From: Michel Thierry <[email protected]> Enable Small PL for power benefit.
Signed-off-by: Michel Thierry <[email protected]> Signed-off-by: Lucas De Marchi <[email protected]> Reviewed-by: Stuart Summers <[email protected]> Reviewed-by: Radhakrishna Sripada <[email protected]> Reviewed-by: Lucas De Marchi <[email protected]> --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 7 +++++++ drivers/gpu/drm/i915/i915_reg.h | 3 +++ 2 files changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 126ab3667919..b58e1e6e610f 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1260,6 +1260,13 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) { struct drm_i915_private *i915 = engine->i915; + if (IS_GEN(i915, 12)) { + /* Wa_1406941453:tgl */ + wa_masked_en(wal, + SAMPLER_MODE, + SAMPLER_ENABLE_SMALL_PL); + } + if (IS_GEN(i915, 11)) { /* This is not an Wa. Enable for better image quality */ wa_masked_en(wal, diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c836af0b8231..10e6c47c4149 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -9027,6 +9027,9 @@ enum { #define GEN9_DG_MIRROR_FIX_ENABLE (1 << 5) #define GEN9_CCS_TLB_PREFETCH_ENABLE (1 << 3) +#define SAMPLER_MODE _MMIO(0xe18c) +#define SAMPLER_ENABLE_SMALL_PL (1 << 15) + #define GEN8_ROW_CHICKEN _MMIO(0xe4f0) #define FLOW_CONTROL_ENABLE (1 << 15) #define PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE (1 << 8) -- 2.21.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
