[Intel-gfx] [PATCH 16/17] drm/i915: Convert cdclk to global state
Ville Syrjala
ville.syrjala at linux.intel.com
Mon Jan 20 17:47:27 UTC 2020
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Let's convert cdclk_state to be a proper global state. That allows
us to use the regular atomic old vs. new state accessor, hopefully
making the code less confusing.
We do have to deal with a few more error cases in case the cdclk
state duplication fails. But so be it.
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_atomic.c | 1 -
.../gpu/drm/i915/display/intel_atomic_plane.c | 68 ++++---
.../gpu/drm/i915/display/intel_atomic_plane.h | 5 +-
drivers/gpu/drm/i915/display/intel_audio.c | 39 +++-
drivers/gpu/drm/i915/display/intel_cdclk.c | 192 ++++++++++--------
drivers/gpu/drm/i915/display/intel_cdclk.h | 45 +++-
drivers/gpu/drm/i915/display/intel_display.c | 122 +++++++----
.../drm/i915/display/intel_display_types.h | 3 -
drivers/gpu/drm/i915/i915_drv.h | 45 +---
9 files changed, 316 insertions(+), 204 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index 45842ebcdebd..b51ddf9a250f 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -518,7 +518,6 @@ void intel_atomic_state_clear(struct drm_atomic_state *s)
state->dpll_set = state->modeset = false;
state->global_state_changed = false;
state->active_pipes = 0;
- intel_cdclk_clear_state(state);
}
struct intel_crtc_state *
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index 563caec1d201..1a0bbcf52516 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -37,6 +37,7 @@
#include "i915_trace.h"
#include "intel_atomic_plane.h"
+#include "intel_cdclk.h"
#include "intel_display_types.h"
#include "intel_pm.h"
#include "intel_sprite.h"
@@ -155,44 +156,61 @@ unsigned int intel_plane_data_rate(const struct intel_crtc_state *crtc_state,
return cpp * crtc_state->pixel_rate;
}
-bool intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
- struct intel_plane *plane)
+int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
+ struct intel_plane *plane,
+ bool *need_cdclk_calc)
{
- struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
- const struct intel_cdclk_state *cdclk_state =
- &dev_priv->cdclk_state;
const struct intel_plane_state *plane_state =
intel_atomic_get_new_plane_state(state, plane);
struct intel_crtc *crtc = to_intel_crtc(plane_state->hw.crtc);
- struct intel_crtc_state *crtc_state;
+ const struct intel_cdclk_state *cdclk_state;
+ struct intel_crtc_state *new_crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ const struct intel_crtc_state *old_crtc_state =
+ intel_atomic_get_old_crtc_state(state, crtc);
if (!plane_state->uapi.visible || !plane->min_cdclk)
- return false;
+ return 0;
+
+ new_crtc_state->min_cdclk[plane->id] =
+ plane->min_cdclk(new_crtc_state, plane_state);
- crtc_state = intel_atomic_get_new_crtc_state(state, crtc);
+ /*
+ * No need to check against the cdclk state if
+ * the min cdclk for the plane doesn't increase.
+ *
+ * Ie. we only ever increase the cdclk due to plane
+ * requirements. This can reduce back and forth
+ * display blinking due to constant cdclk changes.
+ */
+ if (new_crtc_state->min_cdclk[plane->id] <=
+ old_crtc_state->min_cdclk[plane->id])
+ return 0;
- crtc_state->min_cdclk[plane->id] =
- plane->min_cdclk(crtc_state, plane_state);
+ cdclk_state = intel_atomic_get_cdclk_state(state);
+ if (IS_ERR(cdclk_state))
+ return PTR_ERR(cdclk_state);
/*
- * Does the cdclk need to be bumbed up?
+ * No need to recalculate the cdclk state if
+ * the min cdclk for the pipe doesn't increase.
*
- * Note: we obviously need to be called before the new
- * cdclk frequency is calculated so state->cdclk.logical
- * hasn't been populated yet. Hence we look at the old
- * cdclk state under dev_priv->cdclk.logical. This is
- * safe as long we hold at least one crtc mutex (which
- * must be true since we have crtc_state).
+ * Ie. we only ever increase the cdclk due to plane
+ * requirements. This can reduce back and forth
+ * display blinking due to constant cdclk changes.
