Biao Huang [Tue, 16 Feb 2016 19:16:33 +0000 (03:16 +0800)]
pinctrl: mediatek: add input-enable setting in gpio_request_enable
Since input-disable cuts off input signal of gpio, add input-enable
setting in .gpio_request_enable implementation to ensure gpio function well
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Wed, 17 Feb 2016 16:08:47 +0000 (17:08 +0100)]
pinctrl: mtk2701: skip setting .owner
The device core will handle this and Coccinelle complains.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Varadarajan Narayanan [Thu, 19 Nov 2015 23:19:28 +0000 (17:19 -0600)]
pinctrl: qcom: ipq4019: Add IPQ4019 pinctrl support
Add pinctrl driver support for IPQ4019 platform
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[Dropped .owner assignment]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Andrzej Hajda [Thu, 11 Feb 2016 14:34:08 +0000 (15:34 +0100)]
pinctrl: mediatek: fix handling return value of mtk_pmx_find_gpio_mode
The function can return negative values, so its result should
be assigned to signed variable.
The problem has been detected using coccinelle semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci.
Fixes:
59ee9c9 ('pinctrl: mediatek: Add gpio_request_enable support')
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Jean Delvare [Thu, 11 Feb 2016 11:06:37 +0000 (12:06 +0100)]
pinctrl: Turn AMD support to tristate
The pinctrl-amd driver builds just fine as a module so give
users this option.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Arnd Bergmann [Mon, 8 Feb 2016 14:29:49 +0000 (15:29 +0100)]
pinctrl: coh901: fix initconst annotation
Clang correctly points out that the section attribute for u300_gpio_confdata
is in the wrong place:
drivers/pinctrl/pinctrl-coh901.c:130:37: error: '__section__' attribute only applies to functions and global variables
This moves it from the type name to the variable, so it actually gets
discarded.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Wei Yongjun [Sat, 6 Feb 2016 14:56:36 +0000 (22:56 +0800)]
pinctrl: Fix return value check in amd_gpio_probe()
In case of error, the function devm_ioremap_nocache() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Helmut Buchsbaum [Thu, 4 Feb 2016 08:14:08 +0000 (09:14 +0100)]
pinctrl: zynq: fix typo in group name for qspi1
Due to a typo Zynq pin controller does not set pin function of qspi1
when using function qspi1. So pin group for qspi1 has to be renamed to
"qspi1_0_grp" as outlined in the corresponding bindings documentation.
This also removes kernel message:
zynq-pinctrl 700.pinctrl: invalid group "qspi1_0_grp" for function "qspi1"
Signed-off-by: Helmut Buchsbaum <helmut.buchsbaum@gmail.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Masahiro Yamada [Wed, 10 Feb 2016 09:54:32 +0000 (18:54 +0900)]
pinctrl: mediatek: guard sub-directory with CONFIG_PINCTRL_MTK
CONFIG_PINCTRL_MTK is more suitable than CONFIG_ARCH_MEDIATEK
to guard the drivers/pinctrl/mediatek/ directory.
(I renamed CONFIG_PINCTRL_MTK_COMMON to CONFIG_PINCTRL_MTK.)
This allows COMPILE_TEST to descend into drivers/pinctrl/mediatek
without CONFIG_ARCH_MEDIATEK define.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Jean Delvare [Fri, 12 Feb 2016 10:13:13 +0000 (11:13 +0100)]
pinctrl: intel: Remove unneeded header includes
pinctrl-intel doesn't use anything from <linux/init.h>,
<linux/acpi.h>, <linux/gpio.h> or <linux/pm.h>, so it should not
include these header files.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Krzysztof Adamski [Tue, 9 Feb 2016 14:58:49 +0000 (15:58 +0100)]
pinctrl: sunxi: Use pin number when calling sunxi_pmx_set
sunxi_pmx_set accepts pin number and then calculates offset by
subtracting pin_base from it. sunxi_pinctrl_gpio_get, on the other hand,
gets offset so we have to convert it to pin number so we won't get
negative value in sunxi_pmx_set.
This was only used on A10 so far, where there is only one GPIO chip with
pin_base set to 0 so it didn't matter. However H3 also requires this
workaround but have two pinmux sections, triggering problem for PL port.
Signed-off-by: Krzysztof Adamski <k@japko.eu>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Krzysztof Adamski [Tue, 2 Feb 2016 21:21:51 +0000 (22:21 +0100)]
pinctrl: sunxi: Add H3 R_PIO controller support
H3 has additional PIO controller similar to what we can find on A23.
It's a 12 pin port, described in H3 Datasheet rev 1.1, pages 345-350.
Signed-off-by: Krzysztof Adamski <k@japko.eu>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
David Wu [Mon, 1 Feb 2016 02:58:21 +0000 (10:58 +0800)]
pinctrl: rockchip: add support for the rk3399
The pinctrl of rk3399 is much different from other's,
especially the 3bits of drive strength.
Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Masahiro Yamada [Sun, 31 Jan 2016 13:32:51 +0000 (22:32 +0900)]
pinctrl: uniphier: add COMPILE_TEST option
Add COMPILE_TEST for the compilation test coverage.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Tue, 9 Feb 2016 09:54:48 +0000 (10:54 +0100)]
Merge branch 'devel-mt2701' into devel
Maxime Coquelin [Mon, 8 Feb 2016 17:57:39 +0000 (18:57 +0100)]
pinctrl: stm32: Fix compile testing selection
While selecting the driver for compile testing seemed possible,
the driver was not compiled because the driver directory was only
added if ARCH_STM32 was selected.
This patch now makes the pinctrl Makefile to add stm32 directory if
PINCTRL_STM32 is selected.
