Pull vfio-ccw branch to add the basic channel I/O passthrough
intrastructure based on vfio.
The focus is on supporting dasd-eckd(cu_type/dev_type = 0x3990/0x3390)
as the target device.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Although Linux does not use format-0 channel command words (CCW0)
these are a non-optional part of the platform spec, and for the sake
of platform compliance, and possibly some non-Linux guests, we have
to support CCW0.
Making the kernel execute a format 0 channel program is too much hassle
because we would need to allocate and use memory which can be addressed
by 24 bit physical addresses (because of CCW0.cda). So we implement CCW0
support by translating the channel program into an equivalent CCW1
program instead.
Based upon an orginal patch by Kai Yue Wang.
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-16-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
These cause warnings in linux-next, as the symbols have become 'bool' there:
arch/arm/configs/multi_v7_defconfig:600:warning: symbol value 'm' invalid for ROCKCHIP_INNO_HDMI
arch/arm/configs/multi_v7_defconfig:599:warning: symbol value 'm' invalid for ROCKCHIP_DW_MIPI_DSI
arch/arm/configs/multi_v7_defconfig:598:warning: symbol value 'm' invalid for ROCKCHIP_DW_HDMI
arch/arm/configs/multi_v7_defconfig:597:warning: symbol value 'm' invalid for ROCKCHIP_ANALOGIX_DP
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
There was a little conflict between the v4.11 bugfixes and the new changes for 4.12,
this merges the fixes into the 4.12 branch to avoid having to resolve it again.
* Broadcom fixes in mainline
ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
ARM: dts: BCM5301X: Fix memory start address
ARM: dts: BCM5301X: Fix UARTs on bcm953012k
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull "Devicetree changes for omaps for v4.12 merge window" from Tony Lindgren:
- Add hecc node for am35x
- Add onenand support for omap3-igep
- Add bluetooth binding for n900/n9/n950
- Configure clocks and SATA for dm81xx
- Update operating points tables for am33xx, am43xx and dra7
- Update SPI flash documentation for w25q64
- Configure SPI NOR for am335x-icev2
- Mux uart0 for am437x-gp-evm
- Add thermal zones for omap3, omap4, omap5, dra7
- Configure LEDs for am335x-baltos
- A series of droid 4 changes to configure various devices
such as keypad, regulators, gpio-keys, rtc, power button,
compass, accelerometer, touchscreen, backlight, poweroff,
tmp105, HDMI, LCD panel and LEDs, EHCI, and micro-SD
* tag 'omap-for-v4.12/dt-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (35 commits)
ARM: dts: am335x-baltos: add LED support
ARM: dts: omap4-droid4: Fix MMC1 card for detect GPIO and regulator
ARM: dts: OMAP4460: Thermal: Add slope and offset values
ARM: dts: OMAP443x: Thermal: Add slope and offset values
ARM: dts: OMAP5: Thermal: Add slope and offset values
ARM: dts: DRA7: Thermal: Add slope and offset values
ARM: dts: omap3: Add cpu_thermal zone
ARM: dts: am437x-gp-evm: Add pinmux for uart0
ARM: dts: am335x-icev2: Add SPI based NOR
Documentation: devicetree: mtd: add w25q64 to list of supported SPI flashes
ARM: dts: dra7: Add updated operating-points-v2 table for cpu
ARM: dts: am4372: Update operating-points-v2 table for cpu
ARM: dts: am335x-boneblack: Enable 1GHz OPP for cpu
ARM: dts: am33xx: Add updated operating-points-v2 table for cpu
ARM: dts: dm8168-evm: add SATA node
ARM: dts: dm8168-evm: add the external reference clock for SATA
ARM: dts: N9/N950: add bluetooth
ARM: dts: N900: Add bluetooth
ARM: dts: omap4-droid4: Configure EHCI so modems can be accessed
ARM: dts: motorola-cpcap-mapphone: add LEDs
...
