From ecf5cb30c64d2b87cfb29b2a6737b95d501c750d Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Tue, 6 Nov 2007 15:14:45 -0800 Subject: [PATCH] --- yaml --- r: 73415 b: refs/heads/master c: 4b9ddc7cf272a0af321c22ef9c00d76384402d48 h: refs/heads/master i: 73413: 471bca4802a7f74dac07e39923589896f85366c7 73411: b93cca38e477c5fdaedcc90bf7021c040edc2bbc 73407: 56ec095321a04670553efb4a9fe1f6a2558de5ab v: v3 --- [refs] | 2 +- trunk/arch/ia64/mm/contig.c | 74 ++++++++++++++++++++----------------- 2 files changed, 42 insertions(+), 34 deletions(-) diff --git a/[refs] b/[refs] index ad985f981255..4e8c1c3a680a 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 4b07ae9b9d7b05a63e3ece32a666041949b7f421 +refs/heads/master: 4b9ddc7cf272a0af321c22ef9c00d76384402d48 diff --git a/trunk/arch/ia64/mm/contig.c b/trunk/arch/ia64/mm/contig.c index d3c538be466c..7e9c275ea148 100644 --- a/trunk/arch/ia64/mm/contig.c +++ b/trunk/arch/ia64/mm/contig.c @@ -146,6 +146,46 @@ find_bootmap_location (unsigned long start, unsigned long end, void *arg) return 0; } +#ifdef CONFIG_SMP +static void *cpu_data; +/** + * per_cpu_init - setup per-cpu variables + * + * Allocate and setup per-cpu data areas. + */ +void * __cpuinit +per_cpu_init (void) +{ + int cpu; + static int first_time=1; + + /* + * get_free_pages() cannot be used before cpu_init() done. BSP + * allocates "NR_CPUS" pages for all CPUs to avoid that AP calls + * get_zeroed_page(). + */ + if (first_time) { + first_time=0; + for (cpu = 0; cpu < NR_CPUS; cpu++) { + memcpy(cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start); + __per_cpu_offset[cpu] = (char *) cpu_data - __per_cpu_start; + cpu_data += PERCPU_PAGE_SIZE; + per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu]; + } + } + return __per_cpu_start + __per_cpu_offset[smp_processor_id()]; +} + +static inline void +alloc_per_cpu_data(void) +{ + cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS, + PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); +} +#else +#define alloc_per_cpu_data() do { } while (0) +#endif /* CONFIG_SMP */ + /** * find_memory - setup memory map * @@ -182,41 +222,9 @@ find_memory (void) find_initrd(); + alloc_per_cpu_data(); } -#ifdef CONFIG_SMP -/** - * per_cpu_init - setup per-cpu variables - * - * Allocate and setup per-cpu data areas. - */ -void * __cpuinit -per_cpu_init (void) -{ - void *cpu_data; - int cpu; - static int first_time=1; - - /* - * get_free_pages() cannot be used before cpu_init() done. BSP - * allocates "NR_CPUS" pages for all CPUs to avoid that AP calls - * get_zeroed_page(). - */ - if (first_time) { - first_time=0; - cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS, - PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS)); - for (cpu = 0; cpu < NR_CPUS; cpu++) { - memcpy(cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start); - __per_cpu_offset[cpu] = (char *) cpu_data - __per_cpu_start; - cpu_data += PERCPU_PAGE_SIZE; - per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu]; - } - } - return __per_cpu_start + __per_cpu_offset[smp_processor_id()]; -} -#endif /* CONFIG_SMP */ - static int count_pages (u64 start, u64 end, void *arg) {