Gen graphics hardware can be set up to periodically write snapshots of
performance counters into a circular buffer via its Observation
Architecture and this patch exposes that capability to userspace via the
i915 perf interface.
Cc: Chris Wilson
Signed-off-by: Robert Bragg
Signed-off-by: Zhenyu
On 14 September 2016 at 15:19, Robert Bragg wrote:
> Gen graphics hardware can be set up to periodically write snapshots of
> performance counters into a circular buffer via its Observation
> Architecture and this patch exposes that capability to userspace via the
> i915 perf interface.
>
> Cc: Ch
On Fri, Oct 7, 2016 at 10:19 AM, Matthew Auld <
matthew.william.a...@gmail.com> wrote:
> On 14 September 2016 at 15:19, Robert Bragg wrote:
>
> > diff --git a/drivers/gpu/drm/i915/i915_perf.c
> b/drivers/gpu/drm/i915/i915_perf.c
> > index 87530f5..5305982 100644
> > --- a/drivers/gpu/drm/i915/i91
