The Colombus development kit uses an optional 2048x1536 edp panel using
an anx9804 parallel lcd to edp converter. The anx9804 chip is controlled
via an i2c bus which is connected to 2 regular gpio pins.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
The function can return negative value.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function can return negative value.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jiri Benc says:
====================
vxlan: support both IPv4 and IPv6 sockets
Note: this needs net merged into net-next in order to apply.
It's currently not easy enough to work with metadata based vxlan tunnels. In
particular, it's necessary to create separate network interfaces for IPv4
and IPv6 tunneling. Assigning an IPv6 address to an IPv4 interface is
allowed yet won't do what's expected. With route based tunneling, one has to
pay attention to use the vxlan interface opened with the correct family.
Other users of this (openvswitch) would need to always create two vxlan
interfaces.
Furthermore, there's no sane API for creating an IPv6 vxlan metadata based
interface.
This patchset simplifies this by opening both IPv4 and IPv6 socket if the
vxlan interface has the metadata flag (IFLA_VXLAN_COLLECT_METADATA) set.
Assignment of addresses etc. works as expected after this.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
For metadata based vxlan interface, open both IPv4 and IPv6 socket. This is
much more user friendly: it's not necessary to create two vxlan interfaces
and pay attention to using the right one in routing rules.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make vxlan_sock_add both alloc the socket and attach it to vxlan_dev. Let
vxlan_sock_release accept vxlan_dev as its parameter instead of vxlan_sock.
This makes vxlan_sock_add and vxlan_sock release complementary. It reduces
code duplication in the next patch.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When fixing the TSO support I noticed we just mask ->gso_size with the
MSSMask value and don't care about the consequences.
Provide a .ndo_features_check() method which drops the NETIF_F_TSO
feature for any skb which would exceed the maximum, and thus forces it
to be segmented by software.
Then we can stop the masking in cp_start_xmit(), and just WARN if the
maximum is exceeded, which should now never happen.
Finally, Francois Romieu noticed that we didn't even have the right
value for MSSMask anyway; it should be 0x7ff (11 bits) not 0xfff.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I fixed TSO. Hardware checksum and scatter/gather also appear to be
working correctly both on real hardware and in QEMU's emulation.
Let's enable them by default and see if anyone screams...
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These fixes are mainly regression fixes triggered by irq changes,
common clock framework introduction and sound side-effect of
other platforms.
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Merge tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux into fixes
ARM: pxa: fixes for v4.3
These fixes are mainly regression fixes triggered by irq changes,
common clock framework introduction and sound side-effect of
other platforms.
* tag 'pxa-fixes-v4.3' of https://github.com/rjarzmik/linux:
ARM: pxa: balloon3: Fix build error
ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding
ARM: pxa: fix DFI bus lockups on startup
Signed-off-by: Olof Johansson <olof@lixom.net>
- Two more patches to fix most of the MMC regressions with the
PBIAS regulator changes. At least two MMC driver related issues
still seems to remain for omap3 legacy booting and omap4 duovero.
Note that the dts changes depend on a recent regulator fix, and
are based on the regulator commit now in mainline kernel
- Enable autoidle for am43xx clocks to prevent clocks from staying
always on
- Fix i2c5 pinctrl offsets for omap5-uevm
- Enable PCA953X as that's needed for HDMI to work on omap5
- Update phy supplies for beagle x15 beta board
- Use palmas-usb for on beagle x15 to start using the related
driver that recently got merged
-
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Merge tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.3-rc cycle:
- Two more patches to fix most of the MMC regressions with the
PBIAS regulator changes. At least two MMC driver related issues
still seems to remain for omap3 legacy booting and omap4 duovero.
Note that the dts changes depend on a recent regulator fix, and
are based on the regulator commit now in mainline kernel
- Enable autoidle for am43xx clocks to prevent clocks from staying
always on
- Fix i2c5 pinctrl offsets for omap5-uevm
- Enable PCA953X as that's needed for HDMI to work on omap5
- Update phy supplies for beagle x15 beta board
- Use palmas-usb for on beagle x15 to start using the related
driver that recently got merged
* tag 'omap-for-v4.3/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: fix omap2+ address translation for pbias
ARM: dts: am57xx-beagle-x15: use palmas-usb for USB2
ARM: omap2plus_defconfig: enable GPIO_PCA953X
ARM: dts: omap5-uevm.dts: fix i2c5 pinctrl offsets
ARM: OMAP2+: AM43XX: Enable autoidle for clks in am43xx_init_late
ARM: dts: am57xx-beagle-x15: Update Phy supplies
regulator: pbias: program pbias register offset in pbias driver
ARM: omap2plus_defconfig: Enable MUSB DMA support
ARM: DRA752: Add ID detect for ES2.0
ARM: OMAP3: vc: fix 'or' always true warning
ARM: OMAP2+: Fix booting if no timer parent clock is available
ARM: OMAP2+: omap-device: fix race deferred probe of omap_hsmmc vs omap_device_late_init
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull crypto fixes from Herbert Xu:
"This fixes the following issues:
- check the return value of platform_get_irq as signed int in xgene.
