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(parent: 600ad61) | patch
drm/i915: debugfs/i915_gem_interrupt_info does not need struct_mutex
authorChris Wilson <chris@chris-wilson.co.uk>
Sat, 3 Sep 2016 06:53:43 +0000 (07:53 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Sat, 3 Sep 2016 12:11:05 +0000 (13:11 +0100)
commit6ee16a39330cad7bc21d39245420dc3d49f08187
tree4eaef5614fe0e9763a3020c4225d3d9b11119ea0tree | snapshot
parent600ad61745b6b5bd84990c630d4b91884b4cf0b1commit | diff
drm/i915: debugfs/i915_gem_interrupt_info does not need struct_mutex

i915_gem_interrupt_info() only looks at mmio registers, and the waiters
under a spinlock. It doesn't need struct_mutex (but does need the rpm
wakelock for mmio access). Maybe useful using get_if_notidle?

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20160903065343.25151-2-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
drivers/gpu/drm/i915/i915_debugfs.c diff | blob | history
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