From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
With the cdclk state, all the .modeset_commit_cdclk() hooks are
now pointless wrappers. Let's replace them with just a .set_cdclk()
function pointer. However let's wrap that in a small helper that
does the state comparison and prints a unified debug message across
all platforms. We didn't even have the debug print on all platforms
previously. This reduces the clutter in intel_atomic_commit_tail() a
little bit.
v2: Wrap .set_cdclk() in intel_set_cdclk()
v3: Add kernel-docs
v4: Deal with IS_GEN9_BC()
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +-
drivers/gpu/drm/i915/intel_cdclk.c | 79 +++++++++++++++---------------------
drivers/gpu/drm/i915/intel_display.c | 5 +--
drivers/gpu/drm/i915/intel_drv.h | 2 +
4 files changed, 38 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 73881f8d3f4a..99b1ba412193 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -604,6 +604,8 @@ struct intel_cdclk_state;
struct drm_i915_display_funcs {
void (*get_cdclk)(struct drm_i915_private *dev_priv,
struct intel_cdclk_state *cdclk_state);
+ void (*set_cdclk)(struct drm_i915_private *dev_priv,
+ const struct intel_cdclk_state *cdclk_state);
int (*get_fifo_size)(struct drm_i915_private *dev_priv, int plane);
int (*compute_pipe_wm)(struct intel_crtc_state *cstate);
int (*compute_intermediate_wm)(struct drm_device *dev,
@@ -618,7 +620,6 @@ struct drm_i915_display_funcs {
int (*compute_global_watermarks)(struct drm_atomic_state *state);
void (*update_wm)(struct intel_crtc *crtc);
int (*modeset_calc_cdclk)(struct drm_atomic_state *state);
- void (*modeset_commit_cdclk)(struct drm_atomic_state *state);
/* Returns the active state of the crtc, and if the crtc is active,
* fills out the pipe-config with the hw state. */
bool (*get_pipe_config)(struct intel_crtc *,
diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c
index e4f04fb45cc8..4d85197e6f08 100644
--- a/drivers/gpu/drm/i915/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/intel_cdclk.c
@@ -883,9 +883,6 @@ static void skl_set_cdclk(struct drm_i915_private *dev_priv,
WARN_ON((cdclk == 24000) != (vco == 0));
- DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz (VCO %d kHz)\n",
- cdclk, vco);
-
mutex_lock(&dev_priv->rps.hw_lock);
ret = skl_pcode_request(dev_priv, SKL_PCODE_CDCLK_CONTROL,
SKL_CDCLK_PREPARE_FOR_CHANGE,
@@ -1202,9 +1199,6 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
u32 val, divider;
int ret;
- DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz (VCO %d kHz)\n",
- cdclk, vco);
-
/* cdclk = vco / 2 / div{1,1.5,2,4} */
switch (DIV_ROUND_CLOSEST(vco, cdclk)) {
case 8:
@@ -1390,6 +1384,30 @@ bool intel_cdclk_state_compare(const struct intel_cdclk_state *a,
return memcmp(a, b, sizeof(*a)) == 0;
}
+/**
+ * intel_set_cdclk - Push the CDCLK state to the hardware
+ * @dev_priv: i915 device
+ * @cdclk_state: new CDCLK state
+ *
+ * Program the hardware based on the passed in CDCLK state,
+ * if necessary.
