drm/i915: Update ring->flush() to take a requests structure

Updated the various ring->flush() functions to take a request instead of a ring.
Also updated the tracer to include the request id.

For: VIZ-5115
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Tomas Elf <tomas.elf@intel.com>
[danvet: Rebase since I didn't merge the addition of req->uniq.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_gem_context.c

@@ -495,7 +495,7 @@ mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 	 * itlb_before_ctx_switch.
 	 */
 	if (IS_GEN6(ring->dev)) {
-		ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, 0);
+		ret = ring->flush(req, I915_GEM_GPU_DOMAINS, 0);
 		if (ret)
 			return ret;
 	}

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -1069,7 +1069,7 @@ static int hsw_mm_switch(struct i915_hw_ppgtt *ppgtt,
 	int ret;
 
 	/* NB: TLBs must be flushed and invalidated before a switch */
-	ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
+	ret = ring->flush(req, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
 	if (ret)
 		return ret;
 
@@ -1106,7 +1106,7 @@ static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
 	int ret;
 
 	/* NB: TLBs must be flushed and invalidated before a switch */
-	ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
+	ret = ring->flush(req, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
 	if (ret)
 		return ret;
 
@@ -1124,7 +1124,7 @@ static int gen7_mm_switch(struct i915_hw_ppgtt *ppgtt,
 
 	/* XXX: RCS is the only one to auto invalidate the TLBs? */
 	if (ring->id != RCS) {
-		ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
+		ret = ring->flush(req, I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
 		if (ret)
 			return ret;
 	}

drivers/gpu/drm/i915/i915_trace.h

@@ -475,8 +475,8 @@ TRACE_EVENT(i915_gem_ring_dispatch,
 );
 
 TRACE_EVENT(i915_gem_ring_flush,
-	    TP_PROTO(struct intel_engine_cs *ring, u32 invalidate, u32 flush),
-	    TP_ARGS(ring, invalidate, flush),
+	    TP_PROTO(struct drm_i915_gem_request *req, u32 invalidate, u32 flush),
+	    TP_ARGS(req, invalidate, flush),
 
 	    TP_STRUCT__entry(
 			     __field(u32, dev)
@@ -486,8 +486,8 @@ TRACE_EVENT(i915_gem_ring_flush,
 			     ),
 
 	    TP_fast_assign(
-			   __entry->dev = ring->dev->primary->index;
-			   __entry->ring = ring->id;
+			   __entry->dev = req->ring->dev->primary->index;
+			   __entry->ring = req->ring->id;
 			   __entry->invalidate = invalidate;
 			   __entry->flush = flush;
 			   ),

drivers/gpu/drm/i915/intel_ringbuffer.c

@@ -91,10 +91,11 @@ static void __intel_ring_advance(struct intel_engine_cs *ring)
 }
 
 static int
-gen2_render_ring_flush(struct intel_engine_cs *ring,
+gen2_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32	invalidate_domains,
 		       u32	flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	u32 cmd;
 	int ret;
 
@@ -117,10 +118,11 @@ gen2_render_ring_flush(struct intel_engine_cs *ring,
 }
 
 static int
-gen4_render_ring_flush(struct intel_engine_cs *ring,
+gen4_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32	invalidate_domains,
 		       u32	flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	struct drm_device *dev = ring->dev;
 	u32 cmd;
 	int ret;
@@ -247,9 +249,10 @@ intel_emit_post_sync_nonzero_flush(struct intel_engine_cs *ring)
 }
 
 static int
-gen6_render_ring_flush(struct intel_engine_cs *ring,
-                         u32 invalidate_domains, u32 flush_domains)
+gen6_render_ring_flush(struct drm_i915_gem_request *req,
+		       u32 invalidate_domains, u32 flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	u32 flags = 0;
 	u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
@@ -318,9 +321,10 @@ gen7_render_ring_cs_stall_wa(struct intel_engine_cs *ring)
 }
 
