From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001 From: Kacper Date: Sun, 7 Dec 2025 20:10:31 +0100 Subject: Add build system scaffolding and libc headers --- include/arch/x86_64/linux/uio.h | 45 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 include/arch/x86_64/linux/uio.h (limited to 'include/arch/x86_64/linux/uio.h') diff --git a/include/arch/x86_64/linux/uio.h b/include/arch/x86_64/linux/uio.h new file mode 100644 index 00000000..42e7ffd2 --- /dev/null +++ b/include/arch/x86_64/linux/uio.h @@ -0,0 +1,45 @@ +/* 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 __LINUX_UIO_H +#define __LINUX_UIO_H + +#include + +struct iovec { + void *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 /* __LINUX_UIO_H */ -- cgit v1.2.3