[Intel-gfx] [PATCH 7/7] drm/i915: GEM operations need to be done under the big lock
tvrtko.ursulin at linux.intel.com
Mon Jan 11 06:47:17 PST 2016
On 11/01/16 14:38, Chris Wilson wrote:
> On Mon, Jan 11, 2016 at 02:08:41PM +0000, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>> VMA creation and GEM list management need the big lock.
>> Mutex unlock ended on the wrong path somehow. (0-day, Julia Lawall)
>> Not to mention drm_gem_object_unreference was there in existing
>> code with no mutex held.
>> Some callers of i915_gem_object_create_stolen_for_preallocated
>> already hold the lock so move the mutex into the other caller
>> as well.
> intel_pm.c valleyview_setup_pctx?
Already holds it traced by the WARN_ON at its top.
More information about the Intel-gfx