Olof Johansson [Wed, 19 Apr 2017 14:04:21 +0000 (07:04 -0700)]
Merge tag 'davinci-for-v4.12/soc-3' of git://git./linux/kernel/git/nsekhar/linux-davinci into next/soc
Add clock for CPPI 4.1 DMA engine thats
part of USB OTG subsystem on DA830 and
DA850.
This builds on top of the pull request
sent earlier:
https://www.spinics.net/lists/arm-kernel/msg573985.html
* tag 'davinci-for-v4.12/soc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: Add clock for CPPI 4.1 DMA engine
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 14:03:33 +0000 (07:03 -0700)]
Merge tag 'at91-ab-4.12-soc' of git://git./linux/kernel/git/abelloni/linux into next/soc
SoC for 4.12:
- huge PM cleanup
- Move SoC detection to its own driver
* tag 'at91-ab-4.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
ARM: at91: move SoC detection to its own driver
ARM: at91: pm: correct typo
ARM: at91: pm: Remove at91_pm_set_standby
ARM: at91: pm: Merge all at91sam9*_pm_init
ARM: at91: pm: Tie the USB clock mask to the pmc
ARM: at91: pm: Tie the memory controller type to the ramc id
ARM: at91: pm: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
ARM: at91: pm: Simplify at91rm9200_standby
ARM: at91: pm: Use struct at91_pm_data in pm_suspend.S
ARM: at91: pm: Move global variables into at91_pm_data
ARM: at91: pm: Move at91_ramc_read/write to pm.c
ARM: at91: pm: Cleanup headers
MAINTAINERS: Add memory drivers to AT91 entry
MAINTAINERS: Update AT91 entry
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
Revert "ARM: at91/dt: sama5d2: Use new compatible for ohci node"
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 14:02:50 +0000 (07:02 -0700)]
Merge tag 'hisi-armv7-soc-for-4.12' of git://github.com/hisilicon/linux-hisi into next/soc
ARM: mach-hisi: Hisilicon SoC updates for 4.12
- Fix the error return code in hip04_smp_init
* tag 'hisi-armv7-soc-for-4.12' of git://github.com/hisilicon/linux-hisi:
ARM: hisi: fix error return code in hip04_smp_init()
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 14:01:18 +0000 (07:01 -0700)]
Merge tag 'imx-soc-4.12' of git://git./linux/kernel/git/shawnguo/linux into next/soc
i.MX SoC changes for 4.12:
- A correction on mmdc_pmu_write_accesses event definition.
- Add new axi_id perf command to support MMDC filter memory usage
profiling.
- Set correct SPI chip_select in platform device registration, so that
spi-imx driver code can be improved to use chip_select directly for
harwdare setup instead of indirectly via the cs_gpio mapping array.
- Disable APIS bus supervisor protect for i.MX25, since the default
configuration doesn't work for a few peripherals accessed through
SDMA.
- Add compatible check for the secondary generation of I2SE i.MX28
Duckbill board support.
* tag 'imx-soc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: mxs: add support for I2SE Duckbill 2 boards
ARM: i.MX25: globally disable supervisor protect
ARM: imx: set correct chip_select in platform setup
ARM: imx: Add AXI address filter support for MMDC profiling
ARM: imx: Fix mmdc_pmu_write_accesses event definition
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 12:34:06 +0000 (05:34 -0700)]
Merge tag 'sunxi-core-for-4.12' of https://git./linux/kernel/git/sunxi/linux into next/soc
Allwinner core changes for 4.12
A change to our MAINTAINERS entry to reflect the new git tree, and a select
in our KConfig option to enable the device frequency scaling.
* tag 'sunxi-core-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
MAINTAINERS: Update the Allwinner sunXi entry
ARM: sunxi: Select PM_OPP
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 12:27:39 +0000 (05:27 -0700)]
Merge tag 'davinci-for-v4.12/soc-2' of git://git./linux/kernel/git/nsekhar/linux-davinci into next/soc
Add platform support needed for the
newly introduced PalmChip PATA driver.
* tag 'davinci-for-v4.12/soc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: add pata_bk3710 libata driver support
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Wed, 19 Apr 2017 12:23:33 +0000 (05:23 -0700)]
Merge tag 'stm32-soc-for-v4.12-1' of git://git./linux/kernel/git/atorgue/stm32 into next/soc
STM32 SOC updates for v4.12, round 1.
Highlights:
----------
- Create a dedicated Kconfig for STM32 machine
- Add support of STM32H743 MCU
* tag 'stm32-soc-for-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32:
ARM: stm32: Add a new SOC - STM32H743
ARM: stm32: Introduce MACH_STM32H743 flag
ARM: stm32: create dedicated kconfig for STM32 machine
Signed-off-by: Olof Johansson <olof@lixom.net>
Alexandre Bailon [Wed, 5 Apr 2017 17:17:50 +0000 (19:17 +0200)]
ARM: davinci: Add clock for CPPI 4.1 DMA engine
The CPPI 4.1 DMA in USB subsystem shares its clock with the
USB OTG, and most of the time, the clock will be enabled by
USB. But during the init of the DMA, USB is not enabled
(waiting for DMA), and then we must enable the DMA clock
before doing anything.
Add clock for the CPPI 4.1 DMA engine.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
[nsekhar@ti.com: minor commit message tweaks]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Michael Heimpold [Mon, 10 Apr 2017 09:08:55 +0000 (11:08 +0200)]
ARM: mxs: add support for I2SE Duckbill 2 boards
The Duckbill devices are small, pen-drive sized boards based on
NXP's i.MX28 SoC. While the initial variants (Duckbill series)
were equipped with a micro SD card slot only, the latest generation
(Duckbill 2 series) have an additional internal eMMC onboard.
To distinguish between both generations, a new device tree
compatible string was introduced. To get the MAC address fixup
applied, we need to check for this new string here, too.
Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Maxime Ripard [Fri, 31 Mar 2017 07:40:51 +0000 (09:40 +0200)]
MAINTAINERS: Update the Allwinner sunXi entry
Chen-Yu and I have a shared git tree to host the sunxi patches now, so
let's document it.
And while we're at it, enhance our regex and document a few directories
that have been asked for in the past.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Martin Kaiser [Mon, 3 Apr 2017 19:47:05 +0000 (21:47 +0200)]
ARM: i.MX25: globally disable supervisor protect
The problem described in commit
6befda9a272b ("ARM: i.MX53: globally
disable supervisor protect") for the i.MX53 platform applies to i.MX25
as well.
E.g. CSPI1+SDMA and SSI1+SDMA are not working with the default AIPS
configuration. Modifiy the AIPS configuration to allow access to the bus
by SDMA and peripherals.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Alexandre Belloni [Thu, 16 Feb 2017 10:31:06 +0000 (11:31 +0100)]
ARM: at91: move SoC detection to its own driver
To simplify machine init and as the soc_device struct is not used as the
parent for on-chip devices anymore, move SoC detection to its own driver.
Change in dmesg:
- before:
DMA: preallocated 256 KiB pool for atomic coherent allocations
AT91: Detected SoC family: sama5d2
AT91: Detected SoC: sama5d27, revision 0
No ATAGs?
clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
184217874325 ns
at_xdmac
f0010000.dma-controller: 16 channels, mapped at 0xe085b000
SCSI subsystem initialized
- after:
DMA: preallocated 256 KiB pool for atomic coherent allocations
No ATAGs?
clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns:
184217874325 ns
at_xdmac
f0010000.dma-controller: 16 channels, mapped at 0xe0859000
AT91: Detected SoC family: sama5d2
AT91: Detected SoC: sama5d27, revision 0
SCSI subsystem initialized
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Tue, 28 Mar 2017 10:26:18 +0000 (12:26 +0200)]
ARM: at91: pm: correct typo
Add a missing bracket at the end of Anti's email
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 22:55:10 +0000 (23:55 +0100)]
ARM: at91: pm: Remove at91_pm_set_standby
Merge at91_pm_set_standby() in at91_dt_ramc as this is the only callsite.
That moves it to the init section.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 22:43:03 +0000 (23:43 +0100)]
ARM: at91: pm: Merge all at91sam9*_pm_init
The PM initialization is now identical for all at91sam9. Merge the
functions.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 22:35:18 +0000 (23:35 +0100)]
ARM: at91: pm: Tie the USB clock mask to the pmc
The USB clocks mask (uhp_udp_mask) depends on the pmc. Tie it to the pmc id
instead of the SoC.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 21:41:50 +0000 (22:41 +0100)]
ARM: at91: pm: Tie the memory controller type to the ramc id
Instead of relying on the SoC type to select the memory controller type,
use the device tree ids as they are parsed anyway.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 21:10:34 +0000 (22:10 +0100)]
ARM: at91: pm: Workaround DDRSDRC self-refresh bug with LPDDR1 memories.