*/
- if (crtc_state->min_cdclk[plane->id] > cdclk_state->logical.cdclk) {
- DRM_DEBUG_KMS("[PLANE:%d:%s] min_cdclk (%d kHz) > logical cdclk (%d kHz)\n",
- plane->base.base.id, plane->base.name,
- crtc_state->min_cdclk[plane->id],
- cdclk_state->logical.cdclk);
- return true;
- }
+ if (cdclk_state->min_cdclk[crtc->pipe] <=
+ new_crtc_state->min_cdclk[plane->id])
+ return 0;
+
+ DRM_DEBUG_KMS("[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n",
+ plane->base.base.id, plane->base.name,
+ new_crtc_state->min_cdclk[plane->id],
+ crtc->base.base.id, crtc->base.name,
+ cdclk_state->min_cdclk[crtc->pipe]);
+ *need_cdclk_calc = true;
- return false;
+ return 0;
}
static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state)
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.h b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
index 5cedafdddb55..2bcf15e34728 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.h
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.h
@@ -46,7 +46,8 @@ int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_stat
struct intel_crtc_state *crtc_state,
const struct intel_plane_state *old_plane_state,
struct intel_plane_state *plane_state);
-bool intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
- struct intel_plane *plane);
+int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
+ struct intel_plane *plane,
+ bool *need_cdclk_calc);
#endif /* __INTEL_ATOMIC_PLANE_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index 12626fd94d29..9debac75eaec 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -30,6 +30,7 @@
#include "i915_drv.h"
#include "intel_atomic.h"
#include "intel_audio.h"
+#include "intel_cdclk.h"
#include "intel_display_types.h"
#include "intel_lpe_audio.h"
@@ -800,6 +801,34 @@ void intel_init_audio_hooks(struct drm_i915_private *dev_priv)
}
}
+static int glk_force_audio_cdclk_commit(struct intel_atomic_state *state,
+ bool enable)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct intel_cdclk_state *cdclk_state;
+ struct intel_crtc *crtc;
+ int ret;
+
+ /* need to hold at least one crtc lock for the global state */
+ crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_A);
+ ret = drm_modeset_lock(&crtc->base.mutex, state->base.acquire_ctx);
+ if (ret)
+ return ret;
+
+ cdclk_state = intel_atomic_get_cdclk_state(state);
+ if (IS_ERR(cdclk_state))
+ return PTR_ERR(cdclk_state);
+
+ cdclk_state->force_min_cdclk_changed = true;
+ cdclk_state->force_min_cdclk = enable ? 2 * 96000 : 0;
+
+ ret = intel_atomic_lock_global_state(&cdclk_state->base);
+ if (ret)
+ return ret;
+
+ return drm_atomic_commit(&state->base);
+}
+
static void glk_force_audio_cdclk(struct drm_i915_private *dev_priv,
bool enable)
{
@@ -815,15 +844,7 @@ static void glk_force_audio_cdclk(struct drm_i915_private *dev_priv,
state->acquire_ctx = &ctx;
retry:
- to_intel_atomic_state(state)->cdclk_state.force_min_cdclk_changed = true;
- to_intel_atomic_state(state)->cdclk_state.force_min_cdclk =
- enable ? 2 * 96000 : 0;
-
- /* Protects dev_priv->cdclk.force_min_cdclk */
- ret = _intel_atomic_lock_global_state(to_intel_atomic_state(state));
- if (!ret)
- ret = drm_atomic_commit(state);
-
+ ret = glk_force_audio_cdclk_commit(to_intel_atomic_state(state), enable);
if (ret == -EDEADLK) {
drm_atomic_state_clear(state);
drm_modeset_backoff(&ctx);
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 3b7932ae2a77..e14bda2bec71 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -1807,37 +1807,6 @@ static bool intel_cdclk_changed(const struct intel_cdclk_config *a,
a->voltage_level != b->voltage_level;
}
-/**
- * intel_cdclk_clear_state - clear the cdclk state
- * @state: atomic state
- *
- * Clear the cdclk state for ww_mutex backoff.
- */
-void intel_cdclk_clear_state(struct intel_atomic_state *state)
-{
- memset(&state->cdclk_state, 0, sizeof(state->cdclk_state));
- state->cdclk_state.pipe = INVALID_PIPE;
-}
-
-/**
- * intel_cdclk_swap_state - make atomic CDCLK configuration effective
- * @state: atomic state
- *
- * This is the CDCLK version of drm_atomic_helper_swap_state() since the
- * helper does not handle driver-specific global state.
- *
- * Similarly to the atomic helpers this function does a complete swap,
- * i.e. it also puts the old state into @state. This is used by the commit
- * code to determine how CDCLK has changed (for instance did it increase or
- * decrease).
- */
-void intel_cdclk_swap_state(struct intel_atomic_state *state)
-{
- struct drm_i915_private *dev_priv = to_i915(state->base.dev);
-
- swap(state->cdclk_state, dev_priv->cdclk_state);
-}
-
void intel_dump_cdclk_config(const struct intel_cdclk_config *cdclk_config,
const char *context)
{
@@ -1888,14 +1857,22 @@ void
intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- /* called after intel_cdclk_swap_state()! */
- const struct intel_cdclk_state *old_cdclk_state = &state->cdclk_state;
- const struct intel_cdclk_state *new_cdclk_state = &dev_priv->cdclk_state;
+ const struct intel_cdclk_state *old_cdclk_state =
+ intel_atomic_get_old_cdclk_state(state);
+ const struct intel_cdclk_state *new_cdclk_state =
+ intel_atomic_get_new_cdclk_state(state);
enum pipe pipe = new_cdclk_state->pipe;
+ if (!intel_cdclk_changed(&old_cdclk_state->actual,
+ &new_cdclk_state->actual))
+ return;
+
if (pipe == INVALID_PIPE ||
- old_cdclk_state->actual.cdclk <= new_cdclk_state->actual.cdclk)
+ old_cdclk_state->actual.cdclk <= new_cdclk_state->actual.cdclk) {
+ WARN_ON(!new_cdclk_state->base.changed);
+
intel_set_cdclk(dev_priv, &new_cdclk_state->actual, pipe);
+ }
}
/**
@@ -1909,14 +1886,22 @@ void
intel_set_cdclk_post_plane_update(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- /* called after intel_cdclk_swap_state()! */
- const struct intel_cdclk_state *old_cdclk_state = &state->cdclk_state;
- const struct intel_cdclk_state *new_cdclk_state = &dev_priv->cdclk_state;
+ const struct intel_cdclk_state *old_cdclk_state =
+ intel_atomic_get_old_cdclk_state(state);
+ const struct intel_cdclk_state *new_cdclk_state =
+ intel_atomic_get_new_cdclk_state(state);
enum pipe pipe = new_cdclk_state->pipe;
+ if (!intel_cdclk_changed(&old_cdclk_state->actual,
+ &new_cdclk_state->actual))
+ return;
+
if (pipe != INVALID_PIPE &&
- old_cdclk_state->actual.cdclk > new_cdclk_state->actual.cdclk)
+ old_cdclk_state->actual.cdclk > new_cdclk_state->actual.cdclk) {
+ WARN_ON(!new_cdclk_state->base.changed);
+
intel_set_cdclk(dev_priv, &new_cdclk_state->actual, pipe);
+ }
}
static int intel_pixel_rate_to_cdclk(const struct intel_crtc_state *crtc_state)
@@ -2042,10 +2027,10 @@ int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state)
return min_cdclk;
}
-static int intel_compute_min_cdclk(struct intel_atomic_state *state)
+static int intel_compute_min_cdclk(struct intel_cdclk_state *cdclk_state)
{
+ struct intel_atomic_state *state = cdclk_state->base.state;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
struct intel_crtc *crtc;
struct intel_crtc_state *crtc_state;
int min_cdclk, i;
@@ -2063,7 +2048,7 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
cdclk_state->min_cdclk[i] = min_cdclk;
- ret = _intel_atomic_lock_global_state(state);
+ ret = intel_atomic_lock_global_state(&cdclk_state->base);
if (ret)
return ret;
}
@@ -2088,10 +2073,10 @@ static int intel_compute_min_cdclk(struct intel_atomic_state *state)
* future platforms this code will need to be
* adjusted.
