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| author | José Roberto de Souza <jose.souza@intel.com> | 2022-04-14 18:11:18 +0300 |
|---|---|---|
| committer | José Roberto de Souza <jose.souza@intel.com> | 2022-04-19 16:12:20 +0300 |
| commit | c837e027436df69d20474bd3fdea2c6b3971aa6f (patch) | |
| tree | 8e8eb9310c6d7fb3c826eea3ca4ed4f7ee770fbd | |
| parent | 554ae8dce1268789e72767a67f0635cb743b3cea (diff) | |
| download | linux-c837e027436df69d20474bd3fdea2c6b3971aa6f.tar.xz | |
drm/i915/display/psr: Clear more PSR state during disable
After commit 805f04d42a6b ("drm/i915/display/psr: Use continuos full
frame to handle frontbuffer invalidations") was merged we started to
get some drm_WARN_ON(&dev_priv->drm, !(tmp & PSR2_MAN_TRK_CTL_ENABLE))
in tests that are executed in pipe B.
This is probably due psr2_sel_fetch_cff_enabled being left set during
PSR disable in the pipe A, so the PSR2_MAN_TRK_CTL write in
intel_psr2_program_trans_man_trk_ctl() is skipped in pipe B and then
we get the warning when actually enabling PSR after planes programing.
We don't get such warnings when running tests in pipe A because
PSR2_MAN_TRK_CTL is only cleared when enabling PSR2 with hardware
tracking.
Was not able to reproduce this issue but cleaning the PSR state
disable will not harm anything at all.
Fixes: 805f04d42a6b ("drm/i915/display/psr: Use continuos full frame to handle frontbuffer invalidations")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/5634
Cc: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220414151118.21980-2-jose.souza@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index 8ec7c161284b..06db407e2749 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1353,6 +1353,9 @@ static void intel_psr_disable_locked(struct intel_dp *intel_dp) drm_dp_dpcd_writeb(&intel_dp->aux, DP_RECEIVER_ALPM_CONFIG, 0); intel_dp->psr.enabled = false; + intel_dp->psr.psr2_enabled = false; + intel_dp->psr.psr2_sel_fetch_enabled = false; + intel_dp->psr.psr2_sel_fetch_cff_enabled = false; } /** |