diff options
Diffstat (limited to 'arch/arm')
189 files changed, 1416 insertions, 2177 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 3c84006..82dfdea 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -651,6 +651,7 @@ config ARCH_SHMOBILE_LEGACY select ARCH_SHMOBILE select ARM_PATCH_PHYS_VIRT if MMU select CLKDEV_LOOKUP + select CPU_V7 select GENERIC_CLOCKEVENTS select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP @@ -661,6 +662,7 @@ config ARCH_SHMOBILE_LEGACY select NO_IOPORT_MAP select PINCTRL select PM_GENERIC_DOMAINS if PM + select SH_CLK_CPG select SPARSE_IRQ help Support for Renesas ARM SoC platforms using a non-multiplatform diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 295428d..03dc4c1 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1134,6 +1134,7 @@ config DEBUG_UART_PHYS DEBUG_S3C2410_UART2) default 0x78000000 if DEBUG_CNS3XXX default 0x7c0003f8 if FOOTBRIDGE + default 0x78000000 if DEBUG_CNS3XXX default 0x80070000 if DEBUG_IMX23_UART default 0x80074000 if DEBUG_IMX28_UART default 0x80230000 if DEBUG_PICOXCELL_UART diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 320aa57..dceb044 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -157,6 +157,7 @@ machine-$(CONFIG_ARCH_EBSA110) += ebsa110 machine-$(CONFIG_ARCH_EFM32) += efm32 machine-$(CONFIG_ARCH_EP93XX) += ep93xx machine-$(CONFIG_ARCH_EXYNOS) += exynos +machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge machine-$(CONFIG_ARCH_GEMINI) += gemini machine-$(CONFIG_ARCH_HIGHBANK) += highbank machine-$(CONFIG_ARCH_HISI) += hisi @@ -206,7 +207,6 @@ machine-$(CONFIG_ARCH_VEXPRESS) += vexpress machine-$(CONFIG_ARCH_VT8500) += vt8500 machine-$(CONFIG_ARCH_W90X900) += w90x900 machine-$(CONFIG_ARCH_ZYNQ) += zynq -machine-$(CONFIG_FOOTBRIDGE) += footbridge machine-$(CONFIG_PLAT_SPEAR) += spear # Platform directory name. This list is sorted alphanumerically diff --git a/arch/arm/boot/bootp/Makefile b/arch/arm/boot/bootp/Makefile index c394e30..5761f00 100644 --- a/arch/arm/boot/bootp/Makefile +++ b/arch/arm/boot/bootp/Makefile @@ -5,6 +5,8 @@ # architecture-specific flags and dependencies. # +GCOV_PROFILE := n + LDFLAGS_bootp :=-p --no-undefined -X \ --defsym initrd_phys=$(INITRD_PHYS) \ --defsym params_phys=$(PARAMS_PHYS) -T diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 76a50ec..3ea230a 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -37,6 +37,8 @@ ifeq ($(CONFIG_ARM_VIRT_EXT),y) OBJS += hyp-stub.o endif +GCOV_PROFILE := n + # # Architecture dependencies # diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 76fafb6..d3e687e 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -148,8 +148,8 @@ dtb-$(CONFIG_MACH_KIRKWOOD) += kirkwood-b3.dtb \ kirkwood-openrd-client.dtb \ kirkwood-openrd-ultimate.dtb \ kirkwood-rd88f6192.dtb \ - kirkwood-rd88f6281-a0.dtb \ - kirkwood-rd88f6281-a1.dtb \ + kirkwood-rd88f6281-z0.dtb \ + kirkwood-rd88f6281-a.dtb \ kirkwood-rs212.dtb \ kirkwood-rs409.dtb \ kirkwood-rs411.dtb \ diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 7b8e652..24531de 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -804,7 +804,7 @@ usb1: usb@48390000 { compatible = "synopsys,dwc3"; - reg = <0x48390000 0x17000>; + reg = <0x48390000 0x10000>; interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>; phys = <&usb2_phy1>; phy-names = "usb2-phy"; @@ -826,7 +826,7 @@ usb2: usb@483d0000 { compatible = "synopsys,dwc3"; - reg = <0x483d0000 0x17000>; + reg = <0x483d0000 0x10000>; interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>; phys = <&usb2_phy2>; phy-names = "usb2-phy"; diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index 646a6ea..e7ac47f 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -260,7 +260,7 @@ status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&i2c0_pins>; - clock-frequency = <400000>; + clock-frequency = <100000>; tps65218: tps65218@24 { reg = <0x24>; @@ -424,7 +424,7 @@ ranges = <0 0 0 0x01000000>; /* minimum GPMC partition = 16MB */ nand@0,0 { reg = <0 0 4>; /* device IO registers */ - ti,nand-ecc-opt = "bch8"; + ti,nand-ecc-opt = "bch16"; ti,elm-id = <&elm>; nand-bus-width = <8>; gpmc,device-width = <1>; @@ -443,8 +443,6 @@ gpmc,rd-cycle-ns = <40>; gpmc,wr-cycle-ns = <40>; gpmc,wait-pin = <0>; - gpmc,wait-on-read; - gpmc,wait-on-write; gpmc,bus-turnaround-ns = <0>; gpmc,cycle2cycle-delay-ns = <0>; gpmc,clk-activation-ns = <0>; diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts index ed7dd23..ac3e485 100644 --- a/arch/arm/boot/dts/am43x-epos-evm.dts +++ b/arch/arm/boot/dts/am43x-epos-evm.dts @@ -435,13 +435,13 @@ }; &gpmc { - status = "okay"; + status = "okay"; /* Disable QSPI when enabling GPMC (NAND) */ pinctrl-names = "default"; pinctrl-0 = <&nand_flash_x8>; ranges = <0 0 0x08000000 0x10000000>; /* CS0: NAND */ nand@0,0 { reg = <0 0 0>; /* CS0, offset 0 */ - ti,nand-ecc-opt = "bch8"; + ti,nand-ecc-opt = "bch16"; ti,elm-id = <&elm>; nand-bus-width = <8>; gpmc,device-width = <1>; @@ -459,8 +459,7 @@ gpmc,access-ns = <30>; /* tCEA + 4*/ gpmc,rd-cycle-ns = <40>; gpmc,wr-cycle-ns = <40>; - gpmc,wait-on-read = "true"; - gpmc,wait-on-write = "true"; + gpmc,wait-pin = <0>; gpmc,bus-turnaround-ns = <0>; gpmc,cycle2cycle-delay-ns = <0>; gpmc,clk-activation-ns = <0>; @@ -557,7 +556,7 @@ }; &qspi { - status = "okay"; + status = "disabled"; /* Disable GPMC (NAND) when enabling QSPI */ pinctrl-names = "default"; pinctrl-0 = <&qspi1_default>; diff --git a/arch/arm/boot/dts/armada-370-netgear-rn102.dts b/arch/arm/boot/dts/armada-370-netgear-rn102.dts index d6d572e..285524f 100644 --- a/arch/arm/boot/dts/armada-370-netgear-rn102.dts +++ b/arch/arm/boot/dts/armada-370-netgear-rn102.dts @@ -143,6 +143,10 @@ marvell,nand-enable-arbiter; nand-on-flash-bbt; + /* Use Hardware BCH ECC */ + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; + partition@0 { label = "u-boot"; reg = <0x0000000 0x180000>; /* 1.5MB */ diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts index c5fe8b5..4ec1ce5 100644 --- a/arch/arm/boot/dts/armada-370-netgear-rn104.dts +++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts @@ -145,6 +145,10 @@ marvell,nand-enable-arbiter; nand-on-flash-bbt; + /* Use Hardware BCH ECC */ + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; + partition@0 { label = "u-boot"; reg = <0x0000000 0x180000>; /* 1.5MB */ diff --git a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts index 0cf999a..c5ed85a 100644 --- a/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts +++ b/arch/arm/boot/dts/armada-xp-netgear-rn2120.dts @@ -223,6 +223,10 @@ marvell,nand-enable-arbiter; nand-on-flash-bbt; + /* Use Hardware BCH ECC */ + nand-ecc-strength = <4>; + nand-ecc-step-size = <512>; + partition@0 { label = "u-boot"; reg = <0x0000000 0x180000>; /* 1.5MB */ diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi index 65ccf56..6c97d4a 100644 --- a/arch/arm/boot/dts/at91rm9200.dtsi +++ b/arch/arm/boot/dts/at91rm9200.dtsi @@ -149,7 +149,7 @@ usb: usbck { compatible = "atmel,at91rm9200-clk-usb"; #clock-cells = <0>; - atmel,clk-divisors = <1 2>; + atmel,clk-divisors = <1 2 0 0>; clocks = <&pllb>; }; diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi index bb23c2d..5e95a80 100644 --- a/arch/arm/boot/dts/at91sam9263.dtsi +++ b/arch/arm/boot/dts/at91sam9263.dtsi @@ -834,6 +834,7 @@ compatible = "atmel,hsmci"; reg = <0xfff80000 0x600>; interrupts = <10 IRQ_TYPE_LEVEL_HIGH 0>; + pinctrl-names = "default"; #address-cells = <1>; #size-cells = <0>; clocks = <&mci0_clk>; @@ -845,6 +846,7 @@ compatible = "atmel,hsmci"; reg = <0xfff84000 0x600>; interrupts = <11 IRQ_TYPE_LEVEL_HIGH 0>; + pinctrl-names = "default"; #address-cells = <1>; #size-cells = <0>; clocks = <&mci1_clk>; diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi index 31f7652..4e0abbd 100644 --- a/arch/arm/boot/dts/at91sam9g20.dtsi +++ b/arch/arm/boot/dts/at91sam9g20.dtsi @@ -40,6 +40,7 @@ }; pllb: pllbck { + compatible = "atmel,at91sam9g20-clk-pllb"; atmel,clk-input-range = <2000000 32000000>; atmel,pll-clk-output-ranges = <30000000 100000000 0 0>; }; diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index 50f8022..b40cdad 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -8,6 +8,7 @@ /dts-v1/; #include "dra74x.dtsi" +#include <dt-bindings/gpio/gpio.h> / { model = "TI DRA742"; @@ -24,9 +25,29 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; + + vtt_fixed: fixedregulator-vtt { + compatible = "regulator-fixed"; + regulator-name = "vtt_fixed"; + regulator-min-microvolt = <1350000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + enable-active-high; + gpio = <&gpio7 11 GPIO_ACTIVE_HIGH>; + }; }; &dra7_pmx_core { + pinctrl-names = "default"; + pinctrl-0 = <&vtt_pin>; + + vtt_pin: pinmux_vtt_pin { + pinctrl-single,pins = < + 0x3b4 (PIN_OUTPUT | MUX_MODE14) /* spi1_cs1.gpio7_11 */ + >; + }; + i2c1_pins: pinmux_i2c1_pins { pinctrl-single,pins = < 0x400 (PIN_INPUT | MUX_MODE0) /* i2c1_sda */ @@ -43,20 +64,19 @@ i2c3_pins: pinmux_i2c3_pins { pinctrl-single,pins = < - 0x410 (PIN_INPUT | MUX_MODE0) /* i2c3_sda */ - 0x414 (PIN_INPUT | MUX_MODE0) /* i2c3_scl */ + 0x288 (PIN_INPUT | MUX_MODE9) /* gpio6_14.i2c3_sda */ + 0x28c (PIN_INPUT | MUX_MODE9) /* gpio6_15.i2c3_scl */ >; }; mcspi1_pins: pinmux_mcspi1_pins { pinctrl-single,pins = < - 0x3a4 (PIN_INPUT | MUX_MODE0) /* spi2_clk */ - 0x3a8 (PIN_INPUT | MUX_MODE0) /* spi2_d1 */ - 0x3ac (PIN_INPUT | MUX_MODE0) /* spi2_d0 */ - 0x3b0 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs0 */ - 0x3b4 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs1 */ - 0x3b8 (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs2 */ - 0x3bc (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs3 */ + 0x3a4 (PIN_INPUT | MUX_MODE0) /* spi1_sclk */ + 0x3a8 (PIN_INPUT | MUX_MODE0) /* spi1_d1 */ + 0x3ac (PIN_INPUT | MUX_MODE0) /* spi1_d0 */ + 0x3b0 (PIN_INPUT_SLEW | MUX_MODE0) /* spi1_cs0 */ + 0x3b8 (PIN_INPUT_SLEW | MUX_MODE6) /* spi1_cs2.hdmi1_hpd */ + 0x3bc (PIN_INPUT_SLEW | MUX_MODE6) /* spi1_cs3.hdmi1_cec */ >; }; @@ -284,7 +304,7 @@ status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&i2c3_pins>; - clock-frequency = <3400000>; + clock-frequency = <400000>; }; &mcspi1 { @@ -427,22 +447,19 @@ gpmc,device-width = <2>; gpmc,sync-clk-ps = <0>; gpmc,cs-on-ns = <0>; - gpmc,cs-rd-off-ns = <40>; - gpmc,cs-wr-off-ns = <40>; + gpmc,cs-rd-off-ns = <80>; + gpmc,cs-wr-off-ns = <80>; gpmc,adv-on-ns = <0>; - gpmc,adv-rd-off-ns = <30>; - gpmc,adv-wr-off-ns = <30>; - gpmc,we-on-ns = <5>; - gpmc,we-off-ns = <25>; - gpmc,oe-on-ns = <2>; - gpmc,oe-off-ns = <20>; - gpmc,access-ns = <20>; - gpmc,wr-access-ns = <40>; - gpmc,rd-cycle-ns = <40>; - gpmc,wr-cycle-ns = <40>; - gpmc,wait-pin = <0>; - gpmc,wait-on-read; - gpmc,wait-on-write; + gpmc,adv-rd-off-ns = <60>; + gpmc,adv-wr-off-ns = <60>; + gpmc,we-on-ns = <10>; + gpmc,we-off-ns = <50>; + gpmc,oe-on-ns = <4>; + gpmc,oe-off-ns = <40>; + gpmc,access-ns = <40>; + gpmc,wr-access-ns = <80>; + gpmc,rd-cycle-ns = <80>; + gpmc,wr-cycle-ns = <80>; gpmc,bus-turnaround-ns = <0>; gpmc,cycle2cycle-delay-ns = <0>; gpmc,clk-activation-ns = <0>; @@ -483,7 +500,7 @@ reg = <0x001c0000 0x00020000>; }; partition@7 { - label = "NAND.u-boot-env"; + label = "NAND.u-boot-env.backup1"; reg = <0x001e0000 0x00020000>; }; partition@8 { @@ -504,3 +521,8 @@ &usb2_phy2 { phy-supply = <&ldousb_reg>; }; + +&gpio7 { + ti,no-reset-on-init; + ti,no-idle-on-init; +}; diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi index c6c58c1..6b675a0 100644 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@ -423,10 +423,14 @@ status = "disabled"; lvds-channel@0 { + #address-cells = <1>; + #size-cells = <0>; reg = <0>; status = "disabled"; - port { + port@0 { + reg = <0>; + lvds0_in: endpoint { remote-endpoint = <&ipu_di0_lvds0>; }; @@ -434,10 +438,14 @@ }; lvds-channel@1 { + #address-cells = <1>; + #size-cells = <0>; reg = <1>; status = "disabled"; - port { + port@1 { + reg = <1>; + lvds1_in: endpoint { remote-endpoint = <&ipu_di1_lvds1>; }; diff --git a/arch/arm/boot/dts/k2e-clocks.dtsi b/arch/arm/boot/dts/k2e-clocks.dtsi index 598afe9..4773d6a 100644 --- a/arch/arm/boot/dts/k2e-clocks.dtsi +++ b/arch/arm/boot/dts/k2e-clocks.dtsi @@ -40,7 +40,7 @@ clocks { #clock-cells = <0>; compatible = "ti,keystone,psc-clock"; clocks = <&chipclk16>; - clock-output-names = "usb"; + clock-output-names = "usb1"; reg = <0x02350004 0xb00>, <0x02350000 0x400>; reg-names = "control", "domain"; domain-id = <0>; @@ -60,8 +60,8 @@ clocks { #clock-cells = <0>; compatible = "ti,keystone,psc-clock"; clocks = <&chipclk12>; - clock-output-names = "pcie"; - reg = <0x0235006c 0xb00>, <0x02350000 0x400>; + clock-output-names = "pcie1"; + reg = <0x0235006c 0xb00>, <0x02350048 0x400>; reg-names = "control", "domain"; domain-id = <18>; }; diff --git a/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts b/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts index 8f76d28..f82827d 100644 --- a/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts +++ b/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts @@ -123,11 +123,11 @@ dsa@0 { compatible = "marvell,dsa"; - #address-cells = <2>; + #address-cells = <1>; #size-cells = <0>; - dsa,ethernet = <ð0>; - dsa,mii-bus = <ðphy0>; + dsa,ethernet = <ð0port>; + dsa,mii-bus = <&mdio>; switch@0 { #address-cells = <1>; @@ -169,17 +169,13 @@ &mdio { status = "okay"; - - ethphy0: ethernet-phy@ff { - reg = <0xff>; /* No phy attached */ - speed = <1000>; - duplex = <1>; - }; }; ð0 { status = "okay"; + ethernet0-port@0 { - phy-handle = <ðphy0>; + speed = <1000>; + duplex = <1>; }; }; diff --git a/arch/arm/boot/dts/kirkwood-rd88f6281-a.dts b/arch/arm/boot/dts/kirkwood-rd88f6281-a.dts new file mode 100644 index 0000000..f2e08b3 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-rd88f6281-a.dts @@ -0,0 +1,43 @@ +/* + * Marvell RD88F6181 A Board descrition + * + * Andrew Lunn <andrew@lunn.ch> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * This file contains the definitions for the board with the A0 or + * higher stepping of the SoC. The ethernet switch does not have a + * "wan" port. + */ + +/dts-v1/; +#include "kirkwood-rd88f6281.dtsi" + +/ { + model = "Marvell RD88f6281 Reference design, with A0 or higher SoC"; + compatible = "marvell,rd88f6281-a", "marvell,rd88f6281","marvell,kirkwood-88f6281", "marvell,kirkwood"; + + dsa@0 { + switch@0 { + reg = <10 0>; /* MDIO address 10, switch 0 in tree */ + }; + }; +}; + +&mdio { + status = "okay"; + + ethphy1: ethernet-phy@11 { + reg = <11>; + }; +}; + +ð1 { + status = "okay"; + + ethernet1-port@0 { + phy-handle = <ðphy1>; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-rd88f6281-a0.dts b/arch/arm/boot/dts/kirkwood-rd88f6281-a0.dts deleted file mode 100644 index a803bbb..0000000 --- a/arch/arm/boot/dts/kirkwood-rd88f6281-a0.dts +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Marvell RD88F6181 A0 Board descrition - * - * Andrew Lunn <andrew@lunn.ch> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - * - * This file contains the definitions for the board with the A0 variant of - * the SoC. The ethernet switch does not have a "wan" port. - */ - -/dts-v1/; -#include "kirkwood-rd88f6281.dtsi" - -/ { - model = "Marvell RD88f6281 Reference design, with A0 SoC"; - compatible = "marvell,rd88f6281-a0", "marvell,rd88f6281","marvell,kirkwood-88f6281", "marvell,kirkwood"; - - dsa@0 { - switch@0 { - reg = <10 0>; /* MDIO address 10, switch 0 in tree */ - }; - }; -};
\ No newline at end of file diff --git a/arch/arm/boot/dts/kirkwood-rd88f6281-a1.dts b/arch/arm/boot/dts/kirkwood-rd88f6281-z0.dts index baeebbf..f4272b6 100644 --- a/arch/arm/boot/dts/kirkwood-rd88f6281-a1.dts +++ b/arch/arm/boot/dts/kirkwood-rd88f6281-z0.dts @@ -1,5 +1,5 @@ /* - * Marvell RD88F6181 A1 Board descrition + * Marvell RD88F6181 Z0 stepping descrition * * Andrew Lunn <andrew@lunn.ch> * @@ -7,17 +7,17 @@ * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. * - * This file contains the definitions for the board with the A1 variant of - * the SoC. The ethernet switch has a "wan" port. - */ + * This file contains the definitions for the board using the Z0 + * stepping of the SoC. The ethernet switch has a "wan" port. +*/ /dts-v1/; #include "kirkwood-rd88f6281.dtsi" / { - model = "Marvell RD88f6281 Reference design, with A1 SoC"; - compatible = "marvell,rd88f6281-a1", "marvell,rd88f6281","marvell,kirkwood-88f6281", "marvell,kirkwood"; + model = "Marvell RD88f6281 Reference design, with Z0 SoC"; + compatible = "marvell,rd88f6281-z0", "marvell,rd88f6281","marvell,kirkwood-88f6281", "marvell,kirkwood"; dsa@0 { switch@0 { @@ -28,4 +28,8 @@ }; }; }; -};
\ No newline at end of file +}; + +ð1 { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/kirkwood-rd88f6281.dtsi b/arch/arm/boot/dts/kirkwood-rd88f6281.dtsi index 26cf0e0..d195e88 100644 --- a/arch/arm/boot/dts/kirkwood-rd88f6281.dtsi +++ b/arch/arm/boot/dts/kirkwood-rd88f6281.dtsi @@ -37,7 +37,6 @@ ocp@f1000000 { pinctrl: pin-controller@10000 { - pinctrl-0 = <&pmx_sdio_cd>; pinctrl-names = "default"; pmx_sdio_cd: pmx-sdio-cd { @@ -69,8 +68,8 @@ #address-cells = <2>; #size-cells = <0>; - dsa,ethernet = <ð0>; - dsa,mii-bus = <ðphy1>; + dsa,ethernet = <ð0port>; + dsa,mii-bus = <&mdio>; switch@0 { #address-cells = <1>; @@ -119,35 +118,19 @@ }; partition@300000 { - label = "data"; + label = "rootfs"; reg = <0x0300000 0x500000>; }; }; &mdio { status = "okay"; - - ethphy0: ethernet-phy@0 { - reg = <0>; - }; - - ethphy1: ethernet-phy@ff { - reg = <0xff>; /* No PHY attached */ - speed = <1000>; - duple = <1>; - }; }; ð0 { status = "okay"; ethernet0-port@0 { - phy-handle = <ðphy0>; - }; -}; - -ð1 { - status = "okay"; - ethernet1-port@0 { - phy-handle = <ðphy1>; + speed = <1000>; + duplex = <1>; }; }; diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index afc640c..464f09a 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -309,7 +309,7 @@ marvell,tx-checksum-limit = <1600>; status = "disabled"; - ethernet0-port@0 { + eth0port: ethernet0-port@0 { compatible = "marvell,kirkwood-eth-port"; reg = <0>; interrupts = <11>; @@ -342,7 +342,7 @@ pinctrl-names = "default"; status = "disabled"; - ethernet1-port@0 { + eth1port: ethernet1-port@0 { compatible = "marvell,kirkwood-eth-port"; reg = <0>; interrupts = <15>; diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index 1fe45d1..4361777 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -93,7 +93,7 @@ }; tv: connector { - compatible = "composite-connector"; + compatible = "composite-video-connector"; label = "tv"; port { diff --git a/arch/arm/boot/dts/omap3xxx-clocks.dtsi b/arch/arm/boot/dts/omap3xxx-clocks.dtsi index e47ff69..5c37500 100644 --- a/arch/arm/boot/dts/omap3xxx-clocks.dtsi +++ b/arch/arm/boot/dts/omap3xxx-clocks.dtsi @@ -467,6 +467,7 @@ ti,bit-shift = <0x1e>; reg = <0x0d00>; ti,set-bit-to-disable; + ti,set-rate-parent; }; dpll4_m6_ck: dpll4_m6_ck { diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts index b8698ca..429471a 100644 --- a/arch/arm/boot/dts/omap5-cm-t54.dts +++ b/arch/arm/boot/dts/omap5-cm-t54.dts @@ -353,13 +353,12 @@ }; ldo8_reg: ldo8 { - /* VDD_3v0: Does not go anywhere */ + /* VDD_3V_GP: act led/serial console */ regulator-name = "ldo8"; regulator-min-microvolt = <3000000>; regulator-max-microvolt = <3000000>; + regulator-always-on; regulator-boot-on; - /* Unused */ - status = "disabled"; }; ldo9_reg: ldo9 { diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts index 4a2000c..3e97a66 100644 --- a/arch/arm/boot/dts/ste-snowball.dts +++ b/arch/arm/boot/dts/ste-snowball.dts @@ -116,7 +116,6 @@ msp2: msp@80117000 { pinctrl-names = "default"; pinctrl-0 = <&msp2_default_mode>; - status = "okay"; }; msp3: msp@80125000 { diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index 8809917..d86771a 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -1443,14 +1443,14 @@ void edma_assign_channel_eventq(unsigned channel, enum dma_event_q eventq_no) EXPORT_SYMBOL(edma_assign_channel_eventq); static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata, - struct edma *edma_cc) + struct edma *edma_cc, int cc_id) { int i; u32 value, cccfg; s8 (*queue_priority_map)[2]; /* Decode the eDMA3 configuration from CCCFG register */ - cccfg = edma_read(0, EDMA_CCCFG); + cccfg = edma_read(cc_id, EDMA_CCCFG); value = GET_NUM_REGN(cccfg); edma_cc->num_region = BIT(value); @@ -1464,7 +1464,8 @@ static int edma_setup_from_hw(struct device *dev, struct edma_soc_info *pdata, value = GET_NUM_EVQUE(cccfg); edma_cc->num_tc = value + 1; - dev_dbg(dev, "eDMA3 HW configuration (cccfg: 0x%08x):\n", cccfg); + dev_dbg(dev, "eDMA3 CC%d HW configuration (cccfg: 0x%08x):\n", cc_id, + cccfg); dev_dbg(dev, "num_region: %u\n", edma_cc->num_region); dev_dbg(dev, "num_channel: %u\n", edma_cc->num_channels); dev_dbg(dev, "num_slot: %u\n", edma_cc->num_slots); @@ -1684,7 +1685,7 @@ static int edma_probe(struct platform_device *pdev) return -ENOMEM; /* Get eDMA3 configuration from IP */ - ret = edma_setup_from_hw(dev, info[j], edma_cc[j]); + ret = edma_setup_from_hw(dev, info[j], edma_cc[j], j); if (ret) return ret; diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig index 1b650c8..72233b9 100644 --- a/arch/arm/configs/ep93xx_defconfig +++ b/arch/arm/configs/ep93xx_defconfig @@ -107,5 +107,6 @@ CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_USER=y CONFIG_DEBUG_LL=y +CONFIG_DEBUG_LL_UART_PL01X=y # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_LIBCRC32C=y diff --git a/arch/arm/configs/versatile_defconfig b/arch/arm/configs/versatile_defconfig index d52b4ff..ea49d37 100644 --- a/arch/arm/configs/versatile_defconfig +++ b/arch/arm/configs/versatile_defconfig @@ -82,5 +82,6 @@ CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DEBUG_USER=y CONFIG_DEBUG_LL=y +CONFIG_DEBUG_LL_UART_PL01X=y CONFIG_FONTS=y CONFIG_FONT_ACORN_8x8=y diff --git a/arch/arm/crypto/sha1-armv7-neon.S b/arch/arm/crypto/sha1-armv7-neon.S index 50013c0..dcd01f3 100644 --- a/arch/arm/crypto/sha1-armv7-neon.S +++ b/arch/arm/crypto/sha1-armv7-neon.S @@ -9,7 +9,7 @@ */ #include <linux/linkage.h> - +#include <asm/assembler.h> .syntax unified .code 32 @@ -61,13 +61,13 @@ #define RT3 r12 #define W0 q0 -#define W1 q1 +#define W1 q7 #define W2 q2 #define W3 q3 #define W4 q4 -#define W5 q5 -#define W6 q6 -#define W7 q7 +#define W5 q6 +#define W6 q5 +#define W7 q1 #define tmp0 q8 #define tmp1 q9 @@ -79,6 +79,11 @@ #define qK3 q14 #define qK4 q15 +#ifdef CONFIG_CPU_BIG_ENDIAN +#define ARM_LE(code...) +#else +#define ARM_LE(code...) code +#endif /* Round function macros. */ @@ -150,45 +155,45 @@ #define W_PRECALC_00_15() \ add RWK, sp, #(WK_offs(0)); \ \ - vld1.32 {tmp0, tmp1}, [RDATA]!; \ - vrev32.8 W0, tmp0; /* big => little */ \ - vld1.32 {tmp2, tmp3}, [RDATA]!; \ + vld1.32 {W0, W7}, [RDATA]!; \ + ARM_LE(vrev32.8 W0, W0; ) /* big => little */ \ + vld1.32 {W6, W5}, [RDATA]!; \ vadd.u32 tmp0, W0, curK; \ - vrev32.8 W7, tmp1; /* big => little */ \ - vrev32.8 W6, tmp2; /* big => little */ \ + ARM_LE(vrev32.8 W7, W7; ) /* big => little */ \ + ARM_LE(vrev32.8 W6, W6; ) /* big => little */ \ vadd.u32 tmp1, W7, curK; \ - vrev32.8 W5, tmp3; /* big => little */ \ + ARM_LE(vrev32.8 W5, W5; ) /* big => little */ \ vadd.u32 tmp2, W6, curK; \ vst1.32 {tmp0, tmp1}, [RWK]!; \ vadd.u32 tmp3, W5, curK; \ vst1.32 {tmp2, tmp3}, [RWK]; \ #define WPRECALC_00_15_0(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vld1.32 {tmp0, tmp1}, [RDATA]!; \ + vld1.32 {W0, W7}, [RDATA]!; \ #define WPRECALC_00_15_1(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ add RWK, sp, #(WK_offs(0)); \ #define WPRECALC_00_15_2(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vrev32.8 W0, tmp0; /* big => little */ \ + ARM_LE(vrev32.8 W0, W0; ) /* big => little */ \ #define WPRECALC_00_15_3(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vld1.32 {tmp2, tmp3}, [RDATA]!; \ + vld1.32 {W6, W5}, [RDATA]!; \ #define WPRECALC_00_15_4(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ vadd.u32 tmp0, W0, curK; \ #define WPRECALC_00_15_5(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vrev32.8 W7, tmp1; /* big => little */ \ + ARM_LE(vrev32.8 W7, W7; ) /* big => little */ \ #define WPRECALC_00_15_6(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vrev32.8 W6, tmp2; /* big => little */ \ + ARM_LE(vrev32.8 W6, W6; ) /* big => little */ \ #define WPRECALC_00_15_7(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ vadd.u32 tmp1, W7, curK; \ #define WPRECALC_00_15_8(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ - vrev32.8 W5, tmp3; /* big => little */ \ + ARM_LE(vrev32.8 W5, W5; ) /* big => little */ \ #define WPRECALC_00_15_9(i,W,W_m04,W_m08,W_m12,W_m16,W_m20,W_m24,W_m28) \ vadd.u32 tmp2, W6, curK; \ diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 79ecb4f..10e78d0 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -466,6 +466,7 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size) */ #define v7_exit_coherency_flush(level) \ asm volatile( \ + ".arch armv7-a \n\t" \ "stmfd sp!, {fp, ip} \n\t" \ "mrc p15, 0, r0, c1, c0, 0 @ get SCTLR \n\t" \ "bic r0, r0, #"__stringify(CR_C)" \n\t" \ diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h index 39eb16b..bfe2a2f 100644 --- a/arch/arm/include/asm/ftrace.h +++ b/arch/arm/include/asm/ftrace.h @@ -45,7 +45,7 @@ void *return_address(unsigned int); #else -extern inline void *return_address(unsigned int level) +static inline void *return_address(unsigned int level) { return NULL; } diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h index 69b7469..b9db269 100644 --- a/arch/arm/include/asm/kvm_emulate.h +++ b/arch/arm/include/asm/kvm_emulate.h @@ -149,6 +149,11 @@ static inline bool kvm_vcpu_trap_is_iabt(struct kvm_vcpu *vcpu) static inline u8 kvm_vcpu_trap_get_fault(struct kvm_vcpu *vcpu) { + return kvm_vcpu_get_hsr(vcpu) & HSR_FSC; +} + +static inline u8 kvm_vcpu_trap_get_fault_type(struct kvm_vcpu *vcpu) +{ return kvm_vcpu_get_hsr(vcpu) & HSR_FSC_TYPE; } diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 6dfb404..53036e2 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -19,6 +19,8 @@ #ifndef __ARM_KVM_HOST_H__ #define __ARM_KVM_HOST_H__ +#include <linux/types.h> +#include <linux/kvm_types.h> #include <asm/kvm.h> #include <asm/kvm_asm.h> #include <asm/kvm_mmio.h> @@ -40,9 +42,8 @@ #include <kvm/arm_vgic.h> -struct kvm_vcpu; u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode); -int kvm_target_cpu(void); +int __attribute_const__ kvm_target_cpu(void); int kvm_reset_vcpu(struct kvm_vcpu *vcpu); void kvm_reset_coprocs(struct kvm_vcpu *vcpu); @@ -149,20 +150,17 @@ struct kvm_vcpu_stat { u32 halt_wakeup; }; -struct kvm_vcpu_init; int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, const struct kvm_vcpu_init *init); int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init); unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); -struct kvm_one_reg; int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); u64 kvm_call_hyp(void *hypfn, ...); void force_vm_exit(const cpumask_t *mask); #define KVM_ARCH_WANT_MMU_NOTIFIER -struct kvm; int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end); @@ -172,7 +170,8 @@ unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu); int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices); /* We do not have shadow page tables, hence the empty hooks */ -static inline int kvm_age_hva(struct kvm *kvm, unsigned long hva) +static inline int kvm_age_hva(struct kvm *kvm, unsigned long start, + unsigned long end) { return 0; } @@ -182,12 +181,16 @@ static inline int kvm_test_age_hva(struct kvm *kvm, unsigned long hva) return 0; } +static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm, + unsigned long address) +{ +} + struct kvm_vcpu *kvm_arm_get_running_vcpu(void); struct kvm_vcpu __percpu **kvm_get_running_vcpus(void); int kvm_arm_copy_coproc_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); unsigned long kvm_arm_num_coproc_regs(struct kvm_vcpu *vcpu); -struct kvm_one_reg; int kvm_arm_coproc_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *); int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *); @@ -233,4 +236,10 @@ static inline void vgic_arch_setup(const struct vgic_params *vgic) int kvm_perf_init(void); int kvm_perf_teardown(void); +static inline void kvm_arch_hardware_disable(void) {} +static inline void kvm_arch_hardware_unsetup(void) {} +static inline void kvm_arch_sync_events(struct kvm *kvm) {} +static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {} +static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} + #endif /* __ARM_KVM_HOST_H__ */ diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index 5cc0b0f..3f688b4 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -78,17 +78,6 @@ static inline void kvm_set_pte(pte_t *pte, pte_t new_pte) flush_pmd_entry(pte); } -static inline bool kvm_is_write_fault(unsigned long hsr) -{ - unsigned long hsr_ec = hsr >> HSR_EC_SHIFT; - if (hsr_ec == HSR_EC_IABT) - return false; - else if ((hsr & HSR_ISV) && !