Increase the PKG_C_LATENCY Pkg C Latency field by the added wake time.
v1: Initial version.
v2: Rebase and cosmetic changes.
v3:
- Place latency adjustment early to accomodate round-up. [Suraj]
- Modify commit description and cosmetic change. [Suraj]
WA: 22020432604
Cc: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/skl_watermark.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 29e8ea91c858..407af5b9f1dc 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -2939,7 +2939,17 @@ intel_program_dpkgc_latency(struct intel_atomic_state *state)
}
if (fixed_refresh_rate) {
+ added_wake_time = DSB_EXE_TIME +
+ display->sagv.block_time_us;
+
latency = skl_watermark_max_latency(i915, 1);
+
+ /* Wa_22020432604 */
+ if ((DISPLAY_VER(display) == 20 || DISPLAY_VER(display) == 30) && !latency) {
+ latency += added_wake_time;
+ added_wake_time = 0;
+ }
+
/* Wa_22020299601 */
if ((latency && max_linetime) &&
(DISPLAY_VER(display) == 20 || DISPLAY_VER(display) == 30)) {
@@ -2947,9 +2957,6 @@ intel_program_dpkgc_latency(struct intel_atomic_state *state)
} else if (!latency) {
latency = LNL_PKG_C_LATENCY_MASK;
}
-
- added_wake_time = DSB_EXE_TIME +
- display->sagv.block_time_us;
}
clear = LNL_ADDED_WAKE_TIME_MASK | LNL_PKG_C_LATENCY_MASK;
--
2.29.0
