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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//* * Berkeley style UIO structures - Alan Cox 1994. * * 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. */#ifndef _UAPI__LINUX_UIO_H#define _UAPI__LINUX_UIO_H
#include <linux/compiler.h>#include <linux/types.h>
struct iovec{ void __user *iov_base; /* BSD uses caddr_t (1003.1g requires void *) */ __kernel_size_t iov_len; /* Must be size_t (1003.1g) */};
struct dmabuf_cmsg { __u64 frag_offset; /* offset into the dmabuf where the frag starts. */ __u32 frag_size; /* size of the frag. */ __u32 frag_token; /* token representing this frag for * DEVMEM_DONTNEED. */ __u32 dmabuf_id; /* dmabuf id this frag belongs to. */ __u32 flags; /* Currently unused. Reserved for future * uses. */};
struct dmabuf_token { __u32 token_start; __u32 token_count;};
/* * UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1) */ #define UIO_FASTIOV 8#define UIO_MAXIOV 1024
#endif /* _UAPI__LINUX_UIO_H */