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authorPhilippe Gerum <rpm@xenomai.org>2009-03-04 16:52:38 +0800
committerBryan Wu <cooloney@kernel.org>2009-03-04 16:52:38 +0800
commit9bd50df6aa9bdd583793a16b0b9379dfd78c079e (patch)
tree691ae451ba3747efccfcac53b1c9c797b184673c /arch/blackfin/kernel/irqchip.c
parent97d4b35fb44cd5a80bc10952e2b1de5d3a14117b (diff)
downloadlinux-2.6.38-lt-ux500-9bd50df6aa9bdd583793a16b0b9379dfd78c079e.tar.gz
Blackfin arch: Update adeos blackfin arch patch to 1.9-00
Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel/irqchip.c')
-rw-r--r--arch/blackfin/kernel/irqchip.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 75724eee649..7fd12656484 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -144,11 +144,15 @@ asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
#endif
generic_handle_irq(irq);
-#ifndef CONFIG_IPIPE /* Useless and bugous over the I-pipe: IRQs are threaded. */
- /* If we're the only interrupt running (ignoring IRQ15 which is for
- syscalls), lower our priority to IRQ14 so that softirqs run at
- that level. If there's another, lower-level interrupt, irq_exit
- will defer softirqs to that. */
+#ifndef CONFIG_IPIPE
+ /*
+ * If we're the only interrupt running (ignoring IRQ15 which
+ * is for syscalls), lower our priority to IRQ14 so that
+ * softirqs run at that level. If there's another,
+ * lower-level interrupt, irq_exit will defer softirqs to
+ * that. If the interrupt pipeline is enabled, we are already
+ * running at IRQ14 priority, so we don't need this code.
+ */
CSYNC();
pending = bfin_read_IPEND() & ~0x8000;
other_ints = pending & (pending - 1);