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panfrost: Switch resources from an array to a set

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This will help us reduce shared state and simplify multithreading, at
the expense of additional CPU overhead.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12528>
This commit is contained in:
Alyssa Rosenzweig 2021-08-17 15:59:07 +00:00 • committed by Marge Bot
parent 8e2159a57f
commit 2f63ccd080
2 changed files with 16 additions and 15 deletions
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27
src/gallium/drivers/panfrost/pan_job.c
View file

@ -78,7 +78,8 @@ panfrost_batch_init(struct panfrost_context *ctx,
batch->maxx = batch->maxy = 0;
util_copy_framebuffer_state(&batch->key, key);
util_dynarray_init(&batch->resources, NULL);
batch->resources =_mesa_set_create(NULL, _mesa_hash_pointer,
_mesa_key_pointer_equal);
/* Preallocate the main pool, since every batch has at least one job
* structure so it will be used */
@ -121,16 +122,17 @@ panfrost_batch_cleanup(struct panfrost_batch *batch)
panfrost_bo_unreference(bo);
}
util_dynarray_foreach(&batch->resources, struct panfrost_resource *, rsrc) {
BITSET_CLEAR((*rsrc)->track.users, batch_idx);
set_foreach_remove(batch->resources, entry) {
struct panfrost_resource *rsrc = (void *) entry->key;
BITSET_CLEAR(rsrc->track.users, batch_idx);
if ((*rsrc)->track.writer == batch)
(*rsrc)->track.writer = NULL;
if (rsrc->track.writer == batch)
rsrc->track.writer = NULL;
pipe_resource_reference((struct pipe_resource **) rsrc, NULL);
pipe_resource_reference((struct pipe_resource **) &rsrc, NULL);
}
util_dynarray_fini(&batch->resources);
_mesa_set_destroy(batch->resources, NULL);
panfrost_pool_cleanup(&batch->pool);
panfrost_pool_cleanup(&batch->invisible_pool);
@ -229,16 +231,15 @@ panfrost_batch_update_access(struct panfrost_batch *batch,
struct panfrost_context *ctx = batch->ctx;
uint32_t batch_idx = panfrost_batch_idx(batch);
struct panfrost_batch *writer = rsrc->track.writer;
bool found = false;
if (unlikely(!BITSET_TEST(rsrc->track.users, batch_idx))) {
_mesa_set_search_or_add(batch->resources, rsrc, &found);
if (!found) {
BITSET_SET(rsrc->track.users, batch_idx);
/* Reference the resource on the batch */
struct pipe_resource **dst = util_dynarray_grow(&batch->resources,
struct pipe_resource *, 1);
*dst = NULL;
pipe_resource_reference(dst, &rsrc->base);
pipe_reference(NULL, &rsrc->base.reference);
}
/* Flush users if required */

4
src/gallium/drivers/panfrost/pan_job.h
View file

@ -130,8 +130,8 @@ struct panfrost_batch {
mali_ptr uniform_buffers[PIPE_SHADER_TYPES];
mali_ptr push_uniforms[PIPE_SHADER_TYPES];
/* Referenced resources for cleanup */
struct util_dynarray resources;
/* Referenced resources */
struct set *resources;
};
/* Functions for managing the above */