diff options
| author | Steven Whitehouse <swhiteho@redhat.com> | 2006-10-02 08:45:08 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-10-02 08:45:08 -0400 |
| commit | 59458f40e25915a355d8b1d701425fe9f4f9ea23 (patch) | |
| tree | f1c9a2934df686e36d75f759ab7313b6f0e0e5f9 /drivers/s390/char/sclp.c | |
| parent | 825f9075d74028d11d7f5932f04e1b5db3022b51 (diff) | |
| parent | d834c16516d1ebec4766fc58c059bf01311e6045 (diff) | |
Merge branch 'master' into gfs2
Diffstat (limited to 'drivers/s390/char/sclp.c')
| -rw-r--r-- | drivers/s390/char/sclp.c | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index 985d1613baa..31e335751d6 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -100,13 +100,12 @@ service_call(sclp_cmdw_t command, void *sccb) { int cc; - __asm__ __volatile__( - " .insn rre,0xb2200000,%1,%2\n" /* servc %1,%2 */ - " ipm %0\n" - " srl %0,28" - : "=&d" (cc) - : "d" (command), "a" (__pa(sccb)) - : "cc", "memory" ); + asm volatile( + " .insn rre,0xb2200000,%1,%2\n" /* servc %1,%2 */ + " ipm %0\n" + " srl %0,28" + : "=&d" (cc) : "d" (command), "a" (__pa(sccb)) + : "cc", "memory"); if (cc == 3) return -EIO; if (cc == 2) @@ -360,16 +359,6 @@ sclp_interrupt_handler(struct pt_regs *regs, __u16 code) sclp_process_queue(); } -/* Return current Time-Of-Day clock. */ -static inline u64 -sclp_get_clock(void) -{ - u64 result; - - asm volatile ("STCK 0(%1)" : "=m" (result) : "a" (&(result)) : "cc"); - return result; -} - /* Convert interval in jiffies to TOD ticks. */ static inline u64 sclp_tod_from_jiffies(unsigned long jiffies) @@ -382,7 +371,6 @@ sclp_tod_from_jiffies(unsigned long jiffies) void sclp_sync_wait(void) { - unsigned long psw_mask; unsigned long flags; unsigned long cr0, cr0_sync; u64 timeout; @@ -392,7 +380,7 @@ sclp_sync_wait(void) timeout = 0; if (timer_pending(&sclp_request_timer)) { /* Get timeout TOD value */ - timeout = sclp_get_clock() + + timeout = get_clock() + sclp_tod_from_jiffies(sclp_request_timer.expires - jiffies); } @@ -406,13 +394,12 @@ sclp_sync_wait(void) cr0_sync |= 0x00000200; cr0_sync &= 0xFFFFF3AC; __ctl_load(cr0_sync, 0, 0); - asm volatile ("STOSM 0(%1),0x01" - : "=m" (psw_mask) : "a" (&psw_mask) : "memory"); + __raw_local_irq_stosm(0x01); /* Loop until driver state indicates finished request */ while (sclp_running_state != sclp_running_state_idle) { /* Check for expired request timer */ if (timer_pending(&sclp_request_timer) && - sclp_get_clock() > timeout && + get_clock() > timeout && del_timer(&sclp_request_timer)) sclp_request_timer.function(sclp_request_timer.data); barrier(); |