 0; /* @@ -1567,23 +1568,39 @@ static int igt_shrink_thp(void *arg) break; } i915_gem_context_unlock_engines(ctx); + /* + * Nuke everything *before* we unpin the pages so we can be reasonably + * sure that when later checking get_nr_swap_pages() that some random + * leftover object doesn't steal the remaining swap space. + */ + i915_gem_shrink(NULL, i915, -1UL, NULL, + I915_SHRINK_BOUND | + I915_SHRINK_UNBOUND | + I915_SHRINK_ACTIVE); i915_vma_unpin(vma); if (err) goto out_put; /* - * Now that the pages are *unpinned* shrink-all should invoke - * shmem to truncate our pages. + * Now that the pages are *unpinned* shrinking should invoke + * shmem to truncate our pages, if we have available swap. */ - i915_gem_shrink_all(i915); - if (i915_gem_object_has_pages(obj)) { - pr_err("shrink-all didn't truncate the pages\n"); + should_swap = get_nr_swap_pages() > 0; + i915_gem_shrink(NULL, i915, -1UL, NULL, + I915_SHRINK_BOUND | + I915_SHRINK_UNBOUND | + I915_SHRINK_ACTIVE | + I915_SHRINK_WRITEBACK); + if (should_swap == i915_gem_object_has_pages(obj)) { + pr_err("unexpected pages mismatch, should_swap=%s\n", + yesno(should_swap)); err = -EINVAL; goto out_put; } - if (obj->mm.page_sizes.sg || obj->mm.page_sizes.phys) { - pr_err("residual page-size bits left\n"); + if (should_swap == (obj->mm.page_sizes.sg || obj->mm.page_sizes.phys)) { + pr_err("unexpected residual page-size bits, should_swap=%s\n", + yesno(should_swap)); err = -EINVAL; goto out_put; } @@ -1629,7 +1646,7 @@ int i915_gem_huge_page_mock_selftests(void) mkwrite_device_info(dev_priv)->ppgtt_type = INTEL_PPGTT_FULL; mkwrite_device_info(dev_priv)->ppgtt_size = 48; - ppgtt = i915_ppgtt_create(&dev_priv->gt); + ppgtt = i915_ppgtt_create(&dev_priv->gt, 0); if (IS_ERR(ppgtt)) { err = PTR_ERR(ppgtt); goto out_unlock; @@ -1688,11 +1705,9 @@ int i915_gem_huge_page_live_selftests(struct drm_i915_private *i915) goto out_file; } - mutex_lock(&ctx->mutex); - vm = i915_gem_context_vm(ctx); + vm = ctx->vm; if (vm) WRITE_ONCE(vm->scrub_64K, true); - mutex_unlock(&ctx->mutex); err = i915_subtests(tests, ctx); diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c index 8eb5050f8cb3..b32f7fed2d9c 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c @@ -27,12 +27,6 @@ #define DW_PER_PAGE (PAGE_SIZE / sizeof(u32)) -static inline struct i915_address_space *ctx_vm(struct i915_gem_context *ctx) -{ - /* single threaded, private ctx */ - return rcu_dereference_protected(ctx->vm, true); -} - static int live_nop_switch(void *arg) { const unsigned int nctx = 1024; @@ -94,7 +88,7 @@ static int live_nop_switch(void *arg) rq = i915_request_get(this); i915_request_add(this); } - if (i915_request_wait(rq, 0, HZ / 5) < 0) { + if (i915_request_wait(rq, 0, HZ) < 0) { pr_err("Failed to populated %d contexts\n", nctx); intel_gt_set_wedged(&i915->gt); i915_request_put(rq); @@ -704,7 +698,7 @@ static int igt_ctx_exec(void *arg) pr_err("Failed to fill dword %lu [%lu/%lu] with gpu (%s) [full-ppgtt? %s], err=%d\n", ndwords, dw, max_dwords(obj), engine->name, - yesno(!!rcu_access_pointer(ctx->vm)), + yesno(i915_gem_context_has_full_ppgtt(ctx)), err); intel_context_put(ce); kernel_context_close(ctx); @@ -813,7 +807,7 @@ static int igt_shared_ctx_exec(void *arg) struct i915_gem_context *ctx; struct intel_context *ce; - ctx = kernel_context(i915, ctx_vm(parent)); + ctx = kernel_context(i915, parent->vm); if (IS_ERR(ctx)) { err = PTR_ERR(ctx); goto out_test; @@ -823,7 +817,7 @@ static int igt_shared_ctx_exec(void *arg) GEM_BUG_ON(IS_ERR(ce)); if (!obj) { - obj = create_test_object(ctx_vm(parent), + obj = create_test_object(parent->vm, file, &objects); if (IS_ERR(obj)) { err = PTR_ERR(obj); @@ -838,7 +832,7 @@ static int igt_shared_ctx_exec(void *arg) pr_err("Failed to fill dword %lu [%lu/%lu] with gpu (%s) [full-ppgtt? %s], err=%d\n", ndwords, dw, max_dwords(obj), engine->name, - yesno(!!rcu_access_pointer(ctx->vm)), + yesno(i915_gem_context_has_full_ppgtt(ctx)), err); intel_context_put(ce); kernel_context_close(ctx); @@ -1380,7 +1374,7 @@ static int igt_ctx_readonly(void *arg) goto out_file; } - vm = ctx_vm(ctx) ?: &i915->ggtt.alias->vm; + vm = ctx->vm ?: &i915->ggtt.alias->vm; if (!vm || !vm->has_read_only) { err = 0; goto out_file; @@ -1417,7 +1411,7 @@ static int igt_ctx_readonly(void *arg) pr_err("Failed to fill dword %lu [%lu/%lu] with gpu (%s) [full-ppgtt? %s], err=%d\n", ndwords, dw, max_dwords(obj), ce->engine->name, - yesno(!!ctx_vm(ctx)), + yesno(i915_gem_context_has_full_ppgtt(ctx)), err); i915_gem_context_unlock_engines(ctx); goto out_file; @@ -1499,7 +1493,7 @@ static int write_to_scratch(struct i915_gem_context *ctx, GEM_BUG_ON(offset < I915_GTT_PAGE_SIZE); - err = check_scratch(ctx_vm(ctx), offset); + err = check_scratch(ctx->vm, offset); if (err) return err; @@ -1528,7 +1522,7 @@ static int write_to_scratch(struct i915_gem_context *ctx, intel_gt_chipset_flush(engine->gt); - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); vma = i915_vma_instance(obj, vm, NULL); if (IS_ERR(vma)) { err = PTR_ERR(vma); @@ -1596,7 +1590,7 @@ static int read_from_scratch(struct i915_gem_context *ctx, GEM_BUG_ON(offset < I915_GTT_PAGE_SIZE); - err = check_scratch(ctx_vm(ctx), offset); + err = check_scratch(ctx->vm, offset); if (err) return err; @@ -1607,7 +1601,7 @@ static int read_from_scratch(struct i915_gem_context *ctx, if (GRAPHICS_VER(i915) >= 8) { const u32 GPR0 = engine->mmio_base + 0x600; - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); vma = i915_vma_instance(obj, vm, NULL); if (IS_ERR(vma)) { err = PTR_ERR(vma); @@ -1739,7 +1733,7 @@ static int check_scratch_page(struct i915_gem_context *ctx, u32 *out) u32 *vaddr; int err = 0; - vm = ctx_vm(ctx); + vm = ctx->vm; if (!vm) return -ENODEV; @@ -1801,7 +1795,7 @@ static int igt_vm_isolation(void *arg) } /* We can only test vm isolation, if the vm are distinct */ - if (ctx_vm(ctx_a) == ctx_vm(ctx_b)) + if (ctx_a->vm == ctx_b->vm) goto out_file; /* Read the initial state of the scratch page */ @@ -1813,8 +1807,8 @@ static int igt_vm_isolation(void *arg) if (err) goto out_file; - vm_total = ctx_vm(ctx_a)->total; - GEM_BUG_ON(ctx_vm(ctx_b)->total != vm_total); + vm_total = ctx_a->vm->total; + GEM_BUG_ON(ctx_b->vm->total != vm_total); count = 0; num_engines = 0; diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c deleted file mode 100644 index 16162fc2782d..000000000000 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c +++ /dev/null @@ -1,190 +0,0 @@ -// SPDX-License-Identifier: MIT -/* - * Copyright © 2020 Intel Corporation - */ - -#include "i915_selftest.h" - -#include "gt/intel_engine_pm.h" -#include "selftests/igt_flush_test.h" - -static u64 read_reloc(const u32 *map, int x, const u64 mask) -{ - u64 reloc; - - memcpy(&reloc, &map[x], sizeof(reloc)); - return reloc & mask; -} - -static int __igt_gpu_reloc(struct i915_execbuffer *eb, - struct drm_i915_gem_object *obj) -{ - const unsigned int offsets[] = { 8, 3, 0 }; - const u64 mask = - GENMASK_ULL(eb->reloc_cache.use_64bit_reloc ? 63 : 31, 0); - const u32 *map = page_mask_bits(obj->mm.mapping); - struct i915_request *rq; - struct i915_vma *vma; - int err; - int i; - - vma = i915_vma_instance(obj, eb->context->vm, NULL); - if (IS_ERR(vma)) - return PTR_ERR(vma); - - err = i915_gem_object_lock(obj, &eb->ww); - if (err) - return err; - - err = i915_vma_pin_ww(vma, &eb->ww, 0, 0, PIN_USER | PIN_HIGH); - if (err) - return err; - - /* 8-Byte aligned */ - err = __reloc_entry_gpu(eb, vma, offsets[0] * sizeof(u32), 0); - if (err <= 0) - goto reloc_err; - - /* !8-Byte aligned */ - err = __reloc_entry_gpu(eb, vma, offsets[1] * sizeof(u32), 1); - if (err <= 0) - goto reloc_err; - - /* Skip to the end of the cmd page */ - i = PAGE_SIZE / sizeof(u32) - 1; - i -= eb->reloc_cache.rq_size; - memset32(eb->reloc_cache.rq_cmd + eb->reloc_cache.rq_size, - MI_NOOP, i); - eb->reloc_cache.rq_size += i; - - /* Force next batch */ - err = __reloc_entry_gpu(eb, vma, offsets[2] * sizeof(u32), 2); - if (err <= 0) - goto reloc_err; - - GEM_BUG_ON(!eb->reloc_cache.rq); - rq = i915_request_get(eb->reloc_cache.rq); - reloc_gpu_flush(eb, &eb->reloc_cache); - GEM_BUG_ON(eb->reloc_cache.rq); - - err = i915_gem_object_wait(obj, I915_WAIT_INTERRUPTIBLE, HZ / 2); - if (err) { - intel_gt_set_wedged(eb->engine->gt); - goto put_rq; - } - - if (!i915_request_completed(rq)) { - pr_err("%s: did not wait for relocations!\n", eb->engine->name); - err = -EINVAL; - goto put_rq; - } - - for (i = 0; i < ARRAY_SIZE(offsets); i++) { - u64 reloc = read_reloc(map, offsets[i], mask); - - if (reloc != i) { - pr_err("%s[%d]: map[%d] %llx != %x\n", - eb->engine->name, i, offsets[i], reloc, i); - err = -EINVAL; - } - } - if (err) - igt_hexdump(map, 4096); - -put_rq: - i915_request_put(rq); -unpin_vma: - i915_vma_unpin(vma); - return err; - -reloc_err: - if (!err) - err = -EIO; - goto unpin_vma; -} - -static int igt_gpu_reloc(void *arg) -{ - struct i915_execbuffer eb; - struct drm_i915_gem_object *scratch; - int err = 0; - u32 *map; - - eb.i915 = arg; - - scratch = i915_gem_object_create_internal(eb.i915, 4096); - if (IS_ERR(scratch)) - return PTR_ERR(scratch); - - map = i915_gem_object_pin_map_unlocked(scratch, I915_MAP_WC); - if (IS_ERR(map)) { - err = PTR_ERR(map); - goto err_scratch; - } - - intel_gt_pm_get(&eb.i915->gt); - - for_each_uabi_engine(eb.engine, eb.i915) { - if (intel_engine_requires_cmd_parser(eb.engine) || - intel_engine_using_cmd_parser(eb.engine)) - continue; - - reloc_cache_init(&eb.reloc_cache, eb.i915); - memset(map, POISON_INUSE, 4096); - - intel_engine_pm_get(eb.engine); - eb.context = intel_context_create(eb.engine); - if (IS_ERR(eb.context)) { - err = PTR_ERR(eb.context); - goto err_pm; - } - eb.reloc_pool = NULL; - eb.reloc_context = NULL; - - i915_gem_ww_ctx_init(&eb.ww, false); -retry: - err = intel_context_pin_ww(eb.context, &eb.ww); - if (!err) { - err = __igt_gpu_reloc(&eb, scratch); - - intel_context_unpin(eb.context); - } - if (err == -EDEADLK) { - err = i915_gem_ww_ctx_backoff(&eb.ww); - if (!err) - goto retry; - } - i915_gem_ww_ctx_fini(&eb.ww); - - if (eb.reloc_pool) - intel_gt_buffer_pool_put(eb.reloc_pool); - if (eb.reloc_context) - intel_context_put(eb.reloc_context); - - intel_context_put(eb.context); -err_pm: - intel_engine_pm_put(eb.engine); - if (err) - break; - } - - if (igt_flush_test(eb.i915)) - err = -EIO; - - intel_gt_pm_put(&eb.i915->gt); -err_scratch: - i915_gem_object_put(scratch); - return err; -} - -int i915_gem_execbuffer_live_selftests(struct drm_i915_private *i915) -{ - static const struct i915_subtest tests[] = { - SUBTEST(igt_gpu_reloc), - }; - - if (intel_gt_is_wedged(&i915->gt)) - return 0; - - return i915_live_subtests(tests, i915); -} diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c index a2c34e5a1c54..6d30cdfa80f3 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c @@ -903,7 +903,9 @@ static int __igt_mmap(struct drm_i915_private *i915, pr_debug("igt_mmap(%s, %d) @ %lx\n", obj->mm.region->name, type, addr); + mmap_read_lock(current->mm); area = vma_lookup(current->mm, addr); + mmap_read_unlock(current->mm); if (!area) { pr_err("%s: Did not create a vm_area_struct for the mmap\n", obj->mm.region->name); diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c index fee070df1c97..c0a8ef368044 100644 --- a/drivers/gpu/drm/i915/gem/selftests/mock_context.c +++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c @@ -23,6 +23,7 @@ mock_context(struct drm_i915_private *i915, kref_init(&ctx->ref); INIT_LIST_HEAD(&ctx->link); ctx->i915 = i915; + INIT_WORK(&ctx->release_work, i915_gem_context_release_work); mutex_init(&ctx->mutex); @@ -87,7 +88,7 @@ live_context(struct drm_i915_private *i915, struct file *file) return ERR_CAST(pc); ctx = i915_gem_create_context(i915, pc); - proto_context_close(pc); + proto_context_close(i915, pc); if (IS_ERR(ctx)) return ctx; @@ -162,7 +163,7 @@ kernel_context(struct drm_i915_private *i915, } ctx = i915_gem_create_context(i915, pc); - proto_context_close(pc); + proto_context_close(i915, pc); if (IS_ERR(ctx)) return ctx; diff --git a/drivers/gpu/drm/i915/gt/debugfs_engines.h b/drivers/gpu/drm/i915/gt/debugfs_engines.h deleted file mode 100644 index f69257eaa1cc..000000000000 --- a/drivers/gpu/drm/i915/gt/debugfs_engines.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: MIT */ -/* - * Copyright © 2019 Intel Corporation - */ - -#ifndef DEBUGFS_ENGINES_H -#define DEBUGFS_ENGINES_H - -struct intel_gt; -struct dentry; - -void debugfs_engines_register(struct intel_gt *gt, struct dentry *root); - -#endif /* DEBUGFS_ENGINES_H */ diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt_pm.h b/drivers/gpu/drm/i915/gt/debugfs_gt_pm.h deleted file mode 100644 index 4cf5f5c9da7d..000000000000 --- a/drivers/gpu/drm/i915/gt/debugfs_gt_pm.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: MIT */ -/* - * Copyright © 2019 Intel Corporation - */ - -#ifndef DEBUGFS_GT_PM_H -#define DEBUGFS_GT_PM_H - -struct intel_gt; -struct dentry; - -void debugfs_gt_pm_register(struct intel_gt *gt, struct dentry *root); - -#endif /* DEBUGFS_GT_PM_H */ diff --git a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c index 1aee5e6b1b23..890191f286e3 100644 --- a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c @@ -429,7 +429,7 @@ struct i915_ppgtt *gen6_ppgtt_create(struct intel_gt *gt) mutex_init(&ppgtt->flush); mutex_init(&ppgtt->pin_mutex); - ppgtt_init(&ppgtt->base, gt); + ppgtt_init(&ppgtt->base, gt, 0); ppgtt->base.vm.pd_shift = ilog2(SZ_4K * SZ_4K / sizeof(gen6_pte_t)); ppgtt->base.vm.top = 1; diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c index 6e0e52eeb87a..037a9a6e4889 100644 --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.c @@ -548,6 +548,7 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma, I915_GTT_PAGE_SIZE_2M)))) { vaddr = px_vaddr(pd); vaddr[maybe_64K] |= GEN8_PDE_IPS_64K; + clflush_cache_range(vaddr, PAGE_SIZE); page_size = I915_GTT_PAGE_SIZE_64K; /* @@ -568,6 +569,7 @@ static void gen8_ppgtt_insert_huge(struct i915_vma *vma, for (i = 1; i < index; i += 16) memset64(vaddr + i, encode, 15); + clflush_cache_range(vaddr, PAGE_SIZE); } } @@ -751,7 +753,8 @@ err_pd: * space. * */ -struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt) +struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt, + unsigned long lmem_pt_obj_flags) { struct i915_ppgtt *ppgtt; int err; @@ -760,7 +763,7 @@ struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt) if (!ppgtt) return ERR_PTR(-ENOMEM); - ppgtt_init(ppgtt, gt); + ppgtt_init(ppgtt, gt, lmem_pt_obj_flags); ppgtt->vm.top = i915_vm_is_4lvl(&ppgtt->vm) ? 3 : 2; ppgtt->vm.pd_shift = ilog2(SZ_4K * SZ_4K / sizeof(gen8_pte_t)); diff --git a/drivers/gpu/drm/i915/gt/gen8_ppgtt.h b/drivers/gpu/drm/i915/gt/gen8_ppgtt.h index b9028c2ad3c7..f541d19264b4 100644 --- a/drivers/gpu/drm/i915/gt/gen8_ppgtt.h +++ b/drivers/gpu/drm/i915/gt/gen8_ppgtt.h @@ -12,7 +12,9 @@ struct i915_address_space; struct intel_gt; enum i915_cache_level; -struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt); +struct i915_ppgtt *gen8_ppgtt_create(struct intel_gt *gt, + unsigned long lmem_pt_obj_flags); + u64 gen8_ggtt_pte_encode(dma_addr_t addr, enum i915_cache_level level, u32 flags); diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index 745e84c72c90..e9a0cad5c34d 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -394,19 +394,18 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) spin_lock_init(&ce->guc_state.lock); INIT_LIST_HEAD(&ce->guc_state.fences); + INIT_LIST_HEAD(&ce->guc_state.requests); - spin_lock_init(&ce->guc_active.lock); - INIT_LIST_HEAD(&ce->guc_active.requests); - - ce->guc_id = GUC_INVALID_LRC_ID; - INIT_LIST_HEAD(&ce->guc_id_link); + ce->guc_id.id = GUC_INVALID_LRC_ID; + INIT_LIST_HEAD(&ce->guc_id.link); /* * Initialize fence to be complete as this is expected to be complete * unless there is a pending schedule disable outstanding. */ - i915_sw_fence_init(&ce->guc_blocked, sw_fence_dummy_notify); - i915_sw_fence_commit(&ce->guc_blocked); + i915_sw_fence_init(&ce->guc_state.blocked, + sw_fence_dummy_notify); + i915_sw_fence_commit(&ce->guc_state.blocked); i915_active_init(&ce->active, __intel_context_active, __intel_context_retire, 0); @@ -420,6 +419,7 @@ void intel_context_fini(struct intel_context *ce) mutex_destroy(&ce->pin_mutex); i915_active_fini(&ce->active); + i915_sw_fence_fini(&ce->guc_state.blocked); } void i915_context_module_exit(void) @@ -520,15 +520,15 @@ struct i915_request *intel_context_find_active_request(struct intel_context *ce) GEM_BUG_ON(!intel_engine_uses_guc(ce->engine)); - spin_lock_irqsave(&ce->guc_active.lock, flags); - list_for_each_entry_reverse(rq, &ce->guc_active.requests, + spin_lock_irqsave(&ce->guc_state.lock, flags); + list_for_each_entry_reverse(rq, &ce->guc_state.requests, sched.link) { if (i915_request_completed(rq)) break; active = rq; } - spin_unlock_irqrestore(&ce->guc_active.lock, flags); + spin_unlock_irqrestore(&ce->guc_state.lock, flags); return active; } diff --git a/drivers/gpu/drm/i915/gt/intel_context_types.h b/drivers/gpu/drm/i915/gt/intel_context_types.h index e54351a170e2..12252c411159 100644 --- a/drivers/gpu/drm/i915/gt/intel_context_types.h +++ b/drivers/gpu/drm/i915/gt/intel_context_types.h @@ -112,6 +112,7 @@ struct intel_context { #define CONTEXT_FORCE_SINGLE_SUBMISSION 7 #define CONTEXT_NOPREEMPT 8 #define CONTEXT_LRCA_DIRTY 9 +#define CONTEXT_GUC_INIT 10 struct { u64 timeout_us; @@ -152,52 +153,83 @@ struct intel_context { /** sseu: Control eu/slice partitioning */ struct intel_sseu sseu; + /** + * pinned_contexts_link: List link for the engine's pinned contexts. + * This is only used if this is a perma-pinned kernel context and + * the list is assumed to only be manipulated during driver load + * or unload time so no mutex protection currently. + */ + struct list_head pinned_contexts_link; + u8 wa_bb_page; /* if set, page num reserved for context workarounds */ struct { - /** lock: protects everything in guc_state */ + /** @lock: protects everything in guc_state */ spinlock_t lock; /** - * sched_state: scheduling state of this context using GuC + * @sched_state: scheduling state of this context using GuC * submission */ - u16 sched_state; + u32 sched_state; /* - * fences: maintains of list of requests that have a submit - * fence related to GuC submission + * @fences: maintains a list of requests that are currently + * being fenced until a GuC operation completes */ struct list_head fences; + /** + * @blocked: fence used to signal when the blocking of a + * context's submissions is complete. + */ + struct i915_sw_fence blocked; + /** @number_committed_requests: number of committed requests */ + int number_committed_requests; + /** @requests: list of active requests on this context */ + struct list_head requests; + /** @prio: the context's current guc priority */ + u8 prio; + /** + * @prio_count: a counter of the number requests in flight in + * each priority bucket + */ + u32 prio_count[GUC_CLIENT_PRIORITY_NUM]; } guc_state; struct { - /** lock: protects everything in guc_active */ - spinlock_t lock; - /** requests: active requests on this context */ - struct list_head requests; - } guc_active; - - /* GuC scheduling state flags that do not require a lock. */ - atomic_t guc_sched_state_no_lock; - - /* GuC LRC descriptor ID */ - u16 guc_id; - - /* GuC LRC descriptor reference count */ - atomic_t guc_id_ref; + /** + * @id: handle which is used to uniquely identify this context + * with the GuC, protected by guc->contexts_lock + */ + u16 id; + /** + * @ref: the number of references to the guc_id, when + * transitioning in and out of zero protected by + * guc->contexts_lock + */ + atomic_t ref; + /** + * @link: in guc->guc_id_list when the guc_id has no refs but is + * still valid, protected by guc->contexts_lock + */ + struct list_head link; + } guc_id; - /* - * GuC ID link - in list when unpinned but guc_id still valid in GuC +#ifdef CONFIG_DRM_I915_SELFTEST + /** + * @drop_schedule_enable: Force drop of schedule enable G2H for selftest */ - struct list_head guc_id_link; + bool drop_schedule_enable; - /* GuC context blocked fence */ - struct i915_sw_fence guc_blocked; + /** + * @drop_schedule_disable: Force drop of schedule disable G2H for + * selftest + */ + bool drop_schedule_disable; - /* - * GuC priority management + /** + * @drop_deregister: Force drop of deregister G2H for selftest */ - u8 guc_prio; - u32 guc_prio_count[GUC_CLIENT_PRIORITY_NUM]; + bool drop_deregister; +#endif }; #endif /* __INTEL_CONTEXT_TYPES__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h index 87579affb952..452248884ef1 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine.h +++ b/drivers/gpu/drm/i915/gt/intel_engine.h @@ -175,6 +175,8 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value) #define I915_GEM_HWS_SEQNO 0x40 #define I915_GEM_HWS_SEQNO_ADDR (I915_GEM_HWS_SEQNO * sizeof(u32)) #define I915_GEM_HWS_MIGRATE (0x42 * sizeof(u32)) +#define I915_GEM_HWS_PXP 0x60 +#define I915_GEM_HWS_PXP_ADDR (I915_GEM_HWS_PXP * sizeof(u32)) #define I915_GEM_HWS_SCRATCH 0x80 #define I915_HWS_CSB_BUF0_INDEX 0x10 @@ -273,7 +275,7 @@ static inline bool intel_engine_uses_guc(const struct intel_engine_cs *engine) static inline bool intel_engine_has_preempt_reset(const struct intel_engine_cs *engine) { - if (!IS_ACTIVE(CONFIG_DRM_I915_PREEMPT_TIMEOUT)) + if (!CONFIG_DRM_I915_PREEMPT_TIMEOUT) return false; return intel_engine_has_preemption(engine); @@ -300,7 +302,7 @@ intel_virtual_engine_has_heartbeat(const struct intel_engine_cs *engine) static inline bool intel_engine_has_heartbeat(const struct intel_engine_cs *engine) { - if (!IS_ACTIVE(CONFIG_DRM_I915_HEARTBEAT_INTERVAL)) + if (!CONFIG_DRM_I915_HEARTBEAT_INTERVAL) return false; if (intel_engine_is_virtual(engine)) diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index 0d9105a31d84..2ae57e4656a3 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -320,6 +320,7 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id) BUILD_BUG_ON(BITS_PER_TYPE(engine->mask) < I915_NUM_ENGINES); + INIT_LIST_HEAD(&engine->pinned_contexts_list); engine->id = id; engine->legacy_idx = INVALID_ENGINE; engine->mask = BIT(id); @@ -398,7 +399,8 @@ static void __setup_engine_capabilities(struct intel_engine_cs *engine) engine->uabi_capabilities |= I915_VIDEO_AND_ENHANCE_CLASS_CAPABILITY_SFC; } else if (engine->class == VIDEO_ENHANCEMENT_CLASS) { - if (GRAPHICS_VER(i915) >= 9) + if (GRAPHICS_VER(i915) >= 9 && + engine->gt->info.sfc_mask & BIT(engine->instance)) engine->uabi_capabilities |= I915_VIDEO_AND_ENHANCE_CLASS_CAPABILITY_SFC; } @@ -474,18 +476,25 @@ void intel_engines_free(struct intel_gt *gt) } static -bool gen11_vdbox_has_sfc(struct drm_i915_private *i915, +bool gen11_vdbox_has_sfc(struct intel_gt *gt, unsigned int physical_vdbox, unsigned int logical_vdbox, u16 vdbox_mask) { + struct drm_i915_private *i915 = gt->i915; + /* * In Gen11, only even numbered logical VDBOXes are hooked * up to an SFC (Scaler & Format Converter) unit. * In Gen12, Even numbered physical instance always are connected * to an SFC. Odd numbered physical instances have SFC only if * previous even instance is fused off. + * + * Starting with Xe_HP, there's also a dedicated SFC_ENABLE field + * in the fuse register that tells us whether a specific SFC is present. */ - if (GRAPHICS_VER(i915) == 12) + if ((gt->info.sfc_mask & BIT(physical_vdbox / 2)) == 0) + return false; + else if (GRAPHICS_VER(i915) == 12) return (physical_vdbox % 2 == 0) || !(BIT(physical_vdbox - 1) & vdbox_mask); else if (GRAPHICS_VER(i915) == 11) @@ -512,7 +521,7 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) struct intel_uncore *uncore = gt->uncore; unsigned int logical_vdbox = 0; unsigned int i; - u32 media_fuse; + u32 media_fuse, fuse1; u16 vdbox_mask; u16 vebox_mask; @@ -534,6 +543,13 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) vebox_mask = (media_fuse & GEN11_GT_VEBOX_DISABLE_MASK) >> GEN11_GT_VEBOX_DISABLE_SHIFT; + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) { + fuse1 = intel_uncore_read(uncore, HSW_PAVP_FUSE1); + gt->info.sfc_mask = REG_FIELD_GET(XEHP_SFC_ENABLE_MASK, fuse1); + } else { + gt->info.sfc_mask = ~0; + } + for (i = 0; i < I915_MAX_VCS; i++) { if (!HAS_ENGINE(gt, _VCS(i))) { vdbox_mask &= ~BIT(i); @@ -546,7 +562,7 @@ static intel_engine_mask_t init_engine_mask(struct intel_gt *gt) continue; } - if (gen11_vdbox_has_sfc(i915, i, logical_vdbox, vdbox_mask)) + if (gen11_vdbox_has_sfc(gt, i, logical_vdbox, vdbox_mask)) gt->info.vdbox_sfc_access |= BIT(i); logical_vdbox++; } @@ -875,6 +891,8 @@ intel_engine_create_pinned_context(struct intel_engine_cs *engine, return ERR_PTR(err); } + list_add_tail(&ce->pinned_contexts_link, &engine->pinned_contexts_list); + /* * Give our perma-pinned kernel timelines a separate lockdep class, * so that we can use them from within the normal user timelines @@ -897,6 +915,7 @@ void intel_engine_destroy_pinned_context(struct intel_context *ce) list_del(&ce->timeline->engine_link); mutex_unlock(&hwsp->vm->mutex); + list_del(&ce->pinned_contexts_link); intel_context_unpin(ce); intel_context_put(ce); } @@ -1163,16 +1182,16 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine, u32 mmio_base = engine->mmio_base; int slice; int subslice; + int iter; memset(instdone, 0, sizeof(*instdone)); - switch (GRAPHICS_VER(i915)) { - default: + if (GRAPHICS_VER(i915) >= 8) { instdone->instdone = intel_uncore_read(uncore, RING_INSTDONE(mmio_base)); if (engine->id != RCS0) - break; + return; instdone->slice_common = intel_uncore_read(uncore, GEN7_SC_INSTDONE); @@ -1182,21 +1201,39 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine, instdone->slice_common_extra[1] = intel_uncore_read(uncore, GEN12_SC_INSTDONE_EXTRA2); } - for_each_instdone_slice_subslice(i915, sseu, slice, subslice) { - instdone->sampler[slice][subslice] = - read_subslice_reg(engine, slice, subslice, - GEN7_SAMPLER_INSTDONE); - instdone->row[slice][subslice] = - read_subslice_reg(engine, slice, subslice, - GEN7_ROW_INSTDONE); + + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) { + for_each_instdone_gslice_dss_xehp(i915, sseu, iter, slice, subslice) { + instdone->sampler[slice][subslice] = + read_subslice_reg(engine, slice, subslice, + GEN7_SAMPLER_INSTDONE); + instdone->row[slice][subslice] = + read_subslice_reg(engine, slice, subslice, + GEN7_ROW_INSTDONE); + } + } else { + for_each_instdone_slice_subslice(i915, sseu, slice, subslice) { + instdone->sampler[slice][subslice] = + read_subslice_reg(engine, slice, subslice, + GEN7_SAMPLER_INSTDONE); + instdone->row[slice][subslice] = + read_subslice_reg(engine, slice, subslice, + GEN7_ROW_INSTDONE); + } + } + + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) { + for_each_instdone_gslice_dss_xehp(i915, sseu, iter, slice, subslice) + instdone->geom_svg[slice][subslice] = + read_subslice_reg(engine, slice, subslice, + XEHPG_INSTDONE_GEOM_SVG); } - break; - case 7: + } else if (GRAPHICS_VER(i915) >= 7) { instdone->instdone = intel_uncore_read(uncore, RING_INSTDONE(mmio_base)); if (engine->id != RCS0) - break; + return; instdone->slice_common = intel_uncore_read(uncore, GEN7_SC_INSTDONE); @@ -1204,22 +1241,15 @@ void intel_engine_get_instdone(const struct intel_engine_cs *engine, intel_uncore_read(uncore, GEN7_SAMPLER_INSTDONE); instdone->row[0][0] = intel_uncore_read(uncore, GEN7_ROW_INSTDONE); - - break; - case 6: - case 5: - case 4: + } else if (GRAPHICS_VER(i915) >= 4) { instdone->instdone = intel_uncore_read(uncore, RING_INSTDONE(mmio_base)); if (engine->id == RCS0) /* HACK: Using the wrong struct member */ instdone->slice_common = intel_uncore_read(uncore, GEN4_INSTDONE1); - break; - case 3: - case 2: + } else { instdone->instdone = intel_uncore_read(uncore, GEN2_INSTDONE); - break; } } diff --git a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c index 74775ae961b2..a3698f611f45 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_heartbeat.c @@ -207,7 +207,7 @@ out: void intel_engine_unpark_heartbeat(struct intel_engine_cs *engine) { - if (!IS_ACTIVE(CONFIG_DRM_I915_HEARTBEAT_INTERVAL)) + if (!CONFIG_DRM_I915_HEARTBEAT_INTERVAL) return; next_heartbeat(engine); diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index 1f07ac4e0672..dacd62773735 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -298,6 +298,29 @@ void intel_engine_init__pm(struct intel_engine_cs *engine) intel_engine_init_heartbeat(engine); } +/** + * intel_engine_reset_pinned_contexts - Reset the pinned contexts of + * an engine. + * @engine: The engine whose pinned contexts we want to reset. + * + * Typically the pinned context LMEM images lose or get their content + * corrupted on suspend. This function resets their images. + */ +void intel_engine_reset_pinned_contexts(struct intel_engine_cs *engine) +{ + struct intel_context *ce; + + list_for_each_entry(ce, &engine->pinned_contexts_list, + pinned_contexts_link) { + /* kernel context gets reset at __engine_unpark() */ + if (ce == engine->kernel_context) + continue; + + dbg_poison_ce(ce); + ce->ops->reset(ce); + } +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftest_engine_pm.c" #endif diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.h b/drivers/gpu/drm/i915/gt/intel_engine_pm.h index 70ea46d6cfb0..8520c595f5e1 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.h @@ -69,4 +69,6 @@ intel_engine_create_kernel_request(struct intel_engine_cs *engine) void intel_engine_init__pm(struct intel_engine_cs *engine); +void intel_engine_reset_pinned_contexts(struct intel_engine_cs *engine); + #endif /* INTEL_ENGINE_PM_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index ed91bcff20eb..9167ce52487c 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -67,8 +67,11 @@ struct intel_instdone { /* The following exist only in the RCS engine */ u32 slice_common; u32 slice_common_extra[2]; - u32 sampler[I915_MAX_SLICES][I915_MAX_SUBSLICES]; - u32 row[I915_MAX_SLICES][I915_MAX_SUBSLICES]; + u32 sampler[GEN_MAX_GSLICES][I915_MAX_SUBSLICES]; + u32 row[GEN_MAX_GSLICES][I915_MAX_SUBSLICES]; + + /* Added in XeHPG */ + u32 geom_svg[GEN_MAX_GSLICES][I915_MAX_SUBSLICES]; }; /* @@ -304,6 +307,13 @@ struct intel_engine_cs { struct intel_context *kernel_context; /* pinned */ + /** + * pinned_contexts_list: List of pinned contexts. This list is only + * assumed to be manipulated during driver load- or unload time and + * does therefore not have any additional protection. + */ + struct list_head pinned_contexts_list; + intel_engine_mask_t saturated; /* submitting semaphores too late? */ struct { @@ -546,7 +556,7 @@ intel_engine_has_semaphores(const struct intel_engine_cs *engine) static inline bool intel_engine_has_timeslices(const struct intel_engine_cs *engine) { - if (!IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (!CONFIG_DRM_I915_TIMESLICE_DURATION) return false; return engine->flags & I915_ENGINE_HAS_TIMESLICES; @@ -578,4 +588,12 @@ intel_engine_has_relative_mmio(const struct intel_engine_cs * const engine) for_each_if((instdone_has_slice(dev_priv_, sseu_, slice_)) && \ (instdone_has_subslice(dev_priv_, sseu_, slice_, \ subslice_))) + +#define for_each_instdone_gslice_dss_xehp(dev_priv_, sseu_, iter_, gslice_, dss_) \ + for ((iter_) = 0, (gslice_) = 0, (dss_) = 0; \ + (iter_) < GEN_MAX_SUBSLICES; \ + (iter_)++, (gslice_) = (iter_) / GEN_DSS_PER_GSLICE, \ + (dss_) = (iter_) % GEN_DSS_PER_GSLICE) \ + for_each_if(intel_sseu_has_subslice((sseu_), 0, (iter_))) + #endif /* __INTEL_ENGINE_TYPES_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index de5f9c86b9a4..73a79c2acd3a 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -2140,10 +2140,6 @@ static void __execlists_unhold(struct i915_request *rq) if (p->flags & I915_DEPENDENCY_WEAK) continue; - /* Propagate any change in error status */ - if (rq->fence.error) - i915_request_set_error_once(w, rq->fence.error); - if (w->engine != rq->engine) continue; @@ -2565,7 +2561,7 @@ __execlists_context_pre_pin(struct intel_context *ce, if (!__test_and_set_bit(CONTEXT_INIT_BIT, &ce->flags)) { lrc_init_state(ce, engine, *vaddr); - __i915_gem_object_flush_map(ce->state->obj, 0, engine->context_size); + __i915_gem_object_flush_map(ce->state->obj, 0, engine->context_size); } return 0; @@ -2791,6 +2787,8 @@ static void execlists_sanitize(struct intel_engine_cs *engine) /* And scrub the dirty cachelines for the HWSP */ clflush_cache_range(engine->status_page.addr, PAGE_SIZE); + + intel_engine_reset_pinned_contexts(engine); } static void enable_error_interrupt(struct intel_engine_cs *engine) @@ -3341,7 +3339,7 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine) engine->flags |= I915_ENGINE_HAS_SEMAPHORES; if (can_preempt(engine)) { engine->flags |= I915_ENGINE_HAS_PREEMPTION; - if (IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (CONFIG_DRM_I915_TIMESLICE_DURATION) engine->flags |= I915_ENGINE_HAS_TIMESLICES; } } diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c index cbd0e1010a46..f17383e76eb7 100644 --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c @@ -644,7 +644,7 @@ static int init_aliasing_ppgtt(struct i915_ggtt *ggtt) struct i915_ppgtt *ppgtt; int err; - ppgtt = i915_ppgtt_create(ggtt->vm.gt); + ppgtt = i915_ppgtt_create(ggtt->vm.gt, 0); if (IS_ERR(ppgtt)) return PTR_ERR(ppgtt); @@ -727,7 +727,6 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt) atomic_set(&ggtt->vm.open, 0); - rcu_barrier(); /* flush the RCU'ed__i915_vm_release */ flush_workqueue(ggtt->vm.i915->wq); mutex_lock(&ggtt->vm.mutex); @@ -814,6 +813,21 @@ static unsigned int chv_get_total_gtt_size(u16 gmch_ctrl) return 0; } +static unsigned int gen6_gttmmadr_size(struct drm_i915_private *i915) +{ + /* + * GEN6: GTTMMADR size is 4MB and GTTADR starts at 2MB offset + * GEN8: GTTMMADR size is 16MB and GTTADR starts at 8MB offset + */ + GEM_BUG_ON(GRAPHICS_VER(i915) < 6); + return (GRAPHICS_VER(i915) < 8) ? SZ_4M : SZ_16M; +} + +static unsigned int gen6_gttadr_offset(struct drm_i915_private *i915) +{ + return gen6_gttmmadr_size(i915) / 2; +} + static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size) { struct drm_i915_private *i915 = ggtt->vm.i915; @@ -822,8 +836,8 @@ static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size) u32 pte_flags; int ret; - /* For Modern GENs the PTEs and register space are split in the BAR */ - phys_addr = pci_resource_start(pdev, 0) + pci_resource_len(pdev, 0) / 2; + GEM_WARN_ON(pci_resource_len(pdev, 0) != gen6_gttmmadr_size(i915)); + phys_addr = pci_resource_start(pdev, 0) + gen6_gttadr_offset(i915); /* * On BXT+/ICL+ writes larger than 64 bit to the GTT pagetable range @@ -910,6 +924,7 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt) size = gen8_get_total_gtt_size(snb_gmch_ctl); ggtt->vm.alloc_pt_dma = alloc_pt_dma; + ggtt->vm.lmem_pt_obj_flags = I915_BO_ALLOC_PM_EARLY; ggtt->vm.total = (size / sizeof(gen8_pte_t)) * I915_GTT_PAGE_SIZE; ggtt->vm.cleanup = gen6_gmch_remove; diff --git a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h index 1c3af0fc0456..f8253012d166 100644 --- a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h +++ b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h @@ -28,10 +28,13 @@ #define INSTR_26_TO_24_MASK 0x7000000 #define INSTR_26_TO_24_SHIFT 24 +#define __INSTR(client) ((client) << INSTR_CLIENT_SHIFT) + /* * Memory interface instructions used by the kernel */ -#define MI_INSTR(opcode, flags) (((opcode) << 23) | (flags)) +#define MI_INSTR(opcode, flags) \ + (__INSTR(INSTR_MI_CLIENT) | (opcode) << 23 | (flags)) /* Many MI commands use bit 22 of the header dword for GGTT vs PPGTT */ #define MI_GLOBAL_GTT (1<<22) @@ -57,6 +60,7 @@ #define MI_SUSPEND_FLUSH MI_INSTR(0x0b, 0) #define MI_SUSPEND_FLUSH_EN (1<<0) #define MI_SET_APPID MI_INSTR(0x0e, 0) +#define MI_SET_APPID_SESSION_ID(x) ((x) << 0) #define MI_OVERLAY_FLIP MI_INSTR(0x11, 0) #define MI_OVERLAY_CONTINUE (0x0<<21) #define MI_OVERLAY_ON (0x1<<21) @@ -146,6 +150,7 @@ #define MI_STORE_REGISTER_MEM_GEN8 MI_INSTR(0x24, 2) #define MI_SRM_LRM_GLOBAL_GTT (1<<22) #define MI_FLUSH_DW MI_INSTR(0x26, 1) /* for GEN6 */ +#define MI_FLUSH_DW_PROTECTED_MEM_EN (1 << 22) #define MI_FLUSH_DW_STORE_INDEX (1<<21) #define MI_INVALIDATE_TLB (1<<18) #define MI_FLUSH_DW_OP_STOREDW (1<<14) @@ -273,6 +278,19 @@ #define MI_MATH_REG_CF 0x33 /* + * Media instructions used by the kernel + */ +#define MEDIA_INSTR(pipe, op, sub_op, flags) \ + (__INSTR(INSTR_RC_CLIENT) | (pipe) << INSTR_SUBCLIENT_SHIFT | \ + (op) << INSTR_26_TO_24_SHIFT | (sub_op) << 16 | (flags)) + +#define MFX_WAIT MEDIA_INSTR(1, 0, 0, 0) +#define MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG REG_BIT(8) +#define MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG REG_BIT(9) + +#define CRYPTO_KEY_EXCHANGE MEDIA_INSTR(2, 6, 9, 0) + +/* * Commands used only by the command parser */ #define MI_SET_PREDICATE MI_INSTR(0x01, 0) @@ -328,8 +346,6 @@ #define GFX_OP_3DSTATE_BINDING_TABLE_EDIT_PS \ ((0x3<<29)|(0x3<<27)|(0x0<<24)|(0x47<<16)) -#define MFX_WAIT ((0x3<<29)|(0x1<<27)|(0x0<<16)) - #define COLOR_BLT ((0x2<<29)|(0x40<<22)) #define SRC_COPY_BLT ((0x2<<29)|(0x43<<22)) diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index 62d40c986642..1cb1948ac959 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -3,7 +3,7 @@ * Copyright © 2019 Intel Corporation */ -#include "debugfs_gt.h" +#include "intel_gt_debugfs.h" #include "gem/i915_gem_lmem.h" #include "i915_drv.h" @@ -15,12 +15,13 @@ #include "intel_gt_requests.h" #include "intel_migrate.h" #include "intel_mocs.h" +#include "intel_pm.h" #include "intel_rc6.h" #include "intel_renderstate.h" #include "intel_rps.h" #include "intel_uncore.h" -#include "intel_pm.h" #include "shmem_utils.h" +#include "pxp/intel_pxp.h" void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915) { @@ -434,7 +435,7 @@ void intel_gt_driver_register(struct intel_gt *gt) { intel_rps_driver_register(>->rps); - debugfs_gt_register(gt); + intel_gt_debugfs_register(gt); } static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size) @@ -481,7 +482,7 @@ static void intel_gt_fini_scratch(struct intel_gt *gt) static struct i915_address_space *kernel_vm(struct intel_gt *gt) { if (INTEL_PPGTT(gt->i915) > INTEL_PPGTT_ALIASING) - return &i915_ppgtt_create(gt)->vm; + return &i915_ppgtt_create(gt, I915_BO_ALLOC_PM_EARLY)->vm; else return i915_vm_get(>->ggtt->vm); } @@ -660,6 +661,8 @@ int intel_gt_init(struct intel_gt *gt) if (err) return err; + intel_gt_init_workarounds(gt); + /* * This is just a security blanket to placate dragons. * On some systems, we very sporadically observe that the first TLBs @@ -682,6 +685,8 @@ int intel_gt_init(struct intel_gt *gt) goto err_pm; } + intel_set_mocs_index(gt); + err = intel_engines_init(gt); if (err) goto err_engines; @@ -710,6 +715,8 @@ int intel_gt_init(struct intel_gt *gt) intel_migrate_init(>->migrate, gt); + intel_pxp_init(>->pxp); + goto out_fw; err_gt: __intel_gt_disable(gt); @@ -737,6 +744,8 @@ void intel_gt_driver_remove(struct intel_gt *gt) intel_uc_driver_remove(>->uc); intel_engines_release(gt); + + intel_gt_flush_buffer_pool(gt); } void intel_gt_driver_unregister(struct intel_gt *gt) @@ -745,12 +754,14 @@ void intel_gt_driver_unregister(struct intel_gt *gt) intel_rps_driver_unregister(>->rps); + intel_pxp_fini(>->pxp); + /* * Upon unregistering the device to prevent any new users, cancel * all in-flight requests so that we can quickly unbind the active * resources. */ - intel_gt_set_wedged(gt); + intel_gt_set_wedged_on_fini(gt); /* Scrub all HW state upon release */ with_intel_runtime_pm(gt->uncore->rpm, wakeref) @@ -765,6 +776,7 @@ void intel_gt_driver_release(struct intel_gt *gt) if (vm) /* FIXME being called twice on error paths :( */ i915_vm_put(vm); + intel_wa_list_free(>->wa_list); intel_gt_pm_fini(gt); intel_gt_fini_scratch(gt); intel_gt_fini_buffer_pool(gt); diff --git a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c index aa0a59c5b614..acc49c56a9f3 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_buffer_pool.c @@ -245,8 +245,6 @@ void intel_gt_fini_buffer_pool(struct intel_gt *gt) struct intel_gt_buffer_pool *pool = >->buffer_pool; int n; - intel_gt_flush_buffer_pool(gt); - for (n = 0; n < ARRAY_SIZE(pool->cache_list); n++) GEM_BUG_ON(!list_empty(&pool->cache_list[n])); } diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt.c b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c index 591eb60785db..1fe19ccd2794 100644 --- a/drivers/gpu/drm/i915/gt/debugfs_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c @@ -5,14 +5,15 @@ #include <linux/debugfs.h> -#include "debugfs_engines.h" -#include "debugfs_gt.h" -#include "debugfs_gt_pm.h" +#include "i915_drv.h" +#include "intel_gt_debugfs.h" +#include "intel_gt_engines_debugfs.h" +#include "intel_gt_pm_debugfs.h" #include "intel_sseu_debugfs.h" +#include "pxp/intel_pxp_debugfs.h" #include "uc/intel_uc_debugfs.h" -#include "i915_drv.h" -void debugfs_gt_register(struct intel_gt *gt) +void intel_gt_debugfs_register(struct intel_gt *gt) { struct dentry *root; @@ -23,15 +24,16 @@ void debugfs_gt_register(struct intel_gt *gt) if (IS_ERR(root)) return; - debugfs_engines_register(gt, root); - debugfs_gt_pm_register(gt, root); + intel_gt_engines_debugfs_register(gt, root); + intel_gt_pm_debugfs_register(gt, root); intel_sseu_debugfs_register(gt, root); intel_uc_debugfs_register(>->uc, root); + intel_pxp_debugfs_register(>->pxp, root); } void intel_gt_debugfs_register_files(struct dentry *root, - const struct debugfs_gt_file *files, + const struct intel_gt_debugfs_file *files, unsigned long count, void *data) { while (count--) { diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt.h b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h index f77540f727e9..8b6fca09897c 100644 --- a/drivers/gpu/drm/i915/gt/debugfs_gt.