diff options
Diffstat (limited to 'arch')
57 files changed, 1093 insertions, 154 deletions
diff --git a/arch/arm/boot/dts/kirkwood-dns320.dts b/arch/arm/boot/dts/kirkwood-dns320.dts new file mode 100644 index 000000000000..dc09a735b04a --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-dns320.dts @@ -0,0 +1,64 @@ +/dts-v1/; + +/include/ "kirkwood.dtsi" + +/ { + model = "D-Link DNS-320 NAS (Rev A1)"; + compatible = "dlink,dns-320-a1", "dlink,dns-320", "dlink,dns-kirkwood", "mrvl,kirkwood-88f6281", "mrvl,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x8000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk"; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <166666667>; + status = "okay"; + }; + + serial@12100 { + clock-frequency = <166666667>; + status = "okay"; + }; + + nand@3000000 { + status = "okay"; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + read-only; + }; + + partition@100000 { + label = "uImage"; + reg = <0x0100000 0x500000>; + }; + + partition@600000 { + label = "ramdisk"; + reg = <0x0600000 0x500000>; + }; + + partition@b00000 { + label = "image"; + reg = <0x0b00000 0x6600000>; + }; + + partition@7100000 { + label = "mini firmware"; + reg = <0x7100000 0xa00000>; + }; + + partition@7b00000 { + label = "config"; + reg = <0x7b00000 0x500000>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-dns325.dts b/arch/arm/boot/dts/kirkwood-dns325.dts new file mode 100644 index 000000000000..c2a5562525d2 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-dns325.dts @@ -0,0 +1,59 @@ +/dts-v1/; + +/include/ "kirkwood.dtsi" + +/ { + model = "D-Link DNS-325 NAS (Rev A1)"; + compatible = "dlink,dns-325-a1", "dlink,dns-325", "dlink,dns-kirkwood", "mrvl,kirkwood-88f6281", "mrvl,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk"; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <200000000>; + status = "okay"; + }; + + nand@3000000 { + status = "okay"; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + read-only; + }; + + partition@100000 { + label = "uImage"; + reg = <0x0100000 0x500000>; + }; + + partition@600000 { + label = "ramdisk"; + reg = <0x0600000 0x500000>; + }; + + partition@b00000 { + label = "image"; + reg = <0x0b00000 0x6600000>; + }; + + partition@7100000 { + label = "mini firmware"; + reg = <0x7100000 0xa00000>; + }; + + partition@7b00000 { + label = "config"; + reg = <0x7b00000 0x500000>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts new file mode 100644 index 000000000000..ada0f0c23085 --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts @@ -0,0 +1,44 @@ +/dts-v1/; + +/include/ "kirkwood.dtsi" + +/ { + model = "RaidSonic ICY BOX IB-NAS62x0 (Rev B)"; + compatible = "raidsonic,ib-nas6210-b", "raidsonic,ib-nas6220-b", "raidsonic,ib-nas6210", "raidsonic,ib-nas6220", "raidsonic,ib-nas62x0", "mrvl,kirkwood-88f6281", "mrvl,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk"; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <200000000>; + status = "okay"; + }; + + nand@3000000 { + status = "okay"; + + partition@0 { + label = "u-boot"; + reg = <0x0000000 0x100000>; + }; + + partition@100000 { + label = "uImage"; + reg = <0x0100000 0x600000>; + }; + + partition@700000 { + label = "root"; + reg = <0x0700000 0xf900000>; + }; + + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood-iconnect.dts b/arch/arm/boot/dts/kirkwood-iconnect.dts new file mode 100644 index 000000000000..1ba75d4adecc --- /dev/null +++ b/arch/arm/boot/dts/kirkwood-iconnect.dts @@ -0,0 +1,26 @@ +/dts-v1/; + +/include/ "kirkwood.dtsi" + +/ { + model = "Iomega Iconnect"; + compatible = "iom,iconnect-1.1", "iom,iconnect", "mrvl,kirkwood-88f6281", "mrvl,kirkwood"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + chosen { + bootargs = "console=ttyS0,115200n8 earlyprintk mtdparts=orion_nand:0xc0000@0x0(uboot),0x20000@0xa0000(env),0x300000@0x100000(zImage),0x300000@0x540000(initrd),0x1f400000@0x980000(boot)"; + linux,initrd-start = <0x4500040>; + linux,initrd-end = <0x4800000>; + }; + + ocp@f1000000 { + serial@12000 { + clock-frequency = <200000000>; + status = "ok"; + }; + }; +}; diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index 3474ef890945..926528b81baa 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -5,7 +5,7 @@ ocp@f1000000 { compatible = "simple-bus"; - ranges = <0 0xf1000000 0x1000000>; + ranges = <0 0xf1000000 0x4000000>; #address-cells = <1>; #size-cells = <1>; @@ -32,5 +32,18 @@ reg = <0x10300 0x20>; interrupts = <53>; }; + + nand@3000000 { + #address-cells = <1>; + #size-cells = <1>; + cle = <0>; + ale = <1>; + bank-width = <1>; + compatible = "mrvl,orion-nand"; + reg = <0x3000000 0x400>; + chip-delay = <25>; + /* set partition map and/or chip-delay in board dts */ + status = "disabled"; + }; }; }; diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 80abafb9bf33..9650c143afc1 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -906,27 +906,14 @@ long arch_ptrace(struct task_struct *child, long request, return ret; } -#ifdef __ARMEB__ -#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB -#else -#define AUDIT_ARCH_NR AUDIT_ARCH_ARM -#endif - asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) { unsigned long ip; - /* - * Save IP. IP is used to denote syscall entry/exit: - * IP = 0 -> entry, = 1 -> exit - */ - ip = regs->ARM_ip; - regs->ARM_ip = why; - - if (!ip) + if (why) audit_syscall_exit(regs); else - audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0, + audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1, regs->ARM_r2, regs->ARM_r3); if (!test_thread_flag(TIF_SYSCALL_TRACE)) @@ -936,6 +923,13 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) current_thread_info()->syscall = scno; + /* + * IP is used to denote syscall entry/exit: + * IP = 0 -> entry, =1 -> exit + */ + ip = regs->ARM_ip; + regs->ARM_ip = why; + /* the 0x80 provides a way for the tracing parent to distinguish between a syscall stop and SIGTRAP delivery */ ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index f6a4d32b0421..8f4644659777 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -251,8 +251,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void) struct mm_struct *mm = &init_mm; unsigned int cpu = smp_processor_id(); - printk("CPU%u: Booted secondary processor\n", cpu); - /* * All kernel threads share the same mm context; grab a * reference and switch to it. @@ -264,6 +262,8 @@ asmlinkage void __cpuinit secondary_start_kernel(void) enter_lazy_tlb(mm, current); local_flush_tlb_all(); + printk("CPU%u: Booted secondary processor\n", cpu); + cpu_init(); preempt_disable(); trace_hardirqs_off(); diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c index d2b177905cdb..76cbb055dd05 100644 --- a/arch/arm/kernel/sys_arm.c +++ b/arch/arm/kernel/sys_arm.c @@ -115,7 +115,7 @@ int kernel_execve(const char *filename, "Ir" (THREAD_START_SP - sizeof(regs)), "r" (®s), "Ir" (sizeof(regs)) - : "r0", "r1", "r2", "r3", "ip", "lr", "memory"); + : "r0", "r1", "r2", "r3", "r8", "r9", "ip", "lr", "memory"); out: return ret; diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 366daff79458..2808e471cdcc 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -233,6 +233,9 @@ config MACH_ARMLEX4210 config MACH_UNIVERSAL_C210 bool "Mobile UNIVERSAL_C210 Board" select CPU_EXYNOS4210 + select S5P_HRT + select CLKSRC_MMIO + select HAVE_SCHED_CLOCK select S5P_GPIO_INT select S5P_DEV_FIMC0 select S5P_DEV_FIMC1 diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c index 5cd7a8b8868c..7ac6ff4c46bd 100644 --- a/arch/arm/mach-exynos/clock-exynos5.c +++ b/arch/arm/mach-exynos/clock-exynos5.c @@ -678,7 +678,7 @@ static struct clk exynos5_clk_pdma1 = { .name = "dma", .devname = "dma-pl330.1", .enable = exynos5_clk_ip_fsys_ctrl, - .ctrlbit = (1 << 1), + .ctrlbit = (1 << 2), }; static struct clk exynos5_clk_mdma1 = { diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c index a6959bbfef89..08e5a8e45bdb 100644 --- a/arch/arm/mach-exynos/mach-universal_c210.c +++ b/arch/arm/mach-exynos/mach-universal_c210.c @@ -41,6 +41,7 @@ #include <plat/pd.h> #include <plat/regs-fb-v4.h> #include <plat/fimc-core.h> +#include <plat/s5p-time.h> #include <plat/camport.h> #include <plat/mipi_csis.h> @@ -1091,6 +1092,7 @@ static void __init universal_map_io(void) exynos_init_io(NULL, 0); s3c24xx_init_clocks(24000000); s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs)); + s5p_set_timer_source(S5P_PWM2, S5P_PWM4); } static void s5p_tv_setup(void) @@ -1146,7 +1148,7 @@ MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210") .map_io = universal_map_io, .handle_irq = gic_handle_irq, .init_machine = universal_machine_init, - .timer = &exynos4_timer, + .timer = &s5p_timer, .reserve = &universal_reserve, .restart = exynos4_restart, MACHINE_END diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig index 90ceab761929..199764fe0fb0 100644 --- a/arch/arm/mach-kirkwood/Kconfig +++ b/arch/arm/mach-kirkwood/Kconfig @@ -58,6 +58,28 @@ config MACH_DREAMPLUG_DT Say 'Y' here if you want your kernel to support the Marvell DreamPlug (Flattened Device Tree). +config MACH_ICONNECT_DT + bool "Iomega Iconnect (Flattened Device Tree)" + select ARCH_KIRKWOOD_DT + help + Say 'Y' here to enable Iomega Iconnect support. + +config MACH_DLINK_KIRKWOOD_DT + bool "D-Link Kirkwood-based NAS (Flattened Device Tree)" + select ARCH_KIRKWOOD_DT + help + Say 'Y' here if you want your kernel to support the + Kirkwood-based D-Link NASes such as DNS-320 & DNS-325, + using Flattened Device Tree. + +config MACH_IB62X0_DT + bool "RaidSonic IB-NAS6210, IB-NAS6220 (Flattened Device Tree)" + select ARCH_KIRKWOOD_DT + help + Say 'Y' here if you want your kernel to support the + RaidSonic IB-NAS6210 & IB-NAS6220 devices, using + Flattened Device Tree. + config MACH_TS219 bool "QNAP TS-110, TS-119, TS-119P+, TS-210, TS-219, TS-219P and TS-219P+ Turbo NAS" help diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile index e299a9576bf0..d2b05907b10e 100644 --- a/arch/arm/mach-kirkwood/Makefile +++ b/arch/arm/mach-kirkwood/Makefile @@ -22,3 +22,6 @@ obj-$(CONFIG_MACH_T5325) += t5325-setup.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_ARCH_KIRKWOOD_DT) += board-dt.o obj-$(CONFIG_MACH_DREAMPLUG_DT) += board-dreamplug.o +obj-$(CONFIG_MACH_ICONNECT_DT) += board-iconnect.o +obj-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += board-dnskw.o +obj-$(CONFIG_MACH_IB62X0_DT) += board-ib62x0.o diff --git a/arch/arm/mach-kirkwood/Makefile.boot b/arch/arm/mach-kirkwood/Makefile.boot index 16f938522304..02edbdf5b065 100644 --- a/arch/arm/mach-kirkwood/Makefile.boot +++ b/arch/arm/mach-kirkwood/Makefile.boot @@ -3,3 +3,7 @@ params_phys-y := 0x00000100 initrd_phys-y := 0x00800000 dtb-$(CONFIG_MACH_DREAMPLUG_DT) += kirkwood-dreamplug.dtb +dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns320.dtb +dtb-$(CONFIG_MACH_DLINK_KIRKWOOD_DT) += kirkwood-dns325.dtb +dtb-$(CONFIG_MACH_ICONNECT_DT) += kirkwood-iconnect.dtb +dtb-$(CONFIG_MACH_IB62X0_DT) += kirkwood-ib62x0.dtb diff --git a/arch/arm/mach-kirkwood/board-dnskw.c b/arch/arm/mach-kirkwood/board-dnskw.c new file mode 100644 index 000000000000..58c2d68f9443 --- /dev/null +++ b/arch/arm/mach-kirkwood/board-dnskw.c @@ -0,0 +1,275 @@ +/* + * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk> + * + * arch/arm/mach-kirkwood/board-dnskw.c + * + * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to + * flattened device tree yet. + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/ata_platform.h> +#include <linux/mv643xx_eth.h> +#include <linux/of.h> +#include <linux/gpio.h> +#include <linux/input.h> +#include <linux/gpio_keys.h> +#include <linux/gpio-fan.h> +#include <linux/leds.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <mach/kirkwood.h> +#include <mach/bridge-regs.h> +#include "common.h" +#include "mpp.h" + +static struct mv643xx_eth_platform_data dnskw_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +static struct mv_sata_platform_data dnskw_sata_data = { + .n_ports = 2, +}; + +static unsigned int dnskw_mpp_config[] __initdata = { + MPP13_UART1_TXD, /* Custom ... */ + MPP14_UART1_RXD, /* ... Controller (DNS-320 only) */ + MPP20_SATA1_ACTn, /* LED: White Right HDD */ + MPP21_SATA0_ACTn, /* LED: White Left HDD */ + MPP24_GPIO, + MPP25_GPIO, + MPP26_GPIO, /* LED: Power */ + MPP27_GPIO, /* LED: Red Right HDD */ + MPP28_GPIO, /* LED: Red Left HDD */ + MPP29_GPIO, /* LED: Red USB (DNS-325 only) */ + MPP30_GPIO, + MPP31_GPIO, + MPP32_GPIO, + MPP33_GPO, + MPP34_GPIO, /* Button: Front power */ + MPP35_GPIO, /* LED: Red USB (DNS-320 only) */ + MPP36_GPIO, /* Power: Turn off board */ + MPP37_GPIO, /* Power: Turn back on after power failure */ + MPP38_GPIO, + MPP39_GPIO, /* Power: SATA0 */ + MPP40_GPIO, /* Power: SATA1 */ + MPP41_GPIO, /* SATA0 present */ + MPP42_GPIO, /* SATA1 present */ + MPP43_GPIO, /* LED: White USB */ + MPP44_GPIO, /* Fan: Tachometer Pin */ + MPP45_GPIO, /* Fan: high speed */ + MPP46_GPIO, /* Fan: low speed */ + MPP47_GPIO, /* Button: Back unmount */ + MPP48_GPIO, /* Button: Back reset */ + MPP49_GPIO, /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */ + 0 +}; + +static struct gpio_led dns325_led_pins[] = { + { + .name = "dns325:white:power", + .gpio = 26, + .active_low = 1, + .default_trigger = "default-on", + }, + { + .name = "dns325:white:usb", + .gpio = 43, + .active_low = 1, + }, + { + .name = "dns325:red:l_hdd", + .gpio = 28, + .active_low = 1, + }, + { + .name = "dns325:red:r_hdd", + .gpio = 27, + .active_low = 1, + }, + { + .name = "dns325:red:usb", + .gpio = 29, + .active_low = 1, + }, +}; + +static struct gpio_led_platform_data dns325_led_data = { + .num_leds = ARRAY_SIZE(dns325_led_pins), + .leds = dns325_led_pins, +}; + +static struct platform_device