MAARs should be initialised on each CPU (or rather, core) in the system
in order to achieve consistent behaviour & performance. Previously they
have only been initialised on the boot CPU which leads to performance
problems if tasks are later scheduled on a secondary CPU, particularly
if those tasks make use of unaligned vector accesses where some CPUs
don't handle any cases in hardware for non-speculative memory regions.
Fix this by recording the MAAR configuration from the boot CPU and
applying it to secondary CPUs as part of their bringup.
Reported-by: Doug Gilmore <doug.gilmore@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Hemmo Nieminen <hemmo.nieminen@iki.fi>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11239/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Verifying that the MAAR configuration is as expected is useful when
debugging the performance of a system. Print out the memory regions
configured via MAAR along with their attributes.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11238/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
maar_init was previously only compiled when CONFIG_NEED_MULTIPLE_NODES
was not set, which has been fine since it is only called from the
standard implementation of mem_init which has the same condition. In
preparation for calling it from the SMP startup code on secondary CPUs,
move maar_init outside of the #ifndef such that it is always compiled.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Patchwork: https://patchwork.linux-mips.org/patch/11237/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
gic_handle_shared_int reads the GIC interrupt pending & mask registers
directly into a bitmap, which is defined as an array of unsigned longs.
The GIC pending registers may be 32 bits wide if the CM is older than
CM3, regardless of the bit width of the CPU, but for MIPS64 kernels
the unsigned longs in the bitmap will be 64 bits wide. In this case we
need to perform 2 x 32 bit reads per 64 bit unsigned long in order to
avoid missing interrupts.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11213/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Make use of the mips_cm_vp_id function to convert from Linux CPU numbers
to the VP IDs used by hardware, which are not identical in all systems.
Without doing so we map interrupts to incorrect VP(E)s.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11212/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The VP ID of a given CPU may not match up with the CPU number used by
Linux. For example, if the width of the VP part of the VP ID is wider
than log2(number of VPs per core) and the system has multiple cores then
this will be the case. Alternatively, if a pre-r6 system implements the
MT ASE with multiple VPEs per core and Linux is built without support
for the MT ASE then the numbers won't match up either. Provide a
function to convert from CPU number to VP ID.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/11211/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Pull x86 fixes from Thomas Gleixner:
"Two bugfixes from Andy addressing at least some of the subtle NMI
related wreckage which has been reported by Sasha Levin"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/nmi/64: Fix a paravirt stack-clobbering bug in the NMI code
x86/paravirt: Replace the paravirt nop with a bona fide empty function
Pull irq fix from Thomass Gleixner:
"A bugfix for the atmel aic5 irq chip driver which caches the wrong
data and thereby breaking resume"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/atmel-aic5: Use per chip mask caches in mask/unmask()
Pull ARM fixes from Russell King:
"Just two fixes: wire up the new system calls added during the last
merge window, and fix another user access site"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: alignment: fix alignment handling for uaccess changes
ARM: wire up new syscalls
Our first real batch of fixes this release cycle. There's a collection of
them here:
- A fixup for a build breakage that hits on arm64 allmodconfig in QCOM SCM
firmware drivers
- MMC fixes for OMAP that had quite a bit of breakage this merge window.
- Misc build/warning fixes on PXA and OMAP
- A couple of minor fixes for Beagleboard X15 which is now starting to see
a few more users in the wild
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Our first real batch of fixes this release cycle. Nothing really
concerning, and diffstat is a bit inflated due to some DT contents
moving around on STi platforms.
There's a collection of them here:
- A fixup for a build breakage that hits on arm64 allmodconfig in
QCOM SCM firmware drivers
- MMC fixes for OMAP that had quite a bit of breakage this merge
window.
