diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-07-06 15:39:14 -0700 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-08-05 12:56:21 +1000 |
| commit | d2cd563ba82c424083b78e0ce97d68bfb04d1242 (patch) | |
| tree | ff4ab6de8b6906a6c955aa51c4ee53868dfafc0a /include | |
| parent | 142b45a72e221537c1bb1995497fef7cdc439e26 (diff) | |
memblock: Add arch function to control coalescing of memblock memory regions
Some archs such as ARM want to avoid coalescing accross things such
as the lowmem/highmem boundary or similar. This provides the option
to control it via an arch callback for which a weak default is provided
which always allows coalescing.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/memblock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 150be938b91..e5e8f9db3a8 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -72,6 +72,8 @@ extern void memblock_dump_all(void); /* Provided by the architecture */ extern phys_addr_t memblock_nid_range(phys_addr_t start, phys_addr_t end, int *nid); +extern int memblock_memory_can_coalesce(phys_addr_t addr1, phys_addr_t size1, + phys_addr_t addr2, phys_addr_t size2); /** * memblock_set_current_limit - Set the current allocation limit to allow |