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.h @@ -3,14 +3,14 @@ * Copyright © 2019 Intel Corporation */ -#ifndef DEBUGFS_GT_H -#define DEBUGFS_GT_H +#ifndef INTEL_GT_DEBUGFS_H +#define INTEL_GT_DEBUGFS_H #include <linux/file.h> struct intel_gt; -#define DEFINE_GT_DEBUGFS_ATTRIBUTE(__name) \ +#define DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(__name) \ static int __name ## _open(struct inode *inode, struct file *file) \ { \ return single_open(file, __name ## _show, inode->i_private); \ @@ -23,16 +23,16 @@ static const struct file_operations __name ## _fops = { \ .release = single_release, \ } -void debugfs_gt_register(struct intel_gt *gt); +void intel_gt_debugfs_register(struct intel_gt *gt); -struct debugfs_gt_file { +struct intel_gt_debugfs_file { const char *name; const struct file_operations *fops; bool (*eval)(void *data); }; void intel_gt_debugfs_register_files(struct dentry *root, - const struct debugfs_gt_file *files, + const struct intel_gt_debugfs_file *files, unsigned long count, void *data); -#endif /* DEBUGFS_GT_H */ +#endif /* INTEL_GT_DEBUGFS_H */ diff --git a/drivers/gpu/drm/i915/gt/debugfs_engines.c b/drivers/gpu/drm/i915/gt/intel_gt_engines_debugfs.c index 5e3725e62241..8f9b874fdc9c 100644 --- a/drivers/gpu/drm/i915/gt/debugfs_engines.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_engines_debugfs.c @@ -6,10 +6,10 @@ #include <drm/drm_print.h> -#include "debugfs_engines.h" -#include "debugfs_gt.h" #include "i915_drv.h" /* for_each_engine! */ #include "intel_engine.h" +#include "intel_gt_debugfs.h" +#include "intel_gt_engines_debugfs.h" static int engines_show(struct seq_file *m, void *data) { @@ -24,11 +24,11 @@ static int engines_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(engines); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(engines); -void debugfs_engines_register(struct intel_gt *gt, struct dentry *root) +void intel_gt_engines_debugfs_register(struct intel_gt *gt, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "engines", &engines_fops }, }; diff --git a/drivers/gpu/drm/i915/gt/intel_gt_engines_debugfs.h b/drivers/gpu/drm/i915/gt/intel_gt_engines_debugfs.h new file mode 100644 index 000000000000..dda113452da9 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_engines_debugfs.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2019 Intel Corporation + */ + +#ifndef INTEL_GT_ENGINES_DEBUGFS_H +#define INTEL_GT_ENGINES_DEBUGFS_H + +struct intel_gt; +struct dentry; + +void intel_gt_engines_debugfs_register(struct intel_gt *gt, struct dentry *root); + +#endif /* INTEL_GT_ENGINES_DEBUGFS_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq.c b/drivers/gpu/drm/i915/gt/intel_gt_irq.c index b2de83be4d97..699a74582d32 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_irq.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_irq.c @@ -13,6 +13,7 @@ #include "intel_lrc_reg.h" #include "intel_uncore.h" #include "intel_rps.h" +#include "pxp/intel_pxp_irq.h" static void guc_irq_handler(struct intel_guc *guc, u16 iir) { @@ -64,6 +65,9 @@ gen11_other_irq_handler(struct intel_gt *gt, const u8 instance, if (instance == OTHER_GTPM_INSTANCE) return gen11_rps_irq_handler(>->rps, iir); + if (instance == OTHER_KCR_INSTANCE) + return intel_pxp_irq_handler(>->pxp, iir); + WARN_ONCE(1, "unhandled other interrupt instance=0x%x, iir=0x%x\n", instance, iir); } @@ -196,6 +200,9 @@ void gen11_gt_irq_reset(struct intel_gt *gt) intel_uncore_write(uncore, GEN11_GPM_WGBOXPERF_INTR_MASK, ~0); intel_uncore_write(uncore, GEN11_GUC_SG_INTR_ENABLE, 0); intel_uncore_write(uncore, GEN11_GUC_SG_INTR_MASK, ~0); + + intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_ENABLE, 0); + intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_MASK, ~0); } void gen11_gt_irq_postinstall(struct intel_gt *gt) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c index dea8e2479897..524eaf678790 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c @@ -18,6 +18,9 @@ #include "intel_rc6.h" #include "intel_rps.h" #include "intel_wakeref.h" +#include "pxp/intel_pxp_pm.h" + +#define I915_GT_SUSPEND_IDLE_TIMEOUT (HZ / 2) static void user_forcewake(struct intel_gt *gt, bool suspend) { @@ -262,6 +265,8 @@ int intel_gt_resume(struct intel_gt *gt) intel_uc_resume(>->uc); + intel_pxp_resume(>->pxp); + user_forcewake(gt, false); out_fw: @@ -279,7 +284,7 @@ static void wait_for_suspend(struct intel_gt *gt) if (!intel_gt_pm_is_awake(gt)) return; - if (intel_gt_wait_for_idle(gt, I915_GEM_IDLE_TIMEOUT) == -ETIME) { + if (intel_gt_wait_for_idle(gt, I915_GT_SUSPEND_IDLE_TIMEOUT) == -ETIME) { /* * Forcibly cancel outstanding work and leave * the gpu quiet. @@ -296,7 +301,7 @@ void intel_gt_suspend_prepare(struct intel_gt *gt) user_forcewake(gt, true); wait_for_suspend(gt); - intel_uc_suspend(>->uc); + intel_pxp_suspend(>->pxp, false); } static suspend_state_t pm_suspend_target(void) @@ -320,6 +325,8 @@ void intel_gt_suspend_late(struct intel_gt *gt) GEM_BUG_ON(gt->awake); + intel_uc_suspend(>->uc); + /* * On disabling the device, we want to turn off HW access to memory * that we no longer own. @@ -346,6 +353,7 @@ void intel_gt_suspend_late(struct intel_gt *gt) void intel_gt_runtime_suspend(struct intel_gt *gt) { + intel_pxp_suspend(>->pxp, true); intel_uc_runtime_suspend(>->uc); GT_TRACE(gt, "\n"); @@ -353,11 +361,19 @@ void intel_gt_runtime_suspend(struct intel_gt *gt) int intel_gt_runtime_resume(struct intel_gt *gt) { + int ret; + GT_TRACE(gt, "\n"); intel_gt_init_swizzling(gt); intel_ggtt_restore_fences(gt->ggtt); - return intel_uc_runtime_resume(>->uc); + ret = intel_uc_runtime_resume(>->uc); + if (ret) + return ret; + + intel_pxp_resume(>->pxp); + + return 0; } static ktime_t __intel_gt_get_awake_time(const struct intel_gt *gt) diff --git a/drivers/gpu/drm/i915/gt/debugfs_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c index d6f5836396f8..5f84ad602642 100644 --- a/drivers/gpu/drm/i915/gt/debugfs_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c @@ -6,12 +6,12 @@ #include <linux/seq_file.h> -#include "debugfs_gt.h" -#include "debugfs_gt_pm.h" #include "i915_drv.h" #include "intel_gt.h" #include "intel_gt_clock_utils.h" +#include "intel_gt_debugfs.h" #include "intel_gt_pm.h" +#include "intel_gt_pm_debugfs.h" #include "intel_llc.h" #include "intel_rc6.h" #include "intel_rps.h" @@ -36,7 +36,7 @@ static int fw_domains_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(fw_domains); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(fw_domains); static void print_rc6_res(struct seq_file *m, const char *title, @@ -238,11 +238,10 @@ static int drpc_show(struct seq_file *m, void *unused) return err; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(drpc); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(drpc); -static int frequency_show(struct seq_file *m, void *unused) +void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *p) { - struct intel_gt *gt = m->private; struct drm_i915_private *i915 = gt->i915; struct intel_uncore *uncore = gt->uncore; struct intel_rps *rps = >->rps; @@ -254,21 +253,21 @@ static int frequency_show(struct seq_file *m, void *unused) u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL); u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK); - seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf); - seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f); - seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >> + drm_printf(p, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf); + drm_printf(p, "Requested VID: %d\n", rgvswctl & 0x3f); + drm_printf(p, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >> MEMSTAT_VID_SHIFT); - seq_printf(m, "Current P-state: %d\n", + drm_printf(p, "Current P-state: %d\n", (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT); } else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) { u32 rpmodectl, freq_sts; rpmodectl = intel_uncore_read(uncore, GEN6_RP_CONTROL); - seq_printf(m, "Video Turbo Mode: %s\n", + drm_printf(p, "Video Turbo Mode: %s\n", yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); - seq_printf(m, "HW control enabled: %s\n", + drm_printf(p, "HW control enabled: %s\n", yesno(rpmodectl & GEN6_RP_ENABLE)); - seq_printf(m, "SW control enabled: %s\n", + drm_printf(p, "SW control enabled: %s\n", yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE)); @@ -276,25 +275,25 @@ static int frequency_show(struct seq_file *m, void *unused) freq_sts = vlv_punit_read(i915, PUNIT_REG_GPU_FREQ_STS); vlv_punit_put(i915); - seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts); - seq_printf(m, "DDR freq: %d MHz\n", i915->mem_freq); + drm_printf(p, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts); + drm_printf(p, "DDR freq: %d MHz\n", i915->mem_freq); - seq_printf(m, "actual GPU freq: %d MHz\n", + drm_printf(p, "actual GPU freq: %d MHz\n", intel_gpu_freq(rps, (freq_sts >> 8) & 0xff)); - seq_printf(m, "current GPU freq: %d MHz\n", + drm_printf(p, "current GPU freq: %d MHz\n", intel_gpu_freq(rps, rps->cur_freq)); - seq_printf(m, "max GPU freq: %d MHz\n", + drm_printf(p, "max GPU freq: %d MHz\n", intel_gpu_freq(rps, rps->max_freq)); - seq_printf(m, "min GPU freq: %d MHz\n", + drm_printf(p, "min GPU freq: %d MHz\n", intel_gpu_freq(rps, rps->min_freq)); - seq_printf(m, "idle GPU freq: %d MHz\n", + drm_printf(p, "idle GPU freq: %d MHz\n", intel_gpu_freq(rps, rps->idle_freq)); - seq_printf(m, "efficient (RPe) frequency: %d MHz\n", + drm_printf(p, "efficient (RPe) frequency: %d MHz\n", intel_gpu_freq(rps, rps->efficient_freq)); } else if (GRAPHICS_VER(i915) >= 6) { u32 rp_state_limits; @@ -309,13 +308,11 @@ static int frequency_show(struct seq_file *m, void *unused) int max_freq; rp_state_limits = intel_uncore_read(uncore, GEN6_RP_STATE_LIMITS); - if (IS_GEN9_LP(i915)) { - rp_state_cap = intel_uncore_read(uncore, BXT_RP_STATE_CAP); + rp_state_cap = intel_rps_read_state_cap(rps); + if (IS_GEN9_LP(i915)) gt_perf_status = intel_uncore_read(uncore, BXT_GT_PERF_STATUS); - } else { - rp_state_cap = intel_uncore_read(uncore, GEN6_RP_STATE_CAP); + else gt_perf_status = intel_uncore_read(uncore, GEN6_GT_PERF_STATUS); - } /* RPSTAT1 is in the GT power well */ intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL); @@ -376,113 +373,121 @@ static int frequency_show(struct seq_file *m, void *unused) } pm_mask = intel_uncore_read(uncore, GEN6_PMINTRMSK); - seq_printf(m, "Video Turbo Mode: %s\n", + drm_printf(p, "Video Turbo Mode: %s\n", yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); - seq_printf(m, "HW control enabled: %s\n", + drm_printf(p, "HW control enabled: %s\n", yesno(rpmodectl & GEN6_RP_ENABLE)); - seq_printf(m, "SW control enabled: %s\n", + drm_printf(p, "SW control enabled: %s\n", yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == GEN6_RP_MEDIA_SW_MODE)); - seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n", + drm_printf(p, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n", pm_ier, pm_imr, pm_mask); if (GRAPHICS_VER(i915) <= 10) - seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n", + drm_printf(p, "PM ISR=0x%08x IIR=0x%08x\n", pm_isr, pm_iir); - seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n", + drm_printf(p, "pm_intrmsk_mbz: 0x%08x\n", rps->pm_intrmsk_mbz); - seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status); - seq_printf(m, "Render p-state ratio: %d\n", + drm_printf(p, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status); + drm_printf(p, "Render p-state ratio: %d\n", (gt_perf_status & (GRAPHICS_VER(i915) >= 9 ? 0x1ff00 : 0xff00)) >> 8); - seq_printf(m, "Render p-state VID: %d\n", + drm_printf(p, "Render p-state VID: %d\n", gt_perf_status & 0xff); - seq_printf(m, "Render p-state limit: %d\n", + drm_printf(p, "Render p-state limit: %d\n", rp_state_limits & 0xff); - seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat); - seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl); - seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit); - seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit); - seq_printf(m, "RPNSWREQ: %dMHz\n", reqf); - seq_printf(m, "CAGF: %dMHz\n", cagf); - seq_printf(m, "RP CUR UP EI: %d (%lldns)\n", + drm_printf(p, "RPSTAT1: 0x%08x\n", rpstat); + drm_printf(p, "RPMODECTL: 0x%08x\n", rpmodectl); + drm_printf(p, "RPINCLIMIT: 0x%08x\n", rpinclimit); + drm_printf(p, "RPDECLIMIT: 0x%08x\n", rpdeclimit); + drm_printf(p, "RPNSWREQ: %dMHz\n", reqf); + drm_printf(p, "CAGF: %dMHz\n", cagf); + drm_printf(p, "RP CUR UP EI: %d (%lldns)\n", rpcurupei, intel_gt_pm_interval_to_ns(gt, rpcurupei)); - seq_printf(m, "RP CUR UP: %d (%lldns)\n", + drm_printf(p, "RP CUR UP: %d (%lldns)\n", rpcurup, intel_gt_pm_interval_to_ns(gt, rpcurup)); - seq_printf(m, "RP PREV UP: %d (%lldns)\n", + drm_printf(p, "RP PREV UP: %d (%lldns)\n", rpprevup, intel_gt_pm_interval_to_ns(gt, rpprevup)); - seq_printf(m, "Up threshold: %d%%\n", + drm_printf(p, "Up threshold: %d%%\n", rps->power.up_threshold); - seq_printf(m, "RP UP EI: %d (%lldns)\n", + drm_printf(p, "RP UP EI: %d (%lldns)\n", rpupei, intel_gt_pm_interval_to_ns(gt, rpupei)); - seq_printf(m, "RP UP THRESHOLD: %d (%lldns)\n", + drm_printf(p, "RP UP THRESHOLD: %d (%lldns)\n", rpupt, intel_gt_pm_interval_to_ns(gt, rpupt)); - seq_printf(m, "RP CUR DOWN EI: %d (%lldns)\n", + drm_printf(p, "RP CUR DOWN EI: %d (%lldns)\n", rpcurdownei, intel_gt_pm_interval_to_ns(gt, rpcurdownei)); - seq_printf(m, "RP CUR DOWN: %d (%lldns)\n", + drm_printf(p, "RP CUR DOWN: %d (%lldns)\n", rpcurdown, intel_gt_pm_interval_to_ns(gt, rpcurdown)); - seq_printf(m, "RP PREV DOWN: %d (%lldns)\n", + drm_printf(p, "RP PREV DOWN: %d (%lldns)\n", rpprevdown, intel_gt_pm_interval_to_ns(gt, rpprevdown)); - seq_printf(m, "Down threshold: %d%%\n", + drm_printf(p, "Down threshold: %d%%\n", rps->power.down_threshold); - seq_printf(m, "RP DOWN EI: %d (%lldns)\n", + drm_printf(p, "RP DOWN EI: %d (%lldns)\n", rpdownei, intel_gt_pm_interval_to_ns(gt, rpdownei)); - seq_printf(m, "RP DOWN THRESHOLD: %d (%lldns)\n", + drm_printf(p, "RP DOWN THRESHOLD: %d (%lldns)\n", rpdownt, intel_gt_pm_interval_to_ns(gt, rpdownt)); max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 0 : rp_state_cap >> 16) & 0xff; max_freq *= (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Lowest (RPN) frequency: %dMHz\n", + drm_printf(p, "Lowest (RPN) frequency: %dMHz\n", intel_gpu_freq(rps, max_freq)); max_freq = (rp_state_cap & 0xff00) >> 8; max_freq *= (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Nominal (RP1) frequency: %dMHz\n", + drm_printf(p, "Nominal (RP1) frequency: %dMHz\n", intel_gpu_freq(rps, max_freq)); max_freq = (IS_GEN9_LP(i915) ? rp_state_cap >> 16 : rp_state_cap >> 0) & 0xff; max_freq *= (IS_GEN9_BC(i915) || GRAPHICS_VER(i915) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n", + drm_printf(p, "Max non-overclocked (RP0) frequency: %dMHz\n", intel_gpu_freq(rps, max_freq)); - seq_printf(m, "Max overclocked frequency: %dMHz\n", + drm_printf(p, "Max overclocked frequency: %dMHz\n", intel_gpu_freq(rps, rps->max_freq)); - seq_printf(m, "Current freq: %d MHz\n", + drm_printf(p, "Current freq: %d MHz\n", intel_gpu_freq(rps, rps->cur_freq)); - seq_printf(m, "Actual freq: %d MHz\n", cagf); - seq_printf(m, "Idle freq: %d MHz\n", + drm_printf(p, "Actual freq: %d MHz\n", cagf); + drm_printf(p, "Idle freq: %d MHz\n", intel_gpu_freq(rps, rps->idle_freq)); - seq_printf(m, "Min freq: %d MHz\n", + drm_printf(p, "Min freq: %d MHz\n", intel_gpu_freq(rps, rps->min_freq)); - seq_printf(m, "Boost freq: %d MHz\n", + drm_printf(p, "Boost freq: %d MHz\n", intel_gpu_freq(rps, rps->boost_freq)); - seq_printf(m, "Max freq: %d MHz\n", + drm_printf(p, "Max freq: %d MHz\n", intel_gpu_freq(rps, rps->max_freq)); - seq_printf(m, + drm_printf(p, "efficient (RPe) frequency: %d MHz\n", intel_gpu_freq(rps, rps->efficient_freq)); } else { - seq_puts(m, "no P-state info available\n"); + drm_puts(p, "no P-state info available\n"); } - seq_printf(m, "Current CD clock frequency: %d kHz\n", i915->cdclk.hw.cdclk); - seq_printf(m, "Max CD clock frequency: %d kHz\n", i915->max_cdclk_freq); - seq_printf(m, "Max pixel clock frequency: %d kHz\n", i915->max_dotclk_freq); + drm_printf(p, "Current CD clock frequency: %d kHz\n", i915->cdclk.hw.cdclk); + drm_printf(p, "Max CD clock frequency: %d kHz\n", i915->max_cdclk_freq); + drm_printf(p, "Max pixel clock frequency: %d kHz\n", i915->max_dotclk_freq); intel_runtime_pm_put(uncore->rpm, wakeref); +} + +static int frequency_show(struct seq_file *m, void *unused) +{ + struct intel_gt *gt = m->private; + struct drm_printer p = drm_seq_file_printer(m); + + intel_gt_pm_frequency_dump(gt, &p); return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(frequency); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(frequency); static int llc_show(struct seq_file *m, void *data) { @@ -535,7 +540,7 @@ static bool llc_eval(void *data) return HAS_LLC(gt->i915); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(llc); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(llc); static const char *rps_power_to_str(unsigned int power) { @@ -614,11 +619,11 @@ static bool rps_eval(void *data) return HAS_RPS(gt->i915); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(rps_boost); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(rps_boost); -void debugfs_gt_pm_register(struct intel_gt *gt, struct dentry *root) +void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "drpc", &drpc_fops, NULL }, { "frequency", &frequency_fops, NULL }, { "forcewake", &fw_domains_fops, NULL }, diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h new file mode 100644 index 000000000000..2b824289582b --- /dev/null +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2019 Intel Corporation + */ + +#ifndef INTEL_GT_PM_DEBUGFS_H +#define INTEL_GT_PM_DEBUGFS_H + +struct intel_gt; +struct dentry; +struct drm_printer; + +void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root); +void intel_gt_pm_frequency_dump(struct intel_gt *gt, struct drm_printer *m); + +#endif /* INTEL_GT_PM_DEBUGFS_H */ diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h index a81e21bf1bd1..14216cc471b1 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h @@ -26,6 +26,7 @@ #include "intel_rps_types.h" #include "intel_migrate_types.h" #include "intel_wakeref.h" +#include "pxp/intel_pxp_types.h" struct drm_i915_private; struct i915_ggtt; @@ -72,6 +73,8 @@ struct intel_gt { struct intel_uc uc; + struct i915_wa_list wa_list; + struct intel_gt_timelines { spinlock_t lock; /* protects active_list */ struct list_head active_list; @@ -184,6 +187,9 @@ struct intel_gt { u8 num_engines; + /* General presence of SFC units */ + u8 sfc_mask; + /* Media engine access to SFC per instance */ u8 vdbox_sfc_access; @@ -192,6 +198,12 @@ struct intel_gt { unsigned long mslice_mask; } info; + + struct { + u8 uc_index; + } mocs; + + struct intel_pxp pxp; }; enum intel_gt_scratch_field { diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c index e137dd32b5b8..67d14afa6623 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -28,7 +28,8 @@ struct drm_i915_gem_object *alloc_pt_lmem(struct i915_address_space *vm, int sz) * used the passed in size for the page size, which should ensure it * also has the same alignment. */ - obj = __i915_gem_object_create_lmem_with_ps(vm->i915, sz, sz, 0); + obj = __i915_gem_object_create_lmem_with_ps(vm->i915, sz, sz, + vm->lmem_pt_obj_flags); /* * Ensure all paging structures for this vm share the same dma-resv * object underneath, with the idea that one object_lock() will lock @@ -155,7 +156,7 @@ void i915_vm_resv_release(struct kref *kref) static void __i915_vm_release(struct work_struct *work) { struct i915_address_space *vm = - container_of(work, struct i915_address_space, rcu.work); + container_of(work, struct i915_address_space, release_work); vm->cleanup(vm); i915_address_space_fini(vm); @@ -171,7 +172,7 @@ void i915_vm_release(struct kref *kref) GEM_BUG_ON(i915_is_ggtt(vm)); trace_i915_ppgtt_release(vm); - queue_rcu_work(vm->i915->wq, &vm->rcu); + queue_work(vm->i915->wq, &vm->release_work); } void i915_address_space_init(struct i915_address_space *vm, int subclass) @@ -185,7 +186,7 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass) if (!kref_read(&vm->resv_ref)) kref_init(&vm->resv_ref); - INIT_RCU_WORK(&vm->rcu, __i915_vm_release); + INIT_WORK(&vm->release_work, __i915_vm_release); atomic_set(&vm->open, 1); /* diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h index bc7153018ebd..bc6750263359 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.h +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h @@ -213,7 +213,7 @@ struct i915_vma_ops { struct i915_address_space { struct kref ref; - struct rcu_work rcu; + struct work_struct release_work; struct drm_mm mm; struct intel_gt *gt; @@ -260,6 +260,9 @@ struct i915_address_space { u8 pd_shift; u8 scratch_order; + /* Flags used when creating page-table objects for this vm */ + unsigned long lmem_pt_obj_flags; + struct drm_i915_gem_object * (*alloc_pt_dma)(struct i915_address_space *vm, int sz); @@ -519,7 +522,8 @@ i915_page_dir_dma_addr(const struct i915_ppgtt *ppgtt, const unsigned int n) return __px_dma(pt ? px_base(pt) : ppgtt->vm.scratch[ppgtt->vm.top]); } -void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt); +void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt, + unsigned long lmem_pt_obj_flags); int i915_ggtt_probe_hw(struct drm_i915_private *i915); int i915_ggtt_init_hw(struct drm_i915_private *i915); @@ -537,7 +541,8 @@ static inline bool i915_ggtt_has_aperture(const struct i915_ggtt *ggtt) int i915_ppgtt_init_hw(struct intel_gt *gt); -struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt); +struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt, + unsigned long lmem_pt_obj_flags); void i915_ggtt_suspend(struct i915_ggtt *gtt); void i915_ggtt_resume(struct i915_ggtt *ggtt); diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c index bb4af4977920..3ef9eaf8c50e 100644 --- a/drivers/gpu/drm/i915/gt/intel_lrc.c +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c @@ -226,6 +226,40 @@ static const u8 gen12_xcs_offsets[] = { END }; +static const u8 dg2_xcs_offsets[] = { + NOP(1), + LRI(15, POSTED), + REG16(0x244), + REG(0x034), + REG(0x030), + REG(0x038), + REG(0x03c), + REG(0x168), + REG(0x140), + REG(0x110), + REG(0x1c0), + REG(0x1c4), + REG(0x1c8), + REG(0x180), + REG16(0x2b4), + REG(0x120), + REG(0x124), + + NOP(1), + LRI(9, POSTED), + REG16(0x3a8), + REG16(0x28c), + REG16(0x288), + REG16(0x284), + REG16(0x280), + REG16(0x27c), + REG16(0x278), + REG16(0x274), + REG16(0x270), + + END +}; + static const u8 gen8_rcs_offsets[] = { NOP(1), LRI(14, POSTED), @@ -525,6 +559,49 @@ static const u8 xehp_rcs_offsets[] = { END }; +static const u8 dg2_rcs_offsets[] = { + NOP(1), + LRI(15, POSTED), + REG16(0x244), + REG(0x034), + REG(0x030), + REG(0x038), + REG(0x03c), + REG(0x168), + REG(0x140), + REG(0x110), + REG(0x1c0), + REG(0x1c4), + REG(0x1c8), + REG(0x180), + REG16(0x2b4), + REG(0x120), + REG(0x124), + + NOP(1), + LRI(9, POSTED), + REG16(0x3a8), + REG16(0x28c), + REG16(0x288), + REG16(0x284), + REG16(0x280), + REG16(0x27c), + REG16(0x278), + REG16(0x274), + REG16(0x270), + + LRI(3, POSTED), + REG(0x1b0), + REG16(0x5a8), + REG16(0x5ac), + + NOP(6), + LRI(1, 0), + REG(0x0c8), + + END +}; + #undef END #undef REG16 #undef REG @@ -543,7 +620,9 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine) !intel_engine_has_relative_mmio(engine)); if (engine->class == RENDER_CLASS) { - if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50)) + if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55)) + return dg2_rcs_offsets; + else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50)) return xehp_rcs_offsets; else if (GRAPHICS_VER(engine->i915) >= 12) return gen12_rcs_offsets; @@ -554,7 +633,9 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine) else return gen8_rcs_offsets; } else { - if (GRAPHICS_VER(engine->i915) >= 12) + if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55)) + return dg2_xcs_offsets; + else if (GRAPHICS_VER(engine->i915) >= 12) return gen12_xcs_offsets; else if (GRAPHICS_VER(engine->i915) >= 9) return gen9_xcs_offsets; @@ -861,7 +942,8 @@ __lrc_alloc_state(struct intel_context *ce, struct intel_engine_cs *engine) context_size += PAGE_SIZE; } - obj = i915_gem_object_create_lmem(engine->i915, context_size, 0); + obj = i915_gem_object_create_lmem(engine->i915, context_size, + I915_BO_ALLOC_PM_VOLATILE); if (IS_ERR(obj)) obj = i915_gem_object_create_shmem(engine->i915, context_size); if (IS_ERR(obj)) diff --git a/drivers/gpu/drm/i915/gt/intel_migrate.c b/drivers/gpu/drm/i915/gt/intel_migrate.c index 1dac21aa7e5c..afb1cce9a352 100644 --- a/drivers/gpu/drm/i915/gt/intel_migrate.c +++ b/drivers/gpu/drm/i915/gt/intel_migrate.c @@ -78,7 +78,7 @@ static struct i915_address_space *migrate_vm(struct intel_gt *gt) * TODO: Add support for huge LMEM PTEs */ - vm = i915_ppgtt_create(gt); + vm = i915_ppgtt_create(gt, I915_BO_ALLOC_PM_EARLY); if (IS_ERR(vm)) return ERR_CAST(vm); diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c index 582c4423b95d..15f9ada28a7a 100644 --- a/drivers/gpu/drm/i915/gt/intel_mocs.c +++ b/drivers/gpu/drm/i915/gt/intel_mocs.c @@ -22,6 +22,8 @@ struct drm_i915_mocs_table { unsigned int size; unsigned int n_entries; const struct drm_i915_mocs_entry *table; + u8 uc_index; + u8 unused_entries_index; }; /* Defines for the tables (XXX_MOCS_0 - XXX_MOCS_63) */ @@ -40,6 +42,8 @@ struct drm_i915_mocs_table { #define L3_ESC(value) ((value) << 0) #define L3_SCC(value) ((value) << 1) #define _L3_CACHEABILITY(value) ((value) << 4) +#define L3_GLBGO(value) ((value) << 6) +#define L3_LKUP(value) ((value) << 7) /* Helper defines */ #define GEN9_NUM_MOCS_ENTRIES 64 /* 63-64 are reserved, but configured. */ @@ -88,18 +92,25 @@ struct drm_i915_mocs_table { * * Entries not part of the following tables are undefined as far as * userspace is concerned and shouldn't be relied upon. For Gen < 12 - * they will be initialized to PTE. Gen >= 12 onwards don't have a setting for - * PTE and will be initialized to an invalid value. + * they will be initialized to PTE. Gen >= 12 don't have a setting for + * PTE and those platforms except TGL/RKL will be initialized L3 WB to + * catch accidental use of reserved and unused mocs indexes. * * The last few entries are reserved by the hardware. For ICL+ they * should be initialized according to bspec and never used, for older * platforms they should never be written to. * - * NOTE: These tables are part of bspec and defined as part of hardware + * NOTE1: These tables are part of bspec and defined as part of hardware * interface for ICL+. For older platforms, they are part of kernel * ABI. It is expected that, for specific hardware platform, existing * entries will remain constant and the table will only be updated by * adding new entries, filling unused positions. + * + * NOTE2: For GEN >= 12 except TGL and RKL, reserved and unspecified MOCS + * indices have been set to L3 WB. These reserved entries should never + * be used, they may be changed to low performant variants with better + * coherency in the future if more entries are needed. + * For TGL/RKL, all the unspecified MOCS indexes are mapped to L3 UC. */ #define GEN9_MOCS_ENTRIES \ MOCS_ENTRY(I915_MOCS_UNCACHED, \ @@ -282,17 +293,9 @@ static const struct drm_i915_mocs_entry icl_mocs_table[] = { }; static const struct drm_i915_mocs_entry dg1_mocs_table[] = { - /* Error */ - MOCS_ENTRY(0, 0, L3_0_DIRECT), /* UC */ MOCS_ENTRY(1, 0, L3_1_UC), - - /* Reserved */ - MOCS_ENTRY(2, 0, L3_0_DIRECT), - MOCS_ENTRY(3, 0, L3_0_DIRECT), - MOCS_ENTRY(4, 0, L3_0_DIRECT), - /* WB - L3 */ MOCS_ENTRY(5, 0, L3_3_WB), /* WB - L3 50% */ @@ -314,6 +317,83 @@ static const struct drm_i915_mocs_entry dg1_mocs_table[] = { MOCS_ENTRY(63, 0, L3_1_UC), }; +static const struct drm_i915_mocs_entry gen12_mocs_table[] = { + GEN11_MOCS_ENTRIES, + /* Implicitly enable L1 - HDC:L1 + L3 + LLC */ + MOCS_ENTRY(48, + LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), + L3_3_WB), + /* Implicitly enable L1 - HDC:L1 + L3 */ + MOCS_ENTRY(49, + LE_1_UC | LE_TC_1_LLC, + L3_3_WB), + /* Implicitly enable L1 - HDC:L1 + LLC */ + MOCS_ENTRY(50, + LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), + L3_1_UC), + /* Implicitly enable L1 - HDC:L1 */ + MOCS_ENTRY(51, + LE_1_UC | LE_TC_1_LLC, + L3_1_UC), + /* HW Special Case (CCS) */ + MOCS_ENTRY(60, + LE_3_WB | LE_TC_1_LLC | LE_LRUM(3), + L3_1_UC), + /* HW Special Case (Displayable) */ + MOCS_ENTRY(61, + LE_1_UC | LE_TC_1_LLC, + L3_3_WB), +}; + +static const struct drm_i915_mocs_entry xehpsdv_mocs_table[] = { + /* wa_1608975824 */ + MOCS_ENTRY(0, 0, L3_3_WB | L3_LKUP(1)), + + /* UC - Coherent; GO:L3 */ + MOCS_ENTRY(1, 0, L3_1_UC | L3_LKUP(1)), + /* UC - Coherent; GO:Memory */ + MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)), + /* UC - Non-Coherent; GO:Memory */ + MOCS_ENTRY(3, 0, L3_1_UC | L3_GLBGO(1)), + /* UC - Non-Coherent; GO:L3 */ + MOCS_ENTRY(4, 0, L3_1_UC), + + /* WB */ + MOCS_ENTRY(5, 0, L3_3_WB | L3_LKUP(1)), + + /* HW Reserved - SW program but never use. */ + MOCS_ENTRY(48, 0, L3_3_WB | L3_LKUP(1)), + MOCS_ENTRY(49, 0, L3_1_UC | L3_LKUP(1)), + MOCS_ENTRY(60, 0, L3_1_UC), + MOCS_ENTRY(61, 0, L3_1_UC), + MOCS_ENTRY(62, 0, L3_1_UC), + MOCS_ENTRY(63, 0, L3_1_UC), +}; + +static const struct drm_i915_mocs_entry dg2_mocs_table[] = { + /* UC - Coherent; GO:L3 */ + MOCS_ENTRY(0, 0, L3_1_UC | L3_LKUP(1)), + /* UC - Coherent; GO:Memory */ + MOCS_ENTRY(1, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)), + /* UC - Non-Coherent; GO:Memory */ + MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1)), + + /* WB - LC */ + MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)), +}; + +static const struct drm_i915_mocs_entry dg2_mocs_table_g10_ax[] = { + /* Wa_14011441408: Set Go to Memory for MOCS#0 */ + MOCS_ENTRY(0, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)), + /* UC - Coherent; GO:Memory */ + MOCS_ENTRY(1, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)), + /* UC - Non-Coherent; GO:Memory */ + MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1)), + + /* WB - LC */ + MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)), +}; + enum { HAS_GLOBAL_MOCS = BIT(0), HAS_ENGINE_MOCS = BIT(1), @@ -340,14 +420,45 @@ static unsigned int get_mocs_settings(const struct drm_i915_private *i915, { unsigned int flags; - if (IS_DG1(i915)) { + memset(table, 0, sizeof(struct drm_i915_mocs_table)); + + table->unused_entries_index = I915_MOCS_PTE; + if (IS_DG2(i915)) { + if (IS_DG2_GT_STEP(i915, G10, STEP_A0, STEP_B0)) { + table->size = ARRAY_SIZE(dg2_mocs_table_g10_ax); + table->table = dg2_mocs_table_g10_ax; + } else { + table->size = ARRAY_SIZE(dg2_mocs_table); + table->table = dg2_mocs_table; + } + table->uc_index = 1; + table->n_entries = GEN9_NUM_MOCS_ENTRIES; + table->unused_entries_index = 3; + } else if (IS_XEHPSDV(i915)) { + table->size = ARRAY_SIZE(xehpsdv_mocs_table); + table->table = xehpsdv_mocs_table; + table->uc_index = 2; + table->n_entries = GEN9_NUM_MOCS_ENTRIES; + table->unused_entries_index = 5; + } else if (IS_DG1(i915)) { table->size = ARRAY_SIZE(dg1_mocs_table); table->table = dg1_mocs_table; + table->uc_index = 1; table->n_entries = GEN9_NUM_MOCS_ENTRIES; - } else if (GRAPHICS_VER(i915) >= 12) { + table->uc_index = 1; + table->unused_entries_index = 5; + } else if (IS_TIGERLAKE(i915) || IS_ROCKETLAKE(i915)) { + /* For TGL/RKL, Can't be changed now for ABI reasons */ table->size = ARRAY_SIZE(tgl_mocs_table); table->table = tgl_mocs_table; table->n_entries = GEN9_NUM_MOCS_ENTRIES; + table->uc_index = 3; + } else if (GRAPHICS_VER(i915) >= 12) { + table->size = ARRAY_SIZE(gen12_mocs_table); + table->table = gen12_mocs_table; + table->n_entries = GEN9_NUM_MOCS_ENTRIES; + table->uc_index = 3; + table->unused_entries_index = 2; } else if (GRAPHICS_VER(i915) == 11) { table->size = ARRAY_SIZE(icl_mocs_table); table->table = icl_mocs_table; @@ -393,16 +504,16 @@ static unsigned int get_mocs_settings(const struct drm_i915_private *i915, } /* - * Get control_value from MOCS entry taking into account when it's not used: - * I915_MOCS_PTE's value is returned in this case. + * Get control_value from MOCS entry taking into account when it's not used + * then if unused_entries_index is non-zero then its value will be returned + * otherwise I915_MOCS_PTE's value is returned in this case. */ static u32 get_entry_control(const struct drm_i915_mocs_table *table, unsigned int index) { if (index < table->size && table->table[index].used) return table->table[index].control_value; - - return table->table[I915_MOCS_PTE].control_value; + return table->table[table->unused_entries_index].control_value; } #define for_each_mocs(mocs, t, i) \ @@ -417,6 +528,8 @@ static void __init_mocs_table(struct intel_uncore *uncore, unsigned int i; u32 mocs; + drm_WARN_ONCE(&uncore->i915->drm, !table->unused_entries_index, + "Unused entries index should have been defined\n"); for_each_mocs(mocs, table, i) intel_uncore_write_fw(uncore, _MMIO(addr + i * 4), mocs); } @@ -443,16 +556,16 @@ static void init_mocs_table(struct intel_engine_cs *engine, } /* - * Get l3cc_value from MOCS entry taking into account when it's not used: - * I915_MOCS_PTE's value is returned in this case. + * Get l3cc_value from MOCS entry taking into account when it's not used + * then if unused_entries_index is not zero then its value will be returned + * otherwise I915_MOCS_PTE's value is returned in this case. */ static u16 get_entry_l3cc(const struct drm_i915_mocs_table *table, unsigned int index) { if (index < table->size && table->table[index].used) return table->table[index].l3cc_value; - - return table->table[I915_MOCS_PTE].l3cc_value; + return table->table[table->unused_entries_index].l3cc_value; } static u32 l3cc_combine(u16 low, u16 high) @@ -468,10 +581,9 @@ static u32 l3cc_combine(u16 low, u16 high) 0; \ i++) -static void init_l3cc_table(struct intel_engine_cs *engine, +static void init_l3cc_table(struct intel_uncore *uncore, const struct drm_i915_mocs_table *table) { - struct intel_uncore *uncore = engine->uncore; unsigned int i; u32 l3cc; @@ -496,7 +608,7 @@ void intel_mocs_init_engine(struct intel_engine_cs *engine) init_mocs_table(engine, &table); if (flags & HAS_RENDER_L3CC && engine->class == RENDER_CLASS) - init_l3cc_table(engine, &table); + init_l3cc_table(engine->uncore, &table); } static u32 global_mocs_offset(void) @@ -504,6 +616,14 @@ static u32 global_mocs_offset(void) return i915_mmio_reg_offset(GEN12_GLOBAL_MOCS(0)); } +void intel_set_mocs_index(struct intel_gt *gt) +{ + struct drm_i915_mocs_table table; + + get_mocs_settings(gt->i915, &table); + gt->mocs.uc_index = table.uc_index; +} + void intel_mocs_init(struct intel_gt *gt) { struct drm_i915_mocs_table table; @@ -515,6 +635,14 @@ void intel_mocs_init(struct intel_gt *gt) flags = get_mocs_settings(gt->i915, &table); if (flags & HAS_GLOBAL_MOCS) __init_mocs_table(gt->uncore, &table, global_mocs_offset()); + + /* + * Initialize the L3CC table as part of mocs initalization to make + * sure the LNCFCMOCSx registers are programmed for the subsequent + * memory transactions including guc transactions + */ + if (flags & HAS_RENDER_L3CC) + init_l3cc_table(gt->uncore, &table); } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.h b/drivers/gpu/drm/i915/gt/intel_mocs.h index d83274f5163b..76db827210c0 100644 --- a/drivers/gpu/drm/i915/gt/intel_mocs.h +++ b/drivers/gpu/drm/i915/gt/intel_mocs.h @@ -36,5 +36,6 @@ struct intel_gt; void intel_mocs_init(struct intel_gt *gt); void intel_mocs_init_engine(struct intel_engine_cs *engine); +void intel_set_mocs_index(struct intel_gt *gt); #endif diff --git a/drivers/gpu/drm/i915/gt/intel_ppgtt.c b/drivers/gpu/drm/i915/gt/intel_ppgtt.c index 886060f7e6fc..4396bfd630d8 100644 --- a/drivers/gpu/drm/i915/gt/intel_ppgtt.c +++ b/drivers/gpu/drm/i915/gt/intel_ppgtt.c @@ -155,19 +155,20 @@ int i915_ppgtt_init_hw(struct intel_gt *gt) } static struct i915_ppgtt * -__ppgtt_create(struct intel_gt *gt) +__ppgtt_create(struct intel_gt *gt, unsigned long lmem_pt_obj_flags) { if (GRAPHICS_VER(gt->i915) < 8) return gen6_ppgtt_create(gt); else - return gen8_ppgtt_create(gt); + return gen8_ppgtt_create(gt, lmem_pt_obj_flags); } -struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt) +struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt, + unsigned long lmem_pt_obj_flags) { struct i915_ppgtt *ppgtt; - ppgtt = __ppgtt_create(gt); + ppgtt = __ppgtt_create(gt, lmem_pt_obj_flags); if (IS_ERR(ppgtt)) return ppgtt; @@ -298,7 +299,8 @@ int ppgtt_set_pages(struct i915_vma *vma) return 0; } -void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt) +void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt, + unsigned long lmem_pt_obj_flags) { struct drm_i915_private *i915 = gt->i915; @@ -306,6 +308,7 @@ void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt) ppgtt->vm.i915 = i915; ppgtt->vm.dma = i915->drm.dev; ppgtt->vm.total = BIT_ULL(INTEL_INFO(i915)->ppgtt_size); + ppgtt->vm.lmem_pt_obj_flags = lmem_pt_obj_flags; dma_resv_init(&ppgtt->vm._resv); i915_address_space_init(&ppgtt->vm, VM_CLASS_PPGTT); diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index a74b72f50cc9..afb35d2e5c73 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -32,7 +32,7 @@ static int init_fake_lmem_bar(struct intel_memory_region *mem) mem->remap_addr = dma_map_resource(i915->drm.dev, mem->region.start, mem->fake_mappable.size, - PCI_DMA_BIDIRECTIONAL, + DMA_BIDIRECTIONAL, DMA_ATTR_FORCE_CONTIGUOUS); if (dma_mapping_error(i915->drm.dev, mem->remap_addr)) { drm_mm_remove_node(&mem->fake_mappable); @@ -62,7 +62,7 @@ static void release_fake_lmem_bar(struct intel_memory_region *mem) dma_unmap_resource(mem->i915->drm.dev, mem->remap_addr, mem->fake_mappable.size, - PCI_DMA_BIDIRECTIONAL, + DMA_BIDIRECTIONAL, DMA_ATTR_FORCE_CONTIGUOUS); } diff --git a/drivers/gpu/drm/i915/gt/intel_ring.c b/drivers/gpu/drm/i915/gt/intel_ring.c index 7c4d5158e03b..2fdd52b62092 100644 --- a/drivers/gpu/drm/i915/gt/intel_ring.c +++ b/drivers/gpu/drm/i915/gt/intel_ring.c @@ -112,7 +112,8 @@ static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size) struct drm_i915_gem_object *obj; struct i915_vma *vma; - obj = i915_gem_object_create_lmem(i915, size, I915_BO_ALLOC_VOLATILE); + obj = i915_gem_object_create_lmem(i915, size, I915_BO_ALLOC_VOLATILE | + I915_BO_ALLOC_PM_VOLATILE); if (IS_ERR(obj) && i915_ggtt_has_aperture(ggtt)) obj = i915_gem_object_create_stolen(i915, size); if (IS_ERR(obj)) diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c index 2958e2fae380..593524195707 100644 --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c @@ -17,6 +17,7 @@ #include "intel_ring.h" #include "shmem_utils.h" #include "intel_engine_heartbeat.h" +#include "intel_engine_pm.h" /* Rough estimate of the typical request size, performing a flush, * set-context and then emitting the batch. @@ -292,6 +293,8 @@ static void xcs_sanitize(struct intel_engine_cs *engine) /* And scrub the dirty cachelines for the HWSP */ clflush_cache_range(engine->status_page.addr, PAGE_SIZE); + + intel_engine_reset_pinned_contexts(engine); } static void reset_prepare(struct intel_engine_cs *engine) @@ -1265,7 +1268,7 @@ static struct i915_vma *gen7_ctx_vma(struct intel_engine_cs *engine) int size, err; if (GRAPHICS_VER(engine->i915) != 7 || engine->class != RENDER_CLASS) - return 0; + return NULL; err = gen7_ctx_switch_bb_setup(engine, NULL /* probe size */); if (err < 0) diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c index 591a5224287e..172de6c9f949 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.c +++ b/drivers/gpu/drm/i915/gt/intel_rps.c @@ -882,8 +882,6 @@ void intel_rps_park(struct intel_rps *rps) if (!intel_rps_is_enabled(rps)) return; - GEM_BUG_ON(atomic_read(&rps->num_waiters)); - if (!intel_rps_clear_active(rps)) return; @@ -996,20 +994,16 @@ int intel_rps_set(struct intel_rps *rps, u8 val) static void gen6_rps_init(struct intel_rps *rps) { struct drm_i915_private *i915 = rps_to_i915(rps); - struct intel_uncore *uncore = rps_to_uncore(rps); + u32 rp_state_cap = intel_rps_read_state_cap(rps); /* All of these values are in units of 50MHz */ /* static values from HW: RP0 > RP1 > RPn (min_freq) */ if (IS_GEN9_LP(i915)) { - u32 rp_state_cap = intel_uncore_read(uncore, BXT_RP_STATE_CAP); - rps->rp0_freq = (rp_state_cap >> 16) & 0xff; rps->rp1_freq = (rp_state_cap >> 8) & 0xff; rps->min_freq = (rp_state_cap >> 0) & 0xff; } else { - u32 rp_state_cap = intel_uncore_read(uncore, GEN6_RP_STATE_CAP); - rps->rp0_freq = (rp_state_cap >> 0) & 0xff; rps->rp1_freq = (rp_state_cap >> 8) & 0xff; rps->min_freq = (rp_state_cap >> 16) & 0xff; @@ -2146,6 +2140,19 @@ int intel_rps_set_min_frequency(struct intel_rps *rps, u32 val) return set_min_freq(rps, val); } +u32 intel_rps_read_state_cap(struct intel_rps *rps) +{ + struct drm_i915_private *i915 = rps_to_i915(rps); + struct intel_uncore *uncore = rps_to_uncore(rps); + + if (IS_XEHPSDV(i915)) + return intel_uncore_read(uncore, XEHPSDV_RP_STATE_CAP); + else if (IS_GEN9_LP(i915)) + return