android_kernel_xiaomi_sm8350/include/asm-um/io.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

37 lines
750 B
C

#ifndef __UM_IO_H
#define __UM_IO_H
#include "asm/page.h"
#define IO_SPACE_LIMIT 0xdeadbeef /* Sure hope nothing uses this */
static inline int inb(unsigned long i) { return(0); }
static inline void outb(char c, unsigned long i) { }
/*
* Change virtual addresses to physical addresses and vv.
* These are pretty trivial
*/
static inline unsigned long virt_to_phys(volatile void * address)
{
return __pa((void *) address);
}
static inline void * phys_to_virt(unsigned long address)
{
return __va(address);
}
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
*/
#define xlate_dev_mem_ptr(p) __va(p)
/*
* Convert a virtual cached pointer to an uncached pointer
*/
#define xlate_dev_kmem_ptr(p) p
#endif