UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/tegra: hdmi: Trace register accesses 

Add tracepoint events for HDMI controller register accesses.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2017-08-15 15:41:11 +02:00
parent 67e04d1ab1
commit 07a8aab899
2 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/gpu/drm/tegra/hdmi.c
View File

@ -24,6 +24,7 @@
#include "hdmi.h" #include "hdmi.h"
#include "drm.h" #include "drm.h"
#include "dc.h" #include "dc.h"
#include "trace.h"
#define HDMI_ELD_BUFFER_SIZE 96 #define HDMI_ELD_BUFFER_SIZE 96
@ -102,12 +103,17 @@ enum {
static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi, static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi,
unsigned int offset) unsigned int offset)
{ {
return readl(hdmi->regs + (offset << 2)); u32 value = readl(hdmi->regs + (offset << 2));
trace_hdmi_readl(hdmi->dev, offset, value);
return value;
} }
static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value, static inline void tegra_hdmi_writel(struct tegra_hdmi *hdmi, u32 value,
unsigned int offset) unsigned int offset)
{ {
trace_hdmi_writel(hdmi->dev, offset, value);
writel(value, hdmi->regs + (offset << 2)); writel(value, hdmi->regs + (offset << 2));
} }

7
drivers/gpu/drm/tegra/trace.h
View File

@ -31,6 +31,13 @@ DEFINE_EVENT(register_access, dc_readl,
TP_PROTO(struct device *dev, unsigned int offset, u32 value), TP_PROTO(struct device *dev, unsigned int offset, u32 value),
TP_ARGS(dev, offset, value)); TP_ARGS(dev, offset, value));
DEFINE_EVENT(register_access, hdmi_writel,
TP_PROTO(struct device *dev, unsigned int offset, u32 value),
TP_ARGS(dev, offset, value));
DEFINE_EVENT(register_access, hdmi_readl,
TP_PROTO(struct device *dev, unsigned int offset, u32 value),
TP_ARGS(dev, offset, value));
#endif /* DRM_TEGRA_TRACE_H */ #endif /* DRM_TEGRA_TRACE_H */
/* This part must be outside protection */ /* This part must be outside protection */