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authorDavid S. Miller <davem@davemloft.net>2014-11-29 20:47:48 -0800
committerDavid S. Miller <davem@davemloft.net>2014-11-29 20:47:48 -0800
commit60b7379dc5b1743427b031cca53e30860a38ada6 (patch)
treec0462b8dd188861bd04f36dd31672b7446e35dd8 /arch
parenta523a5ecc8c6ddceb8f783f600605553e5ad8963 (diff)
parent7a5a4f978750756755dc839014e13d1b088ccc8e (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/exynos5250-snow.dts4
-rw-r--r--arch/arm/boot/dts/exynos5250.dtsi2
-rw-r--r--arch/arm/boot/dts/r8a7740.dtsi2
-rw-r--r--arch/arm/boot/dts/r8a7790.dtsi4
-rw-r--r--arch/arm/boot/dts/sun6i-a31.dtsi4
-rw-r--r--arch/arm/boot/dts/tegra114-dalmore.dts1
-rw-r--r--arch/arm/boot/dts/tegra114-roth.dts9
-rw-r--r--arch/arm/boot/dts/tegra114-tn7.dts5
-rw-r--r--arch/arm/boot/dts/tegra114.dtsi7
-rw-r--r--arch/arm/boot/dts/tegra124-jetson-tk1.dts1
-rw-r--r--arch/arm/boot/dts/tegra124-nyan-big.dts1
-rw-r--r--arch/arm/boot/dts/tegra124-venice2.dts1
-rw-r--r--arch/arm/boot/dts/tegra124.dtsi8
-rw-r--r--arch/arm/boot/dts/tegra20-harmony.dts1
-rw-r--r--arch/arm/boot/dts/tegra20-iris-512.dts5
-rw-r--r--arch/arm/boot/dts/tegra20-medcom-wide.dts4
-rw-r--r--arch/arm/boot/dts/tegra20-paz00.dts2
-rw-r--r--arch/arm/boot/dts/tegra20-seaboard.dts1
-rw-r--r--arch/arm/boot/dts/tegra20-tamonten.dtsi1
-rw-r--r--arch/arm/boot/dts/tegra20-trimslice.dts1
-rw-r--r--arch/arm/boot/dts/tegra20-ventana.dts1
-rw-r--r--arch/arm/boot/dts/tegra20-whistler.dts1
-rw-r--r--arch/arm/boot/dts/tegra20.dtsi8
-rw-r--r--arch/arm/boot/dts/tegra30-apalis-eval.dts4
-rw-r--r--arch/arm/boot/dts/tegra30-beaver.dts1
-rw-r--r--arch/arm/boot/dts/tegra30-cardhu.dtsi2
-rw-r--r--arch/arm/boot/dts/tegra30-colibri-eval-v3.dts3
-rw-r--r--arch/arm/boot/dts/tegra30.dtsi8
-rw-r--r--arch/arm/configs/exynos_defconfig2
-rw-r--r--arch/arm/configs/multi_v7_defconfig1
-rw-r--r--arch/arm/include/asm/thread_info.h11
-rw-r--r--arch/arm/kernel/traps.c31
-rw-r--r--arch/arm/kvm/mmu.c10
-rw-r--r--arch/arm/mach-mvebu/coherency.c2
-rw-r--r--arch/arm/mach-shmobile/clock-r8a7740.c9
-rw-r--r--arch/arm/mach-shmobile/clock-r8a7790.c2
-rw-r--r--arch/arm/mach-shmobile/setup-sh73a0.c20
-rw-r--r--arch/arm/mach-tegra/irq.c22
-rw-r--r--arch/arm/mm/proc-v7.S2
-rw-r--r--arch/arm/mm/proc-xscale.S4
-rw-r--r--arch/arm64/kvm/sys_regs.c9
-rw-r--r--arch/ia64/kvm/kvm-ia64.c2
-rw-r--r--arch/mips/Kconfig14
-rw-r--r--arch/mips/include/asm/mipsregs.h2
-rw-r--r--arch/mips/include/asm/r4kcache.h4
-rw-r--r--arch/mips/include/asm/uaccess.h6
-rw-r--r--arch/mips/include/uapi/asm/unistd.h2
-rw-r--r--arch/mips/kernel/bmips_vec.S3
-rw-r--r--arch/mips/kernel/cps-vec.S2
-rw-r--r--arch/mips/kernel/cpu-probe.c33
-rw-r--r--arch/mips/kernel/rtlx.c4
-rw-r--r--arch/mips/kernel/setup.c4
-rw-r--r--arch/mips/kernel/signal.c8
-rw-r--r--arch/mips/loongson/common/Makefile3
-rw-r--r--arch/mips/mm/tlbex.c10
-rw-r--r--arch/mips/mti-sead3/sead3-leds.c8
-rw-r--r--arch/mips/netlogic/xlp/Makefile12
-rw-r--r--arch/powerpc/include/asm/pci-bridge.h2
-rw-r--r--arch/powerpc/kernel/eeh_sysfs.c2
-rw-r--r--arch/powerpc/kernel/pci_64.c10
-rw-r--r--arch/powerpc/kernel/vdso32/getcpu.S4
-rw-r--r--arch/powerpc/platforms/powernv/opal-hmi.c2
-rw-r--r--arch/powerpc/platforms/powernv/pci-ioda.c5
-rw-r--r--arch/powerpc/platforms/powernv/pci.c3
-rw-r--r--arch/powerpc/platforms/pseries/msi.c2
-rw-r--r--arch/powerpc/xmon/xmon.c6
-rw-r--r--arch/sparc/include/asm/dma-mapping.h8
-rw-r--r--arch/x86/include/asm/page_32_types.h1
-rw-r--r--arch/x86/include/asm/page_64_types.h11
-rw-r--r--arch/x86/include/asm/thread_info.h2
-rw-r--r--arch/x86/include/asm/traps.h1
-rw-r--r--arch/x86/kernel/dumpstack_64.c1
-rw-r--r--arch/x86/kernel/entry_64.S81
-rw-r--r--arch/x86/kernel/traps.c71
-rw-r--r--arch/x86/kvm/mmu.c6
75 files changed, 311 insertions, 241 deletions
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index e51fcef884a..60429ad1c5d 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -624,4 +624,8 @@
num-cs = <1>;
};
+&usbdrd_dwc3 {
+ dr_mode = "host";
+};
+
#include "cros-ec-keyboard.dtsi"
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index f21b9aa00fb..d55c1a2eb79 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -555,7 +555,7 @@
#size-cells = <1>;
ranges;
- dwc3 {
+ usbdrd_dwc3: dwc3 {
compatible = "synopsys,dwc3";
reg = <0x12000000 0x10000>;
interrupts = <0 72 0>;
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index d46c213a17a..eed697a6bd6 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -433,7 +433,7 @@
clocks = <&cpg_clocks R8A7740_CLK_S>,
<&cpg_clocks R8A7740_CLK_S>, <&sub_clk>,
<&cpg_clocks R8A7740_CLK_B>,
- <&sub_clk>, <&sub_clk>,
+ <&cpg_clocks R8A7740_CLK_HPP>, <&sub_clk>,
<&cpg_clocks R8A7740_CLK_B>;
#clock-cells = <1>;
renesas,clock-indices = <
diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index d0e17733dc1..e20affe156c 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -666,9 +666,9 @@
#clock-cells = <0>;
clock-output-names = "sd2";
};
- sd3_clk: sd3_clk@e615007c {
+ sd3_clk: sd3_clk@e615026c {
compatible = "renesas,r8a7790-div6-clock", "renesas,cpg-div6-clock";
- reg = <0 0xe615007c 0 4>;
+ reg = <0 0xe615026c 0 4>;
clocks = <&pll1_div2_clk>;
#clock-cells = <0>;
clock-output-names = "sd3";
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index 543f895d18d..2e652e2339e 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -361,6 +361,10 @@
clocks = <&ahb1_gates 6>;
resets = <&ahb1_rst 6>;
#dma-cells = <1>;
+
+ /* DMA controller requires AHB1 clocked from PLL6 */
+ assigned-clocks = <&ahb1_mux>;
+ assigned-clock-parents = <&pll6>;
};
mmc0: mmc@01c0f000 {
diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index 5c21d216515..8b7aa0dcdc6 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -15,6 +15,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps65913@58";
rtc1 = "/rtc@7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra114-roth.dts b/arch/arm/boot/dts/tegra114-roth.dts
index c7c6825f11f..38acf78d781 100644
--- a/arch/arm/boot/dts/tegra114-roth.dts
+++ b/arch/arm/boot/dts/tegra114-roth.dts
@@ -15,6 +15,10 @@
linux,initrd-end = <0x82800000>;
};
+ aliases {
+ serial0 = &uartd;
+ };
+
firmware {
trusted-foundations {
compatible = "tlm,trusted-foundations";
@@ -916,8 +920,6 @@
regulator-name = "vddio-sdmmc3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
- regulator-always-on;
- regulator-boot-on;
};
ldousb {
@@ -962,7 +964,7 @@
sdhci@78000400 {
status = "okay";
bus-width = <4>;
- vmmc-supply = <&vddio_sdmmc3>;
+ vqmmc-supply = <&vddio_sdmmc3>;
cd-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>;
power-gpios = <&gpio TEGRA_GPIO(H, 0) GPIO_ACTIVE_HIGH>;
};
@@ -971,7 +973,6 @@
sdhci@78000600 {
status = "okay";