- Misc build/warning fixes on PXA and OMAP
- A couple of minor fixes for Beagleboard X15 which is now starting
to see a few more users in the wild"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
ARM: sti: dt: adapt DT to fix probe/bind issues in DRM driver
ARM: dts: fix omap2+ address translation for pbias
firmware: qcom: scm: Add function stubs for ARM64
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
ARM: pxa: balloon3: Fix build error
ARM: dts: Fixup model name for HP t410 dts
ARM: dts: DRA7: fix a typo in ethernet
ARM: omap2plus_defconfig: make PCF857x built-in
ARM: dts: Use ti,pbias compatible string for pbias
ARM: OMAP5: Cleanup options for SoC only build
ARM: DRA7: Select missing options for SoC only build
ARM: OMAP2+: board-generic: Remove stale of_irq macros
ARM: OMAP4+: PM: erratum is used by OMAP5 and DRA7 as well
ARM: dts: omap3-igep: Move eth IRQ pinmux to IGEPv2 common dtsi
ARM: dts: am57xx-beagle-x15: Add wakeup irq for mcp79410
ARM: dts: am335x-phycore-som: Fix mpu voltage
...
Pull CIFS fixes from Steve French:
"Four fixes from testing at the recent SMB3 Plugfest including two
important authentication ones (one fixes authentication problems to
some popular servers when clock times differ more than two hours
between systems, the other fixes Kerberos authentication for SMB3)"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
fix encryption error checks on mount
[SMB3] Fix sec=krb5 on smb3 mounts
cifs: use server timestamp for ntlmv2 authentication
disabling oplocks/leases via module parm enable_oplocks broken for SMB3
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>
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
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>
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>
Now we have dedicated interface acpi_penalize_sci_irq() to penalize
ISA IRQ used by ACPI SCI, so remove duplicated code to penalize ACPI SCI
in acpi_irq_penalty_init().
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Avoid IRQs occupied by ISA IRQs when allocating IRQs for PCI link devices,
otherwise it may cause interrupt storm due to incompatible pin attributes.
This issue was triggered on a KVM virtual machine, which
1) uses IRQ9 for SCI in high level mode.
2) defines an PCI interrupt link device (LNKS) with IRQ9 as the only
possible irq.
3) has an PCI device referring to link device LNKS.
So it causes interrupt storm when enabling the PCI device because PCI IRQ
works in low level mode.
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When query handler is not found, "result" is actually stil 0, and
"struct acpi_ec_query" is not NULL, so the deletion code of
"struct acpi_ec_query" at the end of the function cannot be invoked.
As a consequence, memory leak can be observed.
The issue is introduced by this commit:
Commit: 02b771b64b
Subject: ACPI / EC: Fix an issue caused by the serialized _Qxx
This patch fixes such memory leakage.
Fixes: 02b771b64b (ACPI / EC: Fix an issue caused by the serialized _Qxx evaluations)
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull another cgroup fix from Tejun Heo:
"The cgroup writeback support got inadvertently enabled for traditional
hierarchies revealing two regressions which are currently being worked
on. It shouldn't have been enabled on traditional hierarchies, so
disable it on them. This is enough to make the regressions go away
for people who aren't experimenting with cgroup"
* 'for-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup, writeback: don't enable cgroup writeback on traditional hierarchies
The builds of allmodconfig of avr32 is failing with:
drivers/net/ethernet/via/via-rhine.c:1098:2: error: implicit declaration
of function 'pci_iomap' [-Werror=implicit-function-declaration]
drivers/net/ethernet/via/via-rhine.c:1119:2: error: implicit declaration
of function 'pci_iounmap' [-Werror=implicit-function-declaration]
The generic empty pci_iomap and pci_iounmap is used only if CONFIG_PCI
is not defined and CONFIG_GENERIC_PCI_IOMAP is defined.
