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(parent: ca9f61c) | patch
drm/i915: Remove unrequired POSTING_READ from gen6_set_rps()
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 20 Feb 2017 09:47:09 +0000 (09:47 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 20 Feb 2017 12:40:48 +0000 (12:40 +0000)
commitea0dc87b0fb4f8ded9102741199caa38234d8673
tree71d44f6a2077f234a3384108c30244347d2ce1c9tree | snapshot
parentca9f61cddfcc67fb75951d422a722164adecd78ccommit | diff
drm/i915: Remove unrequired POSTING_READ from gen6_set_rps()

The uncached mmio is sufficient to queue the mmio writes without raising
forcewake. The forced flush along with acquiring forcewake from the
posting read is not required for adjusting the RPS frequency.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170220094713.22874-3-chris@chris-wilson.co.uk
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
drivers/gpu/drm/i915/intel_pm.c diff | blob | history
Linux Kernel Source Tree.