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[POWERPC] PS3: Use clear_bit 

Replace the inline asm with bitops in the PS3 interrupt
chip mask routines.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geoff Levand 2007-06-16 08:06:09 +10:00 committed by Paul Mackerras
parent aab8350070
commit a354ab8557
1 changed files with 2 additions and 24 deletions
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26
arch/powerpc/platforms/ps3/interrupt.c
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@ -100,24 +100,13 @@ static DEFINE_PER_CPU(struct ps3_private, ps3_private);
static void ps3_chip_mask(unsigned int virq)
{
struct ps3_private *pd = get_irq_chip_data(virq);
u64 bit = 0x8000000000000000UL >> virq;
u64 *p = &pd->bmp.mask;
u64 old;
unsigned long flags;
pr_debug("%s:%d: thread_id %lu, virq %d\n", __func__, __LINE__,
pd->thread_id, virq);
local_irq_save(flags);
asm volatile(
"1: ldarx %0,0,%3\n"
"andc %0,%0,%2\n"
"stdcx. %0,0,%3\n"
"bne- 1b"
: "=&r" (old), "+m" (*p)
: "r" (bit), "r" (p)
: "cc" );
clear_bit(63 - virq, &pd->bmp.mask);
lv1_did_update_interrupt_mask(pd->ppe_id, pd->thread_id);
local_irq_restore(flags);
}
@ -132,24 +121,13 @@ static void ps3_chip_mask(unsigned int virq)
static void ps3_chip_unmask(unsigned int virq)
{
struct ps3_private *pd = get_irq_chip_data(virq);
u64 bit = 0x8000000000000000UL >> virq;
u64 *p = &pd->bmp.mask;
u64 old;
unsigned long flags;
pr_debug("%s:%d: thread_id %lu, virq %d\n", __func__, __LINE__,
pd->thread_id, virq);
local_irq_save(flags);
asm volatile(
"1: ldarx %0,0,%3\n"
"or %0,%0,%2\n"
"stdcx. %0,0,%3\n"
"bne- 1b"
: "=&r" (old), "+m" (*p)
: "r" (bit), "r" (p)
: "cc" );
set_bit(63 - virq, &pd->bmp.mask);
lv1_did_update_interrupt_mask(pd->ppe_id, pd->thread_id);
local_irq_restore(flags);
}