From 380f0423180768f4a2f368c3ee3d417e255de176 Mon Sep 17 00:00:00 2001 From: Daniele Ceraolo Spurio Date: Sat, 1 Feb 2020 19:40:04 +0000 Subject: [PATCH] drm/i915: Move ringbuffer WAs to engine workaround list Now that intel_engine_apply_workarounds is called on all gens, we can use the engine workaround lists for pre-gen8 workarounds as well to be consistent in the way we handle and dump the WAs. v2: Ignore the sanity check of MI_MODE on Broadwater, for whatever reason it is not sticking. Signed-off-by: Daniele Ceraolo Spurio Cc: Chris Wilson Cc: Tvrtko Ursulin Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20200201194004.3622493-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/gt/intel_ring_submission.c | 37 ------------------ drivers/gpu/drm/i915/gt/intel_workarounds.c | 50 ++++++++++++++++++++++++- 2 files changed, 48 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c index 9aa86ba15ce7..9537d4912225 100644 --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c @@ -858,43 +858,6 @@ static int rcs_resume(struct intel_engine_cs *engine) intel_uncore_write(uncore, ECOSKPD, _MASKED_BIT_ENABLE(ECO_CONSTANT_BUFFER_SR_DISABLE)); - /* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */ - if (IS_GEN_RANGE(i915, 4, 6)) - intel_uncore_write(uncore, MI_MODE, - _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH)); - - /* We need to disable the AsyncFlip performance optimisations in order - * to use MI_WAIT_FOR_EVENT within the CS. It should already be - * programmed to '1' on all products. - * - * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv - */ - if (IS_GEN_RANGE(i915, 6, 7)) - intel_uncore_write(uncore, MI_MODE, - _MASKED_BIT_ENABLE(ASYNC_FLIP_PERF_DISABLE)); - - /* Required for the hardware to program scanline values for waiting */ - /* WaEnableFlushTlbInvalidationMode:snb */ - if (IS_GEN(i915, 6)) - intel_uncore_write(uncore, GFX_MODE, - _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT)); - - /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */ - if (IS_GEN(i915, 7)) - intel_uncore_write(uncore, GFX_MODE_GEN7, - _MASKED_BIT_ENABLE(GFX_TLB_INVALIDATE_EXPLICIT) | - _MASKED_BIT_ENABLE(GFX_REPLAY_MODE)); - - if (IS_GEN(i915, 6)) { - /* From the Sandybridge PRM, volume 1 part 3, page 24: - * "If this bit is set, STCunit will have LRA as replacement - * policy. [...] This bit must be reset. LRA replacement - * policy is not supported." - */ - intel_uncore_write(uncore, CACHE_MODE_0, - _MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB)); - } - if (IS_GEN_RANGE(i915, 6, 7)) intel_uncore_write(uncore, INSTPM, _MASKED_BIT_ENABLE(INSTPM_FORCE_ORDERING)); diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 857337f323ee..61106129287f 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1464,6 +1464,52 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) GEN8_L3SQCREG4, GEN8_LQSC_FLUSH_COHERENT_LINES); } + + if (IS_GEN(i915, 7)) + /* WaBCSVCSTlbInvalidationMode:ivb,vlv,hsw */ + wa_masked_en(wal, + GFX_MODE_GEN7, + GFX_TLB_INVALIDATE_EXPLICIT | GFX_REPLAY_MODE); + + if (IS_GEN_RANGE(i915, 6, 7)) + /* + * We need to disable the AsyncFlip performance optimisations in + * order to use MI_WAIT_FOR_EVENT within the CS. It should + * already be programmed to '1' on all products. + * + * WaDisableAsyncFlipPerfMode:snb,ivb,hsw,vlv + */ + wa_masked_en(wal, + MI_MODE, + ASYNC_FLIP_PERF_DISABLE); + + if (IS_GEN(i915, 6)) { + /* + * Required for the hardware to program scanline values for + * waiting + * WaEnableFlushTlbInvalidationMode:snb + */ + wa_masked_en(wal, + GFX_MODE, + GFX_TLB_INVALIDATE_EXPLICIT); + + /* + * From the Sandybridge PRM, volume 1 part 3, page 24: + * "If this bit is set, STCunit will have LRA as replacement + * policy. [...] This bit must be reset. LRA replacement + * policy is not supported." + */ + wa_masked_dis(wal, + CACHE_MODE_0, + CM0_STC_EVICT_DISABLE_LRA_SNB); + } + + if (IS_GEN_RANGE(i915, 4, 6)) + /* WaTimedSingleVertexDispatch:cl,bw,ctg,elk,ilk,snb */ + wa_add(wal, MI_MODE, + 0, _MASKED_BIT_ENABLE(VS_TIMER_DISPATCH), + /* XXX bit doesn't stick on Broadwater */ + IS_I965G(i915) ? 0 : VS_TIMER_DISPATCH); } static void @@ -1482,7 +1528,7 @@ xcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) static void engine_init_workarounds(struct intel_engine_cs *engine, struct i915_wa_list *wal) { - if (I915_SELFTEST_ONLY(INTEL_GEN(engine->i915) < 8)) + if (I915_SELFTEST_ONLY(INTEL_GEN(engine->i915) < 4)) return; if (engine->class == RENDER_CLASS) @@ -1495,7 +1541,7 @@ void intel_engine_init_workarounds(struct intel_engine_cs *engine) { struct i915_wa_list *wal = &engine->wa_list; - if (INTEL_GEN(engine->i915) < 8) + if (INTEL_GEN(engine->i915) < 4) return; wa_init_start(wal, "engine", engine->name); -- 2.11.0