drm/i915: Move the irq_counter inside the spinlock
authorChris Wilson <chris@chris-wilson.co.uk>
Wed, 27 Jun 2018 20:13:03 +0000 (21:13 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Thu, 28 Jun 2018 19:56:35 +0000 (20:56 +0100)
commit78796877c37cb2c3898c4bcd2a12238d83858287
treedfb89c14a8a2e1b7cd190a3ff113acf7ed07d434
parent69dc4d003e3b7c262fd5fea3f25852e853eb6d4f
drm/i915: Move the irq_counter inside the spinlock

Rather than have multiple locked instructions inside the notify_ring()
irq handler, move them inside the spinlock and reduce their intrinsic
locking.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180627201304.15817-3-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_irq.c
drivers/gpu/drm/i915/i915_request.c
drivers/gpu/drm/i915/intel_breadcrumbs.c
drivers/gpu/drm/i915/intel_ringbuffer.h