Pull "Rockchip dts32 updates for 4.12 part1" from Heiko Stübner:
Contains one new board, the Tinkerboard from Asus based on the rk3288,
definitions for the mmc resets in the socs reset controller, sound
support for the Rock2, dma support for mmc controllers on the rk3188
and a led-fix for the MiQi board and and irq-fix for older Cortex-A9 socs.
* tag 'v4.12-rockchip-dts32-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188
ARM: dts: rockchip: fix PPI misconfiguration on Cortex-A9 socs
ARM: dts: rockchip: add rk322x dw-mmc resets
ARM: dts: rockchip: add rk3066/rk3188 dw-mmc resets
ARM: dts: rockchip: add rk3036 dw-mmc resets
ARM: dts: rockchip: add rk3288 dw-mmc resets
ARM: dts: rockchip: add dts for RK3288-Tinker board
dt-bindings: add rk3288-based Asus Tinker board
ARM: dts: rockchip: fix the MiQi board's LED definition
ARM: dts: rockchip: Add support for ES8388 to the Radxa Rock 2
Pull "DTS updates for the Gemini on top of the multiplatform base" from Linus Walleij:
- Add the power controller to the DTS.
- Augment the GPIO nodes to also include the Faraday
compatible.
- Add the PCI bus host and config to the Gemini device trees.
* tag 'gemini-dts-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: dts: add PCI to the Gemini device trees
ARM: dts: augment Gemini GPIO nodes
ARM: dts: add power controller to the Gemini DTS
Pull "Broadcom devicetree changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM-based SoCs Device Tree updates for
4.12, please pull the following:
- Rafal:
* adds basic support for the Linksys EA9200, Linksys EA6300 V1, Linksys
EA9500, TP-Link Archer C5 V2 which are all based on BCM470x SoCs with
a bunch of BCM43602 radios.
* updates the BCM5301X DTS and DTS include file and moves the serial
console parameters to the DTS include file since all BCM5301X that we have so
far are consistent in using the same UART. He also does the same for the
BCM53573 DTS.
* makes some updates to the Tenda AC9 platform by describing its
PCIe controllers and endpoints in order to be able to represent GPIOs attached
to the on-chip Wi-Fi module. Once done, he adds the 2Ghz LED which is connected
to one of these GPIOs.
* re-licenses the DTS files he created to the ISC license
* removes the use of the non-existend "default-off" LED trigger in the
BCM53573 and BCM5301X DTS files
- Aditya adds missing Netgear R8000 LEDS and keys for WAN status LEDS and brightness
- Jon:
* adds NAND controller Device Tree nodes to the BCM953012K reference board
* converts the BCM5301X SoC to use the recently introduced Broadcom QSPI controller
Device Tree nodes.
* fixes the GIC PPI interrupt flags that the kernel now
reports about.
* adds ARM TWD watchdog entries to the BCM5301X DTS include file
* adds I2C entries to the BCM5301X DTS include files.
* disables i2c by default in the Northstar Plus DTS include file, and
,enables it at the board level instead.
* adds USB (OHCI & EHCI) Device Tree nodes to the Northstar Plus DTS
include files.
- Steven adds the mailbox (PDC) unit and the crytographic unit (SPU) to the
Broadcom Northstar Plus SoC DTS include file. Steven also adds proper ethernet
aliases to the BCM53012HR board since some bootloaders require that for MAC address
patching.