(hsr & HSR_WNR)) - return false; - else - return true; -} - static inline void kvm_clean_pgd(pgd_t *pgd) { clean_dcache_area(pgd, PTRS_PER_S2_PGD * sizeof(pgd_t)); diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h index 2ec765c..18f5a55 100644 --- a/arch/arm/include/asm/smp.h +++ b/arch/arm/include/asm/smp.h @@ -49,12 +49,6 @@ extern void smp_init_cpus(void); extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int)); /* - * Boot a secondary CPU, and assign it the specified idle task. - * This also gives us the initial stack to use for this CPU. - */ -extern int boot_secondary(unsigned int cpu, struct task_struct *); - -/* * Called from platform specific assembly code, this is the * secondary CPU entry point. */ diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index 4651f69..e86c985 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -63,8 +63,8 @@ static inline void syscall_get_arguments(struct task_struct *task, if (i + n > SYSCALL_MAX_ARGS) { unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); + pr_warn("%s called with max args %d, handling only %d\n", + __func__, i + n, SYSCALL_MAX_ARGS); memset(args_bad, 0, n_bad * sizeof(args[0])); n = SYSCALL_MAX_ARGS - i; } @@ -88,8 +88,8 @@ static inline void syscall_set_arguments(struct task_struct *task, return; if (i + n > SYSCALL_MAX_ARGS) { - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); + pr_warn("%s called with max args %d, handling only %d\n", + __func__, i + n, SYSCALL_MAX_ARGS); n = SYSCALL_MAX_ARGS - i; } diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h index 83259b8..5f833f7 100644 --- a/arch/arm/include/asm/tls.h +++ b/arch/arm/include/asm/tls.h @@ -1,6 +1,9 @@ #ifndef __ASMARM_TLS_H #define __ASMARM_TLS_H +#include <linux/compiler.h> +#include <asm/thread_info.h> + #ifdef __ASSEMBLY__ #include <asm/asm-offsets.h> .macro switch_tls_none, base, tp, tpuser, tmp1, tmp2 @@ -50,6 +53,49 @@ #endif #ifndef __ASSEMBLY__ + +static inline void set_tls(unsigned long val) +{ + struct thread_info *thread; + + thread = current_thread_info(); + + thread->tp_value[0] = val; + + /* + * This code runs with preemption enabled and therefore must + * be reentrant with respect to switch_tls. + * + * We need to ensure ordering between the shadow state and the + * hardware state, so that we don't corrupt the hardware state + * with a stale shadow state during context switch. + * + * If we're preempted here, switch_tls will load TPIDRURO from + * thread_info upon resuming execution and the following mcr + * is merely redundant. + */ + barrier(); + + if (!tls_emu) { + if (has_tls_reg) { + asm("mcr p15, 0, %0, c13, c0, 3" + : : "r" (val)); + } else { +#ifdef CONFIG_KUSER_HELPERS + /* + * User space must never try to access this + * directly. Expect your app to break + * eventually if you do so. The user helper + * at 0xffff0fe0 must be used instead. (see + * entry-armv.S for details) + */ + *((unsigned int *)0xffff0ff0) = val; +#endif + } + + } +} + static inline unsigned long get_tpuser(void) { unsigned long reg = 0; @@ -59,5 +105,23 @@ static inline unsigned long get_tpuser(void) return reg; } + +static inline void set_tpuser(unsigned long val) +{ + /* Since TPIDRURW is fully context-switched (unlike TPIDRURO), + * we need not update thread_info. + */ + if (has_tls_reg && !tls_emu) { + asm("mcr p15, 0, %0, c13, c0, 2" + : : "r" (val)); + } +} + +static inline void flush_tls(void) +{ + set_tls(0); + set_tpuser(0); +} + #endif #endif /* __ASMARM_TLS_H */ diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index a4cd7af..4767eb9 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -107,8 +107,11 @@ static inline void set_fs(mm_segment_t fs) extern int __get_user_1(void *); extern int __get_user_2(void *); extern int __get_user_4(void *); -extern int __get_user_lo8(void *); +extern int __get_user_32t_8(void *); extern int __get_user_8(void *); +extern int __get_user_64t_1(void *); +extern int __get_user_64t_2(void *); +extern int __get_user_64t_4(void *); #define __GUP_CLOBBER_1 "lr", "cc" #ifdef CONFIG_CPU_USE_DOMAINS @@ -117,7 +120,7 @@ extern int __get_user_8(void *); #define __GUP_CLOBBER_2 "lr", "cc" #endif #define __GUP_CLOBBER_4 "lr", "cc" -#define __GUP_CLOBBER_lo8 "lr", "cc" +#define __GUP_CLOBBER_32t_8 "lr", "cc" #define __GUP_CLOBBER_8 "lr", "cc" #define __get_user_x(__r2,__p,__e,__l,__s) \ @@ -131,12 +134,30 @@ extern int __get_user_8(void *); /* narrowing a double-word get into a single 32bit word register: */ #ifdef __ARMEB__ -#define __get_user_xb(__r2, __p, __e, __l, __s) \ - __get_user_x(__r2, __p, __e, __l, lo8) +#define __get_user_x_32t(__r2, __p, __e, __l, __s) \ + __get_user_x(__r2, __p, __e, __l, 32t_8) #else -#define __get_user_xb __get_user_x +#define __get_user_x_32t __get_user_x #endif +/* + * storing result into proper least significant word of 64bit target var, + * different only for big endian case where 64 bit __r2 lsw is r3: + */ +#ifdef __ARMEB__ +#define __get_user_x_64t(__r2, __p, __e, __l, __s) \ + __asm__ __volatile__ ( \ + __asmeq("%0", "r0") __asmeq("%1", "r2") \ + __asmeq("%3", "r1") \ + "bl __get_user_64t_" #__s \ + : "=&r" (__e), "=r" (__r2) \ + : "0" (__p), "r" (__l) \ + : __GUP_CLOBBER_##__s) +#else +#define __get_user_x_64t __get_user_x +#endif + + #define __get_user_check(x,p) \ ({ \ unsigned long __limit = current_thread_info()->addr_limit - 1; \ @@ -146,17 +167,26 @@ extern int __get_user_8(void *); register int __e asm("r0"); \ switch (sizeof(*(__p))) { \ case 1: \ - __get_user_x(__r2, __p, __e, __l, 1); \ + if (sizeof((x)) >= 8) \ + __get_user_x_64t(__r2, __p, __e, __l, 1); \ + else \ + __get_user_x(__r2, __p, __e, __l, 1); \ break; \ case 2: \ - __get_user_x(__r2, __p, __e, __l, 2); \ + if (sizeof((x)) >= 8) \ + __get_user_x_64t(__r2, __p, __e, __l, 2); \ + else \ + __get_user_x(__r2, __p, __e, __l, 2); \ break; \ case 4: \ - __get_user_x(__r2, __p, __e, __l, 4); \ + if (sizeof((x)) >= 8) \ + __get_user_x_64t(__r2, __p, __e, __l, 4); \ + else \ + __get_user_x(__r2, __p, __e, __l, 4); \ break; \ case 8: \ if (sizeof((x)) < 8) \ - __get_user_xb(__r2, __p, __e, __l, 4); \ + __get_user_x_32t(__r2, __p, __e, __l, 4); \ else \ __get_user_x(__r2, __p, __e, __l, 8); \ break; \ diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h index 1109017..e8275ea 100644 --- a/arch/arm/include/asm/xen/page-coherent.h +++ b/arch/arm/include/asm/xen/page-coherent.h @@ -26,25 +26,14 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page, __generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs); } -static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, +void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) -{ - if (__generic_dma_ops(hwdev)->unmap_page) - __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs); -} + struct dma_attrs *attrs); -static inline void xen_dma_sync_single_for_cpu(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir) -{ - if (__generic_dma_ops(hwdev)->sync_single_for_cpu) - __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir); -} +void xen_dma_sync_single_for_cpu(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir); + +void xen_dma_sync_single_for_device(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir); -static inline void xen_dma_sync_single_for_device(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir) -{ - if (__generic_dma_ops(hwdev)->sync_single_for_device) - __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); -} #endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */ diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h index ded062f..135c24a 100644 --- a/arch/arm/include/asm/xen/page.h +++ b/arch/arm/include/asm/xen/page.h @@ -33,7 +33,6 @@ typedef struct xpaddr { #define INVALID_P2M_ENTRY (~0UL) unsigned long __pfn_to_mfn(unsigned long pfn); -unsigned long __mfn_to_pfn(unsigned long mfn); extern struct rb_root phys_to_mach; static inline unsigned long pfn_to_mfn(unsigned long pfn) @@ -51,14 +50,6 @@ static inline unsigned long pfn_to_mfn(unsigned long pfn) static inline unsigned long mfn_to_pfn(unsigned long mfn) { - unsigned long pfn; - - if (phys_to_mach.rb_node != NULL) { - pfn = __mfn_to_pfn(mfn); - if (pfn != INVALID_P2M_ENTRY) - return pfn; - } - return mfn; } diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h index e6ebdd3..09ee408 100644 --- a/arch/arm/include/uapi/asm/kvm.h +++ b/arch/arm/include/uapi/asm/kvm.h @@ -25,6 +25,7 @@ #define __KVM_HAVE_GUEST_DEBUG #define __KVM_HAVE_IRQ_LINE +#define __KVM_HAVE_READONLY_MEM #define KVM_REG_SIZE(id) \ (1U << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT)) @@ -173,6 +174,7 @@ struct kvm_arch_memory_slot { #define KVM_DEV_ARM_VGIC_CPUID_MASK (0xffULL << KVM_DEV_ARM_VGIC_CPUID_SHIFT) #define KVM_DEV_ARM_VGIC_OFFSET_SHIFT 0 #define KVM_DEV_ARM_VGIC_OFFSET_MASK (0xffffffffULL << KVM_DEV_ARM_VGIC_OFFSET_SHIFT) +#define KVM_DEV_ARM_VGIC_GRP_NR_IRQS 3 /* KVM_IRQ_LINE irq field index values */ #define KVM_ARM_IRQ_TYPE_SHIFT 24 diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c index f7b450f..a88671c 100644 --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -98,6 +98,14 @@ EXPORT_SYMBOL(__clear_user); EXPORT_SYMBOL(__get_user_1); EXPORT_SYMBOL(__get_user_2); EXPORT_SYMBOL(__get_user_4); +EXPORT_SYMBOL(__get_user_8); + +#ifdef __ARMEB__ +EXPORT_SYMBOL(__get_user_64t_1); +EXPORT_SYMBOL(__get_user_64t_2); +EXPORT_SYMBOL(__get_user_64t_4); +EXPORT_SYMBOL(__get_user_32t_8); +#endif EXPORT_SYMBOL(__put_user_1); EXPORT_SYMBOL(__put_user_2); diff --git a/arch/arm/kernel/atags_parse.c b/arch/arm/kernel/atags_parse.c index 7807ef5..528f8af 100644 --- a/arch/arm/kernel/atags_parse.c +++ b/arch/arm/kernel/atags_parse.c @@ -130,7 +130,7 @@ static int __init parse_tag_cmdline(const struct tag *tag) strlcat(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); #elif defined(CONFIG_CMDLINE_FORCE) - pr_warning("Ignoring tag cmdline (using the default kernel command line)\n"); + pr_warn("Ignoring tag cmdline (using the default kernel command line)\n"); #else strlcpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 36276cd..2f5555d 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -146,7 +146,7 @@ ENDPROC(__und_invalid) #define SPFIX(code...) #endif - .macro svc_entry, stack_hole=0 + .macro svc_entry, stack_hole=0, trace=1 UNWIND(.fnstart ) UNWIND(.save {r0 - pc} ) sub sp, sp, #(S_FRAME_SIZE + \stack_hole - 4) @@ -182,9 +182,11 @@ ENDPROC(__und_invalid) @ stmia r7, {r2 - r6} + .if \trace #ifdef CONFIG_TRACE_IRQFLAGS bl trace_hardirqs_off #endif + .endif .endm .align 5 @@ -295,6 +297,15 @@ __pabt_svc: ENDPROC(__pabt_svc) .align 5 +__fiq_svc: + svc_entry trace=0 + mov r0, sp @ struct pt_regs *regs + bl handle_fiq_as_nmi + svc_exit_via_fiq + UNWIND(.fnend ) +ENDPROC(__fiq_svc) + + .align 5 .LCcralign: .word cr_alignment #ifdef MULTI_DABORT @@ -305,6 +316,46 @@ ENDPROC(__pabt_svc) .word fp_enter /* + * Abort mode handlers + */ + +@ +@ Taking a FIQ in abort mode is similar to taking a FIQ in SVC mode +@ and reuses the same macros. However in abort mode we must also +@ save/restore lr_abt and spsr_abt to make nested aborts safe. +@ + .align 5 +__fiq_abt: + svc_entry trace=0 + + ARM( msr cpsr_c, #ABT_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( mov r0, #ABT_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( msr cpsr_c, r0 ) + mov r1, lr @ Save lr_abt + mrs r2, spsr @ Save spsr_abt, abort is now safe + ARM( msr cpsr_c, #SVC_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( mov r0, #SVC_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( msr cpsr_c, r0 ) + stmfd sp!, {r1 - r2} + + add r0, sp, #8 @ struct pt_regs *regs + bl handle_fiq_as_nmi + + ldmfd sp!, {r1 - r2} + ARM( msr cpsr_c, #ABT_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( mov r0, #ABT_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( msr cpsr_c, r0 ) + mov lr, r1 @ Restore lr_abt, abort is unsafe + msr spsr_cxsf, r2 @ Restore spsr_abt + ARM( msr cpsr_c, #SVC_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( mov r0, #SVC_MODE | PSR_I_BIT | PSR_F_BIT ) + THUMB( msr cpsr_c, r0 ) + + svc_exit_via_fiq + UNWIND(.fnend ) +ENDPROC(__fiq_abt) + +/* * User mode handlers * * EABI note: sp_svc is always 64-bit aligned here, so should S_FRAME_SIZE @@ -314,13 +365,16 @@ ENDPROC(__pabt_svc) #error "sizeof(struct pt_regs) must be a multiple of 8" #endif - .macro usr_entry + .macro usr_entry, trace=1 UNWIND(.fnstart ) UNWIND(.cantunwind ) @ don't unwind the user space sub sp, sp, #S_FRAME_SIZE ARM( stmib sp, {r1 - r12} ) THUMB( stmia sp, {r0 - r12} ) + ATRAP( mrc p15, 0, r7, c1, c0, 0) + ATRAP( ldr r8, .LCcralign) + ldmia r0, {r3 - r5} add r0, sp, #S_PC @ here for interlock avoidance mov r6, #-1 @ "" "" "" "" @@ -328,6 +382,8 @@ ENDPROC(__pabt_svc) str r3, [sp] @ save the "real" r0 copied @ from the exception stack + ATRAP( ldr r8, [r8, #0]) + @ @ We are now ready to fill in the remaining blanks on the stack: @ @@ -341,20 +397,21 @@ ENDPROC(__pabt_svc) ARM( stmdb r0, {sp, lr}^ ) THUMB( store_user_sp_lr r0, r1, S_SP - S_PC ) - @ @ Enable the alignment trap while in kernel mode - @ - alignment_trap r0, .LCcralign + ATRAP( teq r8, r7) + ATRAP( mcrne p15, 0, r8, c1, c0, 0) @ @ Clear FP to mark the first stack frame @ zero_fp + .if \trace #ifdef CONFIG_IRQSOFF_TRACER bl trace_hardirqs_off #endif ct_user_exit save = 0 + .endif .endm .macro kuser_cmpxchg_check @@ -683,6 +740,17 @@ ENTRY(ret_from_exception) ENDPROC(__pabt_usr) ENDPROC(ret_from_exception) + .align 5 +__fiq_usr: + usr_entry trace=0 + kuser_cmpxchg_check + mov r0, sp @ struct pt_regs *regs + bl handle_fiq_as_nmi + get_thread_info tsk + restore_user_regs fast = 0, offset = 0 + UNWIND(.fnend ) +ENDPROC(__fiq_usr) + /* * Register switch for ARMv3 and ARMv4 processors * r0 = previous task_struct, r1 = previous thread_info, r2 = next thread_info @@ -1118,17 +1186,29 @@ vector_addrexcptn: b vector_addrexcptn /*============================================================================= - * Undefined FIQs + * FIQ "NMI" handler *----------------------------------------------------------------------------- - * Enter in FIQ mode, spsr = ANY CPSR, lr = ANY PC - * MUST PRESERVE SVC SPSR, but need to switch to SVC mode to show our msg. - * Basically to switch modes, we *HAVE* to clobber one register... brain - * damage alert! I don't think that we can execute any code in here in any - * other mode than FIQ... Ok you can switch to another mode, but you can't - * get out of that mode without clobbering one register. + * Handle a FIQ using the SVC stack allowing FIQ act like NMI on x86 + * systems. */ -vector_fiq: - subs pc, lr, #4 + vector_stub fiq, FIQ_MODE, 4 + + .long __fiq_usr @ 0 (USR_26 / USR_32) + .long __fiq_svc @ 1 (FIQ_26 / FIQ_32) + .long __fiq_svc @ 2 (IRQ_26 / IRQ_32) + .long __fiq_svc @ 3 (SVC_26 / SVC_32) + .long __fiq_svc @ 4 + .long __fiq_svc @ 5 + .long __fiq_svc @ 6 + .long __fiq_abt @ 7 + .long __fiq_svc @ 8 + .long __fiq_svc @ 9 + .long __fiq_svc @ a + .long __fiq_svc @ b + .long __fiq_svc @ c + .long __fiq_svc @ d + .long __fiq_svc @ e + .long __fiq_svc @ f .globl vector_fiq_offset .equ vector_fiq_offset, vector_fiq diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index e52fe5a..6bb09d4 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -366,7 +366,7 @@ ENTRY(vector_swi) str r0, [sp, #S_OLD_R0] @ Save OLD_R0 #endif zero_fp - alignment_trap ip, __cr_alignment + alignment_trap r10, ip, __cr_alignment enable_irq ct_user_exit get_thread_info tsk diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S index 2fdf867..4176df7 100644 --- a/arch/arm/kernel/entry-header.S +++ b/arch/arm/kernel/entry-header.S @@ -37,11 +37,19 @@ #endif .endm - .macro alignment_trap, rtemp, label #ifdef CONFIG_ALIGNMENT_TRAP - ldr \rtemp, \label - ldr \rtemp, [\rtemp] - mcr p15, 0, \rtemp, c1, c0 +#define ATRAP(x...) x +#else +#define ATRAP(x...) +#endif + + .macro alignment_trap, rtmp1, rtmp2, label +#ifdef CONFIG_ALIGNMENT_TRAP + mrc p15, 0, \rtmp2, c1, c0, 0 + ldr \rtmp1, \label + ldr \rtmp1, [\rtmp1] + teq \rtmp1, \rtmp2 + mcrne p15, 0, \rtmp1, c1, c0, 0 #endif .endm @@ -216,6 +224,34 @@ ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr .endm + @ + @ svc_exit_via_fiq - like svc_exit but switches to FIQ mode before exit + @ + @ This macro acts in a similar manner to svc_exit but switches to FIQ + @ mode to restore the final part of the register state. + @ + @ We cannot use the normal svc_exit procedure because that would + @ clobber spsr_svc (FIQ could be delivered during the first few + @ instructions of vector_swi meaning its contents have not been + @ saved anywhere). + @ + @ Note that, unlike svc_exit, this macro also does not allow a caller + @ supplied rpsr. This is because the FIQ exceptions are not re-entrant + @ and the handlers cannot call into the scheduler (meaning the value + @ on the stack remains correct). + @ + .macro svc_exit_via_fiq + mov r0, sp + ldmib r0, {r1 - r14} @ abort is deadly from here onward (it will + @ clobber state restored below) + msr cpsr_c, #FIQ_MODE | PSR_I_BIT | PSR_F_BIT + add r8, r0, #S_PC + ldr r9, [r0, #S_PSR] + msr spsr_cxsf, r9 + ldr r0, [r0, #S_R0] + ldmia r8, {pc}^ + .endm + .macro restore_user_regs, fast = 0, offset = 0 ldr r1, [sp, #\offset + S_PSR] @ get calling cpsr ldr lr, [sp, #\offset + S_PC]! @ get pc @@ -267,6 +303,25 @@ rfeia sp! .endm + @ + @ svc_exit_via_fiq - like svc_exit but switches to FIQ mode before exit + @ + @ For full details see non-Thumb implementation above. + @ + .macro svc_exit_via_fiq + add r0, sp, #S_R2 + ldr lr, [sp, #S_LR] + ldr sp, [sp, #S_SP] @ abort is deadly from here onward (it will + @ clobber state restored below) + ldmia r0, {r2 - r12} + mov r1, #FIQ_MODE | PSR_I_BIT | PSR_F_BIT + msr cpsr_c, r1 + sub r0, #S_R2 + add r8, r0, #S_PC + ldmia r0, {r0 - r1} + rfeia r8 + .endm + #ifdef CONFIG_CPU_V7M /* * Note we don't need to do clrex here as clearing the local monitor is diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c index 918875d..b37752a 100644 --- a/arch/arm/kernel/fiq.c +++ b/arch/arm/kernel/fiq.c @@ -52,7 +52,8 @@ (unsigned)&vector_fiq_offset; \ }) -static unsigned long no_fiq_insn; +static unsigned long dfl_fiq_insn; +static struct pt_regs dfl_fiq_regs; /* Default reacquire function * - we always relinquish FIQ control @@ -60,8 +61,15 @@ static unsigned long no_fiq_insn; */ static int fiq_def_op(void *ref, int relinquish) { - if (!relinquish) - set_fiq_handler(&no_fiq_insn, sizeof(no_fiq_insn)); + if (!relinquish) { + /* Restore default handler and registers */ + local_fiq_disable(); + set_fiq_regs(&dfl_fiq_regs); + set_fiq_handler(&dfl_fiq_insn, sizeof(dfl_fiq_insn)); + local_fiq_enable(); + + /* FIXME: notify irq controller to standard enable FIQs */ + } return 0; } @@ -150,6 +158,7 @@ EXPORT_SYMBOL(disable_fiq); void __init init_FIQ(int start) { unsigned offset = FIQ_OFFSET; - no_fiq_insn = *(unsigned long *)(0xffff0000 + offset); + dfl_fiq_insn = *(unsigned long *)(0xffff0000 + offset); + get_fiq_regs(&dfl_fiq_regs); fiq_start = start; } diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c index 4d963fb..b5b452f 100644 --- a/arch/arm/kernel/hw_breakpoint.c +++ b/arch/arm/kernel/hw_breakpoint.c @@ -113,8 +113,8 @@ static u32 read_wb_reg(int n) GEN_READ_WB_REG_CASES(ARM_OP2_WVR, val); GEN_READ_WB_REG_CASES(ARM_OP2_WCR, val); default: - pr_warning("attempt to read from unknown breakpoint " - "register %d\n", n); + pr_warn("attempt to read from unknown breakpoint register %d\n", + n); } return val; @@ -128,8 +128,8 @@ static void write_wb_reg(int n, u32 val) GEN_WRITE_WB_REG_CASES(ARM_OP2_WVR, val); GEN_WRITE_WB_REG_CASES(ARM_OP2_WCR, val); default: - pr_warning("attempt to write to unknown breakpoint " - "register %d\n", n); + pr_warn("attempt to write to unknown breakpoint register %d\n", + n); } isb(); } @@ -292,7 +292,7 @@ int hw_breakpoint_slots(int type) case TYPE_DATA: return get_num_wrps(); default: - pr_warning("unknown slot type: %d\n", type); + pr_warn("unknown slot type: %d\n", type); return 0; } } @@ -365,7 +365,7 @@ int arch_install_hw_breakpoint(struct perf_event *bp) } if (i == max_slots) { - pr_warning("Can't find any breakpoint slot\n"); + pr_warn("Can't find any breakpoint slot\n"); return -EBUSY; } @@ -417,7 +417,7 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp) } if (i == max_slots) { - pr_warning("Can't find any breakpoint slot\n"); + pr_warn("Can't find any breakpoint slot\n"); return; } @@ -894,8 +894,8 @@ static int debug_reg_trap(struct pt_regs *regs, unsigned int instr) { int cpu = smp_processor_id(); - pr_warning("Debug register access (0x%x) caused undefined instruction on CPU %d\n", - instr, cpu); + pr_warn("Debug register access (0x%x) caused undefined instruction on CPU %d\n", + instr, cpu); /* Set the error flag for this CPU and skip the faulting instruction. */ cpumask_set_cpu(cpu, &debug_err_mask); diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index 2c42576..88de943 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c @@ -175,7 +175,7 @@ static bool migrate_one_irq(struct irq_desc *desc) c = irq_data_get_irq_chip(d); if (!c->irq_set_affinity) pr_debug("IRQ%u: unable to set affinity\n", d->irq); - else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret) + else if (c->irq_set_affinity(d, affinity, false) == IRQ_SET_MASK_OK && ret) cpumask_copy(d->affinity, affinity); return ret; @@ -205,8 +205,8 @@ void migrate_irqs(void) raw_spin_unlock(&desc->lock); if (affinity_broken && printk_ratelimit()) - pr_warning("IRQ%u no longer affine to CPU%u\n", i, - smp_processor_id()); + pr_warn("IRQ%u no longer affine to CPU%u\n", + i, smp_processor_id()); } local_irq_restore(flags); diff --git a/arch/arm/kernel/kprobes-test.c b/arch/arm/kernel/kprobes-test.c index 08d7312..b206d77 100644 --- a/arch/arm/kernel/kprobes-test.c +++ b/arch/arm/kernel/kprobes-test.c @@ -110,10 +110,13 @@ * * @ TESTCASE_START * bl __kprobes_test_case_start - * @ start of inline data... + * .pushsection .rodata + * "10: * .ascii "mov r0, r7" @ text title for test case * .byte 0 - * .align 2, 0 + * .popsection + * @ start of inline data... + * .word 10b @ pointer to title in .rodata section * * @ TEST_ARG_REG * .byte ARG_TYPE_REG @@ -971,7 +974,7 @@ void __naked __kprobes_test_case_start(void) __asm__ __volatile__ ( "stmdb sp!, {r4-r11} \n\t" "sub sp, sp, #"__stringify(TEST_MEMORY_SIZE)"\n\t" - "bic r0, lr, #1 @ r0 = inline title string \n\t" + "bic r0, lr, #1 @ r0 = inline data \n\t" "mov r1, sp \n\t" "bl kprobes_test_case_start \n\t" "bx r0 \n\t" @@ -1349,15 +1352,14 @@ static unsigned long next_instruction(unsigned long pc) return pc + 