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Christophe Leroy 2885cf0d50 powerpc/83xx: handle machine check caused by watchdog timer 
[ Upstream commit 0deae39cec ]

When the watchdog timer is set in interrupt mode, it causes a
machine check when it times out. The purpose of this mode is to
ease debugging, not to crash the kernel and reboot the machine.

This patch implements a special handling for that, in order to not
crash the kernel if the watchdog times out while in interrupt or
within the idle task.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[scottwood: added missing #include]
Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-05 15:37:47 +01:00
..
trace
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vdso32
powerpc/vdso: Correct call frame information
2019-11-20 17:59:59 +01:00
vdso64
powerpc/vdso: Correct call frame information
2019-11-20 17:59:59 +01:00
.gitignore
…
align.c
powerpc: Fix check for copy/paste instructions in alignment handler
2017-10-25 12:42:35 +02:00
asm-offsets.c
powerpc/64s: Improve RFI L1-D cache flush fallback
2018-05-30 07:51:50 +02:00
audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
btext.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cacheinfo.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
cacheinfo.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat_audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cpu_setup_6xx.S
…
cpu_setup_44x.S
…
cpu_setup_fsl_booke.S
…
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc/64s: Clear PCR on boot
2018-05-30 07:51:49 +02:00
cpu_setup_ppc970.S
…
cputable.c
powerpc/83xx: handle machine check caused by watchdog timer
2019-12-05 15:37:47 +01:00
crash_dump.c
…
crash.c
…
dbell.c
…
dma-iommu.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dma-swiotlb.c
…
dma.c
…
dt_cpu_ftrs.c
powerpc/mm: Fixup tlbie vs mtpidr/mtlpidr ordering issue on POWER9
2019-11-10 11:25:42 +01:00
eeh_cache.c
…
eeh_dev.c
powerpc/eeh: Create PHB PEs after EEH is initialized
2017-09-21 14:56:00 +10:00
eeh_driver.c
powerpc/eeh: Fix use-after-release of EEH driver
2018-08-03 07:50:24 +02:00
eeh_event.c
…
eeh_pe.c
powerpc/eeh: Fix use of EEH_PE_KEEP on wrong field
2019-12-01 09:13:18 +01:00
eeh_sysfs.c
powerpc/eeh: Remove unnecessary config_addr from eeh_dev
2017-08-31 14:26:09 +10:00
eeh.c
powerpc/eeh: Handle hugepages in ioremap space
2019-07-31 07:28:55 +02:00
entry_32.S
powerpc/fsl: Sanitize the syscall table for NXP PowerPC 32 bit platforms
2019-04-03 06:25:13 +02:00
entry_64.S
powerpc/book3s64: Fix link stack flush on context switch
2019-12-01 09:14:36 +01:00
epapr_hcalls.S
…
epapr_paravirt.c
…
exceptions-64e.S
powerpc/fsl: Fix the flush of branch predictor.
2019-04-03 06:25:15 +02:00
exceptions-64s.S
powerpc/64s/exception: machine check use correct cfar for late handler
2019-10-07 18:55:05 +02:00
fadump.c
powerpc/fadump: Do not allow hot-remove memory from fadump reserved area.
2019-02-12 19:46:07 +01:00
firmware.c
…
fpu.S
…
fsl_booke_entry_mapping.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
head_8xx.S
powerpc/8xx: fix invalid register expression in head_8xx.S
2018-08-03 07:50:31 +02:00
head_32.S
powerpc: Fix DABR match on hash based systems
2018-02-22 15:42:17 +01:00
head_40x.S
…
head_44x.S
…
head_64.S
powerpc/64: mark start_here_multiplatform as __ref
2019-09-16 08:20:45 +02:00
head_booke.h
powerpc/fsl: Fixed warning: orphan section `__btb_flush_fixup'
2019-04-03 06:25:15 +02:00
head_fsl_booke.S
powerpc/fsl: Flush the branch predictor at each kernel entry (32 bit)
2019-04-03 06:25:14 +02:00
hw_breakpoint.c
powerpc/ptrace: Fix enforcement of DAWR constraints
2018-07-03 11:24:50 +02:00
idle_6xx.S
…
idle_book3e.S
…
idle_book3s.S
powerpc/powernv/idle: Restore IAMR after idle
2019-05-16 19:42:35 +02:00
idle_e500.S
…
idle_power4.S
…
idle.c
…
ima_kexec.c
…
io-workarounds.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
io.c
…
iomap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iommu.c
powerpc/iommu: Avoid derefence before pointer check
2019-11-20 18:00:10 +01:00
irq.c
powerpc/64s: Fix lost pending interrupt due to race causing lost update to irq_happened
2018-04-08 14:26:27 +02:00
isa-bridge.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
jump_label.c
…
kexec_elf_64.c
…
kgdb.c
powerpc/8xx: Getting rid of remaining use of CONFIG_8xx
2017-08-10 23:32:12 +10:00
kprobes-ftrace.c
powerpc/jprobes: Disable preemption when triggered through ftrace
2017-12-10 13:40:43 +01:00
kprobes.c
powerpc/kprobes: Fix call trace due to incorrect preempt count
2018-04-24 09:36:28 +02:00
kvm_emul.S
…
kvm.c
kmemleak: powerpc: skip scanning holes in the .bss section
2019-05-08 07:20:50 +02:00
l2cr_6xx.S
powerpc/l2cr_6xx: Fix invalid use of register expressions
2017-08-15 21:04:32 +10:00
legacy_serial.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
machine_kexec_32.c
…