- Eric adds the DSI and its corresponding clock nodes to the BCM283x DTS files
but leaves them disabled by default (overlays should take care of enabling it)
- Boris adds support for HDMI audio and related DMA channels to the BCM283x SoCs
- Gerd adds support for the BCM2835 specific SDHCI controller to the BCM283x SoCs
- Rob fixes the iProc msi-controller name and unit address now that DTC can produce
additional errors
* tag 'arm-soc/for-4.12/devicetree' of http://github.com/Broadcom/stblinux: (27 commits)
ARM: dts: bcm: fix msi-controller name and unit address
ARM: dts: BCM53573: Specify serial console parameters
ARM: dts: BCM5301X: Specify serial console params in dtsi files
ARM: dts: NSP: Add crypto (SPU) to dtsi
ARM: dts: NSP: Add mailbox (PDC) to NSP
ARM: dts: BCM953012HR: Add ethernet aliases
ARM: dts: BCM5301X: Add support for TP-LINK Archer C5 V2
ARM: dts: NSP: disable i2c DT entry by default
ARM: dts: NSP: Add EHCI/OHCI USB nodes to device tree
ARM: dts: BCM5301X: Add I2C support to the DT
ARM: dts: BCM5301X: Add TWD WD Support to DT
ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
ARM: dts: bcm2835: add sdhost controller to devicetree
ARM: dts: bcm283x: Add HDMI audio related properties
ARM: dts: BCM5301X: Don't use nonexistent "default-off" LED trigger
ARM: dts: BCM53573: Don't use nonexistent "default-off" LED trigger
ARM: dts: BCM5301X: Add missing Netgear R8000 LEDs and Keys
ARM: dts: BCM5301X: Relicense DTS files I created to the ISC
ARM: dts: bcm2835: Add the DSI module nodes and clocks.
ARM: dts: BCM53573: Add Tenda AC9 2 GHz LED
...
Pull "mvebu dt for 4.12 (part 1)" from Gregory CLEMENT:
- Add node lable for Armada 38x
- Add support for Synology DS116 NAS and Linksys WRT1900ACS
- Update mbus controller description on Armada 38x allowing entering in standby
- Add default trigger for sata led on various linksys boards
- Update newly added armada-xp-98dx3236
- Enable hardware buffer manager support for the devices in the
Linksys WRT AC Serie
* tag 'mvebu-dt-4.12-1' of git://git.infradead.org/linux-mvebu:
ARM: dts: mvebu: linksys: enable buffer manager support
ARM: dts: mvebu: remove unnecessary PCI range from 98dx3236
ARM: dts: mvebu: Move mv98dx3236 clock bindings
ARM: dts: Use armada-370-xp as a base for armada-xp-98dx3236
ARM: dts: armada-xp-98dx3236: combine dfx server nodes
ARM: dts: armada: Add default trigger for sata led
ARM: dts: armada-38x: Adjust mbus controller description on Armada 38x
ARM: dts: armada-385: add support for the Linksys WRT1900ACS (Shelby)
ARM: dts: armada-385-synology-ds116: add support for Synology DS116 NAS
ARM: dts: armada-38x add node labels
Pull "DaVinci DT updates for v4.12" from Sekhar Nori:
DaVinci device tree updates to enable
Video display on DA850 along with some
whitespace clean-up.
Also, enables sound and ADC support on
Lego EV3.
* tag 'davinci-for-v4.12/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: dts: da850-evm: add the output port to the vpif node
ARM: dts: da850-evm: add IO expander node on UI card
ARM: dts: da850: add vpif video display pins
ARM: dts: da850-evm: fix whitespace errors
ARM: da850-lego-ev3: Add device tree node for sound
ARM: da850-lego-ev3: Add device tree node for A/DC
The Moxa ART GPIO is a Faraday FTGPIO010. Augment the DTS node
to indicate both compatible values for the SoC and the IP part.
Also increase the register range to 0x100, it has at least 0x48
bytes of registers, and a few extra will not hurt.
Tested-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull "Rockchip dts64 updates (using arm/arm64 symlinks) for 4.12 part1" from Heiko Stübner
Rockchip dts changes based on the newly created arm/arm64 symlinks.
The core addition is the support for the rk3399-based Gru family of
ChromeOS devices, like the Kevin board which is the recently released
Samsung Chromebook Plus. Additionally the usb3 controllers are added
to rk3399 as they're used on Gru devices and even without full type-c
support they can at least drive usb2 devices already.
