This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-i386 / mach-xen / asm / smp.h

diff --git a/include/asm-i386/mach-xen/asm/smp.h b/include/asm-i386/mach-xen/asm/smp.h
new file mode 100644 (file)
index 0000000..4d32919
--- /dev/null
+++ b/include/asm-i386/mach-xen/asm/smp.h
@@ -0,0 +1,104 @@
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+/*
+ * We need the APIC definitions automatically as part of 'smp.h'
+ */
+#ifndef __ASSEMBLY__
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#endif
+
+#ifdef CONFIG_X86_LOCAL_APIC
+#ifndef __ASSEMBLY__
+#include <asm/fixmap.h>
+#include <asm/bitops.h>
+#include <asm/mpspec.h>
+#ifdef CONFIG_X86_IO_APIC
+#include <asm/io_apic.h>
+#endif
+#include <asm/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]
+
+#ifdef CONFIG_HOTPLUG_CPU
+extern void cpu_exit_clear(void);
+extern void cpu_uninit(void);
+#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.
+ */
+#define raw_smp_processor_id() (current_thread_info()->cpu)
+
+extern cpumask_t cpu_possible_map;
+#define cpu_callin_map 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_possible_map);
+}
+
+#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
+
+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
+
+extern int __cpu_disable(void);
+extern void __cpu_die(unsigned int cpu);
+extern void prefill_possible_map(void);
+#endif /* !__ASSEMBLY__ */
+
+#else /* CONFIG_SMP */
+
+#define cpu_physical_id(cpu)           boot_cpu_physical_apicid
+
+#define NO_PROC_ID             0xFF            /* No processor magic marker */
+
+#endif
+#endif