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authorMika Kuoppala <mika.kuoppala@linux.intel.com>2017-03-15 17:43:00 +0200
committerMika Kuoppala <mika.kuoppala@intel.com>2017-03-16 12:28:28 +0200
commitc5a0ad114b6a9f4ad03f30bd7c61994bc6e8ab52 (patch)
treee30d1155564a7a9ae2f827a4473cfdb9ee366220 /drivers/gpu/drm/i915/i915_sysfs.c
parent135bafa551de3e7a8fff29e80a714b44d7dfd778 (diff)
drm/i915: Return residency as microseconds
Change the granularity from milliseconds to microseconds when returning rc6 residencies. This is in preparation for increased resolution on some platforms. v2: use 64bit div macro (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_sysfs.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index ab723e3403d3..f3fdfda5e558 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -42,7 +42,8 @@ static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
static u32 calc_residency(struct drm_i915_private *dev_priv,
i915_reg_t reg)
{
- return intel_rc6_residency(dev_priv, reg);
+ return DIV_ROUND_CLOSEST_ULL(intel_rc6_residency_us(dev_priv, reg),
+ 1000);
}
static ssize_t