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drm/i915/psr: Perform psr2 checks related to ALPM for Panel Replay

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eDP1.5 support ALPM with Panel Replay as well. We need to check ALPM
related things for Panel Replay as well.

Bspec: 68920

v5:
  - instead of using crtc_state->has_panel_replay provide aux_less flag
v4:
  - do not move _compute_psr2_sdp_prior_scanline_indication
  - move ALPM related checks to separate function
v3: move vblank check as well
v2: do not move Vblank >= PSR2_CTL Block Count Number maximum line count
    check

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-9-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander
2024-06-19 09:21:28 +03:00
parent 5d81c29869
commit a18114ebaa
1 changed files with 28 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/gpu/drm/i915/display/intel_psr.c
View File

@@ -1306,14 +1306,15 @@ static int intel_psr_entry_setup_frames(struct intel_dp *intel_dp,
}
static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state)
const struct intel_crtc_state *crtc_state,
bool aux_less)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
int vblank = crtc_state->hw.adjusted_mode.crtc_vblank_end -
crtc_state->hw.adjusted_mode.crtc_vblank_start;
int wake_lines;
if (crtc_state->has_panel_replay)
if (aux_less)
wake_lines = intel_dp->alpm_parameters.aux_less_wake_lines;
else
wake_lines = DISPLAY_VER(i915) < 20 ?
@@ -1330,6 +1331,27 @@ static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp,
return true;
}
static bool alpm_config_valid(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
bool aux_less)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
if (!intel_alpm_compute_params(intel_dp, crtc_state)) {
drm_dbg_kms(&i915->drm,
"PSR2/Panel Replay not enabled, Unable to use long enough wake times\n");
return false;
}
if (!wake_lines_fit_into_vblank(intel_dp, crtc_state, aux_less)) {
drm_dbg_kms(&i915->drm,
"PSR2/Panel Replay not enabled, too short vblank time\n");
return false;
}
return true;
}
static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state)
{
@@ -1413,18 +1435,8 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
return false;
}
if (!intel_alpm_compute_params(intel_dp, crtc_state)) {
drm_dbg_kms(&dev_priv->drm,
"PSR2 not enabled, Unable to use long enough wake times\n");
if (!alpm_config_valid(intel_dp, crtc_state, false))
return false;
}
/* Vblank >= PSR2_CTL Block Count Number maximum line count */
if (!wake_lines_fit_into_vblank(intel_dp, crtc_state)) {
drm_dbg_kms(&dev_priv->drm,
"PSR2 not enabled, too short vblank time\n");
return false;
}
if (!crtc_state->enable_psr2_sel_fetch &&
(crtc_hdisplay > psr_max_h || crtc_vdisplay > psr_max_v)) {
@@ -1558,6 +1570,9 @@ _panel_replay_compute_config(struct intel_dp *intel_dp,
return false;
}
if (!alpm_config_valid(intel_dp, crtc_state, true))
return false;
return true;
}