[Intel-gfx] [RFC 1/6] drm/i915: Modifying structures related to DRRS
Vandana Kannan
vandana.kannan at intel.com
Fri Sep 12 19:43:04 CEST 2014
Moving around and changing some data related to DRRS to support
DRRS based on frontbuffer tracking in the following patches
Signed-off-by: Vandana Kannan <vandana.kannan at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 32 ++++++++++++++++++-------
drivers/gpu/drm/i915/intel_dp.c | 51 ++++++++++++++++++----------------------
drivers/gpu/drm/i915/intel_drv.h | 18 --------------
3 files changed, 47 insertions(+), 54 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 241b2bf..1713bb9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -680,11 +680,33 @@ struct i915_fbc {
} no_fbc_reason;
};
-struct i915_drrs {
- struct intel_connector *connector;
+/**
+ * HIGH_RR is the highest eDP panel refresh rate read from EDID
+ * LOW_RR is the lowest eDP panel refresh rate found from EDID
+ * parsing for same resolution.
+ */
+enum drrs_refresh_rate_type {
+ DRRS_HIGH_RR,
+ DRRS_LOW_RR,
+ DRRS_MAX_RR, /* RR count */
+};
+
+enum drrs_support_type {
+ DRRS_NOT_SUPPORTED = 0,
+ STATIC_DRRS_SUPPORT = 1,
+ SEAMLESS_DRRS_SUPPORT = 2
};
struct intel_dp;
+struct i915_drrs {
+ struct mutex mutex;
+ struct delayed_work work;
+ struct intel_dp *dp;
+ unsigned busy_frontbuffer_bits;
+ enum drrs_refresh_rate_type refresh_rate_type;
+ enum drrs_support_type type;
+};
+
struct i915_psr {
struct mutex lock;
bool sink_support;
@@ -1290,12 +1312,6 @@ struct ddi_vbt_port_info {
uint8_t supports_dp:1;
};
-enum drrs_support_type {
- DRRS_NOT_SUPPORTED = 0,
- STATIC_DRRS_SUPPORT = 1,
- SEAMLESS_DRRS_SUPPORT = 2
-};
-
struct intel_vbt_data {
struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index ab7cd0a..be9d90d 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1139,7 +1139,7 @@ found:
&pipe_config->dp_m_n);
if (intel_connector->panel.downclock_mode != NULL &&
- intel_dp->drrs_state.type == SEAMLESS_DRRS_SUPPORT) {
+ dev_priv->drrs.type == SEAMLESS_DRRS_SUPPORT) {
pipe_config->has_drrs = true;
intel_link_compute_m_n(bpp, lane_count,
intel_connector->panel.downclock_mode->clock,
@@ -4794,24 +4794,24 @@ intel_dp_init_panel_power_sequencer_registers(struct drm_device *dev,
I915_READ(pp_div_reg));
}
-void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
+static void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_encoder *encoder;
- struct intel_dp *intel_dp = NULL;
+ struct intel_digital_port *dig_port = NULL;
+ struct intel_dp *intel_dp = dev_priv->drrs.dp;
struct intel_crtc_config *config = NULL;
struct intel_crtc *intel_crtc = NULL;
- struct intel_connector *intel_connector = dev_priv->drrs.connector;
u32 reg, val;
- enum edp_drrs_refresh_rate_type index = DRRS_HIGH_RR;
+ enum drrs_refresh_rate_type index = DRRS_HIGH_RR;
if (refresh_rate <= 0) {
DRM_DEBUG_KMS("Refresh rate should be positive non-zero.\n");
return;
}
- if (intel_connector == NULL) {
- DRM_DEBUG_KMS("DRRS supported for eDP only.\n");
+ if (intel_dp == NULL) {
+ DRM_DEBUG_KMS("DRRS not supported.\n");
return;
}
@@ -4825,8 +4825,8 @@ void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
return;
}
- encoder = intel_attached_encoder(&intel_connector->base);
- intel_dp = enc_to_intel_dp(&encoder->base);
+ dig_port = dp_to_dig_port(intel_dp);
+ encoder = &dig_port->base;
intel_crtc = encoder->new_crtc;
if (!intel_crtc) {
@@ -4836,15 +4836,16 @@ void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
config = &intel_crtc->config;
- if (intel_dp->drrs_state.type < SEAMLESS_DRRS_SUPPORT) {
+ if (dev_priv->drrs.type < SEAMLESS_DRRS_SUPPORT) {
DRM_DEBUG_KMS("Only Seamless DRRS supported.\n");
return;
}
- if (intel_connector->panel.downclock_mode->vrefresh == refresh_rate)
+ if (intel_dp->attached_connector->panel.downclock_mode->vrefresh ==
+ refresh_rate)
index = DRRS_LOW_RR;
- if (index == intel_dp->drrs_state.refresh_rate_type) {
+ if (index == dev_priv->drrs.refresh_rate_type) {
DRM_DEBUG_KMS(
"DRRS requested for previously set RR...ignoring\n");
return;
@@ -4873,24 +4874,21 @@ void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate)
* in future when idleness detection based DRRS in kernel and
* possible calls from user space to set differnt RR are made.
