projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 42d226c7 ST |
1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify it | |
| 3 | * under the terms of the GNU General Public License as published by the | |
| 4 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 5 | * option) any later version. | |
| 6 | */ | |
| 7 | #include <linux/fs.h> | |
| 8 | #include <linux/fcntl.h> | |
| 9 | #include <linux/mm.h> | |
| 10 | ||
| bd92aa01 WZ |
11 | #include <asm/bootinfo.h> |
| 12 | ||
| 5e983ff6 | 13 | #include <loongson.h> |
| 85749d24 | 14 | #include <mem.h> |
| bd92aa01 WZ |
15 | |
| 16 | void __init prom_init_memory(void) | |
| 17 | { | |
| 18 | add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM); | |
| 19 | #ifdef CONFIG_64BIT | |
| 20 | if (highmemsize > 0) | |
| 85749d24 WZ |
21 | add_memory_region(LOONGSON_HIGHMEM_START, |
| 22 | highmemsize << 20, BOOT_MEM_RAM); | |
| bd92aa01 WZ |
23 | #endif /* CONFIG_64BIT */ |
| 24 | } | |
| 25 | ||
| 42d226c7 ST |
26 | /* override of arch/mips/mm/cache.c: __uncached_access */ |
| 27 | int __uncached_access(struct file *file, unsigned long addr) | |
| 28 | { | |
| 29 | if (file->f_flags & O_SYNC) | |
| 30 | return 1; | |
| 31 | ||
| 42d226c7 | 32 | return addr >= __pa(high_memory) || |
| 85749d24 WZ |
33 | ((addr >= LOONGSON_MMIO_MEM_START) && |
| 34 | (addr < LOONGSON_MMIO_MEM_END)); | |
| 42d226c7 | 35 | } |