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x86, io_apic: Introduce set_affinity function pointer

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With interrupt remapping a special function is used to
change the affinity of an IO-APIC interrupt. Abstract this
with a function pointer.

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>
This commit is contained in:
Joerg Roedel
2012-09-26 12:44:39 +02:00
parent 5afba62cc8
commit 373dd7a27f
6 changed files with 22 additions and 19 deletions
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6
arch/x86/include/asm/x86_init.h
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@@ -190,6 +190,9 @@ struct x86_msi_ops {
int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
};
struct irq_data;
struct cpumask;
struct x86_io_apic_ops {
void (*init) (void);
unsigned int (*read) (unsigned int apic, unsigned int reg);
@@ -197,6 +200,9 @@ struct x86_io_apic_ops {
void (*modify) (unsigned int apic, unsigned int reg, unsigned int value);
void (*disable)(void);
void (*print_entries)(unsigned int apic, unsigned int nr_entries);
int (*set_affinity)(struct irq_data *data,
const struct cpumask *mask,
bool force);
};
extern struct x86_init_ops x86_init;