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Merge "i.MX defconfig update for 4.6" from Shawn Guo:
- Enable i.MX25 Touchscreen controller and ADC support
- Enable NVMEM OCOTP driver support
- Clean up mxs_defconfig and imx_v4_v5_defconfig
- Enable initramfs support
- Enable PSCI, SAHARA and more Vybrid driver support
* tag 'imx-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx_v4_v5_defconfig: Enable initramfs support
ARM: imx_v4_v5_defconfig: Cleanup imx_v4_v5_defconfig
ARM: mxs_defconfig: Enable initramfs support
ARM: mxs_defconfig: Cleanup mxs_defconfig
ARM: imx_v6_v7_defconfig: enable useful configurations for Vybrid
ARM: imx_v6_v7_defconfig: Select CONFIG_CRYPTO_DEV_SAHARA
ARM: imx_v4_v5_defconfig: Add I.MX25 Touchscreen controller and ADC support.
ARM: mxs_defconfig: Select CONFIG_NVMEM_MXS_OCOTP
ARM: imx_v6_v7_defconfig: Select CONFIG_NVMEM_IMX_OCOTP
ARM: imx_v6_v7_defconfig: enable psci default
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This makes it possible to automatically boot-test this defconfig with
kernelci.org.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Regenerate imx_v4_v5_defconfig by running:
make imx_v4_v5_defconfig
- Manually disable EXT2_FS and EXT3_FS
make savedefconfig
mv defconfig arch/arm/configs/imx_v4_v5_defconfig
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Merge "Allwinner defconfig changes for 4.6" from Maxime Ripard:
A bunch of changes to add new drivers to the sunxi and multi_v7 defconfigs,
most notably the USB OTG that is finally enabled.
* tag 'sunxi-defconfig-for-4.6' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: sunxi_defconfig: Enable MUSB HDRC driver with Allwinner glue
ARM: multi_v7_defconfig: Enable A10 audio codec driver as module
ARM: multi_v7_defconfig: Enable MUSB HDRC driver with Allwinner glue
ARM: sunxi_defconfig: Enable INPUT_EVDEV so axp20x-pek can be used
ARM: sunxi_defconfig: Enable A10 audio codec driver
ARM: sunxi_defconfig: Enable sunxi IR driver
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Merge "mvebu defconfig for 4.6 (part 2)" from Gregory CLEMENT:
enable SRAM support in mvebu_v7_defconfig
* tag 'mvebu-defconfig-4.6-2' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: enable SRAM support in mvebu_v7_defconfig
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This makes it possible to automatically boot-test this defconfig with
kernelci.org.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Regenerate mxs_defconfig by running:
make mxs_defconfig
- Manually disable EXT2_FS and EXT3_FS
make savedefconfig
mv defconfig arch/arm/configs/mxs_defconfig
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Merge "Broadcom defconfig changes for 4.6" from Florian Fainelli:
This pull request contains defconfig changes for Broadcom ARM-based SoCs:
- Daniel enables all that is required to get the BCM283x (Raspberry Pi and
Raspberry Pi 2) SoCs to boot with multi_v7_defconfig
- Stefan enables the Raspberry Pi firmware driver and power domain drivers
in bcm2835_defconfig
- Stephen refreshes the bcm2835_defconfig, disables DEBUG_LL, and turns on
ARMv7 support which is needed for BCM2836 (Raspberry Pi 2)
* tag 'arm-soc/for-4.6/defconfig' of http://github.com/Broadcom/stblinux:
ARM: multi_v7_defconfig: Enable BCM283x
ARM: bcm2835_defconfig: Enable RPi power domain driver
ARM: bcm2835_defconfig: Enable RPi firmware driver
ARM: bcm2835_defconfig: enable ARMv7 support
ARM: bcm2835_defconfig: disable DEBUG_LL
ARM: bcm2835_defconfig: rebuild on next-20160205
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This makes it possible to automatically boot-test this defconfig with
kernelci.org.
