From: Akash Goel <akash.goel@xxxxxxxxx>
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@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Akash Goel <akash.goel@xxxxxxxxx>
---
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 9464ba3..eacd9ae 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2939,6 +2939,15 @@ 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
*/
--
1.9.2
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