As already explained for pm_suspend.S, the DDRSDR controller fails to put
LPDDR1 memories in self-refresh. Force the controller to think it has DDR2
memories during the self-refresh period, as the DDR2 self-refresh spec is
equivalent to LPDDR1, and is correctly implemented in the controller.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Wed, 1 Feb 2017 20:32:43 +0000 (21:32 +0100)]
ARM: at91: pm: Simplify at91rm9200_standby
Since 2008, AT91_MC_SDRAMC_LPR is set to 0 at kernel initialization. There
is no use saving, changing and restoring it.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Tue, 31 Jan 2017 17:12:57 +0000 (18:12 +0100)]
ARM: at91: pm: Use struct at91_pm_data in pm_suspend.S
The number of register we can safely pass to at91_pm_suspend_in_sram is
limited. Instead, pass the address to the at91_pm_data structure.
The offsets are automatically generated to avoid hardcoding them.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Tue, 31 Jan 2017 13:15:48 +0000 (14:15 +0100)]
ARM: at91: pm: Move global variables into at91_pm_data
Instead of having separate global variables to hold IP addresses, move them
to struct at91_pm_data.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Tue, 31 Jan 2017 13:08:47 +0000 (14:08 +0100)]
ARM: at91: pm: Move at91_ramc_read/write to pm.c
Those macros are only used in pm.c, move them there so we can remove the
test on __ASSEMBLY__.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Tue, 31 Jan 2017 12:49:24 +0000 (13:49 +0100)]
ARM: at91: pm: Cleanup headers
Remove unnecessary header inclusions and reorder the remaining ones.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Mon, 27 Mar 2017 15:18:17 +0000 (17:18 +0200)]
MAINTAINERS: Add memory drivers to AT91 entry
Both atmel-ebi and atmel-sdram are maintained as part of the Atmel ARM
SoCs.
Suggested-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Alexandre Belloni [Sat, 28 Jan 2017 14:19:52 +0000 (15:19 +0100)]
MAINTAINERS: Update AT91 entry
Jean Christophe has not been active on the mailing lists for a while.
Remove him from the maintainers
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Arnd Bergmann [Fri, 31 Mar 2017 08:51:42 +0000 (10:51 +0200)]
Merge tag 'arm-soc/for-4.12/soc' of github.com/Broadcom/stblinux into next/soc
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
Arnd Bergmann [Thu, 30 Mar 2017 15:22:40 +0000 (17:22 +0200)]
Merge tag 'gemini-multiplat-2' of git://git./linux/kernel/git/linusw/linux-nomadik into next/soc
Pull "Gemini multiplatform updates" from Linus Walleij:
- Select the poweroff driver so the system can properly shut down.
This driver is merged in the power tree.
- Select the right Faraday GPIO block (we renamed it).
- Do not select SERIAL_OF_PLATFORM that just create Kconfig
warnings on us. We'll put that into the defconfig instead.
* tag 'gemini-multiplat-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: gemini: don't select SERIAL_OF_PLATFORM
ARM: gemini: select the right GPIO block
ARM: gemini: select gemini poweroff
Arnd Bergmann [Thu, 30 Mar 2017 15:15:51 +0000 (17:15 +0200)]
Merge tag 'omap-for-v4.12/soc-v2-signed' of git://git./linux/kernel/git/tmlind/linux-omap into next/soc
Pull "SoC changes for omaps for v4.12 merge window" from Tony Lindgren:
- Drop PM_SUSPEND_STANDBY
- Clean up hwmod code in preparation to eventually dynamically
allocating hwmod data based on device tree data
- Implement hwmod workaround for dra7 DCAN1 and OTG module to prevent
clockdomain from entering HW_AUTO
- Configure clockdomain and hwmod for dm81xx SATA
- Mark omap_init_rng as __init
* tag 'omap-for-v4.12/soc-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: mark omap_init_rng as __init
ARM: OMAP2+: dm81xx: Add clkdm and hwmod for SATA
ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss
ARM: DRA7: hwmod: Fix DCAN1 stuck in transition
ARM: OMAP2+ hwmod: Allow modules to disable HW_AUTO
ARM: OMAP2+: omap_hwmod: provide space for more hwmod flags
ARM: OMAP2+: Make hwmod clkdm_name const
ARM: OMAP2+: Remove unused CLOCKACT_TEST_ICLK
ARM: OMAP2+: Use list_for_each_entry for hwmod slave_ports
ARM: OMAP2+: Remove mostly unused hwmod linkspace
ARM: OMAP: PM: Drop useless checks for PM_SUSPEND_STANDBY
Arnd Bergmann [Thu, 30 Mar 2017 15:08:34 +0000 (17:08 +0200)]
Merge tag 'davinci-for-v4.12/soc' of git://git./linux/kernel/git/nsekhar/linux-davinci into next/soc
Pull "DaVinci SoC updates for v4.12" from Sekhar Nori:
v4.12 SoC updates for DaVinci include necessary pdata-quirks
to make video capture and display work on da850.
VPIF driver which supports video capture and display on
da850 is a legacy driver. It does not have DT equavalents
for all things that are used on platform data.
Attempts were made to pass data via DT[1], but linux-media
does not yet have a good way of describing subdevices in
device tree. This is work in progress. As soon as bindings
are defined and implementation is available, we can shift
to using that. For now we are stuck with using pdata.
The pull request also has some clean-up for PM, and a fix
for pdata quirks mechanism.
[1] https://marc.info/?l=devicetree&m=
147982998517384
* tag 'davinci-for-v4.12/soc' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: add pdata-quirks for da850-evm vpif display
ARM: da850-evm: add a fixed regulator for the UI board IO expander
ARM: davinci: da8xx: add pdata-quirks for VPIF capture
ARM: davinci: da8xx: add OF_DEV_AUXDATA() for vpif
ARM: davinci: board-da850-evm: add I2C ID for VPIF
ARM: davinci: allow having multiple pdata-quirks
ARM: davinci: PM: Drop useless check for PM_SUSPEND_STANDBY
Sekhar Nori [Wed, 22 Mar 2017 18:21:01 +0000 (19:21 +0100)]
ARM: davinci: add pata_bk3710 libata driver support
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
[b.zolnierkie: split from bigger patch + preserved old driver support]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Arnd Bergmann [Tue, 14 Mar 2017 21:24:48 +0000 (22:24 +0100)]
ARM: OMAP2+: mark omap_init_rng as __init
I found this section mismatch when building with an older
compiler release:
WARNING: vmlinux.o(.text+0x3051c): Section mismatch in reference from the
function omap_init_rng() to the function .init.text:omap_device_build()
Obviously this one function should be __init as well. Normally
we don't get a warning as the function gets inlined into its
caller.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[tony@atomide.com: formatted error message a bit]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Kevin Hilman [Tue, 14 Mar 2017 11:14:12 +0000 (12:14 +0100)]
ARM: OMAP2+: dm81xx: Add clkdm and hwmod for SATA
Add the SATA clockdomain (part of CM_DEFAULT) and a hwmod for the SATA
block on dm81xx.
Tested on DM8168 EVM.
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
[Bartosz: removed an unused define]
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Roger Quadros [Mon, 13 Mar 2017 11:53:16 +0000 (13:53 +0200)]
ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss
It seems that if L3_INIT clkdomain is kept in HW_AUTO while usb_otg_ss
is in use then there are random chances that the usb_otg_ss module
will fail to completely idle. i.e. IDLEST = 0x2 instead of 0x3.
Preventing L3_INIT from HW_AUTO while usb_otg_ss module is in use
fixes this issue.
We don't know yet if usb_otg_ss instances 3 and 4 are affected by this
issue or not so don't add this flag for those instances.
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Roger Quadros [Mon, 13 Mar 2017 11:53:15 +0000 (13:53 +0200)]
ARM: DRA7: hwmod: Fix DCAN1 stuck in transition
Add HWMOD_CLKDM_NOAUTO flag to DCAN1 module.
Without this DCAN1 module remains stuck in transition
after the CAN interface is brought down. This is also suggested
in Errata i893 "DCAN Initialization Sequence".
