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Merge 4.17-rc6 into usb-next 

We want the bug fixes and this resolves the merge issues with the usbip
driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2018-05-21 08:27:15 +02:00
parent baf12d6dde 771c577c23
commit c049ffb35a
491 changed files with 5173 additions and 2238 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/ABI/testing/sysfs-class-cxl
View File

@ -244,3 +244,11 @@ Description: read only
Returns 1 if the psl timebase register is synchronized
with the core timebase register, 0 otherwise.
Users: https://github.com/ibm-capi/libcxl
What: /sys/class/cxl/<card>/tunneled_ops_supported
Date: May 2018
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Returns 1 if tunneled operations are supported in capi mode,
0 otherwise.
Users: https://github.com/ibm-capi/libcxl

2
Documentation/admin-guide/pm/intel_pstate.rst
View File

@ -145,7 +145,7 @@ feature enabled.]
In this mode ``intel_pstate`` registers utilization update callbacks with the
CPU scheduler in order to run a P-state selection algorithm, either
``powersave`` or ``performance``, depending on the ``scaling_cur_freq`` policy
``powersave`` or ``performance``, depending on the ``scaling_governor`` policy
setting in ``sysfs``. The current CPU frequency information to be made
available from the ``scaling_cur_freq`` policy attribute in ``sysfs`` is
periodically updated by those utilization update callbacks too.

2
Documentation/admin-guide/pm/sleep-states.rst
View File

@ -15,7 +15,7 @@ Sleep States That Can Be Supported
==================================
Depending on its configuration and the capabilities of the platform it runs on,
the Linux kernel can support up to four system sleep states, includig
the Linux kernel can support up to four system sleep states, including
hibernation and up to three variants of system suspend. The sleep states that
can be supported by the kernel are listed below.

5
Documentation/device-mapper/thin-provisioning.txt
View File

@ -264,7 +264,10 @@ i) Constructor
data device, but just remove the mapping.
read_only: Don't allow any changes to be made to the pool
metadata.
metadata. This mode is only available after the
thin-pool has been created and first used in full
read/write mode. It cannot be specified on initial
thin-pool creation.
error_if_no_space: Error IOs, instead of queueing, if no space.

1
Documentation/devicetree/bindings/ata/ahci-platform.txt
View File

@ -30,7 +30,6 @@ compatible:
Optional properties:
- dma-coherent : Present if dma operations are coherent
- clocks : a list of phandle + clock specifier pairs
- resets : a list of phandle + reset specifier pairs
- target-supply : regulator for SATA target power
- phys : reference to the SATA PHY node
- phy-names : must be "sata-phy"

2
Documentation/devicetree/bindings/display/panel/panel-common.txt
View File

@ -38,7 +38,7 @@ Display Timings
require specific display timings. The panel-timing subnode expresses those
timings as specified in the timing subnode section of the display timing
bindings defined in
Documentation/devicetree/bindings/display/display-timing.txt.
Documentation/devicetree/bindings/display/panel/display-timing.txt.
Connectivity

1
Documentation/devicetree/bindings/dma/renesas,rcar-dmac.txt
View File

@ -26,6 +26,7 @@ Required Properties:
- "renesas,dmac-r8a7794" (R-Car E2)
- "renesas,dmac-r8a7795" (R-Car H3)
- "renesas,dmac-r8a7796" (R-Car M3-W)
- "renesas,dmac-r8a77965" (R-Car M3-N)
- "renesas,dmac-r8a77970" (R-Car V3M)
- "renesas,dmac-r8a77980" (R-Car V3H)

4
Documentation/devicetree/bindings/net/can/rcar_canfd.txt
View File

@ -5,7 +5,9 @@ Required properties:
- compatible: Must contain one or more of the following:
- "renesas,rcar-gen3-canfd" for R-Car Gen3 compatible controller.
- "renesas,r8a7795-canfd" for R8A7795 (R-Car H3) compatible controller.
- "renesas,r8a7796-canfd" for R8A7796 (R-Car M3) compatible controller.
- "renesas,r8a7796-canfd" for R8A7796 (R-Car M3-W) compatible controller.
- "renesas,r8a77970-canfd" for R8A77970 (R-Car V3M) compatible controller.
- "renesas,r8a77980-canfd" for R8A77980 (R-Car V3H) compatible controller.
When compatible with the generic version, nodes must list the
SoC-specific version corresponding to the platform first, followed by the

9
Documentation/devicetree/bindings/net/marvell-pp2.txt
View File

@ -21,9 +21,10 @@ Required properties:
- main controller clock (for both armada-375-pp2 and armada-7k-pp2)
- GOP clock (for both armada-375-pp2 and armada-7k-pp2)
- MG clock (only for armada-7k-pp2)
- MG Core clock (only for armada-7k-pp2)
- AXI clock (only for armada-7k-pp2)
- clock-names: names of used clocks, must be "pp_clk", "gop_clk", "mg_clk"
and "axi_clk" (the 2 latter only for armada-7k-pp2).
- clock-names: names of used clocks, must be "pp_clk", "gop_clk", "mg_clk",
"mg_core_clk" and "axi_clk" (the 3 latter only for armada-7k-pp2).
The ethernet ports are represented by subnodes. At least one port is
required.
@ -80,8 +81,8 @@ cpm_ethernet: ethernet@0 {
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>,
<&cpm_syscon0 1 5>, <&cpm_syscon0 1 18>;
clock-names = "pp_clk", "gop_clk", "gp_clk", "axi_clk";
<&cpm_syscon0 1 5>, <&cpm_syscon0 1 6>, <&cpm_syscon0 1 18>;
clock-names = "pp_clk", "gop_clk", "mg_clk", "mg_core_clk", "axi_clk";
eth0: eth0 {
interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,

1
Documentation/devicetree/bindings/net/renesas,ravb.txt
View File

@ -18,6 +18,7 @@ Required properties:
- "renesas,etheravb-r8a7795" for the R8A7795 SoC.
- "renesas,etheravb-r8a7796" for the R8A7796 SoC.
- "renesas,etheravb-r8a77965" for the R8A77965 SoC.
- "renesas,etheravb-r8a77970" for the R8A77970 SoC.
- "renesas,etheravb-r8a77980" for the R8A77980 SoC.
- "renesas,etheravb-r8a77995" for the R8A77995 SoC.

6
Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
View File

@ -56,9 +56,9 @@ pins it needs, and how they should be configured, with regard to muxer
configuration, drive strength and pullups. If one of these options is
not set, its actual value will be unspecified.
This driver supports the generic pin multiplexing and configuration
bindings. For details on each properties, you can refer to
./pinctrl-bindings.txt.
Allwinner A1X Pin Controller supports the generic pin multiplexing and
configuration bindings. For details on each properties, you can refer to
./pinctrl-bindings.txt.
Required sub-node properties:
- pins

2
Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
View File

@ -43,6 +43,8 @@ Required properties:
- "renesas,hscif-r8a7795" for R8A7795 (R-Car H3) HSCIF compatible UART.
- "renesas,scif-r8a7796" for R8A7796 (R-Car M3-W) SCIF compatible UART.
- "renesas,hscif-r8a7796" for R8A7796 (R-Car M3-W) HSCIF compatible UART.
- "renesas,scif-r8a77965" for R8A77965 (R-Car M3-N) SCIF compatible UART.
- "renesas,hscif-r8a77965" for R8A77965 (R-Car M3-N) HSCIF compatible UART.
- "renesas,scif-r8a77970" for R8A77970 (R-Car V3M) SCIF compatible UART.
- "renesas,hscif-r8a77970" for R8A77970 (R-Car V3M) HSCIF compatible UART.
- "renesas,scif-r8a77980" for R8A77980 (R-Car V3H) SCIF compatible UART.

1
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -182,6 +182,7 @@ karo Ka-Ro electronics GmbH
keithkoep Keith & Koep GmbH
keymile Keymile GmbH
khadas Khadas
kiebackpeter Kieback & Peter GmbH
kinetic Kinetic Technologies
kingnovel Kingnovel Technology Co., Ltd.
kosagi Sutajio Ko-Usagi PTE Ltd.

8
Documentation/devicetree/overlay-notes.txt
View File

@ -98,6 +98,14 @@ Finally, if you need to remove all overlays in one-go, just call
of_overlay_remove_all() which will remove every single one in the correct
order.
In addition, there is the option to register notifiers that get called on
overlay operations. See of_overlay_notifier_register/unregister and
enum of_overlay_notify_action for details.
Note that a notifier callback is not supposed to store pointers to a device
tree node or its content beyond OF_OVERLAY_POST_REMOVE corresponding to the
respective node it received.
Overlay DTS Format
------------------

6
Documentation/virtual/kvm/cpuid.txt
View File

@ -72,8 +72,8 @@ KVM_FEATURE_CLOCKSOURCE_STABLE_BIT || 24 || host will warn if no guest-side
flag || value || meaning
==================================================================================
KVM_HINTS_DEDICATED || 0 || guest checks this feature bit to
|| || determine if there is vCPU pinning
|| || and there is no vCPU over-commitment,
KVM_HINTS_REALTIME || 0 || guest checks this feature bit to
|| || determine that vCPUs are never
|| || preempted for an unlimited time,
|| || allowing optimizations
----------------------------------------------------------------------------------

20
MAINTAINERS
View File

@ -137,9 +137,9 @@ Maintainers List (try to look for most precise areas first)
-----------------------------------
3C59X NETWORK DRIVER
M: Steffen Klassert <klassert@mathematik.tu-chemnitz.de>
M: Steffen Klassert <klassert@kernel.org>
L: netdev@vger.kernel.org
S: Maintained
S: Odd Fixes
F: Documentation/networking/vortex.txt
F: drivers/net/ethernet/3com/3c59x.c
@ -3691,7 +3691,6 @@ F: drivers/cpufreq/arm_big_little_dt.c
CPU POWER MONITORING SUBSYSTEM
M: Thomas Renninger <trenn@suse.com>
M: Shuah Khan <shuahkh@osg.samsung.com>
M: Shuah Khan <shuah@kernel.org>
L: linux-pm@vger.kernel.org
S: Maintained
@ -4310,7 +4309,7 @@ F: Documentation/driver-api/dma-buf.rst
T: git git://anongit.freedesktop.org/drm/drm-misc
DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
M: Vinod Koul <vinod.koul@intel.com>
M: Vinod Koul <vkoul@kernel.org>
L: dmaengine@vger.kernel.org
Q: https://patchwork.kernel.org/project/linux-dmaengine/list/
S: Maintained
@ -7696,10 +7695,10 @@ F: include/linux/sunrpc/
F: include/uapi/linux/sunrpc/
KERNEL SELFTEST FRAMEWORK
M: Shuah Khan <shuahkh@osg.samsung.com>
M: Shuah Khan <shuah@kernel.org>
L: linux-kselftest@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git
Q: https://patchwork.kernel.org/project/linux-kselftest/list/
S: Maintained
F: tools/testing/selftests/
F: Documentation/dev-tools/kselftest*
@ -9873,7 +9872,7 @@ F: include/linux/platform_data/nxp-nci.h
F: Documentation/devicetree/bindings/net/nfc/
NFS, SUNRPC, AND LOCKD CLIENTS
M: Trond Myklebust <trond.myklebust@primarydata.com>
M: Trond Myklebust <trond.myklebust@hammerspace.com>
M: Anna Schumaker <anna.schumaker@netapp.com>
L: linux-nfs@vger.kernel.org
W: http://client.linux-nfs.org
@ -12223,7 +12222,7 @@ F: Documentation/s390/vfio-ccw.txt
F: include/uapi/linux/vfio_ccw.h
S390 ZCRYPT DRIVER
M: Harald Freudenberger <freude@de.ibm.com>
M: Harald Freudenberger <freude@linux.ibm.com>
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
S: Supported
@ -13267,6 +13266,12 @@ M: Jan-Benedict Glaw <jbglaw@lug-owl.de>
S: Maintained
F: arch/alpha/kernel/srm_env.c
ST STM32 I2C/SMBUS DRIVER
M: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
L: linux-i2c@vger.kernel.org
S: Maintained
F: drivers/i2c/busses/i2c-stm32*
STABLE BRANCH
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: stable@vger.kernel.org
@ -14651,7 +14656,6 @@ F: drivers/usb/common/usb-otg-fsm.c
USB OVER IP DRIVER
M: Valentina Manea <valentina.manea.m@gmail.com>
M: Shuah Khan <shuahkh@osg.samsung.com>
M: Shuah Khan <shuah@kernel.org>
L: linux-usb@vger.kernel.org
S: Maintained

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 17
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc6
NAME = Merciless Moray
# *DOCUMENTATION*

4
arch/Kconfig
View File

@ -464,6 +464,10 @@ config GCC_PLUGIN_LATENT_ENTROPY
config GCC_PLUGIN_STRUCTLEAK
bool "Force initialization of variables containing userspace addresses"
depends on GCC_PLUGINS
# Currently STRUCTLEAK inserts initialization out of live scope of
# variables from KASAN point of view. This leads to KASAN false
# positive reports. Prohibit this combination for now.
depends on !KASAN_EXTRA
help
This plugin zero-initializes any structures containing a
__user attribute. This can prevent some classes of information

