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drm/i915/display: Adjust Added Wake Time with PKG_C_LATENCY

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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 accommodate round-up. [Suraj]
- Modify commit description and cosmetic change. [Suraj]

WA: 22020432604
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250106094408.1011063-1-animesh.manna@intel.com
This commit is contained in:
Animesh Manna
2025-01-06 15:14:08 +05:30
parent 939bc3e4d9
commit baad97ed29
1 changed files with 10 additions and 3 deletions
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13
drivers/gpu/drm/i915/display/skl_watermark.c
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@@ -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;