1 files changed, 182 insertions, 0 deletions

diff --git a/include/asm-x86/smp_32.h b/include/asm-x86/smp_32.h
new file mode 100644
index 000000000000..1f73bde165b1
--- /dev/null
+++ b/include/asm-x86/smp_32.h
@@ -0,0 +1,182 @@
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+/*
+ * We need the APIC definitions automatically as part of 'smp.h'
+ */
+#ifndef __ASSEMBLY__
+#include <linux/kernel.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#endif
+
+#if defined(CONFIG_X86_LOCAL_APIC) && !defined(__ASSEMBLY__)
+#include <asm/bitops.h>
+#include <asm/mpspec.h>
+#include <asm/apic.h>
+#ifdef CONFIG_X86_IO_APIC
+#include <asm/io_apic.h>
+#endif
+#endif
+
+#define BAD_APICID 0xFFu
+#ifdef CONFIG_SMP
+#ifndef __ASSEMBLY__
+
+/*
+ * Private routines/data
+ */
+ 
+extern void smp_alloc_memory(void);
+extern int pic_mode;
+extern int smp_num_siblings;
+extern cpumask_t cpu_sibling_map[];
+extern cpumask_t cpu_core_map[];
+
+extern void (*mtrr_hook) (void);
+extern void zap_low_mappings (void);
+extern void lock_ipi_call_lock(void);
+extern void unlock_ipi_call_lock(void);
+
+#define MAX_APICID 256
+extern u8 x86_cpu_to_apicid[];
+
+#define cpu_physical_id(cpu)    x86_cpu_to_apicid[cpu]
+
+extern void set_cpu_sibling_map(int cpu);
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern void cpu_exit_clear(void);
+extern void cpu_uninit(void);
+extern void remove_siblinginfo(int cpu);
+#endif
+
+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);
+};
+
+extern struct smp_ops smp_ops;
+
+static inline void smp_prepare_boot_cpu(void)
+{
+        smp_ops.smp_prepare_boot_cpu();
+}
+static inline void smp_prepare_cpus(unsigned int max_cpus)
+{
+        smp_ops.smp_prepare_cpus(max_cpus);
+}
+static inline int __cpu_up(unsigned int cpu)
+{
+        return smp_ops.cpu_up(cpu);
+}
+static inline void smp_cpus_done(unsigned int max_cpus)
+{
+        smp_ops.smp_cpus_done(max_cpus);
+}
+
+static inline void smp_send_stop(void)
+{
+        smp_ops.smp_send_stop();
+}
+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)
+{
+        return smp_ops.smp_call_function_mask(mask, func, info, wait);
+}
+
+void native_smp_prepare_boot_cpu(void);
+void native_smp_prepare_cpus(unsigned int max_cpus);
+int native_cpu_up(unsigned int cpunum);
+void native_smp_cpus_done(unsigned int max_cpus);
+
+#ifndef CONFIG_PARAVIRT
+#define startup_ipi_hook(phys_apicid, start_eip, start_esp)             \
+do { } while (0)
+#endif
+
+/*
+ * 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.
+ */
+DECLARE_PER_CPU(int, cpu_number);
+#define raw_smp_processor_id() (x86_read_percpu(cpu_number))
+
+extern cpumask_t cpu_callout_map;
+extern cpumask_t cpu_callin_map;
+extern cpumask_t cpu_possible_map;
+
+/* 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);
+}
+
+extern int safe_smp_processor_id(void);
+extern int __cpu_disable(void);
+extern void __cpu_die(unsigned int cpu);
+extern unsigned int num_processors;
+
+void __cpuinit smp_store_cpu_info(int id);
+
+#endif /* !__ASSEMBLY__ */
+
+#else /* CONFIG_SMP */
+
+#define safe_smp_processor_id()         0
+#define cpu_physical_id(cpu)            boot_cpu_physical_apicid
+
+#define NO_PROC_ID              0xFF            /* No processor magic marker */
+
+#endif /* CONFIG_SMP */
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+#ifdef APIC_DEFINITION
+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 GET_APIC_ID(*(unsigned long *)(APIC_BASE+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 */
+
+extern u8 apicid_2_node[];
+
+#ifdef CONFIG_X86_LOCAL_APIC
+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(*(unsigned long *)(APIC_BASE+APIC_LDR));
+}
+#endif
+#endif
+
+#endif