*/
-static int bxt_compute_min_voltage_level(struct intel_atomic_state *state)
+static int bxt_compute_min_voltage_level(struct intel_cdclk_state *cdclk_state)
{
+ struct intel_atomic_state *state = cdclk_state->base.state;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
struct intel_crtc *crtc;
struct intel_crtc_state *crtc_state;
u8 min_voltage_level;
@@ -2111,7 +2096,7 @@ static int bxt_compute_min_voltage_level(struct intel_atomic_state *state)
cdclk_state->min_voltage_level[i] = min_voltage_level;
- ret = _intel_atomic_lock_global_state(state);
+ ret = intel_atomic_lock_global_state(&cdclk_state->base);
if (ret)
return ret;
}
@@ -2124,13 +2109,13 @@ static int bxt_compute_min_voltage_level(struct intel_atomic_state *state)
return min_voltage_level;
}
-static int vlv_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int vlv_modeset_calc_cdclk(struct intel_cdclk_state *cdclk_state)
{
+ struct intel_atomic_state *state = cdclk_state->base.state;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
int min_cdclk, cdclk;
- min_cdclk = intel_compute_min_cdclk(state);
+ min_cdclk = intel_compute_min_cdclk(cdclk_state);
if (min_cdclk < 0)
return min_cdclk;
@@ -2153,12 +2138,12 @@ static int vlv_modeset_calc_cdclk(struct intel_atomic_state *state)
return 0;
}
-static int bdw_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int bdw_modeset_calc_cdclk(struct intel_cdclk_state *cdclk_state)
{
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
+ struct intel_atomic_state *state = cdclk_state->base.state;
int min_cdclk, cdclk;
- min_cdclk = intel_compute_min_cdclk(state);
+ min_cdclk = intel_compute_min_cdclk(cdclk_state);
if (min_cdclk < 0)
return min_cdclk;
@@ -2185,10 +2170,10 @@ static int bdw_modeset_calc_cdclk(struct intel_atomic_state *state)
return 0;
}
-static int skl_dpll0_vco(struct intel_atomic_state *state)
+static int skl_dpll0_vco(struct intel_cdclk_state *cdclk_state)
{
+ struct intel_atomic_state *state = cdclk_state->base.state;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
struct intel_crtc *crtc;
struct intel_crtc_state *crtc_state;
int vco, i;
@@ -2222,16 +2207,16 @@ static int skl_dpll0_vco(struct intel_atomic_state *state)
return vco;
}
-static int skl_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int skl_modeset_calc_cdclk(struct intel_cdclk_state *cdclk_state)
{
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
+ struct intel_atomic_state *state = cdclk_state->base.state;
int min_cdclk, cdclk, vco;
- min_cdclk = intel_compute_min_cdclk(state);
+ min_cdclk = intel_compute_min_cdclk(cdclk_state);
if (min_cdclk < 0)
return min_cdclk;
- vco = skl_dpll0_vco(state);
+ vco = skl_dpll0_vco(cdclk_state);
/*
* FIXME should also account for plane ratio
@@ -2258,17 +2243,17 @@ static int skl_modeset_calc_cdclk(struct intel_atomic_state *state)
return 0;
}
-static int bxt_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int bxt_modeset_calc_cdclk(struct intel_cdclk_state *cdclk_state)
{
+ struct intel_atomic_state *state = cdclk_state->base.state;
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_cdclk_state *cdclk_state = &state->cdclk_state;
int min_cdclk, min_voltage_level, cdclk, vco;
- min_cdclk = intel_compute_min_cdclk(state);
+ min_cdclk = intel_compute_min_cdclk(cdclk_state);
if (min_cdclk < 0)
return min_cdclk;
- min_voltage_level = bxt_compute_min_voltage_level(state);
+ min_voltage_level = bxt_compute_min_voltage_level(cdclk_state);
if (min_voltage_level < 0)
return min_voltage_level;
@@ -2335,7 +2320,7 @@ static int intel_modeset_all_pipes(struct intel_atomic_state *state)
return 0;
}
-static int fixed_modeset_calc_cdclk(struct intel_atomic_state *state)
+static int fixed_modeset_calc_cdclk(struct intel_cdclk_state *cdclk_state)
{
int min_cdclk;
@@ -2344,54 +2329,95 @@ static int fixed_modeset_calc_cdclk(struct intel_atomic_state *state)
* check that the required minimum frequency doesn't exceed
* the actual cdclk frequency.
*/
- min_cdclk = intel_compute_min_cdclk(state);
+ min_cdclk = intel_compute_min_cdclk(cdclk_state);
if (min_cdclk < 0)
return min_cdclk;
return 0;
}
+static struct intel_global_state *intel_cdclk_duplicate_state(struct intel_global_obj *obj)
+{
+ struct intel_cdclk_state *cdclk_state;
+
+ cdclk_state = kmemdup(obj->state, sizeof(*cdclk_state), GFP_KERNEL);
+ if (!cdclk_state)
+ return NULL;
+
+ cdclk_state->force_min_cdclk_changed = false;
+ cdclk_state->pipe = INVALID_PIPE;
+
+ return &cdclk_state->base;
+}
+
+static void intel_cdclk_destroy_state(struct intel_global_obj *obj,
+ struct intel_global_state *state)
+{
+ kfree(state);
+}
+
+static const struct intel_global_state_funcs intel_cdclk_funcs = {
+ .atomic_duplicate_state = intel_cdclk_duplicate_state,
+ .atomic_destroy_state = intel_cdclk_destroy_state,
+};
+
+struct intel_cdclk_state *
+intel_atomic_get_cdclk_state(struct intel_atomic_state *state)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->base.dev);
+ struct intel_global_state *cdclk_state;
+
+ cdclk_state = intel_atomic_get_global_obj_state(state, &dev_priv->cdclk.obj);
+ if (IS_ERR(cdclk_state))
+ return ERR_CAST(cdclk_state);
+
+ return to_intel_cdclk_state(cdclk_state);
+}
+
+int intel_cdclk_init(struct drm_i915_private *dev_priv)
+{
+ struct intel_cdclk_state *cdclk_state;
+
+ cdclk_state = kzalloc(sizeof(*cdclk_state), GFP_KERNEL);
+ if (!cdclk_state)
+ return -ENOMEM;
+
+ intel_atomic_global_obj_init(dev_priv, &dev_priv->cdclk.obj,
+ &cdclk_state->base, &intel_cdclk_funcs);
+
+ return 0;
+}
+
int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- const struct intel_cdclk_state *old_cdclk_state = &dev_priv->cdclk_state;
- struct intel_cdclk_state *new_cdclk_state = &state->cdclk_state;
+ const struct intel_cdclk_state *old_cdclk_state;
+ struct intel_cdclk_state *new_cdclk_state;
enum pipe pipe;
int ret;
- memcpy(new_cdclk_state->min_cdclk, old_cdclk_state->min_cdclk,
- sizeof(new_cdclk_state->min_cdclk));
- memcpy(new_cdclk_state->min_voltage_level, old_cdclk_state->min_voltage_level,
- sizeof(new_cdclk_state->min_voltage_level));
+ new_cdclk_state = intel_atomic_get_cdclk_state(state);
+ if (IS_ERR(new_cdclk_state))
+ return PTR_ERR(new_cdclk_state);
- /* keep the current setting */
- if (!new_cdclk_state->force_min_cdclk_changed)
- new_cdclk_state->force_min_cdclk = old_cdclk_state->force_min_cdclk;
+ old_cdclk_state = intel_atomic_get_old_cdclk_state(state);
- new_cdclk_state->logical = old_cdclk_state->logical;
- new_cdclk_state->actual = old_cdclk_state->actual;
-
- ret = dev_priv->display.modeset_calc_cdclk(state);
+ ret = dev_priv->display.modeset_calc_cdclk(new_cdclk_state);
if (ret)
return ret;
- /*
- * Writes to dev_priv->cdclk.{actual,logical} must protected
- * by holding all the crtc mutexes even if we don't end up
- * touching the hardware
- */
if (intel_cdclk_changed(&old_cdclk_state->actual,
&new_cdclk_state->actual)) {
/*
* Also serialize commits across all crtcs
* if the actual hw needs to be poked.
*/
- ret = _intel_atomic_serialize_global_state(state);
+ ret = intel_atomic_serialize_global_state(&new_cdclk_state->base);
if (ret)
return ret;
} else if (intel_cdclk_changed(&old_cdclk_state->logical,
&new_cdclk_state->logical)) {
- ret = _intel_atomic_lock_global_state(state);
+ ret = intel_atomic_lock_global_state(&new_cdclk_state->base);
if (ret)
return ret;
} else {
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.h b/drivers/gpu/drm/i915/display/intel_cdclk.h
index 4b965db07720..195fca70bfcb 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.h
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.h
@@ -8,11 +8,12 @@
#include <linux/types.h>
+#include "i915_drv.h"
#include "intel_display.h"
+#include "intel_global_state.h"
struct drm_i915_private;
struct intel_atomic_state;
-struct intel_cdclk_config;
struct intel_crtc_state;
struct intel_cdclk_vals {
@@ -22,6 +23,35 @@ struct intel_cdclk_vals {
u8 ratio;
};
+struct intel_cdclk_state {
+ struct intel_global_state base;
+
+ /*
+ * Logical configuration of cdclk (used for all scaling,
+ * watermark, etc. calculations and checks). This is
+ * computed as if all enabled crtcs were active.
+ */
+ struct intel_cdclk_config logical;
+
+ /*
+ * Actual configuration of cdclk, can be different from the
+ * logical configuration only when all crtc's are DPMS off.
