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authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-27 07:26:48 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-27 07:26:48 +0900
commitb76a1e4f2a2f95354f4567c8eb420fd4cb68fc26 (patch)
tree3231168f2e67d8351e8b9bf4161d9df89251f5fd
parent78daa87b1d332e4ac963c793a4157533d57501c7 (diff)
parent4814a2b3c603438ed8c330c74b49aa662b1ede43 (diff)
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Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] qdio: free indicator after reset is finished [S390] nmi: fix clock comparator revalidation
-rw-r--r--arch/s390/kernel/nmi.c10
-rw-r--r--arch/s390/lib/delay.c14
-rw-r--r--drivers/s390/cio/qdio_thinint.c2
3 files changed, 14 insertions, 12 deletions
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index ac151399ef3..1995c1712fc 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -95,7 +95,6 @@ EXPORT_SYMBOL_GPL(s390_handle_mcck);
static int notrace s390_revalidate_registers(struct mci *mci)
{
int kill_task;
- u64 tmpclock;
u64 zero;
void *fpt_save_area, *fpt_creg_save_area;
@@ -214,11 +213,10 @@ static int notrace s390_revalidate_registers(struct mci *mci)
: "0", "cc");
#endif
/* Revalidate clock comparator register */
- asm volatile(
- " stck 0(%1)\n"
- " sckc 0(%1)"
- : "=m" (tmpclock) : "a" (&(tmpclock)) : "cc", "memory");
-
+ if (S390_lowcore.clock_comparator == -1)
+ set_clock_comparator(S390_lowcore.mcck_clock);
+ else
+ set_clock_comparator(S390_lowcore.clock_comparator);
/* Check if old PSW is valid */
if (!mci->wp)
/*
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 752b362bf65..7c37ec359ec 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -29,17 +29,21 @@ static void __udelay_disabled(unsigned long long usecs)
{
unsigned long mask, cr0, cr0_saved;
u64 clock_saved;
+ u64 end;
+ mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
+ end = get_clock() + (usecs << 12);
clock_saved = local_tick_disable();
- set_clock_comparator(get_clock() + (usecs << 12));
__ctl_store(cr0_saved, 0, 0);
cr0 = (cr0_saved & 0xffff00e0) | 0x00000800;
__ctl_load(cr0 , 0, 0);
- mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_EXT;
lockdep_off();
- trace_hardirqs_on();
- __load_psw_mask(mask);
- local_irq_disable();
+ do {
+ set_clock_comparator(end);
+ trace_hardirqs_on();
+ __load_psw_mask(mask);
+ local_irq_disable();
+ } while (get_clock() < end);
lockdep_on();
__ctl_load(cr0_saved, 0, 0);
local_tick_enable(clock_saved);
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 752dbee06af..5d9c66627b6 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -292,8 +292,8 @@ void qdio_shutdown_thinint(struct qdio_irq *irq_ptr)
return;
/* reset adapter interrupt indicators */
- put_indicator(irq_ptr->dsci);
set_subchannel_ind(irq_ptr, 1);
+ put_indicator(irq_ptr->dsci);
}
void __exit tiqdio_unregister_thinints(void)