[Intel-gfx] [PATCH CIv2 3/4] drm/i915/display: Add HAS_MBUS_JOINING

[José Roberto de Souza]

This will make easy to extend MBUS joining support to future platforms
that also supports this feature.

Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.so...@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h | 2 ++
 drivers/gpu/drm/i915/intel_pm.c | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 799f386a7ef25..0fc2c5cfa2c69 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1384,6 +1384,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 #define HAS_PERCTX_PREEMPT_CTRL(i915) \
        ((GRAPHICS_VER(i915) >= 9) &&  GRAPHICS_VER_FULL(i915) < IP_VER(12, 55))
 
+#define HAS_MBUS_JOINING(i915) (IS_ALDERLAKE_P(i915))
+
 #define HAS_D12_PLANE_MINIMIZATION(dev_priv) (IS_ROCKETLAKE(dev_priv) || \
                                              IS_ALDERLAKE_S(dev_priv))
 
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2c3cd4d775daf..e60c02d760ffa 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6038,7 +6038,7 @@ skl_compute_ddb(struct intel_atomic_state *state)
                        return ret;
        }
 
-       if (IS_ALDERLAKE_P(dev_priv))
+       if (HAS_MBUS_JOINING(dev_priv))
                new_dbuf_state->joined_mbus =
                        adlp_check_mbus_joined(new_dbuf_state->active_pipes);
 
@@ -6530,7 +6530,7 @@ void skl_wm_get_hw_state(struct drm_i915_private 
*dev_priv)
                to_intel_dbuf_state(dev_priv->dbuf.obj.state);
        struct intel_crtc *crtc;
 
-       if (IS_ALDERLAKE_P(dev_priv))
+       if (HAS_MBUS_JOINING(dev_priv))
                dbuf_state->joined_mbus = intel_de_read(dev_priv, MBUS_CTL) & 
MBUS_JOIN;
 
        for_each_intel_crtc(&dev_priv->drm, crtc) {
@@ -8192,7 +8192,7 @@ static void update_mbus_pre_enable(struct 
intel_atomic_state *state)
        const struct intel_dbuf_state *dbuf_state =
                intel_atomic_get_new_dbuf_state(state);
 
-       if (!IS_ALDERLAKE_P(dev_priv))
+       if (!HAS_MBUS_JOINING(dev_priv))
                return;
 
        /*
-- 
2.35.1