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| author | Thierry Reding | 2017-08-15 15:41:13 +0200 |
|---|---|---|
| committer | Thierry Reding | 2017-08-17 17:57:16 +0200 |
| commit | eba7c4551a9b07bf68126e4f22fec4b66475f529 (patch) | |
| tree | 7bd2756e629707c72d9309c4e40c20d27e383824 | |
| parent | drm/tegra: dsi: Trace register accesses (diff) | |
| download | kernel-qcow2-linux-eba7c4551a9b07bf68126e4f22fec4b66475f529.tar.gz kernel-qcow2-linux-eba7c4551a9b07bf68126e4f22fec4b66475f529.tar.xz kernel-qcow2-linux-eba7c4551a9b07bf68126e4f22fec4b66475f529.zip | |
drm/tegra: dpaux: Trace register accesses
Add tracepoint events for DPAUX controller register accesses.
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | drivers/gpu/drm/tegra/dpaux.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/trace.h | 7 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index 83f1406bd487..e4da041ba89b 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -25,6 +25,7 @@ #include "dpaux.h" #include "drm.h" +#include "trace.h" static DEFINE_MUTEX(dpaux_lock); static LIST_HEAD(dpaux_list); @@ -67,12 +68,17 @@ static inline struct tegra_dpaux *work_to_dpaux(struct work_struct *work) static inline u32 tegra_dpaux_readl(struct tegra_dpaux *dpaux, unsigned int offset) { - return readl(dpaux->regs + (offset << 2)); + u32 value = readl(dpaux->regs + (offset << 2)); + + trace_dpaux_readl(dpaux->dev, offset, value); + + return value; } static inline void tegra_dpaux_writel(struct tegra_dpaux *dpaux, u32 value, unsigned int offset) { + trace_dpaux_writel(dpaux->dev, offset, value); writel(value, dpaux->regs + (offset << 2)); } diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h index dd0176ff81eb..e497a0258ee4 100644 --- a/drivers/gpu/drm/tegra/trace.h +++ b/drivers/gpu/drm/tegra/trace.h @@ -45,6 +45,13 @@ DEFINE_EVENT(register_access, dsi_readl, TP_PROTO(struct device *dev, unsigned int offset, u32 value), TP_ARGS(dev, offset, value)); +DEFINE_EVENT(register_access, dpaux_writel, + TP_PROTO(struct device *dev, unsigned int offset, u32 value), + TP_ARGS(dev, offset, value)); +DEFINE_EVENT(register_access, dpaux_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 */ |