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irqchip updates for v4.12 

- Unify gemini and moxa irqchips under the faraday banner
 - Extend mtk-sysirq to deal with multiple MMIO regions
 - ACPI/IORT support for GICv3 ITS platform MSI
 - ACPI support for mbigen
 - Add mtk-cirq wakeup interrupt controller driver
 - Atmel aic5 suspend support
 - Allow GPCv2 to be probed both as an irqchip and a device
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Merge tag 'irqchip-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier

 - Unify gemini and moxa irqchips under the faraday banner
 - Extend mtk-sysirq to deal with multiple MMIO regions
 - ACPI/IORT support for GICv3 ITS platform MSI
 - ACPI support for mbigen
 - Add mtk-cirq wakeup interrupt controller driver
 - Atmel aic5 suspend support
 - Allow GPCv2 to be probed both as an irqchip and a device
This commit is contained in:
Thomas Gleixner 2017-04-15 15:31:11 +02:00
parent d170fe7dd9 9d4b5bdc5b
commit d1b25279c1
788 changed files with 10581 additions and 6275 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/arm64/silicon-errata.txt
View File

@ -68,3 +68,4 @@ stable kernels.
| | | | |
| Qualcomm Tech. | Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 |
| Qualcomm Tech. | Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 |
| Qualcomm Tech. | QDF2400 ITS | E0065 | QCOM_QDF2400_ERRATUM_0065 |

11
Documentation/cgroup-v2.txt
View File

@ -1142,16 +1142,17 @@ used by the kernel.
pids.max
A read-write single value file which exists on non-root cgroups. The
default is "max".
A read-write single value file which exists on non-root
cgroups. The default is "max".
Hard limit of number of processes.
Hard limit of number of processes.
pids.current
A read-only single value file which exists on all cgroups.
A read-only single value file which exists on all cgroups.
The number of processes currently in the cgroup and its descendants.
The number of processes currently in the cgroup and its
descendants.
Organisational operations are not blocked by cgroup policies, so it is
possible to have pids.current > pids.max. This can be done by either

6
Documentation/devicetree/bindings/arm/marvell/cp110-system-controller0.txt
View File

@ -45,7 +45,7 @@ The following clocks are available:
- 1 15 SATA
- 1 16 SATA USB
- 1 17 Main
- 1 18 SD/MMC
- 1 18 SD/MMC/GOP
- 1 21 Slow IO (SPI, NOR, BootROM, I2C, UART)
- 1 22 USB3H0
- 1 23 USB3H1
@ -65,7 +65,7 @@ Required properties:
"cpm-audio", "cpm-communit", "cpm-nand", "cpm-ppv2", "cpm-sdio",
"cpm-mg-domain", "cpm-mg-core", "cpm-xor1", "cpm-xor0", "cpm-gop-dp", "none",
"cpm-pcie_x10", "cpm-pcie_x11", "cpm-pcie_x4", "cpm-pcie-xor", "cpm-sata",
"cpm-sata-usb", "cpm-main", "cpm-sd-mmc", "none", "none", "cpm-slow-io",
"cpm-sata-usb", "cpm-main", "cpm-sd-mmc-gop", "none", "none", "cpm-slow-io",
"cpm-usb3h0", "cpm-usb3h1", "cpm-usb3dev", "cpm-eip150", "cpm-eip197";
Example:
@ -78,6 +78,6 @@ Example:
gate-clock-output-names = "cpm-audio", "cpm-communit", "cpm-nand", "cpm-ppv2", "cpm-sdio",
"cpm-mg-domain", "cpm-mg-core", "cpm-xor1", "cpm-xor0", "cpm-gop-dp", "none",
"cpm-pcie_x10", "cpm-pcie_x11", "cpm-pcie_x4", "cpm-pcie-xor", "cpm-sata",
"cpm-sata-usb", "cpm-main", "cpm-sd-mmc", "none", "none", "cpm-slow-io",
"cpm-sata-usb", "cpm-main", "cpm-sd-mmc-gop", "none", "none", "cpm-slow-io",
"cpm-usb3h0", "cpm-usb3h1", "cpm-usb3dev", "cpm-eip150", "cpm-eip197";
};

1
Documentation/devicetree/bindings/display/exynos/exynos_dsim.txt
View File

@ -4,7 +4,6 @@ Required properties:
- compatible: value should be one of the following
"samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */
"samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */
"samsung,exynos4415-mipi-dsi" /* for Exynos4415 SoC */
"samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */
"samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */
"samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */

1
Documentation/devicetree/bindings/display/exynos/samsung-fimd.txt
View File

@ -11,7 +11,6 @@ Required properties:
"samsung,s5pv210-fimd"; /* for S5PV210 SoC */
"samsung,exynos3250-fimd"; /* for Exynos3250/3472 SoCs */
"samsung,exynos4210-fimd"; /* for Exynos4 SoCs */
"samsung,exynos4415-fimd"; /* for Exynos4415 SoC */
"samsung,exynos5250-fimd"; /* for Exynos5250 SoCs */
"samsung,exynos5420-fimd"; /* for Exynos5420/5422/5800 SoCs */

11
Documentation/devicetree/bindings/interrupt-controller/cortina,gemini-interrupt-controller.txt → Documentation/devicetree/bindings/interrupt-controller/faraday,ftintc010.txt
View File

@ -1,9 +1,12 @@
* Cortina Systems Gemini interrupt controller
* Faraday Technologt FTINTC010 interrupt controller
This interrupt controller is found on the Gemini SoCs.
This interrupt controller is a stock IP block from Faraday Technology found
in the Gemini SoCs and other designs.
Required properties:
- compatible: must be "cortina,gemini-interrupt-controller"
- compatible: must be one of
"faraday,ftintc010"
"cortina,gemini-interrupt-controller" (deprecated)
- reg: The register bank for the interrupt controller.
- interrupt-controller: Identifies the node as an interrupt controller
- #interrupt-cells: The number of cells to define the interrupts.
@ -15,7 +18,7 @@ Required properties:
Example:
interrupt-controller@48000000 {
compatible = "cortina,gemini-interrupt-controller";
compatible = "faraday,ftintc010"
reg = <0x48000000 0x1000>;
interrupt-controller;
#interrupt-cells = <2>;

35
Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt Normal file
View File

@ -0,0 +1,35 @@
* Mediatek 27xx cirq
In Mediatek SOCs, the CIRQ is a low power interrupt controller designed to
work outside MCUSYS which comprises with Cortex-Ax cores,CCI and GIC.
The external interrupts (outside MCUSYS) will feed through CIRQ and connect
to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive
interrupts and generate a pulse signal to parent interrupt controller when
flush command is executed. With CIRQ, MCUSYS can be completely turned off
to improve the system power consumption without losing interrupts.
Required properties:
- compatible: should be one of
- "mediatek,mt2701-cirq" for mt2701 CIRQ
- "mediatek,mt8135-cirq" for mt8135 CIRQ
- "mediatek,mt8173-cirq" for mt8173 CIRQ
and "mediatek,cirq" as a fallback.
- interrupt-controller : Identifies the node as an interrupt controller.
- #interrupt-cells : Use the same format as specified by GIC in arm,gic.txt.
- interrupt-parent: phandle of irq parent for cirq. The parent must
use the same interrupt-cells format as GIC.
- reg: Physical base address of the cirq registers and length of memory
mapped region.
- mediatek,ext-irq-range: Identifies external irq number range in different
SOCs.
Example:
cirq: interrupt-controller@10204000 {
compatible = "mediatek,mt2701-cirq",
"mediatek,mtk-cirq";
interrupt-controller;
#interrupt-cells = <3>;
interrupt-parent = <&sysirq>;
reg = <0 0x10204000 0 0x400>;
mediatek,ext-irq-start = <32 200>;
};

11
Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
View File

@ -21,13 +21,16 @@ Required properties:
- interrupt-parent: phandle of irq parent for sysirq. The parent must
use the same interrupt-cells format as GIC.
- reg: Physical base address of the intpol registers and length of memory
mapped region.
mapped region. Could be multiple bases here. Ex: mt6797 needs 2 reg, others
need 1.
Example:
sysirq: interrupt-controller@10200100 {
compatible = "mediatek,mt6589-sysirq", "mediatek,mt6577-sysirq";
sysirq: intpol-controller@10200620 {
compatible = "mediatek,mt6797-sysirq",
"mediatek,mt6577-sysirq";
interrupt-controller;
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
reg = <0 0x10200100 0 0x1c>;
reg = <0 0x10220620 0 0x20>,
<0 0x10220690 0 0x10>;
};

2
Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt
View File

@ -13,7 +13,7 @@ Required Properties:
- "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following,
before RK3288
- "rockchip,rk3288-dw-mshc": for Rockchip RK3288
- "rockchip,rk1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK1108
- "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108
- "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036
- "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368
- "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399

39
Documentation/devicetree/bindings/phy/brcm,nsp-usb3-phy.txt
View File

@ -1,39 +0,0 @@
Broadcom USB3 phy binding for northstar plus SoC
The USB3 phy is internal to the SoC and is accessed using mdio interface.
Required mdio bus properties:
- reg: Should be 0x0 for SoC internal USB3 phy
- #address-cells: must be 1
- #size-cells: must be 0
Required USB3 PHY properties:
- compatible: should be "brcm,nsp-usb3-phy"
- reg: USB3 Phy address on SoC internal MDIO bus and it should be 0x10.
- usb3-ctrl-syscon: handler of syscon node defining physical address
of usb3 control register.
- #phy-cells: must be 0
Required usb3 control properties:
- compatible: should be "brcm,nsp-usb3-ctrl"
- reg: offset and length of the control registers
Example:
mdio@0 {
reg = <0x0>;
#address-cells = <1>;
#size-cells = <0>;
usb3_phy: usb-phy@10 {
compatible = "brcm,nsp-usb3-phy";
reg = <0x10>;
usb3-ctrl-syscon = <&usb3_ctrl>;
#phy-cells = <0>;
status = "disabled";
};
};
usb3_ctrl: syscon@104408 {
compatible = "brcm,nsp-usb3-ctrl", "syscon";
reg = <0x104408 0x3fc>;
};

62
Documentation/devicetree/bindings/powerpc/4xx/emac.txt
View File

@ -71,6 +71,9 @@
For Axon it can be absent, though my current driver
doesn't handle phy-address yet so for now, keep
0x00ffffff in it.
- phy-handle : Used to describe configurations where a external PHY
is used. Please refer to:
Documentation/devicetree/bindings/net/ethernet.txt
- rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec
operations (if absent the value is the same as
rx-fifo-size). For Axon, either absent or 2048.
@ -81,8 +84,22 @@
offload, phandle of the TAH device node.
- tah-channel : 1 cell, optional. If appropriate, channel used on the
TAH engine.
- fixed-link : Fixed-link subnode describing a link to a non-MDIO
managed entity. See
Documentation/devicetree/bindings/net/fixed-link.txt
for details.
- mdio subnode : When the EMAC has a phy connected to its local
mdio, which us supported by the kernel's network
PHY library in drivers/net/phy, there must be device
tree subnode with the following required properties:
- #address-cells: Must be <1>.
- #size-cells: Must be <0>.
Example:
For PHY definitions: Please refer to
Documentation/devicetree/bindings/net/phy.txt and
Documentation/devicetree/bindings/net/ethernet.txt
Examples:
EMAC0: ethernet@40000800 {
device_type = "network";
@ -104,6 +121,48 @@
zmii-channel = <0>;
};
EMAC1: ethernet@ef600c00 {
device_type = "network";
compatible = "ibm,emac-apm821xx", "ibm,emac4sync";
interrupt-parent = <&EMAC1>;
interrupts = <0 1>;
#interrupt-cells = <1>;
#address-cells = <0>;
#size-cells = <0>;
interrupt-map = <0 &UIC2 0x10 IRQ_TYPE_LEVEL_HIGH /* Status */
1 &UIC2 0x14 IRQ_TYPE_LEVEL_HIGH /* Wake */>;
reg = <0xef600c00 0x000000c4>;
local-mac-address = [000000000000]; /* Filled in by U-Boot */
mal-device = <&MAL0>;
mal-tx-channel = <0>;
mal-rx-channel = <0>;
cell-index = <0>;
max-frame-size = <9000>;
rx-fifo-size = <16384>;
tx-fifo-size = <2048>;
fifo-entry-size = <10>;
phy-mode = "rgmii";
phy-handle = <&phy0>;
phy-map = <0x00000000>;
rgmii-device = <&RGMII0>;
rgmii-channel = <0>;
tah-device = <&TAH0>;
tah-channel = <0>;
has-inverted-stacr-oc;
has-new-stacr-staopc;
mdio {
#address-cells = <1>;
#size-cells = <0>;
phy0: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
};
};
};
ii) McMAL node
Required properties:
@ -145,4 +204,3 @@
- revision : as provided by the RGMII new version register if
available.
For Axon: 0x0000012a

5
Documentation/extcon/intel-int3496.txt
View File

@ -20,3 +20,8 @@ Index 1: The output gpio for enabling Vbus output from the device to the otg
Index 2: The output gpio for muxing of the data pins between the USB host and
the USB peripheral controller, write 1 to mux to the peripheral
controller
There is a mapping between indices and GPIO connection IDs as follows
id index 0
vbus index 1
mux index 2

4
Documentation/gcc-plugins.txt
View File

@ -18,8 +18,8 @@ because gcc versions 4.5 and 4.6 are compiled by a C compiler,
gcc-4.7 can be compiled by a C or a C++ compiler,
and versions 4.8+ can only be compiled by a C++ compiler.
Currently the GCC plugin infrastructure supports only the x86, arm and arm64
architectures.
Currently the GCC plugin infrastructure supports only the x86, arm, arm64 and
powerpc architectures.
This infrastructure was ported from grsecurity [6] and PaX [7].

