diff options
| author | Jouni Högander <jouni.hogander@intel.com> | 2023-03-29 18:07:02 +0300 |
|---|---|---|
| committer | Jouni Högander <jouni.hogander@intel.com> | 2023-03-31 08:43:22 +0300 |
| commit | 8d18373a0ef91845781755492510e00b5a912a0a (patch) | |
| tree | de8f0e0573adac484c6c586d5b86270764c9cc24 /drivers | |
| parent | f389e7ac8d8a9a17bf59507d02ffb756c19b4af5 (diff) | |
drm/i915/psr: Check that vblank is long enough for psr2
Ensure vblank >= psr2 vblank
where
Psr2 vblank = PSR2_CTL Block Count Number maximum line count.
Bspec: 71580, 49274
v2: Use calculated block count number maximum line count
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329150703.432072-6-jouni.hogander@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 07b0c016e78a..446c8acc265b 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -968,6 +968,15 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, return false; } + /* Vblank >= PSR2_CTL Block Count Number maximum line count */ + if (crtc_state->hw.adjusted_mode.crtc_vblank_end - + crtc_state->hw.adjusted_mode.crtc_vblank_start < + psr2_block_count_lines(intel_dp)) { + drm_dbg_kms(&dev_priv->drm, + "PSR2 not enabled, too short vblank time\n"); + 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)) { |