drm/i915: Flush waiters on seqno wraparound

Browse source

Previously, we would spin waiting for all waiters to wake up and notice
their request had completed before we would reset the seqno upon
wraparound.  However, we can mark their waits as complete and wake them
up directly using the existing machinery for handling the flushing of
missed wakeups when idling.

Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180306130143.13312-2-chris@chris-wilson.co.uk

...

This commit is contained in:

Chris Wilson 2018-03-06 13:01:43 +00:00

parent 93eef7d653

commit f41d19becc

3 changed files with 2 additions and 24 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

drivers/gpu/drm/i915/i915_request.c

View file

19

drivers/gpu/drm/i915/intel_breadcrumbs.c

View file

1

drivers/gpu/drm/i915/intel_ringbuffer.h

View file