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Regenerate multi_v5_defconfig by running:
make multi_v5_defconfig
make savedefconfig
mv defconfig arch/arm/configs/multi_v5_defconfig
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable configuration options useful for Vybrid:
- NFC NAND driver
- USB dual-role controller (and Chipidea Gadget support)
- Built-in EDMA DMA driver (to be available at LPUART probe)
- Vybrid ADC driver
- IIO hwmon support (used in i.MX 23/28, patch pending for Vybrid)
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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SoCFPGA defconfig update for v4.6
-Enable initrd/initramfs support
* tag 'socfpga_defconfig_for_v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
ARM: socfpga_defconfig: enable support for initramfs/initrd support
Signed-off-by: Olof Johansson <olof@lixom.net>
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defconfig update for 4.6:
- Addition of sama5d2 ADC to sama5_defconfig
* tag 'at91-ab-4.6-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
ARM: at91/defconfig: add sama5d2 adc support in sama5_defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
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Defconfig (exynos and multi_v7) changes for Exynos based boards for v4.6:
1. exynos defconfig:
a. Enable NEON and accelerated crypto,
b. Enable s5p-secss driver (Security SubSystem block for accelerating
some cryptographic operations),
2. exynos and multi_v7: Remove MAX77802 RTC Kconfig because the driver
was combined into existing rtc-max77686 driver. This depends on changes
from RTC tree.
* tag 'samsung-defconfig-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: multi_v7_defconfig: Remove MAX77802 RTC Kconfig symbol
ARM: exynos_defconfig: Remove MAX77802 RTC Kconfig symbol
rtc: max77686: Cleanup and reduce dmesg output
rtc: Remove Maxim 77802 driver
rtc: max77686: Properly handle regmap_irq_get_virq() error code
rtc: max77686: Fix unsupported year message
rtc: max77686: Add max77802 support
rtc: max77686: Add an indirection level to access RTC registers
rtc: max77686: Use a driver data struct instead hard-coded values
rtc: max77686: Use usleep_range() instead of msleep()
rtc: max77686: Use ARRAY_SIZE() instead of current array length
rtc: max77686: Fix max77686_rtc_read_alarm() return value
ARM: exynos_defconfig: Enable s5p-secss driver
ARM: exynos_defconfig: Enable NEON, accelerated crypto and cpufreq stats
Signed-off-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Lars Persson <larper@axis.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This makes the RealView defconfig select SMP on UP
so we only need one defconfig for RealView, then adds
USB mass storage configuration.
* tag 'realview-defconfig-redux' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator:
ARM: realview: enable USB storage in the defconfig
ARM: realview: delete realview-smp_defconfig
ARM: realview: activate SMP on the default defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
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This pull request brings in defconfig changes to enable bcm2836 in the
2835 and multi_v7 defconfigs.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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Enable CONFIG_BLK_DEV_INITRD.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
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Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Enable the BCM2835/BCM2836 options required to boot Raspberry Pi.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Olof Johansson <olof@lixom.net>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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After enabling the Raspberry Pi firmware driver which allow us to handle
power domains for USB or graphics.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This enables the Raspberry Pi driver for GPU specific features.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This makes the RPi2 work; it has an ARMv7 CPU.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This way the kernel works on both RPi0/1 and RPi2 even with earlyprintk
in the kernel cmdline; the two hardware platforms use different physical
addresses for peripherals, so the same DEBUG_LL configuration won't work
on both. If someone needs DEBUG_LL support, they can enable it locally.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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This separates explicit changes desired in later patches from "automatic"
or irrelevant changes caused solely by Kconfig changes.
make ARCH=arm bcm2835_defconfig
make ARCH=arm savedefconfig
mv defconfig arch/arm/configs/bcm2835_defconfig
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
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SRAM support is needed for the hardware buffer management used by the
mvneta driver.
[gregory.clement@free-electrons.com: add commit log]
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
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Enable configuration options useful for Vybrid:
- NFC NAND driver
- USB dual-role controller support
- FTM PWM driver
- DSPI SPI driver
- Colibri VF50 Touchscreen support.
