diff mbox

[10/10] drm/tegra: sor: Trace register accesses

Message ID 20170815134114.17547-10-thierry.reding@gmail.com
State Accepted
Headers show

Commit Message

Thierry Reding Aug. 15, 2017, 1:41 p.m. UTC 
From: Thierry Reding <treding@nvidia.com>

Add tracepoint events for SOR controller register accesses.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/gpu/drm/tegra/sor.c   | 8 +++++++-
 drivers/gpu/drm/tegra/trace.h | 7 +++++++
 2 files changed, 14 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 020792eb2724..04b3a50deab6 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -27,6 +27,7 @@ 
 #include "dc.h"
 #include "drm.h"
 #include "sor.h"
+#include "trace.h"
 
 #define SOR_REKEY 0x38
 
@@ -237,12 +238,17 @@  static inline struct tegra_sor *to_sor(struct tegra_output *output)
 
 static inline u32 tegra_sor_readl(struct tegra_sor *sor, unsigned int offset)
 {
-	return readl(sor->regs + (offset << 2));
+	u32 value = readl(sor->regs + (offset << 2));
+
+	trace_sor_readl(sor->dev, offset, value);
+
+	return value;
 }
 
 static inline void tegra_sor_writel(struct tegra_sor *sor, u32 value,
 				    unsigned int offset)
 {
+	trace_sor_writel(sor->dev, offset, value);
 	writel(value, sor->regs + (offset << 2));
 }
 
diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h
index e497a0258ee4..e9b7cdad5c4c 100644
--- a/drivers/gpu/drm/tegra/trace.h
+++ b/drivers/gpu/drm/tegra/trace.h
@@ -52,6 +52,13 @@  DEFINE_EVENT(register_access, dpaux_readl,
 	TP_PROTO(struct device *dev, unsigned int offset, u32 value),
 	TP_ARGS(dev, offset, value));
 
+DEFINE_EVENT(register_access, sor_writel,
+	TP_PROTO(struct device *dev, unsigned int offset, u32 value),
+	TP_ARGS(dev, offset, value));
+DEFINE_EVENT(register_access, sor_readl,
+	TP_PROTO(struct device *dev, unsigned int offset, u32 value),
+	TP_ARGS(dev, offset, value));
+
 #endif /* DRM_TEGRA_TRACE_H */
 
 /* This part must be outside protection */