linux.git/arch/powerpc/kernel/setup-common.c, branch v3.12.65

powerpc: Don't skip ePAPR spin-table CPUs

2014-07-17T11:43:19+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: Jiri Slaby

powerpc: Don't setup CPUs with bad status

2014-07-17T11:43:19+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: Jiri Slaby

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

fadump: Convert firmware-assisted cpu state dump data into elf notes.

2012-02-22T23:50:01+00:00

When registered for firmware assisted dump on powerpc, firmware preserves
the registers for the active CPUs during a system crash. This patch reads
the cpu register data stored in Firmware-assisted dump format (except for
crashing cpu) and converts it into elf notes and updates the PT_NOTE program
header accordingly. The exact register state for crashing cpu is saved to
fadump crash info structure in scratch area during crash_fadump() and read
during second kernel boot.

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

powerpc: various straight conversions from module.h --> export.h

2011-10-31T23:30:44+00:00

All these files were including module.h just for the basic
EXPORT_SYMBOL infrastructure.  We can shift them off to the
export.h header which is a way smaller footprint and thus
realize some compile time gains.

Signed-off-by: Paul Gortmaker