diff options
Diffstat (limited to 'arch/sparc/kernel/setup.c')
| -rw-r--r-- | arch/sparc/kernel/setup.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c index 3509e4305532..a893a9cc9534 100644 --- a/arch/sparc/kernel/setup.c +++ b/arch/sparc/kernel/setup.c @@ -31,6 +31,7 @@ #include <linux/console.h> #include <linux/spinlock.h> #include <linux/root_dev.h> +#include <linux/cpu.h> #include <asm/system.h> #include <asm/io.h> @@ -331,7 +332,7 @@ void __init setup_arch(char **cmdline_p) if (!root_flags) root_mountflags &= ~MS_RDONLY; ROOT_DEV = old_decode_dev(root_dev); -#ifdef CONFIG_BLK_DEV_INITRD +#ifdef CONFIG_BLK_DEV_RAM rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK; rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0); rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0); @@ -348,6 +349,8 @@ void __init setup_arch(char **cmdline_p) init_mm.context = (unsigned long) NO_CONTEXT; init_task.thread.kregs = &fake_swapper_regs; + smp_setup_cpu_possible_map(); + paging_init(); } @@ -389,6 +392,8 @@ console_initcall(set_preferred_console); extern char *sparc_cpu_type; extern char *sparc_fpu_type; +static int ncpus_probed; + static int show_cpuinfo(struct seq_file *m, void *__unused) { seq_printf(m, @@ -411,7 +416,7 @@ static int show_cpuinfo(struct seq_file *m, void *__unused) romvec->pv_printrev >> 16, romvec->pv_printrev & 0xffff, &cputypval, - num_possible_cpus(), + ncpus_probed, num_online_cpus() #ifndef CONFIG_SMP , cpu_data(0).udelay_val/(500000/HZ), @@ -471,3 +476,30 @@ void sun_do_break(void) int serial_console = -1; int stop_a_enabled = 1; + +static int __init topology_init(void) +{ + int i, ncpus, err; + + /* Count the number of physically present processors in + * the machine, even on uniprocessor, so that /proc/cpuinfo + * output is consistent with 2.4.x + */ + ncpus = 0; + while (!cpu_find_by_instance(ncpus, NULL, NULL)) + ncpus++; + ncpus_probed = ncpus; + + err = 0; + for_each_online_cpu(i) { + struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL); + if (!p) + err = -ENOMEM; + else + register_cpu(p, i, NULL); + } + + return err; +} + +subsys_initcall(topology_init); |