diff options
| author |   Dave Airlie <airlied@redhat.com> | 2020-08-28 10:52:28 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-08-28 10:52:34 +1000 |
| commit | c2b2f02a02c3ee46ebb7f16adc3749fb145494d7 (patch) | |
| tree | dd91b50428ac038e546b09ecc18fab189d91773a /include | |
| parent | Merge tag 'amd-drm-fixes-5.9-2020-08-26' of git://people.freedesktop.org/~agd5f/linux into drm-fixes (diff) | |
| parent | drm/omap: fix incorrect lock state (diff) | |
| download | wireguard-linux-c2b2f02a02c3ee46ebb7f16adc3749fb145494d7.tar.xz wireguard-linux-c2b2f02a02c3ee46ebb7f16adc3749fb145494d7.zip | |
Merge tag 'drm-misc-fixes-2020-08-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
Fixes for v5.9-rc2:
- Take modeset bkl for legacy drivers.
- Allow null crtc in dp_mst.
- Omap locking state fix.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/7af1e52a-27de-8edc-d0b2-e23b01e8bc96@linux.intel.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drm_modeset_lock.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h index 4fc9a43ac45a..aafd07388eb7 100644 --- a/include/drm/drm_modeset_lock.h +++ b/include/drm/drm_modeset_lock.h @@ -164,6 +164,8 @@ int drm_modeset_lock_all_ctx(struct drm_device *dev, * is 0, so no error checking is necessary */ #define DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, flags, ret) \ + if (!drm_drv_uses_atomic_modeset(dev)) \ + mutex_lock(&dev->mode_config.mutex); \ drm_modeset_acquire_init(&ctx, flags); \ modeset_lock_retry: \ ret = drm_modeset_lock_all_ctx(dev, &ctx); \ @@ -172,6 +174,7 @@ modeset_lock_retry: \ /** * DRM_MODESET_LOCK_ALL_END - Helper to release and cleanup modeset locks + * @dev: drm device * @ctx: local modeset acquire context, will be dereferenced * @ret: local ret/err/etc variable to track error status * @@ -188,7 +191,7 @@ modeset_lock_retry: \ * to that failure. In both of these cases the code between BEGIN/END will not * be run, so the failure will reflect the inability to grab the locks. */ -#define DRM_MODESET_LOCK_ALL_END(ctx, ret) \ +#define DRM_MODESET_LOCK_ALL_END(dev, ctx, ret) \ modeset_lock_fail: \ if (ret == -EDEADLK) { \ ret = drm_modeset_backoff(&ctx); \ @@ -196,6 +199,8 @@ modeset_lock_fail: \ goto modeset_lock_retry; \ } \ drm_modeset_drop_locks(&ctx); \ - drm_modeset_acquire_fini(&ctx); + drm_modeset_acquire_fini(&ctx); \ + if (!drm_drv_uses_atomic_modeset(dev)) \ + mutex_unlock(&dev->mode_config.mutex); #endif /* DRM_MODESET_LOCK_H_ */ |