diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 29d4dde65c45..c781bbcf7338 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -249,7 +249,7 @@ static int __init mark_nonram_nosave(void) */ void __init paging_init(void) { - unsigned long total_ram = memblock_phys_mem_size(); + unsigned long long total_ram = memblock_phys_mem_size(); phys_addr_t top_of_ram = memblock_end_of_DRAM(); unsigned long max_zone_pfns[MAX_NR_ZONES]; @@ -269,7 +269,7 @@ void __init paging_init(void) kmap_prot = PAGE_KERNEL; #endif /* CONFIG_HIGHMEM */ - printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%lx\n", + printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%llx\n", (unsigned long long)top_of_ram, total_ram); printk(KERN_DEBUG "Memory hole size: %ldMB\n", (long int)((top_of_ram - total_ram) >> 20)); @@ -337,8 +337,9 @@ void __init mem_init(void) highmem_mapnr = lowmem_end_addr >> PAGE_SHIFT; for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) { + phys_addr_t paddr = (phys_addr_t)pfn << PAGE_SHIFT; struct page *page = pfn_to_page(pfn); - if (memblock_is_reserved(pfn << PAGE_SHIFT)) + if (memblock_is_reserved(paddr)) continue; ClearPageReserved(page); init_page_count(page); @@ -352,6 +353,15 @@ void __init mem_init(void) } #endif /* CONFIG_HIGHMEM */ +#if defined(CONFIG_PPC_FSL_BOOK3E) && !defined(CONFIG_SMP) + /* + * If smp is enabled, next_tlbcam_idx is initialized in the cpu up + * functions.... do it here for the non-smp case. + */ + per_cpu(next_tlbcam_idx, smp_processor_id()) = + (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) - 1; +#endif + printk(KERN_INFO "Memory: %luk/%luk available (%luk kernel code, " "%luk reserved, %luk data, %luk bss, %luk init)\n", nr_free_pages() << (PAGE_SHIFT-10), @@ -382,6 +392,25 @@ void __init mem_init(void) mem_init_done = 1; } +void free_initmem(void) +{ + unsigned long addr; + + ppc_md.progress = ppc_printk_progress; + + addr = (unsigned long)__init_begin; + for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) { + memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); + totalram_pages++; + } + pr_info("Freeing unused kernel memory: %luk freed\n", + ((unsigned long)__init_end - + (unsigned long)__init_begin) >> 10); +} + #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { |