fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-s390 / smp.h

diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index 7e61324..7097c96 100644 (file)
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -5,11 +5,11 @@
  *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
  *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
  *               Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *               Heiko Carstens (heiko.carstens@de.ibm.com)
  */
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
-#include <linux/config.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/bitops.h>
@@ -17,6 +17,8 @@
 #if defined(__KERNEL__) && defined(CONFIG_SMP) && !defined(__ASSEMBLY__)
 
 #include <asm/lowcore.h>
+#include <asm/sigp.h>
+#include <asm/ptrace.h>
 
 /*
   s390 specific smp.c headers
@@ -29,12 +31,9 @@ typedef struct
        __u16      cpu;
 } sigp_info;
 
+extern void smp_setup_cpu_possible_map(void);
 extern int smp_call_function_on(void (*func) (void *info), void *info,
                                int nonatomic, int wait, int cpu);
-
-extern cpumask_t cpu_online_map;
-extern cpumask_t cpu_possible_map;
-
 #define NO_PROC_ID             0xFF            /* No processor magic marker */
 
 /*
@@ -49,24 +48,71 @@ extern cpumask_t cpu_possible_map;
  
 #define PROC_CHANGE_PENALTY    20              /* Schedule penalty */
 
-#define smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
+#define raw_smp_processor_id() (S390_lowcore.cpu_data.cpu_nr)
 
-#define cpu_online(cpu) cpu_isset(cpu, cpu_online_map)
+extern int smp_get_cpu(cpumask_t cpu_map);
+extern void smp_put_cpu(int cpu);
 
-extern __inline__ __u16 hard_smp_processor_id(void)
+static inline __u16 hard_smp_processor_id(void)
 {
         __u16 cpu_address;
  
-        __asm__ ("stap %0\n" : "=m" (cpu_address));
+       asm volatile("stap %0" : "=m" (cpu_address));
         return cpu_address;
 }
 
+/*
+ * returns 1 if cpu is in stopped/check stopped state or not operational
+ * returns 0 otherwise
+ */
+static inline int
+smp_cpu_not_running(int cpu)
+{
+       __u32 status;
+
+       switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+       case sigp_order_code_accepted:
+       case sigp_status_stored:
+               /* Check for stopped and check stop state */
+               if (status & 0x50)
+                       return 1;
+               break;
+       case sigp_not_operational:
+               return 1;
+       default:
+               break;
+       }
+       return 0;
+}
+
 #define cpu_logical_map(cpu) (cpu)
 
+extern int __cpu_disable (void);
+extern void __cpu_die (unsigned int cpu);
+extern void cpu_die (void) __attribute__ ((noreturn));
+extern int __cpu_up (unsigned int cpu);
+
 #endif
 
 #ifndef CONFIG_SMP
-#define smp_call_function_on(func,info,nonatomic,wait,cpu)      ({ 0; })
+static inline int
+smp_call_function_on(void (*func) (void *info), void *info,
+                    int nonatomic, int wait, int cpu)
+{
+       func(info);
+       return 0;
+}
+
+static inline void smp_send_stop(void)
+{
+       /* Disable all interrupts/machine checks */
+       __load_psw_mask(PSW_KERNEL_BITS & ~PSW_MASK_MCHECK);
+}
+
+#define smp_cpu_not_running(cpu)       1
+#define smp_get_cpu(cpu) ({ 0; })
+#define smp_put_cpu(cpu) ({ 0; })
+#define smp_setup_cpu_possible_map()   do { } while (0)
 #endif
 
 #endif