166 files changed, 1156 insertions, 563 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 076c35cd6cde..98a1525fa164 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -285,8 +285,12 @@ pcibios_claim_one_bus(struct pci_bus *b)
                        if (r->parent || !r->start || !r->flags)
                                continue;
                        if (pci_has_flag(PCI_PROBE_ONLY) ||
-                            (r->flags & IORESOURCE_PCI_FIXED))
+                            (r->flags & IORESOURCE_PCI_FIXED)) {
-                                pci_claim_resource(dev, i);
+                                if (pci_claim_resource(dev, i) == 0)
+                                        continue;
+                                pci_claim_bridge_resource(dev, i);
+                        }
                }
        }
diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts
index 1466580be295..70b1943a86b1 100644
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -203,27 +203,3 @@
                compatible = "linux,spdif-dir";
        };
 };
-&pinctrl {
-        /*
-         * These pins might be muxed as I2S by
-         * the bootloader, but it conflicts
-         * with the real I2S pins that are
-         * muxed using i2s_pins. We must mux
-         * those pins to a function other than
-         * I2S.
-         */
-        pinctrl-0 = <&hog_pins1 &hog_pins2>;
-        pinctrl-names = "default";
-        hog_pins1: hog-pins1 {
-                marvell,pins = "mpp6",  "mpp8", "mpp10",
-                               "mpp12", "mpp13";
-                marvell,function = "gpio";
-        };
-        hog_pins2: hog-pins2 {
-                marvell,pins = "mpp5", "mpp7", "mpp9";
-                marvell,function = "gpo";
-        };
-};
diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index 1467750e3377..e8c6c600a5b6 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -953,6 +953,8 @@
                        interrupts = <26 IRQ_TYPE_LEVEL_HIGH 3>;
                        pinctrl-names = "default";
                        pinctrl-0 = <&pinctrl_fb>;
+                        clocks = <&lcd_clk>, <&lcd_clk>;
+                        clock-names = "lcdc_clk", "hclk";
                        status = "disabled";
                };
diff --git a/arch/arm/boot/dts/berlin2q-marvell-dmp.dts b/arch/arm/boot/dts/berlin2q-marvell-dmp.dts
index 28e7e2060c33..a98ac1bd8f65 100644
--- a/arch/arm/boot/dts/berlin2q-marvell-dmp.dts
+++ b/arch/arm/boot/dts/berlin2q-marvell-dmp.dts
@@ -65,6 +65,8 @@
 };
 &sdhci2 {
+        broken-cd;
+        bus-width = <8>;
        non-removable;
        status = "okay";
 };
diff --git a/arch/arm/boot/dts/berlin2q.dtsi b/arch/arm/boot/dts/berlin2q.dtsi
index 35253c947a7c..e2f61f27944e 100644
--- a/arch/arm/boot/dts/berlin2q.dtsi
+++ b/arch/arm/boot/dts/berlin2q.dtsi
@@ -83,7 +83,8 @@
                        compatible = "mrvl,pxav3-mmc";
                        reg = <0xab1000 0x200>;
                        interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
-                        clocks = <&chip CLKID_SDIO1XIN>;
+                        clocks = <&chip CLKID_NFC_ECC>, <&chip CLKID_NFC>;
+                        clock-names = "io", "core";
                        status = "disabled";
                };
@@ -348,36 +349,6 @@
                                interrupt-parent = <&gic>;
                                interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
                        };
-                        gpio4: gpio@5000 {
-                                compatible = "snps,dw-apb-gpio";
-                                reg = <0x5000 0x400>;
-                                #address-cells = <1>;
-                                #size-cells = <0>;
-                                porte: gpio-port@4 {
-                                        compatible = "snps,dw-apb-gpio-port";
-                                        gpio-controller;
-                                        #gpio-cells = <2>;
-                                        snps,nr-gpios = <32>;
-                                        reg = <0>;
-                                };
-                        };
-                        gpio5: gpio@c000 {
-                                compatible = "snps,dw-apb-gpio";
-                                reg = <0xc000 0x400>;
-                                #address-cells = <1>;
-                                #size-cells = <0>;
-                                portf: gpio-port@5 {
-                                        compatible = "snps,dw-apb-gpio-port";
-                                        gpio-controller;
-                                        #gpio-cells = <2>;
-                                        snps,nr-gpios = <32>;
-                                        reg = <0>;
-                                };
-                        };
                };
                chip: chip-control@ea0000 {
@@ -466,6 +437,21 @@
                        ranges = <0 0xfc0000 0x10000>;
                        interrupt-parent = <&sic>;
+                        sm_gpio1: gpio@5000 {
+                                compatible = "snps,dw-apb-gpio";
+                                reg = <0x5000 0x400>;
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                portf: gpio-port@5 {
+                                        compatible = "snps,dw-apb-gpio-port";
+                                        gpio-controller;
+                                        #gpio-cells = <2>;
+                                        snps,nr-gpios = <32>;
+                                        reg = <0>;
+                                };
+                        };
                        i2c2: i2c@7000 {
                                compatible = "snps,designware-i2c";
                                #address-cells = <1>;
@@ -516,6 +502,21 @@
                                status = "disabled";
                        };
+                        sm_gpio0: gpio@c000 {
+                                compatible = "snps,dw-apb-gpio";
+                                reg = <0xc000 0x400>;
+                                #address-cells = <1>;
+                                #size-cells = <0>;
+                                porte: gpio-port@4 {
+                                        compatible = "snps,dw-apb-gpio-port";
+                                        gpio-controller;
+                                        #gpio-cells = <2>;
+                                        snps,nr-gpios = <32>;
+                                        reg = <0>;
+                                };
+                        };
                        sysctrl: pin-controller@d000 {
                                compatible = "marvell,berlin2q-system-ctrl";
                                reg = <0xd000 0x100>;
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 10b725c7bfc0..ad4118f7e1a6 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -499,23 +499,23 @@
                };
                partition@5 {
                        label = "QSPI.u-boot-spl-os";
-                        reg = <0x00140000 0x00010000>;
+                        reg = <0x00140000 0x00080000>;
                };
                partition@6 {
                        label = "QSPI.u-boot-env";
-                        reg = <0x00150000 0x00010000>;
+                        reg = <0x001c0000 0x00010000>;
                };
                partition@7 {
                        label = "QSPI.u-boot-env.backup1";
-                        reg = <0x00160000 0x0010000>;
+                        reg = <0x001d0000 0x0010000>;
                };
                partition@8 {
                        label = "QSPI.kernel";
-                        reg = <0x00170000 0x0800000>;
+                        reg = <0x001e0000 0x0800000>;
                };
                partition@9 {
                        label = "QSPI.file-system";
-                        reg = <0x00970000 0x01690000>;
+                        reg = <0x009e0000 0x01620000>;
                };
        };
 };
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 22771bc1643a..63f8b007bdc5 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1257,6 +1257,8 @@
                                tx-fifo-resize;
                                maximum-speed = "super-speed";
                                dr_mode = "otg";
+                                snps,dis_u3_susphy_quirk;
+                                snps,dis_u2_susphy_quirk;
                        };
                };
@@ -1278,6 +1280,8 @@
                                tx-fifo-resize;
                                maximum-speed = "high-speed";
                                dr_mode = "otg";
+                                snps,dis_u3_susphy_quirk;
+                                snps,dis_u2_susphy_quirk;
                        };
                };
@@ -1299,6 +1303,8 @@
                                tx-fifo-resize;
                                maximum-speed = "high-speed";
                                dr_mode = "otg";
+                                snps,dis_u3_susphy_quirk;
+                                snps,dis_u2_susphy_quirk;
                        };
                };
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 0a229fcd7acf..d75c89d7666a 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -736,7 +736,7 @@
        dp_phy: video-phy@10040720 {
                compatible = "samsung,exynos5250-dp-video-phy";
-                reg = <0x10040720 4>;
+                samsung,pmu-syscon = <&pmu_system_controller>;
                #phy-cells = <0>;
        };
diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
index aa7a7d727a7e..db2c1c4cd900 100644
--- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
+++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
@@ -372,3 +372,7 @@
 &usbdrd_dwc3_1 {
        dr_mode = "host";
 };
+&cci {
+        status = "disabled";
+};
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 517e50f6760b..6d38f8bfd0e6 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -120,7 +120,7 @@
                };
        };
-        cci@10d20000 {
+        cci: cci@10d20000 {
                compatible = "arm,cci-400";
                #address-cells = <1>;
                #size-cells = <1>;
@@ -503,8 +503,8 @@
        };
        dp_phy: video-phy@10040728 {
-                compatible = "samsung,exynos5250-dp-video-phy";
+                compatible = "samsung,exynos5420-dp-video-phy";
-                reg = <0x10040728 4>;
+                samsung,pmu-syscon = <&pmu_system_controller>;
                #phy-cells = <0>;
        };
diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
index 58d3c3cf2923..e4d3aecc4ed2 100644
--- a/arch/arm/boot/dts/imx25.dtsi
+++ b/arch/arm/boot/dts/imx25.dtsi
@@ -162,7 +162,7 @@
                                #size-cells = <0>;
                                compatible = "fsl,imx25-cspi", "fsl,imx35-cspi";
                                reg = <0x43fa4000 0x4000>;
-                                clocks = <&clks 62>, <&clks 62>;
+                                clocks = <&clks 78>, <&clks 78>;
                                clock-names = "ipg", "per";
                                interrupts = <14>;
                                status = "disabled";
@@ -369,7 +369,7 @@
                                compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
                                #pwm-cells = <2>;
                                reg = <0x53fa0000 0x4000>;
-                                clocks = <&clks 106>, <&clks 36>;
+                                clocks = <&clks 106>, <&clks 52>;
                                clock-names = "ipg", "per";
                                interrupts = <36>;
                        };
@@ -388,7 +388,7 @@
                                compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
                                #pwm-cells = <2>;
                                reg = <0x53fa8000 0x4000>;
-                                clocks = <&clks 107>, <&clks 36>;
+                                clocks = <&clks 107>, <&clks 52>;
                                clock-names = "ipg", "per";
                                interrupts = <41>;
                        };
@@ -429,7 +429,7 @@
                        pwm4: pwm@53fc8000 {
                                compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
                                reg = <0x53fc8000 0x4000>;
-                                clocks = <&clks 108>, <&clks 36>;
+                                clocks = <&clks 108>, <&clks 52>;
                                clock-names = "ipg", "per";
                                interrupts = <42>;
                        };
@@ -476,7 +476,7 @@
                                compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
                                #pwm-cells = <2>;
                                reg = <0x53fe0000 0x4000>;
-                                clocks = <&clks 105>, <&clks 36>;
+                                clocks = <&clks 105>, <&clks 52>;
                                clock-names = "ipg", "per";
                                interrupts = <26>;
                        };
diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index 56569cecaa78..649befeb2cf9 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -127,24 +127,12 @@
                #address-cells = <1>;
                #size-cells = <0>;
-                reg_usbh1_vbus: regulator@0 {
+                reg_hub_reset: regulator@0 {
-                        compatible = "regulator-fixed";
-                        pinctrl-names = "default";
-                        pinctrl-0 = <&pinctrl_usbh1reg>;
-                        reg = <0>;
-                        regulator-name = "usbh1_vbus";
-                        regulator-min-microvolt = <5000000>;
-                        regulator-max-microvolt = <5000000>;
-                        gpio = <&gpio2 5 GPIO_ACTIVE_HIGH>;
-                        enable-active-high;
-                };
-                reg_usbotg_vbus: regulator@1 {
                        compatible = "regulator-fixed";
                        pinctrl-names = "default";
                        pinctrl-0 = <&pinctrl_usbotgreg>;
-                        reg = <1>;
+                        reg = <0>;
-                        regulator-name = "usbotg_vbus";
+                        regulator-name = "hub_reset";
                        regulator-min-microvolt = <5000000>;
                        regulator-max-microvolt = <5000000>;
                        gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
@@ -176,6 +164,7 @@
                        reg = <0>;
                        clocks = <&clks IMX5_CLK_DUMMY>;
                        clock-names = "main_clk";
+                        reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>;
                };
        };
 };
@@ -419,7 +408,7 @@
 &usbh1 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_usbh1>;
-        vbus-supply = <&reg_usbh1_vbus>;
+        vbus-supply = <&reg_hub_reset>;
        fsl,usbphy = <&usbh1phy>;
        phy_type = "ulpi";
        status = "okay";
@@ -429,7 +418,6 @@
        dr_mode = "otg";
        disable-over-current;
        phy_type = "utmi_wide";
-        vbus-supply = <&reg_usbotg_vbus>;
        status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 4fc03b7f1cee..2109d0763c1b 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -335,8 +335,8 @@
                        vpu: vpu@02040000 {
                                compatible = "cnm,coda960";
                                reg = <0x02040000 0x3c000>;
-                                interrupts = <0 3 IRQ_TYPE_LEVEL_HIGH>,
+                                interrupts = <0 12 IRQ_TYPE_LEVEL_HIGH>,
-                                             <0 12 IRQ_TYPE_LEVEL_HIGH>;
+                                             <0 3 IRQ_TYPE_LEVEL_HIGH>;
                                interrupt-names = "bit", "jpeg";
                                clocks = <&clks IMX6QDL_CLK_VPU_AXI>,
                                         <&clks IMX6QDL_CLK_MMDC_CH0_AXI>,
diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts
index 1e6e5cc1c14c..8c1febd7e3f2 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dts
+++ b/arch/arm/boot/dts/imx6sx-sdb.dts
@@ -159,13 +159,28 @@
        pinctrl-0 = <&pinctrl_enet1>;
        phy-supply = <&reg_enet_3v3>;
        phy-mode = "rgmii";
+        phy-handle = <&ethphy1>;
        status = "okay";
+        mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                ethphy1: ethernet-phy@0 {
+                        reg = <0>;
+                };
+                ethphy2: ethernet-phy@1 {
+                        reg = <1>;
+                };
+        };
 };
 &fec2 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_enet2>;
        phy-mode = "rgmii";
+        phy-handle = <&ethphy2>;
        status = "okay";
 };
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index 657da14cb4b5..c70bb27ac65a 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -142,6 +142,7 @@
                scfg: scfg@1570000 {
                        compatible = "fsl,ls1021a-scfg", "syscon";
                        reg = <0x0 0x1570000 0x0 0x10000>;
+                        big-endian;
                };
                clockgen: clocking@1ee1000 {
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 53f3ca064140..b550c41b46f1 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -700,11 +700,9 @@
                };
        };
+        /* Ethernet is on some early development boards and qemu */
        ethernet@gpmc {
                compatible = "smsc,lan91c94";
-                status = "disabled";
                interrupt-parent = <&gpio2>;
                interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;  /* gpio54 */
                reg = <1 0x300 0xf>;            /* 16 byte IO range at offset 0x300 */
diff --git a/arch/arm/boot/dts/rk3288-evb.dtsi b/arch/arm/boot/dts/rk3288-evb.dtsi
index 3e067dd65d0c..6194d673e80b 100644
--- a/arch/arm/boot/dts/rk3288-evb.dtsi
+++ b/arch/arm/boot/dts/rk3288-evb.dtsi
@@ -155,6 +155,15 @@
 };
 &pinctrl {
+        pcfg_pull_none_drv_8ma: pcfg-pull-none-drv-8ma {
+                drive-strength = <8>;
+        };
+        pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
+                bias-pull-up;
+                drive-strength = <8>;
+        };
        backlight {
                bl_en: bl-en {
                        rockchip,pins = <7 2 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -173,6 +182,27 @@
                };
        };
+        sdmmc {
+                /*
+                 * Default drive strength isn't enough to achieve even
+                 * high-speed mode on EVB board so bump up to 8ma.
+                 */
+                sdmmc_bus4: sdmmc-bus4 {
+                        rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+                                        <6 17 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+                                        <6 18 RK_FUNC_1 &pcfg_pull_up_drv_8ma>,
+                                        <6 19 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
+                };
+                sdmmc_clk: sdmmc-clk {
+                        rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
+                };
+                sdmmc_cmd: sdmmc-cmd {
+                        rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_up_drv_8ma>;
+                };
+        };
        usb {
                host_vbus_drv: host-vbus-drv {
                        rockchip,pins = <0 14 RK_FUNC_GPIO &pcfg_pull_none>;
diff --git a/arch/arm/boot/dts/sama5d3xmb.dtsi b/arch/arm/boot/dts/sama5d3xmb.dtsi
index 49c10d33df30..77e03655aca3 100644
--- a/arch/arm/boot/dts/sama5d3xmb.dtsi
+++ b/arch/arm/boot/dts/sama5d3xmb.dtsi
@@ -176,7 +176,7 @@
                        "Headphone Jack", "HPOUTR",
                        "IN2L", "Line In Jack",
                        "IN2R", "Line In Jack",
-                        "MICBIAS", "IN1L",
+                        "Mic", "MICBIAS",
                        "IN1L", "Mic";
                atmel,ssc-controller = <&ssc0>;
diff --git a/arch/arm/boot/dts/sama5d4.dtsi b/arch/arm/boot/dts/sama5d4.dtsi
index 1b0f30c2c4a5..b94995d1889f 100644
--- a/arch/arm/boot/dts/sama5d4.dtsi
+++ b/arch/arm/boot/dts/sama5d4.dtsi
@@ -1008,7 +1008,7 @@
                        pit: timer@fc068630 {
                                compatible = "atmel,at91sam9260-pit";
-                                reg = <0xfc068630 0xf>;
+                                reg = <0xfc068630 0x10>;
                                interrupts = <3 IRQ_TYPE_LEVEL_HIGH 5>;
                                clocks = <&h32ck>;
                        };
diff --git a/arch/arm/boot/dts/ste-nomadik-nhk15.dts b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
index a8c00ee7522a..3d0b8755caee 100644
--- a/arch/arm/boot/dts/ste-nomadik-nhk15.dts
+++ b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
@@ -25,11 +25,11 @@
                stmpe2401_1 {
                        stmpe2401_1_nhk_mode: stmpe2401_1_nhk {
                                nhk_cfg1 {
-                                        ste,pins = "GPIO76_B20"; // IRQ line
+                                        pins = "GPIO76_B20"; // IRQ line
                                        ste,input = <0>;
                                };
                                nhk_cfg2 {
-                                        ste,pins = "GPIO77_B8"; // reset line
+                                        pins = "GPIO77_B8"; // reset line
                                        ste,output = <1>;
                                };
                        };
@@ -37,11 +37,11 @@
                stmpe2401_2 {
                        stmpe2401_2_nhk_mode: stmpe2401_2_nhk {
                                nhk_cfg1 {
-                                        ste,pins = "GPIO78_A8"; // IRQ line
+                                        pins = "GPIO78_A8"; // IRQ line
                                        ste,input = <0>;
                                };
                                nhk_cfg2 {
-                                        ste,pins = "GPIO79_C9"; // reset line
+                                        pins = "GPIO79_C9"; // reset line
                                        ste,output = <1>;
                                };
                        };
diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index ea282c7c0ca5..e2fed2712249 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -406,7 +406,7 @@
                clock-frequency = <400000>;
                magnetometer@c {
-                        compatible = "ak,ak8975";
+                        compatible = "asahi-kasei,ak8975";
                        reg = <0xc>;
                        interrupt-parent = <&gpio>;
                        interrupts = <TEGRA_GPIO(N, 5) IRQ_TYPE_LEVEL_HIGH>;
diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts
index a0f762159cb2..f2b64b1b00fa 100644
--- a/arch/arm/boot/dts/vf610-twr.dts
+++ b/arch/arm/boot/dts/vf610-twr.dts
@@ -129,13 +129,28 @@
 &fec0 {
        phy-mode = "rmii";
+        phy-handle = <&ethphy0>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_fec0>;
        status = "okay";
+        mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                ethphy0: ethernet-phy@0 {
+                        reg = <0>;
+                };
+                ethphy1: ethernet-phy@1 {
+                        reg = <1>;
+                };
+        };
 };
 &fec1 {
        phy-mode = "rmii";
+        phy-handle = <&ethphy1>;
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_fec1>;
        status = "okay";
diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 5ef14de00a29..3d0c5d65c741 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -84,7 +84,8 @@ CONFIG_DEBUG_GPIO=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_BATTERY_SBS=y
 CONFIG_CHARGER_TPS65090=y
-# CONFIG_HWMON is not set
+CONFIG_HWMON=y
+CONFIG_SENSORS_LM90=y
 CONFIG_THERMAL=y
 CONFIG_EXYNOS_THERMAL=y
 CONFIG_EXYNOS_THERMAL_CORE=y
@@ -109,11 +110,26 @@ CONFIG_REGULATOR_S2MPA01=y
 CONFIG_REGULATOR_S2MPS11=y
 CONFIG_REGULATOR_S5M8767=y
 CONFIG_REGULATOR_TPS65090=y
+CONFIG_DRM=y
+CONFIG_DRM_BRIDGE=y
+CONFIG_DRM_PTN3460=y
+CONFIG_DRM_PS8622=y
+CONFIG_DRM_EXYNOS=y
+CONFIG_DRM_EXYNOS_FIMD=y
+CONFIG_DRM_EXYNOS_DP=y
+CONFIG_DRM_PANEL=y
+CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_SIMPLE=y
 CONFIG_EXYNOS_VIDEO=y
 CONFIG_EXYNOS_MIPI_DSI=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_PLATFORM=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_GENERIC=y
+CONFIG_BACKLIGHT_PWM=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FONTS=y
 CONFIG_FONT_7x14=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 2328fe752e9c..bc393b7e5ece 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -338,6 +338,7 @@ CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_MVEBU=y
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_EXYNOS=y
 CONFIG_USB_EHCI_TEGRA=y
 CONFIG_USB_EHCI_HCD_STI=y
 CONFIG_USB_EHCI_HCD_PLATFORM=y
diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index c2c3a852af9f..667d9d52aa01 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -68,7 +68,7 @@ CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
-CONFIG_GENERIC_CPUFREQ_CPU0=y
+CONFIG_CPUFREQ_DT=y
 # CONFIG_ARM_OMAP2PLUS_CPUFREQ is not set
 CONFIG_CPU_IDLE=y
 CONFIG_BINFMT_MISC=y
diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h
index 705bb7620673..0c3f5a0dafd3 100644
--- a/arch/arm/include/uapi/asm/unistd.h
+++ b/arch/arm/include/uapi/asm/unistd.h
@@ -413,6 +413,7 @@
 #define __NR_getrandom                  (__NR_SYSCALL_BASE+384)
 #define __NR_memfd_create               (__NR_SYSCALL_BASE+385)
 #define __NR_bpf                        (__NR_SYSCALL_BASE+386)
+#define __NR_execveat                   (__NR_SYSCALL_BASE+387)
 /*
 * The following SWIs are ARM private.
