drm/i915/gt: Enable the CCS_FLUSH bit in the pipe control and in the CS

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).

For the copy engine add MI_FLUSH_DW_CCS (bit 16) in the command
streamer.

Fixes: 972282c ("drm/i915/gen12: Add aux table invalidate for all engines")
Requires: 8da173db894a ("drm/i915/gt: Rename flags with bit_group_X according to the datasheet")
Signed-off-by: Andi Shyti <[email protected]>
Cc: Jonathan Cavitt <[email protected]>
Cc: Nirmoy Das <[email protected]>
Cc: <[email protected]> # v5.8+
Reviewed-by: Matt Roper <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Reviewed-by: Nirmoy Das <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit b70df82)
Signed-off-by: Tvrtko Ursulin <[email protected]>

Author: Andi Shyti

drivers/gpu/drm/i915/gt/gen8_engine_cs.c

@@ -230,6 +230,13 @@ int gen12_emit_flush_rcs(struct i915_request *rq, u32 mode)
 
 		bit_group_0 |= PIPE_CONTROL0_HDC_PIPELINE_FLUSH;
 
+		/*
+		 * When required, in MTL and beyond platforms we
+		 * need to set the CCS_FLUSH bit in the pipe control
+		 */
+		if (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;
@@ -356,6 +363,10 @@ int gen12_emit_flush_xcs(struct i915_request *rq, u32 mode)
 		cmd |= MI_INVALIDATE_TLB;
 		if (rq->engine->class == VIDEO_DECODE_CLASS)
 			cmd |= MI_INVALIDATE_BSD;
+
+		if (gen12_needs_ccs_aux_inv(rq->engine) &&
+		    rq->engine->class == COPY_ENGINE_CLASS)
+			cmd |= MI_FLUSH_DW_CCS;
 	}
 
 	*cs++ = cmd;

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 */