diff --git a/Documentation/filesystems/caching/backend-api.txt b/Documentation/filesystems/caching/backend-api.txt index 382d52cdaf2d..d78bab9622c6 100644 --- a/Documentation/filesystems/caching/backend-api.txt +++ b/Documentation/filesystems/caching/backend-api.txt @@ -308,6 +308,18 @@ performed on the denizens of the cache. These are held in a structure of type: obtained by calling object->cookie->def->get_aux()/get_attr(). + (*) Invalidate data object [mandatory]: + + int (*invalidate_object)(struct fscache_operation *op) + + This is called to invalidate a data object (as pointed to by op->object). + All the data stored for this object should be discarded and an + attr_changed operation should be performed. The caller will follow up + with an object update operation. + + fscache_op_complete() must be called on op before returning. + + (*) Discard object [mandatory]: void (*drop_object)(struct fscache_object *object) @@ -419,7 +431,10 @@ performed on the denizens of the cache. These are held in a structure of type: If an I/O error occurs, fscache_io_error() should be called and -ENOBUFS returned if possible or fscache_end_io() called with a suitable error - code.. + code. + + fscache_put_retrieval() should be called after a page or pages are dealt + with. This will complete the operation when all pages are dealt with. (*) Request pages be read from cache [mandatory]: @@ -526,6 +541,27 @@ FS-Cache provides some utilities that a cache backend may make use of: error value should be 0 if successful and an error otherwise. + (*) Record that one or more pages being retrieved or allocated have been dealt + with: + + void fscache_retrieval_complete(struct fscache_retrieval *op, + int n_pages); + + This is called to record the fact that one or more pages have been dealt + with and are no longer the concern of this operation. When the number of + pages remaining in the operation reaches 0, the operation will be + completed. + + + (*) Record operation completion: + + void fscache_op_complete(struct fscache_operation *op); + + This is called to record the completion of an operation. This deducts + this operation from the parent object's run state, potentially permitting + one or more pending operations to start running. + + (*) Set highest store limit: void fscache_set_store_limit(struct fscache_object *object, diff --git a/Documentation/filesystems/caching/netfs-api.txt b/Documentation/filesystems/caching/netfs-api.txt index 7cc6bf2871eb..97e6c0ecc5ef 100644 --- a/Documentation/filesystems/caching/netfs-api.txt +++ b/Documentation/filesystems/caching/netfs-api.txt @@ -35,8 +35,9 @@ This document contains the following sections: (12) Index and data file update (13) Miscellaneous cookie operations (14) Cookie unregistration - (15) Index and data file invalidation - (16) FS-Cache specific page flags. + (15) Index invalidation + (16) Data file invalidation + (17) FS-Cache specific page flags. ============================= @@ -767,13 +768,42 @@ the cookies for "child" indices, objects and pages have been relinquished first. -================================ -INDEX AND DATA FILE INVALIDATION -================================ +================== +INDEX INVALIDATION +================== -There is no direct way to invalidate an index subtree or a data file. To do -this, the caller should relinquish and retire the cookie they have, and then -acquire a new one. +There is no direct way to invalidate an index subtree. To do this, the caller +should relinquish and retire the cookie they have, and then acquire a new one. + + +====================== +DATA FILE INVALIDATION +====================== + +Sometimes it will be necessary to invalidate an object that contains data. +Typically this will be necessary when the server tells the netfs of a foreign +change - at which point the netfs has to throw away all the state it had for an +inode and reload from the