From: Arun Siluvery Date: Tue, 14 Jul 2015 14:01:30 +0000 (+0100) Subject: drm/i915/gen9: Add WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9b01435d2802148fcf6e061df0e4926768eeb133;p=linux-beck.git drm/i915/gen9: Add WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken In Indirect context w/a batch buffer, +WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken v2: SKL revision id was used for BXT, copy paste error found during internal review (Bob Beckett). v3: explain why part of the WA is in Per ctx batch (Mika) Cc: Mika Kuoppala Cc: Imre Deak Signed-off-by: Arun Siluvery Reviewed-by: Mika Kuoppala Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index b7e16293b9a9..83ed0f7fcbe2 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1292,6 +1292,16 @@ static int gen9_init_perctx_bb(struct intel_engine_cs *ring, struct drm_device *dev = ring->dev; uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS); + /* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */ + if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) <= SKL_REVID_B0)) || + (IS_BROXTON(dev) && (INTEL_REVID(dev) == BXT_REVID_A0))) { + wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(1)); + wa_ctx_emit(batch, index, GEN9_SLICE_COMMON_ECO_CHICKEN0); + wa_ctx_emit(batch, index, + _MASKED_BIT_ENABLE(DISABLE_PIXEL_MASK_CAMMING)); + wa_ctx_emit(batch, index, MI_NOOP); + } + /* WaDisableCtxRestoreArbitration:skl,bxt */ if ((IS_SKYLAKE(dev) && (INTEL_REVID(dev) <= SKL_REVID_D0)) || (IS_BROXTON(dev) && (INTEL_REVID(dev) == BXT_REVID_A0))) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index bddc9032e17e..1c14233d179f 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -946,8 +946,11 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring) /* WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken:skl,bxt */ WA_SET_BIT_MASKED(GEN7_COMMON_SLICE_CHICKEN1, GEN9_RHWO_OPTIMIZATION_DISABLE); - WA_SET_BIT_MASKED(GEN9_SLICE_COMMON_ECO_CHICKEN0, - DISABLE_PIXEL_MASK_CAMMING); + /* + * WA also requires GEN9_SLICE_COMMON_ECO_CHICKEN0[14:14] to be set + * but we do that in per ctx batchbuffer as there is an issue + * with this register not getting restored on ctx restore + */ } if ((IS_SKYLAKE(dev) && INTEL_REVID(dev) >= SKL_REVID_C0) ||