[Intel-gfx] [PATCH 06/19] drm/i915: Extract intel_modeset_calc_cdclk()
Ville Syrjala
ville.syrjala at linux.intel.com
Mon Jul 8 12:53:12 UTC 2019
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Exfiltrate the cdclk code from intel_modeset_checks() into
intel_modeset_calc_cdclk().
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_cdclk.c | 135 ++++++++++++++++++-
drivers/gpu/drm/i915/display/intel_cdclk.h | 6 +-
drivers/gpu/drm/i915/display/intel_display.c | 119 +---------------
3 files changed, 135 insertions(+), 125 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 0b8b8ae3b7fc..c7c46b382738 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -21,6 +21,7 @@
* DEALINGS IN THE SOFTWARE.
*/
+#include "intel_atomic.h"
#include "intel_cdclk.h"
#include "intel_drv.h"
#include "intel_sideband.h"
@@ -2081,9 +2082,9 @@ bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
* Returns:
* True if the CDCLK states require just a cd2x divider update, false if not.
*/
-bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
- const struct intel_cdclk_state *a,
- const struct intel_cdclk_state *b)
+static bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
+ const struct intel_cdclk_state *a,
+ const struct intel_cdclk_state *b)
{
/* Older hw doesn't have the capability */
if (INTEL_GEN(dev_priv) < 10 && !IS_GEN9_LP(dev_priv))
@@ -2102,8 +2103,8 @@ bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
* Returns:
* True if the CDCLK states don't match, false if they do.
*/
-bool intel_cdclk_changed(const struct intel_cdclk_state *a,
- const struct intel_cdclk_state *b)
+static bool intel_cdclk_changed(const struct intel_cdclk_state *a,
+ const struct intel_cdclk_state *b)
{
return intel_cdclk_needs_modeset(a, b) ||
a->voltage_level != b->voltage_level;
@@ -2556,6 +2557,62 @@ static int cnl_modeset_calc_cdclk(struct intel_atomic_state *state)
return 0;
}
+static int intel_lock_all_pipes(struct intel_atomic_state *state)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct intel_crtc *crtc;
+
+ /* Add all pipes to the state */
+ for_each_intel_crtc(&dev_priv->drm, crtc) {
+ struct intel_crtc_state *crtc_state;
+
+ crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+ }
+
+ return 0;
+}
+
+static int intel_modeset_all_pipes(struct intel_atomic_state *state)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct intel_crtc *crtc;
+
+ /*
+ * Add all pipes to the state, and force
+ * a modeset on all the active ones.
+ */
+ for_each_intel_crtc(&dev_priv->drm, crtc) {
+ struct intel_crtc_state *crtc_state;
+ int ret;
+
+ crtc_state = intel_atomic_get_crtc_state(&state->base, crtc);
+ if (IS_ERR(crtc_state))
+ return PTR_ERR(crtc_state);
+
+ if (!crtc_state->base.active ||
+ drm_atomic_crtc_needs_modeset(&crtc_state->base))
+ continue;
+
+ crtc_state->base.mode_changed = true;
+
+ ret = drm_atomic_add_affected_connectors(&state->base,
+ &crtc->base);
+ if (ret)
+ return ret;
+
+ ret = drm_atomic_add_affected_planes(&state->base,
+ &crtc->base);
+ if (ret)
+ return ret;
+
+ crtc_state->update_planes |= crtc_state->active_planes;
+ }
+
+ return 0;
+}
+
static int icl_modeset_calc_cdclk(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
@@ -2590,6 +2647,74 @@ static int icl_modeset_calc_cdclk(struct intel_atomic_state *state)
return 0;
}
+int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ enum pipe pipe;
+ int ret;
+
+ if (!dev_priv->display.modeset_calc_cdclk)
+ return 0;
+
+ ret = dev_priv->display.modeset_calc_cdclk(state);
+ if (ret)
+ return ret;
+
+ /*
+ * Writes to dev_priv->cdclk.logical must protected by
+ * holding all the crtc locks, even if we don't end up
+ * touching the hardware
+ */
+ if (intel_cdclk_changed(&dev_priv->cdclk.logical,
+ &state->cdclk.logical)) {
+ ret = intel_lock_all_pipes(state);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (is_power_of_2(state->active_crtcs)) {
+ struct intel_crtc *crtc;
+ struct intel_crtc_state *crtc_state;
+
+ pipe = ilog2(state->active_crtcs);
+ crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
+ crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
+ if (crtc_state &&
+ drm_atomic_crtc_needs_modeset(&crtc_state->base))
+ pipe = INVALID_PIPE;
+ } else {
+ pipe = INVALID_PIPE;
+ }
+
+ /* All pipes must be switched off while we change the cdclk. */
+ if (pipe != INVALID_PIPE &&
+ intel_cdclk_needs_cd2x_update(dev_priv,
+ &dev_priv->cdclk.actual,
+ &state->cdclk.actual)) {
+ ret = intel_lock_all_pipes(state);
+ if (ret)
+ return ret;
+
+ state->cdclk.pipe = pipe;
+ } else if (intel_cdclk_needs_modeset(&dev_priv->cdclk.actual,
+ &state->cdclk.actual)) {
+ ret = intel_modeset_all_pipes(state);
+ if (ret)
+ return ret;
+
+ state->cdclk.pipe = INVALID_PIPE;
+ }
+
+ DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
+ state->cdclk.logical.cdclk,
+ state->cdclk.actual.cdclk);
+ DRM_DEBUG_KMS("New voltage level calculated to be logical %u, actual %u\n",
+ state->cdclk.logical.voltage_level,
+ state->cdclk.actual.voltage_level);
+
+ return 0;
+}
+
static int intel_compute_max_dotclk(struct drm_i915_private *dev_priv)
{
int max_cdclk_freq = dev_priv->max_cdclk_freq;