machine_kexec_64.c
…
machine_kexec_file_64.c
powerpc/kexec_file: Fix error code when trying to load kdump kernel
2018-04-24 09:36:28 +02:00
machine_kexec.c
powerpc/kdump: Handle crashkernel memory reservation failure
2018-10-03 17:00:48 -07:00
Makefile
powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
2019-04-03 06:25:12 +02:00
mce_power.c
powerpc: Fix workaround for spurious MCE on POWER9
2017-09-29 14:19:44 +10:00
mce.c
powerpc/mce: Move 64-bit machine check code into mce.c
2017-08-10 23:31:31 +10:00
misc_32.S
…
misc_64.S
powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
2019-08-29 08:26:45 +02:00
misc.S
…
module_32.c
…
module_64.c
powerpc/64/module: REL32 relocation range check
2018-11-21 09:24:02 +01:00
module.c
powerpc/64: Add CONFIG_PPC_BARRIER_NOSPEC
2019-04-03 06:25:12 +02:00
msi.c
powerpc/msi: Fix NULL pointer access in teardown code
2018-12-21 14:13:06 +01:00
nvram_64.c
pstore: Convert buf_lock to semaphore
2019-06-11 12:21:48 +02:00
of_platform.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
optprobes_head.S
powerpc/kprobes: Don't save/restore DAR/DSISR to/from pt_regs for optprobes
2017-08-24 16:19:01 +10:00
optprobes.c
powerpc/kprobes: Disable preemption before invoking probe handler for optprobes
2017-12-10 13:40:43 +01:00
paca.c
treewide: make "nr_cpu_ids" unsigned
2017-09-08 18:26:48 -07:00
pci_32.c
powerpc/32: Add a missing include header
2018-08-03 07:50:30 +02:00
pci_64.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
pci_dn.c
powerpc/pci: Remove OF node back pointer from pci_dn
2017-08-31 14:26:12 +10:00
pci_of_scan.c
powerpc/pci/of: Fix OF flags parsing for 64bit BARs
2019-07-31 07:28:52 +02:00
pci-common.c
powerpc: Convert to using %pOF instead of full_name
2017-08-23 22:27:04 +10:00
pci-hotplug.c
…
pmc.c
…
ppc32.h
…
ppc_save_regs.S
…
proc_powerpc.c
…
process.c
powerpc/process: Fix flush_all_to_thread for SPE
2019-12-01 09:13:47 +01:00
prom_init_check.sh
…
prom_init.c
powerpc: Add __printf verification to prom_printf
2018-08-03 07:50:30 +02:00
prom_parse.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
prom.c
powerpc/prom: fix early DEBUG messages
2019-12-05 15:37:41 +01:00
ptrace32.c
…
ptrace.c
powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
2019-03-23 14:35:27 +01:00
reloc_32.S
…
reloc_64.S
powerpc/asm: Convert .llong directives to .8byte
2017-08-31 14:26:47 +10:00
rtas_flash.c
…
rtas_pci.c
powerpc/kernel: Change retrieval of pci_dn
2017-08-31 14:26:40 +10:00
rtas-proc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtas-rtc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
rtas.c
powerpc/pseries: Disable CPU hotplug across migrations
2019-11-20 18:00:11 +01:00
rtasd.c
powerpc/pseries: Remove prrn_work workqueue
2019-04-20 09:15:04 +02:00
security.c
KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel
2019-12-01 09:14:36 +01:00
setup_32.c
powerpc/32: remove a NOP from memset()
2017-09-01 16:42:46 +10:00
setup_64.c
powerpc/speculation: Support 'mitigations=' cmdline option
2019-05-14 19:18:46 +02:00
setup-common.c
powerpc/fsl: Enable runtime patching if nospectre_v2 boot arg is used
2019-04-03 06:25:14 +02:00
setup.h
…
signal_32.c
powerpc/tm: Fix oops on sigreturn on systems without TM
2019-07-31 07:28:58 +02:00
signal_64.c
powerpc/tm: Fix oops on sigreturn on systems without TM
2019-07-31 07:28:58 +02:00
signal.c
powerpc/signal: Properly handle return value from uprobe_deny_signal()
2017-11-30 08:40:56 +00:00
signal.h
…
smp-tbsync.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
smp.c
powerpc/smp: Add Power9 scheduler topology
2017-08-31 18:16:08 +10:00
stacktrace.c
…
suspend.c
…
swsusp_32.S
powerpc/32s: fix suspend/resume when IBATs 4-7 are used
2019-07-31 07:28:42 +02:00
swsusp_64.c
…
swsusp_asm64.S
powerpc: Fix invalid use of register expressions
2017-08-10 22:29:41 +10:00
swsusp_booke.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
swsusp.c
…
sys_ppc32.c
…
syscalls.c
…
sysfs.c
…
systbl_chk.c
…
systbl_chk.sh
…
systbl.S
powerpc/asm: Convert .llong directives to .8byte
2017-08-31 14:26:47 +10:00
tau_6xx.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
time.c
powerpc/time: Fix clockevent_decrementer initalisation for PR KVM
2019-11-24 08:23:34 +01:00
tm.S
powerpc/tm: Avoid possible userspace r1 corruption on reclaim
2018-10-20 09:48:52 +02:00
traps.c
powerpc/traps: Fix the message printed when stack overflows
2019-03-23 14:35:27 +01:00
udbg_16550.c
…
udbg.c
…
uprobes.c
powerpc/uprobes: Implement arch_uretprobe_is_alive()
2017-08-24 16:19:21 +10:00
vdso.c
…
vecemu.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vector.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
vmlinux.lds.S
powerpc/fsl: Add infrastructure to fixup branch predictor flush
2019-04-03 06:25:13 +02:00
watchdog.c
powerpc/watchdog: Do not trigger SMP crash from touch_nmi_watchdog
2017-12-25 14:26:28 +01:00