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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-17 15:13:00 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-02-17 15:30:50 +0000 |
| commit | 2246bea6cf773552106d98ab31ba7952c4ddb3f9 (patch) | |
| tree | 3d565a27d2d757f3d58b1f792e6227c82421f746 /drivers/gpu/drm/i915/intel_ringbuffer.h | |
| parent | 3bb56da78153150d72c67ceb8b7df49f36ae269c (diff) | |
| download | talos-obmc-linux-2246bea6cf773552106d98ab31ba7952c4ddb3f9.tar.gz talos-obmc-linux-2246bea6cf773552106d98ab31ba7952c4ddb3f9.zip | |
drm/i915: Postpone fake breadcrumb interrupt until real interrupts cease
When the timer expires for checking on interrupt processing, check to
see if any interrupts arrived within the last time period. If real
interrupts are still being delivered, we can be reassured that we
haven't missed the final interrupt as the waiter will still be woken.
Only once all activity ceases, do we have to worry about the waiter
never being woken and so need to install a timer to kick the waiter for
a slow arrival of a seqno.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170217151304.16665-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 4ca5308e12bb..4091c97be6ec 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -213,6 +213,7 @@ struct intel_engine_cs { struct intel_render_state *render_state; + atomic_t irq_count; unsigned long irq_posted; #define ENGINE_IRQ_BREADCRUMB 0 #define ENGINE_IRQ_EXECLIST 1 @@ -245,7 +246,7 @@ struct intel_engine_cs { struct timer_list fake_irq; /* used after a missed interrupt */ struct timer_list hangcheck; /* detect missed interrupts */ - unsigned long timeout; + unsigned int hangcheck_interrupts; bool irq_enabled : 1; bool rpm_wakelock : 1; |
