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 <[email protected]> Signed-off-by: Animesh Manna <[email protected]> --- 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