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Maxime Coquelin [Mon, 8 Feb 2016 17:57:38 +0000 (18:57 +0100)]
pinctrl: stm32: Remove dependency with DT bindings header files
Some macros where defined in DT bindings headers, whereas only used
in the driver.
This patch moves these macros to the driver side.
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Joshua Henderson [Mon, 1 Feb 2016 22:48:30 +0000 (15:48 -0700)]
pinctrl: pinctrl-pic32: Add PIC32 pin control driver
Add a driver for the pin controller present on the Microchip PIC32
including the specific variant PIC32MZDA. This driver provides pinmux
and pinconfig operations as well as GPIO and IRQ chips for the GPIO
banks.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Joshua Henderson [Mon, 1 Feb 2016 22:48:29 +0000 (15:48 -0700)]
pinctrl: Add DT bindings for PIC32 pin control and GPIO
Document the devicetree bindings for PINCTRL and GPIO found on Microchip
PIC32 class devices.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Fri, 5 Feb 2016 22:47:13 +0000 (23:47 +0100)]
pinctrl: stm32: fix compile error and modernize
- Fix the dev->parent assignment compile error
- Use gpiochip_get_data() to get the data pointer for the
banks
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Masahiro Yamada [Sat, 23 Jan 2016 15:30:08 +0000 (00:30 +0900)]
pinctrl: tegra: move Tegra pinctrl drivers to sub-directory
Tegra has several pinctrl drivers. Now it is reasonable enough to
move them into drivers/pinctrl/tegra/.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Biao Huang [Wed, 3 Feb 2016 01:24:46 +0000 (09:24 +0800)]
pinctrl: mediatek: Add gpio_request_enable support
Implement the .gpio_request_enable() callbacks in struct pinmux_ops
in mediatek pinctrl driver. Make sure that when gpio_request is called,
GPIO on the pin is enabled.
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Masahiro Yamada [Sat, 23 Jan 2016 15:32:09 +0000 (00:32 +0900)]
pinctrl: sunxi: guard sub-directory with CONFIG_PINCTRL_SUNXI
CONFIG_PINCTRL_SUNXI is more suitable than CONFIG_ARCH_SUNXI
to guard the drivers/pinctrl/sunxi/ directory.
(I renamed CONFIG_PINCTRL_SUNXI_COMMON to CONFIG_PINCTRL_SUNXI.)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Walleij [Wed, 27 Jan 2016 21:38:30 +0000 (22:38 +0100)]
pinctrl: nomadik: stn8815 CLCD alternate functions
The STn8815 has 22 dedicated pins for CLCD with up to 16 bits
in parallel, but pins 32 thru 39 can be used for an additional
CLCD signal lines 16 thru 23.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Masahiro Yamada [Sat, 23 Jan 2016 15:31:08 +0000 (00:31 +0900)]
pinctrl: pxa: guard sub-directory with CONFIG_PINCTRL_PXA
CONFIG_PINCTRL_PXA is more suitable than CONFIG_ARCH_PXA
to guard the drivers/pinctrl/pxa/ directory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Biao Huang [Wed, 27 Jan 2016 01:24:42 +0000 (09:24 +0800)]
pinctrl: mediatek: Add Pinctrl/GPIO/EINT driver for mt2701
Add mt2701 support using mediatek common pinctrl driver.
MT2701 have some special pins need an extra setting register
than other ICs, so adding this support to common code.
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Acked-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Biao Huang [Wed, 27 Jan 2016 01:24:41 +0000 (09:24 +0800)]
pinctrl: dt bindings: Add pinfunc header file for mt2701
Add pinfunc header file, mt2701 related dts will include it
Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Stephen Boyd [Fri, 8 Jan 2016 20:25:53 +0000 (12:25 -0800)]
pinctrl: qcom: spmi-mpp: Skip pullup on ULT type MPPs
The ULT type of MPPs don't have a pullup. Skip configuring the
pullup on these types of pins.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Stefan Agner [Fri, 8 Jan 2016 18:50:30 +0000 (10:50 -0800)]
pinctrl: freescale: imx: implement gpio_disable_free for Vybrid
The Freescale Vybrid SoC has GPIO capabilities as part of the
IOMUXC. To enable GPIO's, the gpio_request_enable callback has
been implemented, however the corsponding gpio_disable_free
callback is missing. So far, disabling (unexporting) a GPIO left
the pin in its last state.
Implement a proper gpio_disable_free function which clears the
three enable bits which influence the state (IBE, OBE and PUE).
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Paul Gortmaker [Mon, 4 Jan 2016 17:44:10 +0000 (12:44 -0500)]
pinctrl: mediatek: mt8* make driver explicitly non-modular
The Kconfig for these drivers are currently:
config PINCTRL_MT8127
bool "Mediatek MT8127 pin control" if COMPILE_TEST && !MACH_MT8127
config PINCTRL_MT8135
bool "Mediatek MT8135 pin control" if COMPILE_TEST && !MACH_MT8135
config PINCTRL_MT8173
bool "Mediatek MT8173 pin control"
...meaning that they are currently not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
A recent commit moved these from module_init to arch_initcall already, so
the init ordering remains untouched with this commit.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
Cc: Daniel Kurtz <djkurtz@chromium.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Hongzhou Yang <hongzhou.yang@mediatek.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: linux-gpio@vger.kernel.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Maxime Coquelin [Thu, 14 Jan 2016 12:16:30 +0000 (13:16 +0100)]
pinctrl: Add STM32 MCUs support
This patch adds pinctrl and GPIO support to STMicroelectronic's STM32
family of MCUs.
While it only supports STM32F429 for now, it has been designed to enable
support of other MCUs of the family (e.g. STM32F746).