8
arch/arm/boot/compressed/Makefile
View File

@ -117,11 +117,9 @@ ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj)
asflags-y := -DZIMAGE
# Supply kernel BSS size to the decompressor via a linker symbol.
KBSS_SZ = $(shell $(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \
perl -e 'while (<>) { \
$$bss_start=hex($$1) if /^([[:xdigit:]]+) B __bss_start$$/; \
$$bss_end=hex($$1) if /^([[:xdigit:]]+) B __bss_stop$$/; \
}; printf "%d\n", $$bss_end - $$bss_start;')
KBSS_SZ = $(shell echo $$(($$($(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \
sed -n -e 's/^\([^ ]*\) [AB] __bss_start$$/-0x\1/p' \
-e 's/^\([^ ]*\) [AB] __bss_stop$$/+0x\1/p') )) )
LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
# Supply ZRELADDR to the decompressor via a linker symbol.
ifneq ($(CONFIG_AUTO_ZRELADDR),y)

20
arch/arm/boot/compressed/head.S
View File

@ -29,19 +29,19 @@
#if defined(CONFIG_DEBUG_ICEDCC)
#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
.macro loadsp, rb, tmp
.macro loadsp, rb, tmp1, tmp2
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c0, c5, 0
.endm
#elif defined(CONFIG_CPU_XSCALE)
.macro loadsp, rb, tmp
.macro loadsp, rb, tmp1, tmp2
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c8, c0, 0
.endm
#else
.macro loadsp, rb, tmp
.macro loadsp, rb, tmp1, tmp2
.endm
.macro writeb, ch, rb
mcr p14, 0, \ch, c1, c0, 0
@ -57,7 +57,7 @@
.endm
#if defined(CONFIG_ARCH_SA1100)
.macro loadsp, rb, tmp
.macro loadsp, rb, tmp1, tmp2
mov \rb, #0x80000000 @ physical base address
#ifdef CONFIG_DEBUG_LL_SER3
add \rb, \rb, #0x00050000 @ Ser3
@ -66,8 +66,8 @@
#endif
.endm
#else
.macro loadsp, rb, tmp
addruart \rb, \tmp
.macro loadsp, rb, tmp1, tmp2
addruart \rb, \tmp1, \tmp2
.endm
#endif
#endif
@ -561,8 +561,6 @@ not_relocated: mov r0, #0
bl decompress_kernel
bl cache_clean_flush
bl cache_off
mov r1, r7 @ restore architecture number
mov r2, r8 @ restore atags pointer
#ifdef CONFIG_ARM_VIRT_EXT
mrs r0, spsr @ Get saved CPU boot mode
@ -1297,7 +1295,7 @@ phex: adr r3, phexbuf
b 1b
@ puts corrupts {r0, r1, r2, r3}
puts: loadsp r3, r1
puts: loadsp r3, r2, r1
1: ldrb r2, [r0], #1
teq r2, #0
moveq pc, lr
@ -1314,8 +1312,8 @@ puts: loadsp r3, r1
@ putc corrupts {r0, r1, r2, r3}
putc:
mov r2, r0
loadsp r3, r1, r0
mov r0, #0
loadsp r3, r1
b 2b
@ memdump corrupts {r0, r1, r2, r3, r10, r11, r12, lr}
@ -1365,6 +1363,8 @@ __hyp_reentry_vectors:
__enter_kernel:
mov r0, #0 @ must be 0
mov r1, r7 @ restore architecture number
mov r2, r8 @ restore atags pointer
ARM( mov pc, r4 ) @ call kernel
M_CLASS( add r4, r4, #1 ) @ enter in Thumb mode for M class
THUMB( bx r4 ) @ entry point is always ARM for A/R classes

2
arch/arm/boot/dts/bcm-cygnus.dtsi
View File

@ -69,7 +69,7 @@
timer@20200 {
compatible = "arm,cortex-a9-global-timer";
reg = <0x20200 0x100>;
interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_PPI 11 IRQ_TYPE_EDGE_RISING>;
clocks = <&periph_clk>;
};

4
arch/arm/boot/dts/da850-lcdk.dts
View File

@ -21,8 +21,8 @@
stdout-path = "serial2:115200n8";
};
memory {
device_type = "memory";
memory@c0000000 {
/* 128 MB DDR2 SDRAM @ 0xc0000000 */
reg = <0xc0000000 0x08000000>;
};

13
arch/arm/boot/dts/da850.dtsi
View File

@ -7,10 +7,19 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include "skeleton.dtsi"
#include <dt-bindings/interrupt-controller/irq.h>
/ {
#address-cells = <1>;
#size-cells = <1>;
chosen { };
aliases { };
memory@c0000000 {
device_type = "memory";
reg = <0xc0000000 0x0>;
};
arm {
#address-cells = <1>;
#size-cells = <1>;
@ -46,8 +55,6 @@
pmx_core: pinmux@14120 {
compatible = "pinctrl-single";
reg = <0x14120 0x50>;
#address-cells = <1>;
#size-cells = <0>;
#pinctrl-cells = <2>;
pinctrl-single,bit-per-mux;
pinctrl-single,register-width = <32>;

2
arch/arm/boot/dts/dm8148-evm.dts
View File

@ -10,7 +10,7 @@
/ {
model = "DM8148 EVM";
compatible = "ti,dm8148-evm", "ti,dm8148";
compatible = "ti,dm8148-evm", "ti,dm8148", "ti,dm814";
memory@80000000 {
device_type = "memory";

2
arch/arm/boot/dts/dm8148-t410.dts
View File

@ -9,7 +9,7 @@
/ {
model = "HP t410 Smart Zero Client";
compatible = "hp,t410", "ti,dm8148";
compatible = "hp,t410", "ti,dm8148", "ti,dm814";
memory@80000000 {
device_type = "memory";

2
arch/arm/boot/dts/dm8168-evm.dts
View File

@ -10,7 +10,7 @@
/ {
model = "DM8168 EVM";
compatible = "ti,dm8168-evm", "ti,dm8168";
compatible = "ti,dm8168-evm", "ti,dm8168", "ti,dm816";
memory@80000000 {
device_type = "memory";

2
arch/arm/boot/dts/dra62x-j5eco-evm.dts
View File

@ -10,7 +10,7 @@
/ {
model = "DRA62x J5 Eco EVM";
compatible = "ti,dra62x-j5eco-evm", "ti,dra62x", "ti,dm8148";
compatible = "ti,dra62x-j5eco-evm", "ti,dra62x", "ti,dm8148", "ti,dm814";
memory@80000000 {
device_type = "memory";

4
arch/arm/boot/dts/imx35.dtsi
View File

@ -303,7 +303,7 @@
};
can1: can@53fe4000 {
compatible = "fsl,imx35-flexcan";
compatible = "fsl,imx35-flexcan", "fsl,imx25-flexcan";
reg = <0x53fe4000 0x1000>;
clocks = <&clks 33>, <&clks 33>;
clock-names = "ipg", "per";
@ -312,7 +312,7 @@
};
can2: can@53fe8000 {
compatible = "fsl,imx35-flexcan";
compatible = "fsl,imx35-flexcan", "fsl,imx25-flexcan";
reg = <0x53fe8000 0x1000>;
clocks = <&clks 34>, <&clks 34>;
clock-names = "ipg", "per";

6
arch/arm/boot/dts/imx51-zii-rdu1.dts
View File

@ -523,7 +523,7 @@
};
touchscreen@20 {
compatible = "syna,rmi4_i2c";
compatible = "syna,rmi4-i2c";
reg = <0x20>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_ts>;
@ -541,8 +541,8 @@
rmi4-f11@11 {
reg = <0x11>;
touch-inverted-y;
touch-swapped-x-y;
touchscreen-inverted-y;
touchscreen-swapped-x-y;
syna,sensor-type = <1>;
};
};

4
arch/arm/boot/dts/imx53.dtsi
View File

@ -551,7 +551,7 @@
};
can1: can@53fc8000 {
compatible = "fsl,imx53-flexcan";
compatible = "fsl,imx53-flexcan", "fsl,imx25-flexcan";
reg = <0x53fc8000 0x4000>;
interrupts = <82>;
clocks = <&clks IMX5_CLK_CAN1_IPG_GATE>,
@ -561,7 +561,7 @@
};
can2: can@53fcc000 {
compatible = "fsl,imx53-flexcan";
compatible = "fsl,imx53-flexcan", "fsl,imx25-flexcan";
reg = <0x53fcc000 0x4000>;
interrupts = <83>;
clocks = <&clks IMX5_CLK_CAN2_IPG_GATE>,

1
arch/arm/boot/dts/imx7s.dtsi
View File

@ -868,6 +868,7 @@
crypto: caam@30900000 {
compatible = "fsl,sec-v4.0";
fsl,sec-era = <8>;
#address-cells = <1>;
#size-cells = <1>;
reg = <0x30900000 0x40000>;

11
arch/arm/boot/dts/logicpd-som-lv.dtsi
View File

@ -26,7 +26,7 @@
gpio = <&gpio1 3 0>; /* gpio_3 */
startup-delay-us = <70000>;
enable-active-high;
vin-supply = <&vmmc2>;
vin-supply = <&vaux3>;
};
/* HS USB Host PHY on PORT 1 */
@ -82,6 +82,7 @@
twl_audio: audio {
compatible = "ti,twl4030-audio";
codec {
ti,hs_extmute_gpio = <&gpio2 25 GPIO_ACTIVE_HIGH>;
};
};
};
@ -199,6 +200,7 @@
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x21ba, PIN_INPUT | MUX_MODE0) /* i2c1_scl.i2c1_scl */
OMAP3_CORE1_IOPAD(0x21bc, PIN_INPUT | MUX_MODE0) /* i2c1_sda.i2c1_sda */
OMAP3_CORE1_IOPAD(0x20ba, PIN_OUTPUT | MUX_MODE4) /* gpmc_ncs6.gpio_57 */
>;
};
};
@ -213,7 +215,7 @@
};
wl127x_gpio: pinmux_wl127x_gpio_pin {
pinctrl-single,pins = <
OMAP3_WKUP_IOPAD(0x2a0c, PIN_INPUT | MUX_MODE4) /* sys_boot0.gpio_2 */
OMAP3_WKUP_IOPAD(0x2a0a, PIN_INPUT | MUX_MODE4) /* sys_boot0.gpio_2 */
OMAP3_WKUP_IOPAD(0x2a0c, PIN_OUTPUT | MUX_MODE4) /* sys_boot1.gpio_3 */
>;
};
@ -260,6 +262,11 @@
#include "twl4030.dtsi"
#include "twl4030_omap3.dtsi"
&vaux3 {
regulator-min-microvolt = <2800000>;
regulator-max-microvolt = <2800000>;
};
&twl {
twl_power: power {
compatible = "ti,twl4030-power-idle-osc-off", "ti,twl4030-power-idle";

22
arch/arm/boot/dts/r8a7790-lager.dts
View File

@ -379,7 +379,7 @@
port@0 {
reg = <0>;
adv7511_in: endpoint {
remote-endpoint = <&du_out_lvds0>;
remote-endpoint = <&lvds0_out>;
};
};
@ -467,10 +467,8 @@
status = "okay";
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 722>,
<&cpg CPG_MOD 726>, <&cpg CPG_MOD 725>,
<&x13_clk>, <&x2_clk>;
clock-names = "du.0", "du.1", "du.2", "lvds.0", "lvds.1",
"dclkin.0", "dclkin.1";
clock-names = "du.0", "du.1", "du.2", "dclkin.0", "dclkin.1";
ports {
port@0 {
@ -478,12 +476,26 @@
remote-endpoint = <&adv7123_in>;
};
};
};
};
&lvds0 {
status = "okay";
ports {
port@1 {
endpoint {
remote-endpoint = <&adv7511_in>;
};
};
port@2 {
};
};
&lvds1 {
status = "okay";
ports {
port@1 {
lvds_connector: endpoint {
};
};