dns325_led_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &dns325_led_data, + }, +}; + +static struct gpio_led dns320_led_pins[] = { + { + .name = "dns320:blue:power", + .gpio = 26, + .active_low = 1, + .default_trigger = "default-on", + }, + { + .name = "dns320:blue:usb", + .gpio = 43, + .active_low = 1, + }, + { + .name = "dns320:orange:l_hdd", + .gpio = 28, + .active_low = 1, + }, + { + .name = "dns320:orange:r_hdd", + .gpio = 27, + .active_low = 1, + }, + { + .name = "dns320:orange:usb", + .gpio = 35, + .active_low = 1, + }, +}; + +static struct gpio_led_platform_data dns320_led_data = { + .num_leds = ARRAY_SIZE(dns320_led_pins), + .leds = dns320_led_pins, +}; + +static struct platform_device dns320_led_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &dns320_led_data, + }, +}; + +static struct i2c_board_info dns325_i2c_board_info[] __initdata = { + { + I2C_BOARD_INFO("lm75", 0x48), + }, + /* Something at 0x0c also */ +}; + +static struct gpio_keys_button dnskw_button_pins[] = { + { + .code = KEY_POWER, + .gpio = 34, + .desc = "Power button", + .active_low = 1, + }, + { + .code = KEY_EJECTCD, + .gpio = 47, + .desc = "USB unmount button", + .active_low = 1, + }, + { + .code = KEY_RESTART, + .gpio = 48, + .desc = "Reset button", + .active_low = 1, + }, +}; + +static struct gpio_keys_platform_data dnskw_button_data = { + .buttons = dnskw_button_pins, + .nbuttons = ARRAY_SIZE(dnskw_button_pins), +}; + +static struct platform_device dnskw_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &dnskw_button_data, + } +}; + +/* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */ +static struct gpio_fan_speed dnskw_fan_speed[] = { + { 0, 0 }, + { 3000, 1 }, + { 6000, 2 }, +}; +static unsigned dnskw_fan_pins[] = {46, 45}; + +static struct gpio_fan_platform_data dnskw_fan_data = { + .num_ctrl = ARRAY_SIZE(dnskw_fan_pins), + .ctrl = dnskw_fan_pins, + .num_speed = ARRAY_SIZE(dnskw_fan_speed), + .speed = dnskw_fan_speed, +}; + +static struct platform_device dnskw_fan_device = { + .name = "gpio-fan", + .id = -1, + .dev = { + .platform_data = &dnskw_fan_data, + }, +}; + +static void dnskw_power_off(void) +{ + gpio_set_value(36, 1); +} + +/* Register any GPIO for output and set the value */ +static void __init dnskw_gpio_register(unsigned gpio, char *name, int def) +{ + if (gpio_request(gpio, name) == 0 && + gpio_direction_output(gpio, 0) == 0) { + gpio_set_value(gpio, def); + if (gpio_export(gpio, 0) != 0) + pr_err("dnskw: Failed to export GPIO %s\n", name); + } else + pr_err("dnskw: Failed to register %s\n", name); +} + +void __init dnskw_init(void) +{ + kirkwood_mpp_conf(dnskw_mpp_config); + + kirkwood_ehci_init(); + kirkwood_ge00_init(&dnskw_ge00_data); + kirkwood_sata_init(&dnskw_sata_data); + kirkwood_i2c_init(); + + platform_device_register(&dnskw_button_device); + platform_device_register(&dnskw_fan_device); + + if (of_machine_is_compatible("dlink,dns-325")) { + i2c_register_board_info(0, dns325_i2c_board_info, + ARRAY_SIZE(dns325_i2c_board_info)); + platform_device_register(&dns325_led_device); + + } else if (of_machine_is_compatible("dlink,dns-320")) + platform_device_register(&dns320_led_device); + + /* Register power-off GPIO. */ + if (gpio_request(36, "dnskw:power:off") == 0 + && gpio_direction_output(36, 0) == 0) + pm_power_off = dnskw_power_off; + else + pr_err("dnskw: failed to configure power-off GPIO\n"); + + /* Ensure power is supplied to both HDDs */ + dnskw_gpio_register(39, "dnskw:power:sata0", 1); + dnskw_gpio_register(40, "dnskw:power:sata1", 1); + + /* Set NAS to turn back on after a power failure */ + dnskw_gpio_register(37, "dnskw:power:recover", 1); +} diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c index 1c672d9e6656..10d1969b9e3a 100644 --- a/arch/arm/mach-kirkwood/board-dt.c +++ b/arch/arm/mach-kirkwood/board-dt.c @@ -14,6 +14,7 @@ #include <linux/init.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/kexec.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/bridge-regs.h> @@ -55,11 +56,24 @@ static void __init kirkwood_dt_init(void) if (of_machine_is_compatible("globalscale,dreamplug")) dreamplug_init(); + if (of_machine_is_compatible("dlink,dns-kirkwood")) + dnskw_init(); + + if (of_machine_is_compatible("iom,iconnect")) + iconnect_init(); + + if (of_machine_is_compatible("raidsonic,ib-nas62x0")) + ib62x0_init(); + of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL); } static const char *kirkwood_dt_board_compat[] = { "globalscale,dreamplug", + "dlink,dns-320", + "dlink,dns-325", + "iom,iconnect", + "raidsonic,ib-nas62x0", NULL }; diff --git a/arch/arm/mach-kirkwood/board-ib62x0.c b/arch/arm/mach-kirkwood/board-ib62x0.c new file mode 100644 index 000000000000..eddf1df8891f --- /dev/null +++ b/arch/arm/mach-kirkwood/board-ib62x0.c @@ -0,0 +1,143 @@ +/* + * Copyright 2012 (C), Simon Baatz <gmbnomis@gmail.com> + * + * arch/arm/mach-kirkwood/board-ib62x0.c + * + * RaidSonic ICY BOX IB-NAS6210 & IB-NAS6220 init for drivers not + * converted to flattened device tree yet. + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/partitions.h> +#include <linux/ata_platform.h> +#include <linux/mv643xx_eth.h> +#include <linux/gpio.h> +#include <linux/gpio_keys.h> +#include <linux/input.h> +#include <linux/leds.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <mach/kirkwood.h> +#include "common.h" +#include "mpp.h" + +#define IB62X0_GPIO_POWER_OFF 24 + +static struct mv643xx_eth_platform_data ib62x0_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(8), +}; + +static struct mv_sata_platform_data ib62x0_sata_data = { + .n_ports = 2, +}; + +static unsigned int ib62x0_mpp_config[] __initdata = { + MPP0_NF_IO2, + MPP1_NF_IO3, + MPP2_NF_IO4, + MPP3_NF_IO5, + MPP4_NF_IO6, + MPP5_NF_IO7, + MPP18_NF_IO0, + MPP19_NF_IO1, + MPP22_GPIO, /* OS LED red */ + MPP24_GPIO, /* Power off device */ + MPP25_GPIO, /* OS LED green */ + MPP27_GPIO, /* USB transfer LED */ + MPP28_GPIO, /* Reset button */ + MPP29_GPIO, /* USB Copy button */ + 0 +}; + +static struct gpio_led ib62x0_led_pins[] = { + { + .name = "ib62x0:green:os", + .default_trigger = "default-on", + .gpio = 25, + .active_low = 0, + }, + { + .name = "ib62x0:red:os", + .default_trigger = "none", + .gpio = 22, + .active_low = 0, + }, + { + .name = "ib62x0:red:usb_copy", + .default_trigger = "none", + .gpio = 27, + .active_low = 0, + }, +}; + +static struct gpio_led_platform_data ib62x0_led_data = { + .leds = ib62x0_led_pins, + .num_leds = ARRAY_SIZE(ib62x0_led_pins), +}; + +static struct platform_device ib62x0_led_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &ib62x0_led_data, + } +}; + +static struct gpio_keys_button ib62x0_button_pins[] = { + { + .code = KEY_COPY, + .gpio = 29, + .desc = "USB Copy", + .active_low = 1, + }, + { + .code = KEY_RESTART, + .gpio = 28, + .desc = "Reset", + .active_low = 1, + }, +}; + +static struct gpio_keys_platform_data