This patch add the workaround to disable Sampler-OOO to avoid hang during a benchmark.
Original Author: Madhumitha Tolakanhalli Pradeep Signed-off-by: Radhakrishna Sripada <[email protected]> --- drivers/gpu/drm/i915/gt/intel_gt_regs.h | 1 + drivers/gpu/drm/i915/gt/intel_workarounds.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 4a4bab261e66..27b06ff380a9 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1145,6 +1145,7 @@ #define ENABLE_SMALLPL REG_BIT(15) #define SC_DISABLE_POWER_OPTIMIZATION_EBB REG_BIT(9) #define GEN11_SAMPLER_ENABLE_HEADLESS_MSG REG_BIT(5) +#define MTL_DISABLE_SAMPLER_SC_OOO REG_BIT(3) #define GEN9_HALF_SLICE_CHICKEN7 MCR_REG(0xe194) #define DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA REG_BIT(15) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 918a271447e2..c52c5f9ad9ce 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -2332,6 +2332,13 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) /* Wa_22014600077 */ wa_mcr_masked_en(wal, GEN10_CACHE_MODE_SS, ENABLE_EU_COUNT_FOR_TDL_FLUSH); + + /* + * Wa_14017066071: mtl-p/m[a0] + * Wa_14017654203: mtl-p/m[a0] + */ + wa_mcr_masked_en(wal, GEN10_SAMPLER_MODE, + MTL_DISABLE_SAMPLER_SC_OOO); } if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) || -- 2.34.1
