Nicholas Piggin c4f3b52ce7 powerpc/64s: Disallow system reset vs system reset reentrancy ...

In preparation for using a dedicated stack for system reset interrupts,
prevent a nested system reset from recovering, in order to simplify
code that is called in crash/debug path. This allows a system reset
interrupt to just use the base stack pointer.

Keep an in_nmi nesting counter similarly to the in_mce counter. Consider
the interrrupt non-recoverable if it is taken inside another system
reset.

Interrupt nesting could be allowed similarly to MCE, but system reset
is a special case that's not for normal operation, so simplicity wins
until there is requirement for nested system reset interrupts.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

2017-04-28 21:02:25 +10:00

..

trace

powerpc/ftrace/64: Split further based on -mprofile-kernel

2017-04-27 22:20:29 +10:00

vdso32

powerpc/vdso: Fix build rules to rebuild vdsos correctly

2016-08-10 23:04:12 +10:00

vdso64

powerpc/vdso64: Use double word compare on pointers

2016-09-29 15:17:57 +10:00

.gitignore

…

align.c

powerpc/64: Clean up ppc64_caches using a struct per cache

2017-02-06 19:46:04 +11:00

asm-offsets.c

powerpc/64s: Disallow system reset vs system reset reentrancy

2017-04-28 21:02:25 +10:00

audit.c

…

btext.c

powerpc/mm: Use a helper for finding pte bits mapping I/O area

2016-05-01 18:32:32 +10:00

cacheinfo.c

powerpc: Fix missing L2 cache size in /sys/devices/system/cpu

2015-04-11 20:49:28 +10:00

cacheinfo.h

…

compat_audit.c

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cpu_setup_6xx.S

powerpc: Various typo fixes

2016-06-14 13:58:26 +10:00

cpu_setup_44x.S

powerpc/44x: Add support for the AMCC APM821xx SoC

2010-10-13 08:47:09 -04:00

cpu_setup_fsl_booke.S

powerpc/cache: add cache flush operation for various e500

2016-03-04 23:44:51 -06:00

cpu_setup_pa6t.S

…

cpu_setup_power.S

powerpc/64s: Revert setting of LPCR[LPES] on POWER9

2017-04-19 20:00:17 +10:00

cpu_setup_ppc970.S

powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits

2011-07-12 13:16:58 +03:00

cputable.c

powerpc/64s: POWER9 machine check handler

2017-03-10 16:32:08 +11:00

crash_dump.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

crash.c

powerpc/crash: Rearrange loop condition to avoid out of bounds array access

2016-07-14 20:26:22 +10:00

dbell.c

powerpc: Introduce msgsnd/doorbell barrier primitives

2017-04-13 23:34:33 +10:00

dma-iommu.c

dma-mapping: use unsigned long for dma_attrs

2016-08-04 08:50:07 -04:00

dma-swiotlb.c

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

dma.c

treewide: Move dma_ops from struct dev_archdata into struct device

2017-01-24 12:23:35 -05:00

eeh_cache.c

powerpc/eeh: Fix pr_debug()s in eeh_cache.c

2016-07-08 22:09:50 +10:00

eeh_dev.c

powerpc/pci: Delay populating pdn

2016-06-21 15:30:56 +10:00

eeh_driver.c

powerpc/eeh: Fix wrong flag passed to eeh_unfreeze_pe()

