Serge Semin 7bd6569845 clocksource: dw_apb_timer: Make CPU-affiliation being optional ... [ Upstream commit cee43dbf2e ] Currently the DW APB Timer driver binds each clockevent timers to a particular CPU. This isn't good for multiple reasons. First of all seeing the device is placed on APB bus (which makes it accessible from any CPU core), accessible over MMIO and having the DYNIRQ flag set we can be sure that manually binding the timer to any CPU just isn't correct. By doing so we just set an extra limitation on device usage. This also doesn't reflect the device actual capability, since by setting the IRQ affinity we can make it virtually local to any CPU. Secondly imagine if you had a real CPU-local timer with the same rating and the same CPU-affinity. In this case if DW APB timer was registered first, then due to the clockevent framework tick-timer selection procedure we'll end up with the real CPU-local timer being left unselected for clock-events tracking. But on most of the platforms (MIPS/ARM/etc) such timers are normally embedded into the CPU core and are accessible with much better performance then devices placed on APB. For instance in MIPS architectures there is r4k-timer, which is CPU-local, assigned with the same rating, and normally its clockevent device is registered after the platform-specific one. So in order to fix all of these issues let's make the DW APB Timer CPU affinity being optional and deactivated by passing a negative CPU id, which will effectively set the DW APB clockevent timer cpumask to 'cpu_possible_mask'. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200521204818.25436-5-Sergey.Semin@baikalelectronics.ru Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-06-22 09:30:55 +02:00
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accessibility	…
acpi	ACPI/IORT: Fix PMCG node single ID mapping handling	2020-06-22 09:30:54 +02:00
amba	…
android	binderfs: use refcount for binder control devices too	2020-03-25 08:25:50 +01:00
ata	libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set	2020-04-17 10:50:22 +02:00
atm	fore200e: Fix incorrect checks of NULL pointer dereference	2020-02-24 08:36:36 +01:00
auxdisplay	…
base	x86/speculation: Add Special Register Buffer Data Sampling (SRBDS) mitigation	2020-06-10 20:24:57 +02:00
bcma	…
block	block/floppy: fix contended case in floppy_queue_rq()	2020-06-17 16:40:38 +02:00
bluetooth	Bluetooth: btusb: Disable runtime suspend on Realtek devices	2020-02-11 04:35:09 -08:00
bus	bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads	2020-04-17 10:49:56 +02:00
cdrom	cdrom: respect device capabilities during opening action	2020-01-04 19:18:25 +01:00
char	agp/intel: Reinforce the barrier after GTT updates	2020-06-17 16:40:36 +02:00
clk	PM: runtime: clk: Fix clk_pm_runtime_get() error path	2020-06-17 16:40:30 +02:00
clocksource	clocksource: dw_apb_timer: Make CPU-affiliation being optional	2020-06-22 09:30:55 +02:00
connector	…
counter	counter: 104-quad-8: Add lock guards - generic interface	2020-05-02 08:48:44 +02:00
cpufreq	cpufreq: Fix up cpufreq_boost_set_sw()	2020-06-17 16:40:33 +02:00
cpuidle	cpuidle: teo: Avoid using "early hits" incorrectly	2020-02-05 21:22:52 +00:00
crypto	crypto: ccp -- don't "select" CONFIG_DMADEVICES	2020-06-22 09:30:50 +02:00
dax	device-dax: don't leak kernel memory to user space after unloading kmem	2020-05-27 17:46:48 +02:00
dca	…
devfreq	PM / devfreq: Add missing locking while setting suspend_freq	2020-05-10 10:31:34 +02:00
dio	…
dma	dmaengine: owl: Use correct lock in owl_dma_get_pchan()	2020-05-27 17:46:43 +02:00
