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drm/i915/gen9: Add skl_wm_level_equals()

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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
This commit is contained in:
cpaul@redhat.com 2016-10-14 17:31:56 -04:00 committed by Paulo Zanoni
parent bf9d99ad17
commit 45ece23016
2 changed files with 16 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_drv.h
View File

@ -1769,6 +1769,8 @@ void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
bool intel_can_enable_sagv(struct drm_atomic_state *state);
int intel_enable_sagv(struct drm_i915_private *dev_priv);
int intel_disable_sagv(struct drm_i915_private *dev_priv);
bool skl_wm_level_equals(const struct skl_wm_level *l1,
const struct skl_wm_level *l2);
bool skl_ddb_allocation_equals(const struct skl_ddb_allocation *old,
const struct skl_ddb_allocation *new,
enum pipe pipe);

14
drivers/gpu/drm/i915/intel_pm.c
View File

@ -3886,6 +3886,20 @@ void skl_write_cursor_wm(struct intel_crtc *intel_crtc,
&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)
{