CACHE_MODE_0 register should be saved and restored as part
of the context, not during engine reset. Move the related
workaround (RC_OP_FLUSH_ENABLE) from rcs_engine_wa_init() to
gen6_ctx_workarounds_init() for Gen6 platforms. This ensures the WA
is applied during context initialisation.
CM0_STC_EVICT_DISABLE_LRA_SNB is also Gen6-specific, but it does
not stick when applied in context, so it remains in engine init.
BSPEC: 11322
Signed-off-by: Sebastian Brzezinka <sebastian.brzezi...@intel.com>
Reviewed-by: Andi Shyti <andi.sh...@linux.intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.ka...@intel.com>
---
v1 -> v2:
- clarify commit message
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 18f1ee529de9..7d486dfa2fc1 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -337,6 +337,9 @@ static void gen6_ctx_workarounds_init(struct
intel_engine_cs *engine,
struct i915_wa_list *wal)
{
wa_masked_en(wal, INSTPM, INSTPM_FORCE_ORDERING);
+
+ /* WaDisable_RenderCache_OperationalFlush:snb */
+ wa_masked_dis(wal, CACHE_MODE_0, RC_OP_FLUSH_ENABLE);
}
static void gen7_ctx_workarounds_init(struct intel_engine_cs *engine,
@@ -2644,9 +2647,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct
i915_wa_list *wal)
GEN6_WIZ_HASHING_MASK,
GEN6_WIZ_HASHING_16x4);
- /* WaDisable_RenderCache_OperationalFlush:snb */
- wa_masked_dis(wal, CACHE_MODE_0, RC_OP_FLUSH_ENABLE);
-
/*
* From the Sandybridge PRM, volume 1 part 3, page 24:
* "If this bit is set, STCunit will have LRA as replacement
--
2.34.1
