The mv88e6390X family has 8 SERDES lanes. These can be used for 2
10Gbps ports, ports 9 or 10. If these ports are used at slower speeds,
the SERDES lanes become available for other ports for 1000Base-X.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mv88e6390 family has a different SERDES implementation. Refactor
the mv88e6352 code into an ops function, so we can later add the
mv88e6390 code.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The upcoming SERDES support will need to make use of PHY functions. Move
them out into a file of there own. No code changes.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrey Konovalov reported crashes in ipv4_mtu()
I could reproduce the issue with KASAN kernels, between
10.246.7.151 and 10.246.7.152 :
1) 20 concurrent netperf -t TCP_RR -H 10.246.7.152 -l 1000 &
2) At the same time run following loop :
while :
do
ip ro add 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500
ip ro del 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500
done
Cong Wang attempted to add back rt->fi in commit
82486aa6f1 ("ipv4: restore rt->fi for reference counting")
but this proved to add some issues that were complex to solve.
Instead, I suggested to add a refcount to the metrics themselves,
being a standalone object (in particular, no reference to other objects)
I tried to make this patch as small as possible to ease its backport,
instead of being super clean. Note that we believe that only ipv4 dst
need to take care of the metric refcount. But if this is wrong,
this patch adds the basic infrastructure to extend this to other
families.
Many thanks to Julian Anastasov for reviewing this patch, and Cong Wang
for his efforts on this problem.
Fixes: 2860583fe8 ("ipv4: Kill rt->fi")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of falling back to 00:00:00:00:00:00 generate a random address
if none is provided via platform data or from the device's register
space.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function ax_init_dev (which is called only from the driver's .probe
function) calls free_irq in the error path without having requested the
irq in the first place. So drop the free_irq call in the error path.
Fixes: 825a2ff189 ("AX88796 network driver")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fix addresses two problems in the way the DSCP field is formulated
on the encapsulating header of IPv6 tunnels.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=195661
1) The IPv6 tunneling code was manipulating the DSCP field of the
encapsulating packet using the 32b flowlabel. Since the flowlabel is
only the lower 20b it was incorrect to assume that the upper 12b
containing the DSCP and ECN fields would remain intact when formulating
the encapsulating header. This fix handles the 'inherit' and
'fixed-value' DSCP cases explicitly using the extant dsfield u8 variable.
2) The use of INET_ECN_encapsulate(0, dsfield) in ip6_tnl_xmit was
incorrect and resulted in the DSCP value always being set to 0.
Commit 90427ef5d2 ("ipv6: fix flow labels when the traffic class
is non-0") caused the regression by masking out the flowlabel
which exposed the incorrect handling of the DSCP portion of the
flowlabel in ip6_tunnel and ip6_gre.
Fixes: 90427ef5d2 ("ipv6: fix flow labels when the traffic class is non-0")
Signed-off-by: Peter Dawson <peter.a.dawson@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn says:
====================
More marvell phy cleanups
This patchset continues the cleanup of the Marvell PHY driver. These
phys use pages to allow more than the 32 registers that fit into the
MDIO address space. Cleanup the code used for changing pages.
v2
Reverse christmas tree
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Bring all the page names together, remove the repeats, and make them
uniform.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is a common pattern of first reading the currently selected page
and then changing to another page. Add a helper to do this.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
EXT_ADDR_PAGE is the same meaning as MII_MARVELL_PHY_PAGE, i.e. change
page. Replace it will calls to the helpers.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Replace magic numbers for PHY pages with symbolic names.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
lio_enable_irq (called by napi poll) is reporting to Octeon an inaccurate
count of processed rx packets causing Octeon to eventually stop forwarding
packets to the host. Fix it by using this formula for an accurate count:
processed rx packets = droq->pkt_count - droq->pkts_pending
Also increase SOFT_COMMAND_BUFFER_SIZE to match what the firmware expects.
Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There's a rare pci_driver.probe failure of the VF driver that's caused by
PF/VF handshake going out of sync. The culprit is octeon_mbox_write() who
ignores an ack timeout condition; it just keeps unconditionally writing all
elements of mbox_cmd->data[] even when the other side is not ready for
them. Fix it by making each write of mbox_cmd->data[i] conditional to
having previously received an ack.
Also fix the octeon_mbox_state enum such that each state gets a unique
value. Also add ULL suffix to numeric literals in macro definitions.
Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sometimes ICMP replies to INIT chunks are ignored by the client, even if
the encapsulated SCTP headers match an open socket. This happens when the
ICMP packet is carried by a paged skb: use skb_header_pointer() to read
packet contents beyond the SCTP header, so that chunk header and initiate
tag are validated correctly.
v2:
- don't use skb_header_pointer() to read the transport header, since
icmp_socket_deliver() already puts these 8 bytes in the linear area.
- change commit message to make specific reference to INIT chunks.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: phy: Create sysfs reciprocal links for attached_dev/phydev
This patch series addresses a device topology shortcoming where a program
scanning /sys would not be able to establish a mapping between the network
device and the PHY device.
In the process it turned out that no PHY device documentation existed for
sysfs attributes.
Changes in v2:
- document possible phy_interface values in sysfs-class-net-phydev
====================
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Document the different sysfs attributes that exist for PHY devices:
attached_dev, phy_has_fixups, phy_id and phy_interface.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we link the network device to its PHY device, document this
sysfs symbolic link.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is currently no way for a program scanning /sys to know whether a
network device is attached to a particular PHY device, just like the PHY
device is not pointed back to its attached network device.
Create a symbolic link in the network device's namespace named "phydev"
which points to the PHY device and create a symbolic link in the PHY
device's namespace named "attached_dev" that points back to the network
device. These links are set up during phy_attach_direct() and removed
during phy_detach() for symetry.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch extends the L2 cache controller node for the Amlogic Meson8
and Meson8b SoCs with some missing parameters. These are taken from the
Amlogic GPL kernel source.
Signed-off-by: Carlo Caione <carlo@endlessm.com>
[apply the change to Meson8 and Meson8b and updated description]
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Currently only meson6.dtsi and meson8.dtsi inherit the generic
meson.dtsi. However, since the Meson8b platform is basically a slightly
updated version of Meson8 we can safely inherit meson.dtsi. An indicator
for this are the nodes which are identical in meson.dtsi and
meson8b.dtsi (L2, gic, timer, uart_AO, uart_A, uart_B, uart_C).
Additionally this makes the following devices available on Meson8b which
were not avaialble before (however, since all affected drivers support
Meson6, Meson8 and the whole GX series there's no reason to assume that
they are not working):
- i2c_a and i2c_B
- the IR receiver
- SPFIC (SPI flash controller)
- the dwmac ethernet controller
Differences between Meson8 and Meson8b seem to be:
- ARM Cortex-A5 core instead of Cortex-A9 on Meson8
- dwmac on Meson8b supports RGMII
- small pinctrl updates
Inheriting meson.dtsi makes it easier to maintain by removing duplicate
definitions.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
The Amlogic Meson SoCs have most of the internal peripherals organized
in busses. Use them to make the dts easier to read and to avoid
duplicated register (bus) offset definitions.
The bus information is taken from the vendor kernel:
#define IO_CBUS_PHY_BASE 0xc1100000 ///2M
#define IO_AOBUS_PHY_BASE 0xc8100000 ///1M
There are more internal busses (such as the abp bus which seems to
contain audio, HDMI and Mali registers), but since we don't have
drivers for them yet these are not added (yet).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[khilman: minor whitespace fix]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
There is a race condition in llc_ui_bind if two or more processes/threads
try to bind a same socket.
If more processes/threads bind a same socket success that will lead to
two problems, one is this action is not what we expected, another is
will lead to kernel in unstable status or oops(in my simple test case,
cause llc2.ko can't unload).
The current code is test SOCK_ZAPPED bit to avoid a process to
bind a same socket twice but that is can't avoid more processes/threads
try to bind a same socket at the same time.
So, add lock_sock in llc_ui_bind like others, such as llc_ui_connect.
Signed-off-by: Lin Zhang <xiaolou4617@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu says:
====================
net: extend RTM_GETROUTE to return fib result
This series adds a new RTM_F_FIB_MATCH flag to return matched fib result
with RTM_GETROUTE. This is useful for applications and protocols in
userspace wanting to query the selected route.
