Commit f0dfaa98 authored by Ville Syrjälä's avatar Ville Syrjälä
Browse files

drm/i915: Check SAGV wm min_ddb_alloc rather than plane_res_b 



For non-transition watermarks we are supposed to check min_ddb_alloc
rather than plane_res_b when determining if we have enough DDB space
for it. A bit too much copy pasta made me check the wrong thing.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Fixes: df4a50a3 ("drm/i915: Zero out SAGV wm when we don't have enough DDB for it")
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210305153610.12177-4-ville.syrjala@linux.intel.com


Reviewed-by: default avatarStanislav Lisovskiy <stanislav.lisovskiy@intel.com>
parent cdf64625

drivers/gpu/drm/i915/intel_pm.c

+1 −1
Original line number Diff line number Diff line
@@ -4989,7 +4989,7 @@ skl_allocate_plane_ddb(struct intel_atomic_state *state, 
		if (wm->trans_wm.plane_res_b >= total[plane_id])

			memset(&wm->trans_wm, 0, sizeof(wm->trans_wm));



		if (wm->sagv.wm0.plane_res_b >= total[plane_id])

		if (wm->sagv.wm0.min_ddb_alloc > total[plane_id])

			memset(&wm->sagv.wm0, 0, sizeof(wm->sagv.wm0));



		if (wm->sagv.trans_wm.plane_res_b >= total[plane_id])