Commit Graph

10 Commits

Author SHA1 Message Date
Paul Mundt 06225c08ec sh: Fix up the NUMA build for recent LMB changes.
Now that the node 0 initialization code has been overhauled, kill off the
now obsolete setup_memory() bits.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-18 18:15:44 +09:00
Paul Mundt 09e1172317 sh: establish PMB mappings for NUMA nodes.
In the case of NUMA emulation when in range PPNs are being used for
secondary nodes, we need to make sure that the PMB has a mapping for it
before setting up the pgdat. This prevents the MMU from resetting.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-03-03 13:16:31 +09:00
Magnus Damm b25b975846 sh: NUMA lmb fixes
This patch updates the NUMA version of setup_memory()
with UMA code changes and also modifies the last argument
to lmb_alloc_base() to use an address instead of pfn.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:40:44 +09:00
Magnus Damm f3a4c00ad3 sh: fix size calculation for NUMA node 0
Fix the NUMA size calculation for node 0. Do the same
as the UMA version of setup_memory() and use address
instead of pfn when calculating the size.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:40:42 +09:00
Roel Kluin 9016332014 sh: Make sure indexes are positive
The indexes are signed, make sure they are not negative
when we read array elements.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-04 11:48:07 +09:00
Matt Fleming 5084f61a4d sh: Use bootmem ontop of lmb for NUMA
Like the UP case, use lmb as the foundation of memory resource
management on NUMA.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-05 00:32:11 +09:00
Johannes Weiner b61bfa3c46 mm: move bootmem descriptors definition to a single place
There are a lot of places that define either a single bootmem descriptor or an
array of them.  Use only one central array with MAX_NUMNODES items instead.

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:14 -07:00
Magnus Damm 0146ba78b9 sh: add memory resources to /proc/iomem
Add physical memory resources such as System RAM, Kernel code/data/bss
and reserved crash dump area to /proc/iomem. Same strategy as on x86.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-05-08 19:51:51 +09:00
Bernhard Walle 72a7fe3967 Introduce flags for reserve_bootmem()
This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.

This patch:

Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past.  This is to avoid conflicts.

Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-07 08:42:25 -08:00
Paul Mundt b241cb0c88 sh: Support for multiple nodes.
This adds basic support for multiple nodes on SH machines.
This is primarily useful for boards with many different
memory blocks that are otherwise unused (SH7722/SH7785 URAM
and so forth).

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-06-08 02:43:49 +00:00