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Maxime Coquelin [Thu, 14 Jan 2016 12:16:28 +0000 (13:16 +0100)]
Documentation: dt-bindings: Document STM32 pinctrl driver DT bindings
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Patrice Chotard [Mon, 18 Jan 2016 15:38:31 +0000 (16:38 +0100)]
pinctrl: st: activate strict mux mode
This activates strict mode muxing for the ST pin controllers,
as these do not allow GPIO and functions to use the same pin
simultaneously.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Linus Torvalds [Sun, 24 Jan 2016 21:06:47 +0000 (13:06 -0800)]
Linux 4.5-rc1
Linus Torvalds [Sun, 24 Jan 2016 20:50:56 +0000 (12:50 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS for 4.5 plus some 4.4 fixes.
The executive summary:
- ATH79 platform improvments, use DT bindings for the ATH79 USB PHY.
- Avoid useless rebuilds for zboot.
- jz4780: Add NEMC, BCH and NAND device tree nodes
- Initial support for the MicroChip's DT platform. As all the device
drivers are missing this is still of limited use.
- Some Loongson3 cleanups.
- The unavoidable whitespace polishing.
- Reduce clock skew when synchronizing the CPU cycle counters on CPU
startup.
- Add MIPS R6 fixes.
- Lots of cleanups across arch/mips as fallout from KVM.
- Lots of minor fixes and changes for IEEE 754-2008 support to the
FPU emulator / fp-assist software.
- Minor Ralink, BCM47xx and bcm963xx platform support improvments.
- Support SMP on BCM63168"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits)
MIPS: zboot: Add support for serial debug using the PROM
MIPS: zboot: Avoid useless rebuilds
MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
MIPS: bcm963xx: Update bcm_tag field image_sequence
MIPS: bcm963xx: Move extended flash address to bcm_tag header file
MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
MIPS: bcm63xx: nvram: Use nvram structure definition from header file
MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
MAINTAINERS: Add KVM for MIPS entry
MIPS: KVM: Add missing newline to kvm_err()
MIPS: Move KVM specific opcodes into asm/inst.h
MIPS: KVM: Use cacheops.h definitions
MIPS: Break down cacheops.h definitions
MIPS: Use EXCCODE_ constants with set_except_vector()
MIPS: Update trap codes
MIPS: Move Cause.ExcCode trap codes to mipsregs.h
MIPS: KVM: Make kvm_mips_{init,exit}() static
MIPS: KVM: Refactor added offsetof()s
MIPS: KVM: Convert EXPORT_SYMBOL to _GPL
...
Linus Torvalds [Sun, 24 Jan 2016 20:45:35 +0000 (12:45 -0800)]
Merge tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86
Pull x86 platform driver updates from Darren Hart:
"Emergency travel prevented me from completing my final testing on this
until today. Nothing here that couldn't wait until RC1 fixes, but I
thought it best to get it out sooner rather than later as it does
contain a build warning fix.
Summary:
A build warning fix, MAINTAINERS cleanup, and a new DMI quirk:
ideapad-laptop:
- Add Lenovo Yoga 700 to no_hw_rfkill dmi list
MAINTAINERS:
- Combine multiple telemetry entries
intel_telemetry_debugfs:
- Fix unused warnings in telemetry debugfs"
* tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
MAINTAINERS: Combine multiple telemetry entries
intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
Linus Torvalds [Sun, 24 Jan 2016 20:43:06 +0000 (12:43 -0800)]
Merge branch 'next' of git://git./linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:
"The top merge commit was re-generated yesterday because two topic
branches were dropped from this pull request in the last minute due to
some unaddressed comments. All the other material has been in
linux-next for quite a while.
Specifics:
- Enhance thermal core to handle unexpected device cooling states
after fresh boot and system resume. From Zhang Rui and Chen Yu.
- Several fixes and cleanups on Rockchip and RCAR thermal drivers.
From Caesar Wang and Kuninori Morimoto.
- Add Broxton support for Intel processor thermal reporting device
driver. From Amy Wiles"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: trip_point_temp_store() calls thermal_zone_device_update()
thermal: rcar: rcar_thermal_get_temp() return error if strange temp
thermal: rcar: check irq possibility in rcar_thermal_irq_xxx()
thermal: rcar: check every rcar_thermal_update_temp() return value
thermal: rcar: move rcar_thermal_dt_ids to upside
thermal: rockchip: Support the RK3399 SoCs in thermal driver
thermal: rockchip: Support the RK3228 SoCs in thermal driver
dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible
thermal: rockchip: fix a trivial typo
Thermal: Enable Broxton SoC thermal reporting device
thermal: constify pch_dev_ops structure
Thermal: do thermal zone update after a cooling device registered
Thermal: handle thermal zone device properly during system sleep
Thermal: initialize thermal zone device correctly
Linus Torvalds [Sun, 24 Jan 2016 20:39:09 +0000 (12:39 -0800)]
Merge tag 'for-linus-4.5-merge-window' of git://git./linux/kernel/git/ericvh/v9fs
Pull 9p updates from Eric Van Hensbergen:
"Sorry for the last minute pull request, there's was a change that
didn't get pulled into for-next until two weeks ago and I wanted to
give it some bake time.
Summary:
Rework and error handling fixes, primarily in the fscatch and fd
transports"
* tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
fs/9p: use fscache mutex rather than spinlock
9p: trans_fd, bail out if recv fcall if missing
9p: trans_fd, read rework to use p9_parse_header
net/9p: Add device name details on error
Linus Torvalds [Sun, 24 Jan 2016 20:34:13 +0000 (12:34 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
"The two main changes are aio support in CephFS, and a series that
fixes several issues in the authentication key timeout/renewal code.
