> -----Original Message-----
> From: Hogander, Jouni <jouni.hogander at intel.com>
> Sent: Friday, May 3, 2024 12:04 PM
> To: intel-gfx at lists.freedesktop.org
> Cc: Manna, Animesh <animesh.manna at intel.com>; Hogander, Jouni
> <jouni.hogander at intel.com>
> Subject: [PATCH v9 11/12] drm/i915/psr: Split intel_psr2_config_valid for
> panel replay
>
> Part of intel_psr2_config_valid is valid for panel replay. rename it as
> intel_sel_update_config_valid. Split psr2 specific part and name it as
> intel_psr2_config_valid.
>
> v3:
> - move early transport check to psr2 specific check
> - check intel_psr2_config_valid only for non-Panel Replay case
> v2:
> - use psr2_global_enabled for panel replay as well
> - goto unsupported instead of return when global enabled check fails
>
> Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
LGTM.
Reviewed-by: Animesh Manna <animesh.manna at intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_psr.c | 76 ++++++++++++++----------
> 1 file changed, 46 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index f2eca0db47fd..2198448fdb27 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -1142,9 +1142,6 @@ static bool intel_psr2_sel_fetch_config_valid(struct
> intel_dp *intel_dp,
> return false;
> }
>
> - if (psr2_su_region_et_valid(intel_dp))
> - crtc_state->enable_psr2_su_region_et = true;
> -
> return crtc_state->enable_psr2_sel_fetch = true; }
>
> @@ -1515,11 +1512,6 @@ static bool intel_psr2_config_valid(struct intel_dp
> *intel_dp,
> return false;
> }
>
> - if (!psr2_global_enabled(intel_dp)) {
> - drm_dbg_kms(&dev_priv->drm, "PSR2 disabled by flag\n");
> - return false;
> - }
> -
> /*
> * DSC and PSR2 cannot be enabled simultaneously. If a requested
> * resolution requires DSC to be enabled, priority is given to DSC @@
> -1532,12 +1524,6 @@ static bool intel_psr2_config_valid(struct intel_dp
> *intel_dp,
> return false;
> }
>
> - if (crtc_state->crc_enabled) {
> - drm_dbg_kms(&dev_priv->drm,
> - "PSR2 not enabled because it would inhibit pipe
> CRC calculation\n");
> - return false;
> - }
> -
> if (DISPLAY_VER(dev_priv) >= 12) {
> psr_max_h = 5120;
> psr_max_v = 3200;
> @@ -1588,30 +1574,60 @@ static bool intel_psr2_config_valid(struct
> intel_dp *intel_dp,
> return false;
> }
>
> - if (HAS_PSR2_SEL_FETCH(dev_priv)) {
> - if (!intel_psr2_sel_fetch_config_valid(intel_dp, crtc_state) &&
> - !HAS_PSR_HW_TRACKING(dev_priv)) {
> - drm_dbg_kms(&dev_priv->drm,
> - "PSR2 not enabled, selective fetch not valid
> and no HW tracking available\n");
> - return false;
> - }
> - }
> -
> - if (!psr2_granularity_check(intel_dp, crtc_state)) {
> - drm_dbg_kms(&dev_priv->drm, "PSR2 not enabled, SU
> granularity not compatible\n");
> - goto unsupported;
> - }
> -
> if (!crtc_state->enable_psr2_sel_fetch &&
> (crtc_hdisplay > psr_max_h || crtc_vdisplay > psr_max_v)) {
> drm_dbg_kms(&dev_priv->drm,
> "PSR2 not enabled, resolution %dx%d > max
> supported %dx%d\n",
> crtc_hdisplay, crtc_vdisplay,
> psr_max_h, psr_max_v);
> - goto unsupported;
> + return false;
> }
>
> tgl_dc3co_exitline_compute_config(intel_dp, crtc_state);
> +
> + if (psr2_su_region_et_valid(intel_dp))
> + crtc_state->enable_psr2_su_region_et = true;
> +
> + return true;
> +}
> +
> +static bool intel_sel_update_config_valid(struct intel_dp *intel_dp,
> + struct intel_crtc_state *crtc_state) {
> + struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> +
> + if (HAS_PSR2_SEL_FETCH(dev_priv) &&
> + !intel_psr2_sel_fetch_config_valid(intel_dp, crtc_state) &&
> + !HAS_PSR_HW_TRACKING(dev_priv)) {
> + drm_dbg_kms(&dev_priv->drm,
> + "Selective update not enabled, selective fetch not
> valid and no HW tracking available\n");
> + goto unsupported;
> + }
> +
> + if (!psr2_global_enabled(intel_dp)) {
> + drm_dbg_kms(&dev_priv->drm, "Selective update disabled
> by flag\n");
> + goto unsupported;
> + }
> +
> + if (!crtc_state->has_panel_replay &&
> !intel_psr2_config_valid(intel_dp, crtc_state))
> + goto unsupported;
> +
> + if (crtc_state->has_panel_replay && (DISPLAY_VER(dev_priv) < 14 ||
> + !intel_dp-
> >psr.sink_panel_replay_su_support))
> + goto unsupported;
> +
> + if (crtc_state->crc_enabled) {
> + drm_dbg_kms(&dev_priv->drm,
> + "Selective update not enabled because it would
> inhibit pipe CRC calculation\n");
> + goto unsupported;
> + }
> +
> + if (!psr2_granularity_check(intel_dp, crtc_state)) {
> + drm_dbg_kms(&dev_priv->drm,
> + "Selective update not enabled, SU granularity not
> compatible\n");
> + goto unsupported;
> + }
> +
> return true;
>
> unsupported:
> @@ -1693,7 +1709,7 @@ void intel_psr_compute_config(struct intel_dp
> *intel_dp,
> if (!crtc_state->has_psr)
> return;
>
> - crtc_state->has_sel_update = intel_psr2_config_valid(intel_dp,
> crtc_state);
> + crtc_state->has_sel_update = intel_sel_update_config_valid(intel_dp,
> +crtc_state);
> }
>
> void intel_psr_get_config(struct intel_encoder *encoder,
> --
> 2.34.1