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authorPaul Mackerras <paulus@samba.org>2007-11-20 11:39:26 +1100
committerPaul Mackerras <paulus@samba.org>2007-11-20 11:39:26 +1100
commitb22da92f2cf52b3c51dd9a45abb658b1414b0784 (patch)
tree7c602fb1b2d1de588fbfde6bb53662b3a1f8cb8a /arch/powerpc/sysdev
parent52142e756e9bf6485d3d53596e8aff2e816a7253 (diff)
parent3d1d662ef423adf6947a37e230f4d7e8ed7c9544 (diff)
downloadtalos-op-linux-b22da92f2cf52b3c51dd9a45abb658b1414b0784.tar.gz
talos-op-linux-b22da92f2cf52b3c51dd9a45abb658b1414b0784.zip
Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r--arch/powerpc/sysdev/uic.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/uic.c b/arch/powerpc/sysdev/uic.c
index 5149716c734d..847a5496b869 100644
--- a/arch/powerpc/sysdev/uic.c
+++ b/arch/powerpc/sysdev/uic.c
@@ -97,6 +97,22 @@ static void uic_ack_irq(unsigned int virq)
spin_unlock_irqrestore(&uic->lock, flags);
}
+static void uic_mask_ack_irq(unsigned int virq)
+{
+ struct uic *uic = get_irq_chip_data(virq);
+ unsigned int src = uic_irq_to_hw(virq);
+ unsigned long flags;
+ u32 er, sr;
+
+ sr = 1 << (31-src);
+ spin_lock_irqsave(&uic->lock, flags);
+ er = mfdcr(uic->dcrbase + UIC_ER);
+ er &= ~sr;
+ mtdcr(uic->dcrbase + UIC_ER, er);
+ mtdcr(uic->dcrbase + UIC_SR, sr);
+ spin_unlock_irqrestore(&uic->lock, flags);
+}
+
static int uic_set_irq_type(unsigned int virq, unsigned int flow_type)
{
struct uic *uic = get_irq_chip_data(virq);
@@ -152,7 +168,7 @@ static struct irq_chip uic_irq_chip = {
.typename = " UIC ",
.unmask = uic_unmask_irq,
.mask = uic_mask_irq,
-/* .mask_ack = uic_mask_irq_and_ack, */
+ .mask_ack = uic_mask_ack_irq,
.ack = uic_ack_irq,
.set_type = uic_set_irq_type,
};
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