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| author | Steven Whitehouse <swhiteho@redhat.com> | 2006-04-21 12:52:36 -0400 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2006-04-21 12:52:36 -0400 |
| commit | a748422ee45725e04e1d3792fa19dfa90ddfd116 (patch) | |
| tree | 978e12895468baaa9f7ab2747b9f7d50beaf1717 /include/asm-mips/irq.h | |
| parent | c63e31c2cc1ec67372920b5e1aff8204d04dd172 (diff) | |
| parent | f4ffaa452e71495a06376f12f772342bc57051fc (diff) | |
| download | op-kernel-dev-a748422ee45725e04e1d3792fa19dfa90ddfd116.zip op-kernel-dev-a748422ee45725e04e1d3792fa19dfa90ddfd116.tar.gz | |
Merge branch 'master'
Diffstat (limited to 'include/asm-mips/irq.h')
| -rw-r--r-- | include/asm-mips/irq.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h index 8a342cc..dde677f 100644 --- a/include/asm-mips/irq.h +++ b/include/asm-mips/irq.h @@ -11,6 +11,9 @@ #include <linux/config.h> #include <linux/linkage.h> + +#include <asm/mipsmtregs.h> + #include <irq.h> #ifdef CONFIG_I8259 @@ -26,6 +29,23 @@ struct pt_regs; extern asmlinkage unsigned int do_IRQ(unsigned int irq, struct pt_regs *regs); +#ifdef CONFIG_MIPS_MT_SMTC +/* + * Clear interrupt mask handling "backstop" if irq_hwmask + * entry so indicates. This implies that the ack() or end() + * functions will take over re-enabling the low-level mask. + * Otherwise it will be done on return from exception. + */ +#define __DO_IRQ_SMTC_HOOK() \ +do { \ + if (irq_hwmask[irq] & 0x0000ff00) \ + write_c0_tccontext(read_c0_tccontext() & \ + ~(irq_hwmask[irq] & 0x0000ff00)); \ +} while (0) +#else +#define __DO_IRQ_SMTC_HOOK() do { } while (0) +#endif + #ifdef CONFIG_PREEMPT /* @@ -39,6 +59,7 @@ extern asmlinkage unsigned int do_IRQ(unsigned int irq, struct pt_regs *regs); #define do_IRQ(irq, regs) \ do { \ irq_enter(); \ + __DO_IRQ_SMTC_HOOK(); \ __do_IRQ((irq), (regs)); \ irq_exit(); \ } while (0) @@ -46,5 +67,14 @@ do { \ #endif extern void arch_init_irq(void); +extern void spurious_interrupt(struct pt_regs *regs); + +#ifdef CONFIG_MIPS_MT_SMTC +struct irqaction; + +extern unsigned long irq_hwmask[]; +extern int setup_irq_smtc(unsigned int irq, struct irqaction * new, + unsigned long hwmask); +#endif /* CONFIG_MIPS_MT_SMTC */ #endif /* _ASM_IRQ_H */ |
