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drm/i915/fbc: Clear frontbuffer busy bits on flip

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We are planning to move flush performed from work queue. This
means it is possible to have invalidate -> flip -> flush sequence.
Handle this by clearing possible busy bits on flip.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901093500.3463046-2-jouni.hogander@intel.com
This commit is contained in:
Jouni Högander
2023-09-01 12:34:57 +03:00
parent f208f4a49a
commit 4f89df198d
1 changed files with 2 additions and 4 deletions
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drivers/gpu/drm/i915/display/intel_fbc.c
+2 -4
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@@ -1307,11 +1307,9 @@ static void __intel_fbc_post_update(struct intel_fbc *fbc)
lockdep_assert_held(&fbc->lock);
fbc->flip_pending = false;
fbc->busy_bits = 0;
if (!fbc->busy_bits)
intel_fbc_activate(fbc);
else
intel_fbc_deactivate(fbc, "frontbuffer write");
intel_fbc_activate(fbc);
}
void intel_fbc_post_update(struct intel_atomic_state *state,