[Intel-gfx] [PATCH 3/9] drm/i915/gen12: Add L3 fabric flush

[Mika Kuoppala]

Do a l3 fabric flush when emitting flush.

Signed-off-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gpu_commands.h | 1 +
 drivers/gpu/drm/i915/gt/intel_lrc.c          | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
index 534e435f20bc..98b39e65aed9 100644
--- a/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
+++ b/drivers/gpu/drm/i915/gt/intel_gpu_commands.h
@@ -219,6 +219,7 @@
 #define   DISPLAY_PLANE_A           (0<<20)
 #define   DISPLAY_PLANE_B           (1<<20)
 #define GFX_OP_PIPE_CONTROL(len)	((0x3<<29)|(0x3<<27)|(0x2<<24)|((len)-2))
+#define   PIPE_CONTROL_L3_FABRIC_FLUSH		        (1<<30) /* gen12+ */
 #define   PIPE_CONTROL_COMMAND_CACHE_INVALIDATE		(1<<29) /* gen11+ */
 #define   PIPE_CONTROL_TILE_CACHE_FLUSH			(1<<28) /* gen11+ */
 #define   PIPE_CONTROL_FLUSH_L3				(1<<27)
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 3c5e55ad4f9f..b3ddb928d231 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -4552,6 +4552,7 @@ static int gen12_emit_flush_render(struct i915_request *request,
 		u32 flags = 0;
 		u32 *cs;
 
+		flags |= PIPE_CONTROL_L3_FABRIC_FLUSH;
 		flags |= PIPE_CONTROL_TILE_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH;
 		flags |= PIPE_CONTROL_DEPTH_CACHE_FLUSH;
@@ -4766,6 +4767,7 @@ gen12_emit_fini_breadcrumb_rcs(struct i915_request *request, u32 *cs)
 				       i915_request_active_timeline(request)->hwsp_offset,
 				       PIPE_CONTROL0_HDC_PIPELINE_FLUSH,
 				       PIPE_CONTROL_CS_STALL |
+				       PIPE_CONTROL_L3_FABRIC_FLUSH |
 				       PIPE_CONTROL_TILE_CACHE_FLUSH |
 				       PIPE_CONTROL_RENDER_TARGET_CACHE_FLUSH |
 				       PIPE_CONTROL_DEPTH_CACHE_FLUSH |
-- 
2.17.1