* tag 'v4.12-rockchip-dts64-symlinks-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: add regulator info for Kevin digitizer
arm64: dts: rockchip: describe Gru/Kevin OPPs + CPU regulators
arm64: dts: rockchip: add Gru/Kevin DTS
dt-bindings: Document rk3399 Gru/Kevin
arm64: dts: rockchip: support dwc3 USB for rk3399
Pull "Rockchip dts64 updates for 4.12 part1" from Heiko Stübner:
Contains various changes for the rk3368 (dma, i2s, disable mailbox per
default, mmc-resets) and also removes the wrongly added idle states, that
do not match the hardware's capabilities, as well as some general rk3399
pcie fixes as well as also the mmc resets.
* tag 'v4.12-rockchip-dts64-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: fix PCIe domain number for rk3399
arm64: dts: rockchip: add rk3399 dw-mmc resets
arm64: dts: rockchip: add rk3368 dw-mmc resets
arm64: dts: rockchip: disable mailbox of RK3368 SoCs per default
arm64: dts: rockchip: add i2s nodes support for RK3368 SoCs
arm64: dts: rockchip: add dmac nodes for rk3368 SoCs
arm64: dts: rockchip: remove wrongly added idle states on rk3368
arm64: dts: rockchip: sort rk3399-pcie by unit address
Pull "Broadcom devicetree-arm64 changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM64-based SoCs Device Tree updates for
4.12, please pull the following:
- Rob enables the cryptographic block on Northstar 2 (SPU) by adding the proper
Device Tree nodes
- Jon replaces all occurences of: status = "ok" with status = "okay" to better
conform to the Device Tree specification
* tag 'arm-soc/for-4.12/devicetree-arm64' of http://github.com/Broadcom/stblinux:
arm64: dts: NS2: convert "ok" to "okay"
arm64: dts: NS2: Add Broadcom SPU driver DT entry
Pull "mvebu dt64 for 4.12 (part 1)" from Gregory CLEMENT:
- Add RTC support on Armada 7k/8k
- Improve i2c support on Armada 37xx
- Add gpio expander and RTC on Armada 3720 board
- Improve USB3 support on Armada 37xx
- Add network support on Armada 7k/8k
* tag 'mvebu-dt64-4.12-1' of git://git.infradead.org/linux-mvebu:
arm64: marvell: dts: add PPv2.2 description to Armada 7K/8K
ARM64: dts: marvell: armada-3720 add RTC support
ARM64: dts: marvell: armada-3720-db: Add phy for USB3
ARM64: dts: marvell: armada-37xx: Add clock resource for USB3
ARM64: dts: marvell: armada-37xx: Fix interrupt mapping for USB3
ARM64: dts: marvell: armada-3720-db: add gpio expander
ARM64: dts: marvell: armada37xx: add address and size property for i2c cells
arm64: dts: marvell: add RTC description for Armada 7K/8K
Pull "UniPhier ARM64 SoC DT updates for v4.12" from Masahiro Yamada:
- Fix W=* build warnings
- Add pinctrl properties to eMMC nodes
- Fix resets properties of USB nodes
* tag 'uniphier-dt64-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier:
arm64: dts: uniphier: re-order reset deassertion of USB of LD11
arm64: dts: uniphier: add pinctrl property to eMMC node for LD11/LD20
arm64: dts: uniphier: move memory node below aliases node
arm64: dts: uniphier: fix no unit name warnings
Move and update device tree files as part of transition from Broadcom
Vulcan to Cavium ThunderX2.
The changes are to:
* rename dts/broadcom/vulcan.dtsi to cavium/thunder2-99xx.dtsi,
update cpu cores to be "cavium,thunder2", and update SoC to be
"cavium,thunderx2-cn9900"
* move SoC dts/broadcom/vulcan-eval.dtsi to cavium/thunder2-99xx.dtsi
and update board name string
* Update dts/broadcom/Makefile not to build vulcan dtbs
* Update dts/cavium/Makefile to build thunder2 dtbs
No changes to the dts contents except the updated "compatible" and
"model" properties.
