From: Akash Goel Date: Fri, 22 Apr 2016 18:35:44 +0000 (+0530) Subject: drm/i915: Macros to convert PM time interval values to microseconds X-Git-Tag: v4.7-rc1~77^2~37^2~3 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=52530cbadcdf786d7eb58365034b01810f52db1f;p=karo-tx-linux.git 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 Signed-off-by: Akash Goel Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/1461350146-23454-1-git-send-email-akash.goel@intel.com Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 08f01f4470cd..58ac6c7c690b 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 */