Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-04 04:02:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

s390/smp: Convert to use flag output macros

Browse Source 
Use flag output macros in inline asm to allow for better code generation if
the compiler has support for the flag output constraint.

Reviewed-by: Juergen Christ <jchrist@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-11-07 16:11:42 +01:00
parent 3611a2367c
commit 553ed6d88a
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/s390/include/asm/sigp.h
View File

@ -38,6 +38,8 @@
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
#include <asm/asm.h>
static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm, static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm,
u32 *status) u32 *status)
{ {
@ -46,13 +48,12 @@ static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm,
asm volatile( asm volatile(
" sigp %[r1],%[addr],0(%[order])\n" " sigp %[r1],%[addr],0(%[order])\n"
" ipm %[cc]\n" CC_IPM(cc)
" srl %[cc],28\n" : CC_OUT(cc, cc), [r1] "+d" (r1.pair)
: [cc] "=&d" (cc), [r1] "+&d" (r1.pair)
: [addr] "d" (addr), [order] "a" (order) : [addr] "d" (addr), [order] "a" (order)
: "cc"); : CC_CLOBBER);
*status = r1.even; *status = r1.even;
return cc; return CC_TRANSFORM(cc);
} }
static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm, static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,