diff options
author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2019-01-25 02:29:33 +0000 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-25 10:18:04 +0000 |
commit | 8e525cb4a622148fbe30134ee3a1a34ad839a43a (patch) | |
tree | ae8fb44fe7d0caadd044be606978e9e8961c85e5 /drivers/gpu/drm/i915/intel_lrc.c | |
parent | b3c316b0b869252481acc8d88138aae7619de582 (diff) | |
download | linux-8e525cb4a622148fbe30134ee3a1a34ad839a43a.tar.bz2 |
drm/i915/execlists: Move RPCS setup to context pin
Configuring RPCS in context image just before pin is sufficient and will
come extra handy in one of the following patches.
v2:
* Split image setup a bit differently. (Chris Wilson)
v3:
* Update context image after reset as well - otherwise the application
of pinned default state clears the RPCS.
v4:
* Use local variable throughout the function. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190125023005.1007-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 8aa8a4862543..9155cc675924 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1173,6 +1173,24 @@ static int __context_pin(struct i915_gem_context *ctx, struct i915_vma *vma) return i915_vma_pin(vma, 0, 0, flags); } +static u32 make_rpcs(struct drm_i915_private *dev_priv); + +static void +__execlists_update_reg_state(struct intel_engine_cs *engine, + struct intel_context *ce) +{ + u32 *regs = ce->lrc_reg_state; + struct intel_ring *ring = ce->ring; + + regs[CTX_RING_BUFFER_START + 1] = i915_ggtt_offset(ring->vma); + regs[CTX_RING_HEAD + 1] = ring->head; + regs[CTX_RING_TAIL + 1] = ring->tail; + + /* RPCS */ + if (engine->class == RENDER_CLASS) + regs[CTX_R_PWR_CLK_STATE + 1] = make_rpcs(engine->i915); +} + static struct intel_context * __execlists_context_pin(struct intel_engine_cs *engine, struct i915_gem_context *ctx, @@ -1211,10 +1229,8 @@ __execlists_context_pin(struct intel_engine_cs *engine, GEM_BUG_ON(!intel_ring_offset_valid(ce->ring, ce->ring->head)); ce->lrc_reg_state = vaddr + LRC_STATE_PN * PAGE_SIZE; - ce->lrc_reg_state[CTX_RING_BUFFER_START+1] = - i915_ggtt_offset(ce->ring->vma); - ce->lrc_reg_state[CTX_RING_HEAD + 1] = ce->ring->head; - ce->lrc_reg_state[CTX_RING_TAIL + 1] = ce->ring->tail; + + __execlists_update_reg_state(engine, ce); ce->state->obj->pin_global++; i915_gem_context_get(ctx); @@ -1838,14 +1854,14 @@ static void execlists_reset(struct intel_engine_cs *engine, engine->pinned_default_state + LRC_STATE_PN * PAGE_SIZE, engine->context_size - PAGE_SIZE); } - execlists_init_reg_state(regs, - request->gem_context, engine, request->ring); /* Move the RING_HEAD onto the breadcrumb, past the hanging batch */ - regs[CTX_RING_BUFFER_START + 1] = i915_ggtt_offset(request->ring->vma); - request->ring->head = intel_ring_wrap(request->ring, request->postfix); - regs[CTX_RING_HEAD + 1] = request->ring->head; + + execlists_init_reg_state(regs, request->gem_context, engine, + request->ring); + + __execlists_update_reg_state(engine, request->hw_context); intel_ring_update_space(request->ring); @@ -2534,8 +2550,7 @@ static void execlists_init_reg_state(u32 *regs, if (rcs) { regs[CTX_LRI_HEADER_2] = MI_LOAD_REGISTER_IMM(1); - CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE, - make_rpcs(dev_priv)); + CTX_REG(regs, CTX_R_PWR_CLK_STATE, GEN8_R_PWR_CLK_STATE, 0); i915_oa_init_reg_state(engine, ctx, regs); } @@ -2696,12 +2711,8 @@ void intel_lr_context_resume(struct drm_i915_private *i915) intel_ring_reset(ce->ring, 0); - if (ce->pin_count) { /* otherwise done in context_pin */ - u32 *regs = ce->lrc_reg_state; - - regs[CTX_RING_HEAD + 1] = ce->ring->head; - regs[CTX_RING_TAIL + 1] = ce->ring->tail; - } + if (ce->pin_count) /* otherwise done in context_pin */ + __execlists_update_reg_state(engine, ce); } } } |