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| author | Dave Stevenson <dave.stevenson@raspberrypi.com> | 2024-09-09 17:38:45 +0100 |
|---|---|---|
| committer | Phil Elwell <8911409+pelwell@users.noreply.github.com> | 2024-10-22 15:41:27 +0100 |
| commit | 2e85eb0e4950c5ad27df5a3ba54300e89694eba4 (patch) | |
| tree | cd2f0af0f7b9279628889025721235dcef2c4b8f /drivers/gpu | |
| parent | a2c8327a1b534574d51f5ea42009876e0008efd2 (diff) | |
| download | linux-rpi-2e85eb0e4950c5ad27df5a3ba54300e89694eba4.tar.gz linux-rpi-2e85eb0e4950c5ad27df5a3ba54300e89694eba4.tar.bz2 linux-rpi-2e85eb0e4950c5ad27df5a3ba54300e89694eba4.zip | |
drm/vc4: Drop panic priority for writeback connector
As the writeback connector doesn't have the same realtime
constraints of a live display, drop the panic priority for it.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index e9144063b67c..eb57a1b96ab1 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -224,7 +224,7 @@ static void vc4_hvs_pv_muxing_commit(struct vc4_dev *vc4, struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc_state); u32 dispctrl; - u32 dsp3_mux; + u32 dsp3_mux_pri; if (!crtc_state->active) continue; @@ -241,15 +241,22 @@ static void vc4_hvs_pv_muxing_commit(struct vc4_dev *vc4, * enabled. In this case, FIFO 2 is directly accessed by the * TXP IP, and we need to disable the FIFO2 -> pixelvalve1 * route. + * + * TXP can also run with a lower panic level than a live display, + * as it doesn't have the same real-time constraint. */ - if (vc4_crtc->feeds_txp) - dsp3_mux = VC4_SET_FIELD(3, SCALER_DISPCTRL_DSP3_MUX); - else - dsp3_mux = VC4_SET_FIELD(2, SCALER_DISPCTRL_DSP3_MUX); + if (vc4_crtc->feeds_txp) { + dsp3_mux_pri = VC4_SET_FIELD(3, SCALER_DISPCTRL_DSP3_MUX); + dsp3_mux_pri |= VC4_SET_FIELD(0, SCALER_DISPCTRL_PANIC2); + } else { + dsp3_mux_pri = VC4_SET_FIELD(2, SCALER_DISPCTRL_DSP3_MUX); + dsp3_mux_pri |= VC4_SET_FIELD(2, SCALER_DISPCTRL_PANIC2); + } dispctrl = HVS_READ(SCALER_DISPCTRL) & - ~SCALER_DISPCTRL_DSP3_MUX_MASK; - HVS_WRITE(SCALER_DISPCTRL, dispctrl | dsp3_mux); + ~(SCALER_DISPCTRL_DSP3_MUX_MASK | + SCALER_DISPCTRL_PANIC2_MASK); + HVS_WRITE(SCALER_DISPCTRL, dispctrl | dsp3_mux_pri); } } |