From e7f5ed8d6e921c6200ce5e2549a86db629f2dd11 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Tue, 19 Aug 2008 20:50:54 -0700 Subject: [PATCH] dyn_array: split dyn_array functions from init/main.c Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- init/Makefile | 2 +- init/dyn_array.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++ init/main.c | 118 -------------------------------------------- 3 files changed, 125 insertions(+), 119 deletions(-) create mode 100644 init/dyn_array.c diff --git a/init/Makefile b/init/Makefile index 4a243df426f..dc5eeca6eb6 100644 --- a/init/Makefile +++ b/init/Makefile @@ -2,7 +2,7 @@ # Makefile for the linux kernel. # -obj-y := main.o version.o mounts.o +obj-y := main.o dyn_array.o version.o mounts.o ifneq ($(CONFIG_BLK_DEV_INITRD),y) obj-y += noinitramfs.o else diff --git a/init/dyn_array.c b/init/dyn_array.c new file mode 100644 index 00000000000..c4cd902a118 --- /dev/null +++ b/init/dyn_array.c @@ -0,0 +1,124 @@ +#include +#include +#include +#include +#include +#include + +void __init pre_alloc_dyn_array(void) +{ +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned long total_size = 0, size, phys; + unsigned long max_align = 1; + struct dyn_array **daa; + char *ptr; + + /* get the total size at first */ + for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) { + struct dyn_array *da = *daa; + + size = da->size * (*da->nr); + print_fn_descriptor_symbol("dyn_array %s ", da->name); + printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n", + da->size, *da->nr, da->align); + total_size += roundup(size, da->align); + if (da->align > max_align) + max_align = da->align; + } + if (total_size) + printk(KERN_DEBUG "dyn_array total_size: %#lx\n", + total_size); + else + return; + + /* allocate them all together */ + max_align = max_t(unsigned long, max_align, PAGE_SIZE); + ptr = __alloc_bootmem_nopanic(total_size, max_align, 0); + if (!ptr) + panic("Can not alloc dyn_alloc\n"); + + phys = virt_to_phys(ptr); + for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) { + struct dyn_array *da = *daa; + + size = da->size * (*da->nr); + print_fn_descriptor_symbol("dyn_array %s ", da->name); + + phys = roundup(phys, da->align); + *da->name = phys_to_virt(phys); + printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size); + + phys += size; + + if (da->init_work) + da->init_work(da); + } +#else +#ifdef CONFIF_GENERIC_HARDIRQS + unsigned int i; + + for (i = 0; i < NR_IRQS; i++) + irq_desc[i].irq = i; +#endif +#endif +} + +unsigned long __init per_cpu_dyn_array_size(unsigned long *align) +{ + unsigned long total_size = 0; +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned long size; + struct dyn_array **daa; + unsigned max_align = 1; + + for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) { + struct dyn_array *da = *daa; + + size = da->size * (*da->nr); + print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name); + printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n", + da->size, *da->nr, da->align); + total_size += roundup(size, da->align); + if (da->align > max_align) + max_align = da->align; + } + if (total_size) { + printk(KERN_DEBUG "per_cpu_dyn_array total_size: %#lx\n", + total_size); + *align = max_align; + } +#endif + return total_size; +} + +void __init per_cpu_alloc_dyn_array(int cpu, char *ptr) +{ +#ifdef CONFIG_HAVE_DYN_ARRAY + unsigned long size, phys; + struct dyn_array **daa; + unsigned long addr; + void **array; + + phys = virt_to_phys(ptr); + for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) { + struct dyn_array *da = *daa; + + size = da->size * (*da->nr); + print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name); + + phys = roundup(phys, da->align); + addr = (unsigned long)da->name; + addr += per_cpu_offset(cpu); + array = (void **)addr; + *array = phys_to_virt(phys); + *da->name = *array; /* so init_work could use it directly */ + printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size); + + phys += size; + + if (da->init_work) { + da->init_work(da); + } + } +#endif +} diff --git a/init/main.c b/init/main.c index 0d2e60144f8..e81cf427d9c 100644 --- a/init/main.c +++ b/init/main.c @@ -542,124 +542,6 @@ void __init __weak thread_info_cache_init(void) { } -void pre_alloc_dyn_array(void) -{ -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned long total_size = 0, size, phys; - unsigned long max_align = 1; - struct dyn_array **daa; - char *ptr; - - /* get the total size at first */ - for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) { - struct dyn_array *da = *daa; - - size = da->size * (*da->nr); - print_fn_descriptor_symbol("dyn_array %s ", da->name); - printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n", - da->size, *da->nr, da->align); - total_size += roundup(size, da->align); - if (da->align > max_align) - max_align = da->align; - } - if (total_size) - printk(KERN_DEBUG "dyn_array total_size: %#lx\n", - total_size); - else - return; - - /* allocate them all together */ - max_align = max_t(unsigned long, max_align, PAGE_SIZE); - ptr = __alloc_bootmem_nopanic(total_size, max_align, 0); - if (!ptr) - panic("Can not alloc dyn_alloc\n"); - - phys = virt_to_phys(ptr); - for (daa = __dyn_array_start ; daa < __dyn_array_end; daa++) { - struct dyn_array *da = *daa; - - size = da->size * (*da->nr); - print_fn_descriptor_symbol("dyn_array %s ", da->name); - - phys = roundup(phys, da->align); - *da->name = phys_to_virt(phys); - printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size); - - phys += size; - - if (da->init_work) - da->init_work(da); - } -#else -#ifdef CONFIF_GENERIC_HARDIRQS - unsigned int i; - - for (i = 0; i < NR_IRQS; i++) - irq_desc[i].irq = i; -#endif -#endif -} - -unsigned long per_cpu_dyn_array_size(unsigned long *align) -{ - unsigned long total_size = 0; -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned long size; - struct dyn_array **daa; - unsigned max_align = 1; - - for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) { - struct dyn_array *da = *daa; - - size = da->size * (*da->nr); - print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name); - printk(KERN_CONT "size:%#lx nr:%d align:%#lx\n", - da->size, *da->nr, da->align); - total_size += roundup(size, da->align); - if (da->align > max_align) - max_align = da->align; - } - if (total_size) { - printk(KERN_DEBUG "per_cpu_dyn_array total_size: %#lx\n", - total_size); - *align = max_align; - } -#endif - return total_size; -} - -void per_cpu_alloc_dyn_array(int cpu, char *ptr) -{ -#ifdef CONFIG_HAVE_DYN_ARRAY - unsigned long size, phys; - struct dyn_array **daa; - unsigned long addr; - void **array; - - phys = virt_to_phys(ptr); - for (daa = __per_cpu_dyn_array_start ; daa < __per_cpu_dyn_array_end; daa++) { - struct dyn_array *da = *daa; - - size = da->size * (*da->nr); - print_fn_descriptor_symbol("per_cpu_dyn_array %s ", da->name); - - phys = roundup(phys, da->align); - addr = (unsigned long)da->name; - addr += per_cpu_offset(cpu); - array = (void **)addr; - *array = phys_to_virt(phys); - *da->name = *array; /* so init_work could use it directly */ - printk(KERN_CONT " ==> [%#lx - %#lx]\n", phys, phys + size); - - phys += size; - - if (da->init_work) { - da->init_work(da); - } - } -#endif -} - asmlinkage void __init start_kernel(void) { char * command_line; -- 2.41.1