Commit 3650cfe2 authored by Ishizaki Kou's avatar Ishizaki Kou Committed by Paul Mackerras
Browse files

[POWERPC] spufs: Add SPU register lock



spu->register_lock should be held before accessing registers.
Signed-off-by: default avatarKou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: default avatarArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent c5365313
......@@ -170,9 +170,11 @@ int
spu_irq_class_0_bottom(struct spu *spu)
{
unsigned long stat, mask;
unsigned long flags;
spu->class_0_pending = 0;
spin_lock_irqsave(&spu->register_lock, flags);
mask = spu_int_mask_get(spu, 0);
stat = spu_int_stat_get(spu, 0);
......@@ -188,6 +190,7 @@ spu_irq_class_0_bottom(struct spu *spu)
__spu_trap_error(spu);
spu_int_stat_clear(spu, 0, stat);
spin_unlock_irqrestore(&spu->register_lock, flags);
return (stat & 0x7) ? -EIO : 0;
}
......
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