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linux/drivers
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Timur Tabi 61d87acb93 FROMLIST: hvc_dcc: bind driver to core0 for reads and writes 
Some debuggers, such as Trace32 from Lauterbach GmbH, do not handle
reads/writes from/to DCC on secondary cores.  Each core has its
own DCC device registers, so when a core reads or writes from/to DCC,
it only accesses its own DCC device.  Since kernel code can run on
any core, every time the kernel wants to write to the console, it
might write to a different DCC.

In SMP mode, Trace32 only uses the DCC on core 0.  In AMP mode, it
creates multiple windows, and each window shows the DCC output
only from that core's DCC.  The result is that console output is
either lost or scattered across windows.

Selecting this option will enable code that serializes all console
input and output to core 0.  The DCC driver will create input and
output FIFOs that all cores will use.  Reads and writes from/to DCC
are handled by a workqueue that runs only core 0.

Bug: 169129589
Link: https://lore.kernel.org/lkml/1435344756-20901-1-git-send-email-timur@codeaurora.org/
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Acked-by: Adam Wallis <awallis@codeaurora.org>
Signed-off-by: Timur Tabi <timur@codeaurora.org>
[eberman@codeaurora.org: Resolve trivial merge conflicts]
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
Change-Id: Ie5e3f25ad74a0f07edb862b8258ad875ea308d30
2020-10-01 21:46:57 +00:00
..
accessibility Char/Misc driver fixes for 5.9-rc3 2020-08-26 10:50:50 -07:00
acpi ACPI: processor: Fix build for ARCH_APICTIMER_STOPS_ON_C3 unset 2020-09-23 13:50:12 +02:00
amba
android ANDROID: gic: Add vendor hook for gic-v3 resume 2020-09-20 22:10:33 +00:00
ata libata-5.9-2020-09-04 2020-09-04 13:19:19 -07:00
atm atm: eni: fix the missed pci_disable_device() for eni_init_one() 2020-09-04 21:42:57 -07:00
auxdisplay A trivial patch for auxdisplay: 2020-09-05 14:22:46 -07:00
base Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
bcma bcma: gpio: Use irqchip template 2020-08-02 18:26:51 +03:00
block Linux 5.9-rc5 2020-09-14 09:49:34 +02:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
bus treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cdrom
char Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2020-08-30 15:53:44 -07:00
clk Linux 5.9-rc6 2020-09-21 12:13:45 +02:00
clocksource A set of clocksource/clockevents updates: 2020-09-27 12:11:35 -07:00
connector
counter counter: microchip-tcb-capture: check the correct variable 2020-08-22 11:38:42 +01:00
cpufreq Linux 5.9-rc4 2020-09-07 09:24:58 +02:00
cpuidle Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
crypto Merge 5.9-rc3 into android-mainline 2020-08-31 19:51:25 +02:00
dax dax: Fix stack overflow when mounting fsdax pmem device 2020-09-20 08:57:36 -07:00
dca
devfreq PM / devfreq: tegra30: Disable clock on error in probe 2020-09-23 13:35:58 +09:00
dio
dma dmaengine fixes for v5.9-rc4 2020-09-04 12:12:39 -07:00
dma-buf Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
edac EDAC/ghes: Check whether the driver is on the safe list correctly 2020-09-15 09:42:15 +02:00
eisa
extcon
firewire treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
firmware Linux 5.9-rc6 2020-09-21 12:13:45 +02:00
fpga Linux 5.8-rc7 2020-07-27 11:49:37 +02:00
fsi
gnss ANDROID: fix up Android-specific Kconfig ---help--- strings 2020-08-17 09:13:01 +02:00
gpio treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
gpu Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
greybus greybus: Use fallthrough pseudo-keyword 2020-07-29 16:58:08 +02:00
hid Linux 5.9-rc4 2020-09-07 09:24:58 +02:00
hsi treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hv hyperv-fixes for 5.9-rc6 2020-09-15 16:20:43 -07:00
hwmon hwmon fixes for v5.9-rc3 2020-08-29 12:37:00 -07:00
hwspinlock
hwtracing Merge 5.9-rc3 into android-mainline 2020-08-31 19:51:25 +02:00
i2c i2c: mxs: use MXS_DMA_CTRL_WAIT4END instead of DMA_CTRL_ACK 2020-09-18 23:11:44 +02:00
i3c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ide treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
idle cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic 2020-08-26 12:41:53 +02:00
iio Staging / IIO driver fixes for 5.9-rc5 2020-09-13 09:15:20 -07:00
infiniband RDMA/core: Fix ordering of CQ pool destruction 2020-09-14 15:20:18 -03:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2020-09-20 10:40:43 -07:00
interconnect interconnect: qcom: Fix small BW votes being truncated to zero 2020-09-04 00:07:12 +03:00
iommu Linux 5.9-rc6 2020-09-21 12:13:45 +02:00
ipack