Add the HWMOD_CLKDM_NOAUTO to DCAN2 module as well
as it is mentioned in Errata i893.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Wei Yongjun [Sun, 5 Feb 2017 16:32:55 +0000 (16:32 +0000)]
ARM: hisi: fix error return code in hip04_smp_init()
Fix to return error code -ENODEV from the of_find_compatible_node()
error handling case instead of 0, as done elsewhere in this function.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Arnd Bergmann [Tue, 21 Mar 2017 20:52:56 +0000 (21:52 +0100)]
ARM: gemini: don't select SERIAL_OF_PLATFORM
We cannot select the option when SERIAL_8250 is not also set:
warning: (ARCH_GEMINI) selects SERIAL_OF_PLATFORM which has unmet direct dependencies (TTY && HAS_IOMEM && SERIAL_8250 && OF)
This removes the 'select' statement, requiring that users enable the
option manually. Alternatively, we could make it a conditional
'select SERIAL_OF_PLATFORM if SERIAL_8250' or also select a handful
of other symbols that it depends on.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Alexandre TORGUE [Mon, 30 Jan 2017 16:46:23 +0000 (17:46 +0100)]
ARM: stm32: Add a new SOC - STM32H743
The STM32H743 is a Cortex-M7 MCU running at 400MHz and containing 1MBytes
internal RAM.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Alexandre TORGUE [Mon, 30 Jan 2017 16:49:02 +0000 (17:49 +0100)]
ARM: stm32: Introduce MACH_STM32H743 flag
This patch introduces the MACH_STM32H743 to make possible to only select
STM32H743 pinctrl driver
By default, all the MACH_STM32Fxxx flags will be set with STM32 defconfig.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Alexandre TORGUE [Mon, 30 Jan 2017 16:33:13 +0000 (17:33 +0100)]
ARM: stm32: create dedicated kconfig for STM32 machine
Create a dedicated Kconfig file in mach-stm32/ and move existing stm32
configs inside.
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Roger Quadros [Fri, 17 Mar 2017 08:58:18 +0000 (10:58 +0200)]
ARM: OMAP2+ hwmod: Allow modules to disable HW_AUTO
Introduce HWMOD_CLKDM_NOAUTO flag that allows the hwmod's
clockdomain to be prevented from HW_AUTO while the hwmod is active.
This is needed to workaround some modules which don't function
correctly with HW_AUTO. e.g. DCAN on DRA7.
Signed-off-by: Roger Quadros <rogerq@ti.com>
[nsekhar@ti.com: rebased to v4.9 kernel]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Sekhar Nori [Tue, 14 Mar 2017 12:07:17 +0000 (14:07 +0200)]
ARM: OMAP2+: omap_hwmod: provide space for more hwmod flags
'flags' member of omap_hwmod structure is fast running
out of space with 16 different flags already defined.
Make flags a 32-bit entity so as to allow for more flags.
This results is a ~2.3K data section size increase with
omap2plus_defconfig on v4.11-rc2.
before:
text data bss dec hex filename
8186930 3082444 8252992 19522366 129e33e vmlinux
after:
text data bss dec hex filename
8186922 3084812 8252992 19524726 129ec76 vmlinux
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Thu, 23 Mar 2017 18:31:46 +0000 (11:31 -0700)]
Merge branch 'hwmod-cleanup' into omap-for-v4.12/soc
Linus Walleij [Sun, 12 Mar 2017 23:18:41 +0000 (00:18 +0100)]
ARM: gemini: select the right GPIO block
We want to select the GPIO_FTGPIO010 symbol for the generic
Faraday FTGPIO010 driver, not the old driver.
Cc: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Greg Ungerer [Fri, 17 Mar 2017 05:03:02 +0000 (15:03 +1000)]
ARM: imx: set correct chip_select in platform setup
Some platform based configuration setup of spi-imx SPI devices does
not set the "chip_select" to the actual hardware chip select used.
This works because the cs_gpio mapping that is associated with this
platform setup maps the chip_select offset used to the appropriate
hardware chip select. The spi-imx driver uses the chip_select as an
index into the cs_gpio array and ultimately gets the correct hardware
chip select for its hardware setup.
The motivation is to be able to eventually modify the spi-imx code to
use the "chip_select" directly for harwdare setup instead of indirectly
via the cs_gpio mapping array.
This change only affects platforms using the hardware chip select
addressing method for their SPI devices (sometimes called native chip
select). The majority of devices using the spi-imx driver use the GPIO
addressing method.
The change to use the correct "chip_select" is strait forward. But the
cs_gpio mapping arrary also needs to be modifed to match that change. In
simple terms the cs_gpio mapping should always have the hardware chip
select number at its same index offset.
There is no functional change with these patches. The three affected
platforms should work exactly as before. However I don't have any of
these platforms (or access to them) and so I can't test them. So this
patch is compile tested only.
Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Linus Walleij [Mon, 30 Jan 2017 19:13:34 +0000 (20:13 +0100)]
ARM: gemini: select gemini poweroff
It's especially annoying if the system cannot be properly
powered down so select the poweroff driver from the Kconfig.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Florian Fainelli [Thu, 9 Mar 2017 18:51:20 +0000 (10:51 -0800)]
ARM: brcmstb: Add entry for 7260
BCM7260 has the same UART base address as 7268, order the entries by
ascending chip number and alias the 7268 definition to the 7260
definition.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Danesh Petigara [Thu, 9 Mar 2017 18:51:19 +0000 (10:51 -0800)]
ARM: brcmstb: Enable ARCH_HAS_HOLES_MEMORYMODEL
Due to the brcmstb SoC's memory map, we may have holes in the memory if
we don't populate the maximum amount of memory supported by e.g: the
first memory controller which spans either the first 1GiB or first 2GiB
of memory.
We need to select ARCH_HAS_HOLES_MEMORYMODEL in order to enable
CONFIG_HAVE_ARCH_PFN_VALID on platforms that have CONFIG_SPARSEMEM
enabled.
Signed-off-by: Danesh Petigara <danesh.petigara@broadcom.com>
[florian: Detailed commit message]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Al Cooper [Thu, 9 Mar 2017 18:51:18 +0000 (10:51 -0800)]
ARM: brcmstb: Enable ZONE_DMA for non 64-bit capable peripherals
Some Host Controller hardware blocks, like the OHCI, EHCI and SDIO
controllers, have hardware blocks that are not capable of doing 64 bit
DMA. These host controllers fail on boards with >3GB of memory because
the memory above 3GB is located physically >= 0x100000000 and can only
be accessed using 64 DMA. The way Linux is currently configured for
BRCMSTB systems, the memory given to drivers for DMA through functions
like dma_alloc_coherent() comes from CMA memory and CMA memory is taken
from the top of physical memory. When these drivers get a DMA buffer
with an address >=0x100000000, they end up dropping the upper 32 bit of
the address causing the hardware to DMA to incorrect memory, typically
BMEM (custom memory carveout). This issue was discovered on a
BCM97449SSV_DDR4 system with 4GB or memory.
The fix is to enable CONFIG_ZONE_DMA. On ARM systems this makes sure
that all DMA memory is located within the first 32 bits of address
space.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tony Lindgren [Tue, 14 Mar 2017 20:13:20 +0000 (13:13 -0700)]
ARM: OMAP2+: Make hwmod clkdm_name const
This can be const, and will need to be const when we start initializing
it from clkdm data.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 14 Mar 2017 20:13:19 +0000 (13:13 -0700)]
ARM: OMAP2+: Remove unused CLOCKACT_TEST_ICLK
This is not used so let's remove it.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 14 Mar 2017 20:13:19 +0000 (13:13 -0700)]
ARM: OMAP2+: Use list_for_each_entry for hwmod slave_ports
We are just iterating over the slave_ports lists, so we can
use list_for_each_entry() no problem.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tony Lindgren [Tue, 14 Mar 2017 20:13:19 +0000 (13:13 -0700)]
ARM: OMAP2+: Remove mostly unused hwmod linkspace
We want to be able to dynamically allocate struct omap_hwmod_ocp_if and
struct omap_hwmod at device driver probe time based on .dts data.
Current setup with the linkspace using memblock_virt_alloc() makes
this tricky, so let's get rid of struct linkspace and directly set up
struct omap_hwmod_ocp_if as the master and slave lists.
As we are currently not using the master_ports either, let's remove it
too. And let's add the struct omap_hwmod_ocp_if node directly to the
slave_ports list.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Nicolas Ferre [Tue, 14 Mar 2017 08:38:04 +0000 (09:38 +0100)]
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
On some DDR controllers, compatible with the sama5d3 one,
the sequence to enter/exit/re-enter the self-refresh mode adds
more constrains than what is currently written in the at91_idle
driver. An actual access to the DDR chip is needed between exit
and re-enter of this mode which is somehow difficult to implement.
This sequence can completely hang the SoC. It is particularly
experienced on parts which embed a L2 cache if the code run
between IDLE calls fits in it...
Moreover, as the intention is to enter and exit pretty rapidly
from IDLE, the power-down mode is a good candidate.
So now we use power-down instead of self-refresh. As we can
simplify the code for sama5d3 compatible DDR controllers,
we instantiate a new sama5d3_ddr_standby() function.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: <stable@vger.kernel.org> # v4.1+
Fixes:
017b5522d5e3 ("ARM: at91: Add new binding for sama5d3-ddramc")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Olof Johansson [Mon, 13 Mar 2017 23:05:29 +0000 (16:05 -0700)]
Merge tag 'gemini-multiplat-dt' of git://git./linux/kernel/git/linusw/linux-nomadik into next/soc
This patchset:
- Converts the Gemini platform to device tree.
- Deletes all the board files.