Add GENERIC_PCI_IOMAP in the dependency list for VIA_RHINE as we are
getting build failure when CONFIG_PCI and CONFIG_GENERIC_PCI_IOMAP both
are not defined.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Read the standard link partner advertisment registers and store it in
phydev->lp_advertising, so ethtool can report this information to
userspace via ethtool. Zero it as per genphy if autonegotiation is
disabled. Tested with a Marvell 88E1512 PHY.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull btrfs fixes from Chris Mason:
"This is an assorted set I've been queuing up:
Jeff Mahoney tracked down a tricky one where we ended up starting IO
on the wrong mapping for special files in btrfs_evict_inode. A few
people reported this one on the list.
Filipe found (and provided a test for) a difficult bug in reading
compressed extents, and Josef fixed up some quota record keeping with
snapshot deletion. Chandan killed off an accounting bug during DIO
that lead to WARN_ONs as we freed inodes"
* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: keep dropped roots in cache until transaction commit
Btrfs: Direct I/O: Fix space accounting
btrfs: skip waiting on ordered range for special files
Btrfs: fix read corruption of compressed and shared extents
Btrfs: remove unnecessary locking of cleaner_mutex to avoid deadlock
Btrfs: don't initialize a space info as full to prevent ENOSPC
Since IPoIB should, as much as possible, emulate how multicast
sends work on Ethernet for regular TCP/IP apps, there should be
no requirement to subscribe to a multicast group before your
sends are properly sent. However, due to the difference in how
multicast is handled on InfiniBand, we must join the appropriate
multicast group before we can send to it. Previously we tried
not to trigger the auto-create feature of the subnet manager when
doing this because we didn't have tracking of these sendonly
groups and the auto-creation might never get undone. The previous
patch added timing to these sendonly joins and allows us to
leave them after a reasonable idle expiration time. So supply
all of the information needed to auto-create group.
Signed-off-by: Doug Ledford <dledford@redhat.com>
On neighbor expiration, check to see if the neighbor was actually a
sendonly multicast join, and if so, leave the multicast group as we
expire the neighbor.
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Highlights include:
Stable patches:
- fix v4.2 SEEK on files over 2 gigs
- Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
- Fix recovery of recalled read delegations
Bugfixes:
- Fix a case where NFSv4 fails to send CLOSE after a server reboot
- Fix sunrpc to wait for connections to complete before retrying
- Fix sunrpc races between transport connect/disconnect and shutdown
- Fix an infinite loop when layoutget fail with BAD_STATEID
- nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
- Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
- Fix layoutreturn/close ordering issues.
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Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable patches:
- fix v4.2 SEEK on files over 2 gigs
- Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
- Fix recovery of recalled read delegations
Bugfixes:
- Fix a case where NFSv4 fails to send CLOSE after a server reboot
- Fix sunrpc to wait for connections to complete before retrying
- Fix sunrpc races between transport connect/disconnect and shutdown
- Fix an infinite loop when layoutget fail with BAD_STATEID
- nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
- Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
- Fix layoutreturn/close ordering issues"
* tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS41: make close wait for layoutreturn
NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set
NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget
NFSv4: Recovery of recalled read delegations is broken
NFS: Fix an infinite loop when layoutget fail with BAD_STATEID
NFS: Do cleanup before resetting pageio read/write to mds
SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose
SUNRPC: Lock the transport layer on shutdown
nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
SUNRPC: Ensure that we wait for connections to complete before retrying
SUNRPC: drop null test before destroy functions
nfs: fix v4.2 SEEK on files over 2 gigs
SUNRPC: Fix races between socket connection and destroy code
nfs: fix pg_test page count calculation
Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount
This ended up with a larger set of fixes than wished, unfortunately.
As diffstat shows, the majority of changes are for various ASoC
drivers (Realtek, Wolfson codec drivers, etc), in addition to a couple
of HD-audio regression fixes. All these are reasonably small and
nothing to scare much.
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Merge tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This ended up with a larger set of fixes than wished, unfortunately.