3
Documentation/networking/ip-sysctl.txt
View File

@ -1006,7 +1006,8 @@ accept_redirects - BOOLEAN
FALSE (router)
forwarding - BOOLEAN
Enable IP forwarding on this interface.
Enable IP forwarding on this interface. This controls whether packets
received _on_ this interface can be forwarded.
mc_forwarding - BOOLEAN
Do multicast routing. The kernel needs to be compiled with CONFIG_MROUTE

4
Documentation/virtual/kvm/api.txt
View File

@ -951,6 +951,10 @@ This ioctl allows the user to create or modify a guest physical memory
slot. When changing an existing slot, it may be moved in the guest
physical memory space, or its flags may be modified. It may not be
resized. Slots may not overlap in guest physical address space.
Bits 0-15 of "slot" specifies the slot id and this value should be
less than the maximum number of user memory slots supported per VM.
The maximum allowed slots can be queried using KVM_CAP_NR_MEMSLOTS,
if this capability is supported by the architecture.
If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of "slot"
specifies the address space which is being modified. They must be

18
MAINTAINERS
View File

@ -3216,7 +3216,6 @@ F: drivers/platform/chrome/
CISCO VIC ETHERNET NIC DRIVER
M: Christian Benvenuti <benve@cisco.com>
M: Sujith Sankar <ssujith@cisco.com>
M: Govindarajulu Varadarajan <_govind@gmx.com>
M: Neel Patel <neepatel@cisco.com>
S: Supported
@ -7774,13 +7773,6 @@ F: include/net/mac80211.h
F: net/mac80211/
F: drivers/net/wireless/mac80211_hwsim.[ch]
MACVLAN DRIVER
M: Patrick McHardy <kaber@trash.net>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/macvlan.c
F: include/linux/if_macvlan.h
MAILBOX API
M: Jassi Brar <jassisinghbrar@gmail.com>
L: linux-kernel@vger.kernel.org
@ -7853,6 +7845,8 @@ F: drivers/net/ethernet/marvell/mvneta.*
MARVELL MWIFIEX WIRELESS DRIVER
M: Amitkumar Karwar <akarwar@marvell.com>
M: Nishant Sarmukadam <nishants@marvell.com>
M: Ganapathi Bhat <gbhat@marvell.com>
M: Xinming Hu <huxm@marvell.com>
L: linux-wireless@vger.kernel.org
S: Maintained
F: drivers/net/wireless/marvell/mwifiex/
@ -13383,14 +13377,6 @@ W: https://linuxtv.org
S: Maintained
F: drivers/media/platform/vivid/*
VLAN (802.1Q)
M: Patrick McHardy <kaber@trash.net>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/macvlan.c
F: include/linux/if_*vlan.h
F: net/8021q/
VLYNQ BUS
M: Florian Fainelli <f.fainelli@gmail.com>
L: openwrt-devel@lists.openwrt.org (subscribers-only)

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 11
SUBLEVEL = 0
EXTRAVERSION = -rc1
EXTRAVERSION = -rc4
NAME = Fearless Coyote
# *DOCUMENTATION*

4
arch/arm/boot/dts/am335x-pcm-953.dtsi
View File

@ -63,14 +63,14 @@
label = "home";
linux,code = <KEY_HOME>;
gpios = <&gpio3 7 GPIO_ACTIVE_HIGH>;
gpio-key,wakeup;
wakeup-source;
};
button@1 {
label = "menu";
linux,code = <KEY_MENU>;
gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
gpio-key,wakeup;
wakeup-source;
};
};

14
arch/arm/boot/dts/am57xx-idk-common.dtsi
View File

@ -315,6 +315,13 @@
/* ID & VBUS GPIOs provided in board dts */
};
};
tpic2810: tpic2810@60 {
compatible = "ti,tpic2810";
reg = <0x60>;
gpio-controller;
#gpio-cells = <2>;
};
};
&mcspi3 {
@ -330,13 +337,6 @@
spi-max-frequency = <1000000>;
spi-cpol;
};
tpic2810: tpic2810@60 {
compatible = "ti,tpic2810";
reg = <0x60>;
gpio-controller;
#gpio-cells = <2>;
};
};
&uart3 {

4
arch/arm/boot/dts/bcm5301x.dtsi
View File

@ -66,14 +66,14 @@
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>;
};
local-timer@20600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0x20600 0x100>;
interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
interrupts = <GIC_PPI 13 IRQ_TYPE_EDGE_RISING>;
clocks = <&periph_clk>;
};

5
arch/arm/boot/dts/bcm953012k.dts
View File

@ -48,15 +48,14 @@
};
memory {
reg = <0x00000000 0x10000000>;
reg = <0x80000000 0x10000000>;
};
};
&uart0 {
clock-frequency = <62499840>;
status = "okay";
};
&uart1 {
clock-frequency = <62499840>;
status = "okay";
};

1
arch/arm/boot/dts/bcm958522er.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm958525er.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm958525xmc.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 31 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm958622hr.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm958623hr.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm958625hr.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

1
arch/arm/boot/dts/bcm988312hr.dts
View File

@ -55,6 +55,7 @@
gpio-restart {
compatible = "gpio-restart";
gpios = <&gpioa 15 GPIO_ACTIVE_LOW>;
open-source;
priority = <200>;
};
};

5
arch/arm/boot/dts/imx6sx-udoo-neo.dtsi
View File

@ -121,11 +121,6 @@
};
};
&cpu0 {
arm-supply = <&sw1a_reg>;
soc-supply = <&sw1c_reg>;
};
&fec1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_enet1>;

2
arch/arm/boot/dts/sama5d2.dtsi
View File

@ -266,7 +266,7 @@
};
usb1: ohci@00400000 {
compatible = "atmel,sama5d2-ohci", "usb-ohci";
compatible = "atmel,at91rm9200-ohci", "usb-ohci";
reg = <0x00400000 0x100000>;
interrupts = <41 IRQ_TYPE_LEVEL_HIGH 2>;
clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;

19
arch/arm/boot/dts/ste-dbx5x0.dtsi
View File

@ -14,6 +14,7 @@
#include <dt-bindings/mfd/dbx500-prcmu.h>
#include <dt-bindings/arm/ux500_pm_domains.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/clock/ste-ab8500.h>
#include "skeleton.dtsi"
/ {
@ -603,6 +604,11 @@
interrupt-controller;
#interrupt-cells = <2>;
ab8500_clock: clock-controller {
compatible = "stericsson,ab8500-clk";
#clock-cells = <1>;
};
ab8500_gpio: ab8500-gpio {
compatible = "stericsson,ab8500-gpio";
gpio-controller;
@ -686,6 +692,8 @@
ab8500-pwm {
compatible = "stericsson,ab8500-pwm";
clocks = <&ab8500_clock AB8500_SYSCLK_INT>;
clock-names = "intclk";
};
ab8500-debugfs {
@ -700,6 +708,9 @@
V-AMIC2-supply = <&ab8500_ldo_anamic2_reg>;
V-DMIC-supply = <&ab8500_ldo_dmic_reg>;
clocks = <&ab8500_clock AB8500_SYSCLK_AUDIO>;
clock-names = "audioclk";
stericsson,earpeice-cmv = <950>; /* Units in mV. */
};
@ -1095,6 +1106,14 @@
status = "disabled";
};
sound {
compatible = "stericsson,snd-soc-mop500";
stericsson,cpu-dai = <&msp1 &msp3>;
stericsson,audio-codec = <&codec>;
clocks = <&prcmu_clk PRCMU_SYSCLK>, <&ab8500_clock AB8500_SYSCLK_ULP>, <&ab8500_clock AB8500_SYSCLK_INT>;
clock-names = "sysclk", "ulpclk", "intclk";
};
msp0: msp@80123000 {
compatible = "stericsson,ux500-msp-i2s";
reg = <0x80123000 0x1000>;

9
arch/arm/boot/dts/ste-href.dtsi
View File

@ -186,15 +186,6 @@
status = "okay";
};
sound {
compatible = "stericsson,snd-soc-mop500";
stericsson,cpu-dai = <&msp1 &msp3>;
stericsson,audio-codec = <&codec>;
clocks = <&prcmu_clk PRCMU_SYSCLK>;
clock-names = "sysclk";
};
msp0: msp@80123000 {
pinctrl-names = "default";
pinctrl-0 = <&msp0_default_mode>;

9
arch/arm/boot/dts/ste-snowball.dts
View File

@ -159,15 +159,6 @@
"", "", "", "", "", "", "", "";
};
sound {
compatible = "stericsson,snd-soc-mop500";
stericsson,cpu-dai = <&msp1 &msp3>;
stericsson,audio-codec = <&codec>;
clocks = <&prcmu_clk PRCMU_SYSCLK>;
clock-names = "sysclk";
};
msp0: msp@80123000 {
pinctrl-names = "default";
pinctrl-0 = <&msp0_default_mode>;

2
arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
View File

@ -167,7 +167,7 @@
reg = <8>;
label = "cpu";
ethernet = <&gmac>;
phy-mode = "rgmii";
phy-mode = "rgmii-txid";
fixed-link {
speed = <1000>;
full-duplex;

2
arch/arm/boot/dts/sun8i-a23-a33.dtsi
View File

@ -495,7 +495,7 @@
resets = <&ccu RST_BUS_GPU>;
assigned-clocks = <&ccu CLK_GPU>;
assigned-clock-rates = <408000000>;
assigned-clock-rates = <384000000>;
};
gic: interrupt-controller@01c81000 {

7
arch/arm/boot/dts/sun8i-reference-design-tablet.dtsi
View File

@ -50,8 +50,6 @@
backlight: backlight {
compatible = "pwm-backlight";
pinctrl-names = "default";
pinctrl-0 = <&bl_en_pin>;
pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
default-brightness-level = <8>;
@ -93,11 +91,6 @@
};
&pio {
bl_en_pin: bl_en_pin@0 {
pins = "PH6";
function = "gpio_in";
};
mmc0_cd_pin: mmc0_cd_pin@0 {
pins = "PB4";
function = "gpio_in";

1
arch/arm/configs/omap2plus_defconfig
View File

@ -188,6 +188,7 @@ CONFIG_WL12XX=m
CONFIG_WL18XX=m
CONFIG_WLCORE_SPI=m
CONFIG_WLCORE_SDIO=m
CONFIG_INPUT_MOUSEDEV=m
CONFIG_INPUT_JOYDEV=m
CONFIG_INPUT_EVDEV=m
CONFIG_KEYBOARD_ATKBD=m

1
arch/arm/include/asm/kvm_arm.h
View File

@ -209,6 +209,7 @@
#define HSR_EC_IABT_HYP (0x21)
#define HSR_EC_DABT (0x24)
#define HSR_EC_DABT_HYP (0x25)
#define HSR_EC_MAX (0x3f)
#define HSR_WFI_IS_WFE (_AC(1, UL) << 0)

1
arch/arm/include/asm/kvm_host.h
View File

@ -30,7 +30,6 @@
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
#define KVM_USER_MEM_SLOTS 32
#define KVM_PRIVATE_MEM_SLOTS 4
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#define KVM_HAVE_ONE_REG
#define KVM_HALT_POLL_NS_DEFAULT 500000

3
arch/arm/kvm/arm.c
View File

@ -221,6 +221,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_MAX_VCPUS:
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_NR_MEMSLOTS:
r = KVM_USER_MEM_SLOTS;
break;
case KVM_CAP_MSI_DEVID:
if (!kvm)
r = -EINVAL;

19
arch/arm/kvm/handle_exit.c
View File

@ -79,7 +79,19 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
return 1;
}
static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
u32 hsr = kvm_vcpu_get_hsr(vcpu);
kvm_pr_unimpl("Unknown exception class: hsr: %#08x\n",
hsr);
kvm_inject_undefined(vcpu);
return 1;
}
static exit_handle_fn arm_exit_handlers[] = {
[0 ... HSR_EC_MAX] = kvm_handle_unknown_ec,
[HSR_EC_WFI] = kvm_handle_wfx,
[HSR_EC_CP15_32] = kvm_handle_cp15_32,
[HSR_EC_CP15_64] = kvm_handle_cp15_64,
@ -98,13 +110,6 @@ static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
{
u8 hsr_ec = kvm_vcpu_trap_get_class(vcpu);
if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
!arm_exit_handlers[hsr_ec]) {
kvm_err("Unknown exception class: hsr: %#08x\n",
(unsigned int)kvm_vcpu_get_hsr(vcpu));
BUG();
}
return arm_exit_handlers[hsr_ec];
}

18
arch/arm/mach-at91/pm.c
View File

@ -289,6 +289,22 @@ static void at91_ddr_standby(void)
at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
}
static void sama5d3_ddr_standby(void)
{
u32 lpr0;
u32 saved_lpr0;
saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR);
lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB;
lpr0 |= AT91_DDRSDRC_LPCB_POWER_DOWN;
at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
cpu_do_idle();
at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
}
/* We manage both DDRAM/SDRAM controllers, we need more than one value to
* remember.
*/
@ -323,7 +339,7 @@ static const struct of_device_id const ramc_ids[] __initconst = {
{ .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby },
{ .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby },
{ .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby },
{ .compatible = "atmel,sama5d3-ddramc", .data = at91_ddr_standby },
{ .compatible = "atmel,sama5d3-ddramc", .data = sama5d3_ddr_standby },
{ /*sentinel*/ }
};

