Quoting Radhakrishna Sripada (2019-11-13 19:18:39)
> Extend disabling SAMPLER_STATE prefetch workaround to gen12.
>
> BSpec: 52890
> Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.srip...@intel.com>
> ---
> drivers/gpu/drm/i915/gt/intel_workarounds.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index e4bccc14602f..6818d6b3cc90 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -1370,11 +1370,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine,
> struct i915_wa_list *wal)
> GEN7_SARCHKMD,
> GEN7_DISABLE_DEMAND_PREFETCH);
>
> - /* Wa_1606682166:icl */
> - wa_write_or(wal,
> - GEN7_SARCHKMD,
> - GEN7_DISABLE_SAMPLER_PREFETCH);
> -
> /* Wa_1409178092:icl */
> wa_write_masked_or(wal,
> GEN11_SCRATCH2,
> @@ -1382,6 +1377,13 @@ rcs_engine_wa_init(struct intel_engine_cs *engine,
> struct i915_wa_list *wal)
> 0);
> }
>
> + if (IS_GEN_RANGE(i915, 11, 12)) {
> + /* Wa_1606682166:icl,tgl */
Wa_1606679103:tgl
as they insist on giving it a new id.
But this is explicitly A0 only, so IS_TGL_REVID(A0, A0).
-Chris
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