Beside that, enable useful configurations such as IIO hwmon support
(used in i.MX 23/28, patch pending for Vybrid), PWM LED support and
CPU idle support.
Regenerated config using savedefconfig (which removes some configs
which are now enabled by default).
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Select the sahara crypto driver that is used on i.MX53.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
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Allwinner SoCs typically have a Mentor Graphics Inventra MUSB dual role
controller for USB OTG.
Now that the issue with MUSB and USB gadget registration order has been
resolved, we can enable this driver in dual role mode. This requires the
NOP USB transceiver driver, which is also enabled.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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It is not uncommon to boot a root filesystem from a USB
pendrive and similar, so enable USB mass storage, backed
by SCSI and SD block devices in the RealView defconfig.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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We enabled SMP in the realview_defconfig so delete the
SMP-specific defconfig.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The realview has two defconfigs: realview_defconfig and
realview-smp_defconfig. We now have working SMP_ON_UP so
make them equal so we can delete the -smp variant. For
some reason NO_HZ_FULL was missing from the plain
realview_defconfig.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The A10 audio codec driver supports the on-chip audio codec found on
Allwinner A10, A10s, A13, A20 SoCs.
Build it as a module, since it is not critical.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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Allwinner SoCs typically have a Mentor Graphics Inventra MUSB high speed
dual role controller for USB OTG.
Now that the issue with MUSB and USB gadget registration order has been
resolved, we can enable this driver in dual role mode.
This patch only enables the driver core and Allwinner platform support.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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sunxi_defconfig already enables INPUT_AXP20X_PEK, but the device is not
exposed to userspace. Enable INPUT_EVDEV so it is.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The A10 audio codec driver supports the on-chip audio codec found on
Allwinner A10, A10s, A13, A20 SoCs.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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A consumer IR receiver is commonly found on Allwinner SoC based
development boards and set top boxes. The driver has been available
for some time. Enable it by default.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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mvebu defconfig for 4.6 (part 1)
- Enable sound module needed for OpenRD in mvebu_v5_defconfig
- Add USB nop xceiv support in mvebu_v7_defconfig
* tag 'mvebu-defconfig-4.6-1' of git://git.infradead.org/linux-mvebu:
ARM: mvebu_v5_defconfig: Enable sound module needed for OpenRD
ARM: mvebu: Add USB nop xceiv support in mvebu_v7_defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
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Renesas ARM Based SoC Defconfig Updates for v4.6
* Enable XHCI_RCAR
* Do not enable CONFIG_CPU_BPREDICT_DISABLE
* tag 'renesas-defconfig-for-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: multi_v7_defconfig: Enable XHCI_RCAR
ARM: shmobile: enable XHCI_RCAR in defconfig
ARM: shmobile: defconfig: Do not enable CONFIG_CPU_BPREDICT_DISABLE
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull ARM SoC fixes from Olof Johansson:
"The first real batch of fixes for this release cycle, so there are a
few more than usual.
Most of these are fixes and tweaks to board support (DT bugfixes,
etc). I've also picked up a couple of small cleanups that seemed
innocent enough that there was little reason to wait (const/
__initconst and Kconfig deps).
Quite a bit of the changes on OMAP were due to fixes to no longer
write to rodata from assembly when ARM_KERNMEM_PERMS was enabled, but
there were also other fixes.
Kirkwood had a bunch of gpio fixes for some boards. OMAP had RTC
fixes on OMAP5, and Nomadik had changes to MMC parameters in DT.
