Add debugfs support for Baytrail considering that on Baytrail we can
have PSR on pipe A or pipe B and we don't have any kind of
performance counter as we have on other platforms that support PSR.
Signed-off-by: Rodrigo Vivi <rodrigo.v...@gmail.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 36 +++++++++++++++++++++++++++++++-----
1 file changed, 31 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index d90a707..9d86808 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1900,6 +1900,8 @@ static int i915_edp_psr_status(struct seq_file *m, void
*data)
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 psrperf = 0;
+ u32 statA = 0;
+ u32 statB = 0;
bool enabled = false;
intel_runtime_pm_get(dev_priv);
@@ -1907,14 +1909,38 @@ static int i915_edp_psr_status(struct seq_file *m, void
*data)
seq_printf(m, "Sink_Support: %s\n", yesno(dev_priv->psr.sink_support));
seq_printf(m, "Source_OK: %s\n", yesno(dev_priv->psr.source_ok));
- enabled = HAS_PSR(dev) &&
- I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
- seq_printf(m, "Enabled: %s\n", yesno(enabled));
+ if (HAS_PSR(dev)) {
+ if (IS_VALLEYVIEW(dev)) {
+ statA = I915_READ(VLV_PSRSTAT(PIPE_A)) &
+ VLV_EDP_PSR_CURR_STATE_MASK;
+ statB = I915_READ(VLV_PSRSTAT(PIPE_B)) &
+ VLV_EDP_PSR_CURR_STATE_MASK;
+ enabled = ((statA == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
+ (statA == VLV_EDP_PSR_ACTIVE_SF_UPDATE) ||
+ (statB == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
+ (statB == VLV_EDP_PSR_ACTIVE_SF_UPDATE));
+ } else
+ enabled = I915_READ(EDP_PSR_CTL(dev)) & EDP_PSR_ENABLE;
+ }
+ seq_printf(m, "Enabled: %s", yesno(enabled));
- if (HAS_PSR(dev))
+ if (IS_VALLEYVIEW(dev)) {
+ if ((statA == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
+ (statA == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
+ seq_puts(m, " pipe A");
+ if ((statB == VLV_EDP_PSR_ACTIVE_NORFB_UP) ||
+ (statB == VLV_EDP_PSR_ACTIVE_SF_UPDATE))
+ seq_puts(m, " pipe B");
+ }
+
+ seq_puts(m, "\n");
+
+ /* VLV PSR has no kind of performance counter */
+ if (HAS_PSR(dev) && !IS_VALLEYVIEW(dev)) {
psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) &
EDP_PSR_PERF_CNT_MASK;
- seq_printf(m, "Performance_Counter: %u\n", psrperf);
+ seq_printf(m, "Performance_Counter: %u\n", psrperf);
+ }
intel_runtime_pm_put(dev_priv);
return 0;
--
1.8.3.1
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