linux-toradex.git/mm/memblock.c, branch v3.15-rc7

mm/memblock.c: use PFN_PHYS()

2014-04-07T23:35:58+00:00

Replace ((phys_addr_t)(x) << PAGE_SHIFT) by pfn macro.

Signed-off-by: Fabian Frederick 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

memblock: use for_each_memblock()

2014-04-07T23:35:58+00:00

This is a small cleanup.

Signed-off-by: Emil Medve 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ARM: 7993/1: mm/memblock: add memblock_get_current_limit

2014-03-12T00:16:56+00:00

Apart from setting the limit of memblock, it's also useful to be able
to get the limit to avoid recalculating it every time. Add the function
to do so.

Acked-by: Catalin Marinas 
Acked-by: Santosh Shilimkar 
Acked-by: Andrew Morton 
Acked-by: Nicolas Pitre 
Signed-off-by: Laura Abbott 
Signed-off-by: Russell King

memblock: add limit checking to memblock_virt_alloc

2014-01-30T00:22:40+00:00

In original bootmem wrapper for memblock, we have limit checking.

Add it to memblock_virt_alloc, to address arm and x86 booting crash.

Signed-off-by: Yinghai Lu 
Cc: Ingo Molnar 
Cc: "H. Peter Anvin" 
Reported-by: Kevin Hilman 
Tested-by: Kevin Hilman 
Reported-by: Olof Johansson 
Tested-by: Olof Johansson 
Reported-by: Konrad Rzeszutek Wilk 
Tested-by: Konrad Rzeszutek Wilk 
Cc: Dave Hansen 
Cc: Santosh Shilimkar 
Cc: "Strashko, Grygorii" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

memblock: don't silently align size in memblock_virt_alloc()

2014-01-28T05:02:39+00:00

In original __alloc_memory_core_early() for bootmem wrapper, we do not
align size silently.

We should not do that, as later free with old size will leave some range
not freed.

It's obvious that code is copied from memblock_base_nid(), and that code
is wrong for the same reason.

Also remove that in memblock_alloc_base.

Signed-off-by: Yinghai Lu 
Acked-by: Santosh Shilimkar 
Cc: Dave Hansen 
Cc: Russell King 
Cc: Konrad Rzeszutek Wilk 
Cc: Ingo Molnar 
Cc: "H. Peter Anvin" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/nobootmem: free_all_bootmem again

2014-01-24T00:36:52+00:00

get_allocated_memblock_reserved_regions_info() should work if it is
compiled in.  Extended the ifdef around
get_allocated_memblock_memory_regions_info() to include
get_allocated_memblock_reserved_regions_info() as well.  Similar changes
in nobootmem.c/free_low_memory_core_early() where the two functions are
called.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Philipp Hachtmann 
Cc: qiuxishi 
Cc: David Howells 
Cc: Daeseok Youn 
Cc: Jiang Liu 
Acked-by: Yinghai Lu 
Cc: Zhang Yanfei 
Cc: Santosh Shilimkar 
Cc: Grygorii Strashko 
Cc: Tang Chen 
Cc: Martin Schwidefsky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: free memblock.memory in free_all_bootmem

2014-01-24T00:36:51+00:00

When calling free_all_bootmem() the free areas under memblock's control
are released to the buddy allocator.  Additionally the reserved list is
freed if it was reallocated by memblock.  The same should apply for the
memory list.

Signed-off-by: Philipp Hachtmann 
Reviewed-by: Tejun Heo 
Cc: Joonsoo Kim 
Cc: Johannes Weiner 
Cc: Tang Chen 
Cc: Toshi Kani 
Cc: Jianguo Wu 
Cc: Yinghai Lu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter

2014-01-22T00:19:48+00:00

Check nid parameter and produce warning if it has deprecated
MAX_NUMNODES value.  Also re-assign NUMA_NO_NODE value to the nid
parameter in this case.

These will help to identify the wrong API usage (the caller) and make
code simpler.

Signed-off-by: Grygorii Strashko 
Signed-off-by: Santosh Shilimkar 
Cc: Yinghai Lu 
Cc: Tejun Heo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/memblock: add memblock memory allocation apis

2014-01-22T00:19:46+00:00

Introduce memblock memory allocation APIs which allow to support PAE or
LPAE extension on 32 bits archs where the physical memory start address
can be beyond 4GB.  In such cases, existing bootmem APIs which operate
on 32 bit addresses won't work and needs memblock layer which operates
on 64 bit addresses.

So we add equivalent APIs so that we can replace usage of bootmem with
memblock interfaces.  Architectures already converted to NO_BOOTMEM use
these new memblock interfaces.  The architectures which are still not
converted to NO_BOOTMEM continue to function as is because we still
maintain the fal lback option of bootmem back-end supporting these new
interfaces.  So no functional change as such.

In long run, once all the architectures moves to NO_BOOTMEM, we can get
rid of bootmem layer completely.  This is one step to remove the core
code dependency with bootmem and also gives path for architectures to
move away from bootmem.

The proposed interface will became active if both CONFIG_HAVE_MEMBLOCK
and CONFIG_NO_BOOTMEM are specified by arch.  In case
!CONFIG_NO_BOOTMEM, the memblock() wrappers will fallback to the
existing bootmem apis so that arch's not converted to NO_BOOTMEM
continue to work as is.

The meaning of MEMBLOCK_ALLOC_ACCESSIBLE and MEMBLOCK_ALLOC_ANYWHERE
is kept same.

[akpm@linux-foundation.org: s/depricated/deprecated/]
Signed-off-by: Grygorii Strashko 
Signed-off-by: Santosh Shilimkar 
Cc: Yinghai Lu 
Cc: Tejun Heo 
Cc: "Rafael J. Wysocki" 
Cc: Arnd Bergmann 
Cc: Christoph Lameter 
Cc: Greg Kroah-Hartman 
Cc: H. Peter Anvin 
Cc: Johannes Weiner 
Cc: KAMEZAWA Hiroyuki 
Cc: Konrad Rzeszutek Wilk 
Cc: Michal Hocko 
Cc: Paul Walmsley 
Cc: Pavel Machek 
Cc: Russell King 
Cc: Tony Lindgren 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm/memblock: switch to use NUMA_NO_NODE instead of MAX_NUMNODES

2014-01-22T00:19:46+00:00

It's recommended to use NUMA_NO_NODE everywhere to select "process any
node" behavior or to indicate that "no node id specified".

Hence, update __next_free_mem_range*() API's to accept both NUMA_NO_NODE
and MAX_NUMNODES, but emit warning once on MAX_NUMNODES, and correct
corresponding API's documentation to describe new behavior.  Also,
update other memblock/nobootmem APIs where MAX_NUMNODES is used
dirrectly.

The change was suggested by Tejun Heo.

Signed-off-by: Grygorii Strashko 
Signed-off-by: Santosh Shilimkar 
Cc: Yinghai Lu 
Cc: Tejun Heo 
Cc: "Rafael J. Wysocki" 
Cc: Arnd Bergmann 
Cc: Christoph Lameter 
Cc: Greg Kroah-Hartman 
Cc: H. Peter Anvin 
Cc: Johannes Weiner 
Cc: KAMEZAWA Hiroyuki 
Cc: Konrad Rzeszutek Wilk 
Cc: Michal Hocko 
Cc: Paul Walmsley 
Cc: Pavel Machek 
Cc: Russell King 
Cc: Tony Lindgren 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds