diff options
Diffstat (limited to 'arch')
194 files changed, 1866 insertions, 805 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 2ee0c9bfd032..9063ae6553cc 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -8,6 +8,7 @@ config ARC def_bool y + select BUILDTIME_EXTABLE_SORT select CLONE_BACKWARDS # ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev select DEVTMPFS if !INITRAMFS_SOURCE="" diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h index 6f30484f34b7..39e58d1cdf90 100644 --- a/arch/arc/include/uapi/asm/unistd.h +++ b/arch/arc/include/uapi/asm/unistd.h @@ -8,6 +8,13 @@ /******** no-legacy-syscalls-ABI *******/ +/* + * Non-typical guard macro to enable inclusion twice in ARCH sys.c + * That is how the Generic syscall wrapper generator works + */ +#if !defined(_UAPI_ASM_ARC_UNISTD_H) || defined(__SYSCALL) +#define _UAPI_ASM_ARC_UNISTD_H + #define __ARCH_WANT_SYS_EXECVE #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_VFORK @@ -32,3 +39,7 @@ __SYSCALL(__NR_arc_gettls, sys_arc_gettls) /* Generic syscall (fs/filesystems.c - lost in asm-generic/unistd.h */ #define __NR_sysfs (__NR_arch_specific_syscall + 3) __SYSCALL(__NR_sysfs, sys_sysfs) + +#undef __SYSCALL + +#endif diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c index e46d81f70979..63177e4cb66d 100644 --- a/arch/arc/kernel/perf_event.c +++ b/arch/arc/kernel/perf_event.c @@ -79,9 +79,9 @@ static int arc_pmu_cache_event(u64 config) cache_result = (config >> 16) & 0xff; if (cache_type >= PERF_COUNT_HW_CACHE_MAX) return -EINVAL; - if (cache_type >= PERF_COUNT_HW_CACHE_OP_MAX) + if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX) return -EINVAL; - if (cache_type >= PERF_COUNT_HW_CACHE_RESULT_MAX) + if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX) return -EINVAL; ret = arc_pmu_cache_map[cache_type][cache_op][cache_result]; diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c1f1a7eee953..f219c30eb4e1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -6,12 +6,13 @@ config ARM select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT if MMU select CLONE_BACKWARDS select CPU_PM if (SUSPEND || CPU_IDLE) - select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU + select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI) select GENERIC_CLOCKEVENTS_BROADCAST if SMP select GENERIC_IDLE_POLL_SETUP @@ -35,6 +36,7 @@ config ARM select HAVE_DMA_ATTRS select HAVE_DMA_CONTIGUOUS if MMU select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) + select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) @@ -1651,9 +1653,6 @@ config HZ config SCHED_HRTICK def_bool HIGH_RES_TIMERS -config SCHED_HRTICK - def_bool HIGH_RES_TIMERS - config THUMB2_KERNEL bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K @@ -1946,6 +1945,7 @@ config ZBOOT_ROM_BSS config ZBOOT_ROM bool "Compressed boot loader in ROM/flash" depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS + depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR help Say Y here if you intend to execute your compressed kernel image (zImage) directly from ROM or flash. If unsure, say N. @@ -1981,7 +1981,7 @@ endchoice config ARM_APPENDED_DTB bool "Use appended device tree blob to zImage (EXPERIMENTAL)" - depends on OF && !ZBOOT_ROM + depends on OF help With this option, the boot code will look for a device tree binary (DTB) appended to zImage @@ -2069,7 +2069,7 @@ endchoice config XIP_KERNEL bool "Kernel Execute-In-Place from ROM" - depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM + depends on !ARM_LPAE && !ARCH_MULTIPLATFORM help Execute-In-Place allows the kernel to run from non-volatile storage directly addressable by the CPU, such as NOR flash. This saves RAM @@ -2132,7 +2132,6 @@ config CRASH_DUMP config AUTO_ZRELADDR bool "Auto calculation of the decompressed kernel image address" - depends on !ZBOOT_ROM help ZRELADDR is the physical address where the decompressed kernel image will be placed. If AUTO_ZRELADDR is selected, the address diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 5765abf5ce84..9afabbb5e798 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -2,6 +2,18 @@ menu "Kernel hacking" source "lib/Kconfig.debug" +config ARM_PTDUMP + bool "Export kernel pagetable layout to userspace via debugfs" + depends on DEBUG_KERNEL + select DEBUG_FS + ---help--- + Say Y here if you want to show the kernel pagetable layout in a + debugfs file. This information is only useful for kernel developers + who are working in architecture specific areas of the kernel. + It is probably not a good idea to enable this feature in a production + kernel. + If in doubt, say "N" + config STRICT_DEVMEM bool "Filter access to /dev/mem" depends on MMU @@ -94,6 +106,17 @@ choice depends on ARCH_BCM2835 select DEBUG_UART_PL01X + config DEBUG_BCM_KONA_UART + bool "Kernel low-level debugging messages via BCM KONA UART" + depends on ARCH_BCM + select DEBUG_UART_8250 + help + Say Y here if you want kernel low-level debugging support + on Broadcom SoC platforms. + This low level debug works for Broadcom + mobile SoCs in the Kona family of chips (e.g. bcm28155, + bcm11351, etc...) + config DEBUG_CLPS711X_UART1 bool "Kernel low-level debugging messages via UART1" depends on ARCH_CLPS711X @@ -988,6 +1011,7 @@ config DEBUG_UART_PHYS default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 default 0x20201000 if DEBUG_BCM2835 + default 0x3e000000 if DEBUG_BCM_KONA_UART default 0x4000e400 if DEBUG_LL_UART_EFM32 default 0x40090000 if ARCH_LPC32XX default 0x40100000 if DEBUG_PXA_UART1 @@ -1049,6 +1073,7 @@ config DEBUG_UART_VIRT default 0xfe018000 if DEBUG_MMP_UART3 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART default 0xfe230000 if DEBUG_PICOXCELL_UART + default 0xfe300000 if DEBUG_BCM_KONA_UART default 0xfe800000 if ARCH_IOP32X default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HI3716_UART default 0xfeb24000 if DEBUG_RK3X_UART0 @@ -1091,7 +1116,8 @@ config DEBUG_UART_8250_WORD default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \ ARCH_KEYSTONE || \ DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ - DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1 + DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_DAVINCI_TNETV107X_UART1 || \ + DEBUG_BCM_KONA_UART config DEBUG_UART_8250_FLOW_CONTROL bool "Enable flow control for 8250 UART" @@ -1150,4 +1176,15 @@ config PID_IN_CONTEXTIDR additional instructions during context switch. Say Y here only if you are planning to use hardware trace tools with this kernel. +config DEBUG_SET_MODULE_RONX + bool "Set loadable kernel module data as NX and text as RO" + depends on MODULES + ---help--- + This option helps catch unintended modifications to loadable + kernel module's text and read-only data. It also prevents execution + of module data. Such protection may interfere with run-time code + patching and dynamic kernel tracing - and they might also protect + against certain classes of kernel exploits. + If in doubt, say "N". + endmenu diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index e7190bb5998e..4bb86d9a749d 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -108,12 +108,12 @@ endif targets := vmlinux vmlinux.lds \ piggy.$(suffix_y) piggy.$(suffix_y).o \ - lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S \ - font.o font.c head.o misc.o $(OBJS) + lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \ + bswapsdi2.S font.o font.c head.o misc.o $(OBJS) # Make sure files are removed during clean extra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \ - lib1funcs.S ashldi3.S $(libfdt) $(libfdt_hdrs) \ + lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \ hyp-stub.S ifeq ($(CONFIG_FUNCTION_TRACER),y) @@ -156,6 +156,12 @@ ashldi3 = $(obj)/ashldi3.o $(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S $(call cmd,shipped) +# For __bswapsi2, __bswapdi2 +bswapsdi2 = $(obj)/bswapsdi2.o + +$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S + $(call cmd,shipped) + # We need to prevent any GOTOFF relocs being used with references # to symbols in the .bss section since we cannot relocate them # independently from the rest at run time. This can be achieved by @@ -177,7 +183,8 @@ if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \ fi $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ - $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) FORCE + $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \ + $(bswapsdi2) FORCE @$(check_for_multiple_zreladdr) $(call if_changed,ld) @$(check_for_bad_syms) diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts index e99dfaf70052..03fcbf0a88a8 100644 --- a/arch/arm/boot/dts/am3517-evm.dts +++ b/arch/arm/boot/dts/am3517-evm.dts @@ -7,11 +7,11 @@ */ /dts-v1/; -#include "omap34xx.dtsi" +#include "am3517.dtsi" / { - model = "TI AM3517 EVM (AM3517/05)"; - compatible = "ti,am3517-evm", "ti,omap3"; + model = "TI AM3517 EVM (AM3517/05 TMDSEVM3517)"; + compatible = "ti,am3517-evm", "ti,am3517", "ti,omap3"; memory { device_type = "memory"; diff --git a/arch/arm/boot/dts/am3517.dtsi b/arch/arm/boot/dts/am3517.dtsi new file mode 100644 index 000000000000..2fbe02faa8b1 --- /dev/null +++ b/arch/arm/boot/dts/am3517.dtsi @@ -0,0 +1,63 @@ +/* + * Device Tree Source for am3517 SoC + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/ + * + * 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 "omap3.dtsi" + +/ { + aliases { + serial3 = &uart4; + }; + + ocp { + am35x_otg_hs: am35x_otg_hs@5c040000 { + compatible = "ti,omap3-musb"; + ti,hwmods = "am35x_otg_hs"; + status = "disabled"; + reg = <0x5c040000 0x1000>; + interrupts = <71>; + interrupt-names = "mc"; + }; + + davinci_emac: ethernet@0x5c000000 { + compatible = "ti,am3517-emac"; + ti,hwmods = "davinci_emac"; + status = "disabled"; + reg = <0x5c000000 0x30000>; + interrupts = <67 68 69 70>; + ti,davinci-ctrl-reg-offset = <0x10000>; + ti,davinci-ctrl-mod-reg-offset = <0>; + ti,davinci-ctrl-ram-offset = <0x20000>; + ti,davinci-ctrl-ram-size = <0x2000>; + ti,davinci-rmii-en = /bits/ 8 <1>; + local-mac-address = [ 00 00 00 00 00 00 ]; + }; + + davinci_mdio: ethernet@0x5c030000 { + compatible = "ti,davinci_mdio"; + ti,hwmods = "davinci_mdio"; + status = "disabled"; + reg = <0x5c030000 0x1000>; + bus_freq = <1000000>; + #address-cells = <1>; + #size-cells = <0>; + }; + + uart4: serial@4809e000 { + compatible = "ti,omap3-uart"; + ti,hwmods = "uart4"; + status = "disabled"; + reg = <0x4809e000 0x400>; + interrupts = <84>; + dmas = <&sdma 55 &sdma 54>; + dma-names = "tx", "rx"; + clock-frequency = <48000000>; + }; + }; +}; diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index c2c306d13b87..6fc85f963530 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -9,7 +9,7 @@ /dts-v1/; -#include "omap34xx.dtsi" +#include "omap34xx-hs.dtsi" / { model = "Nokia N900"; diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi index 94eb77d3b9dd..5c26c184f2c1 100644 --- a/arch/arm/boot/dts/omap3-n950-n9.dtsi +++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi @@ -8,7 +8,7 @@ * published by the Free Software Foundation. */ -#include "omap36xx.dtsi" +#include "omap36xx-hs.dtsi" / { cpus { diff --git a/arch/arm/boot/dts/omap34xx-hs.dtsi b/arch/arm/boot/dts/omap34xx-hs.dtsi new file mode 100644 index 000000000000..1ff626489546 --- /dev/null +++ b/arch/arm/boot/dts/omap34xx-hs.dtsi @@ -0,0 +1,16 @@ +/* Disabled modules for secure omaps */ + +#include "omap34xx.dtsi" + +/* Secure omaps have some devices inaccessible depending on the firmware */ +&aes { + status = "disabled"; +}; + +&sham { + status = "disabled"; +}; + +&timer12 { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/omap36xx-hs.dtsi b/arch/arm/boot/dts/omap36xx-hs.dtsi new file mode 100644 index 000000000000..2c7febb0e016 --- /dev/null +++ b/arch/arm/boot/dts/omap36xx-hs.dtsi @@ -0,0 +1,16 @@ +/* Disabled modules for secure omaps */ + +#include "omap36xx.dtsi" + +/* Secure omaps have some devices inaccessible depending on the firmware */ +&aes { + status = "disabled"; +}; + +&sham { + status = "disabled"; +}; + +&timer12 { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi index ee845fad939b..9987dd0e9c59 100644 --- a/arch/arm/boot/dts/r8a7790.dtsi +++ b/arch/arm/boot/dts/r8a7790.dtsi @@ -87,9 +87,9 @@ interrupts = <1 9 0xf04>; }; - gpio0: gpio@ffc40000 { + gpio0: gpio@e6050000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc40000 0 0x2c>; + reg = <0 0xe6050000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 4 0x4>; #gpio-cells = <2>; @@ -99,9 +99,9 @@ interrupt-controller; }; - gpio1: gpio@ffc41000 { + gpio1: gpio@e6051000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc41000 0 0x2c>; + reg = <0 0xe6051000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 5 0x4>; #gpio-cells = <2>; @@ -111,9 +111,9 @@ interrupt-controller; }; - gpio2: gpio@ffc42000 { + gpio2: gpio@e6052000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc42000 0 0x2c>; + reg = <0 0xe6052000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 6 0x4>; #gpio-cells = <2>; @@ -123,9 +123,9 @@ interrupt-controller; }; - gpio3: gpio@ffc43000 { + gpio3: gpio@e6053000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc43000 0 0x2c>; + reg = <0 0xe6053000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 7 0x4>; #gpio-cells = <2>; @@ -135,9 +135,9 @@ interrupt-controller; }; - gpio4: gpio@ffc44000 { + gpio4: gpio@e6054000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc44000 0 0x2c>; + reg = <0 0xe6054000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 8 0x4>; #gpio-cells = <2>; @@ -147,9 +147,9 @@ interrupt-controller; }; - gpio5: gpio@ffc45000 { + gpio5: gpio@e6055000 { compatible = "renesas,gpio-r8a7790", "renesas,gpio-rcar"; - reg = <0 0xffc45000 0 0x2c>; + reg = <0 0xe6055000 0 0x50>; interrupt-parent = <&gic>; interrupts = <0 9 0x4>; #gpio-cells = <2>; @@ -241,7 +241,7 @@ sdhi0: sdhi@ee100000 { compatible = "renesas,sdhi-r8a7790"; - reg = <0 0xee100000 0 0x100>; + reg = <0 0xee100000 0 0x200>; interrupt-parent = <&gic>; interrupts = <0 165 4>; cap-sd-highspeed; @@ -250,7 +250,7 @@ sdhi1: sdhi@ee120000 { compatible = "renesas,sdhi-r8a7790"; - reg = <0 0xee120000 0 0x100>; + reg = <0 0xee120000 0 0x200>; interrupt-parent = <&gic>; interrupts = <0 166 4>; cap-sd-highspeed; diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi index c1751a64889a..7f5878c2784a 100644 --- a/arch/arm/boot/dts/sun6i-a31.dtsi +++ b/arch/arm/boot/dts/sun6i-a31.dtsi @@ -193,7 +193,10 @@ pio: pinctrl@01c20800 { compatible = "allwinner,sun6i-a31-pinctrl"; reg = <0x01c20800 0x400>; - interrupts = <0 11 1>, <0 15 1>, <0 16 1>, <0 17 1>; + interrupts = <0 11 4>, + <0 15 4>, + <0 16 4>, + <0 17 4>; clocks = <&apb1_gates 5>; gpio-controller; interrupt-controller; @@ -212,11 +215,11 @@ timer@01c20c00 { compatible = "allwinner,sun4i-timer"; reg = <0x01c20c00 0xa0>; - interrupts = <0 18 1>, - <0 19 1>, - <0 20 1>, - <0 21 1>, - <0 22 1>; + interrupts = <0 18 4>, + <0 19 4>, + <0 20 4>, + <0 21 4>, + <0 22 4>; clocks = <&osc24M>; }; @@ -228,7 +231,7 @@ uart0: serial@01c28000 { compatible = "snps,dw-apb-uart"; reg = <0x01c28000 0x400>; - interrupts = <0 0 1>; + interrupts = <0 0 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 16>; @@ -238,7 +241,7 @@ uart1: serial@01c28400 { compatible = "snps,dw-apb-uart"; reg = <0x01c28400 0x400>; - interrupts = <0 1 1>; + interrupts = <0 1 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 17>; @@ -248,7 +251,7 @@ uart2: serial@01c28800 { compatible = "snps,dw-apb-uart"; reg = <0x01c28800 0x400>; - interrupts = <0 2 1>; + interrupts = <0 2 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 18>; @@ -258,7 +261,7 @@ uart3: serial@01c28c00 { compatible = "snps,dw-apb-uart"; reg = <0x01c28c00 0x400>; - interrupts = <0 3 1>; + interrupts = <0 3 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 19>; @@ -268,7 +271,7 @@ uart4: serial@01c29000 { compatible = "snps,dw-apb-uart"; reg = <0x01c29000 0x400>; - interrupts = <0 4 1>; + interrupts = <0 4 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 20>; @@ -278,7 +281,7 @@ uart5: serial@01c29400 { compatible = "snps,dw-apb-uart"; reg = <0x01c29400 0x400>; - interrupts = <0 5 1>; + interrupts = <0 5 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb2_gates 21>; diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index e46cfedde74c..367611a0730b 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -170,7 +170,7 @@ emac: ethernet@01c0b000 { compatible = "allwinner,sun4i-emac"; reg = <0x01c0b000 0x1000>; - interrupts = <0 55 1>; + interrupts = <0 55 4>; clocks = <&ahb_gates 17>; status = "disabled"; }; @@ -186,7 +186,7 @@ pio: pinctrl@01c20800 { compatible = "allwinner,sun7i-a20-pinctrl"; reg = <0x01c20800 0x400>; - interrupts = <0 28 1>; + interrupts = <0 28 4>; clocks = <&apb0_gates 5>; gpio-controller; interrupt-controller; @@ -251,12 +251,12 @@ timer@01c20c00 { compatible = "allwinner,sun4i-timer"; reg = <0x01c20c00 0x90>; - interrupts = <0 22 1>, - <0 23 1>, - <0 24 1>, - <0 25 1>, - <0 67 1>, - <0 68 1>; + interrupts = <0 22 4>, + <0 23 4>, + <0 24 4>, + <0 25 4>, + <0 67 4>, + <0 68 4>; clocks = <&osc24M>; }; @@ -273,7 +273,7 @@ uart0: serial@01c28000 { compatible = "snps,dw-apb-uart"; reg = <0x01c28000 0x400>; - interrupts = <0 1 1>; + interrupts = <0 1 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 16>; @@ -283,7 +283,7 @@ uart1: serial@01c28400 { compatible = "snps,dw-apb-uart"; reg = <0x01c28400 0x400>; - interrupts = <0 2 1>; + interrupts = <0 2 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 17>; @@ -293,7 +293,7 @@ uart2: serial@01c28800 { compatible = "snps,dw-apb-uart"; reg = <0x01c28800 0x400>; - interrupts = <0 3 1>; + interrupts = <0 3 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 18>; @@ -303,7 +303,7 @@ uart3: serial@01c28c00 { compatible = "snps,dw-apb-uart"; reg = <0x01c28c00 0x400>; - interrupts = <0 4 1>; + interrupts = <0 4 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 19>; @@ -313,7 +313,7 @@ uart4: serial@01c29000 { compatible = "snps,dw-apb-uart"; reg = <0x01c29000 0x400>; - interrupts = <0 17 1>; + interrupts = <0 17 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 20>; @@ -323,7 +323,7 @@ uart5: serial@01c29400 { compatible = "snps,dw-apb-uart"; reg = <0x01c29400 0x400>; - interrupts = <0 18 1>; + interrupts = <0 18 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 21>; @@ -333,7 +333,7 @@ uart6: serial@01c29800 { compatible = "snps,dw-apb-uart"; reg = <0x01c29800 0x400>; - interrupts = <0 19 1>; + interrupts = <0 19 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 22>; @@ -343,7 +343,7 @@ uart7: serial@01c29c00 { compatible = "snps,dw-apb-uart"; reg = <0x01c29c00 0x400>; - interrupts = <0 20 1>; + interrupts = <0 20 4>; reg-shift = <2>; reg-io-width = <4>; clocks = <&apb1_gates 23>; @@ -353,7 +353,7 @@ i2c0: i2c@01c2ac00 { compatible = "allwinner,sun4i-i2c"; reg = <0x01c2ac00 0x400>; - interrupts = <0 7 1>; + interrupts = <0 7 4>; clocks = <&apb1_gates 0>; clock-frequency = <100000>; status = "disabled"; @@ -362,7 +362,7 @@ i2c1: i2c@01c2b000 { compatible = "allwinner,sun4i-i2c"; reg = <0x01c2b000 0x400>; - interrupts = <0 8 1>; + interrupts = <0 8 4>; clocks = <&apb1_gates 1>; clock-frequency = <100000>; status = "disabled"; @@ -371,7 +371,7 @@ i2c2: i2c@01c2b400 { compatible = "allwinner,sun4i-i2c"; reg = <0x01c2b400 0x400>; - interrupts = <0 9 1>; + interrupts = <0 9 4>; clocks = <&apb1_gates 2>; clock-frequency = <100000>; status = "disabled"; @@ -380,7 +380,7 @@ i2c3: i2c@01c2b800 { compatible = "allwinner,sun4i-i2c"; reg = <0x01c2b800 0x400>; - interrupts = <0 88 1>; + interrupts = <0 88 4>; clocks = <&apb1_gates 3>; clock-frequency = <100000>; status = "disabled"; @@ -389,7 +389,7 @@ i2c4: i2c@01c2bc00 { compatible = "allwinner,sun4i-i2c"; reg = <0x01c2bc00 0x400>; - interrupts = <0 89 1>; + interrupts = <0 89 4>; clocks = <&apb1_gates 15>; clock-frequency = <100000>; status = "disabled"; diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c index 26020a03f659..1e361abc29eb 100644 --- a/arch/arm/common/mcpm_entry.c +++ b/arch/arm/common/mcpm_entry.c @@ -35,8 +35,7 @@ void mcpm_set_early_poke(unsigned cpu, unsigned cluster, unsigned long *poke = &mcpm_entry_early_pokes[cluster][cpu][0]; poke[0] = poke_phys_addr; poke[1] = poke_val; - __cpuc_flush_dcache_area((void *)poke, 8); - outer_clean_range(__pa(poke), __pa(poke + 2)); + __sync_cache_range_w(poke, 2 * sizeof(*poke)); } static const struct mcpm_platform_ops *platform_ops; @@ -167,7 +166,7 @@ void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster) dmb(); mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_DOWN; sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu); - dsb_sev(); + sev(); } /* @@ -183,7 +182,7 @@ void __mcpm_outbound_leave_critical(unsigned int cluster, int state) dmb(); mcpm_sync.clusters[cluster].cluster = state; sync_cache_w(&mcpm_sync.clusters[cluster].cluster); - dsb_sev(); + sev(); } /* diff --git a/arch/arm/crypto/aesbs-core.S_shipped b/arch/arm/crypto/aesbs-core.S_shipped index 64205d453260..71e5fc7cfb18 100644 --- a/arch/arm/crypto/aesbs-core.S_shipped +++ b/arch/arm/crypto/aesbs-core.S_shipped @@ -58,7 +58,7 @@ # define VFP_ABI_FRAME 0 # define BSAES_ASM_EXTENDED_KEY # define XTS_CHAIN_TWEAK -# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +# define __ARM_ARCH__ 7 #endif #ifdef __thumb__ diff --git a/arch/arm/crypto/bsaes-armv7.pl b/arch/arm/crypto/bsaes-armv7.pl index f3d96d932573..be068db960ee 100644 --- a/arch/arm/crypto/bsaes-armv7.pl +++ b/arch/arm/crypto/bsaes-armv7.pl @@ -701,7 +701,7 @@ $code.