server. + +To indicate that a cache object should be invalidated, the following function +can be called: + + void fscache_invalidate(struct fscache_cookie *cookie); + +This can be called with spinlocks held as it defers the work to a thread pool. +All extant storage, retrieval and attribute change ops at this point are +cancelled and discarded. Some future operations will be rejected until the +cache has had a chance to insert a barrier in the operations queue. After +that, operations will be queued again behind the invalidation operation. + +The invalidation operation will perform an attribute change operation and an +auxiliary data update operation as it is very likely these will have changed. + +Using the following function, the netfs can wait for the invalidation operation +to have reached a point at which it can start submitting ordinary operations +once again: + + void fscache_wait_on_invalidate(struct fscache_cookie *cookie); =========================== diff --git a/Documentation/filesystems/caching/object.txt b/Documentation/filesystems/caching/object.txt index 58313348da87..100ff41127e4 100644 --- a/Documentation/filesystems/caching/object.txt +++ b/Documentation/filesystems/caching/object.txt @@ -216,7 +216,14 @@ servicing netfs requests: The normal running state. In this state, requests the netfs makes will be passed on to the cache. - (6) State FSCACHE_OBJECT_UPDATING. + (6) State FSCACHE_OBJECT_INVALIDATING. + + The object is undergoing invalidation. When the state comes here, it + discards all pending read, write and attribute change operations as it is + going to clear out the cache entirely and reinitialise it. It will then + continue to the FSCACHE_OBJECT_UPDATING state. + + (7) State FSCACHE_OBJECT_UPDATING. The state machine comes here to update the object in the cache from the netfs's records. This involves updating the auxiliary data that is used @@ -225,13 +232,13 @@ servicing netfs requests: And there are terminal states in which an object cleans itself up, deallocates memory and potentially deletes stuff from disk: - (7) State FSCACHE_OBJECT_LC_DYING. + (8) State FSCACHE_OBJECT_LC_DYING. The object comes here if it is dying because of a lookup or creation error. This would be due to a disk error or system error of some sort. Temporary data is cleaned up, and the parent is released. - (8) State FSCACHE_OBJECT_DYING. + (9) State FSCACHE_OBJECT_DYING. The object comes here if it is dying due to an error, because its parent cookie has been relinquished by the netfs or because the cache is being @@ -241,27 +248,27 @@ memory and potentially deletes stuff from disk: can destroy themselves. This object waits for all its children to go away before advancing to the next state. - (9) State FSCACHE_OBJECT_ABORT_INIT. +(10) State FSCACHE_OBJECT_ABORT_INIT. The object comes to this state if it was waiting on its parent in FSCACHE_OBJECT_INIT, but its parent died. The object will destroy itself so that the parent may proceed from the FSCACHE_OBJECT_DYING state. -(10) State FSCACHE_OBJECT_RELEASING. -(11) State FSCACHE_OBJECT_RECYCLING. +(11) State FSCACHE_OBJECT_RELEASING. +(12) State FSCACHE_OBJECT_RECYCLING. The object comes to one of these two states when dying once it is rid of all its children, if it is dying because the netfs relinquished its cookie. In the first state, the cached data is expected to persist, and in the second it will be deleted. -(12) State FSCACHE_OBJECT_WITHDRAWING. +(13) State FSCACHE_OBJECT_WITHDRAWING. The object transits to this state if the cache decides it wants to withdraw the object from service, perhaps to make space, but also due to error or just because the whole cache is being withdrawn. -(13) State FSCACHE_OBJECT_DEAD. +(14) State FSCACHE_OBJECT_DEAD. The object transits to this state when the in-memory object record is ready to be deleted. The object processor shouldn't ever see an object in