linux_dsm_epyc7002/arch/x86/include/asm/alternative-asm.h
Jan Beulich 5967ed87ad x86-64: Reduce SMP locks table size
Reduce the SMP locks table size by using relative pointers instead of
absolute ones, thus cutting the table size by half.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
LKML-Reference: <4BCF30FE020000780003B3B6@vpn.id2.novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-04-28 17:15:47 -07:00

19 lines
227 B
C

#ifdef __ASSEMBLY__
#include <asm/asm.h>
#ifdef CONFIG_SMP
.macro LOCK_PREFIX
1: lock
.section .smp_locks,"a"
.balign 4
.long 1b - .
.previous
.endm
#else
.macro LOCK_PREFIX
.endm
#endif
#endif /* __ASSEMBLY__ */