65
arch/arm/boot/dts/r8a7790.dtsi
View File

@ -1627,18 +1627,13 @@
du: display@feb00000 {
compatible = "renesas,du-r8a7790";
reg = <0 0xfeb00000 0 0x70000>,
<0 0xfeb90000 0 0x1c>,
<0 0xfeb94000 0 0x1c>;
reg-names = "du", "lvds.0", "lvds.1";
reg = <0 0xfeb00000 0 0x70000>;
interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>,
<&cpg CPG_MOD 722>, <&cpg CPG_MOD 726>,
<&cpg CPG_MOD 725>;
clock-names = "du.0", "du.1", "du.2", "lvds.0",
"lvds.1";
<&cpg CPG_MOD 722>;
clock-names = "du.0", "du.1", "du.2";
status = "disabled";
ports {
@ -1653,11 +1648,65 @@
port@1 {
reg = <1>;
du_out_lvds0: endpoint {
remote-endpoint = <&lvds0_in>;
};
};
port@2 {
reg = <2>;
du_out_lvds1: endpoint {
remote-endpoint = <&lvds1_in>;
};
};
};
};
lvds0: lvds@feb90000 {
compatible = "renesas,r8a7790-lvds";
reg = <0 0xfeb90000 0 0x1c>;
clocks = <&cpg CPG_MOD 726>;
power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
resets = <&cpg 726>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds0_in: endpoint {
remote-endpoint = <&du_out_lvds0>;
};
};
port@1 {
reg = <1>;
lvds0_out: endpoint {
};
};
};
};
lvds1: lvds@feb94000 {
compatible = "renesas,r8a7790-lvds";
reg = <0 0xfeb94000 0 0x1c>;
clocks = <&cpg CPG_MOD 725>;
power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
resets = <&cpg 725>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds1_in: endpoint {
remote-endpoint = <&du_out_lvds1>;
};
};
port@1 {
reg = <1>;
lvds1_out: endpoint {
};
};
};

12
arch/arm/boot/dts/r8a7791-koelsch.dts
View File

@ -468,10 +468,9 @@
pinctrl-names = "default";
status = "okay";
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 726>,
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>,
<&x13_clk>, <&x2_clk>;
clock-names = "du.0", "du.1", "lvds.0",
"dclkin.0", "dclkin.1";
clock-names = "du.0", "du.1", "dclkin.0", "dclkin.1";
ports {
port@0 {
@ -479,6 +478,13 @@
remote-endpoint = <&adv7511_in>;
};
};
};
};
&lvds0 {
status = "okay";
ports {
port@1 {
lvds_connector: endpoint {
};

16
arch/arm/boot/dts/r8a7791-porter.dts
View File

@ -441,10 +441,9 @@
pinctrl-names = "default";
status = "okay";
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 726>,
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>,
<&x3_clk>, <&x16_clk>;
clock-names = "du.0", "du.1", "lvds.0",
"dclkin.0", "dclkin.1";
clock-names = "du.0", "du.1", "dclkin.0", "dclkin.1";
ports {
port@0 {
@ -455,6 +454,17 @@
};
};
&lvds0 {
status = "okay";
ports {
port@1 {
lvds_connector: endpoint {
};
};
};
};
&rcar_sound {
pinctrl-0 = <&ssi_pins &audio_clk_pins>;
pinctrl-names = "default";

36
arch/arm/boot/dts/r8a7791.dtsi
View File

@ -1633,15 +1633,12 @@
du: display@feb00000 {
compatible = "renesas,du-r8a7791";
reg = <0 0xfeb00000 0 0x40000>,
<0 0xfeb90000 0 0x1c>;
reg-names = "du", "lvds.0";
reg = <0 0xfeb00000 0 0x40000>;
interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 724>,
<&cpg CPG_MOD 723>,
<&cpg CPG_MOD 726>;
clock-names = "du.0", "du.1", "lvds.0";
<&cpg CPG_MOD 723>;
clock-names = "du.0", "du.1";
status = "disabled";
ports {
@ -1656,6 +1653,33 @@
port@1 {
reg = <1>;
du_out_lvds0: endpoint {
remote-endpoint = <&lvds0_in>;
};
};
};
};
lvds0: lvds@feb90000 {
compatible = "renesas,r8a7791-lvds";
reg = <0 0xfeb90000 0 0x1c>;
clocks = <&cpg CPG_MOD 726>;
power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
resets = <&cpg 726>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds0_in: endpoint {
remote-endpoint = <&du_out_lvds0>;
};
};
port@1 {
reg = <1>;
lvds0_out: endpoint {
};
};
};

10
arch/arm/boot/dts/r8a7793-gose.dts
View File

@ -447,10 +447,9 @@
pinctrl-names = "default";
status = "okay";
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>, <&cpg CPG_MOD 726>,
clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>,
<&x13_clk>, <&x2_clk>;
clock-names = "du.0", "du.1", "lvds.0",
"dclkin.0", "dclkin.1";
clock-names = "du.0", "du.1", "dclkin.0", "dclkin.1";
ports {
port@0 {
@ -458,6 +457,11 @@
remote-endpoint = <&adv7511_in>;
};
};
};
};
&lvds0 {
ports {
port@1 {
lvds_connector: endpoint {
};

37
arch/arm/boot/dts/r8a7793.dtsi
View File

@ -1292,15 +1292,12 @@
du: display@feb00000 {
compatible = "renesas,du-r8a7793";
reg = <0 0xfeb00000 0 0x40000>,
<0 0xfeb90000 0 0x1c>;
reg-names = "du", "lvds.0";
reg = <0 0xfeb00000 0 0x40000>;
interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cpg CPG_MOD 724>,
<&cpg CPG_MOD 723>,
<&cpg CPG_MOD 726>;
clock-names = "du.0", "du.1", "lvds.0";
<&cpg CPG_MOD 723>;
clock-names = "du.0", "du.1";
status = "disabled";
ports {
@ -1315,6 +1312,34 @@
port@1 {
reg = <1>;
du_out_lvds0: endpoint {
remote-endpoint = <&lvds0_in>;
};
};
};
};
lvds0: lvds@feb90000 {
compatible = "renesas,r8a7793-lvds";
reg = <0 0xfeb90000 0 0x1c>;
clocks = <&cpg CPG_MOD 726>;
power-domains = <&sysc R8A7793_PD_ALWAYS_ON>;
resets = <&cpg 726>;
status = "disabled";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
lvds0_in: endpoint {
remote-endpoint = <&du_out_lvds0>;
};
};
port@1 {
reg = <1>;
lvds0_out: endpoint {
};
};
};

2
arch/arm/boot/dts/tegra20.dtsi
View File

@ -741,7 +741,7 @@
phy_type = "ulpi";
clocks = <&tegra_car TEGRA20_CLK_USB2>,
<&tegra_car TEGRA20_CLK_PLL_U>,
<&tegra_car TEGRA20_CLK_PLL_P_OUT4>;
<&tegra_car TEGRA20_CLK_CDEV2>;
clock-names = "reg", "pll_u", "ulpi-link";
resets = <&tegra_car 58>, <&tegra_car 22>;
reset-names = "usb", "utmi-pads";

10
arch/arm/include/asm/assembler.h
View File

@ -536,4 +536,14 @@ THUMB( orr \reg , \reg , #PSR_T_BIT )
#endif
.endm
#ifdef CONFIG_KPROBES
#define _ASM_NOKPROBE(entry) \
.pushsection "_kprobe_blacklist", "aw" ; \
.balign 4 ; \
.long entry; \
.popsection
#else
#define _ASM_NOKPROBE(entry)
#endif
#endif /* __ASM_ASSEMBLER_H__ */

16
arch/arm/include/asm/kvm_mmu.h
View File

@ -309,6 +309,22 @@ static inline unsigned int kvm_get_vmid_bits(void)
return 8;
}
/*
* We are not in the kvm->srcu critical section most of the time, so we take
* the SRCU read lock here. Since we copy the data from the user page, we
* can immediately drop the lock again.
*/
static inline int kvm_read_guest_lock(struct kvm *kvm,
gpa_t gpa, void *data, unsigned long len)
{
int srcu_idx = srcu_read_lock(&kvm->srcu);
int ret = kvm_read_guest(kvm, gpa, data, len);
srcu_read_unlock(&kvm->srcu, srcu_idx);
return ret;
}
static inline void *kvm_get_hyp_vector(void)
{
return kvm_ksym_ref(__kvm_hyp_vector);

13
arch/arm/include/uapi/asm/siginfo.h
View File

@ -1,13 +0,0 @@
#ifndef __ASM_SIGINFO_H
#define __ASM_SIGINFO_H
#include <asm-generic/siginfo.h>
/*
* SIGFPE si_codes
*/
#ifdef __KERNEL__
#define FPE_FIXME 0 /* Broken dup of SI_USER */
#endif /* __KERNEL__ */
#endif

36
arch/arm/kernel/machine_kexec.c
View File

@ -83,7 +83,7 @@ void machine_crash_nonpanic_core(void *unused)
{
struct pt_regs regs;
crash_setup_regs(&regs, NULL);
crash_setup_regs(&regs, get_irq_regs());
printk(KERN_DEBUG "CPU %u will stop doing anything useful since another CPU has crashed\n",
smp_processor_id());
crash_save_cpu(&regs, smp_processor_id());
@ -95,6 +95,27 @@ void machine_crash_nonpanic_core(void *unused)
cpu_relax();
}
void crash_smp_send_stop(void)
{
static int cpus_stopped;
unsigned long msecs;
if (cpus_stopped)
return;
atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
smp_call_function(machine_crash_nonpanic_core, NULL, false);
msecs = 1000; /* Wait at most a second for the other cpus to stop */
while ((atomic_read(&waiting_for_crash_ipi) > 0) && msecs) {
mdelay(1);
msecs--;
}
if (atomic_read(&waiting_for_crash_ipi) > 0)
pr_warn("Non-crashing CPUs did not react to IPI\n");
cpus_stopped = 1;
}
static void machine_kexec_mask_interrupts(void)
{
unsigned int i;
@ -120,19 +141,8 @@ static void machine_kexec_mask_interrupts(void)
void machine_crash_shutdown(struct pt_regs *regs)
{
unsigned long msecs;
local_irq_disable();
atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
smp_call_function(machine_crash_nonpanic_core, NULL, false);
msecs = 1000; /* Wait at most a second for the other cpus to stop */
while ((atomic_read(&waiting_for_crash_ipi) > 0) && msecs) {
mdelay(1);
msecs--;
}
if (atomic_read(&waiting_for_crash_ipi) > 0)
pr_warn("Non-crashing CPUs did not react to IPI\n");
crash_smp_send_stop();
crash_save_cpu(regs, smp_processor_id());
machine_kexec_mask_interrupts();

5
arch/arm/kernel/traps.c
View File

@ -19,6 +19,7 @@
#include <linux/uaccess.h>
#include <linux/hardirq.h>
#include <linux/kdebug.h>
#include <linux/kprobes.h>
#include <linux/module.h>
#include <linux/kexec.h>
#include <linux/bug.h>
@ -417,7 +418,8 @@ void unregister_undef_hook(struct undef_hook *hook)
raw_spin_unlock_irqrestore(&undef_lock, flags);
}
static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
static nokprobe_inline
int call_undef_hook(struct pt_regs *regs, unsigned int instr)
{
struct undef_hook *hook;
unsigned long flags;
@ -490,6 +492,7 @@ die_sig:
arm_notify_die("Oops - undefined instruction", regs, &info, 0, 6);
}
NOKPROBE_SYMBOL(do_undefinstr)
/*
* Handle FIQ similarly to NMI on x86 systems.

10
arch/arm/lib/getuser.S
View File

@ -38,6 +38,7 @@ ENTRY(__get_user_1)
mov r0, #0
ret lr
ENDPROC(__get_user_1)
_ASM_NOKPROBE(__get_user_1)
ENTRY(__get_user_2)
check_uaccess r0, 2, r1, r2, __get_user_bad
@ -58,6 +59,7 @@ rb .req r0
mov r0, #0
ret lr
ENDPROC(__get_user_2)
_ASM_NOKPROBE(__get_user_2)
ENTRY(__get_user_4)
check_uaccess r0, 4, r1, r2, __get_user_bad
@ -65,6 +67,7 @@ ENTRY(__get_user_4)
mov r0, #0
ret lr
ENDPROC(__get_user_4)
_ASM_NOKPROBE(__get_user_4)
ENTRY(__get_user_8)
check_uaccess r0, 8, r1, r2, __get_user_bad8
@ -78,6 +81,7 @@ ENTRY(__get_user_8)
mov r0, #0
ret lr
ENDPROC(__get_user_8)
_ASM_NOKPROBE(__get_user_8)
#ifdef __ARMEB__
ENTRY(__get_user_32t_8)
@ -91,6 +95,7 @@ ENTRY(__get_user_32t_8)
mov r0, #0
ret lr
ENDPROC(__get_user_32t_8)
_ASM_NOKPROBE(__get_user_32t_8)
ENTRY(__get_user_64t_1)
check_uaccess r0, 1, r1, r2, __get_user_bad8
@ -98,6 +103,7 @@ ENTRY(__get_user_64t_1)
mov r0, #0
ret lr
ENDPROC(__get_user_64t_1)
_ASM_NOKPROBE(__get_user_64t_1)
ENTRY(__get_user_64t_2)
check_uaccess r0, 2, r1, r2, __get_user_bad8
@ -114,6 +120,7 @@ rb .req r0
mov r0, #0
ret lr
ENDPROC(__get_user_64t_2)
_ASM_NOKPROBE(__get_user_64t_2)
ENTRY(__get_user_64t_4)
check_uaccess r0, 4, r1, r2, __get_user_bad8
@ -121,6 +128,7 @@ ENTRY(__get_user_64t_4)
mov r0, #0
ret lr
ENDPROC(__get_user_64t_4)
_ASM_NOKPROBE(__get_user_64t_4)
#endif
__get_user_bad8:
@ -131,6 +139,8 @@ __get_user_bad:
ret lr
ENDPROC(__get_user_bad)
ENDPROC(__get_user_bad8)
_ASM_NOKPROBE(__get_user_bad)
_ASM_NOKPROBE(__get_user_bad8)
.pushsection __ex_table, "a"
.long 1b, __get_user_bad