=<<___; # define VFP_ABI_FRAME 0 # define BSAES_ASM_EXTENDED_KEY # define XTS_CHAIN_TWEAK -# define __ARM_ARCH__ __LINUX_ARM_ARCH__ +# define __ARM_ARCH__ 7 #endif #ifdef __thumb__ diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index ee753f1749cd..e9a49fe0284e 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -481,4 +481,9 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size) : : : "r0","r1","r2","r3","r4","r5","r6","r7", \ "r9","r10","lr","memory" ) +int set_memory_ro(unsigned long addr, int numpages); +int set_memory_rw(unsigned long addr, int numpages); +int set_memory_x(unsigned long addr, int numpages); +int set_memory_nx(unsigned long addr, int numpages); + #endif diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h index 6dcc16430868..523315115478 100644 --- a/arch/arm/include/asm/checksum.h +++ b/arch/arm/include/asm/checksum.h @@ -87,19 +87,33 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, __wsum sum) { - __asm__( - "adds %0, %1, %2 @ csum_tcpudp_nofold \n\ - adcs %0, %0, %3 \n" + u32 lenprot = len | proto << 16; + if (__builtin_constant_p(sum) && sum == 0) { + __asm__( + "adds %0, %1, %2 @ csum_tcpudp_nofold0 \n\t" #ifdef __ARMEB__ - "adcs %0, %0, %4 \n" + "adcs %0, %0, %3 \n\t" #else - "adcs %0, %0, %4, lsl #8 \n" + "adcs %0, %0, %3, ror #8 \n\t" #endif - "adcs %0, %0, %5 \n\ - adc %0, %0, #0" - : "=&r"(sum) - : "r" (sum), "r" (daddr), "r" (saddr), "r" (len), "Ir" (htons(proto)) - : "cc"); + "adc %0, %0, #0" + : "=&r" (sum) + : "r" (daddr), "r" (saddr), "r" (lenprot) + : "cc"); + } else { + __asm__( + "adds %0, %1, %2 @ csum_tcpudp_nofold \n\t" + "adcs %0, %0, %3 \n\t" +#ifdef __ARMEB__ + "adcs %0, %0, %4 \n\t" +#else + "adcs %0, %0, %4, ror #8 \n\t" +#endif + "adc %0, %0, #0" + : "=&r"(sum) + : "r" (sum), "r" (daddr), "r" (saddr), "r" (lenprot) + : "cc"); + } return sum; } /* diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 3b2c40b5bfa2..6795ff743b3d 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -131,6 +131,7 @@ struct l2x0_regs { unsigned long prefetch_ctrl; unsigned long pwr_ctrl; unsigned long ctrl; + unsigned long aux2_ctrl; }; extern struct l2x0_regs l2x0_saved_regs; diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 3c597c222ef2..fbeb39c869e9 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -329,7 +329,7 @@ extern void _memset_io(volatile void __iomem *, int, size_t); */ #define ioremap(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) #define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE) -#define ioremap_cached(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED) +#define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED) #define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC) #define iounmap __arm_iounmap diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index 2fe141fcc8d6..f98c7f32c9c8 100644 --- a/arch/arm/include/asm/mach/map.h +++ b/arch/arm/include/asm/mach/map.h @@ -22,18 +22,21 @@ struct map_desc { }; /* types 0-3 are defined in asm/io.h */ -#define MT_UNCACHED 4 -#define MT_CACHECLEAN 5 -#define MT_MINICLEAN 6 -#define MT_LOW_VECTORS 7 -#define MT_HIGH_VECTORS 8 -#define MT_MEMORY 9 -#define MT_ROM 10 -#define MT_MEMORY_NONCACHED 11 -#define MT_MEMORY_DTCM 12 -#define MT_MEMORY_ITCM 13 -#define MT_MEMORY_SO 14 -#define MT_MEMORY_DMA_READY 15 +enum { + MT_UNCACHED = 4, + MT_CACHECLEAN, + MT_MINICLEAN, + MT_LOW_VECTORS, + MT_HIGH_VECTORS, + MT_MEMORY_RWX, + MT_MEMORY_RW, + MT_ROM, + MT_MEMORY_RWX_NONCACHED, + MT_MEMORY_RW_DTCM, + MT_MEMORY_RWX_ITCM, + MT_MEMORY_RW_SO, + MT_MEMORY_DMA_READY, +}; #ifdef CONFIG_MMU extern void iotable_init(struct map_desc *, int); diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 9ecccc865046..8756e4bcdba0 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -100,23 +100,19 @@ #define TASK_UNMAPPED_BASE UL(0x00000000) #endif -#ifndef PHYS_OFFSET -#define PHYS_OFFSET UL(CONFIG_DRAM_BASE) -#endif - #ifndef END_MEM #define END_MEM (UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE) #endif #ifndef PAGE_OFFSET -#define PAGE_OFFSET (PHYS_OFFSET) +#define PAGE_OFFSET PLAT_PHYS_OFFSET #endif /* * The module can be at any place in ram in nommu mode. */ #define MODULES_END (END_MEM) -#define MODULES_VADDR (PHYS_OFFSET) +#define MODULES_VADDR PAGE_OFFSET #define XIP_VIRT_ADDR(physaddr) (physaddr) @@ -157,6 +153,16 @@ #endif #define ARCH_PGD_MASK ((1 << ARCH_PGD_SHIFT) - 1) +/* + * PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical + * memory. This is used for XIP and NoMMU kernels, or by kernels which + * have their own mach/memory.h. Assembly code must always use + * PLAT_PHYS_OFFSET and not PHYS_OFFSET. + */ +#ifndef PLAT_PHYS_OFFSET +#define PLAT_PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) +#endif + #ifndef __ASSEMBLY__ /* @@ -239,6 +245,8 @@ static inline unsigned long __phys_to_virt(phys_addr_t x) #else +#define PHYS_OFFSET PLAT_PHYS_OFFSET + static inline phys_addr_t __virt_to_phys(unsigned long x) { return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET; @@ -251,17 +259,6 @@ static inline unsigned long __phys_to_virt(phys_addr_t x) #endif #endif -#endif /* __ASSEMBLY__ */ - -#ifndef PHYS_OFFSET -#ifdef PLAT_PHYS_OFFSET -#define PHYS_OFFSET PLAT_PHYS_OFFSET -#else -#define PHYS_OFFSET UL(CONFIG_PHYS_OFFSET) -#endif -#endif - -#ifndef __ASSEMBLY__ /* * PFNs are used to describe any physical page; this means @@ -350,7 +347,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define ARCH_PFN_OFFSET PHYS_PFN_OFFSET #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) +#define virt_addr_valid(kaddr) (((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) \ + && pfn_valid(__pa(kaddr) >> PAGE_SHIFT) ) #endif diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h index a98a2e112fae..680a83e94467 100644 --- a/arch/arm/include/asm/pci.h +++ b/arch/arm/include/asm/pci.h @@ -57,12 +57,9 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); -/* - * Dummy implementation; always return 0. - */ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { - return 0; + return channel ? 15 : 14; } #endif /* __KERNEL__ */ diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h index 86a659a19526..dfff709fda3c 100644 --- a/arch/arm/include/asm/pgtable-2level.h +++ b/arch/arm/include/asm/pgtable-2level.h @@ -160,6 +160,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr) return (pmd_t *)pud; } +#define pmd_large(pmd) (pmd_val(pmd) & 2) #define pmd_bad(pmd) (pmd_val(pmd) & 2) #define copy_pmd(pmdpd,pmdps) \ diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h index 4f9503908dca..03243f7eeddf 100644 --- a/arch/arm/include/asm/pgtable-3level.h +++ b/arch/arm/include/asm/pgtable-3level.h @@ -142,6 +142,7 @@ PMD_TYPE_TABLE) #define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \ PMD_TYPE_SECT) +#define pmd_large(pmd) pmd_sect(pmd) #define pud_clear(pudp) \ do { \ diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 1571d126e9dd..7d59b524f2af 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -254,6 +254,8 @@ PTE_BIT_FUNC(mkclean, &= ~L_PTE_DIRTY); PTE_BIT_FUNC(mkdirty, |= L_PTE_DIRTY); PTE_BIT_FUNC(mkold, &= ~L_PTE_YOUNG); PTE_BIT_FUNC(mkyoung, |= L_PTE_YOUNG); +PTE_BIT_FUNC(mkexec, &= ~L_PTE_XN); +PTE_BIT_FUNC(mknexec, |= L_PTE_XN); static inline pte_t pte_mkspecial(pte_t pte) { return pte; } diff --git a/arch/arm/include/asm/word-at-a-time.h b/arch/arm/include/asm/word-at-a-time.h index 4d52f92967a6..a6d0a29861e7 100644 --- a/arch/arm/include/asm/word-at-a-time.h +++ b/arch/arm/include/asm/word-at-a-time.h @@ -48,10 +48,14 @@ static inline unsigned long find_zero(unsigned long mask) return ret; } -#ifdef CONFIG_DCACHE_WORD_ACCESS - #define zero_bytemask(mask) (mask) +#else /* __ARMEB__ */ +#include <asm-generic/word-at-a-time.h> +#endif + +#ifdef CONFIG_DCACHE_WORD_ACCESS + /* * Load an unaligned word from kernel space. * @@ -73,7 +77,11 @@ static inline unsigned long load_unaligned_zeropad(const void *addr) " bic %2, %2, #0x3\n" " ldr %0, [%2]\n" " lsl %1, %1, #0x3\n" +#ifndef __ARMEB__ " lsr %0, %0, %1\n" +#else + " lsl %0, %0, %1\n" +#endif " b 2b\n" " .popsection\n" " .pushsection __ex_table,\"a\"\n" @@ -86,11 +94,5 @@ static inline unsigned long load_unaligned_zeropad(const void *addr) return ret; } - #endif /* DCACHE_WORD_ACCESS */ - -#else /* __ARMEB__ */ -#include <asm-generic/word-at-a-time.h> -#endif - #endif /* __ASM_ARM_WORD_AT_A_TIME_H */ diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h index 75579a9d6f76..3759cacdd7f8 100644 --- a/arch/arm/include/asm/xen/page.h +++ b/arch/arm/include/asm/xen/page.h @@ -117,6 +117,6 @@ static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn) return __set_phys_to_machine(pfn, mfn); } -#define xen_remap(cookie, size) ioremap_cached((cookie), (size)); +#define xen_remap(cookie, size) ioremap_cache((cookie), (size)); #endif /* _ASM_ARM_XEN_PAGE_H */ diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c index 1f031ddd0667..85e664b6a5f1 100644 --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -35,6 +35,8 @@ extern void __ucmpdi2(void); extern void __udivsi3(void); extern void __umodsi3(void); extern void __do_div64(void); +extern void __bswapsi2(void); +extern void __bswapdi2(void); extern void __aeabi_idiv(void); extern void __aeabi_idivmod(void); @@ -114,6 +116,8 @@ EXPORT_SYMBOL(__ucmpdi2); EXPORT_SYMBOL(__udivsi3); EXPORT_SYMBOL(__umodsi3); EXPORT_SYMBOL(__do_div64); +EXPORT_SYMBOL(__bswapsi2); +EXPORT_SYMBOL(__bswapdi2); #ifdef CONFIG_AEABI EXPORT_SYMBOL(__aeabi_idiv); diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index 739c3dfc1da2..34d5fd585bbb 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -171,7 +171,7 @@ void __init arm_dt_init_cpu_maps(void) bool arch_match_cpu_phys_id(int cpu, u64 phys_id) { - return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu); + return phys_id == cpu_logical_map(cpu); } static const void * __init arch_get_next_mach(const char *const **match) diff --git a/arch/arm/kernel/entry-v7m.S b/arch/arm/kernel/entry-v7m.S index 52b26432c9a9..2260f1855820 100644 --- a/arch/arm/kernel/entry-v7m.S +++ b/arch/arm/kernel/entry-v7m.S @@ -14,8 +14,6 @@ #include <asm/thread_notify.h> #include <asm/v7m.h> -#include <mach/entry-macro.S> - #include "entry-header.S" #ifdef CONFIG_TRACE_IRQFLAGS diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index 8ff0ecdc637f..131a6ab5f355 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -385,7 +385,6 @@ out: return ret; out_unmap: - amba_set_drvdata(dev, NULL); iounmap(t->etb_regs); out_release: @@ -398,8 +397,6 @@ static int etb_remove(struct amba_device *dev) { struct tracectx *t = amba_get_drvdata(dev); - amba_set_drvdata(dev, NULL); - iounmap(t->etb_regs); t->etb_regs = NULL; @@ -588,7 +585,6 @@ out: return ret; out_unmap: - amba_set_drvdata(dev, NULL); iounmap(t->etm_regs); out_release: @@ -601,8 +597,6 @@ static int etm_remove(struct amba_device *dev) { struct tracectx *t = amba_get_drvdata(dev); - amba_set_drvdata(dev, NULL); - iounmap(t->etm_regs); t->etm_regs = NULL; diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index 14235ba64a90..716249cc2ee1 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -68,7 +68,7 @@ ENTRY(stext) #ifdef CONFIG_ARM_MPU /* Calculate the size of a region covering just the kernel */ - ldr r5, =PHYS_OFFSET @ Region start: PHYS_OFFSET + ldr r5, =PLAT_PHYS_OFFSET @ Region start: PHYS_OFFSET ldr r6, =(_end) @ Cover whole kernel sub r6, r6, r5 @ Minimum size of region to map clz r6, r6 @ Region size must be 2^N... @@ -213,7 +213,7 @@ ENTRY(__setup_mpu) set_region_nr r0, #MPU_RAM_REGION isb /* Full access from PL0, PL1, shared for CONFIG_SMP, cacheable */ - ldr r0, =PHYS_OFFSET @ RAM starts at PHYS_OFFSET + ldr r0, =PLAT_PHYS_OFFSET @ RAM starts at PHYS_OFFSET ldr r5,=(MPU_AP_PL1RW_PL0RW | MPU_RGN_NORMAL) setup_region r0, r5, r6, MPU_DATA_SIDE @ PHYS_OFFSET, shared, enabled diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 11d59b32fb8d..32f317e5828a 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -110,7 +110,7 @@ ENTRY(stext) sub r4, r3, r4 @ (PHYS_OFFSET - PAGE_OFFSET) add r8, r8, r4 @ PHYS_OFFSET #else - ldr r8, =PHYS_OFFSET @ always constant in this case + ldr r8, =PLAT_PHYS_OFFSET @ always constant in this case #endif /* diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c index d85055cd24ba..20d553c9f5e2 100644 --- a/arch/arm/kernel/perf_event_cpu.c +++ b/arch/arm/kernel/perf_event_cpu.c @@ -254,7 +254,7 @@ static int probe_current_pmu(struct arm_pmu *pmu) static int cpu_pmu_device_probe(struct platform_device *pdev) { const struct of_device_id *of_id; - int (*init_fn)(struct arm_pmu *); + const int (*init_fn)(struct arm_pmu *); struct device_node *node = pdev->dev.of_node; struct arm_pmu *pmu; int ret = -ENODEV; diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 94f6b05f9e24..92f7b15dd221 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -404,6 +404,7 @@ EXPORT_SYMBOL(dump_fpu); unsigned long get_wchan(struct task_struct *p) { struct stackframe frame; + unsigned long stack_page; int count = 0; if (!p || p == current || p->state == TASK_RUNNING) return 0; @@ -412,9 +413,11 @@ unsigned long get_wchan(struct task_struct *p) frame.sp = thread_saved_sp(p); frame.lr = 0; /* recovered from the stack */ frame.pc = thread_saved_pc(p); + stack_page = (unsigned long)task_stack_page(p); do { - int ret = unwind_frame(&frame); - if (ret < 0) + if (frame.sp < stack_page || + frame.sp >= stack_page + THREAD_SIZE || + unwind_frame(&frame) < 0) return 0; if (!in_sched_functions(frame.pc)) return frame.pc; diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 6a1b8a81b1ae..061cea820e3f 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -334,7 +334,7 @@ static void __init cacheid_init(void) cacheid = CACHEID_VIVT; } - printk("CPU: %s data cache, %s instruction cache\n", + pr_info("CPU: %s data cache, %s instruction cache\n", cache_is_vivt() ? "VIVT" : cache_is_vipt_aliasing() ? "VIPT aliasing" : cache_is_vipt_nonaliasing() ? "PIPT / VIPT nonaliasing" : "unknown", @@ -416,7 +416,7 @@ void notrace cpu_init(void) struct stack *stk = &stacks[cpu]; if (cpu >= NR_CPUS) { - printk(KERN_CRIT "CPU%u: bad primary CPU number\n", cpu); + pr_crit("CPU%u: bad primary CPU number\n", cpu); BUG(); } @@ -484,7 +484,7 @@ void __init smp_setup_processor_id(void) */ set_my_cpu_offset(0); - printk(KERN_INFO "Booting Linux on physical CPU 0x%x\n", mpidr); + pr_info("Booting Linux on physical CPU 0x%x\n", mpidr); } struct mpidr_hash mpidr_hash; @@ -564,8 +564,8 @@ static void __init setup_processor(void) */ list = lookup_processor_type(read_cpuid_id()); if (!list) { - printk("CPU configuration botched (ID %08x), unable " - "to continue.\n", read_cpuid_id()); + pr_err("CPU configuration botched (ID %08x), unable to continue.\n", + read_cpuid_id()); while (1); } @@ -585,9 +585,9 @@ static void __init setup_processor(void) cpu_cache = *list->cache; #endif - printk("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n", - cpu_name, read_cpuid_id(), read_cpuid_id() & 15, - proc_arch[cpu_architecture()], cr_alignment); + pr_info("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n", + cpu_name, read_cpuid_id(), read_cpuid_id() & 15, + proc_arch[cpu_architecture()], cr_alignment); snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c", list->arch_name, ENDIANNESS); @@ -629,8 +629,8 @@ int __init arm_add_memory(u64 start, u64 size) u64 aligned_start; if (meminfo.nr_banks >= NR_BANKS) { - printk(KERN_CRIT "NR_BANKS too low, " - "ignoring memory at 0x%08llx\n", (long long)start); + pr_crit("NR_BANKS too low, ignoring memory at 0x%08llx\n", + (long long)start); return -EINVAL; } @@ -643,14 +643,14 @@ int __init arm_add_memory(u64 start, u64 size) #ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT if (aligned_start > ULONG_MAX) { - printk(KERN_CRIT "Ignoring memory at 0x%08llx outside " - "32-bit physical address space\n", (long long)start); + pr_crit("Ignoring memory at 0x%08llx outside 32-bit physical address space\n", + (long long)start); return -EINVAL; } if (aligned_start + size > ULONG_MAX) { - printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in " - "32-bit physical address space\n", (long long)start); + pr_crit("Truncating memory at 0x%08llx to fit in 32-bit physical address space\n", + (long long)start); /* * To ensure bank->start + bank->size is representable in * 32 bits, we use ULONG_MAX as the upper limit rather than 4GB. @@ -660,6 +660,20 @@ int __init arm_add_memory(u64 start, u64 size) } #endif + if (aligned_start < PHYS_OFFSET) { + if (aligned_start + size <= PHYS_OFFSET) { + pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n", + aligned_start, aligned_start + size); + return -EINVAL; + } + + pr_info("Ignoring memory below PHYS_OFFSET: 0x%08llx-0x%08llx\n", + aligned_start, (u64)PHYS_OFFSET); + + size -= PHYS_OFFSET - aligned_start; + aligned_start = PHYS_OFFSET; + } + bank->start = aligned_start; bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1); @@ -819,16 +833,15 @@ static void __init reserve_crashkernel(void) ret = reserve_bootmem(crash_base, crash_size, BOOTMEM_EXCLUSIVE); if (ret < 0) { - printk(KERN_WARNING "crashkernel reservation failed - " - "memory is in use (0x%lx)\n", (unsigned long)crash_base); + pr_warn("crashkernel reservation failed - memory is in use (0x%lx)\n", + (unsigned long)crash_base); return; } - printk(KERN_INFO "Reserving %ldMB of memory at %ldMB " - "for crashkernel (System RAM: %ldMB)\n", - (unsigned long)(crash_size >> 20), - (unsigned long)(crash_base >> 20), - (unsigned long)(total_mem >> 20)); + pr_info("Reserving %ldMB of memory at %ldMB for crashkernel (System RAM: %ldMB)\n", + (unsigned long)(crash_size >> 20), + (unsigned long)(crash_base >> 20), + (unsigned long)(total_mem >> 20)); crashk_res.start = crash_base; crashk_res.end = crash_base + crash_size - 1; @@ -873,8 +886,6 @@ void __init setup_arch(char **cmdline_p) machine_desc = mdesc; machine_name = mdesc->name; - setup_dma_zone(mdesc); - if (mdesc->reboot_mode != REBOOT_HARD) reboot_mode = mdesc->reboot_mode; @@ -892,6 +903,7 @@ void __init setup_arch(char **cmdline_p) sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL); early_paging_init(mdesc, lookup_processor_type(read_cpuid_id())); + setup_dma_zone(mdesc); sanity_check_meminfo(); arm_memblock_init(&meminfo, mdesc); diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index dc894ab3622b..b7b4c86e338b 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -105,8 +105,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) secondary_data.pgdir = get_arch_pgd(idmap_pgd); secondary_data.swapper_pg_dir = get_arch_pgd(swapper_pg_dir); #endif - __cpuc_flush_dcache_area(&secondary_data, sizeof(secondary_data)); - outer_clean_range(__pa(&secondary_data), __pa(&secondary_data + 1)); + sync_cache_w(&secondary_data); /* * Now bring the CPU into our world. @@ -294,6 +293,9 @@ void __ref cpu_die(void) if (smp_ops.cpu_die) smp_ops.cpu_die(cpu); + pr_warn("CPU%u: smp_ops.cpu_die() returned, trying to resuscitate\n", + cpu); + /* * Do not return to the idle loop - jump back to the secondary * cpu initialisation. There's some initialisation which needs diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c index 00f79e59985b..af4e8c8a5422 100644 --- a/arch/arm/kernel/stacktrace.c +++ b/arch/arm/kernel/stacktrace.c @@ -31,7 +31,7 @@ int notrace unwind_frame(struct stackframe *frame) high = ALIGN(low, THREAD_SIZE); /* check current frame pointer is within bounds */ - if (fp < (low + 12) || fp + 4 >= high) + if (fp < low + 12 || fp > high - 4) return -EINVAL; /* restore the registers from the stack frame */ diff --git a/arch/arm/kernel/tcm.c b/arch/arm/kernel/tcm.c index f50f19e5c138..7a3be1d4d0b1 100644 --- a/arch/arm/kernel/tcm.c +++ b/arch/arm/kernel/tcm.c @@ -52,7 +52,7 @@ static struct map_desc dtcm_iomap[] __initdata = { .virtual = DTCM_OFFSET, .pfn = __phys_to_pfn(DTCM_OFFSET), .length = 0, - .type = MT_MEMORY_DTCM + .type = MT_MEMORY_RW_DTCM } }; @@ -61,7 +61,7 @@ static struct map_desc itcm_iomap[] __initdata = { .virtual = ITCM_OFFSET, .pfn = __phys_to_pfn(ITCM_OFFSET), .length = 0, - .type = MT_MEMORY_ITCM + .type = MT_MEMORY_RWX_ITCM, } }; diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 85a87370f144..0bc94b1fd1ae 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -68,16 +68,16 @@ struct cpu_efficiency { * Processors that are not defined in the table, * use the default SCHED_POWER_SCALE value for cpu_scale. */ -struct cpu_efficiency table_efficiency[] = { +static const struct cpu_efficiency table_efficiency[] = { {"arm,cortex-a15", 3891}, {"arm,cortex-a7", 2048}, {NULL, }, }; -unsigned long *__cpu_capacity; +static unsigned long *__cpu_capacity; #define cpu_capacity(cpu) __cpu_capacity[cpu] -unsigned long middle_capacity = 1; +static unsigned long middle_capacity = 1; /* * Iterate all CPUs' descriptor in DT and compute the efficiency @@ -89,7 +89,7 @@ unsigned long middle_capacity = 1; */ static void __init parse_dt_topology(void) { - struct cpu_efficiency *cpu_eff; + const struct cpu_efficiency *cpu_eff; struct device_node *cn = NULL; unsigned long min_capacity = (unsigned long)(-1); unsigned long max_capacity = 0; @@ -158,7 +158,7 @@ static void __init parse_dt_topology(void) * boot. The update of all CPUs is in O(n^2) for heteregeneous system but the * function returns directly for SMP system. */ -void update_cpu_power(unsigned int cpu) +static void update_cpu_power(unsigned int cpu) { if (!cpu_capacity(cpu)) return; @@ -185,7 +185,7 @@ const struct cpumask *cpu_coregroup_mask(int cpu) return &cpu_topology[cpu].core_sibling; } -void update_siblings_masks(unsigned int cpuid) +static void update_siblings_masks(unsigned int cpuid) { struct cputopo_arm *cpu_topo, *cpuid_topo = &cpu_topology[cpuid]; int cpu; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index dbf0923e8d76..172ee18ff124 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -36,7 +36,13 @@ #include <asm/system_misc.h> #include <asm/opcodes.h> -static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" }; +static const char *handler[]= { + "prefetch abort", + "data abort", + "address exception", + "interrupt", + "undefined instruction", +}; void *vectors_page; @@ -56,7 +62,7 @@ static void dump_mem(const char *, const char *, unsigned long, unsigned long); void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame) { #ifdef CONFIG_KALLSYMS - printk("[<%08lx>] (%pS) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from); + printk("[<%08lx>] (%ps) from [<%08lx>] (%pS)\n", where, (void *)where, from, (void *)from); #else printk("Function entered at [<%08lx>] from [<%08lx>]\n", where, from); #endif @@ -425,9 +431,10 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) instr2 = __mem_to_opcode_thumb16(instr2); instr = __opcode_thumb32_compose(instr, instr2); } - } else if (get_user(instr, (u32 __user *)pc)) { + } else { + if (get_user(instr, (u32 __user *)pc)) + goto die_sig; instr = __mem_to_opcode_arm(instr); - goto die_sig; } if (call_undef_hook(regs, instr) == 0) @@ -509,9 +516,10 @@ static inline int __do_cache_op(unsigned long start, unsigned long end) { int ret; - unsigned long chunk = PAGE_SIZE; do { + unsigned long chunk = min(PAGE_SIZE, end - start); + if (signal_pending(current)) { struct thread_info *ti = current_thread_info(); diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index 47d7338561de..0573faab96ad 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -13,7 +13,7 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \ ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \ ucmpdi2.o lib1funcs.o div64.o \ io-readsb.o io-writesb.o io-readsl.o io-writesl.o \ - call_with_stack.o + call_with_stack.o bswapsdi2.o mmu-y := clear_user.o copy_page.o getuser.o putuser.o diff --git a/arch/arm/lib/backtrace.S b/arch/arm/lib/backtrace.S index cd07b5814c23..4102be617fce 100644 --- a/arch/arm/lib/backtrace.S +++ b/arch/arm/lib/backtrace.S @@ -80,14 +80,14 @@ for_each_frame: tst frame, mask @ Check for address exceptions ldr r1, [sv_pc, #-4] @ if stmfd sp!, {args} exists, ldr r3, .Ldsi+4 - teq r3, r1, lsr #10 + teq r3, r1, lsr #11 ldreq r0, [frame, #-8] @ get sp subeq r0, r0, #4 @ point at the last arg bleq .Ldumpstm @ dump saved registers 1004: ldr r1, [sv_pc, #0] @ if stmfd sp!, {..., fp, ip, lr, pc} ldr r3, .Ldsi @ instruction exists, - teq r3, r1, lsr #10 + teq r3, r1, lsr #11 subeq r0, frame, #16 bleq .Ldumpstm @ dump saved registers @@ -128,11 +128,11 @@ ENDPROC(c_backtrace) beq 2f add r7, r7, #1 teq r7, #6 - moveq r7, #1 - moveq r1, #'\n' - movne r1, #' ' - ldr r3, [stack], #-4 - mov r2, reg + moveq r7, #0 + adr r3, .Lcr + addne r3, r3, #1 @ skip newline + ldr r2, [stack], #-4 + mov r1, reg adr r0, .Lfp bl printk 2: subs reg, reg, #1 @@ -142,11 +142,11 @@ ENDPROC(c_backtrace) blne printk ldmfd sp!, {instr, reg, stack, r7, pc} -.Lfp: .asciz "%cr%d:%08x" +.Lfp: .asciz " r%d:%08x%s" .Lcr: .asciz "\n" .Lbad: .asciz "Backtrace aborted due to bad frame pointer <%p>\n" .align -.Ldsi: .word 0xe92dd800 >> 10 @ stmfd sp!, {... fp, ip, lr, pc} - .word 0xe92d0000 >> 10 @ stmfd sp!, {} +.Ldsi: .word 0xe92dd800 >> 11 @ stmfd sp!, {... fp, ip, lr, pc} + .word 0xe92d0000 >> 11 @ stmfd sp!, {} #endif diff --git a/arch/arm/lib/bswapsdi2.S b/arch/arm/lib/bswapsdi2.S new file mode 100644 index 000000000000..9fcdd154eff9 --- /dev/null +++ b/arch/arm/lib/bswapsdi2.S @@ -0,0 +1,36 @@ +#include <linux/linkage.h> + +#if __LINUX_ARM_ARCH__ >= 6 +ENTRY(__bswapsi2) + rev r0, r0 + bx lr +ENDPROC(__bswapsi2) + +ENTRY(__bswapdi2) + rev r3, r0 + rev r0, r1 + mov r1, r3 + bx lr +ENDPROC(__bswapdi2) +#else +ENTRY(__bswapsi2) + eor r3, r0, r0, ror #16 + mov r3, r3, lsr #8 + bic r3, r3, #0xff00 + eor r0, r3, r0, ror #8 + mov pc, lr +ENDPROC(__bswapsi2) + +ENTRY(__bswapdi2) + mov ip, r1 + eor r3, ip, ip, ror #16 + eor r1, r0, r0, ror #16 + mov r1, r1, lsr #8 + mov r3, r3, lsr #8 + bic r3, r3, #0xff00 + bic r1, r1, #0xff00 + eor r1, r1, r0, ror #8 + eor r0, r3, ip, ror #8 + mov pc, lr +ENDPROC(__bswapdi2) +#endif diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 094b3459c288..2742e00ec5d6 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -81,7 +81,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length) desc->pfn = __phys_to_pfn(base); desc->length = length; - desc->type = MT_MEMORY_NONCACHED; + desc->type = MT_MEMORY_RWX_NONCACHED; pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n", base, length, desc->virtual); diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index c46eccbbd512..78829c513fdc 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -487,7 +487,7 @@ int __init da8xx_register_emac(void) static struct resource da830_mcasp1_resources[] = { { - .name = "mcasp1", + .name = "mpu", .start = DAVINCI_DA830_MCASP1_REG_BASE, .end = DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1, .flags = IORESOURCE_MEM, @@ -515,7 +515,7 @@ static struct platform_device da830_mcasp1_device = { static struct resource da850_mcasp_resources[] = { { - .name = "mcasp", + .name = "mpu", .start = DAVINCI_DA8XX_MCASP0_REG_BASE, .end = DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1, .flags = IORESOURCE_MEM, diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index ef9ff1fb6f52..6117fc644188 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -641,6 +641,7 @@ static struct platform_device dm355_edma_device = { static struct resource dm355_asp1_resources[] = { { + .name = "mpu", .start = DAVINCI_ASP1_BASE, .end = DAVINCI_ASP1_BASE + SZ_8K - 1, .flags = IORESOURCE_MEM, @@ -906,7 +907,7 @@ static