On to, 2016-07-28 at 11:10 +0100, Chris Wilson wrote:
> On Thu, Jul 28, 2016 at 12:49:31PM +0300, Joonas Lahtinen wrote:
> >
> > On ke, 2016-07-27 at 12:14 +0100, Chris Wilson wrote:
> > >
> > > static int i915_gem_object_list_info(struct seq_file *m, void *data)
> > > diff --git
On Thu, Jul 28, 2016 at 12:49:31PM +0300, Joonas Lahtinen wrote:
> On ke, 2016-07-27 at 12:14 +0100, Chris Wilson wrote:
> > static int i915_gem_object_list_info(struct seq_file *m, void *data)
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
> > b/drivers/gpu/drm/i915/i915_drv.h
> > index
On Wed, Jul 27, 2016 at 12:14:55PM +0100, Chris Wilson wrote:
> The individual bits inside obj->frontbuffer_bits are protected by each
> plane->mutex, but the whole bitfield may be accessed by multiple KMS
> operations simultaneously and so the RMW need to be under atomics.
> However, for updating
On ke, 2016-07-27 at 12:14 +0100, Chris Wilson wrote:
> static int i915_gem_object_list_info(struct seq_file *m, void *data)
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index a24d31e3e014..b6b9a1f78238 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++
The individual bits inside obj->frontbuffer_bits are protected by each
plane->mutex, but the whole bitfield may be accessed by multiple KMS
operations simultaneously and so the RMW need to be under atomics.
However, for updating the single field we do not need to mandate that it
be under the
