Commit 52530cba authored by Akash Goel's avatar Akash Goel Committed by Chris Wilson
Browse files

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: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarAkash Goel <akash.goel@intel.com>
Signed-off-by: default avatarChris 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: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 8a292d01

drivers/gpu/drm/i915/i915_reg.h

+9 −0
Original line number Diff line number Diff line
@@ -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

 */

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