[Intel-gfx] [PATCH v4 2/2] drm/i915/dg2: Introduce Wa_18019271663
Gustavo Sousa
gustavo.sousa at intel.com
Wed Nov 23 19:47:05 UTC 2022
On Wed, Nov 23, 2022 at 10:36:48AM -0800, Matt Atwood wrote:
> Wa_18019271663 applies to all DG2 steppings and skus.
>
> Bspec: 66622
>
> Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa at intel.com>
> ---
> drivers/gpu/drm/i915/gt/intel_gt_regs.h | 7 ++++---
> drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++
> 2 files changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> index 74379d3c5a4d..784152548472 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> @@ -429,9 +429,10 @@
> #define RC_OP_FLUSH_ENABLE (1 << 0)
> #define HIZ_RAW_STALL_OPT_DISABLE (1 << 2)
> #define CACHE_MODE_1 _MMIO(0x7004) /* IVB+ */
> -#define PIXEL_SUBSPAN_COLLECT_OPT_DISABLE (1 << 6)
> -#define GEN8_4x4_STC_OPTIMIZATION_DISABLE (1 << 6)
> -#define GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE (1 << 1)
> +#define MSAA_OPTIMIZATION_REDUC_DISABLE REG_BIT(11)
> +#define PIXEL_SUBSPAN_COLLECT_OPT_DISABLE REG_BIT(6)
> +#define GEN8_4x4_STC_OPTIMIZATION_DISABLE REG_BIT(6)
> +#define GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE REG_BIT(1)
>
> #define GEN7_GT_MODE _MMIO(0x7008)
> #define GEN9_IZ_HASHING_MASK(slice) (0x3 << ((slice) * 2))
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 870db5a202dd..1b0e40e68a9d 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -781,6 +781,9 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine,
>
> /* Wa_15010599737:dg2 */
> wa_masked_en(wal, CHICKEN_RASTER_1, DIS_SF_ROUND_NEAREST_EVEN);
> +
> + /* Wa_18019271663:dg2 */
> + wa_masked_en(wal, CACHE_MODE_1, MSAA_OPTIMIZATION_REDUC_DISABLE);
> }
>
> static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine,
> --
> 2.38.1
>
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