2017-01-24 21:22:51 +11:00

eeh_event.c

powerpc/pci: Always print PHB and PE numbers as hexadecimal

2016-11-22 11:57:07 +11:00

eeh_pe.c

powerpc/pci: Always print PHB and PE numbers as hexadecimal

2016-11-22 11:57:07 +11:00

eeh_sysfs.c

powerpc/eeh: Fix PE state format

2014-11-27 09:32:58 +11:00

eeh.c

powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there

2017-04-11 07:46:03 +10:00

entry_32.S

powerpc: Split ftrace bits into a separate file

2017-04-27 22:20:29 +10:00

entry_64.S

powerpc: Split ftrace bits into a separate file

2017-04-27 22:20:29 +10:00

epapr_hcalls.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

epapr_paravirt.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2014-06-10 18:54:22 -07:00

exceptions-64e.S

powerpc/64e: Don't branch to dot symbols

2016-11-28 22:32:30 +11:00

exceptions-64s.S

powerpc/64s: Disallow system reset vs system reset reentrancy

2017-04-28 21:02:25 +10:00

fadump.c

powerpc: Remove unnecessary includes of asm/debug.h

2017-04-11 07:46:04 +10:00

firmware.c

powerpc: fix implicit use of cache.h in kernel/firmware.c

2011-10-31 19:30:41 -04:00

fpu.S

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-10-14 14:26:58 -07:00

fsl_booke_entry_mapping.S

powerpc/fsl: Force coherent memory on e500mc derivatives

2015-08-07 23:00:01 -05:00

head_8xx.S

powerpc/8xx: Perf events on PPC 8xx

2017-01-26 17:49:34 -06:00

head_32.S

powerpc/32: Remove Mac-on-Linux/rtlinux hooks

2017-03-21 22:09:26 +11:00

head_40x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_44x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_64.S

powerpc/64: Allow for THREAD_SIZE > 16k

2017-03-20 19:02:49 +11:00

head_booke.h

powerpc: Fix interrupt range check on debug exception

2013-05-02 10:31:01 +10:00

head_fsl_booke.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

hw_breakpoint.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next

2017-02-18 21:37:14 +11:00

idle_6xx.S

powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly

2012-07-11 14:18:22 +10:00

idle_book3e.S

powerpc: No need to use dot symbols when branching to a function

2014-04-23 10:05:16 +10:00

idle_book3s.S

powerpc/64s: Simplify POWER9 DD1 idle workaround code

2017-04-23 20:32:23 +10:00

idle_e500.S

powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S

2015-06-02 21:37:19 -05:00

idle_power4.S

powerpc: No need to use dot symbols when branching to a function

2014-04-23 10:05:16 +10:00

idle.c

powerpc/idle: Convert use of typedef ctl_table to struct ctl_table

2013-07-01 11:10:35 +10:00

ima_kexec.c

powerpc: ima: send the kexec buffer to the next kernel

2016-12-20 09:48:44 -08:00

io-workarounds.c

sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>

2017-03-02 08:42:37 +01:00

io.c

powerpc/powernv: Add PIO accessors for Power8 LPC bus

2013-08-14 14:58:08 +10:00

iomap.c

powerpc: Move isa bridge definitions to separate include

2017-01-31 13:54:17 +11:00

iommu.c

powerpc/vfio_spapr_tce: Add reference counting to iommu_table

2017-03-30 21:42:11 +11:00

irq.c

Merge branch 'topic/xive' (early part) into next

2017-04-12 22:31:37 +10:00

isa-bridge.c

powerpc: Add support for non-PCI ISA bridges

2017-01-31 13:54:17 +11:00

jump_label.c

jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}

2015-08-03 11:34:12 +02:00

kexec_elf_64.c

powerpc: ima: send the kexec buffer to the next kernel

2016-12-20 09:48:44 -08:00

kgdb.c

powerpc: Fix kgdb on little endian ppc64le

2016-02-18 00:03:26 +11:00

kprobes-ftrace.c

powerpc/kprobes: Add support for KPROBES_ON_FTRACE

2017-04-24 19:07:58 +10:00

kprobes.c

Merge branch 'topic/kprobes' into next

2017-04-25 00:24:04 +10:00

kvm_emul.S

KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt.

