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linux-stable/arch/parisc/kernel
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Helge Deller 88b3aac622 parisc: Implement __cpu_die() and __cpu_disable() for CPU hotplugging 
Add relevant code to __cpu_die() and __cpu_disable() to finally enable
the CPU hotplugging features. Reset the irq count values in smp_callin()
to zero before bringing up the CPU.

It seems that the firmware may need up to 8 seconds to fully stop a CPU
in which no other PDC calls are allowed to be made. Use a timeout
__cpu_die() to accommodate for this.

Use "chcpu -d 1" to bring CPU1 down, and "chcpu -e 1" to bring it up.

Signed-off-by: Helge Deller <deller@gmx.de>
2022-03-29 21:37:12 +02:00
..
syscalls mm/mempolicy: wire up syscall set_mempolicy_home_node 2022-01-15 16:30:30 +02:00
vdso32 parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
vdso64 parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
alternative.c parisc: Avoid calling SMP cache flush functions on cache-less machines 2022-03-16 22:52:12 +01:00
asm-offsets.c parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
cache.c parisc: Move CPU startup-related functions into .text section 2022-03-29 21:37:12 +02:00
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
drivers.c bus: Make remove callback return void 2021-07-21 11:53:42 +02:00
entry.S parisc: Simplify fast path for non-access data TLB faults 2022-03-11 19:49:30 +01:00
firmware.c parisc: Add PDC locking functions for rendezvous code 2022-03-29 21:37:12 +02:00
ftrace.c Tracing updates for 5.16: 2021-11-01 20:05:19 -07:00
hardware.c parisc: hardware: Update references to parisc website 2020-06-01 23:02:39 +02:00
head.S parisc: Move thread_info into task struct 2021-11-01 07:35:59 +01:00
hpmc.S parisc: Re-use toc_stack as hpmc_stack 2022-01-11 11:57:37 +01:00
inventory.c parisc: Add qemu fw_cfg interface 2020-10-15 08:10:37 +02:00
irq.c parisc: Move CPU startup-related functions into .text section 2022-03-29 21:37:12 +02:00
jump_label.c parisc: Add static branch and JUMP_LABEL feature 2019-05-06 00:10:03 +02:00
kexec.c parisc: add support for kexec_file_load() syscall 2019-09-08 15:41:46 +02:00
kexec_file.c parisc: add support for kexec_file_load() syscall 2019-09-08 15:41:46 +02:00
kgdb.c parisc: Add kgdb io_module to read chars via PDC 2022-01-07 01:29:22 +01:00
kprobes.c parisc: Avoid using hardware single-step in kprobes 2022-03-18 09:10:14 +01:00
Makefile parisc: Switch from GENERIC_CPU_DEVICES to GENERIC_ARCH_TOPOLOGY 2022-03-29 21:37:12 +02:00
module.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
pa7300lc.c
pacache.S parisc: Move disable_sr_hashing_asm() into .text section 2022-03-29 21:37:12 +02:00
parisc_ksyms.c parisc: Drop strnlen_user() in favour of generic version 2021-09-09 12:44:30 +02:00
patch.c parisc: add spinlock to patch function 2019-06-08 12:56:26 +02:00
pci-dma.c parisc: Use constants to encode the space registers like SR_KERNEL 2022-03-11 19:49:31 +01:00
pci.c parisc: Drop comments which are already in pci.h 2019-09-05 16:41:11 +02:00
pdc_chassis.c kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
pdc_cons.c tty: pdc_cons, free tty_driver upon failure 2021-07-27 12:17:21 +02:00
pdt.c parisc: Make use of the helper macro kthread_run() 2021-11-01 07:36:01 +01:00
perf.c parisc/perf: open access for CAP_PERFMON privileged process 2020-04-16 12:19:08 -03:00
perf_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
perf_images.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
process.c asm-generic: Refactor dereference_[kernel]_function_descriptor() 2022-02-16 23:25:11 +11:00
processor.c parisc: Move CPU startup-related functions into .text section 2022-03-29 21:37:12 +02:00
ptrace.c arch/parisc/kernel: remove duplicate include in ptrace 2021-03-04 09:12:29 +01:00
real2.S
relocate_kernel.S parisc: add kexec syscall support 2019-09-08 15:37:04 +02:00
setup.c parisc: Autodetect default output device and set console= kernel parameter 2022-01-20 20:39:19 +01:00
signal.c asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
signal32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
signal32.h parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
smp.c parisc: Implement __cpu_die() and __cpu_disable() for CPU hotplugging 2022-03-29 21:37:12 +02:00
stacktrace.c parisc: Fix implicit declaration of function '__kernel_text_address' 2021-11-13 22:10:56 +01:00
sys_parisc.c parisc: enhance warning regarding usage of O_NONBLOCK 2021-11-01 07:36:00 +01:00
sys_parisc32.c
syscall.S parisc: Add lws_atomic_xchg and lws_atomic_store syscalls 2022-01-07 01:29:21 +01:00
time.c parisc: Move CPU startup-related functions into .text section 2022-03-29 21:37:12 +02:00
toc.c parisc: Fix missing prototype for 'toc_intr' warning in toc.c 2022-01-20 20:39:19 +01:00
toc_asm.S parisc: Enable TOC (transfer of contents) feature unconditionally 2022-01-11 11:57:37 +01:00
topology.c parisc: Move store_cpu_topology() into text section 2022-03-29 21:37:12 +02:00
traps.c parisc: Avoid using hardware single-step in kprobes 2022-03-18 09:10:14 +01:00
unaligned.c parisc/unaligned: Enhance user-space visible output 2022-03-11 19:49:31 +01:00
unwind.c parisc: Move thread_info into task struct 2021-11-01 07:35:59 +01:00
vdso.c parisc: Add vDSO support 2022-03-11 19:49:30 +01:00
vmlinux.lds.S Revert "parisc: Fix backtrace to always include init funtion names" 2021-11-22 07:37:31 +01:00