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index e51833f8cc38..05745eb838c5 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -396,6 +396,7 @@
                CALL(sys_getrandom)
 /* 385 */       CALL(sys_memfd_create)
                CALL(sys_bpf)
+                CALL(sys_execveat)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 4176df721bf0..1a0045abead7 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -253,21 +253,22 @@
        .endm
        .macro  restore_user_regs, fast = 0, offset = 0
-        ldr     r1, [sp, #\offset + S_PSR]      @ get calling cpsr
+        mov     r2, sp
-        ldr     lr, [sp, #\offset + S_PC]!      @ get pc
+        ldr     r1, [r2, #\offset + S_PSR]      @ get calling cpsr
+        ldr     lr, [r2, #\offset + S_PC]!      @ get pc
        msr     spsr_cxsf, r1                   @ save in spsr_svc
 #if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_32v6K)
        @ We must avoid clrex due to Cortex-A15 erratum #830321
-        strex   r1, r2, [sp]                    @ clear the exclusive monitor
+        strex   r1, r2, [r2]                    @ clear the exclusive monitor
 #endif
        .if     \fast
-        ldmdb   sp, {r1 - lr}^                  @ get calling r1 - lr
+        ldmdb   r2, {r1 - lr}^                  @ get calling r1 - lr
        .else
-        ldmdb   sp, {r0 - lr}^                  @ get calling r0 - lr
+        ldmdb   r2, {r0 - lr}^                  @ get calling r0 - lr
        .endif
        mov     r0, r0                          @ ARMv5T and earlier require a nop
                                                @ after ldm {}^
-        add     sp, sp, #S_FRAME_SIZE - S_PC
+        add     sp, sp, #\offset + S_FRAME_SIZE
        movs    pc, lr                          @ return & move spsr_svc into cpsr
        .endm
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index f7c65adaa428..557e128e4df0 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -116,8 +116,14 @@ int armpmu_event_set_period(struct perf_event *event)
                ret = 1;
        }
-        if (left > (s64)armpmu->max_period)
+        /*
-                left = armpmu->max_period;
+         * Limit the maximum period to prevent the counter value
+         * from overtaking the one we are about to program. In
+         * effect we are reducing max_period to account for
+         * interrupt latency (and we are being very conservative).
+         */
+        if (left > (armpmu->max_period >> 1))
+                left = armpmu->max_period >> 1;
        local64_set(&hwc->prev_count, (u64)-left);
diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c
index 6e4379c67cbc..592dda3f21ff 100644
--- a/arch/arm/kernel/perf_regs.c
+++ b/arch/arm/kernel/perf_regs.c
@@ -28,3 +28,11 @@ u64 perf_reg_abi(struct task_struct *task)
 {
        return PERF_SAMPLE_REGS_ABI_32;
 }
+void perf_get_regs_user(struct perf_regs *regs_user,
+                        struct pt_regs *regs,
+                        struct pt_regs *regs_user_copy)
+{
+        regs_user->regs = task_pt_regs(current);
+        regs_user->abi = perf_reg_abi(current);
+}
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index f9c863911038..e55408e96559 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -657,10 +657,13 @@ int __init arm_add_memory(u64 start, u64 size)
        /*
         * Ensure that start/size are aligned to a page boundary.
-         * Size is appropriately rounded down, start is rounded up.
+         * Size is rounded down, start is rounded up.
         */
-        size -= start & ~PAGE_MASK;
        aligned_start = PAGE_ALIGN(start);
+        if (aligned_start > start + size)
+                size = 0;
+        else
+                size -= aligned_start - start;
 #ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT
        if (aligned_start > ULONG_MAX) {
@@ -1046,6 +1049,15 @@ static int c_show(struct seq_file *m, void *v)
                seq_printf(m, "model name\t: %s rev %d (%s)\n",
                           cpu_name, cpuid & 15, elf_platform);
+#if defined(CONFIG_SMP)
+                seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
+                           per_cpu(cpu_data, i).loops_per_jiffy / (500000UL/HZ),
+                           (per_cpu(cpu_data, i).loops_per_jiffy / (5000UL/HZ)) % 100);
+#else
+                seq_printf(m, "BogoMIPS\t: %lu.%02lu\n",
+                           loops_per_jiffy / (500000/HZ),
+                           (loops_per_jiffy / (5000/HZ)) % 100);
+#endif
                /* dump out the processor features */
                seq_puts(m, "Features\t: ");
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 5e6052e18850..86ef244c5a24 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -387,6 +387,18 @@ asmlinkage void secondary_start_kernel(void)
 void __init smp_cpus_done(unsigned int max_cpus)
 {
+        int cpu;
+        unsigned long bogosum = 0;
+        for_each_online_cpu(cpu)
+                bogosum += per_cpu(cpu_data, cpu).loops_per_jiffy;
+        printk(KERN_INFO "SMP: Total of %d processors activated "
+               "(%lu.%02lu BogoMIPS).\n",
+               num_online_cpus(),
+               bogosum / (500000/HZ),
+               (bogosum / (5000/HZ)) % 100);
        hyp_mode_check();
 }
diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c
index 8fb9ef5333f1..97f7367d32b8 100644
--- a/arch/arm/mach-at91/board-dt-sama5.c
+++ b/arch/arm/mach-at91/board-dt-sama5.c
@@ -17,6 +17,7 @@
 #include <linux/of_platform.h>
 #include <linux/phy.h>
 #include <linux/clk-provider.h>
+#include <linux/phy.h>
 #include <asm/setup.h>
 #include <asm/irq.h>
@@ -26,8 +27,25 @@
 #include "generic.h"
+static int ksz8081_phy_fixup(struct phy_device *phy)
+{
+        int value;
+        value = phy_read(phy, 0x16);
+        value &= ~0x20;
+        phy_write(phy, 0x16, value);
+        return 0;
+}
 static void __init sama5_dt_device_init(void)
 {
+        if (of_machine_is_compatible("atmel,sama5d4ek") &&
+           IS_ENABLED(CONFIG_PHYLIB)) {
+                phy_register_fixup_for_id("fc028000.etherne:00",
+                                                ksz8081_phy_fixup);
+        }
        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 5951660d1bd2..2daef619d053 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -144,7 +144,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
                post_div_table[1].div = 1;
                post_div_table[2].div = 1;
                video_div_table[1].div = 1;
-                video_div_table[2].div = 1;
+                video_div_table[3].div = 1;
        }
        clk[IMX6QDL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 2, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels));
diff --git a/arch/arm/mach-imx/clk-imx6sx.c b/arch/arm/mach-imx/clk-imx6sx.c
index 17354a11356f..5a3e5a159e70 100644
--- a/arch/arm/mach-imx/clk-imx6sx.c
+++ b/arch/arm/mach-imx/clk-imx6sx.c
@@ -558,6 +558,9 @@ static void __init imx6sx_clocks_init(struct device_node *ccm_node)
        clk_set_parent(clks[IMX6SX_CLK_GPU_CORE_SEL], clks[IMX6SX_CLK_PLL3_PFD0]);
        clk_set_parent(clks[IMX6SX_CLK_GPU_AXI_SEL], clks[IMX6SX_CLK_PLL3_PFD0]);
+        clk_set_parent(clks[IMX6SX_CLK_QSPI1_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
+        clk_set_parent(clks[IMX6SX_CLK_QSPI2_SEL], clks[IMX6SX_CLK_PLL2_BUS]);
        /* Set initial power mode */
        imx6q_set_lpm(WAIT_CLOCKED);
 }
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 3585cb394e9b..caa21e9b8cd9 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -246,9 +246,14 @@ static int coherency_type(void)
        return type;
 }
+/*
+ * As a precaution, we currently completely disable hardware I/O
+ * coherency, until enough testing is done with automatic I/O
+ * synchronization barriers to validate that it is a proper solution.
+ */
 int coherency_available(void)
 {
-        return coherency_type() != COHERENCY_FABRIC_TYPE_NONE;
+        return false;
 }
 int __init coherency_init(void)
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 608079a1aba6..b61c049f92d6 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -77,6 +77,24 @@ MACHINE_END
 #endif
 #ifdef CONFIG_ARCH_OMAP3
+/* Some boards need board name for legacy userspace in /proc/cpuinfo */
+static const char *const n900_boards_compat[] __initconst = {
+        "nokia,omap3-n900",
+        NULL,
+};
+DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board")
+        .reserve        = omap_reserve,
+        .map_io         = omap3_map_io,
+        .init_early     = omap3430_init_early,
+        .init_machine   = omap_generic_init,
+        .init_late      = omap3_init_late,
+        .init_time      = omap3_sync32k_timer_init,
+        .dt_compat      = n900_boards_compat,
+        .restart        = omap3xxx_restart,
+MACHINE_END
+/* Generic omap3 boards, most boards can use these */
 static const char *const omap3_boards_compat[] __initconst = {
        "ti,omap3430",
        "ti,omap3",
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 377eea849e7b..64e44d6d07c0 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -211,6 +211,7 @@ extern struct device *omap2_get_iva_device(void);
 extern struct device *omap2_get_l3_device(void);
 extern struct device *omap4_get_dsp_device(void);
+unsigned int omap4_xlate_irq(unsigned int hwirq);
 void omap_gic_of_init(void);
 #ifdef CONFIG_CACHE_L2X0
@@ -249,6 +250,7 @@ extern void omap4_cpu_die(unsigned int cpu);
 extern struct smp_operations omap4_smp_ops;
 extern void omap5_secondary_startup(void);
+extern void omap5_secondary_hyp_startup(void);
 #endif
 #if defined(CONFIG_SMP) && defined(CONFIG_PM)
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a3c013345c45..a80ac2d70bb1 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -286,6 +286,10 @@
 #define OMAP5XXX_CONTROL_STATUS                0x134
 #define OMAP5_DEVICETYPE_MASK          (0x7 << 6)
+/* DRA7XX CONTROL CORE BOOTSTRAP */
+#define DRA7_CTRL_CORE_BOOTSTRAP        0x6c4
+#define DRA7_SPEEDSELECT_MASK           (0x3 << 8)
 /*
 * REVISIT: This list of registers is not comprehensive - there are more
 * that should be added.
diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S
index 4993d4bfe9b2..6d1dffca6c7b 100644
--- a/arch/arm/mach-omap2/omap-headsmp.S
+++ b/arch/arm/mach-omap2/omap-headsmp.S
@@ -22,6 +22,7 @@
 /* Physical address needed since MMU not enabled yet on secondary core */
 #define AUX_CORE_BOOT0_PA                       0x48281800
+#define API_HYP_ENTRY                           0x102
 /*
 * OMAP5 specific entry point for secondary CPU to jump from ROM
@@ -41,6 +42,26 @@ wait:	ldr	r2, =AUX_CORE_BOOT0_PA	@ read from AuxCoreBoot0
        b       secondary_startup
 ENDPROC(omap5_secondary_startup)
 /*
+ * Same as omap5_secondary_startup except we call into the ROM to
+ * enable HYP mode first.  This is called instead of
+ * omap5_secondary_startup if the primary CPU was put into HYP mode by
+ * the boot loader.
+ */
+ENTRY(omap5_secondary_hyp_startup)
+wait_2: ldr     r2, =AUX_CORE_BOOT0_PA  @ read from AuxCoreBoot0
+        ldr     r0, [r2]
+        mov     r0, r0, lsr #5
+        mrc     p15, 0, r4, c0, c0, 5
+        and     r4, r4, #0x0f
+        cmp     r0, r4
+        bne     wait_2
+        ldr     r12, =API_HYP_ENTRY
+        adr     r0, hyp_boot
+        smc     #0
+hyp_boot:
+        b       secondary_startup
+ENDPROC(omap5_secondary_hyp_startup)
+/*
 * OMAP4 specific entry point for secondary CPU to jump from ROM
 * code.  This routine also provides a holding flag into which
 * secondary core is held until we're ready for it to initialise.
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 256e84ef0f67..5305ec7341ec 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -22,6 +22,7 @@
 #include <linux/irqchip/arm-gic.h>
 #include <asm/smp_scu.h>
+#include <asm/virt.h>
 #include "omap-secure.h"
 #include "omap-wakeupgen.h"
@@ -227,8 +228,16 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
        if (omap_secure_apis_support())
                omap_auxcoreboot_addr(virt_to_phys(startup_addr));
        else
-                writel_relaxed(virt_to_phys(omap5_secondary_startup),
+                /*
-                               base + OMAP_AUX_CORE_BOOT_1);
+                 * If the boot CPU is in HYP mode then start secondary
+                 * CPU in HYP mode as well.
+                 */
+                if ((__boot_cpu_mode & MODE_MASK) == HYP_MODE)
+                        writel_relaxed(virt_to_phys(omap5_secondary_hyp_startup),
+                                       base + OMAP_AUX_CORE_BOOT_1);
+                else
+                        writel_relaxed(virt_to_phys(omap5_secondary_startup),
+                                       base + OMAP_AUX_CORE_BOOT_1);
 }
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index b7cb44abe49b..cc30e49a4cc2 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -256,6 +256,38 @@ static int __init omap4_sar_ram_init(void)
 }
 omap_early_initcall(omap4_sar_ram_init);
+static struct of_device_id gic_match[] = {
+        { .compatible = "arm,cortex-a9-gic", },
+        { .compatible = "arm,cortex-a15-gic", },
+        { },
+};
+static struct device_node *gic_node;
+unsigned int omap4_xlate_irq(unsigned int hwirq)
+{
+        struct of_phandle_args irq_data;
+        unsigned int irq;
+        if (!gic_node)
+                gic_node = of_find_matching_node(NULL, gic_match);
+        if (WARN_ON(!gic_node))
+                return hwirq;
+        irq_data.np = gic_node;
+        irq_data.args_count = 3;
+        irq_data.args[0] = 0;
+        irq_data.args[1] = hwirq - OMAP44XX_IRQ_GIC_START;
+        irq_data.args[2] = IRQ_TYPE_LEVEL_HIGH;
+        irq = irq_create_of_mapping(&irq_data);
+        if (WARN_ON(!irq))
+                irq = hwirq;
+        return irq;
+}
 void __init omap_gic_of_init(void)
 {
        struct device_node *np;
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index cbb908dc5cf0..9025ffffd2dc 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -3534,9 +3534,15 @@ int omap_hwmod_fill_resources(struct omap_hwmod *oh, struct resource *res)
        mpu_irqs_cnt = _count_mpu_irqs(oh);
        for (i = 0; i < mpu_irqs_cnt; i++) {
+                unsigned int irq;
+                if (oh->xlate_irq)
+                        irq = oh->xlate_irq((oh->mpu_irqs + i)->irq);
+                else
+                        irq = (oh->mpu_irqs + i)->irq;
                (res + r)->name = (oh->mpu_irqs + i)->name;
-                (res + r)->start = (oh->mpu_irqs + i)->irq;
+                (res + r)->start = irq;
-                (res + r)->end = (oh->mpu_irqs + i)->irq;
+                (res + r)->end = irq;
                (res + r)->flags = IORESOURCE_IRQ;
                r++;
        }
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index 35ca6efbec31..5b42fafcaf55 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -676,6 +676,7 @@ struct omap_hwmod {
        spinlock_t                      _lock;
        struct list_head                node;
        struct omap_hwmod_ocp_if        *_mpu_port;
+        unsigned int                    (*xlate_irq)(unsigned int);
        u16                             flags;
        u8                              mpu_rt_idx;
        u8                              response_lat;
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index c314b3c31117..f5e68a782025 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -479,6 +479,7 @@ static struct omap_hwmod omap44xx_dma_system_hwmod = {
        .class          = &omap44xx_dma_hwmod_class,
        .clkdm_name     = "l3_dma_clkdm",
        .mpu_irqs       = omap44xx_dma_system_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .main_clk       = "l3_div_ck",
        .prcm = {
                .omap4 = {
@@ -640,6 +641,7 @@ static struct omap_hwmod omap44xx_dss_dispc_hwmod = {
        .class          = &omap44xx_dispc_hwmod_class,
        .clkdm_name     = "l3_dss_clkdm",
        .mpu_irqs       = omap44xx_dss_dispc_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .sdma_reqs      = omap44xx_dss_dispc_sdma_reqs,
        .main_clk       = "dss_dss_clk",
        .prcm = {
@@ -693,6 +695,7 @@ static struct omap_hwmod omap44xx_dss_dsi1_hwmod = {
        .class          = &omap44xx_dsi_hwmod_class,
        .clkdm_name     = "l3_dss_clkdm",
        .mpu_irqs       = omap44xx_dss_dsi1_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .sdma_reqs      = omap44xx_dss_dsi1_sdma_reqs,
        .main_clk       = "dss_dss_clk",
        .prcm = {
@@ -726,6 +729,7 @@ static struct omap_hwmod omap44xx_dss_dsi2_hwmod = {
        .class          = &omap44xx_dsi_hwmod_class,
        .clkdm_name     = "l3_dss_clkdm",
        .mpu_irqs       = omap44xx_dss_dsi2_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .sdma_reqs      = omap44xx_dss_dsi2_sdma_reqs,
        .main_clk       = "dss_dss_clk",
        .prcm = {
@@ -784,6 +788,7 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = {
         */
        .flags          = HWMOD_SWSUP_SIDLE,
        .mpu_irqs       = omap44xx_dss_hdmi_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .sdma_reqs      = omap44xx_dss_hdmi_sdma_reqs,
        .main_clk       = "dss_48mhz_clk",
        .prcm = {
diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index 3e9523084b2a..7c3fac035e93 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -288,6 +288,7 @@ static struct omap_hwmod omap54xx_dma_system_hwmod = {
        .class          = &omap54xx_dma_hwmod_class,
        .clkdm_name     = "dma_clkdm",
        .mpu_irqs       = omap54xx_dma_system_irqs,
+        .xlate_irq      = omap4_xlate_irq,
        .main_clk       = "l3_iclk_div",
        .prcm = {
                .omap4 = {
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index a8e4b582c527..6163d66102a3 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -498,6 +498,7 @@ struct omap_prcm_irq_setup {
        u8 nr_irqs;
        const struct omap_prcm_irq *irqs;
        int irq;
+        unsigned int (*xlate_irq)(unsigned int);
        void (*read_pending_irqs)(unsigned long *events);
        void (*ocp_barrier)(void);
        void (*save_and_clear_irqen)(u32 *saved_mask);
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index cc170fb81ff7..408c64efb807 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -49,6 +49,7 @@ static struct omap_prcm_irq_setup omap4_prcm_irq_setup = {
        .irqs                   = omap4_prcm_irqs,
        .nr_irqs                = ARRAY_SIZE(omap4_prcm_irqs),
        .irq                    = 11 + OMAP44XX_IRQ_GIC_START,
+        .xlate_irq              = omap4_xlate_irq,
        .read_pending_irqs      = &omap44xx_prm_read_pending_irqs,
        .ocp_barrier            = &omap44xx_prm_ocp_barrier,
        .save_and_clear_irqen   = &omap44xx_prm_save_and_clear_irqen,
@@ -751,8 +752,10 @@ static int omap44xx_prm_late_init(void)
                }
                /* Once OMAP4 DT is filled as well */
-                if (irq_num >= 0)
+                if (irq_num >= 0) {
                        omap4_prcm_irq_setup.irq = irq_num;
+                        omap4_prcm_irq_setup.xlate_irq = NULL;
+                }
        }
        omap44xx_prm_enable_io_wakeup();
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 779940cb6e56..dea2833ca627 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -187,6 +187,7 @@ int omap_prcm_event_to_irq(const char *name)
 */
 void omap_prcm_irq_cleanup(void)
 {
+        unsigned int irq;
        int i;
        if (!prcm_irq_setup) {
@@ -211,7 +212,11 @@ void omap_prcm_irq_cleanup(void)
        kfree(prcm_irq_setup->priority_mask);
        prcm_irq_setup->priority_mask = NULL;
-        irq_set_chained_handler(prcm_irq_setup->irq, NULL);
+        if (prcm_irq_setup->xlate_irq)
+                irq = prcm_irq_setup->xlate_irq(prcm_irq_setup->irq);
+        else
+                irq = prcm_irq_setup->irq;
+        irq_set_chained_handler(irq, NULL);
        if (prcm_irq_setup->base_irq > 0)
                irq_free_descs(prcm_irq_setup->base_irq,
@@ -259,6 +264,7 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
        int offset, i;
        struct irq_chip_generic *gc;
        struct irq_chip_type *ct;
+        unsigned int irq;
        if (!irq_setup)
                return -EINVAL;
@@ -298,7 +304,11 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
                                1 << (offset & 0x1f);
        }
-        irq_set_chained_handler(irq_setup->irq, omap_prcm_irq_handler);
+        if (irq_setup->xlate_irq)
+                irq = irq_setup->xlate_irq(irq_setup->irq);
+        else
+                irq = irq_setup->irq;
+        irq_set_chained_handler(irq, omap_prcm_irq_handler);
        irq_setup->base_irq = irq_alloc_descs(-1, 0, irq_setup->nr_regs * 32,
                0);
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 4f61148ec168..7d45c84c69ba 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -54,6 +54,7 @@
 #include "soc.h"
 #include "common.h"
+#include "control.h"
 #include "powerdomain.h"
 #include "omap-secure.h"
@@ -496,7 +497,8 @@ static void __init realtime_counter_init(void)
        void __iomem *base;
        static struct clk *sys_clk;
        unsigned long rate;
-        unsigned int reg, num, den;
+        unsigned int reg;
+        unsigned long long num, den;
        base = ioremap(REALTIME_COUNTER_BASE, SZ_32);
        if (!base) {
@@ -511,13 +513,42 @@ static void __init realtime_counter_init(void)
        }
        rate = clk_get_rate(sys_clk);
+        if (soc_is_dra7xx()) {
+                /*
+                 * Errata i856 says the 32.768KHz crystal does not start at
+                 * power on, so the CPU falls back to an emulated 32KHz clock
+                 * based on sysclk / 610 instead. This causes the master counter
+                 * frequency to not be 6.144MHz but at sysclk / 610 * 375 / 2
+                 * (OR sysclk * 75 / 244)
+                 *
+                 * This affects at least the DRA7/AM572x 1.0, 1.1 revisions.