dma-buf	dma-buf: Fix SET_NAME ioctl uapi	2020-05-06 08:15:01 +02:00
edac	EDAC/skx: Use the mcmtr register to retrieve close_pg/bank_xor_enable	2020-06-17 16:40:33 +02:00
eisa	…
extcon	extcon: axp288: Add wakeup support	2020-04-08 09:08:43 +02:00
firewire	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:20:06 +01:00
firmware	efi/libstub/x86: Work around LLVM ELF quirk build regression	2020-06-22 09:30:52 +02:00
fpga	fpga: dfl: pci: fix return value of cci_pci_sriov_configure	2020-04-29 16:33:22 +02:00
fsi	fsi: core: Fix small accesses and unaligned offsets via sysfs	2019-12-31 16:45:09 +01:00
gnss	…
gpio	gpio: fix locking open drain IRQ lines	2020-06-03 08:21:28 +02:00
gpu	drm: rcar-du: Set primary plane zpos immutably at initializing	2020-06-22 09:30:53 +02:00
greybus	…
hid	HID: i2c-hid: add Schneider SCL142ALM to descriptor override	2020-06-07 13:18:47 +02:00
hsi	…
hv	Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM	2020-05-06 08:15:09 +02:00
hwmon	hwmon: (nct7904) Fix incorrect range of temperature limit registers	2020-06-03 08:21:14 +02:00
hwspinlock	…
hwtracing	stm class: sys-t: Fix the use of time_after()	2020-03-25 08:25:56 +01:00
i2c	i2c: altera: Fix race between xfer_msg and isr thread	2020-06-07 13:18:50 +02:00
i3c	…
ide	ide: serverworks: potential overflow in svwks_set_pio_mode()	2020-02-24 08:36:53 +01:00
idle	…
iio	iio: adc: stm32-adc: fix a wrong error message when probing interrupts	2020-06-10 20:24:56 +02:00
infiniband	RDMA/uverbs: Make the event_queue fds return POLLERR when disassociated	2020-06-17 16:40:22 +02:00
input	Input: synaptics - add a second working PNP_ID for Lenovo T470s	2020-06-17 16:40:21 +02:00
interconnect	interconnect: qcom: qcs404: Walk the list safely on node removal	2019-12-17 19:55:39 +01:00
iommu	iommu: Fix reference count leak in iommu_group_alloc.	2020-06-03 08:21:28 +02:00
ipack	ipack: tpci200: fix error return code in tpci200_register()	2020-05-27 17:46:47 +02:00
irqchip	irqchip/mbigen: Free msi_desc on device teardown	2020-04-23 10:36:20 +02:00
isdn	…
leds	leds: core: Fix warning message when init_data	2020-04-23 10:36:37 +02:00
lightnvm	…
macintosh	macintosh: windfarm: fix MODINFO regression	2020-03-18 07:17:53 +01:00
mailbox	mailbox: imx: Fix Tx doorbell shutdown path	2020-01-04 19:18:30 +01:00
mcb	…
md	dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath	2020-05-06 08:15:10 +02:00
media	media: si2157: Better check for running tuner in init	2020-06-22 09:30:50 +02:00
memory	memory: mtk-smi: Add PM suspend and resume ops	2020-01-17 19:48:59 +01:00
memstick	…
message	scsi: mptfusion: Fix double fetch bug in ioctl	2020-01-23 08:22:35 +01:00
mfd	mfd: intel-lpss: Use devm_ioremap_uc for MMIO	2020-05-10 10:31:30 +02:00
misc	mei: release me_cl object reference	2020-05-27 17:46:47 +02:00
mmc	mmc: sdio: Fix several potential memory leaks in mmc_sdio_init_card()	2020-06-17 16:40:38 +02:00
mtd	mtd: Fix mtd not registered due to nvmem name collision	2020-05-27 17:46:22 +02:00
mux	…
net	ixgbe: Fix XDP redirect on archs with PAGE_SIZE above 4K	2020-06-22 09:30:53 +02:00
nfc	NFC: st21nfca: add missed kfree_skb() in an error path	2020-06-10 20:24:54 +02:00
ntb	…
nubus	…
nvdimm	libnvdimm: Out of bounds read in __nd_ioctl()	2020-04-23 10:36:42 +02:00
nvme	nvme: fix possible hang when ns scanning fails during error recovery	2020-05-14 07:58:18 +02:00
nvmem	nvmem: qfprom: remove incorrect write support	2020-06-10 20:24:57 +02:00
of	of: overlay: kmemleak in dup_and_fixup_symbol_prop()	2020-04-23 10:36:23 +02:00
