Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/i915/alpm: Disable LOBF around transitioning for LRR/seamless MN
When enabling LRR/seamless MN disable LOBF first and re-enable
afterwards.
- pre_plane_update: if LOBF was enabled, disable LOBF before the
update_lrr/update_m_n transition.
- post_plane_update: Re-enable LOBF after the transition.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Michał Grzelak <michal.grzelak@intel.com>
Link: https://patch.msgid.link/20260204050250.762718-6-ankit.k.nautiyal@intel.com
+6
-2
+6
-2
drivers/gpu/drm/i915/display/intel_display.c
+6
-2
drivers/gpu/drm/i915/display/intel_display.c
···
1014
1014
if (!new_crtc_state->hw.active)
1015
1015
return false;
1016
1016
1017
-
return is_enabling(has_lobf, old_crtc_state, new_crtc_state);
1017
+
return is_enabling(has_lobf, old_crtc_state, new_crtc_state) ||
1018
+
(new_crtc_state->has_lobf &&
1019
+
(new_crtc_state->update_lrr || new_crtc_state->update_m_n));
1018
1020
}
1019
1021
1020
1022
static bool intel_crtc_lobf_disabling(const struct intel_crtc_state *old_crtc_state,
···
1025
1023
if (!old_crtc_state->hw.active)
1026
1024
return false;
1027
1025
1028
-
return is_disabling(has_lobf, old_crtc_state, new_crtc_state);
1026
+
return is_disabling(has_lobf, old_crtc_state, new_crtc_state) ||
1027
+
(old_crtc_state->has_lobf &&
1028
+
(new_crtc_state->update_lrr || new_crtc_state->update_m_n));
1029
1029
}
1030
1030
1031
1031
#undef is_disabling