+                 * Of course any board built without a populated 32.768KHz
+                 * crystal would also need this fix even if the CPU is fixed
+                 * later.
+                 *
+                 * Either case can be detected by using the two speedselect bits
+                 * If they are not 0, then the 32.768KHz clock driving the
+                 * coarse counter that corrects the fine counter every time it
+                 * ticks is actually rate/610 rather than 32.768KHz and we
+                 * should compensate to avoid the 570ppm (at 20MHz, much worse
+                 * at other rates) too fast system time.
+                 */
+                reg = omap_ctrl_readl(DRA7_CTRL_CORE_BOOTSTRAP);
+                if (reg & DRA7_SPEEDSELECT_MASK) {
+                        num = 75;
+                        den = 244;
+                        goto sysclk1_based;
+                }
+        }
        /* Numerator/denumerator values refer TRM Realtime Counter section */
        switch (rate) {
-        case 1200000:
+        case 12000000:
                num = 64;
                den = 125;
                break;
-        case 1300000:
+        case 13000000:
                num = 768;
                den = 1625;
                break;
@@ -529,11 +560,11 @@ static void __init realtime_counter_init(void)
                num = 192;
                den = 625;
                break;
-        case 2600000:
+        case 26000000:
                num = 384;
                den = 1625;
                break;
-        case 2700000:
+        case 27000000:
                num = 256;
                den = 1125;
                break;
@@ -545,6 +576,7 @@ static void __init realtime_counter_init(void)
                break;
        }
+sysclk1_based:
        /* Program numerator and denumerator registers */
        reg = readl_relaxed(base + INCREMENTER_NUMERATOR_OFFSET) &
                        NUMERATOR_DENUMERATOR_MASK;
@@ -556,7 +588,7 @@ static void __init realtime_counter_init(void)
        reg |= den;
        writel_relaxed(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET);
-        arch_timer_freq = (rate / den) * num;
+        arch_timer_freq = DIV_ROUND_UP_ULL(rate * num, den);
        set_cntfreq();
        iounmap(base);
diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 4457e731f7a4..292eca0e78ed 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -66,19 +66,24 @@ void __init omap_pmic_init(int bus, u32 clkrate,
        omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1);
 }
+#ifdef CONFIG_ARCH_OMAP4
 void __init omap4_pmic_init(const char *pmic_type,
                    struct twl4030_platform_data *pmic_data,
                    struct i2c_board_info *devices, int nr_devices)
 {
        /* PMIC part*/
+        unsigned int irq;
        omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
        omap_mux_init_signal("fref_clk0_out.sys_drm_msecure", OMAP_PIN_OUTPUT);
-        omap_pmic_init(1, 400, pmic_type, 7 + OMAP44XX_IRQ_GIC_START, pmic_data);
+        irq = omap4_xlate_irq(7 + OMAP44XX_IRQ_GIC_START);
+        omap_pmic_init(1, 400, pmic_type, irq, pmic_data);
        /* Register additional devices on i2c1 bus if needed */
        if (devices)
                i2c_register_board_info(1, devices, nr_devices);
 }
+#endif
 void __init omap_pmic_late_init(void)
 {
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index d226b71d21d5..a611f4852582 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -19,11 +19,37 @@
 #include <linux/init.h>
 #include <linux/of_platform.h>
 #include <linux/irqchip.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/hardware/cache-l2x0.h>
 #include "core.h"
+#define RK3288_GRF_SOC_CON0 0x244
+static void __init rockchip_timer_init(void)
+{
+        if (of_machine_is_compatible("rockchip,rk3288")) {
+                struct regmap *grf;
+                /*
+                 * Disable auto jtag/sdmmc switching that causes issues
+                 * with the mmc controllers making them unreliable
+                 */
+                grf = syscon_regmap_lookup_by_compatible("rockchip,rk3288-grf");
+                if (!IS_ERR(grf))
+                        regmap_write(grf, RK3288_GRF_SOC_CON0, 0x10000000);
+                else
+                        pr_err("rockchip: could not get grf syscon\n");
+        }
+        of_clk_init(NULL);
+        clocksource_of_init();
+}
 static void __init rockchip_dt_init(void)
 {
        of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
@@ -42,6 +68,7 @@ static const char * const rockchip_board_dt_compat[] = {
 DT_MACHINE_START(ROCKCHIP_DT, "Rockchip Cortex-A9 (Device Tree)")
        .l2c_aux_val    = 0,
        .l2c_aux_mask   = ~0,
+        .init_time      = rockchip_timer_init,
        .dt_compat      = rockchip_board_dt_compat,
        .init_machine   = rockchip_dt_init,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 79ad93dfdae4..d191cf419731 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -800,7 +800,14 @@ void __init r8a7740_init_irq_of(void)
        void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10);
        void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4);
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000);
+        void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000);
+        gic_init(0, 29, gic_dist_base, gic_cpu_base);
+#else
        irqchip_init();
+#endif
        /* route signals to GIC */
        iowrite32(0x0, pfc_inta_ctrl);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index 170bd146ba17..cef8895a9b82 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -576,11 +576,18 @@ void __init r8a7778_init_irq_extpin(int irlm)
 void __init r8a7778_init_irq_dt(void)
 {
        void __iomem *base = ioremap_nocache(0xfe700000, 0x00100000);
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        void __iomem *gic_dist_base = ioremap_nocache(0xfe438000, 0x1000);
+        void __iomem *gic_cpu_base = ioremap_nocache(0xfe430000, 0x1000);
+#endif
        BUG_ON(!base);
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        gic_init(0, 29, gic_dist_base, gic_cpu_base);
+#else
        irqchip_init();
+#endif
        /* route all interrupts to ARM */
        __raw_writel(0x73ffffff, base + INT2NTSR0);
        __raw_writel(0xffffffff, base + INT2NTSR1);
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index 6156d172cf31..27dceaf9e688 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -720,10 +720,17 @@ static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
 void __init r8a7779_init_irq_dt(void)
 {
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        void __iomem *gic_dist_base = ioremap_nocache(0xf0001000, 0x1000);
+        void __iomem *gic_cpu_base = ioremap_nocache(0xf0000100, 0x1000);
+#endif
        gic_arch_extn.irq_set_wake = r8a7779_set_wake;
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+        gic_init(0, 29, gic_dist_base, gic_cpu_base);
+#else
        irqchip_init();
+#endif
        /* route all interrupts to ARM */
        __raw_writel(0xffffffff, INT2NTSR0);
        __raw_writel(0x3fffffff, INT2NTSR1);
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 93ebe3430bfe..fb5e1bb34be8 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -595,6 +595,7 @@ static struct platform_device ipmmu_device = {
 static struct renesas_intc_irqpin_config irqpin0_platform_data = {
        .irq_base = irq_pin(0), /* IRQ0 -> IRQ7 */
+        .control_parent = true,
 };
 static struct resource irqpin0_resources[] = {
@@ -656,6 +657,7 @@ static struct platform_device irqpin1_device = {
 static struct renesas_intc_irqpin_config irqpin2_platform_data = {
        .irq_base = irq_pin(16), /* IRQ16 -> IRQ23 */
+        .control_parent = true,
 };
 static struct resource irqpin2_resources[] = {
@@ -686,6 +688,7 @@ static struct platform_device irqpin2_device = {
 static struct renesas_intc_irqpin_config irqpin3_platform_data = {
        .irq_base = irq_pin(24), /* IRQ24 -> IRQ31 */
+        .control_parent = true,
 };
 static struct resource irqpin3_resources[] = {
diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
index 59424937e52b..9fe8e241335c 100644
--- a/arch/arm/mm/dump.c
+++ b/arch/arm/mm/dump.c
@@ -220,9 +220,6 @@ static void note_page(struct pg_state *st, unsigned long addr, unsigned level, u
        static const char units[] = "KMGTPE";
        u64 prot = val & pg_level[level].mask;
-        if (addr < USER_PGTABLES_CEILING)
-                return;
        if (!st->level) {
                st->level = level;
                st->current_prot = prot;
@@ -308,15 +305,13 @@ static void walk_pgd(struct seq_file *m)
        pgd_t *pgd = swapper_pg_dir;
        struct pg_state st;
        unsigned long addr;
-        unsigned i, pgdoff = USER_PGTABLES_CEILING / PGDIR_SIZE;
+        unsigned i;
        memset(&st, 0, sizeof(st));
        st.seq = m;
        st.marker = address_markers;
-        pgd += pgdoff;
+        for (i = 0; i < PTRS_PER_PGD; i++, pgd++) {
-        for (i = pgdoff; i < PTRS_PER_PGD; i++, pgd++) {
                addr = i * PGDIR_SIZE;
                if (!pgd_none(*pgd)) {
                        walk_pud(&st, pgd, addr);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 98ad9c79ea0e..2495c8cb47ba 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -658,8 +658,8 @@ static struct section_perm ro_perms[] = {
                .start  = (unsigned long)_stext,
                .end    = (unsigned long)__init_begin,
 #ifdef CONFIG_ARM_LPAE
-                .mask   = ~PMD_SECT_RDONLY,
+                .mask   = ~L_PMD_SECT_RDONLY,
-                .prot   = PMD_SECT_RDONLY,
+                .prot   = L_PMD_SECT_RDONLY,
 #else
                .mask   = ~(PMD_SECT_APX | PMD_SECT_AP_WRITE),
                .prot   = PMD_SECT_APX | PMD_SECT_AP_WRITE,
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index cda7c40999b6..4e6ef896c619 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1329,8 +1329,8 @@ static void __init kmap_init(void)
 static void __init map_lowmem(void)
 {
        struct memblock_region *reg;
-        unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
+        phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-        unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
+        phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
        /* Map all the lowmem memory banks. */
        for_each_memblock(memory, reg) {
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 1c43cec971b5..066688863920 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -85,6 +85,7 @@ vdso_install:
 # We use MRPROPER_FILES and CLEAN_FILES now
 archclean:
        $(Q)$(MAKE) $(clean)=$(boot)
+        $(Q)$(MAKE) $(clean)=$(boot)/dts
 define archhelp
  echo  '* Image.gz      - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)'
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 3b8d427c3985..c62b0f4d9ef6 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -3,6 +3,4 @@ dts-dirs += apm
 dts-dirs += arm
 dts-dirs += cavium
-always          := $(dtb-y)
 subdir-y        := $(dts-dirs)
-clean-files     := *.dtb
diff --git a/arch/arm64/boot/dts/arm/juno.dts b/arch/arm64/boot/dts/arm/juno.dts
index cb3073e4e7a8..d429129ecb3d 100644
--- a/arch/arm64/boot/dts/arm/juno.dts
+++ b/arch/arm64/boot/dts/arm/juno.dts
@@ -22,7 +22,7 @@
        };
        chosen {
-                stdout-path = &soc_uart0;
+                stdout-path = "serial0:115200n8";
        };
        psci {
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index b1fa4e614718..fbe0ca31a99c 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -21,6 +21,7 @@
 #include <asm/barrier.h>
+#include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/types.h>
diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
index ace70682499b..8e797b2fcc01 100644
--- a/arch/arm64/include/asm/cpu.h
+++ b/arch/arm64/include/asm/cpu.h
@@ -39,6 +39,7 @@ struct cpuinfo_arm64 {
        u64             reg_id_aa64pfr0;
        u64             reg_id_aa64pfr1;
+        u32             reg_id_dfr0;
        u32             reg_id_isar0;
        u32             reg_id_isar1;
        u32             reg_id_isar2;
@@ -51,6 +52,10 @@ struct cpuinfo_arm64 {
        u32             reg_id_mmfr3;
        u32             reg_id_pfr0;
        u32             reg_id_pfr1;
+        u32             reg_mvfr0;
+        u32             reg_mvfr1;
+        u32             reg_mvfr2;
 };
 DECLARE_PER_CPU(struct cpuinfo_arm64, cpu_data);
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index 8127e45e2637..865a7e28ea2d 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -41,6 +41,8 @@ void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
 static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu)
 {
        vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS;
+        if (test_bit(KVM_ARM_VCPU_EL1_32BIT, vcpu->arch.features))
+                vcpu->arch.hcr_el2 &= ~HCR_RW;
 }
 static inline unsigned long *vcpu_pc(const struct kvm_vcpu *vcpu)
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index 286b1bec547c..f9be30ea1cbd 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -31,6 +31,7 @@
 #include <asm/fpsimd.h>
 #include <asm/hw_breakpoint.h>
+#include <asm/pgtable-hwdef.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
@@ -123,9 +124,6 @@ struct task_struct;
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk)    do { } while (0)
 unsigned long get_wchan(struct task_struct *p);
 #define cpu_relax()                     barrier()
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 49c9aefd24a5..23e9432ac112 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -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            386
+#define __NR_compat_syscalls            388
 #endif
 #define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 8893cebcea5b..27224426e0bf 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -795,3 +795,5 @@ __SYSCALL(__NR_getrandom, sys_getrandom)
 __SYSCALL(__NR_memfd_create, sys_memfd_create)
 #define __NR_bpf 386
 __SYSCALL(__NR_bpf, sys_bpf)
+#define __NR_execveat 387
+__SYSCALL(__NR_execveat, compat_sys_execveat)
diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c
index 57b641747534..07d435cf2eea 100644
--- a/arch/arm64/kernel/cpuinfo.c
+++ b/arch/arm64/kernel/cpuinfo.c
@@ -147,6 +147,7 @@ static void cpuinfo_sanity_check(struct cpuinfo_arm64 *cur)
         * If we have AArch32, we care about 32-bit features for compat. These
         * registers should be RES0 otherwise.
         */
+        diff |= CHECK(id_dfr0, boot, cur, cpu);
        diff |= CHECK(id_isar0, boot, cur, cpu);
        diff |= CHECK(id_isar1, boot, cur, cpu);
        diff |= CHECK(id_isar2, boot, cur, cpu);
@@ -165,6 +166,10 @@ static void cpuinfo_sanity_check(struct cpuinfo_arm64 *cur)
        diff |= CHECK(id_pfr0, boot, cur, cpu);
        diff |= CHECK(id_pfr1, boot, cur, cpu);
+        diff |= CHECK(mvfr0, boot, cur, cpu);
+        diff |= CHECK(mvfr1, boot, cur, cpu);
+        diff |= CHECK(mvfr2, boot, cur, cpu);
        /*
         * Mismatched CPU features are a recipe for disaster. Don't even
         * pretend to support them.