bus-width = <8>;
- vmmc-supply = <&vdd_1v8>;
non-removable;
};
diff --git a/arch/arm/boot/dts/tegra114-tn7.dts b/arch/arm/boot/dts/tegra114-tn7.dts
index 96366214563..f91c2c9b2f9 100644
--- a/arch/arm/boot/dts/tegra114-tn7.dts
+++ b/arch/arm/boot/dts/tegra114-tn7.dts
@@ -15,6 +15,10 @@
linux,initrd-end = <0x82800000>;
};
+ aliases {
+ serial0 = &uartd;
+ };
+
firmware {
trusted-foundations {
compatible = "tlm,trusted-foundations";
@@ -240,7 +244,6 @@
sdhci@78000600 {
status = "okay";
bus-width = <8>;
- vmmc-supply = <&vdd_1v8>;
non-removable;
};
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 2ca9c1807f7..222f3b3f4dd 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -9,13 +9,6 @@
compatible = "nvidia,tegra114";
interrupt-parent = <&gic>;
- aliases {
- serial0 = &uarta;
- serial1 = &uartb;
- serial2 = &uartc;
- serial3 = &uartd;
- };
-
host1x@50000000 {
compatible = "nvidia,tegra114-host1x", "simple-bus";
reg = <0x50000000 0x00028000>;
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index 029c9a02154..51b373ff106 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@0,7000d000/pmic@40";
rtc1 = "/rtc@0,7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts b/arch/arm/boot/dts/tegra124-nyan-big.dts
index 7d0784ce4c7..53181d31024 100644
--- a/arch/arm/boot/dts/tegra124-nyan-big.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-big.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@0,7000d000/pmic@40";
rtc1 = "/rtc@0,7000e000";
+ serial0 = &uarta;
};
memory {
diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index 13008858e96..5c3f7813360 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@0,7000d000/pmic@40";
rtc1 = "/rtc@0,7000e000";
+ serial0 = &uarta;
};
memory {
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 478c555ebd9..df2b06b2998 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -286,7 +286,7 @@
* the APB DMA based serial driver, the comptible is
* "nvidia,tegra124-hsuart", "nvidia,tegra30-hsuart".
*/
- serial@0,70006000 {
+ uarta: serial@0,70006000 {
compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
reg = <0x0 0x70006000 0x0 0x40>;
reg-shift = <2>;
@@ -299,7 +299,7 @@
status = "disabled";
};
- serial@0,70006040 {
+ uartb: serial@0,70006040 {
compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
reg = <0x0 0x70006040 0x0 0x40>;
reg-shift = <2>;
@@ -312,7 +312,7 @@
status = "disabled";
};
- serial@0,70006200 {
+ uartc: serial@0,70006200 {
compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
reg = <0x0 0x70006200 0x0 0x40>;
reg-shift = <2>;
@@ -325,7 +325,7 @@
status = "disabled";
};
- serial@0,70006300 {
+ uartd: serial@0,70006300 {
compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
reg = <0x0 0x70006300 0x0 0x40>;
reg-shift = <2>;
diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index a37279af687..b926a07b944 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps6586x@34";
rtc1 = "/rtc@7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-iris-512.dts b/arch/arm/boot/dts/tegra20-iris-512.dts
index 8cfb83f42e1..1dd7d7bfdfc 100644
--- a/arch/arm/boot/dts/tegra20-iris-512.dts
+++ b/arch/arm/boot/dts/tegra20-iris-512.dts
@@ -6,6 +6,11 @@
model = "Toradex Colibri T20 512MB on Iris";
compatible = "toradex,iris", "toradex,colibri_t20-512", "nvidia,tegra20";
+ aliases {
+ serial0 = &uarta;
+ serial1 = &uartd;
+ };
+
host1x@50000000 {
hdmi@54280000 {
status = "okay";
diff --git a/arch/arm/boot/dts/tegra20-medcom-wide.dts b/arch/arm/boot/dts/tegra20-medcom-wide.dts
index 1b7c56b33ac..9b87526ab0b 100644
--- a/arch/arm/boot/dts/tegra20-medcom-wide.dts
+++ b/arch/arm/boot/dts/tegra20-medcom-wide.dts
@@ -6,6 +6,10 @@
model = "Avionic Design Medcom-Wide board";
compatible = "ad,medcom-wide", "ad,tamonten", "nvidia,tegra20";
+ aliases {
+ serial0 = &uartd;
+ };
+
pwm@7000a000 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index d4438e30de4..ed7e1009326 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -10,6 +10,8 @@
aliases {
rtc0 = "/i2c@7000d000/tps6586x@34";
rtc1 = "/rtc@7000e000";
+ serial0 = &uarta;
+ serial1 = &uartc;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index a1d4bf9895d..ea282c7c0ca 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps6586x@34";
rtc1 = "/rtc@7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 80e7d386ce3..13d4e618527 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -7,6 +7,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps6586x@34";
rtc1 = "/rtc@7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index 5ad87979ab1..d99af4ef9c6 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@7000c500/rtc@56";
rtc1 = "/rtc@7000e000";
+ serial0 = &uarta;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index ca8484cccdd..04c58e9ca49 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps6586x@34";
rtc1 = "/rtc@7000e000";
+ serial0 = &uartd;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20-whistler.dts b/arch/arm/boot/dts/tegra20-whistler.dts
index 1843725785c..340d81108df 100644
--- a/arch/arm/boot/dts/tegra20-whistler.dts
+++ b/arch/arm/boot/dts/tegra20-whistler.dts
@@ -10,6 +10,7 @@
aliases {
rtc0 = "/i2c@7000d000/max8907@3c";
rtc1 = "/rtc@7000e000";
+ serial0 = &uarta;
};
memory {
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 3b374c49d04..8acf5d85c99 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -9,14 +9,6 @@
compatible = "nvidia,tegra20";
interrupt-parent = <&intc>;
- aliases {
- serial0 = &uarta;
- serial1 = &uartb;
- serial2 = &uartc;
- serial3 = &uartd;
- serial4 = &uarte;
- };
-
host1x@50000000 {
compatible = "nvidia,tegra20-host1x", "simple-bus";
reg = <0x50000000 0x00024000>;
diff --git a/arch/arm/boot/dts/tegra30-apalis-eval.dts b/arch/arm/boot/dts/tegra30-apalis-eval.dts
index 45d40f02458..6236bdecb48 100644
--- a/arch/arm/boot/dts/tegra30-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra30-apalis-eval.dts
@@ -11,6 +11,10 @@
rtc0 = "/i2c@7000c000/rtc@68";
rtc1 = "/i2c@7000d000/tps65911@2d";
rtc2 = "/rtc@7000e000";
+ serial0 = &uarta;
+ serial1 = &uartb;
+ serial2 = &uartc;
+ serial3 = &uartd;
};
pcie-controller@00003000 {
diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index cee8f2246fd..6b157eeabcc 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -9,6 +9,7 @@
aliases {
rtc0 = "/i2c@7000d000/tps65911@2d";
rtc1 = "/rtc@7000e000";
+ serial0 = &uarta;
};
memory {
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 20637954624..a1b682ea01b 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -30,6 +30,8 @@
aliases {
rtc0 = "/i2c@7000d000/tps65911@2d";
rtc1 = "/rtc@7000e000";
+ serial0 = &uarta;
+ serial1 = &uartc;
};
memory {
diff --git a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