9
arch/arm/mach-davinci/board-da830-evm.c
View File

@ -205,12 +205,17 @@ static const short da830_evm_mmc_sd_pins[] = {
-1
};
#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
#define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2)
static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0",
.table = {
/* gpio chip 1 contains gpio range 32-63 */
GPIO_LOOKUP("davinci_gpio.1", 2, "cd", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.1", 1, "wp", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA830_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW),
},
};

9
arch/arm/mach-davinci/board-da850-evm.c
View File

@ -763,12 +763,17 @@ static const short da850_evm_mcasp_pins[] __initconst = {
-1
};
#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0",
.table = {
/* gpio chip 2 contains gpio range 64-95 */
GPIO_LOOKUP("davinci_gpio.2", 0, "cd", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.2", 1, "wp", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW),
},
};

15
arch/arm/mach-davinci/board-dm355-evm.c
View File

@ -19,6 +19,7 @@
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/clk.h>
#include <linux/dm9000.h>
#include <linux/videodev2.h>
#include <media/i2c/tvp514x.h>
#include <linux/spi/spi.h>
@ -109,12 +110,15 @@ static struct platform_device davinci_nand_device = {
},
};
#define DM355_I2C_SDA_PIN GPIO_TO_PIN(0, 15)
#define DM355_I2C_SCL_PIN GPIO_TO_PIN(0, 14)
static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
.dev_id = "i2c_davinci",
.dev_id = "i2c_davinci.1",
.table = {
GPIO_LOOKUP("davinci_gpio", 15, "sda",
GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SDA_PIN, "sda",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
GPIO_LOOKUP("davinci_gpio", 14, "scl",
GPIO_LOOKUP("davinci_gpio.0", DM355_I2C_SCL_PIN, "scl",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
},
};
@ -179,11 +183,16 @@ static struct resource dm355evm_dm9000_rsrc[] = {
},
};
static struct dm9000_plat_data dm335evm_dm9000_platdata;
static struct platform_device dm355evm_dm9000 = {
.name = "dm9000",
.id = -1,
.resource = dm355evm_dm9000_rsrc,
.num_resources = ARRAY_SIZE(dm355evm_dm9000_rsrc),
.dev = {
.platform_data = &dm335evm_dm9000_platdata,
},
};
static struct tvp514x_platform_data tvp5146_pdata = {

10
arch/arm/mach-davinci/board-dm644x-evm.c
View File

@ -17,6 +17,7 @@
#include <linux/i2c.h>
#include <linux/platform_data/pcf857x.h>
#include <linux/platform_data/at24.h>
#include <linux/platform_data/gpio-davinci.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/partitions.h>
@ -596,12 +597,15 @@ static struct i2c_board_info __initdata i2c_info[] = {
},
};
#define DM644X_I2C_SDA_PIN GPIO_TO_PIN(2, 12)
#define DM644X_I2C_SCL_PIN GPIO_TO_PIN(2, 11)
static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
.dev_id = "i2c_davinci",
.dev_id = "i2c_davinci.1",
.table = {
GPIO_LOOKUP("davinci_gpio", 44, "sda",
GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SDA_PIN, "sda",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
GPIO_LOOKUP("davinci_gpio", 43, "scl",
GPIO_LOOKUP("davinci_gpio.0", DM644X_I2C_SCL_PIN, "scl",
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
},
};

5
arch/arm/mach-davinci/board-dm646x-evm.c
View File

@ -532,11 +532,12 @@ static struct vpif_display_config dm646x_vpif_display_config = {
.set_clock = set_vpif_clock,
.subdevinfo = dm646x_vpif_subdev,
.subdev_count = ARRAY_SIZE(dm646x_vpif_subdev),
.i2c_adapter_id = 1,
.chan_config[0] = {
.outputs = dm6467_ch0_outputs,
.output_count = ARRAY_SIZE(dm6467_ch0_outputs),
},
.card_name = "DM646x EVM",
.card_name = "DM646x EVM Video Display",
};
/**
@ -674,6 +675,7 @@ static struct vpif_capture_config dm646x_vpif_capture_cfg = {
.setup_input_channel_mode = setup_vpif_input_channel_mode,
.subdev_info = vpif_capture_sdev_info,
.subdev_count = ARRAY_SIZE(vpif_capture_sdev_info),
.i2c_adapter_id = 1,
.chan_config[0] = {
.inputs = dm6467_ch0_inputs,
.input_count = ARRAY_SIZE(dm6467_ch0_inputs),
@ -694,6 +696,7 @@ static struct vpif_capture_config dm646x_vpif_capture_cfg = {
.fid_pol = 0,
},
},
.card_name = "DM646x EVM Video Capture",
};
static void __init evm_init_video(void)

10
arch/arm/mach-davinci/board-omapl138-hawk.c
View File

@ -123,12 +123,16 @@ static const short hawk_mmcsd0_pins[] = {
-1
};
#define DA850_HAWK_MMCSD_CD_PIN GPIO_TO_PIN(3, 12)
#define DA850_HAWK_MMCSD_WP_PIN GPIO_TO_PIN(3, 13)
static struct gpiod_lookup_table mmc_gpios_table = {
.dev_id = "da830-mmc.0",
.table = {
/* CD: gpio3_12: gpio60: chip 1 contains gpio range 32-63*/
GPIO_LOOKUP("davinci_gpio.0", 28, "cd", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", 29, "wp", GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_CD_PIN, "cd",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP("davinci_gpio.0", DA850_HAWK_MMCSD_WP_PIN, "wp",
GPIO_ACTIVE_LOW),
},
};

3
arch/arm/mach-davinci/dm646x.c
View File

@ -488,7 +488,8 @@ static u8 dm646x_default_priorities[DAVINCI_N_AINTC_IRQ] = {
[IRQ_DM646X_MCASP0TXINT] = 7,
[IRQ_DM646X_MCASP0RXINT] = 7,
[IRQ_DM646X_RESERVED_3] = 7,
[IRQ_DM646X_MCASP1TXINT] = 7, /* clockevent */
[IRQ_DM646X_MCASP1TXINT] = 7,
[IRQ_TINT0_TINT12] = 7, /* clockevent */
[IRQ_TINT0_TINT34] = 7, /* clocksource */
[IRQ_TINT1_TINT12] = 7, /* DSP timer */
[IRQ_TINT1_TINT34] = 7, /* system tick */

1
arch/arm/mach-keystone/pm_domain.c
View File

@ -29,6 +29,7 @@ static struct dev_pm_domain keystone_pm_domain = {
static struct pm_clk_notifier_block platform_domain_notifier = {
.pm_domain = &keystone_pm_domain,
.con_ids = { NULL },
};
static const struct of_device_id of_keystone_table[] = {

26
arch/arm/mach-omap1/ams-delta-fiq.c
View File

@ -58,22 +58,24 @@ static irqreturn_t deferred_fiq(int irq, void *dev_id)
irq_num = gpio_to_irq(gpio);
fiq_count = fiq_buffer[FIQ_CNT_INT_00 + gpio];
while (irq_counter[gpio] < fiq_count) {
if (gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) {
struct irq_data *d = irq_get_irq_data(irq_num);
if (irq_counter[gpio] < fiq_count &&
gpio != AMS_DELTA_GPIO_PIN_KEYBRD_CLK) {
struct irq_data *d = irq_get_irq_data(irq_num);
/*
* It looks like handle_edge_irq() that
* OMAP GPIO edge interrupts default to,
* expects interrupt already unmasked.
*/
if (irq_chip && irq_chip->irq_unmask)
/*
* handle_simple_irq() that OMAP GPIO edge
* interrupts default to since commit 80ac93c27441
* requires interrupt already acked and unmasked.
*/
if (irq_chip) {
if (irq_chip->irq_ack)
irq_chip->irq_ack(d);
if (irq_chip->irq_unmask)
irq_chip->irq_unmask(d);
}
generic_handle_irq(irq_num);
irq_counter[gpio]++;
}
for (; irq_counter[gpio] < fiq_count; irq_counter[gpio]++)
generic_handle_irq(irq_num);
}
return IRQ_HANDLED;
}

4
arch/arm/mach-omap2/powerdomain.c
View File

@ -188,7 +188,7 @@ static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag)
((prev & OMAP_POWERSTATE_MASK) << 0));
trace_power_domain_target_rcuidle(pwrdm->name,
trace_state,
smp_processor_id());
raw_smp_processor_id());
}
break;
default:
@ -518,7 +518,7 @@ int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst)
if (arch_pwrdm && arch_pwrdm->pwrdm_set_next_pwrst) {
/* Trace the pwrdm desired target state */
trace_power_domain_target_rcuidle(pwrdm->name, pwrst,
smp_processor_id());
raw_smp_processor_id());
/* Program the pwrdm desired target state */
ret = arch_pwrdm->pwrdm_set_next_pwrst(pwrdm, pwrst);
}

4
arch/arm/probes/kprobes/opt-arm.c
View File

@ -165,13 +165,14 @@ optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
{
unsigned long flags;
struct kprobe *p = &op->kp;
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
struct kprobe_ctlblk *kcb;
/* Save skipped registers */
regs->ARM_pc = (unsigned long)op->kp.addr;
regs->ARM_ORIG_r0 = ~0UL;
local_irq_save(flags);
kcb = get_kprobe_ctlblk();
if (kprobe_running()) {
kprobes_inc_nmissed_count(&op->kp);
@ -191,6 +192,7 @@ optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
local_irq_restore(flags);
}
NOKPROBE_SYMBOL(optimized_callback)
int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, struct kprobe *orig)
{

2
arch/arm/vfp/vfpmodule.c
View File

@ -257,7 +257,7 @@ static void vfp_raise_exceptions(u32 exceptions, u32 inst, u32 fpscr, struct pt_
if (exceptions == VFP_EXCEPTION_ERROR) {
vfp_panic("unhandled bounce", inst);
vfp_raise_sigfpe(FPE_FIXME, regs);
vfp_raise_sigfpe(FPE_FLTINV, regs);
return;
}

2
arch/arm64/boot/dts/exynos/exynos5433.dtsi
View File

@ -1317,7 +1317,7 @@
reg = <0x14d60000 0x100>;
dmas = <&pdma0 31 &pdma0 30>;
dma-names = "tx", "rx";
interrupts = <GIC_SPI 435 IRQ_TYPE_NONE>;
interrupts = <GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cmu_peric CLK_PCLK_I2S1>,
<&cmu_peric CLK_PCLK_I2S1>,
<&cmu_peric CLK_SCLK_I2S1>;

7
arch/arm64/boot/dts/marvell/armada-cp110.dtsi
View File

@ -38,9 +38,10 @@
compatible = "marvell,armada-7k-pp22";
reg = <0x0 0x100000>, <0x129000 0xb000>;
clocks = <&CP110_LABEL(clk) 1 3>, <&CP110_LABEL(clk) 1 9>,
<&CP110_LABEL(clk) 1 5>, <&CP110_LABEL(clk) 1 18>;
<&CP110_LABEL(clk) 1 5>, <&CP110_LABEL(clk) 1 6>,
<&CP110_LABEL(clk) 1 18>;
clock-names = "pp_clk", "gop_clk",
"mg_clk", "axi_clk";
"mg_clk", "mg_core_clk", "axi_clk";
marvell,system-controller = <&CP110_LABEL(syscon0)>;
status = "disabled";
dma-coherent;
@ -141,6 +142,8 @@
#size-cells = <0>;
compatible = "marvell,xmdio";
reg = <0x12a600 0x10>;
clocks = <&CP110_LABEL(clk) 1 5>,
<&CP110_LABEL(clk) 1 6>, <&CP110_LABEL(clk) 1 18>;
status = "disabled";
};

2
arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi
View File

@ -46,7 +46,7 @@
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0x0>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_MAIN_GPIO(M, 5) IRQ_TYPE_LEVEL_HIGH>;
interrupts = <TEGRA_MAIN_GPIO(M, 5) IRQ_TYPE_LEVEL_LOW>;
};
};
};

2
arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
View File

@ -414,7 +414,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
cdns,phy-input-delay-legacy = <4>;
cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;

8
arch/arm64/boot/dts/socionext/uniphier-ld20-ref.dts
View File

@ -67,3 +67,11 @@
reg = <0>;
};
};
&pinctrl_ether_rgmii {
tx {
pins = "RGMII_TXCLK", "RGMII_TXD0", "RGMII_TXD1",
"RGMII_TXD2", "RGMII_TXD3", "RGMII_TXCTL";
drive-strength = <9>;
};
};

