diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2026-09-21 19:35:45 -0300 |
|---|---|---|
| committer | Alex Williamson <alex@shazbot.org> | 2026-09-28 14:10:48 -0600 |
| commit | be0237a5f35df3518953075c375cc07fe09aef38 (patch) | |
| tree | 090de8e821c124d9d69d12027d81c334ae501ff6 /tools/include/linux | |
| parent | 5f8e94a75a11661184de9e2d8aaeca095554c6f7 (diff) | |
selftests: Add additional kernel functions to tools/include/
These are needed by the VFIO mlx5 selftest in the following patches,
which includes some headers from mlx5 and also needs a few more
MMIO-related features.
- DECLARE_FLEX_ARRAY in new tools/include/linux/stddef.h (wraps
existing __DECLARE_FLEX_ARRAY from uapi/linux/stddef.h)
- dma_wmb/dma_rmb barriers: x86 uses compiler barrier
(DMA-coherent), arm64 uses dmb oshst/oshld (outer-shareable for
device visibility), generic fallback uses wmb/rmb
- ioread32be/iowrite32be in tools/include/asm-generic/io.h for
big-endian MMIO register access
Assisted-by: Claude:claude-opus-4.6
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v7-c6d30e8ce1e4+3dfa6-mlx5st_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Diffstat (limited to 'tools/include/linux')
| -rw-r--r-- | tools/include/linux/stddef.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/linux/stddef.h b/tools/include/linux/stddef.h new file mode 100644 index 000000000000..99182ea4a141 --- /dev/null +++ b/tools/include/linux/stddef.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _TOOLS_LINUX_STDDEF_H +#define _TOOLS_LINUX_STDDEF_H + +#include_next <linux/stddef.h> + +#define DECLARE_FLEX_ARRAY(TYPE, NAME) \ + __DECLARE_FLEX_ARRAY(TYPE, NAME) + +#endif /* _TOOLS_LINUX_STDDEF_H */ |