drm/i915/gen9: Add skl_wm_level_equals()
Helper we're going to be using for implementing verification of the wm
levels in skl_verify_wm_level().
Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476480722-13015-9-git-send-email-cpaul@redhat.com
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6527712..0a9e7f2 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3886,6 +3886,20 @@
&ddb->plane[pipe][PLANE_CURSOR]);
}
+bool skl_wm_level_equals(const struct skl_wm_level *l1,
+ const struct skl_wm_level *l2)
+{
+ if (l1->plane_en != l2->plane_en)
+ return false;
+
+ /* If both planes aren't enabled, the rest shouldn't matter */
+ if (!l1->plane_en)
+ return true;
+
+ return (l1->plane_res_l == l2->plane_res_l &&
+ l1->plane_res_b == l2->plane_res_b);
+}
+
static inline bool skl_ddb_entries_overlap(const struct skl_ddb_entry *a,
const struct skl_ddb_entry *b)
{