2
arch/arm/mach-moxart/Kconfig
View File

@ -3,8 +3,8 @@ menuconfig ARCH_MOXART
depends on ARCH_MULTI_V4
select CPU_FA526
select ARM_DMA_MEM_BUFFERABLE
select FARADAY_FTINTC010
select MOXART_TIMER
select GENERIC_IRQ_CHIP
select GPIOLIB
select PHYLIB if NETDEVICES
help

3
arch/arm/mach-omap2/Makefile
View File

@ -241,6 +241,3 @@ obj-$(CONFIG_MACH_OMAP2_TUSB6010) += usb-tusb6010.o
onenand-$(CONFIG_MTD_ONENAND_OMAP2) := gpmc-onenand.o
obj-y += $(onenand-m) $(onenand-y)
nand-$(CONFIG_MTD_NAND_OMAP2) := gpmc-nand.o
obj-y += $(nand-m) $(nand-y)

154
arch/arm/mach-omap2/gpmc-nand.c
View File

@ -1,154 +0,0 @@
/*
* gpmc-nand.c
*
* Copyright (C) 2009 Texas Instruments
* Vimal Singh <vimalsingh@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/omap-gpmc.h>
#include <linux/mtd/nand.h>
#include <linux/platform_data/mtd-nand-omap2.h>
#include <asm/mach/flash.h>
#include "soc.h"
/* minimum size for IO mapping */
#define NAND_IO_SIZE 4
static bool gpmc_hwecc_bch_capable(enum omap_ecc ecc_opt)
{
/* platforms which support all ECC schemes */
if (soc_is_am33xx() || soc_is_am43xx() || cpu_is_omap44xx() ||
soc_is_omap54xx() || soc_is_dra7xx())
return 1;
if (ecc_opt == OMAP_ECC_BCH4_CODE_HW_DETECTION_SW ||
ecc_opt == OMAP_ECC_BCH8_CODE_HW_DETECTION_SW) {
if (cpu_is_omap24xx())
return 0;
else if (cpu_is_omap3630() && (GET_OMAP_REVISION() == 0))
return 0;
else
return 1;
}
/* OMAP3xxx do not have ELM engine, so cannot support ECC schemes
* which require H/W based ECC error detection */
if ((cpu_is_omap34xx() || cpu_is_omap3630()) &&
((ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
(ecc_opt == OMAP_ECC_BCH8_CODE_HW)))
return 0;
/* legacy platforms support only HAM1 (1-bit Hamming) ECC scheme */
if (ecc_opt == OMAP_ECC_HAM1_CODE_HW ||
ecc_opt == OMAP_ECC_HAM1_CODE_SW)
return 1;
else
return 0;
}
/* This function will go away once the device-tree convertion is complete */
static void gpmc_set_legacy(struct omap_nand_platform_data *gpmc_nand_data,
struct gpmc_settings *s)
{
/* Enable RD PIN Monitoring Reg */
if (gpmc_nand_data->dev_ready) {
s->wait_on_read = true;
s->wait_on_write = true;
}
if (gpmc_nand_data->devsize == NAND_BUSWIDTH_16)
s->device_width = GPMC_DEVWIDTH_16BIT;
else
s->device_width = GPMC_DEVWIDTH_8BIT;
}
int gpmc_nand_init(struct omap_nand_platform_data *gpmc_nand_data,
struct gpmc_timings *gpmc_t)
{
int err = 0;
struct gpmc_settings s;
struct platform_device *pdev;
struct resource gpmc_nand_res[] = {
{ .flags = IORESOURCE_MEM, },
{ .flags = IORESOURCE_IRQ, },
{ .flags = IORESOURCE_IRQ, },
};
BUG_ON(gpmc_nand_data->cs >= GPMC_CS_NUM);
err = gpmc_cs_request(gpmc_nand_data->cs, NAND_IO_SIZE,
(unsigned long *)&gpmc_nand_res[0].start);
if (err < 0) {
pr_err("omap2-gpmc: Cannot request GPMC CS %d, error %d\n",
gpmc_nand_data->cs, err);
return err;
}
gpmc_nand_res[0].end = gpmc_nand_res[0].start + NAND_IO_SIZE - 1;
gpmc_nand_res[1].start = gpmc_get_client_irq(GPMC_IRQ_FIFOEVENTENABLE);
gpmc_nand_res[2].start = gpmc_get_client_irq(GPMC_IRQ_COUNT_EVENT);
memset(&s, 0, sizeof(struct gpmc_settings));
gpmc_set_legacy(gpmc_nand_data, &s);
s.device_nand = true;
if (gpmc_t) {
err = gpmc_cs_set_timings(gpmc_nand_data->cs, gpmc_t, &s);
if (err < 0) {
pr_err("omap2-gpmc: Unable to set gpmc timings: %d\n",
err);
return err;
}
}
err = gpmc_cs_program_settings(gpmc_nand_data->cs, &s);
if (err < 0)
goto out_free_cs;
err = gpmc_configure(GPMC_CONFIG_WP, 0);
if (err < 0)
goto out_free_cs;
if (!gpmc_hwecc_bch_capable(gpmc_nand_data->ecc_opt)) {
pr_err("omap2-nand: Unsupported NAND ECC scheme selected\n");
err = -EINVAL;
goto out_free_cs;
}
pdev = platform_device_alloc("omap2-nand", gpmc_nand_data->cs);
if (pdev) {
err = platform_device_add_resources(pdev, gpmc_nand_res,
ARRAY_SIZE(gpmc_nand_res));
if (!err)
pdev->dev.platform_data = gpmc_nand_data;
} else {
err = -ENOMEM;
}
if (err)
goto out_free_pdev;
err = platform_device_add(pdev);
if (err) {
dev_err(&pdev->dev, "Unable to register NAND device\n");
goto out_free_pdev;
}
return 0;
out_free_pdev:
platform_device_put(pdev);
out_free_cs:
gpmc_cs_free(gpmc_nand_data->cs);
return err;
}

10
arch/arm/mach-omap2/gpmc-onenand.c
View File

@ -367,7 +367,7 @@ static int gpmc_onenand_setup(void __iomem *onenand_base, int *freq_ptr)
return ret;
}
void gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
int gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
{
int err;
struct device *dev = &gpmc_onenand_device.dev;
@ -393,15 +393,17 @@ void gpmc_onenand_init(struct omap_onenand_platform_data *_onenand_data)
if (err < 0) {
dev_err(dev, "Cannot request GPMC CS %d, error %d\n",
gpmc_onenand_data->cs, err);
return;
return err;
}
gpmc_onenand_resource.end = gpmc_onenand_resource.start +
ONENAND_IO_SIZE - 1;
if (platform_device_register(&gpmc_onenand_device) < 0) {
err = platform_device_register(&gpmc_onenand_device);
if (err) {
dev_err(dev, "Unable to register OneNAND device\n");
gpmc_cs_free(gpmc_onenand_data->cs);
return;
}
return err;
}

3
arch/arm/mach-omap2/omap-headsmp.S
View File

@ -17,6 +17,7 @@
#include <linux/linkage.h>
#include <linux/init.h>
#include <asm/assembler.h>
#include "omap44xx.h"
@ -66,7 +67,7 @@ wait_2: ldr r2, =AUX_CORE_BOOT0_PA @ read from AuxCoreBoot0
cmp r0, r4
bne wait_2
ldr r12, =API_HYP_ENTRY
adr r0, hyp_boot
badr r0, hyp_boot
smc #0
hyp_boot:
b omap_secondary_startup

45
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
View File

@ -2112,11 +2112,20 @@ static struct omap_hwmod_ocp_if omap3_l4_core__i2c3 = {
};
/* L4 CORE -> SR1 interface */
static struct omap_hwmod_addr_space omap3_sr1_addr_space[] = {
{
.pa_start = OMAP34XX_SR1_BASE,
.pa_end = OMAP34XX_SR1_BASE + SZ_1K - 1,
.flags = ADDR_TYPE_RT,
},
{ },
};
static struct omap_hwmod_ocp_if omap34xx_l4_core__sr1 = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap34xx_sr1_hwmod,
.clk = "sr_l4_ick",
.addr = omap3_sr1_addr_space,
.user = OCP_USER_MPU,
};
@ -2124,15 +2133,25 @@ static struct omap_hwmod_ocp_if omap36xx_l4_core__sr1 = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap36xx_sr1_hwmod,
.clk = "sr_l4_ick",
.addr = omap3_sr1_addr_space,
.user = OCP_USER_MPU,
};
/* L4 CORE -> SR1 interface */
static struct omap_hwmod_addr_space omap3_sr2_addr_space[] = {
{
.pa_start = OMAP34XX_SR2_BASE,
.pa_end = OMAP34XX_SR2_BASE + SZ_1K - 1,
.flags = ADDR_TYPE_RT,
},
{ },
};
static struct omap_hwmod_ocp_if omap34xx_l4_core__sr2 = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap34xx_sr2_hwmod,
.clk = "sr_l4_ick",
.addr = omap3_sr2_addr_space,
.user = OCP_USER_MPU,
};
@ -2140,6 +2159,7 @@ static struct omap_hwmod_ocp_if omap36xx_l4_core__sr2 = {
.master = &omap3xxx_l4_core_hwmod,
.slave = &omap36xx_sr2_hwmod,
.clk = "sr_l4_ick",
.addr = omap3_sr2_addr_space,
.user = OCP_USER_MPU,
};
@ -3111,16 +3131,20 @@ static struct omap_hwmod_ocp_if *omap3xxx_dss_hwmod_ocp_ifs[] __initdata = {
* Return: 0 if device named @dev_name is not likely to be accessible,
* or 1 if it is likely to be accessible.
*/
static int __init omap3xxx_hwmod_is_hs_ip_block_usable(struct device_node *bus,
const char *dev_name)
static bool __init omap3xxx_hwmod_is_hs_ip_block_usable(struct device_node *bus,
const char *dev_name)
{
struct device_node *node;
bool available;
if (!bus)
return (omap_type() == OMAP2_DEVICE_TYPE_GP) ? 1 : 0;
return omap_type() == OMAP2_DEVICE_TYPE_GP;
if (of_device_is_available(of_find_node_by_name(bus, dev_name)))
return 1;
node = of_get_child_by_name(bus, dev_name);
available = of_device_is_available(node);
of_node_put(node);
return 0;
return available;
}
int __init omap3xxx_hwmod_init(void)
@ -3189,15 +3213,20 @@ int __init omap3xxx_hwmod_init(void)
if (h_sham && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "sham")) {
r = omap_hwmod_register_links(h_sham);
if (r < 0)
if (r < 0) {
of_node_put(bus);
return r;
}
}
if (h_aes && omap3xxx_hwmod_is_hs_ip_block_usable(bus, "aes")) {
r = omap_hwmod_register_links(h_aes);
if (r < 0)
if (r < 0) {
of_node_put(bus);
return r;
}
}
of_node_put(bus);
/*
* Register hwmod links specific to certain ES levels of a

1
arch/arm/tools/syscall.tbl
View File

@ -411,3 +411,4 @@
394 common pkey_mprotect sys_pkey_mprotect
395 common pkey_alloc sys_pkey_alloc
396 common pkey_free sys_pkey_free
397 common statx sys_statx

14
arch/arm64/Kconfig
View File

@ -508,6 +508,16 @@ config QCOM_FALKOR_ERRATUM_1009
If unsure, say Y.
config QCOM_QDF2400_ERRATUM_0065
bool "QDF2400 E0065: Incorrect GITS_TYPER.ITT_Entry_size"
default y
help
On Qualcomm Datacenter Technologies QDF2400 SoC, ITS hardware reports
ITE size incorrectly. The GITS_TYPER.ITT_Entry_size field should have
been indicated as 16Bytes (0xf), not 8Bytes (0x7).
If unsure, say Y.
endmenu
@ -1063,6 +1073,10 @@ config SYSVIPC_COMPAT
def_bool y
depends on COMPAT && SYSVIPC
config KEYS_COMPAT
def_bool y
depends on COMPAT && KEYS
endmenu
menu "Power management options"

11
arch/arm64/boot/dts/broadcom/ns2.dtsi
View File

@ -114,6 +114,7 @@
pcie0: pcie@20020000 {
compatible = "brcm,iproc-pcie";
reg = <0 0x20020000 0 0x1000>;
dma-coherent;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
@ -144,6 +145,7 @@
pcie4: pcie@50020000 {
compatible = "brcm,iproc-pcie";
reg = <0 0x50020000 0 0x1000>;
dma-coherent;
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0>;
@ -174,6 +176,7 @@
pcie8: pcie@60c00000 {
compatible = "brcm,iproc-pcie-paxc";
reg = <0 0x60c00000 0 0x1000>;
dma-coherent;
linux,pci-domain = <8>;
bus-range = <0x0 0x1>;
@ -203,6 +206,7 @@
<0x61030000 0x100>;
reg-names = "amac_base", "idm_base", "nicpm_base";
interrupts = <GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH>;
dma-coherent;
phy-handle = <&gphy0>;
phy-mode = "rgmii";
status = "disabled";
@ -213,6 +217,7 @@
reg = <0x612c0000 0x445>; /* PDC FS0 regs */
interrupts = <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
dma-coherent;
brcm,rx-status-len = <32>;
brcm,use-bcm-hdr;
};
@ -222,6 +227,7 @@
reg = <0x612e0000 0x445>; /* PDC FS1 regs */
interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
dma-coherent;
brcm,rx-status-len = <32>;
brcm,use-bcm-hdr;
};
@ -231,6 +237,7 @@
reg = <0x61300000 0x445>; /* PDC FS2 regs */
interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
dma-coherent;
brcm,rx-status-len = <32>;
brcm,use-bcm-hdr;
};
@ -240,6 +247,7 @@
reg = <0x61320000 0x445>; /* PDC FS3 regs */
interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
#mbox-cells = <1>;
dma-coherent;
brcm,rx-status-len = <32>;
brcm,use-bcm-hdr;
};
@ -644,6 +652,7 @@
sata: ahci@663f2000 {
compatible = "brcm,iproc-ahci", "generic-ahci";
reg = <0x663f2000 0x1000>;
dma-coherent;
reg-names = "ahci";
interrupts = <GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>;
#address-cells = <1>;
@ -667,6 +676,7 @@
compatible = "brcm,sdhci-iproc-cygnus";
reg = <0x66420000 0x100>;
interrupts = <GIC_SPI 421 IRQ_TYPE_LEVEL_HIGH>;
dma-coherent;
bus-width = <8>;
clocks = <&genpll_sw BCM_NS2_GENPLL_SW_SDIO_CLK>;
status = "disabled";
@ -676,6 +686,7 @@
compatible = "brcm,sdhci-iproc-cygnus";
reg = <0x66430000 0x100>;
interrupts = <GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>;
dma-coherent;
bus-width = <8>;
clocks = <&genpll_sw BCM_NS2_GENPLL_SW_SDIO_CLK>;
status = "disabled";