- skip adf_dev_restore on virtual functions in qat.
- fix double-free with backlogged requests in marvell_cesa"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: xgene - fix handling platform_get_irq
crypto: qat - VF should never trigger SBR on PH
crypto: marvell - properly handle CRYPTO_TFM_REQ_MAY_BACKLOG-flagged requests
Pull SCSI target fixes from Nicholas Bellinger:
"This includes a iser-target series from Jenny + Sagi @ Mellanox that
addresses the few remaining active I/O shutdown bugs, along with a
patch to support zero-copy for immediate data payloads that gives a
nice performance improvement for small block WRITEs.
Also included are some recent >= v4.2 regression bug-fixes. The most
notable is a RCU conversion regression for SPC-3 PR registrations, and
recent removal of obsolete RFC-3720 markers that introduced a login
regression bug with MSFT iSCSI initiators.
Thanks to everyone who has been testing + reporting bugs for v4.x"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
iscsi-target: Avoid OFMarker + IFMarker negotiation
target: Make TCM_WRITE_PROTECT failure honor D_SENSE bit
target: Fix target_sense_desc_format NULL pointer dereference
target: Propigate backend read-only to core_tpg_add_lun
target: Fix PR registration + APTPL RCU conversion regression
iser-target: Skip data copy if all the command data comes as immediate
iser-target: Change the recv buffers posting logic
iser-target: Fix pending connections handling in target stack shutdown sequnce
iser-target: Remove np_ prefix from isert_np members
iser-target: Remove unused variables
iser-target: Put the reference on commands waiting for unsol data
iser-target: remove command with state ISTATE_REMOVE
Here are some USB driver fixes for 4.3-rc3.
There's the usual assortment of new device ids, combined with xhci and
gadget driver fixes. Full details in the shortlog. All of these have
been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB driver fixes for 4.3-rc3.
There's the usual assortment of new device ids, combined with xhci and
gadget driver fixes. Full details in the shortlog. All of these have
been in linux-next with no reported problems"
* tag 'usb-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (34 commits)
MAINTAINERS: remove amd5536udc USB gadget driver maintainer
USB: whiteheat: fix potential null-deref at probe
xhci: init command timeout timer earlier to avoid deleting it uninitialized
xhci: change xhci 1.0 only restrictions to support xhci 1.1
usb: xhci: exit early in xhci_setup_device() if we're halted or dying
usb: xhci: stop everything on the first call to xhci_stop
usb: xhci: Clear XHCI_STATE_DYING on start
usb: xhci: lock mutex on xhci_stop
xhci: Move xhci_pme_quirk() behind #ifdef CONFIG_PM
xhci: give command abortion one more chance before killing xhci
usb: Use the USB_SS_MULT() macro to get the burst multiplier.
usb: dwc3: gadget: Fix BUG in RT config
usb: musb: fix cppi channel teardown for isoch transfer
usb: phy: isp1301: Export I2C module alias information
usb: gadget: drop null test before destroy functions
usb: gadget: dummy_hcd: in transfer(), return data sent, not limit
usb: gadget: dummy_hcd: fix rescan logic for transfer
usb: gadget: dummy_hcd: fix unneeded else-if condition
usb: gadget: dummy_hcd: emulate sending zlp in packet logic
usb: musb: dsps: fix polling in device-only mode
...
Here is one serial driver fix for 4.3-rc3 that resolves a module loading
issue due to splitting up of the 8250 driver into smaller pieces. It's
been in linux-next with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull serial driver fix from Greg KH:
"Here is one serial driver fix for 4.3-rc3 that resolves a module
loading issue due to splitting up of the 8250 driver into smaller
pieces. It's been in linux-next with no reported problems"
* tag 'tty-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial: Add missing module license for 8250_base.ko
Here are some tiny staging driver and documentation fixes for 4.3-rc3.
