Nicholas Piggin 25b6ee378d powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops ...

commit 3b8070335f upstream.

The OPAL NVRAM driver does not sleep in case it gets OPAL_BUSY or
OPAL_BUSY_EVENT from firmware, which causes large scheduling
latencies, and various lockup errors to trigger (again, BMC reboot
can cause it).

Fix this by converting it to the standard form OPAL_BUSY loop that
sleeps.

Fixes: 628daa8d5a ("powerpc/powernv: Add RTC and NVRAM support plus RTAS fallbacks")
Depends-on: 34dd25de9f ("powerpc/powernv: define a standard delay for OPAL_BUSY type retry loops")
Cc: stable@vger.kernel.org # v3.2+
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-24 09:36:28 +02:00

..

alpha

vgacon: Set VGA struct resource types

2018-03-24 11:01:25 +01:00

arc

.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore

2018-02-13 10:19:46 +01:00

arm

ARM: dts: at91: sama5d4: fix pinctrl compatible string

2018-04-24 09:36:24 +02:00

arm64

ARM64: dts: meson: reduce odroid-c2 eMMC maximum rate

2018-04-24 09:36:23 +02:00

blackfin

pinctrl: adi2: Fix Kconfig build problem

2017-12-20 10:10:34 +01:00

c6x

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02 11:20:11 +01:00

cris

License cleanup: add SPDX license identifier to uapi header files with no license

2017-11-02 11:19:54 +01:00

frv

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02 11:20:11 +01:00

h8300

h8300: remove extraneous __BIG_ENDIAN definition

2018-03-28 18:24:38 +02:00

hexagon

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02 11:20:11 +01:00

ia64

ia64, sched/cputime: Fix build error if CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y

2018-03-03 10:24:35 +01:00

m32r

m32r: fix endianness constraints

2018-02-28 10:19:44 +01:00

m68k

m68k: add missing SOFTIRQENTRY_TEXT linker section

2018-02-25 11:07:58 +01:00

metag

.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore

2018-02-13 10:19:46 +01:00

microblaze

microblaze: fix endian handling

2018-02-28 10:19:45 +01:00

mips

MIPS: lantiq: ase: Enable MFD_SYSCON

2018-03-28 18:24:28 +02:00

mn10300

mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy

2018-02-16 20:23:11 +01:00

nios2

.gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore

2018-02-13 10:19:46 +01:00

openrisc

kmemcheck: remove annotations

2018-02-22 15:42:23 +01:00

parisc

parisc: Fix HPMC handler by increasing size to multiple of 16 bytes

2018-04-19 08:56:16 +02:00

powerpc

powerpc/powernv: Fix OPAL NVRAM driver OPAL_BUSY loops

2018-04-24 09:36:28 +02:00

s390

s390/ipl: ensure loadparm valid flag is set

2018-04-19 08:56:19 +02:00

score

License cleanup: add SPDX license identifier to uapi header files with no license

2017-11-02 11:19:54 +01:00

sh

SolutionEngine771x: fix Ether platform data

2018-03-03 10:24:36 +01:00

sparc

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2018-02-22 15:42:23 +01:00

tile

fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall

2017-12-17 15:07:59 +01:00

um

arch, mm: Allow arch_dup_mmap() to fail

2017-12-29 17:53:43 +01:00

unicore32

kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK

2018-02-22 15:42:23 +01:00

x86

x86/xen: Delay get_cpu_cap until stack canary is established

2018-04-24 09:36:25 +02:00

xtensa

xtensa: fix high memory/reserved memory collision

2018-02-28 10:19:38 +01:00

.gitignore

…

Kconfig

kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y

2017-12-10 13:40:40 +01:00