diff options
Diffstat (limited to 'include/linux')
78 files changed, 1646 insertions, 367 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index c5eaf2f80a4c..94afcb2c384c 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -85,6 +85,8 @@ static inline const char *acpi_dev_name(struct acpi_device *adev) return dev_name(&adev->dev); } +struct device *acpi_get_first_physical_node(struct acpi_device *adev); + enum acpi_irq_model_id { ACPI_IRQ_MODEL_PIC = 0, ACPI_IRQ_MODEL_IOAPIC, @@ -267,12 +269,18 @@ static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id) return phys_id == PHYS_CPUID_INVALID; } +/* Validate the processor object's proc_id */ +bool acpi_processor_validate_proc_id(int proc_id); + #ifdef CONFIG_ACPI_HOTPLUG_CPU /* Arch dependent functions for cpu hotplug support */ int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu); int acpi_unmap_cpu(int cpu); +int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +void acpi_set_processor_mapping(void); + #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); #endif @@ -634,6 +642,11 @@ static inline const char *acpi_dev_name(struct acpi_device *adev) return NULL; } +static inline struct device *acpi_get_first_physical_node(struct acpi_device *adev) +{ + return NULL; +} + static inline void acpi_early_init(void) { } static inline void acpi_subsystem_init(void) { } @@ -751,6 +764,12 @@ static inline int acpi_reconfig_notifier_unregister(struct notifier_block *nb) #endif /* !CONFIG_ACPI */ +#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +int acpi_ioapic_add(acpi_handle root); +#else +static inline int acpi_ioapic_add(acpi_handle root) { return 0; } +#endif + #ifdef CONFIG_ACPI void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, u32 pm1a_ctrl, u32 pm1b_ctrl)); @@ -1074,4 +1093,16 @@ void acpi_table_upgrade(void); static inline void acpi_table_upgrade(void) { } #endif +#if defined(CONFIG_ACPI) && defined(CONFIG_ACPI_WATCHDOG) +extern bool acpi_has_watchdog(void); +#else +static inline bool acpi_has_watchdog(void) { return false; } +#endif + +#ifdef CONFIG_ACPI_SPCR_TABLE +int parse_spcr(bool earlycon); +#else +static inline int parse_spcr(bool earlycon) { return 0; } +#endif + #endif /*_LINUX_ACPI_H*/ diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h new file mode 100644 index 000000000000..0e32dac8fd03 --- /dev/null +++ b/include/linux/acpi_iort.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2016, Semihalf + * Author: Tomasz Nowicki <tn@semihalf.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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 __ACPI_IORT_H__ +#define __ACPI_IORT_H__ + +#include <linux/acpi.h> +#include <linux/fwnode.h> +#include <linux/irqdomain.h> + +int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node); +void iort_deregister_domain_token(int trans_id); +struct fwnode_handle *iort_find_domain_token(int trans_id); +#ifdef CONFIG_ACPI_IORT +void acpi_iort_init(void); +u32 iort_msi_map_rid(struct device *dev, u32 req_id); +struct irq_domain *iort_get_device_domain(struct device *dev, u32 req_id); +#else +static inline void acpi_iort_init(void) { } +static inline u32 iort_msi_map_rid(struct device *dev, u32 req_id) +{ return req_id; } +static inline struct irq_domain *iort_get_device_domain(struct device *dev, + u32 req_id) +{ return NULL; } +#endif + +#endif /* __ACPI_IORT_H__ */ diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index 3d8dcdd1aeae..d143c13bed26 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -53,8 +53,14 @@ enum amba_vendor { AMBA_VENDOR_ST = 0x80, AMBA_VENDOR_QCOM = 0x51, AMBA_VENDOR_LSI = 0xb6, + AMBA_VENDOR_LINUX = 0xfe, /* This value is not official */ }; +/* This is used to generate pseudo-ID for AMBA device */ +#define AMBA_LINUX_ID(conf, rev, part) \ + (((conf) & 0xff) << 24 | ((rev) & 0xf) << 20 | \ + AMBA_VENDOR_LINUX << 12 | ((part) & 0xfff)) + extern struct bus_type amba_bustype; #define to_amba_device(d) container_of(d, struct amba_device, dev) diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h index d76a19ba2cff..ad0965e21a5e 100644 --- a/include/linux/amba/serial.h +++ b/include/linux/amba/serial.h @@ -104,6 +104,15 @@ #define UART01x_FR_CTS 0x001 #define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY) +/* + * Some bits of Flag Register on ZTE device have different position from + * standard ones. + */ +#define ZX_UART01x_FR_BUSY 0x100 +#define ZX_UART01x_FR_DSR 0x008 +#define ZX_UART01x_FR_CTS 0x002 +#define ZX_UART011_FR_RI 0x001 + #define UART011_CR_CTSEN 0x8000 /* CTS hardware flow control */ #define UART011_CR_RTSEN 0x4000 /* RTS hardware flow control */ #define UART011_CR_OUT2 0x2000 /* OUT2 */ diff --git a/include/linux/atmel_serial.h b/include/linux/atmel_serial.h index 5a4d664af87a..bd2560502f3c 100644 --- a/include/linux/atmel_serial.h +++ b/include/linux/atmel_serial.h @@ -118,6 +118,8 @@ #define ATMEL_US_BRGR 0x20 /* Baud Rate Generator Register */ #define ATMEL_US_CD GENMASK(15, 0) /* Clock Divider */ +#define ATMEL_US_FP_OFFSET 16 /* Fractional Part */ +#define ATMEL_US_FP_MASK 0x7 #define ATMEL_US_RTOR 0x24 /* Receiver Time-out Register for USART */ #define ATMEL_UA_RTOR 0x28 /* Receiver Time-out Register for UART */ diff --git a/include/linux/bcma/bcma_regs.h b/include/linux/bcma/bcma_regs.h index c607fce6aadd..9986f8288d01 100644 --- a/include/linux/bcma/bcma_regs.h +++ b/include/linux/bcma/bcma_regs.h @@ -10,6 +10,7 @@ #define BCMA_CLKCTLST_HAVEALPREQ 0x00000008 /* ALP available request */ #define BCMA_CLKCTLST_HAVEHTREQ 0x00000010 /* HT available request */ #define BCMA_CLKCTLST_HWCROFF 0x00000020 /* Force HW clock request off */ +#define BCMA_CLKCTLST_HQCLKREQ 0x00000040 /* HQ Clock */ #define BCMA_CLKCTLST_EXTRESREQ 0x00000700 /* Mask of external resource requests */ #define BCMA_CLKCTLST_EXTRESREQ_SHIFT 8 #define BCMA_CLKCTLST_HAVEALP 0x00010000 /* ALP available */ diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 598bc999f4c2..3b77588a9360 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -339,6 +339,24 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen, return __bitmap_parse(buf, buflen, 0, maskp, nmaskbits); } +/* + * bitmap_from_u64 - Check and swap words within u64. + * @mask: source bitmap + * @dst: destination bitmap + * + * In 32-bit Big Endian kernel, when using (u32 *)(&val)[*] + * to read u64 mask, we will get the wrong word. + * That is "(u32 *)(&val)[0]" gets the upper 32 bits, + * but we expect the lower 32-bits of u64. + */ +static inline void bitmap_from_u64(unsigned long *dst, u64 mask) +{ + dst[0] = mask & ULONG_MAX; + + if (sizeof(mask) > sizeof(unsigned long)) + dst[1] = mask >> 32; +} + #endif /* __ASSEMBLY__ */ #endif /* __LINUX_BITMAP_H */ diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index a39c0c530778..af596381fa0f 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -772,7 +772,7 @@ struct clk_onecell_data { }; struct clk_hw_onecell_data { - size_t num; + unsigned int num; struct clk_hw *hws[]; }; @@ -780,6 +780,18 @@ extern struct of_device_id __clk_of_table; #define CLK_OF_DECLARE(name, compat, fn) OF_DECLARE_1(clk, name, compat, fn) +/* + * Use this macro when you have a driver that requires two initialization + * routines, one at of_clk_init(), and one at platform device probe + */ +#define CLK_OF_DECLARE_DRIVER(name, compat, fn) \ + static void name##_of_clk_init_driver(struct device_node *np) \ + { \ + of_node_clear_flag(np, OF_POPULATED); \ + fn(np); \ + } \ + OF_DECLARE_1(clk, name, compat, name##_of_clk_init_driver) + #ifdef CONFIG_OF int of_clk_add_provider(struct device_node *np, struct clk *(*clk_src_get)(struct of_phandle_args *args, @@ -842,7 +854,7 @@ of_clk_hw_onecell_get(struct of_phandle_args *clkspec, void *data) { return ERR_PTR(-ENOENT); } -static inline int of_clk_get_parent_count(struct device_node *np) +static inline unsigned int of_clk_get_parent_count(struct device_node *np) { return 0; } diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 385d62e64abb..2a5982c37dfb 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -232,8 +232,9 @@ struct coresight_ops_source { int (*cpu_id)(struct coresight_device *csdev); int (*trace_id)(struct coresight_device *csdev); int (*enable)(struct coresight_device *csdev, - struct perf_event_attr *attr, u32 mode); - void (*disable)(struct coresight_device *csdev); + struct perf_event *event, u32 mode); + void (*disable)(struct coresight_device *csdev, + struct perf_event *event); }; struct coresight_ops { diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 797d9c8e9a1b..7572d9e9dced 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -61,17 +61,8 @@ struct notifier_block; #define CPU_DOWN_PREPARE 0x0005 /* CPU (unsigned)v going down */ #define CPU_DOWN_FAILED 0x0006 /* CPU (unsigned)v NOT going down */ #define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_DYING 0x0008 /* CPU (unsigned)v not running any task, - * not handling interrupts, soon dead. - * Called on the dying cpu, interrupts - * are already disabled. Must not - * sleep, must not fail */ #define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug * lock is dropped */ -#define CPU_STARTING 0x000A /* CPU (unsigned)v soon running. - * Called on the new cpu, just before - * enabling interrupts. Must not sleep, - * must not fail */ #define CPU_BROKEN 0x000B /* CPU (unsigned)v did not die properly, * perhaps due to preemption. */ @@ -86,9 +77,6 @@ struct notifier_block; #define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN) #define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN) #define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) -#define CPU_DYING_FROZEN (CPU_DYING | CPU_TASKS_FROZEN) -#define CPU_STARTING_FROZEN (CPU_STARTING | CPU_TASKS_FROZEN) - #ifdef CONFIG_SMP extern bool cpuhp_tasks_frozen; @@ -228,7 +216,11 @@ static inline void cpu_hotplug_done(void) {} #endif /* CONFIG_HOTPLUG_CPU */ #ifdef CONFIG_PM_SLEEP_SMP -extern int disable_nonboot_cpus(void); +extern int freeze_secondary_cpus(int primary); +static inline int disable_nonboot_cpus(void) +{ + return freeze_secondary_cpus(0); +} extern void enable_nonboot_cpus(void); #else /* !CONFIG_PM_SLEEP_SMP */ static inline int disable_nonboot_cpus(void) { return 0; } diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h index 34bd80512a0c..7b6c446ee17f 100644 --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -16,15 +16,40 @@ enum cpuhp_state { CPUHP_PERF_SUPERH, CPUHP_X86_HPET_DEAD, CPUHP_X86_APB_DEAD, + CPUHP_VIRT_NET_DEAD, + CPUHP_SLUB_DEAD, + CPUHP_MM_WRITEBACK_DEAD, + CPUHP_SOFTIRQ_DEAD, + CPUHP_NET_MVNETA_DEAD, + CPUHP_CPUIDLE_DEAD, + CPUHP_ARM64_FPSIMD_DEAD, + CPUHP_ARM_OMAP_WAKE_DEAD, + CPUHP_IRQ_POLL_DEAD, + CPUHP_BLOCK_SOFTIRQ_DEAD, + CPUHP_VIRT_SCSI_DEAD, + CPUHP_ACPI_CPUDRV_DEAD, + CPUHP_S390_PFAULT_DEAD, + CPUHP_BLK_MQ_DEAD, CPUHP_WORKQUEUE_PREP, CPUHP_POWER_NUMA_PREPARE, CPUHP_HRTIMERS_PREPARE, CPUHP_PROFILE_PREPARE, CPUHP_X2APIC_PREPARE, CPUHP_SMPCFD_PREPARE, + CPUHP_RELAY_PREPARE, + CPUHP_SLAB_PREPARE, + CPUHP_MD_RAID5_PREPARE, CPUHP_RCUTREE_PREP, + CPUHP_CPUIDLE_COUPLED_PREPARE, + CPUHP_POWERPC_PMAC_PREPARE, + CPUHP_POWERPC_MMU_CTX_PREPARE, CPUHP_NOTIFY_PREPARE, + CPUHP_ARM_SHMOBILE_SCU_PREPARE, + CPUHP_SH_SH3X_PREPARE, + CPUHP_BLK_MQ_PREPARE, CPUHP_TIMERS_DEAD, + CPUHP_NOTF_ERR_INJ_PREPARE, + CPUHP_MIPS_SOC_PREPARE, CPUHP_BRINGUP_CPU, CPUHP_AP_IDLE_DEAD, CPUHP_AP_OFFLINE, @@ -47,6 +72,8 @@ enum cpuhp_state { CPUHP_AP_PERF_METAG_STARTING, CPUHP_AP_MIPS_OP_LOONGSON3_STARTING, CPUHP_AP_ARM_VFP_STARTING, + CPUHP_AP_ARM64_DEBUG_MONITORS_STARTING, + CPUHP_AP_PERF_ARM_HW_BREAKPOINT_STARTING, CPUHP_AP_PERF_ARM_STARTING, CPUHP_AP_ARM_L2X0_STARTING, CPUHP_AP_ARM_ARCH_TIMER_STARTING, @@ -70,7 +97,6 @@ enum cpuhp_state { CPUHP_AP_ARM64_ISNDEP_STARTING, CPUHP_AP_SMPCFD_DYING, CPUHP_AP_X86_TBOOT_DYING, - CPUHP_AP_NOTIFY_STARTING, CPUHP_AP_ONLINE, CPUHP_TEARDOWN_CPU, CPUHP_AP_ONLINE_IDLE, @@ -101,7 +127,7 @@ enum cpuhp_state { int __cpuhp_setup_state(enum cpuhp_state state, const char *name, bool invoke, int (*startup)(unsigned int cpu), - int (*teardown)(unsigned int cpu)); + int (*teardown)(unsigned int cpu), bool multi_instance); /** * cpuhp_setup_state - Setup hotplug state callbacks with calling the callbacks @@ -118,7 +144,7 @@ static inline int cpuhp_setup_state(enum cpuhp_state state, int (*startup)(unsigned int cpu), int (*teardown)(unsigned int cpu)) { - return __cpuhp_setup_state(state, name, true, startup, teardown); + return __cpuhp_setup_state(state, name, true, startup, teardown, false); } /** @@ -137,7 +163,66 @@ static inline int cpuhp_setup_state_nocalls(enum cpuhp_state state, int (*startup)(unsigned int cpu), int (*teardown)(unsigned int cpu)) { - return __cpuhp_setup_state(state, name, false, startup, teardown); + return __cpuhp_setup_state(state, name, false, startup, teardown, + false); +} + +/** + * cpuhp_setup_state_multi - Add callbacks for multi state + * @state: The state for which the calls are installed + * @name: Name of the callback. + * @startup: startup callback function + * @teardown: teardown callback function + * + * Sets the internal multi_instance flag and prepares a state to work as a multi + * instance callback. No callbacks are invoked at this point. The callbacks are + * invoked once an instance for this state are registered via + * @cpuhp_state_add_instance or @cpuhp_state_add_instance_nocalls. + */ +static inline int cpuhp_setup_state_multi(enum cpuhp_state state, + const char *name, + int (*startup)(unsigned int cpu, + struct hlist_node *node), + int (*teardown)(unsigned int cpu, + struct hlist_node *node)) +{ + return __cpuhp_setup_state(state, name, false, + (void *) startup, + (void *) teardown, true); +} + +int __cpuhp_state_add_instance(enum cpuhp_state state, struct hlist_node *node, + bool invoke); + +/** + * cpuhp_state_add_instance - Add an instance for a state and invoke startup + * callback. + * @state: The state for which the instance is installed + * @node: The node for this individual state. + * + * Installs the instance for the @state and invokes the startup callback on + * the present cpus which have already reached the @state. The @state must have + * been earlier marked as multi-instance by @cpuhp_setup_state_multi. + */ +static inline int cpuhp_state_add_instance(enum cpuhp_state state, + struct hlist_node *node) +{ + return __cpuhp_state_add_instance(state, node, true); +} + +/** + * cpuhp_state_add_instance_nocalls - Add an instance for a state without + * invoking the startup callback. + * @state: The state for which the instance is installed + * @node: The node for this individual state. + * + * Installs the instance for the @state The @state must have been earlier + * marked as multi-instance by @cpuhp_setup_state_multi. + */ +static inline int cpuhp_state_add_instance_nocalls(enum cpuhp_state state, + struct hlist_node *node) +{ + return __cpuhp_state_add_instance(state, node, false); } void __cpuhp_remove_state(enum cpuhp_state state, bool invoke); @@ -164,6 +249,51 @@ static inline void cpuhp_remove_state_nocalls(enum cpuhp_state state) __cpuhp_remove_state(state, false); } +/** + * cpuhp_remove_multi_state - Remove hotplug multi state callback + * @state: The state for which the calls are removed + * + * Removes the callback functions from a multi state. This is the reverse of + * cpuhp_setup_state_multi(). All instances should have been removed before + * invoking this function. + */ +static inline void cpuhp_remove_multi_state(enum cpuhp_state state) +{ + __cpuhp_remove_state(state, false); +} + +int __cpuhp_state_remove_instance(enum cpuhp_state state, + struct hlist_node *node, bool invoke); + +/** + * cpuhp_state_remove_instance - Remove hotplug instance from state and invoke + * the teardown callback + * @state: The state from which the instance is removed + * @node: The node for this individual state. + * + * Removes the instance and invokes the teardown callback on the present cpus + * which have already reached the @state. + */ +static inline int cpuhp_state_remove_instance(enum cpuhp_state state, + struct hlist_node *node) +{ + return __cpuhp_state_remove_instance(state, node, true); +} + +/** + * cpuhp_state_remove_instance_nocalls - Remove hotplug instance from state + * without invoking the reatdown callback + * @state: The state from which the instance is removed + * @node: The node for this individual state. + * + * Removes the instance without invoking the teardown callback. + */ +static inline int cpuhp_state_remove_instance_nocalls(enum cpuhp_state state, + struct hlist_node *node) +{ + return __cpuhp_state_remove_instance(state, node, false); +} + #ifdef CONFIG_SMP void cpuhp_online_idle(enum cpuhp_state state); #else diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 1438e2322d5c..4d3f0d1aec73 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -45,6 +45,23 @@ extern struct dentry *arch_debugfs_dir; extern struct srcu_struct debugfs_srcu; +/** + * debugfs_real_fops - getter for the real file operation + * @filp: a pointer to a struct file + * + * Must only be called under the protection established by + * debugfs_use_file_start(). + */ +static inline const struct file_operations *debugfs_real_fops(struct file *filp) + __must_hold(&debugfs_srcu) +{ + /* + * Neither the pointer to the struct file_operations, nor its + * contents ever change -- srcu_dereference() is not needed here. + */ + return filp->f_path.dentry->d_fsdata; +} + #if defined(CONFIG_DEBUG_FS) struct dentry *debugfs_create_file(const char *name, umode_t mode, diff --git a/include/linux/devfreq-event.h b/include/linux/devfreq-event.h index 0a83a1e648b0..4db00b02ca3f 100644 --- a/include/linux/devfreq-event.h +++ b/include/linux/devfreq-event.h @@ -148,11 +148,6 @@ static inline int devfreq_event_reset_event(struct devfreq_event_dev *edev) return -EINVAL; } -static inline void *devfreq_event_get_drvdata(struct devfreq_event_dev *edev) -{ - return ERR_PTR(-EINVAL); -} - static inline struct devfreq_event_dev *devfreq_event_get_edev_by_phandle( struct device *dev, int index) { diff --git a/include/linux/dma/dw.h b/include/linux/dma/dw.h index f2e538aaddad..ccfd0c3777df 100644 --- a/include/linux/dma/dw.h +++ b/include/linux/dma/dw.h @@ -40,8 +40,13 @@ struct dw_dma_chip { }; /* Export to the platform drivers */ +#if IS_ENABLED(CONFIG_DW_DMAC_CORE) int dw_dma_probe(struct dw_dma_chip *chip); int dw_dma_remove(struct dw_dma_chip *chip); +#else +static inline int dw_dma_probe(struct dw_dma_chip *chip) { return -ENODEV; } +static inline int dw_dma_remove(struct dw_dma_chip *chip) { return 0; } +#endif /* CONFIG_DW_DMAC_CORE */ /* DMA API extensions */ struct dw_desc; diff --git a/include/linux/dma/hsu.h b/include/linux/dma/hsu.h index aaff68efba5d..197eec63e501 100644 --- a/include/linux/dma/hsu.h +++ b/include/linux/dma/hsu.h @@ -41,8 +41,7 @@ struct hsu_dma_chip { /* Export to the internal users */ int hsu_dma_get_status(struct hsu_dma_chip *chip, unsigned short nr, u32 *status); -irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, - u32 status); +int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, u32 status); /* Export to the platform drivers */ int hsu_dma_probe(struct hsu_dma_chip *chip); @@ -53,10 +52,10 @@ static inline int hsu_dma_get_status(struct hsu_dma_chip *chip, { return 0; } -static inline irqreturn_t hsu_dma_do_irq(struct hsu_dma_chip *chip, - unsigned short nr, u32 status) +static inline int hsu_dma_do_irq(struct hsu_dma_chip *chip, unsigned short nr, + u32 status) { - return IRQ_NONE; + return 0; } static inline int hsu_dma_probe(struct hsu_dma_chip *chip) { return -ENODEV; } static inline int hsu_dma_remove(struct hsu_dma_chip *chip) { return 0; } diff --git a/include/linux/efi.h b/include/linux/efi.h index 0148a3046b48..2d089487d2da 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -20,6 +20,7 @@ #include <linux/ioport.h> #include <linux/pfn.h> #include <linux/pstore.h> +#include <linux/range.h> #include <linux/reboot.h> #include <linux/uuid.h> #include <linux/screen_info.h> @@ -37,6 +38,7 @@ #define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1))) #define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1))) #define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1))) +#define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1))) #define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1))) typedef unsigned long efi_status_t; @@ -678,6 +680,18 @@ typedef struct { unsigned long tables; } efi_system_table_t; +/* + * Architecture independent structure for describing a memory map for the + * benefit of efi_memmap_init_early(), saving us the need to pass four + * parameters. + */ +struct efi_memory_map_data { + phys_addr_t phys_map; + unsigned long size; + unsigned long desc_version; + unsigned long desc_size; +}; + struct efi_memory_map { phys_addr_t phys_map; void *map; @@ -685,6 +699,12 @@ struct efi_memory_map { int nr_map; unsigned long desc_version; unsigned long desc_size; + bool late; +}; + +struct efi_mem_range { + struct range range; + u64 attribute; }; struct efi_fdt_params { @@ -909,6 +929,16 @@ static inline efi_status_t efi_query_variable_store(u32 attributes, } #endif extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr); + +extern int __init efi_memmap_init_early(struct efi_memory_map_data *data); +extern int __init efi_memmap_init_late(phys_addr_t addr, unsigned long size); +extern void __init efi_memmap_unmap(void); +extern int __init efi_memmap_install(phys_addr_t addr, unsigned int nr_map); +extern int __init efi_memmap_split_count(efi_memory_desc_t *md, + struct range *range); +extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, + void *buf, struct efi_mem_range *mem); + extern int efi_config_init(efi_config_table_type_t *arch_tables); #ifdef CONFIG_EFI_ESRT extern void __init efi_esrt_init(void); @@ -924,6 +954,7 @@ extern u64 efi_mem_attribute (unsigned long phys_addr, unsigned long size); extern int __init efi_uart_console_only (void); extern u64 efi_mem_desc_end(efi_memory_desc_t *md); extern int efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md); +extern void efi_mem_reserve(phys_addr_t addr, u64 size); extern void efi_initialize_iomem_resources(struct resource *code_resource, struct resource *data_resource, struct resource *bss_resource); extern void efi_reserve_boot_services(void); @@ -1136,12 +1167,6 @@ struct efivar_operations { }; struct efivars { - /* - * ->lock protects two things: - * 1) efivarfs_list and efivars_sysfs_list - * 2) ->ops calls - */ - spinlock_t lock; struct kset *kset; struct kobject *kobject; const struct efivar_operations *ops; @@ -1282,8 +1307,8 @@ struct kobject *efivars_kobject(void); int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), void *data, bool duplicates, struct list_head *head); -void efivar_entry_add(struct efivar_entry *entry, struct list_head *head); -void efivar_entry_remove(struct efivar_entry *entry); +int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); +int efivar_entry_remove(struct efivar_entry *entry); int __efivar_entry_delete(struct efivar_entry *entry); int efivar_entry_delete(struct efivar_entry *entry); @@ -1300,7 +1325,7 @@ int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes, bool block, unsigned long size, void *data); -void efivar_entry_iter_begin(void); +int efivar_entry_iter_begin(void); void efivar_entry_iter_end(void); int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *), @@ -1336,7 +1361,6 @@ extern int efi_capsule_update(efi_capsule_header_t *capsule, #ifdef CONFIG_EFI_RUNTIME_MAP int efi_runtime_map_init(struct kobject *); -void efi_runtime_map_setup(void *, int, u32); int efi_get_runtime_map_size(void); int efi_get_runtime_map_desc_size(void); int efi_runtime_map_copy(void *buf, size_t bufsz); @@ -1346,9 +1370,6 @@ static inline int efi_runtime_map_init(struct kobject *kobj) return 0; } -static inline void -efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} - static inline int efi_get_runtime_map_size(void) { return 0; diff --git a/include/linux/extcon.h b/include/linux/extcon.h index 61004413dc64..b871c0cb1f02 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -29,6 +29,15 @@ #include <linux/device.h> /* + * Define the type of supported external connectors + */ +#define EXTCON_TYPE_USB BIT(0) /* USB connector */ +#define EXTCON_TYPE_CHG BIT(1) /* Charger connector */ +#define EXTCON_TYPE_JACK BIT(2) /* Jack connector */ +#define EXTCON_TYPE_DISP BIT(3) /* Display connector */ +#define EXTCON_TYPE_MISC BIT(4) /* Miscellaneous connector */ + +/* * Define the unique id of supported external connectors */ #define EXTCON_NONE 0 @@ -44,6 +53,7 @@ #define EXTCON_CHG_USB_ACA 8 /* Accessory Charger Adapter */ #define EXTCON_CHG_USB_FAST 9 #define EXTCON_CHG_USB_SLOW 10 +#define EXTCON_CHG_WPT 11 /* Wireless Power Transfer */ /* Jack external connector */ #define EXTCON_JACK_MICROPHONE 20 @@ -60,6 +70,8 @@ #define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */ #define EXTCON_DISP_DVI 42 /* Digital Visual Interface */ #define EXTCON_DISP_VGA 43 /* Video Graphics Array */ +#define EXTCON_DISP_DP 44 /* Display Port */ +#define EXTCON_DISP_HMD 45 /* Head-Mounted Display */ /* Miscellaneous external connector */ #define EXTCON_DOCK 60 @@ -68,6 +80,85 @@ #define EXTCON_NUM 63 +/* + * Define the property of supported external connectors. + * + * When adding the new extcon property, they *must* have + * the type/value/default information. Also, you *have to* + * modify the EXTCON_PROP_[type]_START/END definitions + * which mean the range of the supported properties + * for each extcon type. + * + * The naming style of property + * : EXTCON_PROP_[type]_[property name] + * + * EXTCON_PROP_USB_[property name] : USB property + * EXTCON_PROP_CHG_[property name] : Charger property + * EXTCON_PROP_JACK_[property name] : Jack property + * EXTCON_PROP_DISP_[property name] : Display property + */ + +/* + * Properties of EXTCON_TYPE_USB. + * + * - EXTCON_PROP_USB_VBUS + * @type: integer (intval) + * @value: 0 (low) or 1 (high) + * @default: 0 (low) + * - EXTCON_PROP_USB_TYPEC_POLARITY + * @type: integer (intval) + * @value: 0 (normal) or 1 (flip) + * @default: 0 (normal) + * - EXTCON_PROP_USB_SS (SuperSpeed) + * @type: integer (intval) + * @value: 0 (USB/USB2) or 1 (USB3) + * @default: 0 (USB/USB2) + * + */ +#define EXTCON_PROP_USB_VBUS 0 +#define EXTCON_PROP_USB_TYPEC_POLARITY 1 +#define EXTCON_PROP_USB_SS 2 + +#define EXTCON_PROP_USB_MIN 0 +#define EXTCON_PROP_USB_MAX 2 +#define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1) + +/* Properties of EXTCON_TYPE_CHG. */ +#define EXTCON_PROP_CHG_MIN 50 +#define EXTCON_PROP_CHG_MAX 50 +#define EXTCON_PROP_CHG_CNT (EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1) + +/* Properties of EXTCON_TYPE_JACK. */ +#define EXTCON_PROP_JACK_MIN 100 +#define EXTCON_PROP_JACK_MAX 100 +#define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1) + +/* + * Properties of EXTCON_TYPE_DISP. + * + * - EXTCON_PROP_DISP_HPD (Hot Plug Detect) + * @type: integer (intval) + * @value: 0 (no hpd) or 1 (hpd) + * @default: 0 (no hpd) + * + */ +#define EXTCON_PROP_DISP_HPD 150 + +/* Properties of EXTCON_TYPE_DISP. */ +#define EXTCON_PROP_DISP_MIN 150 +#define EXTCON_PROP_DISP_MAX 151 +#define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1) + +/* + * Define the type of property's value. + * + * Define the property's value as union type. Because each property + * would need the different data type to store it. + */ +union extcon_property_value { + int intval; /* type : integer (intval) */ +}; + struct extcon_cable; /** @@ -150,26 +241,42 @@ extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev); /* - * get/set/update_state access the 32b encoded state value, which represents - * states of all possible cables of the multistate port. For example, if one - * calls extcon_set_state(edev, 0x7), it may mean that all the three cables - * are attached to the port. + * get/set_state access each bit of the 32b encoded state value. + * They are used to access the status of each cable based on the cable id. */ -static inline u32 extcon_get_state(struct extcon_dev *edev) -{ - return edev->state; -} +extern int extcon_get_state(struct extcon_dev *edev, unsigned int id); +extern int extcon_set_state(struct extcon_dev *edev, unsigned int id, + bool cable_state); +extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, + bool cable_state); +/* + * Synchronize the state and property data for a specific external connector. + */ +extern int extcon_sync(struct extcon_dev *edev, unsigned int id); -extern int extcon_set_state(struct extcon_dev *edev, u32 state); -extern int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state); +/* + * get/set_property access the property value of each external connector. + * They are used to access the property of each cable based on the property id. + */ +extern int extcon_get_property(struct extcon_dev *edev, unsigned int id, + unsigned int prop, + union extcon_property_value *prop_val); +extern int extcon_set_property(struct extcon_dev *edev, unsigned int id, + unsigned int prop, + union extcon_property_value prop_val); +extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id, + unsigned int prop, + union extcon_property_value prop_val); /* - * get/set_cable_state access each bit of the 32b encoded state value. - * They are used to access the status of each cable based on the cable id. + * get/set_property_capability set the capability of the property for each + * external connector. They are used to set the capability of the property + * of each external connector based on the id and property. */ -extern int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id); -extern int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id, - bool cable_state); +extern int extcon_get_property_capability(struct extcon_dev *edev, + unsigned int id, unsigned int prop); +extern int extcon_set_property_capability(struct extcon_dev *edev, + unsigned int id, unsigned int prop); /* * Following APIs are to monitor every action of a notifier. @@ -232,30 +339,57 @@ static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, static inline void devm_extcon_dev_free(struct extcon_dev *edev) { } -static inline u32 extcon_get_state(struct extcon_dev *edev) + +static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id) +{ + return 0; +} + +static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id, + bool cable_state) +{ + return 0; +} + +static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, + bool cable_state) { return 0; } -static inline int extcon_set_state(struct extcon_dev *edev, u32 state) +static inline int extcon_sync(struct extcon_dev *edev, unsigned int id) { return 0; } -static inline int extcon_update_state(struct extcon_dev *edev, u32 mask, - u32 state) +static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id, + unsigned int prop, + union extcon_property_value *prop_val) +{ + return 0; +} +static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id, + unsigned int prop, + union extcon_property_value prop_val) { return 0; } -static inline int extcon_get_cable_state_(struct extcon_dev *edev, - unsigned int id) +static inline int extcon_set_property_sync(struct extcon_dev *edev, + unsigned int id, unsigned int prop, + union extcon_property_value prop_val) { return 0; } -static inline int extcon_set_cable_state_(struct extcon_dev *edev, - unsigned int id, bool cable_state) +static inline int extcon_get_property_capability(struct extcon_dev *edev, + unsigned int id, unsigned int prop) +{ + return 0; +} + +static inline int extcon_set_property_capability(struct extcon_dev *edev, + unsigned int id, unsigned int prop) { return 0; } @@ -320,4 +454,15 @@ static inline int extcon_unregister_interest(struct extcon_specific_cable_nb { return -EINVAL; } + +static inline int extcon_get_cable_state_(struct extcon_dev *edev, unsigned int id) +{ + return extcon_get_state(edev, id); +} + +static inline int extcon_set_cable_state_(struct extcon_dev *edev, unsigned int id, + bool cable_state) +{ + return extcon_set_state_sync(edev, id, cable_state); +} #endif /* __LINUX_EXTCON_H__ */ diff --git a/include/linux/extcon/extcon-adc-jack.h b/include/linux/extcon/extcon-adc-jack.h index ac85f2061351..a0e03b13b449 100644 --- a/include/linux/extcon/extcon-adc-jack.h +++ b/include/linux/extcon/extcon-adc-jack.h @@ -20,8 +20,8 @@ /** * struct adc_jack_cond - condition to use an extcon state - * @state: the corresponding extcon state (if 0, this struct * denotes the last adc_jack_cond element among the array) + * @id: the unique id of each external connector * @min_adc: min adc value for this condition * @max_adc: max adc value for this condition * @@ -33,7 +33,7 @@ * because when no adc_jack_cond is met, state = 0 is automatically chosen. */ struct adc_jack_cond { - u32 state; /* extcon state value. 0 if invalid */ + unsigned int id; u32 min_adc; u32 max_adc; }; diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 7d565afe35d2..6f93ac46e7f0 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -795,7 +795,12 @@ struct ftrace_ret_stack { unsigned long func; unsigned long long calltime; unsigned long long subtime; +#ifdef HAVE_FUNCTION_GRAPH_FP_TEST unsigned long fp; +#endif +#ifdef HAVE_FUNCTION_GRAPH_RET_ADDR_PTR + unsigned long *retp; +#endif }; /* @@ -807,7 +812,10 @@ extern void return_to_handler(void); extern int ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth, - unsigned long frame_pointer); + unsigned long frame_pointer, unsigned long *retp); + +unsigned long ftrace_graph_ret_addr(struct task_struct *task, int *idx, + unsigned long ret, unsigned long *retp); /* * Sometimes we don't want to trace a function with the function @@ -870,6 +878,13 @@ static inline int task_curr_ret_stack(struct task_struct *tsk) return -1; } +static inline unsigned long +ftrace_graph_ret_addr(struct task_struct *task, int *idx, unsigned long ret, + unsigned long *retp) +{ + return ret; +} + static inline void pause_graph_tracing(void) { } static inline void unpause_graph_tracing(void) { } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h index 09354f6c1d63..9d2f8bde7d12 100644 --- a/include/linux/hwmon.h +++ b/include/linux/hwmon.h @@ -14,9 +14,341 @@ #ifndef _HWMON_H_ #define _HWMON_H_ +#include <linux/bitops.h> + struct device; struct attribute_group; +enum hwmon_sensor_types { + hwmon_chip, + hwmon_temp, + hwmon_in, + hwmon_curr, + hwmon_power, + hwmon_energy, + hwmon_humidity, + hwmon_fan, + hwmon_pwm, +}; + +enum hwmon_chip_attributes { + hwmon_chip_temp_reset_history, + hwmon_chip_in_reset_history, + hwmon_chip_curr_reset_history, + hwmon_chip_power_reset_history, + hwmon_chip_register_tz, + hwmon_chip_update_interval, + hwmon_chip_alarms, +}; + +#define HWMON_C_TEMP_RESET_HISTORY BIT(hwmon_chip_temp_reset_history) +#define HWMON_C_IN_RESET_HISTORY BIT(hwmon_chip_in_reset_history) +#define HWMON_C_CURR_RESET_HISTORY BIT(hwmon_chip_curr_reset_history) +#define HWMON_C_POWER_RESET_HISTORY BIT(hwmon_chip_power_reset_history) +#define HWMON_C_REGISTER_TZ BIT(hwmon_chip_register_tz) +#define HWMON_C_UPDATE_INTERVAL BIT(hwmon_chip_update_interval) +#define HWMON_C_ALARMS BIT(hwmon_chip_alarms) + +enum hwmon_temp_attributes { + hwmon_temp_input = 0, + hwmon_temp_type, + hwmon_temp_lcrit, + hwmon_temp_lcrit_hyst, + hwmon_temp_min, + hwmon_temp_min_hyst, + hwmon_temp_max, + hwmon_temp_max_hyst, + hwmon_temp_crit, + hwmon_temp_crit_hyst, + hwmon_temp_emergency, + hwmon_temp_emergency_hyst, + hwmon_temp_alarm, + hwmon_temp_lcrit_alarm, + hwmon_temp_min_alarm, + hwmon_temp_max_alarm, + hwmon_temp_crit_alarm, + hwmon_temp_emergency_alarm, + hwmon_temp_fault, + hwmon_temp_offset, + hwmon_temp_label, + hwmon_temp_lowest, + hwmon_temp_highest, + hwmon_temp_reset_history, +}; + +#define HWMON_T_INPUT BIT(hwmon_temp_input) +#define HWMON_T_TYPE BIT(hwmon_temp_type) +#define HWMON_T_LCRIT BIT(hwmon_temp_lcrit) +#define HWMON_T_LCRIT_HYST BIT(hwmon_temp_lcrit_hyst) +#define HWMON_T_MIN BIT(hwmon_temp_min) +#define HWMON_T_MIN_HYST BIT(hwmon_temp_min_hyst) +#define HWMON_T_MAX BIT(hwmon_temp_max) +#define HWMON_T_MAX_HYST BIT(hwmon_temp_max_hyst) +#define HWMON_T_CRIT BIT(hwmon_temp_crit) +#define HWMON_T_CRIT_HYST BIT(hwmon_temp_crit_hyst) +#define HWMON_T_EMERGENCY BIT(hwmon_temp_emergency) +#define HWMON_T_EMERGENCY_HYST BIT(hwmon_temp_emergency_hyst) +#define HWMON_T_MIN_ALARM BIT(hwmon_temp_min_alarm) +#define HWMON_T_MAX_ALARM BIT(hwmon_temp_max_alarm) +#define HWMON_T_CRIT_ALARM BIT(hwmon_temp_crit_alarm) +#define HWMON_T_EMERGENCY_ALARM BIT(hwmon_temp_emergency_alarm) +#define HWMON_T_FAULT BIT(hwmon_temp_fault) +#define HWMON_T_OFFSET BIT(hwmon_temp_offset) +#define HWMON_T_LABEL BIT(hwmon_temp_label) +#define HWMON_T_LOWEST BIT(hwmon_temp_lowest) +#define HWMON_T_HIGHEST BIT(hwmon_temp_highest) +#define HWMON_T_RESET_HISTORY BIT(hwmon_temp_reset_history) + +enum hwmon_in_attributes { + hwmon_in_input, + hwmon_in_min, + hwmon_in_max, + hwmon_in_lcrit, + hwmon_in_crit, + hwmon_in_average, + hwmon_in_lowest, + hwmon_in_highest, + hwmon_in_reset_history, + hwmon_in_label, + hwmon_in_alarm, + hwmon_in_min_alarm, + hwmon_in_max_alarm, + hwmon_in_lcrit_alarm, + hwmon_in_crit_alarm, +}; + +#define HWMON_I_INPUT BIT(hwmon_in_input) +#define HWMON_I_MIN BIT(hwmon_in_min) +#define HWMON_I_MAX BIT(hwmon_in_max) +#define HWMON_I_LCRIT BIT(hwmon_in_lcrit) +#define HWMON_I_CRIT BIT(hwmon_in_crit) +#define HWMON_I_AVERAGE BIT(hwmon_in_average) +#define HWMON_I_LOWEST BIT(hwmon_in_lowest) +#define HWMON_I_HIGHEST BIT(hwmon_in_highest) +#define HWMON_I_RESET_HISTORY BIT(hwmon_in_reset_history) +#define HWMON_I_LABEL BIT(hwmon_in_label) +#define HWMON_I_ALARM BIT(hwmon_in_alarm) +#define HWMON_I_MIN_ALARM BIT(hwmon_in_min_alarm) +#define HWMON_I_MAX_ALARM BIT(hwmon_in_max_alarm) +#define HWMON_I_LCRIT_ALARM BIT(hwmon_in_lcrit_alarm) +#define HWMON_I_CRIT_ALARM BIT(hwmon_in_crit_alarm) + +enum hwmon_curr_attributes { + hwmon_curr_input, + hwmon_curr_min, + hwmon_curr_max, + hwmon_curr_lcrit, + hwmon_curr_crit, + hwmon_curr_average, + hwmon_curr_lowest, + hwmon_curr_highest, + hwmon_curr_reset_history, + hwmon_curr_label, + hwmon_curr_alarm, + hwmon_curr_min_alarm, + hwmon_curr_max_alarm, + hwmon_curr_lcrit_alarm, + hwmon_curr_crit_alarm, +}; + +#define HWMON_C_INPUT BIT(hwmon_curr_input) +#define HWMON_C_MIN BIT(hwmon_curr_min) +#define HWMON_C_MAX BIT(hwmon_curr_max) +#define HWMON_C_LCRIT BIT(hwmon_curr_lcrit) +#define HWMON_C_CRIT BIT(hwmon_curr_crit) +#define HWMON_C_AVERAGE BIT(hwmon_curr_average) +#define HWMON_C_LOWEST BIT(hwmon_curr_lowest) +#define HWMON_C_HIGHEST BIT(hwmon_curr_highest) +#define HWMON_C_RESET_HISTORY BIT(hwmon_curr_reset_history) +#define HWMON_C_LABEL BIT(hwmon_curr_label) +#define HWMON_C_ALARM BIT(hwmon_curr_alarm) +#define HWMON_C_MIN_ALARM BIT(hwmon_curr_min_alarm) +#define HWMON_C_MAX_ALARM BIT(hwmon_curr_max_alarm) +#define HWMON_C_LCRIT_ALARM BIT(hwmon_curr_lcrit_alarm) +#define HWMON_C_CRIT_ALARM BIT(hwmon_curr_crit_alarm) + +enum hwmon_power_attributes { + hwmon_power_average, + hwmon_power_average_interval, + hwmon_power_average_interval_max, + hwmon_power_average_interval_min, + hwmon_power_average_highest, + hwmon_power_average_lowest, + hwmon_power_average_max, + hwmon_power_average_min, + hwmon_power_input, + hwmon_power_input_highest, + hwmon_power_input_lowest, + hwmon_power_reset_history, + hwmon_power_accuracy, + hwmon_power_cap, + hwmon_power_cap_hyst, + hwmon_power_cap_max, + hwmon_power_cap_min, + hwmon_power_max, + hwmon_power_crit, + hwmon_power_label, + hwmon_power_alarm, + hwmon_power_cap_alarm, + hwmon_power_max_alarm, + hwmon_power_crit_alarm, +}; + +#define HWMON_P_AVERAGE BIT(hwmon_power_average) +#define HWMON_P_AVERAGE_INTERVAL BIT(hwmon_power_average_interval) +#define HWMON_P_AVERAGE_INTERVAL_MAX BIT(hwmon_power_average_interval_max) +#define HWMON_P_AVERAGE_INTERVAL_MIN BIT(hwmon_power_average_interval_min) +#define HWMON_P_AVERAGE_HIGHEST BIT(hwmon_power_average_highest) +#define HWMON_P_AVERAGE_LOWEST BIT(hwmon_power_average_lowest) +#define HWMON_P_AVERAGE_MAX BIT(hwmon_power_average_max) +#define HWMON_P_AVERAGE_MIN BIT(hwmon_power_average_min) +#define