- Fixes the prerequisities for a multiplatform boot and
switches to multiplatform.
* tag 'gemini-multiplat-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
ARM: gemini: convert to ARMv4 multiplatform
ARM: gemini: select ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR
ARM: gemini: switch to sparse IRQs
ARM: gemini: delete all boardfiles
ARM: gemini: DT for the Cortina Gemini SoC platforms
ARM: gemini: convert to MULTI_IRQ_HANDLER
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds [Sun, 12 Mar 2017 21:47:08 +0000 (14:47 -0700)]
Linux 4.11-rc2
Linus Torvalds [Sun, 12 Mar 2017 21:22:25 +0000 (14:22 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
- four patches to get the new cputime code in shape for s390
- add the new statx system call
- a few bug fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390: wire up statx system call
KVM: s390: Fix guest migration for huge guests resulting in panic
s390/ipl: always use load normal for CCW-type re-IPL
s390/timex: micro optimization for tod_to_ns
s390/cputime: provide archicture specific cputime_to_nsecs
s390/cputime: reset all accounting fields on fork
s390/cputime: remove last traces of cputime_t
s390: fix in-kernel program checks
s390/crypt: fix missing unlock in ctr_paes_crypt on error path
Linus Torvalds [Sun, 12 Mar 2017 21:18:49 +0000 (14:18 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
- a fix for the kexec/purgatory regression which was introduced in the
merge window via an innocent sparse fix. We could have reverted that
commit, but on deeper inspection it turned out that the whole
machinery is neither documented nor robust. So a proper cleanup was
done instead
- the fix for the TLB flush issue which was discovered recently
- a simple typo fix for a reboot quirk
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tlb: Fix tlb flushing when lguest clears PGE
kexec, x86/purgatory: Unbreak it and clean it up
x86/reboot/quirks: Fix typo in ASUS EeeBook X205TA reboot quirk
Linus Torvalds [Sun, 12 Mar 2017 21:11:38 +0000 (14:11 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
- a workaround for a GIC erratum
- a missing stub function for CONFIG_IRQDOMAIN=n
- fixes for a couple of type inconsistencies
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/crossbar: Fix incorrect type of register size
irqchip/gicv3-its: Add workaround for QDF2400 ITS erratum 0065
irqdomain: Add empty irq_domain_check_msi_remap
irqchip/crossbar: Fix incorrect type of local variables
Linus Walleij [Sat, 21 Jan 2017 21:43:08 +0000 (22:43 +0100)]
ARM: gemini: convert to ARMv4 multiplatform
This converts the Gemini platform to ARMv4 multiplatform, deleting
the local <mach/*> include directory, moving an idiomatic local
idling function into the .machine_init() call and getting rid of
the Makefile.boot finally.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 21 Jan 2017 20:49:27 +0000 (21:49 +0100)]
ARM: gemini: select ARM_PATCH_PHYS_VIRT and AUTO_ZRELADDR
This platform survives physical to virtual patching
without any hickups, and can use AUTO_ZRELADDR.
We still need to keep Makefile.boot but it is now empty.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 21 Jan 2017 20:35:52 +0000 (21:35 +0100)]
ARM: gemini: switch to sparse IRQs
There is no boardfiles or anything else using the fixed IRQs
anymore, switch the platform to use sparse IRQs and delete
the <mach/irqs.h> header.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 21 Jan 2017 20:30:29 +0000 (21:30 +0100)]
ARM: gemini: delete all boardfiles
Delete the Gemini boardfiles: we have corresponding, fully-featured
device trees for all these boards. Delete the referenced include
files. Delete the local config symbols, especially one for
"swapped memory", as all supported boards have swapped memory, and
would a new board be supported this is likely not the right way
to achieve it anyways. Only the Kconfig options in the central
arch/arm/Kconfig remains.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Sat, 21 Jan 2017 11:59:05 +0000 (12:59 +0100)]
ARM: gemini: DT for the Cortina Gemini SoC platforms
This adds initial and compulsory device tree support to the
Gemini ARMv4 platform.
We are selecting a bunch of "absolute minimals" for getting a working
system up with just device tree:
- We select USE_OF for natural reasons or nothing works.
- We select CLKSRC_OF and GEMINI_TIMER so we get timekeeping from
the clocksource.
- We select GPIO_GEMINI because these are used as irqchips, and
for a generic driver it is not reasonable for those to have to
select every possible irqchip in the world to work, the platform
should simply provide the available irqchips.
- We select a UART that can be exprected to work with
SERIAL_OF_PLATFORM which is the name for an 8250 OF-probed
serial port.
- We select the syscon-based reset controller: it's not fun when
"reboot" doesn't work because of Kconfig, so we just select
POWER_RESET and POWER_RESET_SYSCON.
- We perhaps a bit controversiallt select ARM_APPENDED_DTB, because
this platform is using the ancient RedBoot, and can *NOT* be
expected to upgrade its bootloaders. Appended device tree is
simply how these devices have to work with device tree.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Fri, 13 Jan 2017 22:55:54 +0000 (23:55 +0100)]
ARM: gemini: convert to MULTI_IRQ_HANDLER
In order to enable device tree boot on this machine we must first
convert it to runtime-manage its irq handler, so do this.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Daniel Borkmann [Sat, 11 Mar 2017 00:31:19 +0000 (01:31 +0100)]
x86/tlb: Fix tlb flushing when lguest clears PGE
Fengguang reported random corruptions from various locations on x86-32
after commits
d2852a224050 ("arch: add ARCH_HAS_SET_MEMORY config") and
9d876e79df6a ("bpf: fix unlocking of jited image when module ronx not set")
that uses the former. While x86-32 doesn't have a JIT like x86_64, the
bpf_prog_lock_ro() and bpf_prog_unlock_ro() got enabled due to
ARCH_HAS_SET_MEMORY, whereas Fengguang's test kernel doesn't have module
support built in and therefore never had the DEBUG_SET_MODULE_RONX setting
enabled.
After investigating the crashes further, it turned out that using
set_memory_ro() and set_memory_rw() didn't have the desired effect, for
example, setting the pages as read-only on x86-32 would still let
probe_kernel_write() succeed without error. This behavior would manifest
itself in situations where the vmalloc'ed buffer was accessed prior to
set_memory_*() such as in case of bpf_prog_alloc(). In cases where it
wasn't, the page attribute changes seemed to have taken effect, leading to
the conclusion that a TLB invalidate didn't happen. Moreover, it turned out
that this issue reproduced with qemu in "-cpu kvm64" mode, but not for
"-cpu host". When the issue occurs, change_page_attr_set_clr() did trigger
a TLB flush as expected via __flush_tlb_all() through cpa_flush_range(),
though.
There are 3 variants for issuing a TLB flush: invpcid_flush_all() (depends
on CPU feature bits X86_FEATURE_INVPCID, X86_FEATURE_PGE), cr4 based flush
(depends on X86_FEATURE_PGE), and cr3 based flush. For "-cpu host" case in
my setup, the flush used invpcid_flush_all() variant, whereas for "-cpu
kvm64", the flush was cr4 based. Switching the kvm64 case to cr3 manually
worked fine, and further investigating the cr4 one turned out that
X86_CR4_PGE bit was not set in cr4 register, meaning the
__native_flush_tlb_global_irq_disabled() wrote cr4 twice with the same
value instead of clearing X86_CR4_PGE in the first write to trigger the
flush.
It turned out that X86_CR4_PGE was cleared from cr4 during init from
lguest_arch_host_init() via adjust_pge(). The X86_FEATURE_PGE bit is also
cleared from there due to concerns of using PGE in guest kernel that can
lead to hard to trace bugs (see
bff672e630a0 ("lguest: documentation V:
Host") in init()). The CPU feature bits are cleared in dynamic
boot_cpu_data, but they never propagated to __flush_tlb_all() as it uses
static_cpu_has() instead of boot_cpu_has() for testing which variant of TLB
flushing to use, meaning they still used the old setting of the host
kernel.
Clearing via setup_clear_cpu_cap(X86_FEATURE_PGE) so this would propagate
to static_cpu_has() checks is too late at this point as sections have been
patched already, so for now, it seems reasonable to switch back to
boot_cpu_has(X86_FEATURE_PGE) as it was prior to commit
c109bf95992b
("x86/cpufeature: Remove cpu_has_pge"). This lets the TLB flush trigger via
cr3 as originally intended, properly makes the new page attributes visible
and thus fixes the crashes seen by Fengguang.
Fixes:
c109bf95992b ("x86/cpufeature: Remove cpu_has_pge")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: bp@suse.de
Cc: Kees Cook <keescook@chromium.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: lkp@01.org
Cc: Laura Abbott <labbott@redhat.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernrl.org/r/20170301125426.l4nf65rx4wahohyl@wfg-t540p.sh.intel.com
Link: http://lkml.kernel.org/r/25c41ad9eca164be4db9ad84f768965b7eb19d9e.1489191673.git.daniel@iogearbox.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Sat, 11 Mar 2017 22:24:58 +0000 (14:24 -0800)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM updates from Marc Zyngier:
- vgic updates:
- Honour disabling the ITS
- Don't deadlock when deactivating own interrupts via MMIO
- Correctly expose the lact of IRQ/FIQ bypass on GICv3
- I/O virtualization:
- Make KVM_CAP_NR_MEMSLOTS big enough for large guests with many
PCIe devices
- General bug fixes:
- Gracefully handle exception generated with syndroms that the host
doesn't understand
- Properly invalidate TLBs on VHE systems
x86:
- improvements in emulation of VMCLEAR, VMX MSR bitmaps, and VCPU
reset
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: do not warn when MSR bitmap address is not backed
KVM: arm64: Increase number of user memslots to 512
KVM: arm/arm64: Remove KVM_PRIVATE_MEM_SLOTS definition that are unused
KVM: arm/arm64: Enable KVM_CAP_NR_MEMSLOTS on arm/arm64
KVM: Add documentation for KVM_CAP_NR_MEMSLOTS
KVM: arm/arm64: VGIC: Fix command handling while ITS being disabled
arm64: KVM: Survive unknown traps from guests
arm: KVM: Survive unknown traps from guests
KVM: arm/arm64: Let vcpu thread modify its own active state
KVM: nVMX: reset nested_run_pending if the vCPU is going to be reset
kvm: nVMX: VMCLEAR should not cause the vCPU to shut down
KVM: arm/arm64: vgic-v3: Don't pretend to support IRQ/FIQ bypass
arm64: KVM: VHE: Clear HCR_TGE when invalidating guest TLBs
Linus Torvalds [Sat, 11 Mar 2017 22:16:50 +0000 (14:16 -0800)]
Merge tag 'extable-fix' of git://git./linux/kernel/git/paulg/linux
Pull extable.h fix from Paul Gortmaker:
"Fixup for arch/score after extable.h introduction.
It seems that Guenter is the only one on the planet doing builds for
arch/score -- we don't have compile coverage for it in linux-next or
in the kbuild-bot either. Guenter couldn't even recall where he got
his toolchain, but was kind enough to share it with me so I could
validate this change and also add arch/score to my build coverage.
I sat on this a bit in case there was any other fallout in other arch
dirs, but since this still seems to be the only one, I might as well
send it on its way"
* tag 'extable-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
score: Fix implicit includes now failing build after extable change
Linus Torvalds [Sat, 11 Mar 2017 17:08:47 +0000 (09:08 -0800)]
Merge tag 'random_for_linus' of git://git./linux/kernel/git/tytso/random
Pull random updates from Ted Ts'o:
"Change get_random_{int,log} to use the CRNG used by /dev/urandom and
getrandom(2). It's faster and arguably more secure than cut-down MD5
that we had been using.
Also do some code cleanup"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: move random_min_urandom_seed into CONFIG_SYSCTL ifdef block
random: convert get_random_int/long into get_random_u32/u64
random: use chacha20 for get_random_int/long
random: fix comment for unused random_min_urandom_seed
random: remove variable limit
random: remove stale urandom_init_wait
random: remove stale maybe_reseed_primary_crng
Guenter Roeck [Wed, 22 Feb 2017 19:07:57 +0000 (11:07 -0800)]
score: Fix implicit includes now failing build after extable change
After changing from module.h to extable.h, score builds fail with:
arch/score/kernel/traps.c: In function 'do_ri':
arch/score/kernel/traps.c:248:4: error: implicit declaration of function 'user_disable_single_step'
arch/score/mm/extable.c: In function 'fixup_exception':
arch/score/mm/extable.c:32:38: error: dereferencing pointer to incomplete type
arch/score/mm/extable.c:34:24: error: dereferencing pointer to incomplete type
because extable.h doesn't drag in the same amount of headers as the
module.h did. Add in the headers which were implicitly expected.
Fixes:
90858794c960 ("module.h: remove extable.h include now users have migrated")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
[PG: tweak commit log; refresh for sched header refactoring.]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Linus Torvalds [Sat, 11 Mar 2017 08:20:12 +0000 (00:20 -0800)]
Merge tag 'tty-4.11-rc2' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial fixes frpm Greg KH:
"Here are two bugfixes for tty stuff for 4.11-rc2.
One of them resolves the pretty bad bug in the n_hdlc code that
Alexander Popov found and fixed and has been reported everywhere. The
other just fixes a samsung serial driver issue when DMA fails on some
systems.
Both have been in linux-next with no reported issues"
* tag 'tty-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: samsung: Continue to work if DMA request fails
tty: n_hdlc: get rid of racy n_hdlc.tbuf
Linus Torvalds [Sat, 11 Mar 2017 08:13:28 +0000 (00:13 -0800)]
Merge tag 'staging-4.11-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are two small build warning fixes for some staging drivers that
Arnd has found on his valiant quest to get the kernel to build
properly with no warnings.
Both of these have been in linux-next this week and resolve the
reported issues"
* tag 'staging-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: octeon: remove unused variable
staging/vc04_services: add CONFIG_OF dependency
Linus Torvalds [Sat, 11 Mar 2017 08:08:39 +0000 (00:08 -0800)]
Merge tag 'usb-4.11-rc2' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here is a number of different USB fixes for 4.11-rc2.
Seems like there were a lot of unresolved issues that people have been
finding for this subsystem, and a bunch of good security auditing
happening as well from Johan Hovold. There's the usual batch of gadget
driver fixes and xhci issues resolved as well.
All of these have been in linux-next with no reported issues"
* tag 'usb-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (35 commits)
usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers
usb: host: xhci-dbg: HCIVERSION should be a binary number
usb: xhci: remove dummy extra_priv_size for size of xhci_hcd struct
usb: xhci-mtk: check hcc_params after adding primary hcd
USB: serial: digi_acceleport: fix OOB-event processing
MAINTAINERS: usb251xb: remove reference inexistent file
doc: dt-bindings: usb251xb: mark reg as required
usb: usb251xb: dt: add unit suffix to oc-delay and power-on-time
usb: usb251xb: remove max_{power,current}_{sp,bp} properties
usb-storage: Add ignore-residue quirk for Initio INIC-3619
USB: iowarrior: fix NULL-deref in write
USB: iowarrior: fix NULL-deref at probe
usb: phy: isp1301: Add OF device ID table
usb: ohci-at91: Do not drop unhandled USB suspend control requests
USB: serial: safe_serial: fix information leak in completion handler
USB: serial: io_ti: fix information leak in completion handler
USB: serial: omninet: drop open callback
USB: serial: omninet: fix reference leaks at open
USB: serial: io_ti: fix NULL-deref in interrupt callback
usb: dwc3: gadget: make to increment req->remaining in all cases
...
Linus Torvalds [Sat, 11 Mar 2017 08:06:18 +0000 (00:06 -0800)]
Merge tag 'pinctrl-v4.11-2' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"Two smaller pin control fixes for the v4.11 series:
- Add a get_direction() function to the qcom driver
- Fix two pin names in the uniphier driver"
* tag 'pinctrl-v4.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: uniphier: change pin names of aio/xirq for LD11
pinctrl: qcom: add get_direction function
Thomas Gleixner [Fri, 10 Mar 2017 12:17:18 +0000 (13:17 +0100)]
kexec, x86/purgatory: Unbreak it and clean it up
The purgatory code defines global variables which are referenced via a
symbol lookup in the kexec code (core and arch).
A recent commit addressing sparse warnings made these static and thereby
broke kexec_file.
Why did this happen? Simply because the whole machinery is undocumented and
lacks any form of forward declarations. The variable names are unspecific
and lack a prefix, so adding forward declarations creates shadow variables
in the core code. Aside of that the code relies on magic constants and
duplicate struct definitions with no way to ensure that these things stay
in sync. The section placement of the purgatory variables happened by
chance and not by design.
Unbreak kexec and cleanup the mess:
- Add proper forward declarations and document the usage
- Use common struct definition
- Use the proper common defines instead of magic constants
- Add a purgatory_ prefix to have a proper name space
- Use ARRAY_SIZE() instead of a homebrewn reimplementation
- Add proper sections to the purgatory variables [ From Mike ]
Fixes:
72042a8c7b01 ("x86/purgatory: Make functions and variables static")
Reported-by: Mike Galbraith <<efault@gmx.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Nicholas Mc Guire <der.herr@hofr.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: "Tobin C. Harding" <me@tobin.cc>
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1703101315140.3681@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Fri, 10 Mar 2017 19:05:47 +0000 (11:05 -0800)]
Merge tag 'ceph-for-4.11-rc2' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
- a fix for the recently discovered misdirected requests bug present in
jewel and later on the server side and all stable kernels
- a fixup for -rc1 CRUSH changes
- two usability enhancements: osd_request_timeout option and
supported_features bus attribute.