opp	opp: Free static OPPs on errors while adding them	2020-02-24 08:36:34 +01:00
oprofile	…
parisc	…
parport	parport: load lowlevel driver if ports not found	2019-12-31 16:45:25 +01:00
pci	PCI/PM: Adjust pcie_wait_for_link_delay() for caller delay	2020-06-17 16:40:23 +02:00
pcmcia	…
perf	pmu/smmuv3: Clear IRQ affinity hint on device removal	2020-06-22 09:30:54 +02:00
phy	phy: uniphier-usb3ss: Add Pro5 support	2020-04-23 10:36:33 +02:00
pinctrl	pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler	2020-05-20 08:20:19 +02:00
platform	platform/x86: dell-laptop: don't register micmute LED if there is no token	2020-06-22 09:30:53 +02:00
pnp	…
power	power: supply: axp288_fuel_gauge: Broaden vendor check for Intel Compute Sticks.	2020-04-23 10:36:41 +02:00
powercap	powercap: intel_rapl: add NULL pointer check to rapl_mmio_cpu_online()	2020-01-14 20:08:18 +01:00
pps	…
ps3	…
ptp	ptp: free ptp device pin descriptors properly	2020-01-23 08:22:51 +01:00
pwm	pwm: bcm2835: Dynamically allocate base	2020-04-29 16:33:02 +02:00
rapidio	rapidio: fix an error in get_user_pages_fast() error handling	2020-05-27 17:46:48 +02:00
ras	…
regulator	regulator: stm32-vrefbuf: fix a possible overshoot when re-enabling	2020-03-12 13:00:29 +01:00
remoteproc	remoteproc: Fix and restore the parenting hierarchy for vdev	2020-06-17 16:40:33 +02:00
reset	reset: uniphier: Add SCSSI reset control for each channel	2020-02-24 08:36:41 +01:00
rpmsg	rpmsg: char: release allocated memory	2020-01-14 20:08:37 +01:00
rtc	rtc: 88pm860x: fix possible race condition	2020-04-23 10:36:31 +02:00
s390	s390/ism: fix error return code in ism_probe()	2020-05-20 08:20:26 +02:00
sbus	…
scsi	scsi: lpfc: Fix negation of else clause in lpfc_prep_node_fc4type	2020-06-17 16:40:35 +02:00
sfi	…
sh	…
siox	…
slimbus	…
soc	soc: mediatek: cmdq: return send msg error code	2020-06-03 08:21:19 +02:00
soundwire	soundwire: intel: fix PDI/stream mapping for Bulk	2019-12-31 16:45:11 +01:00
spi	spi: dw: Enable interrupts in accordance with DMA xfer mode	2020-06-22 09:30:55 +02:00
spmi	spmi: pmic-arb: Set lockdep class for hierarchical irq domains	2020-02-19 19:53:07 +01:00
ssb	…
staging	media: staging: ipu3: Fix stale list entries on parameter queue failure	2020-06-22 09:30:52 +02:00
target	scsi: target: Put lun_ref at end of tmr processing	2020-05-27 17:46:40 +02:00
tc	…
tee	tee: optee: Fix compilation issue with nommu	2020-02-05 21:22:49 +00:00
thermal	thermal: brcmstb_thermal: Do not use DT coefficients	2020-03-05 16:43:50 +01:00
thunderbolt	thunderbolt: Prevent crash if non-active NVMem file is read	2020-02-28 17:22:13 +01:00
tty	tty: hvc_console, fix crashes on parallel open/close	2020-06-10 20:24:56 +02:00
uio	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:36:27 +01:00
usb	CDC-ACM: heed quirk also in error handling	2020-06-10 20:24:57 +02:00
vfio	vfio/type1: Fix VA->PA translation for PFNMAP VMAs in vaddr_get_pfn()	2020-05-06 08:15:14 +02:00
vhost	vhost/vsock: fix packet delivery order to monitoring devices	2020-05-27 17:46:31 +02:00
video	video: fbdev: w100fb: Fix a potential double free.	2020-06-17 16:40:33 +02:00
virt	…
virtio	virtio_ring: Fix mem leak with vring_new_virtqueue()	2020-03-18 07:17:55 +01:00
visorbus	visorbus: fix uninitialized variable access	2020-02-24 08:36:47 +01:00
vlynq	…
vme	vme: bridges: reduce stack usage	2020-02-24 08:36:48 +01:00
w1	…
watchdog	watchdog: imx_sc_wdt: Fix reboot on crash	2020-06-17 16:40:27 +02:00
xen	xen/pvcalls-back: test for errors when calling backend_connect()	2020-06-17 16:40:38 +02:00
zorro	…
Kconfig	…
Makefile	…