diff options
| author | Konsta Holtta <kholtta@nvidia.com> | 2013-08-30 09:56:12 +0300 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-27 12:51:53 -0700 |
| commit | 1bd0aa6cecd018f251fe28b0e1fb7871f276c8e9 (patch) | |
| tree | 1827c3dd815f20d031bb8b66f35e12b1efc81ee6 /include/trace | |
| parent | 3db0818748a209a39ce7064f397c7adf0824a9a7 (diff) | |
dma-debug: Use ftrace in {map,unmap}_*() calls
Log the map/unmap/alloc/free calls. This ftrace is enabled by default.
Bug 1173494
Change-Id: I01fe24e570346413644368a6bff1578814f05f5a
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/268383
GVS: Gerrit_Virtual_Submit
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/dmadebug.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/trace/events/dmadebug.h b/include/trace/events/dmadebug.h new file mode 100644 index 000000000000..c0929b969188 --- /dev/null +++ b/include/trace/events/dmadebug.h @@ -0,0 +1,79 @@ +/* + * include/trace/events/dmadebug.h + * + * DMA debugging event logging to ftrace. + * + * Copyright (c) 2013, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM dmadebug + +#if !defined(_TRACE_DMADEBUG_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_DMADEBUG_H + +#include <linux/ktime.h> +#include <linux/tracepoint.h> +#include <linux/types.h> +#include <linux/device.h> + +/* get architecture specific interesting data */ +char *debug_dma_platformdata(struct device *dev); + +DECLARE_EVENT_CLASS(dmadebug, + TP_PROTO(struct device *dev, dma_addr_t dma_addr, size_t size, \ + struct page *page), + + TP_ARGS(dev, dma_addr, size, page), + + TP_STRUCT__entry( + __field(struct device *, dev) + __field(dma_addr_t, dma_addr) + __field(size_t, size) + __field(struct page *, page) + ), + + TP_fast_assign( + __entry->dev = dev; + __entry->dma_addr = dma_addr; + __entry->size = size; + __entry->page = page; + ), + + TP_printk("device=%s, addr=0x%08x, size=%d page=%p platformdata=%s", + dev_name(__entry->dev), __entry->dma_addr, + __entry->size, __entry->page, + debug_dma_platformdata(__entry->dev)) +); + +#define DMADEBUGEVENT(ev) DEFINE_EVENT(dmadebug, ev, \ + TP_PROTO(struct device *dev, dma_addr_t dma_addr, size_t size, \ + struct page *page), \ + TP_ARGS(dev, dma_addr, size, page) \ +) + +DMADEBUGEVENT(dmadebug_map_page); +DMADEBUGEVENT(dmadebug_unmap_page); +DMADEBUGEVENT(dmadebug_map_sg); +DMADEBUGEVENT(dmadebug_unmap_sg); + +#undef DMADEBUGEVENT + +#endif /* _TRACE_DMADEBUG_H */ + +/* This part must be outside protection */ +#include <trace/define_trace.h> |