*/
+ mutex_lock(&dev_priv->drrs.mutex);
- mutex_lock(&intel_dp->drrs_state.mutex);
+ dev_priv->drrs.refresh_rate_type = index;
- intel_dp->drrs_state.refresh_rate_type = index;
-
- mutex_unlock(&intel_dp->drrs_state.mutex);
+ mutex_unlock(&dev_priv->drrs.mutex);
DRM_DEBUG_KMS("eDP Refresh Rate set to : %dHz\n", refresh_rate);
}
static struct drm_display_mode *
-intel_dp_drrs_init(struct intel_digital_port *intel_dig_port,
- struct intel_connector *intel_connector,
- struct drm_display_mode *fixed_mode)
+intel_dp_drrs_init(struct intel_connector *intel_connector,
+ struct drm_display_mode *fixed_mode)
{
struct drm_connector *connector = &intel_connector->base;
- struct intel_dp *intel_dp = &intel_dig_port->dp;
- struct drm_device *dev = intel_dig_port->base.base.dev;
+ struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_display_mode *downclock_mode = NULL;
@@ -4912,13 +4910,11 @@ intel_dp_drrs_init(struct intel_digital_port *intel_dig_port,
return NULL;
}
- dev_priv->drrs.connector = intel_connector;
-
- mutex_init(&intel_dp->drrs_state.mutex);
+ mutex_init(&dev_priv->drrs.mutex);
- intel_dp->drrs_state.type = dev_priv->vbt.drrs_type;
+ dev_priv->drrs.type = dev_priv->vbt.drrs_type;
- intel_dp->drrs_state.refresh_rate_type = DRRS_HIGH_RR;
+ dev_priv->drrs.refresh_rate_type = DRRS_HIGH_RR;
DRM_DEBUG_KMS("seamless DRRS supported for eDP panel.\n");
return downclock_mode;
}
@@ -4969,7 +4965,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
struct drm_display_mode *scan;
struct edid *edid;
- intel_dp->drrs_state.type = DRRS_NOT_SUPPORTED;
+ dev_priv->drrs.type = DRRS_NOT_SUPPORTED;
if (!is_edp(intel_dp))
return true;
@@ -5018,7 +5014,6 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,
if ((scan->type & DRM_MODE_TYPE_PREFERRED)) {
fixed_mode = drm_mode_duplicate(dev, scan);
downclock_mode = intel_dp_drrs_init(
- intel_dig_port,
intel_connector, fixed_mode);
break;
}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 07ce046..5b613e0 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -531,17 +531,6 @@ struct intel_hdmi {
struct intel_dp_mst_encoder;
#define DP_MAX_DOWNSTREAM_PORTS 0x10
-/**
- * HIGH_RR is the highest eDP panel refresh rate read from EDID
- * LOW_RR is the lowest eDP panel refresh rate found from EDID
- * parsing for same resolution.
- */
-enum edp_drrs_refresh_rate_type {
- DRRS_HIGH_RR,
- DRRS_LOW_RR,
- DRRS_MAX_RR, /* RR count */
-};
-
struct intel_dp {
uint32_t output_reg;
uint32_t aux_ch_ctl_reg;
@@ -596,12 +585,6 @@ struct intel_dp {
bool has_aux_irq,
int send_bytes,
uint32_t aux_clock_divider);
- struct {
- enum drrs_support_type type;
- enum edp_drrs_refresh_rate_type refresh_rate_type;
- struct mutex mutex;
- } drrs_state;
-
};
struct intel_digital_port {
@@ -938,7 +921,6 @@ void intel_edp_panel_on(struct intel_dp *intel_dp);
void intel_edp_panel_off(struct intel_dp *intel_dp);
void intel_edp_psr_enable(struct intel_dp *intel_dp);
void intel_edp_psr_disable(struct intel_dp *intel_dp);
-void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate);
void intel_edp_psr_invalidate(struct drm_device *dev,
unsigned frontbuffer_bits);
void intel_edp_psr_flush(struct drm_device *dev,
--
2.0.1
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