struct davinci_gpio_platform_data dm355_gpio_platform_data = { int __init dm355_gpio_register(void) { return davinci_gpio_register(dm355_gpio_resources, - sizeof(dm355_gpio_resources), + ARRAY_SIZE(dm355_gpio_resources), &dm355_gpio_platform_data); } /*----------------------------------------------------------------------*/ diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index 1511a0680f9a..d7c6f85d3fc9 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -720,7 +720,7 @@ static struct davinci_gpio_platform_data dm365_gpio_platform_data = { int __init dm365_gpio_register(void) { return davinci_gpio_register(dm365_gpio_resources, - sizeof(dm365_gpio_resources), + ARRAY_SIZE(dm365_gpio_resources), &dm365_gpio_platform_data); } @@ -942,6 +942,7 @@ static struct platform_device dm365_edma_device = { static struct resource dm365_asp_resources[] = { { + .name = "mpu", .start = DAVINCI_DM365_ASP0_BASE, .end = DAVINCI_DM365_ASP0_BASE + SZ_8K - 1, .flags = IORESOURCE_MEM, diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c index 143a3217e8ef..3ce47997bb46 100644 --- a/arch/arm/mach-davinci/dm644x.c +++ b/arch/arm/mach-davinci/dm644x.c @@ -572,6 +572,7 @@ static struct platform_device dm644x_edma_device = { /* DM6446 EVM uses ASP0; line-out is a pair of RCA jacks */ static struct resource dm644x_asp_resources[] = { { + .name = "mpu", .start = DAVINCI_ASP0_BASE, .end = DAVINCI_ASP0_BASE + SZ_8K - 1, .flags = IORESOURCE_MEM, @@ -792,7 +793,7 @@ static struct davinci_gpio_platform_data dm644_gpio_platform_data = { int __init dm644x_gpio_register(void) { return davinci_gpio_register(dm644_gpio_resources, - sizeof(dm644_gpio_resources), + ARRAY_SIZE(dm644_gpio_resources), &dm644_gpio_platform_data); } /*----------------------------------------------------------------------*/ diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c index 2a73f299c1d0..0e81fea65e7f 100644 --- a/arch/arm/mach-davinci/dm646x.c +++ b/arch/arm/mach-davinci/dm646x.c @@ -621,7 +621,7 @@ static struct platform_device dm646x_edma_device = { static struct resource dm646x_mcasp0_resources[] = { { - .name = "mcasp0", + .name = "mpu", .start = DAVINCI_DM646X_MCASP0_REG_BASE, .end = DAVINCI_DM646X_MCASP0_REG_BASE + (SZ_1K << 1) - 1, .flags = IORESOURCE_MEM, @@ -641,7 +641,7 @@ static struct resource dm646x_mcasp0_resources[] = { static struct resource dm646x_mcasp1_resources[] = { { - .name = "mcasp1", + .name = "mpu", .start = DAVINCI_DM646X_MCASP1_REG_BASE, .end = DAVINCI_DM646X_MCASP1_REG_BASE + (SZ_1K << 1) - 1, .flags = IORESOURCE_MEM, @@ -769,7 +769,7 @@ static struct davinci_gpio_platform_data dm646x_gpio_platform_data = { int __init dm646x_gpio_register(void) { return davinci_gpio_register(dm646x_gpio_resources, - sizeof(dm646x_gpio_resources), + ARRAY_SIZE(dm646x_gpio_resources), &dm646x_gpio_platform_data); } /*----------------------------------------------------------------------*/ diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c index e0091685fd48..9e8220e38398 100644 --- a/arch/arm/mach-footbridge/common.c +++ b/arch/arm/mach-footbridge/common.c @@ -143,11 +143,6 @@ static struct map_desc fb_common_io_desc[] __initdata = { .pfn = __phys_to_pfn(DC21285_ARMCSR_BASE), .length = ARMCSR_SIZE, .type = MT_DEVICE, - }, { - .virtual = XBUS_BASE, - .pfn = __phys_to_pfn(0x40000000), - .length = XBUS_SIZE, - .type = MT_DEVICE, } }; diff --git a/arch/arm/mach-footbridge/common.h b/arch/arm/mach-footbridge/common.h index 56607b3a773e..b911e5587ecf 100644 --- a/arch/arm/mach-footbridge/common.h +++ b/arch/arm/mach-footbridge/common.h @@ -10,3 +10,5 @@ extern void footbridge_init_irq(void); extern void isa_init_irq(unsigned int irq); extern void footbridge_restart(enum reboot_mode, const char *); + +extern void footbridge_sched_clock(void); diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c index 9ee78f7b4990..3971104d32d4 100644 --- a/arch/arm/mach-footbridge/dc21285-timer.c +++ b/arch/arm/mach-footbridge/dc21285-timer.c @@ -9,6 +9,7 @@ #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/sched_clock.h> #include <asm/irq.h> @@ -46,6 +47,16 @@ static struct clocksource cksrc_dc21285 = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; +static int ckevt_dc21285_set_next_event(unsigned long delta, + struct clock_event_device *c) +{ + *CSR_TIMER1_CLR = 0; + *CSR_TIMER1_LOAD = delta; + *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_DIV16; + + return 0; +} + static void ckevt_dc21285_set_mode(enum clock_event_mode mode, struct clock_event_device *c) { @@ -58,7 +69,9 @@ static void ckevt_dc21285_set_mode(enum clock_event_mode mode, TIMER_CNTL_DIV16; break; - default: + case CLOCK_EVT_MODE_ONESHOT: + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: *CSR_TIMER1_CNTL = 0; break; } @@ -66,9 +79,11 @@ static void ckevt_dc21285_set_mode(enum clock_event_mode mode, static struct clock_event_device ckevt_dc21285 = { .name = "dc21285_timer1", - .features = CLOCK_EVT_FEAT_PERIODIC, + .features = CLOCK_EVT_FEAT_PERIODIC | + CLOCK_EVT_FEAT_ONESHOT, .rating = 200, .irq = IRQ_TIMER1, + .set_next_event = ckevt_dc21285_set_next_event, .set_mode = ckevt_dc21285_set_mode, }; @@ -78,6 +93,10 @@ static irqreturn_t timer1_interrupt(int irq, void *dev_id) *CSR_TIMER1_CLR = 0; + /* Stop the timer if in one-shot mode */ + if (ce->mode == CLOCK_EVT_MODE_ONESHOT) + *CSR_TIMER1_CNTL = 0; + ce->event_handler(ce); return IRQ_HANDLED; @@ -96,11 +115,28 @@ static struct irqaction footbridge_timer_irq = { void __init footbridge_timer_init(void) { struct clock_event_device *ce = &ckevt_dc21285; + unsigned rate = DIV_ROUND_CLOSEST(mem_fclk_21285, 16); - clocksource_register_hz(&cksrc_dc21285, (mem_fclk_21285 + 8) / 16); + clocksource_register_hz(&cksrc_dc21285, rate); setup_irq(ce->irq, &footbridge_timer_irq); ce->cpumask = cpumask_of(smp_processor_id()); - clockevents_config_and_register(ce, mem_fclk_21285, 0x4, 0xffffff); + clockevents_config_and_register(ce, rate, 0x4, 0xffffff); +} + +static u32 notrace footbridge_read_sched_clock(void) +{ + return ~*CSR_TIMER3_VALUE; +} + +void __init footbridge_sched_clock(void) +{ + unsigned rate = DIV_ROUND_CLOSEST(mem_fclk_21285, 16); + + *CSR_TIMER3_LOAD = 0; + *CSR_TIMER3_CLR = 0; + *CSR_TIMER3_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_DIV16; + + setup_sched_clock(footbridge_read_sched_clock, 24, rate); } diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c index 1a7235fb52ac..aee8300f3490 100644 --- a/arch/arm/mach-footbridge/ebsa285.c +++ b/arch/arm/mach-footbridge/ebsa285.c @@ -4,6 +4,7 @@ * EBSA285 machine fixup */ #include <linux/init.h> +#include <linux/io.h> #include <linux/spinlock.h> #include <linux/slab.h> #include <linux/leds.h> @@ -17,6 +18,11 @@ /* LEDs */ #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS) +#define XBUS_AMBER_L BIT(0) +#define XBUS_GREEN_L BIT(1) +#define XBUS_RED_L BIT(2) +#define XBUS_TOGGLE BIT(7) + struct ebsa285_led { struct led_classdev cdev; u8 mask; @@ -36,6 +42,7 @@ static const struct { }; static unsigned char hw_led_state; +static void __iomem *xbus; static void ebsa285_led_set(struct led_classdev *cdev, enum led_brightness b) @@ -47,7 +54,7 @@ static void ebsa285_led_set(struct led_classdev *cdev, hw_led_state |= led->mask; else hw_led_state &= ~led->mask; - *XBUS_LEDS = hw_led_state; + writeb(hw_led_state, xbus); } static enum led_brightness ebsa285_led_get(struct led_classdev *cdev) @@ -65,9 +72,13 @@ static int __init ebsa285_leds_init(void) if (!machine_is_ebsa285()) return -ENODEV; + xbus = ioremap(XBUS_CS2, SZ_4K); + if (!xbus) + return -ENOMEM; + /* 3 LEDS all off */ - hw_led_state = XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED; - *XBUS_LEDS = hw_led_state; + hw_led_state = XBUS_AMBER_L | XBUS_GREEN_L | XBUS_RED_L; + writeb(hw_led_state, xbus); for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) { struct ebsa285_led *led; @@ -104,6 +115,7 @@ MACHINE_START(EBSA285, "EBSA285") .video_start = 0x000a0000, .video_end = 0x000bffff, .map_io = footbridge_map_io, + .init_early = footbridge_sched_clock, .init_irq = footbridge_init_irq, .init_time = footbridge_timer_init, .restart = footbridge_restart, diff --git a/arch/arm/mach-footbridge/include/mach/hardware.h b/arch/arm/mach-footbridge/include/mach/hardware.h index e3d6ccac2162..02f6d7a706b1 100644 --- a/arch/arm/mach-footbridge/include/mach/hardware.h +++ b/arch/arm/mach-footbridge/include/mach/hardware.h @@ -51,11 +51,7 @@ #define PCIMEM_SIZE 0x01000000 #define PCIMEM_BASE MMU_IO(0xf0000000, 0x80000000) -#define XBUS_LEDS ((volatile unsigned char *)(XBUS_BASE + 0x12000)) -#define XBUS_LED_AMBER (1 << 0) -#define XBUS_LED_GREEN (1 << 1) -#define XBUS_LED_RED (1 << 2) -#define XBUS_LED_TOGGLE (1 << 8) +#define XBUS_CS2 0x40012000 #define XBUS_SWITCH ((volatile unsigned char *)(XBUS_BASE + 0x12000)) #define XBUS_SWITCH_SWITCH ((*XBUS_SWITCH) & 15) diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index b3d7e5634b83..c7de89b263dd 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -17,12 +17,15 @@ #include <linux/clkdev.h> #include <linux/clocksource.h> #include <linux/dma-mapping.h> +#include <linux/input.h> #include <linux/io.h> #include <linux/irqchip.h> +#include <linux/mailbox.h> #include <linux/of.h> #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/of_address.h> +#include <linux/reboot.h> #include <linux/amba/bus.h> #include <linux/platform_device.h> @@ -50,6 +53,7 @@ static void __init highbank_scu_map_io(void) static void highbank_l2x0_disable(void) { + outer_flush_all(); /* Disable PL310 L2 Cache controller */ highbank_smc1(0x102, 0x0); } @@ -130,6 +134,24 @@ static struct platform_device highbank_cpuidle_device = { .name = "cpuidle-calxeda", }; +static int hb_keys_notifier(struct notifier_block *nb, unsigned long event, void *data) +{ + u32 key = *(u32 *)data; + + if (event != 0x1000) + return 0; + + if (key == KEY_POWER) + orderly_poweroff(false); + else if (key == 0xffff) + ctrl_alt_del(); + + return 0; +} +static struct notifier_block hb_keys_nb = { + .notifier_call = hb_keys_notifier, +}; + static void __init highbank_init(void) { struct device_node *np; @@ -145,6 +167,8 @@ static void __init highbank_init(void) bus_register_notifier(&platform_bus_type, &highbank_platform_nb); bus_register_notifier(&amba_bustype, &highbank_amba_nb); + pl320_ipc_register_notifier(&hb_keys_nb); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); if (psci_ops.cpu_suspend) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 7a6e6f710068..fae0578fec7e 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -3,7 +3,6 @@ config ARCH_MXC select ARCH_REQUIRE_GPIOLIB select ARM_CPU_SUSPEND if PM select ARM_PATCH_PHYS_VIRT - select AUTO_ZRELADDR if !ZBOOT_ROM select CLKSRC_MMIO select COMMON_CLK select GENERIC_ALLOCATOR diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 19f1652e94cf..8d972ff18c56 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -131,6 +131,24 @@ DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)") .dt_compat = omap3_gp_boards_compat, .restart = omap3xxx_restart, MACHINE_END + +static const char *am3517_boards_compat[] __initdata = { + "ti,am3517", + NULL, +}; + +DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = omap3_map_io, + .init_early = am35xx_init_early, + .init_irq = omap_intc_of_init, + .handle_irq = omap3_intc_handle_irq, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap3_gptimer_timer_init, + .dt_compat = am3517_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END #endif #ifdef CONFIG_SOC_AM33XX diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index 4ec8d82b0492..44a59c3abfb0 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -242,12 +242,18 @@ static void __init ldp_display_init(void) static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { + int res; + /* LCD enable GPIO */ ldp_lcd_pdata.enable_gpio = gpio + 7; /* Backlight enable GPIO */ ldp_lcd_pdata.backlight_gpio = gpio + 15; + res = platform_device_register(&ldp_lcd_device); + if (res) + pr_err("Unable to register LCD: %d\n", res); + return 0; } @@ -346,7 +352,6 @@ static struct omap2_hsmmc_info mmc[] __initdata = { static struct platform_device *ldp_devices[] __initdata = { &ldp_gpio_keys_device, - &ldp_lcd_device, }; #ifdef CONFIG_OMAP_MUX diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 58347bb874a0..4cf165502b35 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -101,13 +101,51 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = { { "dss_hdmi", "omapdss_hdmi", -1 }, }; +static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes) +{ + u32 enable_mask, enable_shift; + u32 pipd_mask, pipd_shift; + u32 reg; + + if (dsi_id == 0) { + enable_mask = OMAP4_DSI1_LANEENABLE_MASK; + enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT; + pipd_mask = OMAP4_DSI1_PIPD_MASK; + pipd_shift = OMAP4_DSI1_PIPD_SHIFT; + } else if (dsi_id == 1) { + enable_mask = OMAP4_DSI2_LANEENABLE_MASK; + enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT; + pipd_mask = OMAP4_DSI2_PIPD_MASK; + pipd_shift = OMAP4_DSI2_PIPD_SHIFT; + } else { + return -ENODEV; + } + + reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY); + + reg &= ~enable_mask; + reg &= ~pipd_mask; + + reg |= (lanes << enable_shift) & enable_mask; + reg |= (lanes << pipd_shift) & pipd_mask; + + omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY); + + return 0; +} + static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask) { + if (cpu_is_omap44xx()) + return omap4_dsi_mux_pads(dsi_id, lane_mask); + return 0; } static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask) { + if (cpu_is_omap44xx()) + omap4_dsi_mux_pads(dsi_id, 0); } static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput) diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index cd22262a2cc0..07b68d5a7940 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -244,7 +244,7 @@ static struct map_desc omap44xx_io_desc[] __initdata = { .virtual = OMAP4_SRAM_VA, .pfn = __phys_to_pfn(OMAP4_SRAM_PA), .length = PAGE_SIZE, - .type = MT_MEMORY_SO, + .type = MT_MEMORY_RW_SO, }, #endif @@ -282,7 +282,7 @@ static struct map_desc omap54xx_io_desc[] __initdata = { .virtual = OMAP4_SRAM_VA, .pfn = __phys_to_pfn(OMAP4_SRAM_PA), .length = PAGE_SIZE, - .type = MT_MEMORY_SO, + .type = MT_MEMORY_RW_SO, }, #endif }; diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index b39efd46abf9..dd893ec4c8f2 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -87,7 +87,7 @@ void __init omap_barriers_init(void) dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA; dram_io_desc[0].pfn = __phys_to_pfn(paddr); dram_io_desc[0].length = size; - dram_io_desc[0].type = MT_MEMORY_SO; + dram_io_desc[0].type = MT_MEMORY_RW_SO; iotable_init(dram_io_desc, ARRAY_SIZE(dram_io_desc)); dram_sync = (void __iomem *) dram_io_desc[0].virtual; sram_sync = (void __iomem *) OMAP4_SRAM_VA; @@ -162,6 +162,7 @@ void __iomem *omap4_get_l2cache_base(void) static void omap4_l2x0_disable(void) { + outer_flush_all(); /* Disable PL310 L2 Cache controller */ omap_smc1(0x102, 0x0); } diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c index 53f0735817bb..e0a398cf28d8 100644 --- a/arch/arm/mach-omap2/omap_device.c +++ b/arch/arm/mach-omap2/omap_device.c @@ -183,6 +183,10 @@ static int omap_device_build_from_dt(struct platform_device *pdev) odbfd_exit1: kfree(hwmods); odbfd_exit: + /* if data/we are at fault.. load up a fail handler */ + if (ret) + pdev->dev.pm_domain = &omap_device_fail_pm_domain; + return ret; } @@ -604,6 +608,19 @@ static int _od_runtime_resume(struct device *dev) return pm_generic_runtime_resume(dev); } + +static int _od_fail_runtime_suspend(struct device *dev) +{ + dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__); + return -ENODEV; +} + +static int _od_fail_runtime_resume(struct device *dev) +{ + dev_warn(dev, "%s: FIXME: missing hwmod/omap_dev info\n", __func__); + return -ENODEV; +} + #endif #ifdef CONFIG_SUSPEND @@ -657,6 +674,13 @@ static int _od_resume_noirq(struct device *dev) #define _od_resume_noirq NULL #endif +struct dev_pm_domain omap_device_fail_pm_domain = { + .ops = { + SET_RUNTIME_PM_OPS(_od_fail_runtime_suspend, + _od_fail_runtime_resume, NULL) + } +}; + struct dev_pm_domain omap_device_pm_domain = { .ops = { SET_RUNTIME_PM_OPS(_od_runtime_suspend, _od_runtime_resume, diff --git a/arch/arm/mach-omap2/omap_device.h b/arch/arm/mach-omap2/omap_device.h index 17ca1aec2710..78c02b355179 100644 --- a/arch/arm/mach-omap2/omap_device.h +++ b/arch/arm/mach-omap2/omap_device.h @@ -29,6 +29,7 @@ #include "omap_hwmod.h" extern struct dev_pm_domain omap_device_pm_domain; +extern struct dev_pm_domain omap_device_fail_pm_domain; /* omap_device._state values */ #define OMAP_DEVICE_STATE_UNKNOWN 0 diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index e3f0ecaf87dd..8a1b5e0bad40 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -399,7 +399,7 @@ static int _set_clockactivity(struct omap_hwmod *oh, u8 clockact, u32 *v) } /** - * _set_softreset: set OCP_SYSCONFIG.CLOCKACTIVITY bits in @v + * _set_softreset: set OCP_SYSCONFIG.SOFTRESET bit in @v * @oh: struct omap_hwmod * * @v: pointer to register contents to modify * @@ -427,6 +427,36 @@ static int _set_softreset(struct omap_hwmod *oh, u32 *v) } /** + * _clear_softreset: clear OCP_SYSCONFIG.SOFTRESET bit in @v + * @oh: struct omap_hwmod * + * @v: pointer to register contents to modify + * + * Clear the SOFTRESET bit in @v for hwmod @oh. Returns -EINVAL upon + * error or 0 upon success. + */ +static int _clear_softreset(struct omap_hwmod *oh, u32 *v) +{ + u32 softrst_mask; + + if (!oh->class->sysc || + !(oh->class->sysc->sysc_flags & SYSC_HAS_SOFTRESET)) + return -EINVAL; + + if (!oh->class->sysc->sysc_fields) { + WARN(1, + "omap_hwmod: %s: sysc_fields absent for sysconfig class\n", + oh->name); + return -EINVAL; + } + + softrst_mask = (0x1 << oh->class->sysc->sysc_fields->srst_shift); + + *v &= ~softrst_mask; + + return 0; +} + +/** * _wait_softreset_complete - wait for an OCP softreset to complete * @oh: struct omap_hwmod * to wait on * @@ -785,6 +815,7 @@ static int _init_interface_clks(struct omap_hwmod *oh) pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n", oh->name, os->clk); ret = -EINVAL; + continue; } os->_clk = c; /* @@ -821,6 +852,7 @@ static int _init_opt_clks(struct omap_hwmod *oh) pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n", oh->name, oc->clk); ret = -EINVAL; + continue; } oc->_clk = c; /* @@ -1911,6 +1943,12 @@ static int _ocp_softreset(struct omap_hwmod *oh) ret = _set_softreset(oh, &v); if (ret) goto dis_opt_clks; + + _write_sysconfig(v, oh); + ret = _clear_softreset(oh, &v); + if (ret) + goto dis_opt_clks; + _write_sysconfig(v, oh); if (oh->class->sysc->srst_udelay) @@ -2326,38 +2364,80 @@ static int _shutdown(struct omap_hwmod *oh) return 0; } +static int of_dev_find_hwmod(struct device_node *np, + struct omap_hwmod *oh) +{ + int count, i, res; + const char *p; + + count = of_property_count_strings(np, "ti,hwmods"); + if (count < 1) + return -ENODEV; + + for (i = 0; i < count; i++) { + res = of_property_read_string_index(np, "ti,hwmods", + i, &p); + if (res) + continue; + if (!strcmp(p, oh->name)) { + pr_debug("omap_hwmod: dt %s[%i] uses hwmod %s\n", + np->name, i, oh->name); + return i; + } + } + + return -ENODEV; +} + /** * of_dev_hwmod_lookup - look up needed hwmod from dt blob * @np: struct device_node * * @oh: struct omap_hwmod * + * @index: index of the entry found + * @found: struct device_node * found or NULL * * Parse the dt blob and find out needed hwmod. Recursive function is * implemented to take care hierarchical dt blob parsing. - * Return: The device node on success or NULL on failure. + * Return: Returns 0 on success, -ENODEV when not found. */ -static struct device_node *of_dev_hwmod_lookup(struct device_node *np, - struct omap_hwmod *oh) +static int of_dev_hwmod_lookup(struct device_node *np, + struct omap_hwmod *oh, + int *index, + struct device_node **found) { - struct device_node *np0 = NULL, *np1 = NULL; - const char *p; + struct device_node *np0 = NULL; + int res; + + res = of_dev_find_hwmod(np, oh); + if (res >= 0) { + *found = np; + *index = res; + return 0; + } for_each_child_of_node(np, np0) { - if (of_find_property(np0, "ti,hwmods", NULL)) { - p = of_get_property(np0, "ti,hwmods", NULL); - if (!strcmp(p, oh->name)) - return np0; - np1 = of_dev_hwmod_lookup(np0, oh); - if (np1) - return np1; + struct device_node *fc; + int i; + + res = of_dev_hwmod_lookup(np0, oh, &i, &fc); + if (res == 0) { + *found = fc; + *index = i; + return 0; } } - return NULL; + + *found = NULL; + *index = 0; + + return -ENODEV; } /** * _init_mpu_rt_base - populate the virtual address for a hwmod * @oh: struct omap_hwmod * to locate the virtual address * @data: (unused, caller should pass NULL) + * @index: index of the reg entry iospace in device tree * @np: struct device_node * of the IP block's device node in the DT data * * Cache the virtual address used by the MPU to access this IP block's @@ -2368,7 +2448,7 @@ static struct device_node *of_dev_hwmod_lookup(struct device_node *np, * -ENXIO on absent or invalid register target address space. */ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data, - struct device_node *np) + int index, struct device_node *np) { struct omap_hwmod_addr_space *mem; void __iomem *va_start = NULL; @@ -2390,13 +2470,17 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data, if (!np) return -ENXIO; - va_start = of_iomap(np, oh->mpu_rt_idx); + va_start = of_iomap(np, index + oh->mpu_rt_idx); } else { va_start = ioremap(mem->pa_start, mem->pa_end - mem->pa_start); } if (!va_start) { - pr_err("omap_hwmod: %s: Could not ioremap\n", oh->name); + if (mem) + pr_err("omap_hwmod: %s: Could not ioremap\n", oh->name); + else + pr_err("omap_hwmod: %s: Missing dt reg%i for %s\n", + oh->name, index, np->full_name); return -ENXIO; } @@ -2422,17 +2506,29 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data, */ static int __init _init(struct omap_hwmod *oh, void *data) { - int r; + int r, index; struct device_node *np = NULL; if (oh->_state != _HWMOD_STATE_REGISTERED) return 0; - if (of_have_populated_dt()) - np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh); + if (of_have_populated_dt()) { + struct device_node *bus; + + bus = of_find_node_by_name(NULL, "ocp"); + if (!bus) + return -ENODEV; + + r = of_dev_hwmod_lookup(bus, oh, &index, &np); + if (r) + pr_debug("omap_hwmod: %s missing dt data\n", oh->name); + else if (np && index) + pr_warn("omap_hwmod: %s using broken dt data from %s\n", + oh->name, np->name); + } if (oh->class->sysc) { - r = _init_mpu_rt_base(oh, NULL, np); + r = _init_mpu_rt_base(oh, NULL, index, np); if (r < 0) { WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n", oh->name); @@ -3169,6 +3265,11 @@ int omap_hwmod_softreset(struct omap_hwmod *oh) goto error; _write_sysconfig(v, oh); + ret = _clear_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + error: return ret; } diff --git a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c index 56cebb05509e..d23c77fadb31 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_ipblock_data.c @@ -796,7 +796,7 @@ struct omap_hwmod omap2xxx_counter_32k_hwmod = { /* gpmc */ static struct omap_hwmod_irq_info omap2xxx_gpmc_irqs[] = { - { .irq = 20 }, + { .irq = 20 + OMAP_INTC_START, }, { .irq = -1 } }; @@ -841,7 +841,7 @@ static struct omap_hwmod_class omap2_rng_hwmod_class = { }; static struct omap_hwmod_irq_info omap2_rng_mpu_irqs[] = { - { .irq = 52 }, + { .irq = 52 + OMAP_INTC_START, }, { .irq = -1 } }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 9e56fabd7fa3..4c3b1e6df508 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1943,7 +1943,8 @@ static struct omap_hwmod_class_sysconfig omap3xxx_usb_host_hs_sysc = { .syss_offs = 0x0014, .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP | - SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE), + SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE | + SYSS_HAS_RESET_STATUS), .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART), .sysc_fields = &omap_hwmod_sysc_type1, @@ -2021,15 +2022,7 @@ static struct omap_hwmod omap3xxx_usb_host_hs_hwmod = { * hence HWMOD_SWSUP_MSTANDBY */ - /* - * During system boot; If the hwmod framework resets the module - * the module will have smart idle settings; which can lead to deadlock - * (above Errata Id:i660); so, dont reset the module during boot; - * Use HWMOD_INIT_NO_RESET. - */ - - .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY | - HWMOD_INIT_NO_RESET, + .