projects
/
firefly-linux-kernel-4.4.55.git
/ blob
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
history
|
raw
|
HEAD
[PATCH] unify PFN_* macros
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
pfn.h
1
#ifndef _LINUX_PFN_H_
2
#define _LINUX_PFN_H_
3
4
#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
5
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
6
#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
7
#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
8
9
#endif