+ */
+void intel_set_cdclk(struct drm_i915_private *dev_priv,
+ const struct intel_cdclk_state *cdclk_state)
+{
+ if (intel_cdclk_state_compare(&dev_priv->cdclk.hw, cdclk_state))
+ return;
+
+ if (WARN_ON_ONCE(!dev_priv->display.set_cdclk))
+ return;
+
+ DRM_DEBUG_DRIVER("Changing CDCLK to %d kHz, VCO %d kHz, ref %d kHz\n",
+ cdclk_state->cdclk, cdclk_state->vco,
+ cdclk_state->ref);
+
+ dev_priv->display.set_cdclk(dev_priv, cdclk_state);
+}
+
static int bdw_adjust_min_pipe_pixel_rate(struct intel_crtc_state *crtc_state,
int pixel_rate)
{
@@ -1484,16 +1502,6 @@ static int vlv_modeset_calc_cdclk(struct drm_atomic_state *state)
return 0;
}
-static void vlv_modeset_commit_cdclk(struct drm_atomic_state *old_state)
-{
- struct drm_i915_private *dev_priv = to_i915(old_state->dev);
-
- if (IS_CHERRYVIEW(dev_priv))
- chv_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
- else
- vlv_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
-}
-
static int bdw_modeset_calc_cdclk(struct drm_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->dev);
@@ -1527,13 +1535,6 @@ static int bdw_modeset_calc_cdclk(struct drm_atomic_state *state)
return 0;
}
-static void bdw_modeset_commit_cdclk(struct drm_atomic_state *old_state)
-{
- struct drm_i915_private *dev_priv = to_i915(old_state->dev);
-
- bdw_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
-}
-
static int skl_modeset_calc_cdclk(struct drm_atomic_state *state)
{
struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
@@ -1573,13 +1574,6 @@ static int skl_modeset_calc_cdclk(struct drm_atomic_state *state)
return 0;
}
-static void skl_modeset_commit_cdclk(struct drm_atomic_state *old_state)
-{
- struct drm_i915_private *dev_priv = to_i915(old_state->dev);
-
- skl_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
-}
-
static int bxt_modeset_calc_cdclk(struct drm_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->dev);
@@ -1624,13 +1618,6 @@ static int bxt_modeset_calc_cdclk(struct drm_atomic_state *state)
return 0;
}
-static void bxt_modeset_commit_cdclk(struct drm_atomic_state *old_state)
-{
- struct drm_i915_private *dev_priv = to_i915(old_state->dev);
-
- bxt_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
-}
-
static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv)
{
int max_cdclk_freq = dev_priv->max_cdclk_freq;
@@ -1810,24 +1797,24 @@ void intel_update_rawclk(struct drm_i915_private *dev_priv)
*/
void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv)
{
- if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
- dev_priv->display.modeset_commit_cdclk =
- vlv_modeset_commit_cdclk;
+ if (IS_CHERRYVIEW(dev_priv)) {
+ dev_priv->display.set_cdclk = chv_set_cdclk;
+ dev_priv->display.modeset_calc_cdclk =
+ vlv_modeset_calc_cdclk;
+ } else if (IS_VALLEYVIEW(dev_priv)) {
+ dev_priv->display.set_cdclk = vlv_set_cdclk;
dev_priv->display.modeset_calc_cdclk =
vlv_modeset_calc_cdclk;
} else if (IS_BROADWELL(dev_priv)) {
- dev_priv->display.modeset_commit_cdclk =
- bdw_modeset_commit_cdclk;
+ dev_priv->display.set_cdclk = bdw_set_cdclk;
dev_priv->display.modeset_calc_cdclk =
bdw_modeset_calc_cdclk;
} else if (IS_GEN9_LP(dev_priv)) {
- dev_priv->display.modeset_commit_cdclk =
- bxt_modeset_commit_cdclk;
+ dev_priv->display.set_cdclk = bxt_set_cdclk;
dev_priv->display.modeset_calc_cdclk =
bxt_modeset_calc_cdclk;
} else if (IS_GEN9_BC(dev_priv)) {
- dev_priv->display.modeset_commit_cdclk =
- skl_modeset_commit_cdclk;
+ dev_priv->display.set_cdclk = skl_set_cdclk;
dev_priv->display.modeset_calc_cdclk =
skl_modeset_calc_cdclk;
}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b379a29a297a..38979ce84ca5 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12837,10 +12837,7 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
if (intel_state->modeset) {
drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
- if (dev_priv->display.modeset_commit_cdclk &&
- !intel_cdclk_state_compare(&dev_priv->cdclk.hw,
- &dev_priv->cdclk.actual))
- dev_priv->display.modeset_commit_cdclk(state);
+ intel_set_cdclk(dev_priv, &dev_priv->cdclk.actual);
/*
* SKL workaround: bspec recommends we disable the SAGV when we
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3868695969fc..74361d0807e3 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1258,6 +1258,8 @@ void intel_update_cdclk(struct drm_i915_private *dev_priv);
void intel_update_rawclk(struct drm_i915_private *dev_priv);
bool intel_cdclk_state_compare(const struct intel_cdclk_state *a,
const struct intel_cdclk_state *b);
+void intel_set_cdclk(struct drm_i915_private *dev_priv,
+ const struct intel_cdclk_state *cdclk_state);
/* intel_display.c */
enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc);
--
2.10.2
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