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| author | Joerg Roedel <joro@8bytes.org> | 2012-09-26 12:44:35 +0200 |
|---|---|---|
| committer | Joerg Roedel <joro@8bytes.org> | 2013-01-28 10:48:30 +0100 |
| commit | 1c4248ca4e783e47cc34e313d9f82b4ea52774cc (patch) | |
| tree | e64dba1b95ad1ed8bbf6b3bb6cd0ec893d3c7d9c /arch/x86/include | |
| parent | 336224ba5e4fb42a95d02ab0aa0fdff21649bb38 (diff) | |
| download | linux-3.10-1c4248ca4e783e47cc34e313d9f82b4ea52774cc.tar.gz linux-3.10-1c4248ca4e783e47cc34e313d9f82b4ea52774cc.tar.bz2 linux-3.10-1c4248ca4e783e47cc34e313d9f82b4ea52774cc.zip | |
x86, io_apic: Introduce x86_io_apic_ops.disable()
This function pointer is used to call a system-specific
function for disabling the IO-APIC. Currently this is used
for IRQ remapping which has its own disable routine.
Also introduce the necessary infrastructure in the interrupt
remapping code to overwrite this and other function pointers
as necessary by interrupt remapping.
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/io_apic.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/x86_init.h | 9 |
2 files changed, 7 insertions, 4 deletions
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h index 73d8c5398ea..d59e17232c4 100644 --- a/arch/x86/include/asm/io_apic.h +++ b/arch/x86/include/asm/io_apic.h @@ -179,6 +179,7 @@ extern void __init native_io_apic_init_mappings(void); extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg); extern void native_io_apic_write(unsigned int apic, unsigned int reg, unsigned int val); extern void native_io_apic_modify(unsigned int apic, unsigned int reg, unsigned int val); +extern void native_disable_io_apic(void); static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg) { @@ -223,6 +224,7 @@ static inline void disable_ioapic_support(void) { } #define native_io_apic_read NULL #define native_io_apic_write NULL #define native_io_apic_modify NULL +#define native_disable_io_apic NULL #endif #endif /* _ASM_X86_IO_APIC_H */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 57693498519..b1d2d6aefcc 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -190,10 +190,11 @@ struct x86_msi_ops { }; struct x86_io_apic_ops { - void (*init) (void); - unsigned int (*read) (unsigned int apic, unsigned int reg); - void (*write) (unsigned int apic, unsigned int reg, unsigned int value); - void (*modify)(unsigned int apic, unsigned int reg, unsigned int value); + void (*init) (void); + unsigned int (*read) (unsigned int apic, unsigned int reg); + void (*write) (unsigned int apic, unsigned int reg, unsigned int value); + void (*modify) (unsigned int apic, unsigned int reg, unsigned int value); + void (*disable)(void); }; extern struct x86_init_ops x86_init; |