index 7793abd5bef..4d3ddc58564 100644
--- a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
@@ -10,6 +10,9 @@
rtc0 = "/i2c@7000c000/rtc@68";
rtc1 = "/i2c@7000d000/tps65911@2d";
rtc2 = "/rtc@7000e000";
+ serial0 = &uarta;
+ serial1 = &uartb;
+ serial2 = &uartd;
};
host1x@50000000 {
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index aa6ccea13d3..b270b9e3d45 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -9,14 +9,6 @@
compatible = "nvidia,tegra30";
interrupt-parent = <&intc>;
- aliases {
- serial0 = &uarta;
- serial1 = &uartb;
- serial2 = &uartc;
- serial3 = &uartd;
- serial4 = &uarte;
- };
-
pcie-controller@00003000 {
compatible = "nvidia,tegra30-pcie";
device_type = "pci";
diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 72058b8a6f4..e21ef830a48 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -142,11 +142,13 @@ CONFIG_MMC_DW_IDMAC=y
CONFIG_MMC_DW_EXYNOS=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_MAX77686=y
+CONFIG_RTC_DRV_MAX77802=y
CONFIG_RTC_DRV_S5M=y
CONFIG_RTC_DRV_S3C=y
CONFIG_DMADEVICES=y
CONFIG_PL330_DMA=y
CONFIG_COMMON_CLK_MAX77686=y
+CONFIG_COMMON_CLK_MAX77802=y
CONFIG_COMMON_CLK_S2MPS11=y
CONFIG_EXYNOS_IOMMU=y
CONFIG_IIO=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 3487046d8a7..9d7a32f93fc 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -217,6 +217,7 @@ CONFIG_I2C_CADENCE=y
CONFIG_I2C_DESIGNWARE_PLATFORM=y
CONFIG_I2C_EXYNOS5=y
CONFIG_I2C_MV64XXX=y
+CONFIG_I2C_S3C2410=y
CONFIG_I2C_SIRF=y
CONFIG_I2C_TEGRA=y
CONFIG_I2C_ST=y
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index fc44d3761f9..ce73ab63541 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -44,16 +44,6 @@ struct cpu_context_save {
__u32 extra[2]; /* Xscale 'acc' register, etc */
};
-struct arm_restart_block {
- union {
- /* For user cache flushing */
- struct {
- unsigned long start;
- unsigned long end;
- } cache;
- };
-};
-
/*
* low level task data that entry.S needs immediate access to.
* __switch_to() assumes cpu_context follows immediately after cpu_domain.
@@ -79,7 +69,6 @@ struct thread_info {
unsigned long thumbee_state; /* ThumbEE Handler Base register */
#endif
struct restart_block restart_block;
- struct arm_restart_block arm_restart_block;
};
#define INIT_THREAD_INFO(tsk) \
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 0c8b10801d3..9f5d81881eb 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -533,8 +533,6 @@ static int bad_syscall(int n, struct pt_regs *regs)
return regs->ARM_r0;
}
-static long do_cache_op_restart(struct restart_block *);
-
static inline int
__do_cache_op(unsigned long start, unsigned long end)
{
@@ -543,24 +541,8 @@ __do_cache_op(unsigned long start, unsigned long end)
do {
unsigned long chunk = min(PAGE_SIZE, end - start);
- if (signal_pending(current)) {
- struct thread_info *ti = current_thread_info();
-
- ti->restart_block = (struct restart_block) {
- .fn = do_cache_op_restart,
- };
-
- ti->arm_restart_block = (struct arm_restart_block) {
- {
- .cache = {
- .start = start,
- .end = end,
- },
- },
- };
-
- return -ERESTART_RESTARTBLOCK;
- }
+ if (fatal_signal_pending(current))
+ return 0;
ret = flush_cache_user_range(start, start + chunk);
if (ret)
@@ -573,15 +555,6 @@ __do_cache_op(unsigned long start, unsigned long end)
return 0;
}
-static long do_cache_op_restart(struct restart_block *unused)
-{
- struct arm_restart_block *restart_block;
-
- restart_block = &current_thread_info()->arm_restart_block;
- return __do_cache_op(restart_block->cache.start,
- restart_block->cache.end);
-}
-
static inline int
do_cache_op(unsigned long start, unsigned long end, int flags)
{
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 57a403a5c22..8664ff17cbb 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -197,7 +197,8 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
pgd = pgdp + pgd_index(addr);
do {
next = kvm_pgd_addr_end(addr, end);
- unmap_puds(kvm, pgd, addr, next);
+ if (!pgd_none(*pgd))
+ unmap_puds(kvm, pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
@@ -834,6 +835,11 @@ static bool kvm_is_write_fault(struct kvm_vcpu *vcpu)
return kvm_vcpu_dabt_iswrite(vcpu);
}
+static bool kvm_is_device_pfn(unsigned long pfn)
+{
+ return !pfn_valid(pfn);
+}
+
static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
struct kvm_memory_slot *memslot, unsigned long hva,
unsigned long fault_status)
@@ -904,7 +910,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
if (is_error_pfn(pfn))
return -EFAULT;
- if (kvm_is_mmio_pfn(pfn))
+ if (kvm_is_device_pfn(pfn))
mem_type = PAGE_S2_DEVICE;
spin_lock(&kvm->mmu_lock);
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 2bdc3233abe..044b51185fc 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -400,6 +400,8 @@ int __init coherency_init(void)
type == COHERENCY_FABRIC_TYPE_ARMADA_380)
armada_375_380_coherency_init(np);
+ of_node_put(np);
+
return 0;
}
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index 0794f0426e7..19df9cb3049 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -455,7 +455,7 @@ enum {
MSTP128, MSTP127, MSTP125,
MSTP116, MSTP111, MSTP100, MSTP117,
- MSTP230,
+ MSTP230, MSTP229,
MSTP222,
MSTP218, MSTP217, MSTP216, MSTP214,
MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
@@ -474,11 +474,12 @@ static struct clk mstp_clks[MSTP_NR] = {
[MSTP127] = SH_CLK_MSTP32(&div4_clks[DIV4_S], SMSTPCR1, 27, 0), /* CEU20 */
[MSTP125] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
[MSTP117] = SH_CLK_MSTP32(&div4_clks[DIV4_B], SMSTPCR1, 17, 0), /* LCDC1 */
- [MSTP116] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
+ [MSTP116] = SH_CLK_MSTP32(&div4_clks[DIV4_HPP], SMSTPCR1, 16, 0), /* IIC0 */
[MSTP111] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR1, 11, 0), /* TMU1 */
[MSTP100] = SH_CLK_MSTP32(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
[MSTP230] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 30, 0), /* SCIFA6 */
+ [MSTP229] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 29, 0), /* INTCA */
[MSTP222] = SH_CLK_MSTP32(&div6_clks[DIV6_SUB], SMSTPCR2, 22, 0), /* SCIFA7 */
[MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
[MSTP217] = SH_CLK_MSTP32(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
@@ -575,6 +576,10 @@ static struct clk_lookup lookups[] = {
CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP222]),
CLKDEV_DEV_ID("e6cd0000.serial", &mstp_clks[MSTP222]),
+ CLKDEV_DEV_ID("renesas_intc_irqpin.0", &mstp_clks[MSTP229]),
+ CLKDEV_DEV_ID("renesas_intc_irqpin.1", &mstp_clks[MSTP229]),
+ CLKDEV_DEV_ID("renesas_intc_irqpin.2", &mstp_clks[MSTP229]),
+ CLKDEV_DEV_ID("renesas_intc_irqpin.3", &mstp_clks[MSTP229]),
CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP230]),
