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| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2018-11-21 16:13:23 +0000 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-01-07 09:52:42 +0530 |
| commit | 95f295f9fe08166307d94b641fba0b0e924d5d31 (patch) | |
| tree | ff0f3610c5748817710fcf26d278739e70112db4 /include/trace | |
| parent | 65c383c78000f73a96869505554f57c364308204 (diff) | |
| download | linux-95f295f9fe08166307d94b641fba0b0e924d5d31.tar.gz linux-95f295f9fe08166307d94b641fba0b0e924d5d31.tar.bz2 linux-95f295f9fe08166307d94b641fba0b0e924d5d31.zip | |
dmaengine: tegra: add tracepoints to driver
Add some trace-points to the driver to allow for debuging via the
trace pipe.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/tegra_apb_dma.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/trace/events/tegra_apb_dma.h b/include/trace/events/tegra_apb_dma.h new file mode 100644 index 000000000000..0818f6286110 --- /dev/null +++ b/include/trace/events/tegra_apb_dma.h @@ -0,0 +1,61 @@ +#if !defined(_TRACE_TEGRA_APB_DMA_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_TEGRA_APM_DMA_H + +#include <linux/tracepoint.h> +#include <linux/dmaengine.h> + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM tegra_apb_dma + +TRACE_EVENT(tegra_dma_tx_status, + TP_PROTO(struct dma_chan *dc, dma_cookie_t cookie, struct dma_tx_state *state), + TP_ARGS(dc, cookie, state), + TP_STRUCT__entry( + __string(chan, dev_name(&dc->dev->device)) + __field(dma_cookie_t, cookie) + __field(__u32, residue) + ), + TP_fast_assign( + __assign_str(chan, dev_name(&dc->dev->device)); + __entry->cookie = cookie; + __entry->residue = state ? state->residue : (u32)-1; + ), + TP_printk("channel %s: dma cookie %d, residue %u", + __get_str(chan), __entry->cookie, __entry->residue) +); + +TRACE_EVENT(tegra_dma_complete_cb, + TP_PROTO(struct dma_chan *dc, int count, void *ptr), + TP_ARGS(dc, count, ptr), + TP_STRUCT__entry( + __string(chan, dev_name(&dc->dev->device)) + __field(int, count) + __field(void *, ptr) + ), + TP_fast_assign( + __assign_str(chan, dev_name(&dc->dev->device)); + __entry->count = count; + __entry->ptr = ptr; + ), + TP_printk("channel %s: done %d, ptr %p", + __get_str(chan), __entry->count, __entry->ptr) +); + +TRACE_EVENT(tegra_dma_isr, + TP_PROTO(struct dma_chan *dc, int irq), + TP_ARGS(dc, irq), + TP_STRUCT__entry( + __string(chan, dev_name(&dc->dev->device)) + __field(int, irq) + ), + TP_fast_assign( + __assign_str(chan, dev_name(&dc->dev->device)); + __entry->irq = irq; + ), + TP_printk("%s: irq %d\n", __get_str(chan), __entry->irq) +); + +#endif /* _TRACE_TEGRADMA_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |