linux-toradex.git/include/linux/lmb.h, branch v2.6.32-rc3

lmb: Also remove __init from lmb_end_of_RAM() declaration in lmb.h

2009-09-01T03:30:14+00:00

My previous patch (commit 4f8ee2c9cc: "lmb: Remove __init from
lmb_end_of_DRAM()") removed __init in lmb.c but missed the fact that it
was also marked as such in the .h

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Linus Torvalds

[POWERPC] Provide walk_memory_resource() for powerpc

2008-04-29T05:57:53+00:00

Provide walk_memory_resource() for 64-bit powerpc.  PowerPC maintains
logical memory region mapping in the lmb.memory structure.  Walk
through these structures and do the callbacks for the contiguous
chunks.

Signed-off-by: Badari Pulavarty 
Cc: Yasunori Goto 
Cc: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[POWERPC] Update lmb data structures for hotplug memory add/remove

2008-04-29T05:57:53+00:00

The powerpc kernel maintains information about logical memory blocks
in the lmb.memory structure, which is initialized and updated at boot
time, but not when memory is added or removed while the kernel is
running.

This adds a hotplug memory notifier which updates lmb.memory when
memory is added or removed.  This information is useful for eHEA
driver to find out the memory layout and holes.

NOTE: No special locking is needed for lmb_add() and lmb_remove().
Calls to these are serialized by caller. (pSeries_reconfig_chain).

Signed-off-by: Badari Pulavarty 
Cc: Yasunori Goto 
Cc: Benjamin Herrenschmidt 
Cc: "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Paul Mackerras

[LMB] Add lmb_alloc_nid()

2008-04-15T11:22:17+00:00

A variant of lmb_alloc() that tries to allocate memory on a specified
NUMA node 'nid' but falls back to normal lmb_alloc() if that fails.

The caller provides a 'nid_range' function pointer which assists the
allocator.  It is given args 'start', 'end', and pointer to integer
'this_nid'.

It places at 'this_nid' the NUMA node id that corresponds to 'start',
and returns the end address within 'start' to 'end' at which memory
assosciated with 'nid' ends.

This callback allows a platform to use lmb_alloc_nid() in just
about any context, even ones in which early_pfn_to_nid() might
not be working yet.

This function will be used by the NUMA setup code on sparc64, and also
it can be used by powerpc, replacing it's hand crafted
"careful_allocation()" function in arch/powerpc/mm/numa.c

If x86 ever converts it's NUMA support over to using the LMB helpers,
it can use this too as it has something entirely similar.

Signed-off-by: David S. Miller 
Signed-off-by: Paul Mackerras

[LMB]: Make lmb support large physical addressing

2008-02-14T00:58:39+00:00

Convert the lmb code to use u64 instead of unsigned long for physical
addresses and sizes.  This is needed to support large amounts of RAM
on 32-bit systems that support 36-bit physical addressing.

Signed-off-by: Becky Bruce 
Signed-off-by: David S. Miller

[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.

2008-02-14T00:56:49+00:00

Signed-off-by: David S. Miller