From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: [PATCH 07/10] drm/tegra: hdmi: Trace register accesses Date: Tue, 15 Aug 2017 15:41:11 +0200 Message-ID: <20170815134114.17547-7-thierry.reding@gmail.com> References: <20170815134114.17547-1-thierry.reding@gmail.com> Return-path: In-Reply-To: <20170815134114.17547-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thierry Reding Cc: Mikko Perttunen , dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org From: Thierry Reding Add tracepoint events for HDMI controller register accesses. Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/hdmi.c | 8 +++++++- drivers/gpu/drm/tegra/trace.h | 7 +++++++ 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index aa7525619f3e..5b9d83b71943 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -24,6 +24,7 @@ #include "hdmi.h" #include "drm.h" #include "dc.h" +#include "trace.h" #define HDMI_ELD_BUFFER_SIZE 96 @@ -102,12 +103,17 @@ enum { static inline u32 tegra_hdmi_readl(struct tegra_hdmi *hdmi, 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, unsigned int offset) { + trace_hdmi_writel(hdmi->dev, offset, value); writel(value, hdmi->regs + (offset << 2)); } diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h index b32d90c967e8..e5c2e431c101 100644 --- a/drivers/gpu/drm/tegra/trace.h +++ b/drivers/gpu/drm/tegra/trace.h @@ -31,6 +31,13 @@ DEFINE_EVENT(register_access, dc_readl, TP_PROTO(struct device *dev, unsigned int offset, u32 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 */ /* This part must be outside protection */ -- 2.13.3