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drm/i915/vrr: Disable VRR when using bigjoiner

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commit dcd8992e47f13afb5c11a61e8d9c141c35e23751 upstream.

All joined pipes share the same transcoder/timing generator.
Currently we just do the commits per-pipe, which doesn't really
work if we need to change switch between non-VRR and VRR timings
generators on the fly, or even when sending the push to the
transcoder. For now just disable VRR when bigjoiner is needed.

Cc: stable@vger.kernel.org
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404213441.17637-6-ville.syrjala@linux.intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit f9d5e51db65652dbd8a2102fd7619440e3599fd2)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ville Syrjälä
2024-04-05 00:34:29 +03:00
committed by Greg Kroah-Hartman
parent 62029bc9ff
commit 4b53d7d620
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/i915/display/intel_vrr.c
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@@ -110,6 +110,13 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
if (!intel_vrr_is_capable(connector)) if (!intel_vrr_is_capable(connector))
return; return;
/*
* FIXME all joined pipes share the same transcoder.
* Need to account for that during VRR toggle/push/etc.
*/
if (crtc_state->bigjoiner_pipes)
return;
if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
return; return;