0x1003
!li~ Je8q 1h
0 #
0 % %File not found.
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8 '
Index of /FSS-OZR/root/proc/self/cwd/sys/module/virtio_gpu
Index of /FSS-OZR/root/proc/self/cwd/sys/module/virtio_gpu
)
u ? )/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Pointer abstraction for IO/system memory
*/
#ifndef __IOSYS_MAP_H__
#define __IOSYS_MAP_H__
#include
#include
#include
/**
* DOC: overview
*
* When accessing a memory region, depending on its location, users may have to
* access it with I/O operations or memory load/store operations. For example,
* copying to system memory could be done with memcpy(), copying to I/O memory
* would be done with memcpy_toio().
*
* .. code-block:: c
*
* void *vaddr = ...; // pointer to system memory
* memcpy(vaddr, src, len);
*
* void *vaddr_iomem = ...; // pointer to I/O memory
* memcpy_toio(vaddr_iomem, src, len);
*
* The user of such pointer may not have information about the mapping of that
* region or may want to have a single code path to handle operations on that
* buffer, regardless if it's located in system or IO memory. The type
* :c:type:`struct iosys_map ` and its helpers abstract that so the
* buffer can be passed