By moving wm state verification to intel_pm.c, we can make a bunch of
functions static, hiding the wm details better. Also declutter
intel_display.c.

v2: intel_wm_state_verify -> intel_wm_verify_state (Ville)

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 122 +---------------
 drivers/gpu/drm/i915/intel_pm.c              | 138 +++++++++++++++++--
 drivers/gpu/drm/i915/intel_pm.h              |  14 +-
 3 files changed, 132 insertions(+), 142 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 7d9c8aeef686..9bb8ef39e01e 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -6424,126 +6424,6 @@ static void intel_pipe_config_sanity_check(struct 
drm_i915_private *dev_priv,
        }
 }
 
-static void verify_wm_state(struct intel_crtc *crtc,
-                           struct intel_crtc_state *new_crtc_state)
-{
-       struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-       struct skl_hw_state {
-               struct skl_ddb_entry ddb[I915_MAX_PLANES];
-               struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
-               struct skl_pipe_wm wm;
-       } *hw;
-       const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
-       int level, max_level = ilk_wm_max_level(dev_priv);
-       struct intel_plane *plane;
-       u8 hw_enabled_slices;
-
-       if (DISPLAY_VER(dev_priv) < 9 || !new_crtc_state->hw.active)
-               return;
-
-       hw = kzalloc(sizeof(*hw), GFP_KERNEL);
-       if (!hw)
-               return;
-
-       skl_pipe_wm_get_hw_state(crtc, &hw->wm);
-
-       skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
-
-       hw_enabled_slices = intel_enabled_dbuf_slices_mask(dev_priv);
-
-       if (DISPLAY_VER(dev_priv) >= 11 &&
-           hw_enabled_slices != dev_priv->dbuf.enabled_slices)
-               drm_err(&dev_priv->drm,
-                       "mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
-                       dev_priv->dbuf.enabled_slices,
-                       hw_enabled_slices);
-
-       for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
-               const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
-               const struct skl_wm_level *hw_wm_level, *sw_wm_level;
-
-               /* Watermarks */
-               for (level = 0; level <= max_level; level++) {
-                       hw_wm_level = &hw->wm.planes[plane->id].wm[level];
-                       sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, 
level);
-
-                       if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
-                               continue;
-
-                       drm_err(&dev_priv->drm,
-                               "[PLANE:%d:%s] mismatch in WM%d (expected e=%d 
b=%u l=%u, got e=%d b=%u l=%u)\n",
-                               plane->base.base.id, plane->base.name, level,
-                               sw_wm_level->enable,
-                               sw_wm_level->blocks,
-                               sw_wm_level->lines,
-                               hw_wm_level->enable,
-                               hw_wm_level->blocks,
-                               hw_wm_level->lines);
-               }
-
-               hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
-               sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
-
-               if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-                       drm_err(&dev_priv->drm,
-                               "[PLANE:%d:%s] mismatch in trans WM (expected 
e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-                               plane->base.base.id, plane->base.name,
-                               sw_wm_level->enable,
-                               sw_wm_level->blocks,
-                               sw_wm_level->lines,
-                               hw_wm_level->enable,
-                               hw_wm_level->blocks,
-                               hw_wm_level->lines);
-               }
-
-               hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
-               sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
-
-               if (HAS_HW_SAGV_WM(dev_priv) &&
-                   !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-                       drm_err(&dev_priv->drm,
-                               "[PLANE:%d:%s] mismatch in SAGV WM (expected 
e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-                               plane->base.base.id, plane->base.name,
-                               sw_wm_level->enable,
-                               sw_wm_level->blocks,
-                               sw_wm_level->lines,
-                               hw_wm_level->enable,
-                               hw_wm_level->blocks,
-                               hw_wm_level->lines);
-               }
-
-               hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
-               sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
-
-               if (HAS_HW_SAGV_WM(dev_priv) &&
-                   !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
-                       drm_err(&dev_priv->drm,
-                               "[PLANE:%d:%s] mismatch in SAGV trans WM 
(expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
-                               plane->base.base.id, plane->base.name,
-                               sw_wm_level->enable,
-                               sw_wm_level->blocks,
-                               sw_wm_level->lines,
-                               hw_wm_level->enable,
-                               hw_wm_level->blocks,
-                               hw_wm_level->lines);
-               }
-
-               /* DDB */
-               hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
-               sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
-
-               if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
-                       drm_err(&dev_priv->drm,
-                               "[PLANE:%d:%s] mismatch in DDB (expected 
(%u,%u), found (%u,%u))\n",
-                               plane->base.base.id, plane->base.name,
-                               sw_ddb_entry->start, sw_ddb_entry->end,
-                               hw_ddb_entry->start, hw_ddb_entry->end);
-               }
-       }
-
-       kfree(hw);
-}
-
 static void
 verify_connector_state(struct intel_atomic_state *state,
                       struct intel_crtc *crtc)
@@ -6836,7 +6716,7 @@ intel_modeset_verify_crtc(struct intel_crtc *crtc,
        if (!intel_crtc_needs_modeset(new_crtc_state) && 
!new_crtc_state->update_pipe)
                return;
 
-       verify_wm_state(crtc, new_crtc_state);
+       intel_wm_state_verify(crtc, new_crtc_state);
        verify_connector_state(state, crtc);
        verify_crtc_state(crtc, old_crtc_state, new_crtc_state);
        verify_shared_dpll_state(crtc, old_crtc_state, new_crtc_state);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5a61fc3f26c1..174fab564d10 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4368,9 +4368,9 @@ skl_ddb_get_hw_plane_state(struct drm_i915_private 
*dev_priv,
        skl_ddb_entry_init_from_hw(ddb_y, val);
 }
 
-void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
-                              struct skl_ddb_entry *ddb,
-                              struct skl_ddb_entry *ddb_y)
+static void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
+                                     struct skl_ddb_entry *ddb,
+                                     struct skl_ddb_entry *ddb_y)
 {
        struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
        enum intel_display_power_domain power_domain;
@@ -4950,7 +4950,7 @@ skl_total_relative_data_rate(const struct 
intel_crtc_state *crtc_state)
        return data_rate;
 }
 
-const struct skl_wm_level *
+static const struct skl_wm_level *
 skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
                   enum plane_id plane_id,
                   int level)
@@ -4963,7 +4963,7 @@ skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
        return &wm->wm[level];
 }
 
-const struct skl_wm_level *
+static const struct skl_wm_level *
 skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
                   enum plane_id plane_id)
 {
@@ -5915,8 +5915,8 @@ void skl_write_cursor_wm(struct intel_plane *plane,
        skl_ddb_entry_write(dev_priv, CUR_BUF_CFG(pipe), ddb);
 }
 
-bool skl_wm_level_equals(const struct skl_wm_level *l1,
-                        const struct skl_wm_level *l2)
+static bool skl_wm_level_equals(const struct skl_wm_level *l1,
+                               const struct skl_wm_level *l2)
 {
        return l1->enable == l2->enable &&
                l1->ignore_lines == l2->ignore_lines &&
@@ -6488,8 +6488,8 @@ static void skl_wm_level_from_reg_val(u32 val, struct 
skl_wm_level *level)
        level->lines = REG_FIELD_GET(PLANE_WM_LINES_MASK, val);
 }
 
-void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
-                             struct skl_pipe_wm *out)
+static void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
+                                    struct skl_pipe_wm *out)
 {
        struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
        enum pipe pipe = crtc->pipe;
@@ -7166,6 +7166,126 @@ void ilk_wm_get_hw_state(struct drm_i915_private 
*dev_priv)
                !(intel_uncore_read(&dev_priv->uncore, DISP_ARB_CTL) & 
DISP_FBC_WM_DIS);
 }
 
