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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-04-19 18:28:57 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2026-04-19 18:28:57 -0700 |
| commit | f4b369c6fe0ceaba2da2daff8c9eb415f85926dd (patch) | |
| tree | 30465d0a429b2c224685b5d8e804bf053c4d129a /include/linux/map_benchmark.h | |
| parent | ff14dafde15c11403fac61367a34fea08926e9ee (diff) | |
| parent | 2ca45e57ea027fffe3350ae5e21ad9cecb0dce74 (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 7.1 merge window.
Diffstat (limited to 'include/linux/map_benchmark.h')
| -rw-r--r-- | include/linux/map_benchmark.h | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/include/linux/map_benchmark.h b/include/linux/map_benchmark.h deleted file mode 100644 index 48e2ff95332f..000000000000 --- a/include/linux/map_benchmark.h +++ /dev/null @@ -1,32 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2022 HiSilicon Limited. - */ - -#ifndef _KERNEL_DMA_BENCHMARK_H -#define _KERNEL_DMA_BENCHMARK_H - -#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 - -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 */ -}; -#endif /* _KERNEL_DMA_BENCHMARK_H */ |