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY, }; /* @@ -2172,7 +2165,7 @@ static struct omap_hwmod_class omap3xxx_gpmc_hwmod_class = { }; static struct omap_hwmod_irq_info omap3xxx_gpmc_irqs[] = { - { .irq = 20 }, + { .irq = 20 + OMAP_INTC_START, }, { .irq = -1 } }; @@ -3006,7 +2999,7 @@ static struct omap_mmu_dev_attr mmu_isp_dev_attr = { static struct omap_hwmod omap3xxx_mmu_isp_hwmod; static struct omap_hwmod_irq_info omap3xxx_mmu_isp_irqs[] = { - { .irq = 24 }, + { .irq = 24 + OMAP_INTC_START, }, { .irq = -1 } }; @@ -3048,7 +3041,7 @@ static struct omap_mmu_dev_attr mmu_iva_dev_attr = { static struct omap_hwmod omap3xxx_mmu_iva_hwmod; static struct omap_hwmod_irq_info omap3xxx_mmu_iva_irqs[] = { - { .irq = 28 }, + { .irq = 28 + OMAP_INTC_START, }, { .irq = -1 } }; diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 1e5b12cb8246..3318cae96e7d 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2937,7 +2937,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_usb_host_hs_sysc = { .sysc_offs = 0x0010, .syss_offs = 0x0014, .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE | - SYSC_HAS_SOFTRESET), + SYSC_HAS_SOFTRESET | SYSC_HAS_RESET_STATUS), .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART | MSTANDBY_SMART_WKUP), @@ -3001,15 +3001,7 @@ static struct omap_hwmod omap44xx_usb_host_hs_hwmod = { * hence HWMOD_SWSUP_MSTANDBY */ - /* - * During system boot; If the hwmod framework resets the module - * the module will have smart idle settings; which can lead to deadlock - * (above Errata Id:i660); so, dont reset the module during boot; - * Use HWMOD_INIT_NO_RESET. - */ - - .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY | - HWMOD_INIT_NO_RESET, + .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY, }; /* diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c index 9e08d6994a0b..e297d6231c3a 100644 --- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c @@ -1544,7 +1544,8 @@ static struct omap_hwmod_class_sysconfig omap54xx_usb_host_hs_sysc = { .rev_offs = 0x0000, .sysc_offs = 0x0010, .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS | - SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET), + SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET | + SYSC_HAS_RESET_STATUS), .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART | MSTANDBY_SMART_WKUP), @@ -1598,15 +1599,7 @@ static struct omap_hwmod omap54xx_usb_host_hs_hwmod = { * hence HWMOD_SWSUP_MSTANDBY */ - /* - * During system boot; If the hwmod framework resets the module - * the module will have smart idle settings; which can lead to deadlock - * (above Errata Id:i660); so, dont reset the module during boot; - * Use HWMOD_INIT_NO_RESET. - */ - - .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY | - HWMOD_INIT_NO_RESET, + .flags = HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY, .main_clk = "l3init_60m_fclk", .prcm = { .omap4 = { diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c index db32d5380b11..18f333c440db 100644 --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c @@ -1637,7 +1637,7 @@ static struct omap_hwmod dra7xx_uart1_hwmod = { .class = &dra7xx_uart_hwmod_class, .clkdm_name = "l4per_clkdm", .main_clk = "uart1_gfclk_mux", - .flags = HWMOD_SWSUP_SIDLE_ACT, + .flags = HWMOD_SWSUP_SIDLE_ACT | DEBUG_OMAP2UART1_FLAGS, .prcm = { .omap4 = { .clkctrl_offs = DRA7XX_CM_L4PER_UART1_CLKCTRL_OFFSET, diff --git a/arch/arm/mach-pxa/include/mach/lubbock.h b/arch/arm/mach-pxa/include/mach/lubbock.h index 2a086e8373eb..958cd6af9384 100644 --- a/arch/arm/mach-pxa/include/mach/lubbock.h +++ b/arch/arm/mach-pxa/include/mach/lubbock.h @@ -10,6 +10,8 @@ * published by the Free Software Foundation. */ +#include <mach/irqs.h> + #define LUBBOCK_ETH_PHYS PXA_CS3_PHYS #define LUBBOCK_FPGA_PHYS PXA_CS2_PHYS diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c index 0d5dd646f61f..263b15249b5b 100644 --- a/arch/arm/mach-pxa/reset.c +++ b/arch/arm/mach-pxa/reset.c @@ -13,6 +13,7 @@ #include <mach/regs-ost.h> #include <mach/reset.h> +#include <mach/smemc.h> unsigned int reset_status; EXPORT_SYMBOL(reset_status); @@ -81,6 +82,12 @@ static void do_hw_reset(void) writel_relaxed(OSSR_M3, OSSR); /* ... in 100 ms */ writel_relaxed(readl_relaxed(OSCR) + 368640, OSMR3); + /* + * SDRAM hangs on watchdog reset on Marvell PXA270 (erratum 71) + * we put SDRAM into self-refresh to prevent that + */ + while (1) + writel_relaxed(MDREFR_SLFRSH, MDREFR); } void pxa_restart(enum reboot_mode mode, const char *cmd) @@ -104,4 +111,3 @@ void pxa_restart(enum reboot_mode mode, const char *cmd) break; } } - diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index 0206b915a6f6..ef5557b807ed 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -425,57 +425,57 @@ static struct platform_device tosa_power_device = { * Tosa Keyboard */ static const uint32_t tosakbd_keymap[] = { - KEY(0, 2, KEY_W), - KEY(0, 6, KEY_K), - KEY(0, 7, KEY_BACKSPACE), - KEY(0, 8, KEY_P), - KEY(1, 1, KEY_Q), - KEY(1, 2, KEY_E), - KEY(1, 3, KEY_T), - KEY(1, 4, KEY_Y), - KEY(1, 6, KEY_O), - KEY(1, 7, KEY_I), - KEY(1, 8, KEY_COMMA), - KEY(2, 1, KEY_A), - KEY(2, 2, KEY_D), - KEY(2, 3, KEY_G), - KEY(2, 4, KEY_U), - KEY(2, 6, KEY_L), - KEY(2, 7, KEY_ENTER), - KEY(2, 8, KEY_DOT), - KEY(3, 1, KEY_Z), - KEY(3, 2, KEY_C), - KEY(3, 3, KEY_V), - KEY(3, 4, KEY_J), - KEY(3, 5, TOSA_KEY_ADDRESSBOOK), - KEY(3, 6, TOSA_KEY_CANCEL), - KEY(3, 7, TOSA_KEY_CENTER), - KEY(3, 8, TOSA_KEY_OK), - KEY(3, 9, KEY_LEFTSHIFT), - KEY(4, 1, KEY_S), - KEY(4, 2, KEY_R), - KEY(4, 3, KEY_B), - KEY(4, 4, KEY_N), - KEY(4, 5, TOSA_KEY_CALENDAR), - KEY(4, 6, TOSA_KEY_HOMEPAGE), - KEY(4, 7, KEY_LEFTCTRL), - KEY(4, 8, TOSA_KEY_LIGHT), - KEY(4, 10, KEY_RIGHTSHIFT), - KEY(5, 1, KEY_TAB), - KEY(5, 2, KEY_SLASH), - KEY(5, 3, KEY_H), - KEY(5, 4, KEY_M), - KEY(5, 5, TOSA_KEY_MENU), - KEY(5, 7, KEY_UP), - KEY(5, 11, TOSA_KEY_FN), - KEY(6, 1, KEY_X), - KEY(6, 2, KEY_F), - KEY(6, 3, KEY_SPACE), - KEY(6, 4, KEY_APOSTROPHE), - KEY(6, 5, TOSA_KEY_MAIL), - KEY(6, 6, KEY_LEFT), - KEY(6, 7, KEY_DOWN), - KEY(6, 8, KEY_RIGHT), + KEY(0, 1, KEY_W), + KEY(0, 5, KEY_K), + KEY(0, 6, KEY_BACKSPACE), + KEY(0, 7, KEY_P), + KEY(1, 0, KEY_Q), + KEY(1, 1, KEY_E), + KEY(1, 2, KEY_T), + KEY(1, 3, KEY_Y), + KEY(1, 5, KEY_O), + KEY(1, 6, KEY_I), + KEY(1, 7, KEY_COMMA), + KEY(2, 0, KEY_A), + KEY(2, 1, KEY_D), + KEY(2, 2, KEY_G), + KEY(2, 3, KEY_U), + KEY(2, 5, KEY_L), + KEY(2, 6, KEY_ENTER), + KEY(2, 7, KEY_DOT), + KEY(3, 0, KEY_Z), + KEY(3, 1, KEY_C), + KEY(3, 2, KEY_V), + KEY(3, 3, KEY_J), + KEY(3, 4, TOSA_KEY_ADDRESSBOOK), + KEY(3, 5, TOSA_KEY_CANCEL), + KEY(3, 6, TOSA_KEY_CENTER), + KEY(3, 7, TOSA_KEY_OK), + KEY(3, 8, KEY_LEFTSHIFT), + KEY(4, 0, KEY_S), + KEY(4, 1, KEY_R), + KEY(4, 2, KEY_B), + KEY(4, 3, KEY_N), + KEY(4, 4, TOSA_KEY_CALENDAR), + KEY(4, 5, TOSA_KEY_HOMEPAGE), + KEY(4, 6, KEY_LEFTCTRL), + KEY(4, 7, TOSA_KEY_LIGHT), + KEY(4, 9, KEY_RIGHTSHIFT), + KEY(5, 0, KEY_TAB), + KEY(5, 1, KEY_SLASH), + KEY(5, 2, KEY_H), + KEY(5, 3, KEY_M), + KEY(5, 4, TOSA_KEY_MENU), + KEY(5, 6, KEY_UP), + KEY(5, 10, TOSA_KEY_FN), + KEY(6, 0, KEY_X), + KEY(6, 1, KEY_F), + KEY(6, 2, KEY_SPACE), + KEY(6, 3, KEY_APOSTROPHE), + KEY(6, 4, TOSA_KEY_MAIL), + KEY(6, 5, KEY_LEFT), + KEY(6, 6, KEY_DOWN), + KEY(6, 7, KEY_RIGHT), }; static struct matrix_keymap_data tosakbd_keymap_data = { diff --git a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c index 7eb9a10fc1af..2fddf38192df 100644 --- a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c +++ b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c @@ -8,8 +8,6 @@ * published by the Free Software Foundation. */ -#include <linux/clk-provider.h> -#include <linux/irqchip.h> #include <linux/of_platform.h> #include <asm/mach/arch.h> @@ -48,15 +46,9 @@ static void __init s3c64xx_dt_map_io(void) panic("SoC is not S3C64xx!"); } -static void __init s3c64xx_dt_init_irq(void) -{ - of_clk_init(NULL); - samsung_wdt_reset_of_init(); - irqchip_init(); -}; - static void __init s3c64xx_dt_init_machine(void) { + samsung_wdt_reset_of_init(); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } @@ -79,7 +71,6 @@ DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)") /* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */ .dt_compat = s3c64xx_dt_compat, .map_io = s3c64xx_dt_map_io, - .init_irq = s3c64xx_dt_init_irq, .init_machine = s3c64xx_dt_init_machine, .restart = s3c64xx_dt_restart, MACHINE_END diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index 958e3cbf0ac2..c18689123023 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -614,6 +614,11 @@ static struct regulator_consumer_supply fixed3v3_power_consumers[] = { REGULATOR_SUPPLY("vqmmc", "sh_mmcif"), }; +/* Fixed 3.3V regulator used by LCD backlight */ +static struct regulator_consumer_supply fixed5v0_power_consumers[] = { + REGULATOR_SUPPLY("power", "pwm-backlight.0"), +}; + /* Fixed 3.3V regulator to be used by SDHI0 */ static struct regulator_consumer_supply vcc_sdhi0_consumers[] = { REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"), @@ -1196,6 +1201,8 @@ static void __init eva_init(void) regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers, ARRAY_SIZE(fixed3v3_power_consumers), 3300000); + regulator_register_always_on(3, "fixed-5.0V", fixed5v0_power_consumers, + ARRAY_SIZE(fixed5v0_power_consumers), 5000000); pinctrl_register_mappings(eva_pinctrl_map, ARRAY_SIZE(eva_pinctrl_map)); pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup)); diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c index 38611526fe9a..3c4995aebd22 100644 --- a/arch/arm/mach-shmobile/board-bockw.c +++ b/arch/arm/mach-shmobile/board-bockw.c @@ -679,7 +679,7 @@ static void __init bockw_init(void) .id = i, .data = &rsnd_card_info[i], .size_data = sizeof(struct asoc_simple_card_info), - .dma_mask = ~0, + .dma_mask = DMA_BIT_MASK(32), }; platform_device_register_full(&cardinfo); diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c index a8d3ce646fb9..e0406fd37390 100644 --- a/arch/arm/mach-shmobile/board-lager.c +++ b/arch/arm/mach-shmobile/board-lager.c @@ -245,7 +245,9 @@ static void __init lager_init(void) { lager_add_standard_devices(); - phy_register_fixup_for_id("r8a7790-ether-ff:01", lager_ksz8041_fixup); + if (IS_ENABLED(CONFIG_PHYLIB)) + phy_register_fixup_for_id("r8a7790-ether-ff:01", + lager_ksz8041_fixup); } static const char * const lager_boards_compat_dt[] __initconst = { diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c index 9a4e910c3796..3a9c1f1c219d 100644 --- a/arch/arm/mach-tegra/fuse.c +++ b/arch/arm/mach-tegra/fuse.c @@ -198,10 +198,12 @@ void __init tegra_init_fuse(void) switch (tegra_chip_id) { case TEGRA20: tegra20_fuse_init_randomness(); + break; case TEGRA30: case TEGRA114: default: tegra30_fuse_init_randomness(); + break; } pr_info("Tegra Revision: %s SKU: %d CPU Process: %d Core Process: %d\n", diff --git a/arch/arm/mach-ux500/setup.h b/arch/arm/mach-ux500/setup.h index bdb356498a74..b1dd8584bed4 100644 --- a/arch/arm/mach-ux500/setup.h +++ b/arch/arm/mach-ux500/setup.h @@ -43,7 +43,7 @@ extern void ux500_timer_init(void); .virtual = IO_ADDRESS(x), \ .pfn = __phys_to_pfn(x), \ .length = sz, \ - .type = MT_MEMORY, \ + .type = MT_MEMORY_RWX, \ } extern struct smp_operations ux500_smp_ops; diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile index ecfe6e53f6e0..7f39ce2f841f 100644 --- a/arch/arm/mm/Makefile +++ b/arch/arm/mm/Makefile @@ -12,6 +12,7 @@ ifneq ($(CONFIG_MMU),y) obj-y += nommu.o endif +obj-$(CONFIG_ARM_PTDUMP) += dump.o obj-$(CONFIG_MODULES) += proc-syms.o obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 447da6ffadd5..7abde2ce8973 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -25,6 +25,7 @@ #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> +#include "cache-tauros3.h" #include "cache-aurora-l2.h" #define CACHE_LINE_SIZE 32 @@ -767,6 +768,14 @@ static void aurora_save(void) l2x0_saved_regs.aux_ctrl = readl_relaxed(l2x0_base + L2X0_AUX_CTRL); } +static void __init tauros3_save(void) +{ + l2x0_saved_regs.aux2_ctrl = + readl_relaxed(l2x0_base + TAUROS3_AUX2_CTRL); + l2x0_saved_regs.prefetch_ctrl = + readl_relaxed(l2x0_base + L2X0_PREFETCH_CTRL); +} + static void l2x0_resume(void) { if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { @@ -821,6 +830,18 @@ static void aurora_resume(void) } } +static void tauros3_resume(void) +{ + if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { + writel_relaxed(l2x0_saved_regs.aux2_ctrl, + l2x0_base + TAUROS3_AUX2_CTRL); + writel_relaxed(l2x0_saved_regs.prefetch_ctrl, + l2x0_base + L2X0_PREFETCH_CTRL); + } + + l2x0_resume(); +} + static void __init aurora_broadcast_l2_commands(void) { __u32 u; @@ -906,6 +927,15 @@ static const struct l2x0_of_data aurora_no_outer_data = { }, }; +static const struct l2x0_of_data tauros3_data = { + .setup = NULL, + .save = tauros3_save, + /* Tauros3 broadcasts L1 cache operations to L2 */ + .outer_cache = { + .resume = tauros3_resume, + }, +}; + static const struct l2x0_of_data bcm_l2x0_data = { .setup = pl310_of_setup, .save = pl310_save, @@ -922,17 +952,19 @@ static const struct l2x0_of_data bcm_l2x0_data = { }; static const struct of_device_id l2x0_ids[] __initconst = { - { .compatible = "arm,pl310-cache", .data = (void *)&pl310_data }, - { .compatible = "arm,l220-cache", .data = (void *)&l2x0_data }, { .compatible = "arm,l210-cache", .data = (void *)&l2x0_data }, - { .compatible = "marvell,aurora-system-cache", - .data = (void *)&aurora_no_outer_data}, - { .compatible = "marvell,aurora-outer-cache", - .data = (void *)&aurora_with_outer_data}, - { .compatible = "brcm,bcm11351-a2-pl310-cache", - .data = (void *)&bcm_l2x0_data}, + { .compatible = "arm,l220-cache", .data = (void *)&l2x0_data }, + { .compatible = "arm,pl310-cache", .data = (void *)&pl310_data }, { .compatible = "bcm,bcm11351-a2-pl310-cache", /* deprecated name */ .data = (void *)&bcm_l2x0_data}, + { .compatible = "brcm,bcm11351-a2-pl310-cache", + .data = (void *)&bcm_l2x0_data}, + { .compatible = "marvell,aurora-outer-cache", + .data = (void *)&aurora_with_outer_data}, + { .compatible = "marvell,aurora-system-cache", + .data = (void *)&aurora_no_outer_data}, + { .compatible = "marvell,tauros3-cache", + .data = (void *)&tauros3_data }, {} }; diff --git a/arch/arm/mm/cache-tauros3.h b/arch/arm/mm/cache-tauros3.h new file mode 100644 index 000000000000..02c0a97cbc02 --- /dev/null +++ b/arch/arm/mm/cache-tauros3.h @@ -0,0 +1,41 @@ +/* + * Marvell Tauros3 cache controller includes + * + * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> + * + * based on GPL'ed 2.6 kernel sources + * (c) Marvell International Ltd. + * + * 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. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __ASM_ARM_HARDWARE_TAUROS3_H +#define __ASM_ARM_HARDWARE_TAUROS3_H + +/* + * Marvell Tauros3 L2CC is compatible with PL310 r0p0 + * but with PREFETCH_CTRL (r2p0) and an additional event counter. + * Also, there is AUX2_CTRL for some Marvell specific control. + */ + +#define TAUROS3_EVENT_CNT2_CFG 0x224 +#define TAUROS3_EVENT_CNT2_VAL 0x228 +#define TAUROS3_INV_ALL 0x780 +#define TAUROS3_CLEAN_ALL 0x784 +#define TAUROS3_AUX2_CTRL 0x820 + +/* Registers shifts and masks */ +#define TAUROS3_AUX2_CTRL_LINEFILL_BURST8_EN (1 << 2) + +#endif diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S index b5c467a65c27..778bcf88ee79 100644 --- a/arch/arm/mm/cache-v7.S +++ b/arch/arm/mm/cache-v7.S @@ -146,18 +146,18 @@ flush_levels: ldr r7, =0x7fff ands r7, r7, r1, lsr #13 @ extract max number of the index size loop1: - mov r9, r4 @ create working copy of max way size + mov r9, r7 @ create working copy of max index loop2: - ARM( orr r11, r10, r9, lsl r5 ) @ factor way and cache number into r11 - THUMB( lsl r6, r9, r5 ) + ARM( orr r11, r10, r4, lsl r5 ) @ factor way and cache number into r11 + THUMB( lsl r6, r4, r5 ) THUMB( orr r11, r10, r6 ) @ factor way and cache number into r11 - ARM( orr r11, r11, r7, lsl r2 ) @ factor index number into r11 - THUMB( lsl r6, r7, r2 ) + ARM( orr r11, r11, r9, lsl r2 ) @ factor index number into r11 + THUMB( lsl r6, r9, r2 ) THUMB( orr r11, r11, r6 ) @ factor index number into r11 mcr p15, 0, r11, c7, c14, 2 @ clean & invalidate by set/way - subs r9, r9, #1 @ decrement the way + subs r9, r9, #1 @ decrement the index bge loop2 - subs r7, r7, #1 @ decrement the index + subs r4, r4, #1 @ decrement the way bge loop1 skip: add r10, r10, #2 @ increment cache number diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 84e6f772e204..6eb97b3a7481 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -36,8 +36,8 @@ * The context ID is used by debuggers and trace logic, and * should be unique within all running processes. * - * In big endian operation, the two 32 bit words are swapped if accesed by - * non 64-bit operations. + * In big endian operation, the two 32 bit words are swapped if accessed + * by non-64-bit operations. */ #define ASID_FIRST_VERSION (1ULL << ASID_BITS) #define NUM_USER_ASIDS ASID_FIRST_VERSION @@ -78,20 +78,21 @@ void a15_erratum_get_cpumask(int this_cpu, struct mm_struct *mm, #endif #ifdef CONFIG_ARM_LPAE -static void cpu_set_reserved_ttbr0(void) -{ - /* - * Set TTBR0 to swapper_pg_dir which contains only global entries. The - * ASID is set to 0. - */ - cpu_set_ttbr(0, __pa(swapper_pg_dir)); - isb(); -} +/* + * With LPAE, the ASID and page tables are updated atomicly, so there is + * no need for a reserved set of tables (the active ASID tracking prevents + * any issues across a rollover). + */ +#define cpu_set_reserved_ttbr0() #else static void cpu_set_reserved_ttbr0(void) { u32 ttb; - /* Copy TTBR1 into TTBR0 */ + /* + * Copy TTBR1 into TTBR0. + * This points at swapper_pg_dir, which contains only global + * entries so any speculative walks are perfectly safe. + */ asm volatile( " mrc p15, 0, %0, c2, c0, 1 @ read TTBR1\n" " mcr p15, 0, %0, c2, c0, 0 @ set TTBR0\n" @@ -179,6 +180,7 @@ static int is_reserved_asid(u64 asid) static u64 new_context(struct mm_struct *mm, unsigned int cpu) { + static u32 cur_idx = 1; u64 asid = atomic64_read(&mm->context.id); u64 generation = atomic64_read(&asid_generation); @@ -193,10 +195,13 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu) * Allocate a free ASID. If we can't find one, take a * note of the currently active ASIDs and mark the TLBs * as requiring flushes. We always count from ASID #1, - * as we reserve ASID #0 to switch via TTBR0 and indicate - * rollover events. + * as we reserve ASID #0 to switch via TTBR0 and to + * avoid speculative page table walks from hitting in + * any partial walk caches, which could be populated + * from overlapping level-1 descriptors used to map both + * the module area and the userspace stack. */ - asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1); + asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx); if (asid == NUM_USER_ASIDS) { generation = atomic64_add_return(ASID_FIRST_VERSION, &asid_generation); @@ -204,6 +209,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu) asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1); } __set_bit(asid, asid_map); + cur_idx = asid; asid |= generation; cpumask_clear(mm_cpumask(mm)); } @@ -221,8 +227,9 @@ void check_and_switch_context(struct mm_struct *mm, struct task_struct *tsk) __check_vmalloc_seq(mm); /* - * Required during context switch to avoid speculative page table - * walking with the wrong TTBR. + * We cannot update the pgd and the ASID atomicly with classic + * MMU, so switch exclusively to global mappings to avoid + * speculative page table walking with the wrong TTBR. */ cpu_set_reserved_ttbr0(); diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index f6b6bfa88ecf..1a77450e728a 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -158,13 +158,49 @@ struct dma_map_ops arm_coherent_dma_ops = { }; EXPORT_SYMBOL(arm_coherent_dma_ops); +static int __dma_supported(struct device *dev, u64 mask, bool warn) +{ + unsigned long max_dma_pfn; + + /* + * If the mask allows for more memory than we can address, + * and we actually have that much memory, then we must + * indicate that DMA to this device is not supported. + */ + if (sizeof(mask) != sizeof(dma_addr_t) && + mask > (dma_addr_t)~0 && + dma_to_pfn(dev, ~0) < max_pfn) { + if (warn) { + dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n", + mask); + dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n"); + } + return 0; + } + + max_dma_pfn = min(max_pfn, arm_dma_pfn_limit); + + /* + * Translate the device's DMA mask to a PFN limit. This + * PFN number includes the page which we can DMA to. + */ + if (dma_to_pfn(dev, mask) < max_dma_pfn) { + if (warn) + dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n", + mask, + dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1, + max_dma_pfn + 1); + return 0; + } + + return 1; +} + static u64 get_coherent_dma_mask(struct device *dev) { u64 mask = (u64)DMA_BIT_MASK(32); if (dev) { - unsigned long max_dma_pfn; - mask = dev->coherent_dma_mask; /* @@ -176,34 +212,8 @@ static u64 get_coherent_dma_mask(struct device *dev) return 0; } - max_dma_pfn = min(max_pfn, arm_dma_pfn_limit); - - /* - * If the mask allows for more memory than we can address, - * and we actually have that much memory, then fail the - * allocation. - */ - if (sizeof(mask) != sizeof(dma_addr_t) && - mask > (dma_addr_t)~0 && - dma_to_pfn(dev, ~0) > max_dma_pfn) { - dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n", - mask); - dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n"); - return 0; - } - - /* - * Now check that the mask, when translated to a PFN, - * fits within the allowable addresses which we can - * allocate. - */ - if (dma_to_pfn(dev, mask) < max_dma_pfn) { - dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n", - mask, - dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1, - arm_dma_pfn_limit + 1); + if (!__dma_supported(dev, mask, true)) return 0; - } } return mask; @@ -366,7 +376,7 @@ void __init init_dma_coherent_pool_size(unsigned long size) static int __init atomic_pool_init(void) { struct dma_pool *pool = &atomic_pool; - pgprot_t prot = pgprot_dmacoherent(pgprot_kernel); + pgprot_t prot = pgprot_dmacoherent(PAGE_KERNEL); gfp_t gfp = GFP_KERNEL | GFP_DMA; unsigned long nr_pages = pool->size >> PAGE_SHIFT; unsigned long *bitmap; @@ -614,7 +624,7 @@ static void __free_from_contiguous(struct device *dev, struct page *page, if (PageHighMem(page)) __dma_free_remap(cpu_addr, size); else - __dma_remap(page, size, pgprot_kernel); + __dma_remap(page, size, PAGE_KERNEL); dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT); } @@ -1032,28 +1042,7 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, */ int dma_supported(struct device *dev, u64 mask) { - unsigned long limit; - - /* - * If the mask allows for more memory than we can address, - * and we actually have that much memory, then we must - * indicate that DMA to this device is not supported. - */ - if (sizeof(mask) != sizeof(dma_addr_t) && - mask > (dma_addr_t)~0 && - dma_to_pfn(dev, ~0) > arm_dma_pfn_limit) - return 0; - - /* - * Translate the device's DMA mask to a PFN limit. This - * PFN number includes the page which we can DMA to. - */ - limit = dma_to_pfn(dev, mask); - - if (limit < arm_dma_pfn_limit) - return 0; - - return 1; + return __dma_supported(dev, mask, false); } EXPORT_SYMBOL(dma_supported); @@ -1362,7 +1351,7 @@ static void __iommu_free_atomic(struct device *dev, void *cpu_addr, static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs) { - pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel); + pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL); struct page **pages; void *addr = NULL; diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c new file mode 100644 index 000000000000..2b3a56414271 --- /dev/null +++ b/arch/arm/mm/dump.c @@ -0,0 +1,345 @@ +/* + * Debug helper to dump the current kernel pagetables of the system + * so that we can see what the various memory ranges are set to. + * + * Derived from x86 implementation: + * (C) Copyright 2008 Intel Corporation + * + * Author: Arjan van de Ven <arjan@linux.intel.