2
arch/arm64/include/asm/cpufeature.h
View File

@ -251,7 +251,7 @@ static inline bool system_supports_fpsimd(void)
static inline bool system_uses_ttbr0_pan(void)
{
return IS_ENABLED(CONFIG_ARM64_SW_TTBR0_PAN) &&
!cpus_have_cap(ARM64_HAS_PAN);
!cpus_have_const_cap(ARM64_HAS_PAN);
}
#endif /* __ASSEMBLY__ */

3
arch/arm64/include/asm/kvm_host.h
View File

@ -30,8 +30,7 @@
#define __KVM_HAVE_ARCH_INTC_INITIALIZED
#define KVM_USER_MEM_SLOTS 32
#define KVM_PRIVATE_MEM_SLOTS 4
#define KVM_USER_MEM_SLOTS 512
#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
#define KVM_HALT_POLL_NS_DEFAULT 500000

2
arch/arm64/include/asm/unistd.h
View File

@ -44,7 +44,7 @@
#define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2)
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5)
#define __NR_compat_syscalls 394
#define __NR_compat_syscalls 398
#endif
#define __ARCH_WANT_SYS_CLONE

8
arch/arm64/include/asm/unistd32.h
View File

@ -809,6 +809,14 @@ __SYSCALL(__NR_copy_file_range, sys_copy_file_range)
__SYSCALL(__NR_preadv2, compat_sys_preadv2)
#define __NR_pwritev2 393
__SYSCALL(__NR_pwritev2, compat_sys_pwritev2)
#define __NR_pkey_mprotect 394
__SYSCALL(__NR_pkey_mprotect, sys_pkey_mprotect)
#define __NR_pkey_alloc 395
__SYSCALL(__NR_pkey_alloc, sys_pkey_alloc)
#define __NR_pkey_free 396
__SYSCALL(__NR_pkey_free, sys_pkey_free)
#define __NR_statx 397
__SYSCALL(__NR_statx, sys_statx)
/*
* Please add new compat syscalls above this comment and update

2
arch/arm64/kernel/cpuidle.c
View File

@ -30,7 +30,7 @@ int arm_cpuidle_init(unsigned int cpu)
}
/**
* cpu_suspend() - function to enter a low-power idle state
* arm_cpuidle_suspend() - function to enter a low-power idle state
* @arg: argument to pass to CPU suspend operations
*
* Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU

10
arch/arm64/kernel/kaslr.c
View File

@ -131,11 +131,15 @@ u64 __init kaslr_early_init(u64 dt_phys, u64 modulo_offset)
/*
* The kernel Image should not extend across a 1GB/32MB/512MB alignment
* boundary (for 4KB/16KB/64KB granule kernels, respectively). If this
* happens, increase the KASLR offset by the size of the kernel image.
* happens, increase the KASLR offset by the size of the kernel image
* rounded up by SWAPPER_BLOCK_SIZE.
*/
if ((((u64)_text + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT) !=
(((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT))
offset = (offset + (u64)(_end - _text)) & mask;
(((u64)_end + offset + modulo_offset) >> SWAPPER_TABLE_SHIFT)) {
u64 kimg_sz = _end - _text;
offset = (offset + round_up(kimg_sz, SWAPPER_BLOCK_SIZE))
& mask;
}
if (IS_ENABLED(CONFIG_KASAN))
/*

6
arch/arm64/kernel/probes/kprobes.c
View File

@ -372,12 +372,6 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
return 0;
}
int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data)
{
return NOTIFY_DONE;
}
static void __kprobes kprobe_handler(struct pt_regs *regs)
{
struct kprobe *p, *cur_kprobe;

19
arch/arm64/kvm/handle_exit.c
View File

@ -135,7 +135,19 @@ static int kvm_handle_guest_debug(struct kvm_vcpu *vcpu, struct kvm_run *run)
return ret;
}
static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
u32 hsr = kvm_vcpu_get_hsr(vcpu);
kvm_pr_unimpl("Unknown exception class: hsr: %#08x -- %s\n",
hsr, esr_get_class_string(hsr));
kvm_inject_undefined(vcpu);
return 1;
}
static exit_handle_fn arm_exit_handlers[] = {
[0 ... ESR_ELx_EC_MAX] = kvm_handle_unknown_ec,
[ESR_ELx_EC_WFx] = kvm_handle_wfx,
[ESR_ELx_EC_CP15_32] = kvm_handle_cp15_32,
[ESR_ELx_EC_CP15_64] = kvm_handle_cp15_64,
@ -162,13 +174,6 @@ static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
u32 hsr = kvm_vcpu_get_hsr(vcpu);
u8 hsr_ec = ESR_ELx_EC(hsr);
if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
!arm_exit_handlers[hsr_ec]) {
kvm_err("Unknown exception class: hsr: %#08x -- %s\n",
hsr, esr_get_class_string(hsr));
BUG();
}
return arm_exit_handlers[hsr_ec];
}

64
arch/arm64/kvm/hyp/tlb.c
View File

@ -18,14 +18,62 @@
#include <asm/kvm_hyp.h>
#include <asm/tlbflush.h>
static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm)
{
u64 val;
/*
* With VHE enabled, we have HCR_EL2.{E2H,TGE} = {1,1}, and
* most TLB operations target EL2/EL0. In order to affect the
* guest TLBs (EL1/EL0), we need to change one of these two
* bits. Changing E2H is impossible (goodbye TTBR1_EL2), so
* let's flip TGE before executing the TLB operation.
*/
write_sysreg(kvm->arch.vttbr, vttbr_el2);
val = read_sysreg(hcr_el2);
val &= ~HCR_TGE;
write_sysreg(val, hcr_el2);
isb();
}
static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm)
{
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
}
static hyp_alternate_select(__tlb_switch_to_guest,
__tlb_switch_to_guest_nvhe,
__tlb_switch_to_guest_vhe,
ARM64_HAS_VIRT_HOST_EXTN);
static void __hyp_text __tlb_switch_to_host_vhe(struct kvm *kvm)
{
/*
* We're done with the TLB operation, let's restore the host's
* view of HCR_EL2.
*/
write_sysreg(0, vttbr_el2);
write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
}
static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm)
{
write_sysreg(0, vttbr_el2);
}
static hyp_alternate_select(__tlb_switch_to_host,
__tlb_switch_to_host_nvhe,
__tlb_switch_to_host_vhe,
ARM64_HAS_VIRT_HOST_EXTN);
void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
{
dsb(ishst);
/* Switch to requested VMID */
kvm = kern_hyp_va(kvm);
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
__tlb_switch_to_guest()(kvm);
/*
* We could do so much better if we had the VA as well.
@ -46,7 +94,7 @@ void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
dsb(ish);
isb();
write_sysreg(0, vttbr_el2);
__tlb_switch_to_host()(kvm);
}
void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
@ -55,14 +103,13 @@ void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
/* Switch to requested VMID */
kvm = kern_hyp_va(kvm);
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
__tlb_switch_to_guest()(kvm);
__tlbi(vmalls12e1is);
dsb(ish);
isb();
write_sysreg(0, vttbr_el2);
__tlb_switch_to_host()(kvm);
}
void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
@ -70,14 +117,13 @@ void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
struct kvm *kvm = kern_hyp_va(kern_hyp_va(vcpu)->kvm);
/* Switch to requested VMID */
write_sysreg(kvm->arch.vttbr, vttbr_el2);
isb();
__tlb_switch_to_guest()(kvm);
__tlbi(vmalle1);
dsb(nsh);
isb();
write_sysreg(0, vttbr_el2);
__tlb_switch_to_host()(kvm);
}
void __hyp_text __kvm_flush_vm_context(void)

2
arch/arm64/mm/kasan_init.c
View File

@ -162,7 +162,7 @@ void __init kasan_init(void)
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
vmemmap_populate(kimg_shadow_start, kimg_shadow_end,
pfn_to_nid(virt_to_pfn(_text)));
pfn_to_nid(virt_to_pfn(lm_alias(_text))));
/*
* vmemmap_populate() has populated the shadow region that covers the

8
arch/openrisc/include/asm/cmpxchg.h
View File

@ -77,7 +77,11 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
return val;
}
#define xchg(ptr, with) \
((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), sizeof(*(ptr))))
#define xchg(ptr, with) \
({ \
(__typeof__(*(ptr))) __xchg((unsigned long)(with), \
(ptr), \
sizeof(*(ptr))); \
})
#endif /* __ASM_OPENRISC_CMPXCHG_H */

2
arch/openrisc/include/asm/uaccess.h
View File

@ -211,7 +211,7 @@ do { \
case 1: __get_user_asm(x, ptr, retval, "l.lbz"); break; \
case 2: __get_user_asm(x, ptr, retval, "l.lhz"); break; \
case 4: __get_user_asm(x, ptr, retval, "l.lwz"); break; \
case 8: __get_user_asm2(x, ptr, retval); \
case 8: __get_user_asm2(x, ptr, retval); break; \
default: (x) = __get_user_bad(); \
} \
} while (0)

4
arch/openrisc/kernel/or32_ksyms.c
View File

@ -30,6 +30,7 @@
#include <asm/hardirq.h>
#include <asm/delay.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#define DECLARE_EXPORT(name) extern void name(void); EXPORT_SYMBOL(name)
@ -42,6 +43,9 @@ DECLARE_EXPORT(__muldi3);
DECLARE_EXPORT(__ashrdi3);
DECLARE_EXPORT(__ashldi3);
DECLARE_EXPORT(__lshrdi3);
DECLARE_EXPORT(__ucmpdi2);
EXPORT_SYMBOL(empty_zero_page);
EXPORT_SYMBOL(__copy_tofrom_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(memset);

1
arch/openrisc/kernel/process.c
View File

@ -90,6 +90,7 @@ void arch_cpu_idle(void)
}
void (*pm_power_off) (void) = machine_power_off;
EXPORT_SYMBOL(pm_power_off);
/*
* When a process does an "exec", machine state like FPU and debug

23
arch/parisc/include/asm/cacheflush.h
View File

@ -43,28 +43,9 @@ static inline void flush_kernel_dcache_page(struct page *page)
#define flush_kernel_dcache_range(start,size) \
flush_kernel_dcache_range_asm((start), (start)+(size));
/* vmap range flushes and invalidates. Architecturally, we don't need
* the invalidate, because the CPU should refuse to speculate once an
* area has been flushed, so invalidate is left empty */
static inline void flush_kernel_vmap_range(void *vaddr, int size)
{
unsigned long start = (unsigned long)vaddr;
flush_kernel_dcache_range_asm(start, start + size);
}
static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
{
unsigned long start = (unsigned long)vaddr;
void *cursor = vaddr;
for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
struct page *page = vmalloc_to_page(cursor);
if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
flush_kernel_dcache_page(page);
}
flush_kernel_dcache_range_asm(start, start + size);
}
void flush_kernel_vmap_range(void *vaddr, int size);
void invalidate_kernel_vmap_range(void *vaddr, int size);
#define flush_cache_vmap(start, end) flush_cache_all()
#define flush_cache_vunmap(start, end) flush_cache_all()

3
arch/parisc/include/asm/uaccess.h
View File

@ -32,7 +32,8 @@
* that put_user is the same as __put_user, etc.
*/
#define access_ok(type, uaddr, size) (1)
#define access_ok(type, uaddr, size) \
( (uaddr) == (uaddr) )
#define put_user __put_user
#define get_user __get_user

3
arch/parisc/include/uapi/asm/unistd.h
View File

@ -362,8 +362,9 @@
#define __NR_copy_file_range (__NR_Linux + 346)
#define __NR_preadv2 (__NR_Linux + 347)
#define __NR_pwritev2 (__NR_Linux + 348)
#define __NR_statx (__NR_Linux + 349)
#define __NR_Linux_syscalls (__NR_pwritev2 + 1)
#define __NR_Linux_syscalls (__NR_statx + 1)
#define __IGNORE_select /* newselect */

22
arch/parisc/kernel/cache.c
View File

@ -616,3 +616,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
}
}
void flush_kernel_vmap_range(void *vaddr, int size)
{
unsigned long start = (unsigned long)vaddr;
if ((unsigned long)size > parisc_cache_flush_threshold)
flush_data_cache();
else
flush_kernel_dcache_range_asm(start, start + size);
}
EXPORT_SYMBOL(flush_kernel_vmap_range);
void invalidate_kernel_vmap_range(void *vaddr, int size)
{
unsigned long start = (unsigned long)vaddr;
if ((unsigned long)size > parisc_cache_flush_threshold)
flush_data_cache();
else
flush_kernel_dcache_range_asm(start, start + size);
}
EXPORT_SYMBOL(invalidate_kernel_vmap_range);

