diff options
author | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2020-12-09 23:36:18 +0000 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-12-09 23:45:20 +0000 |
commit | d0d829e56674cecaedcbcce3b8b59b966a50efbe (patch) | |
tree | f2215fbbbb74ba3cf7399dfe043104dba6f2f97d /drivers | |
parent | 70a2b431c36483c0c06e589e11c59e438cd0ac06 (diff) | |
download | linux-d0d829e56674cecaedcbcce3b8b59b966a50efbe.tar.bz2 |
drm/i915: split gen8+ flush and bb_start emission functions
These functions are independent from the backend used and can therefore
be split out of the exelists submission file, so they can be re-used by
the upcoming GuC submission backend.
Based on a patch by Chris Wilson.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201209233618.4287-3-chris@chris-wilson.co.uk
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/i915/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 619 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gt/gen8_engine_cs.h | 36 | ||||
-rw-r--r-- | drivers/gpu/drm/i915/gt/intel_execlists_submission.c | 629 |
4 files changed, 664 insertions, 621 deletions
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index aedbd8f52be8..f9ef5199b124 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -82,6 +82,7 @@ gt-y += \ gt/gen6_engine_cs.o \ gt/gen6_ppgtt.o \ gt/gen7_renderclear.o \ + gt/gen8_engine_cs.o \ gt/gen8_ppgtt.o \ gt/intel_breadcrumbs.o \ gt/intel_context.o \ diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c new file mode 100644 index 000000000000..9c6f0ebfa3cf --- /dev/null +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -0,0 +1,619 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2014 Intel Corporation + */ + +#include "gen8_engine_cs.h" +#include "i915_drv.h" +#include "intel_execlists_submission.h" /* XXX */ +#include "intel_gpu_commands.h" +#include "intel_ring.h" + +int gen8_emit_flush_rcs(struct i915_request *rq, u32 mode) +{ + bool vf_flush_wa = false, dc_flush_wa = false; + u32 *cs, flags = 0; + int len; + + flags |= PIPE_CONTROL_CS_STALL; + + if (mode & EMIT_FLUSH) { + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; + flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + } + + if (mode & EMIT_INVALIDATE) { + flags |= PIPE_CONTROL_TLB_INVALIDATE; + flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_QW_WRITE; + flags |= PIPE_CONTROL_STORE_DATA_INDEX; + + /* + * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL + * pipe control. + */ + if (IS_GEN(rq->engine->i915, 9)) + vf_flush_wa = true; + + /* WaForGAMHang:kbl */ + if (IS_KBL_GT_REVID(rq->engine->i915, 0, KBL_REVID_B0)) + dc_flush_wa = true; + } + + len = 6; + + if (vf_flush_wa) + len += 6; + + if (dc_flush_wa) + len += 12; + + cs = intel_ring_begin(rq, len); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + if (vf_flush_wa) + cs = gen8_emit_pipe_control(cs, 0, 0); + + if (dc_flush_wa) + cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_DC_FLUSH_ENABLE, + 0); + + cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); + + if (dc_flush_wa) + cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_CS_STALL, 0); + + intel_ring_advance(rq, cs); + + return 0; +} + +int gen8_emit_flush_xcs(struct i915_request *rq, u32 mode) +{ + u32 cmd, *cs; + + cs = intel_ring_begin(rq, 4); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + cmd = MI_FLUSH_DW + 1; + + /* + * We always require a command barrier so that subsequent + * commands, such as breadcrumb interrupts, are strictly ordered + * wrt the contents of the write cache being flushed to memory + * (and thus being coherent from the CPU). + */ + cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; + + if (mode & EMIT_INVALIDATE) { + cmd |= MI_INVALIDATE_TLB; + if (rq->engine->class == VIDEO_DECODE_CLASS) + cmd |= MI_INVALIDATE_BSD; + } + + *cs++ = cmd; + *cs++ = LRC_PPHWSP_SCRATCH_ADDR; + *cs++ = 0; /* upper addr */ + *cs++ = 0; /* value */ + intel_ring_advance(rq, cs); + + return 0; +} + +int gen11_emit_flush_rcs(struct i915_request *rq, u32 mode) +{ + if (mode & EMIT_FLUSH) { + u32 *cs; + u32 flags = 0; + + flags |= PIPE_CONTROL_CS_STALL; + + flags |= PIPE_CONTROL_TILE_CACHE_FLUSH; + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; + flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + flags |= PIPE_CONTROL_QW_WRITE; + flags |= PIPE_CONTROL_STORE_DATA_INDEX; + + cs = intel_ring_begin(rq, 6); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); + intel_ring_advance(rq, cs); + } + + if (mode & EMIT_INVALIDATE) { + u32 *cs; + u32 flags = 0; + + flags |= PIPE_CONTROL_CS_STALL; + + flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_TLB_INVALIDATE; + flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_QW_WRITE; + flags |= PIPE_CONTROL_STORE_DATA_INDEX; + + cs = intel_ring_begin(rq, 6); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); + intel_ring_advance(rq, cs); + } + + return 0; +} + +static u32 preparser_disable(bool state) +{ + return MI_ARB_CHECK | 1 << 8 | state; +} + +static i915_reg_t aux_inv_reg(const struct intel_engine_cs *engine) +{ + static const i915_reg_t vd[] = { + GEN12_VD0_AUX_NV, + GEN12_VD1_AUX_NV, + GEN12_VD2_AUX_NV, + GEN12_VD3_AUX_NV, + }; + + static const i915_reg_t ve[] = { + GEN12_VE0_AUX_NV, + GEN12_VE1_AUX_NV, + }; + + if (engine->class == VIDEO_DECODE_CLASS) + return vd[engine->instance]; + + if (engine->class == VIDEO_ENHANCEMENT_CLASS) + return ve[engine->instance]; + + GEM_BUG_ON("unknown aux_inv reg\n"); + return INVALID_MMIO_REG; +} + +static u32 *gen12_emit_aux_table_inv(const i915_reg_t inv_reg, u32 *cs) +{ + *cs++ = MI_LOAD_REGISTER_IMM(1); + *cs++ = i915_mmio_reg_offset(inv_reg); + *cs++ = AUX_INV; + *cs++ = MI_NOOP; + + return cs; +} + +int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode) +{ + if (mode & EMIT_FLUSH) { + u32 flags = 0; + u32 *cs; + + flags |= PIPE_CONTROL_TILE_CACHE_FLUSH; + flags |= PIPE_CONTROL_FLUSH_L3; + flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; + flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; + /* Wa_1409600907:tgl */ + flags |= PIPE_CONTROL_DEPTH_STALL; + flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; + flags |= PIPE_CONTROL_FLUSH_ENABLE; + + flags |= PIPE_CONTROL_STORE_DATA_INDEX; + flags |= PIPE_CONTROL_QW_WRITE; + + flags |= PIPE_CONTROL_CS_STALL; + + cs = intel_ring_begin(rq, 6); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + cs = gen12_emit_pipe_control(cs, + PIPE_CONTROL0_HDC_PIPELINE_FLUSH, + flags, LRC_PPHWSP_SCRATCH_ADDR); + intel_ring_advance(rq, cs); + } + + if (mode & EMIT_INVALIDATE) { + u32 flags = 0; + u32 *cs; + + flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_TLB_INVALIDATE; + flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; + flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; + + flags |= PIPE_CONTROL_STORE_DATA_INDEX; + flags |= PIPE_CONTROL_QW_WRITE; + + flags |= PIPE_CONTROL_CS_STALL; + + cs = intel_ring_begin(rq, 8 + 4); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + /* + * Prevent the pre-parser from skipping past the TLB + * invalidate and loading a stale page for the batch + * buffer / request payload. + */ + *cs++ = preparser_disable(true); + + cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); + + /* hsdes: 1809175790 */ + cs = gen12_emit_aux_table_inv(GEN12_GFX_CCS_AUX_NV, cs); + + *cs++ = preparser_disable(false); + intel_ring_advance(rq, cs); + } + + return 0; +} + +int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode) +{ + intel_engine_mask_t aux_inv = 0; + u32 cmd, *cs; + + cmd = 4; + if (mode & EMIT_INVALIDATE) + cmd += 2; + if (mode & EMIT_INVALIDATE) + aux_inv = rq->engine->mask & ~BIT(BCS0); + if (aux_inv) + cmd += 2 * hweight8(aux_inv) + 2; + + cs = intel_ring_begin(rq, cmd); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + if (mode & EMIT_INVALIDATE) + *cs++ = preparser_disable(true); + + cmd = MI_FLUSH_DW + 1; + + /* + * We always require a command barrier so that subsequent + * commands, such as breadcrumb interrupts, are strictly ordered + * wrt the contents of the write cache being flushed to memory + * (and thus being coherent from the CPU). + */ + cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; + + if (mode & EMIT_INVALIDATE) { + cmd |= MI_INVALIDATE_TLB; + if (rq->engine->class == VIDEO_DECODE_CLASS) + cmd |= MI_INVALIDATE_BSD; + } + + *cs++ = cmd; + *cs++ = LRC_PPHWSP_SCRATCH_ADDR; + *cs++ = 0; /* upper addr */ + *cs++ = 0; /* value */ + + if (aux_inv) { /* hsdes: 1809175790 */ + struct intel_engine_cs *engine; + unsigned int tmp; + + *cs++ = MI_LOAD_REGISTER_IMM(hweight8(aux_inv)); + for_each_engine_masked(engine, rq->engine->gt, + aux_inv, tmp) { + *cs++ = i915_mmio_reg_offset(aux_inv_reg(engine)); + *cs++ = AUX_INV; + } + *cs++ = MI_NOOP; + } + + if (mode & EMIT_INVALIDATE) + *cs++ = preparser_disable(false); + + intel_ring_advance(rq, cs); + + return 0; +} + +static inline u32 preempt_address(struct intel_engine_cs *engine) +{ + return (i915_ggtt_offset(engine->status_page.vma) + + I915_GEM_HWS_PREEMPT_ADDR); +} + +static u32 hwsp_offset(const struct i915_request *rq) +{ + const struct intel_timeline_cacheline *cl; + + /* Before the request is executed, the timeline/cachline is fixed */ + + cl = rcu_dereference_protected(rq->hwsp_cacheline, 1); + if (cl) + return cl->ggtt_offset; + + return