CLKDEV_DEV_ID("e6cc0000.serial", &mstp_clks[MSTP230]),
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index 126ddafad52..f6226520059 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -68,7 +68,7 @@
#define SDCKCR 0xE6150074
#define SD2CKCR 0xE6150078
-#define SD3CKCR 0xE615007C
+#define SD3CKCR 0xE615026C
#define MMC0CKCR 0xE6150240
#define MMC1CKCR 0xE6150244
#define SSPCKCR 0xE6150248
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index b7bd8e50966..328657d011d 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -26,6 +26,7 @@
#include <linux/of_platform.h>
#include <linux/delay.h>
#include <linux/input.h>
+#include <linux/i2c/i2c-sh_mobile.h>
#include <linux/io.h>
#include <linux/serial_sci.h>
#include <linux/sh_dma.h>
@@ -192,11 +193,18 @@ static struct resource i2c4_resources[] = {
},
};
+static struct i2c_sh_mobile_platform_data i2c_platform_data = {
+ .clks_per_count = 2,
+};
+
static struct platform_device i2c0_device = {
.name = "i2c-sh_mobile",
.id = 0,
.resource = i2c0_resources,
.num_resources = ARRAY_SIZE(i2c0_resources),
+ .dev = {
+ .platform_data = &i2c_platform_data,
+ },
};
static struct platform_device i2c1_device = {
@@ -204,6 +212,9 @@ static struct platform_device i2c1_device = {
.id = 1,
.resource = i2c1_resources,
.num_resources = ARRAY_SIZE(i2c1_resources),
+ .dev = {
+ .platform_data = &i2c_platform_data,
+ },
};
static struct platform_device i2c2_device = {
@@ -211,6 +222,9 @@ static struct platform_device i2c2_device = {
.id = 2,
.resource = i2c2_resources,
.num_resources = ARRAY_SIZE(i2c2_resources),
+ .dev = {
+ .platform_data = &i2c_platform_data,
+ },
};
static struct platform_device i2c3_device = {
@@ -218,6 +232,9 @@ static struct platform_device i2c3_device = {
.id = 3,
.resource = i2c3_resources,
.num_resources = ARRAY_SIZE(i2c3_resources),
+ .dev = {
+ .platform_data = &i2c_platform_data,
+ },
};
static struct platform_device i2c4_device = {
@@ -225,6 +242,9 @@ static struct platform_device i2c4_device = {
.id = 4,
.resource = i2c4_resources,
.num_resources = ARRAY_SIZE(i2c4_resources),
+ .dev = {
+ .platform_data = &i2c_platform_data,
+ },
};
static const struct sh_dmae_slave_config sh73a0_dmae_slaves[] = {
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index da7be13aecc..ab95f5391a2 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -99,42 +99,42 @@ static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg)
static void tegra_mask(struct irq_data *d)
{
- if (d->irq < FIRST_LEGACY_IRQ)
+ if (d->hwirq < FIRST_LEGACY_IRQ)
return;
- tegra_irq_write_mask(d->irq, ICTLR_CPU_IER_CLR);
+ tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IER_CLR);
}
static void tegra_unmask(struct irq_data *d)
{
- if (d->irq < FIRST_LEGACY_IRQ)
+ if (d->hwirq < FIRST_LEGACY_IRQ)
return;
- tegra_irq_write_mask(d->irq, ICTLR_CPU_IER_SET);
+ tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IER_SET);
}
static void tegra_ack(struct irq_data *d)
{
- if (d->irq < FIRST_LEGACY_IRQ)
+ if (d->hwirq < FIRST_LEGACY_IRQ)
return;
- tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
+ tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_CLR);
}
static void tegra_eoi(struct irq_data *d)
{
- if (d->irq < FIRST_LEGACY_IRQ)
+ if (d->hwirq < FIRST_LEGACY_IRQ)
return;
- tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_CLR);
+ tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_CLR);
}
static int tegra_retrigger(struct irq_data *d)
{
- if (d->irq < FIRST_LEGACY_IRQ)
+ if (d->hwirq < FIRST_LEGACY_IRQ)
return 0;
- tegra_irq_write_mask(d->irq, ICTLR_CPU_IEP_FIR_SET);
+ tegra_irq_write_mask(d->hwirq, ICTLR_CPU_IEP_FIR_SET);
return 1;
}
@@ -142,7 +142,7 @@ static int tegra_retrigger(struct irq_data *d)
#ifdef CONFIG_PM_SLEEP
static int tegra_set_wake(struct irq_data *d, unsigned int enable)
{
- u32 irq = d->irq;
+ u32 irq = d->hwirq;
u32 index, mask;
if (irq < FIRST_LEGACY_IRQ ||
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index b3a947863ac..22ac2a6fbfe 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -270,7 +270,6 @@ __v7_pj4b_setup:
/* Auxiliary Debug Modes Control 1 Register */
#define PJ4B_STATIC_BP (1 << 2) /* Enable Static BP */
#define PJ4B_INTER_PARITY (1 << 8) /* Disable Internal Parity Handling */
-#define PJ4B_BCK_OFF_STREX (1 << 5) /* Enable the back off of STREX instr */
#define PJ4B_CLEAN_LINE (1 << 16) /* Disable data transfer for clean line */
/* Auxiliary Debug Modes Control 2 Register */
@@ -293,7 +292,6 @@ __v7_pj4b_setup:
/* Auxiliary Debug Modes Control 1 Register */
mrc p15, 1, r0, c15, c1, 1
orr r0, r0, #PJ4B_CLEAN_LINE
- orr r0, r0, #PJ4B_BCK_OFF_STREX
orr r0, r0, #PJ4B_INTER_PARITY
bic r0, r0, #PJ4B_STATIC_BP
mcr p15, 1, r0, c15, c1, 1
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 23259f104c6..afa2b3c4df4 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -535,7 +535,7 @@ ENTRY(cpu_xscale_do_suspend)
mrc p15, 0, r5, c15, c1, 0 @ CP access reg
mrc p15, 0, r6, c13, c0, 0 @ PID
mrc p15, 0, r7, c3, c0, 0 @ domain ID
- mrc p15, 0, r8, c1, c1, 0 @ auxiliary control reg
+ mrc p15, 0, r8, c1, c0, 1 @ auxiliary control reg
mrc p15, 0, r9, c1, c0, 0 @ control reg
bic r4, r4, #2 @ clear frequency change bit
stmia r0, {r4 - r9} @ store cp regs
@@ -552,7 +552,7 @@ ENTRY(cpu_xscale_do_resume)
mcr p15, 0, r6, c13, c0, 0 @ PID
mcr p15, 0, r7, c3, c0, 0 @ domain ID
mcr p15, 0, r1, c2, c0, 0 @ translation table base addr
- mcr p15, 0, r8, c1, c1, 0 @ auxiliary control reg
+ mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg
mov r0, r9 @ control register
b cpu_resume_mmu
ENDPROC(cpu_xscale_do_resume)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 4cc3b719208..3d7c2df8994 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -424,6 +424,11 @@ static const struct sys_reg_desc sys_reg_descs[] = {
/* VBAR_EL1 */
{ Op0(0b11), Op1(0b000), CRn(0b1100), CRm(0b0000), Op2(0b000),
NULL, reset_val, VBAR_EL1, 0 },
+
+ /* ICC_SRE_EL1 */
+ { Op0(0b11), Op1(0b000), CRn(0b1100), CRm(0b1100), Op2(0b101),
+ trap_raz_wi },
+
/* CONTEXTIDR_EL1 */
{ Op0(0b11), Op1(0b000), CRn(0b1101), CRm(0b0000), Op2(0b001),
access_vm_reg, reset_val, CONTEXTIDR_EL1, 0 },
@@ -690,6 +695,10 @@ static const struct sys_reg_desc cp15_regs[] = {
{ Op1( 0), CRn(10), CRm( 2), Op2( 1), access_vm_reg, NULL, c10_NMRR },
{ Op1( 0), CRn(10), CRm( 3), Op2( 0), access_vm_reg, NULL, c10_AMAIR0 },
{ Op1( 0), CRn(10), CRm( 3), Op2( 1), access_vm_reg, NULL, c10_AMAIR1 },
+
+ /* ICC_SRE */
+ { Op1( 0), CRn(12), CRm(12), Op2( 5), trap_raz_wi },
+
{ Op1( 0), CRn(13), CRm( 0), Op2( 1), access_vm_reg, NULL, c13_CID },
};
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index ec6b9acb6be..dbe46f43884 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1563,7 +1563,7 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm,