4; } -static uintptr_t __used kprobes_test_case_start(const char *title, void *stack) +static uintptr_t __used kprobes_test_case_start(const char **title, void *stack) { struct test_arg *args; struct test_arg_end *end_arg; unsigned long test_code; - args = (struct test_arg *)PTR_ALIGN(title + strlen(title) + 1, 4); - - current_title = title; + current_title = *title++; + args = (struct test_arg *)title; current_args = args; current_stack = stack; diff --git a/arch/arm/kernel/kprobes-test.h b/arch/arm/kernel/kprobes-test.h index eecc90a..4430990 100644 --- a/arch/arm/kernel/kprobes-test.h +++ b/arch/arm/kernel/kprobes-test.h @@ -111,11 +111,14 @@ struct test_arg_end { #define TESTCASE_START(title) \ __asm__ __volatile__ ( \ "bl __kprobes_test_case_start \n\t" \ + ".pushsection .rodata \n\t" \ + "10: \n\t" \ /* don't use .asciz here as 'title' may be */ \ /* multiple strings to be concatenated. */ \ ".ascii "#title" \n\t" \ ".byte 0 \n\t" \ - ".align 2, 0 \n\t" + ".popsection \n\t" \ + ".word 10b \n\t" #define TEST_ARG_REG(reg, val) \ ".byte "__stringify(ARG_TYPE_REG)" \n\t" \ diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c index e6a6edb..eb2c4d5 100644 --- a/arch/arm/kernel/perf_event_cpu.c +++ b/arch/arm/kernel/perf_event_cpu.c @@ -76,21 +76,15 @@ static struct pmu_hw_events *cpu_pmu_get_cpu_events(void) static void cpu_pmu_enable_percpu_irq(void *data) { - struct arm_pmu *cpu_pmu = data; - struct platform_device *pmu_device = cpu_pmu->plat_device; - int irq = platform_get_irq(pmu_device, 0); + int irq = *(int *)data; enable_percpu_irq(irq, IRQ_TYPE_NONE); - cpumask_set_cpu(smp_processor_id(), &cpu_pmu->active_irqs); } static void cpu_pmu_disable_percpu_irq(void *data) { - struct arm_pmu *cpu_pmu = data; - struct platform_device *pmu_device = cpu_pmu->plat_device; - int irq = platform_get_irq(pmu_device, 0); + int irq = *(int *)data; - cpumask_clear_cpu(smp_processor_id(), &cpu_pmu->active_irqs); disable_percpu_irq(irq); } @@ -103,7 +97,7 @@ static void cpu_pmu_free_irq(struct arm_pmu *cpu_pmu) irq = platform_get_irq(pmu_device, 0); if (irq >= 0 && irq_is_percpu(irq)) { - on_each_cpu(cpu_pmu_disable_percpu_irq, cpu_pmu, 1); + on_each_cpu(cpu_pmu_disable_percpu_irq, &irq, 1); free_percpu_irq(irq, &percpu_pmu); } else { for (i = 0; i < irqs; ++i) { @@ -138,7 +132,7 @@ static int cpu_pmu_request_irq(struct arm_pmu *cpu_pmu, irq_handler_t handler) irq); return err; } - on_each_cpu(cpu_pmu_enable_percpu_irq, cpu_pmu, 1); + on_each_cpu(cpu_pmu_enable_percpu_irq, &irq, 1); } else { for (i = 0; i < irqs; ++i) { err = 0; @@ -152,8 +146,8 @@ static int cpu_pmu_request_irq(struct arm_pmu *cpu_pmu, irq_handler_t handler) * continue. Otherwise, continue without this interrupt. */ if (irq_set_affinity(irq, cpumask_of(i)) && irqs > 1) { - pr_warning("unable to set irq affinity (irq=%d, cpu=%u)\n", - irq, i); + pr_warn("unable to set irq affinity (irq=%d, cpu=%u)\n", + irq, i); continue; } diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 81ef686..a0a691d 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -306,7 +306,6 @@ void __show_regs(struct pt_regs *regs) void show_regs(struct pt_regs * regs) { - printk("\n"); __show_regs(regs); dump_stack(); } @@ -334,6 +333,8 @@ void flush_thread(void) memset(&tsk->thread.debug, 0, sizeof(struct debug_info)); memset(&thread->fpstate, 0, sizeof(union fp_state)); + flush_tls(); + thread_notify(THREAD_NOTIFY_FLUSH, thread); } @@ -472,19 +473,57 @@ int in_gate_area_no_mm(unsigned long addr) const char *arch_vma_name(struct vm_area_struct *vma) { - return is_gate_vma(vma) ? "[vectors]" : - (vma->vm_mm && vma->vm_start == vma->vm_mm->context.sigpage) ? - "[sigpage]" : NULL; + return is_gate_vma(vma) ? "[vectors]" : NULL; +} + +/* If possible, provide a placement hint at a random offset from the + * stack for the signal page. + */ +static unsigned long sigpage_addr(const struct mm_struct *mm, + unsigned int npages) +{ + unsigned long offset; + unsigned long first; + unsigned long last; + unsigned long addr; + unsigned int slots; + + first = PAGE_ALIGN(mm->start_stack); + + last = TASK_SIZE - (npages << PAGE_SHIFT); + + /* No room after stack? */ + if (first > last) + return 0; + + /* Just enough room? */ + if (first == last) + return first; + + slots = ((last - first) >> PAGE_SHIFT) + 1; + + offset = get_random_int() % slots; + + addr = first + (offset << PAGE_SHIFT); + + return addr; } static struct page *signal_page; extern struct page *get_signal_page(void); +static const struct vm_special_mapping sigpage_mapping = { + .name = "[sigpage]", + .pages = &signal_page, +}; + int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) { struct mm_struct *mm = current->mm; + struct vm_area_struct *vma; unsigned long addr; - int ret; + unsigned long hint; + int ret = 0; if (!signal_page) signal_page = get_signal_page(); @@ -492,18 +531,23 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) return -ENOMEM; down_write(&mm->mmap_sem); - addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); + hint = sigpage_addr(mm, 1); + addr = get_unmapped_area(NULL, hint, PAGE_SIZE, 0, 0); if (IS_ERR_VALUE(addr)) { ret = addr; goto up_fail; } - ret = install_special_mapping(mm, addr, PAGE_SIZE, + vma = _install_special_mapping(mm, addr, PAGE_SIZE, VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC, - &signal_page); + &sigpage_mapping); + + if (IS_ERR(vma)) { + ret = PTR_ERR(vma); + goto up_fail; + } - if (ret == 0) - mm->context.sigpage = addr; + mm->context.sigpage = addr; up_fail: up_write(&mm->mmap_sem); diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c index fafedd8..98ea4b7 100644 --- a/arch/arm/kernel/return_address.c +++ b/arch/arm/kernel/return_address.c @@ -59,15 +59,6 @@ void *return_address(unsigned int level) #else /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) */ -#if defined(CONFIG_ARM_UNWIND) -#warning "TODO: return_address should use unwind tables" -#endif - -void *return_address(unsigned int level) -{ - return NULL; -} - #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */ EXPORT_SYMBOL_GPL(return_address); diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 84db893d..c031063 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -133,6 +133,7 @@ struct stack { u32 irq[3]; u32 abt[3]; u32 und[3]; + u32 fiq[3]; } ____cacheline_aligned; #ifndef CONFIG_CPU_V7M @@ -470,7 +471,10 @@ void notrace cpu_init(void) "msr cpsr_c, %5\n\t" "add r14, %0, %6\n\t" "mov sp, r14\n\t" - "msr cpsr_c, %7" + "msr cpsr_c, %7\n\t" + "add r14, %0, %8\n\t" + "mov sp, r14\n\t" + "msr cpsr_c, %9" : : "r" (stk), PLC (PSR_F_BIT | PSR_I_BIT | IRQ_MODE), @@ -479,6 +483,8 @@ void notrace cpu_init(void) "I" (offsetof(struct stack, abt[0])), PLC (PSR_F_BIT | PSR_I_BIT | UND_MODE), "I" (offsetof(struct stack, und[0])), + PLC (PSR_F_BIT | PSR_I_BIT | FIQ_MODE), + "I" (offsetof(struct stack, fiq[0])), PLC (PSR_F_BIT | PSR_I_BIT | SVC_MODE) : "r14"); #endif diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 9388a3d..39c74a2 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -95,6 +95,9 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) { int ret; + if (!smp_ops.smp_boot_secondary) + return -ENOSYS; + /* * We need to tell the secondary core where to find * its stack and the page tables. @@ -113,7 +116,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) /* * Now bring the CPU into our world. */ - ret = boot_secondary(cpu, idle); + ret = smp_ops.smp_boot_secondary(cpu, idle); if (ret == 0) { /* * CPU was successfully started, wait for it @@ -142,13 +145,6 @@ void __init smp_init_cpus(void) smp_ops.smp_init_cpus(); } -int boot_secondary(unsigned int cpu, struct task_struct *idle) -{ - if (smp_ops.smp_boot_secondary) - return smp_ops.smp_boot_secondary(cpu, idle); - return -ENOSYS; -} - int platform_can_cpu_hotplug(void) { #ifdef CONFIG_HOTPLUG_CPU @@ -650,7 +646,7 @@ void smp_send_stop(void) udelay(1); if (num_online_cpus() > 1) - pr_warning("SMP: failed to stop secondary CPUs\n"); + pr_warn("SMP: failed to stop secondary CPUs\n"); } /* diff --git a/arch/arm/kernel/swp_emulate.c b/arch/arm/kernel/swp_emulate.c index 67ca857..587fdfe 100644 --- a/arch/arm/kernel/swp_emulate.c +++ b/arch/arm/kernel/swp_emulate.c @@ -142,14 +142,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data, while (1) { unsigned long temp; - /* - * Barrier required between accessing protected resource and - * releasing a lock for it. Legacy code might not have done - * this, and we cannot determine that this is not the case - * being emulated, so insert always. - */ - smp_mb(); - if (type == TYPE_SWPB) __user_swpb_asm(*data, address, res, temp); else @@ -162,13 +154,6 @@ static int emulate_swpX(unsigned int address, unsigned int *data, } if (res == 0) { - /* - * Barrier also required between acquiring a lock for a - * protected resource and accessing the resource. Inserted for - * same reason as above. - */ - smp_mb(); - if (type == TYPE_SWPB) swpbcounter++; else diff --git a/arch/arm/kernel/thumbee.c b/arch/arm/kernel/thumbee.c index 7b8403b..80f0d69 100644 --- a/arch/arm/kernel/thumbee.c +++ b/arch/arm/kernel/thumbee.c @@ -45,7 +45,7 @@ static int thumbee_notifier(struct notifier_block *self, unsigned long cmd, void switch (cmd) { case THREAD_NOTIFY_FLUSH: - thread->thumbee_state = 0; + teehbr_write(0); break; case THREAD_NOTIFY_SWITCH: current_thread_info()->thumbee_state = teehbr_read(); diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index c8e4bb7..0c8b108 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -25,6 +25,7 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/sched.h> +#include <linux/irq.h> #include <linux/atomic.h> #include <asm/cacheflush.h> @@ -460,10 +461,29 @@ die_sig: arm_notify_die("Oops - undefined instruction", regs, &info, 0, 6); } -asmlinkage void do_unexp_fiq (struct pt_regs *regs) +/* + * Handle FIQ similarly to NMI on x86 systems. + * + * The runtime environment for NMIs is extremely restrictive + * (NMIs can pre-empt critical sections meaning almost all locking is + * forbidden) meaning this default FIQ handling must only be used in + * circumstances where non-maskability improves robustness, such as + * watchdog or debug logic. + * + * This handler is not appropriate for general purpose use in drivers + * platform code and can be overrideen using set_fiq_handler. + */ +asmlinkage void __exception_irq_entry handle_fiq_as_nmi(struct pt_regs *regs) { - printk("Hmm. Unexpected FIQ received, but trying to continue\n"); - printk("You may have a hardware problem...\n"); + struct pt_regs *old_regs = set_irq_regs(regs); + + nmi_enter(); + + /* nop. FIQ handlers for special arch/arm features can be added here. */ + + nmi_exit(); + + set_irq_regs(old_regs); } /* @@ -581,7 +601,6 @@ do_cache_op(unsigned long start, unsigned long end, int flags) #define NR(x) ((__ARM_NR_##x) - __ARM_NR_BASE) asmlinkage int arm_syscall(int no, struct pt_regs *regs) { - struct thread_info *thread = current_thread_info(); siginfo_t info; if ((no >> 16) != (__ARM_NR_BASE>> 16)) @@ -632,21 +651,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs) return regs->ARM_r0; case NR(set_tls): - thread->tp_value[0] = regs->ARM_r0; - if (tls_emu) - return 0; - if (has_tls_reg) { - asm ("mcr p15, 0, %0, c13, c0, 3" - : : "r" (regs->ARM_r0)); - } else { - /* - * User space must never try to access this directly. - * Expect your app to break eventually if you do so. - * The user helper at 0xffff0fe0 must be used instead. - * (see entry-armv.S for details) - */ - *((unsigned int *)0xffff0ff0) = regs->ARM_r0; - } + set_tls(regs->ARM_r0); return 0; #ifdef CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG diff --git a/arch/arm/kernel/unwind.c b/arch/arm/kernel/unwind.c index a61a1df..cbb85c5 100644 --- a/arch/arm/kernel/unwind.c +++ b/arch/arm/kernel/unwind.c @@ -157,7 +157,7 @@ static const struct unwind_idx *search_index(unsigned long addr, if (likely(start->addr_offset <= addr_prel31)) return start; else { - pr_warning("unwind: Unknown symbol address %08lx\n", addr); + pr_warn("unwind: Unknown symbol address %08lx\n", addr); return NULL; } } @@ -225,7 +225,7 @@ static unsigned long unwind_get_byte(struct unwind_ctrl_block *ctrl) unsigned long ret; if (ctrl->entries <= 0) { - pr_warning("unwind: Corrupt unwind table\n"); + pr_warn("unwind: Corrupt unwind table\n"); return 0; } @@ -333,8 +333,8 @@ static int unwind_exec_insn(struct unwind_ctrl_block *ctrl) insn = (insn << 8) | unwind_get_byte(ctrl); mask = insn & 0x0fff; if (mask == 0) { - pr_warning("unwind: 'Refuse to unwind' instruction %04lx\n", - insn); + pr_warn("unwind: 'Refuse to unwind' instruction %04lx\n", + insn); return -URC_FAILURE; } @@ -357,8 +357,8 @@ static int unwind_exec_insn(struct unwind_ctrl_block *ctrl) unsigned long mask = unwind_get_byte(ctrl); if (mask == 0 || mask & 0xf0) { - pr_warning("unwind: Spare encoding %04lx\n", - (insn << 8) | mask); + pr_warn("unwind: Spare encoding %04lx\n", + (insn << 8) | mask); return -URC_FAILURE; } @@ -370,7 +370,7 @@ static int unwind_exec_insn(struct unwind_ctrl_block *ctrl) ctrl->vrs[SP] += 0x204 + (uleb128 << 2); } else { - pr_warning("unwind: Unhandled instruction %02lx\n", insn); + pr_warn("unwind: Unhandled instruction %02lx\n", insn); return -URC_FAILURE; } @@ -403,7 +403,7 @@ int unwind_frame(struct stackframe *frame) idx = unwind_find_idx(frame->pc); if (!idx) { - pr_warning("unwind: Index not found %08lx\n", frame->pc); + pr_warn("unwind: Index not found %08lx\n", frame->pc); return -URC_FAILURE; } @@ -422,8 +422,8 @@ int unwind_frame(struct stackframe *frame) /* only personality routine 0 supported in the index */ ctrl.insn = &idx->insn; else { - pr_warning("unwind: Unsupported personality routine %08lx in the index at %p\n", - idx->insn, idx); + pr_warn("unwind: Unsupported personality routine %08lx in the index at %p\n", + idx->insn, idx); return -URC_FAILURE; } @@ -435,8 +435,8 @@ int unwind_frame(struct stackframe *frame) ctrl.byte = 1; ctrl.entries = 1 + ((*ctrl.insn & 0x00ff0000) >> 16); } else { - pr_warning("unwind: Unsupported personality routine %08lx at %p\n", - *ctrl.insn, ctrl.insn); + pr_warn("unwind: Unsupported personality routine %08lx at %p\n", + *ctrl.insn, ctrl.insn); return -URC_FAILURE; } diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 6f57cb9..8e95aa4 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -219,8 +219,8 @@ SECTIONS __data_loc = ALIGN(4); /* location in binary */ . = PAGE_OFFSET + TEXT_OFFSET; #else - __init_end = .; . = ALIGN(THREAD_SIZE); + __init_end = .; __data_loc = .; #endif diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index a99e0cd..7796051 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -82,12 +82,12 @@ struct kvm_vcpu *kvm_arm_get_running_vcpu(void) /** * kvm_arm_get_running_vcpus - get the per-CPU array of currently running vcpus. */ -struct kvm_vcpu __percpu **kvm_get_running_vcpus(void) +struct kvm_vcpu * __percpu *kvm_get_running_vcpus(void) { return &kvm_arm_running_vcpu; } -int kvm_arch_hardware_enable(void *garbage) +int kvm_arch_hardware_enable(void) { return 0; } @@ -97,27 +97,16 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) return kvm_vcpu_exiting_guest_mode(vcpu) == IN_GUEST_MODE; } -void kvm_arch_hardware_disable(void *garbage) -{ -} - int kvm_arch_hardware_setup(void) { return 0; } -void kvm_arch_hardware_unsetup(void) -{ -} - void kvm_arch_check_processor_compat(void *rtn) { *(int *)rtn = 0; } -void kvm_arch_sync_events(struct kvm *kvm) -{ -} /** * kvm_arch_init_vm - initializes a VM data structure @@ -172,6 +161,8 @@ void kvm_arch_destroy_vm(struct kvm *kvm) kvm->vcpus[i] = NULL; } } + + kvm_vgic_destroy(kvm); } int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) @@ -188,6 +179,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_ONE_REG: case KVM_CAP_ARM_PSCI: case KVM_CAP_ARM_PSCI_0_2: + case KVM_CAP_READONLY_MEM: r = 1; break; case KVM_CAP_COALESCED_MMIO: @@ -253,6 +245,7 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) { kvm_mmu_free_memory_caches(vcpu); kvm_timer_vcpu_terminate(vcpu); + kvm_vgic_vcpu_destroy(vcpu); kmem_cache_free(kvm_vcpu_cache, vcpu); } @@ -268,26 +261,15 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) { - int ret; - /* Force users to call KVM_ARM_VCPU_INIT */ vcpu->arch.target = -1; - /* Set up VGIC */ - ret = kvm_vgic_vcpu_init(vcpu); - if (ret) - return ret; - /* Set up the timer */ kvm_timer_vcpu_init(vcpu); return 0; } -void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) -{ -} - void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { vcpu->cpu = cpu; @@ -428,9 +410,9 @@ static void update_vttbr(struct kvm *kvm) /* update vttbr to be used with the new vmid */ pgd_phys = virt_to_phys(kvm->arch.pgd); + BUG_ON(pgd_phys & ~VTTBR_BADDR_MASK); vmid = ((u64)(kvm->arch.vmid) << VTTBR_VMID_SHIFT) & VTTBR_VMID_MASK; - kvm->arch.vttbr = pgd_phys & VTTBR_BADDR_MASK; - kvm->arch.vttbr |= vmid; + kvm->arch.vttbr = pgd_phys | vmid; spin_unlock(&kvm_vmid_lock); } diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c index 37a0fe1..7928dbd 100644 --- a/arch/arm/kvm/coproc.c +++ b/arch/arm/kvm/coproc.c @@ -791,7 +791,7 @@ static bool is_valid_cache(u32 val) u32 level, ctype; if (val >= CSSELR_MAX) - return -ENOENT; + return false; /* Bottom bit is Instruction or Data bit. Next 3 bits are level. */ level = (val >> 1); diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c index 813e492..cc0b787 100644 --- a/arch/arm/kvm/guest.c +++ b/arch/arm/kvm/guest.c @@ -163,7 +163,7 @@ static int set_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) ret = copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id)); if (ret != 0) - return ret; + return -EFAULT; return kvm_arm_timer_set_reg(vcpu, reg->id, val); } diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c index 4c979d4..a96a804 100644 --- a/arch/arm/kvm/handle_exit.c +++ b/arch/arm/kvm/handle_exit.c @@ -93,6 +93,8 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run) else kvm_vcpu_block(vcpu); + kvm_skip_instr(vcpu, kvm_vcpu_trap_il_is32bit(vcpu)); + return 1; } diff --git a/arch/arm/kvm/init.S b/arch/arm/kvm/init.S index 991415d..3988e72 100644 --- a/arch/arm/kvm/init.S +++ b/arch/arm/kvm/init.S @@ -99,6 +99,10 @@ __do_hyp_init: mrc p15, 0, r0, c10, c2, 1 mcr p15, 4, r0, c10, c2, 1 + @ Invalidate the stale TLBs from Bootloader + mcr p15, 4, r0, c8, c7, 0 @ TLBIALLH + dsb ish + @ Set the HSCTLR to: @ - ARM/THUMB exceptions: Kernel config (Thumb-2 kernel) @ - Endianness: Kernel config diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index 16e7994..eea0306 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -746,22 +746,29 @@ static bool transparent_hugepage_adjust(pfn_t *pfnp, phys_addr_t *ipap) return false; } +static bool kvm_is_write_fault(struct kvm_vcpu *vcpu) +{ + if (kvm_vcpu_trap_is_iabt(vcpu)) + return false; + + return kvm_vcpu_dabt_iswrite(vcpu); +} + static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, - struct kvm_memory_slot *memslot, + struct kvm_memory_slot *memslot, unsigned long hva, unsigned long fault_status) { int ret; bool write_fault, writable, hugetlb = false, force_pte = false; unsigned long mmu_seq; gfn_t gfn = fault_ipa >> PAGE_SHIFT; - unsigned long hva = gfn_to_hva(vcpu->kvm, gfn); struct kvm *kvm = vcpu->kvm; struct kvm_mmu_memory_cache *memcache = &vcpu->arch.mmu_page_cache; struct vm_area_struct *vma; pfn_t pfn; pgprot_t mem_type = PAGE_S2; - write_fault = kvm_is_write_fault(kvm_vcpu_get_hsr(vcpu)); + write_fault = kvm_is_write_fault(vcpu); if (fault_status == FSC_PERM && !write_fault) { kvm_err("Unexpected L2 read permission error\n"); return -EFAULT; @@ -863,7 +870,8 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run) unsigned long fault_status; phys_addr_t fault_ipa; struct kvm_memory_slot *memslot; - bool is_iabt; + unsigned long hva; + bool is_iabt, write_fault, writable; gfn_t gfn; int ret, idx; @@ -874,17 +882,22 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run) kvm_vcpu_get_hfar(vcpu), fault_ipa); /* Check the stage-2 fault is trans. fault or write fault */ - fault_status = kvm_vcpu_trap_get_fault(vcpu); + fault_status = kvm_vcpu_trap_get_fault_type(vcpu); if (fault_status != FSC_FAULT && fault_status != FSC_PERM) { - kvm_err("Unsupported fault status: EC=%#x DFCS=%#lx\n", - kvm_vcpu_trap_get_class(vcpu), fault_status); + kvm_err("Unsupported FSC: EC=%#x xFSC=%#lx ESR_EL2=%#lx\n", + kvm_vcpu_trap_get_class(vcpu), + (unsigned long)kvm_vcpu_trap_get_fault(vcpu), + (unsigned long)kvm_vcpu_get_hsr(vcpu)); return -EFAULT; } idx = srcu_read_lock(&vcpu->kvm->srcu); gfn = fault_ipa >> PAGE_SHIFT; - if (!kvm_is_visible_gfn(vcpu->kvm, gfn)) { + memslot = gfn_to_memslot(vcpu->kvm, gfn); + hva = gfn_to_hva_memslot_prot(memslot, gfn, &writable); + write_fault = kvm_is_write_fault(vcpu); + if (kvm_is_error_hva(hva) || (write_fault && !writable)) { if (is_iabt) { /* Prefetch Abort on I/O address */ kvm_inject_pabt(vcpu, kvm_vcpu_get_hfar(vcpu)); @@ -892,13 +905,6 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run) goto out_unlock; } - if (fault_status != FSC_FAULT) { - kvm_err("Unsupported fault status on io memory: %#lx\n", - fault_status); - ret = -EFAULT; - goto out_unlock; - } - /* * The IPA is reported as [MAX:12], so we need to * complement it with the bottom 12 bits from the @@ -910,9 +916,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run) goto out_unlock; } - memslot = gfn_to_memslot(vcpu->kvm, gfn); - - ret = user_mem_abort(vcpu, fault_ipa, memslot, fault_status); + ret = user_mem_abort(vcpu, fault_ipa, memslot, hva, fault_status); if (ret == 0) ret = 1; out_unlock: diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index 9386000..8ecfd15 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -80,7 +80,7 @@ ENTRY(__get_user_8) ENDPROC(__get_user_8) #ifdef __ARMEB__ -ENTRY(__get_user_lo8) +ENTRY(__get_user_32t_8) check_uaccess r0, 8, r1, r2, __get_user_bad #ifdef CONFIG_CPU_USE_DOMAINS add r0, r0, #4 @@ -90,7 +90,37 @@ ENTRY(__get_user_lo8) #endif mov r0, #0 ret lr -ENDPROC(__get_user_lo8) +ENDPROC(__get_user_32t_8) + +ENTRY(__get_user_64t_1) + check_uaccess r0, 1, r1, r2, __get_user_bad8 +8: TUSER(ldrb) r3, [r0] + mov r0, #0 + ret lr +ENDPROC(__get_user_64t_1) + +ENTRY(__get_user_64t_2) + check_uaccess r0, 2, r1, r2, __get_user_bad8 +#ifdef CONFIG_CPU_USE_DOMAINS +rb .req ip +9: ldrbt r3, [r0], #1 +10: ldrbt rb, [r0], #0 +#else +rb .req r0 +9: ldrb r3, [r0] +10: ldrb rb, [r0, #1] +#endif + orr r3, rb, r3, lsl #8 + mov r0, #0 + ret lr +ENDPROC(__get_user_64t_2) + +ENTRY(__get_user_64t_4) + check_uaccess r0, 4, r1, r2, __get_user_bad8 +11: TUSER(ldr) r3, [r0] + mov r0, #0 + ret lr +ENDPROC(__get_user_64t_4) #endif __get_user_bad8: @@ -111,5 +141,9 @@ ENDPROC(__get_user_bad8) .long 6b, __get_user_bad8 #ifdef __ARMEB__ .long 7b, __get_user_bad + .long 8b, __get_user_bad8 + .long 9b, __get_user_bad8 + .long 10b, __get_user_bad8 + .long 11b, __get_user_bad8 #endif .popsection diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 807b22da..1947a09 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -31,6 +31,11 @@ config OLD_CLK_AT91 bool default AT91_PMC_UNIT && AT91_USE_OLD_CLK +config OLD_IRQ_AT91 + bool + select MULTI_IRQ_HANDLER + select SPARSE_IRQ + config AT91_SAM9_ALT_RESET bool default !ARCH_AT91X40 @@ -51,18 +56,16 @@ config HAVE_AT91_H32MX config SOC_AT91SAM9 bool select AT91_SAM9_TIME + select ATMEL_AIC_IRQ if !OLD_IRQ_AT91 select CPU_ARM926T select GENERIC_CLOCKEVENTS - select MULTI_IRQ_HANDLER - select SPARSE_IRQ config SOC_SAMA5 bool select AT91_SAM9_TIME + select ATMEL_AIC5_IRQ select CPU_V7 select GENERIC_CLOCKEVENTS - select MULTI_IRQ_HANDLER - select SPARSE_IRQ select USE_OF menu "Atmel AT91 System-on-Chip" @@ -76,8 +79,7 @@ config ARCH_AT91X40 depends on !MMU select CPU_ARM7TDMI select ARCH_USES_GETTIMEOFFSET - select MULTI_IRQ_HANDLER - select SPARSE_IRQ + select OLD_IRQ_AT91 help Select this if you are using one of Atmel's AT91X40 SoC. @@ -129,11 +131,10 @@ endif if SOC_SAM_V4_V5 config SOC_AT91RM9200 bool "AT91RM9200" + select ATMEL_AIC_IRQ if !OLD_IRQ_AT91 select CPU_ARM920T select GENERIC_CLOCKEVENTS select HAVE_AT91_DBGU0 - select MULTI_IRQ_HANDLER - select SPARSE_IRQ select HAVE_AT91_USB_CLK config SOC_AT91SAM9260 diff --git a/arch/arm/mach-at91/Kconfig.non_dt b/arch/arm/mach-at91/Kconfig.non_dt index aa31e55..d8e8821 100644 --- a/arch/arm/mach-at91/Kconfig.non_dt +++ b/arch/arm/mach-at91/Kconfig.non_dt @@ -14,31 +14,37 @@ config ARCH_AT91RM9200 bool "AT91RM9200" select SOC_AT91RM9200 select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 config ARCH_AT91SAM9260 bool "AT91SAM9260 or AT91SAM9XE or AT91SAM9G20" select SOC_AT91SAM9260 select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 config ARCH_AT91SAM9261 bool "AT91SAM9261 or AT91SAM9G10" select SOC_AT91SAM9261 select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 config ARCH_AT91SAM9263 bool "AT91SAM9263" select SOC_AT91SAM9263 select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 config ARCH_AT91SAM9RL bool "AT91SAM9RL" select SOC_AT91SAM9RL select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 config ARCH_AT91SAM9G45 bool "AT91SAM9G45" select SOC_AT91SAM9G45 select AT91_USE_OLD_CLK + select OLD_IRQ_AT91 endchoice diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 3e9f01c..603365e 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -2,11 +2,12 @@ # Makefile for the linux kernel. # -obj-y := irq.o gpio.o setup.o sysirq_mask.o +obj-y := gpio.o setup.o sysirq_mask.o obj-m := obj-n := obj- := +obj-$(CONFIG_OLD_IRQ_AT91) += irq.o obj-$(CONFIG_OLD_CLK_AT91) += clock.o obj-$(CONFIG_AT91_SAM9_ALT_RESET) += at91sam9_alt_reset.o obj-$(CONFIG_AT91_SAM9G45_RESET) += at91sam9g45_reset.o diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c index 3a185fa..226563f 100644 --- a/arch/arm/mach-at91/board-dt-rm9200.c +++ b/arch/arm/mach-at91/board-dt-rm9200.c @@ -14,6 +14,7 @@ #include <linux/gpio.h> #include <linux/of.h> #include <linux/of_irq.h> +#include <linux/clk-provider.h> #include <asm/setup.h> #include <asm/irq.h> @@ -24,15 +25,12 @@ #include "at91_aic.h" #include "generic.h" - -static const struct of_device_id irq_of_match[] __initconst = { - { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init }, - { /*sentinel*/ } -}; - -static void __init at91rm9200_dt_init_irq(void) +static void __init at91rm9200_dt_timer_init(void) { - of_irq_init(irq_of_match); +#if defined(CONFIG_COMMON_CLK) + of_clk_init(NULL); +#endif + at91rm9200_timer_init(); } static const char *at91rm9200_dt_board_compat[] __initdata = { @@ -41,10 +39,8 @@ static const char *at91rm9200_dt_board_compat[] __initdata = { }; DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)") - .init_time = at91rm9200_timer_init, + .init_time = at91rm9200_dt_timer_init, .map_io = at91_map_io, - .handle_irq = at91_aic_handle_irq, .init_early = at91rm9200_dt_initialize, - .init_irq = at91rm9200_dt_init_irq, .dt_compat = at91rm9200_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c index 575b0be..dfa8d48 100644 --- a/arch/arm/mach-at91/board-dt-sam9.c +++ b/arch/arm/mach-at91/board-dt-sam9.c @@ -34,17 +34,6 @@ static void __init sam9_dt_timer_init(void) at91sam926x_pit_init(); } -static const struct of_device_id irq_of_match[] __initconst = { - - { .