All of these resolve reported issues that people have found and have
been in the linux-next tree for a while with no problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some tiny staging driver and documentation fixes for 4.3-rc3.
All of these resolve reported issues that people have found and have
been in the linux-next tree for a while with no problems"
* tag 'staging-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
MAINTAINERS: Update email address for Martyn Welch
staging: ion: fix corruption of ion_import_dma_buf
staging: dgap: Remove myself from the MAINTAINERS file
staging: most: Add dependency to HAS_IOMEM
staging: unisys: remove reference of visorutil
staging: unisys: visornic: handle error return from device registration
staging: unisys: stop device registration before visorbus registration
staging: unisys: visorbus: Unregister driver on error
staging: unisys: visornic: Fix receive bytes statistics
staging: unisys: unregister netdev when create debugfs fails
staging: fbtft: replace master->setup() with spi_setup()
staging: fbtft: fix 9-bit SPI support detection
staging/lustre: change Lustre URLs and mailing list
staging/android: Update ION TODO per LPC discussion
Staging: most: MOST and MOSTCORE should depend on HAS_DMA
staging: most: fix HDM_USB dependencies and build errors
Here is one driver core fix for 4.3-rc3 that resolves a reported oops.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is one driver core fix for 4.3-rc3 that resolves a reported oops"
* tag 'driver-core-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
cpu/cacheinfo: Fix teardown path
Here's some tiny char and misc driver fixes that resolve some reported
errors for 4.3-rc3. All of these have been in linux-next with no
problems for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here's some tiny char and misc driver fixes that resolve some reported
errors for 4.3-rc3.
All of these have been in linux-next with no problems for a while"
* tag 'char-misc-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
extcon: Fix attached value returned by is_extcon_changed
Drivers: hv: vmbus: fix init_vp_index() for reloading hv_netvsc
mei: fix debugfs files leak on error path
thunderbolt: Allow loading of module on recent Apple MacBooks with thunderbolt 2 controller
Conflicts:
net/ipv4/arp.c
The net/ipv4/arp.c conflict was one commit adding a new
local variable while another commit was deleting one.
Signed-off-by: David S. Miller <davem@davemloft.net>
The mioa701 is using the wm9713 for audio, battery and touchscreen. Add
the missing audio part, which disappeared.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Add io memory and dma requestor lines to the irda pxa device. This is
part of the conversion of pxaficp_ir to dmaengine, and to shrink its
adherence to 'mach' includes.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Tested-by: Petr Cvek <petr.cvek@tul.cz>
* fix signedness in beacon statistics;
* deinline some functions to reduce size when device tracing is enabled;
* filter beacons out in AP mode when no stations are associated;
* deprecate firmwares version -12;
* fix a runtime PM vs. legacy suspend race;
* one-liner fix for a ToF bug;
* clean-ups in the rx code;
* small debugging improvement;
* fix WoWLAN with new firmware versions;
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Merge tag 'iwlwifi-next-for-kalle-2015-09-21' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
* some debugfs improvements;
* fix signedness in beacon statistics;
* deinline some functions to reduce size when device tracing is enabled;
* filter beacons out in AP mode when no stations are associated;
* deprecate firmwares version -12;
* fix a runtime PM vs. legacy suspend race;
* one-liner fix for a ToF bug;
* clean-ups in the rx code;
* small debugging improvement;
* fix WoWLAN with new firmware versions;
Some platforms really don't like DMA bursts of 256 bytes, and this
causes the firmware to crash when sending beacons.
Also, changing this based on the firmware version does not seem to make
much sense, so use 128 bytes for all versions.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
OpenWrt user reported b43 doesn't probe wireless core on SoC BCM5356A1:
[ 0.000000] bcma: bus0: Found chip with id 0x5356, rev 0x01 and package 0x04
it is because this chip uses different 802.11 core revison than others:
[ 0.000000] bcma: bus0: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x15, class 0x0)
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Brand: Airlive (Ovislink Corp.)
Name: Turbo-G USB Adaptor
Model: WT-2000USB
USB ID: 1b75:3070
Reported-and-tested-by: Michael Coates <michlinux@hotmail.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
ath9k inserts padding between the 802.11 header and the data area (to
align it). Since it didn't declare this extra required headroom, this
led to some nasty issues like randomly dropped packets in some setups.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
If either twl4030_charger or twl4030_madc is configured as MODULE,
we get build (link) errors.
