drm/i915/vlv: use correct units for rc6 residency v2

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We need to use the clock control reg to figure out how many CZ clks are in
30ns and use that as the basis for our RC6 residency calculations.

v2: use ULL everywhere for consistency (Chris)
    factor out bias for clarity (Chris)

References: https://bugs.freedesktop.org/show_bug.cgi?id=69692
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jesse Barnes 2013-09-26 17:55:58 -07:00 • committed by Daniel Vetter

parent 49798eb2fe

commit e454a05da6

2 changed files with 23 additions and 2 deletions

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3

drivers/gpu/drm/i915/i915_reg.h

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22

drivers/gpu/drm/i915/i915_sysfs.c

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