2
arch/arm64/boot/dts/socionext/uniphier-ld20.dtsi
View File

@ -519,7 +519,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
cdns,phy-input-delay-legacy = <4>;
cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;

2
arch/arm64/boot/dts/socionext/uniphier-pxs3.dtsi
View File

@ -334,7 +334,7 @@
mmc-ddr-1_8v;
mmc-hs200-1_8v;
mmc-pwrseq = <&emmc_pwrseq>;
cdns,phy-input-delay-legacy = <4>;
cdns,phy-input-delay-legacy = <9>;
cdns,phy-input-delay-mmc-highspeed = <2>;
cdns,phy-input-delay-mmc-ddr = <3>;
cdns,phy-dll-delay-sdclk = <21>;

6
arch/arm64/include/asm/cputype.h
View File

@ -75,6 +75,7 @@
#define ARM_CPU_IMP_CAVIUM 0x43
#define ARM_CPU_IMP_BRCM 0x42
#define ARM_CPU_IMP_QCOM 0x51
#define ARM_CPU_IMP_NVIDIA 0x4E
#define ARM_CPU_PART_AEM_V8 0xD0F
#define ARM_CPU_PART_FOUNDATION 0xD00
@ -99,6 +100,9 @@
#define QCOM_CPU_PART_FALKOR 0xC00
#define QCOM_CPU_PART_KRYO 0x200
#define NVIDIA_CPU_PART_DENVER 0x003
#define NVIDIA_CPU_PART_CARMEL 0x004
#define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
#define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
#define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
@ -114,6 +118,8 @@
#define MIDR_QCOM_FALKOR_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR_V1)
#define MIDR_QCOM_FALKOR MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_FALKOR)
#define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO)
#define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER)
#define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
#ifndef __ASSEMBLY__

16
arch/arm64/include/asm/kvm_mmu.h
View File

@ -360,6 +360,22 @@ static inline unsigned int kvm_get_vmid_bits(void)
return (cpuid_feature_extract_unsigned_field(reg, ID_AA64MMFR1_VMIDBITS_SHIFT) == 2) ? 16 : 8;
}
/*
* We are not in the kvm->srcu critical section most of the time, so we take
* the SRCU read lock here. Since we copy the data from the user page, we
* can immediately drop the lock again.
*/
static inline int kvm_read_guest_lock(struct kvm *kvm,
gpa_t gpa, void *data, unsigned long len)
{
int srcu_idx = srcu_read_lock(&kvm->srcu);
int ret = kvm_read_guest(kvm, gpa, data, len);
srcu_read_unlock(&kvm->srcu, srcu_idx);
return ret;
}
#ifdef CONFIG_KVM_INDIRECT_VECTORS
/*
* EL2 vectors can be mapped and rerouted in a number of ways,

1
arch/arm64/kernel/cpu_errata.c
View File

@ -316,6 +316,7 @@ static const struct midr_range arm64_bp_harden_smccc_cpus[] = {
MIDR_ALL_VERSIONS(MIDR_CAVIUM_THUNDERX2),
MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR_V1),
MIDR_ALL_VERSIONS(MIDR_QCOM_FALKOR),
MIDR_ALL_VERSIONS(MIDR_NVIDIA_DENVER),
{},
};

4
arch/arm64/mm/init.c
View File

@ -646,8 +646,10 @@ static int keep_initrd __initdata;
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd)
if (!keep_initrd) {
free_reserved_area((void *)start, (void *)end, 0, "initrd");
memblock_free(__virt_to_phys(start), end - start);
}
}
static int __init keepinitrd_setup(char *__unused)

2
arch/parisc/kernel/drivers.c
View File

@ -268,7 +268,7 @@ static struct parisc_device *find_device_by_addr(unsigned long hpa)
* Walks up the device tree looking for a device of the specified type.
* If it finds it, it returns it. If not, it returns NULL.
*/
const struct parisc_device * __init
const struct parisc_device *
find_pa_parent_type(const struct parisc_device *padev, int type)
{
const struct device *dev = &padev->dev;

3
arch/parisc/kernel/smp.c
View File

@ -423,8 +423,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
}
#ifdef CONFIG_PROC_FS
int __init
setup_profiling_timer(unsigned int multiplier)
int setup_profiling_timer(unsigned int multiplier)
{
return -EINVAL;
}

29
arch/powerpc/include/asm/ftrace.h
View File

@ -69,17 +69,30 @@ struct dyn_arch_ftrace {
#endif
#if defined(CONFIG_FTRACE_SYSCALLS) && !defined(__ASSEMBLY__)
#ifdef PPC64_ELF_ABI_v1
/*
* Some syscall entry functions on powerpc start with "ppc_" (fork and clone,
* for instance) or ppc32_/ppc64_. We should also match the sys_ variant with
* those.
*/
#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
#ifdef PPC64_ELF_ABI_v1
static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
{
/*
* Compare the symbol name with the system call name. Skip the .sys or .SyS
* prefix from the symbol name and the sys prefix from the system call name and
* just match the rest. This is only needed on ppc64 since symbol names on
* 32bit do not start with a period so the generic function will work.
*/
return !strcmp(sym + 4, name + 3);
/* We need to skip past the initial dot, and the __se_sys alias */
return !strcmp(sym + 1, name) ||
(!strncmp(sym, ".__se_sys", 9) && !strcmp(sym + 6, name)) ||
(!strncmp(sym, ".ppc_", 5) && !strcmp(sym + 5, name + 4)) ||
(!strncmp(sym, ".ppc32_", 7) && !strcmp(sym + 7, name + 4)) ||
(!strncmp(sym, ".ppc64_", 7) && !strcmp(sym + 7, name + 4));
}
#else
static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
{
return !strcmp(sym, name) ||
(!strncmp(sym, "__se_sys", 8) && !strcmp(sym + 5, name)) ||
(!strncmp(sym, "ppc_", 4) && !strcmp(sym + 4, name + 4)) ||
(!strncmp(sym, "ppc32_", 6) && !strcmp(sym + 6, name + 4)) ||
(!strncmp(sym, "ppc64_", 6) && !strcmp(sym + 6, name + 4));
}
#endif
#endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */

1
arch/powerpc/include/asm/paca.h
View File

@ -165,7 +165,6 @@ struct paca_struct {
u64 saved_msr; /* MSR saved here by enter_rtas */
u16 trap_save; /* Used when bad stack is encountered */
u8 irq_soft_mask; /* mask for irq soft masking */
u8 soft_enabled; /* irq soft-enable flag */
u8 irq_happened; /* irq happened while soft-disabled */
u8 io_sync; /* writel() needs spin_unlock sync */
u8 irq_work_pending; /* IRQ_WORK interrupt while soft-disable */

13
arch/powerpc/include/asm/topology.h
View File

@ -91,6 +91,7 @@ extern int start_topology_update(void);
extern int stop_topology_update(void);
extern int prrn_is_enabled(void);
extern int find_and_online_cpu_nid(int cpu);
extern int timed_topology_update(int nsecs);
#else
static inline int start_topology_update(void)
{
@ -108,16 +109,12 @@ static inline int find_and_online_cpu_nid(int cpu)
{
return 0;
}
static inline int timed_topology_update(int nsecs)
{
return 0;
}
#endif /* CONFIG_NUMA && CONFIG_PPC_SPLPAR */
#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_NEED_MULTIPLE_NODES)
#if defined(CONFIG_PPC_SPLPAR)
extern int timed_topology_update(int nsecs);
#else
#define timed_topology_update(nsecs)
#endif /* CONFIG_PPC_SPLPAR */
#endif /* CONFIG_HOTPLUG_CPU || CONFIG_NEED_MULTIPLE_NODES */
#include <asm-generic/topology.h>
#ifdef CONFIG_SMP

14
arch/powerpc/platforms/powernv/opal-nvram.c
View File

@ -44,6 +44,10 @@ static ssize_t opal_nvram_read(char *buf, size_t count, loff_t *index)
return count;
}
/*
* This can be called in the panic path with interrupts off, so use
* mdelay in that case.
*/
static ssize_t opal_nvram_write(char *buf, size_t count, loff_t *index)
{
s64 rc = OPAL_BUSY;
@ -58,10 +62,16 @@ static ssize_t opal_nvram_write(char *buf, size_t count, loff_t *index)
while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
rc = opal_write_nvram(__pa(buf), count, off);
if (rc == OPAL_BUSY_EVENT) {
msleep(OPAL_BUSY_DELAY_MS);
if (in_interrupt() || irqs_disabled())
mdelay(OPAL_BUSY_DELAY_MS);
else
msleep(OPAL_BUSY_DELAY_MS);
opal_poll_events(NULL);
} else if (rc == OPAL_BUSY) {
msleep(OPAL_BUSY_DELAY_MS);
if (in_interrupt() || irqs_disabled())
mdelay(OPAL_BUSY_DELAY_MS);
else
msleep(OPAL_BUSY_DELAY_MS);
}
}

9
arch/s390/configs/debug_defconfig
View File

@ -261,9 +261,9 @@ CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_TABLES_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_CHAIN_ROUTE_IPV4=m
CONFIG_NF_TABLES_ARP=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NFT_CHAIN_NAT_IPV4=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
@ -284,7 +284,7 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_NF_TABLES_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_CHAIN_ROUTE_IPV6=m
CONFIG_NFT_CHAIN_NAT_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
@ -305,7 +305,7 @@ CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_NF_TABLES_BRIDGE=m
CONFIG_NF_TABLES_BRIDGE=y
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m
@ -604,7 +604,6 @@ CONFIG_DETECT_HUNG_TASK=y
CONFIG_WQ_WATCHDOG=y
CONFIG_PANIC_ON_OOPS=y
CONFIG_DEBUG_TIMEKEEPING=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_PROVE_LOCKING=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_LOCKDEP=y

8
arch/s390/configs/performance_defconfig
View File

@ -259,9 +259,9 @@ CONFIG_IP_VS_NQ=m
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
CONFIG_NF_CONNTRACK_IPV4=m
CONFIG_NF_TABLES_IPV4=m
CONFIG_NF_TABLES_IPV4=y
CONFIG_NFT_CHAIN_ROUTE_IPV4=m
CONFIG_NF_TABLES_ARP=m
CONFIG_NF_TABLES_ARP=y
CONFIG_NFT_CHAIN_NAT_IPV4=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_MATCH_AH=m
@ -282,7 +282,7 @@ CONFIG_IP_NF_ARPTABLES=m
CONFIG_IP_NF_ARPFILTER=m
CONFIG_IP_NF_ARP_MANGLE=m
CONFIG_NF_CONNTRACK_IPV6=m
CONFIG_NF_TABLES_IPV6=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NFT_CHAIN_ROUTE_IPV6=m
CONFIG_NFT_CHAIN_NAT_IPV6=m
CONFIG_IP6_NF_IPTABLES=m
@ -303,7 +303,7 @@ CONFIG_IP6_NF_RAW=m
CONFIG_IP6_NF_SECURITY=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_TARGET_MASQUERADE=m
CONFIG_NF_TABLES_BRIDGE=m
CONFIG_NF_TABLES_BRIDGE=y
CONFIG_RDS=m
CONFIG_RDS_RDMA=m
CONFIG_RDS_TCP=m

5
arch/s390/crypto/crc32be-vx.S
View File

@ -13,6 +13,7 @@
*/
#include <linux/linkage.h>
#include <asm/nospec-insn.h>
#include <asm/vx-insn.h>
/* Vector register range containing CRC-32 constants */
@ -67,6 +68,8 @@
.previous
GEN_BR_THUNK %r14
.text
/*
* The CRC-32 function(s) use these calling conventions:
@ -203,6 +206,6 @@ ENTRY(crc32_be_vgfm_16)
.Ldone:
VLGVF %r2,%v2,3
br %r14
BR_EX %r14
.previous

4
arch/s390/crypto/crc32le-vx.S
View File

@ -14,6 +14,7 @@
*/
#include <linux/linkage.h>
#include <asm/nospec-insn.h>
#include <asm/vx-insn.h>
/* Vector register range containing CRC-32 constants */
@ -76,6 +77,7 @@
.previous
GEN_BR_THUNK %r14
.text
@ -264,6 +266,6 @@ crc32_le_vgfm_generic:
.Ldone:
VLGVF %r2,%v2,2
br %r14
BR_EX %r14
.previous