+ */
+ struct intel_cdclk_config actual;
+
+ /* minimum acceptable cdclk for each pipe */
+ int min_cdclk[I915_MAX_PIPES];
+ /* minimum acceptable voltage level for each pipe */
+ u8 min_voltage_level[I915_MAX_PIPES];
+
+ /* pipe to which cd2x update is synchronized */
+ enum pipe pipe;
+
+ /* forced minimum cdclk for glk+ audio w/a */
+ int force_min_cdclk;
+ bool force_min_cdclk_changed;
+};
+
int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state);
void intel_cdclk_init_hw(struct drm_i915_private *i915);
void intel_cdclk_uninit_hw(struct drm_i915_private *i915);
@@ -31,12 +61,21 @@ void intel_update_cdclk(struct drm_i915_private *dev_priv);
void intel_update_rawclk(struct drm_i915_private *dev_priv);
bool intel_cdclk_needs_modeset(const struct intel_cdclk_config *a,
const struct intel_cdclk_config *b);
-void intel_cdclk_clear_state(struct intel_atomic_state *state);
-void intel_cdclk_swap_state(struct intel_atomic_state *state);
void intel_set_cdclk_pre_plane_update(struct intel_atomic_state *state);
void intel_set_cdclk_post_plane_update(struct intel_atomic_state *state);
void intel_dump_cdclk_config(const struct intel_cdclk_config *cdclk_config,
const char *context);
int intel_modeset_calc_cdclk(struct intel_atomic_state *state);
+struct intel_cdclk_state *
+intel_atomic_get_cdclk_state(struct intel_atomic_state *state);
+
+#define to_intel_cdclk_state(x) container_of((x), struct intel_cdclk_state, base)
+#define intel_atomic_get_old_cdclk_state(state) \
+ to_intel_cdclk_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->cdclk.obj))
+#define intel_atomic_get_new_cdclk_state(state) \
+ to_intel_cdclk_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->cdclk.obj))
+
+int intel_cdclk_init(struct drm_i915_private *dev_priv);
+
#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 dc767efffd9a..dca100546be8 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7482,7 +7482,7 @@ static void intel_crtc_disable_noatomic(struct intel_crtc *crtc,
struct intel_bw_state *bw_state =
to_intel_bw_state(dev_priv->bw_obj.state);
struct intel_cdclk_state *cdclk_state =
- &dev_priv->cdclk_state;
+ to_intel_cdclk_state(dev_priv->cdclk.obj.state);
struct intel_crtc_state *crtc_state =
to_intel_crtc_state(crtc->base.state);
enum intel_display_power_domain domain;
@@ -7780,17 +7780,17 @@ bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state)
return true;
}
-static bool hsw_compute_ips_config(struct intel_crtc_state *crtc_state)
+static int hsw_compute_ips_config(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv =
to_i915(crtc_state->uapi.crtc->dev);
- struct intel_atomic_state *intel_state =
+ struct intel_atomic_state *state =
to_intel_atomic_state(crtc_state->uapi.state);
- const struct intel_cdclk_state *cdclk_state =
- &intel_state->cdclk_state;
+
+ crtc_state->ips_enabled = false;
if (!hsw_crtc_state_ips_capable(crtc_state))
- return false;
+ return 0;
/*
* When IPS gets enabled, the pipe CRC changes. Since IPS gets
@@ -7799,18 +7799,27 @@ static bool hsw_compute_ips_config(struct intel_crtc_state *crtc_state)
* completely disable it.
*/
if (crtc_state->crc_enabled)
- return false;
+ return 0;
/* IPS should be fine as long as at least one plane is enabled. */
if (!(crtc_state->active_planes & ~BIT(PLANE_CURSOR)))
- return false;
+ return 0;
- /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
- if (IS_BROADWELL(dev_priv) &&
- crtc_state->pixel_rate > cdclk_state->logical.cdclk * 95 / 100)
- return false;
+ if (IS_BROADWELL(dev_priv)) {
+ const struct intel_cdclk_state *cdclk_state;
- return true;
+ cdclk_state = intel_atomic_get_cdclk_state(state);
+ if (IS_ERR(cdclk_state))
+ return PTR_ERR(cdclk_state);
+
+ /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */
+ if (crtc_state->pixel_rate > cdclk_state->logical.cdclk * 95 / 100)
+ return 0;
+ }
+
+ crtc_state->ips_enabled = true;
+
+ return 0;
}
static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc)
@@ -12543,14 +12552,11 @@ static u16 hsw_linetime_wm(const struct intel_crtc_state *crtc_state)
adjusted_mode->crtc_clock);
}
-static u16 hsw_ips_linetime_wm(const struct intel_crtc_state *crtc_state)
+static u16 hsw_ips_linetime_wm(const struct intel_crtc_state *crtc_state,
+ const struct intel_cdclk_state *cdclk_state)
{
- const struct intel_atomic_state *state =
- to_intel_atomic_state(crtc_state->uapi.state);
