Jayachandran C 45a2329367 PCI: Avoid generating invalid ThunderX2 DMA aliases ... On Cavium ThunderX2 arm64 SoCs (formerly known as Broadcom Vulcan), the PCI topology is slightly unusual. For a multi-node system, it looks like: 00:00.0 PCI bridge to [bus 01-1e] 01:0a.0 PCI-to-PCIe bridge to [bus 02-04] 02:00.0 PCIe Root Port bridge to [bus 03-04] (XLATE_ROOT) 03:00.0 PCIe Endpoint pci_for_each_dma_alias() assumes IOMMU translation is done at the root of the PCI hierarchy. It generates 03:00.0, 01:0a.0, and 00:00.0 as DMA aliases for 03:00.0 because buses 01 and 00 are non-PCIe buses that don't carry the Requester ID. Because the ThunderX2 IOMMU is at 02:00.0, the Requester IDs 01:0a.0 and 00:00.0 are never valid for the endpoint. This quirk stops alias generation at the XLATE_ROOT bridge so we won't generate 01:0a.0 or 00:00.0. The current IOMMU code only maps the last alias (this is a separate bug in itself). Prior to this quirk, we only created IOMMU mappings for the invalid Requester ID 00:00:0, which never matched any DMA transactions. With this quirk, we create IOMMU mappings for a valid Requester ID, which fixes devices with no aliases but leaves devices with aliases still broken. The last alias for the endpoint is also used by the ARM GICv3 MSI-X code. Without this quirk, the GIC Interrupt Translation Tables are setup with the invalid Requester ID, and the MSI-X generated by the device fails to be translated and routed. Link: https://bugzilla.kernel.org/show_bug.cgi?id=195447 Signed-off-by: Jayachandran C <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Acked-by: David Daney <david.daney@cavium.com>		2017-04-17 13:25:09 -05:00
..
accessibility	…
acpi	Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm	2017-03-03 16:48:48 -08:00
amba	…
android	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ata	SCSI misc on 20170303	2017-03-03 21:36:56 -08:00
atm	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
auxdisplay	…
base	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
bcma	…
block	SCSI misc on 20170303	2017-03-03 21:36:56 -08:00
bluetooth	…
bus	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
cdrom	…
char	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
clk	ARM: SoC: late DT updates for v4.11	2017-03-03 16:15:48 -08:00
clocksource	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
connector	…
cpufreq	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
cpuidle	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2017-03-04 10:42:53 -08:00
dax	sched/headers: Prepare to remove the <linux/magic.h> include from <linux/sched/task_stack.h>	2017-03-02 08:42:40 +01:00
dca	…
devfreq	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
dio	…
dma	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
dma-buf	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
edac	…
eisa	…
extcon	scripts/spelling.txt: add "swithc" pattern and fix typo instances	2017-02-27 18:43:46 -08:00
firewire	Merge branch 'idr-4.11' of git://git.infradead.org/users/willy/linux-dax	2017-02-28 20:29:41 -08:00
firmware	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
fmc	…
fpga	…
fsi	…
gpio	This is the bulk of GPIO changes for the v4.11 cycle	2017-02-23 08:46:04 -08:00
gpu	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
hid	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hsi	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
hv	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
hwmon	scripts/spelling.txt: add "followings" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
hwspinlock	…
hwtracing	mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf	2017-02-24 17:46:54 -08:00
i2c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ide	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
idle	Power management turbostat utility updates for v4.11-rc1	2017-03-02 17:41:27 -08:00
iio	Staging/IIO driver fixes for 4.11-rc1	2017-03-04 11:26:18 -08:00
infiniband	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
input	Input: rmi4 - f30: detect INPUT_PROP_BUTTONPAD from the button count	2017-03-01 10:01:56 -08:00
iommu	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>	2017-03-02 08:42:28 +01:00
ipack	…
irqchip	…
isdn	sched/headers: Prepare to move cputime functionality from <linux/sched.h> into <linux/sched/cputime.h>	2017-03-02 08:42:39 +01:00
leds	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>	2017-03-02 08:42:27 +01:00
lguest	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
lightnvm	…
macintosh	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mailbox	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
mcb	…
md	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
media	sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-02 08:42:37 +01:00
memory	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
memstick	…
message	…
mfd	staging/iio driver patches for 4.11-rc1	2017-02-22 12:14:01 -08:00
misc	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
mmc	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
mtd	Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-03-03 11:38:56 -08:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-03-04 17:31:39 -08:00
nfc	scripts/spelling.txt: add "omited" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
ntb	…
nubus	…
nvdimm	nfit, libnvdimm: fix interleave set cookie calculation	2017-03-01 00:49:42 -08:00
nvme	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2017-03-03 10:53:35 -08:00
nvmem	…
of	DeviceTree updates for 4.11:	2017-02-22 19:23:14 -08:00
oprofile	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
parisc	Merge branch 'parisc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux	2017-03-03 16:20:06 -08:00
parport	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
pci	PCI: Avoid generating invalid ThunderX2 DMA aliases	2017-04-17 13:25:09 -05:00
pcmcia	…
perf	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
phy	pci-v4.11-changes	2017-02-23 11:53:22 -08:00
pinctrl	scripts/spelling.txt: add "overrided" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
platform	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h>	2017-03-02 08:42:27 +01:00
pnp	…
power	scripts/spelling.txt: add "intialization" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
powercap	…
pps	…
ps3	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
ptp	4.11 is going to be a relatively large release for KVM, with a little over	2017-02-22 18:22:53 -08:00
pwm	pwm: Changes for v4.11-rc1	2017-03-01 09:46:02 -08:00
rapidio	rapidio: use get_user_pages_unlocked()	2017-02-27 18:43:45 -08:00
ras	…
regulator	…
remoteproc	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
reset	ARM: SoC driver updates	2017-02-23 15:57:04 -08:00
rpmsg	virtio, vhost: optimizations, fixes	2017-03-02 13:53:13 -08:00
rtc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
s390	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
sbus	…
scsi	SCSI misc on 20170303	2017-03-03 21:36:56 -08:00
sfi	…
sh	…
sn	…
soc	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
spi	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
spmi	…
ssb	…
staging	Staging/IIO driver fixes for 4.11-rc1	2017-03-04 11:26:18 -08:00
target	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
tc	…
thermal	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
thunderbolt	…
tty	sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h>	2017-03-02 08:42:40 +01:00
uio	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
usb	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
uwb	…
vfio	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
vhost	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
video	sched/headers: Remove the <linux/mm_types.h> dependency from <linux/sched.h>	2017-03-03 01:45:16 +01:00
virt	…
virtio	Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-03-03 10:16:38 -08:00
vlynq	…
vme	…
w1	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
watchdog	watchdog: retu: restore MFD dependency	2017-03-01 06:15:10 -08:00
xen	sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>	2017-03-02 08:42:31 +01:00
zorro	…
Kconfig	…
Makefile	pci-v4.11-changes	2017-02-23 11:53:22 -08:00