196
arch/s390/include/asm/nospec-insn.h Normal file
View File

@ -0,0 +1,196 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_S390_NOSPEC_ASM_H
#define _ASM_S390_NOSPEC_ASM_H
#include <asm/alternative-asm.h>
#include <asm/asm-offsets.h>
#include <asm/dwarf.h>
#ifdef __ASSEMBLY__
#ifdef CONFIG_EXPOLINE
_LC_BR_R1 = __LC_BR_R1
/*
* The expoline macros are used to create thunks in the same format
* as gcc generates them. The 'comdat' section flag makes sure that
* the various thunks are merged into a single copy.
*/
.macro __THUNK_PROLOG_NAME name
.pushsection .text.\name,"axG",@progbits,\name,comdat
.globl \name
.hidden \name
.type \name,@function
\name:
CFI_STARTPROC
.endm
.macro __THUNK_EPILOG
CFI_ENDPROC
.popsection
.endm
.macro __THUNK_PROLOG_BR r1,r2
__THUNK_PROLOG_NAME __s390x_indirect_jump_r\r2\()use_r\r1
.endm
.macro __THUNK_PROLOG_BC d0,r1,r2
__THUNK_PROLOG_NAME __s390x_indirect_branch_\d0\()_\r2\()use_\r1
.endm
.macro __THUNK_BR r1,r2
jg __s390x_indirect_jump_r\r2\()use_r\r1
.endm
.macro __THUNK_BC d0,r1,r2
jg __s390x_indirect_branch_\d0\()_\r2\()use_\r1
.endm
.macro __THUNK_BRASL r1,r2,r3
brasl \r1,__s390x_indirect_jump_r\r3\()use_r\r2
.endm
.macro __DECODE_RR expand,reg,ruse
.set __decode_fail,1
.irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \reg,%r\r1
.irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \ruse,%r\r2
\expand \r1,\r2
.set __decode_fail,0
.endif
.endr
.endif
.endr
.if __decode_fail == 1
.error "__DECODE_RR failed"
.endif
.endm
.macro __DECODE_RRR expand,rsave,rtarget,ruse
.set __decode_fail,1
.irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \rsave,%r\r1
.irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \rtarget,%r\r2
.irp r3,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \ruse,%r\r3
\expand \r1,\r2,\r3
.set __decode_fail,0
.endif
.endr
.endif
.endr
.endif
.endr
.if __decode_fail == 1
.error "__DECODE_RRR failed"
.endif
.endm
.macro __DECODE_DRR expand,disp,reg,ruse
.set __decode_fail,1
.irp r1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \reg,%r\r1
.irp r2,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \ruse,%r\r2
\expand \disp,\r1,\r2
.set __decode_fail,0
.endif
.endr
.endif
.endr
.if __decode_fail == 1
.error "__DECODE_DRR failed"
.endif
.endm
.macro __THUNK_EX_BR reg,ruse
# Be very careful when adding instructions to this macro!
# The ALTERNATIVE replacement code has a .+10 which targets
# the "br \reg" after the code has been patched.
#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
exrl 0,555f
j .
#else
.ifc \reg,%r1
ALTERNATIVE "ex %r0,_LC_BR_R1", ".insn ril,0xc60000000000,0,.+10", 35
j .
.else
larl \ruse,555f
ex 0,0(\ruse)
j .
.endif
#endif
555: br \reg
.endm
.macro __THUNK_EX_BC disp,reg,ruse
#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
exrl 0,556f
j .
#else
larl \ruse,556f
ex 0,0(\ruse)
j .
#endif
556: b \disp(\reg)
.endm
.macro GEN_BR_THUNK reg,ruse=%r1
__DECODE_RR __THUNK_PROLOG_BR,\reg,\ruse
__THUNK_EX_BR \reg,\ruse
__THUNK_EPILOG
.endm
.macro GEN_B_THUNK disp,reg,ruse=%r1
__DECODE_DRR __THUNK_PROLOG_BC,\disp,\reg,\ruse
__THUNK_EX_BC \disp,\reg,\ruse
__THUNK_EPILOG
.endm
.macro BR_EX reg,ruse=%r1
557: __DECODE_RR __THUNK_BR,\reg,\ruse
.pushsection .s390_indirect_branches,"a",@progbits
.long 557b-.
.popsection
.endm
.macro B_EX disp,reg,ruse=%r1
558: __DECODE_DRR __THUNK_BC,\disp,\reg,\ruse
.pushsection .s390_indirect_branches,"a",@progbits
.long 558b-.
.popsection
.endm
.macro BASR_EX rsave,rtarget,ruse=%r1
559: __DECODE_RRR __THUNK_BRASL,\rsave,\rtarget,\ruse
.pushsection .s390_indirect_branches,"a",@progbits
.long 559b-.
.popsection
.endm
#else
.macro GEN_BR_THUNK reg,ruse=%r1
.endm
.macro GEN_B_THUNK disp,reg,ruse=%r1
.endm
.macro BR_EX reg,ruse=%r1
br \reg
.endm
.macro B_EX disp,reg,ruse=%r1
b \disp(\reg)
.endm
.macro BASR_EX rsave,rtarget,ruse=%r1
basr \rsave,\rtarget
.endm
#endif
#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_NOSPEC_ASM_H */

6
arch/s390/include/asm/purgatory.h
View File

@ -13,5 +13,11 @@
int verify_sha256_digest(void);
extern u64 kernel_entry;
extern u64 kernel_type;
extern u64 crash_start;
extern u64 crash_size;
#endif /* __ASSEMBLY__ */
#endif /* _S390_PURGATORY_H_ */

1
arch/s390/kernel/Makefile
View File

@ -65,6 +65,7 @@ obj-y += nospec-branch.o
extra-y += head.o head64.o vmlinux.lds
obj-$(CONFIG_SYSFS) += nospec-sysfs.o
CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE)
obj-$(CONFIG_MODULES) += module.o

1
arch/s390/kernel/asm-offsets.c
View File

@ -181,6 +181,7 @@ int main(void)
OFFSET(__LC_MACHINE_FLAGS, lowcore, machine_flags);
OFFSET(__LC_PREEMPT_COUNT, lowcore, preempt_count);
OFFSET(__LC_GMAP, lowcore, gmap);
OFFSET(__LC_BR_R1, lowcore, br_r1_trampoline);
/* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */
OFFSET(__LC_DUMP_REIPL, lowcore, ipib);
/* hardware defined lowcore locations 0x1000 - 0x18ff */

24
arch/s390/kernel/base.S
View File

@ -9,18 +9,22 @@
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/nospec-insn.h>
#include <asm/ptrace.h>
#include <asm/sigp.h>
GEN_BR_THUNK %r9
GEN_BR_THUNK %r14
ENTRY(s390_base_mcck_handler)
basr %r13,0
0: lg %r15,__LC_PANIC_STACK # load panic stack
aghi %r15,-STACK_FRAME_OVERHEAD
larl %r1,s390_base_mcck_handler_fn
lg %r1,0(%r1)
ltgr %r1,%r1
lg %r9,0(%r1)
ltgr %r9,%r9
jz 1f
basr %r14,%r1
BASR_EX %r14,%r9
1: la %r1,4095
lmg %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)
lpswe __LC_MCK_OLD_PSW
@ -37,10 +41,10 @@ ENTRY(s390_base_ext_handler)
basr %r13,0
0: aghi %r15,-STACK_FRAME_OVERHEAD
larl %r1,s390_base_ext_handler_fn
lg %r1,0(%r1)
ltgr %r1,%r1
lg %r9,0(%r1)
ltgr %r9,%r9
jz 1f
basr %r14,%r1
BASR_EX %r14,%r9
1: lmg %r0,%r15,__LC_SAVE_AREA_ASYNC
ni __LC_EXT_OLD_PSW+1,0xfd # clear wait state bit
lpswe __LC_EXT_OLD_PSW
@ -57,10 +61,10 @@ ENTRY(s390_base_pgm_handler)
basr %r13,0
0: aghi %r15,-STACK_FRAME_OVERHEAD
larl %r1,s390_base_pgm_handler_fn
lg %r1,0(%r1)
ltgr %r1,%r1
lg %r9,0(%r1)
ltgr %r9,%r9
jz 1f
basr %r14,%r1
BASR_EX %r14,%r9
lmg %r0,%r15,__LC_SAVE_AREA_SYNC
lpswe __LC_PGM_OLD_PSW
1: lpswe disabled_wait_psw-0b(%r13)
@ -117,7 +121,7 @@ ENTRY(diag308_reset)
larl %r4,.Lcontinue_psw # Restore PSW flags
lpswe 0(%r4)
.Lcontinue:
br %r14
BR_EX %r14
.align 16
.Lrestart_psw:
.long 0x00080000,0x80000000 + .Lrestart_part2

105
arch/s390/kernel/entry.S
View File

@ -28,6 +28,7 @@
#include <asm/setup.h>
#include <asm/nmi.h>
#include <asm/export.h>
#include <asm/nospec-insn.h>
__PT_R0 = __PT_GPRS
__PT_R1 = __PT_GPRS + 8
@ -183,67 +184,9 @@ _LPP_OFFSET = __LC_LPP
"jnz .+8; .long 0xb2e8d000", 82
.endm
#ifdef CONFIG_EXPOLINE
.macro GEN_BR_THUNK name,reg,tmp
.section .text.\name,"axG",@progbits,\name,comdat
.globl \name
.hidden \name
.type \name,@function
\name:
CFI_STARTPROC
#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
exrl 0,0f
#else
larl \tmp,0f
ex 0,0(\tmp)
#endif
j .
0: br \reg
CFI_ENDPROC
.endm
GEN_BR_THUNK __s390x_indirect_jump_r1use_r9,%r9,%r1
GEN_BR_THUNK __s390x_indirect_jump_r1use_r14,%r14,%r1
GEN_BR_THUNK __s390x_indirect_jump_r11use_r14,%r14,%r11
.macro BASR_R14_R9
0: brasl %r14,__s390x_indirect_jump_r1use_r9
.pushsection .s390_indirect_branches,"a",@progbits
.long 0b-.
.popsection
.endm
.macro BR_R1USE_R14
0: jg __s390x_indirect_jump_r1use_r14
.pushsection .s390_indirect_branches,"a",@progbits
.long 0b-.
.popsection
.endm
.macro BR_R11USE_R14
0: jg __s390x_indirect_jump_r11use_r14
.pushsection .s390_indirect_branches,"a",@progbits
.long 0b-.
.popsection
.endm
#else /* CONFIG_EXPOLINE */
.macro BASR_R14_R9
basr %r14,%r9
.endm
.macro BR_R1USE_R14
br %r14
.endm
.macro BR_R11USE_R14
br %r14
.endm
#endif /* CONFIG_EXPOLINE */
GEN_BR_THUNK %r9
GEN_BR_THUNK %r14
GEN_BR_THUNK %r14,%r11
.section .kprobes.text, "ax"
.Ldummy:
@ -260,7 +203,7 @@ _LPP_OFFSET = __LC_LPP
ENTRY(__bpon)
.globl __bpon
BPON
BR_R1USE_R14
BR_EX %r14
/*
* Scheduler resume function, called by switch_to
@ -284,7 +227,7 @@ ENTRY(__switch_to)
mvc __LC_CURRENT_PID(4,%r0),0(%r3) # store pid of next
lmg %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
ALTERNATIVE "", ".insn s,0xb2800000,_LPP_OFFSET", 40
BR_R1USE_R14
BR_EX %r14
.L__critical_start:
@ -351,7 +294,7 @@ sie_exit:
xgr %r5,%r5
lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
lg %r2,__SF_SIE_REASON(%r15) # return exit reason code
BR_R1USE_R14
BR_EX %r14
.Lsie_fault:
lghi %r14,-EFAULT
stg %r14,__SF_SIE_REASON(%r15) # set exit reason code
@ -410,7 +353,7 @@ ENTRY(system_call)
lgf %r9,0(%r8,%r10) # get system call add.
TSTMSK __TI_flags(%r12),_TIF_TRACE
jnz .Lsysc_tracesys
BASR_R14_R9 # call sys_xxxx
BASR_EX %r14,%r9 # call sys_xxxx
stg %r2,__PT_R2(%r11) # store return value
.Lsysc_return:
@ -595,7 +538,7 @@ ENTRY(system_call)
lmg %r3,%r7,__PT_R3(%r11)
stg %r7,STACK_FRAME_OVERHEAD(%r15)
lg %r2,__PT_ORIG_GPR2(%r11)
BASR_R14_R9 # call sys_xxx
BASR_EX %r14,%r9 # call sys_xxx
stg %r2,__PT_R2(%r11) # store return value
.Lsysc_tracenogo:
TSTMSK __TI_flags(%r12),_TIF_TRACE
@ -619,7 +562,7 @@ ENTRY(ret_from_fork)
lmg %r9,%r10,__PT_R9(%r11) # load gprs
ENTRY(kernel_thread_starter)
la %r2,0(%r10)
BASR_R14_R9
BASR_EX %r14,%r9
j .Lsysc_tracenogo
/*
@ -701,7 +644,7 @@ ENTRY(pgm_check_handler)
je .Lpgm_return
lgf %r9,0(%r10,%r1) # load address of handler routine
lgr %r2,%r11 # pass pointer to pt_regs
BASR_R14_R9 # branch to interrupt-handler
BASR_EX %r14,%r9 # branch to interrupt-handler
.Lpgm_return:
LOCKDEP_SYS_EXIT
tm __PT_PSW+1(%r11),0x01 # returning to user ?
@ -1019,7 +962,7 @@ ENTRY(psw_idle)
stpt __TIMER_IDLE_ENTER(%r2)
.Lpsw_idle_lpsw:
lpswe __SF_EMPTY(%r15)
BR_R1USE_R14
BR_EX %r14
.Lpsw_idle_end:
/*
@ -1061,7 +1004,7 @@ ENTRY(save_fpu_regs)
.Lsave_fpu_regs_done:
oi __LC_CPU_FLAGS+7,_CIF_FPU
.Lsave_fpu_regs_exit:
BR_R1USE_R14
BR_EX %r14
.Lsave_fpu_regs_end:
EXPORT_SYMBOL(save_fpu_regs)
@ -1107,7 +1050,7 @@ load_fpu_regs:
.Lload_fpu_regs_done:
ni __LC_CPU_FLAGS+7,255-_CIF_FPU
.Lload_fpu_regs_exit:
BR_R1USE_R14
BR_EX %r14
.Lload_fpu_regs_end:
.L__critical_end:
@ -1322,7 +1265,7 @@ cleanup_critical:
jl 0f
clg %r9,BASED(.Lcleanup_table+104) # .Lload_fpu_regs_end
jl .Lcleanup_load_fpu_regs
0: BR_R11USE_R14
0: BR_EX %r14
.align 8
.Lcleanup_table:
@ -1358,7 +1301,7 @@ cleanup_critical:
ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
larl %r9,sie_exit # skip forward to sie_exit
BR_R11USE_R14
BR_EX %r14
#endif
.Lcleanup_system_call:
@ -1412,7 +1355,7 @@ cleanup_critical:
stg %r15,56(%r11) # r15 stack pointer
# set new psw address and exit
larl %r9,.Lsysc_do_svc
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_system_call_insn:
.quad system_call
.quad .Lsysc_stmg
@ -1424,7 +1367,7 @@ cleanup_critical:
.Lcleanup_sysc_tif:
larl %r9,.Lsysc_tif
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_sysc_restore:
# check if stpt has been executed
@ -1441,14 +1384,14 @@ cleanup_critical:
mvc 0(64,%r11),__PT_R8(%r9)
lmg %r0,%r7,__PT_R0(%r9)
1: lmg %r8,%r9,__LC_RETURN_PSW
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_sysc_restore_insn:
.quad .Lsysc_exit_timer
.quad .Lsysc_done - 4
.Lcleanup_io_tif:
larl %r9,.Lio_tif
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_io_restore:
# check if stpt has been executed
@ -1462,7 +1405,7 @@ cleanup_critical:
mvc 0(64,%r11),__PT_R8(%r9)
lmg %r0,%r7,__PT_R0(%r9)
1: lmg %r8,%r9,__LC_RETURN_PSW
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_io_restore_insn:
.quad .Lio_exit_timer
.quad .Lio_done - 4
@ -1515,17 +1458,17 @@ cleanup_critical:
# prepare return psw
nihh %r8,0xfcfd # clear irq & wait state bits
lg %r9,48(%r11) # return from psw_idle
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_idle_insn:
.quad .Lpsw_idle_lpsw
.Lcleanup_save_fpu_regs:
larl %r9,save_fpu_regs
BR_R11USE_R14
BR_EX %r14,%r11
.Lcleanup_load_fpu_regs:
larl %r9,load_fpu_regs
BR_R11USE_R14
BR_EX %r14,%r11
/*
* Integer constants