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init }, - { /*sentinel*/ } -}; - -static void __init at91_dt_init_irq(void) -{ - of_irq_init(irq_of_match); -} - static const char *at91_dt_board_compat[] __initdata = { "atmel,at91sam9", NULL @@ -54,8 +43,6 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)") /* Maintainer: Atmel */ .init_time = sam9_dt_timer_init, .map_io = at91_map_io, - .handle_irq = at91_aic_handle_irq, .init_early = at91_dt_initialize, - .init_irq = at91_dt_init_irq, .dt_compat = at91_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c index 51495633..4cc84e8 100644 --- a/arch/arm/mach-at91/board-dt-sama5.c +++ b/arch/arm/mach-at91/board-dt-sama5.c @@ -35,17 +35,6 @@ static void __init sama5_dt_timer_init(void) at91sam926x_pit_init(); } -static const struct of_device_id irq_of_match[] __initconst = { - - { .compatible = "atmel,sama5d3-aic", .data = at91_aic5_of_init }, - { /*sentinel*/ } -}; - -static void __init at91_dt_init_irq(void) -{ - of_irq_init(irq_of_match); -} - static int ksz9021rn_phy_fixup(struct phy_device *phy) { int value; @@ -82,9 +71,7 @@ DT_MACHINE_START(sama5_dt, "Atmel SAMA5 (Device Tree)") /* Maintainer: Atmel */ .init_time = sama5_dt_timer_init, .map_io = at91_map_io, - .handle_irq = at91_aic5_handle_irq, .init_early = at91_dt_initialize, - .init_irq = at91_dt_init_irq, .init_machine = sama5_dt_device_init, .dt_compat = sama5_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index 034529d..d66f102 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -962,6 +962,7 @@ static int __init at91_clock_reset(void) } at91_pmc_write(AT91_PMC_SCDR, scdr); + at91_pmc_write(AT91_PMC_PCDR, pcdr); if (cpu_is_sama5d3()) at91_pmc_write(AT91_PMC_PCDR1, pcdr1); diff --git a/arch/arm/mach-at91/include/mach/at91_pio.h b/arch/arm/mach-at91/include/mach/at91_pio.h index 732b11c..7b73662 100644 --- a/arch/arm/mach-at91/include/mach/at91_pio.h +++ b/arch/arm/mach-at91/include/mach/at91_pio.h @@ -71,4 +71,10 @@ #define ABCDSR_PERIPH_C 0x2 #define ABCDSR_PERIPH_D 0x3 +#define SAMA5D3_PIO_DRIVER1 0x118 /*PIO Driver 1 register offset*/ +#define SAMA5D3_PIO_DRIVER2 0x11C /*PIO Driver 2 register offset*/ + +#define AT91SAM9X5_PIO_DRIVER1 0x114 /*PIO Driver 1 register offset*/ +#define AT91SAM9X5_PIO_DRIVER2 0x118 /*PIO Driver 2 register offset*/ + #endif diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c index 3d192c5..cdb3ec9 100644 --- a/arch/arm/mach-at91/irq.c +++ b/arch/arm/mach-at91/irq.c @@ -48,11 +48,6 @@ void __iomem *at91_aic_base; static struct irq_domain *at91_aic_domain; static struct device_node *at91_aic_np; static unsigned int n_irqs = NR_AIC_IRQS; -static unsigned long at91_aic_caps = 0; - -/* AIC5 introduces a Source Select Register */ -#define AT91_AIC_CAP_AIC5 (1 << 0) -#define has_aic5() (at91_aic_caps & AT91_AIC_CAP_AIC5) #ifdef CONFIG_PM @@ -92,50 +87,14 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value) void at91_irq_suspend(void) { - int bit = -1; - - if (has_aic5()) { - /* disable enabled irqs */ - while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) { - at91_aic_write(AT91_AIC5_SSR, - bit & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IDCR, 1); - } - /* enable wakeup irqs */ - bit = -1; - while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) { - at91_aic_write(AT91_AIC5_SSR, - bit & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IECR, 1); - } - } else { - at91_aic_write(AT91_AIC_IDCR, *backups); - at91_aic_write(AT91_AIC_IECR, *wakeups); - } + at91_aic_write(AT91_AIC_IDCR, *backups); + at91_aic_write(AT91_AIC_IECR, *wakeups); } void at91_irq_resume(void) { - int bit = -1; - - if (has_aic5()) { - /* disable wakeup irqs */ - while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) { - at91_aic_write(AT91_AIC5_SSR, - bit & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IDCR, 1); - } - /* enable irqs disabled for suspend */ - bit = -1; - while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) { - at91_aic_write(AT91_AIC5_SSR, - bit & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IECR, 1); - } - } else { - at91_aic_write(AT91_AIC_IDCR, *wakeups); - at91_aic_write(AT91_AIC_IECR, *backups); - } + at91_aic_write(AT91_AIC_IDCR, *wakeups); + at91_aic_write(AT91_AIC_IECR, *backups); } #else @@ -169,21 +128,6 @@ at91_aic_handle_irq(struct pt_regs *regs) handle_IRQ(irqnr, regs); } -asmlinkage void __exception_irq_entry -at91_aic5_handle_irq(struct pt_regs *regs) -{ - u32 irqnr; - u32 irqstat; - - irqnr = at91_aic_read(AT91_AIC5_IVR); - irqstat = at91_aic_read(AT91_AIC5_ISR); - - if (!irqstat) - at91_aic_write(AT91_AIC5_EOICR, 0); - else - handle_IRQ(irqnr, regs); -} - static void at91_aic_mask_irq(struct irq_data *d) { /* Disable interrupt on AIC */ @@ -192,15 +136,6 @@ static void at91_aic_mask_irq(struct irq_data *d) clear_backup(d->hwirq); } -static void __maybe_unused at91_aic5_mask_irq(struct irq_data *d) -{ - /* Disable interrupt on AIC5 */ - at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IDCR, 1); - /* Update ISR cache */ - clear_backup(d->hwirq); -} - static void at91_aic_unmask_irq(struct irq_data *d) { /* Enable interrupt on AIC */ @@ -209,15 +144,6 @@ static void at91_aic_unmask_irq(struct irq_data *d) set_backup(d->hwirq); } -static void __maybe_unused at91_aic5_unmask_irq(struct irq_data *d) -{ - /* Enable interrupt on AIC5 */ - at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IECR, 1); - /* Update ISR cache */ - set_backup(d->hwirq); -} - static void at91_aic_eoi(struct irq_data *d) { /* @@ -227,11 +153,6 @@ static void at91_aic_eoi(struct irq_data *d) at91_aic_write(AT91_AIC_EOICR, 0); } -static void __maybe_unused at91_aic5_eoi(struct irq_data *d) -{ - at91_aic_write(AT91_AIC5_EOICR, 0); -} - static unsigned long *at91_extern_irq; u32 at91_get_extern_irq(void) @@ -282,16 +203,8 @@ static int at91_aic_set_type(struct irq_data *d, unsigned type) if (srctype < 0) return srctype; - if (has_aic5()) { - at91_aic_write(AT91_AIC5_SSR, - d->hwirq & AT91_AIC5_INTSEL_MSK); - smr = at91_aic_read(AT91_AIC5_SMR) & ~AT91_AIC_SRCTYPE; - at91_aic_write(AT91_AIC5_SMR, smr | srctype); - } else { - smr = at91_aic_read(AT91_AIC_SMR(d->hwirq)) - & ~AT91_AIC_SRCTYPE; - at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype); - } + smr = at91_aic_read(AT91_AIC_SMR(d->hwirq)) & ~AT91_AIC_SRCTYPE; + at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype); return 0; } @@ -331,177 +244,6 @@ static void __init at91_aic_hw_init(unsigned int spu_vector) at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF); } -static void __init __maybe_unused at91_aic5_hw_init(unsigned int spu_vector) -{ - int i; - - /* - * Perform 8 End Of Interrupt Command to make sure AIC - * will not Lock out nIRQ - */ - for (i = 0; i < 8; i++) - at91_aic_write(AT91_AIC5_EOICR, 0); - - /* - * Spurious Interrupt ID in Spurious Vector Register. - * When there is no current interrupt, the IRQ Vector Register - * reads the value stored in AIC_SPU - */ - at91_aic_write(AT91_AIC5_SPU, spu_vector); - - /* No debugging in AIC: Debug (Protect) Control Register */ - at91_aic_write(AT91_AIC5_DCR, 0); - - /* Disable and clear all interrupts initially */ - for (i = 0; i < n_irqs; i++) { - at91_aic_write(AT91_AIC5_SSR, i & AT91_AIC5_INTSEL_MSK); - at91_aic_write(AT91_AIC5_IDCR, 1); - at91_aic_write(AT91_AIC5_ICCR, 1); - } -} - -#if defined(CONFIG_OF) -static unsigned int *at91_aic_irq_priorities; - -static int at91_aic_irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - /* Put virq number in Source Vector Register */ - at91_aic_write(AT91_AIC_SVR(hw), virq); - - /* Active Low interrupt, with priority */ - at91_aic_write(AT91_AIC_SMR(hw), - AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]); - - irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq); - set_irq_flags(virq, IRQF_VALID | IRQF_PROBE); - - return 0; -} - -static int at91_aic5_irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - at91_aic_write(AT91_AIC5_SSR, hw & AT91_AIC5_INTSEL_MSK); - - /* Put virq number in Source Vector Register */ - at91_aic_write(AT91_AIC5_SVR, virq); - - /* Active Low interrupt, with priority */ - at91_aic_write(AT91_AIC5_SMR, - AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]); - - irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq); - set_irq_flags(virq, IRQF_VALID | IRQF_PROBE); - - return 0; -} - -static int at91_aic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr, - const u32 *intspec, unsigned int intsize, - irq_hw_number_t *out_hwirq, unsigned int *out_type) -{ - if (WARN_ON(intsize < 3)) - return -EINVAL; - if (WARN_ON(intspec[0] >= n_irqs)) - return -EINVAL; - if (WARN_ON((intspec[2] < AT91_AIC_IRQ_MIN_PRIORITY) - || (intspec[2] > AT91_AIC_IRQ_MAX_PRIORITY))) - return -EINVAL; - - *out_hwirq = intspec[0]; - *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK; - at91_aic_irq_priorities[*out_hwirq] = intspec[2]; - - return 0; -} - -static struct irq_domain_ops at91_aic_irq_ops = { - .map = at91_aic_irq_map, - .xlate = at91_aic_irq_domain_xlate, -}; - -int __init at91_aic_of_common_init(struct device_node *node, - struct device_node *parent) -{ - struct property *prop; - const __be32 *p; - u32 val; - - at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs) - * sizeof(*at91_extern_irq), GFP_KERNEL); - if (!at91_extern_irq) - return -ENOMEM; - - if (at91_aic_pm_init()) { - kfree(at91_extern_irq); - return -ENOMEM; - } - - at91_aic_irq_priorities = kzalloc(n_irqs - * sizeof(*at91_aic_irq_priorities), - GFP_KERNEL); - if (!at91_aic_irq_priorities) - return -ENOMEM; - - at91_aic_base = of_iomap(node, 0); - at91_aic_np = node; - - at91_aic_domain = irq_domain_add_linear(at91_aic_np, n_irqs, - &at91_aic_irq_ops, NULL); - if (!at91_aic_domain) - panic("Unable to add AIC irq domain (DT)\n"); - - of_property_for_each_u32(node, "atmel,external-irqs", prop, p, val) { - if (val >= n_irqs) - pr_warn("AIC: external irq %d >= %d skip it\n", - val, n_irqs); - else - set_bit(val, at91_extern_irq); - } - - irq_set_default_host(at91_aic_domain); - - return 0; -} - -int __init at91_aic_of_init(struct device_node *node, - struct device_node *parent) -{ - int err; - - err = at91_aic_of_common_init(node, parent); - if (err) - return err; - - at91_aic_hw_init(n_irqs); - - return 0; -} - -int __init at91_aic5_of_init(struct device_node *node, - struct device_node *parent) -{ - int err; - - at91_aic_caps |= AT91_AIC_CAP_AIC5; - n_irqs = NR_AIC5_IRQS; - at91_aic_chip.irq_ack = at91_aic5_mask_irq; - at91_aic_chip.irq_mask = at91_aic5_mask_irq; - at91_aic_chip.irq_unmask = at91_aic5_unmask_irq; - at91_aic_chip.irq_eoi = at91_aic5_eoi; - at91_aic_irq_ops.map = at91_aic5_irq_map; - - err = at91_aic_of_common_init(node, parent); - if (err) - return err; - - at91_aic5_hw_init(n_irqs); - - return 0; -} -#endif - /* * Initialize the AIC interrupt controller. */ diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index e955545..5920373 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -206,16 +206,19 @@ static int at91_pm_enter(suspend_state_t state) at91_pinctrl_gpio_suspend(); else at91_gpio_suspend(); - at91_irq_suspend(); - pr_debug("AT91: PM - wake mask %08x, pm state %d\n", - /* remember all the always-wake irqs */ - (at91_pmc_read(AT91_PMC_PCSR) - | (1 << AT91_ID_FIQ) - | (1 << AT91_ID_SYS) - | (at91_get_extern_irq())) - & at91_aic_read(AT91_AIC_IMR), - state); + if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base) { + at91_irq_suspend(); + + pr_debug("AT91: PM - wake mask %08x, pm state %d\n", + /* remember all the always-wake irqs */ + (at91_pmc_read(AT91_PMC_PCSR) + | (1 << AT91_ID_FIQ) + | (1 << AT91_ID_SYS) + | (at91_get_extern_irq())) + & at91_aic_read(AT91_AIC_IMR), + state); + } switch (state) { /* @@ -280,12 +283,17 @@ static int at91_pm_enter(suspend_state_t state) goto error; } - pr_debug("AT91: PM - wakeup %08x\n", - at91_aic_read(AT91_AIC_IPR) & at91_aic_read(AT91_AIC_IMR)); + if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base) + pr_debug("AT91: PM - wakeup %08x\n", + at91_aic_read(AT91_AIC_IPR) & + at91_aic_read(AT91_AIC_IMR)); error: target_state = PM_SUSPEND_ON; - at91_irq_resume(); + + if (IS_ENABLED(CONFIG_OLD_IRQ_AT91) && at91_aic_base) + at91_irq_resume(); + if (of_have_populated_dt()) at91_pinctrl_gpio_resume(); else diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 535a6e7..ebe7fdc 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -49,7 +49,8 @@ void __init at91_init_irq_default(void) void __init at91_init_interrupts(unsigned int *priority) { /* Initialize the AIC interrupt controller */ - at91_aic_init(priority, at91_boot_soc.extern_irq); + if (IS_ENABLED(CONFIG_OLD_IRQ_AT91)) + at91_aic_init(priority, at91_boot_soc.extern_irq); /* Enable GPIO interrupts */ at91_gpio_irq_setup(); diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c index 2a6323b..671acc5a 100644 --- a/arch/arm/mach-clps711x/common.c +++ b/arch/arm/mach-clps711x/common.c @@ -19,29 +19,17 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include <linux/io.h> + #include <linux/init.h> #include <linux/sizes.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/clk.h> -#include <linux/clkdev.h> -#include <linux/clockchips.h> -#include <linux/clocksource.h> -#include <linux/clk-provider.h> -#include <linux/sched_clock.h> #include <asm/mach/map.h> -#include <asm/mach/time.h> #include <asm/system_misc.h> #include <mach/hardware.h> #include "common.h" -static struct clk *clk_pll, *clk_bus, *clk_uart, *clk_timerl, *clk_timerh, - *clk_tint, *clk_spi; - /* * This maps the generic CLPS711x registers */ @@ -64,129 +52,11 @@ void __init clps711x_init_irq(void) clps711x_intc_init(CLPS711X_PHYS_BASE, SZ_16K); } -static u64 notrace clps711x_sched_clock_read(void) -{ - return ~readw_relaxed(CLPS711X_VIRT_BASE + TC1D); -} - -static void clps711x_clockevent_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - disable_irq(IRQ_TC2OI); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - enable_irq(IRQ_TC2OI); - break; - case CLOCK_EVT_MODE_ONESHOT: - /* Not supported */ - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_RESUME: - /* Left event sources disabled, no more interrupts appear */ - break; - } -} - -static struct clock_event_device clockevent_clps711x = { - .name = "clps711x-clockevent", - .rating = 300, - .features = CLOCK_EVT_FEAT_PERIODIC, - .set_mode = clps711x_clockevent_set_mode, -}; - -static irqreturn_t clps711x_timer_interrupt(int irq, void *dev_id) -{ - clockevent_clps711x.event_handler(&clockevent_clps711x); - - return IRQ_HANDLED; -} - -static struct irqaction clps711x_timer_irq = { - .name = "clps711x-timer", - .flags = IRQF_TIMER | IRQF_IRQPOLL, - .handler = clps711x_timer_interrupt, -}; - -static void add_fixed_clk(struct clk *clk, const char *name, int rate) -{ - clk = clk_register_fixed_rate(NULL, name, NULL, CLK_IS_ROOT, rate); - clk_register_clkdev(clk, name, NULL); -} - void __init clps711x_timer_init(void) { - int osc, ext, pll, cpu, bus, timl, timh, uart, spi; - u32 tmp; - - osc = 3686400; - ext = 13000000; - - tmp = clps_readl(PLLR) >> 24; - if (tmp) - pll = (osc * tmp) / 2; - else - pll = 73728000; /* Default value */ - - tmp = clps_readl(SYSFLG2); - if (tmp & SYSFLG2_CKMODE) { - cpu = ext; - bus = cpu; - spi = 135400; - pll = 0; - } else { - cpu = pll; - if (cpu >= 36864000) - bus = cpu / 2; - else - bus = 36864000 / 2; - spi = cpu / 576; - } - - uart = bus / 10; - - if (tmp & SYSFLG2_CKMODE) { - tmp = clps_readl(SYSCON2); - if (tmp & SYSCON2_OSTB) - timh = ext / 26; - else - timh = 541440; - } else - timh = DIV_ROUND_CLOSEST(cpu, 144); - - timl = DIV_ROUND_CLOSEST(timh, 256); - - /* All clocks are fixed */ - add_fixed_clk(clk_pll, "pll", pll); - add_fixed_clk(clk_bus, "bus", bus); - add_fixed_clk(clk_uart, "uart", uart); - add_fixed_clk(clk_timerl, "timer_lf", timl); - add_fixed_clk(clk_timerh, "timer_hf", timh); - add_fixed_clk(clk_tint, "tint", 64); - add_fixed_clk(clk_spi, "spi", spi); - - pr_info("CPU frequency set at %i Hz.\n", cpu); - - /* Start Timer1 in free running mode (Low frequency) */ - tmp = clps_readl(SYSCON1) & ~(SYSCON1_TC1S | SYSCON1_TC1M); - clps_writel(tmp, SYSCON1); - - sched_clock_register(clps711x_sched_clock_read, 16, timl); - - clocksource_mmio_init(CLPS711X_VIRT_BASE + TC1D, - "clps711x_clocksource", timl, 300, 16, - clocksource_mmio_readw_down); - - /* Set Timer2 prescaler */ - clps_writew(DIV_ROUND_CLOSEST(timh, HZ), TC2D); - - /* Start Timer2 in prescale mode (High frequency)*/ - tmp = clps_readl(SYSCON1) | SYSCON1_TC2M | SYSCON1_TC2S; - clps_writel(tmp, SYSCON1); - - clockevents_config_and_register(&clockevent_clps711x, timh, 0, 0); - - setup_irq(IRQ_TC2OI, &clps711x_timer_irq); + clps711x_clk_init(CLPS711X_VIRT_BASE); + clps711x_clksrc_init(CLPS711X_VIRT_BASE + TC1D, + CLPS711X_VIRT_BASE + TC2D, IRQ_TC2OI); } void clps711x_restart(enum reboot_mode mode, const char *cmd) diff --git a/arch/arm/mach-clps711x/common.h b/arch/arm/mach-clps711x/common.h index f881899..370200b 100644 --- a/arch/arm/mach-clps711x/common.h +++ b/arch/arm/mach-clps711x/common.h @@ -16,3 +16,8 @@ extern void clps711x_restart(enum reboot_mode mode, const char *cmd); /* drivers/irqchip/irq-clps711x.c */ void clps711x_intc_init(phys_addr_t, resource_size_t); +/* drivers/clk/clk-clps711x.c */ +void clps711x_clk_init(void __iomem *base); +/* drivers/clocksource/clps711x-timer.c */ +void clps711x_clksrc_init(void __iomem *tc1_base, void __iomem *tc2_base, + unsigned int irq); diff --git a/arch/arm/mach-cns3xxx/cns3420vb.c b/arch/arm/mach-cns3xxx/cns3420vb.c index d863d87..6428bcc7 100644 --- a/arch/arm/mach-cns3xxx/cns3420vb.c +++ b/arch/arm/mach-cns3xxx/cns3420vb.c @@ -250,5 +250,6 @@ MACHINE_START(CNS3420VB, "Cavium Networks CNS3420 Validation Board") .init_irq = cns3xxx_init_irq, .init_time = cns3xxx_timer_init, .init_machine = cns3420_init, + .init_late = cns3xxx_pcie_init_late, .restart = cns3xxx_restart, MACHINE_END diff --git a/arch/arm/mach-cns3xxx/core.c b/arch/arm/mach-cns3xxx/core.c index f85449a..4e9837d 100644 --- a/arch/arm/mach-cns3xxx/core.c +++ b/arch/arm/mach-cns3xxx/core.c @@ -404,5 +404,6 @@ DT_MACHINE_START(CNS3XXX_DT, "Cavium Networks CNS3xxx") .init_irq = cns3xxx_init_irq, .init_time = cns3xxx_timer_init, .init_machine = cns3xxx_init, + .init_late = cns3xxx_pcie_init_late, .restart = cns3xxx_restart, MACHINE_END diff --git a/arch/arm/mach-cns3xxx/core.h b/arch/arm/mach-cns3xxx/core.h index 5218b61..dc5df7f 100644 --- a/arch/arm/mach-cns3xxx/core.h +++ b/arch/arm/mach-cns3xxx/core.h @@ -21,6 +21,12 @@ void __init cns3xxx_l2x0_init(void); static inline void cns3xxx_l2x0_init(void) {} #endif /* CONFIG_CACHE_L2X0 */ +#ifdef CONFIG_PCI +extern void __init cns3xxx_pcie_init_late(void); +#else +static inline void __init cns3xxx_pcie_init_late(void) {} +#endif + void __init cns3xxx_map_io(void); void __init cns3xxx_init_irq(void); void cns3xxx_power_off(void); diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c index 413134c..45d6bd0 100644 --- a/arch/arm/mach-cns3xxx/pcie.c +++ b/arch/arm/mach-cns3xxx/pcie.c @@ -60,11 +60,10 @@ static void __iomem *cns3xxx_pci_cfg_base(struct pci_bus *bus, struct cns3xxx_pcie *cnspci = pbus_to_cnspci(bus); int busno = bus->number; int slot = PCI_SLOT(devfn); - int offset; void __iomem *base; /* If there is no link, just show the CNS PCI bridge. */ - if (!cnspci->linked && (busno > 0 || slot > 0)) + if (!cnspci->linked && busno > 0) return NULL; /* @@ -72,22 +71,21 @@ static void __iomem *cns3xxx_pci_cfg_base(struct pci_bus *bus, * we still want to access it. For this to work, we must place * the first device on the same bus as the CNS PCI bridge. */ - if (busno == 0) { /* directly connected PCIe bus */ - switch (slot) { - case 0: /* host bridge device, function 0 only */ + if (busno == 0) { /* internal PCIe bus, host bridge device */ + if (devfn == 0) /* device# and function# are ignored by hw */ base = cnspci->host_regs; - break; - case 1: /* directly connected device */ + else + return NULL; /* no such device */ + + } else if (busno == 1) { /* directly connected PCIe device */ + if (slot == 0) /* device# is ignored by hw */ base = cnspci->cfg0_regs; - break; - default: + else return NULL; /* no such device */ - } } else /* remote PCI bus */ - base = cnspci->cfg1_regs; + base = cnspci->cfg1_regs + ((busno & 0xf) << 20); - offset = ((busno & 0xf) << 20) | (devfn << 12) | (where & 0xffc); - return base + offset; + return base + (where & 0xffc) + (devfn << 12); } static int cns3xxx_pci_read_config(struct pci_bus *bus, unsigned int devfn, @@ -167,7 +165,7 @@ static struct pci_ops cns3xxx_pcie_ops = { static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { struct cns3xxx_pcie *cnspci = pdev_to_cnspci(dev); - int irq = cnspci->irqs[slot]; + int irq = cnspci->irqs[!!dev->bus->number]; pr_info("PCIe map irq: %04d:%02x:%02x.%02x slot %d, pin %d, irq: %d\n", pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn), @@ -297,15 +295,19 @@ static void __init cns3xxx_pcie_hw_init(struct cns3xxx_pcie *cnspci) return; /* Set Device Max_Read_Request_Size to 128 byte */ - devfn = PCI_DEVFN(1, 0); + bus.number = 1; /* directly connected PCIe device */ + devfn = PCI_DEVFN(0, 0); pos = pci_bus_find_capability(&bus, devfn, PCI_CAP_ID_EXP); pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc); - dc &= ~(0x3 << 12); /* Clear Device Control Register [14:12] */ - pci_bus_write_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, dc); - pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc); - if (!(dc & (0x3 << 12))) - pr_info("PCIe: Set Device Max_Read_Request_Size to 128 byte\n"); - + if (dc & PCI_EXP_DEVCTL_READRQ) { + dc &= ~PCI_EXP_DEVCTL_READRQ; + pci_bus_write_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, dc); + pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc); + if (dc & PCI_EXP_DEVCTL_READRQ) + pr_warn("PCIe: Unable to set device Max_Read_Request_Size\n"); + else + pr_info("PCIe: Max_Read_Request_Size set to 128 bytes\n"); + } /* Disable PCIe0 Interrupt Mask INTA to INTD */ __raw_writel(~0x3FFF, MISC_PCIE_INT_MASK(port)); } @@ -318,7 +320,7 @@ static int cns3xxx_pcie_abort_handler(unsigned long addr, unsigned int fsr, return 0; } -static int __init cns3xxx_pcie_init(void) +void __init cns3xxx_pcie_init_late(void) { int i; @@ -337,7 +339,4 @@ static int __init cns3xxx_pcie_init(void) } pci_assign_unassigned_resources(); - - return 0; } -device_initcall(cns3xxx_pcie_init); diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 234c5bb..fa11415 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -35,6 +35,7 @@ #include <linux/platform_data/uio_pruss.h> #include <linux/regulator/machine.h> #include <linux/regulator/tps6507x.h> +#include <linux/regulator/fixed.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/wl12xx.h> @@ -842,6 +843,16 @@ static int da850_lcd_hw_init(void) return 0; } +/* Fixed regulator support */ +static struct regulator_consumer_supply fixed_supplies[] = { + /* Baseboard 3.3V: 5V -> TPS73701DCQ -> 3.3V */ + REGULATOR_SUPPLY("AVDD", "1-0018"), + REGULATOR_SUPPLY("DRVDD", "1-0018"), + + /* Baseboard 1.8V: 5V -> TPS73701DCQ -> 1.8V */ + REGULATOR_SUPPLY("DVDD", "1-0018"), +}; + /* TPS65070 voltage regulator support */ /* 3.3V */ @@ -865,6 +876,7 @@ static struct regulator_consumer_supply tps65070_dcdc2_consumers[] = { { .supply = "dvdd3318_c", }, + REGULATOR_SUPPLY("IOVDD", "1-0018"), }; /* 1.2V */ @@ -936,6 +948,7 @@ static struct regulator_init_data tps65070_regulator_data[] = { .valid_ops_mask = (REGULATOR_CHANGE_VOLTAGE | REGULATOR_CHANGE_STATUS), .boot_on = 1, + .always_on = 1, }, .num_consumer_supplies = ARRAY_SIZE(tps65070_dcdc2_consumers), .consumer_supplies = tps65070_dcdc2_consumers, @@ -1446,6 +1459,8 @@ static __init void da850_evm_init(void) if (ret) pr_warn("%s: GPIO init failed: %d\n", __func__, ret); + regulator_register_fixed(0, fixed_supplies, ARRAY_SIZE(fixed_supplies)); + ret = pmic_tps65070_init(); if (ret) pr_warn("%s: TPS65070 PMIC init failed: %d\n", __func__, ret); diff --git a/arch/arm/mach-exynos/include/mach/memory.h b/arch/arm/mach-exynos/include/mach/memory.h deleted file mode 100644 index e19df1f..0000000 --- a/arch/arm/mach-exynos/include/mach/memory.