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| author | Danilo Krummrich <dakr@redhat.com> | 2023-08-04 20:23:43 +0200 |
|---|---|---|
| committer | Danilo Krummrich <dakr@redhat.com> | 2023-08-04 20:34:32 +0200 |
| commit | e02238990b1ab2dfc8abb4c28369f1da6e863f81 (patch) | |
| tree | 3f5bbef76d16f42cadccf7f8fa9acf0671433660 /Documentation/gpu | |
| parent | 7a5d5f9c05879e98c8009bea6d0740182725de06 (diff) | |
| download | linux-e02238990b1ab2dfc8abb4c28369f1da6e863f81.tar.gz | |
drm/nouveau: new VM_BIND uAPI interfaces
This commit provides the interfaces for the new UAPI motivated by the
Vulkan API. It allows user mode drivers (UMDs) to:
1) Initialize a GPU virtual address (VA) space via the new
DRM_IOCTL_NOUVEAU_VM_INIT ioctl. UMDs can provide a kernel reserved
VA area.
2) Bind and unbind GPU VA space mappings via the new
DRM_IOCTL_NOUVEAU_VM_BIND ioctl.
3) Execute push buffers with the new DRM_IOCTL_NOUVEAU_EXEC ioctl.
Both, DRM_IOCTL_NOUVEAU_VM_BIND and DRM_IOCTL_NOUVEAU_EXEC support
asynchronous processing with DRM syncobjs as synchronization mechanism.
The default DRM_IOCTL_NOUVEAU_VM_BIND is synchronous processing,
DRM_IOCTL_NOUVEAU_EXEC supports asynchronous processing only.
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Co-developed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804182406.5222-4-dakr@redhat.com
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/driver-uapi.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/gpu/driver-uapi.rst b/Documentation/gpu/driver-uapi.rst index 4411e6919a3dfe..9c7ca6e33a682a 100644 --- a/Documentation/gpu/driver-uapi.rst +++ b/Documentation/gpu/driver-uapi.rst @@ -6,3 +6,11 @@ drm/i915 uAPI ============= .. kernel-doc:: include/uapi/drm/i915_drm.h + +drm/nouveau uAPI +================ + +VM_BIND / EXEC uAPI +------------------- + +.. kernel-doc:: include/uapi/drm/nouveau_drm.h |