Re: [Intel-gfx] [PATCH] drm/i915/userptr: Wrap mmu_notifier inside its own rw_semaphore

2018-03-26 Thread Daniel Vetter
On Mon, Mar 26, 2018 at 05:28:58PM +0100, Chris Wilson wrote: > Quoting Tvrtko Ursulin (2018-03-26 16:59:20) > > > > On 26/03/2018 15:59, Chris Wilson wrote: > > > We've always been blatantly ignoring mmu_notifier.h: > > > > > > * Invalidation of multiple concurrent ranges may be > > > *

Re: [Intel-gfx] [PATCH] drm/i915/userptr: Wrap mmu_notifier inside its own rw_semaphore

2018-03-26 Thread Chris Wilson
Quoting Tvrtko Ursulin (2018-03-26 16:59:20) > > On 26/03/2018 15:59, Chris Wilson wrote: > > We've always been blatantly ignoring mmu_notifier.h: > > > > * Invalidation of multiple concurrent ranges may be > > * optionally permitted by the driver. Either way the > > * establishment of

Re: [Intel-gfx] [PATCH] drm/i915/userptr: Wrap mmu_notifier inside its own rw_semaphore

2018-03-26 Thread Tvrtko Ursulin
On 26/03/2018 15:59, Chris Wilson wrote: We've always been blatantly ignoring mmu_notifier.h: * Invalidation of multiple concurrent ranges may be * optionally permitted by the driver. Either way the * establishment of sptes is forbidden in the range passed to *