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - Memory definitions - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#ifndef __ASM_ARCH_MEMORY_H -#define __ASM_ARCH_MEMORY_H __FILE__ - -#define PLAT_PHYS_OFFSET UL(0x40000000) - -#ifndef CONFIG_ARM_LPAE -/* Maximum of 256MiB in one bank */ -#define MAX_PHYSMEM_BITS 32 -#define SECTION_SIZE_BITS 28 -#else -#define MAX_PHYSMEM_BITS 36 -#define SECTION_SIZE_BITS 31 -#endif - -#endif /* __ASM_ARCH_MEMORY_H */ diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index a9f1cf7..41ae28d 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c @@ -224,7 +224,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) ret = PTR_ERR(boot_reg); goto fail; } - __raw_writel(boot_addr, cpu_boot_reg(core_id)); + __raw_writel(boot_addr, boot_reg); } call_firmware_op(cpu_boot, core_id); @@ -313,7 +313,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) if (IS_ERR(boot_reg)) break; - __raw_writel(boot_addr, cpu_boot_reg(core_id)); + __raw_writel(boot_addr, boot_reg); } } } diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c index 84acdfd..5a75cdc 100644 --- a/arch/arm/mach-imx/clk-gate2.c +++ b/arch/arm/mach-imx/clk-gate2.c @@ -97,7 +97,7 @@ static int clk_gate2_is_enabled(struct clk_hw *hw) struct clk_gate2 *gate = to_clk_gate2(hw); if (gate->share_count) - return !!(*gate->share_count); + return !!__clk_get_enable_count(hw->clk); else return clk_gate2_reg_is_enabled(gate->reg, gate->bit_idx); } @@ -127,10 +127,6 @@ struct clk *clk_register_gate2(struct device *dev, const char *name, gate->bit_idx = bit_idx; gate->flags = clk_gate2_flags; gate->lock = lock; - - /* Initialize share_count per hardware state */ - if (share_count) - *share_count = clk_gate2_reg_is_enabled(reg, bit_idx) ? 1 : 0; gate->share_count = share_count; init.name = name; diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c index de03620..716e83e 100644 --- a/arch/arm/mach-lpc32xx/common.c +++ b/arch/arm/mach-lpc32xx/common.c @@ -57,20 +57,6 @@ int clk_is_sysclk_mainosc(void) } /* - * System reset via the watchdog timer - */ -static void lpc32xx_watchdog_reset(void) -{ - /* Make sure WDT clocks are enabled */ - __raw_writel(LPC32XX_CLKPWR_PWMCLK_WDOG_EN, - LPC32XX_CLKPWR_TIMER_CLK_CTRL); - - /* Instant assert of RESETOUT_N with pulse length 1mS */ - __raw_writel(13000, io_p2v(LPC32XX_WDTIM_BASE + 0x18)); - __raw_writel(0x70, io_p2v(LPC32XX_WDTIM_BASE + 0xC)); -} - -/* * Detects and returns IRAM size for the device variation */ #define LPC32XX_IRAM_BANK_SIZE SZ_128K @@ -210,16 +196,13 @@ void __init lpc32xx_map_io(void) void lpc23xx_restart(enum reboot_mode mode, const char *cmd) { - switch (mode) { - case REBOOT_SOFT: - case REBOOT_HARD: - lpc32xx_watchdog_reset(); - break; + /* Make sure WDT clocks are enabled */ + __raw_writel(LPC32XX_CLKPWR_PWMCLK_WDOG_EN, + LPC32XX_CLKPWR_TIMER_CLK_CTRL); - default: - /* Do nothing */ - break; - } + /* Instant assert of RESETOUT_N with pulse length 1mS */ + __raw_writel(13000, io_p2v(LPC32XX_WDTIM_BASE + 0x18)); + __raw_writel(0x70, io_p2v(LPC32XX_WDTIM_BASE + 0xC)); /* Wait for watchdog to reset system */ while (1) diff --git a/arch/arm/mach-msm/board-mahimahi.c b/arch/arm/mach-msm/board-mahimahi.c deleted file mode 100644 index 873c3ca..0000000 --- a/arch/arm/mach-msm/board-mahimahi.c +++ /dev/null @@ -1,83 +0,0 @@ -/* linux/arch/arm/mach-msm/board-mahimahi.c - * - * Copyright (C) 2009 Google, Inc. - * Copyright (C) 2009 HTC Corporation. - * Author: Dima Zavin <dima@android.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/init.h> -#include <linux/input.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/memblock.h> - -#include <asm/mach-types.h> -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/setup.h> - -#include <mach/hardware.h> - -#include "board-mahimahi.h" -#include "devices.h" -#include "proc_comm.h" -#include "common.h" - -static uint debug_uart; - -module_param_named(debug_uart, debug_uart, uint, 0); - -static struct platform_device *devices[] __initdata = { -#if !defined(CONFIG_MSM_SERIAL_DEBUGGER) - &msm_device_uart1, -#endif - &msm_device_uart_dm1, - &msm_device_nand, -}; - -static void __init mahimahi_init(void) -{ - platform_add_devices(devices, ARRAY_SIZE(devices)); -} - -static void __init mahimahi_fixup(struct tag *tags, char **cmdline) -{ - memblock_add(PHYS_OFFSET, 219*SZ_1M); - memblock_add(MSM_HIGHMEM_BASE, MSM_HIGHMEM_SIZE); -} - -static void __init mahimahi_map_io(void) -{ - msm_map_common_io(); - msm_clock_init(); -} - -static void __init mahimahi_init_late(void) -{ - smd_debugfs_init(); -} - -void msm_timer_init(void); - -MACHINE_START(MAHIMAHI, "mahimahi") - .atag_offset = 0x100, - .fixup = mahimahi_fixup, - .map_io = mahimahi_map_io, - .init_irq = msm_init_irq, - .init_machine = mahimahi_init, - .init_late = mahimahi_init_late, - .init_time = msm_timer_init, -MACHINE_END diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c index 2458843..8f5ecdc 100644 --- a/arch/arm/mach-msm/board-msm7x30.c +++ b/arch/arm/mach-msm/board-msm7x30.c @@ -124,7 +124,7 @@ struct msm_gpiomux_config msm_gpiomux_configs[GPIOMUX_NGPIOS] = { static struct platform_device *devices[] __initdata = { &msm_clock_7x30, &msm_device_gpio_7x30, -#if defined(CONFIG_SERIAL_MSM) || defined(CONFIG_MSM_SERIAL_DEBUGGER) +#if defined(CONFIG_SERIAL_MSM) &msm_device_uart2, #endif &msm_device_smd, diff --git a/arch/arm/mach-msm/board-trout-gpio.c b/arch/arm/mach-msm/board-trout-gpio.c index 2c25050..722ad63 100644 --- a/arch/arm/mach-msm/board-trout-gpio.c +++ b/arch/arm/mach-msm/board-trout-gpio.c @@ -94,7 +94,7 @@ static int trout_gpio_to_irq(struct gpio_chip *chip, unsigned offset) } static struct msm_gpio_chip msm_gpio_banks[] = { -#if defined(CONFIG_MSM_DEBUG_UART1) +#if defined(CONFIG_DEBUG_MSM_UART) && (CONFIG_DEBUG_UART_PHYS == 0xa9a00000) /* H2W pins <-> UART1 */ TROUT_GPIO_BANK("MISC2", 0x00, TROUT_GPIO_MISC2_BASE, 0x40), #else diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c index f72b07de..ba3edd3 100644 --- a/arch/arm/mach-msm/board-trout.c +++ b/arch/arm/mach-msm/board-trout.c @@ -88,7 +88,7 @@ static void __init trout_map_io(void) msm_map_common_io(); iotable_init(trout_io_desc, ARRAY_SIZE(trout_io_desc)); -#ifdef CONFIG_MSM_DEBUG_UART3 +#if defined(CONFIG_DEBUG_MSM_UART) && (CONFIG_DEBUG_UART_PHYS == 0xa9c00000) /* route UART3 to the "H2W" extended usb connector */ writeb(0x80, TROUT_CPLD_BASE + 0x00); #endif diff --git a/arch/arm/mach-msm/io.c b/arch/arm/mach-msm/io.c index 34e0947..b042dca 100644 --- a/arch/arm/mach-msm/io.c +++ b/arch/arm/mach-msm/io.c @@ -57,8 +57,7 @@ static struct map_desc msm_io_desc[] __initdata = { .length = MSM_SHARED_RAM_SIZE, .type = MT_DEVICE, }, -#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \ - defined(CONFIG_DEBUG_MSM_UART3) +#if defined(CONFIG_DEBUG_MSM_UART) { /* Must be last: virtual and pfn filled in by debug_ll_addr() */ .length = SZ_4K, @@ -76,8 +75,7 @@ void __init msm_map_common_io(void) * pages are peripheral interface or not. */ asm("mcr p15, 0, %0, c15, c2, 4" : : "r" (0)); -#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \ - defined(CONFIG_DEBUG_MSM_UART3) +#if defined(CONFIG_DEBUG_MSM_UART) #ifdef CONFIG_MMU debug_ll_addr(&msm_io_desc[size - 1].pfn, &msm_io_desc[size - 1].virtual); diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 11ccf0b..75212c0 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -1,9 +1,6 @@ menu "TI OMAP/AM/DM/DRA Family" depends on ARCH_MULTI_V6 || ARCH_MULTI_V7 -config ARCH_OMAP - bool - config ARCH_OMAP2 bool "TI OMAP2" depends on ARCH_MULTI_V6 diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 9480997..0b311d5 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -27,7 +27,7 @@ #define gic_of_init NULL #endif -static struct of_device_id omap_dt_match_table[] __initdata = { +static const struct of_device_id omap_dt_match_table[] __initconst = { { .compatible = "simple-bus", }, { .compatible = "ti,omap-infra", }, { } @@ -43,7 +43,7 @@ static void __init omap_generic_init(void) } #ifdef CONFIG_SOC_OMAP2420 -static const char *omap242x_boards_compat[] __initconst = { +static const char *const omap242x_boards_compat[] __initconst = { "ti,omap2420", NULL, }; @@ -62,7 +62,7 @@ MACHINE_END #endif #ifdef CONFIG_SOC_OMAP2430 -static const char *omap243x_boards_compat[] __initconst = { +static const char *const omap243x_boards_compat[] __initconst = { "ti,omap2430", NULL, }; @@ -81,7 +81,7 @@ MACHINE_END #endif #ifdef CONFIG_ARCH_OMAP3 -static const char *omap3_boards_compat[] __initconst = { +static const char *const omap3_boards_compat[] __initconst = { "ti,omap3430", "ti,omap3", NULL, @@ -100,7 +100,7 @@ DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)") .restart = omap3xxx_restart, MACHINE_END -static const char *omap36xx_boards_compat[] __initconst = { +static const char *const omap36xx_boards_compat[] __initconst = { "ti,omap36xx", NULL, }; @@ -118,7 +118,7 @@ DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)") .restart = omap3xxx_restart, MACHINE_END -static const char *omap3_gp_boards_compat[] __initconst = { +static const char *const omap3_gp_boards_compat[] __initconst = { "ti,omap3-beagle", "timll,omap3-devkit8000", NULL, @@ -137,7 +137,7 @@ DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)") .restart = omap3xxx_restart, MACHINE_END -static const char *am3517_boards_compat[] __initconst = { +static const char *const am3517_boards_compat[] __initconst = { "ti,am3517", NULL, }; @@ -157,7 +157,7 @@ MACHINE_END #endif #ifdef CONFIG_SOC_AM33XX -static const char *am33xx_boards_compat[] __initconst = { +static const char *const am33xx_boards_compat[] __initconst = { "ti,am33xx", NULL, }; @@ -177,7 +177,7 @@ MACHINE_END #endif #ifdef CONFIG_ARCH_OMAP4 -static const char *omap4_boards_compat[] __initconst = { +static const char *const omap4_boards_compat[] __initconst = { "ti,omap4460", "ti,omap4430", "ti,omap4", @@ -199,7 +199,7 @@ MACHINE_END #endif #ifdef CONFIG_SOC_OMAP5 -static const char *omap5_boards_compat[] __initconst = { +static const char *const omap5_boards_compat[] __initconst = { "ti,omap5432", "ti,omap5430", "ti,omap5", @@ -221,7 +221,7 @@ MACHINE_END #endif #ifdef CONFIG_SOC_AM43XX -static const char *am43_boards_compat[] __initconst = { +static const char *const am43_boards_compat[] __initconst = { "ti,am4372", "ti,am43", NULL, @@ -240,7 +240,7 @@ MACHINE_END #endif #ifdef CONFIG_SOC_DRA7XX -static const char *dra74x_boards_compat[] __initconst = { +static const char *const dra74x_boards_compat[] __initconst = { "ti,dra742", "ti,dra7", NULL, @@ -259,7 +259,7 @@ DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)") .restart = omap44xx_restart, MACHINE_END -static const char *dra72x_boards_compat[] __initconst = { +static const char *const dra72x_boards_compat[] __initconst = { "ti,dra722", NULL, }; diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h index b6d2989..98fe235 100644 --- a/arch/arm/mach-omap2/common.h +++ b/arch/arm/mach-omap2/common.h @@ -307,7 +307,7 @@ static inline void omap4_cpu_resume(void) #endif -void pdata_quirks_init(struct of_device_id *); +void pdata_quirks_init(const struct of_device_id *); void omap_auxdata_legacy_init(struct device *dev); void omap_pcs_legacy_init(int irq, void (*rearm)(void)); diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index bf852d7..7a050f9 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -544,7 +544,7 @@ int omap_dss_reset(struct omap_hwmod *oh) MAX_MODULE_SOFTRESET_WAIT, c); if (c == MAX_MODULE_SOFTRESET_WAIT) - pr_warning("dss_core: waiting for reset to finish failed\n"); + pr_warn("dss_core: waiting for reset to finish failed\n"); else pr_debug("dss_core: softreset done\n"); diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 9f42d54..a4d52c4 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -1207,8 +1207,7 @@ int gpmc_cs_program_settings(int cs, struct gpmc_settings *p) } } - if ((p->wait_on_read || p->wait_on_write) && - (p->wait_pin > gpmc_nr_waitpins)) { + if (p->wait_pin > gpmc_nr_waitpins) { pr_err("%s: invalid wait-pin (%d)\n", __func__, p->wait_pin); return -EINVAL; } @@ -1244,7 +1243,7 @@ int gpmc_cs_program_settings(int cs, struct gpmc_settings *p) } #ifdef CONFIG_OF -static struct of_device_id gpmc_dt_ids[] = { +static const struct of_device_id gpmc_dt_ids[] = { { .compatible = "ti,omap2420-gpmc" }, { .compatible = "ti,omap2430-gpmc" }, { .compatible = "ti,omap3430-gpmc" }, /* omap3430 & omap3630 */ @@ -1288,8 +1287,8 @@ void gpmc_read_settings_dt(struct device_node *np, struct gpmc_settings *p) p->wait_on_write = of_property_read_bool(np, "gpmc,wait-on-write"); if (!p->wait_on_read && !p->wait_on_write) - pr_warn("%s: read/write wait monitoring not enabled!\n", - __func__); + pr_debug("%s: rd/wr wait monitoring not enabled!\n", + __func__); } } diff --git a/arch/arm/mach-omap2/hdq1w.c b/arch/arm/mach-omap2/hdq1w.c index f78b4a1..f3897d8 100644 --- a/arch/arm/mach-omap2/hdq1w.c +++ b/arch/arm/mach-omap2/hdq1w.c @@ -67,8 +67,8 @@ int omap_hdq1w_reset(struct omap_hwmod *oh) MAX_MODULE_SOFTRESET_WAIT, c); if (c == MAX_MODULE_SOFTRESET_WAIT) - pr_warning("%s: %s: softreset failed (waited %d usec)\n", - __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); else pr_debug("%s: %s: softreset in %d usec\n", __func__, oh->name, c); diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c index b456b44..b9d8e47 100644 --- a/arch/arm/mach-omap2/i2c.c +++ b/arch/arm/mach-omap2/i2c.c @@ -99,7 +99,7 @@ int omap_i2c_reset(struct omap_hwmod *oh) MAX_MODULE_SOFTRESET_WAIT, c); if (c == MAX_MODULE_SOFTRESET_WAIT) - pr_warning("%s: %s: softreset failed (waited %d usec)\n", + pr_warn("%s: %s: softreset failed (waited %d usec)\n", __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); else pr_debug("%s: %s: softreset in %d usec\n", __func__, diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index 35b8590..604a976a 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -289,7 +289,7 @@ int __init intc_of_init(struct device_node *node, return 0; } -static struct of_device_id irq_match[] __initdata = { +static const struct of_device_id irq_match[] __initconst = { { .compatible = "ti,omap2-intc", .data = intc_of_init, }, { } }; diff --git a/arch/arm/mach-omap2/msdi.c b/arch/arm/mach-omap2/msdi.c index 828e0db..8bdf182 100644 --- a/arch/arm/mach-omap2/msdi.c +++ b/arch/arm/mach-omap2/msdi.c @@ -76,8 +76,8 @@ int omap_msdi_reset(struct omap_hwmod *oh) MAX_MODULE_SOFTRESET_WAIT, c); if (c == MAX_MODULE_SOFTRESET_WAIT) - pr_warning("%s: %s: softreset failed (waited %d usec)\n", - __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); else pr_debug("%s: %s: softreset in %d usec\n", __func__, oh->name, c); diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index ac8a249..78064b0 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -814,7 +814,7 @@ int __init omap_mux_late_init(void) "hwmod_io", omap_mux_late_init); if (ret) - pr_warning("mux: Failed to setup hwmod io irq %d\n", ret); + pr_warn("mux: Failed to setup hwmod io irq %d\n", ret); return 0; } diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index e96808e..716247e 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -769,8 +769,8 @@ static int _init_main_clk(struct omap_hwmod *oh) oh->_clk = clk_get(NULL, oh->main_clk); if (IS_ERR(oh->_clk)) { - pr_warning("omap_hwmod: %s: cannot clk_get main_clk %s\n", - oh->name, oh->main_clk); + pr_warn("omap_hwmod: %s: cannot clk_get main_clk %s\n", + oh->name, oh->main_clk); return -EINVAL; } /* @@ -814,8 +814,8 @@ static int _init_interface_clks(struct omap_hwmod *oh) c = clk_get(NULL, os->clk); if (IS_ERR(c)) { - pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n", - oh->name, os->clk); + pr_warn("omap_hwmod: %s: cannot clk_get interface_clk %s\n", + oh->name, os->clk); ret = -EINVAL; continue; } @@ -851,8 +851,8 @@ static int _init_opt_clks(struct omap_hwmod *oh) for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) { c = clk_get(NULL, oc->clk); if (IS_ERR(c)) { - pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n", - oh->name, oc->clk); + pr_warn("omap_hwmod: %s: cannot clk_get opt_clk %s\n", + oh->name, oc->clk); ret = -EINVAL; continue; } @@ -1576,7 +1576,7 @@ static int _init_clkdm(struct omap_hwmod *oh) oh->clkdm = clkdm_lookup(oh->clkdm_name); if (!oh->clkdm) { - pr_warning("omap_hwmod: %s: could not associate to clkdm %s\n", + pr_warn("omap_hwmod: %s: could not associate to clkdm %s\n", oh->name, oh->clkdm_name); return 0; } @@ -1616,7 +1616,7 @@ static int _init_clocks(struct omap_hwmod *oh, void *data) if (!ret) oh->_state = _HWMOD_STATE_CLKS_INITED; else - pr_warning("omap_hwmod: %s: cannot _init_clocks\n", oh->name); + pr_warn("omap_hwmod: %s: cannot _init_clocks\n", oh->name); return ret; } @@ -1739,7 +1739,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name) _disable_clocks(oh); if (ret == -EBUSY) - pr_warning("omap_hwmod: %s: failed to hardreset\n", oh->name); + pr_warn("omap_hwmod: %s: failed to hardreset\n", oh->name); if (!ret) { /* @@ -1953,8 +1953,8 @@ static int _ocp_softreset(struct omap_hwmod *oh) c = _wait_softreset_complete(oh); if (c == MAX_MODULE_SOFTRESET_WAIT) { - pr_warning("omap_hwmod: %s: softreset failed (waited %d usec)\n", - oh->name, MAX_MODULE_SOFTRESET_WAIT); + pr_warn("omap_hwmod: %s: softreset failed (waited %d usec)\n", + oh->name, MAX_MODULE_SOFTRESET_WAIT); ret = -ETIMEDOUT; goto dis_opt_clks; } else { @@ -2065,7 +2065,7 @@ static void _reconfigure_io_chain(void) spin_lock_irqsave(&io_chain_lock, flags); - if (cpu_is_omap34xx() && omap3_has_io_chain_ctrl()) + if (cpu_is_omap34xx()) omap3xxx_prm_reconfigure_io_chain(); else if (cpu_is_omap44xx()) omap44xx_prm_reconfigure_io_chain(); @@ -2618,8 +2618,8 @@ static int __init _setup_reset(struct omap_hwmod *oh) if (oh->rst_lines_cnt == 0) { r = _enable(oh); if (r) { - pr_warning("omap_hwmod: %s: cannot be enabled for reset (%d)\n", - oh->name, oh->_state); + pr_warn("omap_hwmod: %s: cannot be enabled for reset (%d)\n", + oh->name, oh->_state); return -EINVAL; } } diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c index 5fea34e..0a5e6e0 100644 --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -244,8 +244,8 @@ static void __init nokia_n900_legacy_init(void) /* set IBE to 1 */ rx51_secure_update_aux_cr(BIT(6), 0); } else { - pr_warning("RX-51: Not enabling ARM errata 430973 workaround\n"); - pr_warning("Thumb binaries may crash randomly without this workaround\n"); + pr_warn("RX-51: Not enabling ARM errata 430973 workaround\n"); + pr_warn("Thumb binaries may crash randomly without this workaround\n"); } pr_info("RX-51: Registring OMAP3 HWRNG device\n"); @@ -415,7 +415,7 @@ static void pdata_quirks_check(struct pdata_init *quirks) } } -void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table) +void __init pdata_quirks_init(const struct of_device_id *omap_dt_match_table) { omap_sdrc_init(NULL, NULL); pdata_quirks_check(auxdata_quirks); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 3f80929..175564c 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -465,7 +465,7 @@ int __init omap3_pm_init(void) int ret; if (!omap3_has_io_chain_ctrl()) - pr_warning("PM: no software I/O chain control; some wakeups may be lost\n"); + pr_warn("PM: no software I/O chain control; some wakeups may be lost\n"); pm_errata_configure(); diff --git a/arch/arm/mach-omap2/prm3xxx.c b/arch/arm/mach-omap2/prm3xxx.c index e0088e0..ff08da3 100644 --- a/arch/arm/mach-omap2/prm3xxx.c +++ b/arch/arm/mach-omap2/prm3xxx.c @@ -46,7 +46,7 @@ static struct omap_prcm_irq_setup omap3_prcm_irq_setup = { .ocp_barrier = &omap3xxx_prm_ocp_barrier, .save_and_clear_irqen = &omap3xxx_prm_save_and_clear_irqen, .restore_irqen = &omap3xxx_prm_restore_irqen, - .reconfigure_io_chain = &omap3xxx_prm_reconfigure_io_chain, + .reconfigure_io_chain = NULL, }; /* @@ -370,15 +370,30 @@ void __init omap3_prm_init_pm(bool has_uart4, bool has_iva) } /** - * omap3xxx_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain + * omap3430_pre_es3_1_reconfigure_io_chain - restart wake-up daisy chain + * + * The ST_IO_CHAIN bit does not exist in 3430 before es3.1. The only + * thing we can do is toggle EN_IO bit for earlier omaps. + */ +void omap3430_pre_es3_1_reconfigure_io_chain(void) +{ + omap2_prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); + omap2_prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, + PM_WKEN); + omap2_prm_read_mod_reg(WKUP_MOD, PM_WKEN); +} + +/** + * omap3_prm_reconfigure_io_chain - clear latches and reconfigure I/O chain * * Clear any previously-latched I/O wakeup events and ensure that the * I/O wakeup gates are aligned with the current mux settings. Works * by asserting WUCLKIN, waiting for WUCLKOUT to be asserted, and then * deasserting WUCLKIN and clearing the ST_IO_CHAIN WKST bit. No - * return value. + * return value. These registers are only available in 3430 es3.1 and later. */ -void omap3xxx_prm_reconfigure_io_chain(void) +void omap3_prm_reconfigure_io_chain(void) { int i = 0; @@ -401,6 +416,15 @@ void omap3xxx_prm_reconfigure_io_chain(void) } /** + * omap3xxx_prm_reconfigure_io_chain - reconfigure I/O chain + */ +void omap3xxx_prm_reconfigure_io_chain(void) +{ + if (omap3_prcm_irq_setup.reconfigure_io_chain) + omap3_prcm_irq_setup.reconfigure_io_chain(); +} + +/** * omap3xxx_prm_enable_io_wakeup - enable wakeup events from I/O wakeup latches * * Activates the I/O wakeup event latches and allows events logged by @@ -662,6 +686,13 @@ static int omap3xxx_prm_late_init(void) if (!(prm_features & PRM_HAS_IO_WAKEUP)) return 0; + if (omap3_has_io_chain_ctrl()) + omap3_prcm_irq_setup.reconfigure_io_chain = + omap3_prm_reconfigure_io_chain; + else + omap3_prcm_irq_setup.reconfigure_io_chain = + omap3430_pre_es3_1_reconfigure_io_chain; + if (of_have_populated_dt()) { struct device_node *np; int irq_num; diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 76ca320..74054b8 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -467,7 +467,7 @@ int prm_unregister(struct prm_ll_data *pld) return 0; } -static struct of_device_id omap_prcm_dt_match_table[] = { +static const struct of_device_id omap_prcm_dt_match_table[] = { { .compatible = "ti,am3-prcm" }, { .compatible = "ti,am3-scrm" }, { .compatible = "ti,am4-prcm" }, diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c index 7a42e19..d3a588c 100644 --- a/arch/arm/mach-omap2/smartreflex-class3.c +++ b/arch/arm/mach-omap2/smartreflex-class3.c @@ -20,8 +20,8 @@ static int sr_class3_enable(struct omap_sr *sr) unsigned long volt = voltdm_get_voltage(sr->voltdm); if (!volt) { - pr_warning("%s: Curr voltage unknown. Cannot enable %s\n", - __func__, sr->name); + pr_warn("%s: Curr voltage unknown. Cannot enable %s\n", + __func__, sr->name); return -ENODATA; } diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c index 1b91ef0..d7cff26 100644 --- a/arch/arm/mach-omap2/sr_device.c +++ b/arch/arm/mach-omap2/sr_device.c @@ -154,7 +154,7 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user) pdev = omap_device_build(name, i, oh, sr_data, sizeof(*sr_data)); if (IS_ERR(pdev)) - pr_warning("%s: Could not build omap_device for %s: %s.\n\n", + pr_warn("%s: Could not build omap_device for %s: %s\n", __func__, name, oh->name); exit: i++; diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index 43d03fb..4f61148 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -141,7 +141,7 @@ static struct property device_disabled = { .value = "disabled", }; -static struct of_device_id omap_timer_match[] __initdata = { +static const struct of_device_id omap_timer_match[] __initconst = { { .compatible = "ti,omap2420-timer", }, { .compatible = "ti,omap3430-timer", }, { .compatible = "ti,omap4430-timer", }, @@ -162,7 +162,7 @@ static struct of_device_id omap_timer_match[] __initdata = { * the timer node in device-tree as disabled, to prevent the kernel from * registering this timer as a platform device and so no one else can use it. */ -static struct device_node * __init omap_get_timer_dt(struct of_device_id *match, +static struct device_node * __init omap_get_timer_dt(const struct of_device_id *match, const char *property) { struct device_node *np; @@ -388,7 +388,7 @@ static u64 notrace dmtimer_read_sched_clock(void) return 0; } -static struct of_device_id omap_counter_match[] __initdata = { +static const struct of_device_id omap_counter_match[] __initconst = { { .compatible = "ti,omap-counter32k", }, { } }; diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index a4628a9..be9ef83 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -198,7 +198,7 @@ int omap_vc_bypass_scale(struct voltagedomain *voltdm, loop_cnt++; if (retries_cnt > 10) { - pr_warning("%s: Retry count exceeded\n", __func__); + pr_warn("%s: Retry count exceeded\n", __func__); return -ETIMEDOUT; } diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c index 3ac8fe1..3783b86 100644 --- a/arch/arm/mach-omap2/voltage.c +++ b/arch/arm/mach-omap2/voltage.c @@ -55,7 +55,7 @@ static LIST_HEAD(voltdm_list); unsigned long voltdm_get_voltage(struct voltagedomain *voltdm) { if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return 0; } @@ -77,7 +77,7 @@ int voltdm_scale(struct voltagedomain *voltdm, unsigned long volt = 0; if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return -EINVAL; } @@ -96,8 +96,8 @@ int voltdm_scale(struct voltagedomain *voltdm, } if (!volt) { - pr_warning("%s: not scaling. OPP voltage for %lu, not found.\n", - __func__, target_volt); + pr_warn("%s: not scaling. OPP voltage for %lu, not found.