mesa/src/virtio
Simon McVittie b860ae309a vulkan: Optionally share one JSON manifest per driver between architectures
If the library_path is just a basename like `libvulkan_lvp.so`, then we
can share the same JSON manifest like `lvp_icd.json` between all of the
architectures, like we already do for Vulkan layers. The library will
be looked up in the dynamic linker's default search path in this case,
and in practice will be found in `${libdir}`. This is how the Mesa's
EGL driver and Vulkan layers work, how Mesa is packaged in Debian 13,
and also how the Nvidia proprietary driver works; it makes installation
simpler for distros, especially on multiarch systems like Debian and
the freedesktop.org SDK.

However, if we want a separate manifest per architecture in order to
be able to write the full path into it, we still need per-architecture
filename disambiguation like `lvp_icd.x86_64.json`.

We presumably still want a separate per architecture on Windows, because
the concept of a single monolithic `${libdir}` is less common there, and
it can also be helpful during development when setting `$VK_DRIVER_FILES`
to force the use of a specific driver installed in a non-default location.

Use the following parameter to passed to vk_icd_gen:
'--icd-lib-path', vulkan_icd_lib_path,
'--icd-filename', icd_file_name,
output : 'virtio_icd.' + vulkan_manifest_suffix,

and the output is passed by '--out', '@OUTPUT@',
so we can detect vulkan_manifest_per_architecture from the --out parameter in script.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13745
Signed-off-by: Simon McVittie <smcv@collabora.com>
Co-authored-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37314>
2025-11-24 19:05:57 +00:00
..
ci ci/venus: skip those causing oom killer to kill deqp 2025-11-24 09:50:09 +00:00
protocols mesa: import mesa3d_protocols 2025-06-17 22:28:54 +00:00
vdrm treewide: use UTIL_DYNARRAY_INIT 2025-11-04 13:39:48 +00:00
venus-protocol venus: sync latest protocol 2025-03-27 00:52:17 +00:00
virtgpu_kumquat virtio: kumquat: slice length fix 2025-10-20 15:45:06 +00:00
virtgpu_kumquat_ffi clang-format: Update the .clang-format files to conformance clang-format json-schema 2025-09-09 07:04:55 +00:00
virtio-gpu ac/info: get vm_always_valid support through ac_linux_drm 2025-11-20 10:21:47 +00:00
vtest virtio/vdrm: Add vtest backend 2025-04-08 15:38:39 +00:00
vulkan vulkan: Optionally share one JSON manifest per driver between architectures 2025-11-24 19:05:57 +00:00