@@ -189,6 +194,7 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
        info->reg_id_aa64pfr0 = read_cpuid(ID_AA64PFR0_EL1);
        info->reg_id_aa64pfr1 = read_cpuid(ID_AA64PFR1_EL1);
+        info->reg_id_dfr0 = read_cpuid(ID_DFR0_EL1);
        info->reg_id_isar0 = read_cpuid(ID_ISAR0_EL1);
        info->reg_id_isar1 = read_cpuid(ID_ISAR1_EL1);
        info->reg_id_isar2 = read_cpuid(ID_ISAR2_EL1);
@@ -202,6 +208,10 @@ static void __cpuinfo_store_cpu(struct cpuinfo_arm64 *info)
        info->reg_id_pfr0 = read_cpuid(ID_PFR0_EL1);
        info->reg_id_pfr1 = read_cpuid(ID_PFR1_EL1);
+        info->reg_mvfr0 = read_cpuid(MVFR0_EL1);
+        info->reg_mvfr1 = read_cpuid(MVFR1_EL1);
+        info->reg_mvfr2 = read_cpuid(MVFR2_EL1);
        cpuinfo_detect_icache_policy(info);
        check_local_cpu_errata();
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index 6fac253bc783..2bb4347d0edf 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -326,6 +326,7 @@ void __init efi_idmap_init(void)
        /* boot time idmap_pg_dir is incomplete, so fill in missing parts */
        efi_setup_idmap();
+        early_memunmap(memmap.map, memmap.map_end - memmap.map);
 }
 static int __init remap_region(efi_memory_desc_t *md, void **new)
@@ -380,7 +381,6 @@ static int __init arm64_enter_virtual_mode(void)
        }
        mapsize = memmap.map_end - memmap.map;
-        early_memunmap(memmap.map, mapsize);
        if (efi_runtime_disabled()) {
                pr_info("EFI runtime services will be disabled.\n");
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index fd027b101de5..9b6f71db2709 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -25,6 +25,7 @@
 #include <linux/mm.h>
 #include <linux/moduleloader.h>
 #include <linux/vmalloc.h>
+#include <asm/alternative.h>
 #include <asm/insn.h>
 #include <asm/sections.h>
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index 6762ad705587..3f62b35fb6f1 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -50,3 +50,11 @@ u64 perf_reg_abi(struct task_struct *task)
        else
                return PERF_SAMPLE_REGS_ABI_64;
 }
+void perf_get_regs_user(struct perf_regs *regs_user,
+                        struct pt_regs *regs,
+                        struct pt_regs *regs_user_copy)
+{
+        regs_user->regs = task_pt_regs(current);
+        regs_user->abi = perf_reg_abi(current);
+}
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b80991166754..20fe2932ad0c 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -402,6 +402,7 @@ void __init setup_arch(char **cmdline_p)
        request_standard_resources();
        efi_idmap_init();
+        early_ioremap_reset();
        unflatten_device_tree();
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 4f93c67e63de..14944e5b28da 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -25,6 +25,7 @@
 #include <asm/cacheflush.h>
 #include <asm/cpu_ops.h>
 #include <asm/cputype.h>
+#include <asm/io.h>
 #include <asm/smp_plat.h>
 extern void secondary_holding_pen(void);
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index fbe909fb0a1a..c3ca89c27c6b 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -1014,6 +1014,7 @@ ENTRY(__kvm_tlb_flush_vmid_ipa)
         * Instead, we invalidate Stage-2 for this IPA, and the
         * whole of Stage-1. Weep...
         */
+        lsr     x1, x1, #12
        tlbi    ipas2e1is, x1
        /*
         * We have to ensure completion of the invalidation at Stage-2,
diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c
index 70a7816535cd..0b4326578985 100644
--- a/arch/arm64/kvm/reset.c
+++ b/arch/arm64/kvm/reset.c
@@ -90,7 +90,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
                        if (!cpu_has_32bit_el1())
                                return -EINVAL;
                        cpu_reset = &default_regs_reset32;
-                        vcpu->arch.hcr_el2 &= ~HCR_RW;
                } else {
                        cpu_reset = &default_regs_reset;
                }
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
index cf33f33333cc..d54dc9ac4b70 100644
--- a/arch/arm64/mm/dump.c
+++ b/arch/arm64/mm/dump.c
@@ -15,6 +15,7 @@
 */
 #include <linux/debugfs.h>
 #include <linux/fs.h>
+#include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/seq_file.h>
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index bac492c12fcc..c95464a33f36 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -335,14 +335,8 @@ static int keep_initrd;
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-        if (!keep_initrd) {
+        if (!keep_initrd)
-                if (start == initrd_start)
-                        start = round_down(start, PAGE_SIZE);
-                if (end == initrd_end)
-                        end = round_up(end, PAGE_SIZE);
                free_reserved_area((void *)start, (void *)end, 0, "initrd");
-        }
 }
 static int __init keepinitrd_setup(char *__unused)
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
index 2c9412908024..164efa009e5b 100644
--- a/arch/avr32/kernel/module.c
+++ b/arch/avr32/kernel/module.c
@@ -19,12 +19,10 @@
 #include <linux/moduleloader.h>
 #include <linux/vmalloc.h>
-void module_free(struct module *mod, void *module_region)
+void module_arch_freeing_init(struct module *mod)
 {
        vfree(mod->arch.syminfo);
        mod->arch.syminfo = NULL;
-        vfree(module_region);
 }
 static inline int check_rela(Elf32_Rela *rela, struct module *module,
@@ -291,12 +289,3 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
        return ret;
 }
-int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
-                    struct module *module)
-{
-        vfree(module->arch.syminfo);
-        module->arch.syminfo = NULL;
-        return 0;
-}
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 6f4bac969bf7..23eada79439c 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -7,6 +7,7 @@
 */
 #include <linux/device.h>
+#include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index 08a313fc2241..f772068d9e79 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -604,7 +604,7 @@ static ssize_t __sync_serial_read(struct file *file,
                                  struct timespec *ts)
 {
        unsigned long flags;
-        int dev = MINOR(file->f_dentry->d_inode->i_rdev);
+        int dev = MINOR(file_inode(file)->i_rdev);
        int avail;
        struct sync_port *port;
        unsigned char *start;
diff --git a/arch/cris/kernel/module.c b/arch/cris/kernel/module.c
index 51123f985eb5..af04cb6b6dc9 100644
--- a/arch/cris/kernel/module.c
+++ b/arch/cris/kernel/module.c
@@ -36,7 +36,7 @@ void *module_alloc(unsigned long size)
 }
 /* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
+void module_memfree(void *module_region)
 {
        kfree(module_region);
 }
diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c
index 67b1d1685759..0635bd6c2af3 100644
--- a/arch/frv/mb93090-mb00/pci-frv.c
+++ b/arch/frv/mb93090-mb00/pci-frv.c
@@ -94,7 +94,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
                                r = &dev->resource[idx];
                                if (!r->start)
                                        continue;
-                                pci_claim_resource(dev, idx);
+                                pci_claim_bridge_resource(dev, idx);
                        }
                }
                pcibios_allocate_bus_resources(&bus->children);
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index f3b51b57740a..95c39b95e97e 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -11,7 +11,7 @@
-#define NR_syscalls                     318 /* length of syscall table */
+#define NR_syscalls                     319 /* length of syscall table */
 /*
 * The following defines stop scripts/checksyscalls.sh from complaining about
diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h
index 4c2240c1b0cb..461079560c78 100644
--- a/arch/ia64/include/uapi/asm/unistd.h
+++ b/arch/ia64/include/uapi/asm/unistd.h
@@ -331,5 +331,6 @@
 #define __NR_getrandom                  1339
 #define __NR_memfd_create               1340
 #define __NR_bpf                        1341
+#define __NR_execveat                   1342
 #endif /* _UAPI_ASM_IA64_UNISTD_H */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 615ef81def49..e795cb848154 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -893,13 +893,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 }
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
+int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu)
 {
        return _acpi_map_lsapic(handle, physid, pcpu);
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
+EXPORT_SYMBOL(acpi_map_cpu);
-int acpi_unmap_lsapic(int cpu)
+int acpi_unmap_cpu(int cpu)
 {
        ia64_cpu_to_sapicid[cpu] = -1;
        set_cpu_present(cpu, false);
@@ -910,8 +910,7 @@ int acpi_unmap_lsapic(int cpu)
        return (0);
 }
+EXPORT_SYMBOL(acpi_unmap_cpu);
-EXPORT_SYMBOL(acpi_unmap_lsapic);
 #endif                          /* CONFIG_ACPI_HOTPLUG_CPU */
 #ifdef CONFIG_ACPI_NUMA
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index f5e96dffc63c..fcf8b8cbca0b 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1779,6 +1779,7 @@ sys_call_table:
        data8 sys_getrandom
        data8 sys_memfd_create                  // 1340
        data8 sys_bpf
+        data8 sys_execveat
        .org sys_call_table + 8*NR_syscalls     // guard against failures to increase NR_syscalls
 #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index 24603be24c14..29754aae5177 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -305,14 +305,12 @@ plt_target (struct plt_entry *plt)
 #endif /* !USE_BRL */
 void
-module_free (struct module *mod, void *module_region)
+module_arch_freeing_init (struct module *mod)
 {
-        if (mod && mod->arch.init_unw_table &&
+        if (mod->arch.init_unw_table) {
-            module_region == mod->module_init) {
                unw_remove_unwind_table(mod->arch.init_unw_table);
                mod->arch.init_unw_table = NULL;
        }
-        vfree(module_region);
 }
 /* Have we already seen one of these relocations? */
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 291a582777cf..900cc93e5409 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -487,45 +487,39 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
        return 0;
 }
-static int is_valid_resource(struct pci_dev *dev, int idx)
+void pcibios_fixup_device_resources(struct pci_dev *dev)
 {
-        unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
+        int idx;
-        struct resource *devr = &dev->resource[idx], *busr;
        if (!dev->bus)
-                return 0;
+                return;
-        pci_bus_for_each_resource(dev->bus, busr, i) {
-                if (!busr || ((busr->flags ^ devr->flags) & type_mask))
-                        continue;
-                if ((devr->start) && (devr->start >= busr->start) &&
-                                (devr->end <= busr->end))
-                        return 1;
-        }
-        return 0;
-}
-static void pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
+        for (idx = 0; idx < PCI_BRIDGE_RESOURCES; idx++) {
-{
+                struct resource *r = &dev->resource[idx];
-        int i;
-        for (i = start; i < limit; i++) {
+                if (!r->flags || r->parent || !r->start)
-                if (!dev->resource[i].flags)
                        continue;
-                if ((is_valid_resource(dev, i)))
-                        pci_claim_resource(dev, i);
-        }
-}
-void pcibios_fixup_device_resources(struct pci_dev *dev)
+                pci_claim_resource(dev, idx);
-{
+        }
-        pcibios_fixup_resources(dev, 0, PCI_BRIDGE_RESOURCES);
 }
 EXPORT_SYMBOL_GPL(pcibios_fixup_device_resources);
 static void pcibios_fixup_bridge_resources(struct pci_dev *dev)
 {
-        pcibios_fixup_resources(dev, PCI_BRIDGE_RESOURCES, PCI_NUM_RESOURCES);
+        int idx;
+        if (!dev->bus)
+                return;
+        for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
+                struct resource *r = &dev->resource[idx];
+                if (!r->flags || r->parent || !r->start)
+                        continue;
+                pci_claim_bridge_resource(dev, idx);
+        }
 }
 /*
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 75e75d7b1702..244e0dbe45db 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -4,7 +4,7 @@
 #include <uapi/asm/unistd.h>
-#define NR_syscalls             355
+#define NR_syscalls             356
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
index 2c1bec9a14b6..61fb6cb9d2ae 100644
--- a/arch/m68k/include/uapi/asm/unistd.h
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -360,5 +360,6 @@
 #define __NR_getrandom          352
 #define __NR_memfd_create       353
 #define __NR_bpf                354
+#define __NR_execveat           355
 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 2ca219e184cd..a0ec4303f2c8 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -375,4 +375,5 @@ ENTRY(sys_call_table)
        .long sys_getrandom
        .long sys_memfd_create
        .long sys_bpf
+        .long sys_execveat              /* 355 */
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index b30e41c0c033..48528fb81eff 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1026,6 +1026,8 @@ static void pcibios_allocate_bus_resources(struct pci_bus *bus)
                         pr, (pr && pr->name) ? pr->name : "nil");
                if (pr && !(pr->flags & IORESOURCE_UNSET)) {
+                        struct pci_dev *dev = bus->self;
                        if (request_resource(pr, res) == 0)
                                continue;
                        /*
@@ -1035,6 +1037,12 @@ static void pcibios_allocate_bus_resources(struct pci_bus *bus)
                         */
                        if (reparent_resources(pr, res) == 0)
                                continue;
+                        if (dev && i < PCI_BRIDGE_RESOURCE_NUM &&
+                            pci_claim_bridge_resource(dev,
+                                                 i + PCI_BRIDGE_RESOURCES) == 0)
+                                continue;
                }
                pr_warn("PCI: Cannot allocate resource region ");
                pr_cont("%d of PCI bridge %d, will remap\n", i, bus->number);
@@ -1227,7 +1235,10 @@ void pcibios_claim_one_bus(struct pci_bus *bus)
                                 (unsigned long long)r->end,
                                 (unsigned int)r->flags);
-                        pci_claim_resource(dev, i);
+                        if (pci_claim_resource(dev, i) == 0)
+                                continue;
+                        pci_claim_bridge_resource(dev, i);
                }
        }
diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c
index 9fd6834a2172..5d6139390bf8 100644
--- a/arch/mips/net/bpf_jit.c
+++ b/arch/mips/net/bpf_jit.c
@@ -1388,7 +1388,7 @@ out:
 void bpf_jit_free(struct bpf_prog *fp)
 {
        if (fp->jited)
-                module_free(NULL, fp->bpf_func);
+                module_memfree(fp->bpf_func);
        bpf_prog_unlock_free(fp);
 }
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c
index febb9cd83177..b5b036f64275 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.c
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.c
@@ -106,7 +106,7 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
                                if (!r->flags)
                                        continue;
                                if (!r->start ||
-                                    pci_claim_resource(dev, idx) < 0) {
+                                    pci_claim_bridge_resource(dev, idx) < 0) {
                                        printk(KERN_ERR "PCI:"
                                               " Cannot allocate resource"
                                               " region %d of bridge %s\n",
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index 6b4339f8c9c2..471ff398090c 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -281,42 +281,37 @@ static int __init pci_check_direct(void)
        return -ENODEV;
 }
-static int is_valid_resource(struct pci_dev *dev, int idx)
+static void pcibios_fixup_device_resources(struct pci_dev *dev)
 {
-        unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
+        int idx;
-        struct resource *devr = &dev->resource[idx], *busr;
-        if (dev->bus) {
-                pci_bus_for_each_resource(dev->bus, busr, i) {
-                        if (!busr || (busr->flags ^ devr->flags) & type_mask)
-                                continue;
-                        if (devr->start &&
-                            devr->start >= busr->start &&
-                            devr->end <= busr->end)
-                                return 1;
-                }
-        }
-        return 0;
+        if (!dev->bus)
+                return;
+        for (idx = 0; idx < PCI_BRIDGE_RESOURCES; idx++) {
+                struct resource *r = &dev->resource[idx];
+                if (!r->flags || r->parent || !r->start)
+                        continue;
+                pci_claim_resource(dev, idx);
+        }
 }
-static void pcibios_fixup_device_resources(struct pci_dev *dev)
+static void pcibios_fixup_bridge_resources(struct pci_dev *dev)
 {
-        int limit, i;
+        int idx;
-        if (dev->bus->number != 0)
+        if (!dev->bus)
                return;
-        limit = (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) ?
+        for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
-                PCI_BRIDGE_RESOURCES : PCI_NUM_RESOURCES;
+                struct resource *r = &dev->resource[idx];
-        for (i = 0; i < limit; i++) {
+                if (!r->flags || r->parent || !r->start)
-                if (!dev->resource[i].flags)
                        continue;
-                if (is_valid_resource(dev, i))
+                pci_claim_bridge_resource(dev, idx);
-                        pci_claim_resource(dev, i);
        }
 }
@@ -330,7 +325,7 @@ void pcibios_fixup_bus(struct pci_bus *bus)
        if (bus->self) {
                pci_read_bridge_bases(bus);
-                pcibios_fixup_device_resources(bus->self);
+                pcibios_fixup_bridge_resources(bus->self);
        }
        list_for_each_entry(dev, &bus->devices, bus_list)
diff --git a/arch/nios2/kernel/cpuinfo.c b/arch/nios2/kernel/cpuinfo.c
index 51d5bb90d3e5..a223691dff4f 100644
--- a/arch/nios2/kernel/cpuinfo.c
+++ b/arch/nios2/kernel/cpuinfo.c
@@ -72,6 +72,7 @@ void __init setup_cpuinfo(void)
        cpuinfo.has_div = fcpu_has(cpu, "altr,has-div");
        cpuinfo.has_mul = fcpu_has(cpu, "altr,has-mul");
        cpuinfo.has_mulx = fcpu_has(cpu, "altr,has-mulx");
+        cpuinfo.mmu = fcpu_has(cpu, "altr,has-mmu");
        if (IS_ENABLED(CONFIG_NIOS2_HW_DIV_SUPPORT) && !cpuinfo.has_div)
                err_cpu("DIV");
diff --git a/arch/nios2/kernel/entry.S b/arch/nios2/kernel/entry.S
index 83bca17d1008..0bdfd13ff98b 100644
--- a/arch/nios2/kernel/entry.S
+++ b/arch/nios2/kernel/entry.S
@@ -365,30 +365,14 @@ ENTRY(ret_from_interrupt)
        GET_THREAD_INFO r1
        ldw     r4, TI_PREEMPT_COUNT(r1)
        bne     r4, r0, restore_all
-need_resched:
        ldw     r4, TI_FLAGS(r1)                /* ? Need resched set */
        BTBZ    r10, r4, TIF_NEED_RESCHED, restore_all
        ldw     r4, PT_ESTATUS(sp)      /* ? Interrupts off */
        andi    r10, r4, ESTATUS_EPIE
        beq     r10, r0, restore_all
-        movia   r4, PREEMPT_ACTIVE
+        call    preempt_schedule_irq
-        stw     r4, TI_PREEMPT_COUNT(r1)
-        rdctl   r10, status             /* enable intrs again */
-        ori     r10, r10 ,STATUS_PIE
-        wrctl   status, r10
-        PUSH    r1
-        call    schedule
-        POP     r1
-        mov     r4, r0
-        stw     r4, TI_PREEMPT_COUNT(r1)
-        rdctl   r10, status             /* disable intrs */
-        andi    r10, r10, %lo(~STATUS_PIE)
-        wrctl   status, r10
-        br      need_resched
-#else
-        br      restore_all
 #endif
+        br      restore_all
 /***********************************************************************
 * A few syscall wrappers
diff --git a/arch/nios2/kernel/module.c b/arch/nios2/kernel/module.c
index cc924a38f22a..e2e3f13f98d5 100644
--- a/arch/nios2/kernel/module.c
+++ b/arch/nios2/kernel/module.c
@@ -36,7 +36,7 @@ void *module_alloc(unsigned long size)
 }
 /* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
+void module_memfree(void *module_region)
 {
        kfree(module_region);
 }
diff --git a/arch/nios2/kernel/signal.c b/arch/nios2/kernel/signal.c
index f9d27883a714..2d0ea25be171 100644
--- a/arch/nios2/kernel/signal.c
+++ b/arch/nios2/kernel/signal.c
@@ -200,7 +200,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
        /* Set up to return from userspace; jump to fixed address sigreturn
           trampoline on kuser page.  */
-        regs->ra = (unsigned long) (0x1040);
+        regs->ra = (unsigned long) (0x1044);
        /* Set up registers for signal handler */
        regs->sp = (unsigned long) frame;
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 50dfafc3f2c1..5822e8e200e6 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -298,14 +298,10 @@ static inline unsigned long count_stubs(const Elf_Rela *rela, unsigned long n)
 }
 #endif
+void module_arch_freeing_init(struct module *mod)
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
 {
        kfree(mod->arch.section);
        mod->arch.section = NULL;
-        vfree(module_region);
 }
 /* Additional bytes needed in front of individual sections */
diff --git a/arch/powerpc/crypto/sha1.c b/arch/powerpc/crypto/sha1.c
index d3feba5a275f..c154cebc1041 100644
--- a/arch/powerpc/crypto/sha1.c
+++ b/arch/powerpc/crypto/sha1.c
@@ -154,4 +154,5 @@ module_exit(sha1_powerpc_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm");
+MODULE_ALIAS_CRYPTO("sha1");
 MODULE_ALIAS_CRYPTO("sha1-powerpc");
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 19c36cba37c4..a46f5f45570c 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -86,6 +86,11 @@ extern int overlaps_crashkernel(unsigned long start, unsigned long size);
 extern void reserve_crashkernel(void);
 extern void machine_kexec_mask_interrupts(void);
+static inline bool kdump_in_progress(void)
+{
+        return crashing_cpu >= 0;
+}
 #else /* !CONFIG_KEXEC */
 static inline void crash_kexec_secondary(struct pt_regs *regs) { }
@@ -106,6 +111,11 @@ static inline int crash_shutdown_unregister(crash_shutdown_t handler)
        return 0;
 }
+static inline bool kdump_in_progress(void)
+{
+        return false;
+}
 #endif /* CONFIG_KEXEC */
 #endif /* ! __ASSEMBLY__ */
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index ce9577d693be..91062eef582f 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -366,3 +366,4 @@ SYSCALL_SPU(seccomp)
 SYSCALL_SPU(getrandom)
 SYSCALL_SPU(memfd_create)
 SYSCALL_SPU(bpf)
+COMPAT_SYS(execveat)
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index ebc4f165690a..0be6c681cab1 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -23,9 +23,9 @@
 #define THREAD_SIZE             (1 << THREAD_SHIFT)
 #ifdef CONFIG_PPC64
-#define CURRENT_THREAD_INFO(dest, sp)   clrrdi dest, sp, THREAD_SHIFT
+#define CURRENT_THREAD_INFO(dest, sp)   stringify_in_c(clrrdi dest, sp, THREAD_SHIFT)
 #else
-#define CURRENT_THREAD_INFO(dest, sp)   rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT
+#define CURRENT_THREAD_INFO(dest, sp)   stringify_in_c(rlwinm dest, sp, 0, 0, 31-THREAD_SHIFT)
 #endif
 #ifndef __ASSEMBLY__
@@ -71,12 +71,13 @@ struct thread_info {
 #define THREAD_SIZE_ORDER       (THREAD_SHIFT - PAGE_SHIFT)
 /* how to get the thread information struct from C */
-register unsigned long __current_r1 asm("r1");
 static inline struct thread_info *current_thread_info(void)
 {
-        /* gcc4, at least, is smart enough to turn this into a single
+        unsigned long val;
-         * rlwinm for ppc32 and clrrdi for ppc64 */
-        return (struct thread_info *)(__current_r1 & ~(THREAD_SIZE-1));
+        asm (CURRENT_THREAD_INFO(%0,1) : "=r" (val));
+        return (struct thread_info *)val;
 }
 #endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index e0da021caa00..36b79c31eedd 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,7 +12,7 @@
 #include <uapi/asm/unistd.h>
-#define __NR_syscalls           362
+#define __NR_syscalls           363
 #define __NR__exit __NR_exit
 #define NR_syscalls     __NR_syscalls
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index f55351f2e66e..ef5b5b1f3123 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -384,5 +384,6 @@
 #define __NR_getrandom          359
 #define __NR_memfd_create       360
 #define __NR_bpf                361
+#define __NR_execveat           362
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 879b3aacac32..f96d1ec24189 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -330,7 +330,7 @@ void default_machine_kexec(struct kimage *image)
        * using debugger IPI.
