Add debugfs support which will print source and sink status
per connector basis.
Cc: Jouni Högander <jouni.hogander@xxxxxxxxx>
Signed-off-by: Animesh Manna <animesh.manna@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_psr.c | 70 ++++++++++++++++--------
1 file changed, 48 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 5cbf08a4c94c..f50f110feb09 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -3044,7 +3044,7 @@ psr_source_status(struct intel_dp *intel_dp, struct seq_file *m)
status = live_status[status_val];
}
- seq_printf(m, "Source PSR status: %s [0x%08x]\n", status, val);
+ seq_printf(m, "Source PSR/PanelReplay status: %s [0x%08x]\n", status, val);
}
static int intel_psr_status(struct seq_file *m, struct intel_dp *intel_dp)
@@ -3057,18 +3057,23 @@ static int intel_psr_status(struct seq_file *m, struct intel_dp *intel_dp)
bool enabled;
u32 val;
- seq_printf(m, "Sink support: %s", str_yes_no(psr->sink_support));
- if (psr->sink_support)
+ seq_printf(m, "Sink support: PSR = %s, Panel Replay = %s",
+ str_yes_no(psr->sink_support),
+ str_yes_no(psr->sink_panel_replay_support));
+
+ if (psr->sink_support || psr->sink_panel_replay_support)
seq_printf(m, " [0x%02x]", intel_dp->psr_dpcd[0]);
seq_puts(m, "\n");
- if (!psr->sink_support)
+ if (!(psr->sink_support || psr->sink_panel_replay_support))
return 0;
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
mutex_lock(&psr->lock);
- if (psr->enabled)
+ if (psr->panel_replay_enabled)
+ status = "Panel Replay Enabled";
+ else if (psr->enabled)
status = psr->psr2_enabled ? "PSR2 enabled" : "PSR1 enabled";
else
status = "disabled";
@@ -3081,14 +3086,17 @@ static int intel_psr_status(struct seq_file *m, struct intel_dp *intel_dp)
goto unlock;
}
- if (psr->psr2_enabled) {
+ if (psr->panel_replay_enabled) {
+ val = intel_de_read(dev_priv, TRANS_DP2_CTL(cpu_transcoder));
+ enabled = val & TRANS_DP2_PANEL_REPLAY_ENABLE;
+ } else if (psr->psr2_enabled) {
val = intel_de_read(dev_priv, EDP_PSR2_CTL(cpu_transcoder));
enabled = val & EDP_PSR2_ENABLE;
} else {
val = intel_de_read(dev_priv, psr_ctl_reg(dev_priv, cpu_transcoder));
enabled = val & EDP_PSR_ENABLE;
}
- seq_printf(m, "Source PSR ctl: %s [0x%08x]\n",
+ seq_printf(m, "Source PSR/PanelReplay ctl: %s [0x%08x]\n",
str_enabled_disabled(enabled), val);
psr_source_status(intel_dp, m);
seq_printf(m, "Busy frontbuffer bits: 0x%08x\n",
@@ -3230,6 +3238,7 @@ static int i915_psr_sink_status_show(struct seq_file *m, void *data)
{
struct intel_connector *connector = m->private;
struct intel_dp *intel_dp = intel_attached_dp(connector);
+ struct intel_psr *psr = &intel_dp->psr;
static const char * const sink_status[] = {
"inactive",
"transition to active, capture and display",
@@ -3240,27 +3249,47 @@ static int i915_psr_sink_status_show(struct seq_file *m, void *data)
"reserved",
"sink internal error",
};
+ static const char * const panel_replay_status[] = {
+ "Sink device frame is locked to the Source device",
+ "Sink device is coasting, using the VTotal target",
+ "Sink device is governing the frame rate (frame rate unlock is granted)",
+ "Sink device in the process of re-locking with the Source device",
+ };
const char *str;
int ret;
- u8 val;
+ u8 val, temp;
- if (!CAN_PSR(intel_dp)) {
- seq_puts(m, "PSR Unsupported\n");
+ if (!(CAN_PSR(intel_dp) || CAN_PANEL_REPLAY(intel_dp))) {
+ seq_puts(m, "PSR/Panel-Replay Unsupported\n");
return -ENODEV;
}
if (connector->base.status != connector_status_connected)
return -ENODEV;
- ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val);
- if (ret != 1)
- return ret < 0 ? ret : -EIO;
+ if (psr->panel_replay_enabled) {
+ ret = drm_dp_dpcd_readb(&intel_dp->aux,
+ DP_SINK_DEVICE_PR_AND_FRAME_LOCK_STATUS, &val);
+ if (ret != 1)
+ return ret < 0 ? ret : -EIO;
- val &= DP_PSR_SINK_STATE_MASK;
- if (val < ARRAY_SIZE(sink_status))
- str = sink_status[val];
- else
- str = "unknown";
+ temp = val & DP_SINK_FRAME_LOCKED_MASK;
+ temp >>= DP_SINK_FRAME_LOCKED_SHIFT;
+ if (temp < ARRAY_SIZE(panel_replay_status))
+ str = panel_replay_status[temp];
+ else
+ str = "unknown";
+ } else {
+ ret = drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_STATUS, &val);
+ if (ret != 1)
+ return ret < 0 ? ret : -EIO;
+
+ val &= DP_PSR_SINK_STATE_MASK;
+ if (val < ARRAY_SIZE(sink_status))
+ str = sink_status[val];
+ else
+ str = "unknown";
+ }
seq_printf(m, "Sink PSR status: 0x%x [%s]\n", val, str);
@@ -3282,13 +3311,10 @@ void intel_psr_connector_debugfs_add(struct intel_connector *connector)
struct drm_i915_private *i915 = to_i915(connector->base.dev);
struct dentry *root = connector->base.debugfs_entry;
- if (connector->base.connector_type != DRM_MODE_CONNECTOR_eDP)
- return;
-
debugfs_create_file("i915_psr_sink_status", 0444, root,
connector, &i915_psr_sink_status_fops);
- if (HAS_PSR(i915))
+ if (HAS_PSR(i915) || HAS_DP20(i915))
debugfs_create_file("i915_psr_status", 0444, root,
connector, &i915_psr_status_fops);
}
--
2.29.0