As diffstat shows, the majority of changes are for various ASoC
drivers (Realtek, Wolfson codec drivers, etc), in addition to a couple
of HD-audio regression fixes. All these are reasonably small and
nothing to scare much"
* tag 'sound-4.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda - Disable power_save_node for Thinkpads
ALSA: hda/tegra - async probe for avoiding module loading deadlock
ASoC: rt5645: Prevent the pop sound in case of playback and the jack is plugging
ASoC: rt5645: Increase the delay time to remove the pop sound
ASoC: rt5645: Use the type SOC_DAPM_SINGLE_AUTODISABLE to prevent the weird sound in runtime of power up
ASoC: pxa: pxa2xx-ac97: fix dma requestor lines
MAINTAINERS: Update website and git repo for Wolfson Microelectronics
ASoC: fsl_ssi: Fix checking of dai format for AC97 mode
ASoC: wm0010: fix error path
ASoC: wm0010: fix memory leak
ASoC: wm8960: correct the max register value of mic boost pga
ASoC: wm8962: remove 64k sample rate support
ASoC: davinci-mcasp: Fix devm_kasprintf format string
ASoC: fix broken pxa SoC support
ASoC: davinci-mcasp: Set .symmetric_rates = 1 in snd_soc_dai_driver
ASoC: au1x: psc-i2s: Fix unused variable 'ret' warning
ASoC: SPEAr: Make SND_SPEAR_SOC select SND_SOC_GENERIC_DMAENGINE_PCM
ASoC: mediatek: Increase periods_min in capture
ASoC: davinci-mcasp: Revise the FIFO threshold calculation
ASoC: wm8960: correct gain value for input PGA and add microphone PGA
...
Resource management
- Revert pci_read_bridge_bases() unification (Bjorn Helgaas)
- Clear IORESOURCE_UNSET when clipping a bridge window (Bjorn Helgaas)
MSI
- Fix MSI IRQ domains for VFs on virtual buses (Alex Williamson)
Renesas R-Car host bridge driver
- Add R8A7794 support (Sergei Shtylyov)
Miscellaneous
- Fix devfn for VPD access through function 0 (Alex Williamson)
- Use function 0 VPD only for identical functions (Alex Williamson)
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Merge tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These are fixes for things we merged for v4.3 (VPD, MSI, and bridge
window management), and a new Renesas R8A7794 SoC device ID.
Details:
Resource management:
- Revert pci_read_bridge_bases() unification (Bjorn Helgaas)
- Clear IORESOURCE_UNSET when clipping a bridge window (Bjorn
Helgaas)
MSI:
- Fix MSI IRQ domains for VFs on virtual buses (Alex Williamson)
Renesas R-Car host bridge driver:
- Add R8A7794 support (Sergei Shtylyov)
Miscellaneous:
- Fix devfn for VPD access through function 0 (Alex Williamson)
- Use function 0 VPD only for identical functions (Alex Williamson)"
* tag 'pci-v4.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: rcar: Add R8A7794 support
PCI: Use function 0 VPD for identical functions, regular VPD for others
PCI: Fix devfn for VPD access through function 0
PCI/MSI: Fix MSI IRQ domains for VFs on virtual buses
PCI: Clear IORESOURCE_UNSET when clipping a bridge window
PCI: Revert "PCI: Call pci_read_bridge_bases() from core instead of arch code"
and a few PPC bug fixes too.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"AMD fixes for bugs introduced in the 4.2 merge window, and a few PPC
bug fixes too"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: disable halt_poll_ns as default for s390x
KVM: x86: fix off-by-one in reserved bits check
KVM: x86: use correct page table format to check nested page table reserved bits
KVM: svm: do not call kvm_set_cr0 from init_vmcb
KVM: x86: trap AMD MSRs for the TSeg base and mask
KVM: PPC: Book3S: Take the kvm->srcu lock in kvmppc_h_logical_ci_load/store()
KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit
KVM: PPC: Book3S HV: Fix handling of interrupted VCPUs
kvm: svm: reset mmu on VCPU reset
