iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

s390/timex: get rid of register asm

Browse Source 
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens
2021-06-17 11:32:53 +02:00
committed by Vasily Gorbik
parent cf1ffce243
commit fcc91d5d40
1 changed files with 16 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
arch/s390/include/asm/timex.h
View File

@ -75,9 +75,12 @@ static inline void set_clock_comparator(__u64 time)
static inline void set_tod_programmable_field(u16 val)
{
register unsigned long reg0 asm("0") = val;
asm volatile("sckpf" : : "d" (reg0));
asm volatile(
" lgr 0,%[val]\n"
" sckpf\n"
:
: [val] "d" ((unsigned long)val)
: "0");
}
void clock_comparator_work(void);
@ -138,16 +141,19 @@ struct ptff_qui {
#define ptff(ptff_block, len, func) \
({ \
struct addrtype { char _[len]; }; \
register unsigned int reg0 asm("0") = func; \
register unsigned long reg1 asm("1") = (unsigned long) (ptff_block);\
unsigned int reg0 = func; \
unsigned long reg1 = (unsigned long)(ptff_block); \
int rc; \
\
asm volatile( \
" .word 0x0104\n" \
" ipm %0\n" \
" srl %0,28\n" \
: "=d" (rc), "+m" (*(struct addrtype *) reg1) \
: "d" (reg0), "d" (reg1) : "cc"); \
" lgr 0,%[reg0]\n" \
" lgr 1,%[reg1]\n" \
" .insn e,0x0104\n" \
" ipm %[rc]\n" \
" srl %[rc],28\n" \
: [rc] "=&d" (rc), "+m" (*(struct addrtype *)reg1) \
: [reg0] "d" (reg0), [reg1] "d" (reg1) \
: "cc", "0", "1"); \
rc; \
})