fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / mips / pmc-sierra / yosemite / smp.c

diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 1d3b073..305491e 100644 (file)
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -3,13 +3,11 @@
 
 #include <asm/pmon.h>
 #include <asm/titan_dep.h>
-
-extern unsigned int (*mips_hpt_read)(void);
-extern void (*mips_hpt_init)(unsigned int);
+#include <asm/time.h>
 
 #define LAUNCHSTACK_SIZE 256
 
-static spinlock_t launch_lock __initdata;
+static __initdata DEFINE_SPINLOCK(launch_lock);
 
 static unsigned long secondary_sp __initdata;
 static unsigned long secondary_gp __initdata;
@@ -50,37 +48,25 @@ void __init prom_grab_secondary(void)
  * We don't want to start the secondary CPU yet nor do we have a nice probing
  * feature in PMON so we just assume presence of the secondary core.
  */
-static char maxcpus_string[] __initdata =
-       KERN_WARNING "max_cpus set to 0; using 1 instead\n";
-
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
 {
-       int enabled = 0, i;
-
-       if (max_cpus == 0) {
-               printk(maxcpus_string);
-               max_cpus = 1;
-       }
+       int i;
 
        cpus_clear(phys_cpu_present_map);
 
        for (i = 0; i < 2; i++) {
-               if (i == max_cpus)
-                       break;
-
-               /*
-                * The boot CPU
-                */
                cpu_set(i, phys_cpu_present_map);
                __cpu_number_map[i]     = i;
                __cpu_logical_map[i]    = i;
-               enabled++;
        }
+}
 
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
        /*
         * Be paranoid.  Enable the IPI only if we're really about to go SMP.
         */
-       if (enabled > 1)
+       if (cpus_weight(cpu_possible_map))
                set_c0_status(STATUSF_IP5);
 }
 
@@ -93,8 +79,8 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
  */
 void prom_boot_secondary(int cpu, struct task_struct *idle)
 {
-       unsigned long gp = (unsigned long) idle->thread_info;
-       unsigned long sp = gp + THREAD_SIZE - 32;
+       unsigned long gp = (unsigned long) task_thread_info(idle);
+       unsigned long sp = __KSTK_TOS(idle);
 
        secondary_sp = sp;
        secondary_gp = gp;
@@ -113,8 +99,6 @@ void prom_cpus_done(void)
  */
 void prom_init_secondary(void)
 {
-       mips_hpt_init(mips_hpt_read());
-
        set_c0_status(ST0_CO | ST0_IE | ST0_IM);
 }
 
@@ -122,7 +106,7 @@ void prom_smp_finish(void)
 {
 }
 
-asmlinkage void titan_mailbox_irq(struct pt_regs *regs)
+asmlinkage void titan_mailbox_irq(void)
 {
        int cpu = smp_processor_id();
        unsigned long status;