rcu_dereference_protected(rq->timeline, 1)->hwsp_offset; +} + +int gen8_emit_init_breadcrumb(struct i915_request *rq) +{ + u32 *cs; + + GEM_BUG_ON(i915_request_has_initial_breadcrumb(rq)); + if (!i915_request_timeline(rq)->has_initial_breadcrumb) + return 0; + + cs = intel_ring_begin(rq, 6); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + /* + * Check if we have been preempted before we even get started. + * + * After this point i915_request_started() reports true, even if + * we get preempted and so are no longer running. + */ + *cs++ = MI_ARB_CHECK; + *cs++ = MI_NOOP; + + *cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT; + *cs++ = hwsp_offset(rq); + *cs++ = 0; + *cs++ = rq->fence.seqno - 1; + + intel_ring_advance(rq, cs); + + /* Record the updated position of the request's payload */ + rq->infix = intel_ring_offset(rq, cs); + + __set_bit(I915_FENCE_FLAG_INITIAL_BREADCRUMB, &rq->fence.flags); + + return 0; +} + +int gen8_emit_bb_start_noarb(struct i915_request *rq, + u64 offset, u32 len, + const unsigned int flags) +{ + u32 *cs; + + cs = intel_ring_begin(rq, 4); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + /* + * WaDisableCtxRestoreArbitration:bdw,chv + * + * We don't need to perform MI_ARB_ENABLE as often as we do (in + * particular all the gen that do not need the w/a at all!), if we + * took care to make sure that on every switch into this context + * (both ordinary and for preemption) that arbitrartion was enabled + * we would be fine. However, for gen8 there is another w/a that + * requires us to not preempt inside GPGPU execution, so we keep + * arbitration disabled for gen8 batches. Arbitration will be + * re-enabled before we close the request + * (engine->emit_fini_breadcrumb). + */ + *cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE; + + /* FIXME(BDW+): Address space and security selectors. */ + *cs++ = MI_BATCH_BUFFER_START_GEN8 | + (flags & I915_DISPATCH_SECURE ? 0 : BIT(8)); + *cs++ = lower_32_bits(offset); + *cs++ = upper_32_bits(offset); + + intel_ring_advance(rq, cs); + + return 0; +} + +int gen8_emit_bb_start(struct i915_request *rq, + u64 offset, u32 len, + const unsigned int flags) +{ + u32 *cs; + + cs = intel_ring_begin(rq, 6); + if (IS_ERR(cs)) + return PTR_ERR(cs); + + *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; + + *cs++ = MI_BATCH_BUFFER_START_GEN8 | + (flags & I915_DISPATCH_SECURE ? 0 : BIT(8)); + *cs++ = lower_32_bits(offset); + *cs++ = upper_32_bits(offset); + + *cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE; + *cs++ = MI_NOOP; + + intel_ring_advance(rq, cs); + + return 0; +} + +static void assert_request_valid(struct i915_request *rq) +{ + struct intel_ring *ring __maybe_unused = rq->ring; + + /* Can we unwind this request without appearing to go forwards? */ + GEM_BUG_ON(intel_ring_direction(ring, rq->wa_tail, rq->head) <= 0); +} + +/* + * Reserve space for 2 NOOPs at the end of each request to be + * used as a workaround for not being allowed to do lite + * restore with HEAD==TAIL (WaIdleLiteRestore). + */ +static u32 *gen8_emit_wa_tail(struct i915_request *rq, u32 *cs) +{ + /* Ensure there's always at least one preemption point per-request. */ + *cs++ = MI_ARB_CHECK; + *cs++ = MI_NOOP; + rq->wa_tail = intel_ring_offset(rq, cs); + + /* Check that entire request is less than half the ring */ + assert_request_valid(rq); + + return cs; +} + +static u32 *emit_preempt_busywait(struct i915_request *rq, u32 *cs) +{ + *cs++ = MI_SEMAPHORE_WAIT | + MI_SEMAPHORE_GLOBAL_GTT | + MI_SEMAPHORE_POLL | + MI_SEMAPHORE_SAD_EQ_SDD; + *cs++ = 0; + *cs++ = preempt_address(rq->engine); + *cs++ = 0; + + return cs; +} + +static __always_inline u32* +gen8_emit_fini_breadcrumb_tail(struct i915_request *rq, u32 *cs) +{ + *cs++ = MI_USER_INTERRUPT; + + *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; + if (intel_engine_has_semaphores(rq->engine)) + cs = emit_preempt_busywait(rq, cs); + + rq->tail = intel_ring_offset(rq, cs); + assert_ring_tail_valid(rq->ring, rq->tail); + + return gen8_emit_wa_tail(rq, cs); +} + +static u32 *emit_xcs_breadcrumb(struct i915_request *rq, u32 *cs) +{ + return gen8_emit_ggtt_write(cs, rq->fence.seqno, hwsp_offset(rq), 0); +} + +u32 *gen8_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs) +{ + return gen8_emit_fini_breadcrumb_tail(rq, emit_xcs_breadcrumb(rq, cs)); +} + +u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs) +{ + cs = gen8_emit_pipe_control(cs, + PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | + PIPE_CONTROL_DEPTH_CACHE_FLUSH | + PIPE_CONTROL_DC_FLUSH_ENABLE, + 0); + + /* XXX flush+write+CS_STALL all in one upsets gem_concurrent_blt:kbl */ + cs = gen8_emit_ggtt_write_rcs(cs, + rq->fence.seqno, + hwsp_offset(rq), + PIPE_CONTROL_FLUSH_ENABLE | + PIPE_CONTROL_CS_STALL); + + return gen8_emit_fini_breadcrumb_tail(rq, cs); +} + +u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs) +{ + cs = gen8_emit_ggtt_write_rcs(cs, + rq->fence.seqno, + hwsp_offset(rq), + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_TILE_CACHE_FLUSH | + PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | + PIPE_CONTROL_DEPTH_CACHE_FLUSH | + PIPE_CONTROL_DC_FLUSH_ENABLE | + PIPE_CONTROL_FLUSH_ENABLE); + + return gen8_emit_fini_breadcrumb_tail(rq, cs); +} + +/* + * Note that the CS instruction pre-parser will not stall on the breadcrumb + * flush and will continue pre-fetching the instructions after it before the + * memory sync is completed. On pre-gen12 HW, the pre-parser will stop at + * BB_START/END instructions, so, even though we might pre-fetch the pre-amble + * of the next request before the memory has been flushed, we're guaranteed that + * we won't access the batch itself too early. + * However, on gen12+ the parser can pre-fetch across the BB_START/END commands, + * so, if the current request is modifying an instruction in the next request on + * the same intel_context, we might pre-fetch and then execute the pre-update + * instruction. To avoid this, the users of self-modifying code should either + * disable the parser around the code emitting the memory writes, via a new flag + * added to MI_ARB_CHECK, or emit the writes from a different intel_context. For + * the in-kernel use-cases we've opted to use a separate context, see + * reloc_gpu() as an example. + * All the above applies only to the instructions themselves. Non-inline data + * used by the instructions is not pre-fetched. + */ + +static u32 *gen12_emit_preempt_busywait(struct i915_request *rq, u32 *cs) +{ + *cs++ = MI_SEMAPHORE_WAIT_TOKEN | + MI_SEMAPHORE_GLOBAL_GTT | + MI_SEMAPHORE_POLL | + MI_SEMAPHORE_SAD_EQ_SDD; + *cs++ = 0; + *cs++ = preempt_address(rq->engine); + *cs++ = 0; + *cs++ = 0; + *cs++ = MI_NOOP; + + return cs; +} + +static __always_inline u32* +gen12_emit_fini_breadcrumb_tail(struct i915_request *rq, u32 *cs) +{ + *cs++ = MI_USER_INTERRUPT; + + *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; + if (intel_engine_has_semaphores(rq->engine)) + cs = gen12_emit_preempt_busywait(rq, cs); + + rq->tail = intel_ring_offset(rq, cs); + assert_ring_tail_valid(rq->ring, rq->tail); + + return gen8_emit_wa_tail(rq, cs); +} + +u32 *gen12_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs) +{ + /* XXX Stalling flush before seqno write; post-sync not */ + cs = emit_xcs_breadcrumb(rq, __gen8_emit_flush_dw(cs, 0, 0, 0)); + return gen12_emit_fini_breadcrumb_tail(rq, cs); +} + +u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs) +{ + cs = gen12_emit_ggtt_write_rcs(cs, + rq->fence.seqno, + hwsp_offset(rq), + PIPE_CONTROL0_HDC_PIPELINE_FLUSH, + PIPE_CONTROL_CS_STALL | + PIPE_CONTROL_TILE_CACHE_FLUSH | + PIPE_CONTROL_FLUSH_L3 | + PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | + PIPE_CONTROL_DEPTH_CACHE_FLUSH | + /* Wa_1409600907:tgl */ + PIPE_CONTROL_DEPTH_STALL | + PIPE_CONTROL_DC_FLUSH_ENABLE | + PIPE_CONTROL_FLUSH_ENABLE); + + return gen12_emit_fini_breadcrumb_tail(rq, cs); +} diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.h b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h new file mode 100644 index 000000000000..3c5771fea235 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2014 Intel Corporation + */ + +#ifndef __GEN8_ENGINE_CS_H__ +#define __GEN8_ENGINE_CS_H__ + +#include <linux/types.h> + +struct i915_request; + +int gen8_emit_flush_rcs(struct i915_request *rq, u32 mode); +int gen11_emit_flush_rcs(struct i915_request *rq, u32 mode); +int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode); + +int gen8_emit_flush_xcs(struct i915_request *rq, u32 mode); +int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode); + +int gen8_emit_init_breadcrumb(struct i915_request *rq); + +int gen8_emit_bb_start_noarb(struct i915_request *rq, + u64 offset, u32 len, + const unsigned int flags); +int gen8_emit_bb_start(struct i915_request *rq, + u64 offset, u32 len, + const unsigned int flags); + +u32 *gen8_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs); +u32 *gen12_emit_fini_breadcrumb_xcs(struct i915_request *rq, u32 *cs); + +u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); +u32 *gen11_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); +u32 *gen12_emit_fini_breadcrumb_rcs(struct i915_request *rq, u32 *cs); + +#endif /* __GEN8_ENGINE_CS_H__ */ diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index e1d35ab17e6f..dcecc2887891 