All in all, mostly the usual mix of various fixes"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (46 commits)
ARM: multi_v7_defconfig: enable DW_WATCHDOG
ARM: nomadik: fix up SD/MMC DT settings
ARM64: tegra: Add chosen node for tegra132 norrin
ARM: realview: use "depends on" instead of "if" after prompt
ARM: tango: use "depends on" instead of "if" after prompt
ARM: tango: use const and __initconst for smp_operations
ARM: realview: use const and __initconst for smp_operations
bus: uniphier-system-bus: revive tristate prompt
arm64: dts: Add missing DMA Abort interrupt to Juno
bus: vexpress-config: Add missing of_node_put
ARM: dts: am57xx: sbc-am57x: correct Eth PHY settings
ARM: dts: am57xx: cl-som-am57x: fix CPSW EMAC pinmux
ARM: dts: am57xx: sbc-am57x: fix UART3 pinmux
ARM: dts: am57xx: cl-som-am57x: update SPI Flash frequency
ARM: dts: am57xx: cl-som-am57x: set HOST mode for USB2
ARM: dts: am57xx: sbc-am57x: fix SB-SOM EEPROM I2C address
ARM: dts: LogicPD Torpedo: Revert Duplicative Entries
ARM: dts: am437x: pixcir_tangoc: use correct flags for irq types
ARM: dts: am4372: fix irq type for arm twd and global timer
ARM: dts: at91: sama5d4 xplained: fix phy0 IRQ type
...
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Pull mailbox fixes from Jassi Brar:
- fix getting element from the pcc-channels array by simply indexing
into it
- prevent building mailbox-test driver for archs that don't have IOMEM
* 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Fix dependencies for !HAS_IOMEM archs
mailbox: pcc: fix channel calculation in get_pcc_channel()
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Pull USB fixes from Greg KH:
"Here are some USB fixes for 4.5-rc3.
The usual, xhci fixes for reported issues, combined with some small
gadget driver fixes, and a MAINTAINERS file update. All have been in
linux-next with no reported issues"
* tag 'usb-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: harden xhci_find_next_ext_cap against device removal
xhci: Fix list corruption in urb dequeue at host removal
usb: host: xhci-plat: fix NULL pointer in probe for device tree case
usb: xhci-mtk: fix AHB bus hang up caused by roothubs polling
usb: xhci-mtk: fix bpkts value of LS/HS periodic eps not behind TT
usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Broxton-M platforms
usb: xhci: set SSIC port unused only if xhci_suspend succeeds
usb: xhci: add a quirk bit for ssic port unused
usb: xhci: handle both SSIC ports in PME stuck quirk
usb: dwc3: gadget: set the OTG flag in dwc3 gadget driver.
Revert "xhci: don't finish a TD if we get a short-transfer event mid TD"
MAINTAINERS: fix my email address
usb: dwc2: Fix probe problem on bcm2835
Revert "usb: dwc2: Move reset into dwc2_get_hwparams()"
usb: musb: ux500: Fix NULL pointer dereference at system PM
usb: phy: mxs: declare variable with initialized value
usb: phy: msm: fix error handling in probe.
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Pull staging and IIO driver fixes from Greg KH:
"Here are some IIO and staging driver fixes for 4.5-rc3.
All of them, except one, are for IIO drivers, and one is for a speakup
driver fix caused by some earlier patches, to resolve a reported build
failure"
* tag 'staging-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Staging: speakup: Fix allyesconfig build on mn10300
iio: dht11: Use boottime
iio: ade7753: avoid uninitialized data
iio: pressure: mpl115: fix temperature offset sign
iio: imu: Fix dependencies for !HAS_IOMEM archs
staging: iio: Fix dependencies for !HAS_IOMEM archs
iio: adc: Fix dependencies for !HAS_IOMEM archs
iio: inkern: fix a NULL dereference on error
iio:adc:ti_am335x_adc Fix buffered mode by identifying as software buffer.
