On Sat, Jul 26, 2014 at 11:27:38AM +0100, Chris Wilson wrote: > On Wed, Jun 18, 2014 at 10:54:13PM +0200, Daniel Vetter wrote: > > On Fri, Jun 13, 2014 at 04:38:03PM +0100, oscar.ma...@intel.com wrote: > > > From: Oscar Mateo <oscar.ma...@intel.com> > > > > > > Or with a spinlock grabbed, because it might sleep, which is not > > > a nice thing to do. Instead, do the runtime_pm get/put together > > > with the create/destroy request, and handle the forcewake get/put > > > directly. > > > > > > Signed-off-by: Oscar Mateo <oscar.ma...@intel.com> > > > > Looks like a fixup that should be squashed into relevant earlier patches. > > The whole gen6_gt_force_wake_get() calling intel_runtime_pm_get() is > broken due to this - we must be able to read registers in atomic > context! > > Please revert c8c8fb33b37766acf6474784b0d5245dab9a1690
force_wake_get can't call runtime_pm_get becuase pm_get can sleep. So if you want to read registers from atomic context you have to have a runtime pm reference from someone else. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
