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| author | Vinod Koul <vkoul@kernel.org> | 2020-09-11 14:15:36 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-09-11 14:15:36 +0200 |
| commit | 4c80e9323967125ab8aa7c271ccc7624abc08832 (patch) | |
| tree | c9881b5814c184aa0c1cb58c6383beab9173e388 /include/drm/drm_modeset_lock.h | |
| parent | dmaengine: dmatest: Print error codes as signed value (diff) | |
| parent | Linux 5.9-rc4 (diff) | |
| download | linux-4c80e9323967125ab8aa7c271ccc7624abc08832.tar.xz linux-4c80e9323967125ab8aa7c271ccc7624abc08832.zip | |
Merge tag 'v5.9-rc4' into next
Linux 5.9-rc4
Diffstat (limited to 'include/drm/drm_modeset_lock.h')
| -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_ */ |