2012-05-30 11:43:11 +02:00

kvm.c

powerpc: Remove redundant breaks

2015-08-06 15:10:20 +10:00

l2cr_6xx.S

Fix common misspellings

2011-03-31 11:26:23 -03:00

legacy_serial.c

powerpc/powernv: Add support for direct mapped LPC on POWER9

2017-01-31 13:54:18 +11:00

machine_kexec_32.c

treewide: convert uses of ATTRIB_NORETURN to __noreturn

2012-01-12 20:13:03 -08:00

machine_kexec_64.c

powerpc: Add purgatory for kexec_file_load() implementation.

2016-11-30 23:15:26 +11:00

machine_kexec_file_64.c

powerpc: ima: send the kexec buffer to the next kernel

2016-12-20 09:48:44 -08:00

machine_kexec.c

powerpc: Update of_remove_property() call sites to remove null checking

2016-05-11 21:54:04 +10:00

Makefile

powerpc: Split ftrace bits into a separate file

2017-04-27 22:20:29 +10:00

mce_power.c

powerpc/64s: Minor fix for MCE TLB flush for radix

2017-04-19 20:00:18 +10:00

mce.c

powerpc/book3s: Print task info if we take a machine check in user mode

2017-04-03 16:12:00 +10:00

misc_32.S

powerpc: Fix build warning on 32-bit PPC

2016-12-25 16:12:20 -08:00

misc_64.S

powerpc/64: Fix naming of cache block vs. cache line

2017-02-06 19:46:04 +11:00

misc.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

module_32.c

powerpc/module: Only try to generate the ftrace_caller() stub once

2016-03-07 14:53:53 +11:00

module_64.c

modversions: treat symbol CRCs as 32 bit quantities

2017-02-03 08:28:25 -08:00

module.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

msi.c

powerpc: Remove MSI-related PCI controller ops from ppc_md

2015-06-02 11:47:45 +10:00

nvram_64.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

of_platform.c

powerpc/of_platform: Use builtin_platform_driver

2016-11-25 14:07:51 +11:00

optprobes_head.S

powerpc/optprobes: Fix TOC handling in optprobes trampoline

2017-02-23 08:23:30 +11:00

optprobes.c

powerpc: Introduce a new helper to obtain function entry points

2017-04-24 19:07:58 +10:00

paca.c

powerpc/mm/hash: Store addr_limit in PACA

2017-04-01 21:12:27 +11:00

pci_32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

pci_64.c

Merge tag 'powerpc-4.7-5' into next

2016-07-15 14:57:47 +10:00

pci_dn.c

powerpc/pci: Fix build with PCI_IOV=y and EEH=n

2016-07-07 16:33:27 +10:00

pci_of_scan.c

powerpc: Remove all usages of NO_IRQ

2016-09-20 20:57:12 +10:00

pci-common.c

Merge tag 'powerpc-4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-03-01 10:10:16 -08:00

pci-hotplug.c

powerpc/pci: Don't scan empty slot

2016-05-11 21:54:26 +10:00

pmc.c

bug.h: add include of it to various implicit C users

2012-02-29 17:15:08 -05:00

ppc32.h

powerpc: switch to generic old sigaction()