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.h b/drivers/gpu/drm/i915/display/intel_cdclk.h
index 4d6f7f5f8930..b3968fc76d0c 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.h
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.h
@@ -22,13 +22,8 @@ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv);
void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
void intel_update_cdclk(struct drm_i915_private *dev_priv);
void intel_update_rawclk(struct drm_i915_private *dev_priv);
-bool intel_cdclk_needs_cd2x_update(struct drm_i915_private *dev_priv,
- const struct intel_cdclk_state *a,
- const struct intel_cdclk_state *b);
bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
const struct intel_cdclk_state *b);
-bool intel_cdclk_changed(const struct intel_cdclk_state *a,
- const struct intel_cdclk_state *b);
void intel_cdclk_swap_state(struct intel_atomic_state *state);
void
intel_set_cdclk_pre_plane_update(struct drm_i915_private *dev_priv,
@@ -42,5 +37,6 @@ intel_set_cdclk_post_plane_update(struct drm_i915_private *dev_priv,
enum pipe pipe);
void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
const char *context);
+int intel_modeset_calc_cdclk(struct intel_atomic_state *state);
#endif /* __INTEL_CDCLK_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2b8a6a84605c..3efe76c2ec33 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13374,61 +13374,12 @@ static int haswell_mode_set_planes_workaround(struct intel_atomic_state *state)
return 0;
}
-static int intel_lock_all_pipes(struct drm_atomic_state *state)
-{
- struct drm_crtc *crtc;
-
- /* Add all pipes to the state */
- for_each_crtc(state->dev, crtc) {
- struct drm_crtc_state *crtc_state;
-
- crtc_state = drm_atomic_get_crtc_state(state, crtc);
- if (IS_ERR(crtc_state))
- return PTR_ERR(crtc_state);
- }
-
- return 0;
-}
-
-static int intel_modeset_all_pipes(struct drm_atomic_state *state)
-{
- struct drm_crtc *crtc;
-
- /*
- * Add all pipes to the state, and force
- * a modeset on all the active ones.
- */
- for_each_crtc(state->dev, crtc) {
- struct drm_crtc_state *crtc_state;
- int ret;
-
- crtc_state = drm_atomic_get_crtc_state(state, crtc);
- if (IS_ERR(crtc_state))
- return PTR_ERR(crtc_state);
-
- if (!crtc_state->active || needs_modeset(to_intel_crtc_state(crtc_state)))
- continue;
-
- crtc_state->mode_changed = true;
-
- ret = drm_atomic_add_affected_connectors(state, crtc);
- if (ret)
- return ret;
-
- ret = drm_atomic_add_affected_planes(state, crtc);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
static int intel_modeset_checks(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
struct intel_crtc_state *old_crtc_state, *new_crtc_state;
struct intel_crtc *crtc;
- int ret = 0, i;
+ int ret, i;
if (!check_digital_port_conflicts(state)) {
DRM_DEBUG_KMS("rejecting conflicting digital port configuration\n");
@@ -13456,71 +13407,9 @@ static int intel_modeset_checks(struct intel_atomic_state *state)
state->active_pipe_changes |= drm_crtc_mask(&crtc->base);
}
- /*
- * See if the config requires any additional preparation, e.g.
- * to adjust global state with pipes off. We need to do this
- * here so we can get the modeset_pipe updated config for the new
- * mode set on this crtc. For other crtcs we need to use the
- * adjusted_mode bits in the crtc directly.
- */
- if (dev_priv->display.modeset_calc_cdclk) {
- enum pipe pipe;
-
- ret = dev_priv->display.modeset_calc_cdclk(state);
- if (ret < 0)
- return ret;
-
- /*
- * Writes to dev_priv->cdclk.logical must protected by
- * holding all the crtc locks, even if we don't end up
- * touching the hardware
- */
- if (intel_cdclk_changed(&dev_priv->cdclk.logical,
- &state->cdclk.logical)) {
- ret = intel_lock_all_pipes(&state->base);
- if (ret < 0)
- return ret;
- }
-
- if (is_power_of_2(state->active_crtcs)) {
- struct intel_crtc *crtc;
- struct intel_crtc_state *crtc_state;
-
- pipe = ilog2(state->active_crtcs);
- crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
- crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
- if (crtc_state && needs_modeset(crtc_state))
- pipe = INVALID_PIPE;
- } else {
- pipe = INVALID_PIPE;
- }
-
- /* All pipes must be switched off while we change the cdclk. */
- if (pipe != INVALID_PIPE &&
- intel_cdclk_needs_cd2x_update(dev_priv,
- &dev_priv->cdclk.actual,
- &state->cdclk.actual)) {
- ret = intel_lock_all_pipes(&state->base);
- if (ret < 0)
- return ret;
-
- state->cdclk.pipe = pipe;
- } else if (intel_cdclk_needs_modeset(&dev_priv->cdclk.actual,
- &state->cdclk.actual)) {
- ret = intel_modeset_all_pipes(&state->base);
- if (ret < 0)
- return ret;
-
- state->cdclk.pipe = INVALID_PIPE;
- }
-
- DRM_DEBUG_KMS("New cdclk calculated to be logical %u kHz, actual %u kHz\n",
- state->cdclk.logical.cdclk,
- state->cdclk.actual.cdclk);
- DRM_DEBUG_KMS("New voltage level calculated to be logical %u, actual %u\n",
- state->cdclk.logical.voltage_level,
- state->cdclk.actual.voltage_level);
- }
+ ret = intel_modeset_calc_cdclk(state);
+ if (ret)
+ return ret;
intel_modeset_clear_plls(state);
--
2.21.0
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