examples (with patched iproute2):
ipv4:
----
$ip route show
default via 192.168.0.2 dev eth0
10.0.14.0/24
nexthop via 172.16.0.3 dev dummy0 weight 1
nexthop via 172.16.1.3 dev dummy1 weight 1
$ip route get 10.0.14.2
10.0.14.2 via 172.16.1.3 dev dummy1 src 172.16.1.1
cache
$ip route get fibmatch 10.0.14.2
10.0.14.0/24
nexthop via 172.16.0.3 dev dummy0 weight 1
nexthop via 172.16.1.3 dev dummy1 weight 1
ipv6:
----
$ip -6 route show
2001:db9:100::/120 metric 1024
nexthop via 2001:db8:2::2 dev dummy0 weight 1
nexthop via 2001:db8:12::2 dev dummy1 weight 1
$ip -6 route get 2001:db9:100::1
2001:db9:100::1 from :: via 2001:db8:12::2 dev dummy1 src 2001:db8:12::1 metric 1024 pref medium
$ip -6 route get fibmatch 2001:db9:100::1
2001:db9:100::/120 metric 1024
nexthop via 2001:db8:12::2 dev dummy1 weight 1
nexthop via 2001:db8:2::2 dev dummy0 weight 1
v2:
- pick up new forward port of patch-01 from david
- inet6_rtm_getroute: use container_of for rt6_info to
dst conversion
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support to return matched fib result when RTM_F_FIB_MATCH
flag is specified in RTM_GETROUTE request. This is useful for user-space
applications/controllers wanting to query a matching route.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds support to return matched fib result when RTM_F_FIB_MATCH
flag is specified in RTM_GETROUTE request. This is useful for user-space
applications/controllers wanting to query a matching route.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This flag when specified will return matched fib result in
response to a RTM_GETROUTE query.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert inet_rtm_getroute to use ip_route_input_rcu and
ip_route_output_key_hash_rcu passing the fib_result arg to both.
The rcu lock is held through the creation of the response, so the
rtable/dst does not need to be attached to the skb and is passed
to rt_fill_info directly.
In converting from ip_route_output_key to ip_route_output_key_hash_rcu
the xfrm_lookup_route in ip_route_output_flow is dropped since
flowi4_proto is not set for a route get request.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rt_fill_info has 1 caller with the event set to RTM_NEWROUTE. Given that
remove the arg and use RTM_NEWROUTE directly in rt_fill_info.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A later patch wants access to the fib result on an input route lookup
with the rcu lock held. Refactor ip_route_input_noref pushing the logic
between rcu_read_lock ... rcu_read_unlock into a new helper that takes
the fib_result as an input arg.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A later patch wants access to the fib result on an output route lookup
with the rcu lock held. Refactor __ip_route_output_key_hash, pushing
the logic between rcu_read_lock ... rcu_read_unlock into a new helper
with the fib_result as an input arg.
To keep the name length under control remove the leading underscores
from the name and add _rcu to the name of the new helper indicating it
is called with the rcu read lock held.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull block fixes from Jens Axboe:
"A collection of fixes that should go into this series. This contains:
- A set of NVMe fixes, pulled from Christoph. This includes a set of
fixes for the fiber channel bits from James Smart, rdma queue depth
fix from Marta, controller removal fixes from Ming, and some more
APST quirk updates from Andy.
- A blk-mq debugfs fix from Bart, fixing a problem with the
untangling of the sysfs and debugfs blk-mq bits that was added in
this series.
- Error code fix in add_partition() from Dan.
- A small series of fixes for the new blk-throttle code from Shaohua"
* 'for-linus' of git://git.kernel.dk/linux-block: (21 commits)
blk-mq: Only register debugfs attributes for blk-mq queues
nvme: Quirk APST on Intel 600P/P3100 devices
nvme: only setup block integrity if supported by the driver
nvme: replace is_flags field in nvme_ctrl_ops with a flags field
nvme-pci: consistencly use ctrl->device for logging
partitions/msdos: FreeBSD UFS2 file systems are not recognized
block: fix an error code in add_partition()
blk-throttle: force user to configure all settings for io.low
blk-throttle: respect 0 bps/iops settings for io.low
blk-throttle: output some debug info in trace
blk-throttle: add hierarchy support for latency target and idle time
nvme_fc: remove extra controller reference taken on reconnect
nvme_fc: correct nvme status set on abort
nvme_fc: set logging level on resets/deletes
nvme_fc: revise comment on teardown
nvme_fc: Support ctrl_loss_tmo
nvme_fc: get rid of local reconnect_delay
blk-mq: remove blk_mq_abort_requeue_list()
nvme: avoid to use blk_mq_abort_requeue_list()
nvme: use blk_mq_start_hw_queues() in nvme_kill_queues()
...
