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author | Ingo Molnar <mingo@elte.hu> | 2008-10-10 17:50:00 (GMT) |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-11 18:17:36 (GMT) |
commit | d84705969f898f294bc3fc32eca33580f14105bd (patch) | |
tree | c59c7e835820c6bfb5a957f70e58fee1699a6b38 /arch/x86/kernel/i8259.c | |
parent | 725c25819e4a0dafdcf42a5f31bc569341919c7c (diff) | |
parent | 11494547b1754c4f3bd7f707ab869e2adf54d52f (diff) | |
download | linux-fsl-qoriq-d84705969f898f294bc3fc32eca33580f14105bd.tar.xz |
Merge branch 'x86/apic' into x86-v28-for-linus-phase4-B
Conflicts:
arch/x86/kernel/apic_32.c
arch/x86/kernel/apic_64.c
arch/x86/kernel/setup.c
drivers/pci/intel-iommu.c
include/asm-x86/cpufeature.h
include/asm-x86/dma-mapping.h
Diffstat (limited to 'arch/x86/kernel/i8259.c')
-rw-r--r-- | arch/x86/kernel/i8259.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c index dc92b49..4b8a53d 100644 --- a/arch/x86/kernel/i8259.c +++ b/arch/x86/kernel/i8259.c @@ -282,6 +282,30 @@ static int __init i8259A_init_sysfs(void) device_initcall(i8259A_init_sysfs); +void mask_8259A(void) +{ + unsigned long flags; + + spin_lock_irqsave(&i8259A_lock, flags); + + outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */ + outb(0xff, PIC_SLAVE_IMR); /* mask all of 8259A-2 */ + + spin_unlock_irqrestore(&i8259A_lock, flags); +} + +void unmask_8259A(void) +{ + unsigned long flags; + + spin_lock_irqsave(&i8259A_lock, flags); + + outb(cached_master_mask, PIC_MASTER_IMR); /* restore master IRQ mask */ + outb(cached_slave_mask, PIC_SLAVE_IMR); /* restore slave IRQ mask */ + + spin_unlock_irqrestore(&i8259A_lock, flags); +} + void init_8259A(int auto_eoi) { unsigned long flags; |