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -112,6 +112,7 @@ #include "i915_perf.h" #include "i915_trace.h" #include "i915_vgpu.h" +#include "gen8_engine_cs.h" #include "intel_breadcrumbs.h" #include "intel_context.h" #include "intel_engine_pm.h" @@ -362,12 +363,6 @@ active_request(const struct intel_timeline * const tl, struct i915_request *rq) return active; } -static inline u32 intel_hws_preempt_address(struct intel_engine_cs *engine) -{ - return (i915_ggtt_offset(engine->status_page.vma) + - I915_GEM_HWS_PREEMPT_ADDR); -} - static inline void ring_set_paused(const struct intel_engine_cs *engine, int state) { @@ -3571,55 +3566,6 @@ static const struct intel_context_ops execlists_context_ops = { .destroy = execlists_context_destroy, }; -static u32 hwsp_offset(const struct i915_request *rq) -{ - const struct intel_timeline_cacheline *cl; - - /* Before the request is executed, the timeline/cachline is fixed */ - - cl = rcu_dereference_protected(rq->hwsp_cacheline, 1); - if (cl) - return cl->ggtt_offset; - - return rcu_dereference_protected(rq->timeline, 1)->hwsp_offset; -} - -static int gen8_emit_init_breadcrumb(struct i915_request *rq) -{ - u32 *cs; - - GEM_BUG_ON(i915_request_has_initial_breadcrumb(rq)); - if (!i915_request_timeline(rq)->has_initial_breadcrumb) - return 0; - - cs = intel_ring_begin(rq, 6); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - /* - * Check if we have been preempted before we even get started. - * - * After this point i915_request_started() reports true, even if - * we get preempted and so are no longer running. - */ - *cs++ = MI_ARB_CHECK; - *cs++ = MI_NOOP; - - *cs++ = MI_STORE_DWORD_IMM_GEN4 | MI_USE_GGTT; - *cs++ = hwsp_offset(rq); - *cs++ = 0; - *cs++ = rq->fence.seqno - 1; - - intel_ring_advance(rq, cs); - - /* Record the updated position of the request's payload */ - rq->infix = intel_ring_offset(rq, cs); - - __set_bit(I915_FENCE_FLAG_INITIAL_BREADCRUMB, &rq->fence.flags); - - return 0; -} - static int emit_pdps(struct i915_request *rq) { const struct intel_engine_cs * const engine = rq->engine; @@ -4475,67 +4421,6 @@ static void execlists_reset_finish(struct intel_engine_cs *engine) atomic_read(&execlists->tasklet.count)); } -static int gen8_emit_bb_start_noarb(struct i915_request *rq, - u64 offset, u32 len, - const unsigned int flags) -{ - u32 *cs; - - cs = intel_ring_begin(rq, 4); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - /* - * WaDisableCtxRestoreArbitration:bdw,chv - * - * We don't need to perform MI_ARB_ENABLE as often as we do (in - * particular all the gen that do not need the w/a at all!), if we - * took care to make sure that on every switch into this context - * (both ordinary and for preemption) that arbitrartion was enabled - * we would be fine. However, for gen8 there is another w/a that - * requires us to not preempt inside GPGPU execution, so we keep - * arbitration disabled for gen8 batches. Arbitration will be - * re-enabled before we close the request - * (engine->emit_fini_breadcrumb). - */ - *cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE; - - /* FIXME(BDW+): Address space and security selectors. */ - *cs++ = MI_BATCH_BUFFER_START_GEN8 | - (flags & I915_DISPATCH_SECURE ? 0 : BIT(8)); - *cs++ = lower_32_bits(offset); - *cs++ = upper_32_bits(offset); - - intel_ring_advance(rq, cs); - - return 0; -} - -static int gen8_emit_bb_start(struct i915_request *rq, - u64 offset, u32 len, - const unsigned int flags) -{ - u32 *cs; - - cs = intel_ring_begin(rq, 6); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; - - *cs++ = MI_BATCH_BUFFER_START_GEN8 | - (flags & I915_DISPATCH_SECURE ? 0 : BIT(8)); - *cs++ = lower_32_bits(offset); - *cs++ = upper_32_bits(offset); - - *cs++ = MI_ARB_ON_OFF | MI_ARB_DISABLE; - *cs++ = MI_NOOP; - - intel_ring_advance(rq, cs); - - return 0; -} - static void gen8_logical_ring_enable_irq(struct intel_engine_cs *engine) { ENGINE_WRITE(engine, RING_IMR, @@ -4548,504 +4433,6 @@ static void gen8_logical_ring_disable_irq(struct intel_engine_cs *engine) ENGINE_WRITE(engine, RING_IMR, ~engine->irq_keep_mask); } -static int gen8_emit_flush(struct i915_request *request, u32 mode) -{ - u32 cmd, *cs; - - cs = intel_ring_begin(request, 4); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - cmd = MI_FLUSH_DW + 1; - - /* We always require a command barrier so that subsequent - * commands, such as breadcrumb interrupts, are strictly ordered - * wrt the contents of the write cache being flushed to memory - * (and thus being coherent from the CPU). - */ - cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; - - if (mode & EMIT_INVALIDATE) { - cmd |= MI_INVALIDATE_TLB; - if (request->engine->class == VIDEO_DECODE_CLASS) - cmd |= MI_INVALIDATE_BSD; - } - - *cs++ = cmd; - *cs++ = LRC_PPHWSP_SCRATCH_ADDR; - *cs++ = 0; /* upper addr */ - *cs++ = 0; /* value */ - intel_ring_advance(request, cs); - - return 0; -} - -static int gen8_emit_flush_render(struct i915_request *request, - u32 mode) -{ - bool vf_flush_wa = false, dc_flush_wa = false; - u32 *cs, flags = 0; - int len; - - flags |= PIPE_CONTROL_CS_STALL; - - if (mode & EMIT_FLUSH) { - flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; - flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; - flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; - flags |= PIPE_CONTROL_FLUSH_ENABLE; - } - - if (mode & EMIT_INVALIDATE) { - flags |= PIPE_CONTROL_TLB_INVALIDATE; - flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_QW_WRITE; - flags |= PIPE_CONTROL_STORE_DATA_INDEX; - - /* - * On GEN9: before VF_CACHE_INVALIDATE we need to emit a NULL - * pipe control. - */ - if (IS_GEN(request->engine->i915, 9)) - vf_flush_wa = true; - - /* WaForGAMHang:kbl */ - if (IS_KBL_GT_REVID(request->engine->i915, 0, KBL_REVID_B0)) - dc_flush_wa = true; - } - - len = 6; - - if (vf_flush_wa) - len += 6; - - if (dc_flush_wa) - len += 12; - - cs = intel_ring_begin(request, len); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - if (vf_flush_wa) - cs = gen8_emit_pipe_control(cs, 0, 0); - - if (dc_flush_wa) - cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_DC_FLUSH_ENABLE, - 0); - - cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); - - if (dc_flush_wa) - cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_CS_STALL, 0); - - intel_ring_advance(request, cs); - - return 0; -} - -static int gen11_emit_flush_render(struct i915_request *request, - u32 mode) -{ - if (mode & EMIT_FLUSH) { - u32 *cs; - u32 flags = 0; - - flags |= PIPE_CONTROL_CS_STALL; - - flags |= PIPE_CONTROL_TILE_CACHE_FLUSH; - flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; - flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; - flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; - flags |= PIPE_CONTROL_FLUSH_ENABLE; - flags |= PIPE_CONTROL_QW_WRITE; - flags |= PIPE_CONTROL_STORE_DATA_INDEX; - - cs = intel_ring_begin(request, 6); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); - intel_ring_advance(request, cs); - } - - if (mode & EMIT_INVALIDATE) { - u32 *cs; - u32 flags = 0; - - flags |= PIPE_CONTROL_CS_STALL; - - flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_TLB_INVALIDATE; - flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_QW_WRITE; - flags |= PIPE_CONTROL_STORE_DATA_INDEX; - - cs = intel_ring_begin(request, 6); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); - intel_ring_advance(request, cs); - } - - return 0; -} - -static u32 preparser_disable(bool state) -{ - return MI_ARB_CHECK | 1 << 8 | state; -} - -static i915_reg_t aux_inv_reg(const struct intel_engine_cs *engine) -{ - static const i915_reg_t vd[] = { - GEN12_VD0_AUX_NV, - GEN12_VD1_AUX_NV, - GEN12_VD2_AUX_NV, - GEN12_VD3_AUX_NV, - }; - - static const i915_reg_t ve[] = { - GEN12_VE0_AUX_NV, - GEN12_VE1_AUX_NV, - }; - - if (engine->class == VIDEO_DECODE_CLASS) - return vd[engine->instance]; - - if (engine->class == VIDEO_ENHANCEMENT_CLASS) - return ve[engine->instance]; - - GEM_BUG_ON("unknown aux_inv_reg\n"); - - return INVALID_MMIO_REG; -} - -static u32 * -gen12_emit_aux_table_inv(const i915_reg_t inv_reg, u32 *cs) -{ - *cs++ = MI_LOAD_REGISTER_IMM(1); - *cs++ = i915_mmio_reg_offset(inv_reg); - *cs++ = AUX_INV; - *cs++ = MI_NOOP; - - return cs; -} - -static int gen12_emit_flush_render(struct i915_request *request, - u32 mode) -{ - if (mode & EMIT_FLUSH) { - u32 flags = 0; - u32 *cs; - - flags |= PIPE_CONTROL_TILE_CACHE_FLUSH; - flags |= PIPE_CONTROL_FLUSH_L3; - flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH; - flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH; - /* Wa_1409600907:tgl */ - flags |= PIPE_CONTROL_DEPTH_STALL; - flags |= PIPE_CONTROL_DC_FLUSH_ENABLE; - flags |= PIPE_CONTROL_FLUSH_ENABLE; - - flags |= PIPE_CONTROL_STORE_DATA_INDEX; - flags |= PIPE_CONTROL_QW_WRITE; - - flags |= PIPE_CONTROL_CS_STALL; - - cs = intel_ring_begin(request, 6); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - cs = gen12_emit_pipe_control(cs, - PIPE_CONTROL0_HDC_PIPELINE_FLUSH, - flags, LRC_PPHWSP_SCRATCH_ADDR); - intel_ring_advance(request, cs); - } - - if (mode & EMIT_INVALIDATE) { - u32 flags = 0; - u32 *cs; - - flags |= PIPE_CONTROL_COMMAND_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_TLB_INVALIDATE; - flags |= PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_VF_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_CONST_CACHE_INVALIDATE; - flags |= PIPE_CONTROL_STATE_CACHE_INVALIDATE; - - flags |= PIPE_CONTROL_STORE_DATA_INDEX; - flags |= PIPE_CONTROL_QW_WRITE; - - flags |= PIPE_CONTROL_CS_STALL; - - cs = intel_ring_begin(request, 8 + 4); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - /* - * Prevent the pre-parser from skipping past the TLB - * invalidate and loading a stale page for the batch - * buffer / request payload. - */ - *cs++ = preparser_disable(true); - - cs = gen8_emit_pipe_control(cs, flags, LRC_PPHWSP_SCRATCH_ADDR); - - /* hsdes: 1809175790 */ - cs = gen12_emit_aux_table_inv(GEN12_GFX_CCS_AUX_NV, cs); - - *cs++ = preparser_disable(false); - intel_ring_advance(request, cs); - } - - return 0; -} - -static int gen12_emit_flush(struct i915_request *request, u32 mode) -{ - intel_engine_mask_t aux_inv = 0; - u32 cmd, *cs; - - cmd = 4; - if (mode & EMIT_INVALIDATE) - cmd += 2; - if (mode & EMIT_INVALIDATE) - aux_inv = request->engine->mask & ~BIT(BCS0); - if (aux_inv) - cmd += 2 * hweight8(aux_inv) + 2; - - cs = intel_ring_begin(request, cmd); - if (IS_ERR(cs)) - return PTR_ERR(cs); - - if (mode & EMIT_INVALIDATE) - *cs++ = preparser_disable(true); - - cmd = MI_FLUSH_DW + 1; - - /* We always require a command barrier so that subsequent - * commands, such as breadcrumb interrupts, are strictly ordered - * wrt the contents of the write cache being flushed to memory - * (and thus being coherent from the CPU). - */ - cmd |= MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; - - if (mode & EMIT_INVALIDATE) { - cmd |= MI_INVALIDATE_TLB; - if (request->engine->class == VIDEO_DECODE_CLASS) - cmd |= MI_INVALIDATE_BSD; - } - - *cs++ = cmd; - *cs++ = LRC_PPHWSP_SCRATCH_ADDR; - *cs++ = 0; /* upper addr */ - *cs++ = 0; /* value */ - - if (aux_inv) { /* hsdes: 1809175790 */ - struct intel_engine_cs *engine; - unsigned int tmp; - - *cs++ = MI_LOAD_REGISTER_IMM(hweight8(aux_inv)); - for_each_engine_masked(engine, request->engine->gt, - aux_inv, tmp) { - *cs++ = i915_mmio_reg_offset(aux_inv_reg(engine)); - *cs++ = AUX_INV; - } - *cs++ = MI_NOOP; - } - - if (mode & EMIT_INVALIDATE) - *cs++ = preparser_disable(false); - - intel_ring_advance(request, cs); - - return 0; -} - -static void assert_request_valid(struct i915_request *rq) -{ - struct intel_ring *ring __maybe_unused = rq->ring; - - /* Can we unwind this request without appearing to go forwards? */ - GEM_BUG_ON(intel_ring_direction(ring, rq->wa_tail, rq->head) <= 0); -} - -/* - * Reserve space for 2 NOOPs at the end of each request to be - * used as a workaround for not being allowed to do lite - * restore with HEAD==TAIL (WaIdleLiteRestore). - */ -static u32 *gen8_emit_wa_tail(struct i915_request *request, u32 *cs) -{ - /* Ensure there's always at least one preemption point per-request. */ - *cs++ = MI_ARB_CHECK; - *cs++ = MI_NOOP; - request->wa_tail = intel_ring_offset(request, cs); - - /* Check that entire request is less than half the ring */ - assert_request_valid(request); - - return cs; -} - -static u32 *emit_preempt_busywait(struct i915_request *request, u32 *cs) -{ - *cs++ = MI_SEMAPHORE_WAIT | - MI_SEMAPHORE_GLOBAL_GTT | - MI_SEMAPHORE_POLL | - MI_SEMAPHORE_SAD_EQ_SDD; - *cs++ = 0; - *cs++ = intel_hws_preempt_address(request->engine); - *cs++ = 0; - - return cs; -} - -static __always_inline u32* -gen8_emit_fini_breadcrumb_tail(struct i915_request *request, u32 *cs) -{ - *cs++ = MI_USER_INTERRUPT; - - *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; - if (intel_engine_has_semaphores(request->engine)) - cs = emit_preempt_busywait(request, cs); - - request->tail = intel_ring_offset(request, cs); - assert_ring_tail_valid(request->ring, request->tail); - - return gen8_emit_wa_tail(request, cs); -} - -static u32 *emit_xcs_breadcrumb(struct i915_request *rq, u32 *cs) -{ - return gen8_emit_ggtt_write(cs, rq->fence.seqno, hwsp_offset(rq), 0); -} - -static u32 *gen8_emit_fini_breadcrumb(struct i915_request *rq, u32 *cs) -{ - return gen8_emit_fini_breadcrumb_tail(rq, emit_xcs_breadcrumb(rq, cs)); -} - -static u32 *gen8_emit_fini_breadcrumb_rcs(struct i915_request *request, u32 *cs) -{ - cs = gen8_emit_pipe_control(cs, - PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | - PIPE_CONTROL_DEPTH_CACHE_FLUSH | - PIPE_CONTROL_DC_FLUSH_ENABLE, - 0); - - /* XXX flush+write+CS_STALL all in one upsets gem_concurrent_blt:kbl */ - cs = gen8_emit_ggtt_write_rcs(cs, - request->fence.seqno, - hwsp_offset(request), - PIPE_CONTROL_FLUSH_ENABLE | - PIPE_CONTROL_CS_STALL); - - return gen8_emit_fini_breadcrumb_tail(request, cs); -} - -static u32 * -gen11_emit_fini_breadcrumb_rcs(struct i915_request *request, u32 *cs) -{ - cs = gen8_emit_ggtt_write_rcs(cs, - request->fence.seqno, - hwsp_offset(request), - PIPE_CONTROL_CS_STALL | - PIPE_CONTROL_TILE_CACHE_FLUSH | - PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | - PIPE_CONTROL_DEPTH_CACHE_FLUSH | - PIPE_CONTROL_DC_FLUSH_ENABLE | - PIPE_CONTROL_FLUSH_ENABLE); - - return gen8_emit_fini_breadcrumb_tail(request, cs); -} - -/* - * Note that the CS instruction pre-parser will not stall on the breadcrumb - * flush and will continue pre-fetching the instructions after it before the - * memory sync is completed. On pre-gen12 HW, the pre-parser will stop at - * BB_START/END instructions, so, even though we might pre-fetch the pre-amble - * of the next request before the memory has been flushed, we're guaranteed that - * we won't access the batch itself too early. - * However, on gen12+ the parser can pre-fetch across the BB_START/END commands, - * so, if the current request is modifying an instruction in the next request on - * the same intel_context, we might pre-fetch and then execute the pre-update - * instruction. To avoid this, the users of self-modifying code should either - * disable the parser around the code emitting the memory writes, via a new flag - * added to MI_ARB_CHECK, or emit the writes from a different intel_context. For - * the in-kernel use-cases we've opted to use a separate context, see - * reloc_gpu() as an example. - * All the above applies only to the instructions themselves. Non-inline data - * used by the instructions is not pre-fetched. - */ - -static u32 *gen12_emit_preempt_busywait(struct i915_request *request, u32 *cs) -{ - *cs++ = MI_SEMAPHORE_WAIT_TOKEN | - MI_SEMAPHORE_GLOBAL_GTT | - MI_SEMAPHORE_POLL | - MI_SEMAPHORE_SAD_EQ_SDD; - *cs++ = 0; - *cs++ = intel_hws_preempt_address(request->engine); - *cs++ = 0; - *cs++ = 0; - *cs++ = MI_NOOP; - - return cs; -} - -static __always_inline u32* -gen12_emit_fini_breadcrumb_tail(struct i915_request *request, u32 *cs) -{ - *cs++ = MI_USER_INTERRUPT; - - *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE; - if (intel_engine_has_semaphores(request->engine)) - cs = gen12_emit_preempt_busywait(request, cs); - - request->tail = intel_ring_offset(request, cs); - assert_ring_tail_valid(request->ring, request->tail); - - return gen8_emit_wa_tail(request, cs); -} - -static u32 *gen12_emit_fini_breadcrumb(struct i915_request *rq, u32 *cs) -{ - /* XXX Stalling flush before seqno write; post-sync not */ - cs = emit_xcs_breadcrumb(rq, __gen8_emit_flush_dw(cs, 0, 0, 0)); - return gen12_emit_fini_breadcrumb_tail(rq, cs); -} - -static u32 * -gen12_emit_fini_breadcrumb_rcs(struct i915_request *request, u32 *cs) -{ - cs = gen12_emit_ggtt_write_rcs(cs, - request->fence.seqno, - hwsp_offset(request), - PIPE_CONTROL0_HDC_PIPELINE_FLUSH, - PIPE_CONTROL_CS_STALL | - PIPE_CONTROL_TILE_CACHE_FLUSH | - PIPE_CONTROL_FLUSH_L3 | - PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH | - PIPE_CONTROL_DEPTH_CACHE_FLUSH | - /* Wa_1409600907:tgl */ - PIPE_CONTROL_DEPTH_STALL | - PIPE_CONTROL_DC_FLUSH_ENABLE | - PIPE_CONTROL_FLUSH_ENABLE); - - return gen12_emit_fini_breadcrumb_tail(request, cs); -} - static void execlists_park(struct intel_engine_cs *engine) { cancel_timer(&engine->execlists.timer); @@ -5113,12 +4500,12 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine) engine->cops = &execlists_context_ops; engine->request_alloc = execlists_request_alloc; - engine->emit_flush = gen8_emit_flush; + engine->emit_flush = gen8_emit_flush_xcs; engine->emit_init_breadcrumb = gen8_emit_init_breadcrumb; - engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb; + engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_xcs; if (INTEL_GEN(engine->i915) >= 12) { - engine->emit_fini_breadcrumb = gen12_emit_fini_breadcrumb; - engine->emit_flush = gen12_emit_flush; + engine->emit_fini_breadcrumb = gen12_emit_fini_breadcrumb_xcs; + engine->emit_flush = gen12_emit_flush_xcs; } engine->set_default_submission = intel_execlists_set_default_submission; @@ -5162,15 +4549,15 @@ static void rcs_submission_override(struct intel_engine_cs *engine) { switch (INTEL_GEN(engine->i915)) { case 12: - engine->emit_flush = gen12_emit_flush_render; + engine->emit_flush = gen12_emit_flush_rcs; engine->emit_fini_breadcrumb = gen12_emit_fini_breadcrumb_rcs; break; case 11: - engine->emit_flush = gen11_emit_flush_render; + engine->emit_flush = gen11_emit_flush_rcs; engine->emit_fini_breadcrumb = gen11_emit_fini_breadcrumb_rcs; break; default: - engine->emit_flush = gen8_emit_flush_render; + engine->emit_flush = gen8_emit_flush_rcs; engine->emit_fini_breadcrumb = gen8_emit_fini_breadcrumb_rcs; break; } |