diff --git a/Documentation/filesystems/caching/operations.txt b/Documentation/filesystems/caching/operations.txt index b6b070c57cbf..bee2a5f93d60 100644 --- a/Documentation/filesystems/caching/operations.txt +++ b/Documentation/filesystems/caching/operations.txt @@ -174,7 +174,7 @@ Operations are used through the following procedure: necessary (the object might have died whilst the thread was waiting). When it has finished doing its processing, it should call - fscache_put_operation() on it. + fscache_op_complete() and fscache_put_operation() on it. (4) The operation holds an effective lock upon the object, preventing other exclusive ops conflicting until it is released. The operation can be diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 87850d86c559..8386aadc0a82 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -209,3 +209,13 @@ doesn't use CPU cycles. Trip points must be set properly before switching to automatic fan speed control mode. The driver will perform basic integrity checks before actually switching to automatic control mode. + + +Temperature offset attributes +----------------------------- + +The driver supports temp[1-3]_offset sysfs attributes to adjust the reported +temperature for thermal diodes or diode-connected thermal transistors. +If a temperature sensor is configured for thermistors, the attribute values +are ignored. If the thermal sensor type is Intel PECI, the temperature offset +must be programmed to the critical CPU temperature. diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 0f441740c22a..d077ef8426df 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -107,6 +107,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \ omap3-evm.dtb \ omap3-tobi.dtb \ omap4-panda.dtb \ + omap4-panda-a4.dtb \ omap4-panda-es.dtb \ omap4-var-som.dtb \ omap4-sdp.dtb \ @@ -131,8 +132,8 @@ dtb-$(CONFIG_ARCH_SPEAR3XX)+= spear300-evb.dtb \ spear320-evb.dtb \ spear320-hmi.dtb dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb -dtb-$(CONFIG_ARCH_SUNXI) += sun4i-cubieboard.dtb \ - sun5i-olinuxino.dtb +dtb-$(CONFIG_ARCH_SUNXI) += sun4i-a10-cubieboard.dtb \ + sun5i-a13-olinuxino.dtb dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \ tegra20-medcom-wide.dtb \ tegra20-paz00.dtb \ diff --git a/arch/arm/boot/dts/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi index 8e6251f1f7a3..32ec62cf5385 100644 --- a/arch/arm/boot/dts/at91sam9263.dtsi +++ b/arch/arm/boot/dts/at91sam9263.dtsi @@ -368,14 +368,14 @@ compatible = "atmel,at91rm9200-ssc"; reg = <0xfff98000 0x4000>; interrupts = <16 4 5>; - status = "disable"; + status = "disabled"; }; ssc1: ssc@fff9c000 { compatible = "atmel,at91rm9200-ssc"; reg = <0xfff9c000 0x4000>; interrupts = <17 4 5>; - status = "disable"; + status = "disabled"; }; macb0: ethernet@fffbc000 { diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi index fa1ae0c5479c..231858ffd850 100644 --- a/arch/arm/boot/dts/at91sam9g45.dtsi +++ b/arch/arm/boot/dts/at91sam9g45.dtsi @@ -425,14 +425,14 @@ compatible = "atmel,at91sam9g45-ssc"; reg = <0xfff9c000 0x4000>; interrupts = <16 4 5>; - status = "disable"; + status = "disabled"; }; ssc1: ssc@fffa0000 { compatible = "atmel,at91sam9g45-ssc"; reg = <0xfffa0000 0x4000>; interrupts = <17 4 5>; - status = "disable"; + status = "disabled"; }; adc0: adc@fffb0000 { diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 617ede541ca2..40ac3a4eb1ab 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -92,7 +92,7 @@ compatible = "atmel,at91sam9g45-ssc"; reg = <0xf0010000 0x4000>; interrupts = <28 4 5>; - status = "disable"; + status = "disabled"; }; tcb0: timer@f8008000 { diff --git a/arch/arm/boot/dts/imx27-3ds.dts b/arch/arm/boot/dts/imx27-3ds.dts index b01c0d745fc5..fa04c7b18bcb 100644 --- a/arch/arm/boot/dts/imx27-3ds.dts +++ b/arch/arm/boot/dts/imx27-3ds.dts @@ -21,17 +21,17 @@ }; soc { - aipi@10000000 { /* aipi */ - + aipi@10000000 { /* aipi1 */ uart1: serial@1000a000 { fsl,uart-has-rtscts; status = "okay"; }; + }; - fec@1002b000 { + aipi@10020000 { /* aipi2 */ + ethernet@1002b000 { status = "okay"; }; }; }; - }; diff --git a/arch/arm/boot/dts/imx27-phytec-phycore.dts b/arch/arm/boot/dts/imx27-phytec-phycore.dts index af50469e34b2..53b0ec0c228e 100644 --- a/arch/arm/boot/dts/imx27-phytec-phycore.dts +++ b/arch/arm/boot/dts/imx27-phytec-phycore.dts @@ -21,8 +21,7 @@ }; soc { - aipi@10000000 { /* aipi */ - + aipi@10000000 { /* aipi1 */ serial@1000a000 { fsl,uart-has-rtscts; status = "okay"; @@ -38,10 +37,6 @@ status = "okay"; }; - ethernet@1002b000 { - status = "okay"; - }; - i2c@1001d000 { clock-frequency = <400000>; status = "okay"; @@ -60,6 +55,12 @@ }; }; }; + + aipi@10020000 { /* aipi2 */ + ethernet@1002b000 { + status = "okay"; + }; + }; }; nor_flash@c0000000 { diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi index b8d3905915ac..5a82cb5707a8 100644 --- a/arch/arm/boot/dts/imx27.dtsi +++ b/arch/arm/boot/dts/imx27.dtsi @@ -55,7 +55,7 @@ compatible = "fsl,aipi-bus", "simple-bus"; #address-cells = <1>; #size-cells = <1>; - reg = <0x10000000 0x10000000>; + reg = <0x10000000 0x20000>; ranges; wdog: wdog@10002000 { @@ -211,6 +211,15 @@ status = "disabled"; }; + }; + + aipi@10020000 { /* AIPI2 */ + compatible = "fsl,aipi-bus", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x10020000 0x20000>; + ranges; + fec: ethernet@1002b000 { compatible = "fsl,imx27-fec"; reg = <0x1002b000 0x4000>; diff --git a/arch/arm/boot/dts/omap2420-h4.dts b/arch/arm/boot/dts/omap2420-h4.dts index 77b84e17c477..9b0d07746cba 100644 --- a/arch/arm/boot/dts/omap2420-h4.dts +++ b/arch/arm/boot/dts/omap2420-h4.dts @@ -15,6 +15,6 @@ memory { device_type = "memory"; - reg = <0x80000000 0x84000000>; /* 64 MB */ + reg = <0x80000000 0x4000000>; /* 64 MB */ }; }; diff --git a/arch/arm/boot/dts/sun4i-cubieboard.dts b/arch/arm/boot/dts/sun4i-cubieboard.dts index f4ca126ad994..5cab82540437 100644 --- a/arch/arm/boot/dts/sun4i-cubieboard.dts +++ b/arch/arm/boot/dts/sun4i-cubieboard.dts @@ -11,11 +11,11 @@ */ /dts-v1/; -/include/ "sun4i.dtsi" +/include/ "sun4i-a10.dtsi" / { model = "Cubietech Cubieboard"; - compatible = "cubietech,cubieboard", "allwinner,sun4i"; + compatible = "cubietech,a10-cubieboard", "allwinner,sun4i-a10"; aliases { serial0 = &uart0; diff --git a/arch/arm/boot/dts/sun5i-olinuxino.dts b/arch/arm/boot/dts/sun5i-olinuxino.dts index d6ff889a5d87..498a091a4ea2 100644 --- a/arch/arm/boot/dts/sun5i-olinuxino.dts +++ b/arch/arm/boot/dts/sun5i-olinuxino.dts @@ -12,11 +12,11 @@ */ /dts-v1/; -/include/ "sun5i.dtsi" +/include/ "sun5i-a13.dtsi" / { model = "Olimex A13-Olinuxino"; - compatible = "olimex,a13-olinuxino", "allwinner,sun5i"; + compatible = "olimex,a13-olinuxino", "allwinner,sun5i-a13"; chosen { bootargs = "earlyprintk console=ttyS0,115200"; diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 7211772edd9d..0299915575a8 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include diff --git a/arch/arm/mach-ep93xx/include/mach/uncompress.h b/arch/arm/mach-ep93xx/include/mach/uncompress.h index 16026c2b1c8c..d64274fc5760 100644 --- a/arch/arm/mach-ep93xx/include/mach/uncompress.h +++ b/arch/arm/mach-ep93xx/include/mach/uncompress.h @@ -47,13 +47,9 @@ static void __raw_writel(unsigned int value, unsigned int ptr) static inline void putc(int c) { - int i; - - for (i = 0; i < 1000; i++) { - /* Transmit fifo not full? */ - if (!