ib62x0_button_data = { + .buttons = ib62x0_button_pins, + .nbuttons = ARRAY_SIZE(ib62x0_button_pins), +}; + +static struct platform_device ib62x0_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &ib62x0_button_data, + } +}; + +static void ib62x0_power_off(void) +{ + gpio_set_value(IB62X0_GPIO_POWER_OFF, 1); +} + +void __init ib62x0_init(void) +{ + /* + * Basic setup. Needs to be called early. + */ + kirkwood_mpp_conf(ib62x0_mpp_config); + + kirkwood_ehci_init(); + kirkwood_ge00_init(&ib62x0_ge00_data); + kirkwood_sata_init(&ib62x0_sata_data); + platform_device_register(&ib62x0_led_device); + platform_device_register(&ib62x0_button_device); + if (gpio_request(IB62X0_GPIO_POWER_OFF, "ib62x0:power:off") == 0 && + gpio_direction_output(IB62X0_GPIO_POWER_OFF, 0) == 0) + pm_power_off = ib62x0_power_off; + else + pr_err("board-ib62x0: failed to configure power-off GPIO\n"); +} diff --git a/arch/arm/mach-kirkwood/board-iconnect.c b/arch/arm/mach-kirkwood/board-iconnect.c new file mode 100644 index 000000000000..2222c5739519 --- /dev/null +++ b/arch/arm/mach-kirkwood/board-iconnect.c @@ -0,0 +1,165 @@ +/* + * arch/arm/mach-kirkwood/board-iconnect.c + * + * Iomega i-connect Board Setup + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_fdt.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/mtd/partitions.h> +#include <linux/mv643xx_eth.h> +#include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/spi/flash.h> +#include <linux/spi/spi.h> +#include <linux/spi/orion_spi.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/gpio_keys.h> +#include <asm/mach/arch.h> +#include <mach/kirkwood.h> +#include "common.h" +#include "mpp.h" + +static struct mv643xx_eth_platform_data iconnect_ge00_data = { + .phy_addr = MV643XX_ETH_PHY_ADDR(11), +}; + +static struct gpio_led iconnect_led_pins[] = { + { + .name = "led_level", + .gpio = 41, + .default_trigger = "default-on", + }, { + .name = "power:blue", + .gpio = 42, + .default_trigger = "timer", + }, { + .name = "power:red", + .gpio = 43, + }, { + .name = "usb1:blue", + .gpio = 44, + }, { + .name = "usb2:blue", + .gpio = 45, + }, { + .name = "usb3:blue", + .gpio = 46, + }, { + .name = "usb4:blue", + .gpio = 47, + }, { + .name = "otb:blue", + .gpio = 48, + }, +}; + +static struct gpio_led_platform_data iconnect_led_data = { + .leds = iconnect_led_pins, + .num_leds = ARRAY_SIZE(iconnect_led_pins), + .gpio_blink_set = orion_gpio_led_blink_set, +}; + +static struct platform_device iconnect_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &iconnect_led_data, + } +}; + +static unsigned int iconnect_mpp_config[] __initdata = { + MPP12_GPIO, + MPP35_GPIO, + MPP41_GPIO, + MPP42_GPIO, + MPP43_GPIO, + MPP44_GPIO, + MPP45_GPIO, + MPP46_GPIO, + MPP47_GPIO, + MPP48_GPIO, + 0 +}; + +static struct i2c_board_info __initdata iconnect_board_info[] = { + { + I2C_BOARD_INFO("lm63", 0x4c), + }, +}; + +static struct mtd_partition iconnect_nand_parts[] = { + { + .name = "flash", + .offset = 0, + .size = MTDPART_SIZ_FULL, + }, +}; + +/* yikes... theses are the original input buttons */ +/* but I'm not convinced by the sw event choices */ +static struct gpio_keys_button iconnect_buttons[] = { + { + .type = EV_SW, + .code = SW_LID, + .gpio = 12, + .desc = "Reset Button", + .active_low = 1, + .debounce_interval = 100, + }, { + .type = EV_SW, + .code = SW_TABLET_MODE, + .gpio = 35, + .desc = "OTB Button", + .active_low = 1, + .debounce_interval = 100, + }, +}; + +static struct gpio_keys_platform_data iconnect_button_data = { + .buttons = iconnect_buttons, + .nbuttons = ARRAY_SIZE(iconnect_buttons), +}; + +static struct platform_device iconnect_button_device = { + .name = "gpio-keys", + .id = -1, + .num_resources = 0, + .dev = { + .platform_data = &iconnect_button_data, + }, +}; + +void __init iconnect_init(void) +{ + kirkwood_mpp_conf(iconnect_mpp_config); + kirkwood_nand_init(ARRAY_AND_SIZE(iconnect_nand_parts), 25); + kirkwood_i2c_init(); + i2c_register_board_info(0, iconnect_board_info, + ARRAY_SIZE(iconnect_board_info)); + + kirkwood_ehci_init(); + kirkwood_ge00_init(&iconnect_ge00_data); + + platform_device_register(&iconnect_button_device); + platform_device_register(&iconnect_leds); +} + +static int __init iconnect_pci_init(void) +{ + if (of_machine_is_compatible("iom,iconnect")) + kirkwood_pcie_init(KW_PCIE0); + return 0; +} +subsys_initcall(iconnect_pci_init); diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index a02cae881f2f..3ad037385a5e 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -15,6 +15,7 @@ #include <linux/ata_platform.h> #include <linux/mtd/nand.h> #include <linux/dma-mapping.h> +#include <linux/of.h> #include <net/dsa.h> #include <asm/page.h> #include <asm/timex.h> @@ -482,6 +483,9 @@ static int __init kirkwood_clock_gate(void) unsigned int curr = readl(CLOCK_GATING_CTRL); u32 dev, rev; +#ifdef CONFIG_OF + struct device_node *np; +#endif kirkwood_pcie_id(&dev, &rev); printk(KERN_DEBUG "Gating clock of unused units\n"); printk(KERN_DEBUG "before: 0x%08x\n", curr); @@ -489,6 +493,14 @@ static int __init kirkwood_clock_gate(void) /* Make sure those units are accessible */ writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0 | CGC_PEX1, CLOCK_GATING_CTRL); +#ifdef CONFIG_OF + np = of_find_compatible_node(NULL, NULL, "mrvl,orion-nand"); + if (np && of_device_is_available(np)) { + kirkwood_clk_ctrl |= CGC_RUNIT; + of_node_put(np); + } +#endif + /* For SATA: first shutdown the phy */ if (!(kirkwood_clk_ctrl & CGC_SATA0)) { /* Disable PLL and IVREF */ diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h index fa8e7689c436..a34c41a5172e 100644 --- a/arch/arm/mach-kirkwood/common.h +++ b/arch/arm/mach-kirkwood/common.h @@ -58,6 +58,24 @@ void dreamplug_init(void); static inline void dreamplug_init(void) {}; #endif +#ifdef CONFIG_MACH_DLINK_KIRKWOOD_DT +void dnskw_init(void); +#else +static inline void dnskw_init(void) {}; +#endif + +#ifdef CONFIG_MACH_ICONNECT_DT +void iconnect_init(void); +#else +static inline void iconnect_init(void) {}; +#endif + +#ifdef CONFIG_MACH_IB62X0_DT +void ib62x0_init(void); +#else +static inline void ib62x0_init(void) {}; +#endif + /* early init functions not converted to fdt yet */ char *kirkwood_id(void); void kirkwood_l2_init(void); diff --git a/arch/arm/mach-omap1/ams-delta-fiq.c b/arch/arm/mach-omap1/ams-delta-fiq.c index fcce7ff37630..cfd98b186fcc 100644 --- a/arch/arm/mach-omap1/ams-delta-fiq.c +++ b/arch/arm/mach-omap1/ams-delta-fiq.c @@ -48,7 +48,7 @@ static irqreturn_t deferred_fiq(int irq, void *dev_id) struct irq_chip *irq_chip = NULL; int gpio, irq_num, fiq_count; - irq_desc = irq_to_desc(IH_GPIO_BASE); + irq_desc = irq_to_desc(gpio_to_irq(AMS_DELTA_GPIO_PIN_KEYBRD_CLK)); if (irq_desc) irq_chip = irq_desc->irq_data.chip; diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index 16ec5c89e035..55dfcccf1a8a 