diff options
Diffstat (limited to 'arch/m68k/mm/memory.c')
| -rw-r--r-- | arch/m68k/mm/memory.c | 95 |
1 files changed, 13 insertions, 82 deletions
diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index 559942ce0e1..51bc9d258ed 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c @@ -4,20 +4,19 @@ * Copyright (C) 1995 Hamish Macdonald */ -#include <linux/config.h> +#include <linux/module.h> #include <linux/mm.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/types.h> -#include <linux/slab.h> #include <linux/init.h> #include <linux/pagemap.h> +#include <linux/gfp.h> #include <asm/setup.h> #include <asm/segment.h> #include <asm/page.h> #include <asm/pgalloc.h> -#include <asm/system.h> #include <asm/traps.h> #include <asm/machdep.h> @@ -54,7 +53,7 @@ void __init init_pointer_table(unsigned long ptable) /* unreserve the page so it's possible to free that page */ PD_PAGE(dp)->flags &= ~(1 << PG_reserved); - set_page_count(PD_PAGE(dp), 1); + init_page_count(PD_PAGE(dp)); return; } @@ -94,8 +93,7 @@ pmd_t *get_pointer_table (void) PD_MARKBITS(dp) = mask & ~tmp; if (!PD_MARKBITS(dp)) { /* move to end of list */ - list_del(dp); - list_add_tail(dp, &ptable_list); + list_move_tail(dp, &ptable_list); } return (pmd_t *) (page_address(PD_PAGE(dp)) + off); } @@ -123,73 +121,11 @@ int free_pointer_table (pmd_t *ptable) * move this descriptor to the front of the list, since * it has one or more free tables. */ - list_del(dp); - list_add(dp, &ptable_list); + list_move(dp, &ptable_list); } return 0; } -#ifdef DEBUG_INVALID_PTOV -int mm_inv_cnt = 5; -#endif - -#ifndef CONFIG_SINGLE_MEMORY_CHUNK -/* - * The following two routines map from a physical address to a kernel - * virtual address and vice versa. - */ -unsigned long mm_vtop(unsigned long vaddr) -{ - int i=0; - unsigned long voff = (unsigned long)vaddr - PAGE_OFFSET; - - do { - if (voff < m68k_memory[i].size) { -#ifdef DEBUGPV - printk ("VTOP(%p)=%lx\n", vaddr, - m68k_memory[i].addr + voff); -#endif - return m68k_memory[i].addr + voff; - } - voff -= m68k_memory[i].size; - } while (++i < m68k_num_memory); - - /* As a special case allow `__pa(high_memory)'. */ - if (voff == 0) - return m68k_memory[i-1].addr + m68k_memory[i-1].size; - - return -1; -} -#endif - -#ifndef CONFIG_SINGLE_MEMORY_CHUNK -unsigned long mm_ptov (unsigned long paddr) -{ - int i = 0; - unsigned long poff, voff = PAGE_OFFSET; - - do { - poff = paddr - m68k_memory[i].addr; - if (poff < m68k_memory[i].size) { -#ifdef DEBUGPV - printk ("PTOV(%lx)=%lx\n", paddr, poff + voff); -#endif - return poff + voff; - } - voff += m68k_memory[i].size; - } while (++i < m68k_num_memory); - -#ifdef DEBUG_INVALID_PTOV - if (mm_inv_cnt > 0) { - mm_inv_cnt--; - printk("Invalid use of phys_to_virt(0x%lx) at 0x%p!\n", - paddr, __builtin_return_address(0)); - } -#endif - return -1; -} -#endif - /* invalidate page in both caches */ static inline void clear040(unsigned long paddr) { @@ -266,7 +202,9 @@ static inline void pushcl040(unsigned long paddr) void cache_clear (unsigned long paddr, int len) { - if (CPU_IS_040_OR_060) { + if (CPU_IS_COLDFIRE) { + clear_cf_bcache(0, DCACHE_MAX_ADDR); + } else if (CPU_IS_040_OR_060) { int tmp; /* @@ -301,6 +239,7 @@ void cache_clear (unsigned long paddr, int len) mach_l2_flush(0); #endif } +EXPORT_SYMBOL(cache_clear); /* @@ -312,7 +251,9 @@ void cache_clear (unsigned long paddr, int len) void cache_push (unsigned long paddr, int len) { - if (CPU_IS_040_OR_060) { + if (CPU_IS_COLDFIRE) { + flush_cf_bcache(0, DCACHE_MAX_ADDR); + } else if (CPU_IS_040_OR_060) { int tmp = PAGE_SIZE; /* @@ -353,15 +294,5 @@ void cache_push (unsigned long paddr, int len) mach_l2_flush(1); #endif } +EXPORT_SYMBOL(cache_push); -#ifndef CONFIG_SINGLE_MEMORY_CHUNK -int mm_end_of_chunk (unsigned long addr, int len) -{ - int i; - - for (i = 0; i < m68k_num_memory; i++) - if (m68k_memory[i].addr + m68k_memory[i].size == addr + len) - return 1; - return 0; -} -#endif |