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| author | Tian Tao <tiantao6@hisilicon.com> | 2022-03-08 16:59:10 +0800 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-03-10 07:41:14 +0100 |
| commit | 8ddde07a3d285a0f3cec14924446608320fdc013 (patch) | |
| tree | 58e4e60ea23ca5e7bd637d7838670579b1cd6a58 /tools | |
| parent | 80e4390981618e290616dbd06ea190d4576f219d (diff) | |
| download | linux-stable-8ddde07a3d285a0f3cec14924446608320fdc013.tar.gz linux-stable-8ddde07a3d285a0f3cec14924446608320fdc013.tar.bz2 linux-stable-8ddde07a3d285a0f3cec14924446608320fdc013.zip | |
dma-mapping: benchmark: extract a common header file for map_benchmark definition
kernel/dma/map_benchmark.c and selftests/dma/dma_map_benchmark.c
have duplicate map_benchmark definitions, which tends to lead to
inconsistent changes to map_benchmark on both sides, extract a
common header file to avoid this problem.
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Acked-by: Barry Song <song.bao.hua@hisilicon.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/dma/dma_map_benchmark.c | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c index 485dff51bad2..c3b3c09e995e 100644 --- a/tools/testing/selftests/dma/dma_map_benchmark.c +++ b/tools/testing/selftests/dma/dma_map_benchmark.c @@ -10,40 +10,17 @@ #include <unistd.h> #include <sys/ioctl.h> #include <sys/mman.h> +#include <linux/map_benchmark.h> #include <linux/types.h> #define NSEC_PER_MSEC 1000000L -#define DMA_MAP_BENCHMARK _IOWR('d', 1, struct map_benchmark) -#define DMA_MAP_MAX_THREADS 1024 -#define DMA_MAP_MAX_SECONDS 300 -#define DMA_MAP_MAX_TRANS_DELAY (10 * NSEC_PER_MSEC) - -#define DMA_MAP_BIDIRECTIONAL 0 -#define DMA_MAP_TO_DEVICE 1 -#define DMA_MAP_FROM_DEVICE 2 - static char *directions[] = { "BIDIRECTIONAL", "TO_DEVICE", "FROM_DEVICE", }; -struct map_benchmark { - __u64 avg_map_100ns; /* average map latency in 100ns */ - __u64 map_stddev; /* standard deviation of map latency */ - __u64 avg_unmap_100ns; /* as above */ - __u64 unmap_stddev; - __u32 threads; /* how many threads will do map/unmap in parallel */ - __u32 seconds; /* how long the test will last */ - __s32 node; /* which numa node this benchmark will run on */ - __u32 dma_bits; /* DMA addressing capability */ - __u32 dma_dir; /* DMA data direction */ - __u32 dma_trans_ns; /* time for DMA transmission in ns */ - __u32 granule; /* how many PAGE_SIZE will do map/unmap once a time */ - __u8 expansion[76]; /* For future use */ -}; - int main(int argc, char **argv) { struct map_benchmark map; |