diff options
author | Roman Zippel <zippel@linux-m68k.org> | 2007-05-31 03:40:54 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-31 10:58:14 -0400 |
commit | 12d810c1b8c2b913d48e629e2b5c01d105029839 (patch) | |
tree | b39162d3168f6173af3d0e5790e16eb45a70dfaf /arch/m68k/mm/memory.c | |
parent | 00c541eae7a477e3d1adb1ebf27cccc0bdb5f824 (diff) |
m68k: discontinuous memory support
Fix support for discontinuous memory
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68k/mm/memory.c')
-rw-r--r-- | arch/m68k/mm/memory.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index 13c0b4ad01eb..b7473525b431 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c | |||
@@ -127,67 +127,6 @@ int free_pointer_table (pmd_t *ptable) | |||
127 | return 0; | 127 | return 0; |
128 | } | 128 | } |
129 | 129 | ||
130 | #ifdef DEBUG_INVALID_PTOV | ||
131 | int mm_inv_cnt = 5; | ||
132 | #endif | ||
133 | |||
134 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
135 | /* | ||
136 | * The following two routines map from a physical address to a kernel | ||
137 | * virtual address and vice versa. | ||
138 | */ | ||
139 | unsigned long mm_vtop(unsigned long vaddr) | ||
140 | { | ||
141 | int i=0; | ||
142 | unsigned long voff = (unsigned long)vaddr - PAGE_OFFSET; | ||
143 | |||
144 | do { | ||
145 | if (voff < m68k_memory[i].size) { | ||
146 | #ifdef DEBUGPV | ||
147 | printk ("VTOP(%p)=%lx\n", vaddr, | ||
148 | m68k_memory[i].addr + voff); | ||
149 | #endif | ||
150 | return m68k_memory[i].addr + voff; | ||
151 | } | ||
152 | voff -= m68k_memory[i].size; | ||
153 | } while (++i < m68k_num_memory); | ||
154 | |||
155 | /* As a special case allow `__pa(high_memory)'. */ | ||
156 | if (voff == 0) | ||
157 | return m68k_memory[i-1].addr + m68k_memory[i-1].size; | ||
158 | |||
159 | return -1; | ||
160 | } | ||
161 | EXPORT_SYMBOL(mm_vtop); | ||
162 | |||
163 | unsigned long mm_ptov (unsigned long paddr) | ||
164 | { | ||
165 | int i = 0; | ||
166 | unsigned long poff, voff = PAGE_OFFSET; | ||
167 | |||
168 | do { | ||
169 | poff = paddr - m68k_memory[i].addr; | ||
170 | if (poff < m68k_memory[i].size) { | ||
171 | #ifdef DEBUGPV | ||
172 | printk ("PTOV(%lx)=%lx\n", paddr, poff + voff); | ||
173 | #endif | ||
174 | return poff + voff; | ||
175 | } | ||
176 | voff += m68k_memory[i].size; | ||
177 | } while (++i < m68k_num_memory); | ||
178 | |||
179 | #ifdef DEBUG_INVALID_PTOV | ||
180 | if (mm_inv_cnt > 0) { | ||
181 | mm_inv_cnt--; | ||
182 | printk("Invalid use of phys_to_virt(0x%lx) at 0x%p!\n", | ||
183 | paddr, __builtin_return_address(0)); | ||
184 | } | ||
185 | #endif | ||
186 | return -1; | ||
187 | } | ||
188 | EXPORT_SYMBOL(mm_ptov); | ||
189 | #endif | ||
190 | |||
191 | /* invalidate page in both caches */ | 130 | /* invalidate page in both caches */ |
192 | static inline void clear040(unsigned long paddr) | 131 | static inline void clear040(unsigned long paddr) |
193 | { | 132 | { |
@@ -354,15 +293,3 @@ void cache_push (unsigned long paddr, int len) | |||
354 | } | 293 | } |
355 | EXPORT_SYMBOL(cache_push); | 294 | EXPORT_SYMBOL(cache_push); |
356 | 295 | ||
357 | #ifndef CONFIG_SINGLE_MEMORY_CHUNK | ||
358 | int mm_end_of_chunk (unsigned long addr, int len) | ||
359 | { | ||
360 | int i; | ||
361 | |||
362 | for (i = 0; i < m68k_num_memory; i++) | ||
363 | if (m68k_memory[i].addr + m68k_memory[i].size == addr + len) | ||
364 | return 1; | ||
365 | return 0; | ||
366 | } | ||
367 | EXPORT_SYMBOL(mm_end_of_chunk); | ||
368 | #endif | ||