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ +#include <linux/debugfs.h> +#include <linux/fs.h> +#include <linux/mm.h> +#include <linux/seq_file.h> + +#include <asm/fixmap.h> +#include <asm/pgtable.h> + +struct addr_marker { + unsigned long start_address; + const char *name; +}; + +static struct addr_marker address_markers[] = { + { MODULES_VADDR, "Modules" }, + { PAGE_OFFSET, "Kernel Mapping" }, + { 0, "vmalloc() Area" }, + { VMALLOC_END, "vmalloc() End" }, + { FIXADDR_START, "Fixmap Area" }, + { CONFIG_VECTORS_BASE, "Vectors" }, + { CONFIG_VECTORS_BASE + PAGE_SIZE * 2, "Vectors End" }, + { -1, NULL }, +}; + +struct pg_state { + struct seq_file *seq; + const struct addr_marker *marker; + unsigned long start_address; + unsigned level; + u64 current_prot; +}; + +struct prot_bits { + u64 mask; + u64 val; + const char *set; + const char *clear; +}; + +static const struct prot_bits pte_bits[] = { + { + .mask = L_PTE_USER, + .val = L_PTE_USER, + .set = "USR", + .clear = " ", + }, { + .mask = L_PTE_RDONLY, + .val = L_PTE_RDONLY, + .set = "ro", + .clear = "RW", + }, { + .mask = L_PTE_XN, + .val = L_PTE_XN, + .set = "NX", + .clear = "x ", + }, { + .mask = L_PTE_SHARED, + .val = L_PTE_SHARED, + .set = "SHD", + .clear = " ", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_UNCACHED, + .set = "SO/UNCACHED", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_BUFFERABLE, + .set = "MEM/BUFFERABLE/WC", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_WRITETHROUGH, + .set = "MEM/CACHED/WT", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_WRITEBACK, + .set = "MEM/CACHED/WBRA", +#ifndef CONFIG_ARM_LPAE + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_MINICACHE, + .set = "MEM/MINICACHE", +#endif + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_WRITEALLOC, + .set = "MEM/CACHED/WBWA", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_DEV_SHARED, + .set = "DEV/SHARED", +#ifndef CONFIG_ARM_LPAE + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_DEV_NONSHARED, + .set = "DEV/NONSHARED", +#endif + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_DEV_WC, + .set = "DEV/WC", + }, { + .mask = L_PTE_MT_MASK, + .val = L_PTE_MT_DEV_CACHED, + .set = "DEV/CACHED", + }, +}; + +static const struct prot_bits section_bits[] = { +#ifndef CONFIG_ARM_LPAE + /* These are approximate */ + { + .mask = PMD_SECT_AP_READ | PMD_SECT_AP_WRITE, + .val = 0, + .set = " ro", + }, { + .mask = PMD_SECT_AP_READ | PMD_SECT_AP_WRITE, + .val = PMD_SECT_AP_WRITE, + .set = " RW", + }, { + .mask = PMD_SECT_AP_READ | PMD_SECT_AP_WRITE, + .val = PMD_SECT_AP_READ, + .set = "USR ro", + }, { + .mask = PMD_SECT_AP_READ | PMD_SECT_AP_WRITE, + .val = PMD_SECT_AP_READ | PMD_SECT_AP_WRITE, + .set = "USR RW", +#else + { + .mask = PMD_SECT_USER, + .val = PMD_SECT_USER, + .set = "USR", + }, { + .mask = PMD_SECT_RDONLY, + .val = PMD_SECT_RDONLY, + .set = "ro", + .clear = "RW", +#endif + }, { + .mask = PMD_SECT_XN, + .val = PMD_SECT_XN, + .set = "NX", + .clear = "x ", + }, { + .mask = PMD_SECT_S, + .val = PMD_SECT_S, + .set = "SHD", + .clear = " ", + }, +}; + +struct pg_level { + const struct prot_bits *bits; + size_t num; + u64 mask; +}; + +static struct pg_level pg_level[] = { + { + }, { /* pgd */ + }, { /* pud */ + }, { /* pmd */ + .bits = section_bits, + .num = ARRAY_SIZE(section_bits), + }, { /* pte */ + .bits = pte_bits, + .num = ARRAY_SIZE(pte_bits), + }, +}; + +static void dump_prot(struct pg_state *st, const struct prot_bits *bits, size_t num) +{ + unsigned i; + + for (i = 0; i < num; i++, bits++) { + const char *s; + + if ((st->current_prot & bits->mask) == bits->val) + s = bits->set; + else + s = bits->clear; + + if (s) + seq_printf(st->seq, " %s", s); + } +} + +static void note_page(struct pg_state *st, unsigned long addr, unsigned level, u64 val) +{ + static const char units[] = "KMGTPE"; + u64 prot = val & pg_level[level].mask; + + if (addr < USER_PGTABLES_CEILING) + return; + + if (!st->level) { + st->level = level; + st->current_prot = prot; + seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); + } else if (prot != st->current_prot || level != st->level || + addr >= st->marker[1].start_address) { + const char *unit = units; + unsigned long delta; + + if (st->current_prot) { + seq_printf(st->seq, "0x%08lx-0x%08lx ", + st->start_address, addr); + + delta = (addr - st->start_address) >> 10; + while (!(delta & 1023) && unit[1]) { + delta >>= 10; + unit++; + } + seq_printf(st->seq, "%9lu%c", delta, *unit); + if (pg_level[st->level].bits) + dump_prot(st, pg_level[st->level].bits, pg_level[st->level].num); + seq_printf(st->seq, "\n"); + } + + if (addr >= st->marker[1].start_address) { + st->marker++; + seq_printf(st->seq, "---[ %s ]---\n", st->marker->name); + } + st->start_address = addr; + st->current_prot = prot; + st->level = level; + } +} + +static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start) +{ + pte_t *pte = pte_offset_kernel(pmd, 0); + unsigned long addr; + unsigned i; + + for (i = 0; i < PTRS_PER_PTE; i++, pte++) { + addr = start + i * PAGE_SIZE; + note_page(st, addr, 4, pte_val(*pte)); + } +} + +static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) +{ + pmd_t *pmd = pmd_offset(pud, 0); + unsigned long addr; + unsigned i; + + for (i = 0; i < PTRS_PER_PMD; i++, pmd++) { + addr = start + i * PMD_SIZE; + if (pmd_none(*pmd) || pmd_large(*pmd) || !pmd_present(*pmd)) + note_page(st, addr, 3, pmd_val(*pmd)); + else + walk_pte(st, pmd, addr); + } +} + +static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) +{ + pud_t *pud = pud_offset(pgd, 0); + unsigned long addr; + unsigned i; + + for (i = 0; i < PTRS_PER_PUD; i++, pud++) { + addr = start + i * PUD_SIZE; + if (!pud_none(*pud)) { + walk_pmd(st, pud, addr); + } else { + note_page(st, addr, 2, pud_val(*pud)); + } + } +} + +static void walk_pgd(struct seq_file *m) +{ + pgd_t *pgd = swapper_pg_dir; + struct pg_state st; + unsigned long addr; + unsigned i, pgdoff = USER_PGTABLES_CEILING / PGDIR_SIZE; + + memset(&st, 0, sizeof(st)); + st.seq = m; + st.marker = address_markers; + + pgd += pgdoff; + + for (i = pgdoff; i < PTRS_PER_PGD; i++, pgd++) { + addr = i * PGDIR_SIZE; + if (!pgd_none(*pgd)) { + walk_pud(&st, pgd, addr); + } else { + note_page(&st, addr, 1, pgd_val(*pgd)); + } + } + + note_page(&st, 0, 0, 0); +} + +static int ptdump_show(struct seq_file *m, void *v) +{ + walk_pgd(m); + return 0; +} + +static int ptdump_open(struct inode *inode, struct file *file) +{ + return single_open(file, ptdump_show, NULL); +} + +static const struct file_operations ptdump_fops = { + .open = ptdump_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int ptdump_init(void) +{ + struct dentry *pe; + unsigned i, j; + + for (i = 0; i < ARRAY_SIZE(pg_level); i++) + if (pg_level[i].bits) + for (j = 0; j < pg_level[i].num; j++) + pg_level[i].mask |= pg_level[i].bits[j].mask; + + address_markers[2].start_address = VMALLOC_START; + + pe = debugfs_create_file("kernel_page_tables", 0400, NULL, NULL, + &ptdump_fops); + return pe ? 0 : -ENOMEM; +} +__initcall(ptdump_init); diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 6d5ba9afb16a..3387e60e4ea3 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -175,16 +175,16 @@ void __flush_dcache_page(struct address_space *mapping, struct page *page) unsigned long i; if (cache_is_vipt_nonaliasing()) { for (i = 0; i < (1 << compound_order(page)); i++) { - void *addr = kmap_atomic(page); + void *addr = kmap_atomic(page + i); __cpuc_flush_dcache_area(addr, PAGE_SIZE); kunmap_atomic(addr); } } else { for (i = 0; i < (1 << compound_order(page)); i++) { - void *addr = kmap_high_get(page); + void *addr = kmap_high_get(page + i); if (addr) { __cpuc_flush_dcache_area(addr, PAGE_SIZE); - kunmap_high(page); + kunmap_high(page + i); } } } diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index f123d6eb074b..f9c32ba73544 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -392,9 +392,9 @@ __arm_ioremap_exec(phys_addr_t phys_addr, size_t size, bool cached) unsigned int mtype; if (cached) - mtype = MT_MEMORY; + mtype = MT_MEMORY_RWX; else - mtype = MT_MEMORY_NONCACHED; + mtype = MT_MEMORY_RWX_NONCACHED; return __arm_ioremap_caller(phys_addr, size, mtype, __builtin_return_address(0)); diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 580ef2de82d7..4f08c133cc25 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -22,6 +22,7 @@ #include <asm/cputype.h> #include <asm/sections.h> #include <asm/cachetype.h> +#include <asm/sections.h> #include <asm/setup.h> #include <asm/smp_plat.h> #include <asm/tlb.h> @@ -287,36 +288,43 @@ static struct mem_type mem_types[] = { .prot_l1 = PMD_TYPE_TABLE, .domain = DOMAIN_USER, }, - [MT_MEMORY] = { + [MT_MEMORY_RWX] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY, .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, .domain = DOMAIN_KERNEL, }, + [MT_MEMORY_RW] = { + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | + L_PTE_XN, + .prot_l1 = PMD_TYPE_TABLE, + .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, + .domain = DOMAIN_KERNEL, + }, [MT_ROM] = { .prot_sect = PMD_TYPE_SECT, .domain = DOMAIN_KERNEL, }, - [MT_MEMORY_NONCACHED] = { + [MT_MEMORY_RWX_NONCACHED] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_MT_BUFFERABLE, .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE, .domain = DOMAIN_KERNEL, }, - [MT_MEMORY_DTCM] = { + [MT_MEMORY_RW_DTCM] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_XN, .prot_l1 = PMD_TYPE_TABLE, .prot_sect = PMD_TYPE_SECT | PMD_SECT_XN, .domain = DOMAIN_KERNEL, }, - [MT_MEMORY_ITCM] = { + [MT_MEMORY_RWX_ITCM] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY, .prot_l1 = PMD_TYPE_TABLE, .domain = DOMAIN_KERNEL, }, - [MT_MEMORY_SO] = { + [MT_MEMORY_RW_SO] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_MT_UNCACHED | L_PTE_XN, .prot_l1 = PMD_TYPE_TABLE, @@ -325,7 +333,8 @@ static struct mem_type mem_types[] = { .domain = DOMAIN_KERNEL, }, [MT_MEMORY_DMA_READY] = { - .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY, + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | + L_PTE_XN, .prot_l1 = PMD_TYPE_TABLE, .domain = DOMAIN_KERNEL, }, @@ -337,6 +346,44 @@ const struct mem_type *get_mem_type(unsigned int type) } EXPORT_SYMBOL(get_mem_type); +#define PTE_SET_FN(_name, pteop) \ +static int pte_set_##_name(pte_t *ptep, pgtable_t token, unsigned long addr, \ + void *data) \ +{ \ + pte_t pte = pteop(*ptep); \ +\ + set_pte_ext(ptep, pte, 0); \ + return 0; \ +} \ + +#define SET_MEMORY_FN(_name, callback) \ +int set_memory_##_name(unsigned long addr, int numpages) \ +{ \ + unsigned long start = addr; \ + unsigned long size = PAGE_SIZE*numpages; \ + unsigned end = start + size; \ +\ + if (start < MODULES_VADDR || start >= MODULES_END) \ + return -EINVAL;\ +\ + if (end < MODULES_VADDR || end >= MODULES_END) \ + return -EINVAL; \ +\ + apply_to_page_range(&init_mm, start, size, callback, NULL); \ + flush_tlb_kernel_range(start, end); \ + return 0;\ +} + +PTE_SET_FN(ro, pte_wrprotect) +PTE_SET_FN(rw, pte_mkwrite) +PTE_SET_FN(x, pte_mkexec) +PTE_SET_FN(nx, pte_mknexec) + +SET_MEMORY_FN(ro, pte_set_ro) +SET_MEMORY_FN(rw, pte_set_rw) +SET_MEMORY_FN(x, pte_set_x) +SET_MEMORY_FN(nx, pte_set_nx) + /* * Adjust the PMD section entries according to the CPU in use. */ @@ -410,6 +457,9 @@ static void __init build_mem_type_table(void) mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_XN; mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_XN; mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_XN; + + /* Also setup NX memory mapping */ + mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_XN; } if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) { /* @@ -487,11 +537,13 @@ static void __init build_mem_type_table(void) mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED; mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S; mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED; - mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S; - mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED; + mem_types[MT_MEMORY_RWX].prot_sect |= PMD_SECT_S; + mem_types[MT_MEMORY_RWX].prot_pte |= L_PTE_SHARED; + mem_types[MT_MEMORY_RW].prot_sect |= PMD_SECT_S; + mem_types[MT_MEMORY_RW].prot_pte |= L_PTE_SHARED; mem_types[MT_MEMORY_DMA_READY].prot_pte |= L_PTE_SHARED; - mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S; - mem_types[MT_MEMORY_NONCACHED].prot_pte |= L_PTE_SHARED; + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_S; + mem_types[MT_MEMORY_RWX_NONCACHED].prot_pte |= L_PTE_SHARED; } } @@ -502,15 +554,15 @@ static void __init build_mem_type_table(void) if (cpu_arch >= CPU_ARCH_ARMv6) { if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) { /* Non-cacheable Normal is XCB = 001 */ - mem_types[MT_MEMORY_NONCACHED].prot_sect |= + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERED; } else { /* For both ARMv6 and non-TEX-remapping ARMv7 */ - mem_types[MT_MEMORY_NONCACHED].prot_sect |= + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_TEX(1); } } else { - mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE; + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= PMD_SECT_BUFFERABLE; } #ifdef CONFIG_ARM_LPAE @@ -543,10 +595,12 @@ static void __init build_mem_type_table(void) mem_types[MT_LOW_VECTORS].prot_l1 |= ecc_mask; mem_types[MT_HIGH_VECTORS].prot_l1 |= ecc_mask; - mem_types[MT_MEMORY].prot_sect |= ecc_mask | cp->pmd; - mem_types[MT_MEMORY].prot_pte |= kern_pgprot; + mem_types[MT_MEMORY_RWX].prot_sect |= ecc_mask | cp->pmd; + mem_types[MT_MEMORY_RWX].prot_pte |= kern_pgprot; + mem_types[MT_MEMORY_RW].prot_sect |= ecc_mask | cp->pmd; + mem_types[MT_MEMORY_RW].prot_pte |= kern_pgprot; mem_types[MT_MEMORY_DMA_READY].prot_pte |= kern_pgprot; - mem_types[MT_MEMORY_NONCACHED].prot_sect |= ecc_mask; + mem_types[MT_MEMORY_RWX_NONCACHED].prot_sect |= ecc_mask; mem_types[MT_ROM].prot_sect |= cp->pmd; switch (cp->pmd) { @@ -1296,6 +1350,8 @@ static void __init kmap_init(void) static void __init map_lowmem(void) { struct memblock_region *reg; + unsigned long kernel_x_start = round_down(__pa(_stext), SECTION_SIZE); + unsigned long kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); /* Map all the lowmem memory banks. */ for_each_memblock(memory, reg) { @@ -1308,12 +1364,40 @@ static void __init map_lowmem(void) if (start >= end) break; - map.pfn = __phys_to_pfn(start); - map.virtual = __phys_to_virt(start); - map.length = end - start; - map.type = MT_MEMORY; + if (end < kernel_x_start || start >= kernel_x_end) { + map.pfn = __phys_to_pfn(start); + map.virtual = __phys_to_virt(start); + map.length = end - start; + map.type = MT_MEMORY_RWX; - create_mapping(&map); + create_mapping(&map); + } else { + /* This better cover the entire kernel */ + if (start < kernel_x_start) { + map.pfn = __phys_to_pfn(start); + map.virtual = __phys_to_virt(start); + map.length = kernel_x_start - start; + map.type = MT_MEMORY_RW; + + create_mapping(&map); + } + + map.pfn = __phys_to_pfn(kernel_x_start); + map.virtual = __phys_to_virt(kernel_x_start); + map.length = kernel_x_end - kernel_x_start; + map.type = MT_MEMORY_RWX; + + create_mapping(&map); + + if (kernel_x_end < end) { + map.pfn = __phys_to_pfn(kernel_x_end); + map.virtual = __phys_to_virt(kernel_x_end); + map.length = end - kernel_x_end; + map.type = MT_MEMORY_RW; + + create_mapping(&map); + } + } } } diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c index 1046b373d1ae..249379535be2 100644 --- a/arch/arm/mm/pgd.c +++ b/arch/arm/mm/pgd.c @@ -23,7 +23,7 @@ #define __pgd_alloc() kmalloc(PTRS_PER_PGD * sizeof(pgd_t), GFP_KERNEL) #define __pgd_free(pgd) kfree(pgd) #else -#define __pgd_alloc() (pgd_t *)__get_free_pages(GFP_KERNEL, 2) +#define __pgd_alloc() (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_REPEAT, 2) #define __pgd_free(pgd) free_pages((unsigned long)pgd, 2) #endif diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c index 83e4f959ee47..85501238b425 100644 --- a/arch/arm/xen/enlighten.c +++ b/arch/arm/xen/enlighten.c @@ -96,7 +96,7 @@ static int remap_pte_fn(pte_t *ptep, pgtable_t token, unsigned long addr, struct remap_data *info = data; struct page *page = info->pages[info->index++]; unsigned long pfn = page_to_pfn(page); - pte_t pte = pfn_pte(pfn, info->prot); + pte_t pte = pte_mkspecial(pfn_pte(pfn, info->prot)); if (map_foreign_page(pfn, info->fgmfn, info->domid)) return -EFAULT; @@ -224,10 +224,10 @@ static int __init xen_guest_init(void) } if (of_address_to_resource(node, GRANT_TABLE_PHYSADDR, &res)) return 0; - xen_hvm_resume_frames = res.start >> PAGE_SHIFT; + xen_hvm_resume_frames = res.start; xen_events_irq = irq_of_parse_and_map(node, 0); pr_info("Xen %s support found, events_irq=%d gnttab_frame_pfn=%lx\n", - version, xen_events_irq, xen_hvm_resume_frames); + version, xen_events_irq, (xen_hvm_resume_frames >> PAGE_SHIFT)); xen_domain_type = XEN_HVM_DOMAIN; xen_setup_features(); diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 88c8b6c1341a..6d4dd22ee4b7 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -159,8 +159,7 @@ config NR_CPUS range 2 32 depends on SMP # These have to remain sorted largest to smallest - default "8" if ARCH_XGENE - default "4" + default "8" config HOTPLUG_CPU bool "Support for hot-pluggable CPUs" diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 4cc813eddacb..572769727227 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -229,7 +229,7 @@ extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot extern void __iounmap(volatile void __iomem *addr); extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size); -#define PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY) +#define PROT_DEFAULT (pgprot_default | PTE_DIRTY) #define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE)) #define PROT_NORMAL_NC (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC)) #define PROT_NORMAL (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL)) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index 755f86143320..b1d2e26c3c88 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -43,7 +43,7 @@ * Section */ #define PMD_SECT_VALID (_AT(pmdval_t, 1) << 0) -#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 2) +#define PMD_SECT_PROT_NONE (_AT(pmdval_t, 1) << 58) #define PMD_SECT_USER (_AT(pmdval_t, 1) << 6) /* AP[1] */ #define PMD_SECT_RDONLY (_AT(pmdval_t, 1) << 7) /* AP[2] */ #define PMD_SECT_S (_AT(pmdval_t, 3) << 8) diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h index 2820f1a6eebe..dde3fc9c49f0 100644 --- a/arch/arm64/include/asm/xen/page-coherent.h +++ b/arch/arm64/include/asm/xen/page-coherent.h @@ -23,25 +23,21 @@ static inline void xen_dma_map_page(struct device *hwdev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, struct dma_attrs *attrs) { - __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, size_t size, enum dma_data_direction dir, struct dma_attrs *attrs) { - __generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, 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) { - __generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, 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) { - __generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir); } #endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */ diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 7009387348b7..c68cca5c3523 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -282,8 +282,9 @@ ENDPROC(secondary_holding_pen) * be used where CPUs are brought online dynamically by the kernel. */ ENTRY(secondary_entry) - bl __calc_phys_offset // x2=phys offset bl el2_setup // Drop to EL1 + bl __calc_phys_offset // x24=PHYS_OFFSET, x28=PHYS_OFFSET-PAGE_OFFSET + bl set_cpu_boot_mode_flag b secondary_startup ENDPROC(secondary_entry) diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index 6777a2192b83..6a8928bba03c 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -214,31 +214,29 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type, { int err, len, type, disabled = !ctrl.enabled; - if (disabled) { - len = 0; - type = HW_BREAKPOINT_EMPTY; - } else { - err = arch_bp_generic_fields(ctrl, &len, &type); - if (err) - return err; - - switch (note_type) { - case NT_ARM_HW_BREAK: - if ((type & HW_BREAKPOINT_X) != type) - return -EINVAL; - break; - case NT_ARM_HW_WATCH: - if ((type & HW_BREAKPOINT_RW) != type) - return -EINVAL; - break; - default: + attr->disabled = disabled; + if (disabled) + return 0; + + err = arch_bp_generic_fields(ctrl, &len, &type); + if (err) + return err; + + switch (note_type) { + case NT_ARM_HW_BREAK: + if ((type & HW_BREAKPOINT_X) != type) return -EINVAL; - } + break; + case NT_ARM_HW_WATCH: + if ((type & HW_BREAKPOINT_RW) != type) + return -EINVAL; + break; + default: + return -EINVAL; } attr->bp_len = len; attr->bp_type = type; - attr->disabled = disabled; return 0; } diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index 421b99fd635d..0f7fec52c7f8 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -111,12 +111,12 @@ ENTRY(__cpu_setup) bl __flush_dcache_all mov lr, x28 ic iallu // I+BTB cache invalidate + tlbi vmalle1is // invalidate I + D TLBs dsb sy mov x0, #3 << 20 msr cpacr_el1, x0 // Enable FP/ASIMD msr mdscr_el1, xzr // Reset mdscr_el1 - tlbi vmalle1is // invalidate I + D TLBs /* * Memory region attributes for LPAE: * diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c index 7b1f2cd85400..1f121497b517 100644 --- a/arch/avr32/boards/favr-32/setup.c +++ b/arch/avr32/boards/favr-32/setup.c @@ -298,8 +298,10 @@ static int __init set_abdac_rate(struct platform_device *pdev) */ retval = clk_round_rate(pll1, CONFIG_BOARD_FAVR32_ABDAC_RATE * 256 * 16); - if (retval < 0) + if (retval <= 0) { + retval = -EINVAL; goto out_abdac; + } retval = clk_set_rate(pll1, retval); if (retval != 0) diff --git a/arch/avr32/configs/atngw100_defconfig b/arch/avr32/configs/atngw100_defconfig index d5aff36ade92..4733e38e7ae6 100644 --- a/arch/avr32/configs/atngw100_defconfig +++ b/arch/avr32/configs/atngw100_defconfig @@ -59,7 +59,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100_evklcd100_defconfig b/arch/avr32/configs/atngw100_evklcd100_defconfig index 4abcf435d599..1be0ee31bd91 100644 --- a/arch/avr32/configs/atngw100_evklcd100_defconfig +++ b/arch/avr32/configs/atngw100_evklcd100_defconfig @@ -61,7 +61,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100_evklcd101_defconfig b/arch/avr32/configs/atngw100_evklcd101_defconfig index 18f3fa0470ff..796e536f7bc4 100644 --- a/arch/avr32/configs/atngw100_evklcd101_defconfig +++ b/arch/avr32/configs/atngw100_evklcd101_defconfig @@ -60,7 +60,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100_mrmt_defconfig b/arch/avr32/configs/atngw100_mrmt_defconfig index 06e389cfcd12..9a57da44eb6f 100644 --- a/arch/avr32/configs/atngw100_mrmt_defconfig +++ b/arch/avr32/configs/atngw100_mrmt_defconfig @@ -48,7 +48,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100mkii_defconfig b/arch/avr32/configs/atngw100mkii_defconfig index 2518a1368d7c..97fe1b399b06 100644 --- a/arch/avr32/configs/atngw100mkii_defconfig +++ b/arch/avr32/configs/atngw100mkii_defconfig @@ -59,7 +59,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig index 245ef6bd0fa6..a176d24467e9 100644 --- a/arch/avr32/configs/atngw100mkii_evklcd100_defconfig +++ b/arch/avr32/configs/atngw100mkii_evklcd100_defconfig @@ -62,7 +62,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig index fa6cbac6e418..d1bf6dcfc47d 100644 --- a/arch/avr32/configs/atngw100mkii_evklcd101_defconfig +++ b/arch/avr32/configs/atngw100mkii_evklcd101_defconfig @@ -61,7 +61,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig index bbd5131021a5..2813dd2b9138 100644 --- a/arch/avr32/configs/atstk1002_defconfig +++ b/arch/avr32/configs/atstk1002_defconfig @@ -53,7 +53,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atstk1003_defconfig b/arch/avr32/configs/atstk1003_defconfig index c1cd726f9012..f8ff3a3baad4 100644 --- a/arch/avr32/configs/atstk1003_defconfig +++ b/arch/avr32/configs/atstk1003_defconfig @@ -42,7 +42,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atstk1004_defconfig b/arch/avr32/configs/atstk1004_defconfig index 754ae56b2767..992228e54e38 100644 --- a/arch/avr32/configs/atstk1004_defconfig +++ b/arch/avr32/configs/atstk1004_defconfig @@ -42,7 +42,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/atstk1006_defconfig b/arch/avr32/configs/atstk1006_defconfig index 58589d8cc0ac..b8e698b0d1fa 100644 --- a/arch/avr32/configs/atstk1006_defconfig +++ b/arch/avr32/configs/atstk1006_defconfig @@ -54,7 +54,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/favr-32_defconfig b/arch/avr32/configs/favr-32_defconfig index c90fbf6d35bc..07bed3f7eb5e 100644 --- a/arch/avr32/configs/favr-32_defconfig +++ b/arch/avr32/configs/favr-32_defconfig @@ -58,7 +58,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/hammerhead_defconfig b/arch/avr32/configs/hammerhead_defconfig index ba7c31e269cb..18db853386c8 100644 --- a/arch/avr32/configs/hammerhead_defconfig +++ b/arch/avr32/configs/hammerhead_defconfig @@ -58,7 +58,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/configs/merisc_defconfig b/arch/avr32/configs/merisc_defconfig index 65de4431108c..91df6b2986be 100644 --- a/arch/avr32/configs/merisc_defconfig +++ b/arch/avr32/configs/merisc_defconfig @@ -46,7 +46,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set CONFIG_MTD=y CONFIG_MTD_CONCAT=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_CFI=y diff --git a/arch/avr32/configs/mimc200_defconfig b/arch/avr32/configs/mimc200_defconfig index 0a8bfdc420e0..d630e089dd32 100644 --- a/arch/avr32/configs/mimc200_defconfig +++ b/arch/avr32/configs/mimc200_defconfig @@ -49,7 +49,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_PREVENT_FIRMWARE_BUILD is not set # CONFIG_FW_LOADER is not set CONFIG_MTD=y -CONFIG_MTD_PARTITIONS=y CONFIG_MTD_CMDLINE_PARTS=y CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c index 12f828ad5058..d0f771be9e96 100644 --- a/arch/avr32/kernel/time.c +++ b/arch/avr32/kernel/time.c @@ -59,7 +59,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) static struct irqaction timer_irqaction = { .handler = timer_interrupt, /* Oprofile uses the same irq as the timer, so allow it to be shared */ - .flags = IRQF_TIMER | IRQF_DISABLED | IRQF_SHARED, + .flags = IRQF_TIMER | IRQF_SHARED, .name = "avr32_comparator", }; diff --git a/arch/avr32/mach-at32ap/pm.c b/arch/avr32/mach-at32ap/pm.c index 32d680eb6f48..db190842b80c 100644 --- a/arch/avr32/mach-at32ap/pm.c +++ b/arch/avr32/mach-at32ap/pm.c @@ -181,7 +181,7 @@ static const struct platform_suspend_ops avr32_pm_ops = { .enter = avr32_pm_enter, }; -static unsigned long avr32_pm_offset(void *symbol) +static unsigned long __init avr32_pm_offset(void *symbol) { extern u8 pm_exception[]; diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi index bd14c00e5146..2d7cb04ac962 100644 --- a/arch/powerpc/boot/dts/mpc5121.dtsi +++ b/arch/powerpc/boot/dts/mpc5121.dtsi @@ -77,7 +77,6 @@ compatible = "fsl,mpc5121-immr"; #address-cells = <1>; #size-cells = <1>; - #interrupt-cells = <2>; ranges = <0x0 0x80000000 0x400000>; reg = <0x80000000 0x400000>; bus-frequency = <66000000>; /* 66 MHz ips bus */ diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts index 4177b62240c2..a618dfc13e4c 100644 --- a/arch/powerpc/boot/dts/mpc5125twr.dts +++ b/arch/powerpc/boot/dts/mpc5125twr.dts @@ -58,7 +58,6 @@ compatible = "fsl,mpc5121-immr"; #address-cells = <1>; #size-cells = <1>; - #interrupt-cells = <2>; ranges = <0x0 0x80000000 0x400000>; reg = <0x80000000 0x400000>; bus-frequency = <66000000>; // 66 MHz ips bus @@ -189,6 +188,10 @@ reg = <0xA000 0x1000>; }; + // disable USB1 port + // TODO: + // correct pinmux config and fix USB3320 ulpi dependency + // before re-enabling it usb@3000 { compatible = "fsl,mpc5121-usb2-dr"; reg = <0x3000 0x400>; @@ -197,6 +200,7 @@ interrupts = <43 0x8>; dr_mode = "host"; phy_type = "ulpi"; + status = "disabled"; }; // 5125 PSCs are not 52xx or 5121 PSC compatible diff --git a/arch/powerpc/configs/52xx/cm5200_defconfig b/arch/powerpc/configs/52xx/cm5200_defconfig index 69b57daf402e..0b88c7b30bb9 100644 --- a/arch/powerpc/configs/52xx/cm5200_defconfig +++ b/arch/powerpc/configs/52xx/cm5200_defconfig @@ -12,7 +12,6 @@ CONFIG_EXPERT=y CONFIG_PPC_MPC52xx=y CONFIG_PPC_MPC5200_SIMPLE=y # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_SPARSE_IRQ=y CONFIG_PM=y # CONFIG_PCI is not set @@ -71,6 +70,8 @@ CONFIG_USB_DEVICEFS=y CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_STORAGE=y +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/52xx/lite5200b_defconfig b/arch/powerpc/configs/52xx/lite5200b_defconfig index f3638ae0a627..104a332e79ab 100644 --- a/arch/powerpc/configs/52xx/lite5200b_defconfig +++ b/arch/powerpc/configs/52xx/lite5200b_defconfig @@ -15,7 +15,6 @@ CONFIG_PPC_MPC52xx=y CONFIG_PPC_MPC5200_SIMPLE=y CONFIG_PPC_LITE5200=y # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_SPARSE_IRQ=y @@ -59,6 +58,8 @@ CONFIG_I2C_CHARDEV=y CONFIG_I2C_MPC=y # CONFIG_HWMON is not set CONFIG_VIDEO_OUTPUT_CONTROL=m +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/52xx/motionpro_defconfig b/arch/powerpc/configs/52xx/motionpro_defconfig index 0c7de9620ea6..0d13ad7e4478 100644 --- a/arch/powerpc/configs/52xx/motionpro_defconfig +++ b/arch/powerpc/configs/52xx/motionpro_defconfig @@ -12,7 +12,6 @@ CONFIG_EXPERT=y CONFIG_PPC_MPC52xx=y CONFIG_PPC_MPC5200_SIMPLE=y # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_SPARSE_IRQ=y CONFIG_PM=y # CONFIG_PCI is not set @@ -84,6 +83,8 @@ CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_TIMER=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/52xx/pcm030_defconfig b/arch/powerpc/configs/52xx/pcm030_defconfig index 22e719575c60..430aa182fa1c 100644 --- a/arch/powerpc/configs/52xx/pcm030_defconfig +++ b/arch/powerpc/configs/52xx/pcm030_defconfig @@ -21,7 +21,6 @@ CONFIG_MODULE_UNLOAD=y CONFIG_PPC_MPC52xx=y CONFIG_PPC_MPC5200_SIMPLE=y # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_HZ_100=y @@ -87,6 +86,8 @@ CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_STORAGE=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_PCF8563=m +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=m CONFIG_EXT3_FS=m # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/52xx/tqm5200_defconfig b/arch/powerpc/configs/52xx/tqm5200_defconfig index 716a37be16e3..7af4c5bb7c63 100644 --- a/arch/powerpc/configs/52xx/tqm5200_defconfig +++ b/arch/powerpc/configs/52xx/tqm5200_defconfig @@ -17,7 +17,6 @@ CONFIG_PPC_MPC52xx=y CONFIG_PPC_MPC5200_SIMPLE=y CONFIG_PPC_MPC5200_BUGFIX=y # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_PM=y # CONFIG_PCI is not set CONFIG_NET=y @@ -86,6 +85,8 @@ CONFIG_USB_STORAGE=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_RTC_DRV_DS1374=y +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/mpc5200_defconfig b/arch/powerpc/configs/mpc5200_defconfig index 6640a35bebb7..8b682d1cf4d6 100644 --- a/arch/powerpc/configs/mpc5200_defconfig +++ b/arch/powerpc/configs/mpc5200_defconfig @@ -15,7 +15,6 @@ CONFIG_PPC_MEDIA5200=y CONFIG_PPC_MPC5200_BUGFIX=y CONFIG_PPC_MPC5200_LPBFIFO=m # CONFIG_PPC_PMAC is not set -CONFIG_PPC_BESTCOMM=y CONFIG_SIMPLE_GPIO=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y @@ -125,6 +124,8 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_RTC_DRV_DS1374=y CONFIG_RTC_DRV_PCF8563=m +CONFIG_DMADEVICES=y +CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig index bd8a6f71944f..cec044a3ff69 100644 --- a/arch/powerpc/configs/pasemi_defconfig +++ b/arch/powerpc/configs/pasemi_defconfig @@ -2,7 +2,6 @@ CONFIG_PPC64=y CONFIG_ALTIVEC=y CONFIG_SMP=y CONFIG_NR_CPUS=2 -CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y @@ -45,8 +44,9 @@ CONFIG_INET_AH=y CONFIG_INET_ESP=y # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y CONFIG_MTD=y -CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_SLRAM=y CONFIG_MTD_PHRAM=y @@ -88,7 +88,6 @@ CONFIG_BLK_DEV_DM=y CONFIG_DM_CRYPT=y CONFIG_NETDEVICES=y CONFIG_DUMMY=y -CONFIG_MII=y CONFIG_TIGON3=y CONFIG_E1000=y CONFIG_PASEMI_MAC=y @@ -174,8 +173,8 @@ CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ISO8859_1=y CONFIG_CRC_CCITT=y CONFIG_PRINTK_TIME=y -CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_FS=y +CONFIG_MAGIC_SYSRQ=y CONFIG_DEBUG_KERNEL=y CONFIG_DETECT_HUNG_TASK=y # CONFIG_SCHED_DEBUG is not set diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 894662a5d4d5..243ce69ad685 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -284,7 +284,7 @@ do_kvm_##n: \ subi r1,r1,INT_FRAME_SIZE; /* alloc frame on kernel stack */ \ beq- 1f; \ ld r1,PACAKSAVE(r13); /* kernel stack to use */ \ -1: cmpdi cr1,r1,0; /* check if r1 is in userspace */ \ +1: cmpdi cr1,r1,-INT_FRAME_SIZE; /* check if r1 is in userspace */ \ blt+ cr1,3f; /* abort if it is */ \ li r1,(n); /* will be reloaded later */ \ sth r1,PACA_TRAP_SAVE(r13); \ diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 4a594b76674d..bc23b1ba7980 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -192,6 +192,10 @@ extern void kvmppc_load_up_vsx(void); extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst); extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst); extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd); +extern void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, + struct kvm_vcpu *vcpu); +extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, + struct kvmppc_book3s_shadow_vcpu *svcpu); static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu) { diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index 0bd9348a4db9..192917d2239c 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -79,6 +79,7 @@ struct kvmppc_host_state { ulong vmhandler; ulong scratch0; ulong scratch1; + ulong scratch2; u8 in_guest; u8 restore_hid5; u8 napping; @@ -106,6 +107,7 @@ struct kvmppc_host_state { }; struct kvmppc_book3s_shadow_vcpu { + bool in_use; ulong gpr[14]; u32 cr; u32 xer; diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 033c06be1d84..7bdcf340016c 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -720,13 +720,13 @@ int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe, int64_t opal_pci_poll(uint64_t phb_id); int64_t opal_return_cpu(void); -int64_t opal_xscom_read(uint32_t gcid, uint32_t pcb_addr, uint64_t *val); +int64_t opal_xscom_read(uint32_t gcid, uint32_t pcb_addr, __be64 *val); int64_t opal_xscom_write(uint32_t gcid, uint32_t pcb_addr, uint64_t val); int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, uint32_t addr, uint32_t data, uint32_t sz); int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, - uint32_t addr, uint32_t *data, uint32_t sz); + uint32_t addr, __be32 *data, uint32_t sz); int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); int64_t opal_manage_flash(uint8_t op); int64_t opal_update_flash(uint64_t blk_list); diff --git a/arch/powerpc/include/asm/pgalloc-32.h b/arch/powerpc/include/asm/pgalloc-32.h index 27b2386f738a..842846c1b711 100644 --- a/arch/powerpc/include/asm/pgalloc-32.h +++ b/arch/powerpc/include/asm/pgalloc-32.h @@ -84,10 +84,8 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - struct page *page = page_address(table); - tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(page); - pgtable_free_tlb(tlb, page, 0); + pgtable_page_dtor(table); + pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_PGALLOC_32_H */ diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h index 694012877bf7..4b0be20fcbfd 100644 --- a/arch/powerpc/include/asm/pgalloc-64.h +++ b/arch/powerpc/include/asm/pgalloc-64.h @@ -148,11 +148,9 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - struct page *page = page_address(table); - tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(page); - pgtable_free_tlb(tlb, page, 0); + pgtable_page_dtor(table); + pgtable_free_tlb(tlb, page_address(table), 0); } #else /* if CONFIG_PPC_64K_PAGES */ diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h index 9ee12610af02..aace90547614 100644 --- a/arch/powerpc/include/asm/switch_to.h +++ b/arch/powerpc/include/asm/switch_to.h @@ -35,7 +35,7 @@ extern void giveup_vsx(struct task_struct *); extern void enable_kernel_spe(void); extern void giveup_spe(struct task_struct *); extern void load_up_spe(struct task_struct *); -extern void switch_booke_debug_regs(struct thread_struct *new_thread); +extern void switch_booke_debug_regs(struct debug_reg *new_debug); #ifndef CONFIG_SMP extern void discard_lazy_cpu_state(void); diff --git a/arch/powerpc/include/asm/unaligned.h b/arch/powerpc/include/asm/unaligned.h index 5f1b1e3c2137..8296381ae432 100644 --- a/arch/powerpc/include/asm/unaligned.h +++ b/arch/powerpc/include/asm/unaligned.h @@ -4,13 +4,18 @@ #ifdef __KERNEL__ /* - * The PowerPC can do unaligned accesses itself in big endian mode. + * The PowerPC can do unaligned accesses itself based on its endian mode. */ #include <linux/unaligned/access_ok.h> #include <linux/unaligned/generic.h> +#ifdef __LITTLE_ENDIAN__ +#define get_unaligned __get_unaligned_le +#define put_unaligned __put_unaligned_le +#else #define get_unaligned __get_unaligned_be #define put_unaligned __put_unaligned_be +#endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_UNALIGNED_H */ diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 2ea5cc033ec8..d3de01066f7d 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -576,6 +576,7 @@ int main(void) HSTATE_FIELD(HSTATE_VMHANDLER, vmhandler); HSTATE_FIELD(HSTATE_SCRATCH0, scratch0); HSTATE_FIELD(HSTATE_SCRATCH1, scratch1); + HSTATE_FIELD(HSTATE_SCRATCH2, scratch2); HSTATE_FIELD(HSTATE_IN_GUEST, in_guest); HSTATE_FIELD(HSTATE_RESTORE_HID5, restore_hid5); HSTATE_FIELD(HSTATE_NAPPING, napping); diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index 779a78c26435..11c1d069d920 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -124,15 +124,15 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, void crash_free_reserved_phys_range(unsigned long begin, unsigned long end) { unsigned long addr; - const u32 *basep, *sizep; + const __be32 *basep, *sizep; unsigned int rtas_start = 0, rtas_end = 0; basep = of_get_property(rtas.dev, "linux,rtas-base", NULL); sizep = of_get_property(rtas.dev, "rtas-size", NULL); if (basep && sizep) { - rtas_start = *basep; - rtas_end = *basep + *sizep; + rtas_start = be32_to_cpup(basep); + rtas_end = rtas_start + be32_to_cpup(sizep); } for (addr = begin; addr < end; addr += PAGE_SIZE) { diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 2ae41aba4053..4f0946de2d5c 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -80,6 +80,7 @@ END_FTR_SECTION(0, 1) * of the function that the cpu should jump to to continue * initialization. */ + .balign 8 .globl __secondary_hold_spinloop __secondary_hold_spinloop: .llong 0x0 @@ -470,6 +471,7 @@ _STATIC(__after_prom_start) mtctr r8 bctr +.balign 8 p_end: .llong _end - _stext 4: /* Now copy the rest of the kernel up to _end */ diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index 88a7fb458dfd..75d4f7340da8 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -148,7 +148,7 @@ void __init reserve_crashkernel(void) * a small SLB (128MB) since the crash kernel needs to place * itself and some stacks to be in the first segment. */ - crashk_res.start = min(0x80000000ULL, (ppc64_rma_size / 2)); + crashk_res.start = min(0x8000000ULL, (ppc64_rma_size / 2)); #else crashk_res.start = KDUMP_KERNELBASE; #endif diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index e59caf874d05..64bf8db12b15 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -246,8 +246,8 @@ _GLOBAL(__bswapdi2) or r3,r7,r9 blr -#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) +#ifdef CONFIG_PPC_EARLY_DEBUG_BOOTX _GLOBAL(rmci_on) sync isync @@ -277,6 +277,9 @@ _GLOBAL(rmci_off) isync sync blr +#endif /* CONFIG_PPC_EARLY_DEBUG_BOOTX */ + +#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) /* * Do an IO access in real mode diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 3386d8ab7eb0..4a96556fd2d4 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -339,7 +339,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread) #endif } -static void prime_debug_regs(struct thread_struct *thread) +static void prime_debug_regs(struct debug_reg *debug) { /* * We could have inherited MSR_DE from userspace, since @@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread) */ mtmsr(mfmsr() & ~MSR_DE); - mtspr(SPRN_IAC1, thread->debug.iac1); - mtspr(SPRN_IAC2, thread->debug.iac2); + mtspr(SPRN_IAC1, debug->iac1); + mtspr(SPRN_IAC2, debug->iac2); #if CONFIG_PPC_ADV_DEBUG_IACS > 2 - mtspr(SPRN_IAC3, thread->debug.iac3); - mtspr(SPRN_IAC4, thread->debug.iac4); + mtspr(SPRN_IAC3, debug->iac3); + mtspr(SPRN_IAC4, debug->iac4); #endif - mtspr(SPRN_DAC1, thread->debug.dac1); - mtspr(SPRN_DAC2, thread->debug.dac2); + mtspr(SPRN_DAC1, debug->dac1); + mtspr(SPRN_DAC2, debug->dac2); #if CONFIG_PPC_ADV_DEBUG_DVCS > 0 - mtspr(SPRN_DVC1, thread->debug.dvc1); - mtspr(SPRN_DVC2, thread->debug.dvc2); + mtspr(SPRN_DVC1, debug->dvc1); + mtspr(SPRN_DVC2, debug->dvc2); #endif - mtspr(SPRN_DBCR0, thread->debug.dbcr0); - mtspr(SPRN_DBCR1, thread->debug.dbcr1); + mtspr(SPRN_DBCR0, debug->dbcr0); + mtspr(SPRN_DBCR1, debug->dbcr1); #ifdef CONFIG_BOOKE - mtspr(SPRN_DBCR2, thread->debug.dbcr2); + mtspr(SPRN_DBCR2, debug->dbcr2); #endif } /* @@ -371,11 +371,11 @@ static void prime_debug_regs(struct thread_struct *thread) * debug registers, set the debug registers from the values * stored in the new thread. */ -void switch_booke_debug_regs(struct thread_struct *new_thread) +void switch_booke_debug_regs(struct debug_reg *new_debug) { if ((current->thread.debug.dbcr0 & DBCR0_IDM) - || (new_thread->debug.dbcr0 & DBCR0_IDM)) - prime_debug_regs(new_thread); + || (new_debug->dbcr0 & DBCR0_IDM)) + prime_debug_regs(new_debug); } EXPORT_SYMBOL_GPL(switch_booke_debug_regs); #else /* !CONFIG_PPC_ADV_DEBUG_REGS */ @@ -683,7 +683,7 @@ struct task_struct *__switch_to(struct task_struct *prev, #endif /* CONFIG_SMP */ #ifdef CONFIG_PPC_ADV_DEBUG_REGS - switch_booke_debug_regs(&new->thread); + switch_booke_debug_regs(&new->thread.debug); #else /* * For PPC_BOOK3S_64, we use the hw-breakpoint interfaces that would diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c index 75fb40498b41..2e3d2bf536c5 100644 --- a/arch/powerpc/kernel/ptrace.c +++ b/arch/powerpc/kernel/ptrace.c @@ -1555,7 +1555,7 @@ long arch_ptrace(struct task_struct *child, long request, flush_fp_to_thread(child); if (fpidx < (PT_FPSCR - PT_FPR0)) - memcpy(&tmp, &child->thread.fp_state.fpr, + memcpy(&tmp, &child->thread.TS_FPR(fpidx), sizeof(long)); else tmp = child->thread.fp_state.fpscr; @@ -1588,7 +1588,7 @@ long arch_ptrace(struct task_struct *child, long request, flush_fp_to_thread(child); if (fpidx < (PT_FPSCR - PT_FPR0)) - memcpy(&child->thread.fp_state.fpr, &data, + memcpy(&child->thread.TS_FPR(fpidx), &data, sizeof(long)); else child->thread.fp_state.fpscr = data; diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index febc80445d25..bc76cc6b419c 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -479,7 +479,7 @@ void __init smp_setup_cpu_maps(void) if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) && (dn = of_find_node_by_path("/rtas"))) { int num_addr_cell, num_size_cell, maxcpus; - const unsigned int *ireg; + const __be32 *ireg; num_addr_cell = of_n_addr_cells(dn); num_size_cell = of_n_size_cells(dn); @@ -489,7 +489,7 @@ void __init smp_setup_cpu_maps(void) if (!ireg) goto out; - maxcpus = ireg[num_addr_cell + num_size_cell]; + maxcpus = be32_to_cpup(ireg + num_addr_cell + num_size_cell); /* Double maxcpus for processors which have SMT capability */ if (cpu_has_feature(CPU_FTR_SMT)) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index a3b64f3bf9a2..c1cf4a1522d9 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -580,7 +580,7 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) int cpu_to_core_id(int cpu) { struct device_node *np; - const int *reg; + const __be32 *reg; int id = -1; np = of_get_cpu_node(cpu, NULL); @@ -591,7 +591,7 @@ int cpu_to_core_id(int cpu) if (!reg) goto out; - id = *reg; + id = be32_to_cpup(reg); out: of_node_put(np); return id; diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index f3ff587a8b7d..c5d148434c08 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -469,11 +469,14 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, slb_v = vcpu->kvm->arch.vrma_slb_v; } + preempt_disable(); /* Find the HPTE in the hash table */ index = kvmppc_hv_find_lock_hpte(kvm, eaddr, slb_v, HPTE_V_VALID | HPTE_V_ABSENT); - if (index < 0) + if (index < 0) { + preempt_enable(); return -ENOENT; + } hptep = (unsigned long *)(kvm->arch.hpt_virt + (index << 4)); v = hptep[0] & ~HPTE_V_HVLOCK; gr = kvm->arch.revmap[index].guest_rpte; @@ -481,6 +484,7 @@ static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr, /* Unlock the HPTE */ asm volatile("lwsync" : : : "memory"); hptep[0] = v; + preempt_enable(); gpte->eaddr = eaddr; gpte->vpage = ((v & HPTE_V_AVPN) << 4) | ((eaddr >> 12) & 0xfff); @@ -665,6 +669,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, return -EFAULT; } else { page = pages[0]; + pfn = page_to_pfn(page); if (PageHuge(page)) { page = compound_head(page); pte_size <<= compound_order(page); @@ -689,7 +694,6 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, } rcu_read_unlock_sched(); } - pfn = page_to_pfn(page); } ret = -EFAULT; @@ -707,8 +711,14 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, r = (r & ~(HPTE_R_W|HPTE_R_I|HPTE_R_G)) | HPTE_R_M; } - /* Set the HPTE to point to pfn */ - r = (r & ~(HPTE_R_PP0 - pte_size)) | (pfn << PAGE_SHIFT); + /* + * Set the HPTE to point to pfn. + * Since the pfn is at PAGE_SIZE granularity, make sure we + * don't mask out lower-order bits if psize < PAGE_SIZE. + */ + if (psize < PAGE_SIZE) + psize = PAGE_SIZE; + r = (r & ~(HPTE_R_PP0 - psize)) | ((pfn << PAGE_SHIFT) & ~(psize - 1)); if (hpte_is_writable(r) && !write_ok) r = hpte_make_readonly(r); ret = RESUME_GUEST; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 072287f1c3bc..b51d5db78068 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -131,8 +131,9 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu) static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu) { struct kvmppc_vcore *vc = vcpu->arch.vcore; + unsigned long flags; - spin_lock(&vcpu->arch.tbacct_lock); + spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags); if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE && vc->preempt_tb != TB_NIL) { vc->stolen_tb += mftb() - vc->preempt_tb; @@ -143,19 +144,20 @@ static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu) vcpu->arch.busy_stolen += mftb() - vcpu->arch.busy_preempt; vcpu->arch.busy_preempt = TB_NIL; } - spin_unlock(&vcpu->arch.tbacct_lock); + spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags); } static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu) { struct kvmppc_vcore *vc = vcpu->arch.vcore; + unsigned long flags; - spin_lock(&vcpu->arch.tbacct_lock); + spin_lock_irqsave(&vcpu->arch.tbacct_lock, flags); if (vc->runner == vcpu && vc->vcore_state != VCORE_INACTIVE) vc->preempt_tb = mftb(); if (vcpu->arch.state == KVMPPC_VCPU_BUSY_IN_HOST) vcpu->arch.busy_preempt = mftb(); - spin_unlock(&vcpu->arch.tbacct_lock); + spin_unlock_irqrestore(&vcpu->arch.tbacct_lock, flags); } static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr) @@ -486,11 +488,11 @@ static u64 vcore_stolen_time(struct kvmppc_vcore *vc, u64 now) */ if (vc->vcore_state != VCORE_INACTIVE && vc->runner->arch.run_task != current) { - spin_lock(&vc->runner->arch.tbacct_lock); + spin_lock_irq(&vc->runner->arch.tbacct_lock); p = vc->stolen_tb; if (vc->preempt_tb != TB_NIL) p += now - vc->preempt_tb; - spin_unlock(&vc->runner->arch.tbacct_lock); + spin_unlock_irq(&vc->runner->arch.tbacct_lock); } else { p = vc->stolen_tb; } @@ -512,10 +514,10 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu, core_stolen = vcore_stolen_time(vc, now); stolen = core_stolen - vcpu->arch.stolen_logged; vcpu->arch.stolen_logged = core_stolen; - spin_lock(&vcpu->arch.tbacct_lock); + spin_lock_irq(&vcpu->arch.tbacct_lock); stolen += vcpu->arch.busy_stolen; vcpu->arch.busy_stolen = 0; - spin_unlock(&vcpu->arch.tbacct_lock); + spin_unlock_irq(&vcpu->arch.tbacct_lock); if (!dt || !vpa) return; memset(dt, 0, sizeof(struct dtl_entry)); @@ -589,7 +591,9 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu) if (list_empty(&vcpu->kvm->arch.rtas_tokens)) return RESUME_HOST; + idx = srcu_read_lock(&vcpu->kvm->srcu); rc = kvmppc_rtas_hcall(vcpu); + srcu_read_unlock(&vcpu->kvm->srcu, idx); if (rc == -ENOENT) return RESUME_HOST; @@ -1115,13 +1119,13 @@ static void kvmppc_remove_runnable(struct kvmppc_vcore *vc, if (vcpu->arch.state != KVMPPC_VCPU_RUNNABLE) return; - spin_lock(&vcpu->arch.tbacct_lock); + spin_lock_irq(&vcpu->arch.tbacct_lock); now = mftb(); vcpu->arch.busy_stolen += vcore_stolen_time(vc, now) - vcpu->arch.stolen_logged; vcpu->arch.busy_preempt = now; vcpu->arch.state = KVMPPC_VCPU_BUSY_IN_HOST; - spin_unlock(&vcpu->arch.tbacct_lock); + spin_unlock_irq(&vcpu->arch.tbacct_lock); --vc->n_runnable; list_del(&vcpu->arch.run_list); } diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index 9c515440ad1a..8689e2e30857 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c @@ -225,6 +225,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, is_io = pa & (HPTE_R_I | HPTE_R_W); pte_size = PAGE_SIZE << (pa & KVMPPC_PAGE_ORDER_MASK); pa &= PAGE_MASK; + pa |= gpa & ~PAGE_MASK; } else { /* Translate to host virtual address */ hva = __gfn_to_hva_memslot(memslot, gfn); @@ -238,13 +239,13 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, ptel = hpte_make_readonly(ptel); is_io = hpte_cache_bits(pte_val(pte)); pa = pte_pfn(pte) << PAGE_SHIFT; + pa |= hva & (pte_size - 1); + pa |= gpa & ~PAGE_MASK; } } if (pte_size < psize) return H_PARAMETER; - if (pa && pte_size > psize) - pa |= gpa & (pte_size - 1); ptel &= ~(HPTE_R_PP0 - psize); ptel |= pa; @@ -749,6 +750,10 @@ static int slb_base_page_shift[4] = { 20, /* 1M, unsupported */ }; +/* When called from virtmode, this func should be protected by + * preempt_disable(), otherwise, the holding of HPTE_V_HVLOCK + * can trigger deadlock issue. + */ long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v, unsigned long valid) { diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index bc8de75b1925..be4fa04a37c9 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -153,7 +153,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206) 13: b machine_check_fwnmi - /* * We come in here when wakened from nap mode on a secondary hw thread. * Relocation is off and most register values are lost. @@ -224,6 +223,11 @@ kvm_start_guest: /* Clear our vcpu pointer so we don't come back in early */ li r0, 0 std r0, HSTATE_KVM_VCPU(r13) + /* + * Make sure we clear HSTATE_KVM_VCPU(r13) before incrementing + * the nap_count, because once the increment to nap_count is + * visible we could be given another vcpu. + */ lwsync /* Clear any pending IPI - we're an offline thread */ ld r5, HSTATE_XICS_PHYS(r13) @@ -241,7 +245,6 @@ kvm_start_guest: /* increment the nap count and then go to nap mode */ ld r4, HSTATE_KVM_VCORE(r13) addi r4, r4, VCORE_NAP_COUNT - lwsync /* make previous updates visible */ 51: lwarx r3, 0, r4 addi r3, r3, 1 stwcx. r3, 0, r4 @@ -751,15 +754,14 @@ kvmppc_interrupt_hv: * guest CR, R12 saved in shadow VCPU SCRATCH1/0 * guest R13 saved in SPRN_SCRATCH0 */ - /* abuse host_r2 as third scratch area; we get r2 from PACATOC(r13) */ - std r9, HSTATE_HOST_R2(r13) + std r9, HSTATE_SCRATCH2(r13) lbz r9, HSTATE_IN_GUEST(r13) cmpwi r9, KVM_GUEST_MODE_HOST_HV beq kvmppc_bad_host_intr #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE cmpwi r9, KVM_GUEST_MODE_GUEST - ld r9, HSTATE_HOST_R2(r13) + ld r9, HSTATE_SCRATCH2(r13) beq kvmppc_interrupt_pr #endif /* We're now back in the host but in guest MMU context */ @@ -779,7 +781,7 @@ kvmppc_interrupt_hv: std r6, VCPU_GPR(R6)(r9) std r7, VCPU_GPR(R7)(r9) std r8, VCPU_GPR(R8)(r9) - ld r0, HSTATE_HOST_R2(r13) + ld r0, HSTATE_SCRATCH2(r13) std r0, VCPU_GPR(R9)(r9) std r10, VCPU_GPR(R10)(r9) std r11, VCPU_GPR(R11)(r9) @@ -990,14 +992,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) */ /* Increment the threads-exiting-guest count in the 0xff00 bits of vcore->entry_exit_count */ - lwsync ld r5,HSTATE_KVM_VCORE(r13) addi r6,r5,VCORE_ENTRY_EXIT 41: lwarx r3,0,r6 addi r0,r3,0x100 stwcx. r0,0,r6 bne 41b - lwsync + isync /* order stwcx. vs. reading napping_threads */ /* * At this point we have an interrupt that we have to pass @@ -1030,6 +1031,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) sld r0,r0,r4 andc. r3,r3,r0 /* no sense IPI'ing ourselves */ beq 43f + /* Order entry/exit update vs. IPIs */ + sync mulli r4,r4,PACA_SIZE /* get paca for thread 0 */ subf r6,r4,r13 42: andi. r0,r3,1 @@ -1638,10 +1641,10 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206) bge kvm_cede_exit stwcx. r4,0,r6 bne 31b + /* order napping_threads update vs testing entry_exit_count */ + isync li r0,1 stb r0,HSTATE_NAPPING(r13) - /* order napping_threads update vs testing entry_exit_count */ - lwsync mr r4,r3 lwz r7,VCORE_ENTRY_EXIT(r5) cmpwi r7,0x100 diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S index f4dd041c14ea..f779450cb07c 100644 --- a/arch/powerpc/kvm/book3s_interrupts.S +++ b/arch/powerpc/kvm/book3s_interrupts.S @@ -129,29 +129,32 @@ kvm_start_lightweight: * R12 = exit handler id * R13 = PACA * SVCPU.* = guest * + * MSR.EE = 1 * */ + PPC_LL r3, GPR4(r1) /* vcpu pointer */ + + /* + * kvmppc_copy_from_svcpu can clobber volatile registers, save + * the exit handler id to the vcpu and restore it from there later. + */ + stw r12, VCPU_TRAP(r3) + /* Transfer reg values from shadow vcpu back to vcpu struct */ /* On 64-bit, interrupts are still off at this point */ - PPC_LL r3, GPR4(r1) /* vcpu pointer */ + GET_SHADOW_VCPU(r4) bl FUNC(kvmppc_copy_from_svcpu) nop #ifdef CONFIG_PPC_BOOK3S_64 - /* Re-enable interrupts */ - ld r3, HSTATE_HOST_MSR(r13) - ori r3, r3, MSR_EE - MTMSR_EERI(r3) - /* * Reload kernel SPRG3 value. * No need to save guest value as usermode can't modify SPRG3. */ ld r3, PACA_SPRG3(r13) mtspr SPRN_SPRG3, r3 - #endif /* CONFIG_PPC_BOOK3S_64 */ /* R7 = vcpu */ @@ -177,7 +180,7 @@ kvm_start_lightweight: PPC_STL r31, VCPU_GPR(R31)(r7) /* Pass the exit number as 3rd argument to kvmppc_handle_exit */ - mr r5, r12 + lwz r5, VCPU_TRAP(r7) /* Restore r3 (kvm_run) and r4 (vcpu) */ REST_2GPRS(3, r1) diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index fe14ca3dd171..5b9e9063cfaf 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -66,6 +66,7 @@ static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu) struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu); memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb)); svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max; + svcpu->in_use = 0; svcpu_put(svcpu); #endif vcpu->cpu = smp_processor_id(); @@ -78,6 +79,9 @@ static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu) { #ifdef CONFIG_PPC_BOOK3S_64 struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu); + if (svcpu->in_use) { + kvmppc_copy_from_svcpu(vcpu, svcpu); + } memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb)); to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max; svcpu_put(svcpu); @@ -110,12 +114,26 @@ void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu, svcpu->ctr = vcpu->arch.ctr; svcpu->lr = vcpu->arch.lr; svcpu->pc = vcpu->arch.pc; + svcpu->in_use = true; } /* Copy data touched by real-mode code from shadow vcpu back to vcpu */ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, struct kvmppc_book3s_shadow_vcpu *svcpu) { + /* + * vcpu_put would just call us again because in_use hasn't + * been updated yet. + */ + preempt_disable(); + + /* + * Maybe we were already preempted and synced the svcpu from + * our preempt notifiers. Don't bother touching this svcpu then. + */ + if (!svcpu->in_use) + goto out; + vcpu->arch.gpr[0] = svcpu->gpr[0]; vcpu->arch.gpr[1] = svcpu->gpr[1]; vcpu->arch.gpr[2] = svcpu->gpr[2]; @@ -139,6 +157,10 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu, vcpu->arch.fault_dar = svcpu->fault_dar; vcpu->arch.fault_dsisr = svcpu->fault_dsisr; vcpu->arch.last_inst = svcpu->last_inst; + svcpu->in_use = false; + +out: + preempt_enable(); } static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu) diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S index a38c4c9edab8..c3c5231adade 100644 --- a/arch/powerpc/kvm/book3s_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_rmhandlers.S @@ -153,15 +153,11 @@ _GLOBAL(kvmppc_entry_trampoline) li r6, MSR_IR | MSR_DR andc r6, r5, r6 /* Clear DR and IR in MSR value */ -#ifdef CONFIG_PPC_BOOK3S_32 /* * Set EE in HOST_MSR so that it's enabled when we get into our - * C exit handler function. On 64-bit we delay enabling - * interrupts until we have finished transferring stuff - * to or from the PACA. + * C exit handler function. */ ori r5, r5, MSR_EE -#endif mtsrr0 r7 mtsrr1 r6 RFI diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c index 53e65a210b9a..0591e05db74b 100644 --- a/arch/powerpc/kvm/booke.c +++ b/arch/powerpc/kvm/booke.c @@ -681,7 +681,7 @@ int kvmppc_core_check_requests(struct kvm_vcpu *vcpu) int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { int ret, s; - struct thread_struct thread; + struct debug_reg debug; #ifdef CONFIG_PPC_FPU struct thread_fp_state fp; int fpexc_mode; @@ -723,9 +723,9 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) #endif /* Switch to guest debug context */ - thread.debug = vcpu->arch.shadow_dbg_reg; - switch_booke_debug_regs(&thread); - thread.debug = current->thread.debug; + debug = vcpu->arch.shadow_dbg_reg; + switch_booke_debug_regs(&debug); + debug = current->thread.debug; current->thread.debug = vcpu->arch.shadow_dbg_reg; kvmppc_fix_ee_before_entry(); @@ -736,8 +736,8 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) We also get here with interrupts enabled. */ /* Switch back to user space debug context */ - switch_booke_debug_regs(&thread); - current->thread.debug = thread.debug; + switch_booke_debug_regs(&debug); + current->thread.debug = debug; #ifdef CONFIG_PPC_FPU kvmppc_save_guest_fp(vcpu); diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S index d73a59014900..596a285c0755 100644 --- a/arch/powerpc/lib/copyuser_64.S +++ b/arch/powerpc/lib/copyuser_64.S @@ -9,6 +9,14 @@ #include <asm/processor.h> #include <asm/ppc_asm.h> +#ifdef __BIG_ENDIAN__ +#define sLd sld /* Shift towards low-numbered address. */ +#define sHd srd /* Shift towards high-numbered address. */ +#else +#define sLd srd /* Shift towards low-numbered address. */ +#define sHd sld /* Shift towards high-numbered address. */ +#endif + .align 7 _GLOBAL(__copy_tofrom_user) BEGIN_FTR_SECTION @@ -118,10 +126,10 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) 24: ld r9,0(r4) /* 3+2n loads, 2+2n stores */ 25: ld r0,8(r4) - sld r6,r9,r10 + sLd r6,r9,r10 26: ldu r9,16(r4) - srd r7,r0,r11 - sld r8,r0,r10 + sHd r7,r0,r11 + sLd r8,r0,r10 or r7,r7,r6 blt cr6,79f 27: ld r0,8(r4) @@ -129,35 +137,35 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) 28: ld r0,0(r4) /* 4+2n loads, 3+2n stores */ 29: ldu r9,8(r4) - sld r8,r0,r10 + sLd r8,r0,r10 addi r3,r3,-8 blt cr6,5f 30: ld r0,8(r4) - srd r12,r9,r11 - sld r6,r9,r10 + sHd r12,r9,r11 + sLd r6,r9,r10 31: ldu r9,16(r4) or r12,r8,r12 - srd r7,r0,r11 - sld r8,r0,r10 + sHd r7,r0,r11 + sLd r8,r0,r10 addi r3,r3,16 beq cr6,78f 1: or r7,r7,r6 32: ld r0,8(r4) 76: std r12,8(r3) -2: srd r12,r9,r11 - sld r6,r9,r10 +2: sHd r12,r9,r11 + sLd r6,r9,r10 33: ldu r9,16(r4) or r12,r8,r12 77: stdu r7,16(r3) - srd r7,r0,r11 - sld r8,r0,r10 + sHd r7,r0,r11 + sLd r8,r0,r10 bdnz 1b 78: std r12,8(r3) or r7,r7,r6 79: std r7,16(r3) -5: srd r12,r9,r11 +5: sHd r12,r9,r11 or r12,r8,r12 80: std r12,24(r3) bne 6f @@ -165,23 +173,38 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) blr 6: cmpwi cr1,r5,8 addi r3,r3,32 - sld r9,r9,r10 + sLd r9,r9,r10 ble cr1,7f 34: ld r0,8(r4) - srd r7,r0,r11 + sHd r7,r0,r11 or r9,r7,r9 7: bf cr7*4+1,1f +#ifdef __BIG_ENDIAN__ rotldi r9,r9,32 +#endif 94: stw r9,0(r3) +#ifdef __LITTLE_ENDIAN__ + rotrdi r9,r9,32 +#endif addi r3,r3,4 1: bf cr7*4+2,2f +#ifdef __BIG_ENDIAN__ rotldi r9,r9,16 +#endif 95: sth r9,0(r3) +#ifdef __LITTLE_ENDIAN__ + rotrdi r9,r9,16 +#endif addi r3,r3,2 2: bf cr7*4+3,3f +#ifdef __BIG_ENDIAN__ rotldi r9,r9,8 +#endif 96: stb r9,0(r3) +#ifdef __LITTLE_ENDIAN__ + rotrdi r9,r9,8 +#endif 3: li r3,0 blr diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c index 02245cee7818..d7ddcee7feb8 100644 --- a/arch/powerpc/platforms/powernv/eeh-ioda.c +++ b/arch/powerpc/platforms/powernv/eeh-ioda.c @@ -36,7 +36,6 @@ #include "powernv.h" #include "pci.h" -static char *hub_diag = NULL; static int ioda_eeh_nb_init = 0; static int ioda_eeh_event(struct notifier_block *nb, @@ -140,15 +139,6 @@ static int ioda_eeh_post_init(struct pci_controller *hose) ioda_eeh_nb_init = 1; } - /* We needn't HUB diag-data on PHB3 */ - if (phb->type == PNV_PHB_IODA1 && !hub_diag) { - hub_diag = (char *)__get_free_page(GFP_KERNEL | __GFP_ZERO); - if (!hub_diag) { - pr_err("%s: Out of memory !\n", __func__); - return -ENOMEM; - } - } - #ifdef CONFIG_DEBUG_FS if (phb->dbgfs) { debugfs_create_file("err_injct_outbound", 0600, @@ -633,11 +623,10 @@ static void ioda_eeh_hub_diag_common(struct OpalIoP7IOCErrorData *data) static void ioda_eeh_hub_diag(struct pci_controller *hose) { struct pnv_phb *phb = hose->private_data; - struct OpalIoP7IOCErrorData *data; + struct OpalIoP7IOCErrorData *data = &phb->diag.hub_diag; long rc; - data = (struct OpalIoP7IOCErrorData *)ioda_eeh_hub_diag; - rc = opal_pci_get_hub_diag_data(phb->hub_id, data, PAGE_SIZE); + rc = opal_pci_get_hub_diag_data(phb->hub_id, data, sizeof(*data)); if (rc != OPAL_SUCCESS) { pr_warning("%s: Failed to get HUB#%llx diag-data (%ld)\n", __func__, phb->hub_id, rc); @@ -820,14 +809,15 @@ static void ioda_eeh_phb_diag(struct pci_controller *hose) struct OpalIoPhbErrorCommon *common; long rc; - common = (struct OpalIoPhbErrorCommon *)phb->diag.blob; - rc = opal_pci_get_phb_diag_data2(phb->opal_id, common, PAGE_SIZE); + rc = opal_pci_get_phb_diag_data2(phb->opal_id, phb->diag.blob, + PNV_PCI_DIAG_BUF_SIZE); if (rc != OPAL_SUCCESS) { pr_warning("%s: Failed to get diag-data for PHB#%x (%ld)\n", __func__, hose->global_number, rc); return; } + common = (struct OpalIoPhbErrorCommon *)phb->diag.blob; switch (common->ioType) { case OPAL_PHB_ERROR_DATA_TYPE_P7IOC: ioda_eeh_p7ioc_phb_diag(hose, common); diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c index e7e59e4f9892..79d83cad3d67 100644 --- a/arch/powerpc/platforms/powernv/opal-lpc.c +++ b/arch/powerpc/platforms/powernv/opal-lpc.c @@ -24,25 +24,25 @@ static int opal_lpc_chip_id = -1; static u8 opal_lpc_inb(unsigned long port) { int64_t rc; - uint32_t data; + __be32 data; if (opal_lpc_chip_id < 0 || port > 0xffff) return 0xff; rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 1); - return rc ? 0xff : data; + return rc ? 0xff : be32_to_cpu(data); } static __le16 __opal_lpc_inw(unsigned long port) { int64_t rc; - uint32_t data; + __be32 data; if (opal_lpc_chip_id < 0 || port > 0xfffe) return 0xffff; if (port & 1) return (__le16)opal_lpc_inb(port) << 8 | opal_lpc_inb(port + 1); rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 2); - return rc ? 0xffff : data; + return rc ? 0xffff : be32_to_cpu(data); } static u16 opal_lpc_inw(unsigned long port) { @@ -52,7 +52,7 @@ static u16 opal_lpc_inw(unsigned long port) static __le32 __opal_lpc_inl(unsigned long port) { int64_t rc; - uint32_t data; + __be32 data; if (opal_lpc_chip_id < 0 || port > 0xfffc) return 0xffffffff; @@ -62,7 +62,7 @@ static __le32 __opal_lpc_inl(unsigned long port) (__le32)opal_lpc_inb(port + 2) << 8 | opal_lpc_inb(port + 3); rc = opal_lpc_read(opal_lpc_chip_id, OPAL_LPC_IO, port, &data, 4); - return rc ? 0xffffffff : data; + return rc ? 0xffffffff : be32_to_cpu(data); } static u32 opal_lpc_inl(unsigned long port) diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c index 4d99a8fd55ac..4fbf276ac99e 100644 --- a/arch/powerpc/platforms/powernv/opal-xscom.c +++ b/arch/powerpc/platforms/powernv/opal-xscom.c @@ -96,9 +96,11 @@ static int opal_scom_read(scom_map_t map, u64 reg, u64 *value) { struct opal_scom_map *m = map; int64_t rc; + __be64 v; reg = opal_scom_unmangle(reg); - rc = opal_xscom_read(m->chip, m->addr + reg, (uint64_t *)__pa(value)); + rc = opal_xscom_read(m->chip, m->addr + reg, (__be64 *)__pa(&v)); + *value = be64_to_cpu(v); return opal_xscom_err_xlate(rc); } diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 084cdfa40682..2c6d173842b2 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -720,6 +720,7 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE; } iommu_init_table(tbl, phb->hose->node); + iommu_register_group(tbl, pci_domain_nr(pe->pbus), pe->pe_number); if (pe->pdev) set_iommu_table_base(&pe->pdev->dev, tbl); diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 911c24ef033e..1ed8d5f40f5a 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -172,11 +172,13 @@ struct pnv_phb { } ioda; }; - /* PHB status structure */ + /* PHB and hub status structure */ union { unsigned char blob[PNV_PCI_DIAG_BUF_SIZE]; struct OpalIoP7IOCPhbErrorData p7ioc; + struct OpalIoP7IOCErrorData hub_diag; } diag; + }; extern struct pci_ops pnv_pci_ops; diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c index e738007eae64..c9fecf09b8fa 100644 --- a/arch/powerpc/platforms/pseries/lparcfg.c +++ b/arch/powerpc/platforms/pseries/lparcfg.c @@ -157,7 +157,7 @@ static void parse_ppp_data(struct seq_file *m) { struct hvcall_ppp_data ppp_data; struct device_node *root; - const int *perf_level; + const __be32 *perf_level; int rc; rc = h_get_ppp(&ppp_data); @@ -201,7 +201,7 @@ static void parse_ppp_data(struct seq_file *m) perf_level = of_get_property(root, "ibm,partition-performance-parameters-level", NULL); - if (perf_level && (*perf_level >= 1)) { + if (perf_level && (be32_to_cpup(perf_level) >= 1)) { seq_printf(m, "physical_procs_allocated_to_virtualization=%d\n", ppp_data.phys_platform_procs); @@ -435,7 +435,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) int partition_potential_processors; int partition_active_processors; struct device_node *rtas_node; - const int *lrdrp = NULL; + const __be32 *lrdrp = NULL; rtas_node = of_find_node_by_path("/rtas"); if (rtas_node) @@ -444,7 +444,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) if (lrdrp == NULL) { partition_potential_processors = vdso_data->processorCount; } else { - partition_potential_processors = *(lrdrp + 4); + partition_potential_processors = be32_to_cpup(lrdrp + 4); } of_node_put(rtas_node); @@ -654,7 +654,7 @@ static int lparcfg_data(struct seq_file *m, void *v) const char *model = ""; const char *system_id = ""; const char *tmp; - const unsigned int *lp_index_ptr; + const __be32 *lp_index_ptr; unsigned int lp_index = 0; seq_printf(m, "%s %s\n", MODULE_NAME, MODULE_VERS); @@ -670,7 +670,7 @@ static int lparcfg_data(struct seq_file *m, void *v) lp_index_ptr = of_get_property(rootdn, "ibm,partition-no", NULL); if (lp_index_ptr) - lp_index = *lp_index_ptr; + lp_index = be32_to_cpup(lp_index_ptr); of_node_put(rootdn); } seq_printf(m, "serial_number=%s\n", system_id); diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index 6d2f0abce6fa..0c882e83c4ce 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -130,7 +130,8 @@ static int check_req(struct pci_dev *pdev, int nvec, char *prop_name) { struct device_node *dn; struct pci_dn *pdn; - const u32 *req_msi; + const __be32 *p; + u32 req_msi; pdn = pci_get_pdn(pdev); if (!pdn) @@ -138,19 +139,20 @@ static int check_req(struct pci_dev *pdev, int nvec, char *prop_name) dn = pdn->node; - req_msi = of_get_property(dn, prop_name, NULL); - if (!req_msi) { + p = of_get_property(dn, prop_name, NULL); + if (!p) { pr_debug("rtas_msi: No %s on %s\n", prop_name, dn->full_name); return -ENOENT; } - if (*req_msi < nvec) { + req_msi = be32_to_cpup(p); + if (req_msi < nvec) { pr_debug("rtas_msi: %s requests < %d MSIs\n", prop_name, nvec); - if (*req_msi == 0) /* Be paranoid */ + if (req_msi == 0) /* Be paranoid */ return -ENOSPC; - return *req_msi; + return req_msi; } return 0; @@ -171,7 +173,7 @@ static int check_req_msix(struct pci_dev *pdev, int nvec) static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total) { struct device_node *dn; - const u32 *p; + const __be32 *p; dn = of_node_get(pci_device_to_OF_node(dev)); while (dn) { @@ -179,7 +181,7 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total) if (p) { pr_debug("rtas_msi: found prop on dn %s\n", dn->full_name); - *total = *p; + *total = be32_to_cpup(p); return dn; } @@ -232,13 +234,13 @@ struct msi_counts { static void *count_non_bridge_devices(struct device_node *dn, void *data) { struct msi_counts *counts = data; - const u32 *p; + const __be32 *p; u32 class; pr_debug("rtas_msi: counting %s\n", dn->full_name); p = of_get_property(dn, "class-code", NULL); - class = p ? *p : 0; + class = p ? be32_to_cpup(p) : 0; if ((class >> 8) != PCI_CLASS_BRIDGE_PCI) counts->num_devices++; @@ -249,7 +251,7 @@ static void *count_non_bridge_devices(struct device_node *dn, void *data) static void *count_spare_msis(struct device_node *dn, void *data) { struct msi_counts *counts = data; - const u32 *p; + const __be32 *p; int req; if (dn == counts->requestor) @@ -260,11 +262,11 @@ static void *count_spare_msis(struct device_node *dn, void *data) req = 0; p = of_get_property(dn, "ibm,req#msi", NULL); if (p) - req = *p; + req = be32_to_cpup(p); p = of_get_property(dn, "ibm,req#msi-x", NULL); if (p) - req = max(req, (int)*p); + req = max(req, (int)be32_to_cpup(p)); } if (req < counts->quota) diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c index 7bfaf58d4664..d7096f2f7751 100644 --- a/arch/powerpc/platforms/pseries/nvram.c +++ b/arch/powerpc/platforms/pseries/nvram.c @@ -43,8 +43,8 @@ static char nvram_buf[NVRW_CNT]; /* assume this is in the first 4GB */ static DEFINE_SPINLOCK(nvram_lock); struct err_log_info { - int error_type; - unsigned int seq_num; + __be32 error_type; + __be32 seq_num; }; struct nvram_os_partition { @@ -79,9 +79,9 @@ static const char *pseries_nvram_os_partitions[] = { }; struct oops_log_info { - u16 version; - u16 report_length; - u64 timestamp; + __be16 version; + __be16 report_length; + __be64 timestamp; } __attribute__((packed)); static void oops_to_nvram(struct kmsg_dumper *dumper, @@ -291,8 +291,8 @@ int nvram_write_os_partition(struct nvram_os_partition *part, char * buff, length = part->size; } - info.error_type = err_type; - info.seq_num = error_log_cnt; + info.error_type = cpu_to_be32(err_type); + info.seq_num = cpu_to_be32(error_log_cnt); tmp_index = part->index; @@ -364,8 +364,8 @@ int nvram_read_partition(struct nvram_os_partition *part, char *buff, } if (part->os_partition) { - *error_log_cnt = info.seq_num; - *err_type = info.error_type; + *error_log_cnt = be32_to_cpu(info.seq_num); + *err_type = be32_to_cpu(info.error_type); } return 0; @@ -529,9 +529,9 @@ static int zip_oops(size_t text_len) pr_err("nvram: logging uncompressed oops/panic report\n"); return -1; } - oops_hdr->version = OOPS_HDR_VERSION; - oops_hdr->report_length = (u16) zipped_len; - oops_hdr->timestamp = get_seconds(); + oops_hdr->version = cpu_to_be16(OOPS_HDR_VERSION); + oops_hdr->report_length = cpu_to_be16(zipped_len); + oops_hdr->timestamp = cpu_to_be64(get_seconds()); return 0; } @@ -574,9 +574,9 @@ static int nvram_pstore_write(enum pstore_type_id type, clobbering_unread_rtas_event()) return -1; - oops_hdr->version = OOPS_HDR_VERSION; - oops_hdr->report_length = (u16) size; - oops_hdr->timestamp = get_seconds(); + oops_hdr->version = cpu_to_be16(OOPS_HDR_VERSION); + oops_hdr->report_length = cpu_to_be16(size); + oops_hdr->timestamp = cpu_to_be64(get_seconds()); if (compressed) err_type = ERR_TYPE_KERNEL_PANIC_GZ; @@ -670,16 +670,16 @@ static ssize_t nvram_pstore_read(u64 *id, enum pstore_type_id *type, size_t length, hdr_size; oops_hdr = (struct oops_log_info *)buff; - if (oops_hdr->version < OOPS_HDR_VERSION) { + if (be16_to_cpu(oops_hdr->version) < OOPS_HDR_VERSION) { /* Old format oops header had 2-byte record size */ hdr_size = sizeof(u16); - length = oops_hdr->version; + length = be16_to_cpu(oops_hdr->version); time->tv_sec = 0; time->tv_nsec = 0; } else { hdr_size = sizeof(*oops_hdr); - length = oops_hdr->report_length; - time->tv_sec = oops_hdr->timestamp; + length = be16_to_cpu(oops_hdr->report_length); + time->tv_sec = be64_to_cpu(oops_hdr->timestamp); time->tv_nsec = 0; } *buf = kmalloc(length, GFP_KERNEL); @@ -889,13 +889,13 @@ static void oops_to_nvram(struct kmsg_dumper *dumper, kmsg_dump_get_buffer(dumper, false, oops_data, oops_data_sz, &text_len); err_type = ERR_TYPE_KERNEL_PANIC; - oops_hdr->version = OOPS_HDR_VERSION; - oops_hdr->report_length = (u16) text_len; - oops_hdr->timestamp = get_seconds(); + oops_hdr->version = cpu_to_be16(OOPS_HDR_VERSION); + oops_hdr->report_length = cpu_to_be16(text_len); + oops_hdr->timestamp = cpu_to_be64(get_seconds()); } (void) nvram_write_os_partition(&oops_log_partition, oops_buf, - (int) (sizeof(*oops_hdr) + oops_hdr->report_length), err_type, + (int) (sizeof(*oops_hdr) + text_len), err_type, ++oops_count); spin_unlock_irqrestore(&lock, flags); diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index 5f93856cdf47..70670a2d9cf2 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -113,7 +113,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) { struct device_node *dn, *pdn; struct pci_bus *bus; - const uint32_t *pcie_link_speed_stats; + const __be32 *pcie_link_speed_stats; bus = bridge->bus; @@ -122,7 +122,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) return 0; for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) { - pcie_link_speed_stats = (const uint32_t *) of_get_property(pdn, + pcie_link_speed_stats = of_get_property(pdn, "ibm,pcie-link-speed-stats", NULL); if (pcie_link_speed_stats) break; @@ -135,7 +135,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) return 0; } - switch (pcie_link_speed_stats[0]) { + switch (be32_to_cpup(pcie_link_speed_stats)) { case 0x01: bus->max_bus_speed = PCIE_SPEED_2_5GT; break; @@ -147,7 +147,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) break; } - switch (pcie_link_speed_stats[1]) { + switch (be32_to_cpup(pcie_link_speed_stats)) { case 0x01: bus->cur_bus_speed = PCIE_SPEED_2_5GT; break; diff --git a/arch/powerpc/sysdev/ppc4xx_ocm.c b/arch/powerpc/sysdev/ppc4xx_ocm.c index b7c43453236d..85d9e37f5ccb 100644 --- a/arch/powerpc/sysdev/ppc4xx_ocm.c +++ b/arch/powerpc/sysdev/ppc4xx_ocm.c @@ -339,7 +339,7 @@ void *ppc4xx_ocm_alloc(phys_addr_t *phys, int size, int align, if (IS_ERR_VALUE(offset)) continue; - ocm_blk = kzalloc(sizeof(struct ocm_block *), GFP_KERNEL); + ocm_blk = kzalloc(sizeof(struct ocm_block), GFP_KERNEL); if (!ocm_blk) { printk(KERN_ERR "PPC4XX OCM: could not allocate ocm block"); rh_free(ocm_reg->rh, offset); diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 5877e71901b3..e9f312532526 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -135,7 +135,6 @@ config S390 select HAVE_SYSCALL_TRACEPOINTS select HAVE_UID16 if 32BIT select HAVE_VIRT_CPU_ACCOUNTING - select INIT_ALL_POSSIBLE select KTIME_SCALAR if 32BIT select MODULES_USE_ELF_RELA select OLD_SIGACTION @@ -347,14 +346,14 @@ config SMP Even if you don't know what to do here, say Y. config NR_CPUS - int "Maximum number of CPUs (2-64)" - range 2 64 + int "Maximum number of CPUs (2-256)" + range 2 256 depends on SMP default "32" if !64BIT default "64" if 64BIT help This allows you to specify the maximum number of CPUs which this - kernel will support. The maximum supported value is 64 and the + kernel will support. The maximum supported value is 256 and the minimum value which makes sense is 2. This is purely to save memory - each supported CPU adds diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index 30ef748bc161..2f390956c7c1 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -8,6 +8,7 @@ #include <linux/types.h> #include <asm/chpid.h> +#include <asm/cpu.h> #define SCLP_CHP_INFO_MASK_SIZE 32 @@ -37,7 +38,7 @@ struct sclp_cpu_info { unsigned int standby; unsigned int combined; int has_cpu_type; - struct sclp_cpu_entry cpu[255]; + struct sclp_cpu_entry cpu[MAX_CPU_ADDRESS + 1]; }; int sclp_get_cpu_info(struct sclp_cpu_info *info); diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index ac9bed8e103f..160779394096 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -31,6 +31,7 @@ extern void smp_yield(void); extern void smp_stop_cpu(void); extern void smp_cpu_set_polarization(int cpu, int val); extern int smp_cpu_get_polarization(int cpu); +extern void smp_fill_possible_mask(void); #else /* CONFIG_SMP */ @@ -50,6 +51,7 @@ static inline int smp_vcpu_scheduled(int cpu) { return 1; } static inline void smp_yield_cpu(int cpu) { } static inline void smp_yield(void) { } static inline void smp_stop_cpu(void) { } +static inline void smp_fill_possible_mask(void) { } #endif /* CONFIG_SMP */ diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 496116cd65ec..e4c99a183651 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -72,6 +72,7 @@ int main(void) /* constants used by the vdso */ DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME); DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC); + DEFINE(__CLOCK_THREAD_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID); DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); BLANK(); /* idle data offsets */ diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 4444875266ee..0f3d44ecbfc6 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -1023,6 +1023,7 @@ void __init setup_arch(char **cmdline_p) setup_vmcoreinfo(); setup_lowcore(); + smp_fill_possible_mask(); cpu_init(); s390_init_cpu_topology(); diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index dc4a53465060..958704798f4a 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -721,18 +721,14 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) return 0; } -static int __init setup_possible_cpus(char *s) -{ - int max, cpu; +static unsigned int setup_possible_cpus __initdata; - if (kstrtoint(s, 0, &max) < 0) - return 0; - init_cpu_possible(cpumask_of(0)); - for (cpu = 1; cpu < max && cpu < nr_cpu_ids; cpu++) - set_cpu_possible(cpu, true); +static int __init _setup_possible_cpus(char *s) +{ + get_option(&s, &setup_possible_cpus); return 0; } -early_param("possible_cpus", setup_possible_cpus); +early_param("possible_cpus", _setup_possible_cpus); #ifdef CONFIG_HOTPLUG_CPU @@ -775,6 +771,17 @@ void __noreturn cpu_die(void) #endif /* CONFIG_HOTPLUG_CPU */ +void __init smp_fill_possible_mask(void) +{ + unsigned int possible, cpu; + + possible = setup_possible_cpus; + if (!possible) + possible = MACHINE_IS_VM ? 64 : nr_cpu_ids; + for (cpu = 0; cpu < possible && cpu < nr_cpu_ids; cpu++) + set_cpu_possible(cpu, true); +} + void __init smp_prepare_cpus(unsigned int max_cpus) { /* request the 0x1201 emergency signal external interrupt */ diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index a84476f2a9bb..613649096783 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -125,7 +125,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore) psal[i] = 0x80000000; lowcore->paste[4] = (u32)(addr_t) psal; - psal[0] = 0x20000000; + psal[0] = 0x02000000; psal[2] = (u32)(addr_t) aste; *(unsigned long *) (aste + 2) = segment_table + _ASCE_TABLE_LENGTH + _ASCE_USER_BITS + _ASCE_TYPE_SEGMENT; diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index 5be8e472f57d..65fc3979c2f1 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S @@ -46,18 +46,13 @@ __kernel_clock_gettime: jnm 3f a %r0,__VDSO_TK_MULT(%r5) 3: alr %r0,%r2 - al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ - al %r1,__VDSO_XTIME_NSEC+4(%r5) - brc 12,4f - ahi %r0,1 -4: al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ + al %r0,__VDSO_WTOM_NSEC(%r5) al %r1,__VDSO_WTOM_NSEC+4(%r5) brc 12,5f ahi %r0,1 5: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ srdl %r0,0(%r2) /* >> tk->shift */ - l %r2,__VDSO_XTIME_SEC+4(%r5) - al %r2,__VDSO_WTOM_SEC+4(%r5) + l %r2,__VDSO_WTOM_SEC+4(%r5) cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ jne 1b basr %r5,0 diff --git a/arch/s390/kernel/vdso64/clock_getres.S b/arch/s390/kernel/vdso64/clock_getres.S index 176e1f75f9aa..34deba7c7ed1 100644 --- a/arch/s390/kernel/vdso64/clock_getres.S +++ b/arch/s390/kernel/vdso64/clock_getres.S @@ -23,7 +23,9 @@ __kernel_clock_getres: je 0f cghi %r2,__CLOCK_MONOTONIC je 0f - cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */ + cghi %r2,__CLOCK_THREAD_CPUTIME_ID + je 0f + cghi %r2,-2 /* Per-thread CPUCLOCK with PID=0, VIRT=1 */ jne 2f larl %r5,_vdso_data icm %r0,15,__LC_ECTG_OK(%r5) diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S index 0add1072ba30..91940ed33a4a 100644 --- a/arch/s390/kernel/vdso64/clock_gettime.S +++ b/arch/s390/kernel/vdso64/clock_gettime.S @@ -22,7 +22,9 @@ __kernel_clock_gettime: larl %r5,_vdso_data cghi %r2,__CLOCK_REALTIME je 4f - cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */ + cghi %r2,__CLOCK_THREAD_CPUTIME_ID + je 9f + cghi %r2,-2 /* Per-thread CPUCLOCK with PID=0, VIRT=1 */ je 9f cghi %r2,__CLOCK_MONOTONIC jne 12f @@ -35,13 +37,11 @@ __kernel_clock_gettime: jnz 0b stck 48(%r15) /* Store TOD clock */ lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ - alg %r0,__VDSO_WTOM_SEC(%r5) /* + wall_to_monotonic.sec */ + lg %r0,__VDSO_WTOM_SEC(%r5) lg %r1,48(%r15) sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ - alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ - alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ + alg %r1,__VDSO_WTOM_NSEC(%r5) srlg %r1,%r1,0(%r2) /* >> tk->shift */ clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ jne 0b diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index 800f064b0da7..069607209a30 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -75,6 +75,7 @@ void zpci_event_availability(void *data) if (!zdev || zdev->state == ZPCI_FN_STATE_CONFIGURED) break; zdev->state = ZPCI_FN_STATE_CONFIGURED; + zdev->fh = ccdf->fh; ret = zpci_enable_device(zdev); if (ret) break; @@ -101,6 +102,7 @@ void zpci_event_availability(void *data) if (pdev) pci_stop_and_remove_bus_device(pdev); + zdev->fh = ccdf->fh; zpci_disable_device(zdev); zdev->state = ZPCI_FN_STATE_STANDBY; break; diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c index 2a0a596ebf67..d77f2f6c7ff0 100644 --- a/arch/sh/kernel/sh_ksyms_32.c +++ b/arch/sh/kernel/sh_ksyms_32.c @@ -20,6 +20,11 @@ EXPORT_SYMBOL(csum_partial_copy_generic); EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(__clear_user); EXPORT_SYMBOL(empty_zero_page); +#ifdef CONFIG_FLATMEM +/* need in pfn_valid macro */ +EXPORT_SYMBOL(min_low_pfn); +EXPORT_SYMBOL(max_low_pfn); +#endif #define DECLARE_EXPORT(name) \ extern void name(void);EXPORT_SYMBOL(name) diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile index 7b95f29e3174..3baff31e58cf 100644 --- a/arch/sh/lib/Makefile +++ b/arch/sh/lib/Makefile @@ -6,7 +6,7 @@ lib-y = delay.o memmove.o memchr.o \ checksum.o strlen.o div64.o div64-generic.o # Extracted from libgcc -lib-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \ +obj-y += movmem.o ashldi3.o ashrdi3.o lshrdi3.o \ ashlsi3.o ashrsi3.o ashiftrt.o lshrsi3.o \ udiv_qrnnd.o diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 8358dc144959..0f9e94537eee 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -619,7 +619,7 @@ static inline unsigned long pte_present(pte_t pte) } #define pte_accessible pte_accessible -static inline unsigned long pte_accessible(pte_t a) +static inline unsigned long pte_accessible(struct mm_struct *mm, pte_t a) { return pte_val(a) & _PAGE_VALID; } @@ -847,7 +847,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, * SUN4V NOTE: _PAGE_VALID is the same value in both the SUN4U * and SUN4V pte layout, so this inline test is fine. */ - if (likely(mm != &init_mm) && pte_accessible(orig)) + if (likely(mm != &init_mm) && pte_accessible(mm, orig)) tlb_batch_add(mm, addr, ptep, orig, fullmm); } diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e903c71f7e69..0952ecd60eca 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -26,6 +26,7 @@ config X86 select HAVE_AOUT if X86_32 select HAVE_UNSTABLE_SCHED_CLOCK select ARCH_SUPPORTS_NUMA_BALANCING + select ARCH_SUPPORTS_INT128 if X86_64 select ARCH_WANTS_PROT_NUMA_PROT_NONE select HAVE_IDE select HAVE_OPROFILE diff --git a/arch/x86/Makefile b/arch/x86/Makefile index eda00f9be0cf..57d021507120 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -31,8 +31,8 @@ ifeq ($(CONFIG_X86_32),y) KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return - # Don't autogenerate SSE instructions - KBUILD_CFLAGS += -mno-sse + # Don't autogenerate MMX or SSE instructions + KBUILD_CFLAGS += -mno-mmx -mno-sse # Never want PIC in a 32-bit kernel, prevent breakage with GCC built # with nonstandard options @@ -60,8 +60,8 @@ else KBUILD_AFLAGS += -m64 KBUILD_CFLAGS += -m64 - # Don't autogenerate SSE instructions - KBUILD_CFLAGS += -mno-sse + # Don't autogenerate MMX or SSE instructions + KBUILD_CFLAGS += -mno-mmx -mno-sse # Use -mpreferred-stack-boundary=3 if supported. KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3) diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index dce69a256896..d9c11956fce0 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -53,18 +53,18 @@ $(obj)/cpustr.h: $(obj)/mkcpustr FORCE # How to compile the 16-bit code. Note we always compile for -march=i386, # that way we can complain to the user if the CPU is insufficient. -KBUILD_CFLAGS := $(USERINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ +KBUILD_CFLAGS := $(USERINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ \ -DDISABLE_BRANCH_PROFILING \ -Wall -Wstrict-prototypes \ -march=i386 -mregparm=3 \ -include $(srctree)/$(src)/code16gcc.h \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ + -mno-mmx -mno-sse \ $(call cc-option, -ffreestanding) \ $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -fno-stack-protector) \ $(call cc-option, -mpreferred-stack-boundary=2) -KBUILD_CFLAGS += $(call cc-option, -m32) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ GCOV_PROFILE := n diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index dcd90df10ab4..c8a6792e7842 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -13,6 +13,7 @@ KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING cflags-$(CONFIG_X86_32) := -march=i386 cflags-$(CONFIG_X86_64) := -mcmodel=small KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += -mno-mmx -mno-sse KBUILD_CFLAGS += $(call cc-option,-ffreestanding) KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 3d1999458709..bbc8b12fa443 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -452,9 +452,16 @@ static inline int pte_present(pte_t a) } #define pte_accessible pte_accessible -static inline int pte_accessible(pte_t a) +static inline bool pte_accessible(struct mm_struct *mm, pte_t a) { - return pte_flags(a) & _PAGE_PRESENT; + if (pte_flags(a) & _PAGE_PRESENT) + return true; + + if ((pte_flags(a) & (_PAGE_PROTNONE | _PAGE_NUMA)) && + mm_tlb_flush_pending(mm)) + return true; + + return false; } static inline int pte_hidden(pte_t pte) diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h index 8729723636fd..c8b051933b1b 100644 --- a/arch/x86/include/asm/preempt.h +++ b/arch/x86/include/asm/preempt.h @@ -8,6 +8,12 @@ DECLARE_PER_CPU(int, __preempt_count); /* + * We use the PREEMPT_NEED_RESCHED bit as an inverted NEED_RESCHED such + * that a decrement hitting 0 means we can and should reschedule. + */ +#define PREEMPT_ENABLED (0 + PREEMPT_NEED_RESCHED) + +/* * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users * that think a non-zero value indicates we cannot preempt. */ @@ -74,6 +80,11 @@ static __always_inline void __preempt_count_sub(int val) __this_cpu_add_4(__preempt_count, -val); } +/* + * Because we keep PREEMPT_NEED_RESCHED set when we do _not_ need to reschedule + * a decrement which hits zero means we have no preempt_count and should + * reschedule. + */ static __always_inline bool __preempt_count_dec_and_test(void) { GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e"); diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index dc1ec0dff939..ea04b342c026 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -387,7 +387,8 @@ static void init_intel(struct cpuinfo_x86 *c) set_cpu_cap(c, X86_FEATURE_PEBS); } - if (c->x86 == 6 && c->x86_model == 29 && cpu_has_clflush) + if (c->x86 == 6 && cpu_has_clflush && + (c->x86_model == 29 || c->x86_model == 46 || c->x86_model == 47)) set_cpu_cap(c, X86_FEATURE_CLFLUSH_MONITOR); #ifdef CONFIG_X86_64 diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index fd00bb29425d..c1a861829d81 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -262,11 +262,20 @@ struct cpu_hw_events { __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW) -#define EVENT_CONSTRAINT_END \ - EVENT_CONSTRAINT(0, 0, 0) +/* + * We define the end marker as having a weight of -1 + * to enable blacklisting of events using a counter bitmask + * of zero and thus a weight of zero. + * The end marker has a weight that cannot possibly be + * obtained from counting the bits in the bitmask. + */ +#define EVENT_CONSTRAINT_END { .weight = -1 } +/* + * Check for end marker with weight == -1 + */ #define for_each_event_constraint(e, c) \ - for ((e) = (c); (e)->weight; (e)++) + for ((e) = (c); (e)->weight != -1; (e)++) /* * Extra registers for specific events. diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 5439117d5c4c..1673940cf9c3 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -143,6 +143,8 @@ static inline int kvm_apic_id(struct kvm_lapic *apic) return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff; } +#define KVM_X2APIC_CID_BITS 0 + static void recalculate_apic_map(struct kvm *kvm) { struct kvm_apic_map *new, *old = NULL; @@ -180,7 +182,8 @@ static void recalculate_apic_map(struct kvm *kvm) if (apic_x2apic_mode(apic)) { new->ldr_bits = 32; new->cid_shift = 16; - new->cid_mask = new->lid_mask = 0xffff; + new->cid_mask = (1 << KVM_X2APIC_CID_BITS) - 1; + new->lid_mask = 0xffff; } else if (kvm_apic_sw_enabled(apic) && !new->cid_mask /* flat mode */ && kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_CLUSTER) { @@ -841,7 +844,8 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic) ASSERT(apic != NULL); /* if initial count is 0, current count should also be 0 */ - if (kvm_apic_get_reg(apic, APIC_TMICT) == 0) + if (kvm_apic_get_reg(apic, APIC_TMICT) == 0 || + apic->lapic_timer.period == 0) return 0; remaining = hrtimer_get_remaining(&apic->lapic_timer.timer); @@ -1346,6 +1350,10 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value) return; } + if (!kvm_vcpu_is_bsp(apic->vcpu)) + value &= ~MSR_IA32_APICBASE_BSP; + vcpu->arch.apic_base = value; + /* update jump label if enable bit changes */ if ((vcpu->arch.apic_base ^ value) & MSR_IA32_APICBASE_ENABLE) { if (value & MSR_IA32_APICBASE_ENABLE) @@ -1355,10 +1363,6 @@ void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value) recalculate_apic_map(vcpu->kvm); } - if (!kvm_vcpu_is_bsp(apic->vcpu)) - value &= ~MSR_IA32_APICBASE_BSP; - - vcpu->arch.apic_base = value; if ((old_value ^ value) & X2APIC_ENABLE) { if (value & X2APIC_ENABLE) { u32 id = kvm_apic_id(apic); @@ -1691,7 +1695,6 @@ static void apic_sync_pv_eoi_from_guest(struct kvm_vcpu *vcpu, void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) { u32 data; - void *vapic; if (test_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention)) apic_sync_pv_eoi_from_guest(vcpu, vcpu->arch.apic); @@ -1699,9 +1702,8 @@ void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention)) return; - vapic = kmap_atomic(vcpu->arch.apic->vapic_page); - data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)); - kunmap_atomic(vapic); + kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); apic_set_tpr(vcpu->arch.apic, data & 0xff); } @@ -1737,7 +1739,6 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu) u32 data, tpr; int max_irr, max_isr; struct kvm_lapic *apic = vcpu->arch.apic; - void *vapic; apic_sync_pv_eoi_to_guest(vcpu, apic); @@ -1753,18 +1754,24 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu) max_isr = 0; data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24); - vapic = kmap_atomic(vcpu->arch.apic->vapic_page); - *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data; - kunmap_atomic(vapic); + kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data, + sizeof(u32)); } -void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) +int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) { - vcpu->arch.apic->vapic_addr = vapic_addr; - if (vapic_addr) + if (vapic_addr) { + if (kvm_gfn_to_hva_cache_init(vcpu->kvm, + &vcpu->arch.apic->vapic_cache, + vapic_addr, sizeof(u32))) + return -EINVAL; __set_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); - else + } else { __clear_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); + } + + vcpu->arch.apic->vapic_addr = vapic_addr; + return 0; } int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data) diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index c730ac9fe801..c8b0d0d2da5c 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -34,7 +34,7 @@ struct kvm_lapic { */ void *regs; gpa_t vapic_addr; - struct page *vapic_page; + struct gfn_to_hva_cache vapic_cache; unsigned long pending_events; unsigned int sipi_vector; }; @@ -76,7 +76,7 @@ void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data); void kvm_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset); void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector); -void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr); +int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr); void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu); void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index b2fe1c252f35..da7837e1349d 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -8283,8 +8283,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu, vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK); kvm_set_cr4(vcpu, vmcs12->host_cr4); - if (nested_cpu_has_ept(vmcs12)) - nested_ept_uninit_mmu_context(vcpu); + nested_ept_uninit_mmu_context(vcpu); kvm_set_cr3(vcpu, vmcs12->host_cr3); kvm_mmu_reset_context(vcpu); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 21ef1ba184ae..5d004da1e35d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3214,8 +3214,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&va, argp, sizeof va)) goto out; - r = 0; - kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr); + r = kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr); break; } case KVM_X86_SETUP_MCE: { @@ -5739,36 +5738,6 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu) !kvm_event_needs_reinjection(vcpu); } -static int vapic_enter(struct kvm_vcpu *vcpu) -{ - struct kvm_lapic *apic = vcpu->arch.apic; - struct page *page; - - if (!apic || !apic->vapic_addr) - return 0; - - page = gfn_to_page(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); - if (is_error_page(page)) - return -EFAULT; - - vcpu->arch.apic->vapic_page = page; - return 0; -} - -static void vapic_exit(struct kvm_vcpu *vcpu) -{ - struct kvm_lapic *apic = vcpu->arch.apic; - int idx; - - if (!apic || !apic->vapic_addr) - return; - - idx = srcu_read_lock(&vcpu->kvm->srcu); - kvm_release_page_dirty(apic->vapic_page); - mark_page_dirty(vcpu->kvm, apic->vapic_addr >> PAGE_SHIFT); - srcu_read_unlock(&vcpu->kvm->srcu, idx); -} - static void update_cr8_intercept(struct kvm_vcpu *vcpu) { int max_irr, tpr; @@ -6069,11 +6038,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) struct kvm *kvm = vcpu->kvm; vcpu->srcu_idx = srcu_read_lock(&kvm->srcu); - r = vapic_enter(vcpu); - if (r) { - srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - return r; - } r = 1; while (r > 0) { @@ -6132,8 +6096,6 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - vapic_exit(vcpu); - return r; } diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index dd74e46828c0..0596e8e0cc19 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -83,6 +83,12 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr, pte_t pte = gup_get_pte(ptep); struct page *page; + /* Similar to the PMD case, NUMA hinting must take slow path */ + if (pte_numa(pte)) { + pte_unmap(ptep); + return 0; + } + if ((pte_flags(pte) & (mask | _PAGE_SPECIAL)) != mask) { pte_unmap(ptep); return 0; @@ -167,6 +173,13 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end, if (pmd_none(pmd) || pmd_trans_splitting(pmd)) return 0; if (unlikely(pmd_large(pmd))) { + /* + * NUMA hinting faults need to be handled in the GUP + * slowpath for accounting purposes and so that they + * can be serialised against THP migration. + */ + if (pmd_numa(pmd)) + return 0; if (!gup_huge_pmd(pmd, addr, next, write, pages, nr)) return 0; } else { diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 92c02344a060..cceb813044ef 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -690,13 +690,6 @@ void __init efi_init(void) set_bit(EFI_MEMMAP, &x86_efi_facility); -#ifdef CONFIG_X86_32 - if (efi_is_native()) { - x86_platform.get_wallclock = efi_get_time; - x86_platform.set_wallclock = efi_set_rtc_mmss; - } -#endif - #if EFI_DEBUG print_efi_memmap(); #endif diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c index 0f92173a12b6..efe4d7220397 100644 --- a/arch/x86/platform/uv/tlb_uv.c +++ b/arch/x86/platform/uv/tlb_uv.c @@ -1070,12 +1070,13 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, unsigned long status; bcp = &per_cpu(bau_control, cpu); - stat = bcp->statp; - stat->s_enters++; if (bcp->nobau) return cpumask; + stat = bcp->statp; + stat->s_enters++; + if (bcp->busy) { descriptor_status = read_lmmr(UVH_LB_BAU_SB_ACTIVATION_STATUS_0); diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 88692871823f..9cac82588cbc 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -73,9 +73,10 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ -D_WAKEUP \ -march=i386 -mregparm=3 \ -include $(srctree)/$(src)/../../boot/code16gcc.h \ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \ + -mno-mmx -mno-sse \ $(call cc-option, -ffreestanding) \ $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -fno-stack-protector) \ $(call cc-option, -mpreferred-stack-boundary=2) KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ |