diff options
author | Dave Airlie <airlied@redhat.com> | 2014-06-05 20:28:59 +1000 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2014-06-05 20:28:59 +1000 |
commit | 8d4ad9d4bb0a618c975a32d77087694ec6336f68 (patch) | |
tree | d18d12688174a623e3503b11118e44ef8186c90b /drivers/gpu/drm/drm_crtc_helper.c | |
parent | 5ea1f752ae04be403a3dc8ec876a60d7f5f6990a (diff) | |
parent | 9e9a928eed8796a0a1aaed7e0b676db86ba84594 (diff) |
Merge commit '9e9a928eed8796a0a1aaed7e0b676db86ba84594' into drm-next
Merge drm-fixes into drm-next.
Both i915 and radeon need this done for later patches.
Conflicts:
drivers/gpu/drm/drm_crtc_helper.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/i915_gem_execbuffer.c
drivers/gpu/drm/i915/i915_gem_gtt.c
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
-rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index eb1c062e04b2..78b37f3febd3 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -29,6 +29,7 @@ * Jesse Barnes <jesse.barnes@intel.com> */ +#include <linux/kernel.h> #include <linux/export.h> #include <linux/moduleparam.h> @@ -88,8 +89,15 @@ bool drm_helper_encoder_in_use(struct drm_encoder *encoder) struct drm_connector *connector; struct drm_device *dev = encoder->dev; - WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); - WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + /* + * We can expect this mutex to be locked if we are not panicking. + * Locking is currently fubar in the panic handler. + */ + if (!oops_in_progress) { + WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + } + list_for_each_entry(connector, &dev->mode_config.connector_list, head) if (connector->encoder == encoder) return true; @@ -113,7 +121,13 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc) struct drm_encoder *encoder; struct drm_device *dev = crtc->dev; - WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + /* + * We can expect this mutex to be locked if we are not panicking. + * Locking is currently fubar in the panic handler. + */ + if (!oops_in_progress) + WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) return true; |