Suzuki K Poulose ed2cfb2b3c dts: bindings: Restrict coresight tmc-etr scatter-gather mode ... We are about to add the support for ETR builtin scatter-gather mode for dealing with large amount of trace buffers. However, on some of the platforms, using the ETR SG mode can lock up the system due to the way the ETR is connected to the memory subsystem. In SG mode, the ETR performs READ from the scatter-gather table to fetch the next page and regular WRITE of trace data. If the READ operation doesn't complete(due to the memory subsystem issues, which we have seen on a couple of platforms) the trace WRITE cannot proceed leading to issues. So, we by default do not use the SG mode, unless it is known to be safe on the platform. We define a DT property for the TMC node to specify whether we have a proper SG mode. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: John Horley <john.horley@arm.com> Cc: Robert Walker <robert.walker@arm.com> Cc: devicetree@vger.kernel.org Cc: frowand.list@gmail.com Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-07-15 13:52:57 +02:00
..
ABI	mei: expose fw version to sysfs	2018-07-03 13:11:20 +02:00
accelerators	ocxl: Document new OCXL IOCTLs	2018-06-03 20:40:33 +10:00
accounting
acpi	ACPI / Documentation: update ACPI customize method feature docs	2018-06-06 08:48:00 +02:00
admin-guide	Documentation: intel_pstate: Fix typo	2018-06-21 00:35:19 +02:00
aoe
arm	ARM: Device-tree updates	2018-06-11 17:57:38 -07:00
arm64
auxdisplay	Doc: misc-devices: move lcd-panel-cgram.txt to auxdisplay/	2018-04-12 16:08:02 +02:00
backlight
block	block: remov blk_queue_invalidate_tags	2018-06-15 08:13:35 -06:00
blockdev	zram: introduce zram memory tracking	2018-06-07 17:34:34 -07:00
bpf	bpf, doc: howto use/run the BPF selftests	2018-05-14 23:02:58 -07:00
bus-devices
cdrom
cgroup-v1	page cache: use xa_lock	2018-04-11 10:28:39 -07:00
cma
connector
console
core-api	Fix Documentation build due to rename of main.c to mtrr.c	2018-06-18 13:41:45 +09:00
cpu-freq
cpuidle
crypto	docs: crypto_engine.rst: Fix two parse warnings	2018-06-15 12:48:59 -03:00
dev-tools	doc: dev-tools: kselftest.rst: update contributing new tests	2018-04-27 16:56:15 -06:00
device-mapper	dm: add writecache target	2018-06-08 11:59:51 -04:00
devicetree	dts: bindings: Restrict coresight tmc-etr scatter-gather mode	2018-07-15 13:52:57 +02:00
doc-guide	MAINTAINERS & files: Canonize the e-mails I use at files	2018-05-04 06:21:06 -04:00
driver-api	slimbus: stream: add stream support	2018-07-07 17:25:23 +02:00
driver-model
early-userspace
EDID
extcon
fault-injection
fb
features	Kbuild: rename HAVE_CC_STACKPROTECTOR config variable	2018-06-15 07:15:28 +09:00
filesystems	cifs: minor documentation updates	2018-06-15 02:38:07 -05:00
firmware_class
fmc
gpio
gpu	Merge remote-tracking branch 'drm/drm-next' into drm-misc-next	2018-05-11 18:08:10 +02:00
hid
hwmon	docs: Fix more broken references	2018-06-15 18:11:26 -03:00
i2c	Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-06-14 16:21:46 +09:00
ia64
ide
iio
infiniband
input
ioctl	SCSI misc on 20180610	2018-06-10 13:01:12 -07:00
isdn
kbuild	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables	2018-06-14 12:21:18 +09:00
kdump
kernel-hacking
laptops	platform/x86: thinkpad_acpi: silence HKEY 0x6032, 0x60f0, 0x6030	2018-05-07 15:10:31 +03:00
leds
lightnvm
livepatch	livepatch: Remove not longer valid limitations from the documentation	2018-05-24 15:37:57 +02:00
locking
m68k
maintainer	docs: Fix more broken references	2018-06-15 18:11:26 -03:00
md
media	media: cec: improve cec status documentation	2018-05-25 15:34:50 -04:00
