diff options
Diffstat (limited to 'arch/sparc/kernel/smp_64.c')
| -rw-r--r-- | arch/sparc/kernel/smp_64.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 5302344e3cb4..567a6a47ba23 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -1373,27 +1373,17 @@ void smp_send_stop(void) void __init setup_per_cpu_areas(void) { - unsigned long base, shift, goal, size, i; + unsigned long size, i, nr_possible_cpus = num_possible_cpus(); char *ptr; /* Copy section for each CPU (we discard the original) */ - goal = PERCPU_ENOUGH_ROOM; + size = ALIGN(PERCPU_ENOUGH_ROOM, PAGE_SIZE); + ptr = alloc_bootmem_pages(size * nr_possible_cpus); - shift = PAGE_SHIFT; - for (size = PAGE_SIZE; size < goal; size <<= 1UL) - shift++; - - ptr = __alloc_bootmem(size * NR_CPUS, PAGE_SIZE, 0); - if (!ptr) { - prom_printf("Cannot allocate per-cpu memory.\n"); - prom_halt(); - } - - base = ptr - __per_cpu_start; - - for (i = 0; i < NR_CPUS; i++, ptr += size) { - __per_cpu_offset(i) = base + (i * size); + for_each_possible_cpu(i) { + __per_cpu_offset(i) = ptr - __per_cpu_start; memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start); + ptr += size; } /* Setup %g5 for the boot cpu. */ |