-#ifndef _ASM_X86_SMP_H_
-#define _ASM_X86_SMP_H_
+#ifndef ASM_X86__SMP_H
+#define ASM_X86__SMP_H
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
#include <linux/init.h>
#include <asm/percpu.h>
+/*
+ * We need the APIC definitions automatically as part of 'smp.h'
+ */
+#ifdef CONFIG_X86_LOCAL_APIC
+# include <asm/mpspec.h>
+# include <asm/apic.h>
+# ifdef CONFIG_X86_IO_APIC
+# include <asm/io_apic.h>
+# endif
+#endif
+#include <asm/pda.h>
+#include <asm/thread_info.h>
+
extern cpumask_t cpu_callout_map;
+extern cpumask_t cpu_initialized;
+extern cpumask_t cpu_callin_map;
+
+extern void (*mtrr_hook)(void);
+extern void zap_low_mappings(void);
+
+extern int __cpuinit get_local_pda(int cpu);
extern int smp_num_siblings;
extern unsigned int num_processors;
extern cpumask_t cpu_initialized;
-extern u16 x86_cpu_to_apicid_init[];
-extern u16 x86_bios_cpu_apicid_init[];
-extern void *x86_cpu_to_apicid_early_ptr;
-extern void *x86_bios_cpu_apicid_early_ptr;
-
DECLARE_PER_CPU(cpumask_t, cpu_sibling_map);
DECLARE_PER_CPU(cpumask_t, cpu_core_map);
DECLARE_PER_CPU(u16, cpu_llc_id);
-DECLARE_PER_CPU(u16, x86_cpu_to_apicid);
-DECLARE_PER_CPU(u16, x86_bios_cpu_apicid);
+#ifdef CONFIG_X86_32
+DECLARE_PER_CPU(int, cpu_number);
+#endif
-/*
- * Trampoline 80x86 program as an array.
- */
-extern const unsigned char trampoline_data [];
-extern const unsigned char trampoline_end [];
-extern unsigned char *trampoline_base;
+DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid);
+DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid);
/* Static state in head.S used to set up a CPU */
extern struct {
unsigned short ss;
} stack_start;
-extern unsigned long init_rsp;
-extern unsigned long initial_code;
-
struct smp_ops {
void (*smp_prepare_boot_cpu)(void);
void (*smp_prepare_cpus)(unsigned max_cpus);
- int (*cpu_up)(unsigned cpu);
void (*smp_cpus_done)(unsigned max_cpus);
void (*smp_send_stop)(void);
void (*smp_send_reschedule)(int cpu);
- int (*smp_call_function_mask)(cpumask_t mask,
- void (*func)(void *info), void *info,
- int wait);
+
+ int (*cpu_up)(unsigned cpu);
+ int (*cpu_disable)(void);
+ void (*cpu_die)(unsigned int cpu);
+ void (*play_dead)(void);
+
+ void (*send_call_func_ipi)(cpumask_t mask);
+ void (*send_call_func_single_ipi)(int cpu);
};
/* Globals due to paravirt */
return smp_ops.cpu_up(cpu);
}
+static inline int __cpu_disable(void)
+{
+ return smp_ops.cpu_disable();
+}
+
+static inline void __cpu_die(unsigned int cpu)
+{
+ smp_ops.cpu_die(cpu);
+}
+
+static inline void play_dead(void)
+{
+ smp_ops.play_dead();
+}
+
static inline void smp_send_reschedule(int cpu)
{
smp_ops.smp_send_reschedule(cpu);
}
-static inline int smp_call_function_mask(cpumask_t mask,
- void (*func) (void *info), void *info,
- int wait)
+static inline void arch_send_call_function_single_ipi(int cpu)
{
- return smp_ops.smp_call_function_mask(mask, func, info, wait);
+ smp_ops.send_call_func_single_ipi(cpu);
}
+static inline void arch_send_call_function_ipi(cpumask_t mask)
+{
+ smp_ops.send_call_func_ipi(mask);
+}
+
+void cpu_disable_common(void);
void native_smp_prepare_boot_cpu(void);