Signed-off-by: Jayachandran C <jnair@caviumnetworks.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull "Broadcom defconfig-arm64 changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM64-based SoCs defconfig updates for
4.12, please pull the following:
- Gerd enables the BCM2835 MMC driver which yields better performance than the
default one (iProc)
* tag 'arm-soc/for-4.12/defconfig-arm64' of http://github.com/Broadcom/stblinux:
arm64: set CONFIG_MMC_BCM2835=y in defconfig
Pull "Broadcom defconfig changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM-based SoCs defconfig updates for 4.12,
please pull the following:
- Gerd enables the BCM2835 MMC driver which yields better performance than the
default one (iProc)
* tag 'arm-soc/for-4.12/defconfig' of http://github.com/Broadcom/stblinux:
arm: set CONFIG_MMC_BCM2835=y in bcm2835_defconfig and multi_v7_defconfig
ARM: bcm2835: Enable missing CMA settings for VC4 driver
Pull "Broadcom soc changes for 4.12" from Florian Fainelli:
This pull request contains Broadcom ARM-based SoC Kconfig/platform changes for
4.12, please pull the following:
- Al enables ZONE_DMA for BRCMSTB platforms since a bunch of on-chip
peripherals such as USB (OHCI and EHCI) and SDHCI cannot support physical
addresses > 32-bit. This is only required when ARM_LPAE is enabled
- Danesh enables ARCH_HAS_HOLES_MEMORYMODEL in order for the kernel to provide
a pfn_valid() implementation despite BRCMSTB enabling the SPARSEMEM model by
default.
- Florian adds support for a new 28nm generation chip: 7260 by updating the
runtime detection UART debuggin stub used for DEBUG_LL.
* tag 'arm-soc/for-4.12/soc' of http://github.com/Broadcom/stblinux:
ARM: brcmstb: Add entry for 7260
ARM: brcmstb: Enable ARCH_HAS_HOLES_MEMORYMODEL
ARM: brcmstb: Enable ZONE_DMA for non 64-bit capable peripherals
MCA bank 3 is reserved on systems pre-Fam17h, so it didn't have a name.
However, MCA bank 3 is defined on Fam17h systems and can be accessed
using legacy MSRs. Without a name we get a stack trace on Fam17h systems
when trying to register sysfs files for bank 3 on kernels that don't
recognize Scalable MCA.
Call MCA bank 3 "decode_unit" since this is what it represents on
Fam17h. This will allow kernels without SMCA support to see this bank on
Fam17h+ and prevent the stack trace. This will not affect older systems
since this bank is reserved on them, i.e. it'll be ignored.
Tested on AMD Fam15h and Fam17h systems.
WARNING: CPU: 26 PID: 1 at lib/kobject.c:210 kobject_add_internal
kobject: (ffff88085bb256c0): attempted to be registered with empty name!
...
Call Trace:
kobject_add_internal
kobject_add
kobject_create_and_add
threshold_create_device
threshold_init_device
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1490102285-3659-1-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The return code of hw_perf_event_update() is not evaluated by
its callers. Hence, simplify the function by removing the
return code.
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Make clear that the event definitions relate to the counter
facility (cf) and not to the sampling facility (sf).
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Add the event names for the IBM z13/z13s specific CPU-MF counters.
Also improve the merging of the generic and model specific events
so that their sysfs attribute definitions completely reside in
memory. Hence, flagging the generic event attribute definitions
as initdata too.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Complete the IBM z13 support and support counters from the
MT-diagnostic counter set. Note that this counter set is
available only if SMT is enabled.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The validate_event() function just checked for reserved counters
in particular CPU-MF counter sets. Because the number of counters
in counter sets vary among different hardware models, remove the
explicit check to tolerate new models.
Reserved counters are not accounted and, thus, will return zero.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Use the highest counter number that can be specified for the
ecctr (extract CPU counter) instruction for perf.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
OPAL returns OPAL_WRONG_STATE upon failing to provide sensor data due to
core sleeping/offline. Add a check in opal_get_sensor_data() for sensor
read failure with OPAL_WRONG_STATE return code and return -EIO.
