diff options
Diffstat (limited to 'arch/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 586b7adb8e53..474d80d3e6cc 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -66,13 +66,23 @@ static inline void default_inquire_remote_apic(int apicid) } /* + * With 82489DX we can't rely on apic feature bit + * retrieved via cpuid but still have to deal with + * such an apic chip so we assume that SMP configuration + * is found from MP table (64bit case uses ACPI mostly + * which set smp presence flag as well so we are safe + * to use this helper too). + */ +static inline bool apic_from_smp_config(void) +{ + return smp_found_config && !disable_apic; +} + +/* * Basic functions accessing APICs. */ #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> -#else -#define setup_boot_clock setup_boot_APIC_clock -#define setup_secondary_clock setup_secondary_APIC_clock #endif #ifdef CONFIG_X86_64 @@ -252,6 +262,8 @@ static inline void lapic_shutdown(void) { } static inline void init_apic_mappings(void) { } static inline void disable_local_APIC(void) { } static inline void apic_disable(void) { } +# define setup_boot_APIC_clock x86_init_noop +# define setup_secondary_APIC_clock x86_init_noop #endif /* !CONFIG_X86_LOCAL_APIC */ #ifdef CONFIG_X86_64 @@ -300,7 +312,7 @@ struct apic { int (*cpu_present_to_apicid)(int mps_cpu); physid_mask_t (*apicid_to_cpu_present)(int phys_apicid); void (*setup_portio_remap)(void); - int (*check_phys_apicid_present)(int boot_cpu_physical_apicid); + int (*check_phys_apicid_present)(int phys_apicid); void (*enable_apic_mode)(void); int (*phys_pkg_id)(int cpuid_apic, int index_msb); @@ -434,7 +446,7 @@ extern struct apic apic_x2apic_uv_x; DECLARE_PER_CPU(int, x2apic_extra_bits); extern int default_cpu_present_to_apicid(int mps_cpu); -extern int default_check_phys_apicid_present(int boot_cpu_physical_apicid); +extern int default_check_phys_apicid_present(int phys_apicid); #endif static inline void default_wait_for_init_deassert(atomic_t *deassert) @@ -550,9 +562,9 @@ static inline int __default_cpu_present_to_apicid(int mps_cpu) } static inline int -__default_check_phys_apicid_present(int boot_cpu_physical_apicid) +__default_check_phys_apicid_present(int phys_apicid) { - return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map); + return physid_isset(phys_apicid, phys_cpu_present_map); } #ifdef CONFIG_X86_32 @@ -562,13 +574,13 @@ static inline int default_cpu_present_to_apicid(int mps_cpu) } static inline int -default_check_phys_apicid_present(int boot_cpu_physical_apicid) +default_check_phys_apicid_present(int phys_apicid) { - return __default_check_phys_apicid_present(boot_cpu_physical_apicid); + return __default_check_phys_apicid_present(phys_apicid); } #else extern int default_cpu_present_to_apicid(int mps_cpu); -extern int default_check_phys_apicid_present(int boot_cpu_physical_apicid); +extern int default_check_phys_apicid_present(int phys_apicid); #endif static inline physid_mask_t default_apicid_to_cpu_present(int phys_apicid) |