HWMON_P_INPUT BIT(hwmon_power_input) +#define HWMON_P_INPUT_HIGHEST BIT(hwmon_power_input_highest) +#define HWMON_P_INPUT_LOWEST BIT(hwmon_power_input_lowest) +#define HWMON_P_RESET_HISTORY BIT(hwmon_power_reset_history) +#define HWMON_P_ACCURACY BIT(hwmon_power_accuracy) +#define HWMON_P_CAP BIT(hwmon_power_cap) +#define HWMON_P_CAP_HYST BIT(hwmon_power_cap_hyst) +#define HWMON_P_CAP_MAX BIT(hwmon_power_cap_max) +#define HWMON_P_CAP_MIN BIT(hwmon_power_cap_min) +#define HWMON_P_MAX BIT(hwmon_power_max) +#define HWMON_P_CRIT BIT(hwmon_power_crit) +#define HWMON_P_LABEL BIT(hwmon_power_label) +#define HWMON_P_ALARM BIT(hwmon_power_alarm) +#define HWMON_P_CAP_ALARM BIT(hwmon_power_cap_alarm) +#define HWMON_P_MAX_ALARM BIT(hwmon_power_max_alarm) +#define HWMON_P_CRIT_ALARM BIT(hwmon_power_crit_alarm) + +enum hwmon_energy_attributes { + hwmon_energy_input, + hwmon_energy_label, +}; + +#define HWMON_E_INPUT BIT(hwmon_energy_input) +#define HWMON_E_LABEL BIT(hwmon_energy_label) + +enum hwmon_humidity_attributes { + hwmon_humidity_input, + hwmon_humidity_label, + hwmon_humidity_min, + hwmon_humidity_min_hyst, + hwmon_humidity_max, + hwmon_humidity_max_hyst, + hwmon_humidity_alarm, + hwmon_humidity_fault, +}; + +#define HWMON_H_INPUT BIT(hwmon_humidity_input) +#define HWMON_H_LABEL BIT(hwmon_humidity_label) +#define HWMON_H_MIN BIT(hwmon_humidity_min) +#define HWMON_H_MIN_HYST BIT(hwmon_humidity_min_hyst) +#define HWMON_H_MAX BIT(hwmon_humidity_max) +#define HWMON_H_MAX_HYST BIT(hwmon_humidity_max_hyst) +#define HWMON_H_ALARM BIT(hwmon_humidity_alarm) +#define HWMON_H_FAULT BIT(hwmon_humidity_fault) + +enum hwmon_fan_attributes { + hwmon_fan_input, + hwmon_fan_label, + hwmon_fan_min, + hwmon_fan_max, + hwmon_fan_div, + hwmon_fan_pulses, + hwmon_fan_target, + hwmon_fan_alarm, + hwmon_fan_min_alarm, + hwmon_fan_max_alarm, + hwmon_fan_fault, +}; + +#define HWMON_F_INPUT BIT(hwmon_fan_input) +#define HWMON_F_LABEL BIT(hwmon_fan_label) +#define HWMON_F_MIN BIT(hwmon_fan_min) +#define HWMON_F_MAX BIT(hwmon_fan_max) +#define HWMON_F_DIV BIT(hwmon_fan_div) +#define HWMON_F_PULSES BIT(hwmon_fan_pulses) +#define HWMON_F_TARGET BIT(hwmon_fan_target) +#define HWMON_F_ALARM BIT(hwmon_fan_alarm) +#define HWMON_F_MIN_ALARM BIT(hwmon_fan_min_alarm) +#define HWMON_F_MAX_ALARM BIT(hwmon_fan_max_alarm) +#define HWMON_F_FAULT BIT(hwmon_fan_fault) + +enum hwmon_pwm_attributes { + hwmon_pwm_input, + hwmon_pwm_enable, + hwmon_pwm_mode, + hwmon_pwm_freq, +}; + +#define HWMON_PWM_INPUT BIT(hwmon_pwm_input) +#define HWMON_PWM_ENABLE BIT(hwmon_pwm_enable) +#define HWMON_PWM_MODE BIT(hwmon_pwm_mode) +#define HWMON_PWM_FREQ BIT(hwmon_pwm_freq) + +/** + * struct hwmon_ops - hwmon device operations + * @is_visible: Callback to return attribute visibility. Mandatory. + * Parameters are: + * @const void *drvdata: + * Pointer to driver-private data structure passed + * as argument to hwmon_device_register_with_info(). + * @type: Sensor type + * @attr: Sensor attribute + * @channel: + * Channel number + * The function returns the file permissions. + * If the return value is 0, no attribute will be created. + * @read: Read callback. Optional. If not provided, attributes + * will not be readable. + * Parameters are: + * @dev: Pointer to hardware monitoring device + * @type: Sensor type + * @attr: Sensor attribute + * @channel: + * Channel number + * @val: Pointer to returned value + * The function returns 0 on success or a negative error number. + * @write: Write callback. Optional. If not provided, attributes + * will not be writable. + * Parameters are: + * @dev: Pointer to hardware monitoring device + * @type: Sensor type + * @attr: Sensor attribute + * @channel: + * Channel number + * @val: Value to write + * The function returns 0 on success or a negative error number. + */ +struct hwmon_ops { + umode_t (*is_visible)(const void *drvdata, enum hwmon_sensor_types type, + u32 attr, int channel); + int (*read)(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val); + int (*write)(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val); +}; + +/** + * Channel information + * @type: Channel type. + * @config: Pointer to NULL-terminated list of channel parameters. + * Use for per-channel attributes. + */ +struct hwmon_channel_info { + enum hwmon_sensor_types type; + const u32 *config; +}; + +/** + * Chip configuration + * @ops: Pointer to hwmon operations. + * @info: Null-terminated list of channel information. + */ +struct hwmon_chip_info { + const struct hwmon_ops *ops; + const struct hwmon_channel_info **info; +}; + struct device *hwmon_device_register(struct device *dev); struct device * hwmon_device_register_with_groups(struct device *dev, const char *name, @@ -26,6 +358,16 @@ struct device * devm_hwmon_device_register_with_groups(struct device *dev, const char *name, void *drvdata, const struct attribute_group **groups); +struct device * +hwmon_device_register_with_info(struct device *dev, + const char *name, void *drvdata, + const struct hwmon_chip_info *info, + const struct attribute_group **groups); +struct device * +devm_hwmon_device_register_with_info(struct device *dev, + const char *name, void *drvdata, + const struct hwmon_chip_info *info, + const struct attribute_group **groups); void hwmon_device_unregister(struct device *dev); void devm_hwmon_device_unregister(struct device *dev); diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 5df444b1ac18..6824556d37ed 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -674,6 +674,11 @@ enum hv_signal_policy { HV_SIGNAL_POLICY_EXPLICIT, }; +enum hv_numa_policy { + HV_BALANCED = 0, + HV_LOCALIZED, +}; + enum vmbus_device_type { HV_IDE = 0, HV_SCSI, @@ -701,9 +706,6 @@ struct vmbus_device { }; struct vmbus_channel { - /* Unique channel id */ - int id; - struct list_head listentry; struct hv_device *device_obj; @@ -850,6 +852,43 @@ struct vmbus_channel { * ring lock to preserve the current behavior. */ bool acquire_ring_lock; + /* + * For performance critical channels (storage, networking + * etc,), Hyper-V has a mechanism to enhance the throughput + * at the expense of latency: + * When the host is to be signaled, we just set a bit in a shared page + * and this bit will be inspected by the hypervisor within a certain + * window and if the bit is set, the host will be signaled. The window + * of time is the monitor latency - currently around 100 usecs. This + * mechanism improves throughput by: + * + * A) Making the host more efficient - each time it wakes up, + * potentially it will process morev number of packets. The + * monitor latency allows a batch to build up. + * B) By deferring the hypercall to signal, we will also minimize + * the interrupts. + * + * Clearly, these optimizations improve throughput at the expense of + * latency. Furthermore, since the channel is shared for both + * control and data messages, control messages currently suffer + * unnecessary latency adversley impacting performance and boot + * time. To fix this issue, permit tagging the channel as being + * in "low latency" mode. In this mode, we will bypass the monitor + * mechanism. + */ + bool low_latency; + + /* + * NUMA distribution policy: + * We support teo policies: + * 1) Balanced: Here all performance critical channels are + * distributed evenly amongst all the NUMA nodes. + * This policy will be the default policy. + * 2) Localized: All channels of a given instance of a + * performance critical service will be assigned CPUs + * within a selected NUMA node. + */ + enum hv_numa_policy affinity_policy; }; @@ -870,6 +909,12 @@ static inline void set_channel_signal_state(struct vmbus_channel *c, c->signal_policy = policy; } +static inline void set_channel_affinity_state(struct vmbus_channel *c, + enum hv_numa_policy policy) +{ + c->affinity_policy = policy; +} + static inline void set_channel_read_state(struct vmbus_channel *c, bool state) { c->batched_reading = state; @@ -891,6 +936,16 @@ static inline void set_channel_pending_send_size(struct vmbus_channel *c, c->outbound.ring_buffer->pending_send_sz = size; } +static inline void set_low_latency_mode(struct vmbus_channel *c) +{ + c->low_latency = true; +} + +static inline void clear_low_latency_mode(struct vmbus_channel *c) +{ + c->low_latency = false; +} + void vmbus_onmessage(void *context); int vmbus_request_offers(void); @@ -1264,6 +1319,27 @@ u64 hv_do_hypercall(u64 control, void *input, void *output); 0x80, 0x2e, 0x27, 0xed, 0xe1, 0x9f) /* + * Linux doesn't support the 3 devices: the first two are for + * Automatic Virtual Machine Activation, and the third is for + * Remote Desktop Virtualization. + * {f8e65716-3cb3-4a06-9a60-1889c5cccab5} + * {3375baf4-9e15-4b30-b765-67acb10d607b} + * {276aacf4-ac15-426c-98dd-7521ad3f01fe} + */ + +#define HV_AVMA1_GUID \ + .guid = UUID_LE(0xf8e65716, 0x3cb3, 0x4a06, 0x9a, 0x60, \ + 0x18, 0x89, 0xc5, 0xcc, 0xca, 0xb5) + +#define HV_AVMA2_GUID \ + .guid = UUID_LE(0x3375baf4, 0x9e15, 0x4b30, 0xb7, 0x65, \ + 0x67, 0xac, 0xb1, 0x0d, 0x60, 0x7b) + +#define HV_RDV_GUID \ + .guid = UUID_LE(0x276aacf4, 0xac15, 0x426c, 0x98, 0xdd, \ + 0x75, 0x21, 0xad, 0x3f, 0x01, 0xfe) + +/* * Common header for Hyper-V ICs */ @@ -1351,6 +1427,15 @@ struct ictimesync_data { u8 flags; } __packed; +struct ictimesync_ref_data { + u64 parenttime; + u64 vmreferencetime; + u8 flags; + char leapflags; + char stratum; + u8 reserved[3]; +} __packed; + struct hyperv_service_callback { u8 msg_type; char *log_msg; @@ -1364,6 +1449,9 @@ extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *, struct icmsg_negotiate *, u8 *, int, int); +void hv_event_tasklet_disable(struct vmbus_channel *channel); +void hv_event_tasklet_enable(struct vmbus_channel *channel); + void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid); /* diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h new file mode 100644 index 000000000000..3fa5ef2b3759 --- /dev/null +++ b/include/linux/hypervisor.h @@ -0,0 +1,17 @@ +#ifndef __LINUX_HYPEVISOR_H +#define __LINUX_HYPEVISOR_H + +/* + * Generic Hypervisor support + * Juergen Gross <jgross@suse.com> + */ + +#ifdef CONFIG_HYPERVISOR_GUEST +#include <asm/hypervisor.h> +#else +static inline void hypervisor_pin_vcpu(int cpu) +{ +} +#endif + +#endif /* __LINUX_HYPEVISOR_H */ diff --git a/include/linux/init_task.h b/include/linux/init_task.h index f8834f820ec2..325f649d77ff 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -15,6 +15,8 @@ #include <net/net_namespace.h> #include <linux/sched/rt.h> +#include <asm/thread_info.h> + #ifdef CONFIG_SMP # define INIT_PUSHABLE_TASKS(tsk) \ .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), @@ -183,12 +185,21 @@ extern struct task_group root_task_group; # define INIT_KASAN(tsk) #endif +#ifdef CONFIG_THREAD_INFO_IN_TASK +# define INIT_TASK_TI(tsk) \ + .thread_info = INIT_THREAD_INFO(tsk), \ + .stack_refcount = ATOMIC_INIT(1), +#else +# define INIT_TASK_TI(tsk) +#endif + /* * INIT_TASK is used to set up the first task table, touch at * your own risk!. Base=0, limit=0x1fffff (=2MB) */ #define INIT_TASK(tsk) \ { \ + INIT_TASK_TI(tsk) \ .state = 0, \ .stack = init_stack, \ .usage = ATOMIC_INIT(2), \ diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index b6683f0ffc9f..72f0721f75e7 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -278,7 +278,8 @@ extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m); extern int irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify); -struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs); +struct cpumask *irq_create_affinity_masks(const struct cpumask *affinity, int nvec); +int irq_calc_affinity_vectors(const struct cpumask *affinity, int maxvec); #else /* CONFIG_SMP */ @@ -311,11 +312,18 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify) return 0; } -static inline struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs) +static inline struct cpumask * +irq_create_affinity_masks(const struct cpumask *affinity, int nvec) { - *nr_vecs = 1; return NULL; } + +static inline int +irq_calc_affinity_vectors(const struct cpumask *affinity, int maxvec) +{ + return maxvec; +} + #endif /* CONFIG_SMP */ /* diff --git a/include/linux/irq.h b/include/linux/irq.h index 0ac26c892fe2..e79875574b39 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -916,12 +916,20 @@ void irq_remove_generic_chip(struct irq_chip_generic *gc, u32 msk, unsigned int clr, unsigned int set); struct irq_chip_generic *irq_get_domain_generic_chip(struct irq_domain *d, unsigned int hw_irq); -int irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip, - int num_ct, const char *name, - irq_flow_handler_t handler, - unsigned int clr, unsigned int set, - enum irq_gc_flags flags); +int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip, + int num_ct, const char *name, + irq_flow_handler_t handler, + unsigned int clr, unsigned int set, + enum irq_gc_flags flags); + +#define irq_alloc_domain_generic_chips(d, irqs_per_chip, num_ct, name, \ + handler, clr, set, flags) \ +({ \ + MAYBE_BUILD_BUG_ON(irqs_per_chip > 32); \ + __irq_alloc_domain_generic_chips(d, irqs_per_chip, num_ct, name,\ + handler, clr, set, flags); \ +}) static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d) { diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h index 99ac022edc60..8361c8d3edd1 100644 --- a/include/linux/irqchip/arm-gic-v3.h +++ b/include/linux/irqchip/arm-gic-v3.h @@ -430,9 +430,9 @@ struct rdists { }; struct irq_domain; -struct