On top of that are a variety of cleanups and minor bug fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
libceph: remove outdated comment
libceph: kill off ceph_x_ticket_handler::validity
libceph: invalidate AUTH in addition to a service ticket
libceph: fix authorizer invalidation, take 2
libceph: clear messenger auth_retry flag if we fault
libceph: fix ceph_msg_revoke()
libceph: use list_for_each_entry_safe
ceph: use i_size_{read,write} to get/set i_size
ceph: re-send AIO write request when getting -EOLDSNAP error
ceph: Asynchronous IO support
ceph: Avoid to propagate the invalid page point
ceph: fix double page_unlock() in page_mkwrite()
rbd: delete an unnecessary check before rbd_dev_destroy()
libceph: use list_next_entry instead of list_entry_next
ceph: ceph_frag_contains_value can be boolean
ceph: remove unused functions in ceph_frag.h
Linus Torvalds [Sun, 24 Jan 2016 20:31:12 +0000 (12:31 -0800)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull SMB3 fixes from Steve French:
"A collection of CIFS/SMB3 fixes.
It includes a couple bug fixes, a few for improved debugging of
cifs.ko and some improvements to the way cifs does key generation.
I do have some additional bug fixes I expect in the next week or two
(to address a problem found by xfstest, and some fixes for SMB3.11
dialect, and a couple patches that just came in yesterday that I am
reviewing)"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs_dbg() outputs an uninitialized buffer in cifs_readdir()
cifs: fix race between call_async() and reconnect()
Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this.
cifs: Allow using O_DIRECT with cache=loose
cifs: Make echo interval tunable
cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary
Print IP address of unresponsive server
cifs: Ratelimit kernel log messages
Josh Boyer [Sun, 24 Jan 2016 15:46:42 +0000 (10:46 -0500)]
ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list
Like the Yoga 900 models the Lenovo Yoga 700 does not have a
hw rfkill switch, and trying to read the hw rfkill switch through the
ideapad module causes it to always reported blocking breaking wifi.
This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing
the wifi breakage.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272
Tested-by: <dinyar.rabady+spam@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Souvik Kumar Chakravarty [Thu, 21 Jan 2016 04:00:50 +0000 (09:30 +0530)]
MAINTAINERS: Combine multiple telemetry entries
This patch combines all the telemetry file entries in MAINTAINERS via
wildcard.
Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Souvik Kumar Chakravarty [Wed, 20 Jan 2016 06:50:46 +0000 (12:20 +0530)]
intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
This patch fixes compile time warnings when CONFIG_PM_SLEEP
is undefined. In this case sleep related counters are unused.
Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Christoph Lameter [Fri, 22 Jan 2016 16:46:14 +0000 (10:46 -0600)]
vmstat: Remove BUG_ON from vmstat_update
If we detect that there is nothing to do just set the flag and do not
check if it was already set before. Races really do not matter. If the
flag is set by any code then the shepherd will start dealing with the
situation and reenable the vmstat workers when necessary again.
Since commit
0eb77e988032 ("vmstat: make vmstat_updater deferrable again
and shut down on idle") quiet_vmstat might update cpu_stat_off and mark
a particular cpu to be handled by vmstat_shepherd. This might trigger a
VM_BUG_ON in vmstat_update because the work item might have been
sleeping during the idle period and see the cpu_stat_off updated after
the wake up. The VM_BUG_ON is therefore misleading and no more
appropriate. Moreover it doesn't really suite any protection from real
bugs because vmstat_shepherd will simply reschedule the vmstat_work
anytime it sees a particular cpu set or vmstat_update would do the same
from the worker context directly. Even when the two would race the
result wouldn't be incorrect as the counters update is fully idempotent.
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ralf Baechle [Sun, 24 Jan 2016 03:14:40 +0000 (04:14 +0100)]
Merge branch '4.4-fixes' into mips-for-linux-next
Alban Bedel [Thu, 10 Dec 2015 09:57:21 +0000 (10:57 +0100)]
MIPS: zboot: Add support for serial debug using the PROM
As most platforms implement the PROM serial interface prom_putchar()
add a simple bridge to allow re-using this code for zboot.
Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Alban Bedel [Thu, 10 Dec 2015 09:57:20 +0000 (10:57 +0100)]
MIPS: zboot: Avoid useless rebuilds
Add dummy.o to the targets list, and fill targets automatically from
$(vmlinuzobjs) to avoid having to maintain two lists.
When building with XZ compression copy ashldi3.c to the build
directory to use a different object file for the kernel and zboot.
Without this the same object file need to be build with different
flags which cause a rebuild at every run.
Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11810/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Florian Fainelli [Wed, 6 Jan 2016 18:51:05 +0000 (10:51 -0800)]
MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB
Allow BMIPS_GENERIC supported platforms to build GPIO controller
drivers.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Dragan Stancevic <dragan.stancevic@gmail.com>
Cc: cernekee@gmail.com
Cc: jaedon.shin@gmail.com
Cc: gregory.0xf0@gmail.com
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12019/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:50:13 +0000 (22:50 +0000)]
MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function
Remove bcm63xx_nvram_get_psi_size() as it now has no users.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11836/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:48:44 +0000 (22:48 +0000)]
MIPS: bcm963xx: Update bcm_tag field image_sequence
The "dual_image" and "inactive_flag" fields should be merged into a single
"image_sequence" field.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11834/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:47:55 +0000 (22:47 +0000)]
MIPS: bcm963xx: Move extended flash address to bcm_tag header file
The extended flash address needs to be subtracted from bcm_tag flash
image offsets. Move this value to the bcm_tag header file.
Renamed define name to consistently use bcm963xx for flash layout
which should be considered a property of the board and not the SoC
(i.e. bcm63xx could theoretically be used on a board without CFE
or any flash).
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11833/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:46:59 +0000 (22:46 +0000)]
MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure
Move Broadcom BCM963xx image tag data structure to include/linux/
so that drivers outside of mach-bcm63xx can use it.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11832/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:46:15 +0000 (22:46 +0000)]
MIPS: bcm63xx: nvram: Use nvram structure definition from header file
Use the common definition of the nvram structure from the header file
include/linux/bcm963xx_nvram.h instead of maintaining a separate copy.
