diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-05-08 09:06:25 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-05-08 15:06:35 +0100 |
| commit | 519a019491b833209b2920f0fe9db4aa22da6bbe (patch) | |
| tree | 3a7a74045f76ae510a7f6087c8af67734690a5da /drivers/gpu/drm/i915/i915_request.c | |
| parent | 18ecc6c55bcb52e958d1257def58df86ceef7ece (diff) | |
drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD
After realising we need to sample RING_START to detect context switches
from preemption events that do not allow for the seqno to advance, we
can also realise that the seqno itself is just a distance along the ring
and so can be replaced by sampling RING_HEAD.
v2: Bonus comment for the mystery separate CS_STALL before MI_USER_INTERRUPT
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508080704.24223-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_request.c')
0 files changed, 0 insertions, 0 deletions