5
arch/s390/kernel/irq.c
View File

@ -176,10 +176,9 @@ void do_softirq_own_stack(void)
new -= STACK_FRAME_OVERHEAD;
((struct stack_frame *) new)->back_chain = old;
asm volatile(" la 15,0(%0)\n"
" basr 14,%2\n"
" brasl 14,__do_softirq\n"
" la 15,0(%1)\n"
: : "a" (new), "a" (old),
"a" (__do_softirq)
: : "a" (new), "a" (old)
: "0", "1", "2", "3", "4", "5", "14",
"cc", "memory" );
} else {

14
arch/s390/kernel/mcount.S
View File

@ -9,13 +9,17 @@
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/ftrace.h>
#include <asm/nospec-insn.h>
#include <asm/ptrace.h>
#include <asm/export.h>
GEN_BR_THUNK %r1
GEN_BR_THUNK %r14
.section .kprobes.text, "ax"
ENTRY(ftrace_stub)
br %r14
BR_EX %r14
#define STACK_FRAME_SIZE (STACK_FRAME_OVERHEAD + __PT_SIZE)
#define STACK_PTREGS (STACK_FRAME_OVERHEAD)
@ -23,7 +27,7 @@ ENTRY(ftrace_stub)
#define STACK_PTREGS_PSW (STACK_PTREGS + __PT_PSW)
ENTRY(_mcount)
br %r14
BR_EX %r14
EXPORT_SYMBOL(_mcount)
@ -53,7 +57,7 @@ ENTRY(ftrace_caller)
#endif
lgr %r3,%r14
la %r5,STACK_PTREGS(%r15)
basr %r14,%r1
BASR_EX %r14,%r1
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
# The j instruction gets runtime patched to a nop instruction.
# See ftrace_enable_ftrace_graph_caller.
@ -68,7 +72,7 @@ ftrace_graph_caller_end:
#endif
lg %r1,(STACK_PTREGS_PSW+8)(%r15)
lmg %r2,%r15,(STACK_PTREGS_GPRS+2*8)(%r15)
br %r1
BR_EX %r1
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
@ -81,6 +85,6 @@ ENTRY(return_to_handler)
aghi %r15,STACK_FRAME_OVERHEAD
lgr %r14,%r2
lmg %r2,%r5,32(%r15)
br %r14
BR_EX %r14
#endif

44
arch/s390/kernel/nospec-branch.c
View File

@ -1,7 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
#include <linux/device.h>
#include <linux/cpu.h>
#include <asm/nospec-branch.h>
static int __init nobp_setup_early(char *str)
@ -44,24 +43,6 @@ static int __init nospec_report(void)
}
arch_initcall(nospec_report);
#ifdef CONFIG_SYSFS
ssize_t cpu_show_spectre_v1(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "Mitigation: __user pointer sanitization\n");
}
ssize_t cpu_show_spectre_v2(struct device *dev,
struct device_attribute *attr, char *buf)
{
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable)
return sprintf(buf, "Mitigation: execute trampolines\n");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
return sprintf(buf, "Mitigation: limited branch prediction.\n");
return sprintf(buf, "Vulnerable\n");
}
#endif
#ifdef CONFIG_EXPOLINE
int nospec_disable = IS_ENABLED(CONFIG_EXPOLINE_OFF);
@ -112,7 +93,6 @@ static void __init_or_module __nospec_revert(s32 *start, s32 *end)
s32 *epo;
/* Second part of the instruction replace is always a nop */
memcpy(insnbuf + 2, (char[]) { 0x47, 0x00, 0x00, 0x00 }, 4);
for (epo = start; epo < end; epo++) {
instr = (u8 *) epo + *epo;
if (instr[0] == 0xc0 && (instr[1] & 0x0f) == 0x04)
@ -133,18 +113,34 @@ static void __init_or_module __nospec_revert(s32 *start, s32 *end)
br = thunk + (*(int *)(thunk + 2)) * 2;
else
continue;
if (br[0] != 0x07 || (br[1] & 0xf0) != 0xf0)
/* Check for unconditional branch 0x07f? or 0x47f???? */
if ((br[0] & 0xbf) != 0x07 || (br[1] & 0xf0) != 0xf0)
continue;
memcpy(insnbuf + 2, (char[]) { 0x47, 0x00, 0x07, 0x00 }, 4);
switch (type) {
case BRCL_EXPOLINE:
/* brcl to thunk, replace with br + nop */
insnbuf[0] = br[0];
insnbuf[1] = (instr[1] & 0xf0) | (br[1] & 0x0f);
if (br[0] == 0x47) {
/* brcl to b, replace with bc + nopr */
insnbuf[2] = br[2];
insnbuf[3] = br[3];
} else {
/* brcl to br, replace with bcr + nop */
}
break;
case BRASL_EXPOLINE:
/* brasl to thunk, replace with basr + nop */
insnbuf[0] = 0x0d;
insnbuf[1] = (instr[1] & 0xf0) | (br[1] & 0x0f);
if (br[0] == 0x47) {
/* brasl to b, replace with bas + nopr */
insnbuf[0] = 0x4d;
insnbuf[2] = br[2];
insnbuf[3] = br[3];
} else {
/* brasl to br, replace with basr + nop */
insnbuf[0] = 0x0d;
}
break;
}

21
arch/s390/kernel/nospec-sysfs.c Normal file
View File

@ -0,0 +1,21 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/device.h>
#include <linux/cpu.h>
#include <asm/facility.h>
#include <asm/nospec-branch.h>
ssize_t cpu_show_spectre_v1(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "Mitigation: __user pointer sanitization\n");
}
ssize_t cpu_show_spectre_v2(struct device *dev,
struct device_attribute *attr, char *buf)
{
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable)
return sprintf(buf, "Mitigation: execute trampolines\n");
if (__test_facility(82, S390_lowcore.alt_stfle_fac_list))
return sprintf(buf, "Mitigation: limited branch prediction\n");
return sprintf(buf, "Vulnerable\n");
}

4
arch/s390/kernel/perf_cpum_sf.c
View File

@ -753,6 +753,10 @@ static int __hw_perf_event_init(struct perf_event *event)
*/
rate = 0;
if (attr->freq) {
if (!attr->sample_freq) {
err = -EINVAL;
goto out;
}
rate = freq_to_sample_rate(&si, attr->sample_freq);
rate = hw_limit_rate(&si, rate);
attr->freq = 0;

7
arch/s390/kernel/reipl.S
View File

@ -7,8 +7,11 @@
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/nospec-insn.h>
#include <asm/sigp.h>
GEN_BR_THUNK %r9
#
# Issue "store status" for the current CPU to its prefix page
# and call passed function afterwards
@ -67,9 +70,9 @@ ENTRY(store_status)
st %r4,0(%r1)
st %r5,4(%r1)
stg %r2,8(%r1)
lgr %r1,%r2
lgr %r9,%r2
lgr %r2,%r3
br %r1
BR_EX %r9
.section .bss
.align 8

10
arch/s390/kernel/swsusp.S
View File

@ -13,6 +13,7 @@
#include <asm/ptrace.h>
#include <asm/thread_info.h>
#include <asm/asm-offsets.h>
#include <asm/nospec-insn.h>
#include <asm/sigp.h>
/*
@ -24,6 +25,8 @@
* (see below) in the resume process.
* This function runs with disabled interrupts.
*/
GEN_BR_THUNK %r14
.section .text
ENTRY(swsusp_arch_suspend)
stmg %r6,%r15,__SF_GPRS(%r15)
@ -103,7 +106,7 @@ ENTRY(swsusp_arch_suspend)
spx 0x318(%r1)
lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
lghi %r2,0
br %r14
BR_EX %r14
/*
* Restore saved memory image to correct place and restore register context.
@ -197,11 +200,10 @@ pgm_check_entry:
larl %r15,init_thread_union
ahi %r15,1<<(PAGE_SHIFT+THREAD_SIZE_ORDER)
larl %r2,.Lpanic_string
larl %r3,sclp_early_printk
lghi %r1,0
sam31
sigp %r1,%r0,SIGP_SET_ARCHITECTURE
basr %r14,%r3
brasl %r14,sclp_early_printk
larl %r3,.Ldisabled_wait_31
lpsw 0(%r3)
4:
@ -267,7 +269,7 @@ restore_registers:
/* Return 0 */
lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
lghi %r2,0
br %r14
BR_EX %r14
.section .data..nosave,"aw",@progbits
.align 8

