diff options
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/mm/init_32.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index e786fe0f0059..92634d4e440c 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -102,6 +102,36 @@ static unsigned long calc_max_low_pfn(void) return tmp; } +static void __init find_ramdisk(unsigned long end_of_phys_memory) +{ +#ifdef CONFIG_BLK_DEV_INITRD + unsigned long size; + + /* Now have to check initial ramdisk, so that it won't pass + * the end of memory + */ + if (sparc_ramdisk_image) { + if (sparc_ramdisk_image >= (unsigned long)&_end - 2 * PAGE_SIZE) + sparc_ramdisk_image -= KERNBASE; + initrd_start = sparc_ramdisk_image + phys_base; + initrd_end = initrd_start + sparc_ramdisk_size; + if (initrd_end > end_of_phys_memory) { + printk(KERN_CRIT "initrd extends beyond end of memory " + "(0x%016lx > 0x%016lx)\ndisabling initrd\n", + initrd_end, end_of_phys_memory); + initrd_start = 0; + } else { + /* Reserve the initrd image area. */ + size = initrd_end - initrd_start; + memblock_reserve(initrd_start, size); + + initrd_start = (initrd_start - phys_base) + PAGE_OFFSET; + initrd_end = (initrd_end - phys_base) + PAGE_OFFSET; + } + } +#endif +} + unsigned long __init bootmem_init(unsigned long *pages_avail) { unsigned long start_pfn, bytes_avail, size; @@ -160,32 +190,8 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) high_pages >> (20 - PAGE_SHIFT)); } -#ifdef CONFIG_BLK_DEV_INITRD - /* Now have to check initial ramdisk, so that it won't pass - * the end of memory - */ - if (sparc_ramdisk_image) { - if (sparc_ramdisk_image >= (unsigned long)&_end - 2 * PAGE_SIZE) - sparc_ramdisk_image -= KERNBASE; - initrd_start = sparc_ramdisk_image + phys_base; - initrd_end = initrd_start + sparc_ramdisk_size; - if (initrd_end > end_of_phys_memory) { - printk(KERN_CRIT "initrd extends beyond end of memory " - "(0x%016lx > 0x%016lx)\ndisabling initrd\n", - initrd_end, end_of_phys_memory); - initrd_start = 0; - } - } - - if (initrd_start) { - /* Reserve the initrd image area. */ - size = initrd_end - initrd_start; - memblock_reserve(initrd_start, size); + find_ramdisk(end_of_phys_memory); - initrd_start = (initrd_start - phys_base) + PAGE_OFFSET; - initrd_end = (initrd_end - phys_base) + PAGE_OFFSET; - } -#endif /* Reserve the kernel text/data/bss. */ size = (start_pfn << PAGE_SHIFT) - phys_base; memblock_reserve(phys_base, size); |