From: Ville Syrjälä <ville.syrj...@linux.intel.com>

To further reduce the confusion between the pre-icl vs. icl+
SAGV codepaths let's do a full split.

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 120 ++++++++++++++++++++------------
 1 file changed, 77 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index d0fcc4586983..bf8cf71f5b07 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3782,34 +3782,44 @@ intel_disable_sagv(struct drm_i915_private *dev_priv)
        return 0;
 }
 
-void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
+static void skl_sagv_pre_plane_update(struct intel_atomic_state *state)
+{
+       struct drm_i915_private *i915 = to_i915(state->base.dev);
+       const struct intel_bw_state *new_bw_state =
+               intel_atomic_get_new_bw_state(state);
+
+       if (!new_bw_state)
+               return;
+
+       if (!intel_can_enable_sagv(i915, new_bw_state))
+               intel_disable_sagv(i915);
+}
+
+static void skl_sagv_post_plane_update(struct intel_atomic_state *state)
+{
+       struct drm_i915_private *i915 = to_i915(state->base.dev);
+       const struct intel_bw_state *new_bw_state =
+               intel_atomic_get_new_bw_state(state);
+
+       if (!new_bw_state)
+               return;
+
+       if (intel_can_enable_sagv(i915, new_bw_state))
+               intel_enable_sagv(i915);
+}
+
+static void icl_sagv_pre_plane_update(struct intel_atomic_state *state)
 {
        struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-       const struct intel_bw_state *new_bw_state;
-       const struct intel_bw_state *old_bw_state;
-       u32 new_mask = 0;
+       const struct intel_bw_state *old_bw_state =
+               intel_atomic_get_old_bw_state(state);
+       const struct intel_bw_state *new_bw_state =
+               intel_atomic_get_new_bw_state(state);
+       u32 new_mask;
 
-       /*
-        * Just return if we can't control SAGV or don't have it.
-        * This is different from situation when we have SAGV but just can't
-        * afford it due to DBuf limitation - in case if SAGV is completely
-        * disabled in a BIOS, we are not even allowed to send a PCode request,
-        * as it will throw an error. So have to check it here.
-        */
-       if (!intel_has_sagv(dev_priv))
-               return;
-
-       new_bw_state = intel_atomic_get_new_bw_state(state);
        if (!new_bw_state)
                return;
 
-       if (DISPLAY_VER(dev_priv) < 11) {
-               if (!intel_can_enable_sagv(dev_priv, new_bw_state))
-                       intel_disable_sagv(dev_priv);
-               return;
-       }
-
-       old_bw_state = intel_atomic_get_old_bw_state(state);
        /*
         * Nothing to mask
         */
@@ -3834,34 +3844,18 @@ void intel_sagv_pre_plane_update(struct 
intel_atomic_state *state)
        icl_pcode_restrict_qgv_points(dev_priv, new_mask);
 }
 
-void intel_sagv_post_plane_update(struct intel_atomic_state *state)
+static void icl_sagv_post_plane_update(struct intel_atomic_state *state)
 {
        struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-       const struct intel_bw_state *new_bw_state;
-       const struct intel_bw_state *old_bw_state;
+       const struct intel_bw_state *old_bw_state =
+               intel_atomic_get_old_bw_state(state);
+       const struct intel_bw_state *new_bw_state =
+               intel_atomic_get_new_bw_state(state);
        u32 new_mask = 0;
 
-       /*
-        * Just return if we can't control SAGV or don't have it.
-        * This is different from situation when we have SAGV but just can't
-        * afford it due to DBuf limitation - in case if SAGV is completely
-        * disabled in a BIOS, we are not even allowed to send a PCode request,
-        * as it will throw an error. So have to check it here.
-        */
-       if (!intel_has_sagv(dev_priv))
-               return;
-
-       new_bw_state = intel_atomic_get_new_bw_state(state);
        if (!new_bw_state)
                return;
 
-       if (DISPLAY_VER(dev_priv) < 11) {
-               if (intel_can_enable_sagv(dev_priv, new_bw_state))
-                       intel_enable_sagv(dev_priv);
-               return;
-       }
-
-       old_bw_state = intel_atomic_get_old_bw_state(state);
        /*
         * Nothing to unmask
         */
@@ -3879,6 +3873,46 @@ void intel_sagv_post_plane_update(struct 
intel_atomic_state *state)
        icl_pcode_restrict_qgv_points(dev_priv, new_mask);
 }
 
+void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
+{
+       struct drm_i915_private *i915 = to_i915(state->base.dev);
+
+       /*
+        * Just return if we can't control SAGV or don't have it.
+        * This is different from situation when we have SAGV but just can't
+        * afford it due to DBuf limitation - in case if SAGV is completely
+        * disabled in a BIOS, we are not even allowed to send a PCode request,
+        * as it will throw an error. So have to check it here.
+        */
+       if (!intel_has_sagv(i915))
+               return;
+
+       if (DISPLAY_VER(i915) >= 11)
+               icl_sagv_pre_plane_update(state);
+       else
+               skl_sagv_pre_plane_update(state);
+}
+
+void intel_sagv_post_plane_update(struct intel_atomic_state *state)
+{
+       struct drm_i915_private *i915 = to_i915(state->base.dev);
+
+       /*
+        * Just return if we can't control SAGV or don't have it.
+        * This is different from situation when we have SAGV but just can't
+        * afford it due to DBuf limitation - in case if SAGV is completely
+        * disabled in a BIOS, we are not even allowed to send a PCode request,
+        * as it will throw an error. So have to check it here.
+        */
+       if (!intel_has_sagv(i915))
+               return;
+
+       if (DISPLAY_VER(i915) >= 11)
+               icl_sagv_post_plane_update(state);
+       else
+               skl_sagv_post_plane_update(state);
+}
+
 static bool skl_crtc_can_enable_sagv(const struct intel_crtc_state *crtc_state)
 {
        struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
-- 
2.34.1

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