diff options
| author | Jouni Högander <jouni.hogander@intel.com> | 2024-09-26 09:47:59 +0300 |
|---|---|---|
| committer | Jouni Högander <jouni.hogander@intel.com> | 2024-10-08 10:09:54 +0300 |
| commit | d92df66fd3e78ed307aee64d947be314e91e8cec (patch) | |
| tree | 0d396bf23eff7b26b16f66477ed30e0943dc265e | |
| parent | f3c25031bb321d8cef15ecd4df27d0f644a95193 (diff) | |
| download | linux-d92df66fd3e78ed307aee64d947be314e91e8cec.tar.xz | |
drm/i915/psr: Implement Wa 14019834836
This patch implements HW workaround 14019834836 for display version 30.
v2:
- move Wa 14019834836 to it's own function
- apply only for display version 30
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240926064759.1313335-3-jouni.hogander@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index e3743f687536..3b20325b3f6a 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -2519,6 +2519,38 @@ static bool psr2_sel_fetch_pipe_state_supported(const struct intel_crtc_state *c return true; } +/* Wa 14019834836 */ +static void intel_psr_apply_pr_link_on_su_wa(struct intel_crtc_state *crtc_state) +{ + struct intel_display *display = to_intel_display(crtc_state); + struct intel_encoder *encoder; + int hactive_limit; + + if (crtc_state->psr2_su_area.y1 != 0 || + crtc_state->psr2_su_area.y2 != 0) + return; + + if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) + hactive_limit = intel_dp_is_uhbr(crtc_state) ? 1230 : 546; + else + hactive_limit = intel_dp_is_uhbr(crtc_state) ? 615 : 273; + + if (crtc_state->hw.adjusted_mode.hdisplay < hactive_limit) + return; + + for_each_intel_encoder_mask_with_psr(display->drm, encoder, + crtc_state->uapi.encoder_mask) { + struct intel_dp *intel_dp = enc_to_intel_dp(encoder); + + if (!intel_dp_is_edp(intel_dp) && + intel_dp->psr.panel_replay_enabled && + intel_dp->psr.sel_update_enabled) { + crtc_state->psr2_su_area.y2++; + return; + } + } +} + static void intel_psr_apply_su_area_workarounds(struct intel_crtc_state *crtc_state) { @@ -2531,6 +2563,10 @@ intel_psr_apply_su_area_workarounds(struct intel_crtc_state *crtc_state) IS_ALDERLAKE_P(i915) || IS_TIGERLAKE(i915))) && crtc_state->splitter.enable) crtc_state->psr2_su_area.y1 = 0; + + /* Wa 14019834836 */ + if (DISPLAY_VER(display) == 30) + intel_psr_apply_pr_link_on_su_wa(crtc_state); } int intel_psr2_sel_fetch_update(struct intel_atomic_state *state, |