        */
-        if (crashing_cpu == -1)
+        if (!kdump_in_progress())
                kexec_prepare_cpus();
        pr_debug("kexec: Starting switchover sequence.\n");
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 37d512d35943..2a525c938158 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1184,6 +1184,8 @@ static void pcibios_allocate_bus_resources(struct pci_bus *bus)
                         pr, (pr && pr->name) ? pr->name : "nil");
                if (pr && !(pr->flags & IORESOURCE_UNSET)) {
+                        struct pci_dev *dev = bus->self;
                        if (request_resource(pr, res) == 0)
                                continue;
                        /*
@@ -1193,6 +1195,11 @@ static void pcibios_allocate_bus_resources(struct pci_bus *bus)
                         */
                        if (reparent_resources(pr, res) == 0)
                                continue;
+                        if (dev && i < PCI_BRIDGE_RESOURCE_NUM &&
+                            pci_claim_bridge_resource(dev,
+                                                i + PCI_BRIDGE_RESOURCES) == 0)
+                                continue;
                }
                pr_warning("PCI: Cannot allocate resource region "
                           "%d of PCI bridge %d, will remap\n", i, bus->number);
@@ -1401,7 +1408,10 @@ void pcibios_claim_one_bus(struct pci_bus *bus)
                                 (unsigned long long)r->end,
                                 (unsigned int)r->flags);
-                        pci_claim_resource(dev, i);
+                        if (pci_claim_resource(dev, i) == 0)
+                                continue;
+                        pci_claim_bridge_resource(dev, i);
                }
        }
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 8ec017cb4446..8b2d2dc8ef10 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -700,6 +700,7 @@ void start_secondary(void *unused)
        smp_store_cpu_info(cpu);
        set_dec(tb_ticks_per_jiffy);
        preempt_disable();
+        cpu_callin_map[cpu] = 1;
        if (smp_ops->setup_cpu)
                smp_ops->setup_cpu(cpu);
@@ -738,14 +739,6 @@ void start_secondary(void *unused)
        notify_cpu_starting(cpu);
        set_cpu_online(cpu, true);
-        /*
-         * CPU must be marked active and online before we signal back to the
-         * master, because the scheduler needs to see the cpu_online and
-         * cpu_active bits set.
-         */
-        smp_wmb();
-        cpu_callin_map[cpu] = 1;
        local_irq_enable();
        cpu_startup_entry(CPUHP_ONLINE);
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 1ca125b9c226..d1916b577f2c 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -699,7 +699,7 @@ out:
 void bpf_jit_free(struct bpf_prog *fp)
 {
        if (fp->jited)
-                module_free(NULL, fp->bpf_func);
+                module_memfree(fp->bpf_func);
        bpf_prog_unlock_free(fp);
 }
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 54eca8b3b288..0509bca5e830 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -40,7 +40,6 @@ BEGIN_FTR_SECTION;						\
        b       1f;                                             \
 END_FTR_SECTION(0, 1);                                          \
        ld      r12,opal_tracepoint_refcount@toc(r2);           \
-        std     r12,32(r1);                                     \
        cmpdi   r12,0;                                          \
        bne-    LABEL;                                          \
 1:
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 469751d92004..b5682fd6c984 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -43,6 +43,7 @@
 #include <asm/trace.h>
 #include <asm/firmware.h>
 #include <asm/plpar_wrappers.h>
+#include <asm/kexec.h>
 #include <asm/fadump.h>
 #include "pseries.h"
@@ -267,8 +268,13 @@ static void pSeries_lpar_hptab_clear(void)
                 * out to the user, but at least this will stop us from
                 * continuing on further and creating an even more
                 * difficult to debug situation.
+                 *
+                 * There is a known problem when kdump'ing, if cpus are offline
+                 * the above call will fail. Rather than panicking again, keep
+                 * going and hope the kdump kernel is also little endian, which
+                 * it usually is.
                 */
-                if (rc)
+                if (rc && !kdump_in_progress())
                        panic("Could not enable big endian exceptions");
        }
 #endif
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 32040ace00ea..afbe07907c10 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -231,7 +231,7 @@ failed:
 struct dbfs_d2fc_hdr {
        u64     len;            /* Length of d2fc buffer without header */
        u16     version;        /* Version of header */
-        char    tod_ext[16];    /* TOD clock for d2fc */
+        char    tod_ext[STORE_CLOCK_EXT_SIZE]; /* TOD clock for d2fc */
        u64     count;          /* Number of VM guests in d2fc buffer */
        char    reserved[30];
 } __attribute__ ((packed));
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 37b9091ab8c0..16aa0c779e07 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -36,7 +36,7 @@ static inline notrace void __arch_local_irq_ssm(unsigned long flags)
 static inline notrace unsigned long arch_local_save_flags(void)
 {
-        return __arch_local_irq_stosm(0x00);
+        return __arch_local_irq_stnsm(0xff);
 }
 static inline notrace unsigned long arch_local_irq_save(void)
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 8beee1cceba4..98eb2a579223 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -67,20 +67,22 @@ static inline void local_tick_enable(unsigned long long comp)
        set_clock_comparator(S390_lowcore.clock_comparator);
 }
-#define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+#define CLOCK_TICK_RATE         1193180 /* Underlying HZ */
+#define STORE_CLOCK_EXT_SIZE    16      /* stcke writes 16 bytes */
 typedef unsigned long long cycles_t;
-static inline void get_tod_clock_ext(char clk[16])
+static inline void get_tod_clock_ext(char *clk)
 {
-        typedef struct { char _[sizeof(clk)]; } addrtype;
+        typedef struct { char _[STORE_CLOCK_EXT_SIZE]; } addrtype;
        asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc");
 }
 static inline unsigned long long get_tod_clock(void)
 {
-        unsigned char clk[16];
+        unsigned char clk[STORE_CLOCK_EXT_SIZE];
        get_tod_clock_ext(clk);
        return *((unsigned long long *)&clk[1]);
 }
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 2b446cf0cc65..67878af257a0 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -289,7 +289,8 @@
 #define __NR_bpf                351
 #define __NR_s390_pci_mmio_write        352
 #define __NR_s390_pci_mmio_read         353
-#define NR_syscalls 354
+#define __NR_execveat           354
+#define NR_syscalls 355
 /* 
 * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index b89b59158b95..409d152585be 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -55,14 +55,10 @@ void *module_alloc(unsigned long size)
 }
 #endif
-/* Free memory returned from module_alloc */
+void module_arch_freeing_init(struct module *mod)
-void module_free(struct module *mod, void *module_region)
 {
-        if (mod) {
+        vfree(mod->arch.syminfo);
-                vfree(mod->arch.syminfo);
+        mod->arch.syminfo = NULL;
-                mod->arch.syminfo = NULL;
-        }
-        vfree(module_region);
 }
 static void check_rela(Elf_Rela *rela, struct module *me)
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a2987243bc76..939ec474b1dd 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -362,3 +362,4 @@ SYSCALL(sys_memfd_create,sys_memfd_create,compat_sys_memfd_create) /* 350 */
 SYSCALL(sys_bpf,sys_bpf,compat_sys_bpf)
 SYSCALL(sys_ni_syscall,sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
 SYSCALL(sys_ni_syscall,sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
+SYSCALL(sys_execveat,sys_execveat,compat_sys_execveat)
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index f6b3cd056ec2..cc7328080b60 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -48,6 +48,30 @@ bool arch_uprobe_xol_was_trapped(struct task_struct *tsk)
        return false;
 }
+static int check_per_event(unsigned short cause, unsigned long control,
+                           struct pt_regs *regs)
+{
+        if (!(regs->psw.mask & PSW_MASK_PER))
+                return 0;
+        /* user space single step */
+        if (control == 0)
+                return 1;
+        /* over indication for storage alteration */
+        if ((control & 0x20200000) && (cause & 0x2000))
+                return 1;
+        if (cause & 0x8000) {
+                /* all branches */
+                if ((control & 0x80800000) == 0x80000000)
+                        return 1;
+                /* branch into selected range */
+                if (((control & 0x80800000) == 0x80800000) &&
+                    regs->psw.addr >= current->thread.per_user.start &&
+                    regs->psw.addr <= current->thread.per_user.end)
+                        return 1;
+        }
+        return 0;
+}
 int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
 {
        int fixup = probe_get_fixup_type(auprobe->insn);
@@ -71,9 +95,13 @@ int arch_uprobe_post_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
                if (regs->psw.addr - utask->xol_vaddr == ilen)
                        regs->psw.addr = utask->vaddr + ilen;
        }
-        /* If per tracing was active generate trap */
+        if (check_per_event(current->thread.per_event.cause,
-        if (regs->psw.mask & PSW_MASK_PER)
+                            current->thread.per_user.control, regs)) {
-                do_per_trap(regs);
+                /* fix per address */
+                current->thread.per_event.address = utask->vaddr;
+                /* trigger per event */
+                set_pt_regs_flag(regs, PIF_PER_TRAP);
+        }
        return 0;
 }
@@ -106,6 +134,7 @@ void arch_uprobe_abort_xol(struct arch_uprobe *auprobe, struct pt_regs *regs)
        clear_thread_flag(TIF_UPROBE_SINGLESTEP);
        regs->int_code = auprobe->saved_int_code;
        regs->psw.addr = current->utask->vaddr;
+        current->thread.per_event.address = current->utask->vaddr;
 }
 unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline,
@@ -146,17 +175,20 @@ static void adjust_psw_addr(psw_t *psw, unsigned long len)
        __rc;                                           \
 })
-#define emu_store_ril(ptr, input)                       \
+#define emu_store_ril(regs, ptr, input)                 \
 ({                                                      \
        unsigned int mask = sizeof(*(ptr)) - 1;         \
+        __typeof__(ptr) __ptr = (ptr);                  \
        int __rc = 0;                                   \
                                                        \
        if (!test_facility(34))                         \
                __rc = EMU_ILLEGAL_OP;                  \
-        else if ((u64 __force)ptr & mask)               \
+        else if ((u64 __force)__ptr & mask)             \
                __rc = EMU_SPECIFICATION;               \
-        else if (put_user(*(input), ptr))               \
+        else if (put_user(*(input), __ptr))             \
                __rc = EMU_ADDRESSING;                  \
+        if (__rc == 0)                                  \
+                sim_stor_event(regs, __ptr, mask + 1);  \
        __rc;                                           \
 })
@@ -198,6 +230,25 @@ union split_register {
 };
 /*
+ * If user per registers are setup to trace storage alterations and an
+ * emulated store took place on a fitting address a user trap is generated.
+ */
+static void sim_stor_event(struct pt_regs *regs, void *addr, int len)
+{
+        if (!(regs->psw.mask & PSW_MASK_PER))
+                return;
+        if (!(current->thread.per_user.control & PER_EVENT_STORE))
+                return;
+        if ((void *)current->thread.per_user.start > (addr + len))
+                return;
+        if ((void *)current->thread.per_user.end < addr)
+                return;
+        current->thread.per_event.address = regs->psw.addr;
+        current->thread.per_event.cause = PER_EVENT_STORE >> 16;
+        set_pt_regs_flag(regs, PIF_PER_TRAP);
+}
+/*
 * pc relative instructions are emulated, since parameters may not be
 * accessible from the xol area due to range limitations.
 */
@@ -249,13 +300,13 @@ static void handle_insn_ril(struct arch_uprobe *auprobe, struct pt_regs *regs)
                        rc = emu_load_ril((u32 __user *)uptr, &rx->u64);
                        break;
                case 0x07: /* sthrl */
-                        rc = emu_store_ril((u16 __user *)uptr, &rx->u16[3]);
+                        rc = emu_store_ril(regs, (u16 __user *)uptr, &rx->u16[3]);
                        break;
                case 0x0b: /* stgrl */
-                        rc = emu_store_ril((u64 __user *)uptr, &rx->u64);
+                        rc = emu_store_ril(regs, (u64 __user *)uptr, &rx->u64);
                        break;
                case 0x0f: /* strl */
-                        rc = emu_store_ril((u32 __user *)uptr, &rx->u32[1]);
+                        rc = emu_store_ril(regs, (u32 __user *)uptr, &rx->u32[1]);
                        break;
                }
                break;
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 7f0089d9a4aa..e34122e539a1 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -128,8 +128,6 @@ void vtime_account_irq_enter(struct task_struct *tsk)
        struct thread_info *ti = task_thread_info(tsk);
        u64 timer, system;
-        WARN_ON_ONCE(!irqs_disabled());
        timer = S390_lowcore.last_update_timer;
        S390_lowcore.last_update_timer = get_vtimer();
        S390_lowcore.system_timer += timer - S390_lowcore.last_update_timer;
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index be99357d238c..3cf8cc03fff6 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -322,11 +322,12 @@ static int gmap_alloc_table(struct gmap *gmap, unsigned long *table,
 static unsigned long __gmap_segment_gaddr(unsigned long *entry)
 {
        struct page *page;
-        unsigned long offset;
+        unsigned long offset, mask;
        offset = (unsigned long) entry / sizeof(unsigned long);
        offset = (offset & (PTRS_PER_PMD - 1)) * PMD_SIZE;
-        page = pmd_to_page((pmd_t *) entry);
+        mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1);
+        page = virt_to_page((void *)((unsigned long) entry & mask));
        return page->index + offset;
 }
diff --git a/arch/s390/net/bpf_jit.S b/arch/s390/net/bpf_jit.S
index 7e45d13816c1..ba44c9f55346 100644
--- a/arch/s390/net/bpf_jit.S
+++ b/arch/s390/net/bpf_jit.S
@@ -22,8 +22,8 @@
 * skb_copy_bits takes 4 parameters:
 *   %r2 = skb pointer
 *   %r3 = offset into skb data
- *   %r4 = length to copy
+ *   %r4 = pointer to temp buffer
- *   %r5 = pointer to temp buffer
+ *   %r5 = length to copy
 */
 #define SKBDATA %r8
@@ -44,8 +44,9 @@ ENTRY(sk_load_word)
 sk_load_word_slow:
        lgr     %r9,%r2                 # save %r2
-        lhi     %r4,4                   # 4 bytes
+        lgr     %r3,%r1                 # offset
-        la      %r5,160(%r15)           # pointer to temp buffer
+        la      %r4,160(%r15)           # pointer to temp buffer
+        lghi    %r5,4                   # 4 bytes
        brasl   %r14,skb_copy_bits      # get data from skb
        l       %r5,160(%r15)           # load result from temp buffer
        ltgr    %r2,%r2                 # set cc to (%r2 != 0)
@@ -69,8 +70,9 @@ ENTRY(sk_load_half)
 sk_load_half_slow:
        lgr     %r9,%r2                 # save %r2
-        lhi     %r4,2                   # 2 bytes
+        lgr     %r3,%r1                 # offset
-        la      %r5,162(%r15)           # pointer to temp buffer
+        la      %r4,162(%r15)           # pointer to temp buffer
+        lghi    %r5,2                   # 2 bytes
        brasl   %r14,skb_copy_bits      # get data from skb
        xc      160(2,%r15),160(%r15)
        l       %r5,160(%r15)           # load result from temp buffer
@@ -95,8 +97,9 @@ ENTRY(sk_load_byte)
 sk_load_byte_slow:
        lgr     %r9,%r2                 # save %r2
-        lhi     %r4,1                   # 1 bytes
+        lgr     %r3,%r1                 # offset
-        la      %r5,163(%r15)           # pointer to temp buffer
+        la      %r4,163(%r15)           # pointer to temp buffer
+        lghi    %r5,1                   # 1 byte
        brasl   %r14,skb_copy_bits      # get data from skb
        xc      160(3,%r15),160(%r15)
        l       %r5,160(%r15)           # load result from temp buffer
@@ -104,11 +107,11 @@ sk_load_byte_slow:
        lgr     %r2,%r9                 # restore %r2
        br      %r8
-        /* A = (*(u8 *)(skb->data+K) & 0xf) << 2 */
+        /* X = (*(u8 *)(skb->data+K) & 0xf) << 2 */
 ENTRY(sk_load_byte_msh)
        llgfr   %r1,%r3                 # extend offset
        clr     %r11,%r3                # hlen < offset ?
