freedreno: Protect gmem_cache ralloc allocations
Since the ralloc context for cache_key allocation is shared between all
the contexts hanging off a screen, we need to allocate the key under the
screen->lock.
Fixes: 91f9bb99c5
("freedreno: add gmem state cache")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7342>
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@ -528,11 +528,15 @@ lookup_gmem_state(struct fd_batch *batch, bool assume_zs, bool no_scis_opt)
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struct fd_screen *screen = batch->ctx->screen;
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struct fd_gmem_cache *cache = &screen->gmem_cache;
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struct fd_gmem_stateobj *gmem = NULL;
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/* Lock before allocating gmem_key, since that a screen-wide
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* ralloc pool and ralloc itself is not thread-safe.
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*/
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fd_screen_lock(screen);
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struct gmem_key *key = gmem_key_init(batch, assume_zs, no_scis_opt);
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uint32_t hash = gmem_key_hash(key);
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fd_screen_lock(screen);
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struct hash_entry *entry =
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_mesa_hash_table_search_pre_hashed(cache->ht, hash, key);
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if (entry) {
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