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.kan...@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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