for (i = 0; i < npages; i++) {
pfn = gfn_to_pfn(kvm, base_gfn + i);
- if (!kvm_is_mmio_pfn(pfn)) {
+ if (!kvm_is_reserved_pfn(pfn)) {
kvm_set_pmt_entry(kvm, base_gfn + i,
pfn << PAGE_SHIFT,
_PAGE_AR_RWX | _PAGE_MA_WB);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f43aa536c51..9536ef912f5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2101,9 +2101,17 @@ config 64BIT_PHYS_ADDR
config ARCH_PHYS_ADDR_T_64BIT
def_bool 64BIT_PHYS_ADDR
+choice
+ prompt "SmartMIPS or microMIPS ASE support"
+
+config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
+ bool "None"
+ help
+ Select this if you want neither microMIPS nor SmartMIPS support
+
config CPU_HAS_SMARTMIPS
depends on SYS_SUPPORTS_SMARTMIPS
- bool "Support for the SmartMIPS ASE"
+ bool "SmartMIPS"
help
SmartMIPS is a extension of the MIPS32 architecture aimed at
increased security at both hardware and software level for
@@ -2115,11 +2123,13 @@ config CPU_HAS_SMARTMIPS
config CPU_MICROMIPS
depends on SYS_SUPPORTS_MICROMIPS
- bool "Build kernel using microMIPS ISA"
+ bool "microMIPS"
help
When this option is enabled the kernel will be built using the
microMIPS ISA
+endchoice
+
config CPU_HAS_MSA
bool "Support for the MIPS SIMD Architecture (EXPERIMENTAL)"
depends on CPU_SUPPORTS_MSA
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index b46cd220a01..22a135ac91d 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -661,6 +661,8 @@
#define MIPS_CONF6_SYND (_ULCAST_(1) << 13)
/* proAptiv FTLB on/off bit */
#define MIPS_CONF6_FTLBEN (_ULCAST_(1) << 15)
+/* FTLB probability bits */
+#define MIPS_CONF6_FTLBP_SHIFT (16)
#define MIPS_CONF7_WII (_ULCAST_(1) << 31)
diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h
index 4520adc8699..cd6e0afc683 100644
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -257,7 +257,11 @@ static inline void protected_flush_icache_line(unsigned long addr)
*/
static inline void protected_writeback_dcache_line(unsigned long addr)
{
+#ifdef CONFIG_EVA
+ protected_cachee_op(Hit_Writeback_Inv_D, addr);
+#else
protected_cache_op(Hit_Writeback_Inv_D, addr);
+#endif
}
static inline void protected_writeback_scache_line(unsigned long addr)
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 133678ab4eb..22a5624e2fd 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -1422,7 +1422,7 @@ static inline long __strnlen_user(const char __user *s, long n)
}
/*
- * strlen_user: - Get the size of a string in user space.
+ * strnlen_user: - Get the size of a string in user space.
* @str: The string to measure.
*
* Context: User context only. This function may sleep.
@@ -1431,9 +1431,7 @@ static inline long __strnlen_user(const char __user *s, long n)
*
* Returns the size of the string INCLUDING the terminating NUL.
* On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
+ * If the string is too long, returns a value greater than @n.
*/
static inline long strnlen_user(const char __user *s, long n)
{
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index 9dc58568f23..d001bb1ad17 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -1045,7 +1045,7 @@
#define __NR_seccomp (__NR_Linux + 316)
#define __NR_getrandom (__NR_Linux + 317)
#define __NR_memfd_create (__NR_Linux + 318)
-#define __NR_memfd_create (__NR_Linux + 319)
+#define __NR_bpf (__NR_Linux + 319)
/*
* Offset of the last N32 flavoured syscall
diff --git a/arch/mips/kernel/bmips_vec.S b/arch/mips/kernel/bmips_vec.S
index 290c23b5167..86495072a92 100644
--- a/arch/mips/kernel/bmips_vec.S
+++ b/arch/mips/kernel/bmips_vec.S
@@ -208,7 +208,6 @@ bmips_reset_nmi_vec_end:
END(bmips_reset_nmi_vec)
.set pop
- .previous
/***********************************************************************
* CPU1 warm restart vector (used for second and subsequent boots).
@@ -281,5 +280,3 @@ LEAF(bmips_enable_xks01)
jr ra
END(bmips_enable_xks01)
-
- .previous
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index e6e97d2a5c9..0384b05ab5a 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -229,6 +229,7 @@ LEAF(mips_cps_core_init)
nop
.set push
+ .set mips32r2
.set mt
/* Only allow 1 TC per VPE to execute... */
@@ -345,6 +346,7 @@ LEAF(mips_cps_boot_vpes)
nop
.set push
+ .set mips32r2
.set mt
1: /* Enter VPE configuration state */
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index d5a4f380b01..dc49cf30c2d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -193,6 +193,32 @@ static void set_isa(struct cpuinfo_mips *c, unsigned int isa)
static char unknown_isa[] = KERN_ERR \
"Unsupported ISA type, c0.config0: %d.";
+static unsigned int calculate_ftlb_probability(struct cpuinfo_mips *c)
+{
+
+ unsigned int probability = c->tlbsize / c->tlbsizevtlb;
+
+ /*
+ * 0 = All TLBWR instructions go to FTLB
+ * 1 = 15:1: For every 16 TBLWR instructions, 15 go to the
+ * FTLB and 1 goes to the VTLB.
+ * 2 = 7:1: As above with 7:1 ratio.
+ * 3 = 3:1: As above with 3:1 ratio.
+ *
+ * Use the linear midpoint as the probability threshold.
+ */
+ if (probability >= 12)
+ return 1;
+ else if (probability >= 6)
+ return 2;
+ else
+ /*
+ * So FTLB is less than 4 times bigger than VTLB.
+ * A 3:1 ratio can still be useful though.
+ */
+ return 3;
+}
+
static void set_ftlb_enable(struct cpuinfo_mips *c, int enable)
{
unsigned int config6;
@@ -203,9 +229,14 @@ static void set_ftlb_enable(struct cpuinfo_mips *c, int enable)
case CPU_P5600:
/* proAptiv & related cores use Config6 to enable the FTLB */
config6 = read_c0_config6();
+ /* Clear the old probability value */
+ config6 &= ~(3 << MIPS_CONF6_FTLBP_SHIFT);
if (enable)
/* Enable FTLB */
- write_c0_config6(config6 | MIPS_CONF6_FTLBEN);
+ write_c0_config6(config6 |
+ (calculate_ftlb_probability(c)
+ << MIPS_CONF6_FTLBP_SHIFT)
+ | MIPS_CONF6_FTLBEN);
else
/* Disable FTLB */
write_c0_config6(config6 & ~MIPS_CONF6_FTLBEN);
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 31b1b763cb2..c5c4fd54d79 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -94,12 +94,12 @@ int rtlx_open(int index, int can_sleep)
int ret = 0;
if (index >= RTLX_CHANNELS) {
- pr_debug(KERN_DEBUG "rtlx_open index out of range\n");
+ pr_debug("rtlx_open index out of range\n");
return -ENOSYS;
}
if (atomic_inc_return(&channel_wqs[index].in_open) > 1) {
- pr_debug(KERN_DEBUG "rtlx_open channel %d already opened\n", index);
+ pr_debug("rtlx_open channel %d already opened\n", index);
ret = -EBUSY;
goto out_fail;
}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index d21ec57b6e9..f3b635f86c3 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -485,7 +485,7 @@ static void __init bootmem_init(void)
* NOTE: historically plat_mem_setup did the entire platform initialization.