* tag 'ceph-for-4.11-rc2' of git://github.com/ceph/ceph-client:
libceph: osd_request_timeout option
rbd: supported_features bus attribute
libceph: don't set weight to IN when OSD is destroyed
libceph: fix crush_decode() for older maps
Linus Torvalds [Fri, 10 Mar 2017 17:56:16 +0000 (09:56 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Here are some driver bugfixes from I2C.
Unusual this time are the two reverts. One because I accidently picked
a patch from the list which I should have pulled from my co-maintainer
instead ("missing of_node_put"). And one which I wrongly assumed to be
an easy fix but it turned out already that it needs more iterations
("copy device properties")"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: copy device properties when using i2c_register_board_info()"
Revert "i2c: add missing of_node_put in i2c_mux_del_adapters"
i2c: exynos5: Avoid transaction timeouts due TRANSFER_DONE_AUTO not set
i2c: designware: add reset interface
i2c: meson: fix wrong variable usage in meson_i2c_put_data
i2c: copy device properties when using i2c_register_board_info()
i2c: m65xx: drop superfluous quirk structure
i2c: brcmstb: Fix START and STOP conditions
i2c: add missing of_node_put in i2c_mux_del_adapters
i2c: riic: fix restart condition
i2c: add missing of_node_put in i2c_mux_del_adapters
Linus Torvalds [Fri, 10 Mar 2017 17:53:00 +0000 (09:53 -0800)]
Merge tag 'drm-fixes-for-4.11-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Intel, amd and mxsfb fixes.
These are the drm fixes I've collected for rc2. Mostly i915 GVT only
fixes, along with a single EDID fix, some mxsfb fixes and a few minor
amd fixes"
* tag 'drm-fixes-for-4.11-rc2' of git://people.freedesktop.org/~airlied/linux: (38 commits)
drm: mxsfb: Implement drm_panel handling
drm: mxsfb_crtc: Fix the framebuffer misplacement
drm: mxsfb: Fix crash when provided invalid DT bindings
drm: mxsfb: fix pixel clock polarity
drm: mxsfb: use bus_format to determine LCD bus width
drm/amdgpu: bump driver version for some new features
drm/amdgpu: validate paramaters in the gem ioctl
drm/amd/amdgpu: fix console deadlock if late init failed
drm/i915/gvt: change some gvt_err to gvt_dbg_cmd
drm/i915/gvt: protect RO and Rsvd bits of virtual vgpu configuration space
drm/i915/gvt: handle workload lifecycle properly
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
drm/i915/gvt: fix an error for F_RO flag
drm/i915/gvt: use pfn_valid for better checking
drm/i915/gvt: set SFUSE_STRAP properly for vitual monitor detection
drm/i915/gvt: fix an error for one register
drm/i915/gvt: add more registers into handlers list
drm/i915/gvt: have more registers with F_CMD_ACCESS flags set
drm/i915/gvt: add some new MMIOs to cmd_access white list
drm/i915/gvt: fix pcode mailbox write emulation of BDW
...
Linus Torvalds [Fri, 10 Mar 2017 16:59:07 +0000 (08:59 -0800)]
Merge branch 'prep-for-5level'
Merge 5-level page table prep from Kirill Shutemov:
"Here's relatively low-risk part of 5-level paging patchset. Merging it
now will make x86 5-level paging enabling in v4.12 easier.
The first patch is actually x86-specific: detect 5-level paging
support. It boils down to single define.
The rest of patchset converts Linux MMU abstraction from 4- to 5-level
paging.
Enabling of new abstraction in most cases requires adding single line
of code in arch-specific code. The rest is taken care by asm-generic/.
Changes to mm/ code are mostly mechanical: add support for new page
table level -- p4d_t -- where we deal with pud_t now.
v2:
- fix build on microblaze (Michal);
- comment for __ARCH_HAS_5LEVEL_HACK in kasan_populate_zero_shadow();
- acks from Michal"
* emailed patches from Kirill A Shutemov <kirill.shutemov@linux.intel.com>:
mm: introduce __p4d_alloc()
mm: convert generic code to 5-level paging
asm-generic: introduce <asm-generic/pgtable-nop4d.h>
arch, mm: convert all architectures to use 5level-fixup.h
asm-generic: introduce __ARCH_USE_5LEVEL_HACK
asm-generic: introduce 5level-fixup.h
x86/cpufeature: Add 5-level paging detection
Linus Torvalds [Fri, 10 Mar 2017 16:34:42 +0000 (08:34 -0800)]
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
"26 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits)
userfaultfd: remove wrong comment from userfaultfd_ctx_get()
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
sh: cayman: IDE support fix
kasan: fix races in quarantine_remove_cache()
kasan: resched in quarantine_remove_cache()
mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
thp: fix another corner case of munlock() vs. THPs
rmap: fix NULL-pointer dereference on THP munlocking
mm/memblock.c: fix memblock_next_valid_pfn()
userfaultfd: selftest: vm: allow to build in vm/ directory
userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED
userfaultfd: non-cooperative: fix fork fctx->new memleak
mm/cgroup: avoid panic when init with low memory
drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h
mm/vmstats: add thp_split_pud event for clarity
include/linux/fs.h: fix unsigned enum warning with gcc-4.2
userfaultfd: non-cooperative: release all ctx in dup_userfaultfd_complete
userfaultfd: non-cooperative: robustness check
userfaultfd: non-cooperative: rollback userfaultfd_exit
x86, mm: unify exit paths in gup_pte_range()
...
Matjaz Hegedic [Thu, 9 Mar 2017 13:00:17 +0000 (14:00 +0100)]
x86/reboot/quirks: Fix typo in ASUS EeeBook X205TA reboot quirk
The reboot quirk for ASUS EeeBook X205TA contains a typo in
DMI_PRODUCT_NAME, improperly referring to X205TAW instead of
X205TA, which prevents the quirk from being triggered. The
model X205TAW already has a reboot quirk of its own.
This fix simply removes the inappropriate final letter W.
Fixes:
90b28ded88dd ("x86/reboot/quirks: Add ASUS EeeBook X205TA reboot quirk")
Signed-off-by: Matjaz Hegedic <matjaz.hegedic@gmail.com>
Link: http://lkml.kernel.org/r/1489064417-7445-1-git-send-email-matjaz.hegedic@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Fri, 10 Mar 2017 02:11:28 +0000 (18:11 -0800)]
Merge tag 'xfs-4.11-fixes-1' of git://git./fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are some bug fixes for -rc2 to clean up the copy on write
handling and to remove a cause of hangs.
- Fix various iomap bugs
- Fix overly aggressive CoW preallocation garbage collection
- Fixes to CoW endio error handling
- Fix some incorrect geometry calculations
- Remove a potential system hang in bulkstat
- Try to allocate blocks more aggressively to reduce ENOSPC errors"
* tag 'xfs-4.11-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: try any AG when allocating the first btree block when reflinking
xfs: use iomap new flag for newly allocated delalloc blocks
xfs: remove kmem_zalloc_greedy
xfs: Use xfs_icluster_size_fsb() to calculate inode alignment mask
xfs: fix and streamline error handling in xfs_end_io
xfs: only reclaim unwritten COW extents periodically
iomap: invalidate page caches should be after iomap_dio_complete() in direct write
Linus Torvalds [Fri, 10 Mar 2017 02:05:41 +0000 (18:05 -0800)]
Merge tag 'gcc-plugins-v4.11-rc2' of git://git./linux/kernel/git/kees/linux
Pull gcc-plugins fix from Kees Cook:
"Fixes a typo in sancov plugin, exposed in earlier compiler versions"
* tag 'gcc-plugins-v4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
gcc-plugins: fix sancov_plugin for gcc-5
Fabio Estevam [Wed, 1 Feb 2017 17:19:47 +0000 (15:19 -0200)]
drm: mxsfb: Implement drm_panel handling
Currently when the 'power-supply' regulator is passed via device tree
it does not actually work since drm_panel_prepare()/drm_panel_enable()
are never called.
Quoting Thierry Reding: "It should really call drm_panel_prepare() and
drm_panel_enable() while switching on the display pipeline and
drm_panel_disable(), followed by drm_panel_unprepare() while switching
off the display pipeline."
So do as suggested, so that the 'power-supply' regulator can be functional.
Reported-by: Breno Lima <breno.lima@nxp.com>
Suggested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Fabio Estevam [Thu, 2 Feb 2017 21:26:38 +0000 (19:26 -0200)]
drm: mxsfb_crtc: Fix the framebuffer misplacement
Currently the framebuffer content is displayed with incorrect offsets
in both the vertical and horizontal directions.
The fbdev version of the driver does not show this problem. Breno Lima
dumped the eLCDIF controller registers on both the drm and fbdev drivers
and noticed that the VDCTRL3 register is configured incorrectly in the
drm driver.