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -629,7 +629,7 @@ static struct regulator_consumer_supply dummy_supplies[] = { static void __init igep_init(void) { - regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); + regulator_register_fixed(1, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); /* Get IGEP2 hardware revision */ diff --git a/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h b/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h index 1e2d3322f33e..c88420de1151 100644 --- a/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h +++ b/arch/arm/mach-omap2/include/mach/ctrl_module_pad_core_44xx.h @@ -941,10 +941,10 @@ #define OMAP4_DSI2_LANEENABLE_MASK (0x7 << 29) #define OMAP4_DSI1_LANEENABLE_SHIFT 24 #define OMAP4_DSI1_LANEENABLE_MASK (0x1f << 24) -#define OMAP4_DSI2_PIPD_SHIFT 19 -#define OMAP4_DSI2_PIPD_MASK (0x1f << 19) -#define OMAP4_DSI1_PIPD_SHIFT 14 -#define OMAP4_DSI1_PIPD_MASK (0x1f << 14) +#define OMAP4_DSI1_PIPD_SHIFT 19 +#define OMAP4_DSI1_PIPD_MASK (0x1f << 19) +#define OMAP4_DSI2_PIPD_SHIFT 14 +#define OMAP4_DSI2_PIPD_MASK (0x1f << 14) /* CONTROL_MCBSPLP */ #define OMAP4_ALBCTRLRX_FSX_SHIFT 31 diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index c3ed15b8ea25..13d2bece1bae 100644 --- a/arch/arm/mach-orion5x/dns323-setup.c +++ b/arch/arm/mach-orion5x/dns323-setup.c @@ -253,27 +253,6 @@ error_fail: * GPIO LEDs (simple - doesn't use hardware blinking support) */ -#define ORION_BLINK_HALF_PERIOD 100 /* ms */ - -static int dns323_gpio_blink_set(unsigned gpio, int state, - unsigned long *delay_on, unsigned long *delay_off) -{ - - if (delay_on && delay_off && !*delay_on && !*delay_off) - *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; - - switch(state) { - case GPIO_LED_NO_BLINK_LOW: - case GPIO_LED_NO_BLINK_HIGH: - orion_gpio_set_blink(gpio, 0); - gpio_set_value(gpio, state); - break; - case GPIO_LED_BLINK: - orion_gpio_set_blink(gpio, 1); - } - return 0; -} - static struct gpio_led dns323ab_leds[] = { { .name = "power:blue", @@ -312,13 +291,13 @@ static struct gpio_led dns323c_leds[] = { static struct gpio_led_platform_data dns323ab_led_data = { .num_leds = ARRAY_SIZE(dns323ab_leds), .leds = dns323ab_leds, - .gpio_blink_set = dns323_gpio_blink_set, + .gpio_blink_set = orion_gpio_led_blink_set, }; static struct gpio_led_platform_data dns323c_led_data = { .num_leds = ARRAY_SIZE(dns323c_leds), .leds = dns323c_leds, - .gpio_blink_set = dns323_gpio_blink_set, + .gpio_blink_set = orion_gpio_led_blink_set, }; static struct platform_device dns323_gpio_leds = { diff --git a/arch/arm/mach-orion5x/mpp.h b/arch/arm/mach-orion5x/mpp.h index eac68978a2c2..db70e79a1198 100644 --- a/arch/arm/mach-orion5x/mpp.h +++ b/arch/arm/mach-orion5x/mpp.h @@ -65,8 +65,8 @@ #define MPP8_GIGE MPP(8, 0x1, 0, 0, 1, 1, 1) #define MPP9_UNUSED MPP(9, 0x0, 0, 0, 1, 1, 1) -#define MPP9_GPIO MPP(9, 0x0, 0, 0, 1, 1, 1) -#define MPP9_GIGE MPP(9, 0x1, 1, 1, 1, 1, 1) +#define MPP9_GPIO MPP(9, 0x0, 1, 1, 1, 1, 1) +#define MPP9_GIGE MPP(9, 0x1, 0, 0, 1, 1, 1) #define MPP10_UNUSED MPP(10, 0x0, 0, 0, 1, 1, 1) #define MPP10_GPIO MPP(10, 0x0, 1, 1, 1, 1, 1) diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c index 10d160888133..af95af257301 100644 --- a/arch/arm/plat-orion/gpio.c +++ b/arch/arm/plat-orion/gpio.c @@ -16,6 +16,7 @@ #include <linux/bitops.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/leds.h> /* * GPIO unit register offsets. @@ -289,12 +290,34 @@ void orion_gpio_set_blink(unsigned pin, int blink) return; spin_lock_irqsave(&ochip->lock, flags); - __set_level(ochip, pin, 0); - __set_blinking(ochip, pin, blink); + __set_level(ochip, pin & 31, 0); + __set_blinking(ochip, pin & 31, blink); spin_unlock_irqrestore(&ochip->lock, flags); } EXPORT_SYMBOL(orion_gpio_set_blink); +#define ORION_BLINK_HALF_PERIOD 100 /* ms */ + +int orion_gpio_led_blink_set(unsigned gpio, int state, + unsigned long *delay_on, unsigned long *delay_off) +{ + + if (delay_on && delay_off && !*delay_on && !*delay_off) + *delay_on = *delay_off = ORION_BLINK_HALF_PERIOD; + + switch (state) { + case GPIO_LED_NO_BLINK_LOW: + case GPIO_LED_NO_BLINK_HIGH: + orion_gpio_set_blink(gpio, 0); + gpio_set_value(gpio, state); + break; + case GPIO_LED_BLINK: + orion_gpio_set_blink(gpio, 1); + } + return 0; +} +EXPORT_SYMBOL_GPL(orion_gpio_led_blink_set); + /***************************************************************************** * Orion GPIO IRQ diff --git a/arch/arm/plat-orion/include/plat/gpio.h b/arch/arm/plat-orion/include/plat/gpio.h index 3abf30428bee..bec0c98ce41f 100644 --- a/arch/arm/plat-orion/include/plat/gpio.h +++ b/arch/arm/plat-orion/include/plat/gpio.h @@ -19,6 +19,8 @@ */ void orion_gpio_set_unused(unsigned pin); void orion_gpio_set_blink(unsigned pin, int blink); +int orion_gpio_led_blink_set(unsigned gpio, int state, + unsigned long *delay_on, unsigned long *delay_off); #define GPIO_INPUT_OK (1 << 0) #define GPIO_OUTPUT_OK (1 << 1) diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index f5104b7c52cd..463fb3bbe11e 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -1174,7 +1174,7 @@ out: bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { - return irqchip_in_kernel(vcpu->kcm) == (vcpu->arch.apic != NULL); + return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL); } int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) diff --git a/arch/m68k/platform/520x/config.c b/arch/m68k/platform/520x/config.c index 235947844f27..09df4b89e8be 100644 --- a/arch/m68k/platform/520x/config.c +++ b/arch/m68k/platform/520x/config.c @@ -22,7 +22,7 @@ /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m520x_qspi_init(void) { @@ -35,7 +35,7 @@ static void __init m520x_qspi_init(void) writew(par, MCF_GPIO_PAR_UART); } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -79,7 +79,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m520x_uarts_init(); m520x_fec_init(); -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m520x_qspi_init(); #endif } diff --git a/arch/m68k/platform/523x/config.c b/arch/m68k/platform/523x/config.c index c8b405d5a961..d47dfd8f50a2 100644 --- a/arch/m68k/platform/523x/config.c +++ b/arch/m68k/platform/523x/config.c @@ -22,7 +22,7 @@ /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m523x_qspi_init(void) { @@ -36,7 +36,7 @@ static void __init m523x_qspi_init(void) writew(par, MCFGPIO_PAR_TIMER); } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -58,7 +58,7 @@ void __init config_BSP(char *commandp, int size) { mach_sched_init = hw_timer_init; m523x_fec_init(); -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m523x_qspi_init(); #endif } diff --git a/arch/m68k/platform/5249/config.c b/arch/m68k/platform/5249/config.c index bbf05135bb98..300e729a58d0 100644 --- a/arch/m68k/platform/5249/config.c +++ b/arch/m68k/platform/5249/config.c @@ -51,7 +51,7 @@ static struct platform_device *m5249_devices[] __initdata = { /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m5249_qspi_init(void) { @@ -61,7 +61,7 @@ static void __init m5249_qspi_init(void) mcf_mapirq2imr(MCF_IRQ_QSPI, MCFINTC_QSPI); } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -90,7 +90,7 @@ void __init config_BSP(char *commandp, int size) #ifdef CONFIG_M5249C3 m5249_smc91x_init(); #endif -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m5249_qspi_init(); #endif } diff --git a/arch/m68k/platform/527x/config.c b/arch/m68k/platform/527x/config.c index f91a53294c35..b3cb378c5e94 100644 --- a/arch/m68k/platform/527x/config.c +++ b/arch/m68k/platform/527x/config.c @@ -23,7 +23,7 @@ /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m527x_qspi_init(void) { @@ -42,7 +42,7 @@ static void __init m527x_qspi_init(void) #endif } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -90,7 +90,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m527x_uarts_init(); m527x_fec_init(); -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m527x_qspi_init(); #endif } diff --git a/arch/m68k/platform/528x/config.c b/arch/m68k/platform/528x/config.c index d4492926614c..c5f11ba49be5 100644 --- a/arch/m68k/platform/528x/config.c +++ b/arch/m68k/platform/528x/config.c @@ -24,7 +24,7 @@ /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m528x_qspi_init(void) { @@ -32,7 +32,7 @@ static void __init m528x_qspi_init(void) __raw_writeb(0x07, MCFGPIO_PQSPAR); } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -98,7 +98,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m528x_uarts_init(); m528x_fec_init(); -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m528x_qspi_init(); #endif } diff --git a/arch/m68k/platform/532x/config.c b/arch/m68k/platform/532x/config.c index 2bec3477b739..37082d02f2bd 100644 --- a/arch/m68k/platform/532x/config.c +++ b/arch/m68k/platform/532x/config.c @@ -30,7 +30,7 @@ /***************************************************************************/ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) static void __init m532x_qspi_init(void) { @@ -38,7 +38,7 @@ static void __init m532x_qspi_init(void) writew(0x01f0, MCF_GPIO_PAR_QSPI); } -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ /***************************************************************************/ @@ -77,7 +77,7 @@ void __init config_BSP(char *commandp, int size) mach_sched_init = hw_timer_init; m532x_uarts_init(); m532x_fec_init(); -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) m532x_qspi_init(); #endif diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c index 7af97362b95c..3aa77ddea89d 100644 --- a/arch/m68k/platform/coldfire/device.c +++ b/arch/m68k/platform/coldfire/device.c @@ -121,7 +121,7 @@ static struct platform_device mcf_fec1 = { #endif /* MCFFEC_BASE1 */ #endif /* CONFIG_FEC */ -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) /* * The ColdFire QSPI module is an SPI protocol hardware block used * on a number of different ColdFire CPUs. @@ -274,7 +274,7 @@ static struct platform_device mcf_qspi = { .resource = mcf_qspi_resources, .dev.platform_data = &mcf_qspi_data, }; -#endif /* CONFIG_SPI_COLDFIRE_QSPI */ +#endif /* IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) */ static struct platform_device *mcf_devices[] __initdata = { &mcf_uart, @@ -284,7 +284,7 @@ static struct platform_device *mcf_devices[] __initdata = { &mcf_fec1, #endif #endif -#ifdef CONFIG_SPI_COLDFIRE_QSPI +#if IS_ENABLED(CONFIG_SPI_COLDFIRE_QSPI) &mcf_qspi, #endif }; diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/asm/hardware.h index 4e9626836bab..d1d864b81bae 100644 --- a/arch/parisc/include/asm/hardware.h +++ b/arch/parisc/include/asm/hardware.h @@ -2,7 +2,6 @@ #define _PARISC_HARDWARE_H #include <linux/mod_devicetable.h> -#include <asm/pdc.h> #define HWTYPE_ANY_ID PA_HWTYPE_ANY_ID #define HVERSION_ANY_ID PA_HVERSION_ANY_ID @@ -95,12 +94,14 @@ struct bc_module { #define HPHW_MC 15 #define HPHW_FAULTY 31 +struct parisc_device_id; /* hardware.c: */ extern const char *parisc_hardware_description(struct parisc_device_id *id); extern enum cpu_type parisc_get_cpu_type(unsigned long hversion); struct pci_dev; +struct hardware_path; /* drivers.c: */ extern struct parisc_device *alloc_pa_dev(unsigned long hpa, diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h index a84cc1f925f6..4e0e7dbf0f3f 100644 --- a/arch/parisc/include/asm/page.h +++ b/arch/parisc/include/asm/page.h @@ -160,5 +160,11 @@ extern int npmem_ranges; #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> +#include <asm/pdc.h> + +#define PAGE0 ((struct zeropage *)__PAGE_OFFSET) + +/* DEFINITION OF THE ZERO-PAGE (PAG0) */ +/* based on work by Jason Eckhardt (jason@equator.com) */ #endif /* _PARISC_PAGE_H */ diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h index 4ca510b3c6f8..7f0f2d23059d 100644 --- a/arch/parisc/include/asm/pdc.h +++ b/arch/parisc/include/asm/pdc.h @@ -343,8 +343,6 @@ #ifdef __KERNEL__ -#include <asm/page.h> /* for __PAGE_OFFSET */ - extern int pdc_type; /* Values for pdc_type */ @@ -677,11 +675,6 @@ static inline char * os_id_to_string(u16 os_id) { #endif /* __KERNEL__ */ -#define PAGE0 ((struct zeropage *)__PAGE_OFFSET) - -/* DEFINITION OF THE ZERO-PAGE (PAG0) */ -/* based on work by Jason Eckhardt (jason@equator.com) */ - /* flags of the device_path */ #define PF_AUTOBOOT 0x80 #define PF_AUTOSEARCH 0x40 diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 22dadeb58695..ee99f2339356 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -44,6 +44,8 @@ struct vm_area_struct; #endif /* !__ASSEMBLY__ */ +#include <asm/page.h> + #define pte_ERROR(e) \ printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) #define pmd_ERROR(e) \ diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h index 804aa28ab1d6..3516e0b27044 100644 --- a/arch/parisc/include/asm/spinlock.h +++ b/arch/parisc/include/asm/spinlock.h @@ -1,6 +1,8 @@ #ifndef __ASM_SPINLOCK_H #define __ASM_SPINLOCK_H +#include <asm/barrier.h> +#include <asm/ldcw.h> #include <asm/processor.h> #include <asm/spinlock_types.h> diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c index 0b3393381a81..47341aa208f2 100644 --- a/arch/parisc/kernel/pdc_cons.c +++ b/arch/parisc/kernel/pdc_cons.c @@ -50,6 +50,7 @@ #include <linux/init.h> #include <linux/major.h> #include <linux/tty.h> +#include <asm/page.h> /* for PAGE0 */ #include <asm/pdc.h> /* for iodc_call() proto and friends */ static DEFINE_SPINLOCK(pdc_console_lock); diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 7c0774397b89..70e105d62423 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -29,6 +29,7 @@ #include <asm/uaccess.