summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/i915
diff options
context:
space:
mode:
authorAkash Goel <akash.goel@intel.com>2016-04-23 00:05:44 +0530
committerChris Wilson <chris@chris-wilson.co.uk>2016-04-24 11:33:53 +0100
commit52530cbadcdf786d7eb58365034b01810f52db1f (patch)
tree124309240767f5270b2d47eaa728917b15619187 /drivers/gpu/drm/i915
parent8a292d016d1cc4938ff14b4df25328230b08a408 (diff)
downloadop-kernel-dev-52530cbadcdf786d7eb58365034b01810f52db1f.zip
op-kernel-dev-52530cbadcdf786d7eb58365034b01810f52db1f.tar.gz
drm/i915: Macros to convert PM time interval values to microseconds
Added a new GT_PM_INTERVAL_TO_US macro to perform the platform specific conversion of PM time interval values to microseconds unit. Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Akash Goel <akash.goel@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1461350146-23454-1-git-send-email-akash.goel@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 08f01f4..58ac6c7 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2964,6 +2964,15 @@ enum skl_disp_power_wells {
INTERVAL_1_33_US(us)) : \
INTERVAL_1_28_US(us))
+#define INTERVAL_1_28_TO_US(interval) (((interval) << 7) / 100)
+#define INTERVAL_1_33_TO_US(interval) (((interval) << 2) / 3)
+#define INTERVAL_0_833_TO_US(interval) (((interval) * 5) / 6)
+#define GT_PM_INTERVAL_TO_US(dev_priv, interval) (IS_GEN9(dev_priv) ? \
+ (IS_BROXTON(dev_priv) ? \
+ INTERVAL_0_833_TO_US(interval) : \
+ INTERVAL_1_33_TO_US(interval)) : \
+ INTERVAL_1_28_TO_US(interval))
+
/*
* Logical Context regs
*/
OpenPOWER on IntegriCloud