* This was rather impractical because it meant plat_mem_setup had to
* get away without any kind of memory allocator. To keep old code from
- * breaking plat_setup was just renamed to plat_setup and a second platform
+ * breaking plat_setup was just renamed to plat_mem_setup and a second platform
* initialization hook for anything else was introduced.
*/
@@ -493,7 +493,7 @@ static int usermem __initdata;
static int __init early_parse_mem(char *p)
{
- unsigned long start, size;
+ phys_t start, size;
/*
* If a user specifies memory size, we
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 1d57605e461..16f1e4f2bf3 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -658,13 +658,13 @@ static int signal_setup(void)
save_fp_context = _save_fp_context;
restore_fp_context = _restore_fp_context;
} else {
- save_fp_context = copy_fp_from_sigcontext;
- restore_fp_context = copy_fp_to_sigcontext;
+ save_fp_context = copy_fp_to_sigcontext;
+ restore_fp_context = copy_fp_from_sigcontext;
}
#endif /* CONFIG_SMP */
#else
- save_fp_context = copy_fp_from_sigcontext;;
- restore_fp_context = copy_fp_to_sigcontext;
+ save_fp_context = copy_fp_to_sigcontext;
+ restore_fp_context = copy_fp_from_sigcontext;
#endif
return 0;
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index 0bb9cc9dc62..d87e03330b2 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -11,7 +11,8 @@ obj-$(CONFIG_PCI) += pci.o
# Serial port support
#
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_SERIAL_8250) += serial.o
+loongson-serial-$(CONFIG_SERIAL_8250) := serial.o
+obj-y += $(loongson-serial-m) $(loongson-serial-y)
obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index b5f228e7eae..e3328a96e80 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1872,8 +1872,16 @@ build_r4000_tlbchange_handler_head(u32 **p, struct uasm_label **l,
uasm_l_smp_pgtable_change(l, *p);
#endif
iPTE_LW(p, wr.r1, wr.r2); /* get even pte */
- if (!m4kc_tlbp_war())
+ if (!m4kc_tlbp_war()) {
build_tlb_probe_entry(p);
+ if (cpu_has_htw) {
+ /* race condition happens, leaving */
+ uasm_i_ehb(p);
+ uasm_i_mfc0(p, wr.r3, C0_INDEX);
+ uasm_il_bltz(p, r, wr.r3, label_leave);
+ uasm_i_nop(p);
+ }
+ }
return wr;
}
diff --git a/arch/mips/mti-sead3/sead3-leds.c b/arch/mips/mti-sead3/sead3-leds.c
index 20102a6d414..c427c577818 100644
--- a/arch/mips/mti-sead3/sead3-leds.c
+++ b/arch/mips/mti-sead3/sead3-leds.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
*/
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
@@ -76,8 +76,4 @@ static int __init led_init(void)
return platform_device_register(&fled_device);
}
-module_init(led_init);
-
-MODULE_AUTHOR("Chris Dearman <chris@mips.com>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("LED probe driver for SEAD-3");
+device_initcall(led_init);
diff --git a/arch/mips/netlogic/xlp/Makefile b/arch/mips/netlogic/xlp/Makefile
index be358a8050c..6b43af0a34d 100644
--- a/arch/mips/netlogic/xlp/Makefile
+++ b/arch/mips/netlogic/xlp/Makefile
@@ -1,6 +1,10 @@
obj-y += setup.o nlm_hal.o cop2-ex.o dt.o
obj-$(CONFIG_SMP) += wakeup.o
-obj-$(CONFIG_USB) += usb-init.o
-obj-$(CONFIG_USB) += usb-init-xlp2.o
-obj-$(CONFIG_SATA_AHCI) += ahci-init.o
-obj-$(CONFIG_SATA_AHCI) += ahci-init-xlp2.o
+ifdef CONFIG_USB
+obj-y += usb-init.o
+obj-y += usb-init-xlp2.o
+endif
+ifdef CONFIG_SATA_AHCI
+obj-y += ahci-init.o
+obj-y += ahci-init-xlp2.o
+endif
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 4ca90a39d6d..725247beebe 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -159,8 +159,6 @@ struct pci_dn {
int pci_ext_config_space; /* for pci devices */
- bool force_32bit_msi;
-
struct pci_dev *pcidev; /* back-pointer to the pci device */
#ifdef CONFIG_EEH
struct eeh_dev *edev; /* eeh device */
diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c
index f19b1e5cb06..1ceecdda810 100644
--- a/arch/powerpc/kernel/eeh_sysfs.c
+++ b/arch/powerpc/kernel/eeh_sysfs.c
@@ -65,7 +65,7 @@ static ssize_t eeh_pe_state_show(struct device *dev,
return -ENODEV;
state = eeh_ops->get_state(edev->pe, NULL);
- return sprintf(buf, "%0x08x %0x08x\n",
+ return sprintf(buf, "0x%08x 0x%08x\n",
state, edev->pe->state);
}
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 155013da27e..b15194e2c5f 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -266,13 +266,3 @@ int pcibus_to_node(struct pci_bus *bus)
}
EXPORT_SYMBOL(pcibus_to_node);
#endif
-
-static void quirk_radeon_32bit_msi(struct pci_dev *dev)
-{
- struct pci_dn *pdn = pci_get_pdn(dev);
-
- if (pdn)
- pdn->force_32bit_msi = true;
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x68f2, quirk_radeon_32bit_msi);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0xaa68, quirk_radeon_32bit_msi);
diff --git a/arch/powerpc/kernel/vdso32/getcpu.S b/arch/powerpc/kernel/vdso32/getcpu.S
index 23eb9a9441b..c62be60c727 100644
--- a/arch/powerpc/kernel/vdso32/getcpu.S
+++ b/arch/powerpc/kernel/vdso32/getcpu.S
@@ -30,8 +30,8 @@
V_FUNCTION_BEGIN(__kernel_getcpu)
.cfi_startproc
mfspr r5,SPRN_SPRG_VDSO_READ
- cmpdi cr0,r3,0
- cmpdi cr1,r4,0
+ cmpwi cr0,r3,0
+ cmpwi cr1,r4,0
clrlwi r6,r5,16
rlwinm r7,r5,16,31-15,31-0
beq cr0,1f
diff --git a/arch/powerpc/platforms/powernv/opal-hmi.c b/arch/powerpc/platforms/powernv/opal-hmi.c
index 5e1ed1575aa..b322bfb5134 100644
--- a/arch/powerpc/platforms/powernv/opal-hmi.c
+++ b/arch/powerpc/platforms/powernv/opal-hmi.c
@@ -57,7 +57,7 @@ static void print_hmi_event_info(struct OpalHMIEvent *hmi_evt)
};
/* Print things out */
- if (hmi_evt->version != OpalHMIEvt_V1) {
+ if (hmi_evt->version < OpalHMIEvt_V1) {
pr_err("HMI Interrupt, Unknown event version %d !\n",
hmi_evt->version);
return;
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 468a0f23c7f..3ba435ec3dc 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1509,7 +1509,6 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
unsigned int is_64, struct msi_msg *msg)
{
struct pnv_ioda_pe *pe = pnv_ioda_get_pe(dev);
- struct pci_dn *pdn = pci_get_pdn(dev);
unsigned int xive_num = hwirq - phb->msi_base;
__be32 data;
int rc;
@@ -1523,7 +1522,7 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
return -ENXIO;
/* Force 32-bit MSI on some broken devices */
- if (pdn && pdn->force_32bit_msi)
+ if (dev->no_64bit_msi)
is_64 = 0;
/* Assign XIVE to PE */
@@ -1997,7 +1996,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
if (is_kdump_kernel()) {
pr_info(" Issue PHB reset ...\n");
ioda_eeh_phb_reset(hose, EEH_RESET_FUNDAMENTAL);
- ioda_eeh_phb_reset(hose, OPAL_DEASSERT_RESET);
+ ioda_eeh_phb_reset(hose, EEH_RESET_DEACTIVATE);
}
/* Configure M64 window */
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index b2187d0068b..4b20f2c6b3b 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -50,7 +50,6 @@ static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
{
struct pci_controller *hose = pci_bus_to_host(pdev->bus);
struct pnv_phb *phb = hose->private_data;
- struct pci_dn *pdn = pci_get_pdn(pdev);
struct msi_desc *entry;
struct msi_msg msg;
int hwirq;
@@ -60,7 +59,7 @@ static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
if (WARN_ON(!phb) || !phb->msi_bmp.bitmap)
return -ENODEV;
- if (pdn && pdn->force_32bit_msi && !phb->msi32_support)
+ if (pdev->no_64bit_msi && !phb->msi32_support)
return -ENODEV;
list_for_each_entry(entry, &pdev->msi_list, list) {
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 8ab5add4ac8..8b909e94fd9 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -420,7 +420,7 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec_in, int type)
*/
again:
if (type == PCI_CAP_ID_MSI) {
- if (pdn->force_32bit_msi) {
+ if (pdev->no_64bit_msi) {
rc = rtas_change_msi(pdn, RTAS_CHANGE_32MSI_FN, nvec);
if (rc < 0) {
/*
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index b988b5addf8..c8efbb37d6e 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -293,10 +293,10 @@ static inline void disable_surveillance(void)
args.token = rtas_token("set-indicator");
if (args.token == RTAS_UNKNOWN_SERVICE)
return;
- args.nargs = 3;
- args.nret = 1;
+ args.nargs = cpu_to_be32(3);
+ args.nret = cpu_to_be32(1);
args.rets = &args.args[3];
- args.args[0] = SURVEILLANCE_TOKEN;
+ args.args[0] = cpu_to_be32(SURVEILLANCE_TOKEN);
args.args[1] = 0;
args.args[2] = 0;
enter_rtas(__pa(&args));
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 5b1b52a04ad..7e064c68c5e 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -12,6 +12,14 @@ int dma_supported(struct device *dev, u64 mask);
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction dir)
+{
+ /* Since dma_{alloc,free}_noncoherent() allocated coherent memory, this
+ * routine can be a nop.
+ */
+}
+
extern struct dma_map_ops *dma_ops;
extern struct dma_map_ops *leon_dma_ops;
extern struct dma_map_ops pci32_dma_ops;
diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h
index f48b17df422..3a52ee0e726 100644
--- a/arch/x86/include/asm/page_32_types.h
+++ b/arch/x86/include/asm/page_32_types.h
@@ -20,7 +20,6 @@
#define THREAD_SIZE_ORDER 1
#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
-#define STACKFAULT_STACK 0
#define DOUBLEFAULT_STACK 1
#define NMI_STACK 0
#define DEBUG_STACK 0
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 678205195ae..75450b2c7be 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -14,12 +14,11 @@
#define IRQ_STACK_ORDER 2
#define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
-#define STACKFAULT_STACK 1
-#define DOUBLEFAULT_STACK 2
-#define NMI_STACK 3
-#define DEBUG_STACK 4
-#define MCE_STACK 5
-#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
+#define DOUBLEFAULT_STACK 1
+#define NMI_STACK 2
+#define DEBUG_STACK 3
+#define MCE_STACK 4
+#define N_EXCEPTION_STACKS 4 /* hw limit: 7 */
#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 854053889d4..547e344a6dc 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -141,7 +141,7 @@ struct thread_info {
/* Only used for 64 bit */
#define _TIF_DO_NOTIFY_MASK \
(_TIF_SIGPENDING | _TIF_MCE_NOTIFY | _TIF_NOTIFY_RESUME | \
- _TIF_USER_RETURN_NOTIFY)
+ _TIF_USER_RETURN_NOTIFY | _TIF_UPROBE)
/* flags to check in __switch_to() */
#define _TIF_WORK_CTXSW \
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index bc8352e7010..707adc6549d 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -39,6 +39,7 @@ asmlinkage void simd_coprocessor_error(void);
#ifdef CONFIG_TRACING
asmlinkage void trace_page_fault(void);
+#define trace_stack_segment stack_segment
#define trace_divide_error divide_error
#define trace_bounds bounds
#define trace_invalid_op invalid_op
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 1abcb50b48a..ff86f19b575 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -24,7 +24,6 @@ static char x86_stack_ids[][8] = {
[ DEBUG_STACK-1 ] = "#DB",
[ NMI_STACK-1 ] = "NMI",
[ DOUBLEFAULT_STACK-1 ] = "#DF",
- [ STACKFAULT_STACK-1 ] = "#SS",
[ MCE_STACK-1 ] = "#MC",
#if DEBUG_STKSZ > EXCEPTION_STKSZ
[ N_EXCEPTION_STACKS ...
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index df088bb03fb..c0226ab5410 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -828,9 +828,15 @@ ENTRY(native_iret)
jnz native_irq_return_ldt
#endif
+.global native_irq_return_iret
native_irq_return_iret:
+ /*
+ * This may fault. Non-paranoid faults on return to userspace are
+ * handled by fixup_bad_iret. These include #SS, #GP, and #NP.
+ * Double-faults due to espfix64 are handled in do_double_fault.
+ * Other faults here are fatal.
+ */
iretq
- _ASM_EXTABLE(native_irq_return_iret, bad_iret)
#ifdef CONFIG_X86_ESPFIX64
native_irq_return_ldt:
@@ -858,25 +864,6 @@ native_irq_return_ldt:
jmp native_irq_return_iret
#endif
- .section .fixup,"ax"
-bad_iret:
- /*
- * The iret traps when the %cs or %ss being restored is bogus.
- * We've lost the original trap vector and error code.
- * #GPF is the most likely one to get for an invalid selector.
- * So pretend we completed the iret and took the #GPF in user mode.
- *
- * We are now running with the kernel GS after exception recovery.
- * But error_entry expects us to have user GS to match the user %cs,
- * so swap back.
- */
- pushq $0
-
- SWAPGS
- jmp general_protection
-
- .previous
-
/* edi: workmask, edx: work */
retint_careful:
CFI_RESTORE_STATE
@@ -922,37 +909,6 @@ ENTRY(retint_kernel)
CFI_ENDPROC
END(common_interrupt)
- /*
- * If IRET takes a fault on the espfix stack, then we
- * end up promoting it to a doublefault. In that case,
- * modify the stack to make it look like we just entered
- * the #GP handler from user space, similar to bad_iret.
- */
-#ifdef CONFIG_X86_ESPFIX64
- ALIGN
-__do_double_fault:
- XCPT_FRAME 1 RDI+8
- movq RSP(%rdi),%rax /* Trap on the espfix stack? */
- sarq $PGDIR_SHIFT,%rax
- cmpl $ESPFIX_PGD_ENTRY,%eax
- jne do_double_fault /* No, just deliver the fault */
- cmpl $__KERNEL_CS,CS(%rdi)
- jne do_double_fault
- movq RIP(%rdi),%rax
- cmpq $native_irq_return_iret,%rax
- jne do_double_fault /* This shouldn't happen... */
- movq PER_CPU_VAR(kernel_stack),%rax
- subq $(6*8-KERNEL_STACK_OFFSET),%rax /* Reset to original stack */
- movq %rax,RSP(%rdi)
- movq $0,(%rax) /* Missing (lost) #GP error code */
- movq $general_protection,RIP(%rdi)
- retq
- CFI_ENDPROC
-END(__do_double_fault)
-#else
-# define __do_double_fault do_double_fault
-#endif
-
/*
* APIC interrupts.