-        jle     sk_load_byte_slow
+        jle     sk_load_byte_msh_slow
        lhi     %r12,0
        ic      %r12,0(%r1,%r10)        # get byte from skb
        nill    %r12,0x0f
@@ -118,8 +121,9 @@ ENTRY(sk_load_byte_msh)
 sk_load_byte_msh_slow:
        lgr     %r9,%r2                 # save %r2
-        lhi     %r4,2                   # 2 bytes
+        lgr     %r3,%r1                 # offset
-        la      %r5,162(%r15)           # pointer to temp buffer
+        la      %r4,163(%r15)           # pointer to temp buffer
+        lghi    %r5,1                   # 1 byte
        brasl   %r14,skb_copy_bits      # get data from skb
        xc      160(3,%r15),160(%r15)
        l       %r12,160(%r15)          # load result from temp buffer
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index c52ac77408ca..bbd1981cc150 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -431,8 +431,8 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter,
                EMIT4_DISP(0x88500000, K);
                break;
        case BPF_ALU | BPF_NEG: /* A = -A */
-                /* lnr %r5,%r5 */
+                /* lcr %r5,%r5 */
-                EMIT2(0x1155);
+                EMIT2(0x1355);
                break;
        case BPF_JMP | BPF_JA: /* ip += K */
                offset = addrs[i + K] + jit->start - jit->prg;
@@ -448,15 +448,12 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter,
                mask = 0x800000; /* je */
 kbranch:        /* Emit compare if the branch targets are different */
                if (filter->jt != filter->jf) {
-                        if (K <= 16383)
+                        if (test_facility(21))
-                                /* chi %r5,<K> */
-                                EMIT4_IMM(0xa75e0000, K);
-                        else if (test_facility(21))
                                /* clfi %r5,<K> */
                                EMIT6_IMM(0xc25f0000, K);
                        else
-                                /* c %r5,<d(K)>(%r13) */
+                                /* cl %r5,<d(K)>(%r13) */
-                                EMIT4_DISP(0x5950d000, EMIT_CONST(K));
+                                EMIT4_DISP(0x5550d000, EMIT_CONST(K));
                }
 branch:         if (filter->jt == filter->jf) {
                        if (filter->jt == 0)
@@ -502,8 +499,8 @@ branch:		if (filter->jt == filter->jf) {
 xbranch:        /* Emit compare if the branch targets are different */
                if (filter->jt != filter->jf) {
                        jit->seen |= SEEN_XREG;
-                        /* cr %r5,%r12 */
+                        /* clr %r5,%r12 */
-                        EMIT2(0x195c);
+                        EMIT2(0x155c);
                }
                goto branch;
        case BPF_JMP | BPF_JSET | BPF_X: /* ip += (A & X) ? jt : jf */
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index b36365f49478..9ce5afe167ff 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -639,7 +639,10 @@ static void pci_claim_bus_resources(struct pci_bus *bus)
                                       (unsigned long long)r->end,
                                       (unsigned int)r->flags);
-                        pci_claim_resource(dev, i);
+                        if (pci_claim_resource(dev, i) == 0)
+                                continue;
+                        pci_claim_bridge_resource(dev, i);
                }
        }
diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c
index f33e7c7a3bf7..7931eeeb649a 100644
--- a/arch/sparc/net/bpf_jit_comp.c
+++ b/arch/sparc/net/bpf_jit_comp.c
@@ -776,7 +776,7 @@ cond_branch:			f_offset = addrs[i + filter[i].jf];
                                if (unlikely(proglen + ilen > oldproglen)) {
                                        pr_err("bpb_jit_compile fatal error\n");
                                        kfree(addrs);
-                                        module_free(NULL, image);
+                                        module_memfree(image);
                                        return;
                                }
                                memcpy(image + proglen, temp, ilen);
@@ -822,7 +822,7 @@ out:
 void bpf_jit_free(struct bpf_prog *fp)
 {
        if (fp->jited)
-                module_free(NULL, fp->bpf_func);
+                module_memfree(fp->bpf_func);
        bpf_prog_unlock_free(fp);
 }
diff --git a/arch/tile/kernel/module.c b/arch/tile/kernel/module.c
index 96447c9160a0..2305084c9b93 100644
--- a/arch/tile/kernel/module.c
+++ b/arch/tile/kernel/module.c
@@ -74,7 +74,7 @@ error:
 /* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
+void module_memfree(void *module_region)
 {
        vfree(module_region);
@@ -83,7 +83,7 @@ void module_free(struct module *mod, void *module_region)
                     0, 0, 0, NULL, NULL, 0);
        /*
-         * FIXME: If module_region == mod->module_init, trim exception
+         * FIXME: Add module_arch_freeing_init to trim exception
         * table entries.
         */
 }
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 87bc86821bc9..d195a87ca542 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -3,6 +3,7 @@ config UML
        default y
        select HAVE_ARCH_AUDITSYSCALL
        select HAVE_UID16
+        select HAVE_FUTEX_CMPXCHG if FUTEX
        select GENERIC_IRQ_SHOW
        select GENERIC_CPU_DEVICES
        select GENERIC_IO
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ba397bde7948..0dc9d0144a27 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -857,7 +857,7 @@ source "kernel/Kconfig.preempt"
 config X86_UP_APIC
        bool "Local APIC support on uniprocessors"
-        depends on X86_32 && !SMP && !X86_32_NON_STANDARD && !PCI_MSI
+        depends on X86_32 && !SMP && !X86_32_NON_STANDARD
        ---help---
          A local APIC (Advanced Programmable Interrupt Controller) is an
          integrated interrupt controller in the CPU. If you have a single-CPU
@@ -868,6 +868,10 @@ config X86_UP_APIC
          performance counters), and the NMI watchdog which detects hard
          lockups.
+config X86_UP_APIC_MSI
+        def_bool y
+        select X86_UP_APIC if X86_32 && !SMP && !X86_32_NON_STANDARD && PCI_MSI
 config X86_UP_IOAPIC
        bool "IO-APIC support on uniprocessors"
        depends on X86_UP_APIC
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 5b016e2498f3..3db07f30636f 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -51,6 +51,7 @@ targets += cpustr.h
 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
        $(call if_changed,cpustr)
 endif
+clean-files += cpustr.h
 # ---------------------------------------------------------------------------
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index dcc1c536cc21..a950864a64da 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -373,6 +373,8 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
                                  unsigned long output_len,
                                  unsigned long run_size)
 {
+        unsigned char *output_orig = output;
        real_mode = rmode;
        sanitize_boot_params(real_mode);
@@ -421,7 +423,12 @@ asmlinkage __visible void *decompress_kernel(void *rmode, memptr heap,
        debug_putstr("\nDecompressing Linux... ");
        decompress(input_data, input_len, NULL, NULL, output, NULL, error);
        parse_elf(output);
-        handle_relocations(output, output_len);
+        /*
+         * 32-bit always performs relocations. 64-bit relocations are only
+         * needed if kASLR has chosen a different load address.
+         */
+        if (!IS_ENABLED(CONFIG_X86_64) || output != output_orig)
+                handle_relocations(output, output_len);
        debug_putstr("done.\nBooting the kernel.\n");
        return output;
 }
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index fd0f848938cc..5a4a089e8b1f 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
 obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
 obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
-obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/
 obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o
 obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o
 obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o
@@ -46,6 +45,7 @@ endif
 ifeq ($(avx2_supported),yes)
        obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
        obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
+        obj-$(CONFIG_CRYPTO_SHA1_MB) += sha-mb/
 endif
 aes-i586-y := aes-i586-asm_32.o aes_glue.o
diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
index 2df2a0298f5a..a916c4a61165 100644
--- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
+++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
@@ -208,7 +208,7 @@ ddq_add_8:
        .if (klen == KEY_128)
                .if (load_keys)
-                        vmovdqa 3*16(p_keys), xkeyA
+                        vmovdqa 3*16(p_keys), xkey4
                .endif
        .else
                vmovdqa 3*16(p_keys), xkeyA
@@ -224,7 +224,7 @@ ddq_add_8:
        add     $(16*by), p_in
        .if (klen == KEY_128)
-                vmovdqa 4*16(p_keys), xkey4
+                vmovdqa 4*16(p_keys), xkeyB
        .else
                .if (load_keys)
                        vmovdqa 4*16(p_keys), xkey4
@@ -234,7 +234,12 @@ ddq_add_8:
        .set i, 0
        .rept by
                club XDATA, i
-                vaesenc xkeyA, var_xdata, var_xdata             /* key 3 */
+                /* key 3 */
+                .if (klen == KEY_128)
+                        vaesenc xkey4, var_xdata, var_xdata
+                .else
+                        vaesenc xkeyA, var_xdata, var_xdata
+                .endif
                .set i, (i +1)
        .endr
@@ -243,13 +248,18 @@ ddq_add_8:
        .set i, 0
        .rept by
                club XDATA, i
-                vaesenc xkey4, var_xdata, var_xdata             /* key 4 */
+                /* key 4 */
+                .if (klen == KEY_128)
+                        vaesenc xkeyB, var_xdata, var_xdata
+                .else
+                        vaesenc xkey4, var_xdata, var_xdata
+                .endif
                .set i, (i +1)
        .endr
        .if (klen == KEY_128)
                .if (load_keys)
-                        vmovdqa 6*16(p_keys), xkeyB
+                        vmovdqa 6*16(p_keys), xkey8
                .endif
        .else
                vmovdqa 6*16(p_keys), xkeyB
@@ -267,12 +277,17 @@ ddq_add_8:
        .set i, 0
        .rept by
                club XDATA, i
-                vaesenc xkeyB, var_xdata, var_xdata             /* key 6 */
+                /* key 6 */
+                .if (klen == KEY_128)
+                        vaesenc xkey8, var_xdata, var_xdata
+                .else
+                        vaesenc xkeyB, var_xdata, var_xdata
+                .endif
                .set i, (i +1)
        .endr
        .if (klen == KEY_128)
-                vmovdqa 8*16(p_keys), xkey8
+                vmovdqa 8*16(p_keys), xkeyB
        .else
                .if (load_keys)
                        vmovdqa 8*16(p_keys), xkey8
@@ -288,7 +303,7 @@ ddq_add_8:
        .if (klen == KEY_128)
                .if (load_keys)
-                        vmovdqa 9*16(p_keys), xkeyA
+                        vmovdqa 9*16(p_keys), xkey12
                .endif
        .else
                vmovdqa 9*16(p_keys), xkeyA
@@ -297,7 +312,12 @@ ddq_add_8:
        .set i, 0
        .rept by
                club XDATA, i
-                vaesenc xkey8, var_xdata, var_xdata             /* key 8 */
+                /* key 8 */
+                .if (klen == KEY_128)
+                        vaesenc xkeyB, var_xdata, var_xdata
+                .else
+                        vaesenc xkey8, var_xdata, var_xdata
+                .endif
                .set i, (i +1)
        .endr
@@ -306,7 +326,12 @@ ddq_add_8:
        .set i, 0
        .rept by
                club XDATA, i
-                vaesenc xkeyA, var_xdata, var_xdata             /* key 9 */
+                /* key 9 */
+                .if (klen == KEY_128)
+                        vaesenc xkey12, var_xdata, var_xdata
+                .else
+                        vaesenc xkeyA, var_xdata, var_xdata
+                .endif
                .set i, (i +1)
        .endr
@@ -412,7 +437,6 @@ ddq_add_8:
 /* main body of aes ctr load */
 .macro do_aes_ctrmain key_len
        cmp     $16, num_bytes
        jb      .Ldo_return2\key_len
diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c
index a225a5ca1037..fd9f6b035b16 100644
--- a/arch/x86/crypto/sha-mb/sha1_mb.c
+++ b/arch/x86/crypto/sha-mb/sha1_mb.c
@@ -931,4 +931,4 @@ module_exit(sha1_mb_mod_fini);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, multi buffer accelerated");
-MODULE_ALIAS("sha1");
+MODULE_ALIAS_CRYPTO("sha1");
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 0ab4f9fd2687..3a45668f6dc3 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -50,6 +50,7 @@ void acpi_pic_sci_set_trigger(unsigned int, u16);
 extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
                                  int trigger, int polarity);
+extern void (*__acpi_unregister_gsi)(u32 gsi);
 static inline void disable_acpi(void)
 {
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 50d033a8947d..a94b82e8f156 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -251,7 +251,8 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
                gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
 }
-#define _LDT_empty(info)                                \
+/* This intentionally ignores lm, since 32-bit apps don't have that field. */
+#define LDT_empty(info)                                 \
        ((info)->base_addr              == 0    &&      \
         (info)->limit                  == 0    &&      \
         (info)->contents               == 0    &&      \
@@ -261,11 +262,18 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
         (info)->seg_not_present        == 1    &&      \
         (info)->useable                == 0)
-#ifdef CONFIG_X86_64
+/* Lots of programs expect an all-zero user_desc to mean "no segment at all". */
-#define LDT_empty(info) (_LDT_empty(info) && ((info)->lm == 0))
+static inline bool LDT_zero(const struct user_desc *info)
-#else
+{
-#define LDT_empty(info) (_LDT_empty(info))
+        return (info->base_addr         == 0 &&
-#endif
+                info->limit             == 0 &&
+                info->contents          == 0 &&
+                info->read_exec_only    == 0 &&
+                info->seg_32bit         == 0 &&
+                info->limit_in_pages    == 0 &&
+                info->seg_not_present   == 0 &&
+                info->useable           == 0);
+}
 static inline void clear_LDT(void)
 {
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 40269a2bf6f9..4b75d591eb5e 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -130,7 +130,25 @@ static inline void arch_bprm_mm_init(struct mm_struct *mm,
 static inline void arch_unmap(struct mm_struct *mm, struct vm_area_struct *vma,
                              unsigned long start, unsigned long end)
 {
-        mpx_notify_unmap(mm, vma, start, end);
+        /*
+         * mpx_notify_unmap() goes and reads a rarely-hot
+         * cacheline in the mm_struct.  That can be expensive
+         * enough to be seen in profiles.
+         *
+         * The mpx_notify_unmap() call and its contents have been
+         * observed to affect munmap() performance on hardware
+         * where MPX is not present.
+         *
+         * The unlikely() optimizes for the fast case: no MPX
+         * in the CPU, or no MPX use in the process.  Even if
+         * we get this wrong (in the unlikely event that MPX
+         * is widely enabled on some system) the overhead of
+         * MPX itself (reading bounds tables) is expected to
+         * overwhelm the overhead of getting this unlikely()
+         * consistently wrong.
+         */
+        if (unlikely(cpu_feature_enabled(X86_FEATURE_MPX)))
+                mpx_notify_unmap(mm, vma, start, end);
 }
 #endif /* _ASM_X86_MMU_CONTEXT_H */
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index e7e9682a33e9..f556c4843aa1 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -80,9 +80,11 @@ static inline unsigned int __getcpu(void)
        /*
         * Load per CPU data from GDT.  LSL is faster than RDTSCP and
-         * works on all CPUs.
+         * works on all CPUs.  This is volatile so that it orders
+         * correctly wrt barrier() and to keep gcc from cleverly
+         * hoisting it out of the calling function.
         */
-        asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
+        asm volatile ("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG));
        return p;
 }
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 4433a4be8171..b9e30daa0881 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -611,20 +611,20 @@ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
 int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp)
 {
-        int irq;
+        int rc, irq, trigger, polarity;
-        if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
+        rc = acpi_get_override_irq(gsi, &trigger, &polarity);
-                *irqp = gsi;
+        if (rc == 0) {
-        } else {
+                trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
-                mutex_lock(&acpi_ioapic_lock);
+                polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
-                irq = mp_map_gsi_to_irq(gsi,
+                irq = acpi_register_gsi(NULL, gsi, trigger, polarity);
-                                        IOAPIC_MAP_ALLOC | IOAPIC_MAP_CHECK);
+                if (irq >= 0) {
-                mutex_unlock(&acpi_ioapic_lock);
+                        *irqp = irq;
-                if (irq < 0)
+                        return 0;
-                        return -1;
+                }
-                *irqp = irq;
        }
-        return 0;
+        return -1;
 }
 EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
@@ -750,13 +750,13 @@ static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 }
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
+int __ref acpi_map_cpu(acpi_handle handle, int physid, int *pcpu)
 {
        return _acpi_map_lsapic(handle, physid, pcpu);
 }
-EXPORT_SYMBOL(acpi_map_lsapic);
+EXPORT_SYMBOL(acpi_map_cpu);
-int acpi_unmap_lsapic(int cpu)
+int acpi_unmap_cpu(int cpu)
 {
 #ifdef CONFIG_ACPI_NUMA
        set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE);
@@ -768,8 +768,7 @@ int acpi_unmap_lsapic(int cpu)
        return (0);
 }
+EXPORT_SYMBOL(acpi_unmap_cpu);
-EXPORT_SYMBOL(acpi_unmap_lsapic);
 #endif                          /* CONFIG_ACPI_HOTPLUG_CPU */
 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index e27b49d7c922..80091ae54c2b 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -66,3 +66,4 @@ targets += capflags.c
 $(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE
        $(call if_changed,mkcapflags)
 endif
+clean-files += capflags.c
diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh
index e2b22df964cd..36d99a337b49 100644
--- a/arch/x86/kernel/cpu/mkcapflags.sh
+++ b/arch/x86/kernel/cpu/mkcapflags.sh
@@ -28,7 +28,7 @@ function dump_array()
                # If the /* comment */ starts with a quote string, grab that.
                VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')"
                [ -z "$VALUE" ] && VALUE="\"$NAME\""
-                [ "$VALUE" == '""' ] && continue
+                [ "$VALUE" = '""' ] && continue
                # Name is uppercase, VALUE is all lowercase
                VALUE="$(echo "$VALUE" | tr A-Z a-z)"
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index a450373e8e91..939155ffdece 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -107,6 +107,7 @@ static struct clocksource hyperv_cs = {
        .rating         = 400, /* use this when running on Hyperv*/
        .read           = read_hv_clock,
        .mask           = CLOCKSOURCE_MASK(64),
+        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 static void __init ms_hyperv_init_platform(void)
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 3c895d480cd7..073983398364 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -568,8 +568,8 @@ struct event_constraint intel_atom_pebs_event_constraints[] = {
 };
 struct event_constraint intel_slm_pebs_event_constraints[] = {
-        /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
+        /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
-        INTEL_FLAGS_EVENT_CONSTRAINT(0x108001c2, 0xf),
+        INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x1),
        /* Allow all events as PEBS with no flags */
        INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
        EVENT_CONSTRAINT_END
diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
index 673f930c700f..6e434f8e5fc8 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c
@@ -103,6 +103,13 @@ static struct kobj_attribute format_attr_##_var =		\
 #define RAPL_CNTR_WIDTH 32 /* 32-bit rapl counters */
+#define RAPL_EVENT_ATTR_STR(_name, v, str)                              \
+static struct perf_pmu_events_attr event_attr_##v = {                   \
+        .attr           = __ATTR(_name, 0444, rapl_sysfs_show, NULL),   \
+        .id             = 0,                                            \
+        .event_str      = str,                                          \
+};
 struct rapl_pmu {
        spinlock_t       lock;
        int              hw_unit;  /* 1/2^hw_unit Joule */
@@ -379,23 +386,36 @@ static struct attribute_group rapl_pmu_attr_group = {
        .attrs = rapl_pmu_attrs,
 };
-EVENT_ATTR_STR(energy-cores, rapl_cores, "event=0x01");
+static ssize_t rapl_sysfs_show(struct device *dev,
-EVENT_ATTR_STR(energy-pkg  ,   rapl_pkg, "event=0x02");
+                               struct device_attribute *attr,
-EVENT_ATTR_STR(energy-ram  ,   rapl_ram, "event=0x03");
+                               char *page)
-EVENT_ATTR_STR(energy-gpu  ,   rapl_gpu, "event=0x04");
+{
+        struct perf_pmu_events_attr *pmu_attr = \
+                container_of(attr, struct perf_pmu_events_attr, attr);
+        if (pmu_attr->event_str)
+                return sprintf(page, "%s", pmu_attr->event_str);
+        return 0;
+}
+RAPL_EVENT_ATTR_STR(energy-cores, rapl_cores, "event=0x01");
+RAPL_EVENT_ATTR_STR(energy-pkg  ,   rapl_pkg, "event=0x02");
+RAPL_EVENT_ATTR_STR(energy-ram  ,   rapl_ram, "event=0x03");
+RAPL_EVENT_ATTR_STR(energy-gpu  ,   rapl_gpu, "event=0x04");
-EVENT_ATTR_STR(energy-cores.unit, rapl_cores_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-cores.unit, rapl_cores_unit, "Joules");
-EVENT_ATTR_STR(energy-pkg.unit  ,   rapl_pkg_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-pkg.unit  ,   rapl_pkg_unit, "Joules");
-EVENT_ATTR_STR(energy-ram.unit  ,   rapl_ram_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-ram.unit  ,   rapl_ram_unit, "Joules");
-EVENT_ATTR_STR(energy-gpu.unit  ,   rapl_gpu_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-gpu.unit  ,   rapl_gpu_unit, "Joules");
 /*
 * we compute in 0.23 nJ increments regardless of MSR
 */
-EVENT_ATTR_STR(energy-cores.scale, rapl_cores_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-cores.scale, rapl_cores_scale, "2.3283064365386962890625e-10");
-EVENT_ATTR_STR(energy-pkg.scale,     rapl_pkg_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-pkg.scale,     rapl_pkg_scale, "2.3283064365386962890625e-10");
-EVENT_ATTR_STR(energy-ram.scale,     rapl_ram_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-ram.scale,     rapl_ram_scale, "2.3283064365386962890625e-10");
-EVENT_ATTR_STR(energy-gpu.scale,     rapl_gpu_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-gpu.scale,     rapl_gpu_scale, "2.3283064365386962890625e-10");
 static struct attribute *rapl_events_srv_attr[] = {
        EVENT_PTR(rapl_cores),
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 18eb78bbdd10..863d9b02563e 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -17,7 +17,7 @@
 #define UNCORE_PCI_DEV_TYPE(data)       ((data >> 8) & 0xff)
 #define UNCORE_PCI_DEV_IDX(data)        (data & 0xff)
 #define UNCORE_EXTRA_PCI_DEV            0xff
-#define UNCORE_EXTRA_PCI_DEV_MAX        2
+#define UNCORE_EXTRA_PCI_DEV_MAX        3
 /* support up to 8 sockets */
 #define UNCORE_SOCKET_MAX               8
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
index 745b158e9a65..21af6149edf2 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore_snbep.c
@@ -891,6 +891,7 @@ void snbep_uncore_cpu_init(void)
 enum {
        SNBEP_PCI_QPI_PORT0_FILTER,
        SNBEP_PCI_QPI_PORT1_FILTER,
+        HSWEP_PCI_PCU_3,
 };
 static int snbep_qpi_hw_config(struct intel_uncore_box *box, struct perf_event *event)
@@ -2026,6 +2027,17 @@ void hswep_uncore_cpu_init(void)
 {
        if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
                hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+        /* Detect 6-8 core systems with only two SBOXes */
+        if (uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3]) {
+                u32 capid4;
+                pci_read_config_dword(uncore_extra_pci_dev[0][HSWEP_PCI_PCU_3],
+                                      0x94, &capid4);
+                if (((capid4 >> 6) & 0x3) == 0)
+                        hswep_uncore_sbox.num_boxes = 2;
+        }
        uncore_msr_uncores = hswep_msr_uncores;
 }
@@ -2287,6 +2299,11 @@ static DEFINE_PCI_DEVICE_TABLE(hswep_uncore_pci_ids) = {
                .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
                                                   SNBEP_PCI_QPI_PORT1_FILTER),
        },
+        { /* PCU.3 (for Capability registers) */
+                PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fc0),
+                .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+                                                   HSWEP_PCI_PCU_3),
+        },
        { /* end: all zeroes */ }
 };
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 2142376dc8c6..8b7b0a51e742 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -674,7 +674,7 @@ static inline void *alloc_tramp(unsigned long size)
 }
 static inline void tramp_free(void *tramp)
 {
-        module_free(NULL, tramp);
+        module_memfree(tramp);
 }
 #else
 /* Trampolines can only be created if modules are supported */
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 6307a0f0cf17..705ef8d48e2d 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -127,7 +127,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
        seq_puts(p, "  Machine check polls\n");
 #endif
 #if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
-        seq_printf(p, "%*s: ", prec, "THR");
+        seq_printf(p, "%*s: ", prec, "HYP");
        for_each_online_cpu(j)
                seq_printf(p, "%10u ", irq_stats(j)->irq_hv_callback_count);
        seq_puts(p, "  Hypervisor callback interrupts\n");
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index f7e3cd50ece0..98f654d466e5 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1020,6 +1020,15 @@ int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
        regs->flags &= ~X86_EFLAGS_IF;
        trace_hardirqs_off();
        regs->ip = (unsigned long)(jp->entry);
+        /*
+         * jprobes use jprobe_return() which skips the normal return
+         * path of the function, and this messes up the accounting of the
+         * function graph tracer to get messed up.