intel_uncore_read(uncore, BXT_RP_STATE_CAP); + else + return intel_uncore_read(uncore, GEN6_RP_STATE_CAP); +} + /* External interface for intel_ips.ko */ static struct drm_i915_private __rcu *ips_mchdev; diff --git a/drivers/gpu/drm/i915/gt/intel_rps.h b/drivers/gpu/drm/i915/gt/intel_rps.h index 4213bcce1667..11960d64ca82 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.h +++ b/drivers/gpu/drm/i915/gt/intel_rps.h @@ -41,6 +41,7 @@ u32 intel_rps_get_rp1_frequency(struct intel_rps *rps); u32 intel_rps_get_rpn_frequency(struct intel_rps *rps); u32 intel_rps_read_punit_req(struct intel_rps *rps); u32 intel_rps_read_punit_req_frequency(struct intel_rps *rps); +u32 intel_rps_read_state_cap(struct intel_rps *rps); void gen5_rps_irq_handler(struct intel_rps *rps); void gen6_rps_irq_handler(struct intel_rps *rps, u32 pm_iir); diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.c b/drivers/gpu/drm/i915/gt/intel_sseu.c index bbd272943c3f..bdf09051b8a0 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu.c @@ -46,11 +46,11 @@ u32 intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u8 slice) } void intel_sseu_set_subslices(struct sseu_dev_info *sseu, int slice, - u32 ss_mask) + u8 *subslice_mask, u32 ss_mask) { int offset = slice * sseu->ss_stride; - memcpy(&sseu->subslice_mask[offset], &ss_mask, sseu->ss_stride); + memcpy(&subslice_mask[offset], &ss_mask, sseu->ss_stride); } unsigned int @@ -100,14 +100,24 @@ static u16 compute_eu_total(const struct sseu_dev_info *sseu) return total; } -static void gen11_compute_sseu_info(struct sseu_dev_info *sseu, - u8 s_en, u32 ss_en, u16 eu_en) +static u32 get_ss_stride_mask(struct sseu_dev_info *sseu, u8 s, u32 ss_en) +{ + u32 ss_mask; + + ss_mask = ss_en >> (s * sseu->max_subslices); + ss_mask &= GENMASK(sseu->max_subslices - 1, 0); + + return ss_mask; +} + +static void gen11_compute_sseu_info(struct sseu_dev_info *sseu, u8 s_en, + u32 g_ss_en, u32 c_ss_en, u16 eu_en) { int s, ss; - /* ss_en represents entire subslice mask across all slices */ + /* g_ss_en/c_ss_en represent entire subslice mask across all slices */ GEM_BUG_ON(sseu->max_slices * sseu->max_subslices > - sizeof(ss_en) * BITS_PER_BYTE); + sizeof(g_ss_en) * BITS_PER_BYTE); for (s = 0; s < sseu->max_slices; s++) { if ((s_en & BIT(s)) == 0) @@ -115,7 +125,22 @@ static void gen11_compute_sseu_info(struct sseu_dev_info *sseu, sseu->slice_mask |= BIT(s); - intel_sseu_set_subslices(sseu, s, ss_en); + /* + * XeHP introduces the concept of compute vs geometry DSS. To + * reduce variation between GENs around subslice usage, store a + * mask for both the geometry and compute enabled masks since + * userspace will need to be able to query these masks + * independently. Also compute a total enabled subslice count + * for the purposes of selecting subslices to use in a + * particular GEM context. + */ + intel_sseu_set_subslices(sseu, s, sseu->compute_subslice_mask, + get_ss_stride_mask(sseu, s, c_ss_en)); + intel_sseu_set_subslices(sseu, s, sseu->geometry_subslice_mask, + get_ss_stride_mask(sseu, s, g_ss_en)); + intel_sseu_set_subslices(sseu, s, sseu->subslice_mask, + get_ss_stride_mask(sseu, s, + g_ss_en | c_ss_en)); for (ss = 0; ss < sseu->max_subslices; ss++) if (intel_sseu_has_subslice(sseu, s, ss)) @@ -129,7 +154,7 @@ static void gen12_sseu_info_init(struct intel_gt *gt) { struct sseu_dev_info *sseu = >->info.sseu; struct intel_uncore *uncore = gt->uncore; - u32 dss_en; + u32 g_dss_en, c_dss_en = 0; u16 eu_en = 0; u8 eu_en_fuse; u8 s_en; @@ -160,7 +185,9 @@ static void gen12_sseu_info_init(struct intel_gt *gt) s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) & GEN11_GT_S_ENA_MASK; - dss_en = intel_uncore_read(uncore, GEN12_GT_DSS_ENABLE); + g_dss_en = intel_uncore_read(uncore, GEN12_GT_GEOMETRY_DSS_ENABLE); + if (GRAPHICS_VER_FULL(gt->i915) >= IP_VER(12, 50)) + c_dss_en = intel_uncore_read(uncore, GEN12_GT_COMPUTE_DSS_ENABLE); /* one bit per pair of EUs */ if (GRAPHICS_VER_FULL(gt->i915) >= IP_VER(12, 50)) @@ -173,7 +200,7 @@ static void gen12_sseu_info_init(struct intel_gt *gt) if (eu_en_fuse & BIT(eu)) eu_en |= BIT(eu * 2) | BIT(eu * 2 + 1); - gen11_compute_sseu_info(sseu, s_en, dss_en, eu_en); + gen11_compute_sseu_info(sseu, s_en, g_dss_en, c_dss_en, eu_en); /* TGL only supports slice-level power gating */ sseu->has_slice_pg = 1; @@ -199,7 +226,7 @@ static void gen11_sseu_info_init(struct intel_gt *gt) eu_en = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) & GEN11_EU_DIS_MASK); - gen11_compute_sseu_info(sseu, s_en, ss_en, eu_en); + gen11_compute_sseu_info(sseu, s_en, ss_en, 0, eu_en); /* ICL has no power gating restrictions. */ sseu->has_slice_pg = 1; @@ -240,7 +267,7 @@ static void cherryview_sseu_info_init(struct intel_gt *gt) sseu_set_eus(sseu, 0, 1, ~disabled_mask); } - intel_sseu_set_subslices(sseu, 0, subslice_mask); + intel_sseu_set_subslices(sseu, 0, sseu->subslice_mask, subslice_mask); sseu->eu_total = compute_eu_total(sseu); @@ -296,7 +323,8 @@ static void gen9_sseu_info_init(struct intel_gt *gt) /* skip disabled slice */ continue; - intel_sseu_set_subslices(sseu, s, subslice_mask); + intel_sseu_set_subslices(sseu, s, sseu->subslice_mask, + subslice_mask); eu_disable = intel_uncore_read(uncore, GEN9_EU_DISABLE(s)); for (ss = 0; ss < sseu->max_subslices; ss++) { @@ -408,7 +436,8 @@ static void bdw_sseu_info_init(struct intel_gt *gt) /* skip disabled slice */ continue; - intel_sseu_set_subslices(sseu, s, subslice_mask); + intel_sseu_set_subslices(sseu, s, sseu->subslice_mask, + subslice_mask); for (ss = 0; ss < sseu->max_subslices; ss++) { u8 eu_disabled_mask; @@ -485,10 +514,9 @@ static void hsw_sseu_info_init(struct intel_gt *gt) } fuse1 = intel_uncore_read(gt->uncore, HSW_PAVP_FUSE1); - switch ((fuse1 & HSW_F1_EU_DIS_MASK) >> HSW_F1_EU_DIS_SHIFT) { + switch (REG_FIELD_GET(HSW_F1_EU_DIS_MASK, fuse1)) { default: - MISSING_CASE((fuse1 & HSW_F1_EU_DIS_MASK) >> - HSW_F1_EU_DIS_SHIFT); + MISSING_CASE(REG_FIELD_GET(HSW_F1_EU_DIS_MASK, fuse1)); fallthrough; case HSW_F1_EU_DIS_10EUS: sseu->eu_per_subslice = 10; @@ -506,7 +534,8 @@ static void hsw_sseu_info_init(struct intel_gt *gt) sseu->eu_per_subslice); for (s = 0; s < sseu->max_slices; s++) { - intel_sseu_set_subslices(sseu, s, subslice_mask); + intel_sseu_set_subslices(sseu, s, sseu->subslice_mask, + subslice_mask); for (ss = 0; ss < sseu->max_subslices; ss++) { sseu_set_eus(sseu, s, ss, diff --git a/drivers/gpu/drm/i915/gt/intel_sseu.h b/drivers/gpu/drm/i915/gt/intel_sseu.h index 22fef98887c0..60882a74741e 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu.h +++ b/drivers/gpu/drm/i915/gt/intel_sseu.h @@ -26,9 +26,14 @@ struct drm_printer; #define GEN_DSS_PER_CSLICE 8 #define GEN_DSS_PER_MSLICE 8 +#define GEN_MAX_GSLICES (GEN_MAX_SUBSLICES / GEN_DSS_PER_GSLICE) +#define GEN_MAX_CSLICES (GEN_MAX_SUBSLICES / GEN_DSS_PER_CSLICE) + struct sseu_dev_info { u8 slice_mask; u8 subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; + u8 geometry_subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; + u8 compute_subslice_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICE_STRIDE]; u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES * GEN_MAX_EU_STRIDE]; u16 eu_total; u8 eu_per_subslice; @@ -78,6 +83,10 @@ intel_sseu_has_subslice(const struct sseu_dev_info *sseu, int slice, u8 mask; int ss_idx = subslice / BITS_PER_BYTE; + if (slice >= sseu->max_slices || + subslice >= sseu->max_subslices) + return false; + GEM_BUG_ON(ss_idx >= sseu->ss_stride); mask = sseu->subslice_mask[slice * sseu->ss_stride + ss_idx]; @@ -97,7 +106,7 @@ intel_sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 slice); u32 intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u8 slice); void intel_sseu_set_subslices(struct sseu_dev_info *sseu, int slice, - u32 ss_mask); + u8 *subslice_mask, u32 ss_mask); void intel_sseu_info_init(struct intel_gt *gt); diff --git a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c index 1ba8b7da9d37..8bb3a91dad82 100644 --- a/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_sseu_debugfs.c @@ -4,9 +4,9 @@ * Copyright © 2020 Intel Corporation */ -#include "debugfs_gt.h" -#include "intel_sseu_debugfs.h" #include "i915_drv.h" +#include "intel_gt_debugfs.h" +#include "intel_sseu_debugfs.h" static void sseu_copy_subslices(const struct sseu_dev_info *sseu, int slice, u8 *to_mask) @@ -282,7 +282,7 @@ static int sseu_status_show(struct seq_file *m, void *unused) return intel_sseu_status(m, gt); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(sseu_status); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(sseu_status); static int rcs_topology_show(struct seq_file *m, void *unused) { @@ -293,11 +293,11 @@ static int rcs_topology_show(struct seq_file *m, void *unused) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(rcs_topology); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(rcs_topology); void intel_sseu_debugfs_register(struct intel_gt *gt, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "sseu_status", &sseu_status_fops, NULL }, { "rcs_topology", &rcs_topology_fops, NULL }, }; diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index aae609d7d85d..e1f362530889 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -644,6 +644,72 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine, DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE); } +static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine, + struct i915_wa_list *wal) +{ + /* + * This is a "fake" workaround defined by software to ensure we + * maintain reliable, backward-compatible behavior for userspace with + * regards to how nested MI_BATCH_BUFFER_START commands are handled. + * + * The per-context setting of MI_MODE[12] determines whether the bits + * of a nested MI_BATCH_BUFFER_START instruction should be interpreted + * in the traditional manner or whether they should instead use a new + * tgl+ meaning that breaks backward compatibility, but allows nesting + * into 3rd-level batchbuffers. When this new capability was first + * added in TGL, it remained off by default unless a context + * intentionally opted in to the new behavior. However Xe_HPG now + * flips this on by default and requires that we explicitly opt out if + * we don't want the new behavior. + * + * From a SW perspective, we want to maintain the backward-compatible + * behavior for userspace, so we'll apply a fake workaround to set it + * back to the legacy behavior on platforms where the hardware default + * is to break compatibility. At the moment there is no Linux + * userspace that utilizes third-level batchbuffers, so this will avoid + * userspace from needing to make any changes. using the legacy + * meaning is the correct thing to do. If/when we have userspace + * consumers that want to utilize third-level batch nesting, we can + * provide a context parameter to allow them to opt-in. + */ + wa_masked_dis(wal, RING_MI_MODE(engine->mmio_base), TGL_NESTED_BB_EN); +} + +static void gen12_ctx_gt_mocs_init(struct intel_engine_cs *engine, + struct i915_wa_list *wal) +{ + u8 mocs; + + /* + * Some blitter commands do not have a field for MOCS, those + * commands will use MOCS index pointed by BLIT_CCTL. + * BLIT_CCTL registers are needed to be programmed to un-cached. + */ + if (engine->class == COPY_ENGINE_CLASS) { + mocs = engine->gt->mocs.uc_index; + wa_write_clr_set(wal, + BLIT_CCTL(engine->mmio_base), + BLIT_CCTL_MASK, + BLIT_CCTL_MOCS(mocs, mocs)); + } +} + +/* + * gen12_ctx_gt_fake_wa_init() aren't programmingan official workaround + * defined by the hardware team, but it programming general context registers. + * Adding those context register programming in context workaround + * allow us to use the wa framework for proper application and validation. + */ +static void +gen12_ctx_gt_fake_wa_init(struct intel_engine_cs *engine, + struct i915_wa_list *wal) +{ + if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55)) + fakewa_disable_nestedbb_mode(engine, wal); + + gen12_ctx_gt_mocs_init(engine, wal); +} + static void __intel_engine_init_ctx_wa(struct intel_engine_cs *engine, struct i915_wa_list *wal, @@ -651,11 +717,19 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine, { struct drm_i915_private *i915 = engine->i915; - if (engine->class != RENDER_CLASS) - return; - wa_init_start(wal, name, engine->name); + /* Applies to all engines */ + /* + * Fake workarounds are not the actual workaround but + * programming of context registers using workaround framework. + */ + if (GRAPHICS_VER(i915) >= 12) + gen12_ctx_gt_fake_wa_init(engine, wal); + + if (engine->class != RENDER_CLASS) + goto done; + if (IS_DG1(i915)) dg1_ctx_workarounds_init(engine, wal); else if (GRAPHICS_VER(i915) == 12) @@ -685,6 +759,7 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine, else MISSING_CASE(GRAPHICS_VER(i915)); +done: wa_init_finish(wal); } @@ -729,7 +804,7 @@ int intel_engine_emit_ctx_wa(struct i915_request *rq) } static void -gen4_gt_workarounds_init(struct drm_i915_private *i915, +gen4_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { /* WaDisable_RenderCache_OperationalFlush:gen4,ilk */ @@ -737,29 +812,29 @@ gen4_gt_workarounds_init(struct drm_i915_private *i915, } static void -g4x_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +g4x_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen4_gt_workarounds_init(i915, wal); + gen4_gt_workarounds_init(gt, wal); /* WaDisableRenderCachePipelinedFlush:g4x,ilk */ wa_masked_en(wal, CACHE_MODE_0, CM0_PIPELINED_RENDER_FLUSH_DISABLE); } static void -ilk_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +ilk_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - g4x_gt_workarounds_init(i915, wal); + g4x_gt_workarounds_init(gt, wal); wa_masked_en(wal, _3D_CHICKEN2, _3D_CHICKEN2_WM_READ_PIPELINED); } static void -snb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +snb_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { } static void -ivb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +ivb_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { /* Apply the WaDisableRHWOOptimizationForRenderHang:ivb workaround. */ wa_masked_dis(wal, @@ -775,7 +850,7 @@ ivb_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -vlv_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +vlv_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { /* WaForceL3Serialization:vlv */ wa_write_clr(wal, GEN7_L3SQCREG4, L3SQ_URB_READ_CAM_MATCH_DISABLE); @@ -788,7 +863,7 @@ vlv_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -hsw_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +hsw_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { /* L3 caching of data atomics doesn't work -- disable it. */ wa_write(wal, HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE); @@ -803,8 +878,10 @@ hsw_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -gen9_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +gen9_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { + struct drm_i915_private *i915 = gt->i915; + /* WaDisableKillLogic:bxt,skl,kbl */ if (!IS_COFFEELAKE(i915) && !IS_COMETLAKE(i915)) wa_write_or(wal, @@ -829,9 +906,9 @@ gen9_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal } static void -skl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +skl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen9_gt_workarounds_init(i915, wal); + gen9_gt_workarounds_init(gt, wal); /* WaDisableGafsUnitClkGating:skl */ wa_write_or(wal, @@ -839,19 +916,19 @@ skl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE); /* WaInPlaceDecompressionHang:skl */ - if (IS_SKL_GT_STEP(i915, STEP_A0, STEP_H0)) + if (IS_SKL_GT_STEP(gt->i915, STEP_A0, STEP_H0)) wa_write_or(wal, GEN9_GAMT_ECO_REG_RW_IA, GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS); } static void -kbl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +kbl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen9_gt_workarounds_init(i915, wal); + gen9_gt_workarounds_init(gt, wal); /* WaDisableDynamicCreditSharing:kbl */ - if (IS_KBL_GT_STEP(i915, 0, STEP_C0)) + if (IS_KBL_GT_STEP(gt->i915, 0, STEP_C0)) wa_write_or(wal, GAMT_CHKN_BIT_REG, GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING); @@ -868,15 +945,15 @@ kbl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -glk_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +glk_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen9_gt_workarounds_init(i915, wal); + gen9_gt_workarounds_init(gt, wal); } static void -cfl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +cfl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen9_gt_workarounds_init(i915, wal); + gen9_gt_workarounds_init(gt, wal); /* WaDisableGafsUnitClkGating:cfl */ wa_write_or(wal, @@ -901,21 +978,21 @@ static void __set_mcr_steering(struct i915_wa_list *wal, wa_write_clr_set(wal, steering_reg, mcr_mask, mcr); } -static void __add_mcr_wa(struct drm_i915_private *i915, struct i915_wa_list *wal, +static void __add_mcr_wa(struct intel_gt *gt, struct i915_wa_list *wal, unsigned int slice, unsigned int subslice) { - drm_dbg(&i915->drm, "MCR slice=0x%x, subslice=0x%x\n", slice, subslice); + drm_dbg(>->i915->drm, "MCR slice=0x%x, subslice=0x%x\n", slice, subslice); __set_mcr_steering(wal, GEN8_MCR_SELECTOR, slice, subslice); } static void -icl_wa_init_mcr(struct drm_i915_private *i915, struct i915_wa_list *wal) +icl_wa_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal) { - const struct sseu_dev_info *sseu = &i915->gt.info.sseu; + const struct sseu_dev_info *sseu = >->info.sseu; unsigned int slice, subslice; - GEM_BUG_ON(GRAPHICS_VER(i915) < 11); + GEM_BUG_ON(GRAPHICS_VER(gt->i915) < 11); GEM_BUG_ON(hweight8(sseu->slice_mask) > 1); slice = 0; @@ -935,16 +1012,15 @@ icl_wa_init_mcr(struct drm_i915_private *i915, struct i915_wa_list *wal) * then we can just rely on the default steering and won't need to * worry about explicitly re-steering L3BANK reads later. */ - if (i915->gt.info.l3bank_mask & BIT(subslice)) - i915->gt.steering_table[L3BANK] = NULL; + if (gt->info.l3bank_mask & BIT(subslice)) + gt->steering_table[L3BANK] = NULL; - __add_mcr_wa(i915, wal, slice, subslice); + __add_mcr_wa(gt, wal, slice, subslice); } static void xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal) { - struct drm_i915_private *i915 = gt->i915; const struct sseu_dev_info *sseu = >->info.sseu; unsigned long slice, subslice = 0, slice_mask = 0; u64 dss_mask = 0; @@ -1008,7 +1084,7 @@ xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal) WARN_ON(subslice > GEN_DSS_PER_GSLICE); WARN_ON(dss_mask >> (slice * GEN_DSS_PER_GSLICE) == 0); - __add_mcr_wa(i915, wal, slice, subslice); + __add_mcr_wa(gt, wal, slice, subslice); /* * SQIDI ranges are special because they use different steering @@ -1024,9 +1100,11 @@ xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal) } static void -icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +icl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - icl_wa_init_mcr(i915, wal); + struct drm_i915_private *i915 = gt->i915; + + icl_wa_init_mcr(gt, wal); /* WaModifyGamTlbPartitioning:icl */ wa_write_clr_set(wal, @@ -1077,10 +1155,9 @@ icl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) * the engine-specific workaround list. */ static void -wa_14011060649(struct drm_i915_private *i915, struct i915_wa_list *wal) +wa_14011060649(struct intel_gt *gt, struct i915_wa_list *wal) { struct intel_engine_cs *engine; - struct intel_gt *gt = &i915->gt; int id; for_each_engine(engine, gt, id) { @@ -1094,22 +1171,23 @@ wa_14011060649(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -gen12_gt_workarounds_init(struct drm_i915_private *i915, - struct i915_wa_list *wal) +gen12_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - icl_wa_init_mcr(i915, wal); + icl_wa_init_mcr(gt, wal); /* Wa_14011060649:tgl,rkl,dg1,adl-s,adl-p */ - wa_14011060649(i915, wal); + wa_14011060649(gt, wal); /* Wa_14011059788:tgl,rkl,adl-s,dg1,adl-p */ wa_write_or(wal, GEN10_DFR_RATIO_EN_AND_CHICKEN, DFR_DISABLE); } static void -tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +tgl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen12_gt_workarounds_init(i915, wal); + struct drm_i915_private *i915 = gt->i915; + + gen12_gt_workarounds_init(gt, wal); /* Wa_1409420604:tgl */ if (IS_TGL_UY_GT_STEP(i915, STEP_A0, STEP_B0)) @@ -1130,9 +1208,11 @@ tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -dg1_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +dg1_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - gen12_gt_workarounds_init(i915, wal); + struct drm_i915_private *i915 = gt->i915; + + gen12_gt_workarounds_init(gt, wal); /* Wa_1607087056:dg1 */ if (IS_DG1_GT_STEP(i915, STEP_A0, STEP_B0)) @@ -1154,60 +1234,62 @@ dg1_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) } static void -xehpsdv_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal) +xehpsdv_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) { - xehp_init_mcr(&i915->gt, wal); + xehp_init_mcr(gt, wal); } static void -gt_init_workarounds(struct drm_i915_private *i915, struct i915_wa_list *wal) +gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal) { + struct drm_i915_private *i915 = gt->i915; + if (IS_XEHPSDV(i915)) - xehpsdv_gt_workarounds_init(i915, wal); + xehpsdv_gt_workarounds_init(gt, wal); else if (IS_DG1(i915)) - dg1_gt_workarounds_init(i915, wal); + dg1_gt_workarounds_init(gt, wal); else if (IS_TIGERLAKE(i915)) - tgl_gt_workarounds_init(i915, wal); + tgl_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) == 12) - gen12_gt_workarounds_init(i915, wal); + gen12_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) == 11) - icl_gt_workarounds_init(i915, wal); + icl_gt_workarounds_init(gt, wal); else if (IS_COFFEELAKE(i915) || IS_COMETLAKE(i915)) - cfl_gt_workarounds_init(i915, wal); + cfl_gt_workarounds_init(gt, wal); else if (IS_GEMINILAKE(i915)) - glk_gt_workarounds_init(i915, wal); + glk_gt_workarounds_init(gt, wal); else if (IS_KABYLAKE(i915)) - kbl_gt_workarounds_init(i915, wal); + kbl_gt_workarounds_init(gt, wal); else if (IS_BROXTON(i915)) - gen9_gt_workarounds_init(i915, wal); + gen9_gt_workarounds_init(gt, wal); else if (IS_SKYLAKE(i915)) - skl_gt_workarounds_init(i915, wal); + skl_gt_workarounds_init(gt, wal); else if (IS_HASWELL(i915)) - hsw_gt_workarounds_init(i915, wal); + hsw_gt_workarounds_init(gt, wal); else if (IS_VALLEYVIEW(i915)) - vlv_gt_workarounds_init(i915, wal); + vlv_gt_workarounds_init(gt, wal); else if (IS_IVYBRIDGE(i915)) - ivb_gt_workarounds_init(i915, wal); + ivb_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) == 6) - snb_gt_workarounds_init(i915, wal); + snb_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) == 5) - ilk_gt_workarounds_init(i915, wal); + ilk_gt_workarounds_init(gt, wal); else if (IS_G4X(i915)) - g4x_gt_workarounds_init(i915, wal); + g4x_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) == 4) - gen4_gt_workarounds_init(i915, wal); + gen4_gt_workarounds_init(gt, wal); else if (GRAPHICS_VER(i915) <= 8) ; else MISSING_CASE(GRAPHICS_VER(i915)); } -void intel_gt_init_workarounds(struct drm_i915_private *i915) +void intel_gt_init_workarounds(struct intel_gt *gt) { - struct i915_wa_list *wal = &i915->gt_wa_list; + struct i915_wa_list *wal = >->wa_list; wa_init_start(wal, "GT", "global"); - gt_init_workarounds(i915, wal); + gt_init_workarounds(gt, wal); wa_init_finish(wal); } @@ -1278,7 +1360,7 @@ wa_list_apply(struct intel_gt *gt, const struct i915_wa_list *wal) void intel_gt_apply_workarounds(struct intel_gt *gt) { - wa_list_apply(gt, >->i915->gt_wa_list); + wa_list_apply(gt, >->wa_list); } static bool wa_list_verify(struct intel_gt *gt, @@ -1310,7 +1392,7 @@ static bool wa_list_verify(struct intel_gt *gt, bool intel_gt_verify_workarounds(struct intel_gt *gt, const char *from) { - return wa_list_verify(gt, >->i915->gt_wa_list, from); + return wa_list_verify(gt, >->wa_list, from); } __maybe_unused @@ -1604,6 +1686,31 @@ void intel_engine_apply_whitelist(struct intel_engine_cs *engine) i915_mmio_reg_offset(RING_NOPID(base))); } +/* + * engine_fake_wa_init(), a place holder to program the registers + * which are not part of an official workaround defined by the + * hardware team. + * Adding programming of those register inside workaround will + * allow utilizing wa framework to proper application and verification. + */ +static void +engine_fake_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) +{ + u8 mocs; + + /* + * RING_CMD_CCTL are need to be programed to un-cached + * for memory writes and reads outputted by Command + * Streamers on Gen12 onward platforms. + */ + if (GRAPHICS_VER(engine->i915) >= 12) { + mocs = engine->gt->mocs.uc_index; + wa_masked_field_set(wal, + RING_CMD_CCTL(engine->mmio_base), + CMD_CCTL_MOCS_MASK, + CMD_CCTL_MOCS_OVERRIDE(mocs, mocs)); + } +} static void rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) { @@ -2044,6 +2151,8 @@ engine_init_workarounds(struct intel_engine_cs *engine, struct i915_wa_list *wal if (I915_SELFTEST_ONLY(GRAPHICS_VER(engine->i915) < 4)) return; + engine_fake_wa_init(engine, wal); + if (engine->class == RENDER_CLASS) rcs_engine_wa_init(engine, wal); else @@ -2067,12 +2176,7 @@ void intel_engine_apply_workarounds(struct intel_engine_cs *engine) wa_list_apply(engine->gt, &engine->wa_list); } -struct mcr_range { - u32 start; - u32 end; -}; - -static const struct mcr_range mcr_ranges_gen8[] = { +static const struct i915_range mcr_ranges_gen8[] = { { .start = 0x5500, .end = 0x55ff }, { .start = 0x7000, .end = 0x7fff }, { .start = 0x9400, .end = 0x97ff }, @@ -2081,7 +2185,7 @@ static const struct mcr_range mcr_ranges_gen8[] = { {}, }; -static const struct mcr_range mcr_ranges_gen12[] = { +static const struct i915_range mcr_ranges_gen12[] = { { .start = 0x8150, .end = 0x815f }, { .start = 0x9520, .end = 0x955f }, { .start = 0xb100, .end = 0xb3ff }, @@ -2090,7 +2194,7 @@ static const struct mcr_range mcr_ranges_gen12[] = { {}, }; -static const struct mcr_range mcr_ranges_xehp[] = { +static const struct i915_range mcr_ranges_xehp[] = { { .start = 0x4000, .end = 0x4aff }, { .start = 0x5200, .end = 0x52ff }, { .start = 0x5400, .end = 0x7fff }, @@ -2109,7 +2213,7 @@ static const struct mcr_range mcr_ranges_xehp[] = { static bool mcr_range(struct drm_i915_private *i915, u32 offset) { - const struct mcr_range *mcr_ranges; + const struct i915_range *mcr_ranges; int i; if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.h b/drivers/gpu/drm/i915/gt/intel_workarounds.h index 15abb68b6c00..9beaab77c7f0 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.h +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.h @@ -24,7 +24,7 @@ static inline void intel_wa_list_free(struct i915_wa_list *wal) void intel_engine_init_ctx_wa(struct intel_engine_cs *engine); int intel_engine_emit_ctx_wa(struct i915_request *rq); -void intel_gt_init_workarounds(struct drm_i915_private *i915); +void intel_gt_init_workarounds(struct intel_gt *gt); void intel_gt_apply_workarounds(struct intel_gt *gt); bool intel_gt_verify_workarounds(struct intel_gt *gt, const char *from); diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c index 2c1af030310c..8b89215afe46 100644 --- a/drivers/gpu/drm/i915/gt/mock_engine.c +++ b/drivers/gpu/drm/i915/gt/mock_engine.c @@ -376,6 +376,8 @@ int mock_engine_init(struct intel_engine_cs *engine) { struct intel_context *ce; + INIT_LIST_HEAD(&engine->pinned_contexts_list); + engine->sched_engine = i915_sched_engine_create(ENGINE_MOCK); if (!engine->sched_engine) return -ENOMEM; diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c index 317eebf086c3..6e6e4d747cca 100644 --- a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c @@ -290,7 +290,7 @@ static int live_heartbeat_fast(void *arg) int err = 0; /* Check that the heartbeat ticks at the desired rate. */ - if (!IS_ACTIVE(CONFIG_DRM_I915_HEARTBEAT_INTERVAL)) + if (!CONFIG_DRM_I915_HEARTBEAT_INTERVAL) return 0; for_each_engine(engine, gt, id) { @@ -352,7 +352,7 @@ static int live_heartbeat_off(void *arg) int err = 0; /* Check that we can turn off heartbeat and not interrupt VIP */ - if (!IS_ACTIVE(CONFIG_DRM_I915_HEARTBEAT_INTERVAL)) + if (!CONFIG_DRM_I915_HEARTBEAT_INTERVAL) return 0; for_each_engine(engine, gt, id) { diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c index f12ffe797639..25a8c4f62b0d 100644 --- a/drivers/gpu/drm/i915/gt/selftest_execlists.c +++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c @@ -992,7 +992,7 @@ static int live_timeslice_preempt(void *arg) * need to preempt the current task and replace it with another * ready task. */ - if (!IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (!CONFIG_DRM_I915_TIMESLICE_DURATION) return 0; obj = i915_gem_object_create_internal(gt->i915, PAGE_SIZE); @@ -1122,7 +1122,7 @@ static int live_timeslice_rewind(void *arg) * but only a few of those requests, forcing us to rewind the * RING_TAIL of the original request. */ - if (!IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (!CONFIG_DRM_I915_TIMESLICE_DURATION) return 0; for_each_engine(engine, gt, id) { @@ -1299,7 +1299,7 @@ static int live_timeslice_queue(void *arg) * ELSP[1] is already occupied, so must rely on timeslicing to * eject ELSP[0] in favour of the queue.) */ - if (!IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (!CONFIG_DRM_I915_TIMESLICE_DURATION) return 0; obj = i915_gem_object_create_internal(gt->i915, PAGE_SIZE); @@ -1420,7 +1420,7 @@ static int live_timeslice_nopreempt(void *arg) * We should not timeslice into a request that is marked with * I915_REQUEST_NOPREEMPT. */ - if (!IS_ACTIVE(CONFIG_DRM_I915_TIMESLICE_DURATION)) + if (!CONFIG_DRM_I915_TIMESLICE_DURATION) return 0; if (igt_spinner_init(&spin, gt)) @@ -2260,7 +2260,7 @@ static int __cancel_hostile(struct live_preempt_cancel *arg) int err; /* Preempt cancel non-preemptible spinner in ELSP0 */ - if (!IS_ACTIVE(CONFIG_DRM_I915_PREEMPT_TIMEOUT)) + if (!CONFIG_DRM_I915_PREEMPT_TIMEOUT) return 0; if (!intel_has_reset_engine(arg->engine->gt)) @@ -2316,7 +2316,7 @@ static int __cancel_fail(struct live_preempt_cancel *arg) struct i915_request *rq; int err; - if (!IS_ACTIVE(CONFIG_DRM_I915_PREEMPT_TIMEOUT)) + if (!CONFIG_DRM_I915_PREEMPT_TIMEOUT) return 0; if (!intel_has_reset_engine(engine->gt)) @@ -3375,7 +3375,7 @@ static int live_preempt_timeout(void *arg) * Check that we force preemption to occur by cancelling the previous * context if it refuses to yield the GPU. */ - if (!IS_ACTIVE(CONFIG_DRM_I915_PREEMPT_TIMEOUT)) + if (!CONFIG_DRM_I915_PREEMPT_TIMEOUT) return 0; if (!intel_has_reset_engine(gt)) @@ -3493,7 +3493,7 @@ static int smoke_submit(struct preempt_smoke *smoke, if (batch) { struct i915_address_space *vm; - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); vma = i915_vma_instance(batch, vm, NULL); i915_vm_put(vm); if (IS_ERR(vma)) diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c index 2c1ed32ca5ac..7e2d99dd012d 100644 --- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c +++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c @@ -117,7 +117,7 @@ static struct i915_request * hang_create_request(struct hang *h, struct intel_engine_cs *engine) { struct intel_gt *gt = h->gt; - struct i915_address_space *vm = i915_gem_context_get_vm_rcu(h->ctx); + struct i915_address_space *vm = i915_gem_context_get_eb_vm(h->ctx); struct drm_i915_gem_object *obj; struct i915_request *rq = NULL; struct i915_vma *hws, *vma; @@ -789,7 +789,7 @@ static int __igt_reset_engine(struct intel_gt *gt, bool active) if (err) pr_err("[%s] Wait for request %lld:%lld [0x%04X] failed: %d!\n", engine->name, rq->fence.context, - rq->fence.seqno, rq->context->guc_id, err); + rq->fence.seqno, rq->context->guc_id.id, err); } skip: @@ -1098,7 +1098,7 @@ static int __igt_reset_engines(struct intel_gt *gt, if (err) pr_err("[%s] Wait for request %lld:%lld [0x%04X] failed: %d!\n", engine->name, rq->fence.context, - rq->fence.seqno, rq->context->guc_id, err); + rq->fence.seqno, rq->context->guc_id.id, err); } count++; @@ -1108,7 +1108,7 @@ static int __igt_reset_engines(struct intel_gt *gt, pr_err("i915_reset_engine(%s:%s): failed to reset request %lld:%lld [0x%04X]\n", engine->name, test_name, rq->fence.context, - rq->fence.seqno, rq->context->guc_id); + rq->fence.seqno, rq->context->guc_id.id); i915_request_put(rq); GEM_TRACE_DUMP(); @@ -1596,7 +1596,7 @@ static int igt_reset_evict_ppgtt(void *arg) if (INTEL_PPGTT(gt->i915) < INTEL_PPGTT_FULL) return 0; - ppgtt = i915_ppgtt_create(gt); + ppgtt = i915_ppgtt_create(gt, 0); if (IS_ERR(ppgtt)) return PTR_ERR(ppgtt); diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c index e623ac45f4aa..962e91ba3be4 100644 --- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c +++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c @@ -66,7 +66,7 @@ reference_lists_init(struct intel_gt *gt, struct wa_lists *lists) memset(lists, 0, sizeof(*lists)); wa_init_start(&lists->gt_wa_list, "GT_REF", "global"); - gt_init_workarounds(gt->i915, &lists->gt_wa_list); + gt_init_workarounds(gt, &lists->gt_wa_list); wa_init_finish(&lists->gt_wa_list); for_each_engine(engine, gt, id) { diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h index 99e1fad5ca20..c9086a600bce 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_ctb_abi.h @@ -102,11 +102,11 @@ static_assert(sizeof(struct guc_ct_buffer_desc) == 64); * | +-------+--------------------------------------------------------------+ * | | 7:0 | NUM_DWORDS = length (in dwords) of the embedded HXG message | * +---+-------+--------------------------------------------------------------+ - * | 1 | 31:0 | +--------------------------------------------------------+ | - * +---+-------+ | | | - * |...| | | Embedded `HXG Message`_ | | - * +---+-------+ | | | - * | n | 31:0 | +--------------------------------------------------------+ | + * | 1 | 31:0 | | + * +---+-------+ | + * |...| | [Embedded `HXG Message`_] | + * +---+-------+ | + * | n | 31:0 | | * +---+-------+--------------------------------------------------------------+ */ diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h index bbf1ddb77434..9baa3cb07d13 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_communication_mmio_abi.h @@ -38,11 +38,11 @@ * +---+-------+--------------------------------------------------------------+ * | | Bits | Description | * +===+=======+==============================================================+ - * | 0 | 31:0 | +--------------------------------------------------------+ | - * +---+-------+ | | | - * |...| | | Embedded `HXG Message`_ | | - * +---+-------+ | | | - * | n | 31:0 | +--------------------------------------------------------+ | + * | 0 | 31:0 | | + * +---+-------+ | + * |...| | [Embedded `HXG Message`_] | + * +---+-------+ | + * | n | 31:0 | | * +---+-------+--------------------------------------------------------------+ */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index fbfcae727d7f..8f8182bf7c11 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -3,6 +3,7 @@ * Copyright © 2014-2019 Intel Corporation */ +#include "gem/i915_gem_lmem.h" #include "gt/intel_gt.h" #include "gt/intel_gt_irq.h" #include "gt/intel_gt_pm_irq.h" @@ -647,7 +648,14 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size) u64 flags; int ret; - obj = i915_gem_object_create_shmem(gt->i915, size); + if (HAS_LMEM(gt->i915)) + obj = i915_gem_object_create_lmem(gt->i915, size, + I915_BO_ALLOC_CPU_CLEAR | + I915_BO_ALLOC_CONTIGUOUS | + I915_BO_ALLOC_PM_EARLY); + else + obj = i915_gem_object_create_shmem(gt->i915, size); + if (IS_ERR(obj)) return ERR_CAST(obj); diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index 2e27fe59786b..5dd174babf7a 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -22,74 +22,121 @@ struct __guc_ads_blob; -/* - * Top level structure of GuC. It handles firmware loading and manages client - * pool. intel_guc owns a intel_guc_client to replace the legacy ExecList - * submission. +/** + * struct intel_guc - Top level structure of GuC. + * + * It handles firmware loading and manages client pool. intel_guc owns an + * i915_sched_engine for submission. */ struct intel_guc { + /** @fw: the GuC firmware */ struct intel_uc_fw fw; + /** @log: sub-structure containing GuC log related data and objects */ struct intel_guc_log log; + /** @ct: the command transport communication channel */ struct intel_guc_ct ct; + /** @slpc: sub-structure containing SLPC related data and objects */ struct intel_guc_slpc slpc; - /* Global engine used to submit requests to GuC */ + /** @sched_engine: Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; + /** + * @stalled_request: if GuC can't process a request for any reason, we + * save it until GuC restarts processing. No other request can be + * submitted until the stalled request is processed. + */ struct i915_request *stalled_request; /* intel_guc_recv interrupt related state */ + /** @irq_lock: protects GuC irq state */ spinlock_t irq_lock; + /** + * @msg_enabled_mask: mask of events that are processed when receiving + * an INTEL_GUC_ACTION_DEFAULT G2H message. + */ unsigned int msg_enabled_mask; + /** + * @outstanding_submission_g2h: number of outstanding GuC to Host + * responses related to GuC submission, used to determine if the GT is + * idle + */ atomic_t outstanding_submission_g2h; + /** @interrupts: pointers to GuC interrupt-managing functions. */ struct { void (*reset)(struct intel_guc *guc); void (*enable)(struct intel_guc *guc); void (*disable)(struct intel_guc *guc); } interrupts; - /* - * contexts_lock protects the pool of free guc ids and a linked list of - * guc ids available to be stolen + /** + * @contexts_lock: protects guc_ids, guc_id_list, ce->guc_id.id, and + * ce->guc_id.ref when transitioning in and out of zero */ spinlock_t contexts_lock; + /** @guc_ids: used to allocate unique ce->guc_id.id values */ struct ida guc_ids; + /** + * @guc_id_list: list of intel_context with valid guc_ids but no refs + */ struct list_head guc_id_list; + /** + * @submission_supported: tracks whether we support GuC submission on + * the current platform + */ bool submission_supported; + /** @submission_selected: tracks whether the user enabled GuC submission */ bool submission_selected; + /** + * @rc_supported: tracks whether we support GuC rc on the current platform + */ bool rc_supported; + /** @rc_selected: tracks whether the user enabled GuC rc */ bool rc_selected; + /** @ads_vma: object allocated to hold the GuC ADS */ struct i915_vma *ads_vma; + /** @ads_blob: contents of the GuC ADS */ struct __guc_ads_blob *ads_blob; + /** @ads_regset_size: size of the save/restore regsets in the ADS */ u32 ads_regset_size; + /** @ads_golden_ctxt_size: size of the golden contexts in the ADS */ u32 ads_golden_ctxt_size; + /** @lrc_desc_pool: object allocated to hold the GuC LRC descriptor pool */ struct i915_vma *lrc_desc_pool; + /** @lrc_desc_pool_vaddr: contents of the GuC LRC descriptor pool */ void *lrc_desc_pool_vaddr; - /* guc_id to intel_context lookup */ + /** + * @context_lookup: used to resolve intel_context from guc_id, if a + * context is present in this structure it is registered with the GuC + */ struct xarray context_lookup; - /* Control params for fw initialization */ + /** @params: Control params for fw initialization */ u32 params[GUC_CTL_MAX_DWORDS]; - /* GuC's FW specific registers used in MMIO send */ + /** @send_regs: GuC's FW specific registers used for sending MMIO H2G */ struct { u32 base; unsigned int count; enum forcewake_domains fw_domains; } send_regs; - /* register used to send interrupts to the GuC FW */ + /** @notify_reg: register used to send interrupts to the GuC FW */ i915_reg_t notify_reg; - /* Store msg (e.g. log flush) that we see while CTBs are disabled */ + /** + * @mmio_msg: notification bitmask that the GuC writes in one of its + * registers when the CT channel is disabled, to be processed when the + * channel is back up. + */ u32 mmio_msg; - /* To serialize the intel_guc_send actions */ + /** @send_mutex: used to serialize the intel_guc_send actions */ struct mutex send_mutex; }; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 6926919bcac6..2c6ea64af7ec 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -349,6 +349,8 @@ static void fill_engine_enable_masks(struct intel_gt *gt, info->engine_enabled_masks[GUC_VIDEOENHANCE_CLASS] = VEBOX_MASK(gt); } +#define LR_HW_CONTEXT_SIZE (80 * sizeof(u32)) +#define LRC_SKIP_SIZE (LRC_PPHWSP_SZ * PAGE_SIZE + LR_HW_CONTEXT_SIZE) static int guc_prep_golden_context(struct intel_guc *guc, struct __guc_ads_blob *blob) { @@ -396,7 +398,18 @@ static int guc_prep_golden_context(struct intel_guc *guc, if (!blob) continue; - blob->ads.eng_state_size[guc_class] = real_size; + /* + * This interface is slightly confusing. We need to pass the + * base address of the full golden context and the size of just + * the engine state, which is the section of the context image + * that starts after the execlists context. This is required to + * allow the GuC to restore just the engine state when a + * watchdog reset occurs. + * We calculate the engine state size by removing the size of + * what comes before it in the context image (which is identical + * on all engines). + */ + blob->ads.eng_state_size[guc_class] = real_size - LRC_SKIP_SIZE; blob->ads.golden_context_lrca[guc_class] = addr_ggtt; addr_ggtt += alloc_size; } @@ -436,11 +449,6 @@ static void guc_init_golden_context(struct intel_guc *guc) u8 engine_class, guc_class; u8 *ptr; - /* Skip execlist and PPGTT registers + HWSP */ - const u32 lr_hw_context_size = 80 * sizeof(u32); - const u32 skip_size = LRC_PPHWSP_SZ * PAGE_SIZE + - lr_hw_context_size; - if (!intel_uc_uses_guc_submission(>->uc)) return; @@ -476,12 +484,12 @@ static void guc_init_golden_context(struct intel_guc *guc) continue; } - GEM_BUG_ON(blob->ads.eng_state_size[guc_class] != real_size); + GEM_BUG_ON(blob->ads.eng_state_size[guc_class] != + real_size - LRC_SKIP_SIZE); GEM_BUG_ON(blob->ads.golden_context_lrca[guc_class] != addr_ggtt); addr_ggtt += alloc_size; - shmem_read(engine->default_state, skip_size, ptr + skip_size, - real_size - skip_size); + shmem_read(engine->default_state, 0, ptr, real_size); ptr += alloc_size; } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index 22b4733b55e2..0a3504bc0b61 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -168,12 +168,15 @@ static int guc_action_register_ct_buffer(struct intel_guc *guc, u32 type, FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_2_DESC_ADDR, desc_addr), FIELD_PREP(HOST2GUC_REGISTER_CTB_REQUEST_MSG_3_BUFF_ADDR, buff_addr), }; + int ret; GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST); GEM_BUG_ON(size % SZ_4K); /* CT registration must go over MMIO */ - return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0); + ret = intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0); + + return ret > 0 ? -EPROTO : ret; } static int ct_register_buffer(struct intel_guc_ct *ct, u32 type, @@ -188,8 +191,8 @@ static int ct_register_buffer(struct intel_guc_ct *ct, u32 type, err = guc_action_register_ct_buffer(ct_to_guc(ct), type, desc_addr, buff_addr, size); if (unlikely(err)) - CT_ERROR(ct, "Failed to register %s buffer (err=%d)\n", - guc_ct_buffer_type_to_str(type), err); + CT_ERROR(ct, "Failed to register %s buffer (%pe)\n", + guc_ct_buffer_type_to_str(type), ERR_PTR(err)); return err; } @@ -201,11 +204,14 @@ static int guc_action_deregister_ct_buffer(struct intel_guc *guc, u32 type) FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_ACTION_HOST2GUC_DEREGISTER_CTB), FIELD_PREP(HOST2GUC_DEREGISTER_CTB_REQUEST_MSG_1_TYPE, type), }; + int ret; GEM_BUG_ON(type != GUC_CTB_TYPE_HOST2GUC && type != GUC_CTB_TYPE_GUC2HOST); /* CT deregistration must go over MMIO */ - return intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0); + ret = intel_guc_send_mmio(guc, request, ARRAY_SIZE(request), NULL, 0); + + return ret > 0 ? -EPROTO : ret; } static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type) @@ -213,8 +219,8 @@ static int ct_deregister_buffer(struct intel_guc_ct *ct, u32 type) int err = guc_action_deregister_ct_buffer(ct_to_guc(ct), type); if (unlikely(err)) - CT_ERROR(ct, "Failed to deregister %s buffer (err=%d)\n", - guc_ct_buffer_type_to_str(type), err); + CT_ERROR(ct, "Failed to deregister %s buffer (%pe)\n", + guc_ct_buffer_type_to_str(type), ERR_PTR(err)); return err; } @@ -522,9 +528,6 @@ static int wait_for_ct_request_update(struct ct_request *req, u32 *status) err = wait_for(done, GUC_CTB_RESPONSE_TIMEOUT_LONG_MS); #undef done - if (unlikely(err)) - DRM_ERROR("CT: fence %u err %d\n", req->fence, err); - *status = req->status; return err; } @@ -722,8 +725,11 @@ retry: err = wait_for_ct_request_update(&request, status); g2h_release_space(ct, GUC_CTB_HXG_MSG_MAX_LEN); - if (unlikely(err)) + if (unlikely(err)) { + CT_ERROR(ct, "No response for request %#x (fence %u)\n", + action[0], request.fence); goto unlink; + } if (FIELD_GET(GUC_HXG_MSG_0_TYPE, *status) != GUC_HXG_TYPE_RESPONSE_SUCCESS) { err = -EIO; @@ -775,8 +781,8 @@ int intel_guc_ct_send(struct intel_guc_ct *ct, const u32 *action, u32 len, ret = ct_send(ct, action, len, response_buf, response_buf_size, &status); if (unlikely(ret < 0)) { - CT_ERROR(ct, "Sending action %#x failed (err=%d status=%#X)\n", - action[0], ret, status); + CT_ERROR(ct, "Sending action %#x failed (%pe) status=%#X\n", + action[0], ERR_PTR(ret), status); } else if (unlikely(ret)) { CT_DEBUG(ct, "send action %#x returned %d (%#x)\n", action[0], ret, ret); @@ -1042,9 +1048,9 @@ static void ct_incoming_request_worker_func(struct work_struct *w) container_of(w, struct intel_guc_ct, requests.worker); bool done; - done = ct_process_incoming_requests(ct); - if (!done) - queue_work(system_unbound_wq, &ct->requests.worker); + do { + done = ct_process_incoming_requests(ct); + } while (!done); } static int ct_handle_event(struct intel_guc_ct *ct, struct ct_incoming_msg *request) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c index 887c8c8f35db..25f09a420561 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_debugfs.c @@ -5,14 +5,14 @@ #include <drm/drm_print.h> -#include "gt/debugfs_gt.h" +#include "gt/intel_gt_debugfs.h" +#include "gt/uc/intel_guc_ads.h" +#include "gt/uc/intel_guc_ct.h" +#include "gt/uc/intel_guc_slpc.h" +#include "gt/uc/intel_guc_submission.h" #include "intel_guc.h" #include "intel_guc_debugfs.h" #include "intel_guc_log_debugfs.h" -#include "gt/uc/intel_guc_ct.h" -#include "gt/uc/intel_guc_ads.h" -#include "gt/uc/intel_guc_submission.h" -#include "gt/uc/intel_guc_slpc.h" static int guc_info_show(struct seq_file *m, void *data) { @@ -35,7 +35,7 @@ static int guc_info_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_info); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_info); static int guc_registered_contexts_show(struct seq_file *m, void *data) { @@ -49,7 +49,7 @@ static int guc_registered_contexts_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_registered_contexts); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_registered_contexts); static int guc_slpc_info_show(struct seq_file *m, void *unused) { @@ -62,7 +62,7 @@ static int guc_slpc_info_show(struct seq_file *m, void *unused) return intel_guc_slpc_print_info(slpc, &p); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_slpc_info); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_slpc_info); static bool intel_eval_slpc_support(void *data) { @@ -73,7 +73,7 @@ static bool intel_eval_slpc_support(void *data) void intel_guc_debugfs_register(struct intel_guc *guc, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "guc_info", &guc_info_fops, NULL }, { "guc_registered_contexts", &guc_registered_contexts_fops, NULL }, { "guc_slpc_info", &guc_slpc_info_fops, &intel_eval_slpc_support}, diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c index 76fe766ad1bc..196424be0998 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c @@ -41,18 +41,21 @@ static void guc_prepare_xfer(struct intel_uncore *uncore) } /* Copy RSA signature from the fw image to HW for verification */ -static void guc_xfer_rsa(struct intel_uc_fw *guc_fw, - struct intel_uncore *uncore) +static int guc_xfer_rsa(struct intel_uc_fw *guc_fw, + struct intel_uncore *uncore) { u32 rsa[UOS_RSA_SCRATCH_COUNT]; size_t copied; int i; copied = intel_uc_fw_copy_rsa(guc_fw, rsa, sizeof(rsa)); - GEM_BUG_ON(copied < sizeof(rsa)); + if (copied < sizeof(rsa)) + return -ENOMEM; for (i = 0; i < UOS_RSA_SCRATCH_COUNT; i++) intel_uncore_write(uncore, UOS_RSA_SCRATCH(i), rsa[i]); + + return 0; } /* @@ -141,7 +144,9 @@ int intel_guc_fw_upload(struct intel_guc *guc) * by the DMA engine in one operation, whereas the RSA signature is * loaded via MMIO. */ - guc_xfer_rsa(&guc->fw, uncore); + ret = guc_xfer_rsa(&guc->fw, uncore); + if (ret) + goto out; /* * Current uCode expects the code to be loaded at 8k; locations below diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c index 64e0b86bf258..46026c2c1722 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log_debugfs.c @@ -6,7 +6,7 @@ #include <linux/fs.h> #include <drm/drm_print.h> -#include "gt/debugfs_gt.h" +#include "gt/intel_gt_debugfs.h" #include "intel_guc.h" #include "intel_guc_log.h" #include "intel_guc_log_debugfs.h" @@ -17,7 +17,7 @@ static int guc_log_dump_show(struct seq_file *m, void *data) return intel_guc_log_dump(m->private, &p, false); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_log_dump); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_log_dump); static int guc_load_err_log_dump_show(struct seq_file *m, void *data) { @@ -25,7 +25,7 @@ static int guc_load_err_log_dump_show(struct seq_file *m, void *data) return intel_guc_log_dump(m->private, &p, true); } -DEFINE_GT_DEBUGFS_ATTRIBUTE(guc_load_err_log_dump); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_load_err_log_dump); static int guc_log_level_get(void *data, u64 *val) { @@ -109,7 +109,7 @@ static const struct file_operations guc_log_relay_fops = { void intel_guc_log_debugfs_register(struct intel_guc_log *log, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "guc_log_dump", &guc_log_dump_fops, NULL }, { "guc_load_err_log_dump", &guc_load_err_log_dump_fops, NULL }, { "guc_log_level", &guc_log_level_fops, NULL }, diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index 87d8dc8f51b9..ba0de35f6323 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -28,21 +28,6 @@ /** * DOC: GuC-based command submission * - * IMPORTANT NOTE: GuC submission is currently not supported in i915. The GuC - * firmware is moving to an updated submission interface and we plan to - * turn submission back on when that lands. The below documentation (and related - * code) matches the old submission model and will be updated as part of the - * upgrade to the new flow. - * - * GuC stage descriptor: - * During initialization, the driver allocates a static pool of 1024 such - * descriptors, and shares them with the GuC. Currently, we only use one - * descriptor. This stage descriptor lets the GuC know about the workqueue and - * process descriptor. Theoretically, it also lets the GuC know about our HW - * contexts (context ID, etc...), but we actually employ a kind of submission - * where the GuC uses the LRCA sent via the work item instead. This is called - * a "proxy" submission. - * * The Scratch registers: * There are 16 MMIO-based registers start from 0xC180. The kernel driver writes * a value to the action register (SOFT_SCRATCH_0) along with any data. It then @@ -51,14 +36,85 @@ * processes the request. The kernel driver polls waiting for this update and * then proceeds. * - * Work Items: - * There are several types of work items that the host may place into a - * workqueue, each with its own requirements and limitations. Currently only - * WQ_TYPE_INORDER is needed to support legacy submission via GuC, which - * represents in-order queue. The kernel driver packs ring tail pointer and an - * ELSP context descriptor dword into Work Item. - * See guc_add_request() + * Command Transport buffers (CTBs): + * Covered in detail in other sections but CTBs (Host to GuC - H2G, GuC to Host + * - G2H) are a message interface between the i915 and GuC. + * + * Context registration: + * Before a context can be submitted it must be registered with the GuC via a + * H2G. A unique guc_id is associated with each context. The context is either + * registered at request creation time (normal operation) or at submission time + * (abnormal operation, e.g. after a reset). + * + * Context submission: + * The i915 updates the LRC tail value in memory. The i915 must enable the + * scheduling of the context within the GuC for the GuC to actually consider it. + * Therefore, the first time a disabled context is submitted we use a schedule + * enable H2G, while follow up submissions are done via the context submit H2G, + * which informs the GuC that a previously enabled context has new work + * available. + * + * Context unpin: + * To unpin a context a H2G is used to disable scheduling. When the + * corresponding G2H returns indicating the scheduling disable operation has + * completed it is safe to unpin the context. While a disable is in flight it + * isn't safe to resubmit the context so a fence is used to stall all future + * requests of that context until the G2H is returned. + * + * Context deregistration: + * Before a context can be destroyed or if we steal its guc_id we must + * deregister the context with the GuC via H2G. If stealing the guc_id it isn't + * safe to submit anything to this guc_id until the deregister completes so a + * fence is used to stall all requests associated with this guc_id until the + * corresponding G2H returns indicating the guc_id has been deregistered. + * + * guc_ids: + * Unique number associated with private GuC context data passed in during + * context registration / submission / deregistration. 64k available. Simple ida + * is used for allocation. + * + * Stealing guc_ids: + * If no guc_ids are available they can be stolen from another context at + * request creation time if that context is unpinned. If a guc_id can't be found + * we punt this problem to the user as we believe this is near impossible to hit + * during normal use cases. + * + * Locking: + * In the GuC submission code we have 3 basic spin locks which protect + * everything. Details about each below. + * + * sched_engine->lock + * This is the submission lock for all contexts that share an i915 schedule + * engine (sched_engine), thus only one of the contexts which share a + * sched_engine can be submitting at a time. Currently only one sched_engine is + * used for all of GuC submission but that could change in the future. + * + * guc->contexts_lock + * Protects guc_id allocation for the given GuC, i.e. only one context can be + * doing guc_id allocation operations at a time for each GuC in the system. * + * ce->guc_state.lock + * Protects everything under ce->guc_state. Ensures that a context is in the + * correct state before issuing a H2G. e.g. We don't issue a schedule disable + * on a disabled context (bad idea), we don't issue a schedule enable when a + * schedule disable is in flight, etc... Also protects list of inflight requests + * on the context and the priority management state. Lock is individual to each + * context. + * + * Lock ordering rules: + * sched_engine->lock -> ce->guc_state.lock + * guc->contexts_lock -> ce->guc_state.lock + * + * Reset races: + * When a full GT reset is triggered it is assumed that some G2H responses to + * H2Gs can be lost as the GuC is also reset. Losing these G2H can prove to be + * fatal as we do certain operations upon receiving a G2H (e.g. destroy + * contexts, release guc_ids, etc...). When this occurs we can scrub the + * context state and cleanup appropriately, however this is quite racey. + * To avoid races, the reset code must disable submission before scrubbing for + * the missing G2H, while the submission code must check for submission being + * disabled and skip sending H2Gs and updating context states when it is. Both + * sides must also make sure to hold the relevant locks. */ /* GuC Virtual Engine */ @@ -73,86 +129,35 @@ guc_create_virtual(struct intel_engine_cs **siblings, unsigned int count); #define GUC_REQUEST_SIZE 64 /* bytes */ /* - * Below is a set of functions which control the GuC scheduling state which do - * not require a lock as all state transitions are mutually exclusive. i.e. It - * is not possible for the context pinning code and submission, for the same - * context, to be executing simultaneously. We still need an atomic as it is - * possible for some of the bits to changing at the same time though. - */ -#define SCHED_STATE_NO_LOCK_ENABLED BIT(0) -#define SCHED_STATE_NO_LOCK_PENDING_ENABLE BIT(1) -#define SCHED_STATE_NO_LOCK_REGISTERED BIT(2) -static inline bool context_enabled(struct intel_context *ce) -{ - return (atomic_read(&ce->guc_sched_state_no_lock) & - SCHED_STATE_NO_LOCK_ENABLED); -} - -static inline void set_context_enabled(struct intel_context *ce) -{ - atomic_or(SCHED_STATE_NO_LOCK_ENABLED, &ce->guc_sched_state_no_lock); -} - -static inline void clr_context_enabled(struct intel_context *ce) -{ - atomic_and((u32)~SCHED_STATE_NO_LOCK_ENABLED, - &ce->guc_sched_state_no_lock); -} - -static inline bool context_pending_enable(struct intel_context *ce) -{ - return (atomic_read(&ce->guc_sched_state_no_lock) & - SCHED_STATE_NO_LOCK_PENDING_ENABLE); -} - -static inline void set_context_pending_enable(struct intel_context *ce) -{ - atomic_or(SCHED_STATE_NO_LOCK_PENDING_ENABLE, - &ce->guc_sched_state_no_lock); -} - -static inline void clr_context_pending_enable(struct intel_context *ce) -{ - atomic_and((u32)~SCHED_STATE_NO_LOCK_PENDING_ENABLE, - &ce->guc_sched_state_no_lock); -} - -static inline bool context_registered(struct intel_context *ce) -{ - return (atomic_read(&ce->guc_sched_state_no_lock) & - SCHED_STATE_NO_LOCK_REGISTERED); -} - -static inline void set_context_registered(struct intel_context *ce) -{ - atomic_or(SCHED_STATE_NO_LOCK_REGISTERED, - &ce->guc_sched_state_no_lock); -} - -static inline void clr_context_registered(struct intel_context *ce) -{ - atomic_and((u32)~SCHED_STATE_NO_LOCK_REGISTERED, - &ce->guc_sched_state_no_lock); -} - -/* * Below is a set of functions which control the GuC scheduling state which - * require a lock, aside from the special case where the functions are called - * from guc_lrc_desc_pin(). In that case it isn't possible for any other code - * path to be executing on the context. + * require a lock. */ #define SCHED_STATE_WAIT_FOR_DEREGISTER_TO_REGISTER BIT(0) #define SCHED_STATE_DESTROYED BIT(1) #define SCHED_STATE_PENDING_DISABLE BIT(2) #define SCHED_STATE_BANNED BIT(3) -#define SCHED_STATE_BLOCKED_SHIFT 4 +#define SCHED_STATE_ENABLED BIT(4) +#define SCHED_STATE_PENDING_ENABLE BIT(5) +#define SCHED_STATE_REGISTERED BIT(6) +#define SCHED_STATE_BLOCKED_SHIFT 7 #define SCHED_STATE_BLOCKED BIT(SCHED_STATE_BLOCKED_SHIFT) #define SCHED_STATE_BLOCKED_MASK (0xfff << SCHED_STATE_BLOCKED_SHIFT) + static inline void init_sched_state(struct intel_context *ce) { - /* Only should be called from guc_lrc_desc_pin() */ - atomic_set(&ce->guc_sched_state_no_lock, 0); - ce->guc_state.sched_state = 0; + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= SCHED_STATE_BLOCKED_MASK; +} + +__maybe_unused +static bool sched_state_is_init(struct intel_context *ce) +{ + /* + * XXX: Kernel contexts can have SCHED_STATE_NO_LOCK_REGISTERED after + * suspend. + */ + return !(ce->guc_state.sched_state &= + ~(SCHED_STATE_BLOCKED_MASK | SCHED_STATE_REGISTERED)); } static inline bool @@ -165,7 +170,7 @@ context_wait_for_deregister_to_register(struct intel_context *ce) static inline void set_context_wait_for_deregister_to_register(struct intel_context *ce) { - /* Only should be called from guc_lrc_desc_pin() without lock */ + lockdep_assert_held(&ce->guc_state.lock); ce->guc_state.sched_state |= SCHED_STATE_WAIT_FOR_DEREGISTER_TO_REGISTER; } @@ -225,6 +230,57 @@ static inline void clr_context_banned(struct intel_context *ce) ce->guc_state.sched_state &= ~SCHED_STATE_BANNED; } +static inline bool context_enabled(struct intel_context *ce) +{ + return ce->guc_state.sched_state & SCHED_STATE_ENABLED; +} + +static inline void set_context_enabled(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state |= SCHED_STATE_ENABLED; +} + +static inline void clr_context_enabled(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= ~SCHED_STATE_ENABLED; +} + +static inline bool context_pending_enable(struct intel_context *ce) +{ + return ce->guc_state.sched_state & SCHED_STATE_PENDING_ENABLE; +} + +static inline void set_context_pending_enable(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state |= SCHED_STATE_PENDING_ENABLE; +} + +static inline void clr_context_pending_enable(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= ~SCHED_STATE_PENDING_ENABLE; +} + +static inline bool context_registered(struct intel_context *ce) +{ + return ce->guc_state.sched_state & SCHED_STATE_REGISTERED; +} + +static inline void set_context_registered(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state |= SCHED_STATE_REGISTERED; +} + +static inline void clr_context_registered(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ce->guc_state.sched_state &= ~SCHED_STATE_REGISTERED; +} + static inline u32 context_blocked(struct intel_context *ce) { return (ce->guc_state.sched_state & SCHED_STATE_BLOCKED_MASK) >> @@ -233,7 +289,6 @@ static inline u32 context_blocked(struct intel_context *ce) static inline void incr_context_blocked(struct intel_context *ce) { - lockdep_assert_held(&ce->engine->sched_engine->lock); lockdep_assert_held(&ce->guc_state.lock); ce->guc_state.sched_state += SCHED_STATE_BLOCKED; @@ -243,7 +298,6 @@ static inline void incr_context_blocked(struct intel_context *ce) static inline void decr_context_blocked(struct intel_context *ce) { - lockdep_assert_held(&ce->engine->sched_engine->lock); lockdep_assert_held(&ce->guc_state.lock); GEM_BUG_ON(!context_blocked(ce)); /* Underflow check */ @@ -251,14 +305,33 @@ static inline void decr_context_blocked(struct intel_context *ce) ce->guc_state.sched_state -= SCHED_STATE_BLOCKED; } +static inline bool context_has_committed_requests(struct intel_context *ce) +{ + return !!ce->guc_state.number_committed_requests; +} + +static inline void incr_context_committed_requests(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + ++ce->guc_state.number_committed_requests; + GEM_BUG_ON(ce->guc_state.number_committed_requests < 0); +} + +static inline void decr_context_committed_requests(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + --ce->guc_state.number_committed_requests; + GEM_BUG_ON(ce->guc_state.number_committed_requests < 0); +} + static inline bool context_guc_id_invalid(struct intel_context *ce) { - return ce->guc_id == GUC_INVALID_LRC_ID; + return ce->guc_id.id == GUC_INVALID_LRC_ID; } static inline void set_context_guc_id_invalid(struct intel_context *ce) { - ce->guc_id = GUC_INVALID_LRC_ID; + ce->guc_id.id = GUC_INVALID_LRC_ID; } static inline struct intel_guc *ce_to_guc(struct intel_context *ce) @@ -352,20 +425,29 @@ static inline void set_lrc_desc_registered(struct intel_guc *guc, u32 id, xa_unlock_irqrestore(&guc->context_lookup, flags); } +static void decr_outstanding_submission_g2h(struct intel_guc *guc) +{ + if (atomic_dec_and_test(&guc->outstanding_submission_g2h)) + wake_up_all(&guc->ct.wq); +} + static int guc_submission_send_busy_loop(struct intel_guc *guc, const u32 *action, u32 len, u32 g2h_len_dw, bool loop) { - int err; - - err = intel_guc_send_busy_loop(guc, action, len, g2h_len_dw, loop); + /* + * We always loop when a send requires a reply (i.e. g2h_len_dw > 0), + * so we don't handle the case where we don't get a reply because we + * aborted the send due to the channel being busy. + */ + GEM_BUG_ON(g2h_len_dw && !loop); - if (!err && g2h_len_dw) + if (g2h_len_dw) atomic_inc(&guc->outstanding_submission_g2h); - return err; + return intel_guc_send_busy_loop(guc, action, len, g2h_len_dw, loop); } int intel_guc_wait_for_pending_msg(struct intel_guc *guc, @@ -430,6 +512,8 @@ static int guc_add_request(struct intel_guc *guc, struct i915_request *rq) u32 g2h_len_dw = 0; bool enabled; + lockdep_assert_held(&rq->engine->sched_engine->lock); + /* * Corner case where requests were sitting in the priority list or a * request resubmitted after the context was banned. @@ -437,22 +521,24 @@ static int guc_add_request(struct intel_guc *guc, struct i915_request *rq) if (unlikely(intel_context_is_banned(ce))) { i915_request_put(i915_request_mark_eio(rq)); intel_engine_signal_breadcrumbs(ce->engine); - goto out; + return 0; } - GEM_BUG_ON(!atomic_read(&ce->guc_id_ref)); + GEM_BUG_ON(!atomic_read(&ce->guc_id.ref)); GEM_BUG_ON(context_guc_id_invalid(ce)); /* * Corner case where the GuC firmware was blown away and reloaded while * this context was pinned. */ - if (unlikely(!lrc_desc_registered(guc, ce->guc_id))) { + if (unlikely(!lrc_desc_registered(guc, ce->guc_id.id))) { err = guc_lrc_desc_pin(ce, false); if (unlikely(err)) - goto out; + return err; } + spin_lock(&ce->guc_state.lock); + /* * The request / context will be run on the hardware when scheduling * gets enabled in the unblock. @@ -464,14 +550,14 @@ static int guc_add_request(struct intel_guc *guc, struct i915_request *rq) if (!enabled) { action[len++] = INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET; - action[len++] = ce->guc_id; + action[len++] = ce->guc_id.id; action[len++] = GUC_CONTEXT_ENABLE; set_context_pending_enable(ce); intel_context_get(ce); g2h_len_dw = G2H_LEN_DW_SCHED_CONTEXT_MODE_SET; } else { action[len++] = INTEL_GUC_ACTION_SCHED_CONTEXT; - action[len++] = ce->guc_id; + action[len++] = ce->guc_id.id; } err = intel_guc_send_nb(guc, action, len, g2h_len_dw); @@ -487,6 +573,7 @@ static int guc_add_request(struct intel_guc *guc, struct i915_request *rq) trace_i915_request_guc_submit(rq); out: + spin_unlock(&ce->guc_state.lock); return err; } @@ -596,10 +683,18 @@ static void scrub_guc_desc_for_outstanding_g2h(struct intel_guc *guc) unsigned long index, flags; bool pending_disable, pending_enable, deregister, destroyed, banned; + xa_lock_irqsave(&guc->context_lookup, flags); xa_for_each(&guc->context_lookup, index, ce) { - /* Flush context */ - spin_lock_irqsave(&ce->guc_state.lock, flags); - spin_unlock_irqrestore(&ce->guc_state.lock, flags); + /* + * Corner case where the ref count on the object is zero but and + * deregister G2H was lost. In this case we don't touch the ref + * count and finish the destroy of the context. + */ + bool do_put = kref_get_unless_zero(&ce->ref); + + xa_unlock(&guc->context_lookup); + + spin_lock(&ce->guc_state.lock); /* * Once we are at this point submission_disabled() is guaranteed @@ -615,8 +710,12 @@ static void scrub_guc_desc_for_outstanding_g2h(struct intel_guc *guc) banned = context_banned(ce); init_sched_state(ce); + spin_unlock(&ce->guc_state.lock); + + GEM_BUG_ON(!do_put && !destroyed); + if (pending_enable || destroyed || deregister) { - atomic_dec(&guc->outstanding_submission_g2h); + decr_outstanding_submission_g2h(guc); if (deregister) guc_signal_context_fence(ce); if (destroyed) { @@ -635,14 +734,20 @@ static void scrub_guc_desc_for_outstanding_g2h(struct intel_guc *guc) intel_engine_signal_breadcrumbs(ce->engine); } intel_context_sched_disable_unpin(ce); - atomic_dec(&guc->outstanding_submission_g2h); - spin_lock_irqsave(&ce->guc_state.lock, flags); + decr_outstanding_submission_g2h(guc); + + spin_lock(&ce->guc_state.lock); guc_blocked_fence_complete(ce); - spin_unlock_irqrestore(&ce->guc_state.lock, flags); + spin_unlock(&ce->guc_state.lock); intel_context_put(ce); } + + if (do_put) + intel_context_put(ce); + xa_lock(&guc->context_lookup); } + xa_unlock_irqrestore(&guc->context_lookup, flags); } static inline bool @@ -725,6 +830,7 @@ void intel_guc_submission_reset_prepare(struct intel_guc *guc) wait_for_reset(guc, &guc->outstanding_submission_g2h); } while (!list_empty(&guc->ct.requests.incoming)); } + scrub_guc_desc_for_outstanding_g2h(guc); } @@ -796,16 +902,14 @@ __unwind_incomplete_requests(struct intel_context *ce) unsigned long flags; spin_lock_irqsave(&sched_engine->lock, flags); - spin_lock(&ce->guc_active.lock); - list_for_each_entry_safe(rq, rn, - &ce->guc_active.requests, - sched.link) { + spin_lock(&ce->guc_state.lock); + list_for_each_entry_safe_reverse(rq, rn, + &ce->guc_state.requests, + sched.link) { if (i915_request_completed(rq)) continue; list_del_init(&rq->sched.link); - spin_unlock(&ce->guc_active.lock); - __i915_request_unsubmit(rq); /* Push the request back into the queue for later resubmission. */ @@ -816,29 +920,43 @@ __unwind_incomplete_requests(struct intel_context *ce) } GEM_BUG_ON(i915_sched_engine_is_empty(sched_engine)); - list_add_tail(&rq->sched.link, pl); + list_add(&rq->sched.link, pl); set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); - - spin_lock(&ce->guc_active.lock); } - spin_unlock(&ce->guc_active.lock); + spin_unlock(&ce->guc_state.lock); spin_unlock_irqrestore(&sched_engine->lock, flags); } static void __guc_reset_context(struct intel_context *ce, bool stalled) { struct i915_request *rq; + unsigned long flags; u32 head; + bool skip = false; intel_context_get(ce); /* - * GuC will implicitly mark the context as non-schedulable - * when it sends the reset notification. Make sure our state - * reflects this change. The context will be marked enabled - * on resubmission. + * GuC will implicitly mark the context as non-schedulable when it sends + * the reset notification. Make sure our state reflects this change. The + * context will be marked enabled on resubmission. + * + * XXX: If the context is reset as a result of the request cancellation + * this G2H is received after the schedule disable complete G2H which is + * wrong as this creates a race between the request cancellation code + * re-submitting the context and this G2H handler. This is a bug in the + * GuC but can be worked around in the meantime but converting this to a + * NOP if a pending enable is in flight as this indicates that a request + * cancellation has occurred. */ - clr_context_enabled(ce); + spin_lock_irqsave(&ce->guc_state.lock, flags); + if (likely(!context_pending_enable(ce))) + clr_context_enabled(ce); + else + skip = true; + spin_unlock_irqrestore(&ce->guc_state.lock, flags); + if (unlikely(skip)) + goto out_put; rq = intel_context_find_active_request(ce); if (!rq) { @@ -857,6 +975,7 @@ static void __guc_reset_context(struct intel_context *ce, bool stalled) out_replay: guc_reset_state(ce, head, stalled); __unwind_incomplete_requests(ce); +out_put: intel_context_put(ce); } @@ -864,16 +983,29 @@ void intel_guc_submission_reset(struct intel_guc *guc, bool stalled) { struct intel_context *ce; unsigned long index; + unsigned long flags; if (unlikely(!guc_submission_initialized(guc))) { /* Reset called during driver load? GuC not yet initialised! */ return; } - xa_for_each(&guc->context_lookup, index, ce) + xa_lock_irqsave(&guc->context_lookup, flags); + xa_for_each(&guc->context_lookup, index, ce) { + if (!kref_get_unless_zero(&ce->ref)) + continue; + + xa_unlock(&guc->context_lookup); + if (intel_context_is_pinned(ce)) __guc_reset_context(ce, stalled); + intel_context_put(ce); + + xa_lock(&guc->context_lookup); + } + xa_unlock_irqrestore(&guc->context_lookup, flags); + /* GuC is blown away, drop all references to contexts */ xa_destroy(&guc->context_lookup); } @@ -886,10 +1018,10 @@ static void guc_cancel_context_requests(struct intel_context *ce) /* Mark all executing requests as skipped. */ spin_lock_irqsave(&sched_engine->lock, flags); - spin_lock(&ce->guc_active.lock); - list_for_each_entry(rq, &ce->guc_active.requests, sched.link) + spin_lock(&ce->guc_state.lock); + list_for_each_entry(rq, &ce->guc_state.requests, sched.link) i915_request_put(i915_request_mark_eio(rq)); - spin_unlock(&ce->guc_active.lock); + spin_unlock(&ce->guc_state.lock); spin_unlock_irqrestore(&sched_engine->lock, flags); } @@ -948,11 +1080,24 @@ void intel_guc_submission_cancel_requests(struct intel_guc *guc) { struct intel_context *ce; unsigned long index; + unsigned long flags; + + xa_lock_irqsave(&guc->context_lookup, flags); + xa_for_each(&guc->context_lookup, index, ce) { + if (!kref_get_unless_zero(&ce->ref)) + continue; + + xa_unlock(&guc->context_lookup); - xa_for_each(&guc->context_lookup, index, ce) if (intel_context_is_pinned(ce)) guc_cancel_context_requests(ce); + intel_context_put(ce); + + xa_lock(&guc->context_lookup); + } + xa_unlock_irqrestore(&guc->context_lookup, flags); + guc_cancel_sched_engine_requests(guc->sched_engine); /* GuC is blown away, drop all references to contexts */ @@ -1027,6 +1172,7 @@ static inline void queue_request(struct i915_sched_engine *sched_engine, list_add_tail(&rq->sched.link, i915_sched_lookup_priolist(sched_engine, prio)); set_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); + tasklet_hi_schedule(&sched_engine->tasklet); } static int guc_bypass_tasklet_submit(struct intel_guc *guc, @@ -1077,12 +1223,12 @@ static int new_guc_id(struct intel_guc *guc) static void __release_guc_id(struct intel_guc *guc, struct intel_context *ce) { if (!context_guc_id_invalid(ce)) { - ida_simple_remove(&guc->guc_ids, ce->guc_id); - reset_lrc_desc(guc, ce->guc_id); + ida_simple_remove(&guc->guc_ids, ce->guc_id.id); + reset_lrc_desc(guc, ce->guc_id.id); set_context_guc_id_invalid(ce); } - if (!list_empty(&ce->guc_id_link)) - list_del_init(&ce->guc_id_link); + if (!list_empty(&ce->guc_id.link)) + list_del_init(&ce->guc_id.link); } static void release_guc_id(struct intel_guc *guc, struct intel_context *ce) @@ -1104,14 +1250,18 @@ static int steal_guc_id(struct intel_guc *guc) if (!list_empty(&guc->guc_id_list)) { ce = list_first_entry(&guc->guc_id_list, struct intel_context, - guc_id_link); + guc_id.link); - GEM_BUG_ON(atomic_read(&ce->guc_id_ref)); + GEM_BUG_ON(atomic_read(&ce->guc_id.ref)); GEM_BUG_ON(context_guc_id_invalid(ce)); - list_del_init(&ce->guc_id_link); - guc_id = ce->guc_id; + list_del_init(&ce->guc_id.link); + guc_id = ce->guc_id.id; + + spin_lock(&ce->guc_state.lock); clr_context_registered(ce); + spin_unlock(&ce->guc_state.lock); + set_context_guc_id_invalid(ce); return guc_id; } else { @@ -1142,26 +1292,28 @@ static int pin_guc_id(struct intel_guc *guc, struct intel_context *ce) int ret = 0; unsigned long flags, tries = PIN_GUC_ID_TRIES; - GEM_BUG_ON(atomic_read(&ce->guc_id_ref)); + GEM_BUG_ON(atomic_read(&ce->guc_id.ref)); try_again: spin_lock_irqsave(&guc->contexts_lock, flags); + might_lock(&ce->guc_state.lock); + if (context_guc_id_invalid(ce)) { - ret = assign_guc_id(guc, &ce->guc_id); + ret = assign_guc_id(guc, &ce->guc_id.id); if (ret) goto out_unlock; ret = 1; /* Indidcates newly assigned guc_id */ } - if (!list_empty(&ce->guc_id_link)) - list_del_init(&ce->guc_id_link); - atomic_inc(&ce->guc_id_ref); + if (!list_empty(&ce->guc_id.link)) + list_del_init(&ce->guc_id.link); + atomic_inc(&ce->guc_id.ref); out_unlock: spin_unlock_irqrestore(&guc->contexts_lock, flags); /* - * -EAGAIN indicates no guc_ids are available, let's retire any + * -EAGAIN indicates no guc_id are available, let's retire any * outstanding requests to see if that frees up a guc_id. If the first * retire didn't help, insert a sleep with the timeslice duration before * attempting to retire more requests. Double the sleep period each @@ -1189,15 +1341,15 @@ static void unpin_guc_id(struct intel_guc *guc, struct intel_context *ce) { unsigned long flags; - GEM_BUG_ON(atomic_read(&ce->guc_id_ref) < 0); + GEM_BUG_ON(atomic_read(&ce->guc_id.ref) < 0); if (unlikely(context_guc_id_invalid(ce))) return; spin_lock_irqsave(&guc->contexts_lock, flags); - if (!context_guc_id_invalid(ce) && list_empty(&ce->guc_id_link) && - !atomic_read(&ce->guc_id_ref)) - list_add_tail(&ce->guc_id_link, &guc->guc_id_list); + if (!context_guc_id_invalid(ce) && list_empty(&ce->guc_id.link) && + !atomic_read(&ce->guc_id.ref)) + list_add_tail(&ce->guc_id.link, &guc->guc_id_list); spin_unlock_irqrestore(&guc->contexts_lock, flags); } @@ -1220,21 +1372,25 @@ static int register_context(struct intel_context *ce, bool loop) { struct intel_guc *guc = ce_to_guc(ce); u32 offset = intel_guc_ggtt_offset(guc, guc->lrc_desc_pool) + - ce->guc_id * sizeof(struct guc_lrc_desc); + ce->guc_id.id * sizeof(struct guc_lrc_desc); int ret; trace_intel_context_register(ce); - ret = __guc_action_register_context(guc, ce->guc_id, offset, loop); - if (likely(!ret)) + ret = __guc_action_register_context(guc, ce->guc_id.id, offset, loop); + if (likely(!ret)) { + unsigned long flags; + + spin_lock_irqsave(&ce->guc_state.lock, flags); set_context_registered(ce); + spin_unlock_irqrestore(&ce->guc_state.lock, flags); + } return ret; } static int __guc_action_deregister_context(struct intel_guc *guc, - u32 guc_id, - bool loop) + u32 guc_id) { u32 action[] = { INTEL_GUC_ACTION_DEREGISTER_CONTEXT, @@ -1243,16 +1399,16 @@ static int __guc_action_deregister_context(struct intel_guc *guc, return guc_submission_send_busy_loop(guc, action, ARRAY_SIZE(action), G2H_LEN_DW_DEREGISTER_CONTEXT, - loop); + true); } -static int deregister_context(struct intel_context *ce, u32 guc_id, bool loop) +static int deregister_context(struct intel_context *ce, u32 guc_id) { struct intel_guc *guc = ce_to_guc(ce); trace_intel_context_deregister(ce); - return __guc_action_deregister_context(guc, guc_id, loop); + return __guc_action_deregister_context(guc, guc_id); } static intel_engine_mask_t adjust_engine_mask(u8 class, intel_engine_mask_t mask) @@ -1285,22 +1441,19 @@ static void guc_context_policy_init(struct intel_engine_cs *engine, desc->preemption_timeout = engine->props.preempt_timeout_ms * 1000; } -static inline u8 map_i915_prio_to_guc_prio(int prio); - static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) { struct intel_engine_cs *engine = ce->engine; struct intel_runtime_pm *runtime_pm = engine->uncore->rpm; struct intel_guc *guc = &engine->gt->uc.guc; - u32 desc_idx = ce->guc_id; + u32 desc_idx = ce->guc_id.id; struct guc_lrc_desc *desc; - const struct i915_gem_context *ctx; - int prio = I915_CONTEXT_DEFAULT_PRIORITY; bool context_registered; intel_wakeref_t wakeref; int ret = 0; GEM_BUG_ON(!engine->mask); + GEM_BUG_ON(!sched_state_is_init(ce)); /* * Ensure LRC + CT vmas are is same region as write barrier is done @@ -1311,12 +1464,6 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) context_registered = lrc_desc_registered(guc, desc_idx); - rcu_read_lock(); - ctx = rcu_dereference(ce->gem_context); - if (ctx) - prio = ctx->sched.priority; - rcu_read_unlock(); - reset_lrc_desc(guc, desc_idx); set_lrc_desc_registered(guc, desc_idx, ce); @@ -1325,11 +1472,9 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) desc->engine_submit_mask = adjust_engine_mask(engine->class, engine->mask); desc->hw_context_desc = ce->lrc.lrca; - ce->guc_prio = map_i915_prio_to_guc_prio(prio); - desc->priority = ce->guc_prio; + desc->priority = ce->guc_state.prio; desc->context_flags = CONTEXT_REGISTRATION_FLAG_KMD; guc_context_policy_init(engine, desc); - init_sched_state(ce); /* * The context_lookup xarray is used to determine if the hardware @@ -1340,26 +1485,23 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) * registering this context. */ if (context_registered) { + bool disabled; + unsigned long flags; + trace_intel_context_steal_guc_id(ce); - if (!loop) { + GEM_BUG_ON(!loop); + + /* Seal race with Reset */ + spin_lock_irqsave(&ce->guc_state.lock, flags); + disabled = submission_disabled(guc); + if (likely(!disabled)) { set_context_wait_for_deregister_to_register(ce); intel_context_get(ce); - } else { - bool disabled; - unsigned long flags; - - /* Seal race with Reset */ - spin_lock_irqsave(&ce->guc_state.lock, flags); - disabled = submission_disabled(guc); - if (likely(!disabled)) { - set_context_wait_for_deregister_to_register(ce); - intel_context_get(ce); - } - spin_unlock_irqrestore(&ce->guc_state.lock, flags); - if (unlikely(disabled)) { - reset_lrc_desc(guc, desc_idx); - return 0; /* Will get registered later */ - } + } + spin_unlock_irqrestore(&ce->guc_state.lock, flags); + if (unlikely(disabled)) { + reset_lrc_desc(guc, desc_idx); + return 0; /* Will get registered later */ } /* @@ -1367,20 +1509,18 @@ static int guc_lrc_desc_pin(struct intel_context *ce, bool loop) * context whose guc_id was stolen. */ with_intel_runtime_pm(runtime_pm, wakeref) - ret = deregister_context(ce, ce->guc_id, loop); - if (unlikely(ret == -EBUSY)) { - clr_context_wait_for_deregister_to_register(ce); - intel_context_put(ce); - } else if (unlikely(ret == -ENODEV)) { + ret = deregister_context(ce, ce->guc_id.id); + if (unlikely(ret == -ENODEV)) ret = 0; /* Will get registered later */ - } } else { with_intel_runtime_pm(runtime_pm, wakeref) ret = register_context(ce, loop); - if (unlikely(ret == -EBUSY)) + if (unlikely(ret == -EBUSY)) { + reset_lrc_desc(guc, desc_idx); + } else if (unlikely(ret == -ENODEV)) { reset_lrc_desc(guc, desc_idx); - else if (unlikely(ret == -ENODEV)) ret = 0; /* Will get registered later */ + } } return ret; @@ -1440,7 +1580,7 @@ static void __guc_context_sched_enable(struct intel_guc *guc, { u32 action[] = { INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET, - ce->guc_id, + ce->guc_id.id, GUC_CONTEXT_ENABLE }; @@ -1456,7 +1596,7 @@ static void __guc_context_sched_disable(struct intel_guc *guc, { u32 action[] = { INTEL_GUC_ACTION_SCHED_CONTEXT_MODE_SET, - guc_id, /* ce->guc_id not stable */ + guc_id, /* ce->guc_id.id not stable */ GUC_CONTEXT_DISABLE }; @@ -1472,24 +1612,24 @@ static void guc_blocked_fence_complete(struct intel_context *ce) { lockdep_assert_held(&ce->guc_state.lock); - if (!i915_sw_fence_done(&ce->guc_blocked)) - i915_sw_fence_complete(&ce->guc_blocked); + if (!i915_sw_fence_done(&ce->guc_state.blocked)) + i915_sw_fence_complete(&ce->guc_state.blocked); } static void guc_blocked_fence_reinit(struct intel_context *ce) { lockdep_assert_held(&ce->guc_state.lock); - GEM_BUG_ON(!i915_sw_fence_done(&ce->guc_blocked)); + GEM_BUG_ON(!i915_sw_fence_done(&ce->guc_state.blocked)); /* * This fence is always complete unless a pending schedule disable is * outstanding. We arm the fence here and complete it when we receive * the pending schedule disable complete message. */ - i915_sw_fence_fini(&ce->guc_blocked); - i915_sw_fence_reinit(&ce->guc_blocked); - i915_sw_fence_await(&ce->guc_blocked); - i915_sw_fence_commit(&ce->guc_blocked); + i915_sw_fence_fini(&ce->guc_state.blocked); + i915_sw_fence_reinit(&ce->guc_state.blocked); + i915_sw_fence_await(&ce->guc_state.blocked); + i915_sw_fence_commit(&ce->guc_state.blocked); } static u16 prep_context_pending_disable(struct intel_context *ce) @@ -1501,13 +1641,12 @@ static u16 prep_context_pending_disable(struct intel_context *ce) guc_blocked_fence_reinit(ce); intel_context_get(ce); - return