kernel-ark/include/asm-i386/genapic.h
Natalie Protasevich ca05fea6db [PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)
This patch is per Andi's request to remove NO_IOAPIC_CHECK from genapic and
use heuristics to prevent unique I/O APIC ID check for systems that don't
need it.  The patch disables unique I/O APIC ID check for Xeon-based and
other platforms that don't use serial APIC bus for interrupt delivery.
Andi stated that AMD systems don't need unique IO_APIC_IDs either.

Signed-off-by: Natalie Protasevich <Natalie.Protasevich@unisys.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 09:45:09 -07:00

115 lines
3.3 KiB
C

#ifndef _ASM_GENAPIC_H
#define _ASM_GENAPIC_H 1
/*
* Generic APIC driver interface.
*
* An straight forward mapping of the APIC related parts of the
* x86 subarchitecture interface to a dynamic object.
*
* This is used by the "generic" x86 subarchitecture.
*
* Copyright 2003 Andi Kleen, SuSE Labs.
*/
struct mpc_config_translation;
struct mpc_config_bus;
struct mp_config_table;
struct mpc_config_processor;
struct genapic {
char *name;
int (*probe)(void);
int (*apic_id_registered)(void);
cpumask_t (*target_cpus)(void);
int int_delivery_mode;
int int_dest_mode;
int ESR_DISABLE;
int apic_destination_logical;
unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);
unsigned long (*check_apicid_present)(int apicid);
int no_balance_irq;
int no_ioapic_check;
void (*init_apic_ldr)(void);
physid_mask_t (*ioapic_phys_id_map)(physid_mask_t map);
void (*clustered_apic_check)(void);
int (*multi_timer_check)(int apic, int irq);
int (*apicid_to_node)(int logical_apicid);
int (*cpu_to_logical_apicid)(int cpu);
int (*cpu_present_to_apicid)(int mps_cpu);
physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
int (*mpc_apic_id)(struct mpc_config_processor *m,
struct mpc_config_translation *t);
void (*setup_portio_remap)(void);
int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
void (*enable_apic_mode)(void);
u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
/* mpparse */
void (*mpc_oem_bus_info)(struct mpc_config_bus *, char *,
struct mpc_config_translation *);
void (*mpc_oem_pci_bus)(struct mpc_config_bus *,
struct mpc_config_translation *);
/* When one of the next two hooks returns 1 the genapic
is switched to this. Essentially they are additional probe
functions. */
int (*mps_oem_check)(struct mp_config_table *mpc, char *oem,
char *productid);
int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
unsigned (*get_apic_id)(unsigned long x);
unsigned long apic_id_mask;
unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask);
/* ipi */
void (*send_IPI_mask)(cpumask_t mask, int vector);
void (*send_IPI_allbutself)(int vector);
void (*send_IPI_all)(int vector);
};
#define APICFUNC(x) .x = x
#define APIC_INIT(aname, aprobe) { \
.name = aname, \
.probe = aprobe, \
.int_delivery_mode = INT_DELIVERY_MODE, \
.int_dest_mode = INT_DEST_MODE, \
.no_balance_irq = NO_BALANCE_IRQ, \
.ESR_DISABLE = esr_disable, \
.apic_destination_logical = APIC_DEST_LOGICAL, \
APICFUNC(apic_id_registered), \
APICFUNC(target_cpus), \
APICFUNC(check_apicid_used), \
APICFUNC(check_apicid_present), \
APICFUNC(init_apic_ldr), \
APICFUNC(ioapic_phys_id_map), \
APICFUNC(clustered_apic_check), \
APICFUNC(multi_timer_check), \
APICFUNC(apicid_to_node), \
APICFUNC(cpu_to_logical_apicid), \
APICFUNC(cpu_present_to_apicid), \
APICFUNC(apicid_to_cpu_present), \
APICFUNC(mpc_apic_id), \
APICFUNC(setup_portio_remap), \
APICFUNC(check_phys_apicid_present), \
APICFUNC(mpc_oem_bus_info), \
APICFUNC(mpc_oem_pci_bus), \
APICFUNC(mps_oem_check), \
APICFUNC(get_apic_id), \
.apic_id_mask = APIC_ID_MASK, \
APICFUNC(cpu_mask_to_apicid), \
APICFUNC(acpi_madt_oem_check), \
APICFUNC(send_IPI_mask), \
APICFUNC(send_IPI_allbutself), \
APICFUNC(send_IPI_all), \
APICFUNC(enable_apic_mode), \
APICFUNC(phys_pkg_id), \
}
extern struct genapic *genapic;
#endif