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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2020-09-23 12:21:59 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2020-09-25 09:21:48 +0200 |
| commit | d693def4fd1c23f1ca5aed1afb9993b3a2069ad2 (patch) | |
| tree | f67f192a6fe6214acab21c0d12fa381810f0f39f /Documentation/gpu/todo.rst | |
| parent | c85dce1b2e7e5037ef9f01bc64a26e40c92a9e79 (diff) | |
| download | linux-d693def4fd1c23f1ca5aed1afb9993b3a2069ad2.tar.gz | |
drm: Remove obsolete GEM and PRIME callbacks from struct drm_driver
Several GEM and PRIME callbacks have been deprecated in favor of per-instance GEM object functions. Remove the callbacks as they are now unused. The only exception is .gem_prime_mmap, which is still in use by several drivers. What is also gone is gem_vm_ops in struct drm_driver. All drivers now use struct drm_gem_object_funcs.vm_ops instead. While at it, the patch also improves error handling around calls to .free and .get_sg_table callbacks. v3: * restore default call to drm_gem_prime_export() in drm_gem_prime_handle_to_fd() * return -ENOSYS if get_sg_table is not set * drop all checks for obj->funcs * clean up TODO list and documentation v2: * update related TODO item (Sam) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200923102159.24084-23-tzimmermann@suse.de
Diffstat (limited to 'Documentation/gpu/todo.rst')
| -rw-r--r-- | Documentation/gpu/todo.rst | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index b0ea17da8ff6..3751ac976c3e 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -149,7 +149,7 @@ have to keep track of that lock and either call ``unreference`` or ``unreference_locked`` depending upon context. Core GEM doesn't have a need for ``struct_mutex`` any more since kernel 4.8, -and there's a ``gem_free_object_unlocked`` callback for any drivers which are +and there's a GEM object ``free`` callback for any drivers which are entirely ``struct_mutex`` free. For drivers that need ``struct_mutex`` it should be replaced with a driver- @@ -289,11 +289,8 @@ struct drm_gem_object_funcs --------------------------- GEM objects can now have a function table instead of having the callbacks on the -DRM driver struct. This is now the preferred way and drivers can be moved over. - -We also need a 2nd version of the CMA define that doesn't require the -vmapping to be present (different hook for prime importing). Plus this needs to -be rolled out to all drivers using their own implementations, too. +DRM driver struct. This is now the preferred way. Callbacks in drivers have been +converted, except for struct drm_driver.gem_prime_mmap. Level: Intermediate |