 static int
-gen7_render_ring_flush(struct intel_engine_cs *ring,
+gen7_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32 invalidate_domains, u32 flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	u32 flags = 0;
 	u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
@@ -400,9 +404,10 @@ gen8_emit_pipe_control(struct intel_engine_cs *ring,
 }
 
 static int
-gen8_render_ring_flush(struct intel_engine_cs *ring,
+gen8_render_ring_flush(struct drm_i915_gem_request *req,
 		       u32 invalidate_domains, u32 flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	u32 flags = 0;
 	u32 scratch_addr = ring->scratch.gtt_offset + 2 * CACHELINE_BYTES;
 	int ret;
@@ -1594,10 +1599,11 @@ i8xx_ring_put_irq(struct intel_engine_cs *ring)
 }
 
 static int
-bsd_ring_flush(struct intel_engine_cs *ring,
+bsd_ring_flush(struct drm_i915_gem_request *req,
 	       u32     invalidate_domains,
 	       u32     flush_domains)
 {
+	struct intel_engine_cs *ring = req->ring;
 	int ret;
 
 	ret = intel_ring_begin(ring, 2);
@@ -2372,9 +2378,10 @@ static void gen6_bsd_ring_write_tail(struct intel_engine_cs *ring,
 		   _MASKED_BIT_DISABLE(GEN6_BSD_SLEEP_MSG_DISABLE));
 }
 
-static int gen6_bsd_ring_flush(struct intel_engine_cs *ring,
+static int gen6_bsd_ring_flush(struct drm_i915_gem_request *req,
 			       u32 invalidate, u32 flush)
 {
+	struct intel_engine_cs *ring = req->ring;
 	uint32_t cmd;
 	int ret;
 
@@ -2484,9 +2491,10 @@ gen6_ring_dispatch_execbuffer(struct intel_engine_cs *ring,
 
 /* Blitter support (SandyBridge+) */
 
-static int gen6_ring_flush(struct intel_engine_cs *ring,
+static int gen6_ring_flush(struct drm_i915_gem_request *req,
 			   u32 invalidate, u32 flush)
 {
+	struct intel_engine_cs *ring = req->ring;
 	struct drm_device *dev = ring->dev;
 	uint32_t cmd;
 	int ret;
@@ -2900,11 +2908,11 @@ intel_ring_flush_all_caches(struct drm_i915_gem_request *req)
 	if (!ring->gpu_caches_dirty)
 		return 0;
 
-	ret = ring->flush(ring, 0, I915_GEM_GPU_DOMAINS);
+	ret = ring->flush(req, 0, I915_GEM_GPU_DOMAINS);
 	if (ret)
 		return ret;
 
-	trace_i915_gem_ring_flush(ring, 0, I915_GEM_GPU_DOMAINS);
+	trace_i915_gem_ring_flush(req, 0, I915_GEM_GPU_DOMAINS);
 
 	ring->gpu_caches_dirty = false;
 	return 0;
@@ -2921,11 +2929,11 @@ intel_ring_invalidate_all_caches(struct drm_i915_gem_request *req)
 	if (ring->gpu_caches_dirty)
 		flush_domains = I915_GEM_GPU_DOMAINS;
 
-	ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, flush_domains);
+	ret = ring->flush(req, I915_GEM_GPU_DOMAINS, flush_domains);
 	if (ret)
 		return ret;
 
-	trace_i915_gem_ring_flush(ring, I915_GEM_GPU_DOMAINS, flush_domains);
+	trace_i915_gem_ring_flush(req, I915_GEM_GPU_DOMAINS, flush_domains);
 
 	ring->gpu_caches_dirty = false;
 	return 0;

drivers/gpu/drm/i915/intel_ringbuffer.h

@@ -180,7 +180,7 @@ struct  intel_engine_cs {
 
 	void		(*write_tail)(struct intel_engine_cs *ring,
 				      u32 value);
-	int __must_check (*flush)(struct intel_engine_cs *ring,
+	int __must_check (*flush)(struct drm_i915_gem_request *req,
 				  u32	invalidate_domains,
 				  u32	flush_domains);
 	int		(*add_request)(struct intel_engine_cs *ring);