iio: light: acpi-als: Report data as processed
iio: dac: mcp4725: set iio name property in sysfs
iio: add HAS_IOMEM dependency to VF610_ADC
iio: add IIO_TRIGGER dependency to STK8BA50
iio: proximity: lidar: correct return value
iio-light: Use a signed return type for ltr501_match_samp_freq()
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Merge fixes from Andrew Morton:
"22 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
epoll: restrict EPOLLEXCLUSIVE to POLLIN and POLLOUT
radix-tree: fix oops after radix_tree_iter_retry
MAINTAINERS: trim the file triggers for ABI/API
dax: dirty inode only if required
thp: make deferred_split_scan() work again
mm: replace vma_lock_anon_vma with anon_vma_lock_read/write
ocfs2/dlm: clear refmap bit of recovery lock while doing local recovery cleanup
um: asm/page.h: remove the pte_high member from struct pte_t
mm, hugetlb: don't require CMA for runtime gigantic pages
mm/hugetlb: fix gigantic page initialization/allocation
mm: downgrade VM_BUG in isolate_lru_page() to warning
mempolicy: do not try to queue pages from !vma_migratable()
mm, vmstat: fix wrong WQ sleep when memory reclaim doesn't make any progress
vmstat: make vmstat_update deferrable
mm, vmstat: make quiet_vmstat lighter
mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT
memblock: don't mark memblock_phys_mem_size() as __init
dump_stack: avoid potential deadlocks
mm: validate_mm browse_rb SMP race condition
m32r: fix build failure due to SMP and MMU
...
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Pull Ceph fixes from Sage Weil:
"We have a few wire protocol compatibility fixes, ports of a few recent
CRUSH mapping changes, and a couple error path fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: MOSDOpReply v7 encoding
libceph: advertise support for TUNABLES5
crush: decode and initialize chooseleaf_stable
crush: add chooseleaf_stable tunable
crush: ensure take bucket value is valid
crush: ensure bucket id is valid before indexing buckets array
ceph: fix snap context leak in error path
ceph: checking for IS_ERR instead of NULL
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Pull drm fixes from Dave Airlie:
"Fixes all over the place:
- amdkfd: two static checker fixes
- mst: a bunch of static checker and spec/hw interaction fixes
- amdgpu: fix Iceland hw properly, and some fiji bugs, along with
some write-combining fixes.
- exynos: some regression fixes
- adv7511: fix some EDID reading issues"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (38 commits)
drm/dp/mst: deallocate payload on port destruction
drm/dp/mst: Reverse order of MST enable and clearing VC payload table.
drm/dp/mst: move GUID storage from mgr, port to only mst branch
drm/dp/mst: change MST detection scheme
drm/dp/mst: Calculate MST PBN with 31.32 fixed point
drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
drm/mst: Add range check for max_payloads during init
drm/mst: Don't ignore the MST PBN self-test result
drm: fix missing reference counting decrease
drm/amdgpu: disable uvd and vce clockgating on Fiji
drm/amdgpu: remove exp hardware support from iceland
drm/amdgpu: load MEC ucode manually on iceland
drm/amdgpu: don't load MEC2 on topaz
drm/amdgpu: drop topaz support from gmc8 module
drm/amdgpu: pull topaz gmc bits into gmc_v7
drm/amdgpu: The VI specific EXE bit should only apply to GMC v8.0 above
drm/amdgpu: iceland use CI based MC IP
drm/amdgpu: move gmc7 support out of CIK dependency
drm/amdgpu/gfx7: enable cp inst/reg error interrupts
drm/amdgpu/gfx8: enable cp inst/reg error interrupts
...
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Pull power management and ACPI fixes from Rafael Wysocki:
"These are: a fix for a recently introduced false-positive warnings
about PM domain pointers being changed inappropriately (harmless but
annoying), an MCH size workaround quirk for one more platform, a
compiler warning fix (generic power domains framework), an ACPI LPSS
(Intel SoCs) driver fixup and a cleanup of the ACPI CPPC core code.
Specifics:
- PM core fix to avoid false-positive warnings generated when the
pm_domain field is cleared for a device that appears to be bound to
a driver (Rafael Wysocki).
- New MCH size workaround quirk for Intel Haswell-ULT (Josh Boyer).
- Fix for an "unused function" compiler warning in the generic power
domains framework (Ulf Hansson).
- Fixup for the ACPI driver for Intel SoCs (acpi-lpss) to set the PM
domain pointer of a device properly in one place that was
overlooked by a recent PM core update (Andy Shevchenko).
