diff options
| author | Tvrtko Ursulin | 2017-11-21 19:18:51 +0100 |
|---|---|---|
| committer | Tvrtko Ursulin | 2017-11-22 12:25:05 +0100 |
| commit | 36cc8b963f5eb46352dc79d79e4bd5e8dd2ac2d6 (patch) | |
| tree | 425f1dcf9615b320a2f8bcc480793d31dc20019e /drivers/gpu/drm/i915/i915_sysfs.c | |
| parent | drm/i915/pmu: Add interrupt count metric (diff) | |
| download | kernel-qcow2-linux-36cc8b963f5eb46352dc79d79e4bd5e8dd2ac2d6.tar.gz kernel-qcow2-linux-36cc8b963f5eb46352dc79d79e4bd5e8dd2ac2d6.tar.xz kernel-qcow2-linux-36cc8b963f5eb46352dc79d79e4bd5e8dd2ac2d6.zip | |
drm/i915: Convert intel_rc6_residency_us to ns
Will be used for exposing the PMU counters.
v2:
* Move intel_runtime_pm_get/put to the callers. (Chris Wilson)
* Restore full unit conversion precision.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171121181852.16128-8-tvrtko.ursulin@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index 450ac7d343ad..c290cb600eea 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -42,8 +42,13 @@ 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 DIV_ROUND_CLOSEST_ULL(intel_rc6_residency_us(dev_priv, reg), - 1000); + u64 res; + + intel_runtime_pm_get(dev_priv); + res = intel_rc6_residency_us(dev_priv, reg); + intel_runtime_pm_put(dev_priv); + + return DIV_ROUND_CLOSEST_ULL(res, 1000); } static ssize_t |