Pull PCI fixes from Bjorn Helgaas:
- fix PCI_ENDPOINT build error (merged for v4.12)
- fix Switchtec driver (merged for v4.12)
- fix imx6 config read timeouts, fallout from changing to non-postable
reads
- add PM "needs_resume" flag for i915 suspend issue
* tag 'pci-v4.12-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI/PM: Add needs_resume flag to avoid suspend complete optimization
PCI: imx6: Fix config read timeout handling
switchtec: Fix minor bug with partition ID register
switchtec: Use new cdev_device_add() helper function
PCI: endpoint: Make PCI_ENDPOINT depend on HAS_DMA
Pul ceph fixes from Ilya Dryomov:
"A bunch of make W=1 and static checker fixups, a RECONNECT_SEQ
messenger patch from Zheng and Luis' fallocate fix"
* tag 'ceph-for-4.12-rc3' of git://github.com/ceph/ceph-client:
ceph: check that the new inode size is within limits in ceph_fallocate()
libceph: cleanup old messages according to reconnect seq
libceph: NULL deref on crush_decode() error path
libceph: fix error handling in process_one_ticket()
libceph: validate blob_struct_v in process_one_ticket()
libceph: drop version variable from ceph_monmap_decode()
libceph: make ceph_msg_data_advance() return void
libceph: use kbasename() and kill ceph_file_part()
Pull MMC fixes from Ulf Hansson:
"This contains fixes to make the WiFi work again for the ARM64 Hikey
board.
Together with a couple of DTS updates for the Hikey board we have also
extended the mmc pwrseq_simple, to support a new power-off-delay-us DT
property, as that was required to enable a graceful power off sequence
for the WiFi chip"
* tag 'mmc-v4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
arm64: dts: hikey: Fix WiFi support
arm64: dts: hi6220: Move board data from the dwmmc nodes to hikey dts
arm64: dts: hikey: Add the SYS_5V and the VDD_3V3 regulators
arm64: dts: hi6220: Move the fixed_5v_hub regulator to the hikey dts
arm64: dts: hikey: Add clock for the pmic mfd
mfd: dts: hi655x: Add clock binding for the pmic
mmc: pwrseq_simple: Parse DTS for the power-off-delay-us property
mmc: dt: pwrseq-simple: Invent power-off-delay-us
Pull sound fixes from Takashi Iwai:
"This contains a few HD-audio device-specific quirks and an endianess
fix for USB-audio, as well as the update of quirk model list document.
All fixes are small and trivial.
The document update could have been postponed, but it's a good thing
for user and has absolutely zero risk of breakage, so included here"
* tag 'sound-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - apply STAC_9200_DELL_M22 quirk for Dell Latitude D430
ALSA: hda - Update the list of quirk models
ALSA: hda - Provide dual-codecs model option for a few Realtek codecs
ALSA: hda - Apply dual-codec quirk for MSI Z270-Gaming mobo
ALSA: hda - No loopback on ALC299 codec
ALSA: usb-audio: fix Amanero Combo384 quirk on big-endian hosts
Intel SDM says, that at most one LAPIC should be configured with ExtINT
delivery. KVM configures all LAPICs this way. This causes pic_unlock()
to kick the first available vCPU from the internal KVM data structures.
If this vCPU is not the BSP, but some not-yet-booted AP, the BSP may
never realize that there is an interrupt.
Fix that by enabling ExtINT delivery only for the BSP.
This allows booting a Linux guest without a TSC in the above situation.
Otherwise the BSP gets stuck in calibrate_delay_converge().
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The decision whether or not to exit from L2 to L1 on an lmsw instruction is
based on bogus values: instead of using the information encoded within the
exit qualification, it uses the data also used for the mov-to-cr
instruction, which boils down to using whatever is in %eax at that point.
Use the correct values instead.
Without this fix, an L1 may not get notified when a 32-bit Linux L2
switches its secondary CPUs to protected mode; the L1 is only notified on
the next modification of CR0. This short time window poses a problem, when
there is some other reason to exit to L1 in between. Then, L2 will be
resumed in real mode and chaos ensues.
Signed-off-by: Jan H. Schönherr <jschoenh@amazon.de>
Reviewed-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pull drm fixes from Dave Airlie:
"Not a whole lot happening here, a set of amdgpu fixes and one core
deadlock fix, and some misc drivers fixes"
* tag 'drm-fixes-for-v4.12-rc3' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: fix null point error when rmmod amdgpu.
