drm/i915: debugfs/i915_gem_interrupt_info does not need struct_mutex

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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>

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Chris Wilson 2016-09-03 07:53:43 +01:00

parent 02c53d99b6

commit 4bb05040fd

1 changed files with 1 additions and 6 deletions

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drivers/gpu/drm/i915/i915_debugfs.c

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