diff options
| author | Matthew McClintock <msm@freescale.com> | 2010-09-16 17:58:23 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2010-10-14 00:52:46 -0500 |
| commit | c71635d288ffd3bcdfb30308f681f9af34f0fc81 (patch) | |
| tree | f3bbfcb3c81b85bf3dc228a7685d093a5ac2760d /arch/powerpc/kernel/machine_kexec.c | |
| parent | fbdd7144ceadd578bc2a875af1dabd67e80ba0d0 (diff) | |
powerpc/kexec: make masking/disabling interrupts generic
Right now just the kexec crash pathway turns turns off the interrupts.
Pull that out and make a generic version for use elsewhere
Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/machine_kexec.c')
| -rw-r--r-- | arch/powerpc/kernel/machine_kexec.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index dd6c141f166..df7e20c191c 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -14,10 +14,34 @@ #include <linux/threads.h> #include <linux/memblock.h> #include <linux/of.h> +#include <linux/irq.h> + #include <asm/machdep.h> #include <asm/prom.h> #include <asm/sections.h> +void machine_kexec_mask_interrupts(void) { + unsigned int i; + + for_each_irq(i) { + struct irq_desc *desc = irq_to_desc(i); + + if (!desc || !desc->chip) + continue; + + if (desc->chip->eoi && + desc->status & IRQ_INPROGRESS) + desc->chip->eoi(i); + + if (desc->chip->mask) + desc->chip->mask(i); + + if (desc->chip->disable && + !(desc->status & IRQ_DISABLED)) + desc->chip->disable(i); + } +} + void machine_crash_shutdown(struct pt_regs *regs) { if (ppc_md.machine_crash_shutdown) |