8
arch/parisc/kernel/module.c
View File

@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
*/
*loc = fsel(val, addend);
break;
case R_PARISC_SECREL32:
/* 32-bit section relative address. */
*loc = fsel(val, addend);
break;
case R_PARISC_DPREL21L:
/* left 21 bit of relative address */
val = lrsel(val - dp, addend);
@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
*/
*loc = fsel(val, addend);
break;
case R_PARISC_SECREL32:
/* 32-bit section relative address. */
*loc = fsel(val, addend);
break;
case R_PARISC_FPTR64:
/* 64-bit function address */
if(in_local(me, (void *)(val + addend))) {

94
arch/parisc/kernel/perf.c
View File

@ -39,7 +39,7 @@
* the PDC INTRIGUE calls. This is done to eliminate bugs introduced
* in various PDC revisions. The code is much more maintainable
* and reliable this way vs having to debug on every version of PDC
* on every box.
* on every box.
*/
#include <linux/capability.h>
@ -195,8 +195,8 @@ static int perf_config(uint32_t *image_ptr);
static int perf_release(struct inode *inode, struct file *file);
static int perf_open(struct inode *inode, struct file *file);
static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
static ssize_t perf_write(struct file *file, const char __user *buf, size_t count,
loff_t *ppos);
static ssize_t perf_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos);
static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
static void perf_start_counters(void);
static int perf_stop_counters(uint32_t *raddr);
@ -222,7 +222,7 @@ extern void perf_intrigue_disable_perf_counters (void);
/*
* configure:
*
* Configure the cpu with a given data image. First turn off the counters,
* Configure the cpu with a given data image. First turn off the counters,
* then download the image, then turn the counters back on.
*/
static int perf_config(uint32_t *image_ptr)
@ -234,7 +234,7 @@ static int perf_config(uint32_t *image_ptr)
error = perf_stop_counters(raddr);
if (error != 0) {
printk("perf_config: perf_stop_counters = %ld\n", error);
return -EINVAL;
return -EINVAL;
}
printk("Preparing to write image\n");
@ -242,7 +242,7 @@ printk("Preparing to write image\n");
error = perf_write_image((uint64_t *)image_ptr);
if (error != 0) {
printk("perf_config: DOWNLOAD = %ld\n", error);
return -EINVAL;
return -EINVAL;
}
printk("Preparing to start counters\n");
@ -254,7 +254,7 @@ printk("Preparing to start counters\n");
}
/*
* Open the device and initialize all of its memory. The device is only
* Open the device and initialize all of its memory. The device is only
* opened once, but can be "queried" by multiple processes that know its
* file descriptor.
*/
@ -298,19 +298,19 @@ static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t
* called on the processor that the download should happen
* on.
*/
static ssize_t perf_write(struct file *file, const char __user *buf, size_t count,
loff_t *ppos)
static ssize_t perf_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
size_t image_size;
uint32_t image_type;
uint32_t interface_type;
uint32_t test;
if (perf_processor_interface == ONYX_INTF)
if (perf_processor_interface == ONYX_INTF)
image_size = PCXU_IMAGE_SIZE;
else if (perf_processor_interface == CUDA_INTF)
else if (perf_processor_interface == CUDA_INTF)
image_size = PCXW_IMAGE_SIZE;
else
else
return -EFAULT;
if (!capable(CAP_SYS_ADMIN))
@ -330,22 +330,22 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
/* First check the machine type is correct for
the requested image */
if (((perf_processor_interface == CUDA_INTF) &&
(interface_type != CUDA_INTF)) ||
((perf_processor_interface == ONYX_INTF) &&
(interface_type != ONYX_INTF)))
if (((perf_processor_interface == CUDA_INTF) &&
(interface_type != CUDA_INTF)) ||
((perf_processor_interface == ONYX_INTF) &&
(interface_type != ONYX_INTF)))
return -EINVAL;
/* Next check to make sure the requested image
is valid */
if (((interface_type == CUDA_INTF) &&
if (((interface_type == CUDA_INTF) &&
(test >= MAX_CUDA_IMAGES)) ||
((interface_type == ONYX_INTF) &&
(test >= MAX_ONYX_IMAGES)))
((interface_type == ONYX_INTF) &&
(test >= MAX_ONYX_IMAGES)))
return -EINVAL;
/* Copy the image into the processor */
if (interface_type == CUDA_INTF)
if (interface_type == CUDA_INTF)
return perf_config(cuda_images[test]);
else
return perf_config(onyx_images[test]);
@ -359,7 +359,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
static void perf_patch_images(void)
{
#if 0 /* FIXME!! */
/*
/*
* NOTE: this routine is VERY specific to the current TLB image.
* If the image is changed, this routine might also need to be changed.
*/
@ -367,9 +367,9 @@ static void perf_patch_images(void)
extern void $i_dtlb_miss_2_0();
extern void PA2_0_iva();
/*
/*
* We can only use the lower 32-bits, the upper 32-bits should be 0
* anyway given this is in the kernel
* anyway given this is in the kernel
*/
uint32_t itlb_addr = (uint32_t)&($i_itlb_miss_2_0);
uint32_t dtlb_addr = (uint32_t)&($i_dtlb_miss_2_0);
@ -377,21 +377,21 @@ static void perf_patch_images(void)
if (perf_processor_interface == ONYX_INTF) {
/* clear last 2 bytes */
onyx_images[TLBMISS][15] &= 0xffffff00;
onyx_images[TLBMISS][15] &= 0xffffff00;
/* set 2 bytes */
onyx_images[TLBMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
onyx_images[TLBMISS][16] = (dtlb_addr << 8)&0xffffff00;
onyx_images[TLBMISS][17] = itlb_addr;
/* clear last 2 bytes */
onyx_images[TLBHANDMISS][15] &= 0xffffff00;
onyx_images[TLBHANDMISS][15] &= 0xffffff00;
/* set 2 bytes */
onyx_images[TLBHANDMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
onyx_images[TLBHANDMISS][16] = (dtlb_addr << 8)&0xffffff00;
onyx_images[TLBHANDMISS][17] = itlb_addr;
/* clear last 2 bytes */
onyx_images[BIG_CPI][15] &= 0xffffff00;
onyx_images[BIG_CPI][15] &= 0xffffff00;
/* set 2 bytes */
onyx_images[BIG_CPI][15] |= (0x000000ff&((dtlb_addr) >> 24));
onyx_images[BIG_CPI][16] = (dtlb_addr << 8)&0xffffff00;
@ -404,24 +404,24 @@ static void perf_patch_images(void)
} else if (perf_processor_interface == CUDA_INTF) {
/* Cuda interface */
cuda_images[TLBMISS][16] =
cuda_images[TLBMISS][16] =
(cuda_images[TLBMISS][16]&0xffff0000) |
((dtlb_addr >> 8)&0x0000ffff);
cuda_images[TLBMISS][17] =
cuda_images[TLBMISS][17] =
((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
cuda_images[TLBMISS][18] = (itlb_addr << 16)&0xffff0000;
cuda_images[TLBHANDMISS][16] =
cuda_images[TLBHANDMISS][16] =
(cuda_images[TLBHANDMISS][16]&0xffff0000) |
((dtlb_addr >> 8)&0x0000ffff);
cuda_images[TLBHANDMISS][17] =
cuda_images[TLBHANDMISS][17] =
((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
cuda_images[TLBHANDMISS][18] = (itlb_addr << 16)&0xffff0000;
cuda_images[BIG_CPI][16] =
cuda_images[BIG_CPI][16] =
(cuda_images[BIG_CPI][16]&0xffff0000) |
((dtlb_addr >> 8)&0x0000ffff);
cuda_images[BIG_CPI][17] =
cuda_images[BIG_CPI][17] =
((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
cuda_images[BIG_CPI][18] = (itlb_addr << 16)&0xffff0000;
} else {
@ -433,7 +433,7 @@ static void perf_patch_images(void)
/*
* ioctl routine
* All routines effect the processor that they are executed on. Thus you
* All routines effect the processor that they are executed on. Thus you
* must be running on the processor that you wish to change.
*/
@ -459,7 +459,7 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
}
/* copy out the Counters */
if (copy_to_user((void __user *)arg, raddr,
if (copy_to_user((void __user *)arg, raddr,
sizeof (raddr)) != 0) {
error = -EFAULT;
break;
@ -487,7 +487,7 @@ static const struct file_operations perf_fops = {
.open = perf_open,
.release = perf_release
};
static struct miscdevice perf_dev = {
MISC_DYNAMIC_MINOR,
PA_PERF_DEV,
@ -595,7 +595,7 @@ static int perf_stop_counters(uint32_t *raddr)
/* OR sticky2 (bit 1496) to counter2 bit 32 */
tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
raddr[2] = (uint32_t)tmp64;
/* Counter3 is bits 1497 to 1528 */
tmp64 = (userbuf[23] >> 7) & 0x00000000ffffffff;
/* OR sticky3 (bit 1529) to counter3 bit 32 */
@ -617,7 +617,7 @@ static int perf_stop_counters(uint32_t *raddr)
userbuf[22] = 0;
userbuf[23] = 0;
/*
/*
* Write back the zeroed bytes + the image given
* the read was destructive.
*/
@ -625,13 +625,13 @@ static int perf_stop_counters(uint32_t *raddr)
} else {
/*
* Read RDR-15 which contains the counters and sticky bits
* Read RDR-15 which contains the counters and sticky bits
*/
if (!perf_rdr_read_ubuf(15, userbuf)) {
return -13;
}
/*
/*
* Clear out the counters
*/
perf_rdr_clear(15);
@ -644,7 +644,7 @@ static int perf_stop_counters(uint32_t *raddr)
raddr[2] = (uint32_t)((userbuf[1] >> 32) & 0x00000000ffffffffUL);
raddr[3] = (uint32_t)(userbuf[1] & 0x00000000ffffffffUL);
}
return 0;
}
@ -682,7 +682,7 @@ static int perf_rdr_read_ubuf(uint32_t rdr_num, uint64_t *buffer)
i = tentry->num_words;
while (i--) {
buffer[i] = 0;
}
}
/* Check for bits an even number of 64 */
if ((xbits = width & 0x03f) != 0) {
@ -808,18 +808,22 @@ static int perf_write_image(uint64_t *memaddr)
}
runway = ioremap_nocache(cpu_device->hpa.start, 4096);
if (!runway) {
pr_err("perf_write_image: ioremap failed!\n");
return -ENOMEM;
}
/* Merge intrigue bits into Runway STATUS 0 */
tmp64 = __raw_readq(runway + RUNWAY_STATUS) & 0xffecfffffffffffful;
__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul),
__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul),
runway + RUNWAY_STATUS);
/* Write RUNWAY DEBUG registers */
for (i = 0; i < 8; i++) {
__raw_writeq(*memaddr++, runway + RUNWAY_DEBUG);
}
return 0;
return 0;
}
/*
@ -843,7 +847,7 @@ printk("perf_rdr_write\n");
perf_rdr_shift_out_U(rdr_num, buffer[i]);
} else {
perf_rdr_shift_out_W(rdr_num, buffer[i]);
}
}
}
printk("perf_rdr_write done\n");
}

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

@ -142,6 +142,8 @@ void machine_power_off(void)
printk(KERN_EMERG "System shut down completed.\n"
"Please power this system off now.");
for (;;);
}
void (*pm_power_off)(void) = machine_power_off;

1
arch/parisc/kernel/syscall_table.S
View File

@ -444,6 +444,7 @@
ENTRY_SAME(copy_file_range)
ENTRY_COMP(preadv2)
ENTRY_COMP(pwritev2)
ENTRY_SAME(statx)
.ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))

1
arch/powerpc/boot/zImage.lds.S
View File

@ -68,6 +68,7 @@ SECTIONS
}
#ifdef CONFIG_PPC64_BOOT_WRAPPER
. = ALIGN(256);
.got :
{
__toc_start = .;

2
arch/powerpc/crypto/crc32c-vpmsum_glue.c
View File

@ -52,7 +52,7 @@ static int crc32c_vpmsum_cra_init(struct crypto_tfm *tfm)
{
u32 *key = crypto_tfm_ctx(tfm);
*key = 0;
*key = ~0;
return 0;
}

4
arch/powerpc/include/asm/bitops.h
View File

@ -51,6 +51,10 @@
#define PPC_BIT(bit) (1UL << PPC_BITLSHIFT(bit))
#define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) | PPC_BIT(bs))
/* Put a PPC bit into a "normal" bit position */
#define PPC_BITEXTRACT(bits, ppc_bit, dst_bit) \
((((bits) >> PPC_BITLSHIFT(ppc_bit)) & 1) << (dst_bit))
#include <asm/barrier.h>
/* Macro for generating the ***_bits() functions */