2013-02-03 18:16:10 -05:00

ppc_save_regs.S

Fix common misspellings

2011-03-31 11:26:23 -03:00

proc_powerpc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

process.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

prom_init_check.sh

powerpc: Simplify symbol check in prom_init_check.sh

2014-09-25 23:14:46 +10:00

prom_init.c

powerpc/prom: Increase minimum RMA size to 512MB

2017-04-04 13:27:59 +10:00

prom_parse.c

powerpc: of_parse_dma_window should take a __be32 *dma_window

2013-08-14 15:33:26 +10:00

prom.c

powerpc: Remove unnecessary includes of asm/debug.h

2017-04-11 07:46:04 +10:00

ptrace32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ptrace.c

powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write

2017-01-20 14:55:19 +11:00

reloc_32.S

powerpc: Don't flush/invalidate the d/icache for an unknown relocation type

2013-07-01 11:10:34 +10:00

reloc_64.S

powerpc: Align p_dyn, p_rela and p_st symbols

2014-03-07 13:50:19 +11:00

rtas_flash.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

rtas_pci.c

powerpc: move find_and_init_phbs() to pSeries specific code

2015-04-11 20:49:09 +10:00

rtas-proc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

rtas-rtc.c

powerpc/rtas-rtc: remove sideeffects of printk_ratelimit

2011-06-29 15:30:43 +10:00

rtas.c

powerpc/kernel: Fix unbalanced refcount on RTAS device node

2017-01-25 13:34:21 +11:00

rtasd.c

powerpc/pseries: Update affinity for memory and cpus specified in a PRRN event

2017-02-02 20:36:38 +11:00

setup_32.c

powerpc: Move {d,i,u}cache_bsize definitions to a common place

2017-02-06 19:46:04 +11:00

setup_64.c

powerpc/64: Don't use early_cpu_has_feature() in cpu_ready_for_interrupts()

2017-03-28 10:52:05 +11:00

setup-common.c

powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there

2017-04-11 07:46:03 +10:00

setup.h

powerpc: Merge 32-bit and 64-bit setup_arch()

2016-07-21 19:17:46 +10:00

signal_32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal_64.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

signal.h

powerpc: tm: Rename transct_(*) to ck(\1)_state

2016-10-04 20:33:16 +11:00

smp-tbsync.c

powerpc: Delete non-required instances of include <linux/init.h>

2014-01-15 13:46:44 +11:00

smp.c

powerpc: Introduce msgsnd/doorbell barrier primitives

2017-04-13 23:34:33 +10:00

stacktrace.c

powerpc: Make /proc/self/stack always print the current stack

2017-03-28 14:43:59 +11:00

suspend.c

nosave: consolidate __nosave_{begin,end} in <asm/sections.h>

2014-10-09 22:26:04 -04:00

swsusp_32.S

Fix common misspellings

2011-03-31 11:26:23 -03:00

swsusp_64.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nmi.h>

2017-03-02 08:42:30 +01:00

swsusp_asm64.S

powerpc: Only save/restore SDR1 if in hypervisor mode

2013-10-31 12:37:29 +11:00

swsusp_booke.S

powerpc/fsl-booke: Use SPRN_SPRGn rather than mfsprg/mtsprg

2014-01-07 19:06:03 -06:00

swsusp.c

powerpc/swsusp: Include suspend.h to silence sparse warnings

2017-03-20 19:02:49 +11:00

sys_ppc32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

syscalls.c

powerpc/tracing: Allow tracing of mmap syscalls

2017-04-12 22:32:43 +10:00

sysfs.c

powerpc/sysfs: Fix reference leak of cpu device_nodes present at boot

2017-04-25 00:24:59 +10:00

systbl_chk.c

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl_chk.sh

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl.S

powerpc: Add a proper syscall for switching endianness

2015-03-28 22:03:40 +11:00

tau_6xx.c

tree-wide: fix assorted typos all over the place

2009-12-04 15:39:55 +01:00

time.c

sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>

2017-03-02 08:42:39 +01:00

tm.S

powerpc: tm: Rename transct_(*) to ck(\1)_state

2016-10-04 20:33:16 +11:00

traps.c

powerpc/64s: Disallow system reset vs system reset reentrancy

2017-04-28 21:02:25 +10:00

udbg_16550.c

powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()

2014-11-12 13:47:20 +11:00

udbg.c

powerpc: Remove the celleb support

2015-04-07 17:15:13 +10:00

uprobes.c

uprobes/powerpc: Kill arch_uprobe->ainsn

2013-11-20 16:31:01 +01:00

vdso.c

powerpc/64: Clean up ppc64_caches using a struct per cache

2017-02-06 19:46:04 +11:00

vecemu.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

vector.S

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-10-14 14:26:58 -07:00

vmlinux.lds.S

powerpc/kprobes: Blacklist exception handlers

2017-04-23 20:32:25 +10:00