[S390] More cleanup for struct _lowcore
Remove cpu_id from lowcore and replace addr_t with __u64.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 0729f36..ecb2d02 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -18,24 +18,42 @@
#include <asm/lowcore.h>
#include <asm/param.h>
+static DEFINE_PER_CPU(struct cpuid, cpu_id);
+
+/*
+ * cpu_init - initializes state that is per-CPU.
+ */
+void __cpuinit cpu_init(void)
+{
+ struct cpuid *id = &per_cpu(cpu_id, smp_processor_id());
+
+ get_cpu_id(id);
+ atomic_inc(&init_mm.mm_count);
+ current->active_mm = &init_mm;
+ BUG_ON(current->mm);
+ enter_lazy_tlb(&init_mm, current);
+}
+
+/*
+ * print_cpu_info - print basic information about a cpu
+ */
void __cpuinit print_cpu_info(void)
{
+ struct cpuid *id = &per_cpu(cpu_id, smp_processor_id());
+
pr_info("Processor %d started, address %d, identification %06X\n",
- S390_lowcore.cpu_nr, S390_lowcore.cpu_addr,
- S390_lowcore.cpu_id.ident);
+ S390_lowcore.cpu_nr, S390_lowcore.cpu_addr, id->ident);
}
/*
* show_cpuinfo - Get information on one CPU for use by procfs.
*/
-
static int show_cpuinfo(struct seq_file *m, void *v)
{
static const char *hwcap_str[10] = {
"esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp",
"edat", "etf3eh", "highgprs"
};
- struct _lowcore *lc;
unsigned long n = (unsigned long) v - 1;
int i;
@@ -55,19 +73,12 @@
}
if (cpu_online(n)) {
-#ifdef CONFIG_SMP
- lc = (smp_processor_id() == n) ?
- &S390_lowcore : lowcore_ptr[n];
-#else
- lc = &S390_lowcore;
-#endif
+ struct cpuid *id = &per_cpu(cpu_id, n);
seq_printf(m, "processor %li: "
"version = %02X, "
"identification = %06X, "
"machine = %04X\n",
- n, lc->cpu_id.version,
- lc->cpu_id.ident,
- lc->cpu_id.machine);
+ n, id->version, id->ident, id->machine);
}
preempt_enable();
return 0;