+         *
+         * Pause function graph tracing while performing the jprobe function.
+         */
+        pause_graph_tracing();
        return 1;
 }
 NOKPROBE_SYMBOL(setjmp_pre_handler);
@@ -1048,24 +1057,25 @@ int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
        struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
        u8 *addr = (u8 *) (regs->ip - 1);
        struct jprobe *jp = container_of(p, struct jprobe, kp);
+        void *saved_sp = kcb->jprobe_saved_sp;
        if ((addr > (u8 *) jprobe_return) &&
            (addr < (u8 *) jprobe_return_end)) {
-                if (stack_addr(regs) != kcb->jprobe_saved_sp) {
+                if (stack_addr(regs) != saved_sp) {
                        struct pt_regs *saved_regs = &kcb->jprobe_saved_regs;
                        printk(KERN_ERR
                               "current sp %p does not match saved sp %p\n",
-                               stack_addr(regs), kcb->jprobe_saved_sp);
+                               stack_addr(regs), saved_sp);
                        printk(KERN_ERR "Saved registers for jprobe %p\n", jp);
                        show_regs(saved_regs);
                        printk(KERN_ERR "Current registers\n");
                        show_regs(regs);
                        BUG();
                }
+                /* It's OK to start function graph tracing again */
+                unpause_graph_tracing();
                *regs = kcb->jprobe_saved_regs;
-                memcpy((kprobe_opcode_t *)(kcb->jprobe_saved_sp),
+                memcpy(saved_sp, kcb->jprobes_stack, MIN_STACK_SIZE(saved_sp));
-                       kcb->jprobes_stack,
-                       MIN_STACK_SIZE(kcb->jprobe_saved_sp));
                preempt_enable_no_resched();
                return 1;
        }
diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index e309cc5c276e..781861cc5ee8 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -78,6 +78,14 @@ u64 perf_reg_abi(struct task_struct *task)
 {
        return PERF_SAMPLE_REGS_ABI_32;
 }
+void perf_get_regs_user(struct perf_regs *regs_user,
+                        struct pt_regs *regs,
+                        struct pt_regs *regs_user_copy)
+{
+        regs_user->regs = task_pt_regs(current);
+        regs_user->abi = perf_reg_abi(current);
+}
 #else /* CONFIG_X86_64 */
 #define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
                       (1ULL << PERF_REG_X86_ES) | \
@@ -102,4 +110,86 @@ u64 perf_reg_abi(struct task_struct *task)
        else
                return PERF_SAMPLE_REGS_ABI_64;
 }
+void perf_get_regs_user(struct perf_regs *regs_user,
+                        struct pt_regs *regs,
+                        struct pt_regs *regs_user_copy)
+{
+        struct pt_regs *user_regs = task_pt_regs(current);
+        /*
+         * If we're in an NMI that interrupted task_pt_regs setup, then
+         * we can't sample user regs at all.  This check isn't really
+         * sufficient, though, as we could be in an NMI inside an interrupt
+         * that happened during task_pt_regs setup.
+         */
+        if (regs->sp > (unsigned long)&user_regs->r11 &&
+            regs->sp <= (unsigned long)(user_regs + 1)) {
+                regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;
+                regs_user->regs = NULL;
+                return;
+        }
+        /*
+         * RIP, flags, and the argument registers are usually saved.
+         * orig_ax is probably okay, too.
+         */
+        regs_user_copy->ip = user_regs->ip;
+        regs_user_copy->cx = user_regs->cx;
+        regs_user_copy->dx = user_regs->dx;
+        regs_user_copy->si = user_regs->si;
+        regs_user_copy->di = user_regs->di;
+        regs_user_copy->r8 = user_regs->r8;
+        regs_user_copy->r9 = user_regs->r9;
+        regs_user_copy->r10 = user_regs->r10;
+        regs_user_copy->r11 = user_regs->r11;
+        regs_user_copy->orig_ax = user_regs->orig_ax;
+        regs_user_copy->flags = user_regs->flags;
+        /*
+         * Don't even try to report the "rest" regs.
+         */
+        regs_user_copy->bx = -1;
+        regs_user_copy->bp = -1;
+        regs_user_copy->r12 = -1;
+        regs_user_copy->r13 = -1;
+        regs_user_copy->r14 = -1;
+        regs_user_copy->r15 = -1;
+        /*
+         * For this to be at all useful, we need a reasonable guess for
+         * sp and the ABI.  Be careful: we're in NMI context, and we're
+         * considering current to be the current task, so we should
+         * be careful not to look at any other percpu variables that might
+         * change during context switches.
+         */
+        if (IS_ENABLED(CONFIG_IA32_EMULATION) &&
+            task_thread_info(current)->status & TS_COMPAT) {
+                /* Easy case: we're in a compat syscall. */
+                regs_user->abi = PERF_SAMPLE_REGS_ABI_32;
+                regs_user_copy->sp = user_regs->sp;
+                regs_user_copy->cs = user_regs->cs;
+                regs_user_copy->ss = user_regs->ss;
+        } else if (user_regs->orig_ax != -1) {
+                /*
+                 * We're probably in a 64-bit syscall.
+                 * Warning: this code is severely racy.  At least it's better
+                 * than just blindly copying user_regs.
+                 */
+                regs_user->abi = PERF_SAMPLE_REGS_ABI_64;
+                regs_user_copy->sp = this_cpu_read(old_rsp);
+                regs_user_copy->cs = __USER_CS;
+                regs_user_copy->ss = __USER_DS;
+                regs_user_copy->cx = -1;  /* usually contains garbage */
+        } else {
+                /* We're probably in an interrupt or exception. */
+                regs_user->abi = user_64bit_mode(user_regs) ?
+                        PERF_SAMPLE_REGS_ABI_64 : PERF_SAMPLE_REGS_ABI_32;
+                regs_user_copy->sp = user_regs->sp;
+                regs_user_copy->cs = user_regs->cs;
+                regs_user_copy->ss = user_regs->ss;
+        }
+        regs_user->regs = regs_user_copy;
+}
 #endif /* CONFIG_X86_32 */
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index 4e942f31b1a7..7fc5e843f247 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -29,7 +29,28 @@ static int get_free_idx(void)
 static bool tls_desc_okay(const struct user_desc *info)
 {
-        if (LDT_empty(info))
+        /*
+         * For historical reasons (i.e. no one ever documented how any
+         * of the segmentation APIs work), user programs can and do
+         * assume that a struct user_desc that's all zeros except for
+         * entry_number means "no segment at all".  This never actually
+         * worked.  In fact, up to Linux 3.19, a struct user_desc like
+         * this would create a 16-bit read-write segment with base and
+         * limit both equal to zero.
+         *
+         * That was close enough to "no segment at all" until we
+         * hardened this function to disallow 16-bit TLS segments.  Fix
+         * it up by interpreting these zeroed segments the way that they
+         * were almost certainly intended to be interpreted.
+         *
+         * The correct way to ask for "no segment at all" is to specify
+         * a user_desc that satisfies LDT_empty.  To keep everything
+         * working, we accept both.
+         *
+         * Note that there's a similar kludge in modify_ldt -- look at
+         * the distinction between modes 1 and 0x11.
+         */
+        if (LDT_empty(info) || LDT_zero(info))
                return true;
        /*
@@ -71,7 +92,7 @@ static void set_tls_desc(struct task_struct *p, int idx,
        cpu = get_cpu();
        while (n-- > 0) {
-                if (LDT_empty(info))
+                if (LDT_empty(info) || LDT_zero(info))
                        desc->a = desc->b = 0;
                else
                        fill_ldt(desc, info);
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index b7e50bba3bbb..505449700e0c 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -617,7 +617,7 @@ static unsigned long quick_pit_calibrate(void)
                        goto success;
                }
        }
-        pr_err("Fast TSC calibration failed\n");
+        pr_info("Fast TSC calibration failed\n");
        return 0;
 success:
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 169b09d76ddd..de12c1d379f1 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2348,7 +2348,7 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
         * Not recognized on AMD in compat mode (but is recognized in legacy
         * mode).
         */
-        if ((ctxt->mode == X86EMUL_MODE_PROT32) && (efer & EFER_LMA)
+        if ((ctxt->mode != X86EMUL_MODE_PROT64) && (efer & EFER_LMA)
            && !vendor_intel(ctxt))
                return emulate_ud(ctxt);
@@ -2359,25 +2359,13 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
        setup_syscalls_segments(ctxt, &cs, &ss);
        ops->get_msr(ctxt, MSR_IA32_SYSENTER_CS, &msr_data);
-        switch (ctxt->mode) {
+        if ((msr_data & 0xfffc) == 0x0)
-        case X86EMUL_MODE_PROT32:
+                return emulate_gp(ctxt, 0);
-                if ((msr_data & 0xfffc) == 0x0)
-                        return emulate_gp(ctxt, 0);
-                break;
-        case X86EMUL_MODE_PROT64:
-                if (msr_data == 0x0)
-                        return emulate_gp(ctxt, 0);
-                break;
-        default:
-                break;
-        }
        ctxt->eflags &= ~(EFLG_VM | EFLG_IF);
-        cs_sel = (u16)msr_data;
+        cs_sel = (u16)msr_data & ~SELECTOR_RPL_MASK;
-        cs_sel &= ~SELECTOR_RPL_MASK;
        ss_sel = cs_sel + 8;
-        ss_sel &= ~SELECTOR_RPL_MASK;
+        if (efer & EFER_LMA) {
-        if (ctxt->mode == X86EMUL_MODE_PROT64 || (efer & EFER_LMA)) {
                cs.d = 0;
                cs.l = 1;
        }
@@ -2386,10 +2374,11 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
        ops->set_segment(ctxt, ss_sel, &ss, 0, VCPU_SREG_SS);
        ops->get_msr(ctxt, MSR_IA32_SYSENTER_EIP, &msr_data);
-        ctxt->_eip = msr_data;
+        ctxt->_eip = (efer & EFER_LMA) ? msr_data : (u32)msr_data;
        ops->get_msr(ctxt, MSR_IA32_SYSENTER_ESP, &msr_data);
-        *reg_write(ctxt, VCPU_REGS_RSP) = msr_data;
+        *reg_write(ctxt, VCPU_REGS_RSP) = (efer & EFER_LMA) ? msr_data :
+                                                              (u32)msr_data;
        return X86EMUL_CONTINUE;
 }
@@ -3791,8 +3780,8 @@ static const struct opcode group5[] = {
 };
 static const struct opcode group6[] = {
-        DI(Prot,        sldt),
+        DI(Prot | DstMem,       sldt),
-        DI(Prot,        str),
+        DI(Prot | DstMem,       str),
        II(Prot | Priv | SrcMem16, em_lldt, lldt),
        II(Prot | Priv | SrcMem16, em_ltr, ltr),
        N, N, N, N,
diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c
index 2480978b31cc..1313ae6b478b 100644
--- a/arch/x86/lib/insn.c
+++ b/arch/x86/lib/insn.c
@@ -28,7 +28,7 @@
 /* Verify next sizeof(t) bytes can be on the same instruction */
 #define validate_next(t, insn, n)       \
-        ((insn)->next_byte + sizeof(t) + n < (insn)->end_kaddr)
+        ((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
 #define __get_next(t, insn)     \
        ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; })
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index a97ee0801475..079c3b6a3ff1 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -43,7 +43,7 @@ uint16_t __cachemode2pte_tbl[_PAGE_CACHE_MODE_NUM] = {
        [_PAGE_CACHE_MODE_WT]           = _PAGE_PCD,
        [_PAGE_CACHE_MODE_WP]           = _PAGE_PCD,
 };
-EXPORT_SYMBOL_GPL(__cachemode2pte_tbl);
+EXPORT_SYMBOL(__cachemode2pte_tbl);
 uint8_t __pte2cachemode_tbl[8] = {
        [__pte2cm_idx(0)] = _PAGE_CACHE_MODE_WB,
        [__pte2cm_idx(_PAGE_PWT)] = _PAGE_CACHE_MODE_WC,
@@ -54,7 +54,7 @@ uint8_t __pte2cachemode_tbl[8] = {
        [__pte2cm_idx(_PAGE_PCD | _PAGE_PAT)] = _PAGE_CACHE_MODE_UC_MINUS,
        [__pte2cm_idx(_PAGE_PWT | _PAGE_PCD | _PAGE_PAT)] = _PAGE_CACHE_MODE_UC,
 };
-EXPORT_SYMBOL_GPL(__pte2cachemode_tbl);
+EXPORT_SYMBOL(__pte2cachemode_tbl);
 static unsigned long __initdata pgt_buf_start;
 static unsigned long __initdata pgt_buf_end;
@@ -438,20 +438,20 @@ static unsigned long __init init_range_memory_mapping(
 static unsigned long __init get_new_step_size(unsigned long step_size)
 {
        /*
-         * Explain why we shift by 5 and why we don't have to worry about
+         * Initial mapped size is PMD_SIZE (2M).
-         * 'step_size << 5' overflowing:
-         *
-         * initial mapped size is PMD_SIZE (2M).
         * We can not set step_size to be PUD_SIZE (1G) yet.
         * In worse case, when we cross the 1G boundary, and
         * PG_LEVEL_2M is not set, we will need 1+1+512 pages (2M + 8k)
-         * to map 1G range with PTE. Use 5 as shift for now.
+         * to map 1G range with PTE. Hence we use one less than the
+         * difference of page table level shifts.
         *
-         * Don't need to worry about overflow, on 32bit, when step_size
+         * Don't need to worry about overflow in the top-down case, on 32bit,
-         * is 0, round_down() returns 0 for start, and that turns it
+         * when step_size is 0, round_down() returns 0 for start, and that
-         * into 0x100000000ULL.
+         * turns it into 0x100000000ULL.
+         * In the bottom-up case, round_up(x, 0) returns 0 though too, which
+         * needs to be taken into consideration by the code below.
         */
-        return step_size << 5;
+        return step_size << (PMD_SHIFT - PAGE_SHIFT - 1);
 }
 /**
@@ -471,7 +471,6 @@ static void __init memory_map_top_down(unsigned long map_start,
        unsigned long step_size;
        unsigned long addr;
        unsigned long mapped_ram_size = 0;
-        unsigned long new_mapped_ram_size;
        /* xen has big range in reserved near end of ram, skip it at first.*/
        addr = memblock_find_in_range(map_start, map_end, PMD_SIZE, PMD_SIZE);
@@ -496,14 +495,12 @@ static void __init memory_map_top_down(unsigned long map_start,
                                start = map_start;
                } else
                        start = map_start;
-                new_mapped_ram_size = init_range_memory_mapping(start,
+                mapped_ram_size += init_range_memory_mapping(start,
                                                        last_start);
                last_start = start;
                min_pfn_mapped = last_start >> PAGE_SHIFT;
-                /* only increase step_size after big range get mapped */
+                if (mapped_ram_size >= step_size)
-                if (new_mapped_ram_size > mapped_ram_size)
                        step_size = get_new_step_size(step_size);
-                mapped_ram_size += new_mapped_ram_size;
        }
        if (real_end < map_end)
@@ -524,7 +521,7 @@ static void __init memory_map_top_down(unsigned long map_start,
 static void __init memory_map_bottom_up(unsigned long map_start,
                                        unsigned long map_end)
 {
-        unsigned long next, new_mapped_ram_size, start;
+        unsigned long next, start;
        unsigned long mapped_ram_size = 0;
        /* step_size need to be small so pgt_buf from BRK could cover it */
        unsigned long step_size = PMD_SIZE;
@@ -539,19 +536,19 @@ static void __init memory_map_bottom_up(unsigned long map_start,
         * for page table.
         */
        while (start < map_end) {
-                if (map_end - start > step_size) {
+                if (step_size && map_end - start > step_size) {
                        next = round_up(start + 1, step_size);
                        if (next > map_end)
                                next = map_end;
-                } else
+                } else {
                        next = map_end;
+                }
-                new_mapped_ram_size = init_range_memory_mapping(start, next);
+                mapped_ram_size += init_range_memory_mapping(start, next);
                start = next;
-                if (new_mapped_ram_size > mapped_ram_size)
+                if (mapped_ram_size >= step_size)
                        step_size = get_new_step_size(step_size);
-                mapped_ram_size += new_mapped_ram_size;
        }
 }
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 67ebf5751222..c439ec478216 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -349,6 +349,12 @@ static __user void *task_get_bounds_dir(struct task_struct *tsk)
                return MPX_INVALID_BOUNDS_DIR;
        /*
+         * 32-bit binaries on 64-bit kernels are currently
+         * unsupported.
+         */
+        if (IS_ENABLED(CONFIG_X86_64) && test_thread_flag(TIF_IA32))
+                return MPX_INVALID_BOUNDS_DIR;
+        /*
         * The bounds directory pointer is stored in a register
         * only accessible if we first do an xsave.
         */
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index edf299c8ff6c..7ac68698406c 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -234,8 +234,13 @@ void pat_init(void)
              PAT(4, WB) | PAT(5, WC) | PAT(6, UC_MINUS) | PAT(7, UC);
        /* Boot CPU check */
-        if (!boot_pat_state)
+        if (!boot_pat_state) {
                rdmsrl(MSR_IA32_CR_PAT, boot_pat_state);
+                if (!boot_pat_state) {
+                        pat_disable("PAT read returns always zero, disabled.");
+                        return;
+                }
+        }
        wrmsrl(MSR_IA32_CR_PAT, pat);
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 9b18ef315a55..349c0d32cc0b 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -216,7 +216,7 @@ static void pcibios_allocate_bridge_resources(struct pci_dev *dev)
                        continue;
                if (r->parent)  /* Already allocated */
                        continue;
-                if (!r->start || pci_claim_resource(dev, idx) < 0) {
+                if (!r->start || pci_claim_bridge_resource(dev, idx) < 0) {
                        /*
                         * Something is wrong with the region.
