Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6] / arch / parisc / kernel / processor.c

diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 7c056dcebf553c764b36fd45fccee6a543f98a8e..370086fb8333a8a1b5b6f9fdb17418759dc9e064 100644 (file)
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -33,7 +33,7 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/cpu.h>
-
+#include <asm/param.h>
 #include <asm/cache.h>
 #include <asm/hardware.h>      /* for register_parisc_driver() stuff */
 #include <asm/processor.h>
@@ -48,6 +48,8 @@ EXPORT_SYMBOL(boot_cpu_data);
 
 struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
 
+extern int update_cr16_clocksource(void);      /* from time.c */
+
 /*
 **     PARISC CPU driver - claim "device" and initialize CPU data structures.
 **
@@ -61,7 +63,7 @@ struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
 ** will call register_parisc_driver(&cpu_driver) before calling do_inventory().
 **
 ** The goal of consolidating CPU initialization into one place is
-** to make sure all CPU's get initialized the same way.
+** to make sure all CPUs get initialized the same way.
 ** The code path not shared is how PDC hands control of the CPU to the OS.
 ** The initialization of OS data structures is the same (done below).
 */
@@ -74,13 +76,18 @@ struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly;
  * (return 1).  If so, initialize the chip and tell other partners in crime 
  * they have work to do.
  */
-static int __init processor_probe(struct parisc_device *dev)
+static int __cpuinit processor_probe(struct parisc_device *dev)
 {
        unsigned long txn_addr;
        unsigned long cpuid;
        struct cpuinfo_parisc *p;
 
-#ifndef CONFIG_SMP
+#ifdef CONFIG_SMP
+       if (num_online_cpus() >= NR_CPUS) {
+               printk(KERN_INFO "num_online_cpus() >= NR_CPUS\n");
+               return 1;
+       }
+#else
        if (boot_cpu_data.cpu_count > 0) {
                printk(KERN_INFO "CONFIG_SMP=n  ignoring additional CPUs\n");
                return 1;
@@ -164,7 +171,7 @@ static int __init processor_probe(struct parisc_device *dev)
 #endif
 
        /*
-       ** CONFIG_SMP: init_smp_config() will attempt to get CPU's into
+       ** CONFIG_SMP: init_smp_config() will attempt to get CPUs into
        ** OS control. RENDEZVOUS is the default state - see mem_set above.
        **      p->state = STATE_RENDEZVOUS;
        */
@@ -198,6 +205,12 @@ static int __init processor_probe(struct parisc_device *dev)
        }
 #endif
 
+       /* If we've registered more than one cpu,
+        * we'll use the jiffies clocksource since cr16
+        * is not synchronized between CPUs.
+        */
+       update_cr16_clocksource();
+
        return 0;
 }
 
@@ -326,7 +339,7 @@ int __init init_per_cpu(int cpunum)
 }
 
 /*
- * Display cpu info for all cpu's.
+ * Display CPU info for all CPUs.
  */
 int
 show_cpuinfo (struct seq_file *m, void *v)
@@ -373,19 +386,19 @@ show_cpuinfo (struct seq_file *m, void *v)
        return 0;
 }
 
-static struct parisc_device_id processor_tbl[] __read_mostly = {
+static const struct parisc_device_id processor_tbl[] = {
        { HPHW_NPROC, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, SVERSION_ANY_ID },
        { 0, }
 };
 
-static struct parisc_driver cpu_driver __read_mostly = {
+static struct parisc_driver cpu_driver = {
        .name           = "CPU",
        .id_table       = processor_tbl,
        .probe          = processor_probe
 };
 
 /**
- * processor_init - Processor initalization procedure.
+ * processor_init - Processor initialization procedure.
  *
  * Register this driver.
  */