diff options
Diffstat (limited to 'arch/m68k/mm')
| -rw-r--r-- | arch/m68k/mm/mcfmmu.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c index f58fafe7e4c9..87131cd3bc8f 100644 --- a/arch/m68k/mm/mcfmmu.c +++ b/arch/m68k/mm/mcfmmu.c @@ -27,7 +27,7 @@ mm_context_t next_mmu_context; unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1]; atomic_t nr_free_contexts; struct mm_struct *context_mm[LAST_CONTEXT+1]; -extern unsigned long num_pages; +unsigned long num_pages; /* * ColdFire paging_init derived from sun3. @@ -150,6 +150,35 @@ int cf_tlb_miss(struct pt_regs *regs, int write, int dtlb, int extension_word) return 0; } +void __init cf_bootmem_alloc(void) +{ + unsigned long start_pfn; + unsigned long memstart; + + /* _rambase and _ramend will be naturally page aligned */ + m68k_memory[0].addr = _rambase; + m68k_memory[0].size = _ramend - _rambase; + + /* compute total pages in system */ + num_pages = PFN_DOWN(_ramend - _rambase); + + /* page numbers */ + memstart = PAGE_ALIGN(_ramstart); + min_low_pfn = PFN_DOWN(_rambase); + start_pfn = PFN_DOWN(memstart); + max_pfn = max_low_pfn = PFN_DOWN(_ramend); + high_memory = (void *)_ramend; + + m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6; + module_fixup(NULL, __start_fixup, __stop_fixup); + + /* setup bootmem data */ + m68k_setup_node(0); + memstart += init_bootmem_node(NODE_DATA(0), start_pfn, + min_low_pfn, max_low_pfn); + free_bootmem_node(NODE_DATA(0), memstart, _ramend - memstart); +} + /* * Initialize the context management stuff. * The following was taken from arch/ppc/mmu_context.c |