r600g,radeonsi: add common interface for buffer invalidation

This will be used by common code in the next commit.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

src/gallium/drivers/r600/r600_buffer.c

@@ -91,7 +91,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
 		/* Check if mapping this buffer would cause waiting for the GPU. */
 		if (r600_rings_is_buffer_referenced(&rctx->b, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
 		    rctx->b.ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
-			r600_invalidate_buffer(&rctx->b.b, &rbuffer->b.b);
+			rctx->b.invalidate_buffer(&rctx->b.b, &rbuffer->b.b);
 		}
 	}
 	else if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&

src/gallium/drivers/r600/r600_pipe.h

@@ -717,7 +717,6 @@ unsigned r600_get_swizzle_combined(const unsigned char *swizzle_format,
 uint32_t r600_translate_texformat(struct pipe_screen *screen, enum pipe_format format,
 				  const unsigned char *swizzle_view,
 				  uint32_t *word4_p, uint32_t *yuv_format_p);
-void r600_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf);
 
 /* r600_uvd.c */
 struct pipe_video_codec *r600_uvd_create_decoder(struct pipe_context *context,

src/gallium/drivers/r600/r600_state_common.c

@@ -2072,7 +2072,7 @@ out_unknown:
 	return ~0;
 }
 
-void r600_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf)
+static void r600_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf)
 {
 	struct r600_context *rctx = (struct r600_context*)ctx;
 	struct r600_resource *rbuffer = r600_resource(buf);
@@ -2162,6 +2162,7 @@ void r600_init_common_state_functions(struct r600_context *rctx)
 	rctx->b.b.create_surface = r600_create_surface;
 	rctx->b.b.surface_destroy = r600_surface_destroy;
 	rctx->b.b.draw_vbo = r600_draw_vbo;
+	rctx->b.invalidate_buffer = r600_invalidate_buffer;
 }
 
 void r600_trace_emit(struct r600_context *rctx)

src/gallium/drivers/radeon/r600_pipe_common.h

@@ -256,6 +256,10 @@ struct r600_common_context {
 				      unsigned first_level, unsigned last_level,
 				      unsigned first_layer, unsigned last_layer,
 				      unsigned first_sample, unsigned last_sample);
+
+	/* Reallocate the buffer and update all resource bindings where
+	 * the buffer is bound, including all resource descriptors. */
+	void (*invalidate_buffer)(struct pipe_context *ctx, struct pipe_resource *buf);
 };
 
 /* r600_buffer.c */

src/gallium/drivers/radeonsi/r600_buffer.c

@@ -63,7 +63,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
 		/* Check if mapping this buffer would cause waiting for the GPU. */
 		if (r600_rings_is_buffer_referenced(&rctx->b, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
 		    rctx->b.ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
-			si_invalidate_buffer(&rctx->b.b, &rbuffer->b.b);
+			rctx->b.invalidate_buffer(&rctx->b.b, &rbuffer->b.b);
 		}
 	}
 

src/gallium/drivers/radeonsi/si_descriptors.c

@@ -551,7 +551,7 @@ static void si_desc_reset_buffer_offset(struct pipe_context *ctx,
  * idle by discarding its contents. Apps usually tell us when to do this using
  * map_buffer flags, for example.
  */
-void si_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf)
+static void si_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf)
 {
 	struct r600_context *rctx = (struct r600_context*)ctx;
 	struct r600_resource *rbuffer = r600_resource(buf);
@@ -811,6 +811,7 @@ void si_init_all_descriptors(struct r600_context *rctx)
 	rctx->b.b.set_constant_buffer = si_set_constant_buffer;
 	rctx->b.b.set_stream_output_targets = si_set_streamout_targets;
 	rctx->b.clear_buffer = si_clear_buffer;
+	rctx->b.invalidate_buffer = si_invalidate_buffer;
 }
 
 void si_release_all_descriptors(struct r600_context *rctx)

src/gallium/drivers/radeonsi/si_state.h

@@ -200,7 +200,6 @@ void si_all_descriptors_begin_new_cs(struct r600_context *rctx);
 void si_copy_buffer(struct r600_context *rctx,
 		    struct pipe_resource *dst, struct pipe_resource *src,
 		    uint64_t dst_offset, uint64_t src_offset, unsigned size);
-void si_invalidate_buffer(struct pipe_context *ctx, struct pipe_resource *buf);
 
 /* si_state.c */
 struct si_pipe_shader_selector;