memory-devices
mic
mips
misc-devices	Mostly small fixes and cleanups, plus a non-trivial fix for charlcd	2018-06-07 14:01:16 -07:00
mmc
mtd
namespaces
netlabel
networking	docs: can.rst: fix a footnote reference	2018-06-15 12:48:59 -03:00
nfc
nios2
nvdimm
nvmem
openrisc
parisc
PCI	PCI/AER: Handle ERR_FATAL with removal and re-enumeration of devices	2018-05-17 16:44:13 -05:00
pcmcia
perf
phy
platform
power	firmware: Fix firmware documentation for recent file renames	2018-04-23 13:03:26 +02:00
powerpc
pps
process	There's been a fair amount of work in the docs tree this time around,	2018-06-04 12:34:27 -07:00
pti
ptp
rapidio
RCU	doc: Ensure whatisRCU.txt actually says what RCU is	2018-05-15 10:28:12 -07:00
riscv	perf: riscv: Add Document for Future Porting Guide	2018-06-04 14:02:11 -07:00
s390
scheduler	sched/deadline/Documentation: Add overrun signal and GRUB-PA documentation	2018-05-14 09:12:27 +02:00
scsi	block: remove BLK_EH_HANDLED	2018-05-29 08:59:21 -06:00
security	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables	2018-06-14 12:21:18 +09:00
serial
sh
sound	sound updates for 4.18	2018-06-06 09:08:38 -07:00
sparc
sphinx	Documentation: rstFlatTable.py: fix a broken reference	2018-06-15 18:10:01 -03:00
sphinx-static
spi
sysctl	Drivers: HV: Send one page worth of kmsg dump over Hyper-V during panic	2018-07-08 15:54:31 +02:00
target
thermal
timers
trace	tracing: Fix some errors in histogram documentation	2018-06-21 15:12:44 -04:00
translations	fix a series of Documentation/ broken file name references	2018-06-15 18:10:01 -03:00
usb
userspace-api	audit/stable-4.18 PR 20180605	2018-06-06 16:34:00 -07:00
virtual	KVM: fix KVM_CAP_HYPERV_TLBFLUSH paragraph number	2018-06-22 17:30:20 +02:00
vm	docs/vm: move ksm and transhuge from "user" to "internals" section.	2018-05-29 06:45:55 -06:00
w1	w1: fix w1_ds2438 documentation	2018-07-07 17:27:13 +02:00
watchdog
wimax
x86	Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-06-04 21:34:39 -07:00
xtensa
.gitignore
00-INDEX	docs: admin-guide: add cgroup-v2 documentation	2018-05-10 15:42:41 -06:00
atomic_bitops.txt
atomic_t.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
Changes
clearing-warn-once.txt
CodingStyle
conf.py
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt	Documentation: remove stale firmware API reference	2018-05-14 16:44:41 +02:00
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
DMA-ISA-LPC.txt
docutils.conf
dontdiff
efi-stub.txt
eisa.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst	docs/vm: add index.rst and link MM documentation to top level index	2018-04-16 14:18:15 -06:00
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isa.txt
isapnp.txt
kernel-per-CPU-kthreads.txt
kobject.txt
kprobes.txt	docs: Fix some broken references	2018-06-15 18:10:01 -03:00
kref.txt
ldm.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lsm.txt
lzo.txt
mailbox.txt
Makefile
memory-barriers.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-06-04 16:40:11 -07:00
memory-hotplug.txt
men-chameleon-bus.txt
nommu-mmap.txt
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
pwm.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
SAK.txt
sgi-ioc4.txt
siphash.txt
SM501.txt
smsc_ece1099.txt
speculation.txt
static-keys.txt
SubmittingPatches
svga.txt
switchtec.txt
sync_file.txt
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
vfio-mediated-device.txt	vfio/mdev: Check globally for duplicate devices	2018-06-08 10:24:27 -06:00
vfio.txt	vfio: fix documentation	2018-05-08 09:16:41 -06:00
video-output.txt
xillybus.txt
xz.txt
zorro.txt