The fbdev driver calculates the vertical and horizontal wait counts
of the VDCTRL3 register by doing: back porch + sync length.
Looking at the horizontal and vertical timing diagram from
include/drm/drm_modes.h this value corresponds to:
crtc_[hv]total - crtc_[hv]sync_start
So fix the VDCTRL3 register setting accordingly so that the eLCDIF
controller can properly show the framebuffer content in the correct
position.
Reported-by: Breno Lima <breno.lima@nxp.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Breno Lima <breno.lima@nxp.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Marek Vasut [Sat, 28 Jan 2017 17:01:57 +0000 (18:01 +0100)]
drm: mxsfb: Fix crash when provided invalid DT bindings
The mxsfb driver will crash if the mxsfb DT node has a subnode,
but the content of the subnode is not of-graph binding with an
endpoint linking to panel. The crash was triggered by providing
old-style panel bindings to the mxsfb driver instead of the new
of-graph ones.
The problem happens in mxsfb_create_output(), which is invoked
from mxsfb_load(). The mxsfb_create_output() iterates over all
mxsfb DT subnode endpoints and tries to bind a panel on each
endpoint. If there is any problem binding the panel, that is,
mxsfb->panel == NULL, this function will return an error code,
otherwise success 0 is returned.
If the subnodes do not specify of-graph binding with an endpoint,
the iteration over endpoints in mxsfb_create_output() will have
zero cycles and the function will immediatelly return 0, but the
mxsfb->panel will remain NULL. This is propagated back into the
mxsfb_load(), which does not detect any problem and expects that
the mxsfb->panel is valid, thus calls mxsfb_panel_attach(). But
since mxsfb->panel == NULL, mxsfb_panel_attach() is called with
first argument NULL and this crashes the kernel.
This patch fixes the problem by explicitly checking for valid
mxsfb->panel at the end of the iteration in mxsfb_create_output().
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Breno Matheus Lima <brenomatheus@gmail.com>
Tested-by: Breno Lima <breno.lima@nxp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Stefan Agner [Wed, 14 Dec 2016 20:48:09 +0000 (12:48 -0800)]
drm: mxsfb: fix pixel clock polarity
The DRM subsystem specifies the pixel clock polarity from a
controllers perspective: DRM_BUS_FLAG_PIXDATA_NEGEDGE means
the controller drives the data on pixel clocks falling edge.
That is the controllers DOTCLK_POL=0 (Default is data launched
at negative edge).
Also change the data enable logic to be high active by default
and only change if explicitly requested via bus_flags. With
that defaults are:
- Data enable: high active
- Pixel clock polarity: controller drives data on negative edge
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Stefan Agner [Thu, 15 Dec 2016 01:28:41 +0000 (17:28 -0800)]
drm: mxsfb: use bus_format to determine LCD bus width
The LCD bus width does not need to align with the pixel format. The
LCDIF controller automatically converts between pixel formats and
bus width by padding or dropping LSBs.
The DRM subsystem has the notion of bus_format which allows to
determine what bus_formats are supported by the display. Choose the
first available or fallback to 24 bit if none are available.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 10 Mar 2017 01:07:34 +0000 (11:07 +1000)]
Merge branch 'drm-fixes-4.11' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
* 'drm-fixes-4.11' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: bump driver version for some new features
drm/amdgpu: validate paramaters in the gem ioctl
drm/amd/amdgpu: fix console deadlock if late init failed
Dave Airlie [Fri, 10 Mar 2017 01:07:13 +0000 (11:07 +1000)]
Merge tag 'drm-intel-fixes-2017-03-09' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
flushing out gvt-g fixes
* tag 'drm-intel-fixes-2017-03-09' of git://anongit.freedesktop.org/git/drm-intel: (29 commits)
drm/i915/gvt: change some gvt_err to gvt_dbg_cmd
drm/i915/gvt: protect RO and Rsvd bits of virtual vgpu configuration space
drm/i915/gvt: handle workload lifecycle properly
drm/i915/gvt: fix an error for F_RO flag
drm/i915/gvt: use pfn_valid for better checking
drm/i915/gvt: set SFUSE_STRAP properly for vitual monitor detection
drm/i915/gvt: fix an error for one register
drm/i915/gvt: add more registers into handlers list
drm/i915/gvt: have more registers with F_CMD_ACCESS flags set
drm/i915/gvt: add some new MMIOs to cmd_access white list
drm/i915/gvt: fix pcode mailbox write emulation of BDW
drm/i915/gvt: add resolution definition for vGPU type
drm/i915/gvt: Add more edid definition support
drm/i915/gvt: adjust to fixed vGPU types
drm/i915/gvt: remove unnecessary error msg from gtt write
drm/i915/gvt: refine pcode write emulation
drm/i915/gvt: clear the vGPU reset logic
drm/i915/gvt: decrease priority of output msg for untracked mmio
drm/i915/gvt: set default value to 0 for unhandled mmio regs
drm/i915/gvt: add cmd_access to GEN7_HALF_SLICE_CHICKEN1
...
Dave Airlie [Fri, 10 Mar 2017 01:06:46 +0000 (11:06 +1000)]
Merge tag 'drm-misc-fixes-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Just 1 8bpc quirk from Ville, cc: stable
* tag 'drm-misc-fixes-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc:
drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058
David Hildenbrand [Fri, 10 Mar 2017 00:17:40 +0000 (16:17 -0800)]
userfaultfd: remove wrong comment from userfaultfd_ctx_get()
It's a void function, so there is no return value;
Link: http://lkml.kernel.org/r/20170309150817.7510-1-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
OGAWA Hirofumi [Fri, 10 Mar 2017 00:17:37 +0000 (16:17 -0800)]
fat: fix using uninitialized fields of fat_inode/fsinfo_inode
Recently fallocate patch was merged and it uses
MSDOS_I(inode)->mmu_private at fat_evict_inode(). However,
fat_inode/fsinfo_inode that was introduced in past didn't initialize
MSDOS_I(inode) properly.
With those combinations, it became the cause of accessing random entry
in FAT area.
Link: http://lkml.kernel.org/r/87pohrj4i8.fsf@mail.parknet.co.jp
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reported-by: Moreno Bartalucci <moreno.bartalucci@tecnorama.it>
Tested-by: Moreno Bartalucci <moreno.bartalucci@tecnorama.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bartlomiej Zolnierkiewicz [Fri, 10 Mar 2017 00:17:34 +0000 (16:17 -0800)]
sh: cayman: IDE support fix
Remove incorrect CONFIG_IDE ifdef (CONFIG_IDE config option is for
internal drivers/ide/ use) and make IDE hardware interface always
initialized (not only when IDE subsystem is built-in).
This patch allows Cayman board to work with modular IDE subsystem
support and removes the requirement of having the whole core IDE
subsystem built-in when using libata PATA support.
Link: http://lkml.kernel.org/r/1990884.yFoE6lSB9G@amdc3058
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dmitry Vyukov [Fri, 10 Mar 2017 00:17:32 +0000 (16:17 -0800)]
kasan: fix races in quarantine_remove_cache()
quarantine_remove_cache() frees all pending objects that belong to the
cache, before we destroy the cache itself. However there are currently
two possibilities how it can fail to do so.
First, another thread can hold some of the objects from the cache in
temp list in quarantine_put(). quarantine_put() has a windows of
enabled interrupts, and on_each_cpu() in quarantine_remove_cache() can
finish right in that window. These objects will be later freed into the
destroyed cache.
Then, quarantine_reduce() has the same problem. It grabs a batch of
objects from the global quarantine, then unlocks quarantine_lock and
then frees the batch. quarantine_remove_cache() can finish while some
objects from the cache are still in the local to_free list in
quarantine_reduce().
Fix the race with quarantine_put() by disabling interrupts for the whole
duration of quarantine_put(). In combination with on_each_cpu() in
quarantine_remove_cache() it ensures that quarantine_remove_cache()
either sees the objects in the per-cpu list or in the global list.
Fix the race with quarantine_reduce() by protecting quarantine_reduce()
with srcu critical section and then doing synchronize_srcu() at the end
of quarantine_remove_cache().
I've done some assessment of how good synchronize_srcu() works in this
case. And on a 4 CPU VM I see that it blocks waiting for pending read
critical sections in about 2-3% of cases. Which looks good to me.
I suspect that these races are the root cause of some GPFs that I
episodically hit. Previously I did not have any explanation for them.