19
arch/s390/lib/mem.S
View File

@ -7,6 +7,9 @@
#include <linux/linkage.h>
#include <asm/export.h>
#include <asm/nospec-insn.h>
GEN_BR_THUNK %r14
/*
* void *memmove(void *dest, const void *src, size_t n)
@ -33,14 +36,14 @@ ENTRY(memmove)
.Lmemmove_forward_remainder:
larl %r5,.Lmemmove_mvc
ex %r4,0(%r5)
br %r14
BR_EX %r14
.Lmemmove_reverse:
ic %r0,0(%r4,%r3)
stc %r0,0(%r4,%r1)
brctg %r4,.Lmemmove_reverse
ic %r0,0(%r4,%r3)
stc %r0,0(%r4,%r1)
br %r14
BR_EX %r14
.Lmemmove_mvc:
mvc 0(1,%r1),0(%r3)
EXPORT_SYMBOL(memmove)
@ -77,7 +80,7 @@ ENTRY(memset)
.Lmemset_clear_remainder:
larl %r3,.Lmemset_xc
ex %r4,0(%r3)
br %r14
BR_EX %r14
.Lmemset_fill:
cghi %r4,1
lgr %r1,%r2
@ -95,10 +98,10 @@ ENTRY(memset)
stc %r3,0(%r1)
larl %r5,.Lmemset_mvc
ex %r4,0(%r5)
br %r14
BR_EX %r14
.Lmemset_fill_exit:
stc %r3,0(%r1)
br %r14
BR_EX %r14
.Lmemset_xc:
xc 0(1,%r1),0(%r1)
.Lmemset_mvc:
@ -121,7 +124,7 @@ ENTRY(memcpy)
.Lmemcpy_remainder:
larl %r5,.Lmemcpy_mvc
ex %r4,0(%r5)
br %r14
BR_EX %r14
.Lmemcpy_loop:
mvc 0(256,%r1),0(%r3)
la %r1,256(%r1)
@ -159,10 +162,10 @@ ENTRY(__memset\bits)
\insn %r3,0(%r1)
larl %r5,.L__memset_mvc\bits
ex %r4,0(%r5)
br %r14
BR_EX %r14
.L__memset_exit\bits:
\insn %r3,0(%r2)
br %r14
BR_EX %r14
.L__memset_mvc\bits:
mvc \bytes(1,%r1),0(%r1)
.endm

16
arch/s390/net/bpf_jit.S
View File

@ -9,6 +9,7 @@
*/
#include <linux/linkage.h>
#include <asm/nospec-insn.h>
#include "bpf_jit.h"
/*
@ -54,7 +55,7 @@ ENTRY(sk_load_##NAME##_pos); \
clg %r3,STK_OFF_HLEN(%r15); /* Offset + SIZE > hlen? */ \
jh sk_load_##NAME##_slow; \
LOAD %r14,-SIZE(%r3,%r12); /* Get data from skb */ \
b OFF_OK(%r6); /* Return */ \
B_EX OFF_OK,%r6; /* Return */ \
\
sk_load_##NAME##_slow:; \
lgr %r2,%r7; /* Arg1 = skb pointer */ \
@ -64,11 +65,14 @@ sk_load_##NAME##_slow:; \
brasl %r14,skb_copy_bits; /* Get data from skb */ \
LOAD %r14,STK_OFF_TMP(%r15); /* Load from temp bufffer */ \
ltgr %r2,%r2; /* Set cc to (%r2 != 0) */ \
br %r6; /* Return */
BR_EX %r6; /* Return */
sk_load_common(word, 4, llgf) /* r14 = *(u32 *) (skb->data+offset) */
sk_load_common(half, 2, llgh) /* r14 = *(u16 *) (skb->data+offset) */
GEN_BR_THUNK %r6
GEN_B_THUNK OFF_OK,%r6
/*
* Load 1 byte from SKB (optimized version)
*/
@ -80,7 +84,7 @@ ENTRY(sk_load_byte_pos)
clg %r3,STK_OFF_HLEN(%r15) # Offset >= hlen?
jnl sk_load_byte_slow
llgc %r14,0(%r3,%r12) # Get byte from skb
b OFF_OK(%r6) # Return OK
B_EX OFF_OK,%r6 # Return OK
sk_load_byte_slow:
lgr %r2,%r7 # Arg1 = skb pointer
@ -90,7 +94,7 @@ sk_load_byte_slow:
brasl %r14,skb_copy_bits # Get data from skb
llgc %r14,STK_OFF_TMP(%r15) # Load result from temp buffer
ltgr %r2,%r2 # Set cc to (%r2 != 0)
br %r6 # Return cc
BR_EX %r6 # Return cc
#define sk_negative_common(NAME, SIZE, LOAD) \
sk_load_##NAME##_slow_neg:; \
@ -104,7 +108,7 @@ sk_load_##NAME##_slow_neg:; \
jz bpf_error; \
LOAD %r14,0(%r2); /* Get data from pointer */ \
xr %r3,%r3; /* Set cc to zero */ \
br %r6; /* Return cc */
BR_EX %r6; /* Return cc */
sk_negative_common(word, 4, llgf)
sk_negative_common(half, 2, llgh)
@ -113,4 +117,4 @@ sk_negative_common(byte, 1, llgc)
bpf_error:
# force a return 0 from jit handler
ltgr %r15,%r15 # Set condition code
br %r6
BR_EX %r6

63
arch/s390/net/bpf_jit_comp.c
View File

@ -25,6 +25,8 @@
#include <linux/bpf.h>
#include <asm/cacheflush.h>
#include <asm/dis.h>
#include <asm/facility.h>
#include <asm/nospec-branch.h>
#include <asm/set_memory.h>
#include "bpf_jit.h"
@ -41,6 +43,8 @@ struct bpf_jit {
int base_ip; /* Base address for literal pool */
int ret0_ip; /* Address of return 0 */
int exit_ip; /* Address of exit */
int r1_thunk_ip; /* Address of expoline thunk for 'br %r1' */
int r14_thunk_ip; /* Address of expoline thunk for 'br %r14' */
int tail_call_start; /* Tail call start offset */
int labels[1]; /* Labels for local jumps */
};
@ -250,6 +254,19 @@ static inline void reg_set_seen(struct bpf_jit *jit, u32 b1)
REG_SET_SEEN(b2); \
})
#define EMIT6_PCREL_RILB(op, b, target) \
({ \
int rel = (target - jit->prg) / 2; \
_EMIT6(op | reg_high(b) << 16 | rel >> 16, rel & 0xffff); \
REG_SET_SEEN(b); \
})
#define EMIT6_PCREL_RIL(op, target) \
({ \
int rel = (target - jit->prg) / 2; \
_EMIT6(op | rel >> 16, rel & 0xffff); \
})
#define _EMIT6_IMM(op, imm) \
({ \
unsigned int __imm = (imm); \
@ -469,8 +486,45 @@ static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
EMIT4(0xb9040000, REG_2, BPF_REG_0);
/* Restore registers */
save_restore_regs(jit, REGS_RESTORE, stack_depth);
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) {
jit->r14_thunk_ip = jit->prg;
/* Generate __s390_indirect_jump_r14 thunk */
if (test_facility(35)) {
/* exrl %r0,.+10 */
EMIT6_PCREL_RIL(0xc6000000, jit->prg + 10);
} else {
/* larl %r1,.+14 */
EMIT6_PCREL_RILB(0xc0000000, REG_1, jit->prg + 14);
/* ex 0,0(%r1) */
EMIT4_DISP(0x44000000, REG_0, REG_1, 0);
}
/* j . */
EMIT4_PCREL(0xa7f40000, 0);
}
/* br %r14 */
_EMIT2(0x07fe);
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable &&
(jit->seen & SEEN_FUNC)) {
jit->r1_thunk_ip = jit->prg;
/* Generate __s390_indirect_jump_r1 thunk */
if (test_facility(35)) {
/* exrl %r0,.+10 */
EMIT6_PCREL_RIL(0xc6000000, jit->prg + 10);
/* j . */
EMIT4_PCREL(0xa7f40000, 0);
/* br %r1 */
_EMIT2(0x07f1);
} else {
/* larl %r1,.+14 */
EMIT6_PCREL_RILB(0xc0000000, REG_1, jit->prg + 14);
/* ex 0,S390_lowcore.br_r1_tampoline */
EMIT4_DISP(0x44000000, REG_0, REG_0,
offsetof(struct lowcore, br_r1_trampoline));
/* j . */
EMIT4_PCREL(0xa7f40000, 0);
}
}
}
/*
@ -966,8 +1020,13 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
/* lg %w1,<d(imm)>(%l) */
EMIT6_DISP_LH(0xe3000000, 0x0004, REG_W1, REG_0, REG_L,
EMIT_CONST_U64(func));
/* basr %r14,%w1 */
EMIT2(0x0d00, REG_14, REG_W1);
if (IS_ENABLED(CC_USING_EXPOLINE) && !nospec_disable) {
/* brasl %r14,__s390_indirect_jump_r1 */
EMIT6_PCREL_RILB(0xc0050000, REG_14, jit->r1_thunk_ip);
} else {
/* basr %r14,%w1 */
EMIT2(0x0d00, REG_14, REG_W1);
}
/* lgr %b0,%r2: load return value into %b0 */
EMIT4(0xb9040000, BPF_REG_0, REG_2);
if ((jit->seen & SEEN_SKB) &&

1
arch/sh/Kconfig
View File

@ -9,6 +9,7 @@ config SUPERH
select HAVE_IDE if HAS_IOPORT_MAP
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select NO_BOOTMEM
select ARCH_DISCARD_MEMBLOCK
select HAVE_OPROFILE
select HAVE_GENERIC_DMA_COHERENT

4
arch/sh/kernel/cpu/sh2/probe.c
View File

@ -43,7 +43,11 @@ void __ref cpu_probe(void)
#endif
#if defined(CONFIG_CPU_J2)
#if defined(CONFIG_SMP)
unsigned cpu = hard_smp_processor_id();
#else
unsigned cpu = 0;
#endif
if (cpu == 0) of_scan_flat_dt(scan_cache, NULL);
if (j2_ccr_base) __raw_writel(0x80000303, j2_ccr_base + 4*cpu);
if (cpu != 0) return;

1
arch/sh/kernel/setup.c
View File

@ -11,7 +11,6 @@
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/initrd.h>
#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/root_dev.h>
#include <linux/utsname.h>

11
arch/sh/mm/consistent.c
View File

@ -59,7 +59,9 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
*dma_handle = virt_to_phys(ret) - PFN_PHYS(dev->dma_pfn_offset);
*dma_handle = virt_to_phys(ret);
if (!WARN_ON(!dev))
*dma_handle -= PFN_PHYS(dev->dma_pfn_offset);
return ret_nocache;
}
@ -69,9 +71,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
unsigned long attrs)
{
int order = get_order(size);
unsigned long pfn = (dma_handle >> PAGE_SHIFT) + dev->dma_pfn_offset;
unsigned long pfn = dma_handle >> PAGE_SHIFT;
int k;
if (!WARN_ON(!dev))
pfn += dev->dma_pfn_offset;
for (k = 0; k < (1 << order); k++)
__free_pages(pfn_to_page(pfn + k), 0);
@ -143,7 +148,7 @@ int __init platform_resource_setup_memory(struct platform_device *pdev,
if (!memsize)
return 0;
buf = dma_alloc_coherent(NULL, memsize, &dma_handle, GFP_KERNEL);
buf = dma_alloc_coherent(&pdev->dev, memsize, &dma_handle, GFP_KERNEL);
if (!buf) {
pr_warning("%s: unable to allocate memory\n", name);
return -ENOMEM;

68
arch/sh/mm/init.c
View File

@ -211,59 +211,15 @@ void __init allocate_pgdat(unsigned int nid)
NODE_DATA(nid) = __va(phys);
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
#endif
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
}
static void __init bootmem_init_one_node(unsigned int nid)
{
unsigned long total_pages, paddr;
unsigned long end_pfn;
struct pglist_data *p;
p = NODE_DATA(nid);
/* Nothing to do.. */
if (!p->node_spanned_pages)
return;
end_pfn = pgdat_end_pfn(p);
total_pages = bootmem_bootmap_pages(p->node_spanned_pages);
paddr = memblock_alloc(total_pages << PAGE_SHIFT, PAGE_SIZE);
if (!paddr)
panic("Can't allocate bootmap for nid[%d]\n", nid);
init_bootmem_node(p, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn);
free_bootmem_with_active_regions(nid, end_pfn);
/*
* XXX Handle initial reservations for the system memory node
* only for the moment, we'll refactor this later for handling
* reservations in other nodes.
*/
if (nid == 0) {
struct memblock_region *reg;
/* Reserve the sections we're already using. */
for_each_memblock(reserved, reg) {
reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
}
}
sparse_memory_present_with_active_regions(nid);
}
static void __init do_init_bootmem(void)
{
struct memblock_region *reg;
int i;
/* Add active regions with valid PFNs. */
for_each_memblock(memory, reg) {
@ -279,9 +235,12 @@ static void __init do_init_bootmem(void)
plat_mem_setup();
for_each_online_node(i)
bootmem_init_one_node(i);
for_each_memblock(memory, reg) {
int nid = memblock_get_region_node(reg);
memory_present(nid, memblock_region_memory_base_pfn(reg),
memblock_region_memory_end_pfn(reg));
}
sparse_init();
}
@ -322,7 +281,6 @@ void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
unsigned long vaddr, end;
int nid;
sh_mv.mv_mem_init();
@ -377,21 +335,7 @@ void __init paging_init(void)
kmap_coherent_init();
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long low, start_pfn;
start_pfn = pgdat->bdata->node_min_pfn;
low = pgdat->bdata->node_low_pfn;
if (max_zone_pfns[ZONE_NORMAL] < low)
max_zone_pfns[ZONE_NORMAL] = low;
printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
nid, start_pfn, low);
}
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
free_area_init_nodes(max_zone_pfns);
}

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