Read the version 5 size of nvram data from memory and then call the
new checksum verification function from the header file.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11831/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Simon Arlott [Sun, 13 Dec 2015 22:45:30 +0000 (22:45 +0000)]
MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure
Broadcom BCM963xx boards have multiple nvram variants across different
SoCs with additional checksum fields added whenever the size of the
nvram was extended.
Add this structure as a header file so that multiple drivers can use it.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: MTD Maling List <linux-mtd@lists.infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11830/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Sun, 24 Jan 2016 02:45:06 +0000 (18:45 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"Initial roundup of 4.5 merge window patches
- Remove usage of ib_query_device and instead store attributes in
ib_device struct
- Move iopoll out of block and into lib, rename to irqpoll, and use
in several places in the rdma stack as our new completion queue
polling library mechanism. Update the other block drivers that
already used iopoll to use the new mechanism too.
- Replace the per-entry GID table locks with a single GID table lock
- IPoIB multicast cleanup
- Cleanups to the IB MR facility
- Add support for 64bit extended IB counters
- Fix for netlink oops while parsing RDMA nl messages
- RoCEv2 support for the core IB code
- mlx4 RoCEv2 support
- mlx5 RoCEv2 support
- Cross Channel support for mlx5
- Timestamp support for mlx5
- Atomic support for mlx5
- Raw QP support for mlx5
- MAINTAINERS update for mlx4/mlx5
- Misc ocrdma, qib, nes, usNIC, cxgb3, cxgb4, mlx4, mlx5 updates
- Add support for remote invalidate to the iSER driver (pushed
through the RDMA tree due to dependencies, acknowledged by nab)
- Update to NFSoRDMA (pushed through the RDMA tree due to
dependencies, acknowledged by Bruce)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (169 commits)
IB/mlx5: Unify CQ create flags check
IB/mlx5: Expose Raw Packet QP to user space consumers
{IB, net}/mlx5: Move the modify QP operation table to mlx5_ib
IB/mlx5: Support setting Ethernet priority for Raw Packet QPs
IB/mlx5: Add Raw Packet QP query functionality
IB/mlx5: Add create and destroy functionality for Raw Packet QP
IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types
IB/mlx5: Allocate a Transport Domain for each ucontext
net/mlx5_core: Warn on unsupported events of QP/RQ/SQ
net/mlx5_core: Add RQ and SQ event handling
net/mlx5_core: Export transport objects
IB/mlx5: Expose CQE version to user-space
IB/mlx5: Add CQE version 1 support to user QPs and SRQs
IB/mlx5: Fix data validation in mlx5_ib_alloc_ucontext
IB/sa: Fix netlink local service GFP crash
IB/srpt: Remove redundant wc array
IB/qib: Improve ipoib UD performance
IB/mlx4: Advertise RoCE v2 support
IB/mlx4: Create and use another QP1 for RoCEv2
IB/mlx4: Enable send of RoCE QP1 packets with IP/UDP headers
...
James Hogan [Wed, 16 Dec 2015 23:49:41 +0000 (23:49 +0000)]
MAINTAINERS: Add KVM for MIPS entry
I've pretty much been maintaining KVM for MIPS for a while now. Lets
make it more official (and make sure I get Cc'd on relevant patches).
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11898/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:39 +0000 (23:49 +0000)]
MIPS: KVM: Add missing newline to kvm_err()
Add missing newline to end of kvm_err string when guest PMAP couldn't be
allocated.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11896/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:38 +0000 (23:49 +0000)]
MIPS: Move KVM specific opcodes into asm/inst.h
The header arch/mips/kvm/opcode.h defines a few extra opcodes which
aren't in arch/mips/include/uapi/asm/inst.h. There's nothing KVM
specific about them, so lets move them into inst.h where they belong and
delete the header.
Note that mfmcz_op is renamed to mfmc0_op to match the instruction set
manual, and wait_op was already added to inst.h in commit
b0a3eae2b943
("MIPS: inst.h: define COP0 wait op"), merged in v3.16-rc1.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11895/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:37 +0000 (23:49 +0000)]
MIPS: KVM: Use cacheops.h definitions
Drop the custom cache operation code definitions used by KVM for
emulating guest CACHE instructions, and switch to use the existing
definitions in <asm/cacheops.h>.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11893/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:36 +0000 (23:49 +0000)]
MIPS: Break down cacheops.h definitions
Most of the cache op codes defined in cacheops.h are split into a 2-bit
cache identifier, and a 3-bit cache op code which does largely the same
thing semantically regardless of the cache identifier.
To allow the use of these definitions by KVM for decoding cache ops,
break the definitions down into parts where it makes sense to do so, and
add masks for the Cache and Op field within the cache op.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11892/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:35 +0000 (23:49 +0000)]
MIPS: Use EXCCODE_ constants with set_except_vector()
The first argument to set_except_vector is the ExcCode, which we now
have definitions for. Lets make use of them.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11894/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:34 +0000 (23:49 +0000)]
MIPS: Update trap codes
Add a few missing trap codes.
[ralf@linux-mips.org: Drop removal of exception codes. I don't care what
the incomplete architecture spec says; it can't change existing hardware
and VCEI is supported indeed.]
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11890/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:33 +0000 (23:49 +0000)]
MIPS: Move Cause.ExcCode trap codes to mipsregs.h
Move the Cause.ExcCode trap code definitions from kvm_host.h to
mipsregs.h, since they describe architectural bits rather than KVM
specific constants, and change the prefix from T_ to EXCCODE_.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11891/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:32 +0000 (23:49 +0000)]
MIPS: KVM: Make kvm_mips_{init,exit}() static
The module init and exit functions have no need to be global, so make
them static.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11889/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:31 +0000 (23:49 +0000)]
MIPS: KVM: Refactor added offsetof()s
When calculating the offsets into the commpage for dynamically
translated mtc0/mfc0 guest instructions, multiple offsetof()s are added
together to find the offset of the specific register in the mips_coproc,
within the commpage.