const struct drm_display_mode *adjusted_mode =
&crtc_state->hw.adjusted_mode;
- const struct intel_cdclk_state *cdclk_state =
- &state->cdclk_state;
if (!crtc_state->hw.enable)
return 0;
@@ -12580,6 +12586,32 @@ static u16 skl_linetime_wm(const struct intel_crtc_state *crtc_state)
return linetime_wm;
}
+static int hsw_compute_linetime_wm(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ struct intel_crtc_state *crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ const struct intel_cdclk_state *cdclk_state;
+
+ if (INTEL_GEN(dev_priv) >= 9)
+ crtc_state->linetime = skl_linetime_wm(crtc_state);
+ else
+ crtc_state->linetime = hsw_linetime_wm(crtc_state);
+
+ if (!hsw_crtc_supports_ips(crtc))
+ return 0;
+
+ cdclk_state = intel_atomic_get_cdclk_state(state);
+ if (IS_ERR(cdclk_state))
+ return PTR_ERR(cdclk_state);
+
+ crtc_state->ips_linetime = hsw_ips_linetime_wm(crtc_state,
+ cdclk_state);
+
+ return 0;
+}
+
static int intel_crtc_atomic_check(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
@@ -12615,7 +12647,6 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
return ret;
}
- ret = 0;
if (dev_priv->display.compute_pipe_wm) {
ret = dev_priv->display.compute_pipe_wm(crtc_state);
if (ret) {
@@ -12646,20 +12677,25 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
if (!ret)
ret = intel_atomic_setup_scalers(dev_priv, crtc,
crtc_state);
+ if (ret)
+ return ret;
}
- if (HAS_IPS(dev_priv))
- crtc_state->ips_enabled = hsw_compute_ips_config(crtc_state);
+ if (HAS_IPS(dev_priv)) {
+ ret = hsw_compute_ips_config(crtc_state);
+ if (ret)
+ return ret;
+ }
+
+ if (INTEL_GEN(dev_priv) >= 9 ||
+ IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) {
+ ret = hsw_compute_linetime_wm(state, crtc);
+ if (ret)
+ return ret;
- if (INTEL_GEN(dev_priv) >= 9) {
- crtc_state->linetime = skl_linetime_wm(crtc_state);
- } else if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) {
- crtc_state->linetime = hsw_linetime_wm(crtc_state);
- if (hsw_crtc_supports_ips(crtc))
- crtc_state->ips_linetime = hsw_ips_linetime_wm(crtc_state);
}
- return ret;
+ return 0;
}
static void intel_modeset_update_connector_atomic_state(struct drm_device *dev)
@@ -14478,7 +14514,7 @@ static bool active_planes_affects_min_cdclk(struct drm_i915_private *dev_priv)
}
static int intel_atomic_check_planes(struct intel_atomic_state *state,
- bool *need_modeset)
+ bool *need_cdclk_calc)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
struct intel_crtc_state *old_crtc_state, *new_crtc_state;
@@ -14532,8 +14568,11 @@ static int intel_atomic_check_planes(struct intel_atomic_state *state,
* affected planes are part of the state. We can now
* compute the minimum cdclk for each plane.
*/
- for_each_new_intel_plane_in_state(state, plane, plane_state, i)
- *need_modeset |= intel_plane_calc_min_cdclk(state, plane);
+ for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
+ ret = intel_plane_calc_min_cdclk(state, plane, need_cdclk_calc);
+ if (ret)
+ return ret;
+ }
return 0;
}
@@ -14654,6 +14693,7 @@ static int intel_atomic_check(struct drm_device *dev,
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_atomic_state *state = to_intel_atomic_state(_state);
struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+ struct intel_cdclk_state *new_cdclk_state;
struct intel_crtc *crtc;
int ret, i;
bool any_ms = false;
@@ -14766,18 +14806,18 @@ static int intel_atomic_check(struct drm_device *dev,
if (ret)
goto fail;
- any_ms |= state->cdclk_state.force_min_cdclk_changed;
-
ret = intel_atomic_check_planes(state, &any_ms);
if (ret)
goto fail;
+ new_cdclk_state = intel_atomic_get_new_cdclk_state(state);
+ if (new_cdclk_state && new_cdclk_state->force_min_cdclk_changed)
+ any_ms = true;
+
if (any_ms) {
ret = intel_modeset_checks(state);
if (ret)
goto fail;
- } else {
- state->cdclk_state.logical = dev_priv->cdclk_state.logical;
}
ret = intel_atomic_check_crtcs(state);
@@ -15676,8 +15716,6 @@ static int intel_atomic_commit(struct drm_device *dev,
assert_global_state_locked(dev_priv);
dev_priv->active_pipes = state->active_pipes;
-
- intel_cdclk_swap_state(state);
}
drm_atomic_state_get(&state->base);
@@ -17356,7 +17394,7 @@ void intel_init_display_hooks(struct drm_i915_private *dev_priv)
void intel_modeset_init_hw(struct drm_i915_private *i915)
{
struct intel_cdclk_state *cdclk_state =
