diff options
Diffstat (limited to 'arch/m68k/mm/motorola.c')
| -rw-r--r-- | arch/m68k/mm/motorola.c | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index fc16190ec2d6..2bb006bdc31c 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -45,6 +45,31 @@ unsigned long mm_cachebits; EXPORT_SYMBOL(mm_cachebits); #endif +/* Prior to calling these routines, the page should have been flushed + * from both the cache and ATC, or the CPU might not notice that the + * cache setting for the page has been changed. -jskov + */ +static inline void nocache_page(void *vaddr) +{ + unsigned long addr = (unsigned long)vaddr; + + if (CPU_IS_040_OR_060) { + pte_t *ptep = virt_to_kpte(addr); + + *ptep = pte_mknocache(*ptep); + } +} + +static inline void cache_page(void *vaddr) +{ + unsigned long addr = (unsigned long)vaddr; + + if (CPU_IS_040_OR_060) { + pte_t *ptep = virt_to_kpte(addr); + + *ptep = pte_mkcache(*ptep); + } +} /* * Motorola 680x0 user's manual recommends using uncached memory for address @@ -365,7 +390,7 @@ static void __init map_node(int node) */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = { 0, }; + unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, }; unsigned long min_addr, max_addr; unsigned long addr; int i; @@ -386,7 +411,7 @@ void __init paging_init(void) min_addr = m68k_memory[0].addr; max_addr = min_addr + m68k_memory[0].size; - memblock_add(m68k_memory[0].addr, m68k_memory[0].size); + memblock_add_node(m68k_memory[0].addr, m68k_memory[0].size, 0); for (i = 1; i < m68k_num_memory;) { if (m68k_memory[i].addr < min_addr) { printk("Ignoring memory chunk at 0x%lx:0x%lx before the first chunk\n", @@ -397,7 +422,7 @@ void __init paging_init(void) (m68k_num_memory - i) * sizeof(struct m68k_mem_info)); continue; } - memblock_add(m68k_memory[i].addr, m68k_memory[i].size); + memblock_add_node(m68k_memory[i].addr, m68k_memory[i].size, i); addr = m68k_memory[i].addr + m68k_memory[i].size; if (addr > max_addr) max_addr = addr; @@ -448,11 +473,10 @@ void __init paging_init(void) #ifdef DEBUG printk ("before free_area_init\n"); #endif - for (i = 0; i < m68k_num_memory; i++) { - zones_size[ZONE_DMA] = m68k_memory[i].size >> PAGE_SHIFT; - free_area_init_node(i, zones_size, - m68k_memory[i].addr >> PAGE_SHIFT, NULL); + for (i = 0; i < m68k_num_memory; i++) if (node_present_pages(i)) node_set_state(i, N_NORMAL_MEMORY); - } + + max_zone_pfn[ZONE_DMA] = memblock_end_of_DRAM(); + free_area_init(max_zone_pfn); } |