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Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h39
1 files changed, 29 insertions, 10 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index bb7d4792584..474d80d3e6c 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
@@ -183,6 +193,10 @@ static inline int x2apic_enabled(void)
}
#define x2apic_supported() (cpu_has_x2apic)
+static inline void x2apic_force_phys(void)
+{
+ x2apic_phys = 1;
+}
#else
static inline void check_x2apic(void)
{
@@ -194,6 +208,9 @@ static inline int x2apic_enabled(void)
{
return 0;
}
+static inline void x2apic_force_phys(void)
+{
+}
#define x2apic_preenabled 0
#define x2apic_supported() 0
@@ -245,6 +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
@@ -293,7 +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);
@@ -427,7 +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)
@@ -543,9 +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
@@ -555,13 +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)