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drm: Expose a method for creating anonymous struct file around drm_minor

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Sometimes we need to create a struct file to wrap a drm_device, as it
the user were to have opened /dev/dri/card0 but to do so anonymously
(i.e. for internal use). Provide a utility method to create a struct
file with the drm_device->driver.fops, that wrap the drm_device.

v2: Restrict usage to selftests

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-11-07 18:05:58 +00:00
parent 6349120ddc
commit 4748aa16d5
2 changed files with 45 additions and 0 deletions
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3
include/drm/drm_file.h
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@@ -42,6 +42,7 @@ struct dma_fence;
struct drm_file;
struct drm_device;
struct device;
struct file;
/*
* FIXME: Not sure we want to have drm_minor here in the end, but to avoid
@@ -387,4 +388,6 @@ void drm_event_cancel_free(struct drm_device *dev,
void drm_send_event_locked(struct drm_device *dev, struct drm_pending_event *e);
void drm_send_event(struct drm_device *dev, struct drm_pending_event *e);
struct file *mock_drm_getfile(struct drm_minor *minor, unsigned int flags);
#endif /* _DRM_FILE_H_ */