From 52530cbadcdf786d7eb58365034b01810f52db1f Mon Sep 17 00:00:00 2001 From: Akash Goel Date: Sat, 23 Apr 2016 00:05:44 +0530 Subject: [PATCH] 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 --- drivers/gpu/drm/i915/i915_reg.h | 9 +++++++++ 1 file changed, 9 insertions(+) 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 */ -- 2.20.1