ce->guc_id; + return ce->guc_id.id; } static struct i915_sw_fence *guc_context_block(struct intel_context *ce) { struct intel_guc *guc = ce_to_guc(ce); - struct i915_sched_engine *sched_engine = ce->engine->sched_engine; unsigned long flags; struct intel_runtime_pm *runtime_pm = ce->engine->uncore->rpm; intel_wakeref_t wakeref; @@ -1516,20 +1655,14 @@ static struct i915_sw_fence *guc_context_block(struct intel_context *ce) spin_lock_irqsave(&ce->guc_state.lock, flags); - /* - * Sync with submission path, increment before below changes to context - * state. - */ - spin_lock(&sched_engine->lock); incr_context_blocked(ce); - spin_unlock(&sched_engine->lock); enabled = context_enabled(ce); if (unlikely(!enabled || submission_disabled(guc))) { if (enabled) clr_context_enabled(ce); spin_unlock_irqrestore(&ce->guc_state.lock, flags); - return &ce->guc_blocked; + return &ce->guc_state.blocked; } /* @@ -1545,13 +1678,29 @@ static struct i915_sw_fence *guc_context_block(struct intel_context *ce) with_intel_runtime_pm(runtime_pm, wakeref) __guc_context_sched_disable(guc, ce, guc_id); - return &ce->guc_blocked; + return &ce->guc_state.blocked; +} + +#define SCHED_STATE_MULTI_BLOCKED_MASK \ + (SCHED_STATE_BLOCKED_MASK & ~SCHED_STATE_BLOCKED) +#define SCHED_STATE_NO_UNBLOCK \ + (SCHED_STATE_MULTI_BLOCKED_MASK | \ + SCHED_STATE_PENDING_DISABLE | \ + SCHED_STATE_BANNED) + +static bool context_cant_unblock(struct intel_context *ce) +{ + lockdep_assert_held(&ce->guc_state.lock); + + return (ce->guc_state.sched_state & SCHED_STATE_NO_UNBLOCK) || + context_guc_id_invalid(ce) || + !lrc_desc_registered(ce_to_guc(ce), ce->guc_id.id) || + !intel_context_is_pinned(ce); } static void guc_context_unblock(struct intel_context *ce) { struct intel_guc *guc = ce_to_guc(ce); - struct i915_sched_engine *sched_engine = ce->engine->sched_engine; unsigned long flags; struct intel_runtime_pm *runtime_pm = ce->engine->uncore->rpm; intel_wakeref_t wakeref; @@ -1562,9 +1711,7 @@ static void guc_context_unblock(struct intel_context *ce) spin_lock_irqsave(&ce->guc_state.lock, flags); if (unlikely(submission_disabled(guc) || - !intel_context_is_pinned(ce) || - context_pending_disable(ce) || - context_blocked(ce) > 1)) { + context_cant_unblock(ce))) { enable = false; } else { enable = true; @@ -1573,13 +1720,7 @@ static void guc_context_unblock(struct intel_context *ce) intel_context_get(ce); } - /* - * Sync with submission path, decrement after above changes to context - * state. - */ - spin_lock(&sched_engine->lock); decr_context_blocked(ce); - spin_unlock(&sched_engine->lock); spin_unlock_irqrestore(&ce->guc_state.lock, flags); @@ -1593,15 +1734,25 @@ static void guc_context_cancel_request(struct intel_context *ce, struct i915_request *rq) { if (i915_sw_fence_signaled(&rq->submit)) { - struct i915_sw_fence *fence = guc_context_block(ce); + struct i915_sw_fence *fence; + intel_context_get(ce); + fence = guc_context_block(ce); i915_sw_fence_wait(fence); if (!i915_request_completed(rq)) { __i915_request_skip(rq); guc_reset_state(ce, intel_ring_wrap(ce->ring, rq->head), true); } + + /* + * XXX: Racey if context is reset, see comment in + * __guc_reset_context(). + */ + flush_work(&ce_to_guc(ce)->ct.requests.worker); + guc_context_unblock(ce); + intel_context_put(ce); } } @@ -1662,7 +1813,7 @@ static void guc_context_ban(struct intel_context *ce, struct i915_request *rq) if (!context_guc_id_invalid(ce)) with_intel_runtime_pm(runtime_pm, wakeref) __guc_context_set_preemption_timeout(guc, - ce->guc_id, + ce->guc_id.id, 1); spin_unlock_irqrestore(&ce->guc_state.lock, flags); } @@ -1675,40 +1826,22 @@ static void guc_context_sched_disable(struct intel_context *ce) struct intel_runtime_pm *runtime_pm = &ce->engine->gt->i915->runtime_pm; intel_wakeref_t wakeref; u16 guc_id; - bool enabled; - - if (submission_disabled(guc) || context_guc_id_invalid(ce) || - !lrc_desc_registered(guc, ce->guc_id)) { - clr_context_enabled(ce); - goto unpin; - } - - if (!context_enabled(ce)) - goto unpin; spin_lock_irqsave(&ce->guc_state.lock, flags); /* - * We have to check if the context has been disabled by another thread. - * We also have to check if the context has been pinned again as another - * pin operation is allowed to pass this function. Checking the pin - * count, within ce->guc_state.lock, synchronizes this function with - * guc_request_alloc ensuring a request doesn't slip through the - * 'context_pending_disable' fence. Checking within the spin lock (can't - * sleep) ensures another process doesn't pin this context and generate - * a request before we set the 'context_pending_disable' flag here. + * We have to check if the context has been disabled by another thread, + * check if submssion has been disabled to seal a race with reset and + * finally check if any more requests have been committed to the + * context ensursing that a request doesn't slip through the + * 'context_pending_disable' fence. */ - enabled = context_enabled(ce); - if (unlikely(!enabled || submission_disabled(guc))) { - if (enabled) - clr_context_enabled(ce); + if (unlikely(!context_enabled(ce) || submission_disabled(guc) || + context_has_committed_requests(ce))) { + clr_context_enabled(ce); spin_unlock_irqrestore(&ce->guc_state.lock, flags); goto unpin; } - if (unlikely(atomic_add_unless(&ce->pin_count, -2, 2))) { - spin_unlock_irqrestore(&ce->guc_state.lock, flags); - return; - } guc_id = prep_context_pending_disable(ce); spin_unlock_irqrestore(&ce->guc_state.lock, flags); @@ -1725,20 +1858,20 @@ static inline void guc_lrc_desc_unpin(struct intel_context *ce) { struct intel_guc *guc = ce_to_guc(ce); - GEM_BUG_ON(!lrc_desc_registered(guc, ce->guc_id)); - GEM_BUG_ON(ce != __get_context(guc, ce->guc_id)); + GEM_BUG_ON(!lrc_desc_registered(guc, ce->guc_id.id)); + GEM_BUG_ON(ce != __get_context(guc, ce->guc_id.id)); GEM_BUG_ON(context_enabled(ce)); - clr_context_registered(ce); - deregister_context(ce, ce->guc_id, true); + deregister_context(ce, ce->guc_id.id); } static void __guc_context_destroy(struct intel_context *ce) { - GEM_BUG_ON(ce->guc_prio_count[GUC_CLIENT_PRIORITY_KMD_HIGH] || - ce->guc_prio_count[GUC_CLIENT_PRIORITY_HIGH] || - ce->guc_prio_count[GUC_CLIENT_PRIORITY_KMD_NORMAL] || - ce->guc_prio_count[GUC_CLIENT_PRIORITY_NORMAL]); + GEM_BUG_ON(ce->guc_state.prio_count[GUC_CLIENT_PRIORITY_KMD_HIGH] || + ce->guc_state.prio_count[GUC_CLIENT_PRIORITY_HIGH] || + ce->guc_state.prio_count[GUC_CLIENT_PRIORITY_KMD_NORMAL] || + ce->guc_state.prio_count[GUC_CLIENT_PRIORITY_NORMAL]); + GEM_BUG_ON(ce->guc_state.number_committed_requests); lrc_fini(ce); intel_context_fini(ce); @@ -1774,7 +1907,7 @@ static void guc_context_destroy(struct kref *kref) __guc_context_destroy(ce); return; } else if (submission_disabled(guc) || - !lrc_desc_registered(guc, ce->guc_id)) { + !lrc_desc_registered(guc, ce->guc_id.id)) { release_guc_id(guc, ce); __guc_context_destroy(ce); return; @@ -1783,10 +1916,10 @@ static void guc_context_destroy(struct kref *kref) /* * We have to acquire the context spinlock and check guc_id again, if it * is valid it hasn't been stolen and needs to be deregistered. We - * delete this context from the list of unpinned guc_ids available to + * delete this context from the list of unpinned guc_id available to * steal to seal a race with guc_lrc_desc_pin(). When the G2H CTB * returns indicating this context has been deregistered the guc_id is - * returned to the pool of available guc_ids. + * returned to the pool of available guc_id. */ spin_lock_irqsave(&guc->contexts_lock, flags); if (context_guc_id_invalid(ce)) { @@ -1795,15 +1928,17 @@ static void guc_context_destroy(struct kref *kref) return; } - if (!list_empty(&ce->guc_id_link)) - list_del_init(&ce->guc_id_link); + if (!list_empty(&ce->guc_id.link)) + list_del_init(&ce->guc_id.link); spin_unlock_irqrestore(&guc->contexts_lock, flags); /* Seal race with Reset */ spin_lock_irqsave(&ce->guc_state.lock, flags); disabled = submission_disabled(guc); - if (likely(!disabled)) + if (likely(!disabled)) { set_context_destroyed(ce); + clr_context_registered(ce); + } spin_unlock_irqrestore(&ce->guc_state.lock, flags); if (unlikely(disabled)) { release_guc_id(guc, ce); @@ -1839,20 +1974,23 @@ static void guc_context_set_prio(struct intel_guc *guc, { u32 action[] = { INTEL_GUC_ACTION_SET_CONTEXT_PRIORITY, - ce->guc_id, + ce->guc_id.id, prio, }; GEM_BUG_ON(prio < GUC_CLIENT_PRIORITY_KMD_HIGH || prio > GUC_CLIENT_PRIORITY_NORMAL); + lockdep_assert_held(&ce->guc_state.lock); - if (ce->guc_prio == prio || submission_disabled(guc) || - !context_registered(ce)) + if (ce->guc_state.prio == prio || submission_disabled(guc) || + !context_registered(ce)) { + ce->guc_state.prio = prio; return; + } guc_submission_send_busy_loop(guc, action, ARRAY_SIZE(action), 0, true); - ce->guc_prio = prio; + ce->guc_state.prio = prio; trace_intel_context_set_prio(ce); } @@ -1871,25 +2009,25 @@ static inline u8 map_i915_prio_to_guc_prio(int prio) static inline void add_context_inflight_prio(struct intel_context *ce, u8 guc_prio) { - lockdep_assert_held(&ce->guc_active.lock); - GEM_BUG_ON(guc_prio >= ARRAY_SIZE(ce->guc_prio_count)); + lockdep_assert_held(&ce->guc_state.lock); + GEM_BUG_ON(guc_prio >= ARRAY_SIZE(ce->guc_state.prio_count)); - ++ce->guc_prio_count[guc_prio]; + ++ce->guc_state.prio_count[guc_prio]; /* Overflow protection */ - GEM_WARN_ON(!ce->guc_prio_count[guc_prio]); + GEM_WARN_ON(!ce->guc_state.prio_count[guc_prio]); } static inline void sub_context_inflight_prio(struct intel_context *ce, u8 guc_prio) { - lockdep_assert_held(&ce->guc_active.lock); - GEM_BUG_ON(guc_prio >= ARRAY_SIZE(ce->guc_prio_count)); + lockdep_assert_held(&ce->guc_state.lock); + GEM_BUG_ON(guc_prio >= ARRAY_SIZE(ce->guc_state.prio_count)); /* Underflow protection */ - GEM_WARN_ON(!ce->guc_prio_count[guc_prio]); + GEM_WARN_ON(!ce->guc_state.prio_count[guc_prio]); - --ce->guc_prio_count[guc_prio]; + --ce->guc_state.prio_count[guc_prio]; } static inline void update_context_prio(struct intel_context *ce) @@ -1900,10 +2038,10 @@ static inline void update_context_prio(struct intel_context *ce) BUILD_BUG_ON(GUC_CLIENT_PRIORITY_KMD_HIGH != 0); BUILD_BUG_ON(GUC_CLIENT_PRIORITY_KMD_HIGH > GUC_CLIENT_PRIORITY_NORMAL); - lockdep_assert_held(&ce->guc_active.lock); + lockdep_assert_held(&ce->guc_state.lock); - for (i = 0; i < ARRAY_SIZE(ce->guc_prio_count); ++i) { - if (ce->guc_prio_count[i]) { + for (i = 0; i < ARRAY_SIZE(ce->guc_state.prio_count); ++i) { + if (ce->guc_state.prio_count[i]) { guc_context_set_prio(guc, ce, i); break; } @@ -1923,8 +2061,8 @@ static void add_to_context(struct i915_request *rq) GEM_BUG_ON(rq->guc_prio == GUC_PRIO_FINI); - spin_lock(&ce->guc_active.lock); - list_move_tail(&rq->sched.link, &ce->guc_active.requests); + spin_lock(&ce->guc_state.lock); + list_move_tail(&rq->sched.link, &ce->guc_state.requests); if (rq->guc_prio == GUC_PRIO_INIT) { rq->guc_prio = new_guc_prio; @@ -1936,12 +2074,12 @@ static void add_to_context(struct i915_request *rq) } update_context_prio(ce); - spin_unlock(&ce->guc_active.lock); + spin_unlock(&ce->guc_state.lock); } static void guc_prio_fini(struct i915_request *rq, struct intel_context *ce) { - lockdep_assert_held(&ce->guc_active.lock); + lockdep_assert_held(&ce->guc_state.lock); if (rq->guc_prio != GUC_PRIO_INIT && rq->guc_prio != GUC_PRIO_FINI) { @@ -1955,7 +2093,7 @@ static void remove_from_context(struct i915_request *rq) { struct intel_context *ce = rq->context; - spin_lock_irq(&ce->guc_active.lock); + spin_lock_irq(&ce->guc_state.lock); list_del_init(&rq->sched.link); clear_bit(I915_FENCE_FLAG_PQUEUE, &rq->fence.flags); @@ -1965,9 +2103,11 @@ static void remove_from_context(struct i915_request *rq) guc_prio_fini(rq, ce); - spin_unlock_irq(&ce->guc_active.lock); + decr_context_committed_requests(ce); - atomic_dec(&ce->guc_id_ref); + spin_unlock_irq(&ce->guc_state.lock); + + atomic_dec(&ce->guc_id.ref); i915_request_notify_execute_cb_imm(rq); } @@ -1994,17 +2134,32 @@ static const struct intel_context_ops guc_context_ops = { .create_virtual = guc_create_virtual, }; +static void submit_work_cb(struct irq_work *wrk) +{ + struct i915_request *rq = container_of(wrk, typeof(*rq), submit_work); + + might_lock(&rq->engine->sched_engine->lock); + i915_sw_fence_complete(&rq->submit); +} + static void __guc_signal_context_fence(struct intel_context *ce) { - struct i915_request *rq; + struct i915_request *rq, *rn; lockdep_assert_held(&ce->guc_state.lock); if (!list_empty(&ce->guc_state.fences)) trace_intel_context_fence_release(ce); - list_for_each_entry(rq, &ce->guc_state.fences, guc_fence_link) - i915_sw_fence_complete(&rq->submit); + /* + * Use an IRQ to ensure locking order of sched_engine->lock -> + * ce->guc_state.lock is preserved. + */ + list_for_each_entry_safe(rq, rn, &ce->guc_state.fences, + guc_fence_link) { + list_del(&rq->guc_fence_link); + irq_work_queue(&rq->submit_work); + } INIT_LIST_HEAD(&ce->guc_state.fences); } @@ -2022,10 +2177,25 @@ static void guc_signal_context_fence(struct intel_context *ce) static bool context_needs_register(struct intel_context *ce, bool new_guc_id) { return (new_guc_id || test_bit(CONTEXT_LRCA_DIRTY, &ce->flags) || - !lrc_desc_registered(ce_to_guc(ce), ce->guc_id)) && + !lrc_desc_registered(ce_to_guc(ce), ce->guc_id.id)) && !submission_disabled(ce_to_guc(ce)); } +static void guc_context_init(struct intel_context *ce) +{ + const struct i915_gem_context *ctx; + int prio = I915_CONTEXT_DEFAULT_PRIORITY; + + rcu_read_lock(); + ctx = rcu_dereference(ce->gem_context); + if (ctx) + prio = ctx->sched.priority; + rcu_read_unlock(); + + ce->guc_state.prio = map_i915_prio_to_guc_prio(prio); + set_bit(CONTEXT_GUC_INIT, &ce->flags); +} + static int guc_request_alloc(struct i915_request *rq) { struct intel_context *ce = rq->context; @@ -2057,14 +2227,17 @@ static int guc_request_alloc(struct i915_request *rq) rq->reserved_space -= GUC_REQUEST_SIZE; + if (unlikely(!test_bit(CONTEXT_GUC_INIT, &ce->flags))) + guc_context_init(ce); + /* * Call pin_guc_id here rather than in the pinning step as with * dma_resv, contexts can be repeatedly pinned / unpinned trashing the - * guc_ids and creating horrible race conditions. This is especially bad - * when guc_ids are being stolen due to over subscription. By the time + * guc_id and creating horrible race conditions. This is especially bad + * when guc_id are being stolen due to over subscription. By the time * this function is reached, it is guaranteed that the guc_id will be * persistent until the generated request is retired. Thus, sealing these - * race conditions. It is still safe to fail here if guc_ids are + * race conditions. It is still safe to fail here if guc_id are * exhausted and return -EAGAIN to the user indicating that they can try * again in the future. * @@ -2074,7 +2247,7 @@ static int guc_request_alloc(struct i915_request *rq) * decremented on each retire. When it is zero, a lock around the * increment (in pin_guc_id) is needed to seal a race with unpin_guc_id. */ - if (atomic_add_unless(&ce->guc_id_ref, 1, 0)) + if (atomic_add_unless(&ce->guc_id.ref, 1, 0)) goto out; ret = pin_guc_id(guc, ce); /* returns 1 if new guc_id assigned */ @@ -2087,7 +2260,7 @@ static int guc_request_alloc(struct i915_request *rq) disable_submission(guc); goto out; /* GPU will be reset */ } - atomic_dec(&ce->guc_id_ref); + atomic_dec(&ce->guc_id.ref); unpin_guc_id(guc, ce); return ret; } @@ -2102,22 +2275,16 @@ out: * schedule enable or context registration if either G2H is pending * respectfully. Once a G2H returns, the fence is released that is * blocking these requests (see guc_signal_context_fence). - * - * We can safely check the below fields outside of the lock as it isn't - * possible for these fields to transition from being clear to set but - * converse is possible, hence the need for the check within the lock. */ - if (likely(!context_wait_for_deregister_to_register(ce) && - !context_pending_disable(ce))) - return 0; - spin_lock_irqsave(&ce->guc_state.lock, flags); if (context_wait_for_deregister_to_register(ce) || context_pending_disable(ce)) { + init_irq_work(&rq->submit_work, submit_work_cb); i915_sw_fence_await(&rq->submit); list_add_tail(&rq->guc_fence_link, &ce->guc_state.fences); } + incr_context_committed_requests(ce); spin_unlock_irqrestore(&ce->guc_state.lock, flags); return 0; @@ -2259,7 +2426,7 @@ static void guc_bump_inflight_request_prio(struct i915_request *rq, !new_guc_prio_higher(rq->guc_prio, new_guc_prio))) return; - spin_lock(&ce->guc_active.lock); + spin_lock(&ce->guc_state.lock); if (rq->guc_prio != GUC_PRIO_FINI) { if (rq->guc_prio != GUC_PRIO_INIT) sub_context_inflight_prio(ce, rq->guc_prio); @@ -2267,16 +2434,16 @@ static void guc_bump_inflight_request_prio(struct i915_request *rq, add_context_inflight_prio(ce, rq->guc_prio); update_context_prio(ce); } - spin_unlock(&ce->guc_active.lock); + spin_unlock(&ce->guc_state.lock); } static void guc_retire_inflight_request_prio(struct i915_request *rq) { struct intel_context *ce = rq->context; - spin_lock(&ce->guc_active.lock); + spin_lock(&ce->guc_state.lock); guc_prio_fini(rq, ce); - spin_unlock(&ce->guc_active.lock); + spin_unlock(&ce->guc_state.lock); } static void sanitize_hwsp(struct intel_engine_cs *engine) @@ -2310,6 +2477,8 @@ static void guc_sanitize(struct intel_engine_cs *engine) /* And scrub the dirty cachelines for the HWSP */ clflush_cache_range(engine->status_page.addr, PAGE_SIZE); + + intel_engine_reset_pinned_contexts(engine); } static void setup_hwsp(struct intel_engine_cs *engine) @@ -2385,9 +2554,13 @@ static inline void guc_init_lrc_mapping(struct intel_guc *guc) * and even it did this code would be run again. */ - for_each_engine(engine, gt, id) - if (engine->kernel_context) - guc_kernel_context_pin(guc, engine->kernel_context); + for_each_engine(engine, gt, id) { + struct intel_context *ce; + + list_for_each_entry(ce, &engine->pinned_contexts_list, + pinned_contexts_link) + guc_kernel_context_pin(guc, ce); + } } static void guc_release(struct intel_engine_cs *engine) @@ -2583,12 +2756,6 @@ g2h_context_lookup(struct intel_guc *guc, u32 desc_idx) return ce; } -static void decr_outstanding_submission_g2h(struct intel_guc *guc) -{ - if (atomic_dec_and_test(&guc->outstanding_submission_g2h)) - wake_up_all(&guc->ct.wq); -} - int intel_guc_deregister_done_process_msg(struct intel_guc *guc, const u32 *msg, u32 len) @@ -2607,6 +2774,13 @@ int intel_guc_deregister_done_process_msg(struct intel_guc *guc, trace_intel_context_deregister_done(ce); +#ifdef CONFIG_DRM_I915_SELFTEST + if (unlikely(ce->drop_deregister)) { + ce->drop_deregister = false; + return 0; + } +#endif + if (context_wait_for_deregister_to_register(ce)) { struct intel_runtime_pm *runtime_pm = &ce->engine->gt->i915->runtime_pm; @@ -2652,8 +2826,7 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc, (!context_pending_enable(ce) && !context_pending_disable(ce)))) { drm_err(&guc_to_gt(guc)->i915->drm, - "Bad context sched_state 0x%x, 0x%x, desc_idx %u", - atomic_read(&ce->guc_sched_state_no_lock), + "Bad context sched_state 0x%x, desc_idx %u", ce->guc_state.sched_state, desc_idx); return -EPROTO; } @@ -2661,10 +2834,26 @@ int intel_guc_sched_done_process_msg(struct intel_guc *guc, trace_intel_context_sched_done(ce); if (context_pending_enable(ce)) { +#ifdef CONFIG_DRM_I915_SELFTEST + if (unlikely(ce->drop_schedule_enable)) { + ce->drop_schedule_enable = false; + return 0; + } +#endif + + spin_lock_irqsave(&ce->guc_state.lock, flags); clr_context_pending_enable(ce); + spin_unlock_irqrestore(&ce->guc_state.lock, flags); } else if (context_pending_disable(ce)) { bool banned; +#ifdef CONFIG_DRM_I915_SELFTEST + if (unlikely(ce->drop_schedule_disable)) { + ce->drop_schedule_disable = false; + return 0; + } +#endif + /* * Unpin must be done before __guc_signal_context_fence, * otherwise a race exists between the requests getting @@ -2721,7 +2910,12 @@ static void guc_handle_context_reset(struct intel_guc *guc, { trace_intel_context_reset(ce); - if (likely(!intel_context_is_banned(ce))) { + /* + * XXX: Racey if request cancellation has occurred, see comment in + * __guc_reset_context(). + */ + if (likely(!intel_context_is_banned(ce) && + !context_blocked(ce))) { capture_error_state(guc, ce); guc_context_replay(ce); } @@ -2797,33 +2991,47 @@ void intel_guc_find_hung_context(struct intel_engine_cs *engine) struct intel_context *ce; struct i915_request *rq; unsigned long index; + unsigned long flags; /* Reset called during driver load? GuC not yet initialised! */ if (unlikely(!guc_submission_initialized(guc))) return; + xa_lock_irqsave(&guc->context_lookup, flags); xa_for_each(&guc->context_lookup, index, ce) { - if (!intel_context_is_pinned(ce)) + if (!kref_get_unless_zero(&ce->ref)) continue; + xa_unlock(&guc->context_lookup); + + if (!intel_context_is_pinned(ce)) + goto next; + if (intel_engine_is_virtual(ce->engine)) { if (!(ce->engine->mask & engine->mask)) - continue; + goto next; } else { if (ce->engine != engine) - continue; + goto next; } - list_for_each_entry(rq, &ce->guc_active.requests, sched.link) { + list_for_each_entry(rq, &ce->guc_state.requests, sched.link) { if (i915_test_request_state(rq) != I915_REQUEST_ACTIVE) continue; intel_engine_set_hung_context(engine, ce); /* Can only cope with one hang at a time... */ - return; + intel_context_put(ce); + xa_lock(&guc->context_lookup); + goto done; } +next: + intel_context_put(ce); + xa_lock(&guc->context_lookup); } +done: + xa_unlock_irqrestore(&guc->context_lookup, flags); } void intel_guc_dump_active_requests(struct intel_engine_cs *engine, @@ -2839,23 +3047,34 @@ void intel_guc_dump_active_requests(struct intel_engine_cs *engine, if (unlikely(!guc_submission_initialized(guc))) return; + xa_lock_irqsave(&guc->context_lookup, flags); xa_for_each(&guc->context_lookup, index, ce) { - if (!intel_context_is_pinned(ce)) + if (!kref_get_unless_zero(&ce->ref)) continue; + xa_unlock(&guc->context_lookup); + + if (!intel_context_is_pinned(ce)) + goto next; + if (intel_engine_is_virtual(ce->engine)) { if (!(ce->engine->mask & engine->mask)) - continue; + goto next; } else { if (ce->engine != engine) - continue; + goto next; } - spin_lock_irqsave(&ce->guc_active.lock, flags); - intel_engine_dump_active_requests(&ce->guc_active.requests, + spin_lock(&ce->guc_state.lock); + intel_engine_dump_active_requests(&ce->guc_state.requests, hung_rq, m); - spin_unlock_irqrestore(&ce->guc_active.lock, flags); + spin_unlock(&ce->guc_state.lock); + +next: + intel_context_put(ce); + xa_lock(&guc->context_lookup); } + xa_unlock_irqrestore(&guc->context_lookup, flags); } void intel_guc_submission_print_info(struct intel_guc *guc, @@ -2881,7 +3100,7 @@ void intel_guc_submission_print_info(struct intel_guc *guc, priolist_for_each_request(rq, pl) drm_printf(p, "guc_id=%u, seqno=%llu\n", - rq->context->guc_id, + rq->context->guc_id.id, rq->fence.seqno); } spin_unlock_irqrestore(&sched_engine->lock, flags); @@ -2893,13 +3112,12 @@ static inline void guc_log_context_priority(struct drm_printer *p, { int i; - drm_printf(p, "\t\tPriority: %d\n", - ce->guc_prio); + drm_printf(p, "\t\tPriority: %d\n", ce->guc_state.prio); drm_printf(p, "\t\tNumber Requests (lower index == higher priority)\n"); for (i = GUC_CLIENT_PRIORITY_KMD_HIGH; i < GUC_CLIENT_PRIORITY_NUM; ++i) { drm_printf(p, "\t\tNumber requests in priority band[%d]: %d\n", - i, ce->guc_prio_count[i]); + i, ce->guc_state.prio_count[i]); } drm_printf(p, "\n"); } @@ -2909,9 +3127,11 @@ void intel_guc_submission_print_context_info(struct intel_guc *guc, { struct intel_context *ce; unsigned long index; + unsigned long flags; + xa_lock_irqsave(&guc->context_lookup, flags); xa_for_each(&guc->context_lookup, index, ce) { - drm_printf(p, "GuC lrc descriptor %u:\n", ce->guc_id); + drm_printf(p, "GuC lrc descriptor %u:\n", ce->guc_id.id); drm_printf(p, "\tHW Context Desc: 0x%08x\n", ce->lrc.lrca); drm_printf(p, "\t\tLRC Head: Internal %u, Memory %u\n", ce->ring->head, @@ -2922,13 +3142,13 @@ void intel_guc_submission_print_context_info(struct intel_guc *guc, drm_printf(p, "\t\tContext Pin Count: %u\n", atomic_read(&ce->pin_count)); drm_printf(p, "\t\tGuC ID Ref Count: %u\n", - atomic_read(&ce->guc_id_ref)); - drm_printf(p, "\t\tSchedule State: 0x%x, 0x%x\n\n", - ce->guc_state.sched_state, - atomic_read(&ce->guc_sched_state_no_lock)); + atomic_read(&ce->guc_id.ref)); + drm_printf(p, "\t\tSchedule State: 0x%x\n\n", + ce->guc_state.sched_state); guc_log_context_priority(p, ce); } + xa_unlock_irqrestore(&guc->context_lookup, flags); } static struct intel_context * @@ -3036,3 +3256,7 @@ bool intel_guc_virtual_engine_has_heartbeat(const struct intel_engine_cs *ve) return false; } + +#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) +#include "selftest_guc.c" +#endif diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c index fc5387b410a2..ff4b6869b80b 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c @@ -87,17 +87,25 @@ static int intel_huc_rsa_data_create(struct intel_huc *huc) vma->obj, true)); if (IS_ERR(vaddr)) { i915_vma_unpin_and_release(&vma, 0); - return PTR_ERR(vaddr); + err = PTR_ERR(vaddr); + goto unpin_out; } copied = intel_uc_fw_copy_rsa(&huc->fw, vaddr, vma->size); - GEM_BUG_ON(copied < huc->fw.rsa_size); - i915_gem_object_unpin_map(vma->obj); + if (copied < huc->fw.rsa_size) { + err = -ENOMEM; + goto unpin_out; + } + huc->rsa_data = vma; return 0; + +unpin_out: + i915_vma_unpin_and_release(&vma, 0); + return err; } static void intel_huc_rsa_data_destroy(struct intel_huc *huc) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_huc_debugfs.c index 5733c15fd123..15998963b863 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_huc_debugfs.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_huc_debugfs.c @@ -5,7 +5,7 @@ #include <drm/drm_print.h> -#include "gt/debugfs_gt.h" +#include "gt/intel_gt_debugfs.h" #include "intel_huc.h" #include "intel_huc_debugfs.h" @@ -21,11 +21,11 @@ static int huc_info_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(huc_info); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(huc_info); void intel_huc_debugfs_register(struct intel_huc *huc, struct dentry *root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "huc_info", &huc_info_fops, NULL }, }; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c index 86c318516e14..2fef3b0bbe95 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c @@ -35,7 +35,7 @@ static void uc_expand_default_options(struct intel_uc *uc) } /* Intermediate platforms are HuC authentication only */ - if (IS_DG1(i915) || IS_ALDERLAKE_S(i915)) { + if (IS_ALDERLAKE_S(i915)) { i915->params.enable_guc = ENABLE_GUC_LOAD_HUC; return; } diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c index 089d98662f46..c2f7924295e7 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_debugfs.c @@ -6,7 +6,7 @@ #include <linux/debugfs.h> #include <drm/drm_print.h> -#include "gt/debugfs_gt.h" +#include "gt/intel_gt_debugfs.h" #include "intel_guc_debugfs.h" #include "intel_huc_debugfs.h" #include "intel_uc.h" @@ -32,11 +32,11 @@ static int uc_usage_show(struct seq_file *m, void *data) return 0; } -DEFINE_GT_DEBUGFS_ATTRIBUTE(uc_usage); +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(uc_usage); void intel_uc_debugfs_register(struct intel_uc *uc, struct dentry *gt_root) { - static const struct debugfs_gt_file files[] = { + static const struct intel_gt_debugfs_file files[] = { { "usage", &uc_usage_fops, NULL }, }; struct dentry *root; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c index 3a16d08608a5..3aa87be4f2e4 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c @@ -7,6 +7,7 @@ #include <linux/firmware.h> #include <drm/drm_print.h> +#include "gem/i915_gem_lmem.h" #include "intel_uc_fw.h" #include "intel_uc_fw_abi.h" #include "i915_drv.h" @@ -50,6 +51,7 @@ void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw, #define INTEL_UC_FIRMWARE_DEFS(fw_def, guc_def, huc_def) \ fw_def(ALDERLAKE_P, 0, guc_def(adlp, 62, 0, 3), huc_def(tgl, 7, 9, 3)) \ fw_def(ALDERLAKE_S, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl, 7, 9, 3)) \ + fw_def(DG1, 0, guc_def(dg1, 62, 0, 0), huc_def(dg1, 7, 9, 3)) \ fw_def(ROCKETLAKE, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl, 7, 9, 3)) \ fw_def(TIGERLAKE, 0, guc_def(tgl, 62, 0, 0), huc_def(tgl, 7, 9, 3)) \ fw_def(JASPERLAKE, 0, guc_def(ehl, 62, 0, 0), huc_def(ehl, 9, 0, 0)) \ @@ -370,7 +372,14 @@ int intel_uc_fw_fetch(struct intel_uc_fw *uc_fw) if (uc_fw->type == INTEL_UC_FW_TYPE_GUC) uc_fw->private_data_size = css->private_data_size; - obj = i915_gem_object_create_shmem_from_data(i915, fw->data, fw->size); + if (HAS_LMEM(i915)) { + obj = i915_gem_object_create_lmem_from_data(i915, fw->data, fw->size); + if (!IS_ERR(obj)) + obj->flags |= I915_BO_ALLOC_PM_EARLY; + } else { + obj = i915_gem_object_create_shmem_from_data(i915, fw->data, fw->size); + } + if (IS_ERR(obj)) { err = PTR_ERR(obj); goto fail; @@ -413,20 +422,25 @@ static void uc_fw_bind_ggtt(struct intel_uc_fw *uc_fw) { struct drm_i915_gem_object *obj = uc_fw->obj; struct i915_ggtt *ggtt = __uc_fw_to_gt(uc_fw)->ggtt; - struct i915_vma dummy = { - .node.start = uc_fw_ggtt_offset(uc_fw), - .node.size = obj->base.size, - .pages = obj->mm.pages, - .vm = &ggtt->vm, - }; + struct i915_vma *dummy = &uc_fw->dummy; + u32 pte_flags = 0; + + dummy->node.start = uc_fw_ggtt_offset(uc_fw); + dummy->node.size = obj->base.size; + dummy->pages = obj->mm.pages; + dummy->vm = &ggtt->vm; GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj)); - GEM_BUG_ON(dummy.node.size > ggtt->uc_fw.size); + GEM_BUG_ON(dummy->node.size > ggtt->uc_fw.size); /* uc_fw->obj cache domains were not controlled across suspend */ - drm_clflush_sg(dummy.pages); + if (i915_gem_object_has_struct_page(obj)) + drm_clflush_sg(dummy->pages); - ggtt->vm.insert_entries(&ggtt->vm, &dummy, I915_CACHE_NONE, 0); + if (i915_gem_object_is_lmem(obj)) + pte_flags |= PTE_LM; + + ggtt->vm.insert_entries(&ggtt->vm, dummy, I915_CACHE_NONE, pte_flags); } static void uc_fw_unbind_ggtt(struct intel_uc_fw *uc_fw) @@ -585,13 +599,68 @@ void intel_uc_fw_cleanup_fetch(struct intel_uc_fw *uc_fw) */ size_t intel_uc_fw_copy_rsa(struct intel_uc_fw *uc_fw, void *dst, u32 max_len) { - struct sg_table *pages = uc_fw->obj->mm.pages; + struct intel_memory_region *mr = uc_fw->obj->mm.region; u32 size = min_t(u32, uc_fw->rsa_size, max_len); u32 offset = sizeof(struct uc_css_header) + uc_fw->ucode_size; + struct sgt_iter iter; + size_t count = 0; + int idx; + /* Called during reset handling, must be atomic [no fs_reclaim] */ GEM_BUG_ON(!intel_uc_fw_is_available(uc_fw)); - return sg_pcopy_to_buffer(pages->sgl, pages->nents, dst, size, offset); + idx = offset >> PAGE_SHIFT; + offset = offset_in_page(offset); + if (i915_gem_object_has_struct_page(uc_fw->obj)) { + struct page *page; + + for_each_sgt_page(page, iter, uc_fw->obj->mm.pages) { + u32 len = min_t(u32, size, PAGE_SIZE - offset); + void *vaddr; + + if (idx > 0) { + idx--; + continue; + } + + vaddr = kmap_atomic(page); + memcpy(dst, vaddr + offset, len); + kunmap_atomic(vaddr); + + offset = 0; + dst += len; + size -= len; + count += len; + if (!size) + break; + } + } else { + dma_addr_t addr; + + for_each_sgt_daddr(addr, iter, uc_fw->obj->mm.pages) { + u32 len = min_t(u32, size, PAGE_SIZE - offset); + void __iomem *vaddr; + + if (idx > 0) { + idx--; + continue; + } + + vaddr = io_mapping_map_atomic_wc(&mr->iomap, + addr - mr->region.start); + memcpy_fromio(dst, vaddr + offset, len); + io_mapping_unmap_atomic(vaddr); + + offset = 0; + dst += len; + size -= len; + count += len; + if (!size) + break; + } + } + + return count; } /** diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h index 99bb1fe1af66..1e00bf65639e 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h @@ -10,6 +10,7 @@ #include "intel_uc_fw_abi.h" #include "intel_device_info.h" #include "i915_gem.h" +#include "i915_vma.h" struct drm_printer; struct drm_i915_private; @@ -75,6 +76,14 @@ struct intel_uc_fw { bool user_overridden; size_t size; struct drm_i915_gem_object *obj; + /** + * @dummy: A vma used in binding the uc fw to ggtt. We can't define this + * vma on the stack as it can lead to a stack overflow, so we define it + * here. Safe to have 1 copy per uc fw because the binding is single + * threaded as it done during driver load (inherently single threaded) + * or during a GT reset (mutex guarantees single threaded). + */ + struct i915_vma dummy; /* * The firmware build process will generate a version header file with major and diff --git a/drivers/gpu/drm/i915/gt/uc/selftest_guc.c b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c new file mode 100644 index 000000000000..fb0e4a7bd8ca --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/selftest_guc.c @@ -0,0 +1,127 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright �� 2021 Intel Corporation + */ + +#include "selftests/intel_scheduler_helpers.h" + +static struct i915_request *nop_user_request(struct intel_context *ce, + struct i915_request *from) +{ + struct i915_request *rq; + int ret; + + rq = intel_context_create_request(ce); + if (IS_ERR(rq)) + return rq; + + if (from) { + ret = i915_sw_fence_await_dma_fence(&rq->submit, + &from->fence, 0, + I915_FENCE_GFP); + if (ret < 0) { + i915_request_put(rq); + return ERR_PTR(ret); + } + } + + i915_request_get(rq); + i915_request_add(rq); + + return rq; +} + +static int intel_guc_scrub_ctbs(void *arg) +{ + struct intel_gt *gt = arg; + int ret = 0; + int i; + struct i915_request *last[3] = {NULL, NULL, NULL}, *rq; + intel_wakeref_t wakeref; + struct intel_engine_cs *engine; + struct intel_context *ce; + + wakeref = intel_runtime_pm_get(gt->uncore->rpm); + engine = intel_selftest_find_any_engine(gt); + + /* Submit requests and inject errors forcing G2H to be dropped */ + for (i = 0; i < 3; ++i) { + ce = intel_context_create(engine); + if (IS_ERR(ce)) { + ret = PTR_ERR(ce); + pr_err("Failed to create context, %d: %d\n", i, ret); + goto err; + } + + switch (i) { + case 0: + ce->drop_schedule_enable = true; + break; + case 1: + ce->drop_schedule_disable = true; + break; + case 2: + ce->drop_deregister = true; + break; + } + + rq = nop_user_request(ce, NULL); + intel_context_put(ce); + + if (IS_ERR(rq)) { + ret = PTR_ERR(rq); + pr_err("Failed to create request, %d: %d\n", i, ret); + goto err; + } + + last[i] = rq; + } + + for (i = 0; i < 3; ++i) { + ret = i915_request_wait(last[i], 0, HZ); + if (ret < 0) { + pr_err("Last request failed to complete: %d\n", ret); + goto err; + } + i915_request_put(last[i]); + last[i] = NULL; + } + + /* Force all H2G / G2H to be submitted / processed */ + intel_gt_retire_requests(gt); + msleep(500); + + /* Scrub missing G2H */ + intel_gt_handle_error(engine->gt, -1, 0, "selftest reset"); + + /* GT will not idle if G2H are lost */ + ret = intel_gt_wait_for_idle(gt, HZ); + if (ret < 0) { + pr_err("GT failed to idle: %d\n", ret); + goto err; + } + +err: + for (i = 0; i < 3; ++i) + if (last[i]) + i915_request_put(last[i]); + intel_runtime_pm_put(gt->uncore->rpm, wakeref); + + return ret; +} + +int intel_guc_live_selftests(struct drm_i915_private *i915) +{ + static const struct i915_subtest tests[] = { + SUBTEST(intel_guc_scrub_ctbs), + }; + struct intel_gt *gt = &i915->gt; + + if (intel_gt_is_wedged(gt)) + return 0; + + if (!intel_uc_uses_guc_submission(>->uc)) + return 0; + + return intel_gt_live_subtests(tests, gt); +} diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index e5c2fdfc20e3..53d0cb327539 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -745,7 +745,7 @@ static void ppgtt_free_spt(struct intel_vgpu_ppgtt_spt *spt) trace_spt_free(spt->vgpu->id, spt, spt->guest_page.type); dma_unmap_page(kdev, spt->shadow_page.mfn << I915_GTT_PAGE_SHIFT, 4096, - PCI_DMA_BIDIRECTIONAL); + DMA_BIDIRECTIONAL); radix_tree_delete(&spt->vgpu->gtt.spt_tree, spt->shadow_page.mfn); @@ -849,7 +849,7 @@ retry: */ spt->shadow_page.type = type; daddr = dma_map_page(kdev, spt->shadow_page.page, - 0, 4096, PCI_DMA_BIDIRECTIONAL); + 0, 4096, DMA_BIDIRECTIONAL); if (dma_mapping_error(kdev, daddr)) { gvt_vgpu_err("fail to map dma addr\n"); ret = -EINVAL; @@ -865,7 +865,7 @@ retry: return spt; err_unmap_dma: - dma_unmap_page(kdev, daddr, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); + dma_unmap_page(kdev, daddr, PAGE_SIZE, DMA_BIDIRECTIONAL); err_free_spt: free_spt(spt); return ERR_PTR(ret); @@ -2409,8 +2409,7 @@ static int alloc_scratch_pages(struct intel_vgpu *vgpu, return -ENOMEM; } - daddr = dma_map_page(dev, virt_to_page(scratch_pt), 0, - 4096, PCI_DMA_BIDIRECTIONAL); + daddr = dma_map_page(dev, virt_to_page(scratch_pt), 0, 4096, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, daddr)) { gvt_vgpu_err("fail to dmamap scratch_pt\n"); __free_page(virt_to_page(scratch_pt)); @@ -2461,7 +2460,7 @@ static int release_scratch_page_tree(struct intel_vgpu *vgpu) if (vgpu->gtt.scratch_pt[i].page != NULL) { daddr = (dma_addr_t)(vgpu->gtt.scratch_pt[i].page_mfn << I915_GTT_PAGE_SHIFT); - dma_unmap_page(dev, daddr, 4096, PCI_DMA_BIDIRECTIONAL); + dma_unmap_page(dev, daddr, 4096, DMA_BIDIRECTIONAL); __free_page(vgpu->gtt.scratch_pt[i].page); vgpu->gtt.scratch_pt[i].page = NULL; vgpu->gtt.scratch_pt[i].page_mfn = 0; @@ -2741,7 +2740,7 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt) } daddr = dma_map_page(dev, virt_to_page(page), 0, - 4096, PCI_DMA_BIDIRECTIONAL); + 4096, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, daddr)) { gvt_err("fail to dmamap scratch ggtt page\n"); __free_page(virt_to_page(page)); @@ -2755,7 +2754,7 @@ int intel_gvt_init_gtt(struct intel_gvt *gvt) ret = setup_spt_oos(gvt); if (ret) { gvt_err("fail to initialize SPT oos\n"); - dma_unmap_page(dev, daddr, 4096, PCI_DMA_BIDIRECTIONAL); + dma_unmap_page(dev, daddr, 4096, DMA_BIDIRECTIONAL); __free_page(gvt->gtt.scratch_page); return ret; } @@ -2779,7 +2778,7 @@ void intel_gvt_clean_gtt(struct intel_gvt *gvt) dma_addr_t daddr = (dma_addr_t)(gvt->gtt.scratch_mfn << I915_GTT_PAGE_SHIFT); - dma_unmap_page(dev, daddr, 4096, PCI_DMA_BIDIRECTIONAL); + dma_unmap_page(dev, daddr, 4096, DMA_BIDIRECTIONAL); __free_page(gvt->gtt.scratch_page); diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 7efa386449d1..20b82fb036f8 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -328,7 +328,7 @@ static int gvt_dma_map_page(struct intel_vgpu *vgpu, unsigned long gfn, return ret; /* Setup DMA mapping. */ - *dma_addr = dma_map_page(dev, page, 0, size, PCI_DMA_BIDIRECTIONAL); + *dma_addr = dma_map_page(dev, page, 0, size, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, *dma_addr)) { gvt_vgpu_err("DMA mapping failed for pfn 0x%lx, ret %d\n", page_to_pfn(page), ret); @@ -344,7 +344,7 @@ static void gvt_dma_unmap_page(struct intel_vgpu *vgpu, unsigned long gfn, { struct device *dev = vgpu->gvt->gt->i915->drm.dev; - dma_unmap_page(dev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); + dma_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL); gvt_unpin_guest_page(vgpu, gfn, size); } diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index b56a8e37a3cd..0d18e13e3468 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -1386,7 +1386,7 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu) enum intel_engine_id i; int ret; - ppgtt = i915_ppgtt_create(&i915->gt); + ppgtt = i915_ppgtt_create(&i915->gt, I915_BO_ALLOC_PM_EARLY); if (IS_ERR(ppgtt)) return PTR_ERR(ppgtt); diff --git a/drivers/gpu/drm/i915/i915_buddy.c b/drivers/gpu/drm/i915/i915_buddy.c index 7b274c51cac0..6e2ad68f8f3f 100644 --- a/drivers/gpu/drm/i915/i915_buddy.c +++ b/drivers/gpu/drm/i915/i915_buddy.c @@ -4,6 +4,7 @@ */ #include <linux/kmemleak.h> +#include <linux/sizes.h> #include "i915_buddy.h" @@ -82,6 +83,7 @@ int i915_buddy_init(struct i915_buddy_mm *mm, u64 size, u64 chunk_size) size = round_down(size, chunk_size); mm->size = size; + mm->avail = size; mm->chunk_size = chunk_size; mm->max_order = ilog2(size) - ilog2(chunk_size); @@ -155,6 +157,8 @@ void i915_buddy_fini(struct i915_buddy_mm *mm) i915_block_free(mm, mm->roots[i]); } + GEM_WARN_ON(mm->avail != mm->size); + kfree(mm->roots); kfree(mm->free_list); } @@ -230,6 +234,7 @@ void i915_buddy_free(struct i915_buddy_mm *mm, struct i915_buddy_block *block) { GEM_BUG_ON(!i915_buddy_block_is_allocated(block)); + mm->avail += i915_buddy_block_size(mm, block); __i915_buddy_free(mm, block); } @@ -283,6 +288,7 @@ i915_buddy_alloc(struct i915_buddy_mm *mm, unsigned int order) } mark_allocated(block); + mm->avail -= i915_buddy_block_size(mm, block); kmemleak_update_trace(block); return block; @@ -368,6 +374,7 @@ int i915_buddy_alloc_range(struct i915_buddy_mm *mm, } mark_allocated(block); + mm->avail -= i915_buddy_block_size(mm, block); list_add_tail(&block->link, &allocated); continue; } @@ -402,6 +409,44 @@ err_free: return err; } +void i915_buddy_block_print(struct i915_buddy_mm *mm, + struct i915_buddy_block *block, + struct drm_printer *p) +{ + u64 start = i915_buddy_block_offset(block); + u64 size = i915_buddy_block_size(mm, block); + + drm_printf(p, "%#018llx-%#018llx: %llu\n", start, start + size, size); +} + +void i915_buddy_print(struct i915_buddy_mm *mm, struct drm_printer *p) +{ + int order; + + drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB\n", + mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20); + + for (order = mm->max_order; order >= 0; order--) { + struct i915_buddy_block *block; + u64 count = 