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| author | Paul Mundt <lethal@linux-sh.org> | 2010-04-13 09:43:03 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-04-13 09:43:03 +0400 |
| commit | 43b8774dc409ea5d9369b978e2e7bc79289f0522 (patch) | |
| tree | 13aa346ff8f30786e8ce3ccfdd8341d182ce4c87 /include/linux/sh_intc.h | |
| parent | 12129fea50edcd696a9556523b058d6c445f21d8 (diff) | |
| download | linux-43b8774dc409ea5d9369b978e2e7bc79289f0522.tar.xz | |
sh: intc: userimask support.
This adds support for hardware-assisted userspace irq masking for
special priority levels. Due to the SR.IMASK interactivity, only some
platforms implement this in hardware (including but not limited to
SH-4A interrupt controllers, and ARM-based SH-Mobile CPUs). Each CPU
needs to wire this up on its own, for now only SH7786 is wired up as an
example.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/linux/sh_intc.h')
| -rw-r--r-- | include/linux/sh_intc.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h index 01d8168c5a1b..f0e8cca199c7 100644 --- a/include/linux/sh_intc.h +++ b/include/linux/sh_intc.h @@ -99,6 +99,15 @@ struct intc_desc symbol __initdata = { \ int __init register_intc_controller(struct intc_desc *desc); int intc_set_priority(unsigned int irq, unsigned int prio); +#ifdef CONFIG_INTC_USERIMASK +int register_intc_userimask(unsigned long addr); +#else +static inline int register_intc_userimask(unsigned long addr) +{ + return 0; +} +#endif + int reserve_irq_vector(unsigned int irq); void reserve_irq_legacy(void); |