*/
@@ -1124,7 +1080,7 @@ idtentry overflow do_overflow has_error_code=0
idtentry bounds do_bounds has_error_code=0
idtentry invalid_op do_invalid_op has_error_code=0
idtentry device_not_available do_device_not_available has_error_code=0
-idtentry double_fault __do_double_fault has_error_code=1 paranoid=1
+idtentry double_fault do_double_fault has_error_code=1 paranoid=1
idtentry coprocessor_segment_overrun do_coprocessor_segment_overrun has_error_code=0
idtentry invalid_TSS do_invalid_TSS has_error_code=1
idtentry segment_not_present do_segment_not_present has_error_code=1
@@ -1289,7 +1245,7 @@ apicinterrupt3 HYPERVISOR_CALLBACK_VECTOR \
idtentry debug do_debug has_error_code=0 paranoid=1 shift_ist=DEBUG_STACK
idtentry int3 do_int3 has_error_code=0 paranoid=1 shift_ist=DEBUG_STACK
-idtentry stack_segment do_stack_segment has_error_code=1 paranoid=1
+idtentry stack_segment do_stack_segment has_error_code=1
#ifdef CONFIG_XEN
idtentry xen_debug do_debug has_error_code=0
idtentry xen_int3 do_int3 has_error_code=0
@@ -1399,17 +1355,16 @@ error_sti:
/*
* There are two places in the kernel that can potentially fault with
- * usergs. Handle them here. The exception handlers after iret run with
- * kernel gs again, so don't set the user space flag. B stepping K8s
- * sometimes report an truncated RIP for IRET exceptions returning to
- * compat mode. Check for these here too.
+ * usergs. Handle them here. B stepping K8s sometimes report a
+ * truncated RIP for IRET exceptions returning to compat mode. Check
+ * for these here too.
*/
error_kernelspace:
CFI_REL_OFFSET rcx, RCX+8
incl %ebx
leaq native_irq_return_iret(%rip),%rcx
cmpq %rcx,RIP+8(%rsp)
- je error_swapgs
+ je error_bad_iret
movl %ecx,%eax /* zero extend */
cmpq %rax,RIP+8(%rsp)
je bstep_iret
@@ -1420,7 +1375,15 @@ error_kernelspace:
bstep_iret:
/* Fix truncated RIP */
movq %rcx,RIP+8(%rsp)
- jmp error_swapgs
+ /* fall through */
+
+error_bad_iret:
+ SWAPGS
+ mov %rsp,%rdi
+ call fixup_bad_iret
+ mov %rax,%rsp
+ decl %ebx /* Return to usergs */
+ jmp error_sti
CFI_ENDPROC
END(error_entry)
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 0d0e922fafc..de801f22128 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -233,32 +233,40 @@ DO_ERROR(X86_TRAP_UD, SIGILL, "invalid opcode", invalid_op)
DO_ERROR(X86_TRAP_OLD_MF, SIGFPE, "coprocessor segment overrun",coprocessor_segment_overrun)
DO_ERROR(X86_TRAP_TS, SIGSEGV, "invalid TSS", invalid_TSS)
DO_ERROR(X86_TRAP_NP, SIGBUS, "segment not present", segment_not_present)
-#ifdef CONFIG_X86_32
DO_ERROR(X86_TRAP_SS, SIGBUS, "stack segment", stack_segment)
-#endif
DO_ERROR(X86_TRAP_AC, SIGBUS, "alignment check", alignment_check)
#ifdef CONFIG_X86_64
/* Runs on IST stack */
-dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code)
-{
- enum ctx_state prev_state;
-
- prev_state = exception_enter();
- if (notify_die(DIE_TRAP, "stack segment", regs, error_code,
- X86_TRAP_SS, SIGBUS) != NOTIFY_STOP) {
- preempt_conditional_sti(regs);
- do_trap(X86_TRAP_SS, SIGBUS, "stack segment", regs, error_code, NULL);
- preempt_conditional_cli(regs);
- }
- exception_exit(prev_state);
-}
-
dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
{
static const char str[] = "double fault";
struct task_struct *tsk = current;
+#ifdef CONFIG_X86_ESPFIX64
+ extern unsigned char native_irq_return_iret[];
+
+ /*
+ * If IRET takes a non-IST fault on the espfix64 stack, then we
+ * end up promoting it to a doublefault. In that case, modify
+ * the stack to make it look like we just entered the #GP
+ * handler from user space, similar to bad_iret.
+ */
+ if (((long)regs->sp >> PGDIR_SHIFT) == ESPFIX_PGD_ENTRY &&
+ regs->cs == __KERNEL_CS &&
+ regs->ip == (unsigned long)native_irq_return_iret)
+ {
+ struct pt_regs *normal_regs = task_pt_regs(current);
+
+ /* Fake a #GP(0) from userspace. */
+ memmove(&normal_regs->ip, (void *)regs->sp, 5*8);
+ normal_regs->orig_ax = 0; /* Missing (lost) #GP error code */
+ regs->ip = (unsigned long)general_protection;
+ regs->sp = (unsigned long)&normal_regs->orig_ax;
+ return;
+ }
+#endif
+
exception_enter();
/* Return not checked because double check cannot be ignored */
notify_die(DIE_TRAP, str, regs, error_code, X86_TRAP_DF, SIGSEGV);
@@ -399,6 +407,35 @@ asmlinkage __visible struct pt_regs *sync_regs(struct pt_regs *eregs)
return regs;
}
NOKPROBE_SYMBOL(sync_regs);
+
+struct bad_iret_stack {
+ void *error_entry_ret;
+ struct pt_regs regs;
+};
+
+asmlinkage __visible
+struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s)
+{
+ /*
+ * This is called from entry_64.S early in handling a fault
+ * caused by a bad iret to user mode. To handle the fault
+ * correctly, we want move our stack frame to task_pt_regs
+ * and we want to pretend that the exception came from the
+ * iret target.
+ */
+ struct bad_iret_stack *new_stack =
+ container_of(task_pt_regs(current),
+ struct bad_iret_stack, regs);
+
+ /* Copy the IRET target to the new stack. */
+ memmove(&new_stack->regs.ip, (void *)s->regs.sp, 5*8);
+
+ /* Copy the remainder of the stack from the current stack. */
+ memmove(new_stack, s, offsetof(struct bad_iret_stack, regs.ip));
+
+ BUG_ON(!user_mode_vm(&new_stack->regs));
+ return new_stack;
+}
#endif
/*
@@ -778,7 +815,7 @@ void __init trap_init(void)
set_intr_gate(X86_TRAP_OLD_MF, coprocessor_segment_overrun);
set_intr_gate(X86_TRAP_TS, invalid_TSS);
set_intr_gate(X86_TRAP_NP, segment_not_present);
- set_intr_gate_ist(X86_TRAP_SS, &stack_segment, STACKFAULT_STACK);
+ set_intr_gate(X86_TRAP_SS, stack_segment);
set_intr_gate(X86_TRAP_GP, general_protection);
set_intr_gate(X86_TRAP_SPURIOUS, spurious_interrupt_bug);
set_intr_gate(X86_TRAP_MF, coprocessor_error);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index ac1c4de3a48..978f402006e 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -630,7 +630,7 @@ static int mmu_spte_clear_track_bits(u64 *sptep)
* kvm mmu, before reclaiming the page, we should
* unmap it from mmu first.
*/
- WARN_ON(!kvm_is_mmio_pfn(pfn) && !page_count(pfn_to_page(pfn)));
+ WARN_ON(!kvm_is_reserved_pfn(pfn) && !page_count(pfn_to_page(pfn)));
if (!shadow_accessed_mask || old_spte & shadow_accessed_mask)
kvm_set_pfn_accessed(pfn);
@@ -2461,7 +2461,7 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
spte |= PT_PAGE_SIZE_MASK;
if (tdp_enabled)
spte |= kvm_x86_ops->get_mt_mask(vcpu, gfn,
- kvm_is_mmio_pfn(pfn));
+ kvm_is_reserved_pfn(pfn));
if (host_writable)
spte |= SPTE_HOST_WRITEABLE;
@@ -2737,7 +2737,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
* PT_PAGE_TABLE_LEVEL and there would be no adjustment done
* here.
*/
- if (!is_error_noslot_pfn(pfn) && !kvm_is_mmio_pfn(pfn) &&
+ if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn) &&
level == PT_PAGE_TABLE_LEVEL &&
PageTransCompound(pfn_to_page(pfn)) &&
!has_wrprotected_page(vcpu->kvm, gfn, PT_DIRECTORY_LEVEL)) {