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venus: recheck valid bit after acquiring lock to init ahb mem type bits

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Fixes: 432ffaf10a ("venus: refactor ahb buffer mem type bits cache to be lazy")
Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24033>
This commit is contained in:
Yiwei Zhang 2023-07-06 16:14:21 -07:00 • committed by Marge Bot
parent ee7e440743
commit 75fd29036f
1 changed files with 5 additions and 3 deletions
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8
src/virtio/vulkan/vn_buffer.c
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@ -106,9 +106,11 @@ vn_buffer_get_ahb_memory_type_bits(struct vn_device *dev)
struct vn_buffer_cache *cache = &dev->buffer_cache;
if (unlikely(!cache->ahb_mem_type_bits_valid)) {
simple_mtx_lock(&cache->mutex);
cache->ahb_mem_type_bits =
vn_android_get_ahb_buffer_memory_type_bits(dev);
cache->ahb_mem_type_bits_valid = true;
if (!cache->ahb_mem_type_bits_valid) {
cache->ahb_mem_type_bits =
vn_android_get_ahb_buffer_memory_type_bits(dev);
cache->ahb_mem_type_bits_valid = true;
}
simple_mtx_unlock(&cache->mutex);
}