From: Vathsala Nagaraju <vathsala.nagaraju@xxxxxxxxx>
Prints live state of psr1.Extending the existing
PSR2 live state function to cover psr1.
Tested on KBL with psr2 and psr1 panel.
v2: rebase
v3: DK
Rename psr2_live_status to psr_source_status
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_debugfs.c | 66 +++++++++++++++++++++++--------------
drivers/gpu/drm/i915/i915_reg.h | 1 +
2 files changed, 43 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5251544..e4a2f15 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2596,25 +2596,42 @@ static int i915_guc_log_relay_release(struct inode *inode, struct file *file)
.release = i915_guc_log_relay_release,
};
-static const char *psr2_live_status(u32 val)
-{
- static const char * const live_status[] = {
- "IDLE",
- "CAPTURE",
- "CAPTURE_FS",
- "SLEEP",
- "BUFON_FW",
- "ML_UP",
- "SU_STANDBY",
- "FAST_SLEEP",
- "DEEP_SLEEP",
- "BUF_ON",
- "TG_ON"
- };
-
- val = (val & EDP_PSR2_STATUS_STATE_MASK) >> EDP_PSR2_STATUS_STATE_SHIFT;
- if (val < ARRAY_SIZE(live_status))
- return live_status[val];
+static const char *psr_source_status(u32 val, bool is_psr2_enabled)
+{
+ if (is_psr2_enabled) {
+ static const char * const live_status[] = {
+ "IDLE",
+ "CAPTURE",
+ "CAPTURE_FS",
+ "SLEEP",
+ "BUFON_FW",
+ "ML_UP",
+ "SU_STANDBY",
+ "FAST_SLEEP",
+ "DEEP_SLEEP",
+ "BUF_ON",
+ "TG_ON"
+ };
+ val = (val & EDP_PSR2_STATUS_STATE_MASK) >>
+ EDP_PSR2_STATUS_STATE_SHIFT;
+ if (val < ARRAY_SIZE(live_status))
+ return live_status[val];
+ } else {
+ static const char * const live_status[] = {
+ "IDLE",
+ "SRDONACK",
+ "SRDENT",
+ "BUFOFF",
+ "BUFON",
+ "AUXACK",
+ "SRDOFFACK",
+ "SRDENT_ON",
+ };
+ val = (val & EDP_PSR_STATUS_STATE_MASK) >>
+ EDP_PSR_STATUS_STATE_SHIFT;
+ if (val < ARRAY_SIZE(live_status))
+ return live_status[val];
+ }
return "unknown";
}
@@ -2647,6 +2664,7 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
enum pipe pipe;
bool enabled = false;
bool sink_support;
+ u32 psr_status;
if (!HAS_PSR(dev_priv))
return -ENODEV;
@@ -2714,12 +2732,12 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
seq_printf(m, "Performance_Counter: %u\n", psrperf);
}
- if (dev_priv->psr.psr2_enabled) {
- u32 psr2 = I915_READ(EDP_PSR2_STATUS);
- seq_printf(m, "EDP_PSR2_STATUS: %x [%s]\n",
- psr2, psr2_live_status(psr2));
- }
+ psr_status = (dev_priv->psr.psr2_enabled) ? I915_READ(EDP_PSR2_STATUS) :
+ I915_READ(EDP_PSR_STATUS);
+ seq_printf(m, "SOURCE_PSR_STATUS: %x[%s]\n",
+ psr_status,
+ psr_source_status(psr_status, dev_priv->psr.psr2_enabled));
if (dev_priv->psr.enabled) {
struct drm_dp_aux *aux = &dev_priv->psr.enabled->aux;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 513b4a4..3c42021 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4069,6 +4069,7 @@ enum {
#define EDP_PSR_STATUS_SENDING_TP2_TP3 (1<<8)
#define EDP_PSR_STATUS_SENDING_TP1 (1<<4)
#define EDP_PSR_STATUS_IDLE_MASK 0xf
+#define EDP_PSR_STATUS_STATE_SHIFT 29
#define EDP_PSR_PERF_CNT _MMIO(dev_priv->psr_mmio_base + 0x44)
#define EDP_PSR_PERF_CNT_MASK 0xffffff
--
1.9.1
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