\n", + __func__, target_volt); return -EINVAL; } @@ -122,7 +122,7 @@ void voltdm_reset(struct voltagedomain *voltdm) unsigned long target_volt; if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return; } @@ -152,7 +152,7 @@ void omap_voltage_get_volttable(struct voltagedomain *voltdm, struct omap_volt_data **volt_data) { if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return; } @@ -180,12 +180,12 @@ struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm, int i; if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return ERR_PTR(-EINVAL); } if (!voltdm->volt_data) { - pr_warning("%s: voltage table does not exist for vdd_%s\n", + pr_warn("%s: voltage table does not exist for vdd_%s\n", __func__, voltdm->name); return ERR_PTR(-ENODATA); } @@ -214,7 +214,7 @@ int omap_voltage_register_pmic(struct voltagedomain *voltdm, struct omap_voltdm_pmic *pmic) { if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return -EINVAL; } @@ -237,7 +237,7 @@ void omap_change_voltscale_method(struct voltagedomain *voltdm, int voltscale_method) { if (!voltdm || IS_ERR(voltdm)) { - pr_warning("%s: VDD specified does not exist!\n", __func__); + pr_warn("%s: VDD specified does not exist!\n", __func__); return; } @@ -279,7 +279,7 @@ int __init omap_voltage_late_init(void) sys_ck = clk_get(NULL, voltdm->sys_clk.name); if (IS_ERR(sys_ck)) { - pr_warning("%s: Could not get sys clk.\n", __func__); + pr_warn("%s: Could not get sys clk.\n", __func__); return -EINVAL; } voltdm->sys_clk.rate = clk_get_rate(sys_ck); diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c index 97d6607..ff0a68c 100644 --- a/arch/arm/mach-omap2/wd_timer.c +++ b/arch/arm/mach-omap2/wd_timer.c @@ -93,8 +93,8 @@ int omap2_wd_timer_reset(struct omap_hwmod *oh) udelay(oh->class->sysc->srst_udelay); if (c == MAX_MODULE_SOFTRESET_WAIT) - pr_warning("%s: %s: softreset failed (waited %d usec)\n", - __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); + pr_warn("%s: %s: softreset failed (waited %d usec)\n", + __func__, oh->name, MAX_MODULE_SOFTRESET_WAIT); else pr_debug("%s: %s: softreset in %d usec\n", __func__, oh->name, c); diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index 56edeab..09d2a26 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -550,7 +550,7 @@ static int __init dns323_identify_rev(void) break; } if (i >= 1000) { - pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n"); + pr_warn("DNS-323: Timeout accessing PHY, assuming rev B1\n"); return DNS323_REV_B1; } writel((3 << 21) /* phy ID reg */ | @@ -562,7 +562,7 @@ static int __init dns323_identify_rev(void) break; } if (i >= 1000) { - pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n"); + pr_warn("DNS-323: Timeout reading PHY, assuming rev B1\n"); return DNS323_REV_B1; } pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff); @@ -577,8 +577,8 @@ static int __init dns323_identify_rev(void) case 0x0e10: /* MV88E1118 */ return DNS323_REV_C1; default: - pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n", - reg & 0xffff); + pr_warn("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n", + reg & 0xffff); } return DNS323_REV_B1; } diff --git a/arch/arm/mach-orion5x/terastation_pro2-setup.c b/arch/arm/mach-orion5x/terastation_pro2-setup.c index 6208d12..1208674 100644 --- a/arch/arm/mach-orion5x/terastation_pro2-setup.c +++ b/arch/arm/mach-orion5x/terastation_pro2-setup.c @@ -349,7 +349,7 @@ static void __init tsp2_init(void) gpio_free(TSP2_RTC_GPIO); } if (tsp2_i2c_rtc.irq == 0) - pr_warning("tsp2_init: failed to get RTC IRQ\n"); + pr_warn("tsp2_init: failed to get RTC IRQ\n"); i2c_register_board_info(0, &tsp2_i2c_rtc, 1); /* register Terastation Pro II specific power-off method */ diff --git a/arch/arm/mach-orion5x/ts209-setup.c b/arch/arm/mach-orion5x/ts209-setup.c index 9136797..c725b7c 100644 --- a/arch/arm/mach-orion5x/ts209-setup.c +++ b/arch/arm/mach-orion5x/ts209-setup.c @@ -314,7 +314,7 @@ static void __init qnap_ts209_init(void) gpio_free(TS209_RTC_GPIO); } if (qnap_ts209_i2c_rtc.irq == 0) - pr_warning("qnap_ts209_init: failed to get RTC IRQ\n"); + pr_warn("qnap_ts209_init: failed to get RTC IRQ\n"); i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1); /* register tsx09 specific power-off method */ diff --git a/arch/arm/mach-orion5x/ts409-setup.c b/arch/arm/mach-orion5x/ts409-setup.c index 5c079d31..cf2ab53 100644 --- a/arch/arm/mach-orion5x/ts409-setup.c +++ b/arch/arm/mach-orion5x/ts409-setup.c @@ -302,7 +302,7 @@ static void __init qnap_ts409_init(void) gpio_free(TS409_RTC_GPIO); } if (qnap_ts409_i2c_rtc.irq == 0) - pr_warning("qnap_ts409_init: failed to get RTC IRQ\n"); + pr_warn("qnap_ts409_init: failed to get RTC IRQ\n"); i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1); platform_device_register(&ts409_leds); diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index db16dae..1b704d3 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -403,8 +403,8 @@ static void ts78xx_fpga_supports(void) /* enable devices if magic matches */ switch ((ts78xx_fpga.id >> 8) & 0xffffff) { case TS7800_FPGA_MAGIC: - pr_warning("unrecognised FPGA revision 0x%.2x\n", - ts78xx_fpga.id & 0xff); + pr_warn("unrecognised FPGA revision 0x%.2x\n", + ts78xx_fpga.id & 0xff); ts78xx_fpga.supports.ts_rtc.present = 1; ts78xx_fpga.supports.ts_nand.present = 1; ts78xx_fpga.supports.ts_rng.present = 1; diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index 630fa91..04b013f 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -61,7 +61,7 @@ EXPORT_SYMBOL(get_clock_tick_rate); /* * For non device-tree builds, keep legacy timer init */ -void pxa_timer_init(void) +void __init pxa_timer_init(void) { pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000), get_clock_tick_rate()); diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index ad5316a..9eb2229 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -32,7 +32,6 @@ config CPU_S3C2410 select S3C2410_DMA if S3C24XX_DMA select ARM_S3C2410_CPUFREQ if ARM_S3C24XX_CPUFREQ select S3C2410_PM if PM - select SAMSUNG_WDT_RESET help Support for S3C2410 and S3C2410A family from the S3C24XX line of Samsung Mobile CPUs. @@ -76,7 +75,6 @@ config CPU_S3C2442 config CPU_S3C244X def_bool y depends on CPU_S3C2440 || CPU_S3C2442 - select SAMSUNG_WDT_RESET config CPU_S3C2443 bool "SAMSUNG S3C2443" diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c index 44fa95d..bf50328 100644 --- a/arch/arm/mach-s3c24xx/common.c +++ b/arch/arm/mach-s3c24xx/common.c @@ -51,7 +51,6 @@ #include <plat/devs.h> #include <plat/cpu-freq.h> #include <plat/pwm-core.h> -#include <plat/watchdog-reset.h> #include "common.h" @@ -513,7 +512,6 @@ struct platform_device s3c2443_device_dma = { void __init s3c2410_init_clocks(int xtal) { s3c2410_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR); - samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); } #endif @@ -535,7 +533,6 @@ void __init s3c2416_init_clocks(int xtal) void __init s3c2440_init_clocks(int xtal) { s3c2410_common_clk_init(NULL, xtal, 1, S3C24XX_VA_CLKPWR); - samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); } #endif @@ -543,7 +540,6 @@ void __init s3c2440_init_clocks(int xtal) void __init s3c2442_init_clocks(int xtal) { s3c2410_common_clk_init(NULL, xtal, 2, S3C24XX_VA_CLKPWR); - samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); } #endif diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h index ac3ff12..c7ac7e6 100644 --- a/arch/arm/mach-s3c24xx/common.h +++ b/arch/arm/mach-s3c24xx/common.h @@ -22,7 +22,6 @@ extern int s3c2410a_init(void); extern void s3c2410_map_io(void); extern void s3c2410_init_uarts(struct s3c2410_uartcfg *cfg, int no); extern void s3c2410_init_clocks(int xtal); -extern void s3c2410_restart(enum reboot_mode mode, const char *cmd); extern void s3c2410_init_irq(void); #else #define s3c2410_init_clocks NULL @@ -38,7 +37,6 @@ extern void s3c2412_map_io(void); extern void s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no); extern void s3c2412_init_clocks(int xtal); extern int s3c2412_baseclk_add(void); -extern void s3c2412_restart(enum reboot_mode mode, const char *cmd); extern void s3c2412_init_irq(void); #else #define s3c2412_init_clocks NULL @@ -53,7 +51,6 @@ extern void s3c2416_map_io(void); extern void s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no); extern void s3c2416_init_clocks(int xtal); extern int s3c2416_baseclk_add(void); -extern void s3c2416_restart(enum reboot_mode mode, const char *cmd); extern void s3c2416_init_irq(void); extern struct syscore_ops s3c2416_irq_syscore_ops; @@ -67,7 +64,6 @@ extern struct syscore_ops s3c2416_irq_syscore_ops; #if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442) extern void s3c244x_map_io(void); extern void s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no); -extern void s3c244x_restart(enum reboot_mode mode, const char *cmd); #else #define s3c244x_init_uarts NULL #endif @@ -98,7 +94,6 @@ extern void s3c2443_map_io(void); extern void s3c2443_init_uarts(struct s3c2410_uartcfg *cfg, int no); extern void s3c2443_init_clocks(int xtal); extern int s3c2443_baseclk_add(void); -extern void s3c2443_restart(enum reboot_mode mode, const char *cmd); extern void s3c2443_init_irq(void); #else #define s3c2443_init_clocks NULL diff --git a/arch/arm/mach-s3c24xx/include/mach/regs-s3c2443-clock.h b/arch/arm/mach-s3c24xx/include/mach/regs-s3c2443-clock.h index c3feff3..ffe37bd 100644 --- a/arch/arm/mach-s3c24xx/include/mach/regs-s3c2443-clock.h +++ b/arch/arm/mach-s3c24xx/include/mach/regs-s3c2443-clock.h @@ -42,8 +42,6 @@ #define S3C2443_URSTCON S3C2443_CLKREG(0x88) #define S3C2443_UCLKCON S3C2443_CLKREG(0x8C) -#define S3C2443_SWRST_RESET (0x533c2443) - #define S3C2443_PLLCON_OFF (1<<24) #define S3C2443_CLKSRC_EPLLREF_XTAL (2<<7) diff --git a/arch/arm/mach-s3c24xx/mach-amlm5900.c b/arch/arm/mach-s3c24xx/mach-amlm5900.c index 5157e25..3e63777 100644 --- a/arch/arm/mach-s3c24xx/mach-amlm5900.c +++ b/arch/arm/mach-s3c24xx/mach-amlm5900.c @@ -247,5 +247,4 @@ MACHINE_START(AML_M5900, "AML_M5900") .init_irq = s3c2410_init_irq, .init_machine = amlm5900_init, .init_time = amlm5900_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-anubis.c b/arch/arm/mach-s3c24xx/mach-anubis.c index e053581..d03df0d 100644 --- a/arch/arm/mach-s3c24xx/mach-anubis.c +++ b/arch/arm/mach-s3c24xx/mach-anubis.c @@ -430,5 +430,4 @@ MACHINE_START(ANUBIS, "Simtec-Anubis") .init_machine = anubis_init, .init_irq = s3c2440_init_irq, .init_time = anubis_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-at2440evb.c b/arch/arm/mach-s3c24xx/mach-at2440evb.c index 9db768f..9ae170f 100644 --- a/arch/arm/mach-s3c24xx/mach-at2440evb.c +++ b/arch/arm/mach-s3c24xx/mach-at2440evb.c @@ -218,5 +218,4 @@ MACHINE_START(AT2440EVB, "AT2440EVB") .init_machine = at2440evb_init, .init_irq = s3c2440_init_irq, .init_time = at2440evb_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-bast.c b/arch/arm/mach-s3c24xx/mach-bast.c index f9112b8..ed07cf3 100644 --- a/arch/arm/mach-s3c24xx/mach-bast.c +++ b/arch/arm/mach-s3c24xx/mach-bast.c @@ -591,5 +591,4 @@ MACHINE_START(BAST, "Simtec-BAST") .init_irq = s3c2410_init_irq, .init_machine = bast_init, .init_time = bast_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-gta02.c b/arch/arm/mach-s3c24xx/mach-gta02.c index fc3a08d..6d1e0b9 100644 --- a/arch/arm/mach-s3c24xx/mach-gta02.c +++ b/arch/arm/mach-s3c24xx/mach-gta02.c @@ -597,5 +597,4 @@ MACHINE_START(NEO1973_GTA02, "GTA02") .init_irq = s3c2442_init_irq, .init_machine = gta02_machine_init, .init_time = gta02_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c index c9a99bb..d35ddc1 100644 --- a/arch/arm/mach-s3c24xx/mach-h1940.c +++ b/arch/arm/mach-s3c24xx/mach-h1940.c @@ -747,5 +747,4 @@ MACHINE_START(H1940, "IPAQ-H1940") .init_irq = s3c2410_init_irq, .init_machine = h1940_init, .init_time = h1940_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c index 7804d3c..7d99fe8 100644 --- a/arch/arm/mach-s3c24xx/mach-jive.c +++ b/arch/arm/mach-s3c24xx/mach-jive.c @@ -670,5 +670,4 @@ MACHINE_START(JIVE, "JIVE") .map_io = jive_map_io, .init_machine = jive_machine_init, .init_time = jive_init_time, - .restart = s3c2412_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c index 5cc40ec..a852168 100644 --- a/arch/arm/mach-s3c24xx/mach-mini2440.c +++ b/arch/arm/mach-s3c24xx/mach-mini2440.c @@ -695,5 +695,4 @@ MACHINE_START(MINI2440, "MINI2440") .init_machine = mini2440_init, .init_irq = s3c2440_init_irq, .init_time = mini2440_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-n30.c b/arch/arm/mach-s3c24xx/mach-n30.c index 3ac2a54..171c1f1 100644 --- a/arch/arm/mach-s3c24xx/mach-n30.c +++ b/arch/arm/mach-s3c24xx/mach-n30.c @@ -599,7 +599,6 @@ MACHINE_START(N30, "Acer-N30") .init_machine = n30_init, .init_irq = s3c2410_init_irq, .map_io = n30_map_io, - .restart = s3c2410_restart, MACHINE_END MACHINE_START(N35, "Acer-N35") @@ -610,5 +609,4 @@ MACHINE_START(N35, "Acer-N35") .init_machine = n30_init, .init_irq = s3c2410_init_irq, .map_io = n30_map_io, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-nexcoder.c b/arch/arm/mach-s3c24xx/mach-nexcoder.c index c82c281..2a61d13 100644 --- a/arch/arm/mach-s3c24xx/mach-nexcoder.c +++ b/arch/arm/mach-s3c24xx/mach-nexcoder.c @@ -159,5 +159,4 @@ MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440") .init_machine = nexcoder_init, .init_irq = s3c2440_init_irq, .init_time = nexcoder_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-osiris.c b/arch/arm/mach-s3c24xx/mach-osiris.c index 189147b..2f6fdc3 100644 --- a/arch/arm/mach-s3c24xx/mach-osiris.c +++ b/arch/arm/mach-s3c24xx/mach-osiris.c @@ -412,5 +412,4 @@ MACHINE_START(OSIRIS, "Simtec-OSIRIS") .init_irq = s3c2440_init_irq, .init_machine = osiris_init, .init_time = osiris_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-otom.c b/arch/arm/mach-s3c24xx/mach-otom.c index 4583300..345a484 100644 --- a/arch/arm/mach-s3c24xx/mach-otom.c +++ b/arch/arm/mach-s3c24xx/mach-otom.c @@ -122,5 +122,4 @@ MACHINE_START(OTOM, "Nex Vision - Otom 1.1") .init_machine = otom11_init, .init_irq = s3c2410_init_irq, .init_time = otom11_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-qt2410.c b/arch/arm/mach-s3c24xx/mach-qt2410.c index 228c909..984516e 100644 --- a/arch/arm/mach-s3c24xx/mach-qt2410.c +++ b/arch/arm/mach-s3c24xx/mach-qt2410.c @@ -352,5 +352,4 @@ MACHINE_START(QT2410, "QT2410") .init_irq = s3c2410_init_irq, .init_machine = qt2410_machine_init, .init_time = qt2410_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-rx1950.c b/arch/arm/mach-s3c24xx/mach-rx1950.c index e2c6541..c3f2682 100644 --- a/arch/arm/mach-s3c24xx/mach-rx1950.c +++ b/arch/arm/mach-s3c24xx/mach-rx1950.c @@ -812,5 +812,4 @@ MACHINE_START(RX1950, "HP iPAQ RX1950") .init_irq = s3c2442_init_irq, .init_machine = rx1950_init_machine, .init_time = rx1950_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-rx3715.c b/arch/arm/mach-s3c24xx/mach-rx3715.c index 6e749ec..cf55196 100644 --- a/arch/arm/mach-s3c24xx/mach-rx3715.c +++ b/arch/arm/mach-s3c24xx/mach-rx3715.c @@ -215,5 +215,4 @@ MACHINE_START(RX3715, "IPAQ-RX3715") .init_irq = s3c2440_init_irq, .init_machine = rx3715_init_machine, .init_time = rx3715_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c index e4dcb9a..f886478 100644 --- a/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c +++ b/arch/arm/mach-s3c24xx/mach-s3c2416-dt.c @@ -51,5 +51,4 @@ DT_MACHINE_START(S3C2416_DT, "Samsung S3C2416 (Flattened Device Tree)") .map_io = s3c2416_dt_map_io, .init_irq = irqchip_init, .init_machine = s3c2416_dt_machine_init, - .restart = s3c2416_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-smdk2410.c b/arch/arm/mach-s3c24xx/mach-smdk2410.c index 419fadd..27dd660 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2410.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2410.c @@ -124,5 +124,4 @@ MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switc .init_irq = s3c2410_init_irq, .init_machine = smdk2410_init, .init_time = smdk2410_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-smdk2413.c b/arch/arm/mach-s3c24xx/mach-smdk2413.c index 10726bf..586e4a3 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2413.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2413.c @@ -138,7 +138,6 @@ MACHINE_START(S3C2413, "S3C2413") .map_io = smdk2413_map_io, .init_machine = smdk2413_machine_init, .init_time = samsung_timer_init, - .restart = s3c2412_restart, MACHINE_END MACHINE_START(SMDK2412, "SMDK2412") @@ -150,7 +149,6 @@ MACHINE_START(SMDK2412, "SMDK2412") .map_io = smdk2413_map_io, .init_machine = smdk2413_machine_init, .init_time = samsung_timer_init, - .restart = s3c2412_restart, MACHINE_END MACHINE_START(SMDK2413, "SMDK2413") @@ -162,5 +160,4 @@ MACHINE_START(SMDK2413, "SMDK2413") .map_io = smdk2413_map_io, .init_machine = smdk2413_machine_init, .init_time = smdk2413_init_time, - .restart = s3c2412_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-smdk2416.c b/arch/arm/mach-s3c24xx/mach-smdk2416.c index 24189e8..86394f7 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2416.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2416.c @@ -262,5 +262,4 @@ MACHINE_START(SMDK2416, "SMDK2416") .map_io = smdk2416_map_io, .init_machine = smdk2416_machine_init, .init_time = smdk2416_init_time, - .restart = s3c2416_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-smdk2440.c b/arch/arm/mach-s3c24xx/mach-smdk2440.c index 5fb89c0a..9bb96bf 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2440.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2440.c @@ -185,5 +185,4 @@ MACHINE_START(S3C2440, "SMDK2440") .map_io = smdk2440_map_io, .init_machine = smdk2440_machine_init, .init_time = smdk2440_init_time, - .restart = s3c244x_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-smdk2443.c b/arch/arm/mach-s3c24xx/mach-smdk2443.c index 0ed7761..87fe5c5 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2443.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2443.c @@ -150,5 +150,4 @@ MACHINE_START(SMDK2443, "SMDK2443") .map_io = smdk2443_map_io, .init_machine = smdk2443_machine_init, .init_time = smdk2443_init_time, - .restart = s3c2443_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-tct_hammer.c b/arch/arm/mach-s3c24xx/mach-tct_hammer.c index c616ca2..2deb62f 100644 --- a/arch/arm/mach-s3c24xx/mach-tct_hammer.c +++ b/arch/arm/mach-s3c24xx/mach-tct_hammer.c @@ -157,5 +157,4 @@ MACHINE_START(TCT_HAMMER, "TCT_HAMMER") .init_irq = s3c2410_init_irq, .init_machine = tct_hammer_init, .init_time = tct_hammer_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-vr1000.c b/arch/arm/mach-s3c24xx/mach-vr1000.c index f88c584..89f32bd 100644 --- a/arch/arm/mach-s3c24xx/mach-vr1000.c +++ b/arch/arm/mach-s3c24xx/mach-vr1000.c @@ -340,5 +340,4 @@ MACHINE_START(VR1000, "Thorcom-VR1000") .init_machine = vr1000_init, .init_irq = s3c2410_init_irq, .init_time = vr1000_init_time, - .restart = s3c2410_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/mach-vstms.c b/arch/arm/mach-s3c24xx/mach-vstms.c index 9d4f647..b4460d5 100644 --- a/arch/arm/mach-s3c24xx/mach-vstms.c +++ b/arch/arm/mach-s3c24xx/mach-vstms.c @@ -165,5 +165,4 @@ MACHINE_START(VSTMS, "VSTMS") .init_machine = vstms_init, .map_io = vstms_map_io, .init_time = vstms_init_time, - .restart = s3c2412_restart, MACHINE_END diff --git a/arch/arm/mach-s3c24xx/s3c2410.c b/arch/arm/mach-s3c24xx/s3c2410.c index 5ffe828..2a6985a 100644 --- a/arch/arm/mach-s3c24xx/s3c2410.c +++ b/arch/arm/mach-s3c24xx/s3c2410.c @@ -42,7 +42,6 @@ #include <plat/cpu.h> #include <plat/devs.h> #include <plat/pm.h> -#include <plat/watchdog-reset.h> #include <plat/gpio-core.h> #include <plat/gpio-cfg.h> @@ -135,15 +134,3 @@ int __init s3c2410a_init(void) s3c2410_dev.bus = &s3c2410a_subsys; return s3c2410_init(); } - -void s3c2410_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode == REBOOT_SOFT) { - soft_restart(0); - } - - samsung_wdt_reset(); - - /* we'll take a jump through zero as a poor second */ - soft_restart(0); -} diff --git a/arch/arm/mach-s3c24xx/s3c2412.c b/arch/arm/mach-s3c24xx/s3c2412.c index 569f3f5..ecf2c77 100644 --- a/arch/arm/mach-s3c24xx/s3c2412.c +++ b/arch/arm/mach-s3c24xx/s3c2412.c @@ -48,9 +48,6 @@ #include "regs-dsc.h" #include "s3c2412-power.h" -#define S3C2412_SWRST (S3C24XX_VA_CLKPWR + 0x30) -#define S3C2412_SWRST_RESET (0x533C2412) - #ifndef CONFIG_CPU_S3C2412_ONLY void __iomem *s3c24xx_va_gpio2 = S3C24XX_VA_GPIO; @@ -128,26 +125,6 @@ static void s3c2412_idle(void) cpu_do_idle(); } -void s3c2412_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode == REBOOT_SOFT) - soft_restart(0); - - /* errata "Watch-dog/Software Reset Problem" specifies that - * this reset must be done with the SYSCLK sourced from - * EXTCLK instead of FOUT to avoid a glitch in the reset - * mechanism. - * - * See the watchdog section of the S3C2412 manual for more - * information on this fix. - */ - - __raw_writel(0x00, S3C2412_CLKSRC); - __raw_writel(S3C2412_SWRST_RESET, S3C2412_SWRST); - - mdelay(1); -} - /* s3c2412_map_io * * register the standard cpu IO areas, and any passed in from the diff --git a/arch/arm/mach-s3c24xx/s3c2416.c b/arch/arm/mach-s3c24xx/s3c2416.c index 9fe260a..bfd4da8 100644 --- a/arch/arm/mach-s3c24xx/s3c2416.c +++ b/arch/arm/mach-s3c24xx/s3c2416.c @@ -81,14 +81,6 @@ static struct device s3c2416_dev = { .bus = &s3c2416_subsys, }; -void s3c2416_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode == REBOOT_SOFT) - soft_restart(0); - - __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); -} - int __init s3c2416_init(void) { printk(KERN_INFO "S3C2416: Initializing architecture\n"); diff --git a/arch/arm/mach-s3c24xx/s3c2443.c b/arch/arm/mach-s3c24xx/s3c2443.c index c7a804d..87b6b89 100644 --- a/arch/arm/mach-s3c24xx/s3c2443.c +++ b/arch/arm/mach-s3c24xx/s3c2443.c @@ -61,14 +61,6 @@ static struct device s3c2443_dev = { .bus = &s3c2443_subsys, }; -void s3c2443_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode == REBOOT_SOFT) - soft_restart(0); - - __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); -} - int __init s3c2443_init(void) { printk("S3C2443: Initialising architecture\n"); diff --git a/arch/arm/mach-s3c24xx/s3c244x.c b/arch/arm/mach-s3c24xx/s3c244x.c index d1c3e65..177f978 100644 --- a/arch/arm/mach-s3c24xx/s3c244x.c +++ b/arch/arm/mach-s3c24xx/s3c244x.c @@ -42,7 +42,6 @@ #include <plat/cpu.h> #include <plat/pm.h> #include <plat/nand-core.h> -#include <plat/watchdog-reset.h> #include "common.h" #include "regs-dsc.h" @@ -137,14 +136,3 @@ struct syscore_ops s3c244x_pm_syscore_ops = { .suspend = s3c244x_suspend, .resume = s3c244x_resume, }; - -void s3c244x_restart(enum reboot_mode mode, const char *cmd) -{ - if (mode == REBOOT_SOFT) - soft_restart(0); - - samsung_wdt_reset(); - - /* we'll take a jump through zero as a poor second */ - soft_restart(0); -} diff --git a/arch/arm/mach-s5pv210/pm.c b/arch/arm/mach-s5pv210/pm.c index 123163d..21b4b13 100644 --- a/arch/arm/mach-s5pv210/pm.c +++ b/arch/arm/mach-s5pv210/pm.c @@ -24,9 +24,8 @@ #include <plat/pm-common.h> -#include <mach/regs-clock.h> - #include "common.h" +#include "regs-clock.h" static struct sleep_save s5pv210_core_save[] = { /* Clock ETC */ diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/regs-clock.h index b14ffcd..4640f0f 100644 --- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h +++ b/arch/arm/mach-s5pv210/regs-clock.h @@ -1,5 +1,4 @@ -/* linux/arch/arm/mach-s5pv210/include/mach/regs-clock.h - * +/* * Copyright (c) 2010 Samsung Electronics Co., Ltd. * http://www.samsung.com/ * diff --git a/arch/arm/mach-s5pv210/s5pv210.c b/arch/arm/mach-s5pv210/s5pv210.c index 53feff3..43eb1ea 100644 --- a/arch/arm/mach-s5pv210/s5pv210.c +++ b/arch/arm/mach-s5pv210/s5pv210.c @@ -18,9 +18,9 @@ #include <asm/system_misc.h> #include <plat/map-base.h> -#include <mach/regs-clock.h> #include "common.h" +#include "regs-clock.h" static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname, int depth, void *data) diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig index 04f9784..c6f6ed1 100644 --- a/arch/arm/mach-sa1100/Kconfig +++ b/arch/arm/mach-sa1100/Kconfig @@ -58,6 +58,7 @@ config SA1100_H3100 bool "Compaq iPAQ H3100" select ARM_SA1110_CPUFREQ select HTC_EGPIO + select MFD_IPAQ_MICRO help Say Y here if you intend to run this kernel on the Compaq iPAQ H3100 handheld computer. Information about this machine and the @@ -69,6 +70,7 @@ config SA1100_H3600 bool "Compaq iPAQ H3600/H3700" select ARM_SA1110_CPUFREQ select HTC_EGPIO + select MFD_IPAQ_MICRO help Say Y here if you intend to run this kernel on the Compaq iPAQ H3600 handheld computer. Information about this machine and the diff --git a/arch/arm/mach-sa1100/h3xxx.c b/arch/arm/mach-sa1100/h3xxx.c index c79bf46..b1d4faa 100644 --- a/arch/arm/mach-sa1100/h3xxx.c +++ b/arch/arm/mach-sa1100/h3xxx.c @@ -25,6 +25,7 @@ #include <asm/mach/map.h> #include <mach/h3xxx.h> +#include <mach/irqs.h> #include "generic.h" @@ -244,9 +245,23 @@ static struct platform_device h3xxx_keys = { }, }; +static struct resource h3xxx_micro_resources[] = { + DEFINE_RES_MEM(0x80010000, SZ_4K), + DEFINE_RES_MEM(0x80020000, SZ_4K), + DEFINE_RES_IRQ(IRQ_Ser1UART), +}; + +struct platform_device h3xxx_micro_asic = { + .name = "ipaq-h3xxx-micro", + .id = -1, + .resource = h3xxx_micro_resources, + .num_resources = ARRAY_SIZE(h3xxx_micro_resources), +}; + static struct platform_device *h3xxx_devices[] = { &h3xxx_egpio, &h3xxx_keys, + &h3xxx_micro_asic, }; void __init h3xxx_mach_init(void) diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index 8bd5bf2..21f457b 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -1,6 +1,30 @@ config ARCH_SHMOBILE bool +config PM_RCAR + bool + +config PM_RMOBILE + bool + +config ARCH_RCAR_GEN1 + bool + select PM_RCAR if PM || SMP + select RENESAS_INTC_IRQPIN + select SYS_SUPPORTS_SH_TMU + +config ARCH_RCAR_GEN2 + bool + select PM_RCAR if PM || SMP + select RENESAS_IRQC + select SYS_SUPPORTS_SH_CMT + +config ARCH_RMOBILE + bool + select PM_RMOBILE if PM && !ARCH_SHMOBILE_MULTI + select SYS_SUPPORTS_SH_CMT + select SYS_SUPPORTS_SH_TMU + menuconfig ARCH_SHMOBILE_MULTI bool "Renesas ARM SoCs" if ARCH_MULTI_V7 depends on MMU @@ -33,18 +57,15 @@ config ARCH_R8A7740 config ARCH_R8A7779 bool "R-Car H1 (R8A77790)" - select RENESAS_INTC_IRQPIN - select SYS_SUPPORTS_SH_TMU + select ARCH_RCAR_GEN1 config ARCH_R8A7790 bool "R-Car H2 (R8A77900)" - select RENESAS_IRQC - select SYS_SUPPORTS_SH_CMT + select ARCH_RCAR_GEN2 config ARCH_R8A7791 - bool "R-Car M2 (R8A77910)" - select RENESAS_IRQC - select SYS_SUPPORTS_SH_CMT + bool "R-Car M2-W (R8A77910)" + select ARCH_RCAR_GEN2 config ARCH_R8A7794 bool "R-Car E2 (R8A77940)" @@ -76,84 +97,60 @@ comment "Renesas ARM SoCs System Type" config ARCH_SH7372 bool "SH-Mobile AP4 (SH7372)" + select ARCH_RMOBILE select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_CPU_SUSPEND if PM || CPU_IDLE - select CPU_V7 - select SH_CLK_CPG select SH_INTC - select SYS_SUPPORTS_SH_CMT - select SYS_SUPPORTS_SH_TMU config ARCH_SH73A0 bool "SH-Mobile AG5 (R8A73A00)" + select ARCH_RMOBILE select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 select I2C - select SH_CLK_CPG select SH_INTC select RENESAS_INTC_IRQPIN - select SYS_SUPPORTS_SH_CMT - select SYS_SUPPORTS_SH_TMU config ARCH_R8A73A4 bool "R-Mobile APE6 (R8A73A40)" + select ARCH_RMOBILE select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 - select SH_CLK_CPG select RENESAS_IRQC - select SYS_SUPPORTS_SH_CMT - select SYS_SUPPORTS_SH_TMU config ARCH_R8A7740 bool "R-Mobile A1 (R8A77400)" + select ARCH_RMOBILE select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 - select SH_CLK_CPG select RENESAS_INTC_IRQPIN - select SYS_SUPPORTS_SH_CMT - select SYS_SUPPORTS_SH_TMU config ARCH_R8A7778 bool "R-Car M1A (R8A77781)" + select ARCH_RCAR_GEN1 select ARCH_WANT_OPTIONAL_GPIOLIB - select CPU_V7 - select SH_CLK_CPG select ARM_GIC - select SYS_SUPPORTS_SH_TMU - select RENESAS_INTC_IRQPIN config ARCH_R8A7779 bool "R-Car H1 (R8A77790)" + select ARCH_RCAR_GEN1 select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 - select SH_CLK_CPG - select RENESAS_INTC_IRQPIN - select SYS_SUPPORTS_SH_TMU config ARCH_R8A7790 bool "R-Car H2 (R8A77900)" + select ARCH_RCAR_GEN2 select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 select MIGHT_HAVE_PCI - select SH_CLK_CPG - select RENESAS_IRQC - select SYS_SUPPORTS_SH_CMT select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE config ARCH_R8A7791 - bool "R-Car M2 (R8A77910)" + bool "R-Car M2-W (R8A77910)" + select ARCH_RCAR_GEN2 select ARCH_WANT_OPTIONAL_GPIOLIB select ARM_GIC - select CPU_V7 select MIGHT_HAVE_PCI - select SH_CLK_CPG - select RENESAS_IRQC - select SYS_SUPPORTS_SH_CMT select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE comment "Renesas ARM SoCs Board Type" diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index d7337a5..e20f278 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -6,15 +6,14 @@ obj-y := timer.o console.o # CPU objects -obj-$(CONFIG_ARCH_SH7372) += setup-sh7372.o intc-sh7372.o -obj-$(CONFIG_ARCH_SH73A0) += setup-sh73a0.o intc-sh73a0.o +obj-$(CONFIG_ARCH_SH7372) += setup-sh7372.o intc-sh7372.o pm-sh7372.o +obj-$(CONFIG_ARCH_SH73A0) += setup-sh73a0.o intc-sh73a0.o pm-sh73a0.o obj-$(CONFIG_ARCH_R8A73A4) += setup-r8a73a4.o -obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o +obj-$(CONFIG_ARCH_R8A7740) += setup-r8a7740.o pm-r8a7740.o obj-$(CONFIG_ARCH_R8A7778) += setup-r8a7778.o -obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o -obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o -obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o setup-rcar-gen2.o -obj-$(CONFIG_ARCH_R8A7791) += setup-r8a7791.o setup-rcar-gen2.o +obj-$(CONFIG_ARCH_R8A7779) += setup-r8a7779.o pm-r8a7779.o +obj-$(CONFIG_ARCH_R8A7790) += setup-r8a7790.o pm-r8a7790.o +obj-$(CONFIG_ARCH_R8A7791) += setup-r8a7791.o pm-r8a7791.o obj-$(CONFIG_ARCH_R8A7794) += setup-r8a7794.o obj-$(CONFIG_ARCH_EMEV2) += setup-emev2.o obj-$(CONFIG_ARCH_R7S72100) += setup-r7s72100.o @@ -34,8 +33,9 @@ endif # CPU reset vector handling objects cpu-y := platsmp.o headsmp.o -cpu-$(CONFIG_ARCH_R8A7790) += platsmp-apmu.o -cpu-$(CONFIG_ARCH_R8A7791) += platsmp-apmu.o + +# Shared SoC family objects +obj-$(CONFIG_ARCH_RCAR_GEN2) += setup-rcar-gen2.o platsmp-apmu.o $(cpu-y) # SMP objects smp-y := $(cpu-y) @@ -49,15 +49,11 @@ smp-$(CONFIG_ARCH_EMEV2) += smp-emev2.o headsmp-scu.o platsmp-scu.o obj-$(CONFIG_SUSPEND) += suspend.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_CPU_FREQ) += cpufreq.o -obj-$(CONFIG_ARCH_SH7372) += pm-sh7372.o sleep-sh7372.o pm-rmobile.o -obj-$(CONFIG_ARCH_SH73A0) += pm-sh73a0.o -obj-$(CONFIG_ARCH_R8A7740) += pm-r8a7740.o pm-rmobile.o -obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779.o pm-rcar.o -obj-$(CONFIG_ARCH_R8A7790) += pm-r8a7790.o pm-rcar.o $(cpu-y) -obj-$(CONFIG_ARCH_R8A7791) += pm-r8a7791.o pm-rcar.o $(cpu-y) +obj-$(CONFIG_PM_RCAR) += pm-rcar.o +obj-$(CONFIG_PM_RMOBILE) += pm-rmobile.o -# IRQ objects -obj-$(CONFIG_ARCH_SH7372) += entry-intc.o +# special sh7372 handling for IRQ objects and low level sleep code +obj-$(CONFIG_ARCH_SH7372) += entry-intc.o sleep-sh7372.o # Board objects ifdef CONFIG_ARCH_SHMOBILE_MULTI diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index 6dbaad6..e709835 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -1231,6 +1231,10 @@ clock_error: #define GPIO_PORT8CR IOMEM(0xe6050008) static void __init eva_init(void) { + static struct pm_domain_device domain_devices[] __initdata = { + { "A4LC", &lcdc0_device }, + { "A4LC", &hdmi_lcdc_device }, + }; struct platform_device *usb = NULL; regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, @@ -1316,8 +1320,8 @@ static void __init eva_init(void) platform_add_devices(eva_devices, ARRAY_SIZE(eva_devices)); - rmobile_add_device_to_domain("A4LC", &lcdc0_device); - rmobile_add_device_to_domain("A4LC", &hdmi_lcdc_device); + rmobile_add_devices_to_domains(domain_devices, + ARRAY_SIZE(domain_devices)); if (usb) rmobile_add_device_to_domain("A3SP", usb); diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index b7c4261..ca5d34b 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -1421,7 +1421,7 @@ static const struct pinctrl_map mackerel_pinctrl_map[] = { #define USCCR1 IOMEM(0xE6058144) static void __init mackerel_init(void) { - struct pm_domain_device domain_devices[] = { + static struct pm_domain_device domain_devices[] __initdata = { { "A4LC", &lcdc_device, }, { "A4LC", &hdmi_lcdc_device, }, { "A4LC", &meram_device, }, diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c index 7b90550..e3f1464 100644 --- a/arch/arm/mach-shmobile/pm-r8a7740.c +++ b/arch/arm/mach-shmobile/pm-r8a7740.c @@ -34,23 +34,21 @@ static int r8a7740_pd_a3sp_suspend(void) static struct rmobile_pm_domain r8a7740_pm_domains[] = { { + .genpd.name = "A4LC", + .bit_shift = 1, + }, { .genpd.name = "A4S", .bit_shift = 10, .gov = &pm_domain_always_on_gov, .no_debug = true, .suspend = r8a7740_pd_a4s_suspend, - }, - { + }, { .genpd.name = "A3SP", .bit_shift = 11, .gov = &pm_domain_always_on_gov, .no_debug = true, .suspend = r8a7740_pd_a3sp_suspend, }, - { - .genpd.name = "A4LC", - .bit_shift = 1, - }, }; void __init r8a7740_init_pm_domains(void) diff --git a/arch/arm/mach-shmobile/pm-rcar.c b/arch/arm/mach-shmobile/pm-rcar.c index 34b8a56..00022ee 100644 --- a/arch/arm/mach-shmobile/pm-rcar.c +++ b/arch/arm/mach-shmobile/pm-rcar.c @@ -31,8 +31,6 @@ #define SYSCISR_RETRIES 1000 #define SYSCISR_DELAY_US 1 -#if defined(CONFIG_PM) || defined(CONFIG_SMP) - static void __iomem *rcar_sysc_base; static DEFINE_SPINLOCK(rcar_sysc_lock); /* SMP CPUs + I/O devices */ @@ -137,5 +135,3 @@ void __iomem *rcar_sysc_init(phys_addr_t base) return rcar_sysc_base; } - -#endif /* CONFIG_PM || CONFIG_SMP */ diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c index ebdd16e..a88079a 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.c +++ b/arch/arm/mach-shmobile/pm-rmobile.c @@ -27,7 +27,6 @@ #define PSTR_RETRIES 100 #define PSTR_DELAY_US 10 -#ifdef CONFIG_PM static int rmobile_pd_power_down(struct generic_pm_domain *genpd) { struct rmobile_pm_domain *rmobile_pd = to_rmobile_pd(genpd); @@ -151,4 +150,3 @@ void rmobile_add_devices_to_domains(struct pm_domain_device data[], rmobile_add_device_to_domain_td(data[j].domain_name, data[j].pdev, &latencies); } -#endif /* CONFIG_PM */ diff --git a/arch/arm/mach-shmobile/pm-rmobile.h b/arch/arm/mach-shmobile/pm-rmobile.h index 690553a..8f66b34 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.h +++ b/arch/arm/mach-shmobile/pm-rmobile.h @@ -36,7 +36,7 @@ struct pm_domain_device { struct platform_device *pdev; }; -#ifdef CONFIG_PM +#ifdef CONFIG_PM_RMOBILE extern void rmobile_init_domains(struct rmobile_pm_domain domains[], int num); extern void rmobile_add_device_to_domain_td(const char *domain_name, struct platform_device *pdev, @@ -58,6 +58,6 @@ extern void rmobile_add_devices_to_domains(struct pm_domain_device data[], static inline void rmobile_add_devices_to_domains(struct pm_domain_device d[], int size) {} -#endif /* CONFIG_PM */ +#endif /* CONFIG_PM_RMOBILE */ #endif /* PM_RMOBILE_H */ diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index daea3a3..8894e1b 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -745,6 +745,19 @@ static void r8a7740_i2c_workaround(struct platform_device *pdev) void __init r8a7740_add_standard_devices(void) { + static struct pm_domain_device domain_devices[] __initdata = { + { "A3SP", &scif0_device }, + { "A3SP", &scif1_device }, + { "A3SP", &scif2_device }, + { "A3SP", &scif3_device }, + { "A3SP", &scif4_device }, + { "A3SP", &scif5_device }, + { "A3SP", &scif6_device }, + { "A3SP", &scif7_device }, + { "A3SP", &scif8_device }, + { "A3SP", &i2c1_device }, + }; + /* I2C work-around */ r8a7740_i2c_workaround(&i2c0_device); r8a7740_i2c_workaround(&i2c1_device); @@ -758,17 +771,8 @@ void __init r8a7740_add_standard_devices(void) ARRAY_SIZE(r8a7740_late_devices)); /* add devices to PM domain */ - - rmobile_add_device_to_domain("A3SP", &scif0_device); - rmobile_add_device_to_domain("A3SP", &scif1_device); - rmobile_add_device_to_domain("A3SP", &scif2_device); - rmobile_add_device_to_domain("A3SP", &scif3_device); - rmobile_add_device_to_domain("A3SP", &scif4_device); - rmobile_add_device_to_domain("A3SP", &scif5_device); - rmobile_add_device_to_domain("A3SP", &scif6_device); - rmobile_add_device_to_domain("A3SP", &scif7_device); - rmobile_add_device_to_domain("A3SP", &scif8_device); - rmobile_add_device_to_domain("A3SP", &i2c1_device); + rmobile_add_devices_to_domains(domain_devices, + ARRAY_SIZE(domain_devices)); } void __init r8a7740_add_early_devices(void) diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c index ea63fbe..d646c8d 100644 --- a/arch/arm/mach-shmobile/setup-sh7372.c +++ b/arch/arm/mach-shmobile/setup-sh7372.c @@ -928,7 +928,7 @@ static struct platform_device *sh7372_late_devices[] __initdata = { void __init sh7372_add_standard_devices(void) { - struct pm_domain_device domain_devices[] = { + static struct pm_domain_device domain_devices[] __initdata = { { "A3RV", &vpu_device, }, { "A4MP", &spu0_device, }, { "A4MP", &spu1_device, }, diff --git a/arch/arm/mach-spear/Kconfig b/arch/arm/mach-spear/Kconfig index 6fd4dc8..b6f4bda2 100644 --- a/arch/arm/mach-spear/Kconfig +++ b/arch/arm/mach-spear/Kconfig @@ -4,7 +4,6 @@ menuconfig PLAT_SPEAR bool "ST SPEAr Family" if ARCH_MULTI_V7 || ARCH_MULTI_V5 - default PLAT_SPEAR_SINGLE select ARCH_REQUIRE_GPIOLIB select ARM_AMBA select CLKSRC_MMIO @@ -13,7 +12,7 @@ if PLAT_SPEAR config ARCH_SPEAR13XX bool "ST SPEAr13xx" - depends on ARCH_MULTI_V7 || PLAT_SPEAR_SINGLE + depends on ARCH_MULTI_V7 select ARM_GIC select GPIO_SPEAR_SPICS select HAVE_ARM_SCU if SMP @@ -44,7 +43,7 @@ endif #ARCH_SPEAR13XX config ARCH_SPEAR3XX bool "ST SPEAr3xx" - depends on ARCH_MULTI_V5 || PLAT_SPEAR_SINGLE + depends on ARCH_MULTI_V5 depends on !ARCH_SPEAR13XX select ARM_VIC select PINCTRL @@ -75,7 +74,7 @@ endif config ARCH_SPEAR6XX bool "ST SPEAr6XX" - depends on ARCH_MULTI_V5 || PLAT_SPEAR_SINGLE + depends on ARCH_MULTI_V5 depends on !ARCH_SPEAR13XX select ARM_VIC help @@ -88,7 +87,7 @@ config MACH_SPEAR600 Supports ST SPEAr600 boards configured via the device-tree config ARCH_SPEAR_AUTO - def_bool PLAT_SPEAR_SINGLE + bool depends on !ARCH_SPEAR13XX && !ARCH_SPEAR6XX select ARCH_SPEAR3XX diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c index 42d4753..d7598ae 100644 --- a/arch/arm/mach-sunxi/sunxi.c +++ b/arch/arm/mach-sunxi/sunxi.c @@ -12,81 +12,9 @@ #include <linux/clk-provider.h> #include <linux/clocksource.h> -#include <linux/delay.h> -#include <linux/kernel.h> #include <linux/init.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <linux/of_platform.h> -#include <linux/io.h> -#include <linux/reboot.h> #include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/system_misc.h> - -#define SUN4I_WATCHDOG_CTRL_REG 0x00 -#define SUN4I_WATCHDOG_CTRL_RESTART BIT(0) -#define SUN4I_WATCHDOG_MODE_REG 0x04 -#define SUN4I_WATCHDOG_MODE_ENABLE BIT(0) -#define SUN4I_WATCHDOG_MODE_RESET_ENABLE BIT(1) - -#define SUN6I_WATCHDOG1_IRQ_REG 0x00 -#define SUN6I_WATCHDOG1_CTRL_REG 0x10 -#define SUN6I_WATCHDOG1_CTRL_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_REG 0x14 -#define SUN6I_WATCHDOG1_CONFIG_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_IRQ BIT(1) -#define SUN6I_WATCHDOG1_MODE_REG 0x18 -#define SUN6I_WATCHDOG1_MODE_ENABLE BIT(0) - -static void __iomem *wdt_base; - -static void sun4i_restart(enum reboot_mode mode, const char *cmd) -{ - if (!wdt_base) - return; - - /* Enable timer and set reset bit in the watchdog */ - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - - /* - * Restart the watchdog. The default (and lowest) interval - * value for the watchdog is 0.5s. - */ - writel(SUN4I_WATCHDOG_CTRL_RESTART, wdt_base + SUN4I_WATCHDOG_CTRL_REG); - - while (1) { - mdelay(5); - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - } -} - -static struct of_device_id sunxi_restart_ids[] = { - { .compatible = "allwinner,sun4i-a10-wdt" }, - { /*sentinel*/ } -}; - -static void sunxi_setup_restart(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, sunxi_restart_ids); - if (WARN(!np, "unable to setup watchdog restart")) - return; - - wdt_base = of_iomap(np, 0); - WARN(!wdt_base, "failed to map watchdog base address"); -} - -static void __init sunxi_dt_init(void) -{ - sunxi_setup_restart(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} static const char * const sunxi_board_dt_compat[] = { "allwinner,sun4i-a10", @@ -96,9 +24,7 @@ static const char * const sunxi_board_dt_compat[] = { }; DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)") - .init_machine = sunxi_dt_init, .dt_compat = sunxi_board_dt_compat, - .restart = sun4i_restart, MACHINE_END static const char * const sun6i_board_dt_compat[] = { @@ -126,9 +52,7 @@ static const char * const sun7i_board_dt_compat[] = { }; DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family") - .init_machine = sunxi_dt_init, .dt_compat = sun7i_board_dt_compat, - .restart = sun4i_restart, MACHINE_END static const char * const sun8i_board_dt_compat[] = { diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c index 2da7be3..3bc0dc9 100644 --- a/arch/arm/mach-vt8500/vt8500.c +++ b/arch/arm/mach-vt8500/vt8500.c @@ -69,7 +69,7 @@ static void vt8500_power_off(void) { local_irq_disable(); writew(5, pmc_base + VT8500_HCR_REG); - asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0)); + asm("mcr p15, 0, %0, c7, c0, 4" : : "r" (0)); } static void __init vt8500_init(void) diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index 0c1ab49..83792f4 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -41,6 +41,7 @@ * This code is not portable to processors with late data abort handling. */ #define CODING_BITS(i) (i & 0x0e000000) +#define COND_BITS(i) (i & 0xf0000000) #define LDST_I_BIT(i) (i & (1 << 26)) /* Immediate constant */ #define LDST_P_BIT(i) (i & (1 << 24)) /* Preindex */ @@ -821,6 +822,8 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs) break; case 0x04000000: /* ldr or str immediate */ + if (COND_BITS(instr) == 0xf0000000) /* NEON VLDn, VSTn */ + goto bad; offset.un = OFFSET_BITS(instr); handler = do_alignment_ldrstr; break; diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 5f2c988..55f9d6e 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -21,6 +21,7 @@ #include <linux/init.h> #include <linux/smp.h> #include <linux/spinlock.h> +#include <linux/log2.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> @@ -945,6 +946,98 @@ static int l2_wt_override; * pass it though the device tree */ static u32 cache_id_part_number_from_dt; +/** + * l2x0_cache_size_of_parse() - read cache size parameters from DT + * @np: the device tree node for the l2 cache + * @aux_val: pointer to machine-supplied auxilary register value, to + * be augmented by the call (bits to be set to 1) + * @aux_mask: pointer to machine-supplied auxilary register mask, to + * be augmented by the call (bits to be set to 0) + * @associativity: variable to return the calculated associativity in + * @max_way_size: the maximum size in bytes for the cache ways + */ +static void __init l2x0_cache_size_of_parse(const struct device_node *np, + u32 *aux_val, u32 *aux_mask, + u32 *associativity, + u32 max_way_size) +{ + u32 mask = 0, val = 0; + u32 cache_size = 0, sets = 0; + u32 way_size_bits = 1; + u32 way_size = 0; + u32 block_size = 0; + u32 line_size = 0; + + of_property_read_u32(np, "cache-size", &cache_size); + of_property_read_u32(np, "cache-sets", &sets); + of_property_read_u32(np, "cache-block-size", &block_size); + of_property_read_u32(np, "cache-line-size", &line_size); + + if (!cache_size || !sets) + return; + + /* All these l2 caches have the same line = block size actually */ + if (!line_size) { + if (block_size) { + /* If linesize if not given, it is equal to blocksize */ + line_size = block_size; + } else { + /* Fall back to known size */ + pr_warn("L2C OF: no cache block/line size given: " + "falling back to default size %d bytes\n", + CACHE_LINE_SIZE); + line_size = CACHE_LINE_SIZE; + } + } + + if (line_size != CACHE_LINE_SIZE) + pr_warn("L2C OF: DT supplied line size %d bytes does " + "not match hardware line size of %d bytes\n", + line_size, + CACHE_LINE_SIZE); + + /* + * Since: + * set size = cache size / sets + * ways = cache size / (sets * line size) + * way size = cache size / (cache size / (sets * line size)) + * way size = sets * line size + * associativity = ways = cache size / way size + */ + way_size = sets * line_size; + *associativity = cache_size / way_size; + + if (way_size > max_way_size) { + pr_err("L2C OF: set size %dKB is too large\n", way_size); + return; + } + + pr_info("L2C OF: override cache size: %d bytes (%dKB)\n", + cache_size, cache_size >> 10); + pr_info("L2C OF: override line size: %d bytes\n", line_size); + pr_info("L2C OF: override way size: %d bytes (%dKB)\n", + way_size, way_size >> 10); + pr_info("L2C OF: override associativity: %d\n", *associativity); + + /* + * Calculates the bits 17:19 to set for way size: + * 512KB -> 6, 256KB -> 5, ... 16KB -> 1 + */ + way_size_bits = ilog2(way_size >> 10) - 3; + if (way_size_bits < 1 || way_size_bits > 6) { + pr_err("L2C OF: cache way size illegal: %dKB is not mapped\n", + way_size); + return; + } + + mask |= L2C_AUX_CTRL_WAY_SIZE_MASK; + val |= (way_size_bits << L2C_AUX_CTRL_WAY_SIZE_SHIFT); + + *aux_val &= ~mask; + *aux_val |= val; + *aux_mask &= ~mask; +} + static void __init l2x0_of_parse(const struct device_node *np, u32 *aux_val, u32 *aux_mask) { @@ -952,6 +1045,7 @@ static void __init l2x0_of_parse(const struct device_node *np, u32 tag = 0; u32 dirty = 0; u32 val = 0, mask = 0; + u32 assoc; of_property_read_u32(np, "arm,tag-latency", &tag); if (tag) { @@ -974,6 +1068,15 @@ static void __init l2x0_of_parse(const struct device_node *np, val |= (dirty - 1) << L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT; } + l2x0_cache_size_of_parse(np, aux_val, aux_mask, &assoc, SZ_256K); + if (assoc > 8) { + pr_err("l2x0 of: cache setting yield too high associativity\n"); + pr_err("l2x0 of: %d calculated, max 8\n", assoc); + } else { + mask |= L2X0_AUX_CTRL_ASSOC_MASK; + val |= (assoc << L2X0_AUX_CTRL_ASSOC_SHIFT); + } + *aux_val &= ~mask; *aux_val |= val; *aux_mask &= ~mask; @@ -1021,6 +1124,7 @@ static void __init l2c310_of_parse(const struct device_node *np, u32 data[3] = { 0, 0, 0 }; u32 tag[3] = { 0, 0, 0 }; u32 filter[2] = { 0, 0 }; + u32 assoc; of_property_read_u32_array(np, "arm,tag-latency", tag, ARRAY_SIZE(tag)); if (tag[0] && tag[1] && tag[2]) @@ -1047,6 +1151,23 @@ static void __init l2c310_of_parse(const struct device_node *np, writel_relaxed((filter[0] & ~(SZ_1M - 1)) | L310_ADDR_FILTER_EN, l2x0_base + L310_ADDR_FILTER_START); } + + l2x0_cache_size_of_parse(np, aux_val, aux_mask, &assoc, SZ_512K); + switch (assoc) { + case 16: + *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK; + *aux_val |= L310_AUX_CTRL_ASSOCIATIVITY_16; + *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK; + break; + case 8: + *aux_val &= ~L2X0_AUX_CTRL_ASSOC_MASK; + *aux_mask &= ~L2X0_AUX_CTRL_ASSOC_MASK; + break; + default: + pr_err("PL310 OF: cache setting yield illegal associativity\n"); + pr_err("PL310 OF: %d calculated, only 8 and 16 legal\n", assoc); + break; + } } static const struct l2c_init_data of_l2c310_data __initconst = { diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c index c447ec7..e7a81ceb 100644 --- a/arch/arm/mm/idmap.c +++ b/arch/arm/mm/idmap.c @@ -27,7 +27,7 @@ static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end, if (pud_none_or_clear_bad(pud) || (pud_val(*pud) & L_PGD_SWAPPER)) { pmd = pmd_alloc_one(&init_mm, addr); if (!pmd) { - pr_warning("Failed to allocate identity pmd.\n"); + pr_warn("Failed to allocate identity pmd.\n"); return; } /* diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 659c75d..9221645 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -636,6 +636,11 @@ static int keep_initrd; void free_initrd_mem(unsigned long start, unsigned long end) { if (!keep_initrd) { + if (start == initrd_start) + start = round_down(start, PAGE_SIZE); + if (end == initrd_end) + end = round_up(end, PAGE_SIZE); + poison_init_mem((void *)start, PAGE_ALIGN(end) - start); free_reserved_area((void *)start, (void *)end, -1, "initrd"); } diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 8348ed6..9f98cec 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -223,13 +223,13 @@ early_param("ecc", early_ecc); static int __init early_cachepolicy(char *p) { - pr_warning("cachepolicy kernel parameter not supported without cp15\n"); + pr_warn("cachepolicy kernel parameter not supported without cp15\n"); } early_param("cachepolicy", early_cachepolicy); static int __init noalign_setup(char *__unused) { - pr_warning("noalign kernel parameter not supported without cp15\n"); + pr_warn("noalign kernel parameter not supported without cp15\n"); } __setup("noalign", noalign_setup); diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S index 1a24e92..d3daed0 100644 --- a/arch/arm/mm/proc-v7-3level.S +++ b/arch/arm/mm/proc-v7-3level.S @@ -146,7 +146,6 @@ ENDPROC(cpu_v7_set_pte_ext) mov \tmp, \ttbr1, lsr #(32 - ARCH_PGD_SHIFT) @ upper bits mov \ttbr1, \ttbr1, lsl #ARCH_PGD_SHIFT @ lower bits addls \ttbr1, \ttbr1, #TTBR1_OFFSET - adcls \tmp, \tmp, #0 mcrr p15, 1, \ttbr1, \tmp, c2 @ load TTBR1 mov \tmp, \ttbr0, lsr #(32 - ARCH_PGD_SHIFT) @ upper bits mov \ttbr0, \ttbr0, lsl #ARCH_PGD_SHIFT @ lower bits @@ -158,9 +157,9 @@ ENDPROC(cpu_v7_set_pte_ext) * TFR EV X F IHD LR S * .EEE ..EE PUI. .TAT 4RVI ZWRS BLDP WCAM * rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced - * 11 0 110 1 0011 1100 .111 1101 < we want + * 11 0 110 0 0011 1100 .111 1101 < we want */ .align 2 .type v7_crval, #object v7_crval: - crval clear=0x0120c302, mmuset=0x30c23c7d, ucset=0x00c01c7c + crval clear=0x0122c302, mmuset=0x30c03c7d, ucset=0x00c01c7c diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index b5d67db..b3a9478 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -570,7 +570,7 @@ __v7_ca15mp_proc_info: __v7_b15mp_proc_info: .long 0x420f00f0 .long 0xff0ffff0 - __v7_proc __v7_b15mp_setup, hwcaps = HWCAP_IDIV + __v7_proc __v7_b15mp_setup .size __v7_b15mp_proc_info, . - __v7_b15mp_proc_info /* diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 02fc10d..d055db3 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -1,3 +1,6 @@ +config ARCH_OMAP + bool + if ARCH_OMAP menu "TI OMAP Common Features" diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index c2baa8e..24770e5 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -64,7 +64,9 @@ enum { DMA_CHAIN_STARTED, DMA_CHAIN_NOTSTARTED }; static struct omap_system_dma_plat_info *p; static struct omap_dma_dev_attr *d; - +static void omap_clear_dma(int lch); +static int omap_dma_set_prio_lch(int lch, unsigned char read_prio, + unsigned char write_prio); static int enable_1510_mode; static u32 errata; @@ -284,66 +286,6 @@ void omap_set_dma_transfer_params(int lch, int data_type, int elem_count, } EXPORT_SYMBOL(omap_set_dma_transfer_params); -void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) -{ - BUG_ON(omap_dma_in_1510_mode()); - - if (dma_omap1()) { - u16 w; - - w = p->dma_read(CCR2, lch); - w &= ~0x03; - - switch (mode) { - case OMAP_DMA_CONSTANT_FILL: - w |= 0x01; - break; - case OMAP_DMA_TRANSPARENT_COPY: - w |= 0x02; - break; - case OMAP_DMA_COLOR_DIS: - break; - default: - BUG(); - } - p->dma_write(w, CCR2, lch); - - w = p->dma_read(LCH_CTRL, lch); - w &= ~0x0f; - /* Default is channel type 2D */ - if (mode) { - p->dma_write(color, COLOR, lch); - w |= 1; /* Channel type G */ - } - p->dma_write(w, LCH_CTRL, lch); - } - - if (dma_omap2plus()) { - u32 val; - - val = p->dma_read(CCR, lch); - val &= ~((1 << 17) | (1 << 16)); - - switch (mode) { - case OMAP_DMA_CONSTANT_FILL: - val |= 1 << 16; - break; - case OMAP_DMA_TRANSPARENT_COPY: - val |= 1 << 17; - break; - case OMAP_DMA_COLOR_DIS: - break; - default: - BUG(); - } - p->dma_write(val, CCR, lch); - - color &= 0xffffff; - p->dma_write(color, COLOR, lch); - } -} -EXPORT_SYMBOL(omap_set_dma_color_mode); - void omap_set_dma_write_mode(int lch, enum omap_dma_write_mode mode) { if (dma_omap2plus()) { @@ -417,16 +359,6 @@ void omap_set_dma_params(int lch, struct omap_dma_channel_params *params) } EXPORT_SYMBOL(omap_set_dma_params); -void omap_set_dma_src_index(int lch, int eidx, int fidx) -{ - if (dma_omap2plus()) - return; - - p->dma_write(eidx, CSEI, lch); - p->dma_write(fidx, CSFI, lch); -} -EXPORT_SYMBOL(omap_set_dma_src_index); - void omap_set_dma_src_data_pack(int lch, int enable) { u32 l; @@ -510,16 +442,6 @@ void omap_set_dma_dest_params(int lch, int dest_port, int dest_amode, } EXPORT_SYMBOL(omap_set_dma_dest_params); -void omap_set_dma_dest_index(int lch, int eidx, int fidx) -{ - if (dma_omap2plus()) - return; - - p->dma_write(eidx, CDEI, lch); - p->dma_write(fidx, CDFI, lch); -} -EXPORT_SYMBOL(omap_set_dma_dest_index); - void omap_set_dma_dest_data_pack(int lch, int enable) { u32 l; @@ -843,7 +765,7 @@ EXPORT_SYMBOL(omap_dma_set_global_params); * Both of the above can be set with one of the following values : * DMA_CH_PRIO_HIGH/DMA_CH_PRIO_LOW */ -int +static int omap_dma_set_prio_lch(int lch, unsigned char read_prio, unsigned char write_prio) { @@ -864,13 +786,13 @@ omap_dma_set_prio_lch(int lch, unsigned char read_prio, return 0; } -EXPORT_SYMBOL(omap_dma_set_prio_lch); + /* * Clears any DMA state so the DMA engine is ready to restart with new buffers * through omap_start_dma(). Any buffers in flight are discarded. */ -void omap_clear_dma(int lch) +static void omap_clear_dma(int lch) { unsigned long flags; @@ -878,7 +800,6 @@ void omap_clear_dma(int lch) p->clear_dma(lch); local_irq_restore(flags); } -EXPORT_SYMBOL(omap_clear_dma); void omap_start_dma(int lch) { @@ -1167,652 +1088,6 @@ void omap_dma_link_lch(int lch_head, int lch_queue) } EXPORT_SYMBOL(omap_dma_link_lch); -/* - * Once the DMA queue is stopped, we can destroy it. - */ -void omap_dma_unlink_lch(int lch_head, int lch_queue) -{ - if (omap_dma_in_1510_mode()) { - if (lch_head == lch_queue) { - p->dma_write(p->dma_read(CCR, lch_head) & ~(3 << 8), - CCR, lch_head); - return; - } - printk(KERN_ERR "DMA linking is not supported in 1510 mode\n"); - BUG(); - return; - } - - if (dma_chan[lch_head].next_lch != lch_queue || - dma_chan[lch_head].next_lch == -1) { - pr_err("omap_dma: trying to unlink non linked channels\n"); - dump_stack(); - } - - if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) || - (dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) { - pr_err("omap_dma: You need to stop the DMA channels before unlinking\n"); - dump_stack(); - } - - dma_chan[lch_head].next_lch = -1; -} -EXPORT_SYMBOL(omap_dma_unlink_lch); - -#ifndef CONFIG_ARCH_OMAP1 -/* Create chain of DMA channesls */ -static void create_dma_lch_chain(int lch_head, int lch_queue) -{ - u32 l; - - /* Check if this is the first link in chain */ - if (dma_chan[lch_head].next_linked_ch == -1) { - dma_chan[lch_head].next_linked_ch = lch_queue; - dma_chan[lch_head].prev_linked_ch = lch_queue; - dma_chan[lch_queue].next_linked_ch = lch_head; - dma_chan[lch_queue].prev_linked_ch = lch_head; - } - - /* a link exists, link the new channel in circular chain */ - else { - dma_chan[lch_queue].next_linked_ch = - dma_chan[lch_head].next_linked_ch; - dma_chan[lch_queue].prev_linked_ch = lch_head; - dma_chan[lch_head].next_linked_ch = lch_queue; - dma_chan[dma_chan[lch_queue].next_linked_ch].prev_linked_ch = - lch_queue; - } - - l = p->dma_read(CLNK_CTRL, lch_head); - l &= ~(0x1f); - l |= lch_queue; - p->dma_write(l, CLNK_CTRL, lch_head); - - l = p->dma_read(CLNK_CTRL, lch_queue); - l &= ~(0x1f); - l |= (dma_chan[lch_queue].next_linked_ch); - p->dma_write(l, CLNK_CTRL, lch_queue); -} - -/** - * @brief omap_request_dma_chain : Request a chain of DMA channels - * - * @param dev_id - Device id using the dma channel - * @param dev_name - Device name - * @param callback - Call back function - * @chain_id - - * @no_of_chans - Number of channels requested - * @chain_mode - Dynamic or static chaining : OMAP_DMA_STATIC_CHAIN - * OMAP_DMA_DYNAMIC_CHAIN - * @params - Channel parameters - * - * @return - Success : 0 - * Failure: -EINVAL/-ENOMEM - */ -int omap_request_dma_chain(int dev_id, const char *dev_name, - void (*callback) (int lch, u16 ch_status, - void *data), - int *chain_id, int no_of_chans, int chain_mode, - struct omap_dma_channel_params params) -{ - int *channels; - int i, err; - - /* Is the chain mode valid ? */ - if (chain_mode != OMAP_DMA_STATIC_CHAIN - && chain_mode != OMAP_DMA_DYNAMIC_CHAIN) { - printk(KERN_ERR "Invalid chain mode requested\n"); - return -EINVAL; - } - - if (unlikely((no_of_chans < 1 - || no_of_chans > dma_lch_count))) { - printk(KERN_ERR "Invalid Number of channels requested\n"); - return -EINVAL; - } - - /* - * Allocate a queue to maintain the status of the channels - * in the chain - */ - channels = kmalloc(sizeof(*channels) * no_of_chans, GFP_KERNEL); - if (channels == NULL) { - printk(KERN_ERR "omap_dma: No memory for channel queue\n"); - return -ENOMEM; - } - - /* request and reserve DMA channels for the chain */ - for (i = 0; i < no_of_chans; i++) { - err = omap_request_dma(dev_id, dev_name, - callback, NULL, &channels[i]); - if (err < 0) { - int j; - for (j = 0; j < i; j++) - omap_free_dma(channels[j]); - kfree(channels); - printk(KERN_ERR "omap_dma: Request failed %d\n", err); - return err; - } - dma_chan[channels[i]].prev_linked_ch = -1; - dma_chan[channels[i]].state = DMA_CH_NOTSTARTED; - - /* - * Allowing client drivers to set common parameters now, - * so that later only relevant (src_start, dest_start - * and element count) can be set - */ - omap_set_dma_params(channels[i], ¶ms); - } - - *chain_id = channels[0]; - dma_linked_lch[*chain_id].linked_dmach_q = channels; - dma_linked_lch[*chain_id].chain_mode = chain_mode; - dma_linked_lch[*chain_id].chain_state = DMA_CHAIN_NOTSTARTED; - dma_linked_lch[*chain_id].no_of_lchs_linked = no_of_chans; - - for (i = 0; i < no_of_chans; i++) - dma_chan[channels[i]].chain_id = *chain_id; - - /* Reset the Queue pointers */ - OMAP_DMA_CHAIN_QINIT(*chain_id); - - /* Set up the chain */ - if (no_of_chans == 1) - create_dma_lch_chain(channels[0], channels[0]); - else { - for (i = 0; i < (no_of_chans - 1); i++) - create_dma_lch_chain(channels[i], channels[i + 1]); - } - - return 0; -} -EXPORT_SYMBOL(omap_request_dma_chain); - -/** - * @brief omap_modify_dma_chain_param : Modify the chain's params - Modify the - * params after setting it. Dont do this while dma is running!! - * - * @param chain_id - Chained logical channel id. - * @param params - * - * @return - Success : 0 - * Failure : -EINVAL - */ -int omap_modify_dma_chain_params(int chain_id, - struct omap_dma_channel_params params) -{ - int *channels; - u32 i; - - /* Check for input params */ - if (unlikely((chain_id < 0 - || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - channels = dma_linked_lch[chain_id].linked_dmach_q; - - for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) { - /* - * Allowing client drivers to set common parameters now, - * so that later only relevant (src_start, dest_start - * and element count) can be set - */ - omap_set_dma_params(channels[i], ¶ms); - } - - return 0; -} -EXPORT_SYMBOL(omap_modify_dma_chain_params); - -/** - * @brief omap_free_dma_chain - Free all the logical channels in a chain. - * - * @param chain_id - * - * @return - Success : 0 - * Failure : -EINVAL - */ -int omap_free_dma_chain(int chain_id) -{ - int *channels; - u32 i; - - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - - channels = dma_linked_lch[chain_id].linked_dmach_q; - for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) { - dma_chan[channels[i]].next_linked_ch = -1; - dma_chan[channels[i]].prev_linked_ch = -1; - dma_chan[channels[i]].chain_id = -1; - dma_chan[channels[i]].state = DMA_CH_NOTSTARTED; - omap_free_dma(channels[i]); - } - - kfree(channels); - - dma_linked_lch[chain_id].linked_dmach_q = NULL; - dma_linked_lch[chain_id].chain_mode = -1; - dma_linked_lch[chain_id].chain_state = -1; - - return (0); -} -EXPORT_SYMBOL(omap_free_dma_chain); - -/** - * @brief omap_dma_chain_status - Check if the chain is in - * active / inactive state. - * @param chain_id - * - * @return - Success : OMAP_DMA_CHAIN_ACTIVE/OMAP_DMA_CHAIN_INACTIVE - * Failure : -EINVAL - */ -int omap_dma_chain_status(int chain_id) -{ - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - pr_debug("CHAINID=%d, qcnt=%d\n", chain_id, - dma_linked_lch[chain_id].q_count); - - if (OMAP_DMA_CHAIN_QEMPTY(chain_id)) - return OMAP_DMA_CHAIN_INACTIVE; - - return OMAP_DMA_CHAIN_ACTIVE; -} -EXPORT_SYMBOL(omap_dma_chain_status); - -/** - * @brief omap_dma_chain_a_transfer - Get a free channel from a chain, - * set the params and start the transfer. - * - * @param chain_id - * @param src_start - buffer start address - * @param dest_start - Dest address - * @param elem_count - * @param frame_count - * @param callbk_data - channel callback parameter data. - * - * @return - Success : 0 - * Failure: -EINVAL/-EBUSY - */ -int omap_dma_chain_a_transfer(int chain_id, int src_start, int dest_start, - int elem_count, int frame_count, void *callbk_data) -{ - int *channels; - u32 l, lch; - int start_dma = 0; - - /* - * if buffer size is less than 1 then there is - * no use of starting the chain - */ - if (elem_count < 1) { - printk(KERN_ERR "Invalid buffer size\n"); - return -EINVAL; - } - - /* Check for input params */ - if (unlikely((chain_id < 0 - || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exist\n"); - return -EINVAL; - } - - /* Check if all the channels in chain are in use */ - if (OMAP_DMA_CHAIN_QFULL(chain_id)) - return -EBUSY; - - /* Frame count may be negative in case of indexed transfers */ - channels = dma_linked_lch[chain_id].linked_dmach_q; - - /* Get a free channel */ - lch = channels[dma_linked_lch[chain_id].q_tail]; - - /* Store the callback data */ - dma_chan[lch].data = callbk_data; - - /* Increment the q_tail */ - OMAP_DMA_CHAIN_INCQTAIL(chain_id); - - /* Set the params to the free channel */ - if (src_start != 0) - p->dma_write(src_start, CSSA, lch); - if (dest_start != 0) - p->dma_write(dest_start, CDSA, lch); - - /* Write the buffer size */ - p->dma_write(elem_count, CEN, lch); - p->dma_write(frame_count, CFN, lch); - - /* - * If the chain is dynamically linked, - * then we may have to start the chain if its not active - */ - if (dma_linked_lch[chain_id].chain_mode == OMAP_DMA_DYNAMIC_CHAIN) { - - /* - * In Dynamic chain, if the chain is not started, - * queue the channel - */ - if (dma_linked_lch[chain_id].chain_state == - DMA_CHAIN_NOTSTARTED) { - /* Enable the link in previous channel */ - if (dma_chan[dma_chan[lch].prev_linked_ch].state == - DMA_CH_QUEUED) - enable_lnk(dma_chan[lch].prev_linked_ch); - dma_chan[lch].state = DMA_CH_QUEUED; - } - - /* - * Chain is already started, make sure its active, - * if not then start the chain - */ - else { - start_dma = 1; - - if (dma_chan[dma_chan[lch].prev_linked_ch].state == - DMA_CH_STARTED) { - enable_lnk(dma_chan[lch].prev_linked_ch); - dma_chan[lch].state = DMA_CH_QUEUED; - start_dma = 0; - if (0 == ((1 << 7) & p->dma_read( - CCR, dma_chan[lch].prev_linked_ch))) { - disable_lnk(dma_chan[lch]. - prev_linked_ch); - pr_debug("\n prev ch is stopped\n"); - start_dma = 1; - } - } - - else if (dma_chan[dma_chan[lch].prev_linked_ch].state - == DMA_CH_QUEUED) { - enable_lnk(dma_chan[lch].prev_linked_ch); - dma_chan[lch].state = DMA_CH_QUEUED; - start_dma = 0; - } - omap_enable_channel_irq(lch); - - l = p->dma_read(CCR, lch); - - if ((0 == (l & (1 << 24)))) - l &= ~(1 << 25); - else - l |= (1 << 25); - if (start_dma == 1) { - if (0 == (l & (1 << 7))) { - l |= (1 << 7); - dma_chan[lch].state = DMA_CH_STARTED; - pr_debug("starting %d\n", lch); - p->dma_write(l, CCR, lch); - } else - start_dma = 0; - } else { - if (0 == (l & (1 << 7))) - p->dma_write(l, CCR, lch); - } - dma_chan[lch].flags |= OMAP_DMA_ACTIVE; - } - } - - return 0; -} -EXPORT_SYMBOL(omap_dma_chain_a_transfer); - -/** - * @brief omap_start_dma_chain_transfers - Start the chain - * - * @param chain_id - * - * @return - Success : 0 - * Failure : -EINVAL/-EBUSY - */ -int omap_start_dma_chain_transfers(int chain_id) -{ - int *channels; - u32 l, i; - - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - channels = dma_linked_lch[chain_id].linked_dmach_q; - - if (dma_linked_lch[channels[0]].chain_state == DMA_CHAIN_STARTED) { - printk(KERN_ERR "Chain is already started\n"); - return -EBUSY; - } - - if (dma_linked_lch[chain_id].chain_mode == OMAP_DMA_STATIC_CHAIN) { - for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; - i++) { - enable_lnk(channels[i]); - omap_enable_channel_irq(channels[i]); - } - } else { - omap_enable_channel_irq(channels[0]); - } - - l = p->dma_read(CCR, channels[0]); - l |= (1 << 7); - dma_linked_lch[chain_id].chain_state = DMA_CHAIN_STARTED; - dma_chan[channels[0]].state = DMA_CH_STARTED; - - if ((0 == (l & (1 << 24)))) - l &= ~(1 << 25); - else - l |= (1 << 25); - p->dma_write(l, CCR, channels[0]); - - dma_chan[channels[0]].flags |= OMAP_DMA_ACTIVE; - - return 0; -} -EXPORT_SYMBOL(omap_start_dma_chain_transfers); - -/** - * @brief omap_stop_dma_chain_transfers - Stop the dma transfer of a chain. - * - * @param chain_id - * - * @return - Success : 0 - * Failure : EINVAL - */ -int omap_stop_dma_chain_transfers(int chain_id) -{ - int *channels; - u32 l, i; - u32 sys_cf = 0; - - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - channels = dma_linked_lch[chain_id].linked_dmach_q; - - if (IS_DMA_ERRATA(DMA_ERRATA_i88)) { - sys_cf = p->dma_read(OCP_SYSCONFIG, 0); - l = sys_cf; - /* Middle mode reg set no Standby */ - l &= ~((1 << 12)|(1 << 13)); - p->dma_write(l, OCP_SYSCONFIG, 0); - } - - for (i = 0; i < dma_linked_lch[chain_id].no_of_lchs_linked; i++) { - - /* Stop the Channel transmission */ - l = p->dma_read(CCR, channels[i]); - l &= ~(1 << 7); - p->dma_write(l, CCR, channels[i]); - - /* Disable the link in all the channels */ - disable_lnk(channels[i]); - dma_chan[channels[i]].state = DMA_CH_NOTSTARTED; - - } - dma_linked_lch[chain_id].chain_state = DMA_CHAIN_NOTSTARTED; - - /* Reset the Queue pointers */ - OMAP_DMA_CHAIN_QINIT(chain_id); - - if (IS_DMA_ERRATA(DMA_ERRATA_i88)) - p->dma_write(sys_cf, OCP_SYSCONFIG, 0); - - return 0; -} -EXPORT_SYMBOL(omap_stop_dma_chain_transfers); - -/* Get the index of the ongoing DMA in chain */ -/** - * @brief omap_get_dma_chain_index - Get the element and frame index - * of the ongoing DMA in chain - * - * @param chain_id - * @param ei - Element index - * @param fi - Frame index - * - * @return - Success : 0 - * Failure : -EINVAL - */ -int omap_get_dma_chain_index(int chain_id, int *ei, int *fi) -{ - int lch; - int *channels; - - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - if ((!ei) || (!fi)) - return -EINVAL; - - channels = dma_linked_lch[chain_id].linked_dmach_q; - - /* Get the current channel */ - lch = channels[dma_linked_lch[chain_id].q_head]; - - *ei = p->dma_read(CCEN, lch); - *fi = p->dma_read(CCFN, lch); - - return 0; -} -EXPORT_SYMBOL(omap_get_dma_chain_index); - -/** - * @brief omap_get_dma_chain_dst_pos - Get the destination position of the - * ongoing DMA in chain - * - * @param chain_id - * - * @return - Success : Destination position - * Failure : -EINVAL - */ -int omap_get_dma_chain_dst_pos(int chain_id) -{ - int lch; - int *channels; - - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - - channels = dma_linked_lch[chain_id].linked_dmach_q; - - /* Get the current channel */ - lch = channels[dma_linked_lch[chain_id].q_head]; - - return p->dma_read(CDAC, lch); -} -EXPORT_SYMBOL(omap_get_dma_chain_dst_pos); - -/** - * @brief omap_get_dma_chain_src_pos - Get the source position - * of the ongoing DMA in chain - * @param chain_id - * - * @return - Success : Destination position - * Failure : -EINVAL - */ -int omap_get_dma_chain_src_pos(int chain_id) -{ - int lch; - int *channels; - - /* Check for input params */ - if (unlikely((chain_id < 0 || chain_id >= dma_lch_count))) { - printk(KERN_ERR "Invalid chain id\n"); - return -EINVAL; - } - - /* Check if the chain exists */ - if (dma_linked_lch[chain_id].linked_dmach_q == NULL) { - printk(KERN_ERR "Chain doesn't exists\n"); - return -EINVAL; - } - - channels = dma_linked_lch[chain_id].linked_dmach_q; - - /* Get the current channel */ - lch = channels[dma_linked_lch[chain_id].q_head]; - - return p->dma_read(CSAC, lch); -} -EXPORT_SYMBOL(omap_get_dma_chain_src_pos); -#endif /* ifndef CONFIG_ARCH_OMAP1 */ - /*----------------------------------------------------------------------------*/ #ifdef CONFIG_ARCH_OMAP1 diff --git a/arch/arm/xen/Makefile b/arch/arm/xen/Makefile index 1296952..1f85bfe 100644 --- a/arch/arm/xen/Makefile +++ b/arch/arm/xen/Makefile @@ -1 +1 @@ -obj-y := enlighten.o hypercall.o grant-table.o p2m.o mm.o +obj-y := enlighten.o hypercall.o grant-table.o p2m.o mm.o mm32.o diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 98544c5..0e15f01 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -260,6 +260,12 @@ static int __init xen_guest_init(void) xen_domain_type = XEN_HVM_DOMAIN; xen_setup_features(); + + if (!xen_feature(XENFEAT_grant_map_identity)) { + pr_warn("Please upgrade your Xen.\n" + "If your platform has any non-coherent DMA devices, they won't work properly.\n"); + } + if (xen_feature(XENFEAT_dom0)) xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED; else diff --git a/arch/arm/xen/mm32.c b/arch/arm/xen/mm32.c new file mode 100644 index 0000000..3b99860 --- /dev/null +++ b/arch/arm/xen/mm32.c @@ -0,0 +1,202 @@ +#include <linux/cpu.h> +#include <linux/dma-mapping.h> +#include <linux/gfp.h> +#include <linux/highmem.h> + +#include <xen/features.h> + +static DEFINE_PER_CPU(unsigned long, xen_mm32_scratch_virt); +static DEFINE_PER_CPU(pte_t *, xen_mm32_scratch_ptep); + +static int alloc_xen_mm32_scratch_page(int cpu) +{ + struct page *page; + unsigned long virt; + pmd_t *pmdp; + pte_t *ptep; + + if (per_cpu(xen_mm32_scratch_ptep, cpu) != NULL) + return 0; + + page = alloc_page(GFP_KERNEL); + if (page == NULL) { + pr_warn("Failed to allocate xen_mm32_scratch_page for cpu %d\n", cpu); + return -ENOMEM; + } + + virt = (unsigned long)__va(page_to_phys(page)); + pmdp = pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt); + ptep = pte_offset_kernel(pmdp, virt); + + per_cpu(xen_mm32_scratch_virt, cpu) = virt; + per_cpu(xen_mm32_scratch_ptep, cpu) = ptep; + + return 0; +} + +static int xen_mm32_cpu_notify(struct notifier_block *self, + unsigned long action, void *hcpu) +{ + int cpu = (long)hcpu; + switch (action) { + case CPU_UP_PREPARE: + if (alloc_xen_mm32_scratch_page(cpu)) + return NOTIFY_BAD; + break; + default: + break; + } + return NOTIFY_OK; +} + +static struct notifier_block xen_mm32_cpu_notifier = { + .notifier_call = xen_mm32_cpu_notify, +}; + +static void* xen_mm32_remap_page(dma_addr_t handle) +{ + unsigned long virt = get_cpu_var(xen_mm32_scratch_virt); + pte_t *ptep = __get_cpu_var(xen_mm32_scratch_ptep); + + *ptep = pfn_pte(handle >> PAGE_SHIFT, PAGE_KERNEL); + local_flush_tlb_kernel_page(virt); + + return (void*)virt; +} + +static void xen_mm32_unmap(void *vaddr) +{ + put_cpu_var(xen_mm32_scratch_virt); +} + + +/* functions called by SWIOTLB */ + +static void dma_cache_maint(dma_addr_t handle, unsigned long offset, + size_t size, enum dma_data_direction dir, + void (*op)(const void *, size_t, int)) +{ + unsigned long pfn; + size_t left = size; + + pfn = (handle >> PAGE_SHIFT) + offset / PAGE_SIZE; + offset %= PAGE_SIZE; + + do { + size_t len = left; + void *vaddr; + + if (!pfn_valid(pfn)) + { + /* Cannot map the page, we don't know its physical address. + * Return and hope for the best */ + if (!xen_feature(XENFEAT_grant_map_identity)) + return; + vaddr = xen_mm32_remap_page(handle) + offset; + op(vaddr, len, dir); + xen_mm32_unmap(vaddr - offset); + } else { + struct page *page = pfn_to_page(pfn); + + if (PageHighMem(page)) { + if (len + offset > PAGE_SIZE) + len = PAGE_SIZE - offset; + + if (cache_is_vipt_nonaliasing()) { + vaddr = kmap_atomic(page); + op(vaddr + offset, len, dir); + kunmap_atomic(vaddr); + } else { + vaddr = kmap_high_get(page); + if (vaddr) { + op(vaddr + offset, len, dir); + kunmap_high(page); + } + } + } else { + vaddr = page_address(page) + offset; + op(vaddr, len, dir); + } + } + + offset = 0; + pfn++; + left -= len; + } while (left); +} + +static void __xen_dma_page_dev_to_cpu(struct device *hwdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ + /* Cannot use __dma_page_dev_to_cpu because we don't have a + * struct page for handle */ + + if (dir != DMA_TO_DEVICE) + outer_inv_range(handle, handle + size); + + dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_unmap_area); +} + +static void __xen_dma_page_cpu_to_dev(struct device *hwdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ + + dma_cache_maint(handle & PAGE_MASK, handle & ~PAGE_MASK, size, dir, dmac_map_area); + + if (dir == DMA_FROM_DEVICE) { + outer_inv_range(handle, handle + size); + } else { + outer_clean_range(handle, handle + size); + } +} + +void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) + +{ + if (!__generic_dma_ops(hwdev)->unmap_page) + return; + if (dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + return; + + __xen_dma_page_dev_to_cpu(hwdev, handle, size, dir); +} + +void xen_dma_sync_single_for_cpu(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir) +{ + if (!__generic_dma_ops(hwdev)->sync_single_for_cpu) + return; + __xen_dma_page_dev_to_cpu(hwdev, handle, size, dir); +} + +void xen_dma_sync_single_for_device(struct device *hwdev, + dma_addr_t handle, size_t size, enum dma_data_direction dir) +{ + if (!__generic_dma_ops(hwdev)->sync_single_for_device) + return; + __xen_dma_page_cpu_to_dev(hwdev, handle, size, dir); +} + +int __init xen_mm32_init(void) +{ + int cpu; + + if (!xen_initial_domain()) + return 0; + + register_cpu_notifier(&xen_mm32_cpu_notifier); + get_online_cpus(); + for_each_online_cpu(cpu) { + if (alloc_xen_mm32_scratch_page(cpu)) { + put_online_cpus(); + unregister_cpu_notifier(&xen_mm32_cpu_notifier); + return -ENOMEM; + } + } + put_online_cpus(); + + return 0; +} +arch_initcall(xen_mm32_init); diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c index 97baf44..0548577 100644 --- a/arch/arm/xen/p2m.c +++ b/arch/arm/xen/p2m.c @@ -21,14 +21,12 @@ struct xen_p2m_entry { unsigned long pfn; unsigned long mfn; unsigned long nr_pages; - struct rb_node rbnode_mach; struct rb_node rbnode_phys; }; static rwlock_t p2m_lock; struct rb_root phys_to_mach = RB_ROOT; EXPORT_SYMBOL_GPL(phys_to_mach); -static struct rb_root mach_to_phys = RB_ROOT; static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new) { @@ -41,8 +39,6 @@ static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new) parent = *link; entry = rb_entry(parent, struct xen_p2m_entry, rbnode_phys); - if (new->mfn == entry->mfn) - goto err_out; if (new->pfn == entry->pfn) goto err_out; @@ -88,64 +84,6 @@ unsigned long __pfn_to_mfn(unsigned long pfn) } EXPORT_SYMBOL_GPL(__pfn_to_mfn); -static int xen_add_mach_to_phys_entry(struct xen_p2m_entry *new) -{ - struct rb_node **link = &mach_to_phys.rb_node; - struct rb_node *parent = NULL; - struct xen_p2m_entry *entry; - int rc = 0; - - while (*link) { - parent = *link; - entry = rb_entry(parent, struct xen_p2m_entry, rbnode_mach); - - if (new->mfn == entry->mfn) - goto err_out; - if (new->pfn == entry->pfn) - goto err_out; - - if (new->mfn < entry->mfn) - link = &(*link)->rb_left; - else - link = &(*link)->rb_right; - } - rb_link_node(&new->rbnode_mach, parent, link); - rb_insert_color(&new->rbnode_mach, &mach_to_phys); - goto out; - -err_out: - rc = -EINVAL; - pr_warn("%s: cannot add pfn=%pa -> mfn=%pa: pfn=%pa -> mfn=%pa already exists\n", - __func__, &new->pfn, &new->mfn, &entry->pfn, &entry->mfn); -out: - return rc; -} - -unsigned long __mfn_to_pfn(unsigned long mfn) -{ - struct rb_node *n = mach_to_phys.rb_node; - struct xen_p2m_entry *entry; - unsigned long irqflags; - - read_lock_irqsave(&p2m_lock, irqflags); - while (n) { - entry = rb_entry(n, struct xen_p2m_entry, rbnode_mach); - if (entry->mfn <= mfn && - entry->mfn + entry->nr_pages > mfn) { - read_unlock_irqrestore(&p2m_lock, irqflags); - return entry->pfn + (mfn - entry->mfn); - } - if (mfn < entry->mfn) - n = n->rb_left; - else - n = n->rb_right; - } - read_unlock_irqrestore(&p2m_lock, irqflags); - - return INVALID_P2M_ENTRY; -} -EXPORT_SYMBOL_GPL(__mfn_to_pfn); - int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops, struct gnttab_map_grant_ref *kmap_ops, struct page **pages, unsigned int count) @@ -192,7 +130,6 @@ bool __set_phys_to_machine_multi(unsigned long pfn, p2m_entry = rb_entry(n, struct xen_p2m_entry, rbnode_phys); if (p2m_entry->pfn <= pfn && p2m_entry->pfn + p2m_entry->nr_pages > pfn) { - rb_erase(&p2m_entry->rbnode_mach, &mach_to_phys); rb_erase(&p2m_entry->rbnode_phys, &phys_to_mach); write_unlock_irqrestore(&p2m_lock, irqflags); kfree(p2m_entry); @@ -217,8 +154,7 @@ bool __set_phys_to_machine_multi(unsigned long pfn, p2m_entry->mfn = mfn; write_lock_irqsave(&p2m_lock, irqflags); - if ((rc = xen_add_phys_to_mach_entry(p2m_entry) < 0) || - (rc = xen_add_mach_to_phys_entry(p2m_entry) < 0)) { + if ((rc = xen_add_phys_to_mach_entry(p2m_entry)) < 0) { write_unlock_irqrestore(&p2m_lock, irqflags); return false; } |