0, free; + + list_for_each_entry(block, &mm->free_list[order], link) { + GEM_BUG_ON(!i915_buddy_block_is_free(block)); + count++; + } + + drm_printf(p, "order-%d ", order); + + free = count * (mm->chunk_size << order); + if (free < SZ_1M) + drm_printf(p, "free: %lluKiB", free >> 10); + else + drm_printf(p, "free: %lluMiB", free >> 20); + + drm_printf(p, ", pages: %llu\n", count); + } +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftests/i915_buddy.c" #endif diff --git a/drivers/gpu/drm/i915/i915_buddy.h b/drivers/gpu/drm/i915/i915_buddy.h index 3940d632f208..7077742112ac 100644 --- a/drivers/gpu/drm/i915/i915_buddy.h +++ b/drivers/gpu/drm/i915/i915_buddy.h @@ -10,6 +10,8 @@ #include <linux/list.h> #include <linux/slab.h> +#include <drm/drm_print.h> + struct i915_buddy_block { #define I915_BUDDY_HEADER_OFFSET GENMASK_ULL(63, 12) #define I915_BUDDY_HEADER_STATE GENMASK_ULL(11, 10) @@ -69,6 +71,7 @@ struct i915_buddy_mm { /* Must be at least PAGE_SIZE */ u64 chunk_size; u64 size; + u64 avail; }; static inline u64 @@ -129,6 +132,11 @@ void i915_buddy_free(struct i915_buddy_mm *mm, struct i915_buddy_block *block); void i915_buddy_free_list(struct i915_buddy_mm *mm, struct list_head *objects); +void i915_buddy_print(struct i915_buddy_mm *mm, struct drm_printer *p); +void i915_buddy_block_print(struct i915_buddy_mm *mm, + struct i915_buddy_block *block, + struct drm_printer *p); + void i915_buddy_module_exit(void); int i915_buddy_module_init(void); diff --git a/drivers/gpu/drm/i915/i915_config.c b/drivers/gpu/drm/i915/i915_config.c index b79b5f6d2cfa..afb828dab53b 100644 --- a/drivers/gpu/drm/i915/i915_config.c +++ b/drivers/gpu/drm/i915/i915_config.c @@ -8,7 +8,7 @@ unsigned long i915_fence_context_timeout(const struct drm_i915_private *i915, u64 context) { - if (context && IS_ACTIVE(CONFIG_DRM_I915_FENCE_TIMEOUT)) + if (CONFIG_DRM_I915_FENCE_TIMEOUT && context) return msecs_to_jiffies_timeout(CONFIG_DRM_I915_FENCE_TIMEOUT); return 0; diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 44969f5dde50..fdbd46ff59e0 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -32,13 +32,14 @@ #include <drm/drm_debugfs.h> #include "gem/i915_gem_context.h" +#include "gt/intel_gt.h" #include "gt/intel_gt_buffer_pool.h" #include "gt/intel_gt_clock_utils.h" -#include "gt/intel_gt.h" #include "gt/intel_gt_pm.h" +#include "gt/intel_gt_pm_debugfs.h" #include "gt/intel_gt_requests.h" -#include "gt/intel_reset.h" #include "gt/intel_rc6.h" +#include "gt/intel_reset.h" #include "gt/intel_rps.h" #include "gt/intel_sseu_debugfs.h" @@ -139,7 +140,6 @@ void i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) { struct drm_i915_private *dev_priv = to_i915(obj->base.dev); - struct intel_engine_cs *engine; struct i915_vma *vma; int pin_count = 0; @@ -229,15 +229,12 @@ i915_debugfs_describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) seq_printf(m, " (stolen: %08llx)", obj->stolen->start); if (i915_gem_object_is_framebuffer(obj)) seq_printf(m, " (fb)"); - - engine = i915_gem_object_last_write_engine(obj); - if (engine) - seq_printf(m, " (%s)", engine->name); } static int i915_gem_object_info(struct seq_file *m, void *data) { struct drm_i915_private *i915 = node_to_i915(m->private); + struct drm_printer p = drm_seq_file_printer(m); struct intel_memory_region *mr; enum intel_region_id id; @@ -246,8 +243,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data) atomic_read(&i915->mm.free_count), i915->mm.shrink_memory); for_each_memory_region(mr, i915, id) - seq_printf(m, "%s: total:%pa, available:%pa bytes\n", - mr->name, &mr->total, &mr->avail); + intel_memory_region_debug(mr, &p); return 0; } @@ -354,232 +350,12 @@ static const struct file_operations i915_error_state_fops = { static int i915_frequency_info(struct seq_file *m, void *unused) { - struct drm_i915_private *dev_priv = node_to_i915(m->private); - struct intel_uncore *uncore = &dev_priv->uncore; - struct intel_rps *rps = &dev_priv->gt.rps; - intel_wakeref_t wakeref; - - wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm); - - if (GRAPHICS_VER(dev_priv) == 5) { - u16 rgvswctl = intel_uncore_read16(uncore, MEMSWCTL); - u16 rgvstat = intel_uncore_read16(uncore, MEMSTAT_ILK); - - seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf); - seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f); - seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >> - MEMSTAT_VID_SHIFT); - seq_printf(m, "Current P-state: %d\n", - (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT); - } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { - u32 rpmodectl, freq_sts; - - rpmodectl = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CONTROL); - seq_printf(m, "Video Turbo Mode: %s\n", - yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); - seq_printf(m, "HW control enabled: %s\n", - yesno(rpmodectl & GEN6_RP_ENABLE)); - seq_printf(m, "SW control enabled: %s\n", - yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == - GEN6_RP_MEDIA_SW_MODE)); - - vlv_punit_get(dev_priv); - freq_sts = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); - vlv_punit_put(dev_priv); - - seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts); - seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq); - - seq_printf(m, "actual GPU freq: %d MHz\n", - intel_gpu_freq(rps, (freq_sts >> 8) & 0xff)); - - seq_printf(m, "current GPU freq: %d MHz\n", - intel_gpu_freq(rps, rps->cur_freq)); - - seq_printf(m, "max GPU freq: %d MHz\n", - intel_gpu_freq(rps, rps->max_freq)); - - seq_printf(m, "min GPU freq: %d MHz\n", - intel_gpu_freq(rps, rps->min_freq)); - - seq_printf(m, "idle GPU freq: %d MHz\n", - intel_gpu_freq(rps, rps->idle_freq)); - - seq_printf(m, - "efficient (RPe) frequency: %d MHz\n", - intel_gpu_freq(rps, rps->efficient_freq)); - } else if (GRAPHICS_VER(dev_priv) >= 6) { - u32 rp_state_limits; - u32 gt_perf_status; - u32 rp_state_cap; - u32 rpmodectl, rpinclimit, rpdeclimit; - u32 rpstat, cagf, reqf; - u32 rpupei, rpcurup, rpprevup; - u32 rpdownei, rpcurdown, rpprevdown; - u32 pm_ier, pm_imr, pm_isr, pm_iir, pm_mask; - int max_freq; - - rp_state_limits = intel_uncore_read(&dev_priv->uncore, GEN6_RP_STATE_LIMITS); - if (IS_GEN9_LP(dev_priv)) { - rp_state_cap = intel_uncore_read(&dev_priv->uncore, BXT_RP_STATE_CAP); - gt_perf_status = intel_uncore_read(&dev_priv->uncore, BXT_GT_PERF_STATUS); - } else { - rp_state_cap = intel_uncore_read(&dev_priv->uncore, GEN6_RP_STATE_CAP); - gt_perf_status = intel_uncore_read(&dev_priv->uncore, GEN6_GT_PERF_STATUS); - } - - /* RPSTAT1 is in the GT power well */ - intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL); - - reqf = intel_uncore_read(&dev_priv->uncore, GEN6_RPNSWREQ); - if (GRAPHICS_VER(dev_priv) >= 9) - reqf >>= 23; - else { - reqf &= ~GEN6_TURBO_DISABLE; - if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) - reqf >>= 24; - else - reqf >>= 25; - } - reqf = intel_gpu_freq(rps, reqf); - - rpmodectl = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CONTROL); - rpinclimit = intel_uncore_read(&dev_priv->uncore, GEN6_RP_UP_THRESHOLD); - rpdeclimit = intel_uncore_read(&dev_priv->uncore, GEN6_RP_DOWN_THRESHOLD); - - rpstat = intel_uncore_read(&dev_priv->uncore, GEN6_RPSTAT1); - rpupei = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CUR_UP_EI) & GEN6_CURICONT_MASK; - rpcurup = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CUR_UP) & GEN6_CURBSYTAVG_MASK; - rpprevup = intel_uncore_read(&dev_priv->uncore, GEN6_RP_PREV_UP) & GEN6_CURBSYTAVG_MASK; - rpdownei = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CUR_DOWN_EI) & GEN6_CURIAVG_MASK; - rpcurdown = intel_uncore_read(&dev_priv->uncore, GEN6_RP_CUR_DOWN) & GEN6_CURBSYTAVG_MASK; - rpprevdown = intel_uncore_read(&dev_priv->uncore, GEN6_RP_PREV_DOWN) & GEN6_CURBSYTAVG_MASK; - cagf = intel_rps_read_actual_frequency(rps); - - intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL); - - if (GRAPHICS_VER(dev_priv) >= 11) { - pm_ier = intel_uncore_read(&dev_priv->uncore, GEN11_GPM_WGBOXPERF_INTR_ENABLE); - pm_imr = intel_uncore_read(&dev_priv->uncore, GEN11_GPM_WGBOXPERF_INTR_MASK); - /* - * The equivalent to the PM ISR & IIR cannot be read - * without affecting the current state of the system - */ - pm_isr = 0; - pm_iir = 0; - } else if (GRAPHICS_VER(dev_priv) >= 8) { - pm_ier = intel_uncore_read(&dev_priv->uncore, GEN8_GT_IER(2)); - pm_imr = intel_uncore_read(&dev_priv->uncore, GEN8_GT_IMR(2)); - pm_isr = intel_uncore_read(&dev_priv->uncore, GEN8_GT_ISR(2)); - pm_iir = intel_uncore_read(&dev_priv->uncore, GEN8_GT_IIR(2)); - } else { - pm_ier = intel_uncore_read(&dev_priv->uncore, GEN6_PMIER); - pm_imr = intel_uncore_read(&dev_priv->uncore, GEN6_PMIMR); - pm_isr = intel_uncore_read(&dev_priv->uncore, GEN6_PMISR); - pm_iir = intel_uncore_read(&dev_priv->uncore, GEN6_PMIIR); - } - pm_mask = intel_uncore_read(&dev_priv->uncore, GEN6_PMINTRMSK); - - seq_printf(m, "Video Turbo Mode: %s\n", - yesno(rpmodectl & GEN6_RP_MEDIA_TURBO)); - seq_printf(m, "HW control enabled: %s\n", - yesno(rpmodectl & GEN6_RP_ENABLE)); - seq_printf(m, "SW control enabled: %s\n", - yesno((rpmodectl & GEN6_RP_MEDIA_MODE_MASK) == - GEN6_RP_MEDIA_SW_MODE)); - - seq_printf(m, "PM IER=0x%08x IMR=0x%08x, MASK=0x%08x\n", - pm_ier, pm_imr, pm_mask); - if (GRAPHICS_VER(dev_priv) <= 10) - seq_printf(m, "PM ISR=0x%08x IIR=0x%08x\n", - pm_isr, pm_iir); - seq_printf(m, "pm_intrmsk_mbz: 0x%08x\n", - rps->pm_intrmsk_mbz); - seq_printf(m, "GT_PERF_STATUS: 0x%08x\n", gt_perf_status); - seq_printf(m, "Render p-state ratio: %d\n", - (gt_perf_status & (GRAPHICS_VER(dev_priv) >= 9 ? 0x1ff00 : 0xff00)) >> 8); - seq_printf(m, "Render p-state VID: %d\n", - gt_perf_status & 0xff); - seq_printf(m, "Render p-state limit: %d\n", - rp_state_limits & 0xff); - seq_printf(m, "RPSTAT1: 0x%08x\n", rpstat); - seq_printf(m, "RPMODECTL: 0x%08x\n", rpmodectl); - seq_printf(m, "RPINCLIMIT: 0x%08x\n", rpinclimit); - seq_printf(m, "RPDECLIMIT: 0x%08x\n", rpdeclimit); - seq_printf(m, "RPNSWREQ: %dMHz\n", reqf); - seq_printf(m, "CAGF: %dMHz\n", cagf); - seq_printf(m, "RP CUR UP EI: %d (%lldns)\n", - rpupei, - intel_gt_pm_interval_to_ns(&dev_priv->gt, rpupei)); - seq_printf(m, "RP CUR UP: %d (%lldun)\n", - rpcurup, - intel_gt_pm_interval_to_ns(&dev_priv->gt, rpcurup)); - seq_printf(m, "RP PREV UP: %d (%lldns)\n", - rpprevup, - intel_gt_pm_interval_to_ns(&dev_priv->gt, rpprevup)); - seq_printf(m, "Up threshold: %d%%\n", - rps->power.up_threshold); - - seq_printf(m, "RP CUR DOWN EI: %d (%lldns)\n", - rpdownei, - intel_gt_pm_interval_to_ns(&dev_priv->gt, - rpdownei)); - seq_printf(m, "RP CUR DOWN: %d (%lldns)\n", - rpcurdown, - intel_gt_pm_interval_to_ns(&dev_priv->gt, - rpcurdown)); - seq_printf(m, "RP PREV DOWN: %d (%lldns)\n", - rpprevdown, - intel_gt_pm_interval_to_ns(&dev_priv->gt, - rpprevdown)); - seq_printf(m, "Down threshold: %d%%\n", - rps->power.down_threshold); - - max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 : - rp_state_cap >> 16) & 0xff; - max_freq *= (IS_GEN9_BC(dev_priv) || - GRAPHICS_VER(dev_priv) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Lowest (RPN) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); - - max_freq = (rp_state_cap & 0xff00) >> 8; - max_freq *= (IS_GEN9_BC(dev_priv) || - GRAPHICS_VER(dev_priv) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Nominal (RP1) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); - - max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 : - rp_state_cap >> 0) & 0xff; - max_freq *= (IS_GEN9_BC(dev_priv) || - GRAPHICS_VER(dev_priv) >= 11 ? GEN9_FREQ_SCALER : 1); - seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n", - intel_gpu_freq(rps, max_freq)); - seq_printf(m, "Max overclocked frequency: %dMHz\n", - intel_gpu_freq(rps, rps->max_freq)); - - seq_printf(m, "Current freq: %d MHz\n", - intel_gpu_freq(rps, rps->cur_freq)); - seq_printf(m, "Actual freq: %d MHz\n", cagf); - seq_printf(m, "Idle freq: %d MHz\n", - intel_gpu_freq(rps, rps->idle_freq)); - seq_printf(m, "Min freq: %d MHz\n", - intel_gpu_freq(rps, rps->min_freq)); - seq_printf(m, "Boost freq: %d MHz\n", - intel_gpu_freq(rps, rps->boost_freq)); - seq_printf(m, "Max freq: %d MHz\n", - intel_gpu_freq(rps, rps->max_freq)); - seq_printf(m, - "efficient (RPe) frequency: %d MHz\n", - intel_gpu_freq(rps, rps->efficient_freq)); - } else { - seq_puts(m, "no P-state info available\n"); - } + struct drm_i915_private *i915 = node_to_i915(m->private); + struct intel_gt *gt = &i915->gt; + struct drm_printer p = drm_seq_file_printer(m); - seq_printf(m, "Current CD clock frequency: %d kHz\n", dev_priv->cdclk.hw.cdclk); - seq_printf(m, "Max CD clock frequency: %d kHz\n", dev_priv->max_cdclk_freq); - seq_printf(m, "Max pixel clock frequency: %d kHz\n", dev_priv->max_dotclk_freq); + intel_gt_pm_frequency_dump(gt, &p); - intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref); return 0; } diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index d9f208802ae0..c65c3742887a 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -67,6 +67,8 @@ #include "gt/intel_gt_pm.h" #include "gt/intel_rc6.h" +#include "pxp/intel_pxp_pm.h" + #include "i915_debugfs.h" #include "i915_drv.h" #include "i915_ioc32.h" @@ -589,8 +591,6 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv) pci_set_master(pdev); - intel_gt_init_workarounds(dev_priv); - /* On the 945G/GM, the chipset reports the MSI capability on the * integrated graphics even though the support isn't actually there * according to the published specs. It doesn't appear to function @@ -1097,9 +1097,7 @@ static int i915_drm_prepare(struct drm_device *dev) * split out that work and pull it forward so that after point, * the GPU is not woken again. */ - i915_gem_suspend(i915); - - return 0; + return i915_gem_backup_suspend(i915); } static int i915_drm_suspend(struct drm_device *dev) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 133dadecafdb..12256218634f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1040,7 +1040,11 @@ struct drm_i915_private { struct list_head global_obj_list; - struct i915_wa_list gt_wa_list; + /* + * For reading active_pipes holding any crtc lock is + * sufficient, for writing must hold all of them. + */ + u8 active_pipes; struct i915_frontbuffer_tracking fb_tracking; @@ -1721,6 +1725,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915, #define HAS_GLOBAL_MOCS_REGISTERS(dev_priv) (INTEL_INFO(dev_priv)->has_global_mocs) +#define HAS_PXP(dev_priv) ((IS_ENABLED(CONFIG_DRM_I915_PXP) && \ + INTEL_INFO(dev_priv)->has_pxp) && \ + VDBOX_MASK(&dev_priv->gt)) #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch) @@ -1902,11 +1909,11 @@ i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id) { struct i915_address_space *vm; - rcu_read_lock(); + xa_lock(&file_priv->vm_xa); vm = xa_load(&file_priv->vm_xa, id); - if (vm && !kref_get_unless_zero(&vm->ref)) - vm = NULL; - rcu_read_unlock(); + if (vm) + kref_get(&vm->ref); + xa_unlock(&file_priv->vm_xa); return vm; } diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 590efc8b0265..981e383d1a5d 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1139,8 +1139,6 @@ void i915_gem_driver_release(struct drm_i915_private *dev_priv) { intel_gt_driver_release(&dev_priv->gt); - intel_wa_list_free(&dev_priv->gt_wa_list); - intel_uc_cleanup_firmwares(&dev_priv->gt.uc); i915_gem_drain_freed_objects(dev_priv); diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 36489be4896b..cd5f2348a187 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -30,7 +30,7 @@ int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj, do { if (dma_map_sg_attrs(obj->base.dev->dev, pages->sgl, pages->nents, - PCI_DMA_BIDIRECTIONAL, + DMA_BIDIRECTIONAL, DMA_ATTR_SKIP_CPU_SYNC | DMA_ATTR_NO_KERNEL_MAPPING | DMA_ATTR_NO_WARN)) @@ -64,7 +64,7 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj, usleep_range(100, 250); dma_unmap_sg(i915->drm.dev, pages->sgl, pages->nents, - PCI_DMA_BIDIRECTIONAL); + DMA_BIDIRECTIONAL); } /** diff --git a/drivers/gpu/drm/i915/i915_gem_ww.h b/drivers/gpu/drm/i915/i915_gem_ww.h index f6b1a796667b..86f0fe343de6 100644 --- a/drivers/gpu/drm/i915/i915_gem_ww.h +++ b/drivers/gpu/drm/i915/i915_gem_ww.h @@ -11,8 +11,7 @@ struct i915_gem_ww_ctx { struct ww_acquire_ctx ctx; struct list_head obj_list; struct drm_i915_gem_object *contended; - unsigned short intr; - unsigned short loop; + bool intr; }; void i915_gem_ww_ctx_init(struct i915_gem_ww_ctx *ctx, bool intr); @@ -20,31 +19,23 @@ void i915_gem_ww_ctx_fini(struct i915_gem_ww_ctx *ctx); int __must_check i915_gem_ww_ctx_backoff(struct i915_gem_ww_ctx *ctx); void i915_gem_ww_unlock_single(struct drm_i915_gem_object *obj); -/* Internal functions used by the inlines! Don't use. */ +/* Internal function used by the inlines! Don't use. */ static inline int __i915_gem_ww_fini(struct i915_gem_ww_ctx *ww, int err) { - ww->loop = 0; if (err == -EDEADLK) { err = i915_gem_ww_ctx_backoff(ww); if (!err) - ww->loop = 1; + err = -EDEADLK; } - if (!ww->loop) + if (err != -EDEADLK) i915_gem_ww_ctx_fini(ww); return err; } -static inline void -__i915_gem_ww_init(struct i915_gem_ww_ctx *ww, bool intr) -{ - i915_gem_ww_ctx_init(ww, intr); - ww->loop = 1; -} - -#define for_i915_gem_ww(_ww, _err, _intr) \ - for (__i915_gem_ww_init(_ww, _intr); (_ww)->loop; \ - _err = __i915_gem_ww_fini(_ww, _err)) - +#define for_i915_gem_ww(_ww, _err, _intr) \ + for (i915_gem_ww_ctx_init(_ww, _intr), (_err) = -EDEADLK; \ + (_err) == -EDEADLK; \ + (_err) = __i915_gem_ww_fini(_ww, _err)) #endif diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 9cf6ac575de1..2a2d7643b551 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -431,6 +431,7 @@ static void error_print_instdone(struct drm_i915_error_state_buf *m, const struct sseu_dev_info *sseu = &ee->engine->gt->info.sseu; int slice; int subslice; + int iter; err_printf(m, " INSTDONE: 0x%08x\n", ee->instdone.instdone); @@ -444,19 +445,38 @@ static void error_print_instdone(struct drm_i915_error_state_buf *m, if (GRAPHICS_VER(m->i915) <= 6) return; - for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice) - err_printf(m, " SAMPLER_INSTDONE[%d][%d]: 0x%08x\n", - slice, subslice, - ee->instdone.sampler[slice][subslice]); + if (GRAPHICS_VER_FULL(m->i915) >= IP_VER(12, 50)) { + for_each_instdone_gslice_dss_xehp(m->i915, sseu, iter, slice, subslice) + err_printf(m, " SAMPLER_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, + ee->instdone.sampler[slice][subslice]); - for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice) - err_printf(m, " ROW_INSTDONE[%d][%d]: 0x%08x\n", - slice, subslice, - ee->instdone.row[slice][subslice]); + for_each_instdone_gslice_dss_xehp(m->i915, sseu, iter, slice, subslice) + err_printf(m, " ROW_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, + ee->instdone.row[slice][subslice]); + } else { + for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice) + err_printf(m, " SAMPLER_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, + ee->instdone.sampler[slice][subslice]); + + for_each_instdone_slice_subslice(m->i915, sseu, slice, subslice) + err_printf(m, " ROW_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, + ee->instdone.row[slice][subslice]); + } if (GRAPHICS_VER(m->i915) < 12) return; + if (GRAPHICS_VER_FULL(m->i915) >= IP_VER(12, 55)) { + for_each_instdone_gslice_dss_xehp(m->i915, sseu, iter, slice, subslice) + err_printf(m, " GEOM_SVGUNIT_INSTDONE[%d][%d]: 0x%08x\n", + slice, subslice, + ee->instdone.geom_svg[slice][subslice]); + } + err_printf(m, " SC_INSTDONE_EXTRA: 0x%08x\n", ee->instdone.slice_common_extra[0]); err_printf(m, " SC_INSTDONE_EXTRA2: 0x%08x\n", @@ -733,7 +753,8 @@ static void err_print_gt(struct drm_i915_error_state_buf *m, * only exists if the corresponding VCS engine is * present. */ - if (!HAS_ENGINE(gt->_gt, _VCS(i * 2))) + if ((gt->_gt->info.sfc_mask & BIT(i)) == 0 || + !HAS_ENGINE(gt->_gt, _VCS(i * 2))) continue; err_printf(m, " SFC_DONE[%d]: 0x%08x\n", i, @@ -1612,7 +1633,8 @@ static void gt_record_regs(struct intel_gt_coredump *gt) * only exists if the corresponding VCS engine is * present. */ - if (!HAS_ENGINE(gt->_gt, _VCS(i * 2))) + if ((gt->_gt->info.sfc_mask & BIT(i)) == 0 || + !HAS_ENGINE(gt->_gt, _VCS(i * 2))) continue; gt->sfc_done[i] = diff --git a/drivers/gpu/drm/i915/i915_module.c b/drivers/gpu/drm/i915/i915_module.c index d8b4482c69d0..ab2295dd4500 100644 --- a/drivers/gpu/drm/i915/i915_module.c +++ b/drivers/gpu/drm/i915/i915_module.c @@ -67,8 +67,8 @@ static const struct { { .init = i915_mock_selftests }, { .init = i915_pmu_init, .exit = i915_pmu_exit }, - { .init = i915_register_pci_driver, - .exit = i915_unregister_pci_driver }, + { .init = i915_pci_register_driver, + .exit = i915_pci_unregister_driver }, { .init = i915_perf_sysctl_register, .exit = i915_perf_sysctl_unregister }, }; diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index 52c04369559f..169837de395d 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -865,6 +865,7 @@ static const struct intel_device_info jsl_info = { }, \ TGL_CURSOR_OFFSETS, \ .has_global_mocs = 1, \ + .has_pxp = 1, \ .display.has_dsb = 1 static const struct intel_device_info tgl_info = { @@ -891,10 +892,11 @@ static const struct intel_device_info rkl_info = { #define DGFX_FEATURES \ .memory_regions = REGION_SMEM | REGION_LMEM | REGION_STOLEN_LMEM, \ .has_llc = 0, \ + .has_pxp = 0, \ .has_snoop = 1, \ .is_dgfx = 1 -static const struct intel_device_info dg1_info __maybe_unused = { +static const struct intel_device_info dg1_info = { GEN12_FEATURES, DGFX_FEATURES, .graphics_rel = 10, @@ -912,7 +914,6 @@ static const struct intel_device_info adl_s_info = { GEN12_FEATURES, PLATFORM(INTEL_ALDERLAKE_S), .pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D), - .require_force_probe = 1, .display.has_hti = 1, .display.has_psr_hw_tracking = 0, .platform_engine_mask = @@ -1115,6 +1116,7 @@ static const struct pci_device_id pciidlist[] = { INTEL_RKL_IDS(&rkl_info), INTEL_ADLS_IDS(&adl_s_info), INTEL_ADLP_IDS(&adl_p_info), + INTEL_DG1_IDS(&dg1_info), {0, 0, 0} }; MODULE_DEVICE_TABLE(pci, pciidlist); @@ -1234,12 +1236,12 @@ static struct pci_driver i915_pci_driver = { .driver.pm = &i915_pm_ops, }; -int i915_register_pci_driver(void) +int i915_pci_register_driver(void) { return pci_register_driver(&i915_pci_driver); } -void i915_unregister_pci_driver(void) +void i915_pci_unregister_driver(void) { pci_unregister_driver(&i915_pci_driver); } diff --git a/drivers/gpu/drm/i915/i915_pci.h b/drivers/gpu/drm/i915/i915_pci.h index b386f319f52e..ee048c238174 100644 --- a/drivers/gpu/drm/i915/i915_pci.h +++ b/drivers/gpu/drm/i915/i915_pci.h @@ -1,8 +1,12 @@ +/* SPDX-License-Identifier: MIT */ /* - * SPDX-License-Identifier: MIT - * * Copyright © 2021 Intel Corporation */ -int i915_register_pci_driver(void); -void i915_unregister_pci_driver(void); +#ifndef __I915_PCI_H__ +#define __I915_PCI_H__ + +int i915_pci_register_driver(void); +void i915_pci_unregister_driver(void); + +#endif /* __I915_PCI_H__ */ diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index e49da36c62fb..5e2b909827f4 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -432,9 +432,6 @@ static int query_memregion_info(struct drm_i915_private *i915, u32 total_length; int ret, id, i; - if (!IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM)) - return -ENODEV; - if (query_item->flags != 0) return -EINVAL; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c6e883bd4850..3e1baf9356ec 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2555,6 +2555,32 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define RING_HWS_PGA(base) _MMIO((base) + 0x80) #define RING_ID(base) _MMIO((base) + 0x8c) #define RING_HWS_PGA_GEN6(base) _MMIO((base) + 0x2080) + +#define RING_CMD_CCTL(base) _MMIO((base) + 0xc4) +/* + * CMD_CCTL read/write fields take a MOCS value and _not_ a table index. + * The lsb of each can be considered a separate enabling bit for encryption. + * 6:0 == default MOCS value for reads => 6:1 == table index for reads. + * 13:7 == default MOCS value for writes => 13:8 == table index for writes. + * 15:14 == Reserved => 31:30 are set to 0. + */ +#define CMD_CCTL_WRITE_OVERRIDE_MASK REG_GENMASK(13, 7) +#define CMD_CCTL_READ_OVERRIDE_MASK REG_GENMASK(6, 0) +#define CMD_CCTL_MOCS_MASK (CMD_CCTL_WRITE_OVERRIDE_MASK | \ + CMD_CCTL_READ_OVERRIDE_MASK) +#define CMD_CCTL_MOCS_OVERRIDE(write, read) \ + (REG_FIELD_PREP(CMD_CCTL_WRITE_OVERRIDE_MASK, (write) << 1) | \ + REG_FIELD_PREP(CMD_CCTL_READ_OVERRIDE_MASK, (read) << 1)) + +#define BLIT_CCTL(base) _MMIO((base) + 0x204) +#define BLIT_CCTL_DST_MOCS_MASK REG_GENMASK(14, 8) +#define BLIT_CCTL_SRC_MOCS_MASK REG_GENMASK(6, 0) +#define BLIT_CCTL_MASK (BLIT_CCTL_DST_MOCS_MASK | \ + BLIT_CCTL_SRC_MOCS_MASK) +#define BLIT_CCTL_MOCS(dst, src) \ + (REG_FIELD_PREP(BLIT_CCTL_DST_MOCS_MASK, (dst) << 1) | \ + REG_FIELD_PREP(BLIT_CCTL_SRC_MOCS_MASK, (src) << 1)) + #define RING_RESET_CTL(base) _MMIO((base) + 0xd0) #define RESET_CTL_CAT_ERROR REG_BIT(2) #define RESET_CTL_READY_TO_RESET REG_BIT(1) @@ -2690,6 +2716,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN12_SC_INSTDONE_EXTRA2 _MMIO(0x7108) #define GEN7_SAMPLER_INSTDONE _MMIO(0xe160) #define GEN7_ROW_INSTDONE _MMIO(0xe164) +#define XEHPG_INSTDONE_GEOM_SVG _MMIO(0x666c) #define MCFG_MCR_SELECTOR _MMIO(0xfd0) #define SF_MCR_SELECTOR _MMIO(0xfd8) #define GEN8_MCR_SELECTOR _MMIO(0xfdc) @@ -2824,6 +2851,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define MI_MODE _MMIO(0x209c) # define VS_TIMER_DISPATCH (1 << 6) # define MI_FLUSH_ENABLE (1 << 12) +# define TGL_NESTED_BB_EN (1 << 12) # define ASYNC_FLIP_PERF_DISABLE (1 << 14) # define MODE_IDLE (1 << 9) # define STOP_RING (1 << 8) @@ -3084,8 +3112,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) /* Fuse readout registers for GT */ #define HSW_PAVP_FUSE1 _MMIO(0x911C) -#define HSW_F1_EU_DIS_SHIFT 16 -#define HSW_F1_EU_DIS_MASK (0x3 << HSW_F1_EU_DIS_SHIFT) +#define XEHP_SFC_ENABLE_MASK REG_GENMASK(27, 24) +#define HSW_F1_EU_DIS_MASK REG_GENMASK(17, 16) #define HSW_F1_EU_DIS_10EUS 0 #define HSW_F1_EU_DIS_8EUS 1 #define HSW_F1_EU_DIS_6EUS 2 @@ -3154,7 +3182,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define GEN11_GT_SUBSLICE_DISABLE _MMIO(0x913C) -#define GEN12_GT_DSS_ENABLE _MMIO(0x913C) +#define GEN12_GT_GEOMETRY_DSS_ENABLE _MMIO(0x913C) +#define GEN12_GT_COMPUTE_DSS_ENABLE _MMIO(0x9144) #define XEHP_EU_ENABLE _MMIO(0x9134) #define XEHP_EU_ENA_MASK 0xFF @@ -4121,6 +4150,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define RPN_CAP_MASK REG_GENMASK(23, 16) #define BXT_RP_STATE_CAP _MMIO(0x138170) #define GEN9_RP_STATE_LIMITS _MMIO(0x138148) +#define XEHPSDV_RP_STATE_CAP _MMIO(0x250014) /* * Logical Context regs @@ -7228,6 +7258,7 @@ enum { #define _PLANE_COLOR_CTL_3_A 0x703CC /* GLK+ */ #define PLANE_COLOR_PIPE_GAMMA_ENABLE (1 << 30) /* Pre-ICL */ #define PLANE_COLOR_YUV_RANGE_CORRECTION_DISABLE (1 << 28) +#define PLANE_COLOR_PLANE_CSC_ENABLE REG_BIT(21) /* ICL+ */ #define PLANE_COLOR_INPUT_CSC_ENABLE (1 << 20) /* ICL+ */ #define PLANE_COLOR_PIPE_CSC_ENABLE (1 << 23) /* Pre-ICL */ #define PLANE_COLOR_CSC_MODE_BYPASS (0 << 17) @@ -7351,6 +7382,7 @@ enum { #define _PLANE_SURF_3(pipe) _PIPE(pipe, _PLANE_SURF_3_A, _PLANE_SURF_3_B) #define PLANE_SURF(pipe, plane) \ _MMIO_PLANE(plane, _PLANE_SURF_1(pipe), _PLANE_SURF_2(pipe)) +#define PLANE_SURF_DECRYPT REG_BIT(2) #define _PLANE_OFFSET_1_B 0x711a4 #define _PLANE_OFFSET_2_B 0x712a4 @@ -8092,6 +8124,7 @@ enum { /* irq instances for OTHER_CLASS */ #define OTHER_GUC_INSTANCE 0 #define OTHER_GTPM_INSTANCE 1 +#define OTHER_KCR_INSTANCE 4 #define GEN11_INTR_IDENTITY_REG(x) _MMIO(0x190060 + ((x) * 4)) @@ -11373,6 +11406,51 @@ enum skl_power_gate { _PAL_PREC_MULTI_SEG_DATA_A, \ _PAL_PREC_MULTI_SEG_DATA_B) +#define _MMIO_PLANE_GAMC(plane, i, a, b) _MMIO(_PIPE(plane, a, b) + (i) * 4) + +/* Plane CSC Registers */ +#define _PLANE_CSC_RY_GY_1_A 0x70210 +#define _PLANE_CSC_RY_GY_2_A 0x70310 + +#define _PLANE_CSC_RY_GY_1_B 0x71210 +#define _PLANE_CSC_RY_GY_2_B 0x71310 + +#define _PLANE_CSC_RY_GY_1(pipe) _PIPE(pipe, _PLANE_CSC_RY_GY_1_A, \ + _PLANE_CSC_RY_GY_1_B) +#define _PLANE_CSC_RY_GY_2(pipe) _PIPE(pipe, _PLANE_INPUT_CSC_RY_GY_2_A, \ + _PLANE_INPUT_CSC_RY_GY_2_B) +#define PLANE_CSC_COEFF(pipe, plane, index) _MMIO_PLANE(plane, \ + _PLANE_CSC_RY_GY_1(pipe) + (index) * 4, \ + _PLANE_CSC_RY_GY_2(pipe) + (index) * 4) + +#define _PLANE_CSC_PREOFF_HI_1_A 0x70228 +#define _PLANE_CSC_PREOFF_HI_2_A 0x70328 + +#define _PLANE_CSC_PREOFF_HI_1_B 0x71228 +#define _PLANE_CSC_PREOFF_HI_2_B 0x71328 + +#define _PLANE_CSC_PREOFF_HI_1(pipe) _PIPE(pipe, _PLANE_CSC_PREOFF_HI_1_A, \ + _PLANE_CSC_PREOFF_HI_1_B) +#define _PLANE_CSC_PREOFF_HI_2(pipe) _PIPE(pipe, _PLANE_CSC_PREOFF_HI_2_A, \ + _PLANE_CSC_PREOFF_HI_2_B) +#define PLANE_CSC_PREOFF(pipe, plane, index) _MMIO_PLANE(plane, _PLANE_CSC_PREOFF_HI_1(pipe) + \ + (index) * 4, _PLANE_CSC_PREOFF_HI_2(pipe) + \ + (index) * 4) + +#define _PLANE_CSC_POSTOFF_HI_1_A 0x70234 +#define _PLANE_CSC_POSTOFF_HI_2_A 0x70334 + +#define _PLANE_CSC_POSTOFF_HI_1_B 0x71234 +#define _PLANE_CSC_POSTOFF_HI_2_B 0x71334 + +#define _PLANE_CSC_POSTOFF_HI_1(pipe) _PIPE(pipe, _PLANE_CSC_POSTOFF_HI_1_A, \ + _PLANE_CSC_POSTOFF_HI_1_B) +#define _PLANE_CSC_POSTOFF_HI_2(pipe) _PIPE(pipe, _PLANE_CSC_POSTOFF_HI_2_A, \ + _PLANE_CSC_POSTOFF_HI_2_B) +#define PLANE_CSC_POSTOFF(pipe, plane, index) _MMIO_PLANE(plane, _PLANE_CSC_POSTOFF_HI_1(pipe) + \ + (index) * 4, _PLANE_CSC_POSTOFF_HI_2(pipe) + \ + (index) * 4) + /* pipe CSC & degamma/gamma LUTs on CHV */ #define _CGM_PIPE_A_CSC_COEFF01 (VLV_DISPLAY_BASE + 0x67900) #define _CGM_PIPE_A_CSC_COEFF23 (VLV_DISPLAY_BASE + 0x67904) diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index ce446716d092..ed64fa9defdf 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -829,8 +829,6 @@ static void __i915_request_ctor(void *arg) i915_sw_fence_init(&rq->submit, submit_notify); i915_sw_fence_init(&rq->semaphore, semaphore_notify); - dma_fence_init(&rq->fence, &i915_fence_ops, &rq->lock, 0, 0); - rq->capture_list = NULL; init_llist_head(&rq->execute_cb); @@ -905,17 +903,12 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp) rq->ring = ce->ring; rq->execution_mask = ce->engine->mask; - kref_init(&rq->fence.refcount); - rq->fence.flags = 0; - rq->fence.error = 0; - INIT_LIST_HEAD(&rq->fence.cb_list); - ret = intel_timeline_get_seqno(tl, rq, &seqno); if (ret) goto err_free; - rq->fence.context = tl->fence_context; - rq->fence.seqno = seqno; + dma_fence_init(&rq->fence, &i915_fence_ops, &rq->lock, + tl->fence_context, seqno); RCU_INIT_POINTER(rq->timeline, tl); rq->hwsp_seqno = tl->hwsp_seqno; @@ -1152,6 +1145,12 @@ __emit_semaphore_wait(struct i915_request *to, return 0; } +static bool +can_use_semaphore_wait(struct i915_request *to, struct i915_request *from) +{ + return to->engine->gt->ggtt == from->engine->gt->ggtt; +} + static int emit_semaphore_wait(struct i915_request *to, struct i915_request *from, @@ -1160,6 +1159,9 @@ emit_semaphore_wait(struct i915_request *to, const intel_engine_mask_t mask = READ_ONCE(from->engine)->mask; struct i915_sw_fence *wait = &to->submit; + if (!can_use_semaphore_wait(to, from)) + goto await_fence; + if (!intel_context_use_semaphores(to->context)) goto await_fence; @@ -1263,7 +1265,8 @@ __i915_request_await_execution(struct i915_request *to, * immediate execution, and so we must wait until it reaches the * active slot. */ - if (intel_engine_has_semaphores(to->engine) && + if (can_use_semaphore_wait(to, from) && + intel_engine_has_semaphores(to->engine) && !i915_request_has_initial_breadcrumb(to)) { err = __emit_semaphore_wait(to, from, from->fence.seqno - 1); if (err < 0) @@ -1859,7 +1862,7 @@ long i915_request_wait(struct i915_request *rq, * completion. That requires having a good predictor for the request * duration, which we currently lack. */ - if (IS_ACTIVE(CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT) && + if (CONFIG_DRM_I915_MAX_REQUEST_BUSYWAIT && __i915_spin_request(rq, state)) goto out; diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h index 1bc1349ba3c2..7bd9ed20623e 100644 --- a/drivers/gpu/drm/i915/i915_request.h +++ b/drivers/gpu/drm/i915/i915_request.h @@ -218,6 +218,11 @@ struct i915_request { }; struct llist_head execute_cb; struct i915_sw_fence semaphore; + /** + * @submit_work: complete submit fence from an IRQ if needed for + * locking hierarchy reasons. + */ + struct irq_work submit_work; /* * A list of everyone we wait upon, and everyone who waits upon us. @@ -285,18 +290,23 @@ struct i915_request { struct hrtimer timer; } watchdog; - /* - * Requests may need to be stalled when using GuC submission waiting for - * certain GuC operations to complete. If that is the case, stalled - * requests are added to a per context list of stalled requests. The - * below list_head is the link in that list. + /** + * @guc_fence_link: Requests may need to be stalled when using GuC + * submission waiting for certain GuC operations to complete. If that is + * the case, stalled requests are added to a per context list of stalled + * requests. The below list_head is the link in that list. Protected by + * ce->guc_state.lock. */ struct list_head guc_fence_link; /** - * Priority level while the request is inflight. Differs from i915 - * scheduler priority. See comment above - * I915_SCHEDULER_CAP_STATIC_PRIORITY_MAP for details. + * @guc_prio: Priority level while the request is in flight. Differs + * from i915 scheduler priority. See comment above + * I915_SCHEDULER_CAP_STATIC_PRIORITY_MAP for details. Protected by + * ce->guc_active.lock. Two special values (GUC_PRIO_INIT and + * GUC_PRIO_FINI) outside the GuC priority range are used to indicate + * if the priority has not been initialized yet or if no more updates + * are possible because the request has completed. */ #define GUC_PRIO_INIT 0xff #define GUC_PRIO_FINI 0xfe diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h index 806ad688274b..9795f456cccf 100644 --- a/drivers/gpu/drm/i915/i915_trace.h +++ b/drivers/gpu/drm/i915/i915_trace.h @@ -805,7 +805,7 @@ DECLARE_EVENT_CLASS(i915_request, __entry->dev = rq->engine->i915->drm.primary->index; __entry->class = rq->engine->uabi_class; __entry->instance = rq->engine->uabi_instance; - __entry->guc_id = rq->context->guc_id; + __entry->guc_id = rq->context->guc_id.id; __entry->ctx = rq->fence.context; __entry->seqno = rq->fence.seqno; __entry->tail = rq->tail; @@ -903,23 +903,19 @@ DECLARE_EVENT_CLASS(intel_context, __field(u32, guc_id) __field(int, pin_count) __field(u32, sched_state) - __field(u32, guc_sched_state_no_lock) __field(u8, guc_prio) ), TP_fast_assign( - __entry->guc_id = ce->guc_id; + __entry->guc_id = ce->guc_id.id; __entry->pin_count = atomic_read(&ce->pin_count); __entry->sched_state = ce->guc_state.sched_state; - __entry->guc_sched_state_no_lock = - atomic_read(&ce->guc_sched_state_no_lock); - __entry->guc_prio = ce->guc_prio; + __entry->guc_prio = ce->guc_state.prio; ), - TP_printk("guc_id=%d, pin_count=%d sched_state=0x%x,0x%x, guc_prio=%u", + TP_printk("guc_id=%d, pin_count=%d sched_state=0x%x, guc_prio=%u", __entry->guc_id, __entry->pin_count, __entry->sched_state, - __entry->guc_sched_state_no_lock, __entry->guc_prio) ); @@ -1246,7 +1242,7 @@ DECLARE_EVENT_CLASS(i915_context, TP_fast_assign( __entry->dev = ctx->i915->drm.primary->index; __entry->ctx = ctx; - __entry->vm = rcu_access_pointer(ctx->vm); + __entry->vm = ctx->vm; ), TP_printk("dev=%u, ctx=%p, ctx_vm=%p", diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c index 6877362f6b85..d59fbb019032 100644 --- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c @@ -126,12 +126,30 @@ static void i915_ttm_buddy_man_free(struct ttm_resource_manager *man, kfree(bman_res); } +static void i915_ttm_buddy_man_debug(struct ttm_resource_manager *man, + struct drm_printer *printer) +{ + struct i915_ttm_buddy_manager *bman = to_buddy_manager(man); + struct i915_buddy_block *block; + + mutex_lock(&bman->lock); + drm_printf(printer, "default_page_size: %lluKiB\n", + bman->default_page_size >> 10); + + i915_buddy_print(&bman->mm, printer); + + drm_printf(printer, "reserved:\n"); + list_for_each_entry(block, &bman->reserved, link) + i915_buddy_block_print(&bman->mm, block, printer); + mutex_unlock(&bman->lock); +} + static const struct ttm_resource_manager_func i915_ttm_buddy_manager_func = { .alloc = i915_ttm_buddy_man_alloc, .free = i915_ttm_buddy_man_free, + .debug = i915_ttm_buddy_man_debug, }; - /** * i915_ttm_buddy_man_init - Setup buddy allocator based ttm manager * @bdev: The ttm device diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index 5259edacde38..62f189e064a9 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -458,17 +458,4 @@ static inline bool timer_expired(const struct timer_list *t) return timer_active(t) && !timer_pending(t); } -/* - * This is a lookalike for IS_ENABLED() that takes a kconfig value, - * e.g. CONFIG_DRM_I915_SPIN_REQUEST, and evaluates whether it is non-zero - * i.e. whether the configuration is active. Wrapping up the config inside - * a boolean context prevents clang and smatch from complaining about potential - * issues in confusing logical-&& with bitwise-& for constants. - * - * Sadly IS_ENABLED() itself does not work with kconfig values. - * - * Returns 0 if @config is 0, 1 if set to any value. - */ -#define IS_ACTIVE(config) ((config) != 0) - #endif /* !