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radeonsi: don't ref and unref an index buffer uploaded from a user buffer

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This replaces u_upload_data_ref with u_upload_data.

No effect since TC ensures we don't get user buffers.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37566>
This commit is contained in:
Marek Olšák 2025-09-12 20:52:44 -04:00 • committed by Marge Bot
parent f140b96edc
commit cc29c41f06
1 changed files with 11 additions and 3 deletions
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14
src/gallium/drivers/radeonsi/si_state_draw.cpp
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@ -2077,7 +2077,7 @@ static void si_emit_all_states(struct si_context *sctx, uint64_t skip_atom_mask)
}
#define DRAW_CLEANUP do { \
if (index_size && indexbuf != info->index.resource) \
if (release_indexbuf) \
pipe_resource_reference(&indexbuf, NULL); \
} while (0)
@ -2171,6 +2171,7 @@ static void si_draw(struct pipe_context *ctx,
}
struct pipe_resource *indexbuf = info->index.resource;
bool release_indexbuf = false;
unsigned index_size = info->index_size;
unsigned index_offset = indirect && indirect->buffer ? draws[0].start * index_size : 0;
@ -2189,6 +2190,7 @@ static void si_draw(struct pipe_context *ctx,
if (unlikely(!indexbuf))
return;
release_indexbuf = true;
si_compute_shorten_ubyte_buffer(sctx, indexbuf, info->index.resource, start_offset,
index_offset + start, count, sctx->render_cond_enabled);
si_barrier_after_simple_buffer_op(sctx, 0, indexbuf, info->index.resource);
@ -2201,6 +2203,7 @@ static void si_draw(struct pipe_context *ctx,
si_mark_atom_dirty(sctx, &sctx->atoms.s.barrier);
si_resource(indexbuf)->L2_cache_dirty = false;
} else if (!IS_DRAW_VERTEX_STATE && info->has_user_indices) {
struct pipe_resource *release_buf = NULL;
unsigned start_offset;
assert(!indirect);
@ -2208,9 +2211,14 @@ static void si_draw(struct pipe_context *ctx,
start_offset = draws[0].start * index_size;
indexbuf = NULL;
u_upload_data_ref(ctx->stream_uploader, start_offset, draws[0].count * index_size,
/* Note that stream_uploader mustn't be used by si_draw in any other place because
* the next use of stream_uploader could release indexbuf before si_draw finishes.
*/
u_upload_data(ctx->stream_uploader, start_offset, draws[0].count * index_size,
sctx->screen->info.tcc_cache_line_size,
(char *)info->index.user + start_offset, &index_offset, &indexbuf);
(char *)info->index.user + start_offset, &index_offset, &indexbuf,
&release_buf);
pipe_resource_release(ctx, release_buf);
if (unlikely(!indexbuf))
return;