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/page.h> #include <asm/param.h> #include <asm/pdc.h> #include <asm/led.h> diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 548da3aa0a30..d58fc4e4149c 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -288,13 +288,6 @@ label##_hv: \ /* Exception addition: Hard disable interrupts */ #define DISABLE_INTS SOFT_DISABLE_INTS(r10,r11) -/* Exception addition: Keep interrupt state */ -#define ENABLE_INTS \ - ld r11,PACAKMSR(r13); \ - ld r12,_MSR(r1); \ - rlwimi r11,r12,0,MSR_EE; \ - mtmsrd r11,1 - #define ADD_NVGPRS \ bl .save_nvgprs diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index f8a7a1a1a9f4..ef2074c3e906 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -588,23 +588,19 @@ _GLOBAL(ret_from_except_lite) fast_exc_return_irq: restore: /* - * This is the main kernel exit path, we first check if we - * have to change our interrupt state. + * This is the main kernel exit path. First we check if we + * are about to re-enable interrupts */ ld r5,SOFTE(r1) lbz r6,PACASOFTIRQEN(r13) - cmpwi cr1,r5,0 - cmpw cr0,r5,r6 - beq cr0,4f + cmpwi cr0,r5,0 + beq restore_irq_off - /* We do, handle disable first, which is easy */ - bne cr1,3f; - li r0,0 - stb r0,PACASOFTIRQEN(r13); - TRACE_DISABLE_INTS - b 4f + /* We are enabling, were we already enabled ? Yes, just return */ + cmpwi cr0,r6,1 + beq cr0,do_restore -3: /* + /* * We are about to soft-enable interrupts (we are hard disabled * at this point). We check if there's anything that needs to * be replayed first. @@ -626,7 +622,7 @@ restore_no_replay: /* * Final return path. BookE is handled in a different file */ -4: +do_restore: #ifdef CONFIG_PPC_BOOK3E b .exception_return_book3e #else @@ -700,6 +696,25 @@ fast_exception_return: #endif /* CONFIG_PPC_BOOK3E */ /* + * We are returning to a context with interrupts soft disabled. + * + * However, we may also about to hard enable, so we need to + * make sure that in this case, we also clear PACA_IRQ_HARD_DIS + * or that bit can get out of sync and bad things will happen + */ +restore_irq_off: + ld r3,_MSR(r1) + lbz r7,PACAIRQHAPPENED(r13) + andi. r0,r3,MSR_EE + beq 1f + rlwinm r7,r7,0,~PACA_IRQ_HARD_DIS + stb r7,PACAIRQHAPPENED(r13) +1: li r0,0 + stb r0,PACASOFTIRQEN(r13); + TRACE_DISABLE_INTS + b do_restore + + /* * Something did happen, check if a re-emit is needed * (this also clears paca->irq_happened) */ @@ -748,6 +763,9 @@ restore_check_irq_replay: #endif /* CONFIG_PPC_BOOK3E */ 1: b .ret_from_except /* What else to do here ? */ + + +3: do_work: #ifdef CONFIG_PREEMPT andi. r0,r3,MSR_PR /* Returning to user mode? */ @@ -767,16 +785,6 @@ do_work: SOFT_DISABLE_INTS(r3,r4) 1: bl .preempt_schedule_irq - /* Hard-disable interrupts again (and update PACA) */ -#ifdef CONFIG_PPC_BOOK3E - wrteei 0 -#else - ld r10,PACAKMSR(r13) /* Get kernel MSR without EE */ - mtmsrd r10,1 -#endif /* CONFIG_PPC_BOOK3E */ - li r0,PACA_IRQ_HARD_DIS - stb r0,PACAIRQHAPPENED(r13) - /* Re-test flags and eventually loop */ clrrdi r9,r1,THREAD_SHIFT ld r4,TI_FLAGS(r9) @@ -787,14 +795,6 @@ do_work: user_work: #endif /* CONFIG_PREEMPT */ - /* Enable interrupts */ -#ifdef CONFIG_PPC_BOOK3E - wrteei 1 -#else - ori r10,r10,MSR_EE - mtmsrd r10,1 -#endif /* CONFIG_PPC_BOOK3E */ - andi. r0,r4,_TIF_NEED_RESCHED beq 1f bl .restore_interrupts diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index cb705fdbb458..8f880bc77c56 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -768,8 +768,8 @@ alignment_common: std r3,_DAR(r1) std r4,_DSISR(r1) bl .save_nvgprs + DISABLE_INTS addi r3,r1,STACK_FRAME_OVERHEAD - ENABLE_INTS bl .alignment_exception b .ret_from_except diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 43eb74fcedde..641da9e868ce 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -229,6 +229,19 @@ notrace void arch_local_irq_restore(unsigned long en) */ if (unlikely(irq_happened != PACA_IRQ_HARD_DIS)) __hard_irq_disable(); +#ifdef CONFIG_TRACE_IRQFLAG + else { + /* + * We should already be hard disabled here. We had bugs + * where that wasn't the case so let's dbl check it and + * warn if we are wrong. Only do that when IRQ tracing + * is enabled as mfmsr() can be costly. + */ + if (WARN_ON(mfmsr() & MSR_EE)) + __hard_irq_disable(); + } +#endif /* CONFIG_TRACE_IRQFLAG */ + set_soft_enabled(0); /* @@ -260,11 +273,17 @@ EXPORT_SYMBOL(arch_local_irq_restore); * if they are currently disabled. This is typically called before * schedule() or do_signal() when returning to userspace. We do it * in C to avoid the burden of dealing with lockdep etc... + * + * NOTE: This is called with interrupts hard disabled but not marked + * as such in paca->irq_happened, so we need to resync this. */ void restore_interrupts(void) { - if (irqs_disabled()) + if (irqs_disabled()) { + local_paca->irq_happened |= PACA_IRQ_HARD_DIS; local_irq_enable(); + } else + __hard_irq_enable(); } #endif /* CONFIG_PPC64 */ diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 6aa0c663e247..158972341a2d 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -248,7 +248,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) addr, regs->nip, regs->link, code); } - if (!arch_irq_disabled_regs(regs)) + if (arch_irqs_disabled() && !arch_irq_disabled_regs(regs)) local_irq_enable(); memset(&info, 0, sizeof(info)); @@ -1019,7 +1019,9 @@ void __kprobes program_check_exception(struct pt_regs *regs) return; } - local_irq_enable(); + /* We restore the interrupt state now */ + if (!arch_irq_disabled_regs(regs)) + local_irq_enable(); #ifdef CONFIG_MATH_EMULATION /* (reason & REASON_ILLEGAL) would be the obvious thing here, @@ -1069,6 +1071,10 @@ void alignment_exception(struct pt_regs *regs) { int sig, code, fixed = 0; + /* We restore the interrupt state now */ + if (!arch_irq_disabled_regs(regs)) + local_irq_enable(); + /* we don't implement logging of alignment exceptions */ if (!(current->thread.align_ctl & PR_UNALIGN_SIGBUS)) fixed = fix_alignment(regs); diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index ddc485a529f2..c3beaeef3f60 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -258,6 +258,8 @@ static long kvmppc_get_guest_page(struct kvm *kvm, unsigned long gfn, !