mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 16:40:52 +07:00
e045fb2a98
Add xlate and unxlate around /dev/mem read/write. This sets up the mapping that can be used for /dev/mem read and write without aliasing worries. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
20 lines
471 B
C
20 lines
471 B
C
#ifndef _ASM_X86_IO_H
|
|
#define _ASM_X86_IO_H
|
|
|
|
#define ARCH_HAS_IOREMAP_WC
|
|
|
|
#ifdef CONFIG_X86_32
|
|
# include "io_32.h"
|
|
#else
|
|
# include "io_64.h"
|
|
#endif
|
|
|
|
extern void *xlate_dev_mem_ptr(unsigned long phys);
|
|
extern void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
|
|
|
|
extern int ioremap_change_attr(unsigned long vaddr, unsigned long size,
|
|
unsigned long prot_val);
|
|
extern void __iomem *ioremap_wc(unsigned long offset, unsigned long size);
|
|
|
|
#endif /* _ASM_X86_IO_H */
|