From: Thierry Reding <treding@xxxxxxxxxx>
Add tracepoint events for SOR controller register accesses.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
drivers/gpu/drm/tegra/sor.c | 8 +++++++-
drivers/gpu/drm/tegra/trace.h | 7 +++++++
2 files changed, 14 insertions(+), 1 deletion(-)
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 */
--
2.13.3
--
To unsubscribe from this list: send the line "unsubscribe linux-tegra" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
