radeonsi: track buffer bind history

similar to gl_buffer_object::UsageHistory

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>

src/gallium/drivers/radeon/r600_buffer_common.c

@@ -516,6 +516,7 @@ r600_alloc_buffer_struct(struct pipe_screen *screen,
 	rbuffer->b.b.screen = screen;
 	rbuffer->b.vtbl = &r600_buffer_vtbl;
 	rbuffer->buf = NULL;
+	rbuffer->bind_history = 0;
 	rbuffer->TC_L2_dirty = false;
 	rbuffer->is_shared = false;
 	util_range_init(&rbuffer->valid_buffer_range);

src/gallium/drivers/radeon/r600_pipe_common.h

@@ -180,6 +180,7 @@ struct r600_resource {
 	unsigned			bo_alignment;
 	enum radeon_bo_domain		domains;
 	enum radeon_bo_flag		flags;
+	unsigned			bind_history;
 
 	/* The buffer range which is initialized (with a write transfer,
 	 * streamout, DMA, or as a random access target). The rest of

src/gallium/drivers/radeonsi/si_descriptors.c

@@ -414,7 +414,9 @@ static void si_set_sampler_view(struct si_context *sctx,
 		pipe_sampler_view_reference(&views->views[slot], view);
 		memcpy(desc, rview->state, 8*4);
 
-		if (rtex->resource.b.b.target != PIPE_BUFFER) {
+		if (rtex->resource.b.b.target == PIPE_BUFFER) {
+			rtex->resource.bind_history |= PIPE_BIND_SAMPLER_VIEW;
+		} else {
 			bool is_separate_stencil =
 				rtex->db_compatible &&
 				rview->is_stencil_sampler;
@@ -640,6 +642,7 @@ static void si_set_shader_image(struct si_context *ctx,
 					  view->u.buf.size,
 					  descs->list + slot * 8);
 		images->compressed_colortex_mask &= ~(1 << slot);
+		res->bind_history |= PIPE_BIND_SHADER_IMAGE;
 	} else {
 		static const unsigned char swizzle[4] = { 0, 1, 2, 3 };
 		struct r600_texture *tex = (struct r600_texture *)res;
@@ -1032,6 +1035,8 @@ static void si_set_constant_buffer(struct si_context *sctx,
 		} else {
 			pipe_resource_reference(&buffer, input->buffer);
 			va = r600_resource(buffer)->gpu_address + input->buffer_offset;
+			/* Only track usage for non-user buffers. */
+			r600_resource(buffer)->bind_history |= PIPE_BIND_CONSTANT_BUFFER;
 		}
 
 		/* Set the descriptor. */
@@ -1157,6 +1162,8 @@ static void si_set_shader_buffers(struct pipe_context *ctx,
 		radeon_add_to_buffer_list_check_mem(&sctx->b, &sctx->b.gfx, buf,
 						    buffers->shader_usage,
 						    buffers->priority, true);
+		buf->bind_history |= PIPE_BIND_SHADER_BUFFER;
+
 		buffers->enabled_mask |= 1u << slot;
 		descs->dirty_mask |= 1u << slot;
 		sctx->descriptors_dirty |=
@@ -1363,6 +1370,8 @@ static void si_set_streamout_targets(struct pipe_context *ctx,
 							    buffers->shader_usage,
 							    RADEON_PRIO_SHADER_RW_BUFFER,
 							    true);
+			r600_resource(buffer)->bind_history |= PIPE_BIND_STREAM_OUTPUT;
+
 			buffers->enabled_mask |= 1u << bufidx;
 		} else {
 			/* Clear the descriptor and unset the resource. */

src/gallium/drivers/radeonsi/si_state.c

@@ -3304,11 +3304,14 @@ static void si_set_vertex_buffers(struct pipe_context *ctx,
 		for (i = 0; i < count; i++) {
 			const struct pipe_vertex_buffer *src = buffers + i;
 			struct pipe_vertex_buffer *dsti = dst + i;
+			struct pipe_resource *buf = src->buffer;
 
-			pipe_resource_reference(&dsti->buffer, src->buffer);
+			pipe_resource_reference(&dsti->buffer, buf);
 			dsti->buffer_offset = src->buffer_offset;
 			dsti->stride = src->stride;
-			r600_context_add_resource_size(ctx, src->buffer);
+			r600_context_add_resource_size(ctx, buf);
+			if (buf)
+				r600_resource(buf)->bind_history |= PIPE_BIND_VERTEX_BUFFER;
 		}
 	} else {
 		for (i = 0; i < count; i++) {
@@ -3324,9 +3327,13 @@ static void si_set_index_buffer(struct pipe_context *ctx,
 	struct si_context *sctx = (struct si_context *)ctx;
 
 	if (ib) {
-		pipe_resource_reference(&sctx->index_buffer.buffer, ib->buffer);
+		struct pipe_resource *buf = ib->buffer;
+
+		pipe_resource_reference(&sctx->index_buffer.buffer, buf);
 	        memcpy(&sctx->index_buffer, ib, sizeof(*ib));
-		r600_context_add_resource_size(ctx, ib->buffer);
+		r600_context_add_resource_size(ctx, buf);
+		if (buf)
+			r600_resource(buf)->bind_history |= PIPE_BIND_INDEX_BUFFER;
 	} else {
 		pipe_resource_reference(&sctx->index_buffer.buffer, NULL);
 	}