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linux-stable/arch/mips/kernel
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Thomas Gleixner 4b92d4add5 drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 
DEFINE_SMP_CALL_CACHE_FUNCTION() was usefel before the CPU hotplug rework
to ensure that the cache related functions are called on the upcoming CPU
because the notifier itself could run on any online CPU.

The hotplug state machine guarantees that the callbacks are invoked on the
upcoming CPU. So there is no need to have this SMP function call
obfuscation. That indirection was missed when the hotplug notifiers were
converted.

This also solves the problem of ARM64 init_cache_level() invoking ACPI
functions which take a semaphore in that context. That's invalid as SMP
function calls run with interrupts disabled. Running it just from the
callback in context of the CPU hotplug thread solves this.

Fixes: 8571890e15 ("arm64: Add support for ACPI based firmware tables")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/871r69ersb.ffs@tglx
2021-09-01 10:29:10 +02:00
..
syscalls - added support for OpeneEmbed SOM9331 board 2021-07-01 17:03:11 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
access-helper.h MIPS: Fix new sparse warnings 2021-04-07 16:11:05 +02:00
asm-offsets.c sched,arch: Remove unused TASK_STATE offsets 2021-06-18 11:43:09 +02:00
bmips_5xxx_init.S
bmips_vec.S
branch.c MIPS: kernel: include probes-common.h header in branch.c 2020-09-21 22:14:24 +02:00
cacheinfo.c drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-01 10:29:10 +02:00
cevt-bcm1480.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-ds1287.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-gt641xx.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-r4k.c MIPS: Remove KVM_GUEST support 2021-03-10 15:18:40 +01:00
cevt-sb1250.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
cevt-txx9.c mips: kernel: convert comma to semicolon 2020-12-28 22:32:28 +01:00
cmpxchg.c locking/atomic: mips: move to ARCH_ATOMIC 2021-05-26 13:20:51 +02:00
cps-vec-ns16550.S mips: Add CPS_NS16550_WIDTH config 2020-05-22 09:12:52 +02:00
cps-vec.S MIPS: CPS: don't create redundant .text.cps-vec section 2021-01-15 15:27:54 +01:00
cpu-probe.c MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B) 2021-06-01 11:44:47 +02:00
cpu-r3k-probe.c MIPS: kernel: Reserve exception base early to prevent corruption 2021-03-09 11:22:59 +01:00
crash.c
crash_dump.c MIPS: crash_dump.c: Simplify copy_oldmem_page() 2021-02-09 13:30:12 +01:00
csrc-bcm1480.c
csrc-ioasic.c
csrc-r4k.c mips: csrc-r4k: Mark R4K timer as unstable if CPU freq changes 2020-05-22 09:14:06 +02:00
csrc-sb1250.c
early_printk.c
early_printk_8250.c
elf.c
entry.S mips: Add MIPS Release 5 support 2020-05-22 09:09:01 +02:00
fpu-probe.c MIPS: cpu-probe: move fpu probing/handling into its own file 2020-10-12 12:04:50 +02:00
fpu-probe.h MIPS: cpu-probe: move fpu probing/handling into its own file 2020-10-12 12:04:50 +02:00
ftrace.c MIPS: kernel: Remove not needed set_fs calls 2021-04-06 14:36:56 +02:00
genex.S MIPS: Make check condition for SDBBP consistent with EJTAG spec 2021-02-11 11:04:31 +01:00
gpio_txx9.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
head.S MIPS: of: Introduce helper function to get DTB 2021-02-04 13:34:51 +01:00
i8253.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
idle.c Revert "MIPS: Remove unused R4300 CPU support" 2021-01-22 11:39:45 +01:00
irq-gt641xx.c
irq-msc01.c
irq.c irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry 2021-07-09 10:18:58 +01:00
irq_txx9.c
jump_label.c
kgdb.c MIPS: kernel: Drop kgdb_call_nmi_hook 2021-02-15 12:23:54 +01:00
kprobes.c kprobes: Remove kprobe::fault_handler 2021-06-01 16:00:08 +02:00
linux32.c
machine_kexec.c
Makefile MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE 2021-04-21 13:44:35 +02:00
