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| author | Daniel Vetter <daniel.vetter@intel.com> | 2020-08-14 12:38:42 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-17 20:41:50 +0300 |
| commit | 77ef38574beb3e0b414db48e9c0f04633df68ba6 (patch) | |
| tree | c066b4063eda0350fddbe01e42777e9b09b23f70 /drivers/gpu/drm/drm_crtc.c | |
| parent | 88fee1c9007a38c19f2c558dc0ab1ddb4c323dc5 (diff) | |
| download | linux-77ef38574beb3e0b414db48e9c0f04633df68ba6.tar.xz | |
drm/modeset-lock: Take the modeset BKL for legacy drivers
This fell off in the conversion in
commit 9bcaa3fe58ab7559e71df798bcff6e0795158695
Author: Michal Orzel <michalorzel.eng@gmail.com>
Date: Tue Apr 28 19:10:04 2020 +0200
drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers
but it's caught by the drm_warn_on_modeset_not_all_locked() that the
legacy modeset code uses. Since this is the bkl and it's unclear
what's all protected, play it safe and grab it again for legacy
drivers.
Unfortunately this means we need to sprinkle a few more #includes
around.
Also we need to add the drm_device as a parameter to the _END macro.
Finally remove the mute_lock() from setcrtc, since that's now done by
the macro.
Cc: Alex Deucher <alexdeucher@gmail.com>
References: https://gitlab.freedesktop.org/drm/amd/-/issues/1224
Fixes: 9bcaa3fe58ab ("drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers")
Cc: Michal Orzel <michalorzel.eng@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200814093842.3048472-1-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 4936e1080e41..eb1c33e5d0f4 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -561,7 +561,6 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id)) return -EACCES; - mutex_lock(&crtc->dev->mode_config.mutex); DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); @@ -728,8 +727,7 @@ out: fb = NULL; mode = NULL; - DRM_MODESET_LOCK_ALL_END(ctx, ret); - mutex_unlock(&crtc->dev->mode_config.mutex); + DRM_MODESET_LOCK_ALL_END(dev, ctx, ret); return ret; } |