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drm/i915/gt: Save/restore interrupts around breadcrumb disable 

Stop assuming we only get called with irqs-on for disarming the
breadcrumbs, and do a full save/restore spin_lock_irq.

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/20190813132916.20382-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-08-13 14:29:16 +01:00
parent a79ca656b6
commit 3a0f160488
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
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@ -67,14 +67,15 @@ static void __intel_breadcrumbs_disarm_irq(struct intel_breadcrumbs *b)
void intel_engine_disarm_breadcrumbs(struct intel_engine_cs *engine)
{
struct intel_breadcrumbs *b = &engine->breadcrumbs;
unsigned long flags;
if (!b->irq_armed)
return;
spin_lock_irq(&b->irq_lock);
spin_lock_irqsave(&b->irq_lock, flags);
if (b->irq_armed)
__intel_breadcrumbs_disarm_irq(b);
spin_unlock_irq(&b->irq_lock);
spin_unlock_irqrestore(&b->irq_lock, flags);
}
static inline bool __request_completed(const struct i915_request *rq)