+void intel_wm_state_verify(struct intel_crtc *crtc,
+                          struct intel_crtc_state *new_crtc_state)
+{
+       struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+       struct skl_hw_state {
+               struct skl_ddb_entry ddb[I915_MAX_PLANES];
+               struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
+               struct skl_pipe_wm wm;
+       } *hw;
+       const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
+       int level, max_level = ilk_wm_max_level(dev_priv);
+       struct intel_plane *plane;
+       u8 hw_enabled_slices;
+
+       if (DISPLAY_VER(dev_priv) < 9 || !new_crtc_state->hw.active)
+               return;
+
+       hw = kzalloc(sizeof(*hw), GFP_KERNEL);
+       if (!hw)
+               return;
+
+       skl_pipe_wm_get_hw_state(crtc, &hw->wm);
+
+       skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
+
+       hw_enabled_slices = intel_enabled_dbuf_slices_mask(dev_priv);
+
+       if (DISPLAY_VER(dev_priv) >= 11 &&
+           hw_enabled_slices != dev_priv->dbuf.enabled_slices)
+               drm_err(&dev_priv->drm,
+                       "mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
+                       dev_priv->dbuf.enabled_slices,
+                       hw_enabled_slices);
+
+       for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
+               const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
+               const struct skl_wm_level *hw_wm_level, *sw_wm_level;
+
+               /* Watermarks */
+               for (level = 0; level <= max_level; level++) {
+                       hw_wm_level = &hw->wm.planes[plane->id].wm[level];
+                       sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, 
level);
+
+                       if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
+                               continue;
+
+                       drm_err(&dev_priv->drm,
+                               "[PLANE:%d:%s] mismatch in WM%d (expected e=%d 
b=%u l=%u, got e=%d b=%u l=%u)\n",
+                               plane->base.base.id, plane->base.name, level,
+                               sw_wm_level->enable,
+                               sw_wm_level->blocks,
+                               sw_wm_level->lines,
+                               hw_wm_level->enable,
+                               hw_wm_level->blocks,
+                               hw_wm_level->lines);
+               }
+
+               hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
+               sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
+
+               if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+                       drm_err(&dev_priv->drm,
+                               "[PLANE:%d:%s] mismatch in trans WM (expected 
e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+                               plane->base.base.id, plane->base.name,
+                               sw_wm_level->enable,
+                               sw_wm_level->blocks,
+                               sw_wm_level->lines,
+                               hw_wm_level->enable,
+                               hw_wm_level->blocks,
+                               hw_wm_level->lines);
+               }
+
+               hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
+               sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
+
+               if (HAS_HW_SAGV_WM(dev_priv) &&
+                   !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+                       drm_err(&dev_priv->drm,
+                               "[PLANE:%d:%s] mismatch in SAGV WM (expected 
e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+                               plane->base.base.id, plane->base.name,
+                               sw_wm_level->enable,
+                               sw_wm_level->blocks,
+                               sw_wm_level->lines,
+                               hw_wm_level->enable,
+                               hw_wm_level->blocks,
+                               hw_wm_level->lines);
+               }
+
+               hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
+               sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
+
+               if (HAS_HW_SAGV_WM(dev_priv) &&
+                   !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+                       drm_err(&dev_priv->drm,
+                               "[PLANE:%d:%s] mismatch in SAGV trans WM 
(expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+                               plane->base.base.id, plane->base.name,
+                               sw_wm_level->enable,
+                               sw_wm_level->blocks,
+                               sw_wm_level->lines,
+                               hw_wm_level->enable,
+                               hw_wm_level->blocks,
+                               hw_wm_level->lines);
+               }
+
+               /* DDB */
+               hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
+               sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
+
+               if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
+                       drm_err(&dev_priv->drm,
+                               "[PLANE:%d:%s] mismatch in DDB (expected 
(%u,%u), found (%u,%u))\n",
+                               plane->base.base.id, plane->base.name,
+                               sw_ddb_entry->start, sw_ddb_entry->end,
+                               hw_ddb_entry->start, hw_ddb_entry->end);
+               }
+       }
+
+       kfree(hw);
+}
+
 void intel_enable_ipc(struct drm_i915_private *dev_priv)
 {
        u32 val;
diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index 50604cf7398c..945503ae493e 100644
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -35,15 +35,12 @@ void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
 void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
+void intel_wm_state_verify(struct intel_crtc *crtc,
+                          struct intel_crtc_state *new_crtc_state);
 u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *dev_priv);
-void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
-                              struct skl_ddb_entry *ddb_y,
-                              struct skl_ddb_entry *ddb_uv);
 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
 u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
                            const struct skl_ddb_entry *entry);
-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);
 void skl_wm_sanitize(struct drm_i915_private *dev_priv);
@@ -51,13 +48,6 @@ bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
                           const struct intel_bw_state *bw_state);
 void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
 void intel_sagv_post_plane_update(struct intel_atomic_state *state);
-const struct skl_wm_level *skl_plane_wm_level(const struct skl_pipe_wm 
*pipe_wm,
-                                             enum plane_id plane_id,
-                                             int level);
-const struct skl_wm_level *skl_plane_trans_wm(const struct skl_pipe_wm 
*pipe_wm,
-                                             enum plane_id plane_id);
-bool skl_wm_level_equals(const struct skl_wm_level *l1,
-                        const struct skl_wm_level *l2);
 bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
                                 const struct skl_ddb_entry *entries,
                                 int num_entries, int ignore_idx);
-- 
2.30.2

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