6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ville Syrjälä ville.syrjala@linux.intel.com
commit 88a173e5dd05e788068e8fa20a8c37c44bd8f416 upstream.
Currently async flips are busted when bigjoiner is in use. As a short term fix simply reject async flips in that case.
Cc: stable@vger.kernel.org Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9769 Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20231211081134.2698-1-ville.sy... Reviewed-by: Stanislav Lisovskiy stanislav.lisovskiy@intel.com (cherry picked from commit e93bffc2ac0a833b42841f31fff955549d38ce98) Signed-off-by: Jani Nikula jani.nikula@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/i915/display/intel_display.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5977,6 +5977,17 @@ static int intel_async_flip_check_hw(str return -EINVAL; }
+ /* + * FIXME: Bigjoiner+async flip is busted currently. + * Remove this check once the issues are fixed. + */ + if (new_crtc_state->bigjoiner_pipes) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] async flip disallowed with bigjoiner\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { if (plane->pipe != crtc->pipe)