Simplify each of these cases to a single offsetof() to find the offset
of the specific register within the commpage.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11888/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:30 +0000 (23:49 +0000)]
MIPS: KVM: Convert EXPORT_SYMBOL to _GPL
Export symbols only to GPL modules to match other KVM symbols in
virt/kvm/ and arch/*/kvm/.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11887/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:29 +0000 (23:49 +0000)]
MIPS: KVM: Drop unused kvm_mips_host_tlb_inv_index()
The function kvm_mips_host_tlb_inv_index() is unused, so drop it
completely.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11886/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:28 +0000 (23:49 +0000)]
MIPS: Move definition of DC bit to mipsregs.h
The CAUSEB_DC and CAUSEF_DC definitions used by KVM are defined in
asm/kvm_host.h, but all the other Cause register field definitions are
found in asm/mipsregs.h.
Lets reunite the DC bit definitions with its friends in mipsregs.h.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11885/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:27 +0000 (23:49 +0000)]
MIPS: KVM: Drop some unused definitions from kvm_host.h
Some definitions in the MIPS asm/kvm_host.h are completely unused, so
lets drop them.
MS_TO_NS is no longer used since commit
e30492bbe95a ("MIPS: KVM:
Rewrite count/compare timer emulation"). The others don't appear ever to
have been used.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11884/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Wed, 16 Dec 2015 23:49:26 +0000 (23:49 +0000)]
MIPS: KVM: Trivial whitespace and style fixes
A bunch of misc whitespace and style fixes within arch/mips/kvm/.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11883/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Joshua Henderson [Thu, 14 Jan 2016 01:15:47 +0000 (18:15 -0700)]
MIPS: pic32mzda: Add initial PIC32MZDA Starter Kit defconfig
This adds an initial default config that enables all available PIC32
drivers and is enough for booting a PIC32MZDA Starter Kit.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12105/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Joshua Henderson [Thu, 14 Jan 2016 01:15:46 +0000 (18:15 -0700)]
MIPS: dts: Add initial DTS for the PIC32MZDA Starter Kit
This adds basic DTS configuration for the PIC32MZDA chip and in turn the
PIC32MZDA Starter Kit.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12104/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Joshua Henderson [Thu, 14 Jan 2016 01:15:39 +0000 (18:15 -0700)]
MIPS: Add support for PIC32MZDA platform
This adds support for the Microchip PIC32 MIPS microcontroller with the
specific variant PIC32MZDA. PIC32MZDA is based on the MIPS m14KEc core
and boots using device tree.
This includes an early pin setup and early clock setup needed prior to
device tree being initialized. In additon, an interface is provided to
synchronize access to registers shared across several peripherals.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12097/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Joshua Henderson [Thu, 14 Jan 2016 01:15:38 +0000 (18:15 -0700)]
dt/bindings: Add bindings for PIC32/MZDA platforms
This adds support for the Microchip PIC32 platform along with the
specific variant PIC32MZDA on a PIC32MZDA Starter Kit.
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12096/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cristian Birsan [Thu, 14 Jan 2016 01:15:35 +0000 (18:15 -0700)]
IRQCHIP: irq-pic32-evic: Add support for PIC32 interrupt controller
This adds support for the interrupt controller present on PIC32 class
devices. It handles all internal and external interrupts. This controller
exists outside of the CPU core and is the arbitrator of all interrupts
(including interrupts from the CPU itself) before they are presented to
the CPU.
The following features are supported:
- DT properties for EVIC and for devices/peripherals that use interrupt lines
- Persistent and non-persistent interrupt handling
- irqdomain and generic chip support
- Configuration of external interrupt edge polarity
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12092/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cristian Birsan [Thu, 14 Jan 2016 01:15:34 +0000 (18:15 -0700)]
dt/bindings: Add bindings for PIC32 interrupt controller
Document the devicetree bindings for the interrupt controller on
Microchip PIC32 class devices.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Joshua Henderson <joshua.henderson@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12093/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Álvaro Fernández Rojas [Sun, 17 Jan 2016 10:02:35 +0000 (11:02 +0100)]
MIPS: bmips: Improve BCM6368 device tree
Add brcm,bcm6358-leds node to bcm6368.dtsi
Add reboot support (syscon-reboot as defined in BCM6328)
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: f.fainelli@gmail.com
Cc: jogo@openwrt.org
Cc: cernekee@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Álvaro Fernández Rojas <noltari@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12117/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Álvaro Fernández Rojas [Sun, 17 Jan 2016 10:02:34 +0000 (11:02 +0100)]
MIPS: bmips: Improve BCM6328 device tree
Adds bcm6328-leds node to bcm6328.dtsi
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: jogo@openwrt.org
Cc: cernekee@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Álvaro Fernández Rojas <noltari@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12116/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
James Hogan [Tue, 22 Dec 2015 13:56:39 +0000 (13:56 +0000)]
MIPS: ptrace: Drop cp0_tcstatus from regoffset_table[]
The cp0_tcstatus member of struct pt_regs was removed along with the
rest of SMTC in v3.16, commit
b633648c5ad3 ("MIPS: MT: Remove SMTC
support"), however recent uprobes support in v4.3 added back a reference
to it in the regoffset_table[] in ptrace.c. Remove it.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Fixes:
40e084a506eb ("MIPS: Add uprobes support.")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11920/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Walleij [Tue, 22 Dec 2015 14:41:44 +0000 (15:41 +0100)]
MIPS: TXx9: iocled: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11925/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Walleij [Tue, 22 Dec 2015 14:41:19 +0000 (15:41 +0100)]
MIPS: RB532: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11924/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Walleij [Tue, 22 Dec 2015 14:41:01 +0000 (15:41 +0100)]
MIPS: TXx9: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11923/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Walleij [Tue, 22 Dec 2015 14:40:27 +0000 (15:40 +0100)]
MIPS: ar7: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11922/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Walleij [Tue, 22 Dec 2015 14:40:02 +0000 (15:40 +0100)]
MIPS: Alchemy: Be sure to clamp return value
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linux-gpio@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11921/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Jaedon Shin [Mon, 21 Dec 2015 03:47:35 +0000 (12:47 +0900)]
MIPS: Fix macro typo
Change the CONFIG_MIPS_CMDLINE_EXTEND to CONFIG_MIPS_CMDLINE_DTB_EXTEND
to resolve the EXTEND_WITH_PROM macro.
