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anv: Treat imported compressed buffers as displayable (xe2)

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As a part of the effort to unify the displayable attribute
on dmabuf sharing across drivers, we set scanout flag on
imported bos on Xe2+.

Refer to the comment in the change.

Signed-off-by: Jianxun Zhang <jianxun.zhang@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34567>
This commit is contained in:
Jianxun Zhang 2024-08-24 09:41:54 -07:00 • committed by Marge Bot
parent 0af794fe50
commit b7f7f1c74f
1 changed files with 20 additions and 0 deletions
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20
src/intel/vulkan/anv_device.c
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@ -1613,6 +1613,26 @@ VkResult anv_AllocateMemory(
VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT ||
fd_info->handleType ==
VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT);
if (alloc_flags & ANV_BO_ALLOC_COMPRESSED) {
/* First, when importing a compressed buffer on Xe2+, we are sure
* about that the buffer is from a resource created with modifiers
* supporting compression, even the info of modifier is not available
* on the path of allocation. (Buffers created with modifiers not
* supporting compression must be uncompressed or resolved first
* for sharing.)
*
* We assume the source of the sharing (a GL driver or this driver)
* would create the shared buffer for scanout usage as well by
* following the above reasons. As a result, configure the imported
* buffer for scanout.
*
* Such assumption could fit on pre-Xe2 platforms as well but become
* more relevant on Xe2+ because the alloc flags will determine bo's
* heap and then PAT entry in the later vm_bind stage.
*/
assert(device->info->ver >= 20);
alloc_flags |= ANV_BO_ALLOC_SCANOUT;
}
result = anv_device_import_bo(device, fd_info->fd, alloc_flags,
client_address, &mem->bo);