Enable the CCS_FLUSH bit 13 in the control pipe for render and
compute engines in platforms starting from Meteor Lake (BSPEC
43904 and 47112).
Fixes: 972282c4cf24 ("drm/i915/gen12: Add aux table invalidate for all engines")
Signed-off-by: Andi Shyti <andi.sh...@linux.intel.com>
Cc: Jonathan Cavitt <jonathan.cav...@intel.com>
Cc: Nirmoy Das <nirmoy....@intel.com>
Cc: <sta...@vger.kernel.org> # v5.8+
---
drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 10 +++++++++-
drivers/gpu/drm/i915/gt/intel_engine_types.h | 1 +
drivers/gpu/drm/i915/gt/intel_gpu_commands.h | 1 +
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
index 3c935d6b68bf0..aa2fb9d72745a 100644
--- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c
@@ -207,7 +207,7 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
* memory traffic is quiesced prior.
*/
if ((mode & EMIT_INVALIDATE) && !HAS_FLAT_CCS(engine->i915))
- mode |= EMIT_FLUSH;
+ mode |= EMIT_FLUSH | EMIT_CCS_FLUSH;
if (mode & EMIT_FLUSH) {
u32 bit_group_0 = 0;
@@ -221,6 +221,14 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
bit_group_0 |= PIPE_CONTROL0_HDC_PIPELINE_FLUSH;
+ /*
+ * When required, in MTL+ platforms we need to
+ * set the CCS_FLUSH bit in the pipe control
+ */
+ if (mode & EMIT_CCS_FLUSH &&
+ GRAPHICS_VER_FULL(rq->i915) >= IP_VER(12, 70))
+ bit_group_0 |= PIPE_CONTROL_CCS_FLUSH;
+
bit_group_1 |= PIPE_CONTROL_TILE_CACHE_FLUSH;
bit_group_1 |= PIPE_CONTROL_FLUSH_L3;
bit_group_1 |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h
b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index e99a6fa03d453..e2cae9d02bd62 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -514,6 +514,7 @@ struct intel_engine_cs {
int (*emit_flush)(struct i915_request *request, u32 mode);
#define EMIT_INVALIDATE BIT(0)
#define EMIT_FLUSH BIT(1)
+#define EMIT_CCS_FLUSH BIT(2) /* MTL+ */
#define EMIT_BARRIER (EMIT_INVALIDATE | EMIT_FLUSH)
int (*emit_bb_start)(struct i915_request *rq,
u64 offset, u32 length,
diff --git a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
index 5d143e2a8db03..5df7cce23197c 100644
--- a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
+++ b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
@@ -299,6 +299,7 @@
#define PIPE_CONTROL_QW_WRITE (1<<14)
#define PIPE_CONTROL_POST_SYNC_OP_MASK (3<<14)
#define PIPE_CONTROL_DEPTH_STALL (1<<13)
+#define PIPE_CONTROL_CCS_FLUSH (1<<13) /* MTL+ */
#define PIPE_CONTROL_WRITE_FLUSH (1<<12)
#define PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH (1<<12) /* gen6+ */
#define PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE (1<<11) /* MBZ on ILK */
--
2.40.1