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Fixes:
2024972ef533 ("MIPS: Make the kernel arguments from dtb available")
Reviewed-by: Alexander Sverdlin <alexander.svedlin@gmail.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11909/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Matt Redfearn [Fri, 18 Dec 2015 12:47:00 +0000 (12:47 +0000)]
MIPS: smp-cps: Ensure secondary cores start with EVA disabled
The kernel currently assumes that a core will start up in legacy mode
using the exception base provided through the CM GCR registers. If a
core has been configured in hardware to start in EVA mode, these
assumptions will fail.
This patch ensures that secondary cores are initialized to meet these
assumptions.
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11907/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Sat, 9 Jan 2016 02:05:31 +0000 (02:05 +0000)]
MIPS: io.h: Define `ioremap_cache'
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12040/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:47 +0000 (05:21 +0000)]
MIPS: math-emu: dsemul: Reduce `get_isa16_mode' clutter
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12178/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:34 +0000 (05:21 +0000)]
MIPS: inst.h: Fix some instruction descriptions
Fix the description of the microMIPS NOP16 encoding or MM_NOP16, which
is not equivalent to the MIPS16 NOP instruction. This is 0x0c00 and
represents the microMIPS `MOVE16 $0, $0' operation, whereas MIPS16 NOP
is encoded as 0x6500, representing `MOVE $0, $16'.
Also fix a typo in `mm_fp0_format' description.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12177/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:13 +0000 (05:21 +0000)]
MIPS: math-emu: dsemul: Correct description of the emulation frame
Remove irrelevant content from the description of the emulation frame in
`mips_dsemul', referring to bare-metal configurations. Update the text,
reflecting the change made with commit
ba3049ed4086 ("MIPS: Switch FPU
emulator trap to BREAK instruction."), where we switched from using an
address error exception on an unaligned access to the use of a BREAK 514
instruction causing a breakpoint exception instead.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12176/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:21:00 +0000 (05:21 +0000)]
MIPS: math-emu: Correct the emulation of microMIPS ADDIUPC instruction
Emulate the microMIPS ADDIUPC instruction directly in `mips_dsemul'. If
executed in the emulation frame, this instruction produces an incorrect
result, because the value of the PC there is not the same as where the
instruction originated.
Reshape code so as to handle all microMIPS cases together.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12175/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:46 +0000 (05:20 +0000)]
MIPS: math-emu: Make microMIPS branch delay slot emulation work
Complement commit
102cedc32a6e ("MIPS: microMIPS: Floating point
support.") which introduced microMIPS FPU emulation, but did not adjust
the encoding of the BREAK instruction used to terminate the branch delay
slot emulation frame. Consequently the execution of any such frame is
indeterminate and, depending on CPU configuration, will result in random
code execution or an offending program being terminated with SIGILL.
This is because the regular MIPS BREAK instruction is encoded with the 0
major and the 0xd minor opcode, however in the microMIPS instruction set
this major/minor opcode pair denotes an encoding reserved for the DSP
ASE. Instead the microMIPS BREAK instruction is encoded with the 0
major and the 0x7 minor opcode.
Use the correct BREAK encoding for microMIPS FPU emulation then.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12174/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:37 +0000 (05:20 +0000)]
MIPS: math-emu: dsemul: Fix ill formatting of microMIPS part
Correct formatting breakage introduced with commit
102cedc32a6e ("MIPS:
microMIPS: Floating point support."), so that further changes to this
code can be consistent.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12173/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Maciej W. Rozycki [Fri, 22 Jan 2016 05:20:26 +0000 (05:20 +0000)]
MIPS: math-emu: Correctly handle NOP emulation
Fix an issue introduced with commit
9ab4471c9f1b ("MIPS: math-emu:
Correct delay-slot exception propagation") where the emulation of a NOP
instruction signals the need to terminate the emulation loop. This in
turn, if the PC has not changed from the entry to the loop, will cause
the kernel to terminate the program with SIGILL.
Consider this program:
static double div(double d)
{
do
d /= 2.0;
while (d > .5);
return d;
}
int main(int argc, char **argv)
{
return div(argc);
}
which gets compiled to the following binary code:
00400490 <main>:
400490:
44840000 mtc1 a0,$f0
400494:
3c020040 lui v0,0x40
400498:
d44207f8 ldc1 $f2,2040(v0)
40049c:
46800021 cvt.d.w $f0,$f0
4004a0:
46220002 mul.d $f0,$f0,$f2
4004a4:
4620103c c.lt.d $f2,$f0
4004a8:
4501fffd bc1t 4004a0 <main+0x10>
4004ac:
00000000 nop
4004b0:
4620000d trunc.w.d $f0,$f0
4004b4:
03e00008 jr ra
4004b8:
44020000 mfc1 v0,$f0
4004bc:
00000000 nop
Where the FPU emulator is used, depending on the number of command-line
arguments this code will either run to completion or terminate with
SIGILL.
