diff options
| author | Sebastian Brzezinka <sebastian.brzezinka@intel.com> | 2025-08-11 09:12:39 +0000 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2025-08-18 20:32:11 -0100 |
| commit | 77a16455fae43e304e6adaf83da5b2ba6f3ad1ad (patch) | |
| tree | 0c4c4a3ddcec42b126bd3b5e4934e924e23f66ab | |
| parent | c9932f0d604e4c8f2c6018e598a322acb43c68a2 (diff) | |
drm/i915/gt: Relocate Gen7 context-specific workarounds
CACHE_MODE_1 and CACHE_MODE_0 register should be saved and restored
as part of the context, not during engine reset. Move the related
workarounds (RC_OP_FLUSH_ENABLE, PIXEL_SUBSPAN_COLLECT_OPT_DISABLE)
from rcs_engine_wa_init() to gen7_ctx_workarounds_init() for
Gen7 platforms. This ensures the WA is applied during context
initialisation.
BSPEC: 11322, 11323
Signed-off-by: Sebastian Brzezinka <sebastian.brzezinka@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/06cf152803ab0050e09c521ac2fc3637549860b3.1754902406.git.sebastian.brzezinka@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_workarounds.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 5a95f06900b5..18f1ee529de9 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -343,6 +343,17 @@ static void gen7_ctx_workarounds_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) { wa_masked_en(wal, INSTPM, INSTPM_FORCE_ORDERING); + /* WaDisable_RenderCache_OperationalFlush:ivb,vlv,hsw */ + wa_masked_dis(wal, CACHE_MODE_0_GEN7, RC_OP_FLUSH_ENABLE); + + /* + * BSpec says this must be set, even though + * WaDisable4x2SubspanOptimization:ivb,hsw + * WaDisable4x2SubspanOptimization isn't listed for VLV. + */ + wa_masked_en(wal, + CACHE_MODE_1, + PIXEL_SUBSPAN_COLLECT_OPT_DISABLE); } static void gen8_ctx_workarounds_init(struct intel_engine_cs *engine, @@ -2567,18 +2578,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) RING_MODE_GEN7(RENDER_RING_BASE), GFX_TLB_INVALIDATE_EXPLICIT | GFX_REPLAY_MODE); - /* WaDisable_RenderCache_OperationalFlush:ivb,vlv,hsw */ - wa_masked_dis(wal, CACHE_MODE_0_GEN7, RC_OP_FLUSH_ENABLE); - - /* - * BSpec says this must be set, even though - * WaDisable4x2SubspanOptimization:ivb,hsw - * WaDisable4x2SubspanOptimization isn't listed for VLV. - */ - wa_masked_en(wal, - CACHE_MODE_1, - PIXEL_SUBSPAN_COLLECT_OPT_DISABLE); - /* * BSpec recommends 8x4 when MSAA is used, * however in practice 16x4 seems fastest. |