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authorRalf Baechle <ralf@linux-mips.org>2006-04-05 09:45:45 +0100
committerRalf Baechle <ralf@linux-mips.org>2006-04-19 04:14:28 +0200
commit41c594ab65fc89573af296d192aa5235d09717ab (patch)
tree562462512a320f386bdf49eabfbb26bb3ee761fa /arch/mips/kernel/irq.c
parent2600990e640e3bef29ed89d565864cf16ee83833 (diff)
[MIPS] MT: Improved multithreading support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/irq.c')
-rw-r--r--arch/mips/kernel/irq.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index e0efc4f2f93e..3dce742e716f 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -38,6 +38,15 @@ void ack_bad_irq(unsigned int irq)
atomic_t irq_err_count;
+#ifdef CONFIG_MIPS_MT_SMTC
+/*
+ * SMTC Kernel needs to manipulate low-level CPU interrupt mask
+ * in do_IRQ. These are passed in setup_irq_smtc() and stored
+ * in this table.
+ */
+unsigned long irq_hwmask[NR_IRQS];
+#endif /* CONFIG_MIPS_MT_SMTC */
+
#undef do_IRQ
/*
@@ -49,6 +58,7 @@ asmlinkage unsigned int do_IRQ(unsigned int irq, struct pt_regs *regs)
{
irq_enter();
+ __DO_IRQ_SMTC_HOOK();
__do_IRQ(irq, regs);
irq_exit();
@@ -129,6 +139,9 @@ void __init init_IRQ(void)
irq_desc[i].depth = 1;
irq_desc[i].handler = &no_irq_type;
spin_lock_init(&irq_desc[i].lock);
+#ifdef CONFIG_MIPS_MT_SMTC
+ irq_hwmask[i] = 0;
+#endif /* CONFIG_MIPS_MT_SMTC */
}
arch_init_irq();