]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: Keep track of active forcewake domains in a bitmask
authorTvrtko Ursulin <tvrtko.ursulin@intel.com>
Tue, 4 Oct 2016 08:29:17 +0000 (09:29 +0100)
committerTvrtko Ursulin <tvrtko.ursulin@intel.com>
Tue, 4 Oct 2016 10:09:59 +0000 (11:09 +0100)
commite1685da3dbb835f912fca46250bb3651aa561a6c
treec332f08ff5f158a6721ca70a50002e8be0cb4a39
parent716de9d5f40452782c6d832e9579fdfd4bcea83b
drm/i915: Keep track of active forcewake domains in a bitmask

There are current places in the code, and there will be more in the
future, which iterate the forcewake domains to find out which ones
are currently active.

To save them from doing this iteration, we can cheaply keep a mask
of active domains in dev_priv->uncore.fw_domains_active.

This has no cost in terms of object size, even manages to shrink it
overall by 368 bytes on my config.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: "Paneri, Praveen" <praveen.paneri@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/intel_uncore.c