diff options
Diffstat (limited to 'arch/sparc64/mm/init.c')
| -rw-r--r-- | arch/sparc64/mm/init.c | 35 |
1 files changed, 16 insertions, 19 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 8c2b50e8abc6..3c7b9471eafb 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -160,6 +160,7 @@ extern unsigned int sparc_ramdisk_image; extern unsigned int sparc_ramdisk_size; struct page *mem_map_zero __read_mostly; +EXPORT_SYMBOL(mem_map_zero); unsigned int sparc64_highest_unlocked_tlb_ent __read_mostly; @@ -609,8 +610,6 @@ static void __init remap_kernel(void) static void __init inherit_prom_mappings(void) { - read_obp_translations(); - /* Now fixup OBP's idea about where we really are mapped. */ printk("Remapping the kernel... "); remap_kernel(); @@ -769,7 +768,10 @@ static void __init find_ramdisk(unsigned long phys_base) initrd_start = ramdisk_image; initrd_end = ramdisk_image + sparc_ramdisk_size; - lmb_reserve(initrd_start, initrd_end); + lmb_reserve(initrd_start, sparc_ramdisk_size); + + initrd_start += PAGE_OFFSET; + initrd_end += PAGE_OFFSET; } #endif } @@ -1743,7 +1745,17 @@ void __init paging_init(void) lmb_init(); - /* Find available physical memory... */ + /* Find available physical memory... + * + * Read it twice in order to work around a bug in openfirmware. + * The call to grab this table itself can cause openfirmware to + * allocate memory, which in turn can take away some space from + * the list of available memory. Reading it twice makes sure + * we really do get the final value. + */ + read_obp_translations(); + read_obp_memory("reg", &pall[0], &pall_ents); + read_obp_memory("available", &pavail[0], &pavail_ents); read_obp_memory("available", &pavail[0], &pavail_ents); phys_base = 0xffffffffffffffffUL; @@ -1784,8 +1796,6 @@ void __init paging_init(void) inherit_prom_mappings(); - read_obp_memory("reg", &pall[0], &pall_ents); - init_kpte_bitmap(); /* Ok, we can use our TLB miss and window trap handlers safely. */ @@ -2361,16 +2371,3 @@ void __flush_tlb_all(void) __asm__ __volatile__("wrpr %0, 0, %%pstate" : : "r" (pstate)); } - -#ifdef CONFIG_MEMORY_HOTPLUG - -void online_page(struct page *page) -{ - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalram_pages++; - num_physpages++; -} - -#endif /* CONFIG_MEMORY_HOTPLUG */ |