__I915_UTILS_H */ diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h index d328bb95c49b..8e6f48d1eb7b 100644 --- a/drivers/gpu/drm/i915/intel_device_info.h +++ b/drivers/gpu/drm/i915/intel_device_info.h @@ -133,6 +133,7 @@ enum intel_ppgtt_type { func(has_logical_ring_elsq); \ func(has_mslices); \ func(has_pooled_eu); \ + func(has_pxp); \ func(has_rc6); \ func(has_rc6p); \ func(has_rps); \ diff --git a/drivers/gpu/drm/i915/intel_memory_region.c b/drivers/gpu/drm/i915/intel_memory_region.c index 779eb2fa90b6..e7f7e6627750 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.c +++ b/drivers/gpu/drm/i915/intel_memory_region.c @@ -78,6 +78,18 @@ int intel_memory_region_reserve(struct intel_memory_region *mem, return i915_ttm_buddy_man_reserve(man, offset, size); } +void intel_memory_region_debug(struct intel_memory_region *mr, + struct drm_printer *printer) +{ + drm_printf(printer, "%s: ", mr->name); + + if (mr->region_private) + ttm_resource_manager_debug(mr->region_private, printer); + else + drm_printf(printer, "total:%pa, available:%pa bytes\n", + &mr->total, &mr->avail); +} + struct intel_memory_region * intel_memory_region_create(struct drm_i915_private *i915, resource_size_t start, diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h index 1f2b96efa69d..3feae3353d33 100644 --- a/drivers/gpu/drm/i915/intel_memory_region.h +++ b/drivers/gpu/drm/i915/intel_memory_region.h @@ -15,6 +15,7 @@ struct drm_i915_private; struct drm_i915_gem_object; +struct drm_printer; struct intel_memory_region; struct sg_table; struct ttm_resource; @@ -127,6 +128,9 @@ int intel_memory_region_reserve(struct intel_memory_region *mem, resource_size_t offset, resource_size_t size); +void intel_memory_region_debug(struct intel_memory_region *mr, + struct drm_printer *printer); + struct intel_memory_region * i915_gem_ttm_system_setup(struct drm_i915_private *i915, u16 type, u16 instance); diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index f1b816ebcdf6..e072054adac5 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -70,7 +70,7 @@ static void mmio_debug_resume(struct intel_uncore_mmio_debug *mmio_debug) static const char * const forcewake_domain_names[] = { "render", - "blitter", + "gt", "media", "vdbox0", "vdbox1", @@ -857,16 +857,9 @@ void assert_forcewakes_active(struct intel_uncore *uncore, } /* We give fast paths for the really cool registers */ -#define NEEDS_FORCE_WAKE(reg) ((reg) < 0x40000) - -#define __gen6_reg_read_fw_domains(uncore, offset) \ -({ \ - enum forcewake_domains __fwd; \ - if (NEEDS_FORCE_WAKE(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else \ - __fwd = 0; \ - __fwd; \ +#define NEEDS_FORCE_WAKE(reg) ({ \ + u32 __reg = (reg); \ + __reg < 0x40000 || __reg >= GEN11_BSD_RING_BASE; \ }) static int fw_range_cmp(u32 offset, const struct intel_forcewake_range *entry) @@ -948,125 +941,146 @@ static const struct intel_forcewake_range __vlv_fw_ranges[] = { __fwd; \ }) -#define __gen11_fwtable_reg_read_fw_domains(uncore, offset) \ - find_fw_domain(uncore, offset) - -#define __gen12_fwtable_reg_read_fw_domains(uncore, offset) \ - find_fw_domain(uncore, offset) - /* *Must* be sorted by offset! See intel_shadow_table_check(). */ -static const i915_reg_t gen8_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(GEN6_BSD_RING_BASE), /* 0x12000 (base) */ - RING_TAIL(VEBOX_RING_BASE), /* 0x1a000 (base) */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ +static const struct i915_range gen8_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x12030, .end = 0x12030 }, + { .start = 0x1a030, .end = 0x1a030 }, + { .start = 0x22030, .end = 0x22030 }, /* TODO: Other registers are not yet used */ }; -static const i915_reg_t gen11_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ - /* TODO: Other registers are not yet used */ +static const struct i915_range gen11_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0x2550, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22230, .end = 0x22230 }, + { .start = 0x22510, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0230, .end = 0x1C0230 }, + { .start = 0x1C0510, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4230, .end = 0x1C4230 }, + { .start = 0x1C4510, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8230, .end = 0x1C8230 }, + { .start = 0x1C8510, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0230, .end = 0x1D0230 }, + { .start = 0x1D0510, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4230, .end = 0x1D4230 }, + { .start = 0x1D4510, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8230, .end = 0x1D8230 }, + { .start = 0x1D8510, .end = 0x1D8550 }, }; -static const i915_reg_t gen12_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ - /* TODO: Other registers are not yet used */ +static const struct i915_range gen12_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0x2510, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0xA188, .end = 0xA188 }, + { .start = 0xA278, .end = 0xA278 }, + { .start = 0xA540, .end = 0xA56C }, + { .start = 0xC4C8, .end = 0xC4C8 }, + { .start = 0xC4D4, .end = 0xC4D4 }, + { .start = 0xC600, .end = 0xC600 }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22510, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0510, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4510, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8510, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0510, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4510, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8510, .end = 0x1D8550 }, + + /* + * The rest of these ranges are specific to Xe_HP and beyond, but + * are reserved/unused ranges on earlier gen12 platforms, so they can + * be safely added to the gen12 table. + */ + { .start = 0x1E0030, .end = 0x1E0030 }, + { .start = 0x1E0510, .end = 0x1E0550 }, + { .start = 0x1E4030, .end = 0x1E4030 }, + { .start = 0x1E4510, .end = 0x1E4550 }, + { .start = 0x1E8030, .end = 0x1E8030 }, + { .start = 0x1E8510, .end = 0x1E8550 }, + { .start = 0x1F0030, .end = 0x1F0030 }, + { .start = 0x1F0510, .end = 0x1F0550 }, + { .start = 0x1F4030, .end = 0x1F4030 }, + { .start = 0x1F4510, .end = 0x1F4550 }, + { .start = 0x1F8030, .end = 0x1F8030 }, + { .start = 0x1F8510, .end = 0x1F8550 }, }; -static const i915_reg_t xehp_shadowed_regs[] = { - RING_TAIL(RENDER_RING_BASE), /* 0x2000 (base) */ - RING_EXECLIST_CONTROL(RENDER_RING_BASE), /* 0x2550 */ - GEN6_RPNSWREQ, /* 0xA008 */ - GEN6_RC_VIDEO_FREQ, /* 0xA00C */ - RING_TAIL(BLT_RING_BASE), /* 0x22000 (base) */ - RING_EXECLIST_CONTROL(BLT_RING_BASE), /* 0x22550 */ - RING_TAIL(GEN11_BSD_RING_BASE), /* 0x1C0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD_RING_BASE), /* 0x1C0550 */ - RING_TAIL(GEN11_BSD2_RING_BASE), /* 0x1C4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD2_RING_BASE), /* 0x1C4550 */ - RING_TAIL(GEN11_VEBOX_RING_BASE), /* 0x1C8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX_RING_BASE), /* 0x1C8550 */ - RING_TAIL(GEN11_BSD3_RING_BASE), /* 0x1D0000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD3_RING_BASE), /* 0x1D0550 */ - RING_TAIL(GEN11_BSD4_RING_BASE), /* 0x1D4000 (base) */ - RING_EXECLIST_CONTROL(GEN11_BSD4_RING_BASE), /* 0x1D4550 */ - RING_TAIL(GEN11_VEBOX2_RING_BASE), /* 0x1D8000 (base) */ - RING_EXECLIST_CONTROL(GEN11_VEBOX2_RING_BASE), /* 0x1D8550 */ - RING_TAIL(XEHP_BSD5_RING_BASE), /* 0x1E0000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD5_RING_BASE), /* 0x1E0550 */ - RING_TAIL(XEHP_BSD6_RING_BASE), /* 0x1E4000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD6_RING_BASE), /* 0x1E4550 */ - RING_TAIL(XEHP_VEBOX3_RING_BASE), /* 0x1E8000 (base) */ - RING_EXECLIST_CONTROL(XEHP_VEBOX3_RING_BASE), /* 0x1E8550 */ - RING_TAIL(XEHP_BSD7_RING_BASE), /* 0x1F0000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD7_RING_BASE), /* 0x1F0550 */ - RING_TAIL(XEHP_BSD8_RING_BASE), /* 0x1F4000 (base) */ - RING_EXECLIST_CONTROL(XEHP_BSD8_RING_BASE), /* 0x1F4550 */ - RING_TAIL(XEHP_VEBOX4_RING_BASE), /* 0x1F8000 (base) */ - RING_EXECLIST_CONTROL(XEHP_VEBOX4_RING_BASE), /* 0x1F8550 */ - /* TODO: Other registers are not yet used */ +static const struct i915_range dg2_shadowed_regs[] = { + { .start = 0x2030, .end = 0x2030 }, + { .start = 0x2510, .end = 0x2550 }, + { .start = 0xA008, .end = 0xA00C }, + { .start = 0xA188, .end = 0xA188 }, + { .start = 0xA278, .end = 0xA278 }, + { .start = 0xA540, .end = 0xA56C }, + { .start = 0xC4C8, .end = 0xC4C8 }, + { .start = 0xC4E0, .end = 0xC4E0 }, + { .start = 0xC600, .end = 0xC600 }, + { .start = 0xC658, .end = 0xC658 }, + { .start = 0x22030, .end = 0x22030 }, + { .start = 0x22510, .end = 0x22550 }, + { .start = 0x1C0030, .end = 0x1C0030 }, + { .start = 0x1C0510, .end = 0x1C0550 }, + { .start = 0x1C4030, .end = 0x1C4030 }, + { .start = 0x1C4510, .end = 0x1C4550 }, + { .start = 0x1C8030, .end = 0x1C8030 }, + { .start = 0x1C8510, .end = 0x1C8550 }, + { .start = 0x1D0030, .end = 0x1D0030 }, + { .start = 0x1D0510, .end = 0x1D0550 }, + { .start = 0x1D4030, .end = 0x1D4030 }, + { .start = 0x1D4510, .end = 0x1D4550 }, + { .start = 0x1D8030, .end = 0x1D8030 }, + { .start = 0x1D8510, .end = 0x1D8550 }, + { .start = 0x1E0030, .end = 0x1E0030 }, + { .start = 0x1E0510, .end = 0x1E0550 }, + { .start = 0x1E4030, .end = 0x1E4030 }, + { .start = 0x1E4510, .end = 0x1E4550 }, + { .start = 0x1E8030, .end = 0x1E8030 }, + { .start = 0x1E8510, .end = 0x1E8550 }, + { .start = 0x1F0030, .end = 0x1F0030 }, + { .start = 0x1F0510, .end = 0x1F0550 }, + { .start = 0x1F4030, .end = 0x1F4030 }, + { .start = 0x1F4510, .end = 0x1F4550 }, + { .start = 0x1F8030, .end = 0x1F8030 }, + { .start = 0x1F8510, .end = 0x1F8550 }, }; -static int mmio_reg_cmp(u32 key, const i915_reg_t *reg) +static int mmio_range_cmp(u32 key, const struct i915_range *range) { - u32 offset = i915_mmio_reg_offset(*reg); - - if (key < offset) + if (key < range->start) return -1; - else if (key > offset) + else if (key > range->end) return 1; else return 0; } -#define __is_X_shadowed(x) \ -static bool is_##x##_shadowed(u32 offset) \ -{ \ - const i915_reg_t *regs = x##_shadowed_regs; \ - return BSEARCH(offset, regs, ARRAY_SIZE(x##_shadowed_regs), \ - mmio_reg_cmp); \ -} +static bool is_shadowed(struct intel_uncore *uncore, u32 offset) +{ + if (drm_WARN_ON(&uncore->i915->drm, !uncore->shadowed_reg_table)) + return false; -__is_X_shadowed(gen8) -__is_X_shadowed(gen11) -__is_X_shadowed(gen12) -__is_X_shadowed(xehp) + return BSEARCH(offset, + uncore->shadowed_reg_table, + uncore->shadowed_reg_table_entries, + mmio_range_cmp); +} static enum forcewake_domains gen6_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) @@ -1074,15 +1088,9 @@ gen6_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) return FORCEWAKE_RENDER; } -#define __gen8_reg_write_fw_domains(uncore, offset) \ -({ \ - enum forcewake_domains __fwd; \ - if (NEEDS_FORCE_WAKE(offset) && !is_gen8_shadowed(offset)) \ - __fwd = FORCEWAKE_RENDER; \ - else \ - __fwd = 0; \ - __fwd; \ -}) +static const struct intel_forcewake_range __gen6_fw_ranges[] = { + GEN_FW_RANGE(0x0, 0x3ffff, FORCEWAKE_RENDER), +}; /* *Must* be sorted by offset ranges! See intel_fw_table_check(). */ static const struct intel_forcewake_range __chv_fw_ranges[] = { @@ -1107,34 +1115,8 @@ static const struct intel_forcewake_range __chv_fw_ranges[] = { #define __fwtable_reg_write_fw_domains(uncore, offset) \ ({ \ enum forcewake_domains __fwd = 0; \ - if (NEEDS_FORCE_WAKE((offset)) && !is_gen8_shadowed(offset)) \ - __fwd = find_fw_domain(uncore, offset); \ - __fwd; \ -}) - -#define __gen11_fwtable_reg_write_fw_domains(uncore, offset) \ -({ \ - enum forcewake_domains __fwd = 0; \ const u32 __offset = (offset); \ - if (!is_gen11_shadowed(__offset)) \ - __fwd = find_fw_domain(uncore, __offset); \ - __fwd; \ -}) - -#define __gen12_fwtable_reg_write_fw_domains(uncore, offset) \ -({ \ - enum forcewake_domains __fwd = 0; \ - const u32 __offset = (offset); \ - if (!is_gen12_shadowed(__offset)) \ - __fwd = find_fw_domain(uncore, __offset); \ - __fwd; \ -}) - -#define __xehp_fwtable_reg_write_fw_domains(uncore, offset) \ -({ \ - enum forcewake_domains __fwd = 0; \ - const u32 __offset = (offset); \ - if (!is_xehp_shadowed(__offset)) \ + if (NEEDS_FORCE_WAKE((__offset)) && !is_shadowed(uncore, __offset)) \ __fwd = find_fw_domain(uncore, __offset); \ __fwd; \ }) @@ -1627,35 +1609,30 @@ static inline void __force_wake_auto(struct intel_uncore *uncore, ___force_wake_auto(uncore, fw_domains); } -#define __gen_read(func, x) \ +#define __gen_fwtable_read(x) \ static u##x \ -func##_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) { \ +fwtable_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) \ +{ \ enum forcewake_domains fw_engine; \ GEN6_READ_HEADER(x); \ - fw_engine = __##func##_reg_read_fw_domains(uncore, offset); \ + fw_engine = __fwtable_reg_read_fw_domains(uncore, offset); \ if (fw_engine) \ __force_wake_auto(uncore, fw_engine); \ val = __raw_uncore_read##x(uncore, reg); \ GEN6_READ_FOOTER; \ } -#define __gen_reg_read_funcs(func) \ -static enum forcewake_domains \ -func##_reg_read_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) { \ - return __##func##_reg_read_fw_domains(uncore, i915_mmio_reg_offset(reg)); \ -} \ -\ -__gen_read(func, 8) \ -__gen_read(func, 16) \ -__gen_read(func, 32) \ -__gen_read(func, 64) +static enum forcewake_domains +fwtable_reg_read_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) { + return __fwtable_reg_read_fw_domains(uncore, i915_mmio_reg_offset(reg)); +} -__gen_reg_read_funcs(gen12_fwtable); -__gen_reg_read_funcs(gen11_fwtable); -__gen_reg_read_funcs(fwtable); -__gen_reg_read_funcs(gen6); +__gen_fwtable_read(8) +__gen_fwtable_read(16) +__gen_fwtable_read(32) +__gen_fwtable_read(64) -#undef __gen_reg_read_funcs +#undef __gen_fwtable_read #undef GEN6_READ_FOOTER #undef GEN6_READ_HEADER @@ -1720,35 +1697,29 @@ __gen6_write(8) __gen6_write(16) __gen6_write(32) -#define __gen_write(func, x) \ +#define __gen_fwtable_write(x) \ static void \ -func##_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \ +fwtable_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \ enum forcewake_domains fw_engine; \ GEN6_WRITE_HEADER; \ - fw_engine = __##func##_reg_write_fw_domains(uncore, offset); \ + fw_engine = __fwtable_reg_write_fw_domains(uncore, offset); \ if (fw_engine) \ __force_wake_auto(uncore, fw_engine); \ __raw_uncore_write##x(uncore, reg, val); \ GEN6_WRITE_FOOTER; \ } -#define __gen_reg_write_funcs(func) \ -static enum forcewake_domains \ -func##_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) { \ - return __##func##_reg_write_fw_domains(uncore, i915_mmio_reg_offset(reg)); \ -} \ -\ -__gen_write(func, 8) \ -__gen_write(func, 16) \ -__gen_write(func, 32) +static enum forcewake_domains +fwtable_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) +{ + return __fwtable_reg_write_fw_domains(uncore, i915_mmio_reg_offset(reg)); +} -__gen_reg_write_funcs(xehp_fwtable); -__gen_reg_write_funcs(gen12_fwtable); -__gen_reg_write_funcs(gen11_fwtable); -__gen_reg_write_funcs(fwtable); -__gen_reg_write_funcs(gen8); +__gen_fwtable_write(8) +__gen_fwtable_write(16) +__gen_fwtable_write(32) -#undef __gen_reg_write_funcs +#undef __gen_fwtable_write #undef GEN6_WRITE_FOOTER #undef GEN6_WRITE_HEADER @@ -2010,6 +1981,12 @@ out: (uncore)->fw_domains_table_entries = ARRAY_SIZE((d)); \ } +#define ASSIGN_SHADOW_TABLE(uncore, d) \ +{ \ + (uncore)->shadowed_reg_table = d; \ + (uncore)->shadowed_reg_table_entries = ARRAY_SIZE((d)); \ +} + static int i915_pmic_bus_access_notifier(struct notifier_block *nb, unsigned long action, void *data) { @@ -2120,40 +2097,42 @@ static int uncore_forcewake_init(struct intel_uncore *uncore) return ret; forcewake_early_sanitize(uncore, 0); + ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable); + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) { ASSIGN_FW_DOMAINS_TABLE(uncore, __dg2_fw_ranges); - ASSIGN_WRITE_MMIO_VFUNCS(uncore, xehp_fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable); + ASSIGN_SHADOW_TABLE(uncore, dg2_shadowed_regs); + ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); } else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) { ASSIGN_FW_DOMAINS_TABLE(uncore, __xehp_fw_ranges); - ASSIGN_WRITE_MMIO_VFUNCS(uncore, xehp_fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable); + ASSIGN_SHADOW_TABLE(uncore, gen12_shadowed_regs); + ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); } else if (GRAPHICS_VER(i915) >= 12) { ASSIGN_FW_DOMAINS_TABLE(uncore, __gen12_fw_ranges); - ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen12_fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen12_fwtable); + ASSIGN_SHADOW_TABLE(uncore, gen12_shadowed_regs); + ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); } else if (GRAPHICS_VER(i915) == 11) { ASSIGN_FW_DOMAINS_TABLE(uncore, __gen11_fw_ranges); - ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen11_fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen11_fwtable); + ASSIGN_SHADOW_TABLE(uncore, gen11_shadowed_regs); + ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); } else if (IS_GRAPHICS_VER(i915, 9, 10)) { ASSIGN_FW_DOMAINS_TABLE(uncore, __gen9_fw_ranges); + ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs); ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable); } else if (IS_CHERRYVIEW(i915)) { ASSIGN_FW_DOMAINS_TABLE(uncore, __chv_fw_ranges); + ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs); ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); - ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable); } else if (GRAPHICS_VER(i915) == 8) { - ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen8); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen6); + ASSIGN_FW_DOMAINS_TABLE(uncore, __gen6_fw_ranges); + ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs); + ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable); } else if (IS_VALLEYVIEW(i915)) { ASSIGN_FW_DOMAINS_TABLE(uncore, __vlv_fw_ranges); ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6); - ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable); } else if (IS_GRAPHICS_VER(i915, 6, 7)) { + ASSIGN_FW_DOMAINS_TABLE(uncore, __gen6_fw_ranges); ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6); - ASSIGN_READ_MMIO_VFUNCS(uncore, gen6); } uncore->pmic_bus_access_nb.notifier_call = i915_pmic_bus_access_notifier; diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h index 1a7448f5f16f..3248e4e2c540 100644 --- a/drivers/gpu/drm/i915/intel_uncore.h +++ b/drivers/gpu/drm/i915/intel_uncore.h @@ -119,6 +119,12 @@ struct intel_forcewake_range { enum forcewake_domains domains; }; +/* Other register ranges (e.g., shadow tables, MCR tables, etc.) */ +struct i915_range { + u32 start; + u32 end; +}; + struct intel_uncore { void __iomem *regs; @@ -136,6 +142,13 @@ struct intel_uncore { const struct intel_forcewake_range *fw_domains_table; unsigned int fw_domains_table_entries; + /* + * Shadowed registers are special cases where we can safely write + * to the register *without* grabbing forcewake. + */ + const struct i915_range *shadowed_reg_table; + unsigned int shadowed_reg_table_entries; + struct notifier_block pmic_bus_access_nb; const struct intel_uncore_fw_get *fw_get_funcs; struct intel_uncore_funcs funcs; diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c new file mode 100644 index 000000000000..e2314ad9546d --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c @@ -0,0 +1,299 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ +#include <linux/workqueue.h> +#include "intel_pxp.h" +#include "intel_pxp_irq.h" +#include "intel_pxp_session.h" +#include "intel_pxp_tee.h" +#include "gem/i915_gem_context.h" +#include "gt/intel_context.h" +#include "i915_drv.h" + +/** + * DOC: PXP + * + * PXP (Protected Xe Path) is a feature available in Gen12 and newer platforms. + * It allows execution and flip to display of protected (i.e. encrypted) + * objects. The SW support is enabled via the CONFIG_DRM_I915_PXP kconfig. + * + * Objects can opt-in to PXP encryption at creation time via the + * I915_GEM_CREATE_EXT_PROTECTED_CONTENT create_ext flag. For objects to be + * correctly protected they must be used in conjunction with a context created + * with the I915_CONTEXT_PARAM_PROTECTED_CONTENT flag. See the documentation + * of those two uapi flags for details and restrictions. + * + * Protected objects are tied to a pxp session; currently we only support one + * session, which i915 manages and whose index is available in the uapi + * (I915_PROTECTED_CONTENT_DEFAULT_SESSION) for use in instructions targeting + * protected objects. + * The session is invalidated by the HW when certain events occur (e.g. + * suspend/resume). When this happens, all the objects that were used with the + * session are marked as invalid and all contexts marked as using protected + * content are banned. Any further attempt at using them in an execbuf call is + * rejected, while flips are converted to black frames. + * + * Some of the PXP setup operations are performed by the Management Engine, + * which is handled by the mei driver; communication between i915 and mei is + * performed via the mei_pxp component module. + */ + +struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp) +{ + return container_of(pxp, struct intel_gt, pxp); +} + +bool intel_pxp_is_active(const struct intel_pxp *pxp) +{ + return pxp->arb_is_valid; +} + +/* KCR register definitions */ +#define KCR_INIT _MMIO(0x320f0) +/* Setting KCR Init bit is required after system boot */ +#define KCR_INIT_ALLOW_DISPLAY_ME_WRITES REG_BIT(14) + +static void kcr_pxp_enable(struct intel_gt *gt) +{ + intel_uncore_write(gt->uncore, KCR_INIT, + _MASKED_BIT_ENABLE(KCR_INIT_ALLOW_DISPLAY_ME_WRITES)); +} + +static void kcr_pxp_disable(struct intel_gt *gt) +{ + intel_uncore_write(gt->uncore, KCR_INIT, + _MASKED_BIT_DISABLE(KCR_INIT_ALLOW_DISPLAY_ME_WRITES)); +} + +static int create_vcs_context(struct intel_pxp *pxp) +{ + static struct lock_class_key pxp_lock; + struct intel_gt *gt = pxp_to_gt(pxp); + struct intel_engine_cs *engine; + struct intel_context *ce; + int i; + + /* + * Find the first VCS engine present. We're guaranteed there is one + * if we're in this function due to the check in has_pxp + */ + for (i = 0, engine = NULL; !engine; i++) + engine = gt->engine_class[VIDEO_DECODE_CLASS][i]; + + GEM_BUG_ON(!engine || engine->class != VIDEO_DECODE_CLASS); + + ce = intel_engine_create_pinned_context(engine, engine->gt->vm, SZ_4K, + I915_GEM_HWS_PXP_ADDR, + &pxp_lock, "pxp_context"); + if (IS_ERR(ce)) { + drm_err(>->i915->drm, "failed to create VCS ctx for PXP\n"); + return PTR_ERR(ce); + } + + pxp->ce = ce; + + return 0; +} + +static void destroy_vcs_context(struct intel_pxp *pxp) +{ + intel_engine_destroy_pinned_context(fetch_and_zero(&pxp->ce)); +} + +void intel_pxp_init(struct intel_pxp *pxp) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + int ret; + + if (!HAS_PXP(gt->i915)) + return; + + mutex_init(&pxp->tee_mutex); + + /* + * we'll use the completion to check if there is a termination pending, + * so we start it as completed and we reinit it when a termination + * is triggered. + */ + init_completion(&pxp->termination); + complete_all(&pxp->termination); + + mutex_init(&pxp->arb_mutex); + INIT_WORK(&pxp->session_work, intel_pxp_session_work); + + ret = create_vcs_context(pxp); + if (ret) + return; + + ret = intel_pxp_tee_component_init(pxp); + if (ret) + goto out_context; + + drm_info(>->i915->drm, "Protected Xe Path (PXP) protected content support initialized\n"); + + return; + +out_context: + destroy_vcs_context(pxp); +} + +void intel_pxp_fini(struct intel_pxp *pxp) +{ + if (!intel_pxp_is_enabled(pxp)) + return; + + pxp->arb_is_valid = false; + + intel_pxp_tee_component_fini(pxp); + + destroy_vcs_context(pxp); +} + +void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp) +{ + pxp->arb_is_valid = false; + reinit_completion(&pxp->termination); +} + +static void pxp_queue_termination(struct intel_pxp *pxp) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + + /* + * We want to get the same effect as if we received a termination + * interrupt, so just pretend that we did. + */ + spin_lock_irq(>->irq_lock); + intel_pxp_mark_termination_in_progress(pxp); + pxp->session_events |= PXP_TERMINATION_REQUEST; + queue_work(system_unbound_wq, &pxp->session_work); + spin_unlock_irq(>->irq_lock); +} + +/* + * the arb session is restarted from the irq work when we receive the + * termination completion interrupt + */ +int intel_pxp_start(struct intel_pxp *pxp) +{ + int ret = 0; + + if (!intel_pxp_is_enabled(pxp)) + return -ENODEV; + + mutex_lock(&pxp->arb_mutex); + + if (pxp->arb_is_valid) + goto unlock; + + pxp_queue_termination(pxp); + + if (!wait_for_completion_timeout(&pxp->termination, + msecs_to_jiffies(250))) { + ret = -ETIMEDOUT; + goto unlock; + } + + /* make sure the compiler doesn't optimize the double access */ + barrier(); + + if (!pxp->arb_is_valid) + ret = -EIO; + +unlock: + mutex_unlock(&pxp->arb_mutex); + return ret; +} + +void intel_pxp_init_hw(struct intel_pxp *pxp) +{ + kcr_pxp_enable(pxp_to_gt(pxp)); + intel_pxp_irq_enable(pxp); +} + +void intel_pxp_fini_hw(struct intel_pxp *pxp) +{ + kcr_pxp_disable(pxp_to_gt(pxp)); + + intel_pxp_irq_disable(pxp); +} + +int intel_pxp_key_check(struct intel_pxp *pxp, + struct drm_i915_gem_object *obj, + bool assign) +{ + if (!intel_pxp_is_active(pxp)) + return -ENODEV; + + if (!i915_gem_object_is_protected(obj)) + return -EINVAL; + + GEM_BUG_ON(!pxp->key_instance); + + /* + * If this is the first time we're using this object, it's not + * encrypted yet; it will be encrypted with the current key, so mark it + * as such. If the object is already encrypted, check instead if the + * used key is still valid. + */ + if (!obj->pxp_key_instance && assign) + obj->pxp_key_instance = pxp->key_instance; + + if (obj->pxp_key_instance != pxp->key_instance) + return -ENOEXEC; + + return 0; +} + +void intel_pxp_invalidate(struct intel_pxp *pxp) +{ + struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915; + struct i915_gem_context *ctx, *cn; + + /* ban all contexts marked as protected */ + spin_lock_irq(&i915->gem.contexts.lock); + list_for_each_entry_safe(ctx, cn, &i915->gem.contexts.list, link) { + struct i915_gem_engines_iter it; + struct intel_context *ce; + + if (!kref_get_unless_zero(&ctx->ref)) + continue; + + if (likely(!i915_gem_context_uses_protected_content(ctx))) { + i915_gem_context_put(ctx); + continue; + } + + spin_unlock_irq(&i915->gem.contexts.lock); + + /* + * By the time we get here we are either going to suspend with + * quiesced execution or the HW keys are already long gone and + * in this case it is worthless to attempt to close the context + * and wait for its execution. It will hang the GPU if it has + * not already. So, as a fast mitigation, we can ban the + * context as quick as we can. That might race with the + * execbuffer, but currently this is the best that can be done. + */ + for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) + intel_context_ban(ce, NULL); + i915_gem_context_unlock_engines(ctx); + + /* + * The context has been banned, no need to keep the wakeref. + * This is safe from races because the only other place this + * is touched is context_release and we're holding a ctx ref + */ + if (ctx->pxp_wakeref) { + intel_runtime_pm_put(&i915->runtime_pm, + ctx->pxp_wakeref); + ctx->pxp_wakeref = 0; + } + + spin_lock_irq(&i915->gem.contexts.lock); + list_safe_reset_next(ctx, cn, link); + i915_gem_context_put(ctx); + } + spin_unlock_irq(&i915->gem.contexts.lock); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h new file mode 100644 index 000000000000..aa262258d4d4 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_H__ +#define __INTEL_PXP_H__ + +#include "intel_pxp_types.h" + +struct drm_i915_gem_object; + +static inline bool intel_pxp_is_enabled(const struct intel_pxp *pxp) +{ + return pxp->ce; +} + +#ifdef CONFIG_DRM_I915_PXP +struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp); +bool intel_pxp_is_active(const struct intel_pxp *pxp); + +void intel_pxp_init(struct intel_pxp *pxp); +void intel_pxp_fini(struct intel_pxp *pxp); + +void intel_pxp_init_hw(struct intel_pxp *pxp); +void intel_pxp_fini_hw(struct intel_pxp *pxp); + +void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp); + +int intel_pxp_start(struct intel_pxp *pxp); + +int intel_pxp_key_check(struct intel_pxp *pxp, + struct drm_i915_gem_object *obj, + bool assign); + +void intel_pxp_invalidate(struct intel_pxp *pxp); +#else +static inline void intel_pxp_init(struct intel_pxp *pxp) +{ +} + +static inline void intel_pxp_fini(struct intel_pxp *pxp) +{ +} + +static inline int intel_pxp_start(struct intel_pxp *pxp) +{ + return -ENODEV; +} + +static inline bool intel_pxp_is_active(const struct intel_pxp *pxp) +{ + return false; +} + +static inline int intel_pxp_key_check(struct intel_pxp *pxp, + struct drm_i915_gem_object *obj, + bool assign) +{ + return -ENODEV; +} +#endif + +#endif /* __INTEL_PXP_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c new file mode 100644 index 000000000000..f41e45763d0d --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.c @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "intel_pxp.h" +#include "intel_pxp_cmd.h" +#include "intel_pxp_session.h" +#include "gt/intel_context.h" +#include "gt/intel_engine_pm.h" +#include "gt/intel_gpu_commands.h" +#include "gt/intel_ring.h" + +#include "i915_trace.h" + +/* stall until prior PXP and MFX/HCP/HUC objects are cmopleted */ +#define MFX_WAIT_PXP (MFX_WAIT | \ + MFX_WAIT_DW0_PXP_SYNC_CONTROL_FLAG | \ + MFX_WAIT_DW0_MFX_SYNC_CONTROL_FLAG) + +static u32 *pxp_emit_session_selection(u32 *cs, u32 idx) +{ + *cs++ = MFX_WAIT_PXP; + + /* pxp off */ + *cs++ = MI_FLUSH_DW; + *cs++ = 0; + *cs++ = 0; + + /* select session */ + *cs++ = MI_SET_APPID | MI_SET_APPID_SESSION_ID(idx); + + *cs++ = MFX_WAIT_PXP; + + /* pxp on */ + *cs++ = MI_FLUSH_DW | MI_FLUSH_DW_PROTECTED_MEM_EN | + MI_FLUSH_DW_OP_STOREDW | MI_FLUSH_DW_STORE_INDEX; + *cs++ = I915_GEM_HWS_PXP_ADDR | MI_FLUSH_DW_USE_GTT; + *cs++ = 0; + + *cs++ = MFX_WAIT_PXP; + + return cs; +} + +static u32 *pxp_emit_inline_termination(u32 *cs) +{ + /* session inline termination */ + *cs++ = CRYPTO_KEY_EXCHANGE; + *cs++ = 0; + + return cs; +} + +static u32 *pxp_emit_session_termination(u32 *cs, u32 idx) +{ + cs = pxp_emit_session_selection(cs, idx); + cs = pxp_emit_inline_termination(cs); + + return cs; +} + +static u32 *pxp_emit_wait(u32 *cs) +{ + /* wait for cmds to go through */ + *cs++ = MFX_WAIT_PXP; + *cs++ = 0; + + return cs; +} + +/* + * if we ever need to terminate more than one session, we can submit multiple + * selections and terminations back-to-back with a single wait at the end + */ +#define SELECTION_LEN 10 +#define TERMINATION_LEN 2 +#define SESSION_TERMINATION_LEN(x) ((SELECTION_LEN + TERMINATION_LEN) * (x)) +#define WAIT_LEN 2 + +static void pxp_request_commit(struct i915_request *rq) +{ + struct i915_sched_attr attr = { .priority = I915_PRIORITY_MAX }; + struct intel_timeline * const tl = i915_request_timeline(rq); + + lockdep_unpin_lock(&tl->mutex, rq->cookie); + + trace_i915_request_add(rq); + __i915_request_commit(rq); + __i915_request_queue(rq, &attr); + + mutex_unlock(&tl->mutex); +} + +int intel_pxp_terminate_session(struct intel_pxp *pxp, u32 id) +{ + struct i915_request *rq; + struct intel_context *ce = pxp->ce; + u32 *cs; + int err = 0; + + if (!intel_pxp_is_enabled(pxp)) + return 0; + + rq = i915_request_create(ce); + if (IS_ERR(rq)) + return PTR_ERR(rq); + + if (ce->engine->emit_init_breadcrumb) { + err = ce->engine->emit_init_breadcrumb(rq); + if (err) + goto out_rq; + } + + cs = intel_ring_begin(rq, SESSION_TERMINATION_LEN(1) + WAIT_LEN); + if (IS_ERR(cs)) { + err = PTR_ERR(cs); + goto out_rq; + } + + cs = pxp_emit_session_termination(cs, id); + cs = pxp_emit_wait(cs); + + intel_ring_advance(rq, cs); + +out_rq: + i915_request_get(rq); + + if (unlikely(err)) + i915_request_set_error_once(rq, err); + + pxp_request_commit(rq); + + if (!err && i915_request_wait(rq, 0, HZ / 5) < 0) + err = -ETIME; + + i915_request_put(rq); + + return err; +} + diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h new file mode 100644 index 000000000000..6d6299543578 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_cmd.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_CMD_H__ +#define __INTEL_PXP_CMD_H__ + +#include <linux/types.h> + +struct intel_pxp; + +int intel_pxp_terminate_session(struct intel_pxp *pxp, u32 idx); + +#endif /* __INTEL_PXP_CMD_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c new file mode 100644 index 000000000000..10e1e45471f1 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2021 Intel Corporation + */ + +#include <linux/debugfs.h> +#include <drm/drm_print.h> + +#include "gt/intel_gt_debugfs.h" +#include "pxp/intel_pxp.h" +#include "pxp/intel_pxp_irq.h" +#include "i915_drv.h" + +static int pxp_info_show(struct seq_file *m, void *data) +{ + struct intel_pxp *pxp = m->private; + struct drm_printer p = drm_seq_file_printer(m); + bool enabled = intel_pxp_is_enabled(pxp); + + if (!enabled) { + drm_printf(&p, "pxp disabled\n"); + return 0; + } + + drm_printf(&p, "active: %s\n", yesno(intel_pxp_is_active(pxp))); + drm_printf(&p, "instance counter: %u\n", pxp->key_instance); + + return 0; +} +DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(pxp_info); + +static int pxp_terminate_get(void *data, u64 *val) +{ + /* nothing to read */ + return -EPERM; +} + +static int pxp_terminate_set(void *data, u64 val) +{ + struct intel_pxp *pxp = data; + struct intel_gt *gt = pxp_to_gt(pxp); + + if (!intel_pxp_is_active(pxp)) + return -ENODEV; + + /* simulate a termination interrupt */ + spin_lock_irq(>->irq_lock); + intel_pxp_irq_handler(pxp, GEN12_DISPLAY_PXP_STATE_TERMINATED_INTERRUPT); + spin_unlock_irq(>->irq_lock); + + if (!wait_for_completion_timeout(&pxp->termination, + msecs_to_jiffies(100))) + return -ETIMEDOUT; + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(pxp_terminate_fops, pxp_terminate_get, pxp_terminate_set, "%llx\n"); +void intel_pxp_debugfs_register(struct intel_pxp *pxp, struct dentry *gt_root) +{ + static const struct intel_gt_debugfs_file files[] = { + { "info", &pxp_info_fops, NULL }, + { "terminate_state", &pxp_terminate_fops, NULL }, + }; + struct dentry *root; + + if (!gt_root) + return; + + if (!HAS_PXP((pxp_to_gt(pxp)->i915))) + return; + + root = debugfs_create_dir("pxp", gt_root); + if (IS_ERR(root)) + return; + + intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), pxp); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.h b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.h new file mode 100644 index 000000000000..7e0c3d2f5d7e --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_debugfs.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ + +#ifndef __INTEL_PXP_DEBUGFS_H__ +#define __INTEL_PXP_DEBUGFS_H__ + +struct intel_pxp; +struct dentry; + +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_debugfs_register(struct intel_pxp *pxp, struct dentry *root); +#else +static inline void +intel_pxp_debugfs_register(struct intel_pxp *pxp, struct dentry *root) +{ +} +#endif + +#endif /* __INTEL_PXP_DEBUGFS_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c new file mode 100644 index 000000000000..8d5553772ded --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ +#include <linux/workqueue.h> +#include "intel_pxp.h" +#include "intel_pxp_irq.h" +#include "intel_pxp_session.h" +#include "gt/intel_gt_irq.h" +#include "gt/intel_gt_types.h" +#include "i915_irq.h" +#include "i915_reg.h" +#include "intel_runtime_pm.h" + +/** + * intel_pxp_irq_handler - Handles PXP interrupts. + * @pxp: pointer to pxp struct + * @iir: interrupt vector + */ +void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + + if (GEM_WARN_ON(!intel_pxp_is_enabled(pxp))) + return; + + lockdep_assert_held(>->irq_lock); + + if (unlikely(!iir)) + return; + + if (iir & (GEN12_DISPLAY_PXP_STATE_TERMINATED_INTERRUPT | + GEN12_DISPLAY_APP_TERMINATED_PER_FW_REQ_INTERRUPT)) { + /* immediately mark PXP as inactive on termination */ + intel_pxp_mark_termination_in_progress(pxp); + pxp->session_events |= PXP_TERMINATION_REQUEST | PXP_INVAL_REQUIRED; + } + + if (iir & GEN12_DISPLAY_STATE_RESET_COMPLETE_INTERRUPT) + pxp->session_events |= PXP_TERMINATION_COMPLETE; + + if (pxp->session_events) + queue_work(system_unbound_wq, &pxp->session_work); +} + +static inline void __pxp_set_interrupts(struct intel_gt *gt, u32 interrupts) +{ + struct intel_uncore *uncore = gt->uncore; + const u32 mask = interrupts << 16; + + intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_ENABLE, mask); + intel_uncore_write(uncore, GEN11_CRYPTO_RSVD_INTR_MASK, ~mask); +} + +static inline void pxp_irq_reset(struct intel_gt *gt) +{ + spin_lock_irq(>->irq_lock); + gen11_gt_reset_one_iir(gt, 0, GEN11_KCR); + spin_unlock_irq(>->irq_lock); +} + +void intel_pxp_irq_enable(struct intel_pxp *pxp) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + + spin_lock_irq(>->irq_lock); + + if (!pxp->irq_enabled) + WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_KCR)); + + __pxp_set_interrupts(gt, GEN12_PXP_INTERRUPTS); + pxp->irq_enabled = true; + + spin_unlock_irq(>->irq_lock); +} + +void intel_pxp_irq_disable(struct intel_pxp *pxp) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + + /* + * We always need to submit a global termination when we re-enable the + * interrupts, so there is no need to make sure that the session state + * makes sense at the end of this function. Just make sure this is not + * called in a path were the driver consider the session as valid and + * doesn't call a termination on restart. + */ + GEM_WARN_ON(intel_pxp_is_active(pxp)); + + spin_lock_irq(>->irq_lock); + + pxp->irq_enabled = false; + __pxp_set_interrupts(gt, 0); + + spin_unlock_irq(>->irq_lock); + intel_synchronize_irq(gt->i915); + + pxp_irq_reset(gt); + + flush_work(&pxp->session_work); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h new file mode 100644 index 000000000000..8b5793654844 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_irq.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_IRQ_H__ +#define __INTEL_PXP_IRQ_H__ + +#include <linux/types.h> + +struct intel_pxp; + +#define GEN12_DISPLAY_PXP_STATE_TERMINATED_INTERRUPT BIT(1) +#define GEN12_DISPLAY_APP_TERMINATED_PER_FW_REQ_INTERRUPT BIT(2) +#define GEN12_DISPLAY_STATE_RESET_COMPLETE_INTERRUPT BIT(3) + +#define GEN12_PXP_INTERRUPTS \ + (GEN12_DISPLAY_PXP_STATE_TERMINATED_INTERRUPT | \ + GEN12_DISPLAY_APP_TERMINATED_PER_FW_REQ_INTERRUPT | \ + GEN12_DISPLAY_STATE_RESET_COMPLETE_INTERRUPT) + +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_irq_enable(struct intel_pxp *pxp); +void intel_pxp_irq_disable(struct intel_pxp *pxp); +void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir); +#else +static inline void intel_pxp_irq_handler(struct intel_pxp *pxp, u16 iir) +{ +} +#endif + +#endif /* __INTEL_PXP_IRQ_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c new file mode 100644 index 000000000000..23fd86de5a24 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include "intel_pxp.h" +#include "intel_pxp_irq.h" +#include "intel_pxp_pm.h" +#include "intel_pxp_session.h" + +void intel_pxp_suspend(struct intel_pxp *pxp, bool runtime) +{ + if (!intel_pxp_is_enabled(pxp)) + return; + + pxp->arb_is_valid = false; + + /* + * Contexts using protected objects keep a runtime PM reference, so we + * can only runtime suspend when all of them have been either closed + * or banned. Therefore, there is no need to invalidate in that + * scenario. + */ + if (!runtime) + intel_pxp_invalidate(pxp); + + intel_pxp_fini_hw(pxp); + + pxp->hw_state_invalidated = false; +} + +void intel_pxp_resume(struct intel_pxp *pxp) +{ + if (!intel_pxp_is_enabled(pxp)) + return; + + /* + * The PXP component gets automatically unbound when we go into S3 and + * re-bound after we come out, so in that scenario we can defer the + * hw init to the bind call. + */ + if (!pxp->pxp_component) + return; + + intel_pxp_init_hw(pxp); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h new file mode 100644 index 000000000000..c89e97a0c3d0 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_pm.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_PM_H__ +#define __INTEL_PXP_PM_H__ + +#include "intel_pxp_types.h" + +#ifdef CONFIG_DRM_I915_PXP +void intel_pxp_suspend(struct intel_pxp *pxp, bool runtime); +void intel_pxp_resume(struct intel_pxp *pxp); +#else +static inline void intel_pxp_suspend(struct intel_pxp *pxp, bool runtime) +{ +} + +static inline void intel_pxp_resume(struct intel_pxp *pxp) +{ +} +#endif + +#endif /* __INTEL_PXP_PM_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c new file mode 100644 index 000000000000..d02732f04757 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c @@ -0,0 +1,175 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#include "drm/i915_drm.h" +#include "i915_drv.h" + +#include "intel_pxp.h" +#include "intel_pxp_cmd.h" +#include "intel_pxp_session.h" +#include "intel_pxp_tee.h" +#include "intel_pxp_types.h" + +#define ARB_SESSION I915_PROTECTED_CONTENT_DEFAULT_SESSION /* shorter define */ + +#define GEN12_KCR_SIP _MMIO(0x32260) /* KCR hwdrm session in play 0-31 */ + +/* PXP global terminate register for session termination */ +#define PXP_GLOBAL_TERMINATE _MMIO(0x320f8) + +static bool intel_pxp_session_is_in_play(struct intel_pxp *pxp, u32 id) +{ + struct intel_uncore *uncore = pxp_to_gt(pxp)->uncore; + intel_wakeref_t wakeref; + u32 sip = 0; + + /* if we're suspended the session is considered off */ + with_intel_runtime_pm_if_in_use(uncore->rpm, wakeref) + sip = intel_uncore_read(uncore, GEN12_KCR_SIP); + + return sip & BIT(id); +} + +static int pxp_wait_for_session_state(struct intel_pxp *pxp, u32 id, bool in_play) +{ + struct intel_uncore *uncore = pxp_to_gt(pxp)->uncore; + intel_wakeref_t wakeref; + u32 mask = BIT(id); + int ret; + + /* if we're suspended the session is considered off */ + wakeref = intel_runtime_pm_get_if_in_use(uncore->rpm); + if (!wakeref) + return in_play ? -ENODEV : 0; + + ret = intel_wait_for_register(uncore, + GEN12_KCR_SIP, + mask, + in_play ? mask : 0, + 100); + + intel_runtime_pm_put(uncore->rpm, wakeref); + + return ret; +} + +static int pxp_create_arb_session(struct intel_pxp *pxp) +{ + struct intel_gt *gt = pxp_to_gt(pxp); + int ret; + + pxp->arb_is_valid = false; + + if (intel_pxp_session_is_in_play(pxp, ARB_SESSION)) { + drm_err(>->i915->drm, "arb session already in play at creation time\n"); + return -EEXIST; + } + + ret = intel_pxp_tee_cmd_create_arb_session(pxp, ARB_SESSION); + if (ret) { + drm_err(>->i915->drm, "tee cmd for arb session creation failed\n"); + return ret; + } + + ret = pxp_wait_for_session_state(pxp, ARB_SESSION, true); + if (ret) { + drm_err(>->i915->drm, "arb session failed to go in play\n"); + return ret; + } + + if (!++pxp->key_instance) + ++pxp->key_instance; + + pxp->arb_is_valid = true; + + return 0; +} + +static int pxp_terminate_arb_session_and_global(struct intel_pxp *pxp) +{ + int ret; + struct intel_gt *gt = pxp_to_gt(pxp); + + /* must mark termination in progress calling this function */ + GEM_WARN_ON(pxp->arb_is_valid); + + /* terminate the hw sessions */ + ret = intel_pxp_terminate_session(pxp, ARB_SESSION); + if (ret) { + drm_err(>->i915->drm, "Failed to submit session termination\n"); + return ret; + } + + ret = pxp_wait_for_session_state(pxp, ARB_SESSION, false); + if (ret) { + drm_err(>->i915->drm, "Session state did not clear\n"); + return ret; + } + + intel_uncore_write(gt->uncore, PXP_GLOBAL_TERMINATE, 1); + + return ret; +} + +static void pxp_terminate(struct intel_pxp *pxp) +{ + int ret; + + pxp->hw_state_invalidated = true; + + /* + * if we fail to submit the termination there is no point in waiting for + * it to complete. PXP will be marked as non-active until the next + * termination is issued. + */ + ret = pxp_terminate_arb_session_and_global(pxp); + if (ret) + complete_all(&pxp->termination); +} + +static void pxp_terminate_complete(struct intel_pxp *pxp) +{ + /* Re-create the arb session after teardown handle complete */ + if (fetch_and_zero(&pxp->hw_state_invalidated)) + pxp_create_arb_session(pxp); + + complete_all(&pxp->termination); +} + +void intel_pxp_session_work(struct work_struct *work) +{ + struct intel_pxp *pxp = container_of(work, typeof(*pxp), session_work); + struct intel_gt *gt = pxp_to_gt(pxp); + intel_wakeref_t wakeref; + u32 events = 0; + + spin_lock_irq(>->irq_lock); + events = fetch_and_zero(&pxp->session_events); + spin_unlock_irq(>->irq_lock); + + if (!events) + return; + + if (events & PXP_INVAL_REQUIRED) + intel_pxp_invalidate(pxp); + + /* + * If we're processing an event while suspending then don't bother, + * we're going to re-init everything on resume anyway. + */ + wakeref = intel_runtime_pm_get_if_in_use(gt->uncore->rpm); + if (!wakeref) + return; + + if (events & PXP_TERMINATION_REQUEST) { + events &= ~PXP_TERMINATION_COMPLETE; + pxp_terminate(pxp); + } + + if (events & PXP_TERMINATION_COMPLETE) + pxp_terminate_complete(pxp); + + intel_runtime_pm_put(gt->uncore->rpm, wakeref); +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.h b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h new file mode 100644 index 000000000000..ba4c9d2b94b7 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_SESSION_H__ +#define __INTEL_PXP_SESSION_H__ + +#include <linux/types.h> + +struct work_struct; + +void intel_pxp_session_work(struct work_struct *work); + +#endif /* __INTEL_PXP_SESSION_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c new file mode 100644 index 000000000000..49508f31dcb7 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c @@ -0,0 +1,172 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright(c) 2020 Intel Corporation. + */ + +#include <linux/component.h> +#include "drm/i915_pxp_tee_interface.h" +#include "drm/i915_component.h" +#include "i915_drv.h" +#include "intel_pxp.h" +#include "intel_pxp_session.h" +#include "intel_pxp_tee.h" +#include "intel_pxp_tee_interface.h" + +static inline struct intel_pxp *i915_dev_to_pxp(struct device *i915_kdev) +{ + return &kdev_to_i915(i915_kdev)->gt.pxp; +} + +static int intel_pxp_tee_io_message(struct intel_pxp *pxp, + void *msg_in, u32 msg_in_size, + void *msg_out, u32 msg_out_max_size, + u32 *msg_out_rcv_size) +{ + struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915; + struct i915_pxp_component *pxp_component = pxp->pxp_component; + int ret = 0; + + mutex_lock(&pxp->tee_mutex); + + /* + * The binding of the component is asynchronous from i915 probe, so we + * can't be sure it has happened. + */ + if (!pxp_component) { + ret = -ENODEV; + goto unlock; + } + + ret = pxp_component->ops->send(pxp_component->tee_dev, msg_in, msg_in_size); + if (ret) { + drm_err(&i915->drm, "Failed to send PXP TEE message\n"); + goto unlock; + } + + ret = pxp_component->ops->recv(pxp_component->tee_dev, msg_out, msg_out_max_size); + if (ret < 0) { + drm_err(&i915->drm, "Failed to receive PXP TEE message\n"); + goto unlock; + } + + if (ret > msg_out_max_size) { + drm_err(&i915->drm, + "Failed to receive PXP TEE message due to unexpected output size\n"); + ret = -ENOSPC; + goto unlock; + } + + if (msg_out_rcv_size) + *msg_out_rcv_size = ret; + + ret = 0; +unlock: + mutex_unlock(&pxp->tee_mutex); + return ret; +} + +/** + * i915_pxp_tee_component_bind - bind function to pass the function pointers to pxp_tee + * @i915_kdev: pointer to i915 kernel device + * @tee_kdev: pointer to tee kernel device + * @data: pointer to pxp_tee_master containing the function pointers + * + * This bind function is called during the system boot or resume from system sleep. + * + * Return: return 0 if successful. + */ +static int i915_pxp_tee_component_bind(struct device *i915_kdev, + struct device *tee_kdev, void *data) +{ + struct drm_i915_private *i915 = kdev_to_i915(i915_kdev); + struct intel_pxp *pxp = i915_dev_to_pxp(i915_kdev); + intel_wakeref_t wakeref; + + mutex_lock(&pxp->tee_mutex); + pxp->pxp_component = data; + pxp->pxp_component->tee_dev = tee_kdev; + mutex_unlock(&pxp->tee_mutex); + + /* if we are suspended, the HW will be re-initialized on resume */ + wakeref = intel_runtime_pm_get_if_in_use(&i915->runtime_pm); + if (!wakeref) + return 0; + + /* the component is required to fully start the PXP HW */ + intel_pxp_init_hw(pxp); + + intel_runtime_pm_put(&i915->runtime_pm, wakeref); + + return 0; +} + +static void i915_pxp_tee_component_unbind(struct device *i915_kdev, + struct device *tee_kdev, void *data) +{ + struct intel_pxp *pxp = i915_dev_to_pxp(i915_kdev); + + intel_pxp_fini_hw(pxp); + + mutex_lock(&pxp->tee_mutex); + pxp->pxp_component = NULL; + mutex_unlock(&pxp->tee_mutex); +} + +static const struct component_ops i915_pxp_tee_component_ops = { + .bind = i915_pxp_tee_component_bind, + .unbind = i915_pxp_tee_component_unbind, +}; + +int intel_pxp_tee_component_init(struct intel_pxp *pxp) +{ + int ret; + struct intel_gt *gt = pxp_to_gt(pxp); + struct drm_i915_private *i915 = gt->i915; + + ret = component_add_typed(i915->drm.dev, &i915_pxp_tee_component_ops, + I915_COMPONENT_PXP); + if (ret < 0) { + drm_err(&i915->drm, "Failed to add PXP component (%d)\n", ret); + return ret; + } + + pxp->pxp_component_added = true; + + return 0; +} + +void intel_pxp_tee_component_fini(struct intel_pxp *pxp) +{ + struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915; + + if (!pxp->pxp_component_added) + return; + + component_del(i915->drm.dev, &i915_pxp_tee_component_ops); + pxp->pxp_component_added = false; +} + +int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, + int arb_session_id) +{ + struct drm_i915_private *i915 = pxp_to_gt(pxp)->i915; + struct pxp_tee_create_arb_in msg_in = {0}; + struct pxp_tee_create_arb_out msg_out = {0}; + int ret; + + msg_in.header.api_version = PXP_TEE_APIVER; + msg_in.header.command_id = PXP_TEE_ARB_CMDID; + msg_in.header.buffer_len = sizeof(msg_in) - sizeof(msg_in.header); + msg_in.protection_mode = PXP_TEE_ARB_PROTECTION_MODE; + msg_in.session_id = arb_session_id; + + ret = intel_pxp_tee_io_message(pxp, + &msg_in, sizeof(msg_in), + &msg_out, sizeof(msg_out), + NULL); + + if (ret) + drm_err(&i915->drm, "Failed to send tee msg ret=[%d]\n", ret); + + return ret; +} diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h new file mode 100644 index 000000000000..c136053ce340 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_TEE_H__ +#define __INTEL_PXP_TEE_H__ + +#include "intel_pxp.h" + +int intel_pxp_tee_component_init(struct intel_pxp *pxp); +void intel_pxp_tee_component_fini(struct intel_pxp *pxp); + +int intel_pxp_tee_cmd_create_arb_session(struct intel_pxp *pxp, + int arb_session_id); + +#endif /* __INTEL_PXP_TEE_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h b/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h new file mode 100644 index 000000000000..36e9b0868f5c --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee_interface.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_TEE_INTERFACE_H__ +#define __INTEL_PXP_TEE_INTERFACE_H__ + +#include <linux/types.h> + +#define PXP_TEE_APIVER 0x40002 +#define PXP_TEE_ARB_CMDID 0x1e +#define PXP_TEE_ARB_PROTECTION_MODE 0x2 + +/* PXP TEE message header */ +struct pxp_tee_cmd_header { + u32 api_version; + u32 command_id; + u32 status; + /* Length of the message (excluding the header) */ + u32 buffer_len; +} __packed; + +/* PXP TEE message input to create a arbitrary session */ +struct pxp_tee_create_arb_in { + struct pxp_tee_cmd_header header; + u32 protection_mode; + u32 session_id; +} __packed; + +/* PXP TEE message output to create a arbitrary session */ +struct pxp_tee_create_arb_out { + struct pxp_tee_cmd_header header; +} __packed; + +#endif /* __INTEL_PXP_TEE_INTERFACE_H__ */ diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_types.h b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h new file mode 100644 index 000000000000..73ef7d1754e1 --- /dev/null +++ b/drivers/gpu/drm/i915/pxp/intel_pxp_types.h @@ -0,0 +1,83 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright(c) 2020, Intel Corporation. All rights reserved. + */ + +#ifndef __INTEL_PXP_TYPES_H__ +#define __INTEL_PXP_TYPES_H__ + +#include <linux/completion.h> +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/types.h> +#include <linux/workqueue.h> + +struct intel_context; +struct i915_pxp_component; + +/** + * struct intel_pxp - pxp state + */ +struct intel_pxp { + /** + * @pxp_component: i915_pxp_component struct of the bound mei_pxp + * module. Only set and cleared inside component bind/unbind functions, + * which are protected by &tee_mutex. + */ + struct i915_pxp_component *pxp_component; + /** + * @pxp_component_added: track if the pxp component has been added. + * Set and cleared in tee init and fini functions respectively. + */ + bool pxp_component_added; + + /** @ce: kernel-owned context used for PXP operations */ + struct intel_context *ce; + + /** @arb_mutex: protects arb session start */ + struct mutex arb_mutex; + /** + * @arb_is_valid: tracks arb session status. + * After a teardown, the arb session can still be in play on the HW + * even if the keys are gone, so we can't rely on the HW state of the + * session to know if it's valid and need to track the status in SW. + */ + bool arb_is_valid; + + /** + * @key_instance: tracks which key instance we're on, so we can use it + * to determine if an object was created using the current key or a + * previous one. + */ + u32 key_instance; + + /** @tee_mutex: protects the tee channel binding and messaging. */ + struct mutex tee_mutex; + + /** + * @hw_state_invalidated: if the HW perceives an attack on the integrity + * of the encryption it will invalidate the keys and expect SW to + * re-initialize the session. We keep track of this state to make sure + * we only re-start the arb session when required. + */ + bool hw_state_invalidated; + + /** @irq_enabled: tracks the status of the kcr irqs */ + bool irq_enabled; + /** + * @termination: tracks the status of a pending termination. Only + * re-initialized under gt->irq_lock and completed in &session_work. + */ + struct completion termination; + + /** @session_work: worker that manages session events. */ + struct work_struct session_work; + /** @session_events: pending session events, protected with gt->irq_lock. */ + u32 session_events; +#define PXP_TERMINATION_REQUEST BIT(0) +#define PXP_TERMINATION_COMPLETE BIT(1) +#define PXP_INVAL_REQUIRED BIT(2) +}; + +#endif /* __INTEL_PXP_TYPES_H__ */ diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index f843a5040706..46f4236039a9 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -155,7 +155,7 @@ static int igt_ppgtt_alloc(void *arg) if (!HAS_PPGTT(dev_priv)) return 0; - ppgtt = i915_ppgtt_create(&dev_priv->gt); + ppgtt = i915_ppgtt_create(&dev_priv->gt, 0); if (IS_ERR(ppgtt)) return PTR_ERR(ppgtt); @@ -1053,7 +1053,7 @@ static int exercise_ppgtt(struct drm_i915_private *dev_priv, if (IS_ERR(file)) return PTR_ERR(file); - ppgtt = i915_ppgtt_create(&dev_priv->gt); + ppgtt = i915_ppgtt_create(&dev_priv->gt, 0); if (IS_ERR(ppgtt)) { err = PTR_ERR(ppgtt); goto out_free; @@ -1300,7 +1300,7 @@ static int exercise_mock(struct drm_i915_private *i915, if (!ctx) return -ENOMEM; - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); err = func(vm, 0, min(vm->total, limit), end_time); i915_vm_put(vm); @@ -1848,7 +1848,7 @@ static int igt_cs_tlb(void *arg) goto out_unlock; } - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); if (i915_is_ggtt(vm)) goto out_vm; diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h index cfa5c4165a4f..3cf6758931f9 100644 --- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h +++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h @@ -47,5 +47,6 @@ selftest(execlists, intel_execlists_live_selftests) selftest(ring_submission, intel_ring_submission_live_selftests) selftest(perf, i915_perf_live_selftests) selftest(slpc, intel_slpc_live_selftests) +selftest(guc, intel_guc_live_selftests) /* Here be dragons: keep last to run last! */ selftest(late_gt_pm, intel_gt_pm_late_selftests) diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c index dd0607254a95..1f10fe36619b 100644 --- a/drivers/gpu/drm/i915/selftests/i915_vma.c +++ b/drivers/gpu/drm/i915/selftests/i915_vma.c @@ -39,7 +39,7 @@ static bool assert_vma(struct i915_vma *vma, { bool ok = true; - if (vma->vm != rcu_access_pointer(ctx->vm)) { + if (vma->vm != ctx->vm) { pr_err("VMA created with wrong VM\n"); ok = false; } @@ -118,7 +118,7 @@ static int create_vmas(struct drm_i915_private *i915, struct i915_vma *vma; int err; - vm = i915_gem_context_get_vm_rcu(ctx); + vm = i915_gem_context_get_eb_vm(ctx); vma = checked_vma_instance(obj, vm, NULL); i915_vm_put(vm); if (IS_ERR(vma)) diff --git a/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.c b/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.c index 4b328346b48a..310fb83c527e 100644 --- a/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.c +++ b/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.c @@ -14,6 +14,18 @@ #define REDUCED_PREEMPT 10 #define WAIT_FOR_RESET_TIME 10000 +struct intel_engine_cs *intel_selftest_find_any_engine(struct intel_gt *gt) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + + for_each_engine(engine, gt, id) + return engine; + + pr_err("No valid engine found!\n"); + return NULL; +} + int intel_selftest_modify_policy(struct intel_engine_cs *engine, struct intel_selftest_saved_policy *saved, u32 modify_type) diff --git a/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.h b/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.h index 35c098601ac0..ae60bb507f45 100644 --- a/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.h +++ b/drivers/gpu/drm/i915/selftests/intel_scheduler_helpers.h @@ -10,6 +10,7 @@ struct i915_request; struct intel_engine_cs; +struct intel_gt; struct intel_selftest_saved_policy { u32 flags; @@ -23,6 +24,7 @@ enum selftest_scheduler_modify { SELFTEST_SCHEDULER_MODIFY_FAST_RESET, }; +struct intel_engine_cs *intel_selftest_find_any_engine(struct intel_gt *gt); int intel_selftest_modify_policy(struct intel_engine_cs *engine, struct intel_selftest_saved_policy *saved, enum selftest_scheduler_modify modify_type); diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c index 720b60853f8b..bc8128170a99 100644 --- a/drivers/gpu/drm/i915/selftests/intel_uncore.c +++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c @@ -62,30 +62,40 @@ static int intel_fw_table_check(const struct intel_forcewake_range *ranges, static int intel_shadow_table_check(void) { struct { - const i915_reg_t *regs; + const struct i915_range *regs; unsigned int size; - } reg_lists[] = { + } range_lists[] = { { gen8_shadowed_regs, ARRAY_SIZE(gen8_shadowed_regs) }, { gen11_shadowed_regs, ARRAY_SIZE(gen11_shadowed_regs) }, { gen12_shadowed_regs, ARRAY_SIZE(gen12_shadowed_regs) }, - { xehp_shadowed_regs, ARRAY_SIZE(xehp_shadowed_regs) }, + { dg2_shadowed_regs, ARRAY_SIZE(dg2_shadowed_regs) }, }; - const i915_reg_t *reg; + const struct i915_range *range; unsigned int i, j; s32 prev; - for (j = 0; j < ARRAY_SIZE(reg_lists); ++j) { - reg = reg_lists[j].regs; - for (i = 0, prev = -1; i < reg_lists[j].size; i++, reg++) { - u32 offset = i915_mmio_reg_offset(*reg); + for (j = 0; j < ARRAY_SIZE(range_lists); ++j) { + range = range_lists[j].regs; + for (i = 0, prev = -1; i < range_lists[j].size; i++, range++) { + if (range->end < range->start) { + pr_err("%s: range[%d]:(%06x-%06x) has end before start\n", + __func__, i, range->start, range->end); + return -EINVAL; + } + + if (prev >= (s32)range->start) { + pr_err("%s: range[%d]:(%06x-%06x) is before end of previous (%06x)\n", + __func__, i, range->start, range->end, prev); + return -EINVAL; + } - if (prev >= (s32)offset) { - pr_err("%s: entry[%d]:(%x) is before previous (%x)\n", - __func__, i, offset, prev); + if (range->start % 4) { + pr_err("%s: range[%d]:(%06x-%06x) has non-dword-aligned start\n", + __func__, i, range->start, range->end); return -EINVAL; } - prev = offset; + prev = range->end; } } diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 82af095f6b81..a342d701c91c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -78,22 +78,21 @@ void ttm_mem_io_free(struct ttm_device *bdev, /** * ttm_move_memcpy - Helper to perform a memcpy ttm move operation. - * @bo: The struct ttm_buffer_object. - * @new_mem: The struct ttm_resource we're moving to (copy destination). - * @new_iter: A struct ttm_kmap_iter representing the destination resource. + * @clear: Whether to clear rather than copy. + * @num_pages: Number of pages of the operation. + * @dst_iter: A struct ttm_kmap_iter representing the destination resource. * @src_iter: A struct ttm_kmap_iter representing the source resource. * * This function is intended to be able to move out async under a * dma-fence if desired. */ -void ttm_move_memcpy(struct ttm_buffer_object *bo, +void ttm_move_memcpy(bool clear, u32 num_pages, struct ttm_kmap_iter *dst_iter, struct ttm_kmap_iter *src_iter) { const struct ttm_kmap_iter_ops *dst_ops = dst_iter->ops; const struct ttm_kmap_iter_ops *src_ops = src_iter->ops; - struct ttm_tt *ttm = bo->ttm; struct dma_buf_map src_map, dst_map; pgoff_t i; @@ -102,10 +101,7 @@ void ttm_move_memcpy(struct ttm_buffer_object *bo, return; /* Don't move nonexistent data. Clear destination instead. */ - if (src_ops->maps_tt && (!ttm || !ttm_tt_is_populated(ttm))) { - if (ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC)) - return; - + if (clear) { for (i = 0; i < num_pages; ++i) { dst_ops->map_local(dst_iter, &dst_map, i); if (dst_map.is_iomem) @@ -148,6 +144,7 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, struct ttm_kmap_iter_linear_io io; } _dst_iter, _src_iter; struct ttm_kmap_iter *dst_iter, *src_iter; + bool clear; int ret = 0; if (ttm && ((ttm->page_flags & TTM_TT_FLAG_SWAPPED) || @@ -171,7 +168,9 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo, goto out_src_iter; } - ttm_move_memcpy(bo, dst_mem->num_pages, dst_iter, src_iter); + clear = src_iter->ops->maps_tt && (!ttm || !ttm_tt_is_populated(ttm)); + if (!(clear && ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC))) + ttm_move_memcpy(clear, dst_mem->num_pages, dst_iter, src_iter); if (!src_iter->ops->maps_tt) ttm_kmap_iter_linear_io_fini(&_src_iter.io, bdev, src_mem); diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig index f5fd5b786607..0e0bcd0da852 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -47,3 +47,5 @@ config INTEL_MEI_TXE Intel Bay Trail source "drivers/misc/mei/hdcp/Kconfig" +source "drivers/misc/mei/pxp/Kconfig" + diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile index f1c76f7ee804..d8e5165917f2 100644 --- a/drivers/misc/mei/Makefile +++ b/drivers/misc/mei/Makefile @@ -26,3 +26,4 @@ mei-$(CONFIG_EVENT_TRACING) += mei-trace.o CFLAGS_mei-trace.o = -I$(src) obj-$(CONFIG_INTEL_MEI_HDCP) += hdcp/ +obj-$(CONFIG_INTEL_MEI_PXP) += pxp/ diff --git a/drivers/misc/mei/pxp/Kconfig b/drivers/misc/mei/pxp/Kconfig new file mode 100644 index 000000000000..4029b96afc04 --- /dev/null +++ b/drivers/misc/mei/pxp/Kconfig @@ -0,0 +1,13 @@ + +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020, Intel Corporation. All rights reserved. +# +config INTEL_MEI_PXP + tristate "Intel PXP services of ME Interface" + select INTEL_MEI_ME + depends on DRM_I915 + help + MEI Support for PXP Services on Intel platforms. + + Enables the ME FW services required for PXP support through + I915 display driver of Intel. diff --git a/drivers/misc/mei/pxp/Makefile b/drivers/misc/mei/pxp/Makefile new file mode 100644 index 000000000000..0329950d5794 --- /dev/null +++ b/drivers/misc/mei/pxp/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2020, Intel Corporation. All rights reserved. +# +# Makefile - PXP client driver for Intel MEI Bus Driver. + +obj-$(CONFIG_INTEL_MEI_PXP) += mei_pxp.o diff --git a/drivers/misc/mei/pxp/mei_pxp.c b/drivers/misc/mei/pxp/mei_pxp.c new file mode 100644 index 000000000000..f7380d387bab --- /dev/null +++ b/drivers/misc/mei/pxp/mei_pxp.c @@ -0,0 +1,229 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright © 2020 - 2021 Intel Corporation + */ + +/** + * DOC: MEI_PXP Client Driver + * + * The mei_pxp driver acts as a translation layer between PXP + * protocol implementer (I915) and ME FW by translating PXP + * negotiation messages to ME FW command payloads and vice versa. + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/uuid.h> +#include <linux/mei_cl_bus.h> +#include <linux/component.h> +#include <drm/drm_connector.h> +#include <drm/i915_component.h> +#include <drm/i915_pxp_tee_interface.h> + +#include "mei_pxp.h" + +/** + * mei_pxp_send_message() - Sends a PXP message to ME FW. + * @dev: device corresponding to the mei_cl_device + * @message: a message buffer to send + * @size: size of the message + * Return: 0 on Success, <0 on Failure + */ +static int +mei_pxp_send_message(struct device *dev, const void *message, size_t size) +{ + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !message) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + /* temporary drop const qualifier till the API is fixed */ + byte = mei_cldev_send(cldev, (u8 *)message, size); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + return 0; +} + +/** + * mei_pxp_receive_message() - Receives a PXP message from ME FW. + * @dev: device corresponding to the mei_cl_device + * @buffer: a message buffer to contain the received message + * @size: size of the buffer + * Return: bytes sent on Success, <0 on Failure + */ +static int +mei_pxp_receive_message(struct device *dev, void *buffer, size_t size) +{ + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !buffer) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + byte = mei_cldev_recv(cldev, buffer, size); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + return byte; +} + +static const struct i915_pxp_component_ops mei_pxp_ops = { + .owner = THIS_MODULE, + .send = mei_pxp_send_message, + .recv = mei_pxp_receive_message, +}; + +static int mei_component_master_bind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct i915_pxp_component *comp_master = mei_cldev_get_drvdata(cldev); + int ret; + + comp_master->ops = &mei_pxp_ops; + comp_master->tee_dev = dev; + ret = component_bind_all(dev, comp_master); + if (ret < 0) + return ret; + + return 0; +} + +static void mei_component_master_unbind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct i915_pxp_component *comp_master = mei_cldev_get_drvdata(cldev); + + component_unbind_all(dev, comp_master); +} + +static const struct component_master_ops mei_component_master_ops = { + .bind = mei_component_master_bind, + .unbind = mei_component_master_unbind, +}; + +/** + * mei_pxp_component_match - compare function for matching mei pxp. + * + * The function checks if the driver is i915, the subcomponent is PXP + * and the grand parent of pxp and the parent of i915 are the same + * PCH device. + * + * @dev: master device + * @subcomponent: subcomponent to match (I915_COMPONENT_PXP) + * @data: compare data (mei pxp device) + * + * Return: + * * 1 - if components match + * * 0 - otherwise + */ +static int mei_pxp_component_match(struct device *dev, int subcomponent, + void *data) +{ + struct device *base = data; + + if (strcmp(dev->driver->name, "i915") || + subcomponent != I915_COMPONENT_PXP) + return 0; + + base = base->parent; + if (!base) + return 0; + + base = base->parent; + dev = dev->parent; + + return (base && dev && dev == base); +} + +static int mei_pxp_probe(struct mei_cl_device *cldev, + const struct mei_cl_device_id *id) +{ + struct i915_pxp_component *comp_master; + struct component_match *master_match; + int ret; + + ret = mei_cldev_enable(cldev); + if (ret < 0) { + dev_err(&cldev->dev, "mei_cldev_enable Failed. %d\n", ret); + goto enable_err_exit; + } + + comp_master = kzalloc(sizeof(*comp_master), GFP_KERNEL); + if (!comp_master) { + ret = -ENOMEM; + goto err_exit; + } + + master_match = NULL; + component_match_add_typed(&cldev->dev, &master_match, + mei_pxp_component_match, &cldev->dev); + if (IS_ERR_OR_NULL(master_match)) { + ret = -ENOMEM; + goto err_exit; + } + + mei_cldev_set_drvdata(cldev, comp_master); + ret = component_master_add_with_match(&cldev->dev, + &mei_component_master_ops, + master_match); + if (ret < 0) { + dev_err(&cldev->dev, "Master comp add failed %d\n", ret); + goto err_exit; + } + + return 0; + +err_exit: + mei_cldev_set_drvdata(cldev, NULL); + kfree(comp_master); + mei_cldev_disable(cldev); +enable_err_exit: + return ret; +} + +static void mei_pxp_remove(struct mei_cl_device *cldev) +{ + struct i915_pxp_component *comp_master = mei_cldev_get_drvdata(cldev); + int ret; + + component_master_del(&cldev->dev, &mei_component_master_ops); + kfree(comp_master); + mei_cldev_set_drvdata(cldev, NULL); + + ret = mei_cldev_disable(cldev); + if (ret) + dev_warn(&cldev->dev, "mei_cldev_disable() failed\n"); +} + +/* fbf6fcf1-96cf-4e2e-a6a6-1bab8cbe36b1 : PAVP GUID*/ +#define MEI_GUID_PXP GUID_INIT(0xfbf6fcf1, 0x96cf, 0x4e2e, 0xA6, \ + 0xa6, 0x1b, 0xab, 0x8c, 0xbe, 0x36, 0xb1) + +static struct mei_cl_device_id mei_pxp_tbl[] = { + { .uuid = MEI_GUID_PXP, .version = MEI_CL_VERSION_ANY }, + { } +}; +MODULE_DEVICE_TABLE(mei, mei_pxp_tbl); + +static struct mei_cl_driver mei_pxp_driver = { + .id_table = mei_pxp_tbl, + .name = KBUILD_MODNAME, + .probe = mei_pxp_probe, + .remove = mei_pxp_remove, +}; + +module_mei_cl_driver(mei_pxp_driver); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("MEI PXP"); diff --git a/drivers/misc/mei/pxp/mei_pxp.h b/drivers/misc/mei/pxp/mei_pxp.h new file mode 100644 index 000000000000..e7b15373fefd --- /dev/null +++ b/drivers/misc/mei/pxp/mei_pxp.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright © 2020 Intel Corporation + * + * Authors: + * Vitaly Lubart <vitaly.lubart@intel.com> + */ + +#ifndef __MEI_PXP_H__ +#define __MEI_PXP_H__ + +/* me_pxp_status: Enumeration of all PXP Status Codes */ +enum me_pxp_status { + ME_PXP_STATUS_SUCCESS = 0x0000, + +}; + +#endif /* __MEI_PXP_H__ */ diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index ca6caba8a191..f4d441b1a8bf 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -145,7 +145,7 @@ static inline int regulator_lock_nested(struct regulator_dev *rdev, mutex_lock(®ulator_nesting_mutex); - if (ww_ctx || !ww_mutex_trylock(&rdev->mutex)) { + if (!ww_mutex_trylock(&rdev->mutex, ww_ctx)) { if (rdev->mutex_owner == current) rdev->ref_cnt++; else diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index 55c3b123581b..c1e2a43d2d1e 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -29,6 +29,7 @@ enum i915_component_type { I915_COMPONENT_AUDIO = 1, I915_COMPONENT_HDCP, + I915_COMPONENT_PXP }; /* MAX_PORT is the number of port diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h new file mode 100644 index 000000000000..af593ec64469 --- /dev/null +++ b/include/drm/i915_pxp_tee_interface.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2020 Intel Corporation + */ + +#ifndef _I915_PXP_TEE_INTERFACE_H_ +#define _I915_PXP_TEE_INTERFACE_H_ + +#include <linux/mutex.h> +#include <linux/device.h> + +/** + * struct i915_pxp_component_ops - ops for PXP services. + * @owner: Module providing the ops + * @send: sends data to PXP + * @receive: receives data from PXP + */ +struct i915_pxp_component_ops { + /** + * @owner: owner of the module provding the ops + */ + struct module *owner; + + int (*send)(struct device *dev, const void *message, size_t size); + int (*recv)(struct device *dev, void *buffer, size_t size); +}; + +/** + * struct i915_pxp_component - Used for communication between i915 and TEE + * drivers for the PXP services + * @tee_dev: device that provide the PXP service from TEE Bus. + * @pxp_ops: Ops implemented by TEE driver, used by i915 driver. + */ +struct i915_pxp_component { + struct device *tee_dev; + const struct i915_pxp_component_ops *ops; + + /* To protect the above members. */ + struct mutex mutex; +}; + +#endif /* _I915_TEE_PXP_INTERFACE_H_ */ diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 68d6069572aa..5f087575194b 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -322,7 +322,7 @@ int ttm_bo_tt_bind(struct ttm_buffer_object *bo, struct ttm_resource *mem); */ void ttm_bo_tt_destroy(struct ttm_buffer_object *bo); -void ttm_move_memcpy(struct ttm_buffer_object *bo, +void ttm_move_memcpy(bool clear, u32 num_pages, struct ttm_kmap_iter *dst_iter, struct ttm_kmap_iter *src_iter); diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index 764138ad8583..8b6c20636a79 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -357,7 +357,7 @@ static inline int dma_resv_lock_slow_interruptible(struct dma_resv *obj, */ static inline bool __must_check dma_resv_trylock(struct dma_resv *obj) { - return ww_mutex_trylock(&obj->lock); + return ww_mutex_trylock(&obj->lock, NULL); } /** diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h index 29db736af86d..bb763085479a 100644 --- a/include/linux/ww_mutex.h +++ b/include/linux/ww_mutex.h @@ -28,12 +28,10 @@ #ifndef CONFIG_PREEMPT_RT #define WW_MUTEX_BASE mutex #define ww_mutex_base_init(l,n,k) __mutex_init(l,n,k) -#define ww_mutex_base_trylock(l) mutex_trylock(l) #define ww_mutex_base_is_locked(b) mutex_is_locked((b)) #else #define WW_MUTEX_BASE rt_mutex #define ww_mutex_base_init(l,n,k) __rt_mutex_init(l,n,k) -#define ww_mutex_base_trylock(l) rt_mutex_trylock(l) #define ww_mutex_base_is_locked(b) rt_mutex_base_is_locked(&(b)->rtmutex) #endif @@ -339,17 +337,8 @@ ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, extern void ww_mutex_unlock(struct ww_mutex *lock); -/** - * ww_mutex_trylock - tries to acquire the w/w mutex without acquire context - * @lock: mutex to lock - * - * Trylocks a mutex without acquire context, so no deadlock detection is - * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise. - */ -static inline int __must_check ww_mutex_trylock(struct ww_mutex *lock) -{ - return ww_mutex_base_trylock(&lock->base); -} +extern int __must_check ww_mutex_trylock(struct ww_mutex *lock, + struct ww_acquire_ctx *ctx); /*** * ww_mutex_destroy - mark a w/w mutex unusable diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index bde5860b3686..aa2a7eccfb94 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1846,6 +1846,55 @@ struct drm_i915_gem_context_param { * attempted to use it, never re-use this context param number. */ #define I915_CONTEXT_PARAM_RINGSIZE 0xc + +/* + * I915_CONTEXT_PARAM_PROTECTED_CONTENT: + * + * Mark that the context makes use of protected content, which will result + * in the context being invalidated when the protected content session is. + * Given that the protected content session is killed on suspend, the device + * is kept awake for the lifetime of a protected context, so the user should + * make sure to dispose of them once done. + * This flag can only be set at context creation time and, when set to true, + * must be preceded by an explicit setting of I915_CONTEXT_PARAM_RECOVERABLE + * to false. This flag can't be set to true in conjunction with setting the + * I915_CONTEXT_PARAM_BANNABLE flag to false. Creation example: + * + * .. code-block:: C + * + * struct drm_i915_gem_context_create_ext_setparam p_protected = { + * .base = { + * .name = I915_CONTEXT_CREATE_EXT_SETPARAM, + * }, + * .param = { + * .param = I915_CONTEXT_PARAM_PROTECTED_CONTENT, + * .value = 1, + * } + * }; + * struct drm_i915_gem_context_create_ext_setparam p_norecover = { + * .base = { + * .name = I915_CONTEXT_CREATE_EXT_SETPARAM, + * .next_extension = to_user_pointer(&p_protected), + * }, + * .param = { + * .param = I915_CONTEXT_PARAM_RECOVERABLE, + * .value = 0, + * } + * }; + * struct drm_i915_gem_context_create_ext create = { + * .flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS, + * .extensions = to_user_pointer(&p_norecover); + * }; + * + * ctx_id = gem_context_create_ext(drm_fd, &create); + * + * In addition to the normal failure cases, setting this flag during context + * creation can result in the following errors: + * + * -ENODEV: feature not available + * -EPERM: trying to mark a recoverable or not bannable context as protected + */ +#define I915_CONTEXT_PARAM_PROTECTED_CONTENT 0xd /* Must be kept compact -- no holes and well documented */ __u64 value; @@ -2979,8 +3028,12 @@ struct drm_i915_gem_create_ext { * * For I915_GEM_CREATE_EXT_MEMORY_REGIONS usage see * struct drm_i915_gem_create_ext_memory_regions. + * + * For I915_GEM_CREATE_EXT_PROTECTED_CONTENT usage see + * struct drm_i915_gem_create_ext_protected_content. */ #define I915_GEM_CREATE_EXT_MEMORY_REGIONS 0 +#define I915_GEM_CREATE_EXT_PROTECTED_CONTENT 1 __u64 extensions; }; @@ -3038,6 +3091,50 @@ struct drm_i915_gem_create_ext_memory_regions { __u64 regions; }; +/** + * struct drm_i915_gem_create_ext_protected_content - The + * I915_OBJECT_PARAM_PROTECTED_CONTENT extension. + * + * If this extension is provided, buffer contents are expected to be protected + * by PXP encryption and require decryption for scan out and processing. This + * is only possible on platforms that have PXP enabled, on all other scenarios + * using this extension will cause the ioctl to fail and return -ENODEV. The + * flags parameter is reserved for future expansion and must currently be set + * to zero. + * + * The buffer contents are considered invalid after a PXP session teardown. + * + * The encryption is guaranteed to be processed correctly only if the object + * is submitted with a context created using the + * I915_CONTEXT_PARAM_PROTECTED_CONTENT flag. This will also enable extra checks + * at submission time on the validity of the objects involved. + * + * Below is an example on how to create a protected object: + * + * .. code-block:: C + * + * struct drm_i915_gem_create_ext_protected_content protected_ext = { + * .base = { .name = I915_GEM_CREATE_EXT_PROTECTED_CONTENT }, + * .flags = 0, + * }; + * struct drm_i915_gem_create_ext create_ext = { + * .size = PAGE_SIZE, + * .extensions = (uintptr_t)&protected_ext, + * }; + * + * int err = ioctl(fd, DRM_IOCTL_I915_GEM_CREATE_EXT, &create_ext); + * if (err) ... + */ +struct drm_i915_gem_create_ext_protected_content { + /** @base: Extension link. See struct i915_user_extension. */ + struct i915_user_extension base; + /** @flags: reserved for future usage, currently MBZ */ + __u32 flags; +}; + +/* ID of the protected content session managed by i915 when PXP is active */ +#define I915_PROTECTED_CONTENT_DEFAULT_SESSION 0xf + #if defined(__cplusplus) } #endif diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index d456579d0952..2fede72b6af5 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -94,6 +94,9 @@ static inline unsigned long __owner_flags(unsigned long owner) return owner & MUTEX_FLAGS; } +/* + * Returns: __mutex_owner(lock) on failure or NULL on success. + */ static inline struct task_struct *__mutex_trylock_common(struct mutex *lock, bool handoff) { unsigned long owner, curr = (unsigned long)current; @@ -736,6 +739,44 @@ __ww_mutex_lock(struct mutex *lock, unsigned int state, unsigned int subclass, return __mutex_lock_common(lock, state, subclass, NULL, ip, ww_ctx, true); } +/** + * ww_mutex_trylock - tries to acquire the w/w mutex with optional acquire context + * @ww: mutex to lock + * @ww_ctx: optional w/w acquire context + * + * Trylocks a mutex with the optional acquire context; no deadlock detection is + * possible. Returns 1 if the mutex has been acquired successfully, 0 otherwise. + * + * Unlike ww_mutex_lock, no deadlock handling is performed. However, if a @ctx is + * specified, -EALREADY handling may happen in calls to ww_mutex_trylock. + * + * A mutex acquired with this function must be released with ww_mutex_unlock. + */ +int ww_mutex_trylock(struct ww_mutex *ww, struct ww_acquire_ctx *ww_ctx) +{ + if (!ww_ctx) + return mutex_trylock(&ww->base); + + MUTEX_WARN_ON(ww->base.magic != &ww->base); + + /* + * Reset the wounded flag after a kill. No other process can + * race and wound us here, since they can't have a valid owner + * pointer if we don't have any locks held. + */ + if (ww_ctx->acquired == 0) + ww_ctx->wounded = 0; + + if (__mutex_trylock(&ww->base)) { + ww_mutex_set_context_fastpath(ww, ww_ctx); + mutex_acquire_nest(&ww->base.dep_map, 0, 1, &ww_ctx->dep_map, _RET_IP_); + return 1; + } + + return 0; +} +EXPORT_SYMBOL(ww_mutex_trylock); + #ifdef CONFIG_DEBUG_LOCK_ALLOC void __sched mutex_lock_nested(struct mutex *lock, unsigned int subclass) diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c index 3e82f449b4ff..d63ac411f367 100644 --- a/kernel/locking/test-ww_mutex.c +++ b/kernel/locking/test-ww_mutex.c @@ -16,6 +16,15 @@ static DEFINE_WD_CLASS(ww_class); struct workqueue_struct *wq; +#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH +#define ww_acquire_init_noinject(a, b) do { \ + ww_acquire_init((a), (b)); \ + (a)->deadlock_inject_countdown = ~0U; \ + } while (0) +#else +#define ww_acquire_init_noinject(a, b) ww_acquire_init((a), (b)) +#endif + struct test_mutex { struct work_struct work; struct ww_mutex mutex; @@ -36,7 +45,7 @@ static void test_mutex_work(struct work_struct *work) wait_for_completion(&mtx->go); if (mtx->flags & TEST_MTX_TRY) { - while (!ww_mutex_trylock(&mtx->mutex)) + while (!ww_mutex_trylock(&mtx->mutex, NULL)) cond_resched(); } else { ww_mutex_lock(&mtx->mutex, NULL); @@ -109,19 +118,38 @@ static int test_mutex(void) return 0; } -static int test_aa(void) +static int test_aa(bool trylock) { struct ww_mutex mutex; struct ww_acquire_ctx ctx; int ret; + const char *from = trylock ? "trylock" : "lock"; ww_mutex_init(&mutex, &ww_class); ww_acquire_init(&ctx, &ww_class); - ww_mutex_lock(&mutex, &ctx); + if (!trylock) { + ret = ww_mutex_lock(&mutex, &ctx); + if (ret) { + pr_err("%s: initial lock failed!\n", __func__); + goto out; + } + } else { + if (!ww_mutex_trylock(&mutex, &ctx)) { + pr_err("%s: initial trylock failed!\n", __func__); + goto out; + } + } - if (ww_mutex_trylock(&mutex)) { - pr_err("%s: trylocked itself!\n", __func__); + if (ww_mutex_trylock(&mutex, NULL)) { + pr_err("%s: trylocked itself without context from %s!\n", __func__, from); + ww_mutex_unlock(&mutex); + ret = -EINVAL; + goto out; + } + + if (ww_mutex_trylock(&mutex, &ctx)) { + pr_err("%s: trylocked itself with context from %s!\n", __func__, from); ww_mutex_unlock(&mutex); ret = -EINVAL; goto out; @@ -129,17 +157,17 @@ static int test_aa(void) ret = ww_mutex_lock(&mutex, &ctx); if (ret != -EALREADY) { - pr_err("%s: missed deadlock for recursing, ret=%d\n", - __func__, ret); + pr_err("%s: missed deadlock for recursing, ret=%d from %s\n", + __func__, ret, from); if (!ret) ww_mutex_unlock(&mutex); ret = -EINVAL; goto out; } + ww_mutex_unlock(&mutex); ret = 0; out: - ww_mutex_unlock(&mutex); ww_acquire_fini(&ctx); return ret; } @@ -150,7 +178,7 @@ struct test_abba { struct ww_mutex b_mutex; struct completion a_ready; struct completion b_ready; - bool resolve; + bool resolve, trylock; int result; }; @@ -160,8 +188,13 @@ static void test_abba_work(struct work_struct *work) struct ww_acquire_ctx ctx; int err; - ww_acquire_init(&ctx, &ww_class); - ww_mutex_lock(&abba->b_mutex, &ctx); + ww_acquire_init_noinject(&ctx, &ww_class); + if (!abba->trylock) + ww_mutex_lock(&abba->b_mutex, &ctx); + else + WARN_ON(!ww_mutex_trylock(&abba->b_mutex, &ctx)); + + WARN_ON(READ_ONCE(abba->b_mutex.ctx) != &ctx); complete(&abba->b_ready); wait_for_completion(&abba->a_ready); @@ -181,7 +214,7 @@ static void test_abba_work(struct work_struct *work) abba->result = err; } -static int test_abba(bool resolve) +static int test_abba(bool trylock, bool resolve) { struct test_abba abba; struct ww_acquire_ctx ctx; @@ -192,12 +225,18 @@ static int test_abba(bool resolve) INIT_WORK_ONSTACK(&abba.work, test_abba_work); init_completion(&abba.a_ready); init_completion(&abba.b_ready); + abba.trylock = trylock; abba.resolve = resolve; schedule_work(&abba.work); - ww_acquire_init(&ctx, &ww_class); - ww_mutex_lock(&abba.a_mutex, &ctx); + ww_acquire_init_noinject(&ctx, &ww_class); + if (!trylock) + ww_mutex_lock(&abba.a_mutex, &ctx); + else + WARN_ON(!ww_mutex_trylock(&abba.a_mutex, &ctx)); + + WARN_ON(READ_ONCE(abba.a_mutex.ctx) != &ctx); complete(&abba.a_ready); wait_for_completion(&abba.b_ready); @@ -249,7 +288,7 @@ static void test_cycle_work(struct work_struct *work) struct ww_acquire_ctx ctx; int err, erra = 0; - ww_acquire_init(&ctx, &ww_class); + ww_acquire_init_noinject(&ctx, &ww_class); ww_mutex_lock(&cycle->a_mutex, &ctx); complete(cycle->a_signal); @@ -581,7 +620,9 @@ static int stress(int nlocks, int nthreads, unsigned int flags) static int __init test_ww_mutex_init(void) { int ncpus = num_online_cpus(); - int ret; + int ret, i; + + printk(KERN_INFO "Beginning ww mutex selftests\n"); wq = alloc_workqueue("test-ww_mutex", WQ_UNBOUND, 0); if (!wq) @@ -591,17 +632,19 @@ static int __init test_ww_mutex_init(void) if (ret) return ret; - ret = test_aa(); + ret = test_aa(false); if (ret) return ret; - ret = test_abba(false); + ret = test_aa(true); if (ret) return ret; - ret = test_abba(true); - if (ret) - return ret; + for (i = 0; i < 4; i++) { + ret = test_abba(i & 1, i & 2); + if (ret) + return ret; + } ret = test_cycle(ncpus); if (ret) @@ -619,6 +662,7 @@ static int __init test_ww_mutex_init(void) if (ret) return ret; + printk(KERN_INFO "All ww mutex selftests passed\n"); return 0; } diff --git a/kernel/locking/ww_rt_mutex.c b/kernel/locking/ww_rt_mutex.c index 3f1fff7d2780..0e00205cf467 100644 --- a/kernel/locking/ww_rt_mutex.c +++ b/kernel/locking/ww_rt_mutex.c @@ -9,6 +9,31 @@ #define WW_RT #include "rtmutex.c" +int ww_mutex_trylock(struct ww_mutex *lock, struct ww_acquire_ctx *ww_ctx) +{ + struct rt_mutex *rtm = &lock->base; + + if (!ww_ctx) + return rt_mutex_trylock(rtm); + + /* + * Reset the wounded flag after a kill. No other process can + * race and wound us here, since they can't have a valid owner + * pointer if we don't have any locks held. + */ + if (ww_ctx->acquired == 0) + ww_ctx->wounded = 0; + + if (__rt_mutex_trylock(&rtm->rtmutex)) { + ww_mutex_set_context_fastpath(lock, ww_ctx); + mutex_acquire_nest(&rtm->dep_map, 0, 1, ww_ctx->dep_map, _RET_IP_); + return 1; + } + + return 0; +} +EXPORT_SYMBOL(ww_mutex_trylock); + static int __sched __ww_rt_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ww_ctx, unsigned int state, unsigned long ip) diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c index 161108e5d2fe..71652e1c397c 100644 --- a/lib/locking-selftest.c +++ b/lib/locking-selftest.c @@ -258,7 +258,7 @@ static void init_shared_classes(void) #define WWAF(x) ww_acquire_fini(x) #define WWL(x, c) ww_mutex_lock(x, c) -#define WWT(x) ww_mutex_trylock(x) +#define WWT(x) ww_mutex_trylock(x, NULL) #define WWL1(x) ww_mutex_lock(x, NULL) #define WWU(x) ww_mutex_unlock(x) |