To solve, the direct call of twl4030_get_madc_conversion() is replaced
by a call to iio_read_channel_processed().
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Added new iio properties which are required for twl4030-charger driver and
allow to use twl4030-madc indirectly.
Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests")
threaded IRQs without a primary handler need to be requested with
IRQF_ONESHOT, otherwise the request will fail.
scripts/coccinelle/misc/irqf_oneshot.cocci detected this issue.
Fixes: b5874f33bb ("wm831x_power: Use genirq")
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Pointed out by Dan Carpenter via smatch code analysis tool
CC: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Steve French <steve.french@primarydata.com>
Pull networking fixes from David Miller:
1) When we run a tap on netlink sockets, we have to copy mmap'd SKBs
instead of cloning them. From Daniel Borkmann.
2) When converting classical BPF into eBPF, fix the setting of the
source reg to BPF_REG_X. From Tycho Andersen.
3) Fix igmpv3/mldv2 report parsing in the bridge multicast code, from
Linus Lussing.
4) Fix dst refcounting for ipv6 tunnels, from Martin KaFai Lau.
5) Set NLM_F_REPLACE flag properly when replacing ipv6 routes, from
Roopa Prabhu.
6) Add some new cxgb4 PCI device IDs, from Hariprasad Shenai.
7) Fix headroom tests and SKB leaks in ipv6 fragmentation code, from
Florian Westphal.
8) Check DMA mapping errors in bna driver, from Ivan Vecera.
9) Several 8139cp bug fixes (dev_kfree_skb_any in interrupt context,
misclearing of interrupt status in TX timeout handler, etc.) from
David Woodhouse.
10) In tipc, reset SKB header pointer after skb_linearize(), from Erik
Hugne.
11) Fix autobind races et al. in netlink code, from Herbert Xu with
help from Tejun Heo and others.
12) Missing SET_NETDEV_DEV in sunvnet driver, from Sowmini Varadhan.
13) Fix various races in timewait timer and reqsk_queue_hadh_req, from
Eric Dumazet.
14) Fix array overruns in mac80211, from Johannes Berg and Dan
Carpenter.
15) Fix data race in rhashtable_rehash_one(), from Dmitriy Vyukov.
16) Fix race between poll_one_napi and napi_disable, from Neil Horman.
17) Fix byte order in geneve tunnel port config, from John W Linville.
18) Fix handling of ARP replies over lightweight tunnels, from Jiri
Benc.
19) We can loop when fib rule dumps cross multiple SKBs, fix from Wilson
Kok and Roopa Prabhu.
20) Several reference count handling bug fixes in the PHY/MDIO layer
from Russel King.
21) Fix lockdep splat in ppp_dev_uninit(), from Guillaume Nault.
22) Fix crash in icmp_route_lookup(), from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
net: Fix panic in icmp_route_lookup
net: update docbook comment for __mdiobus_register()
ppp: fix lockdep splat in ppp_dev_uninit()
net: via/Kconfig: GENERIC_PCI_IOMAP required if PCI not selected
phy: marvell: add link partner advertised modes
net: fix net_device refcounting
phy: add phy_device_remove()
phy: fixed-phy: properly validate phy in fixed_phy_update_state()
net: fix phy refcounting in a bunch of drivers
of_mdio: fix MDIO phy device refcounting
phy: add proper phy struct device refcounting
phy: fix mdiobus module safety
net: dsa: fix of_mdio_find_bus() device refcount leak
phy: fix of_mdio_find_bus() device refcount leak
ip6_tunnel: Reduce log level in ip6_tnl_err() to debug
ip6_gre: Reduce log level in ip6gre_err() to debug
fib_rules: fix fib rule dumps across multiple skbs
bnx2x: byte swap rss_key to comply to Toeplitz specs
net: revert "net_sched: move tp->root allocation into fw_init()"
lwtunnel: remove source and destination UDP port config option
...
User visible:
- Fix copying of /proc/kcore made to the ~/.debug/ DSO cache to allow using
objdump with kcore files (Adrian Hunter)
- Fix adding perf probes in kernel module functions (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix copying of /proc/kcore made to the ~/.debug/ DSO cache to allow using
objdump with kcore files. (Adrian Hunter)
- Fix adding perf probes in kernel module functions. (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Both earlycon and eralyprintk depend on the bootloader setup UART
clocks being retained. This patch adds the common logic to detect such
situations and make the information available to the clock drivers, as
well as adding the facilities to disable those clocks at the end of
the kernel init.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
On a Skylake with 1500MHz base frequency,
the TSC runs at 1512MHz.