irqchip BACKPORT: FROMGIT: irqchip/gic-v2, v3: Prevent SW resends entirely 2020-10-01 11:07:45 -07:00
isdn treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
leds LEDs changes for 5.9-rc1. 2020-08-05 19:24:27 -07:00
lightnvm treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
macintosh treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mailbox iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
mcb
md Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
media Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
memory treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
memstick treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
message treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mfd - Bug Fixes 2020-08-28 10:15:33 -07:00
misc Linux 5.9-rc5 2020-09-14 09:49:34 +02:00
mmc Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
most drivers: most: add USB adapter driver 2020-07-31 14:38:12 +02:00
mtd Revert "mtd: spi-nor: Add capability to disable flash quad mode" 2020-09-14 20:58:27 +05:30
mux treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
net Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
ntb treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nubus
nvdimm libnvdimm: KASAN: global-out-of-bounds Read in internal_create_group 2020-08-17 14:47:38 -06:00
nvme block-5.9-2020-09-25 2020-09-26 11:07:36 -07:00
nvmem nvmem: qcom-spmi-sdam: Enable multiple devices 2020-07-29 17:12:09 +02:00
of Linux 5.9-rc2 2020-08-24 10:01:23 +02:00
opp Merge branch 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm 2020-09-01 19:44:20 +02:00
oprofile
parisc Merge branch 'parisc-5.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2020-08-12 12:41:15 -07:00
parport treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pci treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pcmcia treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
perf treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
phy phy: fixes for 5.9 2020-09-04 12:41:55 +02:00
pinctrl ANDROID: pinctrl: qcom: Kconfig: Make new PINCTRL_SM8250 depend on QCOM_SCM || !QCOM_SCM 2020-09-12 16:25:20 +00:00
platform treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pnp
power ANDROID: power_supply: Add POWER_SUPPLY_CHARGE_TYPE_TAPER 2020-09-29 18:31:18 +00:00
powercap powercap: RAPL: Add support for Lakefield 2020-09-16 14:16:04 +02:00
pps
ps3 treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ptp ptp: ptp_clockmatrix: use i2c_master_send for i2c write 2020-08-19 16:23:22 -07:00
pwm Merge 4b6c093e21 ("Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block") into android-mainline 2020-08-17 09:19:35 +02:00
rapidio rapidio: Replace 'select' DMAENGINES 'with depends on' 2020-09-05 19:52:54 +03:00
ras
regulator regulator: Fix for v5.9 2020-09-25 15:16:01 -07:00
remoteproc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
reset treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rpmsg ANDROID: rpmsg: core: Add signal API support 2020-09-29 23:20:55 +00:00
rtc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
s390 s390 fixes for 5.9-rc7 2020-09-26 11:01:18 -07:00
sbus
scsi Merge a1bffa4874 ("Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi") into 'android-mainline' 2020-09-27 13:56:43 +02:00
sfi
sh iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
siox
slimbus
soc Merge 5.9-rc3 into android-mainline 2020-08-31 19:51:25 +02:00
soundwire soundwire: fix double free of dangling pointer 2020-09-03 14:10:19 +05:30
spi spi: Fixes for v5.9 2020-09-25 15:21:54 -07:00
spmi
ssb treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
staging Linux 5.9-rc5 2020-09-14 09:49:34 +02:00
target SCSI fixes on 20200908 2020-09-08 11:42:58 -07:00
tc
tee
thermal - Fix bogus thermal shutdowns for omap4430 where bogus values 2020-09-04 12:49:03 -07:00
thunderbolt thunderbolt: Fix for v5.9-rc6 2020-09-15 13:52:14 +02:00
tty FROMLIST: hvc_dcc: bind driver to core0 for reads and writes 2020-10-01 21:46:57 +00:00
uio
usb ANDROID: usb: typec: tcpm: Bring back tcpm_update_sink_capabilities 2020-09-30 14:32:29 +00:00
vdpa vdpa/mlx5: Avoid warnings about shifts on 32-bit platforms 2020-08-26 08:13:59 -04:00
vfio treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-09-03 18:50:48 -07:00
video TTY/Serial/fbcon fixes for 5.9-rc6 2020-09-20 10:46:26 -07:00
virt
virtio Merge 4b6c093e21 ("Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block") into android-mainline 2020-08-17 09:19:35 +02:00
visorbus
vlynq
vme
w1
watchdog treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xen xen: branch for v5.9-rc4 2020-09-06 09:59:27 -07:00
zorro
Kconfig
Makefile