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drm/i915/guc: Flush the residual log capture irq on disabling 

As we disable the log capture events, flush any residual interrupt
before we flush and disable the worker.

v2: Mika pointed out that it wasn't the worker re-queueing itself, but a
rogue irq.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109716
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/20190221163833.21393-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-02-21 16:38:33 +00:00
parent 772b5408e3
commit 07c100b187
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/intel_guc_log.c
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@ -620,7 +620,12 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log)
void intel_guc_log_relay_close(struct intel_guc_log *log)
{
struct intel_guc *guc = log_to_guc(log);
struct drm_i915_private *i915 = guc_to_i915(guc);
guc_log_disable_flush_events(log);
synchronize_irq(i915->drm.irq);
flush_work(&log->relay.flush_work);
mutex_lock(&log->relay.lock);