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eg/compute: Use reference counting to handle compute memory pool.

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Use pipe_reference to release old RAT surfaces.
RAT surface adds a reference to pool bo, so use reference counting for pool->bo
as well.

v2: Use the same pattern for both defrag paths
    Drop confusing comment

CC: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jan Vesely 2018-05-03 19:26:29 -04:00
parent e01af38d6f
commit f3521ce2c4
2 changed files with 7 additions and 12 deletions
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16
src/gallium/drivers/r600/compute_memory_pool.c
View file

@ -91,10 +91,7 @@ void compute_memory_pool_delete(struct compute_memory_pool* pool)
{
COMPUTE_DBG(pool->screen, "* compute_memory_pool_delete()\n");
free(pool->shadow);
if (pool->bo) {
pool->screen->b.b.resource_destroy((struct pipe_screen *)
pool->screen, (struct pipe_resource *)pool->bo);
}
pipe_resource_reference(&pool->bo, NULL);
/* In theory, all of the items were freed in compute_memory_free.
* Just delete the list heads
*/
@ -213,10 +210,8 @@ int compute_memory_grow_defrag_pool(struct compute_memory_pool *pool,
compute_memory_defrag(pool, src, dst, pipe);
pool->screen->b.b.resource_destroy(
(struct pipe_screen *)pool->screen,
src);
/* Release the old buffer */
pipe_resource_reference(&pool->bo, NULL);
pool->bo = temp;
pool->size_in_dw = new_size_in_dw;
}
@ -230,9 +225,8 @@ int compute_memory_grow_defrag_pool(struct compute_memory_pool *pool,
return -1;
pool->size_in_dw = new_size_in_dw;
pool->screen->b.b.resource_destroy(
(struct pipe_screen *)pool->screen,
(struct pipe_resource *)pool->bo);
/* Release the old buffer */
pipe_resource_reference(&pool->bo, NULL);
pool->bo = r600_compute_buffer_alloc_vram(pool->screen, pool->size_in_dw * 4);
compute_memory_shadow(pool, pipe, 0);

3
src/gallium/drivers/r600/evergreen_compute.c
View file

@ -122,7 +122,8 @@ static void evergreen_set_rat(struct r600_pipe_compute *pipe,
rat_templ.u.tex.first_layer = 0;
rat_templ.u.tex.last_layer = 0;
/* Add the RAT the list of color buffers */
/* Add the RAT the list of color buffers. Drop the old buffer first. */
pipe_surface_reference(&pipe->ctx->framebuffer.state.cbufs[id], NULL);
pipe->ctx->framebuffer.state.cbufs[id] = pipe->ctx->b.b.create_surface(
(struct pipe_context *)pipe->ctx,
(struct pipe_resource *)bo, &rat_templ);