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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)
commite18b9431e46ac0deada6694e047cf80c043a26c0
tree71d44f6a2077f234a3384108c30244347d2ce1c9tree | snapshot (tar.gz zip)
parent76e4e4b532bc9f289039c569063ec4b2e0ef2cc4commit | 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 | blame | history