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| author | Sean Anderson <sean.anderson@linux.dev> | 2024-10-18 17:00:35 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2024-10-29 08:54:00 +0100 |
| commit | 3afff779a725cba914e6caba360b696ae6f90249 (patch) | |
| tree | 4915013e88c9d242496b5f1a38cf60840d8232ba /kernel/dma | |
| parent | dma-mapping: use macros to define events in a class (diff) | |
| download | linux-3afff779a725cba914e6caba360b696ae6f90249.tar.xz linux-3afff779a725cba914e6caba360b696ae6f90249.zip | |
dma-mapping: trace dma_alloc/free direction
In preparation for using these tracepoints in a few more places, trace
the DMA direction as well. For coherent allocations this is always
bidirectional.
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma')
| -rw-r--r-- | kernel/dma/mapping.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index 864a1121bf08..944ac835030a 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -619,7 +619,8 @@ void *dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, else return NULL; - trace_dma_alloc(dev, cpu_addr, *dma_handle, size, flag, attrs); + trace_dma_alloc(dev, cpu_addr, *dma_handle, size, DMA_BIDIRECTIONAL, + flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr, attrs); return cpu_addr; } @@ -644,7 +645,8 @@ void dma_free_attrs(struct device *dev, size_t size, void *cpu_addr, if (!cpu_addr) return; - trace_dma_free(dev, cpu_addr, dma_handle, size, attrs); + trace_dma_free(dev, cpu_addr, dma_handle, size, DMA_BIDIRECTIONAL, + attrs); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); if (dma_alloc_direct(dev, ops)) dma_direct_free(dev, size, cpu_addr, dma_handle, attrs); |