mcount.S
mips-cm.c mips: cm: add missing iounmap() on error in mips_cm_probe() 2020-11-06 11:33:11 +01:00
mips-cpc.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
mips-mt-fpaff.c MIPS: Use rcu to lookup a task in mipsmt_sys_sched_setaffinity() 2020-09-03 10:13:43 +02:00
mips-mt.c
mips-r2-to-r6-emul.c MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
module.c MIPS: module: optimize module relocations processing 2021-01-18 15:55:16 +01:00
octeon_switch.S
perf_event.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
perf_event_mipsxx.c MIPS: perf: Add support for OCTEON III perf events. 2021-01-04 11:32:57 +01:00
perf_regs.c MIPS: kernel: Support extracting off-line stack traces from user-space with perf 2021-02-04 21:55:45 +01:00
pm-cps.c MIPS: barrier: Add __SYNC() infrastructure 2019-10-07 09:42:17 -07:00
pm.c
probes-common.h
proc.c mips: Add MIPS Release 5 support 2020-05-22 09:09:01 +02:00
process.c sched: Introduce task_is_running() 2021-06-18 11:43:07 +02:00
prom.c MIPS: replace add_memory_region with memblock 2020-10-12 12:01:36 +02:00
ptrace.c Revert "MIPS: Add basic support for ptrace single step" 2021-02-18 11:57:44 +01:00
ptrace32.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
r4k-bugs64.c arch: mips: update references to current linux-mips list 2021-02-23 13:24:38 +01:00
r4k_fpu.S mips: Add MIPS Release 5 support 2020-05-22 09:09:01 +02:00
r4k_switch.S
r2300_fpu.S
r2300_switch.S
relocate.c kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
relocate_kernel.S MIPS: Loongson64: Add kexec/kdump support 2021-04-16 09:18:06 +02:00
reset.c
rtlx-cmp.c
rtlx-mt.c MIPS: Replace setup_irq() by request_irq() 2020-03-05 16:47:35 +01:00
rtlx.c
scall32-o32.S MIPS: Remove get_fs/set_fs 2021-04-06 15:12:58 +02:00
scall64-n32.S mips: syscalls: switch to generic syscalltbl.sh 2021-03-10 15:19:14 +01:00
scall64-n64.S mips: syscalls: switch to generic syscalltbl.sh 2021-03-10 15:19:14 +01:00
scall64-o32.S mips: syscalls: switch to generic syscalltbl.sh 2021-03-10 15:19:14 +01:00
segment.c
setup.c MIPS: kernel: setup.c: fix compilation error 2021-03-30 14:51:23 +02:00
signal-common.h
signal.c Revert "MIPS: Add basic support for ptrace single step" 2021-02-18 11:57:44 +01:00
signal32.c
signal_n32.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
signal_o32.c
smp-bmips.c mips: smp-bmips: fix CPU mappings 2021-03-06 08:43:39 +01:00
smp-cmp.c
smp-cps.c MIPS: No need to check CPU 0 in cps_cpu_disable() 2020-12-28 22:34:09 +01:00
smp-mt.c
smp-up.c
smp.c sched/core: Initialize the idle task with preemption disabled 2021-05-12 13:01:45 +02:00
spinlock_test.c mips: kernel: use DEFINE_DEBUGFS_ATTRIBUTE with debugfs_create_file_unsafe() 2021-03-14 14:09:49 +01:00
spram.c mips: Add CONFIG/CONFIG6/Cause reg fields macro 2020-05-22 09:12:22 +02:00
stacktrace.c
sync-r4k.c MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts 2020-01-22 10:16:18 -08:00
syscall.c MIPS: Convert R10000_LLSC_WAR info a config option 2020-09-07 22:24:27 +02:00
sysrq.c MIPS: constify sysrq_key_op 2020-05-15 14:53:19 +02:00
time.c mips: Add udelay lpj numbers adjustment 2020-05-22 09:13:32 +02:00
topology.c MIPS: CPU#0 is not hotpluggable 2020-07-26 10:18:35 +02:00
traps.c arch/mips/kernel/traps: use vma_lookup() instead of find_vma() 2021-06-29 10:53:51 -07:00
unaligned.c MIPS: Fix new sparse warnings 2021-04-07 16:11:05 +02:00
uprobes.c
vdso.c MIPS: Add support for CONFIG_DEBUG_VIRTUAL 2021-04-06 14:34:02 +02:00
vmlinux.lds.S MIPS: vmlinux.lds.S: Fix appended dtb not properly aligned 2021-03-16 22:53:08 +01:00
vpe-cmp.c mips: pci: convert comma to semicolon 2020-12-28 22:33:43 +01:00
vpe-mt.c mips: kernel: convert comma to semicolon 2020-12-28 22:32:28 +01:00
vpe.c MIPS: vpe: Remove vpe_getcwd 2021-01-27 21:49:16 +01:00
watch.c MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00