108
arch/powerpc/include/asm/mce.h
View File

@ -66,6 +66,55 @@
#define P8_DSISR_MC_SLB_ERRORS (P7_DSISR_MC_SLB_ERRORS | \
P8_DSISR_MC_ERAT_MULTIHIT_SEC)
/*
* Machine Check bits on power9
*/
#define P9_SRR1_MC_LOADSTORE(srr1) (((srr1) >> PPC_BITLSHIFT(42)) & 1)
#define P9_SRR1_MC_IFETCH(srr1) ( \
PPC_BITEXTRACT(srr1, 45, 0) | \
PPC_BITEXTRACT(srr1, 44, 1) | \
PPC_BITEXTRACT(srr1, 43, 2) | \
PPC_BITEXTRACT(srr1, 36, 3) )
/* 0 is reserved */
#define P9_SRR1_MC_IFETCH_UE 1
#define P9_SRR1_MC_IFETCH_SLB_PARITY 2
#define P9_SRR1_MC_IFETCH_SLB_MULTIHIT 3
#define P9_SRR1_MC_IFETCH_ERAT_MULTIHIT 4
#define P9_SRR1_MC_IFETCH_TLB_MULTIHIT 5
#define P9_SRR1_MC_IFETCH_UE_TLB_RELOAD 6
/* 7 is reserved */
#define P9_SRR1_MC_IFETCH_LINK_TIMEOUT 8
#define P9_SRR1_MC_IFETCH_LINK_TABLEWALK_TIMEOUT 9
/* 10 ? */
#define P9_SRR1_MC_IFETCH_RA 11
#define P9_SRR1_MC_IFETCH_RA_TABLEWALK 12
#define P9_SRR1_MC_IFETCH_RA_ASYNC_STORE 13
#define P9_SRR1_MC_IFETCH_LINK_ASYNC_STORE_TIMEOUT 14
#define P9_SRR1_MC_IFETCH_RA_TABLEWALK_FOREIGN 15
/* DSISR bits for machine check (On Power9) */
#define P9_DSISR_MC_UE (PPC_BIT(48))
#define P9_DSISR_MC_UE_TABLEWALK (PPC_BIT(49))
#define P9_DSISR_MC_LINK_LOAD_TIMEOUT (PPC_BIT(50))
#define P9_DSISR_MC_LINK_TABLEWALK_TIMEOUT (PPC_BIT(51))
#define P9_DSISR_MC_ERAT_MULTIHIT (PPC_BIT(52))
#define P9_DSISR_MC_TLB_MULTIHIT_MFTLB (PPC_BIT(53))
#define P9_DSISR_MC_USER_TLBIE (PPC_BIT(54))
#define P9_DSISR_MC_SLB_PARITY_MFSLB (PPC_BIT(55))
#define P9_DSISR_MC_SLB_MULTIHIT_MFSLB (PPC_BIT(56))
#define P9_DSISR_MC_RA_LOAD (PPC_BIT(57))
#define P9_DSISR_MC_RA_TABLEWALK (PPC_BIT(58))
#define P9_DSISR_MC_RA_TABLEWALK_FOREIGN (PPC_BIT(59))
#define P9_DSISR_MC_RA_FOREIGN (PPC_BIT(60))
/* SLB error bits */
#define P9_DSISR_MC_SLB_ERRORS (P9_DSISR_MC_ERAT_MULTIHIT | \
P9_DSISR_MC_SLB_PARITY_MFSLB | \
P9_DSISR_MC_SLB_MULTIHIT_MFSLB)
enum MCE_Version {
MCE_V1 = 1,
};
@ -93,6 +142,9 @@ enum MCE_ErrorType {
MCE_ERROR_TYPE_SLB = 2,
MCE_ERROR_TYPE_ERAT = 3,
MCE_ERROR_TYPE_TLB = 4,
MCE_ERROR_TYPE_USER = 5,
MCE_ERROR_TYPE_RA = 6,
MCE_ERROR_TYPE_LINK = 7,
};
enum MCE_UeErrorType {
@ -121,6 +173,32 @@ enum MCE_TlbErrorType {
MCE_TLB_ERROR_MULTIHIT = 2,
};
enum MCE_UserErrorType {
MCE_USER_ERROR_INDETERMINATE = 0,
MCE_USER_ERROR_TLBIE = 1,
};
enum MCE_RaErrorType {
MCE_RA_ERROR_INDETERMINATE = 0,
MCE_RA_ERROR_IFETCH = 1,
MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 3,
MCE_RA_ERROR_LOAD = 4,
MCE_RA_ERROR_STORE = 5,
MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 6,
MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 7,
MCE_RA_ERROR_LOAD_STORE_FOREIGN = 8,
};
enum MCE_LinkErrorType {
MCE_LINK_ERROR_INDETERMINATE = 0,
MCE_LINK_ERROR_IFETCH_TIMEOUT = 1,
MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2,
MCE_LINK_ERROR_LOAD_TIMEOUT = 3,
MCE_LINK_ERROR_STORE_TIMEOUT = 4,
MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5,
};
struct machine_check_event {
enum MCE_Version version:8; /* 0x00 */
uint8_t in_use; /* 0x01 */
@ -166,6 +244,30 @@ struct machine_check_event {
uint64_t effective_address;
uint8_t reserved_2[16];
} tlb_error;
struct {
enum MCE_UserErrorType user_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} user_error;
struct {
enum MCE_RaErrorType ra_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} ra_error;
struct {
enum MCE_LinkErrorType link_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} link_error;
} u;
};
@ -176,8 +278,12 @@ struct mce_error_info {
enum MCE_SlbErrorType slb_error_type:8;
enum MCE_EratErrorType erat_error_type:8;
enum MCE_TlbErrorType tlb_error_type:8;
enum MCE_UserErrorType user_error_type:8;
enum MCE_RaErrorType ra_error_type:8;
enum MCE_LinkErrorType link_error_type:8;
} u;
uint8_t reserved[2];
enum MCE_Severity severity:8;
enum MCE_Initiator initiator:8;
};
#define MAX_MC_EVT 100

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

@ -387,3 +387,4 @@ SYSCALL(copy_file_range)
COMPAT_SYS_SPU(preadv2)
COMPAT_SYS_SPU(pwritev2)
SYSCALL(kexec_file_load)
SYSCALL(statx)

2
arch/powerpc/include/asm/unistd.h
View File

@ -12,7 +12,7 @@
#include <uapi/asm/unistd.h>
#define NR_syscalls 383
#define NR_syscalls 384
#define __NR__exit __NR_exit

1
arch/powerpc/include/uapi/asm/unistd.h
View File

@ -393,5 +393,6 @@
#define __NR_preadv2 380
#define __NR_pwritev2 381
#define __NR_kexec_file_load 382
#define __NR_statx 383
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */

3
arch/powerpc/kernel/cputable.c
View File

@ -77,6 +77,7 @@ extern void __flush_tlb_power8(unsigned int action);
extern void __flush_tlb_power9(unsigned int action);
extern long __machine_check_early_realmode_p7(struct pt_regs *regs);
extern long __machine_check_early_realmode_p8(struct pt_regs *regs);
extern long __machine_check_early_realmode_p9(struct pt_regs *regs);
#endif /* CONFIG_PPC64 */
#if defined(CONFIG_E500)
extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
@ -540,6 +541,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.cpu_setup = __setup_cpu_power9,
.cpu_restore = __restore_cpu_power9,
.flush_tlb = __flush_tlb_power9,
.machine_check_early = __machine_check_early_realmode_p9,
.platform = "power9",
},
{ /* Power9 */
@ -559,6 +561,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.cpu_setup = __setup_cpu_power9,
.cpu_restore = __restore_cpu_power9,
.flush_tlb = __flush_tlb_power9,
.machine_check_early = __machine_check_early_realmode_p9,
.platform = "power9",
},
{ /* Cell Broadband Engine */

20
arch/powerpc/kernel/idle_book3s.S
View File

@ -449,9 +449,23 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
_GLOBAL(pnv_wakeup_tb_loss)
ld r1,PACAR1(r13)
/*
* Before entering any idle state, the NVGPRs are saved in the stack
* and they are restored before switching to the process context. Hence
* until they are restored, they are free to be used.
* Before entering any idle state, the NVGPRs are saved in the stack.
* If there was a state loss, or PACA_NAPSTATELOST was set, then the
* NVGPRs are restored. If we are here, it is likely that state is lost,
* but not guaranteed -- neither ISA207 nor ISA300 tests to reach
* here are the same as the test to restore NVGPRS:
* PACA_THREAD_IDLE_STATE test for ISA207, PSSCR test for ISA300,
* and SRR1 test for restoring NVGPRs.
*
* We are about to clobber NVGPRs now, so set NAPSTATELOST to
* guarantee they will always be restored. This might be tightened
* with careful reading of specs (particularly for ISA300) but this
* is already a slow wakeup path and it's simpler to be safe.
*/
li r0,1
stb r0,PACA_NAPSTATELOST(r13)
/*
*
* Save SRR1 and LR in NVGPRs as they might be clobbered in
* opal_call() (called in CHECK_HMI_INTERRUPT). SRR1 is required

88
arch/powerpc/kernel/mce.c
View File

@ -58,6 +58,15 @@ static void mce_set_error_info(struct machine_check_event *mce,
case MCE_ERROR_TYPE_TLB:
mce->u.tlb_error.tlb_error_type = mce_err->u.tlb_error_type;
break;
case MCE_ERROR_TYPE_USER:
mce->u.user_error.user_error_type = mce_err->u.user_error_type;
break;
case MCE_ERROR_TYPE_RA:
mce->u.ra_error.ra_error_type = mce_err->u.ra_error_type;
break;
case MCE_ERROR_TYPE_LINK:
mce->u.link_error.link_error_type = mce_err->u.link_error_type;
break;
case MCE_ERROR_TYPE_UNKNOWN:
default:
break;
@ -90,13 +99,14 @@ void save_mce_event(struct pt_regs *regs, long handled,
mce->gpr3 = regs->gpr[3];
mce->in_use = 1;
mce->initiator = MCE_INITIATOR_CPU;
/* Mark it recovered if we have handled it and MSR(RI=1). */
if (handled && (regs->msr & MSR_RI))
mce->disposition = MCE_DISPOSITION_RECOVERED;
else
mce->disposition = MCE_DISPOSITION_NOT_RECOVERED;
mce->severity = MCE_SEV_ERROR_SYNC;
mce->initiator = mce_err->initiator;
mce->severity = mce_err->severity;
/*
* Populate the mce error_type and type-specific error_type.
@ -115,6 +125,15 @@ void save_mce_event(struct pt_regs *regs, long handled,
} else if (mce->error_type == MCE_ERROR_TYPE_ERAT) {
mce->u.erat_error.effective_address_provided = true;
mce->u.erat_error.effective_address = addr;
} else if (mce->error_type == MCE_ERROR_TYPE_USER) {
mce->u.user_error.effective_address_provided = true;
mce->u.user_error.effective_address = addr;
} else if (mce->error_type == MCE_ERROR_TYPE_RA) {
mce->u.ra_error.effective_address_provided = true;
mce->u.ra_error.effective_address = addr;
} else if (mce->error_type == MCE_ERROR_TYPE_LINK) {
mce->u.link_error.effective_address_provided = true;
mce->u.link_error.effective_address = addr;
} else if (mce->error_type == MCE_ERROR_TYPE_UE) {
mce->u.ue_error.effective_address_provided = true;
mce->u.ue_error.effective_address = addr;
@ -239,6 +258,29 @@ void machine_check_print_event_info(struct machine_check_event *evt)
"Parity",
"Multihit",
};
static const char *mc_user_types[] = {
"Indeterminate",
"tlbie(l) invalid",
};
static const char *mc_ra_types[] = {
"Indeterminate",
"Instruction fetch (bad)",
"Page table walk ifetch (bad)",
"Page table walk ifetch (foreign)",
"Load (bad)",
"Store (bad)",
"Page table walk Load/Store (bad)",
"Page table walk Load/Store (foreign)",
"Load/Store (foreign)",
};
static const char *mc_link_types[] = {
"Indeterminate",
"Instruction fetch (timeout)",
"Page table walk ifetch (timeout)",
"Load (timeout)",
"Store (timeout)",
"Page table walk Load/Store (timeout)",
};
/* Print things out */
if (evt->version != MCE_V1) {
@ -315,6 +357,36 @@ void machine_check_print_event_info(struct machine_check_event *evt)
printk("%s Effective address: %016llx\n",
level, evt->u.tlb_error.effective_address);
break;
case MCE_ERROR_TYPE_USER:
subtype = evt->u.user_error.user_error_type <
ARRAY_SIZE(mc_user_types) ?
mc_user_types[evt->u.user_error.user_error_type]
: "Unknown";
printk("%s Error type: User [%s]\n", level, subtype);
if (evt->u.user_error.effective_address_provided)
printk("%s Effective address: %016llx\n",
level, evt->u.user_error.effective_address);
break;
case MCE_ERROR_TYPE_RA:
subtype = evt->u.ra_error.ra_error_type <
ARRAY_SIZE(mc_ra_types) ?
mc_ra_types[evt->u.ra_error.ra_error_type]
: "Unknown";
printk("%s Error type: Real address [%s]\n", level, subtype);
if (evt->u.ra_error.effective_address_provided)
printk("%s Effective address: %016llx\n",
level, evt->u.ra_error.effective_address);
break;
case MCE_ERROR_TYPE_LINK:
subtype = evt->u.link_error.link_error_type <
ARRAY_SIZE(mc_link_types) ?
mc_link_types[evt->u.link_error.link_error_type]
: "Unknown";
printk("%s Error type: Link [%s]\n", level, subtype);
if (evt->u.link_error.effective_address_provided)
printk("%s Effective address: %016llx\n",
level, evt->u.link_error.effective_address);
break;
default:
case MCE_ERROR_TYPE_UNKNOWN:
printk("%s Error type: Unknown\n", level);
@ -341,6 +413,18 @@ uint64_t get_mce_fault_addr(struct machine_check_event *evt)
if (evt->u.tlb_error.effective_address_provided)
return evt->u.tlb_error.effective_address;
break;
case MCE_ERROR_TYPE_USER:
if (evt->u.user_error.effective_address_provided)
return evt->u.user_error.effective_address;
break;
case MCE_ERROR_TYPE_RA:
if (evt->u.ra_error.effective_address_provided)
return evt->u.ra_error.effective_address;
break;
case MCE_ERROR_TYPE_LINK:
if (evt->u.link_error.effective_address_provided)
return evt->u.link_error.effective_address;
break;
default:
case MCE_ERROR_TYPE_UNKNOWN:
break;