void native_smp_prepare_cpus(unsigned int max_cpus);
void native_smp_cpus_done(unsigned int max_cpus);
int native_cpu_up(unsigned int cpunum);
+int native_cpu_disable(void);
+void native_cpu_die(unsigned int cpu);
+void native_play_dead(void);
+void play_dead_common(void);
-extern int __cpu_disable(void);
-extern void __cpu_die(unsigned int cpu);
+void native_send_call_func_ipi(cpumask_t mask);
+void native_send_call_func_single_ipi(int cpu);
-extern unsigned disabled_cpus;
extern void prefill_possible_map(void);
-#define SMP_TRAMPOLINE_BASE 0x6000
-extern unsigned long setup_trampoline(void);
-
void smp_store_cpu_info(int id);
#define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu)
+
+/* We don't mark CPUs online until __cpu_up(), so we need another measure */
+static inline int num_booting_cpus(void)
+{
+ return cpus_weight(cpu_callout_map);
+}
#else
+static inline void prefill_possible_map(void)
+{
+}
+#endif /* CONFIG_SMP */
+
+extern unsigned disabled_cpus __cpuinitdata;
+
+#ifdef CONFIG_X86_32_SMP
+/*
+ * This function is needed by all SMP systems. It must _always_ be valid
+ * from the initial startup. We map APIC_BASE very early in page_setup(),
+ * so this is correct in the x86 case.
+ */
+#define raw_smp_processor_id() (x86_read_percpu(cpu_number))
+extern int safe_smp_processor_id(void);
+
+#elif defined(CONFIG_X86_64_SMP)
+#define raw_smp_processor_id() read_pda(cpunumber)
+
+#define stack_smp_processor_id() \
+({ \
+ struct thread_info *ti; \
+ __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
+ ti->cpu; \
+})
+#define safe_smp_processor_id() smp_processor_id()
+
+#else /* !CONFIG_X86_32_SMP && !CONFIG_X86_64_SMP */
#define cpu_physical_id(cpu) boot_cpu_physical_apicid
+#define safe_smp_processor_id() 0
+#define stack_smp_processor_id() 0
#endif
-#ifdef CONFIG_X86_32
-# include "smp_32.h"
-#else
-# include "smp_64.h"
-#endif
+#ifdef CONFIG_X86_LOCAL_APIC
-#ifdef CONFIG_HOTPLUG_CPU
-extern void cpu_exit_clear(void);
-extern void cpu_uninit(void);
-extern void remove_siblinginfo(int cpu);
+#ifndef CONFIG_X86_64
+static inline int logical_smp_processor_id(void)
+{
+ /* we don't want to mark this access volatile - bad code generation */
+ return GET_APIC_LOGICAL_ID(*(u32 *)(APIC_BASE + APIC_LDR));
+}
+
+#include <mach_apicdef.h>
+static inline unsigned int read_apic_id(void)
+{
+ unsigned int reg;
+
+ reg = *(u32 *)(APIC_BASE + APIC_ID);
+
+ return GET_APIC_ID(reg);
+}
#endif
-extern void smp_alloc_memory(void);
-extern void lock_ipi_call_lock(void);
-extern void unlock_ipi_call_lock(void);
+
+# if defined(APIC_DEFINITION) || defined(CONFIG_X86_64)
+extern int hard_smp_processor_id(void);
+# else
+#include <mach_apicdef.h>
+static inline int hard_smp_processor_id(void)
+{
+ /* we don't want to mark this access volatile - bad code generation */
+ return read_apic_id();
+}
+# endif /* APIC_DEFINITION */
+
+#else /* CONFIG_X86_LOCAL_APIC */
+
+# ifndef CONFIG_SMP
+# define hard_smp_processor_id() 0
+# endif
+
+#endif /* CONFIG_X86_LOCAL_APIC */
+
#endif /* __ASSEMBLY__ */
-#endif
+#endif /* ASM_X86__SMP_H */
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