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Nicholas Piggin ddd703ca06 powerpc: Add NMI IPI infrastructure 
Add a simple NMI IPI system that handles concurrency and reentrancy.

The platform does not have to implement a true non-maskable interrupt,
the default is to simply use the debugger break IPI message. This has
now been co-opted for a general IPI message, and users (debugger and
crash) have been reimplemented on top of the NMI system.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Incorporate incremental fixes from Nick]
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: Dedicated system reset interrupt stack
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
…
cpu_setup_6xx.S
powerpc: Various typo fixes
2016-06-14 13:58:26 +10:00
cpu_setup_44x.S
…
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
…
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
…
exceptions-64e.S
powerpc/64e: Don't branch to dot symbols
2016-11-28 22:32:30 +11:00
exceptions-64s.S
powerpc/64s: Dedicated system reset interrupt stack
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
…
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
…
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
…
idle_book3e.S
…
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
…
idle.c
…
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
…
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.c
powerpc: Remove redundant breaks
2015-08-06 15:10:20 +10:00
l2cr_6xx.S
…
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
…
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
powerpc fixes for 4.7 #5
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
powerpc updates for 4.11 part 2
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
…
ppc32.h
…
ppc_save_regs.S
…
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
…
prom_init.c
powerpc/prom: Increase minimum RMA size to 512MB
2017-04-04 13:27:59 +10:00
prom_parse.c
…
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
…
reloc_64.S
…
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
…
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/64s: Dedicated system reset interrupt stack
2017-04-28 21:02:25 +10:00
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
…
smp.c
powerpc: Add NMI IPI infrastructure
2017-04-28 21:02:25 +10:00
stacktrace.c
powerpc: Make /proc/self/stack always print the current stack
2017-03-28 14:43:59 +11:00
suspend.c
…
swsusp_32.S
…
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
…
swsusp_booke.S
…
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
…
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: Mark system reset as an NMI with nmi_enter/exit()
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
…
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