device_node; +struct fwnode_handle; int its_cpu_init(void); -int its_init(struct device_node *node, struct rdists *rdists, +int its_init(struct fwnode_handle *handle, struct rdists *rdists, struct irq_domain *domain); static inline bool gic_enable_sre(void) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index b51beebf9804..c9be57931b58 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -2,6 +2,7 @@ #define _LINUX_IRQDESC_H #include <linux/rcupdate.h> +#include <linux/kobject.h> /* * Core internal functions to deal with irq descriptors @@ -43,6 +44,7 @@ struct pt_regs; * @force_resume_depth: number of irqactions on a irq descriptor with * IRQF_FORCE_RESUME set * @rcu: rcu head for delayed free + * @kobj: kobject used to represent this struct in sysfs * @dir: /proc/irq/ procfs entry * @name: flow handler name for /proc/interrupts output */ @@ -88,6 +90,7 @@ struct irq_desc { #endif #ifdef CONFIG_SPARSE_IRQ struct rcu_head rcu; + struct kobject kobj; #endif int parent_irq; struct module *owner; diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 661af564fae8..a0547c571800 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -21,6 +21,8 @@ * * DEFINE_STATIC_KEY_TRUE(key); * DEFINE_STATIC_KEY_FALSE(key); + * DEFINE_STATIC_KEY_ARRAY_TRUE(keys, count); + * DEFINE_STATIC_KEY_ARRAY_FALSE(keys, count); * static_branch_likely() * static_branch_unlikely() * @@ -267,9 +269,25 @@ struct static_key_false { #define DEFINE_STATIC_KEY_TRUE(name) \ struct static_key_true name = STATIC_KEY_TRUE_INIT +#define DECLARE_STATIC_KEY_TRUE(name) \ + extern struct static_key_true name + #define DEFINE_STATIC_KEY_FALSE(name) \ struct static_key_false name = STATIC_KEY_FALSE_INIT +#define DECLARE_STATIC_KEY_FALSE(name) \ + extern struct static_key_false name + +#define DEFINE_STATIC_KEY_ARRAY_TRUE(name, count) \ + struct static_key_true name[count] = { \ + [0 ... (count) - 1] = STATIC_KEY_TRUE_INIT, \ + } + +#define DEFINE_STATIC_KEY_ARRAY_FALSE(name, count) \ + struct static_key_false name[count] = { \ + [0 ... (count) - 1] = STATIC_KEY_FALSE_INIT, \ + } + extern bool ____wrong_branch_error(void); #define static_key_enabled(x) \ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index d96a6118d26a..74fd6f05bc5b 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -259,17 +259,14 @@ static inline void might_fault(void) { } extern struct atomic_notifier_head panic_notifier_list; extern long (*panic_blink)(int state); __printf(1, 2) -void panic(const char *fmt, ...) - __noreturn __cold; +void panic(const char *fmt, ...) __noreturn __cold; void nmi_panic(struct pt_regs *regs, const char *msg); extern void oops_enter(void); extern void oops_exit(void); void print_oops_end_marker(void); extern int oops_may_print(void); -void do_exit(long error_code) - __noreturn; -void complete_and_exit(struct completion *, long) - __noreturn; +void do_exit(long error_code) __noreturn; +void complete_and_exit(struct completion *, long) __noreturn; /* Internal, do not use. */ int __must_check _kstrtoul(const char *s, unsigned int base, unsigned long *res); diff --git a/include/linux/ktime.h b/include/linux/ktime.h index aa118bad1407..0fb7ffb1775f 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -64,6 +64,13 @@ static inline ktime_t ktime_set(const s64 secs, const unsigned long nsecs) ({ (ktime_t){ .tv64 = (lhs).tv64 + (rhs).tv64 }; }) /* + * Same as ktime_add(), but avoids undefined behaviour on overflow; however, + * this means that you must check the result for overflow yourself. + */ +#define ktime_add_unsafe(lhs, rhs) \ + ({ (ktime_t){ .tv64 = (u64) (lhs).tv64 + (rhs).tv64 }; }) + +/* * Add a ktime_t variable and a scalar nanosecond value. * res = kt + nsval: */ diff --git a/include/linux/leds.h b/include/linux/leds.h index 8a3b5d29602f..ddfcb2df3656 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -359,6 +359,11 @@ struct led_platform_data { struct led_info *leds; }; +struct gpio_desc; +typedef int (*gpio_blink_set_t)(struct gpio_desc *desc, int state, + unsigned long *delay_on, + unsigned long *delay_off); + /* For the leds-gpio driver */ struct gpio_led { const char *name; @@ -382,9 +387,7 @@ struct gpio_led_platform_data { #define GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */ #define GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */ #define GPIO_LED_BLINK 2 /* Please, blink */ - int (*gpio_blink_set)(struct gpio_desc *desc, int state, - unsigned long *delay_on, - unsigned long *delay_off); + gpio_blink_set_t gpio_blink_set; }; #ifdef CONFIG_NEW_LEDS diff --git a/include/linux/lglock.h b/include/linux/lglock.h deleted file mode 100644 index c92ebd100d9b..000000000000 --- a/include/linux/lglock.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Specialised local-global spinlock. Can only be declared as global variables - * to avoid overhead and keep things simple (and we don't want to start using - * these inside dynamically allocated structures). - * - * "local/global locks" (lglocks) can be used to: - * - * - Provide fast exclusive access to per-CPU data, with exclusive access to - * another CPU's data allowed but possibly subject to contention, and to - * provide very slow exclusive access to all per-CPU data. - * - Or to provide very fast and scalable read serialisation, and to provide - * very slow exclusive serialisation of data (not necessarily per-CPU data). - * - * Brlocks are also implemented as a short-hand notation for the latter use - * case. - * - * Copyright 2009, 2010, Nick Piggin, Novell Inc. - */ -#ifndef __LINUX_LGLOCK_H -#define __LINUX_LGLOCK_H - -#include <linux/spinlock.h> -#include <linux/lockdep.h> -#include <linux/percpu.h> -#include <linux/cpu.h> -#include <linux/notifier.h> - -#ifdef CONFIG_SMP - -#ifdef CONFIG_DEBUG_LOCK_ALLOC -#define LOCKDEP_INIT_MAP lockdep_init_map -#else -#define LOCKDEP_INIT_MAP(a, b, c, d) -#endif - -struct lglock { - arch_spinlock_t __percpu *lock; -#ifdef CONFIG_DEBUG_LOCK_ALLOC - struct lock_class_key lock_key; - struct lockdep_map lock_dep_map; -#endif -}; - -#define DEFINE_LGLOCK(name) \ - static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \ - = __ARCH_SPIN_LOCK_UNLOCKED; \ - struct lglock name = { .lock = &name ## _lock } - -#define DEFINE_STATIC_LGLOCK(name) \ - static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock) \ - = __ARCH_SPIN_LOCK_UNLOCKED; \ - static struct lglock name = { .lock = &name ## _lock } - -void lg_lock_init(struct lglock *lg, char *name); - -void lg_local_lock(struct lglock *lg); -void lg_local_unlock(struct lglock *lg); -void lg_local_lock_cpu(struct lglock *lg, int cpu); -void lg_local_unlock_cpu(struct lglock *lg, int cpu); - -void lg_double_lock(struct lglock *lg, int cpu1, int cpu2); -void lg_double_unlock(struct lglock *lg, int cpu1, int cpu2); - -void lg_global_lock(struct lglock *lg); -void lg_global_unlock(struct lglock *lg); - -#else -/* When !CONFIG_SMP, map lglock to spinlock */ -#define lglock spinlock -#define DEFINE_LGLOCK(name) DEFINE_SPINLOCK(name) -#define DEFINE_STATIC_LGLOCK(name) static DEFINE_SPINLOCK(name) -#define lg_lock_init(lg, name) spin_lock_init(lg) -#define lg_local_lock spin_lock -#define lg_local_unlock spin_unlock -#define lg_local_lock_cpu(lg, cpu) spin_lock(lg) -#define lg_local_unlock_cpu(lg, cpu) spin_unlock(lg) -#define lg_global_lock spin_lock -#define lg_global_unlock spin_unlock -#endif - -#endif diff --git a/include/linux/list.h b/include/linux/list.h index 5183138aa932..5809e9a2de5b 100644 --- a/include/linux/list.h +++ b/include/linux/list.h @@ -381,8 +381,11 @@ static inline void list_splice_tail_init(struct list_head *list, * * Note that if the list is empty, it returns NULL. */ -#define list_first_entry_or_null(ptr, type, member) \ - (!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL) +#define list_first_entry_or_null(ptr, type, member) ({ \ + struct list_head *head__ = (ptr); \ + struct list_head *pos__ = READ_ONCE(head__->next); \ + pos__ != head__ ? list_entry(pos__, type, member) : NULL; \ +}) /** * list_next_entry - get the next element in list diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h index ffb9c9da4f39..e58e577117b6 100644 --- a/include/linux/lsm_audit.h +++ b/include/linux/lsm_audit.h @@ -59,6 +59,7 @@ struct common_audit_data { #define LSM_AUDIT_DATA_INODE 9 #define LSM_AUDIT_DATA_DENTRY 10 #define LSM_AUDIT_DATA_IOCTL_OP 11 +#define LSM_AUDIT_DATA_FILE 12 union { struct path path; struct dentry *dentry; @@ -75,6 +76,7 @@ struct common_audit_data { #endif char *kmod_name; struct lsm_ioctlop_audit *op; + struct file *file; } u; /* this union contains LSM specific data */ union { diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 101bf19c0f41..558adfa5c8a8 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -151,6 +151,16 @@ * @name name of the last path component used to create file * @ctx pointer to place the pointer to the resulting context in. * @ctxlen point to place the length of the resulting context. + * @dentry_create_files_as: + * Compute a context for a dentry as the inode is not yet available + * and set that context in passed in creds so that new files are + * created using that context. Context is calculated using the + * passed in creds and not the creds of the caller. + * @dentry dentry to use in calculating the context. + * @mode mode used to determine resource type. + * @name name of the last path component used to create file + * @old creds which should be used for context calculation + * @new creds to modify * * * Security hooks for inode operations. @@ -401,6 +411,23 @@ * @inode contains a pointer to the inode. * @secid contains a pointer to the location where result will be saved. * In case of failure, @secid will be set to zero. + * @inode_copy_up: + * A file is about to be copied up from lower layer to upper layer of + * overlay filesystem. Security module can prepare a set of new creds + * and modify as need be and return new creds. Caller will switch to + * new creds temporarily to create new file and release newly allocated + * creds. + * @src indicates the union dentry of file that is being copied up. + * @new pointer to pointer to return newly allocated creds. + * Returns 0 on success or a negative error code on error. + * @inode_copy_up_xattr: + * Filter the xattrs being copied up when a unioned file is copied + * up from a lower layer to the union/overlay layer. + * @name indicates the name of the xattr. + * Returns 0 to accept the xattr, 1 to discard the xattr, -EOPNOTSUPP if + * security module does not know about attribute or a negative error code + * to abort the copy up. Note that the caller is responsible for reading + * and writing the xattrs as this hook is merely a filter. * * Security hooks for file operations * @@ -1358,6 +1385,10 @@ union security_list_options { int (*dentry_init_security)(struct dentry *dentry, int mode, const struct qstr *name, void **ctx, u32 *ctxlen); + int (*dentry_create_files_as)(struct dentry *dentry, int mode, + struct qstr *name, + const struct cred *old, + struct cred *new); #ifdef CONFIG_SECURITY_PATH @@ -1425,6 +1456,8 @@ union security_list_options { int (*inode_listsecurity)(struct inode *inode, char *buffer, size_t buffer_size); void (*inode_getsecid)(struct inode *inode, u32 *secid); + int (*inode_copy_up)(struct dentry *src, struct cred **new); + int (*inode_copy_up_xattr)(const char *name); int (*file_permission)(struct file *file, int mask); int (*file_alloc_security)(struct file *file); @@ -1455,7 +1488,6 @@ union security_list_options { int (*kernel_act_as)(struct cred *new, u32 secid); int (*kernel_create_files_as)(struct cred *new, struct inode *inode); int (*kernel_module_request)(char *kmod_name); - int (*kernel_module_from_file)(struct file *file); int (*kernel_read_file)(struct file *file, enum kernel_read_file_id id); int (*kernel_post_read_file)(struct file *file, char *buf, loff_t size, enum kernel_read_file_id id); @@ -1656,6 +1688,7 @@ struct security_hook_heads { struct list_head sb_clone_mnt_opts; struct list_head sb_parse_opts_str; struct list_head dentry_init_security; + struct list_head dentry_create_files_as; #ifdef CONFIG_SECURITY_PATH struct list_head path_unlink; struct list_head path_mkdir; @@ -1696,6 +1729,8 @@ struct security_hook_heads { struct list_head inode_setsecurity; struct list_head inode_listsecurity; struct list_head inode_getsecid; + struct list_head inode_copy_up; + struct list_head inode_copy_up_xattr; struct list_head file_permission; struct list_head file_alloc_security; struct list_head file_free_security; diff --git a/include/linux/mcb.h b/include/linux/mcb.h index ead13d233a97..4097ac9ea13a 100644 --- a/include/linux/mcb.h +++ b/include/linux/mcb.h @@ -41,15 +41,17 @@ struct mcb_bus { char name[CHAMELEON_FILENAME_LEN + 1]; int (*get_irq)(struct mcb_device *dev); }; -#define to_mcb_bus(b) container_of((b), struct mcb_bus, dev) + +static inline struct mcb_bus *to_mcb_bus(struct device *dev) +{ + return container_of(dev, struct mcb_bus, dev); +} /** * struct mcb_device - MEN Chameleon Bus device * - * @bus_list: internal list handling for bus code * @dev: device in kernel representation * @bus: mcb bus the device is plugged to - * @subordinate: subordinate MCBus in case of bridge * @is_added: flag to check if device is added to bus * @driver: associated mcb_driver * @id: mcb device id @@ -62,10 +64,8 @@ struct mcb_bus { * @memory: memory resource */ struct