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authorJoerg Roedel <joro@8bytes.org>2012-09-26 12:44:35 +0200
committerJoerg Roedel <joro@8bytes.org>2013-01-28 10:48:30 +0100
commit1c4248ca4e783e47cc34e313d9f82b4ea52774cc (patch)
treee64dba1b95ad1ed8bbf6b3bb6cd0ec893d3c7d9c /arch/x86/include/asm/io_apic.h
parent336224ba5e4fb42a95d02ab0aa0fdff21649bb38 (diff)
downloadop-kernel-dev-1c4248ca4e783e47cc34e313d9f82b4ea52774cc.zip
op-kernel-dev-1c4248ca4e783e47cc34e313d9f82b4ea52774cc.tar.gz
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/asm/io_apic.h')
-rw-r--r--arch/x86/include/asm/io_apic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 73d8c53..d59e172 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 */
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