BUG: unable to handle kernel NULL pointer dereference at
00000000000000c8
IP: qlist_free_all+0x2e/0xc0 mm/kasan/quarantine.c:155
PGD
6aeea067
PUD
60ed7067
PMD 0
Oops: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
(ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 13667 Comm: syz-executor2 Not tainted 4.10.0+ #60
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task:
ffff88005f948040 task.stack:
ffff880069818000
RIP: 0010:qlist_free_all+0x2e/0xc0 mm/kasan/quarantine.c:155
RSP: 0018:
ffff88006981f298 EFLAGS:
00010246
RAX:
ffffea0000ffff00 RBX:
0000000000000000 RCX:
ffffea0000ffff1f
RDX:
0000000000000000 RSI:
ffff88003fffc3e0 RDI:
0000000000000000
RBP:
ffff88006981f2c0 R08:
ffff88002fed7bd8 R09:
00000001001f000d
R10:
00000000001f000d R11:
ffff88006981f000 R12:
ffff88003fffc3e0
R13:
ffff88006981f2d0 R14:
ffffffff81877fae R15:
0000000080000000
FS:
00007fb911a2d700(0000) GS:
ffff88003ec00000(0000) knlGS:
0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
CR2:
00000000000000c8 CR3:
0000000060ed6000 CR4:
00000000000006f0
Call Trace:
quarantine_reduce+0x10e/0x120 mm/kasan/quarantine.c:239
kasan_kmalloc+0xca/0xe0 mm/kasan/kasan.c:590
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:544
slab_post_alloc_hook mm/slab.h:456 [inline]
slab_alloc_node mm/slub.c:2718 [inline]
kmem_cache_alloc_node+0x1d3/0x280 mm/slub.c:2754
__alloc_skb+0x10f/0x770 net/core/skbuff.c:219
alloc_skb include/linux/skbuff.h:932 [inline]
_sctp_make_chunk+0x3b/0x260 net/sctp/sm_make_chunk.c:1388
sctp_make_data net/sctp/sm_make_chunk.c:1420 [inline]
sctp_make_datafrag_empty+0x208/0x360 net/sctp/sm_make_chunk.c:746
sctp_datamsg_from_user+0x7e8/0x11d0 net/sctp/chunk.c:266
sctp_sendmsg+0x2611/0x3970 net/sctp/socket.c:1962
inet_sendmsg+0x164/0x5b0 net/ipv4/af_inet.c:761
sock_sendmsg_nosec net/socket.c:633 [inline]
sock_sendmsg+0xca/0x110 net/socket.c:643
SYSC_sendto+0x660/0x810 net/socket.c:1685
SyS_sendto+0x40/0x50 net/socket.c:1653
I am not sure about backporting. The bug is quite hard to trigger, I've
seen it few times during our massive continuous testing (however, it
could be cause of some other episodic stray crashes as it leads to
memory corruption...). If it is triggered, the consequences are very
bad -- almost definite bad memory corruption. The fix is non trivial
and has chances of introducing new bugs. I am also not sure how
actively people use KASAN on older releases.
[dvyukov@google.com: - sorted includes[
Link: http://lkml.kernel.org/r/20170309094028.51088-1-dvyukov@google.com
Link: http://lkml.kernel.org/r/20170308151532.5070-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Greg Thelen <gthelen@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Dmitry Vyukov [Fri, 10 Mar 2017 00:17:28 +0000 (16:17 -0800)]
kasan: resched in quarantine_remove_cache()
We see reported stalls/lockups in quarantine_remove_cache() on machines
with large amounts of RAM. quarantine_remove_cache() needs to scan
whole quarantine in order to take out all objects belonging to the
cache. Quarantine is currently 1/32-th of RAM, e.g. on a machine with
256GB of memory that will be 8GB. Moreover quarantine scanning is a
walk over uncached linked list, which is slow.
Add cond_resched() after scanning of each non-empty batch of objects.
Batches are specifically kept of reasonable size for quarantine_put().
On a machine with 256GB of RAM we should have ~512 non-empty batches,
each with 16MB of objects.
Link: http://lkml.kernel.org/r/20170308154239.25440-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tahsin Erdogan [Fri, 10 Mar 2017 00:17:26 +0000 (16:17 -0800)]
mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
mem_cgroup_free() indirectly calls wb_domain_exit() which is not
prepared to deal with a struct wb_domain object that hasn't executed
wb_domain_init(). For instance, the following warning message is
printed by lockdep if alloc_percpu() fails in mem_cgroup_alloc():
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 1950 Comm: mkdir Not tainted 4.10.0+ #151
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
dump_stack+0x67/0x99
register_lock_class+0x36d/0x540
__lock_acquire+0x7f/0x1a30
lock_acquire+0xcc/0x200
del_timer_sync+0x3c/0xc0
wb_domain_exit+0x14/0x20
mem_cgroup_free+0x14/0x40
mem_cgroup_css_alloc+0x3f9/0x620
cgroup_apply_control_enable+0x190/0x390
cgroup_mkdir+0x290/0x3d0
kernfs_iop_mkdir+0x58/0x80
vfs_mkdir+0x10e/0x1a0
SyS_mkdirat+0xa8/0xd0
SyS_mkdir+0x14/0x20
entry_SYSCALL_64_fastpath+0x18/0xad
Add __mem_cgroup_free() which skips wb_domain_exit(). This is used by
both mem_cgroup_free() and mem_cgroup_alloc() clean up.
Fixes:
0b8f73e104285 ("mm: memcontrol: clean up alloc, online, offline, free functions")
Link: http://lkml.kernel.org/r/20170306192122.24262-1-tahsin@google.com
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kirill A. Shutemov [Fri, 10 Mar 2017 00:17:23 +0000 (16:17 -0800)]
thp: fix another corner case of munlock() vs. THPs
The following test case triggers BUG() in munlock_vma_pages_range():
int main(int argc, char *argv[])
{
int fd;
system("mount -t tmpfs -o huge=always none /mnt");
fd = open("/mnt/test", O_CREAT | O_RDWR);
ftruncate(fd, 4UL << 20);
mmap(NULL, 4UL << 20, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_FIXED | MAP_LOCKED, fd, 0);
mmap(NULL, 4096, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_LOCKED, fd, 0);
munlockall();
return 0;
}
The second mmap() create PTE-mapping of the first huge page in file. It
makes kernel munlock the page as we never keep PTE-mapped page mlocked.
On munlockall() when we handle vma created by the first mmap(),
munlock_vma_page() returns page_mask == 0, as the page is not mlocked
anymore. On next iteration follow_page_mask() return tail page, but
page_mask is HPAGE_NR_PAGES - 1. It makes us skip to the first tail
page of the next huge page and step on
VM_BUG_ON_PAGE(PageMlocked(page)).
The fix is not use the page_mask from follow_page_mask() at all. It has
no use for us.
Link: http://lkml.kernel.org/r/20170302150252.34120-1-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org> [4.5+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kirill A. Shutemov [Fri, 10 Mar 2017 00:17:20 +0000 (16:17 -0800)]
rmap: fix NULL-pointer dereference on THP munlocking
The following test case triggers NULL-pointer derefernce in
try_to_unmap_one():
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
int main(int argc, char *argv[])
{
int fd;
system("mount -t tmpfs -o huge=always none /mnt");
fd = open("/mnt/test", O_CREAT | O_RDWR);
ftruncate(fd, 2UL << 20);
mmap(NULL, 2UL << 20, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_FIXED | MAP_LOCKED, fd, 0);
mmap(NULL, 2UL << 20, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_LOCKED, fd, 0);
munlockall();
return 0;
}
Apparently, there's a case when we call try_to_unmap() on huge PMDs:
it's TTU_MUNLOCK.
Let's handle this case correctly.
Fixes:
c7ab0d2fdc84 ("mm: convert try_to_unmap_one() to use page_vma_mapped_walk()")
Link: http://lkml.kernel.org/r/20170302151159.30592-1-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
AKASHI Takahiro [Fri, 10 Mar 2017 00:17:17 +0000 (16:17 -0800)]
mm/memblock.c: fix memblock_next_valid_pfn()
Obviously, we should not access memblock.memory.regions[right] if
'right' is outside of [0..memblock.memory.cnt>.
Fixes:
b92df1de5d28 ("mm: page_alloc: skip over regions of invalid pfns where possible")
Link: http://lkml.kernel.org/r/20170303023745.9104-1-takahiro.akashi@linaro.org
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrea Arcangeli [Fri, 10 Mar 2017 00:17:14 +0000 (16:17 -0800)]
userfaultfd: selftest: vm: allow to build in vm/ directory
linux/tools/testing/selftests/vm $ make
gcc -Wall -I ../../../../usr/include compaction_test.c -lrt -o /compaction_test
/usr/lib/gcc/x86_64-pc-linux-gnu/4.9.4/../../../../x86_64-pc-linux-gnu/bin/ld: cannot open output file /compaction_test: Permission denied
collect2: error: ld returned 1 exit status
make: *** [../lib.mk:54: /compaction_test] Error 1
Since commit
a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
selftests/vm build fails if run from the "selftests/vm" directory, but
it works in the selftests/ directory. It's quicker to be able to do a
local vm-only build after a tree wipe and this patch allows for it
again.
Link: http://lkml.kernel.org/r/20170302173738.18994-4-aarcange@redhat.com
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>