drm/i915: Make active_pipes check skl specific

Seems that only skl needs to have SAGV turned off
for multipipe scenarios, so lets do it this way.

If anything blows up - we can always revert this patch.

v2: Changed if condition to look better (Ville).

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
[vsyrjala: wrapped long line to appease checkpatch]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200513093816.11466-4-stanislav.lisovskiy@intel.com

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3df8e60..f7bd1db 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3777,7 +3777,7 @@ void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
        if (!new_bw_state)
                return;
 
-       if (!intel_can_enable_sagv(new_bw_state))
+       if (!intel_can_enable_sagv(dev_priv, new_bw_state))
                intel_disable_sagv(dev_priv);
 }
 
@@ -3800,7 +3800,7 @@ void intel_sagv_post_plane_update(struct intel_atomic_state *state)
        if (!new_bw_state)
                return;
 
-       if (intel_can_enable_sagv(new_bw_state))
+       if (intel_can_enable_sagv(dev_priv, new_bw_state))
                intel_enable_sagv(dev_priv);
 }
 
@@ -3858,9 +3858,11 @@ static bool intel_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state
        return skl_crtc_can_enable_sagv(crtc_state);
 }
 
-bool intel_can_enable_sagv(const struct intel_bw_state *bw_state)
+bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
+                          const struct intel_bw_state *bw_state)
 {
-       if (bw_state->active_pipes && !is_power_of_2(bw_state->active_pipes))
+       if (INTEL_GEN(dev_priv) < 11 &&
+           bw_state->active_pipes && !is_power_of_2(bw_state->active_pipes))
                return false;
 
        return bw_state->pipe_sagv_reject == 0;
@@ -3868,6 +3870,7 @@ bool intel_can_enable_sagv(const struct intel_bw_state *bw_state)
 
 static int intel_compute_sagv_mask(struct intel_atomic_state *state)
 {
+       struct drm_i915_private *dev_priv = to_i915(state->base.dev);
        int ret;
        struct intel_crtc *crtc;
        const struct intel_crtc_state *new_crtc_state;
@@ -3901,7 +3904,8 @@ static int intel_compute_sagv_mask(struct intel_atomic_state *state)
                        return ret;
        }
 
-       if (intel_can_enable_sagv(new_bw_state) != intel_can_enable_sagv(old_bw_state)) {
+       if (intel_can_enable_sagv(dev_priv, new_bw_state) !=
+           intel_can_enable_sagv(dev_priv, old_bw_state)) {
                ret = intel_atomic_serialize_global_state(&new_bw_state->base);
                if (ret)
                        return ret;

diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index fd1dc42..614ac7f 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -42,7 +42,8 @@ void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
                              struct skl_pipe_wm *out);
 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
-bool intel_can_enable_sagv(const struct intel_bw_state *bw_state);
+bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
+                          const struct intel_bw_state *bw_state);
 int intel_enable_sagv(struct drm_i915_private *dev_priv);
 int intel_disable_sagv(struct drm_i915_private *dev_priv);
 void intel_sagv_pre_plane_update(struct intel_atomic_state *state);