237
arch/powerpc/kernel/mce_power.c
View File

@ -116,6 +116,51 @@ static void flush_and_reload_slb(void)
}
#endif
static void flush_erat(void)
{
asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
}
#define MCE_FLUSH_SLB 1
#define MCE_FLUSH_TLB 2
#define MCE_FLUSH_ERAT 3
static int mce_flush(int what)
{
#ifdef CONFIG_PPC_STD_MMU_64
if (what == MCE_FLUSH_SLB) {
flush_and_reload_slb();
return 1;
}
#endif
if (what == MCE_FLUSH_ERAT) {
flush_erat();
return 1;
}
if (what == MCE_FLUSH_TLB) {
if (cur_cpu_spec && cur_cpu_spec->flush_tlb) {
cur_cpu_spec->flush_tlb(TLB_INVAL_SCOPE_GLOBAL);
return 1;
}
}
return 0;
}
static int mce_handle_flush_derrors(uint64_t dsisr, uint64_t slb, uint64_t tlb, uint64_t erat)
{
if ((dsisr & slb) && mce_flush(MCE_FLUSH_SLB))
dsisr &= ~slb;
if ((dsisr & erat) && mce_flush(MCE_FLUSH_ERAT))
dsisr &= ~erat;
if ((dsisr & tlb) && mce_flush(MCE_FLUSH_TLB))
dsisr &= ~tlb;
/* Any other errors we don't understand? */
if (dsisr)
return 0;
return 1;
}
static long mce_handle_derror(uint64_t dsisr, uint64_t slb_error_bits)
{
long handled = 1;
@ -281,6 +326,9 @@ long __machine_check_early_realmode_p7(struct pt_regs *regs)
long handled = 1;
struct mce_error_info mce_error_info = { 0 };
mce_error_info.severity = MCE_SEV_ERROR_SYNC;
mce_error_info.initiator = MCE_INITIATOR_CPU;
srr1 = regs->msr;
nip = regs->nip;
@ -352,6 +400,9 @@ long __machine_check_early_realmode_p8(struct pt_regs *regs)
long handled = 1;
struct mce_error_info mce_error_info = { 0 };
mce_error_info.severity = MCE_SEV_ERROR_SYNC;
mce_error_info.initiator = MCE_INITIATOR_CPU;
srr1 = regs->msr;
nip = regs->nip;
@ -372,3 +423,189 @@ long __machine_check_early_realmode_p8(struct pt_regs *regs)
save_mce_event(regs, handled, &mce_error_info, nip, addr);
return handled;
}
static int mce_handle_derror_p9(struct pt_regs *regs)
{
uint64_t dsisr = regs->dsisr;
return mce_handle_flush_derrors(dsisr,
P9_DSISR_MC_SLB_PARITY_MFSLB |
P9_DSISR_MC_SLB_MULTIHIT_MFSLB,
P9_DSISR_MC_TLB_MULTIHIT_MFTLB,
P9_DSISR_MC_ERAT_MULTIHIT);
}
static int mce_handle_ierror_p9(struct pt_regs *regs)
{
uint64_t srr1 = regs->msr;
switch (P9_SRR1_MC_IFETCH(srr1)) {
case P9_SRR1_MC_IFETCH_SLB_PARITY:
case P9_SRR1_MC_IFETCH_SLB_MULTIHIT:
return mce_flush(MCE_FLUSH_SLB);
case P9_SRR1_MC_IFETCH_TLB_MULTIHIT:
return mce_flush(MCE_FLUSH_TLB);
case P9_SRR1_MC_IFETCH_ERAT_MULTIHIT:
return mce_flush(MCE_FLUSH_ERAT);
default:
return 0;
}
}
static void mce_get_derror_p9(struct pt_regs *regs,
struct mce_error_info *mce_err, uint64_t *addr)
{
uint64_t dsisr = regs->dsisr;
mce_err->severity = MCE_SEV_ERROR_SYNC;
mce_err->initiator = MCE_INITIATOR_CPU;
if (dsisr & P9_DSISR_MC_USER_TLBIE)
*addr = regs->nip;
else
*addr = regs->dar;
if (dsisr & P9_DSISR_MC_UE) {
mce_err->error_type = MCE_ERROR_TYPE_UE;
mce_err->u.ue_error_type = MCE_UE_ERROR_LOAD_STORE;
} else if (dsisr & P9_DSISR_MC_UE_TABLEWALK) {
mce_err->error_type = MCE_ERROR_TYPE_UE;
mce_err->u.ue_error_type = MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE;
} else if (dsisr & P9_DSISR_MC_LINK_LOAD_TIMEOUT) {
mce_err->error_type = MCE_ERROR_TYPE_LINK;
mce_err->u.link_error_type = MCE_LINK_ERROR_LOAD_TIMEOUT;
} else if (dsisr & P9_DSISR_MC_LINK_TABLEWALK_TIMEOUT) {
mce_err->error_type = MCE_ERROR_TYPE_LINK;
mce_err->u.link_error_type = MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT;
} else if (dsisr & P9_DSISR_MC_ERAT_MULTIHIT) {
mce_err->error_type = MCE_ERROR_TYPE_ERAT;
mce_err->u.erat_error_type = MCE_ERAT_ERROR_MULTIHIT;
} else if (dsisr & P9_DSISR_MC_TLB_MULTIHIT_MFTLB) {
mce_err->error_type = MCE_ERROR_TYPE_TLB;
mce_err->u.tlb_error_type = MCE_TLB_ERROR_MULTIHIT;
} else if (dsisr & P9_DSISR_MC_USER_TLBIE) {
mce_err->error_type = MCE_ERROR_TYPE_USER;
mce_err->u.user_error_type = MCE_USER_ERROR_TLBIE;
} else if (dsisr & P9_DSISR_MC_SLB_PARITY_MFSLB) {
mce_err->error_type = MCE_ERROR_TYPE_SLB;
mce_err->u.slb_error_type = MCE_SLB_ERROR_PARITY;
} else if (dsisr & P9_DSISR_MC_SLB_MULTIHIT_MFSLB) {
mce_err->error_type = MCE_ERROR_TYPE_SLB;
mce_err->u.slb_error_type = MCE_SLB_ERROR_MULTIHIT;
} else if (dsisr & P9_DSISR_MC_RA_LOAD) {
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_LOAD;
} else if (dsisr & P9_DSISR_MC_RA_TABLEWALK) {
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE;
} else if (dsisr & P9_DSISR_MC_RA_TABLEWALK_FOREIGN) {
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN;
} else if (dsisr & P9_DSISR_MC_RA_FOREIGN) {
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_LOAD_STORE_FOREIGN;
}
}
static void mce_get_ierror_p9(struct pt_regs *regs,
struct mce_error_info *mce_err, uint64_t *addr)
{
uint64_t srr1 = regs->msr;
switch (P9_SRR1_MC_IFETCH(srr1)) {
case P9_SRR1_MC_IFETCH_RA_ASYNC_STORE:
case P9_SRR1_MC_IFETCH_LINK_ASYNC_STORE_TIMEOUT:
mce_err->severity = MCE_SEV_FATAL;
break;
default:
mce_err->severity = MCE_SEV_ERROR_SYNC;
break;
}
mce_err->initiator = MCE_INITIATOR_CPU;
*addr = regs->nip;
switch (P9_SRR1_MC_IFETCH(srr1)) {
case P9_SRR1_MC_IFETCH_UE:
mce_err->error_type = MCE_ERROR_TYPE_UE;
mce_err->u.ue_error_type = MCE_UE_ERROR_IFETCH;
break;
case P9_SRR1_MC_IFETCH_SLB_PARITY:
mce_err->error_type = MCE_ERROR_TYPE_SLB;
mce_err->u.slb_error_type = MCE_SLB_ERROR_PARITY;
break;
case P9_SRR1_MC_IFETCH_SLB_MULTIHIT:
mce_err->error_type = MCE_ERROR_TYPE_SLB;
mce_err->u.slb_error_type = MCE_SLB_ERROR_MULTIHIT;
break;
case P9_SRR1_MC_IFETCH_ERAT_MULTIHIT:
mce_err->error_type = MCE_ERROR_TYPE_ERAT;
mce_err->u.erat_error_type = MCE_ERAT_ERROR_MULTIHIT;
break;
case P9_SRR1_MC_IFETCH_TLB_MULTIHIT:
mce_err->error_type = MCE_ERROR_TYPE_TLB;
mce_err->u.tlb_error_type = MCE_TLB_ERROR_MULTIHIT;
break;
case P9_SRR1_MC_IFETCH_UE_TLB_RELOAD:
mce_err->error_type = MCE_ERROR_TYPE_UE;
mce_err->u.ue_error_type = MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH;
break;
case P9_SRR1_MC_IFETCH_LINK_TIMEOUT:
mce_err->error_type = MCE_ERROR_TYPE_LINK;
mce_err->u.link_error_type = MCE_LINK_ERROR_IFETCH_TIMEOUT;
break;
case P9_SRR1_MC_IFETCH_LINK_TABLEWALK_TIMEOUT:
mce_err->error_type = MCE_ERROR_TYPE_LINK;
mce_err->u.link_error_type = MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT;
break;
case P9_SRR1_MC_IFETCH_RA:
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_IFETCH;
break;
case P9_SRR1_MC_IFETCH_RA_TABLEWALK:
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH;
break;
case P9_SRR1_MC_IFETCH_RA_ASYNC_STORE:
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_STORE;
break;
case P9_SRR1_MC_IFETCH_LINK_ASYNC_STORE_TIMEOUT:
mce_err->error_type = MCE_ERROR_TYPE_LINK;
mce_err->u.link_error_type = MCE_LINK_ERROR_STORE_TIMEOUT;
break;
case P9_SRR1_MC_IFETCH_RA_TABLEWALK_FOREIGN:
mce_err->error_type = MCE_ERROR_TYPE_RA;
mce_err->u.ra_error_type = MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN;
break;
default:
break;
}
}
long __machine_check_early_realmode_p9(struct pt_regs *regs)
{
uint64_t nip, addr;
long handled;
struct mce_error_info mce_error_info = { 0 };
nip = regs->nip;
if (P9_SRR1_MC_LOADSTORE(regs->msr)) {
handled = mce_handle_derror_p9(regs);
mce_get_derror_p9(regs, &mce_error_info, &addr);
} else {
handled = mce_handle_ierror_p9(regs);
mce_get_ierror_p9(regs, &mce_error_info, &addr);
}
/* Handle UE error. */
if (mce_error_info.error_type == MCE_ERROR_TYPE_UE)
handled = mce_handle_ue_error(regs);
save_mce_event(regs, handled, &mce_error_info, nip, addr);
return handled;
}

3
arch/powerpc/mm/init_64.c
View File

@ -397,8 +397,7 @@ static void early_check_vec5(void)
void __init mmu_early_init_devtree(void)
{
/* Disable radix mode based on kernel command line. */
/* We don't yet have the machinery to do radix as a guest. */
if (disable_radix || !(mfmsr() & MSR_HV))
if (disable_radix)
cur_cpu_spec->mmu_features &= ~MMU_FTR_TYPE_RADIX;
/*

2
arch/powerpc/perf/core-book3s.c
View File

@ -188,6 +188,8 @@ static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp)
sdsync = POWER7P_MMCRA_SDAR_VALID;
else if (ppmu->flags & PPMU_ALT_SIPR)
sdsync = POWER6_MMCRA_SDSYNC;
else if (ppmu->flags & PPMU_NO_SIAR)
sdsync = MMCRA_SAMPLE_ENABLE;
else
sdsync = MMCRA_SDSYNC;

43
arch/powerpc/perf/isa207-common.c
View File

@ -65,12 +65,41 @@ static bool is_event_valid(u64 event)
return !(event & ~valid_mask);
}
static u64 mmcra_sdar_mode(u64 event)
static inline bool is_event_marked(u64 event)
{
if (cpu_has_feature(CPU_FTR_ARCH_300) && !cpu_has_feature(CPU_FTR_POWER9_DD1))
return p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
if (event & EVENT_IS_MARKED)
return true;
return MMCRA_SDAR_MODE_TLB;
return false;
}
static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
{
/*
* MMCRA[SDAR_MODE] specifices how the SDAR should be updated in
* continous sampling mode.
*
* Incase of Power8:
* MMCRA[SDAR_MODE] will be programmed as "0b01" for continous sampling
* mode and will be un-changed when setting MMCRA[63] (Marked events).
*
* Incase of Power9:
* Marked event: MMCRA[SDAR_MODE] will be set to 0b00 ('No Updates'),
* or if group already have any marked events.
* Non-Marked events (for DD1):
* MMCRA[SDAR_MODE] will be set to 0b01
* For rest
* MMCRA[SDAR_MODE] will be set from event code.
*/
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE))
*mmcra &= MMCRA_SDAR_MODE_NO_UPDATES;
else if (!cpu_has_feature(CPU_FTR_POWER9_DD1))
*mmcra |= p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
else if (cpu_has_feature(CPU_FTR_POWER9_DD1))
*mmcra |= MMCRA_SDAR_MODE_TLB;
} else
*mmcra |= MMCRA_SDAR_MODE_TLB;
}
static u64 thresh_cmp_val(u64 value)
@ -180,7 +209,7 @@ int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp)
value |= CNST_L1_QUAL_VAL(cache);
}
if (event & EVENT_IS_MARKED) {
if (is_event_marked(event)) {
mask |= CNST_SAMPLE_MASK;
value |= CNST_SAMPLE_VAL(event >> EVENT_SAMPLE_SHIFT);
}
@ -276,7 +305,7 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
}
/* In continuous sampling mode, update SDAR on TLB miss */
mmcra |= mmcra_sdar_mode(event[i]);
mmcra_sdar_mode(event[i], &mmcra);
if (event[i] & EVENT_IS_L1) {
cache = event[i] >> EVENT_CACHE_SEL_SHIFT;
@ -285,7 +314,7 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
mmcr1 |= (cache & 1) << MMCR1_DC_QUAL_SHIFT;
}
if (event[i] & EVENT_IS_MARKED) {
if (is_event_marked(event[i])) {
mmcra |= MMCRA_SAMPLE_ENABLE;
val = (event[i] >> EVENT_SAMPLE_SHIFT) & EVENT_SAMPLE_MASK;

