Files
@ 85642093068c
Branch filter:
Location: vmkdrivers/BLD/build/HEADERS/CUR-92-vmkdrivers-asm-x64/vmkernel64/release/asm/unaligned.h - annotation
85642093068c
1.2 KiB
text/x-chdr
ESXi-5.1-U2
0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 0d186246d211 | #ifndef __X8664_UNALIGNED_H
#define __X8664_UNALIGNED_H
/*
* The x86-64 can do unaligned accesses itself.
*
* The strange macros are there to make sure these can't
* be misused in a way that makes them not work on other
* architectures where unaligned accesses aren't as simple.
*/
/**
* get_unaligned - get value from possibly mis-aligned location
* @ptr: pointer to value
*
* This macro should be used for accessing values larger in size than
* single bytes at locations that are expected to be improperly aligned,
* e.g. retrieving a u16 value from a location not u16-aligned.
*
* Note that unaligned accesses can be very expensive on some architectures.
*/
#define get_unaligned(ptr) (*(ptr))
/**
* put_unaligned - put value to a possibly mis-aligned location
* @val: value to place
* @ptr: pointer to location
*
* This macro should be used for placing values larger in size than
* single bytes at locations that are expected to be improperly aligned,
* e.g. writing a u16 value to a location not u16-aligned.
*
* Note that unaligned accesses can be very expensive on some architectures.
*/
#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
#endif
|