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Thomas Gleixner 2f7bfc07e3 drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 
[ Upstream commit 4b92d4add5f6dcf21275185c997d6ecb800054cd ]

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
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-09-26 14:07:10 +02:00
..
alchemy MIPS: alchemy: xxs1500: add gpio-au1000.h header file 2021-06-03 08:59:16 +02:00
ar7 The main MIPS changes for a pretty light v5.3 cycle, including: 2019-07-17 09:42:03 -07:00
ath25 PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
ath79 The main MIPS changes for a pretty light v5.3 cycle, including: 2019-07-17 09:42:03 -07:00
bcm47xx MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA 2020-12-30 11:51:07 +01:00
bcm63xx MIPS: bmips: mark exception vectors as char arrays 2019-10-23 21:07:28 -07:00
bmips docs: arm: convert docs to ReST and rename to *.rst 2019-07-15 09:20:24 -03:00
boot mips: disable branch profiling in boot/decompress.o 2021-07-20 16:10:53 +02:00
cavium-octeon MIPS: OCTEON: add missing put_device() call in dwc3_octeon_device_init() 2020-08-19 08:16:15 +02:00
cobalt treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
configs scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled 2020-07-22 09:32:57 +02:00
crypto MIPS: crypto: Add crc32 and crc32c hw accelerated module 2018-02-19 20:50:36 +00:00
dec MIPS: DEC: Restore bootmem reservation for firmware working memory area 2020-11-05 11:43:30 +01:00
emma treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
fw MIPS: fw: sni: Fix out of bounds init of o32 stack 2019-10-09 12:47:28 -07:00
generic MIPS: generic: Update node names to avoid unit addresses 2021-06-30 08:47:44 -04:00
include Revert "MIPS: add PMD table accounting into MIPS'pmd_alloc_one" 2021-07-28 13:30:58 +02:00
jazz dma-mapping: explicitly wire up ->mmap and ->get_sgtable 2019-09-04 11:13:18 +02:00
jz4740 Merge branch 'ingenic-tcu-v5.4' into mips-next 2019-08-08 15:33:16 -07:00
kernel drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-26 14:07:10 +02:00
kvm KVM: MIPS: Change the definition of kvm type 2020-09-23 12:40:38 +02:00
lantiq MIPS: lantiq: Explicitly compare LTQ_EBU_PCC_ISTAT against 0 2021-03-04 10:26:20 +01:00
lasat treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
lib MIPS: Fix kernel hang under FUNCTION_GRAPH_TRACER and PREEMPT_TRACER 2021-06-16 11:59:37 +02:00
loongson32 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
loongson64 MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops 2021-07-19 08:53:13 +02:00
math-emu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 454 2019-06-19 17:09:09 +02:00
mm MIPS: c-r4k: Fix section mismatch for loongson2_sc_init 2021-03-04 10:26:19 +01:00
mti-malta MIPS: Malta: fix alignment of the devicetree buffer 2021-09-22 12:26:26 +02:00
net bpf: Introduce BPF nospec instruction for mitigating Spectre v4 2021-09-15 09:47:38 +02:00
netlogic MIPS: xlp: Drop boot_mem_map 2019-08-23 14:47:21 +01:00
oprofile MIPS: OProfile: Mark expected switch fall-throughs 2019-07-30 09:40:17 -07:00
paravirt mips: unify prom_putchar() declarations 2018-07-17 09:40:17 -07:00
pci MIPS: pci-legacy: stop using of_pci_range_to_resource 2021-05-14 09:44:30 +02:00
pic32 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445 2019-06-05 17:37:18 +02:00
pistachio A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
pmcs-msp71xx MIPS: pmcs-msp71xx: Remove unused addr variable 2019-10-03 15:47:17 -07:00
pnx833x A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
power treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 305 2019-06-05 17:37:04 +02:00
ralink MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c 2021-06-03 08:59:16 +02:00
rb532 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 182 2019-05-30 11:29:20 -07:00
sgi-ip22 MIPS: ip22: Drop addr_is_ram 2019-08-23 14:47:18 +01:00
sgi-ip27 MIPS: SGI-IP27: Fix crash, when CPUs are disabled via nr_cpus parameter 2020-01-17 19:48:55 +01:00
sgi-ip32 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
sibyte treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
sni MIPS: SNI: Fix spurious interrupts 2020-09-23 12:40:42 +02:00
tools MIPS: tools: Fix resource leak in elf-entry.c 2020-06-22 09:31:08 +02:00
txx9 A batch of MIPS fixes: 2019-06-08 13:09:31 -07:00
vdso MIPS: VDSO: Use CLANG_FLAGS instead of filtering out '--target=' 2021-03-07 12:20:41 +01:00
vr41xx treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
Kbuild treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kbuild.platforms treewide: Add SPDX license identifier - Kbuild 2019-05-30 11:32:33 -07:00
Kconfig MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT 2020-09-23 12:40:41 +02:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile mips: Fix non-POSIX regexp 2021-08-12 13:20:57 +02:00
Makefile.postlink MIPS: fix indentation of the 'RELOCS' message 2020-02-11 04:35:16 -08:00