From: Damien Lespiau Date: Tue, 10 Feb 2015 10:31:00 +0000 (+0000) Subject: drm/i915/bdw: Implement WaForceContextSaveRestoreNonCoherent X-Git-Tag: v4.1-rc1~69^2~35^2~50 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=35cb6f3b4ee352bff28d2541909e30f193788b52;p=karo-tx-linux.git drm/i915/bdw: Implement WaForceContextSaveRestoreNonCoherent v2: Reorder defines (Ben) v3: More bikesheds, this time re-ordering comments! (Chris) Reviewed-by: Ben Widawsky Reviewed-by: Ville Syrjälä Signed-off-by: Damien Lespiau [danvet: Resolve conflict.] Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 4ee1964d2c7b..f13e4e4f29e2 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5260,9 +5260,10 @@ enum skl_disp_power_wells { /* GEN8 chicken */ #define HDC_CHICKEN0 0x7300 -#define HDC_FORCE_NON_COHERENT (1<<4) -#define HDC_DONOT_FETCH_MEM_WHEN_MASKED (1<<11) #define HDC_FENCE_DEST_SLM_DISABLE (1<<14) +#define HDC_DONOT_FETCH_MEM_WHEN_MASKED (1<<11) +#define HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT (1<<5) +#define HDC_FORCE_NON_COHERENT (1<<4) /* WaCatErrorRejectionIssue */ #define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index fb71e33ac4d7..d62681748b87 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -788,12 +788,14 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring) * workaround for for a possible hang in the unlikely event a TLB * invalidation occurs during a PSD flush. */ - /* WaForceEnableNonCoherent:bdw */ - /* WaHdcDisableFetchWhenMasked:bdw */ - /* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */ WA_SET_BIT_MASKED(HDC_CHICKEN0, + /* WaForceEnableNonCoherent:bdw */ HDC_FORCE_NON_COHERENT | + /* WaForceContextSaveRestoreNonCoherent:bdw */ + HDC_FORCE_CONTEXT_SAVE_RESTORE_NON_COHERENT | + /* WaHdcDisableFetchWhenMasked:bdw */ HDC_DONOT_FETCH_MEM_WHEN_MASKED | + /* WaDisableFenceDestinationToSLM:bdw (pre-prod) */ (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0)); /* From the Haswell PRM, Command Reference: Registers, CACHE_MODE_0: