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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-14 21:50:58 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-06-16 11:16:58 +0300 |
| commit | 34a839c689b093dac6bccc4e0aa6feffcf4c970e (patch) | |
| tree | 4a6a6414c47a98daae69d218c100a6a8a846d736 /include/drm/drmP.h | |
| parent | 1a75a222f5ca1063249b5c92972d32dcc3c8966e (diff) | |
| download | linux-34a839c689b093dac6bccc4e0aa6feffcf4c970e.tar.xz | |
drm: Link directly from drm_master to drm_device
Master-based auth only exists for the legacy/primary drm_minor, hence
there can only be one per device. The goal here is to untangle the
epic dereference games of minor->master and master->minor which is
just massively confusing.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465930269-7883-4-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'include/drm/drmP.h')
| -rw-r--r-- | include/drm/drmP.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 04310cb08111..6067fefc1ec9 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -379,16 +379,19 @@ struct drm_lock_data { * struct drm_master - drm master structure * * @refcount: Refcount for this master object. - * @minor: Link back to minor char device we are master for. Immutable. + * @dev: Link back to the DRM device * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. * @unique_len: Length of unique field. Protected by drm_global_mutex. * @magic_map: Map of used authentication tokens. Protected by struct_mutex. * @lock: DRI lock information. * @driver_priv: Pointer to driver-private information. + * + * Note that master structures are only relevant for the legacy/primary device + * nodes, hence there can only be one per device, not one per drm_minor. */ struct drm_master { struct kref refcount; - struct drm_minor *minor; + struct drm_device *dev; char *unique; int unique_len; struct idr magic_map; |