(__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF)) - break; - } + /* Transmit fifo not full? */ + while (__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF) + ; __raw_writeb(c, PHYS_UART_DATA); } diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index dac146df79ac..04744f9c120f 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -25,7 +25,7 @@ void exynos_init_late(void); #ifdef CONFIG_PM_GENERIC_DOMAINS int exynos_pm_late_initcall(void); #else -static int exynos_pm_late_initcall(void) { return 0; } +static inline int exynos_pm_late_initcall(void) { return 0; } #endif #ifdef CONFIG_ARCH_EXYNOS4 diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index e8c0473c7568..579023f59dc1 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -319,6 +319,7 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, unsigned long rate_ckih1, unsigned long rate_ckih2) { int i; + u32 val; struct device_node *np; clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX51_DPLL1_BASE); @@ -390,6 +391,21 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, imx_print_silicon_rev("i.MX51", mx51_revision()); clk_disable_unprepare(clk[iim_gate]); + /* + * Reference Manual says: Functionality of CCDR[18] and CLPCR[23] is no + * longer supported. Set to one for better power saving. + * + * The effect of not setting these bits is that MIPI clocks can't be + * enabled without the IPU clock being enabled aswell. + */ + val = readl(MXC_CCM_CCDR); + val |= 1 << 18; + writel(val, MXC_CCM_CCDR); + + val = readl(MXC_CCM_CLPCR); + val |= 1 << 23; + writel(val, MXC_CCM_CLPCR); + return 0; } diff --git a/arch/arm/plat-mxc/devices/platform-mx2-emma.c b/arch/arm/mach-imx/devices/platform-mx2-emma.c similarity index 94% rename from arch/arm/plat-mxc/devices/platform-mx2-emma.c rename to arch/arm/mach-imx/devices/platform-mx2-emma.c index 508404ddd4ea..11bd01d402f2 100644 --- a/arch/arm/plat-mxc/devices/platform-mx2-emma.c +++ b/arch/arm/mach-imx/devices/platform-mx2-emma.c @@ -6,8 +6,8 @@ * the terms of the GNU General Public License version 2 as published by the * Free Software Foundation. */ -#include -#include +#include "../hardware.h" +#include "devices-common.h" #define imx_mx2_emmaprp_data_entry_single(soc) \ { \ diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index be0f62bf9037..41b581fd0213 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -26,6 +26,8 @@ config SOC_HAS_OMAP2_SDRC config SOC_HAS_REALTIME_COUNTER bool "Real time free running counter" + depends on SOC_OMAP5 + default y config ARCH_OMAP2 bool "TI OMAP2" @@ -79,7 +81,6 @@ config SOC_OMAP5 select ARM_GIC select CPU_V7 select HAVE_SMP - select SOC_HAS_REALTIME_COUNTER select COMMON_CLK comment "OMAP Core Type" diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 7b201546834d..bb73afc9ac17 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -157,6 +157,7 @@ static struct omap_dss_device sdp3430_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = -1, }; static struct omap_dss_device sdp3430_dvi_device = { diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index 4be58fd071f6..f81a303b87ff 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -208,6 +208,7 @@ static struct omap_dss_device am3517_evm_tv_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = -1, }; static struct omap_dss_device am3517_evm_dvi_device = { diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index c8e37dc00892..b3102c2f4a3c 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -241,6 +241,7 @@ static struct omap_dss_device cm_t35_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = CM_T35_DVI_EN_GPIO, + .i2c_bus_num = -1, }; static struct omap_dss_device cm_t35_dvi_device = { diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c index 7667eb749522..12865af25d3a 100644 --- a/arch/arm/mach-omap2/board-devkit8000.c +++ b/arch/arm/mach-omap2/board-devkit8000.c @@ -141,6 +141,7 @@ static struct omap_dss_device devkit8000_lcd_device = { static struct tfp410_platform_data dvi_panel = { .power_down_gpio = -1, + .i2c_bus_num = 1, }; static struct omap_dss_device devkit8000_dvi_device = { diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c index 9a3878ec2256..3be1311f9e33 100644 --- a/arch/arm/mach-omap2/board-h4.c +++ b/arch/arm/mach-omap2/board-h4.c @@ -27,14 +27,12 @@ #include #include #include +#include #include #include #include -#include -#include - #include