X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-s390%2Fsmp.h;h=7097c96ed026ff41fb9b4467be56e6c18bdac9df;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=e992bd6b59de945bb9ca8790c14d18d018c6e435;hpb=70790a4b5cd6c0291e5b1a2836e2832d46036ac6;p=linux-2.6.git

diff --git a/include/asm-s390/smp.h b/include/asm-s390/smp.h
index e992bd6b5..7097c96ed 100644
--- a/include/asm-s390/smp.h
+++ b/include/asm-s390/smp.h
@@ -10,7 +10,6 @@
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
-#include <linux/config.h>
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/bitops.h>
@@ -18,6 +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
@@ -30,6 +31,7 @@ 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);
 #define NO_PROC_ID		0xFF		/* No processor magic marker */
@@ -46,19 +48,43 @@ extern int smp_call_function_on(void (*func) (void *info), void *info,
  
 #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)
 
 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);
@@ -76,8 +102,17 @@ smp_call_function_on(void (*func) (void *info), void *info,
 	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