drm/amd/powerplay: fix a signedness bugs
drm/amdgpu: fix NULL pointer panic of emit_gds_switch
drm/radeon: Unbreak HPD handling for r600+
drm/amd/powerplay/smu7: disable mclk switching for high refresh rates
drm/amd/powerplay/smu7: add vblank check for mclk switching (v2)
drm/radeon/ci: disable mclk switching for high refresh rates (v2)
drm/amdgpu/ci: disable mclk switching for high refresh rates (v2)
drm/amdgpu: fix fundamental suspend/resume issue
drm/gma500/psb: Actually use VBT mode when it is found
drm: Fix deadlock retry loop in page_flip_ioctl
drm: qxl: Delay entering atomic context during cursor update
drm/radeon: Fix oops upon driver load on PowerXpress laptops
Looks like nobody bothered to configure USB host for 37xx-evm
when we converted things to device tree, so let's add it. This
is similar to beagleboard configuration with few extra quirks
to configure the port. And as with beagleboard, OHCI won't work
because there is no USB LS/FS PHY. A HS USB hub is needed to use
devices like keyboard and mice.
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The at24 driver allows to register I2C EEPROM chips using different vendor
and devices, but the I2C subsystem does not take the vendor into account
when matching using the I2C table since it only has device entries.
But when matching using an OF table, both the vendor and device has to be
taken into account so the driver defines only a set of compatible strings
using the "atmel" vendor as a generic fallback for compatible I2C devices.
So add this generic fallback to the device node compatible string to make
the device to match the driver using the OF device ID table.
Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
As long as the kernel cmdline has "earlycon" in it, this allows
seeing debug messages earlier and does not require DEBUG_LL to
be enabled.
Acked-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
As long as the kernel cmdline has "earlycon" in it, this allows
seeing debug messages earlier and does not require DEBUG_LL to
be enabled.
Signed-off-by: Tony Lindgren <tony@atomide.com>
This adds the serial slave device for the WL1835 Bluetooth interface.
Signed-off-by: Ricardo Salveti <ricardo.salveti@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Preemption can occur during cancel preemption timer, and there will be
inconsistent status in lapic, vmx and vmcs field.
CPU0 CPU1
preemption timer vmexit
handle_preemption_timer(vCPU0)
kvm_lapic_expired_hv_timer
vmx_cancel_hv_timer
vmx->hv_deadline_tsc = -1
vmcs_clear_bits
/* hv_timer_in_use still true */
sched_out
sched_in
kvm_arch_vcpu_load
vmx_set_hv_timer
write vmx->hv_deadline_tsc
vmcs_set_bits
/* back in kvm_lapic_expired_hv_timer */
hv_timer_in_use = false
...
vmx_vcpu_run
vmx_arm_hv_run
write preemption timer deadline
spurious preemption timer vmexit
handle_preemption_timer(vCPU0)
kvm_lapic_expired_hv_timer
WARN_ON(!apic->lapic_timer.hv_timer_in_use);
This can be reproduced sporadically during boot of L2 on a
preemptible L1, causing a splat on L1.
WARNING: CPU: 3 PID: 1952 at arch/x86/kvm/lapic.c:1529 kvm_lapic_expired_hv_timer+0xb5/0xd0 [kvm]
CPU: 3 PID: 1952 Comm: qemu-system-x86 Not tainted 4.12.0-rc1+ #24 RIP: 0010:kvm_lapic_expired_hv_timer+0xb5/0xd0 [kvm]
Call Trace:
handle_preemption_timer+0xe/0x20 [kvm_intel]
vmx_handle_exit+0xc9/0x15f0 [kvm_intel]
? lock_acquire+0xdb/0x250
? lock_acquire+0xdb/0x250
? kvm_arch_vcpu_ioctl_run+0xdf3/0x1ce0 [kvm]
kvm_arch_vcpu_ioctl_run+0xe55/0x1ce0 [kvm]
kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? __fget+0xf3/0x210
do_vfs_ioctl+0xa4/0x700
? __fget+0x114/0x210
SyS_ioctl+0x79/0x90
do_syscall_64+0x8f/0x750
? trace_hardirqs_on_thunk+0x1a/0x1c
entry_SYSCALL64_slow_path+0x25/0x25
This patch fixes it by disabling preemption while cancelling
preemption timer. This way cancel_hv_timer is atomic with
respect to kvm_arch_vcpu_load.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Enable the System Mailboxes 5 and 6 and the corresponding
child sub-mailbox (IPC 3.x) nodes for the AM571x IDK board.
This is needed to enable communication with the respective
remote processors IPU1, IPU2, and DSP1 from the MPU.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Enable the System Mailboxes 5 and 6 and the corresponding
child sub-mailbox (IPC 3.x) nodes for the AM572x IDK board.
This is needed to enable communication with the respective
remote processors IPU1, IPU2, DSP1 and DSP2 from the MPU.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
