aboutsummaryrefslogtreecommitdiff
path: root/include/asm-i386/smp.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-i386/smp.h')
-rw-r--r--include/asm-i386/smp.h64
1 files changed, 57 insertions, 7 deletions
diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h
index 6bf0033a301..090abc1da32 100644
--- a/include/asm-i386/smp.h
+++ b/include/asm-i386/smp.h
@@ -8,19 +8,15 @@
#include <linux/kernel.h>
#include <linux/threads.h>
#include <linux/cpumask.h>
-#include <asm/pda.h>
#endif
-#ifdef CONFIG_X86_LOCAL_APIC
-#ifndef __ASSEMBLY__
-#include <asm/fixmap.h>
+#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
-#include <asm/apic.h>
-#endif
#endif
#define BAD_APICID 0xFFu
@@ -52,6 +48,59 @@ extern void cpu_exit_clear(void);
extern void cpu_uninit(void);
#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)
@@ -62,7 +111,8 @@ do { } while (0)
* 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() (read_pda(cpu_number))
+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;