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| author | Yinghai Lu <yinghai@kernel.org> | 2010-07-28 09:38:40 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-08-05 06:56:34 +0400 |
| commit | 5303b68f57c227c27193a14e57dd12be27cd670f (patch) | |
| tree | a7a217f9e3385b2f721cc2ec7ef3413577264e08 | |
| parent | 10d0643988e976360eb3497dcafb55b393b8e480 (diff) | |
| download | linux-5303b68f57c227c27193a14e57dd12be27cd670f.tar.xz | |
memblock: Add memblock_find_in_range()
This is a wrapper for memblock_find_base() using slightly different
arguments (start,end instead of start,size for example) in order to
make it easier to convert existing arch/x86 code.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | include/linux/memblock.h | 2 | ||||
| -rw-r--r-- | mm/memblock.c | 8 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 3978e6a8e824..4df09bdcae42 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -47,6 +47,8 @@ extern int memblock_can_resize; #define memblock_dbg(fmt, ...) \ if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) +u64 memblock_find_in_range(u64 start, u64 end, u64 size, u64 align); + extern void __init memblock_init(void); extern void __init memblock_analyze(void); extern long memblock_add(phys_addr_t base, phys_addr_t size); diff --git a/mm/memblock.c b/mm/memblock.c index a17faea37d47..b7ab10a2ef46 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -162,6 +162,14 @@ static phys_addr_t __init memblock_find_base(phys_addr_t size, phys_addr_t align return MEMBLOCK_ERROR; } +/* + * Find a free area with specified alignment in a specific range. + */ +u64 __init_memblock memblock_find_in_range(u64 start, u64 end, u64 size, u64 align) +{ + return memblock_find_base(size, align, start, end); +} + static void __init_memblock memblock_remove_region(struct memblock_type *type, unsigned long r) { unsigned long i; |