This is because the TSC is no longer in the n*100 MHz BCLK domain,
but is now in the m*24MHz crystal clock domain. (24 MHz * 63 = 1512 MHz)
This adds error to several calculations in turbostat,
unless the TSC sample sizes are adjusted for this difference.
Note that calculations in the time domain are immune
from this issue, as the timing sub-system has already
calibrated the TSC against a known wall clock.
AVG_MHz = APERF_delta/measurement_interval
need no adjustment. APERF_delta is in the BCLK domain,
and measurement_interval is in the time domain.
TSC_MHz = TSC_delta/measurement_interval
needs no adjustment -- as we really do want to report
the actual measured TSC delta here, and measurement_interval
is in the accurate time domain.
%Busy = MPERF_delta/TSC_delta
needs adjustment to use TSC_BCLK_DOMAIN_delta.
TSC_BCLK_DOMAIN_delta = TSC_delta * base_hz / tsc_hz
Bzy_MHz = TSC_delta/APERF_delta/MPERF_delta/measurement_interval
need adjustment as above.
No other metrics in turbostat need to be adjusted.
Before:
CPU Avg_MHz %Busy Bzy_MHz TSC_MHz
- 550 24.84 2216 1512
0 2191 98.73 2219 1514
2 0 0.01 2130 1512
1 9 0.43 2016 1512
3 2 0.08 2016 1512
After:
CPU Avg_MHz %Busy Bzy_MHz TSC_MHz
- 550 25.05 2198 1512
0 2190 99.62 2199 1512
2 0 0.01 2152 1512
1 9 0.46 2000 1512
3 2 0.10 2000 1512
Note that in this example, the "Before" Bzy_MHz
was reported as exceeding the 2200 max turbo rate.
Also, even a pinned spin loop would not be reported
as over 99% busy.
Signed-off-by: Len Brown <len.brown@intel.com>
KNL increments APERF and MPERF every 1024 clocks.
This is compliant with the architecture specification,
which requires that only the ratio of APERF/MPERF need be valid.
However, turbostat takes advantage of the fact that these
two MSRs increment every un-halted clock
at the actual and base frequency:
AVG_MHz = APERF_delta/measurement_interval
%Busy = MPERF_delta/TSC_delta
This quirk is needed for these calculations to also work on KNL,
which would otherwise show a value 1024x smaller than expected.
Signed-off-by: Hubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Staring in Linux-4.3-rc1,
commit 6fb3143b56 ("tools/power turbostat: dump CONFIG_TDP")
touches MSR 0x648, which is not supported on IVB-Xeon.
This results in "turbostat --debug" exiting on those systems:
turbostat: /dev/cpu/2/msr offset 0x648 read failed: Input/output error
Remove IVB-Xeon from the list of machines supporting with that MSR.
Signed-off-by: Len Brown <len.brown@intel.com>
Update the docbook comment for __mdiobus_register() to include the new
module owner argument. This resolves a warning found by the 0-day
builder.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas can no longer work on the driver, so he asked me to mark the
MAINTAINER entry as "Orphan" with the hope that someone else would
someday pick it up.
Cc: Thomas Dahlmann <dahlmann.thomas@arcor.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When performing sendonly joins, we queue the packets that trigger
the join until the join completes. This may take on the order of
hundreds of milliseconds. It is easy to have many more than three
packets come in during that time. Expand the maximum queue depth
in order to try and prevent dropped packets during the time it
takes to join the multicast group.
Signed-off-by: Doug Ledford <dledford@redhat.com>
Log a 'critical' message if the max frequency is reduced below nominal
frequency. We already log 'info' message if the max frequency is
capped below turbo frequency. CPU should guarantee atleast nominal
frequency, but not turbo frequency in all system configurations and
environments. So report the pmax throttling with severity when Pmax is
dipped below nominal frequency.
Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
For i.MX6UL, the clock switch flow is slightly different from
other i.MX6 SOCs. It has a 'secondary_sel' clk that will be used
when the CPU freq is higher than 396MHz. So the clock switch flow in
'set_target' callback need to update to support i.MX6UL in the common
i.MX6 SOC cpufreq driver.
Signed-off-by: Bai Ping <b51503@freescale.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
CONFIG_PM ifdefs are superfluous and can be removed.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