- &i915->cdclk_state;
+ to_intel_cdclk_state(i915->cdclk.obj.state);
intel_update_cdclk(i915);
intel_dump_cdclk_config(&i915->cdclk.hw, "Current CDCLK");
@@ -17587,6 +17625,10 @@ int intel_modeset_init(struct drm_i915_private *i915)
intel_mode_config_init(i915);
+ ret = intel_cdclk_init(i915);
+ if (ret)
+ return ret;
+
ret = intel_bw_init(i915);
if (ret)
return ret;
@@ -18071,6 +18113,8 @@ static void readout_plane_state(struct drm_i915_private *dev_priv)
static void intel_modeset_readout_hw_state(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
+ struct intel_cdclk_state *cdclk_state =
+ to_intel_cdclk_state(dev_priv->cdclk.obj.state);
enum pipe pipe;
struct intel_crtc *crtc;
struct intel_encoder *encoder;
@@ -18190,8 +18234,6 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
for_each_intel_crtc(dev, crtc) {
struct intel_bw_state *bw_state =
to_intel_bw_state(dev_priv->bw_obj.state);
- struct intel_cdclk_state *cdclk_state =
- &dev_priv->cdclk_state;
struct intel_crtc_state *crtc_state =
to_intel_crtc_state(crtc->base.state);
struct intel_plane *plane;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 628c4a56a9e9..524b6d5235ee 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -465,8 +465,6 @@ struct intel_atomic_state {
struct __intel_global_objs_state *global_objs;
int num_global_objs;
- struct intel_cdclk_state cdclk_state;
-
bool dpll_set, modeset;
/*
@@ -493,7 +491,6 @@ struct intel_atomic_state {
/*
* active_pipes
- * cdclk_state
*/
bool global_state_changed;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 63cda89a4e62..2e6b149478c1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -65,7 +65,6 @@
#include "i915_utils.h"
#include "display/intel_bios.h"
-#include "display/intel_cdclk.h"
#include "display/intel_display.h"
#include "display/intel_display_power.h"
#include "display/intel_dpll_mgr.h"
@@ -258,7 +257,8 @@ struct intel_connector;
struct intel_encoder;
struct intel_atomic_state;
struct intel_cdclk_config;
-struct intel_crtc_state;
+struct intel_cdclk_state;
+struct intel_cdclk_vals;
struct intel_initial_plane_config;
struct intel_crtc;
struct intel_limit;
@@ -282,7 +282,7 @@ struct drm_i915_display_funcs {
struct intel_crtc *crtc);
int (*compute_global_watermarks)(struct intel_atomic_state *state);
void (*update_wm)(struct intel_crtc *crtc);
- int (*modeset_calc_cdclk)(struct intel_atomic_state *state);
+ int (*modeset_calc_cdclk)(struct intel_cdclk_state *state);
u8 (*calc_voltage_level)(int cdclk);
/* Returns the active state of the crtc, and if the crtc is active,
* fills out the pipe-config with the hw state. */
@@ -891,33 +891,6 @@ struct i915_selftest_stash {
atomic_t counter;
};
-struct intel_cdclk_state {
- /*
- * Logical configuration of cdclk (used for all scaling,
- * watermark, etc. calculations and checks). This is
- * computed as if all enabled crtcs were active.
- */
- struct intel_cdclk_config logical;
-
- /*
- * Actual configuration of cdclk, can be different from the
- * logical configuration only when all crtc's are DPMS off.
- */
- struct intel_cdclk_config actual;
-
- /* minimum acceptable cdclk for each pipe */
- int min_cdclk[I915_MAX_PIPES];
- /* minimum acceptable voltage level for each pipe */
- u8 min_voltage_level[I915_MAX_PIPES];
-
- /* pipe to which cd2x update is synchronized */
- enum pipe pipe;
-
- /* forced minimum cdclk for glk+ audio w/a */
- int force_min_cdclk;
- bool force_min_cdclk_changed;
-};
-
struct drm_i915_private {
struct drm_device drm;
@@ -1034,18 +1007,14 @@ struct drm_i915_private {
unsigned int fdi_pll_freq;
unsigned int czclk_freq;
- /*
- * For reading holding any crtc lock is sufficient,
- * for writing must hold all of them.
- */
- struct intel_cdclk_state cdclk_state;
-
struct {
/* The current hardware cdclk configuration */
struct intel_cdclk_config hw;
/* cdclk, divider, and ratio table from bspec */
const struct intel_cdclk_vals *table;
+
+ struct intel_global_obj obj;
} cdclk;
/**
@@ -1104,8 +1073,8 @@ struct drm_i915_private {
struct list_head global_obj_list;
/*
- * For reading active_pipes, cdclk_state holding any crtc
- * lock is sufficient, for writing must hold all of them.
+ * For reading active_pipes holding any crtc lock is
+ * sufficient, for writing must hold all of them.
*/
u8 active_pipes;
--
2.24.1
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