If no arguments are specified, then BC1T will not be taken, NOP will not
be emulated and code will complete successfully.
If one argument is specified, then BC1T will be taken once and NOP will
be emulated. At this point the entry PC value will be 0x400498 and the
new PC value, set by `mips_dsemul' will be 0x4004a0, the target of BC1T.
The emulation loop will terminate, but SIGILL will not be issued,
because the PC has changed. The FPU emulator will be entered again and
on the second execution BC1T will not be taken, NOP will not be emulated
and code will complete successfully.
If two or more arguments are specified, then the first execution of BC1T
will proceed as above. Upon reentering the FPU emulator the emulation
loop will continue to BC1T, at which point the branch will be taken and
NOP emulated again. At this point however the entry PC value will be
0x4004a0, the same as the target of BC1T. This will make the emulator
conclude that execution has not advanced and therefore an unsupported
FPU instruction has been encountered, and SIGILL will be sent to the
process.
Fix the problem by extending the internal API of `mips_dsemul', making
it return -1 if no delay slot emulation frame has been made, the
instruction has been handled and execution of the emulation loop needs
to continue as if nothing happened. Remove code from `mips_dsemul' to
reproduce steps made by the emulation loop at the conclusion of each
iteration, as those will be reached normally now. Adjust call sites
accordingly. Document the API.
Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12172/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Huacai Chen [Thu, 21 Jan 2016 13:09:52 +0000 (21:09 +0800)]
MIPS: Fix some missing CONFIG_CPU_MIPSR6 #ifdefs
Commit
be0c37c985eddc4 (MIPS: Rearrange PTE bits into fixed positions.)
defines fixed PTE bits for MIPS R2. Then, commit
d7b631419b3d230a4d383
(MIPS: pgtable-bits: Fix XPA damage to R6 definitions.) adds the MIPS
R6 definitions in the same way as MIPS R2. But some R6 #ifdefs in the
later commit are missing, so in this patch I fix that.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12164/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Huacai Chen [Thu, 21 Jan 2016 13:09:51 +0000 (21:09 +0800)]
MIPS: sync-r4k: reduce skew while synchronization
While synchronization, count register will go backwards for the master.
If synchronise_count_master() runs before synchronise_count_slave(),
skew becomes even more. The skew is very harmful for CPU hotplug (CPU0
do synchronization with CPU1, then CPU0 do synchronization with CPU2
and CPU0's count goes backwards, so it will be out of sync with CPU1).
After the commit
cf9bfe55f24973a8f40e2 (MIPS: Synchronize MIPS count one
CPU at a time), we needn't evaluate count_reference at the beginning of
synchronise_count_master() any more. Thus, we evaluate the initcount (It
seems like count_reference is redundant) in the 2nd loop. Since we write
the count register in the last loop, we don't need additional barriers
(the existing memory barriers are enough).
Moreover, I think we loop 3 times is enough to get a primed instruction
cache, this can also get less skew than looping 5 times.
Comments are also updated in this patch.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/12163/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Linus Torvalds [Sun, 24 Jan 2016 00:00:52 +0000 (16:00 -0800)]
Merge tag 'ntb-4.5' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"A new driver to support AMD NTB, a NTB performance test driver, NTB
bugs fixes, and the ability to recover from running out of DMA
descriptors"
* tag 'ntb-4.5' of git://github.com/jonmason/ntb:
NTB: Fix macro parameter conflict with field name
NTB: Add support for AMD PCI-Express Non-Transparent Bridge
ntb: ntb perf tool
NTB: Address out of DMA descriptor issue with NTB
NTB: Clear property bits in BAR value
NTB: ntb_process_tx error path bug
Linus Torvalds [Sat, 23 Jan 2016 20:24:56 +0000 (12:24 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull final vfs updates from Al Viro:
- The ->i_mutex wrappers (with small prereq in lustre)
- a fix for too early freeing of symlink bodies on shmem (they need to
be RCU-delayed) (-stable fodder)
- followup to dedupe stuff merged this cycle
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: abort dedupe loop if fatal signals are pending
make sure that freeing shmem fast symlinks is RCU-delayed
wrappers for ->i_mutex access
lustre: remove unused declaration
Linus Torvalds [Sat, 23 Jan 2016 19:47:13 +0000 (11:47 -0800)]
Merge tag 'nfs-for-4.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes and cleanups from Trond Myklebust:
"Bugfixes:
- pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn
- pNFS/flexfiles: Improve merging of errors in LAYOUTRETURN
Cleanups:
- NFS: Simplify nfs_request_add_commit_list() arguments"
* tag 'nfs-for-4.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
pNFS/flexfiles: Fix an XDR encoding bug in layoutreturn
NFS: Simplify nfs_request_add_commit_list() arguments
pNFS/flexfiles: Improve merging of errors in LAYOUTRETURN
Linus Torvalds [Sat, 23 Jan 2016 19:13:56 +0000 (11:13 -0800)]
Merge branch 'akpm' (patches from Andrew)
Merge small final update from Andrew Morton:
- DAX feature work: add fsync/msync support
- kfree cleanup, MAINTAINERS update
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
MAINTAINERS: return arch/sh to maintained state, with new maintainers
tree wide: use kvfree() than conditional kfree()/vfree()
dax: never rely on bh.b_dev being set by get_block()
xfs: call dax_pfn_mkwrite() for DAX fsync/msync
ext4: call dax_pfn_mkwrite() for DAX fsync/msync
ext2: call dax_pfn_mkwrite() for DAX fsync/msync
dax: add support for fsync/sync
mm: add find_get_entries_tag()
dax: support dirty DAX entries in radix tree
pmem: add wb_cache_pmem() to the PMEM API
dax: fix conversion of holes to PMDs
dax: fix NULL pointer dereference in __dax_dbg()