1
arch/powerpc/perf/isa207-common.h
View File

@ -246,6 +246,7 @@
#define MMCRA_THR_CMP_SHIFT 32
#define MMCRA_SDAR_MODE_SHIFT 42
#define MMCRA_SDAR_MODE_TLB (1ull << MMCRA_SDAR_MODE_SHIFT)
#define MMCRA_SDAR_MODE_NO_UPDATES ~(0x3ull << MMCRA_SDAR_MODE_SHIFT)
#define MMCRA_IFM_SHIFT 30
/* MMCR1 Threshold Compare bit constant for power9 */

21
arch/powerpc/platforms/powernv/opal.c
View File

@ -395,7 +395,6 @@ static int opal_recover_mce(struct pt_regs *regs,
struct machine_check_event *evt)
{
int recovered = 0;
uint64_t ea = get_mce_fault_addr(evt);
if (!(regs->msr & MSR_RI)) {
/* If MSR_RI isn't set, we cannot recover */
@ -404,26 +403,18 @@ static int opal_recover_mce(struct pt_regs *regs,
} else if (evt->disposition == MCE_DISPOSITION_RECOVERED) {
/* Platform corrected itself */
recovered = 1;
} else if (ea && !is_kernel_addr(ea)) {
} else if (evt->severity == MCE_SEV_FATAL) {
/* Fatal machine check */
pr_err("Machine check interrupt is fatal\n");
recovered = 0;
} else if ((evt->severity == MCE_SEV_ERROR_SYNC) &&
(user_mode(regs) && !is_global_init(current))) {
/*
* Faulting address is not in kernel text. We should be fine.
* We need to find which process uses this address.
* For now, kill the task if we have received exception when
* in userspace.
*
* TODO: Queue up this address for hwpoisioning later.
*/
if (user_mode(regs) && !is_global_init(current)) {
_exception(SIGBUS, regs, BUS_MCEERR_AR, regs->nip);
recovered = 1;
} else
recovered = 0;
} else if (user_mode(regs) && !is_global_init(current) &&
evt->severity == MCE_SEV_ERROR_SYNC) {
/*
* If we have received a synchronous error when in userspace
* kill the task.
*/
_exception(SIGBUS, regs, BUS_MCEERR_AR, regs->nip);
recovered = 1;
}

20
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -1775,17 +1775,20 @@ static u64 pnv_pci_ioda_dma_get_required_mask(struct pci_dev *pdev)
}
static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe,
struct pci_bus *bus)
struct pci_bus *bus,
bool add_to_group)
{
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
set_dma_offset(&dev->dev, pe->tce_bypass_base);
iommu_add_device(&dev->dev);
if (add_to_group)
iommu_add_device(&dev->dev);
if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate)
pnv_ioda_setup_bus_dma(pe, dev->subordinate);
pnv_ioda_setup_bus_dma(pe, dev->subordinate,
add_to_group);
}
}
@ -2191,7 +2194,7 @@ found:
set_iommu_table_base(&pe->pdev->dev, tbl);
iommu_add_device(&pe->pdev->dev);
} else if (pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL))
pnv_ioda_setup_bus_dma(pe, pe->pbus);
pnv_ioda_setup_bus_dma(pe, pe->pbus, true);
return;
fail:
@ -2426,6 +2429,8 @@ static void pnv_ioda2_take_ownership(struct iommu_table_group *table_group)
pnv_pci_ioda2_set_bypass(pe, false);
pnv_pci_ioda2_unset_window(&pe->table_group, 0);
if (pe->pbus)
pnv_ioda_setup_bus_dma(pe, pe->pbus, false);
pnv_ioda2_table_free(tbl);
}
@ -2435,6 +2440,8 @@ static void pnv_ioda2_release_ownership(struct iommu_table_group *table_group)
table_group);
pnv_pci_ioda2_setup_default_config(pe);
if (pe->pbus)
pnv_ioda_setup_bus_dma(pe, pe->pbus, false);
}
static struct iommu_table_group_ops pnv_pci_ioda2_ops = {
@ -2624,6 +2631,9 @@ static long pnv_pci_ioda2_table_alloc_pages(int nid, __u64 bus_offset,
level_shift = entries_shift + 3;
level_shift = max_t(unsigned, level_shift, PAGE_SHIFT);
if ((level_shift - 3) * levels + page_shift >= 60)
return -EINVAL;
/* Allocate TCE table */
addr = pnv_pci_ioda2_table_do_alloc_pages(nid, level_shift,
levels, tce_table_size, &offset, &total_allocated);
@ -2728,7 +2738,7 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,
if (pe->flags & PNV_IODA_PE_DEV)
iommu_add_device(&pe->pdev->dev);
else if (pe->flags & (PNV_IODA_PE_BUS | PNV_IODA_PE_BUS_ALL))
pnv_ioda_setup_bus_dma(pe, pe->pbus);
pnv_ioda_setup_bus_dma(pe, pe->pbus, true);
}
#ifdef CONFIG_PCI_MSI

4
arch/powerpc/platforms/pseries/lpar.c
View File

@ -751,7 +751,9 @@ void __init hpte_init_pseries(void)
mmu_hash_ops.flush_hash_range = pSeries_lpar_flush_hash_range;
mmu_hash_ops.hpte_clear_all = pseries_hpte_clear_all;
mmu_hash_ops.hugepage_invalidate = pSeries_lpar_hugepage_invalidate;
mmu_hash_ops.resize_hpt = pseries_lpar_resize_hpt;
if (firmware_has_feature(FW_FEATURE_HPT_RESIZE))
mmu_hash_ops.resize_hpt = pseries_lpar_resize_hpt;
}
void radix_init_pseries(void)

12
arch/powerpc/purgatory/trampoline.S
View File

@ -116,13 +116,13 @@ dt_offset:
.data
.balign 8
.globl sha256_digest
sha256_digest:
.globl purgatory_sha256_digest
purgatory_sha256_digest:
.skip 32
.size sha256_digest, . - sha256_digest
.size purgatory_sha256_digest, . - purgatory_sha256_digest
.balign 8
.globl sha_regions
sha_regions:
.globl purgatory_sha_regions
purgatory_sha_regions:
.skip 8 * 2 * 16
.size sha_regions, . - sha_regions
.size purgatory_sha_regions, . - purgatory_sha_regions

5
arch/s390/crypto/paes_s390.c
View File

@ -474,8 +474,11 @@ static int ctr_paes_crypt(struct blkcipher_desc *desc, unsigned long modifier,
ret = blkcipher_walk_done(desc, walk, nbytes - n);
}
if (k < n) {
if (__ctr_paes_set_key(ctx) != 0)
if (__ctr_paes_set_key(ctx) != 0) {
if (locked)
spin_unlock(&ctrblk_lock);
return blkcipher_walk_done(desc, walk, -EIO);
}
}
}
if (locked)

20
arch/s390/include/asm/cputime.h
View File

@ -8,31 +8,27 @@
#define _S390_CPUTIME_H
#include <linux/types.h>
#include <asm/div64.h>
#include <asm/timex.h>
#define CPUTIME_PER_USEC 4096ULL
#define CPUTIME_PER_SEC (CPUTIME_PER_USEC * USEC_PER_SEC)
/* We want to use full resolution of the CPU timer: 2**-12 micro-seconds. */
typedef unsigned long long __nocast cputime_t;
typedef unsigned long long __nocast cputime64_t;
#define cmpxchg_cputime(ptr, old, new) cmpxchg64(ptr, old, new)
static inline unsigned long __div(unsigned long long n, unsigned long base)
/*
* Convert cputime to microseconds.
*/
static inline u64 cputime_to_usecs(const u64 cputime)
{
return n / base;
return cputime >> 12;
}
/*
* Convert cputime to microseconds and back.
* Convert cputime to nanoseconds.
*/
static inline unsigned int cputime_to_usecs(const cputime_t cputime)
{
return (__force unsigned long long) cputime >> 12;
}
#define cputime_to_nsecs(cputime) tod_to_ns(cputime)
u64 arch_cpu_idle_time(int cpu);

12
arch/s390/include/asm/timex.h
View File

@ -206,20 +206,16 @@ static inline unsigned long long get_tod_clock_monotonic(void)
* ns = (todval * 125) >> 9;
*
* In order to avoid an overflow with the multiplication we can rewrite this.
* With a split todval == 2^32 * th + tl (th upper 32 bits, tl lower 32 bits)
* With a split todval == 2^9 * th + tl (th upper 55 bits, tl lower 9 bits)
* we end up with
*
* ns = ((2^32 * th + tl) * 125 ) >> 9;
* -> ns = (2^23 * th * 125) + ((tl * 125) >> 9);
* ns = ((2^9 * th + tl) * 125 ) >> 9;
* -> ns = (th * 125) + ((tl * 125) >> 9);
*
*/
static inline unsigned long long tod_to_ns(unsigned long long todval)
{
unsigned long long ns;
ns = ((todval >> 32) << 23) * 125;
ns += ((todval & 0xffffffff) * 125) >> 9;
return ns;
return ((todval >> 9) * 125) + (((todval & 0x1ff) * 125) >> 9);
}
#endif

4
arch/s390/include/uapi/asm/unistd.h
View File

@ -313,7 +313,9 @@
#define __NR_copy_file_range 375
#define __NR_preadv2 376
#define __NR_pwritev2 377
#define NR_syscalls 378
/* Number 378 is reserved for guarded storage */
#define __NR_statx 379
#define NR_syscalls 380
/*
* There are some system calls that are not present on 64 bit, some

1
arch/s390/kernel/compat_wrapper.c
View File

@ -178,3 +178,4 @@ COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr,
COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);
COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
COMPAT_SYSCALL_WRAP6(copy_file_range, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
COMPAT_SYSCALL_WRAP5(statx, int, dfd, const char __user *, path, unsigned, flags, unsigned, mask, struct statx __user *, buffer);

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

@ -490,7 +490,7 @@ ENTRY(pgm_check_handler)
jnz .Lpgm_svcper # -> single stepped svc
1: CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC
aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
j 3f
j 4f
2: UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER
lg %r15,__LC_KERNEL_STACK
lgr %r14,%r12
@ -499,8 +499,8 @@ ENTRY(pgm_check_handler)
tm __LC_PGM_ILC+2,0x02 # check for transaction abort
jz 3f
mvc __THREAD_trap_tdb(256,%r14),0(%r13)
3: la %r11,STACK_FRAME_OVERHEAD(%r15)
stg %r10,__THREAD_last_break(%r14)
3: stg %r10,__THREAD_last_break(%r14)
4: la %r11,STACK_FRAME_OVERHEAD(%r15)
stmg %r0,%r7,__PT_R0(%r11)
mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
stmg %r8,%r9,__PT_PSW(%r11)
@ -509,14 +509,14 @@ ENTRY(pgm_check_handler)
xc __PT_FLAGS(8,%r11),__PT_FLAGS(%r11)
stg %r10,__PT_ARGS(%r11)
tm __LC_PGM_ILC+3,0x80 # check for per exception
jz 4f
jz 5f
tmhh %r8,0x0001 # kernel per event ?
jz .Lpgm_kprobe
oi __PT_FLAGS+7(%r11),_PIF_PER_TRAP
mvc __THREAD_per_address(8,%r14),__LC_PER_ADDRESS
mvc __THREAD_per_cause(2,%r14),__LC_PER_CODE
mvc __THREAD_per_paid(1,%r14),__LC_PER_ACCESS_ID
4: REENABLE_IRQS
5: REENABLE_IRQS
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
larl %r1,pgm_check_table
llgh %r10,__PT_INT_CODE+2(%r11)

2
arch/s390/kernel/ipl.c
View File

@ -564,6 +564,8 @@ static struct kset *ipl_kset;
static void __ipl_run(void *unused)
{
if (MACHINE_IS_LPAR && ipl_info.type == IPL_TYPE_CCW)
diag308(DIAG308_LOAD_NORMAL_DUMP, NULL);
diag308(DIAG308_LOAD_CLEAR, NULL);
if (MACHINE_IS_VM)
__cpcmd("IPL", NULL, 0, NULL);

3
arch/s390/kernel/process.c
View File

@ -124,7 +124,10 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp,
clear_tsk_thread_flag(p, TIF_SINGLE_STEP);
/* Initialize per thread user and system timer values */
p->thread.user_timer = 0;
p->thread.guest_timer = 0;
p->thread.system_timer = 0;
p->thread.hardirq_timer = 0;
p->thread.softirq_timer = 0;
frame->sf.back_chain = 0;
/* new return point is ret_from_fork */

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