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s390/cmf: get rid of register asm 

Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
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 2021-06-22 14:07:23 +02:00 committed by Vasily Gorbik
parent 8cf23c8e1f
commit 6d7c628be7
1 changed files with 7 additions and 6 deletions
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13
drivers/s390/cio/cmf.c
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@ -163,13 +163,14 @@ static inline u64 time_to_avg_nsec(u32 value, u32 count)
*/
static inline void cmf_activate(void *area, unsigned int onoff)
{
register void * __gpr2 asm("2");
register long __gpr1 asm("1");
__gpr2 = area;
__gpr1 = onoff;
/* activate channel measurement */
asm("schm" : : "d" (__gpr2), "d" (__gpr1) );
asm volatile(
" lgr 1,%[r1]\n"
" lgr 2,%[mbo]\n"
" schm\n"
:
: [r1] "d" ((unsigned long)onoff), [mbo] "d" (area)
: "1", "2");
}
static int set_schib(struct ccw_device *cdev, u32 mme, int mbfc,