Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[pandora-kernel.git] / arch / arm / mach-realview / platsmp.c

diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c
index 0c7d4ac..fce3596 100644 (file)
--- a/arch/arm/mach-realview/platsmp.c
+++ b/arch/arm/mach-realview/platsmp.c
@@ -17,8 +17,7 @@
 #include <asm/cacheflush.h>
 #include <asm/hardware/arm_scu.h>
 #include <asm/hardware.h>
-
-#include "core.h"
+#include <asm/io.h>
 
 extern void realview_secondary_startup(void);
 
@@ -53,13 +52,14 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
         * core (e.g. timer irq), then they will not have been enabled
         * for us: do so
         */
-       gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE));
+       gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE));
 
        /*
         * let the primary processor know we're out of the
         * pen, then head off into the C entry point
         */
        pen_release = -1;
+       smp_wmb();
 
        /*
         * Synchronise with the boot thread.
@@ -103,6 +103,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
 
        timeout = jiffies + (1 * HZ);
        while (time_before(jiffies, timeout)) {
+               smp_rmb();
                if (pen_release == -1)
                        break;
 
@@ -144,6 +145,18 @@ static void __init poke_milo(void)
        mb();
 }
 
+/*
+ * Initialise the CPU possible map early - this describes the CPUs
+ * which may be present or become present in the system.
+ */
+void __init smp_init_cpus(void)
+{
+       unsigned int i, ncores = get_core_count();
+
+       for (i = 0; i < ncores; i++)
+               cpu_set(i, cpu_possible_map);
+}
+
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
        unsigned int ncores = get_core_count();
@@ -180,14 +193,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
        local_timer_setup(cpu);
 
        /*
-        * Initialise the possible/present maps.
-        * cpu_possible_map describes the set of CPUs which may be present
-        * cpu_present_map describes the set of CPUs populated
+        * Initialise the present map, which describes the set of CPUs
+        * actually populated at the present time.
         */
-       for (i = 0; i < max_cpus; i++) {
-               cpu_set(i, cpu_possible_map);
+       for (i = 0; i < max_cpus; i++)
                cpu_set(i, cpu_present_map);
-       }
 
        /*
         * Do we need any more CPUs? If so, then let them know where