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dzn: Don't hash adapter LUID as part of device UUID

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Per the Vulkan spec, the device UUID should be identical between reboots.
It should also uniquely identify different instances of the same device,
e.g. 2 identical GPUs connected to different PCI ports, but D3D doesn't
currently expose a way to do both of these things. Prefer persistence
over uniqueness here.

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Bill Kristiansen <billkris@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17340>
This commit is contained in:
Jesse Natalie
2022-07-05 13:43:17 -07:00
committed by Marge Bot
parent 236282559e
commit 9a2ab661b7
1 changed files with 0 additions and 1 deletions
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1
src/microsoft/vulkan/dzn_device.c
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@@ -287,7 +287,6 @@ dzn_physical_device_init_uuids(struct dzn_physical_device *pdev)
_mesa_sha1_update(&sha1_ctx, &pdev->adapter_desc.DeviceId, sizeof(pdev->adapter_desc.DeviceId));
_mesa_sha1_update(&sha1_ctx, &pdev->adapter_desc.SubSysId, sizeof(pdev->adapter_desc.SubSysId));
_mesa_sha1_update(&sha1_ctx, &pdev->adapter_desc.Revision, sizeof(pdev->adapter_desc.Revision));
_mesa_sha1_update(&sha1_ctx, &pdev->adapter_desc.AdapterLuid, sizeof(pdev->adapter_desc.AdapterLuid));
_mesa_sha1_final(&sha1_ctx, sha1);
memcpy(pdev->device_uuid, sha1, VK_UUID_SIZE);
}