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Lines 375-380
int mtrr_add_page(unsigned long base, un
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| 375 |
return error; |
375 |
return error; |
| 376 |
} |
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} |
| 377 |
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378 |
static int mtrr_check(unsigned long base, unsigned long size) |
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{ |
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if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { |
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printk(KERN_WARNING |
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"mtrr: size and base must be multiples of 4 kiB\n"); |
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printk(KERN_DEBUG |
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"mtrr: size: 0x%lx base: 0x%lx\n", size, base); |
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dump_stack(); |
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return -1; |
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} |
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return 0; |
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} |
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/** |
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/** |
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* mtrr_add - Add a memory type region |
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* mtrr_add - Add a memory type region |
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* @base: Physical base address of region |
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* @base: Physical base address of region |
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Lines 415-425
int
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mtrr_add(unsigned long base, unsigned long size, unsigned int type, |
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mtrr_add(unsigned long base, unsigned long size, unsigned int type, |
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char increment) |
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char increment) |
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{ |
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{ |
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if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { |
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if (mtrr_check(base, size)) |
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printk(KERN_WARNING "mtrr: size and base must be multiples of 4 kiB\n"); |
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printk(KERN_DEBUG "mtrr: size: 0x%lx base: 0x%lx\n", size, base); |
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return -EINVAL; |
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return -EINVAL; |
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} |
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return mtrr_add_page(base >> PAGE_SHIFT, size >> PAGE_SHIFT, type, |
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return mtrr_add_page(base >> PAGE_SHIFT, size >> PAGE_SHIFT, type, |
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increment); |
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increment); |
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} |
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} |
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Lines 511-521
int mtrr_del_page(int reg, unsigned long
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| 511 |
int |
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int |
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mtrr_del(int reg, unsigned long base, unsigned long size) |
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mtrr_del(int reg, unsigned long base, unsigned long size) |
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{ |
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{ |
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if ((base & (PAGE_SIZE - 1)) || (size & (PAGE_SIZE - 1))) { |
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if (mtrr_check(base, size)) |
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printk(KERN_INFO "mtrr: size and base must be multiples of 4 kiB\n"); |
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printk(KERN_DEBUG "mtrr: size: 0x%lx base: 0x%lx\n", size, base); |
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return -EINVAL; |
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return -EINVAL; |
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} |
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return mtrr_del_page(reg, base >> PAGE_SHIFT, size >> PAGE_SHIFT); |
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return mtrr_del_page(reg, base >> PAGE_SHIFT, size >> PAGE_SHIFT); |
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} |
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} |
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