                         * Invalidate the resource to prevent
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index c489ef2c1a39..9098d880c476 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -458,6 +458,7 @@ int __init pci_xen_hvm_init(void)
         * just how GSIs get registered.
         */
        __acpi_register_gsi = acpi_register_gsi_xen_hvm;
+        __acpi_unregister_gsi = NULL;
 #endif
 #ifdef CONFIG_PCI_MSI
@@ -471,52 +472,6 @@ int __init pci_xen_hvm_init(void)
 }
 #ifdef CONFIG_XEN_DOM0
-static __init void xen_setup_acpi_sci(void)
-{
-        int rc;
-        int trigger, polarity;
-        int gsi = acpi_sci_override_gsi;
-        int irq = -1;
-        int gsi_override = -1;
-        if (!gsi)
-                return;
-        rc = acpi_get_override_irq(gsi, &trigger, &polarity);
-        if (rc) {
-                printk(KERN_WARNING "xen: acpi_get_override_irq failed for acpi"
-                                " sci, rc=%d\n", rc);
-                return;
-        }
-        trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
-        polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
-        printk(KERN_INFO "xen: sci override: global_irq=%d trigger=%d "
-                        "polarity=%d\n", gsi, trigger, polarity);
-        /* Before we bind the GSI to a Linux IRQ, check whether
-         * we need to override it with bus_irq (IRQ) value. Usually for
-         * IRQs below IRQ_LEGACY_IRQ this holds IRQ == GSI, as so:
-         *  ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level)
-         * but there are oddballs where the IRQ != GSI:
-         *  ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 20 low level)
-         * which ends up being: gsi_to_irq[9] == 20
-         * (which is what acpi_gsi_to_irq ends up calling when starting the
-         * the ACPI interpreter and keels over since IRQ 9 has not been
-         * setup as we had setup IRQ 20 for it).
-         */
-        if (acpi_gsi_to_irq(gsi, &irq) == 0) {
-                /* Use the provided value if it's valid. */
-                if (irq >= 0)
-                        gsi_override = irq;
-        }
-        gsi = xen_register_gsi(gsi, gsi_override, trigger, polarity);
-        printk(KERN_INFO "xen: acpi sci %d\n", gsi);
-        return;
-}
 int __init pci_xen_initial_domain(void)
 {
        int irq;
@@ -527,8 +482,8 @@ int __init pci_xen_initial_domain(void)
        x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs;
        pci_msi_ignore_mask = 1;
 #endif
-        xen_setup_acpi_sci();
        __acpi_register_gsi = acpi_register_gsi_xen;
+        __acpi_unregister_gsi = NULL;
        /* Pre-allocate legacy irqs */
        for (irq = 0; irq < nr_legacy_irqs(); irq++) {
                int trigger, polarity;
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index 531d4269e2e3..bd16d6c370ec 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -34,7 +34,7 @@ typedef asmlinkage void (*sys_call_ptr_t)(void);
 extern asmlinkage void sys_ni_syscall(void);
-const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
+const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
        /*
         * Smells like a compiler bug -- it doesn't work
         * when the & below is removed.
diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c
index 20c3649d0691..5cdfa9db2217 100644
--- a/arch/x86/um/sys_call_table_64.c
+++ b/arch/x86/um/sys_call_table_64.c
@@ -47,7 +47,7 @@ typedef void (*sys_call_ptr_t)(void);
 extern void sys_ni_syscall(void);
-const sys_call_ptr_t sys_call_table[] __cacheline_aligned = {
+const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
        /*
         * Smells like a compiler bug -- it doesn't work
         * when the & below is removed.
diff --git a/arch/x86/vdso/vma.c b/arch/x86/vdso/vma.c
index 009495b9ab4b..1c9f750c3859 100644
--- a/arch/x86/vdso/vma.c
+++ b/arch/x86/vdso/vma.c
@@ -41,12 +41,17 @@ void __init init_vdso_image(const struct vdso_image *image)
 struct linux_binprm;
-/* Put the vdso above the (randomized) stack with another randomized offset.
+/*
-   This way there is no hole in the middle of address space.
+ * Put the vdso above the (randomized) stack with another randomized
-   To save memory make sure it is still in the same PTE as the stack top.
+ * offset.  This way there is no hole in the middle of address space.
-   This doesn't give that many random bits.
+ * To save memory make sure it is still in the same PTE as the stack
+ * top.  This doesn't give that many random bits.
-   Only used for the 64-bit and x32 vdsos. */
+ *
+ * Note that this algorithm is imperfect: the distribution of the vdso
+ * start address within a PMD is biased toward the end.
+ *
+ * Only used for the 64-bit and x32 vdsos.
+ */
 static unsigned long vdso_addr(unsigned long start, unsigned len)
 {
 #ifdef CONFIG_X86_32
@@ -54,22 +59,30 @@ static unsigned long vdso_addr(unsigned long start, unsigned len)
 #else
        unsigned long addr, end;
        unsigned offset;
-        end = (start + PMD_SIZE - 1) & PMD_MASK;
+        /*
+         * Round up the start address.  It can start out unaligned as a result
+         * of stack start randomization.
+         */
+        start = PAGE_ALIGN(start);
+        /* Round the lowest possible end address up to a PMD boundary. */
+        end = (start + len + PMD_SIZE - 1) & PMD_MASK;
        if (end >= TASK_SIZE_MAX)
                end = TASK_SIZE_MAX;
        end -= len;
-        /* This loses some more bits than a modulo, but is cheaper */
-        offset = get_random_int() & (PTRS_PER_PTE - 1);
+        if (end > start) {
-        addr = start + (offset << PAGE_SHIFT);
+                offset = get_random_int() % (((end - start) >> PAGE_SHIFT) + 1);
-        if (addr >= end)
+                addr = start + (offset << PAGE_SHIFT);
-                addr = end;
+        } else {
+                addr = start;
+        }
        /*
-         * page-align it here so that get_unmapped_area doesn't
+         * Forcibly align the final address in case we have a hardware
-         * align it wrongfully again to the next page. addr can come in 4K
+         * issue that requires alignment for performance reasons.
-         * unaligned here as a result of stack start randomization.
         */
-        addr = PAGE_ALIGN(addr);
        addr = align_vdso_addr(addr);
        return addr;
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 6bf3a13e3e0f..78a881b7fc41 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -40,6 +40,7 @@
 #include <xen/interface/physdev.h>
 #include <xen/interface/vcpu.h>
 #include <xen/interface/memory.h>
+#include <xen/interface/nmi.h>
 #include <xen/interface/xen-mca.h>
 #include <xen/features.h>
 #include <xen/page.h>
@@ -66,6 +67,7 @@
 #include <asm/reboot.h>
 #include <asm/stackprotector.h>
 #include <asm/hypervisor.h>
+#include <asm/mach_traps.h>
 #include <asm/mwait.h>
 #include <asm/pci_x86.h>
 #include <asm/pat.h>
@@ -1351,6 +1353,21 @@ static const struct machine_ops xen_machine_ops __initconst = {
        .emergency_restart = xen_emergency_restart,
 };
+static unsigned char xen_get_nmi_reason(void)
+{
+        unsigned char reason = 0;
+        /* Construct a value which looks like it came from port 0x61. */
+        if (test_bit(_XEN_NMIREASON_io_error,
+                     &HYPERVISOR_shared_info->arch.nmi_reason))
+                reason |= NMI_REASON_IOCHK;
+        if (test_bit(_XEN_NMIREASON_pci_serr,
+                     &HYPERVISOR_shared_info->arch.nmi_reason))
+                reason |= NMI_REASON_SERR;
+        return reason;
+}
 static void __init xen_boot_params_init_edd(void)
 {
 #if IS_ENABLED(CONFIG_EDD)
@@ -1535,9 +1552,12 @@ asmlinkage __visible void __init xen_start_kernel(void)
        pv_info = xen_info;
        pv_init_ops = xen_init_ops;
        pv_apic_ops = xen_apic_ops;
-        if (!xen_pvh_domain())
+        if (!xen_pvh_domain()) {
                pv_cpu_ops = xen_cpu_ops;
+                x86_platform.get_nmi_reason = xen_get_nmi_reason;
+        }
        if (xen_feature(XENFEAT_auto_translated_physmap))
                x86_init.resources.memory_setup = xen_auto_xlated_memory_setup;
        else
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index edbc7a63fd73..70fb5075c901 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -167,10 +167,13 @@ static void * __ref alloc_p2m_page(void)
        return (void *)__get_free_page(GFP_KERNEL | __GFP_REPEAT);
 }
-/* Only to be called in case of a race for a page just allocated! */
+static void __ref free_p2m_page(void *p)
-static void free_p2m_page(void *p)
 {
-        BUG_ON(!slab_is_available());
+        if (unlikely(!slab_is_available())) {
+                free_bootmem((unsigned long)p, PAGE_SIZE);
+                return;
+        }
        free_page((unsigned long)p);
 }
@@ -375,7 +378,7 @@ static void __init xen_rebuild_p2m_list(unsigned long *p2m)
                        p2m_missing_pte : p2m_identity_pte;
                for (i = 0; i < PMDS_PER_MID_PAGE; i++) {
                        pmdp = populate_extra_pmd(
-                                (unsigned long)(p2m + pfn + i * PTRS_PER_PTE));
+                                (unsigned long)(p2m + pfn) + i * PMD_SIZE);
                        set_pmd(pmdp, __pmd(__pa(ptep) | _KERNPG_TABLE));
                }
        }
@@ -436,10 +439,9 @@ EXPORT_SYMBOL_GPL(get_phys_to_machine);
 * a new pmd is to replace p2m_missing_pte or p2m_identity_pte by a individual
 * pmd. In case of PAE/x86-32 there are multiple pmds to allocate!
 */
-static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg)
+static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *pte_pg)
 {
        pte_t *ptechk;
-        pte_t *pteret = ptep;
        pte_t *pte_newpg[PMDS_PER_MID_PAGE];
        pmd_t *pmdp;
        unsigned int level;
@@ -473,8 +475,6 @@ static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg)
                if (ptechk == pte_pg) {
                        set_pmd(pmdp,
                                __pmd(__pa(pte_newpg[i]) | _KERNPG_TABLE));
-                        if (vaddr == (addr & ~(PMD_SIZE - 1)))
-                                pteret = pte_offset_kernel(pmdp, addr);
                        pte_newpg[i] = NULL;
                }
@@ -488,7 +488,7 @@ static pte_t *alloc_p2m_pmd(unsigned long addr, pte_t *ptep, pte_t *pte_pg)
                vaddr += PMD_SIZE;
        }
-        return pteret;
+        return lookup_address(addr, &level);
 }
 /*
@@ -517,7 +517,7 @@ static bool alloc_p2m(unsigned long pfn)
        if (pte_pg == p2m_missing_pte || pte_pg == p2m_identity_pte) {
                /* PMD level is missing, allocate a new one */
-                ptep = alloc_p2m_pmd(addr, ptep, pte_pg);
+                ptep = alloc_p2m_pmd(addr, pte_pg);
                if (!ptep)
                        return false;
        }
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index dfd77dec8e2b..865e56cea7a0 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -140,7 +140,7 @@ static void __init xen_del_extra_mem(u64 start, u64 size)
 unsigned long __ref xen_chk_extra_mem(unsigned long pfn)
 {
        int i;
-        unsigned long addr = PFN_PHYS(pfn);
+        phys_addr_t addr = PFN_PHYS(pfn);
        for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
                if (addr >= xen_extra_mem[i].start &&
@@ -160,6 +160,8 @@ void __init xen_inv_extra_mem(void)
        int i;
        for (i = 0; i < XEN_EXTRA_MEM_MAX_REGIONS; i++) {
+                if (!xen_extra_mem[i].size)
+                        continue;
                pfn_s = PFN_DOWN(xen_extra_mem[i].start);
                pfn_e = PFN_UP(xen_extra_mem[i].start + xen_extra_mem[i].size);
                for (pfn = pfn_s; pfn < pfn_e; pfn++)
@@ -229,15 +231,14 @@ static int __init xen_free_mfn(unsigned long mfn)
 * as a fallback if the remapping fails.
 */
 static void __init xen_set_identity_and_release_chunk(unsigned long start_pfn,
-        unsigned long end_pfn, unsigned long nr_pages, unsigned long *identity,
+        unsigned long end_pfn, unsigned long nr_pages, unsigned long *released)
-        unsigned long *released)
 {
-        unsigned long len = 0;
        unsigned long pfn, end;
        int ret;
        WARN_ON(start_pfn > end_pfn);
+        /* Release pages first. */
        end = min(end_pfn, nr_pages);
        for (pfn = start_pfn; pfn < end; pfn++) {
                unsigned long mfn = pfn_to_mfn(pfn);
@@ -250,16 +251,14 @@ static void __init xen_set_identity_and_release_chunk(unsigned long start_pfn,
                WARN(ret != 1, "Failed to release pfn %lx err=%d\n", pfn, ret);
                if (ret == 1) {
+                        (*released)++;
                        if (!__set_phys_to_machine(pfn, INVALID_P2M_ENTRY))
                                break;
-                        len++;
                } else
                        break;
        }
-        /* Need to release pages first */
+        set_phys_range_identity(start_pfn, end_pfn);
-        *released += len;
-        *identity += set_phys_range_identity(start_pfn, end_pfn);
 }
 /*
@@ -287,7 +286,7 @@ static void __init xen_update_mem_tables(unsigned long pfn, unsigned long mfn)
        }
        /* Update kernel mapping, but not for highmem. */
-        if ((pfn << PAGE_SHIFT) >= __pa(high_memory))
+        if (pfn >= PFN_UP(__pa(high_memory - 1)))
                return;
        if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT),
@@ -318,7 +317,6 @@ static void __init xen_do_set_identity_and_remap_chunk(
        unsigned long ident_pfn_iter, remap_pfn_iter;
        unsigned long ident_end_pfn = start_pfn + size;
        unsigned long left = size;
-        unsigned long ident_cnt = 0;
        unsigned int i, chunk;
        WARN_ON(size == 0);
@@ -347,8 +345,7 @@ static void __init xen_do_set_identity_and_remap_chunk(
                xen_remap_mfn = mfn;
                /* Set identity map */
-                ident_cnt += set_phys_range_identity(ident_pfn_iter,
+                set_phys_range_identity(ident_pfn_iter, ident_pfn_iter + chunk);
-                        ident_pfn_iter + chunk);
                left -= chunk;
        }
@@ -371,7 +368,7 @@ static void __init xen_do_set_identity_and_remap_chunk(
 static unsigned long __init xen_set_identity_and_remap_chunk(
        const struct e820entry *list, size_t map_size, unsigned long start_pfn,
        unsigned long end_pfn, unsigned long nr_pages, unsigned long remap_pfn,
-        unsigned long *identity, unsigned long *released)
+        unsigned long *released, unsigned long *remapped)
 {
        unsigned long pfn;
        unsigned long i = 0;
@@ -386,8 +383,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk(
                /* Do not remap pages beyond the current allocation */
                if (cur_pfn >= nr_pages) {
                        /* Identity map remaining pages */
-                        *identity += set_phys_range_identity(cur_pfn,
+                        set_phys_range_identity(cur_pfn, cur_pfn + size);
-                                cur_pfn + size);
                        break;
                }
                if (cur_pfn + size > nr_pages)
@@ -398,7 +394,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk(
                if (!remap_range_size) {
                        pr_warning("Unable to find available pfn range, not remapping identity pages\n");
                        xen_set_identity_and_release_chunk(cur_pfn,
-                                cur_pfn + left, nr_pages, identity, released);
+                                cur_pfn + left, nr_pages, released);
                        break;
                }
                /* Adjust size to fit in current e820 RAM region */
@@ -410,7 +406,7 @@ static unsigned long __init xen_set_identity_and_remap_chunk(
                /* Update variables to reflect new mappings. */
                i += size;
                remap_pfn += size;
-                *identity += size;
+                *remapped += size;
        }
        /*
@@ -427,13 +423,13 @@ static unsigned long __init xen_set_identity_and_remap_chunk(
 static void __init xen_set_identity_and_remap(
        const struct e820entry *list, size_t map_size, unsigned long nr_pages,
-        unsigned long *released)
+        unsigned long *released, unsigned long *remapped)
 {
        phys_addr_t start = 0;
-        unsigned long identity = 0;
        unsigned long last_pfn = nr_pages;
        const struct e820entry *entry;
        unsigned long num_released = 0;
+        unsigned long num_remapped = 0;
        int i;
        /*
@@ -460,14 +456,14 @@ static void __init xen_set_identity_and_remap(
                                last_pfn = xen_set_identity_and_remap_chunk(
                                                list, map_size, start_pfn,
                                                end_pfn, nr_pages, last_pfn,
-                                                &identity, &num_released);
+                                                &num_released, &num_remapped);
                        start = end;
                }
        }
        *released = num_released;
+        *remapped = num_remapped;
-        pr_info("Set %ld page(s) to 1-1 mapping\n", identity);
        pr_info("Released %ld page(s)\n", num_released);
 }
@@ -586,6 +582,7 @@ char * __init xen_memory_setup(void)
        struct xen_memory_map memmap;
        unsigned long max_pages;
        unsigned long extra_pages = 0;
+        unsigned long remapped_pages;
        int i;
        int op;
@@ -635,9 +632,10 @@ char * __init xen_memory_setup(void)
         * underlying RAM.
         */
        xen_set_identity_and_remap(map, memmap.nr_entries, max_pfn,
-                                   &xen_released_pages);
+                                   &xen_released_pages, &remapped_pages);
        extra_pages += xen_released_pages;
+        extra_pages += remapped_pages;
        /*
         * Clamp the amount of extra memory to a EXTRA_MEM_RATIO
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index f473d268d387..69087341d9ae 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -391,7 +391,7 @@ static const struct clock_event_device *xen_clockevent =
 struct xen_clock_event_device {
        struct clock_event_device evt;
-        char *name;
+        char name[16];
 };
 static DEFINE_PER_CPU(struct xen_clock_event_device, xen_clock_events) = { .evt.irq = -1 };
@@ -420,46 +420,38 @@ void xen_teardown_timer(int cpu)
        if (evt->irq >= 0) {
                unbind_from_irqhandler(evt->irq, NULL);
                evt->irq = -1;
-                kfree(per_cpu(xen_clock_events, cpu).name);
-                per_cpu(xen_clock_events, cpu).name = NULL;
        }
 }
 void xen_setup_timer(int cpu)
 {
-        char *name;
+        struct xen_clock_event_device *xevt = &per_cpu(xen_clock_events, cpu);
-        struct clock_event_device *evt;
+        struct clock_event_device *evt = &xevt->evt;
        int irq;
-        evt = &per_cpu(xen_clock_events, cpu).evt;
        WARN(evt->irq >= 0, "IRQ%d for CPU%d is already allocated\n", evt->irq, cpu);
        if (evt->irq >= 0)
                xen_teardown_timer(cpu);
        printk(KERN_INFO "installing Xen timer for CPU %d\n", cpu);
-        name = kasprintf(GFP_KERNEL, "timer%d", cpu);
+        snprintf(xevt->name, sizeof(xevt->name), "timer%d", cpu);
-        if (!name)
-                name = "<timer kasprintf failed>";
        irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
                                      IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER|
                                      IRQF_FORCE_RESUME|IRQF_EARLY_RESUME,
-                                      name, NULL);
+                                      xevt->name, NULL);
        (void)xen_set_irq_priority(irq, XEN_IRQ_PRIORITY_MAX);
        memcpy(evt, xen_clockevent, sizeof(*evt));
        evt->cpumask = cpumask_of(cpu);
        evt->irq = irq;
-        per_cpu(xen_clock_events, cpu).name = name;
 }
 void xen_setup_cpu_clockevents(void)
 {
-        BUG_ON(preemptible());
        clockevents_register_device(this_cpu_ptr(&xen_clock_events.evt));
 }