linux/arch
Suzuki Poulose 674bfa4855 powerpc/44x: Kexec support for PPC440X chipsets
This patch adds kexec support for PPC440 based chipsets.  This work is based
on the KEXEC patches for FSL BookE.

The FSL BookE patch and the code flow could be found at the link below:

	http://patchwork.ozlabs.org/patch/49359/

Steps:

1) Invalidate all the TLB entries except the one this code is run from
2) Create a tmp mapping for our code in the other address space and jump to it
3) Invalidate the entry we used
4) Create a 1:1 mapping for 0-2GiB in blocks of 256M
5) Jump to the new 1:1 mapping and invalidate the tmp mapping

I have tested this patches on Ebony, Sequoia boards and Virtex on QEMU.

You need kexec-tools commit e8b7939b1e or newer for ppc440x support, 
available at:

 git://git.kernel.org/pub/scm/utils/kernel/kexec/kexec-tools.git

Signed-off-by: 	Suzuki Poulose <suzuki@in.ibm.com>
Cc:	Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
2011-08-11 13:50:37 -04:00
..
alpha Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
arm Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-08-03 21:54:15 -10:00
avr32 Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
blackfin atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
cris cris: add missing declaration of kgdb_init() and breakpoint() 2011-08-03 14:25:22 -10:00
frv Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
h8300 atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
ia64 Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
m32r atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
m68k Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
microblaze Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2011-07-27 09:24:20 -07:00
mips atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
mn10300 atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
openrisc
parisc Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 2011-08-04 06:36:20 -10:00
powerpc powerpc/44x: Kexec support for PPC440X chipsets 2011-08-11 13:50:37 -04:00
s390 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2011-08-04 06:35:51 -10:00
score modules: make arch's use default loader hooks 2011-07-24 22:06:04 +09:30
sh Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-08-03 21:54:15 -10:00
sparc Merge branch 'apei' into apei-release 2011-08-03 11:30:42 -04:00
tile Merge branch 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2011-08-03 21:53:27 -10:00
um ptrace: unify show_regs() prototype 2011-07-26 16:49:43 -07:00
unicore32 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
x86 x86: don't include xen/xen.h in <asm/io.h> unless XEN is enabled 2011-08-03 22:00:38 -10:00
xtensa atomic: cleanup asm-generic atomic*.h inclusion 2011-07-26 16:49:47 -07:00
.gitignore
Kconfig Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG 2011-08-03 11:12:37 -04:00