(memslot->userspace_addr & (s - 1))) { start &= ~(s - 1); pgsize = s; + get_page(hpage); + put_page(page); page = hpage; } } @@ -281,11 +283,8 @@ static long kvmppc_get_guest_page(struct kvm *kvm, unsigned long gfn, err = 0; out: - if (got) { - if (PageHuge(page)) - page = compound_head(page); + if (got) put_page(page); - } return err; up_err: @@ -678,8 +677,15 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, SetPageDirty(page); out_put: - if (page) - put_page(page); + if (page) { + /* + * We drop pages[0] here, not page because page might + * have been set to the head page of a compound, but + * we have to drop the reference on the correct tail + * page to match the get inside gup() + */ + put_page(pages[0]); + } return ret; out_unlock: @@ -979,6 +985,7 @@ void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long gpa, pa = *physp; } page = pfn_to_page(pa >> PAGE_SHIFT); + get_page(page); } else { hva = gfn_to_hva_memslot(memslot, gfn); npages = get_user_pages_fast(hva, 1, 1, pages); @@ -991,8 +998,6 @@ void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long gpa, page = compound_head(page); psize <<= compound_order(page); } - if (!kvm->arch.using_mmu_notifiers) - get_page(page); offset = gpa & (psize - 1); if (nb_ret) *nb_ret = psize - offset; @@ -1003,7 +1008,6 @@ void kvmppc_unpin_guest_page(struct kvm *kvm, void *va) { struct page *page = virt_to_page(va); - page = compound_head(page); put_page(page); } diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 01294a5099dd..108d1f580177 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -1192,8 +1192,6 @@ static void unpin_slot(struct kvm *kvm, int slot_id) continue; pfn = physp[j] >> PAGE_SHIFT; page = pfn_to_page(pfn); - if (PageHuge(page)) - page = compound_head(page); SetPageDirty(page); put_page(page); } diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 38d48a59879c..9708851a8b9f 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -269,4 +269,4 @@ static int __init sunfire_init(void) return 0; } -subsys_initcall(sunfire_init); +fs_initcall(sunfire_init); diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S index b57a5942ba64..874162a11ceb 100644 --- a/arch/sparc/mm/ultra.S +++ b/arch/sparc/mm/ultra.S @@ -495,11 +495,11 @@ xcall_fetch_glob_regs: stx %o7, [%g1 + GR_SNAP_O7] stx %i7, [%g1 + GR_SNAP_I7] /* Don't try this at home kids... */ - rdpr %cwp, %g2 - sub %g2, 1, %g7 + rdpr %cwp, %g3 + sub %g3, 1, %g7 wrpr %g7, %cwp mov %i7, %g7 - wrpr %g2, %cwp + wrpr %g3, %cwp stx %g7, [%g1 + GR_SNAP_RPC] sethi %hi(trap_block), %g7 or %g7, %lo(trap_block), %g7 diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index b8ba6e4a27e4..e554e5ad2fe8 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -79,7 +79,6 @@ struct kvm_task_sleep_node { u32 token; int cpu; bool halted; - struct mm_struct *mm; }; static struct kvm_task_sleep_head { @@ -126,9 +125,7 @@ void kvm_async_pf_task_wait(u32 token) n.token = token; n.cpu = smp_processor_id(); - n.mm = current->active_mm; n.halted = idle || preempt_count() > 1; - atomic_inc(&n.mm->mm_count); init_waitqueue_head(&n.wq); hlist_add_head(&n.link, &b->list); spin_unlock(&b->lock); @@ -161,9 +158,6 @@ EXPORT_SYMBOL_GPL(kvm_async_pf_task_wait); static void apf_task_wake_one(struct kvm_task_sleep_node *n) { hlist_del_init(&n->link); - if (!n->mm) - return; - mmdrop(n->mm); if (n->halted) smp_send_reschedule(n->cpu); else if (waitqueue_active(&n->wq)) @@ -207,7 +201,7 @@ again: * async PF was not yet handled. * Add dummy entry for the token. */ - n = kmalloc(sizeof(*n), GFP_ATOMIC); + n = kzalloc(sizeof(*n), GFP_ATOMIC); if (!n) { /* * Allocation failed! Busy wait while other cpu @@ -219,7 +213,6 @@ again: } n->token = token; n->cpu = smp_processor_id(); - n->mm = NULL; init_waitqueue_head(&n->wq); hlist_add_head(&n->link, &b->list); } else diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 733ca39f367e..43d8b48b23e6 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -423,6 +423,7 @@ void set_personality_ia32(bool x32) current_thread_info()->status |= TS_COMPAT; } } +EXPORT_SYMBOL_GPL(set_personality_ia32); unsigned long get_wchan(struct task_struct *p) { diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 71f4727da373..5a98aa272184 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -185,10 +185,22 @@ void __init setup_per_cpu_areas(void) #endif rc = -EINVAL; if (pcpu_chosen_fc != PCPU_FC_PAGE) { - const size_t atom_size = cpu_has_pse ? PMD_SIZE : PAGE_SIZE; const size_t dyn_size = PERCPU_MODULE_RESERVE + PERCPU_DYNAMIC_RESERVE - PERCPU_FIRST_CHUNK_RESERVE; + size_t atom_size; + /* + * On 64bit, use PMD_SIZE for atom_size so that embedded + * percpu areas are aligned to PMD. This, in the future, + * can also allow using PMD mappings in vmalloc area. Use + * PAGE_SIZE on 32bit as vmalloc space is highly contended + * and large vmalloc area allocs can easily fail. + */ +#ifdef CONFIG_X86_64 + atom_size = PMD_SIZE; +#else + atom_size = PAGE_SIZE; +#endif rc = pcpu_embed_first_chunk(PERCPU_FIRST_CHUNK_RESERVE, dyn_size, atom_size, pcpu_cpu_distance, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 91a5e989abcf..185a2b823a2d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6581,6 +6581,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu, kvm_inject_page_fault(vcpu, &fault); } vcpu->arch.apf.halted = false; + vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE; } bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index a8f8844b8d32..95dccce8e979 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -63,6 +63,7 @@ #include <asm/stackprotector.h> #include <asm/hypervisor.h> #include <asm/mwait.h> +#include <asm/pci_x86.h> #ifdef CONFIG_ACPI #include <linux/acpi.h> @@ -809,9 +810,40 @@ static void xen_io_delay(void) } #ifdef CONFIG_X86_LOCAL_APIC +static unsigned long xen_set_apic_id(unsigned int x) +{ + WARN_ON(1); + return x; +} +static unsigned int xen_get_apic_id(unsigned long x) +{ + return ((x)>>24) & 0xFFu; +} static u32 xen_apic_read(u32 reg) { - return 0; + struct xen_platform_op op = { + .cmd = XENPF_get_cpuinfo, + .interface_version = XENPF_INTERFACE_VERSION, + .u.pcpu_info.xen_cpuid = 0, + }; + int ret = 0; + + /* Shouldn't need this as APIC is turned off for PV, and we only + * get called on the bootup processor. But just in case. */ + if (!xen_initial_domain() || smp_processor_id()) + return 0; + + if (reg == APIC_LVR) + return 0x10; + + if (reg != APIC_ID) + return 0; + + ret = HYPERVISOR_dom0_op(&op); + if (ret) + return 0; + + return op.u.pcpu_info.apic_id << 24; } static void xen_apic_write(u32 reg, u32 val) @@ -849,6 +881,8 @@ static void set_xen_basic_apic_ops(void) apic->icr_write = xen_apic_icr_write; apic->wait_icr_idle = xen_apic_wait_icr_idle; apic->safe_wait_icr_idle = xen_safe_apic_wait_icr_idle; + apic->set_apic_id = xen_set_apic_id; + apic->get_apic_id = xen_get_apic_id; } #endif @@ -1365,8 +1399,10 @@ asmlinkage void __init xen_start_kernel(void) /* Make sure ACS will be enabled */ pci_request_acs(); } - - +#ifdef CONFIG_PCI + /* PCI BIOS service won't work from a PV guest. */ + pci_probe &= ~PCI_PROBE_BIOS; +#endif xen_raw_console_write("about to get started...\n"); xen_setup_runstate_info(0); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index b8e279479a6b..69f5857660ac 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -353,8 +353,13 @@ static pteval_t pte_mfn_to_pfn(pteval_t val) { if (val & _PAGE_PRESENT) { unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT; + unsigned long pfn = mfn_to_pfn(mfn); + pteval_t flags = val & PTE_FLAGS_MASK; - val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; + if (unlikely(pfn == ~0)) + val = flags & ~_PAGE_PRESENT; + else + val = ((pteval_t)pfn << PAGE_SHIFT) | flags; } return val; |