drm/i915: Skip unused fw_domains

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Use find-first-set bitop to quickly scan through the fw_domains mask and
skip iterating over unused domains.

v2: Move the WARN into the caller, to prevent compiler warnings in
normal builds.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170323101944.21627-4-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-03-23 10:19:41 +00:00

parent cb3600db6e

commit d2dc94bce2

3 changed files with 45 additions and 30 deletions

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3

drivers/gpu/drm/i915/i915_debugfs.c

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32

drivers/gpu/drm/i915/i915_drv.h

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42

drivers/gpu/drm/i915/intel_uncore.c

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