Signed-off-by: Vipin K Parashar <vipin@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| CC lib/nmi_backtrace.o
| In file included from ../include/linux/kprobes.h:43:0,
| from ../lib/nmi_backtrace.c:17:
| ../arch/arc/include/asm/kprobes.h:57:13: warning: 'trap_is_kprobe' defined but not used [-Wunused-function]
| static void trap_is_kprobe(unsigned long address, struct pt_regs *regs)
| ^~~~~~~~~~~~~~
The warning started with 7d134b2ce6 ("kprobes: move kprobe declarations
to asm-generic/kprobes.h") which started including <asm/kprobes.h>
unconditionally into <linux/kprobes.h> exposing a stub function for
!CONFIG_KPROBES to rest of world. Fix that by making the stub a macro
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
As reported in STAR 9001165532, an SLC control reg read (for checking
busy state) right after SLC invalidate command may incorrectly return
NOT busy causing software to NOT spin-wait while operation is underway.
(and for some reason this only happens if L1 cache is also disabled - as
required by IOC programming model)
Suggested workaround is to do an additional Control Reg read, which
ensures the 2nd read gets the right status.
Cc: stable@vger.kernel.org #4.10
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
[vgupta: reworte changelog a bit]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Add the new hdmi phandle to exynos4.dtsi. This phandle is needed by the
s5p-cec driver to initialize the CEC notifier framework.
Tested with my Odroid U3.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
When __pa is applied to virtual address in uncached KSEG region the
result is incorrect. Fix it by checking if the original address is in
the uncached KSEG and adjusting the result. It looks better than masking
off bits because pfn_valid would correctly work with new __pa results
and it may be made working in noMMU case, once we get definition for
uncached memory view.
This is required for the dma_common_mmap and DMA debug code to work
correctly: they both indirectly use __pa with coherent DMA addresses.
In case of DMA debug the visible effect is false reports that an address
mapped for DMA is accessed by CPU.
Cc: stable@vger.kernel.org
Tested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Wire up the generic support for exposing CPU feature bits via the
modalias in /sys/device/system/cpu. This allows udev to automatically
load modules for things like crypto algorithms that are implemented
using optional instructions.
Since it is non-trivial to transparantly support both HWCAP and HWCAP2
capabilities in the cpu_feature() macro (which allows a module's hwcap
dependency and init routine to be declared using a single invocation of
module_cpu_feature_match()), support only HWCAP2 for now, which covers
the capabilities that are most likely to be useful in this manner.
Module dependencies on HWCAP will need to be declared explicitly via a
MODULE_DEVICE_TABLE(cpu, ...) declaration.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
ASoC: Fixes for v4.11
A relatively large pile of fixes for mainline, the first since the merge
window. The biggest block of changes here by volume is the sun8i-codec
set, the driver was newly added in the merge window but it was realized
that renaming some of the user visible controls was required so these
are being pushed for v4.11 to avoid the original code appearing in a
release. Otherwise it's all fairly standard bugfix stuff.
Commit 5c492c3f52 ("arm64: smp: Add function to determine if cpus are
stuck in the kernel") added a helper function to determine if die() is
supported in cpu_ops. This function assumes a cpu will have a valid
cpu_ops entry, but that may not be the case for cpu0 is spin-table or
parking protocol is used to boot secondary cpus. In that case, there
is a NULL dereference if have_cpu_die() is called by cpu0. So add a
check for a valid cpu_ops before dereferencing it.
Fixes: 5c492c3f52 ("arm64: smp: Add function to determine if cpus are stuck in the kernel")
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Pull "mvebu defconfig64 for 4.12 (part 1)" from Gregory CLEMENT:
Update arm64 defconfig by adding MVPP2 for Marvell Armada 7K/8K and
MVNETA and I2C_PXA for Armada 37xx.
* tag 'mvebu-defconfig64-4.12-1' of git://git.infradead.org/linux-mvebu:
arm64: defconfig: enable MVPP2
arm64: defconfig: enable I2C_PXA
arm64: defconfig: enable MVNETA
Pull "Amlogic: defconfig changes for v4.12" from Kevin Hilman:
- enable PWM LEDs and LEDs default-on trigger
* tag 'amlogic-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM64: defconfig: enable the leds-pwm driver and default-on trigger
