Commit graph

12 commits

Author SHA1 Message Date
Yinghai Lu
16c36f743b x86, memblock: Remove __memblock_x86_find_in_range_size()
Fold it into memblock_x86_find_in_range(), and change bad_addr_size()
to check_reserve_memblock().

So whole memblock_x86_find_in_range_size() code is more readable.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4CAA4DEC.4000401@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-10-05 21:45:43 -07:00
Yinghai Lu
1d931264af x86-32, memblock: Make add_highpages honor early reserved ranges
Originally the only early reserved range that is overlapped with high
pages is "KVA RAM", but we already do remove that from the active ranges.

However, It turns out Xen could have that kind of overlapping to support memory
ballooning.x

So we need to make add_highpage_with_active_regions() to subtract
memblock reserved just like low ram; this is the proper design anyway.

In this patch, refactering get_freel_all_memory_range() to make it can
be used by add_highpage_with_active_regions().  Also we don't need to
remove "KVA RAM" from active ranges.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4CABB183.1040607@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-10-05 21:44:35 -07:00
Yinghai Lu
774ea0bcb2 x86: Remove old bootmem code
Requested by Ingo, Thomas and HPA.

The old bootmem code is no longer necessary, and the transition is
complete.  Remove it.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:14:37 -07:00
Yinghai Lu
301ff3e88e x86, memblock: Use memblock_debug to control debug message print out
Also let memblock_x86_reserve_range/memblock_x86_free_range could print out name if memblock=debug is
specified

will also print ther name when reserve_memblock_area/free_memblock_area are called.

-v2: according to Ingo, put " if (memblock_debug) " in one place

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:11:35 -07:00
Yinghai Lu
e82d42be24 x86, memblock: Add memblock_x86_memory_in_range()
It will return memory size in specified range according to memblock.memory.region

Try to share some code with memblock_x86_free_memory_in_range() by passing get_free to
__memblock_x86_memory_in_range().

-v2: Ben want _in_range in the name instead of size

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:11:30 -07:00
Yinghai Lu
b52c17ce85 x86, memblock: Add memblock_x86_free_memory_in_range()
It will return free memory size in specified range.

We can not use memory_size - reserved_size here, because some reserved area
may not be in the scope of memblock.memory.region.

Use memblock.memory.region subtracting memblock.reserved.region to get free range array.
then count size of all free ranges.

-v2: Ben insist on using _in_range

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:11:16 -07:00
Yinghai Lu
6bcc8176d0 x86, memblock: Add memblock_x86_find_in_range_node()
It can be used to find NODE_DATA for numa.

Need to make sure early_node_map[] is filled before it is called, otherwise
it will fallback to memblock_find_in_range(), with node range.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:10:57 -07:00
Yinghai Lu
88ba088c18 x86, memblock: Add memblock_x86_register_active_regions() and memblock_x86_hole_size()
memblock_x86_register_active_regions() will be used to fill early_node_map,
the result will be memblock.memory.region AND numa data

memblock_x86_hole_size will be used to find hole size on memblock.memory.region
with specified range.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:10:52 -07:00
Yinghai Lu
4d5cf86ce1 x86, memblock: Add get_free_all_memory_range()
get_free_all_memory_range is for CONFIG_NO_BOOTMEM=y, and will be called by
free_all_memory_core_early().

It will use early_node_map aka active ranges subtract memblock.reserved to
get all free range, and those ranges will convert to slab pages.

-v4: increase range size

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Jan Beulich <jbeulich@novell.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:10:48 -07:00
Yinghai Lu
9dc5d569c1 x86, memblock: Add memblock_x86_reserve_range/memblock_x86_free_range
They are wrappers for core versions, which take start/end/name instead
of base/size.  This will make x86 conversion eaasier.

could add more debug print out

-v2: change get_max_mapped() to memblock.default_alloc_limit according to Michael
      Ellerman and Ben
     change to memblock_x86_reserve_range and memblock_x86_free_range according to Michael Ellerman
-v3: call check_and_double after reserve/free, so could avoid to use
      find_memblock_area. Suggested by Michael Ellerman

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:10:41 -07:00
Yinghai Lu
27de794365 x86, memblock: Add memblock_x86_to_bootmem()
memblock_x86_to_bootmem() will reserve memblock.reserved.region in
bootmem after bootmem is set up.

We can use it to with all arches that support memblock later.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:08:21 -07:00
Yinghai Lu
fb74fb6db9 x86, memblock: Add memblock_x86_find_in_range_size()
size is returned according free range.
Will be used to find free ranges for early_memtest and memory corruption check

Do not mess it up with lib/memblock.c yet.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-08-27 11:08:06 -07:00