linux-stable.git/arch/powerpc/kernel/setup-common.c, branch v3.14.78

powerpc: Don't skip ePAPR spin-table CPUs

2014-07-07T01:57:28+00:00

commit 6663a4fa6711050036562ddfd2086edf735fae21 upstream.

Commit 59a53afe70fd530040bdc69581f03d880157f15a "powerpc: Don't setup
CPUs with bad status" broke ePAPR SMP booting.  ePAPR says that CPUs
that aren't presently running shall have status of disabled, with
enable-method being used to determine whether the CPU can be enabled.

Fix by checking for spin-table, which is currently the only supported
enable-method.

Signed-off-by: Scott Wood 
Cc: Michael Neuling 
Cc: Emil Medve 
Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Greg Kroah-Hartman

powerpc: Don't setup CPUs with bad status

2014-07-07T01:57:28+00:00

commit 59a53afe70fd530040bdc69581f03d880157f15a upstream.

OPAL will mark a CPU that is guarded as "bad" in the status property of the CPU
node.

Unfortunatley Linux doesn't check this property and will put the bad CPU in the
present map.  This has caused hangs on booting when we try to unsplit the core.

This patch checks the CPU is avaliable via this status property before putting
it in the present map.

Signed-off-by: Michael Neuling 
Tested-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Greg Kroah-Hartman

powerpc: Fix endian issue in setup-common.c

2013-12-13T04:48:34+00:00

During on LE boot we see:

    Partition configured for 1073741824 cpus, operating system maximum is 2048.

Clearly missing a byteswap here.

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Move local setup.h declarations to arch includes

2013-10-30T05:00:31+00:00

Move the few declarations from arch/powerpc/kernel/setup.h
into arch/powerpc/include/asm/setup.h.  This resolves a
sparse warning for arch/powerpc/mm/numa.c which defines
do_init_bootmem() but can't include the setup.h header
in the prior path.

Resolves:
arch/powerpc/mm/numa.c:998:13:
        warning: symbol 'do_init_bootmem' was not declared.
                 Should it be static?

Signed-off-by: Robert C Jennings 
Signed-off-by: Benjamin Herrenschmidt

powerpc: More little endian fixes for setup-common.c

2013-08-14T05:33:24+00:00

Signed-off-by: Alistair Popple 
Signed-off-by: Benjamin Herrenschmidt

powerpc: Make logical to real cpu mapping code endian safe

2013-08-14T05:33:23+00:00

Signed-off-by: Anton Blanchard 
Signed-off-by: Benjamin Herrenschmidt

powerpc: remove PReP platform

2013-04-18T03:03:53+00:00

PPC_PREP is marked as BROKEN since v2.6.15. Remove all PReP specific
code now.

Signed-off-by: Paul Bolle 
Signed-off-by: Michael Ellerman

powerpc/watchdog: move booke watchdog param related code to setup-common.c

2012-07-11T12:44:03+00:00

Currently, BOOKE watchdog code for checking "wdt" and "wdt_period" is
in setup_32.c, it cannot be used in 64-bit, so move it to a common place
setup-common.c, which will be shared by 32-bit and 64-bit.

Also, replace the simple_strtoul with kstrtol.

Signed-off-by: Shaohui Xie 
Signed-off-by: Kumar Gala

Disintegrate asm/system.h for PowerPC

2012-03-28T17:30:02+00:00

Disintegrate asm/system.h for PowerPC.

Signed-off-by: David Howells 
Acked-by: Benjamin Herrenschmidt 
cc: linuxppc-dev@lists.ozlabs.org

fadump: Invalidate the fadump registration during machine shutdown.

2012-02-22T23:50:03+00:00

If dump is active during system reboot, shutdown or halt then invalidate
the fadump registration as it does not get invalidated automatically.

Signed-off-by: Mahesh Salgaonkar 
Signed-off-by: Benjamin Herrenschmidt