- Removal of a redundant function declaration in the ACPI CPPC core
code (Timur Tabi)"
* tag 'pm+acpi-4.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: Avoid false-positive warnings in dev_pm_domain_set()
PM / Domains: Silence compiler warning for an unused function
ACPI / CPPC: remove redundant mbox_send_message() declaration
ACPI / LPSS: set PM domain via helper setter
PNP: Add Haswell-ULT to Intel MCH size workaround
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In the current implementation of the EPOLLEXCLUSIVE flag (added for
4.5-rc1), if epoll waiters create different POLL* sets and register them
as exclusive against the same target fd, the current implementation will
stop waking any further waiters once it finds the first idle waiter.
This means that waiters could miss wakeups in certain cases.
For example, when we wake up a pipe for reading we do:
wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM); So if
one epoll set or epfd is added to pipe p with POLLIN and a second set
epfd2 is added to pipe p with POLLRDNORM, only epfd may receive the
wakeup since the current implementation will stop after it finds any
intersection of events with a waiter that is blocked in epoll_wait().
We could potentially address this by requiring all epoll waiters that
are added to p be required to pass the same set of POLL* events. IE the
first EPOLL_CTL_ADD that passes EPOLLEXCLUSIVE establishes the set POLL*
flags to be used by any other epfds that are added as EPOLLEXCLUSIVE.
However, I think it might be somewhat confusing interface as we would
have to reference count the number of users for that set, and so
userspace would have to keep track of that count, or we would need a
more involved interface. It also adds some shared state that we'd have
store somewhere. I don't think anybody will want to bloat
__wait_queue_head for this.
I think what we could do instead, is to simply restrict EPOLLEXCLUSIVE
such that it can only be specified with EPOLLIN and/or EPOLLOUT. So
that way if the wakeup includes 'POLLIN' and not 'POLLOUT', we can stop
once we hit the first idle waiter that specifies the EPOLLIN bit, since
any remaining waiters that only have 'POLLOUT' set wouldn't need to be
woken. Likewise, we can do the same thing if 'POLLOUT' is in the wakeup
bit set and not 'POLLIN'. If both 'POLLOUT' and 'POLLIN' are set in the
wake bit set (there is at least one example of this I saw in fs/pipe.c),
then we just wake the entire exclusive list. Having both 'POLLOUT' and
'POLLIN' both set should not be on any performance critical path, so I
think that's ok (in fs/pipe.c its in pipe_release()). We also continue
to include EPOLLERR and EPOLLHUP by default in any exclusive set. Thus,
the user can specify EPOLLERR and/or EPOLLHUP but is not required to do
so.
Since epoll waiters may be interested in other events as well besides
EPOLLIN, EPOLLOUT, EPOLLERR and EPOLLHUP, these can still be added by
doing a 'dup' call on the target fd and adding that as one normally
would with EPOLL_CTL_ADD. Since I think that the POLLIN and POLLOUT
events are what we are interest in balancing, I think that the 'dup'
thing could perhaps be added to only one of the waiter threads.
However, I think that EPOLLIN, EPOLLOUT, EPOLLERR and EPOLLHUP should be
sufficient for the majority of use-cases.
Since EPOLLEXCLUSIVE is intended to be used with a target fd shared
among multiple epfds, where between 1 and n of the epfds may receive an
event, it does not satisfy the semantics of EPOLLONESHOT where only 1
epfd would get an event. Thus, it is not allowed to be specified in
conjunction with EPOLLEXCLUSIVE.
EPOLL_CTL_MOD is also not allowed if the fd was previously added as
EPOLLEXCLUSIVE. It seems with the limited number of flags to not be as
interesting, but this could be relaxed at some further point.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Tested-by: Madars Vitolins <m@silodev.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Eric Wong <normalperson@yhbt.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Arnd Bergmann
Jan Luebbe
Stefan Agner
Olof Johansson
Lars Persson
Florian Fainelli
Dinh Nguyen
Ludovic Desroches
Daniel Stone
Stefan Wahren
Stephen Warren
Marcin Wojtas
Fabio Estevam
Denis Carikli
Chen-Yu Tsai
Linus Walleij
Linus Torvalds
Jason Baron