mcb_device { - struct list_head bus_list; struct device dev; struct mcb_bus *bus; - struct mcb_bus *subordinate; bool is_added; struct mcb_driver *driver; u16 id; @@ -76,8 +76,13 @@ struct mcb_device { int rev; struct resource irq; struct resource mem; + struct device *dma_dev; }; -#define to_mcb_device(x) container_of((x), struct mcb_device, dev) + +static inline struct mcb_device *to_mcb_device(struct device *dev) +{ + return container_of(dev, struct mcb_device, dev); +} /** * struct mcb_driver - MEN Chameleon Bus device driver @@ -95,7 +100,11 @@ struct mcb_driver { void (*remove)(struct mcb_device *mdev); void (*shutdown)(struct mcb_device *mdev); }; -#define to_mcb_driver(x) container_of((x), struct mcb_driver, driver) + +static inline struct mcb_driver *to_mcb_driver(struct device_driver *drv) +{ + return container_of(drv, struct mcb_driver, driver); +} static inline void *mcb_get_drvdata(struct mcb_device *dev) { diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h index 7fdf5326f34e..d1db9527fab5 100644 --- a/include/linux/mfd/tps65218.h +++ b/include/linux/mfd/tps65218.h @@ -63,6 +63,11 @@ #define TPS65218_CHIPID_CHIP_MASK 0xF8 #define TPS65218_CHIPID_REV_MASK 0x07 +#define TPS65218_REV_1_0 0x0 +#define TPS65218_REV_1_1 0x1 +#define TPS65218_REV_2_0 0x2 +#define TPS65218_REV_2_1 0x3 + #define TPS65218_INT1_VPRG BIT(5) #define TPS65218_INT1_AC BIT(4) #define TPS65218_INT1_PB BIT(3) @@ -267,6 +272,7 @@ struct tps_info { struct tps65218 { struct device *dev; unsigned int id; + u8 rev; struct mutex tps_lock; /* lock guarding the data structure */ /* IRQ Data */ diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index 543037465973..722698a43d79 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -3,6 +3,7 @@ #include <linux/major.h> #include <linux/list.h> #include <linux/types.h> +#include <linux/device.h> /* * These allocations are managed by device@lanana.org. If you use an @@ -70,6 +71,13 @@ struct miscdevice { extern int misc_register(struct miscdevice *misc); extern void misc_deregister(struct miscdevice *misc); +/* + * Helper macro for drivers that don't do anything special in module init / exit + * call. This helps in eleminating of boilerplate code. + */ +#define module_misc_device(__misc_device) \ + module_driver(__misc_device, misc_register, misc_deregister) + #define MODULE_ALIAS_MISCDEV(minor) \ MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR) \ "-" __stringify(minor)) diff --git a/include/linux/mm.h b/include/linux/mm.h index ef815b9cd426..5f14534f0c90 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2019,6 +2019,8 @@ extern struct file *get_task_exe_file(struct task_struct *task); extern bool may_expand_vm(struct mm_struct *, vm_flags_t, unsigned long npages); extern void vm_stat_account(struct mm_struct *, vm_flags_t, long npages); +extern bool vma_is_special_mapping(const struct vm_area_struct *vma, + const struct vm_special_mapping *sm); extern struct vm_area_struct *_install_special_mapping(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long flags, diff --git a/include/linux/msi.h b/include/linux/msi.h index e8c81fbd5f9c..0db320b7bb15 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -68,7 +68,7 @@ struct msi_desc { unsigned int nvec_used; struct device *dev; struct msi_msg msg; - const struct cpumask *affinity; + struct cpumask *affinity; union { /* PCI MSI/X specific data */ @@ -123,7 +123,8 @@ static inline void *msi_desc_to_pci_sysdata(struct msi_desc *desc) } #endif /* CONFIG_PCI_MSI */ -struct msi_desc *alloc_msi_entry(struct device *dev); +struct msi_desc *alloc_msi_entry(struct device *dev, int nvec, + const struct cpumask *affinity); void free_msi_entry(struct msi_desc *entry); void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg); void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg); diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 26c3302ae58f..4341f32516d8 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/init.h> +#include <linux/errno.h> /* Definitions used by the flattened device tree */ #define OF_DT_HEADER 0xd00dfeed /* marker */ @@ -66,6 +67,7 @@ extern int early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data); extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); +extern int early_init_dt_scan_chosen_stdout(void); extern void early_init_fdt_scan_reserved_mem(void); extern void early_init_fdt_reserve_self(void); extern void early_init_dt_add_memory_arch(u64 base, u64 size); @@ -94,6 +96,7 @@ extern void early_get_first_memblock_info(void *, phys_addr_t *); extern u64 of_flat_dt_translate_address(unsigned long node); extern void of_fdt_limit_memory(int limit); #else /* CONFIG_OF_FLATTREE */ +static inline int early_init_dt_scan_chosen_stdout(void) { return -ENODEV; } static inline void early_init_fdt_scan_reserved_mem(void) {} static inline void early_init_fdt_reserve_self(void) {} static inline const char *of_flat_dt_get_machine_name(void) { return NULL; } diff --git a/include/linux/padata.h b/include/linux/padata.h index 113ee626a4dc..0f9e567d5e15 100644 --- a/include/linux/padata.h +++ b/include/linux/padata.h @@ -151,7 +151,7 @@ struct parallel_data { * @flags: padata flags. */ struct padata_instance { - struct notifier_block cpu_notifier; + struct hlist_node node; struct workqueue_struct *wq; struct parallel_data *pd; struct padata_cpumask cpumask; diff --git a/include/linux/pci.h b/include/linux/pci.h index 0ab835965669..7cc0acba8939 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1126,6 +1126,7 @@ void pdev_enable_device(struct pci_dev *); int pci_enable_resources(struct pci_dev *, int mask); void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), int (*)(const struct pci_dev *, u8, u8)); +struct resource *pci_find_resource(struct pci_dev *dev, struct resource *res); #define HAVE_PCI_REQ_REGIONS 2 int __must_check pci_request_regions(struct pci_dev *, const char *); int __must_check pci_request_regions_exclusive(struct pci_dev *, const char *); @@ -1300,6 +1301,7 @@ int pci_alloc_irq_vectors(struct pci_dev *dev, unsigned int min_vecs, unsigned int max_vecs, unsigned int flags); void pci_free_irq_vectors(struct pci_dev *dev); int pci_irq_vector(struct pci_dev *dev, unsigned int nr); +const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, int vec); #else static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } @@ -1342,6 +1344,11 @@ static inline int pci_irq_vector(struct pci_dev *dev, unsigned int nr) return -EINVAL; return dev->irq; } +static inline const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, + int vec) +{ + return cpu_possible_mask; +} #endif #ifdef CONFIG_PCIEPORTBUS @@ -1542,6 +1549,9 @@ static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) { return 0; } +static inline struct resource *pci_find_resource(struct pci_dev *dev, + struct resource *res) +{ return NULL; } static inline int pci_request_regions(struct pci_dev *dev, const char *res_name) { return -EIO; } static inline void pci_release_regions(struct pci_dev *dev) { } diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h index c2fa3ecb0dce..5b2e6159b744 100644 --- a/include/linux/percpu-rwsem.h +++ b/include/linux/percpu-rwsem.h @@ -10,32 +10,122 @@ struct percpu_rw_semaphore { struct rcu_sync rss; - unsigned int __percpu *fast_read_ctr; + unsigned int __percpu *read_count; struct rw_semaphore rw_sem; - atomic_t slow_read_ctr; - wait_queue_head_t write_waitq; + wait_queue_head_t writer; + int readers_block; }; -extern void percpu_down_read(struct percpu_rw_semaphore *); -extern int percpu_down_read_trylock(struct percpu_rw_semaphore *); -extern void percpu_up_read(struct percpu_rw_semaphore *); +#define DEFINE_STATIC_PERCPU_RWSEM(name) \ +static DEFINE_PER_CPU(unsigned int, __percpu_rwsem_rc_##name); \ +static struct percpu_rw_semaphore name = { \ + .rss = __RCU_SYNC_INITIALIZER(name.rss, RCU_SCHED_SYNC), \ + .read_count = &__percpu_rwsem_rc_##name, \ + .rw_sem = __RWSEM_INITIALIZER(name.rw_sem), \ + .writer = __WAIT_QUEUE_HEAD_INITIALIZER(name.writer), \ +} + +extern int __percpu_down_read(struct percpu_rw_semaphore *, int); +extern void __percpu_up_read(struct percpu_rw_semaphore *); + +static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem) +{ + might_sleep(); + + rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 0, _RET_IP_); + + preempt_disable(); + /* + * We are in an RCU-sched read-side critical section, so the writer + * cannot both change sem->state from readers_fast and start checking + * counters while we are here. So if we see !sem->state, we know that + * the writer won't be checking until we're past the preempt_enable() + * and that one the synchronize_sched() is done, the writer will see + * anything we did within this RCU-sched read-size critical section. + */ + __this_cpu_inc(*sem->read_count); + if (unlikely(!rcu_sync_is_idle(&sem->rss))) + __percpu_down_read(sem, false); /* Unconditional memory barrier */ + barrier(); + /* + * The barrier() prevents the compiler from + * bleeding the critical section out. + */ +} + +static inline void percpu_down_read(struct percpu_rw_semaphore *sem) +{ + percpu_down_read_preempt_disable(sem); + preempt_enable(); +} + +static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem) +{ + int ret = 1; + + preempt_disable(); + /* + * Same as in percpu_down_read(). + */ + __this_cpu_inc(*sem->read_count); + if (unlikely(!rcu_sync_is_idle(&sem->rss))) + ret = __percpu_down_read(sem, true); /* Unconditional memory barrier */ + preempt_enable(); + /* + * The barrier() from preempt_enable() prevents the compiler from + * bleeding the critical section out. + */ + + if (ret) + rwsem_acquire_read(&sem->rw_sem.dep_map, 0, 1, _RET_IP_); + + return ret; +} + +static inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem) +{ + /* + * The barrier() prevents the compiler from + * bleeding the critical section out. + */ + barrier(); + /* + * Same as in percpu_down_read(). + */ + if (likely(rcu_sync_is_idle(&sem->rss))) + __this_cpu_dec(*sem->read_count); + else + __percpu_up_read(sem); /* Unconditional memory barrier */ + preempt_enable(); + + rwsem_release(&sem->rw_sem.dep_map, 1, _RET_IP_); +} + +static inline void percpu_up_read(struct percpu_rw_semaphore *sem) +{ + preempt_disable(); + percpu_up_read_preempt_enable(sem); +} extern void percpu_down_write(struct percpu_rw_semaphore *); extern void percpu_up_write(struct percpu_rw_semaphore *); extern int __percpu_init_rwsem(struct percpu_rw_semaphore *, const char *, struct lock_class_key *); + extern void percpu_free_rwsem(struct percpu_rw_semaphore *); -#define percpu_init_rwsem(brw) \ +#define percpu_init_rwsem(sem) \ ({ \ static struct lock_class_key rwsem_key; \ - __percpu_init_rwsem(brw, #brw, &rwsem_key); \ + __percpu_init_rwsem(sem, #sem, &rwsem_key); \ }) - #define percpu_rwsem_is_held(sem) lockdep_is_held(&(sem)->rw_sem) +#define percpu_rwsem_assert_held(sem) \ + lockdep_assert_held(&(sem)->rw_sem) + static inline void percpu_rwsem_release(struct percpu_rw_semaphore *sem, bool read, unsigned long ip) { diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index e18843809eec..8462da266089 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -14,7 +14,7 @@ #include <linux/interrupt.h> #include <linux/perf_event.h> - +#include <linux/sysfs.h> #include <asm/cputype.h> /* @@ -77,6 +77,13 @@ struct pmu_hw_events { struct arm_pmu *percpu_pmu; }; +enum armpmu_attr_groups { + ARMPMU_ATTR_GROUP_COMMON, + ARMPMU_ATTR_GROUP_EVENTS, + ARMPMU_ATTR_GROUP_FORMATS, + ARMPMU_NR_ATTR_GROUPS +}; + struct arm_pmu { struct pmu pmu; cpumask_t active_irqs; @@ -109,8 +116,10 @@ struct arm_pmu { DECLARE_BITMAP(pmceid_bitmap, ARMV8_PMUV3_MAX_COMMON_EVENTS); struct platform_device *plat_device; struct pmu_hw_events __percpu *hw_events; - struct list_head entry; + struct hlist_node node; struct notifier_block cpu_pm_nb; + /* the attr_groups array must be NULL-terminated */ + const struct attribute_group *attr_groups[ARMPMU_NR_ATTR_GROUPS + 1]; }; #define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) @@ -151,6 +160,8 @@ int arm_pmu_device_probe(struct platform_device *pdev, const struct of_device_id *of_table, const struct pmu_probe_info *probe_table); +#define ARMV8_PMU_PDEV_NAME "armv8-pmu" + #endif /* CONFIG_ARM_PMU */ #endif /* __ARM_PMU_H__ */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ccb73a58113d..060d0ede88df 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -510,9 +510,15 @@ typedef void (*perf_overflow_handler_t)(struct perf_event *, struct perf_sample_data *, struct pt_regs *regs); -enum perf_group_flag { - PERF_GROUP_SOFTWARE = 0x1, -}; +/* + * Event capabilities. For event_caps and groups caps. + * + * PERF_EV_CAP_SOFTWARE: Is a software event. + * PERF_EV_CAP_READ_ACTIVE_PKG: A CPU event (or cgroup event) that can be read + * from any CPU in the package where it is active. + */ +#define PERF_EV_CAP_SOFTWARE BIT(0) +#define PERF_EV_CAP_READ_ACTIVE_PKG BIT(1) #define SWEVENT_HLIST_BITS 8 #define SWEVENT_HLIST_SIZE (1 << SWEVENT_HLIST_BITS) @@ -568,7 +574,12 @@ struct perf_event { struct hlist_node hlist_entry; struct list_head active_entry; int nr_siblings; - int group_flags; + + /* Not serialized. Only written during event initialization. */ + int event_caps; + /* The cumulative AND of all event_caps for events in this group. */ + int group_caps; + struct perf_event *group_leader; struct pmu *pmu; void *pmu_private; @@ -778,6 +789,9 @@ struct perf_cpu_context { #ifdef CONFIG_CGROUP_PERF struct perf_cgroup *cgrp; #endif + + struct list_head sched_cb_entry; + int sched_cb_usage; }; struct perf_output_handle { @@ -994,7 +1008,7 @@ static inline bool is_sampling_event(struct perf_event *event) */ static inline int is_software_event(struct perf_event *event) { - return event->pmu->task_ctx_nr == perf_sw_context; + return event->event_caps & PERF_EV_CAP_SOFTWARE; } extern struct static_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index f08b67238b58..ee1bed7dbfc6 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -36,6 +36,7 @@ enum phy_mode { * @power_on: powering on the phy * @power_off: powering off the phy * @set_mode: set the mode of the phy + * @reset: resetting the phy * @owner: the module owner containing the ops */ struct phy_ops { @@ -44,6 +45,7 @@ struct phy_ops { int (*power_on)(struct phy *phy); int (*power_off)(struct phy *phy); int (*set_mode)(struct phy *phy, enum phy_mode mode); + int (*reset)(struct phy *phy); struct module *owner; }; @@ -136,6 +138,7 @@ int phy_exit(struct phy *phy); int phy_power_on(struct phy *phy); int phy_power_off(struct phy *phy); int phy_set_mode(struct phy *phy, enum phy_mode mode); +int phy_reset(struct phy *phy); static inline int phy_get_bus_width(struct phy *phy) { return phy->attrs.bus_width; diff --git a/include/linux/platform_data/dma-dw.h b/include/linux/platform_data/dma-dw.h index d15d8ba8cc24..5f0e11e7354c 100644 --- a/include/linux/platform_data/dma-dw.h +++ b/include/linux/platform_data/dma-dw.h @@ -23,6 +23,7 @@ * @dst_id: dst request line * @m_master: memory master for transfers on allocated channel * @p_master: peripheral master for transfers on allocated channel + * @hs_polarity:set active low polarity of handshake interface */ struct dw_dma_slave { struct device *dma_dev; @@ -30,6 +31,7 @@ struct dw_dma_slave { u8 dst_id; u8 m_master; u8 p_master; + bool hs_polarity; }; /** @@ -38,6 +40,7 @@ struct dw_dma_slave { * @is_private: The device channels should be marked as private and not for * by the general purpose DMA channel allocator. * @is_memcpy: The device channels do support memory-to-memory transfers. + * @is_nollp: The device channels does not support multi block transfers. * @chan_allocation_order: Allocate channels starting from 0 or 7 * @chan_priority: Set channel priority increasing from 0 to 7 or 7 to 0. * @block_size: Maximum block size supported by the controller @@ -49,6 +52,7 @@ struct dw_dma_platform_data { unsigned int nr_channels; bool is_private; bool is_memcpy; + bool is_nollp; #define CHAN_ALLOCATION_ASCENDING 0 /* zero to seven */ #define CHAN_ALLOCATION_DESCENDING 1 /* seven to zero */ unsigned char chan_allocation_order; diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 31fec858088c..a09fe5c009c8 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -51,6 +51,8 @@ struct generic_pm_domain { struct mutex lock; struct dev_power_governor *gov; struct work_struct power_off_work; + struct fwnode_handle *provider; /* Identity of the domain provider */ + bool has_provider; const char *name; atomic_t sd_count; /* Number of subdomains with power "on" */ enum gpd_status status; /* Current state of the domain */ @@ -116,7 +118,6 @@ static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) return to_gpd_data(dev->power.subsys_data->domain_data); } -extern struct generic_pm_domain *pm_genpd_lookup_dev(struct device *dev); extern int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev, struct gpd_timing_data *td); @@ -129,6 +130,7 @@ extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target); extern int pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off); +extern int pm_genpd_remove(struct generic_pm_domain *genpd); extern struct dev_power_governor simple_qos_governor; extern struct dev_power_governor pm_domain_always_on_gov; @@ -138,10 +140,6 @@ static inline struct generic_pm_domain_data *dev_gpd_data(struct device *dev) { return ERR_PTR(-ENOSYS); } -static inline struct generic_pm_domain *pm_genpd_lookup_dev(struct device *dev) -{ - return NULL; -} static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev, struct gpd_timing_data *td) @@ -168,6 +166,10 @@ static inline int pm_genpd_init(struct generic_pm_domain *genpd, { return -ENOSYS; } +static inline int pm_genpd_remove(struct generic_pm_domain *genpd) +{ + return -ENOTSUPP; +} #endif static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, @@ -192,57 +194,57 @@ struct genpd_onecell_data { unsigned int num_domains; }; -typedef struct generic_pm_domain *(*genpd_xlate_t)(struct of_phandle_args *args, - void *data); - #ifdef CONFIG_PM_GENERIC_DOMAINS_OF -int __of_genpd_add_provider(struct device_node *np, genpd_xlate_t xlate, - void *data); +int of_genpd_add_provider_simple(struct device_node *np, + struct generic_pm_domain *genpd); +int of_genpd_add_provider_onecell(struct device_node *np, + struct genpd_onecell_data *data); void of_genpd_del_provider(struct device_node *np); -struct generic_pm_domain *of_genpd_get_from_provider( - struct of_phandle_args *genpdspec); - -struct generic_pm_domain *__of_genpd_xlate_simple( - struct of_phandle_args *genpdspec, - void *data); -struct generic_pm_domain *__of_genpd_xlate_onecell( - struct of_phandle_args *genpdspec, - void *data); +extern int of_genpd_add_device(struct of_phandle_args *args, + struct device *dev); +extern int of_genpd_add_subdomain(struct of_phandle_args *parent, + struct of_phandle_args *new_subdomain); +extern struct generic_pm_domain *of_genpd_remove_last(struct device_node *np); int genpd_dev_pm_attach(struct device *dev); #else /* !CONFIG_PM_GENERIC_DOMAINS_OF */ -static inline int __of_genpd_add_provider(struct device_node *np, - genpd_xlate_t xlate, void *data) +static inline int of_genpd_add_provider_simple(struct device_node *np, + struct generic_pm_domain *genpd) { - return 0; + return -ENOTSUPP; } -static inline void of_genpd_del_provider(struct device_node *np) {} -static inline struct generic_pm_domain *of_genpd_get_from_provider( - struct of_phandle_args *genpdspec) +static inline int of_genpd_add_provider_onecell(struct device_node *np, + struct genpd_onecell_data *data) { - return NULL; + return -ENOTSUPP; } -#define __of_genpd_xlate_simple NULL -#define __of_genpd_xlate_onecell NULL +static inline void of_genpd_del_provider(struct device_node *np) {} -static inline int genpd_dev_pm_attach(struct device *dev) +static inline int of_genpd_add_device(struct of_phandle_args *args, + struct device *dev) { return -ENODEV; } -#endif /* CONFIG_PM_GENERIC_DOMAINS_OF */ -static inline int of_genpd_add_provider_simple(struct device_node *np, - struct generic_pm_domain *genpd) +static inline int of_genpd_add_subdomain(struct of_phandle_args *parent, + struct of_phandle_args *new_subdomain) { - return __of_genpd_add_provider(np, __of_genpd_xlate_simple, genpd); + return -ENODEV; } -static inline int of_genpd_add_provider_onecell(struct device_node *np, - struct genpd_onecell_data *data) + +static inline int genpd_dev_pm_attach(struct device *dev) +{ + return -ENODEV; +} + +static inline +struct generic_pm_domain *of_genpd_remove_last(struct device_node *np) { - return __of_genpd_add_provider(np, __of_genpd_xlate_onecell, data); + return ERR_PTR(-ENOTSUPP); } +#endif /* CONFIG_PM_GENERIC_DOMAINS_OF */ #ifdef CONFIG_PM extern int dev_pm_domain_attach(struct device *dev, bool power_on); diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 2a097d176ba9..2d6f0c39ed68 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -83,7 +83,6 @@ #define SSSR_RFS (1 << 6) /* Receive FIFO Service Request */ #define SSSR_ROR (1 << 7) /* Receive FIFO Overrun */ -#ifdef CONFIG_ARCH_PXA #define RX_THRESH_DFLT 8 #define TX_THRESH_DFLT 8 @@ -95,19 +94,16 @@ #define SSCR1_RFT (0x00003c00) /* Receive FIFO Threshold (mask) */ #define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..16] */ -#else - -#define RX_THRESH_DFLT 2 -#define TX_THRESH_DFLT 2 +#define RX_THRESH_CE4100_DFLT 2 +#define TX_THRESH_CE4100_DFLT 2 -#define SSSR_TFL_MASK (0x3 << 8) /* Transmit FIFO Level mask */ -#define SSSR_RFL_MASK (0x3 << 12) /* Receive FIFO Level mask */ +#define CE4100_SSSR_TFL_MASK (0x3 << 8) /* Transmit FIFO Level mask */ +#define CE4100_SSSR_RFL_MASK (0x3 << 12) /* Receive FIFO Level mask */ -#define SSCR1_TFT (0x000000c0) /* Transmit FIFO Threshold (mask) */ -#define SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..4] */ -#define SSCR1_RFT (0x00000c00) /* Receive FIFO Threshold (mask) */ -#define SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..4] */ -#endif +#define CE4100_SSCR1_TFT (0x000000c0) /* Transmit FIFO Threshold (mask) */ +#define CE4100_SSCR1_TxTresh(x) (((x) - 1) << 6) /* level [1..4] */ +#define CE4100_SSCR1_RFT (0x00000c00) /* Receive FIFO Threshold (mask) */ +#define CE4100_SSCR1_RxTresh(x) (((x) - 1) << 10) /* level [1..4] */ /* QUARK_X1000 SSCR0 bit definition */ #define QUARK_X1000_SSCR0_DSS (0x1F) /* Data Size Select (mask) */ diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 4c45105dece3..52b97db93830 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -280,9 +280,9 @@ bool __radix_tree_delete_node(struct radix_tree_root *root, struct radix_tree_node *node); void *radix_tree_delete_item(struct radix_tree_root *, unsigned long, void *); void *radix_tree_delete(struct radix_tree_root *, unsigned long); -struct radix_tree_node *radix_tree_replace_clear_tags( - struct radix_tree_root *root, - unsigned long index, void *entry); +void radix_tree_clear_tags(struct radix_tree_root *root, + struct radix_tree_node *node, + void **slot); unsigned int radix_tree_gang_lookup(struct radix_tree_root *root, void **results, unsigned long first_index, unsigned int max_items); diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h index a0118d5929a9..395a4c674168 100644 --- a/include/linux/raid/pq.h +++ b/include/linux/raid/pq.h @@ -103,6 +103,7 @@ extern const struct raid6_calls raid6_avx2x1; extern const struct raid6_calls raid6_avx2x2; extern const struct raid6_calls raid6_avx2x4; extern const struct raid6_calls raid6_tilegx8; +extern const struct raid6_calls raid6_s390vx8; struct raid6_recov_calls { void (*data2)(int, size_t, int, int, void **); @@ -115,6 +116,7 @@ struct raid6_recov_calls { extern const struct raid6_recov_calls raid6_recov_intx1; extern const struct raid6_recov_calls raid6_recov_ssse3; extern const struct raid6_recov_calls raid6_recov_avx2; +extern const struct raid6_recov_calls raid6_recov_s390xc; extern const struct raid6_calls raid6_neonx1; extern const struct raid6_calls raid6_neonx2; diff --git a/include/linux/rcu_sync.h b/include/linux/rcu_sync.h index a63a33e6196e..ece7ed9a4a70 100644 --- a/include/linux/rcu_sync.h +++ b/include/linux/rcu_sync.h @@ -59,6 +59,7 @@ static inline bool rcu_sync_is_idle(struct rcu_sync *rsp) } extern void rcu_sync_init(struct rcu_sync *, enum rcu_sync_type); +extern void rcu_sync_enter_start(struct rcu_sync *); extern void rcu_sync_enter(struct rcu_sync *); extern void rcu_sync_exit(struct rcu_sync *); extern void rcu_sync_dtor(struct rcu_sync *); diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 1aa62e1a761b..321f9ed552a9 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -334,6 +334,7 @@ void rcu_sched_qs(void); void rcu_bh_qs(void); void rcu_check_callbacks(int user); void rcu_report_dead(unsigned int cpu); +void rcu_cpu_starting(unsigned int cpu); #ifndef CONFIG_TINY_RCU void rcu_end_inkernel_boot(void); diff --git a/include/linux/regmap.h b/include/linux/regmap.h index 2c12cc5af744..9adc7b21903d 100644 --- a/include/linux/regmap.h +++ b/include/linux/regmap.h @@ -241,9 +241,9 @@ typedef void (*regmap_unlock)(void *); * register cache support). * @num_reg_defaults: Number of elements in reg_defaults. * - * @read_flag_mask: Mask to be set in the top byte of the register when doing + * @read_flag_mask: Mask to be set in the top bytes of the register when doing * a read. - * @write_flag_mask: Mask to be set in the top byte of the register when doing + * @write_flag_mask: Mask to be set in the top bytes of the register when doing * a write. If both read_flag_mask and write_flag_mask are * empty the regmap_bus default masks are used. * @use_single_rw: If set, converts the bulk read and write operations into @@ -299,8 +299,8 @@ struct regmap_config { const void *reg_defaults_raw; unsigned int num_reg_defaults_raw; - u8 read_flag_mask; - u8 write_flag_mask; + unsigned long read_flag_mask; + unsigned long write_flag_mask; bool use_single_rw; bool can_multi_write; diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index cae500b2c1d7..692108222271 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -140,8 +140,6 @@ struct regulator; * * @supply: The name of the supply. Initialised by the user before * using the bulk regulator APIs. - * @optional: The supply should be considered optional. Initialised by the user - * before using the bulk regulator APIs. * @consumer: The regulator consumer for the supply. This will be managed * by the bulk API. * @@ -151,7 +149,6 @@ struct regulator; */ struct regulator_bulk_data { const char *supply; - bool optional; struct regulator *consumer; /* private: Internal use */ diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index fcfa40a6692c..37b532410528 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -113,10 +113,14 @@ struct regulator_linear_range { * stabilise after being enabled, in microseconds. * @set_ramp_delay: Set the ramp delay for the regulator. The driver should * select ramp delay equal to or less than(closest) ramp_delay. + * @set_voltage_time: Time taken for the regulator voltage output voltage + * to stabilise after being set to a new value, in microseconds. + * The function receives the from and to voltage as input, it + * should return the worst case. * @set_voltage_time_sel: Time taken for the regulator voltage output voltage * to stabilise after being set to a new value, in microseconds. - * The function provides the from and to voltage selector, the - * function should return the worst case. + * The function receives the from and to voltage selector as + * input, it should return the worst case. * @set_soft_start: Enable soft start for the regulator. * * @set_suspend_voltage: Set the voltage for the regulator when the system @@ -168,6 +172,8 @@ struct regulator_ops { /* Time taken to enable or set voltage on the regulator */ int (*enable_time) (struct regulator_dev *); int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay); + int (*set_voltage_time) (struct regulator_dev *, int old_uV, + int new_uV); int (*set_voltage_time_sel) (struct regulator_dev *, unsigned int old_selector, unsigned int new_selector); diff --git a/include/linux/relay.h b/include/linux/relay.h index d7c8359693c6..ecbb34a382b8 100644 --- a/include/linux/relay.h +++ b/include/linux/relay.h @@ -19,6 +19,7 @@ #include <linux/fs.h> #include <linux/poll.h> #include <linux/kref.h> +#include <linux/percpu.h> /* * Tracks changes to rchan/rchan_buf structs @@ -63,7 +64,7 @@ struct rchan struct kref kref; /* channel refcount */ void *private_data; /* for user-defined data */ size_t last_toobig; /* tried to log event > subbuf size */ - struct rchan_buf *buf[NR_CPUS]; /* per-cpu channel buffers */ + struct rchan_buf ** __percpu buf; /* per-cpu channel buffers */ int is_global; /* One global buffer ? */ struct list_head list; /* for channel list */ struct dentry *parent; /* parent dentry passed to open */ @@ -204,7 +205,7 @@ static inline void relay_write(struct rchan *chan, struct rchan_buf *buf; local_irq_save(flags); - buf = chan->buf[smp_processor_id()]; + buf = *this_cpu_ptr(chan->buf); if (unlikely(buf->offset + length > chan->subbuf_size)) length = relay_switch_subbuf(buf, length); memcpy(buf->data + buf->offset, data, length); @@ -230,12 +231,12 @@ static inline void __relay_write(struct rchan *chan, { struct rchan_buf *buf; - buf = chan->buf[get_cpu()]; + buf = *get_cpu_ptr(chan->buf); if (unlikely(buf->offset + length > buf->chan->subbuf_size)) length = relay_switch_subbuf(buf, length); memcpy(buf->data + buf->offset, data, length); buf->offset += length; - put_cpu(); + put_cpu_ptr(chan->buf); } /** @@ -251,17 +252,19 @@ static inline void __relay_write(struct rchan *chan, */ static inline void *relay_reserve(struct rchan *chan, size_t length) { - void *reserved; - struct rchan_buf *buf = chan->buf[smp_processor_id()]; + void *reserved = NULL; + struct rchan_buf *buf = *get_cpu_ptr(chan->buf); if (unlikely(buf->offset + length > buf->chan->subbuf_size)) { length = relay_switch_subbuf(buf, length); if (!length) - return NULL; + goto end; } reserved = buf->data + buf->offset; buf->offset += length; +end: + put_cpu_ptr(chan->buf); return reserved; } @@ -285,5 +288,11 @@ static inline void subbuf_start_reserve(struct rchan_buf *buf, */ extern const struct file_operations relay_file_operations; +#ifdef CONFIG_RELAY +int relay_prepare_cpu(unsigned int cpu); +#else +#define relay_prepare_cpu NULL +#endif + #endif /* _LINUX_RELAY_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index 62c68e513e39..7543a476178b 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -448,6 +448,8 @@ static inline void io_schedule(void) io_schedule_timeout(MAX_SCHEDULE_TIMEOUT); } +void __noreturn do_task_dead(void); + struct nsproxy; struct user_namespace; @@ -1022,7 +1024,8 @@ extern void wake_up_q(struct wake_q_head *head); #define SD_BALANCE_FORK 0x0008 /* Balance on fork, clone */ #define SD_BALANCE_WAKE 0x0010 /* Balance on wakeup */ #define SD_WAKE_AFFINE 0x0020 /* Wake task to waking CPU */ -#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share cpu power */ +#define SD_ASYM_CPUCAPACITY 0x0040 /* Groups have different max cpu capacities */ +#define SD_SHARE_CPUCAPACITY 0x0080 /* Domain members share cpu capacity */ #define SD_SHARE_POWERDOMAIN 0x0100 /* Domain members share power domain */ #define SD_SHARE_PKG_RESOURCES 0x0200 /* Domain members share cpu pkg resources */ #define SD_SERIALIZE 0x0400 /* Only a single load balancing instance */ @@ -1064,6 +1067,12 @@ extern int sched_domain_level_max; struct sched_group; +struct sched_domain_shared { + atomic_t ref; + atomic_t nr_busy_cpus; + int has_idle_cores; +}; + struct sched_domain { /* These fields must be setup */ struct sched_domain *parent; /* top domain must be null terminated */ @@ -1094,6 +1103,8 @@ struct sched_domain { u64 max_newidle_lb_cost; unsigned long next_decay_max_lb_cost; + u64 avg_scan_cost; /* select_idle_sibling */ + #ifdef CONFIG_SCHEDSTATS /* load_balance() stats */ unsigned int lb_count[CPU_MAX_IDLE_TYPES]; @@ -1132,6 +1143,7 @@ struct sched_domain { void *private; /* used during construction */ struct rcu_head rcu; /* used during destruction */ }; + struct sched_domain_shared *shared; unsigned int span_weight; /* @@ -1165,6 +1177,7 @@ typedef int (*sched_domain_flags_f)(void); struct sd_data { struct sched_domain **__percpu sd; + struct sched_domain_shared **__percpu sds; struct sched_group **__percpu sg; struct sched_group_capacity **__percpu sgc; }; @@ -1458,6 +1471,13 @@ struct tlbflush_unmap_batch { }; struct task_struct { +#ifdef CONFIG_THREAD_INFO_IN_TASK + /* + * For reasons of header soup (see current_thread_info()), this + * must be the first element of task_struct. + */ + struct thread_info thread_info; +#endif volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ void *stack; atomic_t usage; @@ -1467,6 +1487,9 @@ struct task_struct { #ifdef CONFIG_SMP struct llist_node wake_entry; int on_cpu; +#ifdef CONFIG_THREAD_INFO_IN_TASK + unsigned int cpu; /* current CPU */ +#endif unsigned int wakee_flips; unsigned long wakee_flip_decay_ts; struct task_struct *last_wakee; @@ -1923,6 +1946,13 @@ struct task_struct { #ifdef CONFIG_MMU struct task_struct *oom_reaper_list; #endif +#ifdef CONFIG_VMAP_STACK + struct vm_struct *stack_vm_area; +#endif +#ifdef CONFIG_THREAD_INFO_IN_TASK + /* A live task holds one reference. */ + atomic_t stack_refcount; +#endif /* CPU-specific state of this task */ struct thread_struct thread; /* @@ -1939,6 +1969,18 @@ extern int arch_task_struct_size __read_mostly; # define arch_task_struct_size (sizeof(struct task_struct)) #endif +#ifdef CONFIG_VMAP_STACK +static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) +{ + return t->stack_vm_area; +} +#else +static inline struct vm_struct *task_stack_vm_area(const struct task_struct *t) +{ + return NULL; +} +#endif + /* Future-safe accessor for struct task_struct's cpus_allowed. */ #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed) @@ -2568,12 +2610,14 @@ static inline bool is_idle_task(const struct task_struct *p) return p->pid == 0; } extern struct task_struct *curr_task(int cpu); -extern void set_curr_task(int cpu, struct task_struct *p); +extern void ia64_set_curr_task(int cpu, struct task_struct *p); void yield(void); union thread_union { +#ifndef CONFIG_THREAD_INFO_IN_TASK struct thread_info thread_info; +#endif unsigned long stack[THREAD_SIZE/sizeof(long)]; }; @@ -3061,10 +3105,34 @@ static inline void threadgroup_change_end(struct task_struct *tsk) cgroup_threadgroup_change_end(tsk); } -#ifndef __HAVE_THREAD_FUNCTIONS +#ifdef CONFIG_THREAD_INFO_IN_TASK + +static inline struct thread_info *task_thread_info(struct task_struct *task) +{ + return &task->thread_info; +} + +/* + * When accessing the stack of a non-current task that might exit, use + * try_get_task_stack() instead. task_stack_page will return a pointer + * that could get freed out from under you. + */ +static inline void *task_stack_page(const struct task_struct *task) +{ + return task->stack; +} + +#define setup_thread_stack(new,old) do { } while(0) + +static inline unsigned long *end_of_stack(const struct task_struct *task) +{ + return task->stack; +} + +#elif !defined(__HAVE_THREAD_FUNCTIONS) #define task_thread_info(task) ((struct thread_info *)(task)->stack) -#define task_stack_page(task) ((task)->stack) +#define task_stack_page(task) ((void *)(task)->stack) static inline void setup_thread_stack(struct task_struct *p, struct task_struct *org) { @@ -3091,6 +3159,24 @@ static inline unsigned long *end_of_stack(struct task_struct *p) } #endif + +#ifdef CONFIG_THREAD_INFO_IN_TASK +static inline void *try_get_task_stack(struct task_struct *tsk) +{ + return atomic_inc_not_zero(&tsk->stack_refcount) ? + task_stack_page(tsk) : NULL; +} + +extern void put_task_stack(struct task_struct *tsk); +#else +static inline void *try_get_task_stack(struct task_struct *tsk) +{ + return task_stack_page(tsk); +} + +static inline void put_task_stack(struct task_struct *tsk) {} +#endif + #define task_stack_end_corrupted(task) \ (*(end_of_stack(task)) != STACK_END_MAGIC) @@ -3206,7 +3292,11 @@ static inline int signal_pending_state(long state, struct task_struct *p) * cond_resched_lock() will drop the spinlock before scheduling, * cond_resched_softirq() will enable bhs before scheduling. */ +#ifndef CONFIG_PREEMPT extern int _cond_resched(void); +#else +static inline int _cond_resched(void) { return 0; } +#endif #define cond_resched() ({ \ ___might_sleep(__FILE__, __LINE__, 0); \ @@ -3236,6 +3326,15 @@ static inline void cond_resched_rcu(void) #endif } +static inline unsigned long get_preempt_disable_ip(struct task_struct *p) +{ +#ifdef CONFIG_DEBUG_PREEMPT + return p->preempt_disable_ip; +#else + return 0; +#endif +} + /* * Does a critical section need to be broken due to another * task waiting?: (technically does not depend on CONFIG_PREEMPT, @@ -3364,7 +3463,11 @@ static inline void ptrace_signal_wake_up(struct task_struct *t, bool resume) static inline unsigned int task_cpu(const struct task_struct *p) { +#ifdef CONFIG_THREAD_INFO_IN_TASK + return p->cpu; +#else return task_thread_info(p)->cpu; +#endif } static inline int task_node(const struct task_struct *p) @@ -3469,15 +3572,20 @@ static inline unsigned long rlimit_max(unsigned int limit) return task_rlimit_max(current, limit); } +#define SCHED_CPUFREQ_RT (1U << 0) +#define SCHED_CPUFREQ_DL (1U << 1) +#define SCHED_CPUFREQ_IOWAIT (1U << 2) + +#define SCHED_CPUFREQ_RT_DL (SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL) + #ifdef CONFIG_CPU_FREQ struct update_util_data { - void (*func)(struct update_util_data *data, - u64 time, unsigned long util, unsigned long max); + void (*func)(struct update_util_data *data, u64 time, unsigned int flags); }; void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data, - void (*func)(struct update_util_data *data, u64 time, - unsigned long util, unsigned long max)); + void (*func)(struct update_util_data *data, u64 time, + unsigned int flags)); void cpufreq_remove_update_util_hook(int cpu); #endif /* CONFIG_CPU_FREQ */ diff --git a/include/linux/security.h b/include/linux/security.h index 7831cd57bcf7..c2125e9093e8 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -242,6 +242,10 @@ int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts); int security_dentry_init_security(struct dentry *dentry, int mode, const struct qstr *name, void **ctx, u32 *ctxlen); +int security_dentry_create_files_as(struct dentry *dentry, int mode, + struct qstr *name, + const struct cred *old, + struct cred *new); int security_inode_alloc(struct inode *inode); void security_inode_free(struct inode *inode); @@ -282,6 +286,8 @@ int security_inode_getsecurity(struct inode *inode, const char *name, void **buf int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags); int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size); void security_inode_getsecid(struct inode *inode, u32 *secid); +int security_inode_copy_up(struct dentry *src, struct cred **new); +int security_inode_copy_up_xattr(const char *name); int security_file_permission(struct file *file, int mask); int security_file_alloc(struct file *file); void security_file_free(struct file *file); @@ -307,7 +313,6 @@ void security_transfer_creds(struct cred *new, const struct cred *old); int security_kernel_act_as(struct cred *new, u32 secid); int security_kernel_create_files_as(struct cred *new, struct inode *inode); int security_kernel_module_request(char *kmod_name); -int security_kernel_module_from_file(struct file *file); int security_kernel_read_file(struct file *file, enum kernel_read_file_id id); int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, enum kernel_read_file_id id); @@ -598,6 +603,14 @@ static inline int security_dentry_init_security(struct dentry *dentry, return -EOPNOTSUPP; } +static inline int security_dentry_create_files_as(struct dentry *dentry, + int mode, struct qstr *name, + const struct cred *old, + struct cred *new) +{ + return 0; +} + static inline int security_inode_init_security(struct inode *inode, struct inode *dir, @@ -758,6 +771,16 @@ static inline void security_inode_getsecid(struct inode *inode, u32 *secid) *secid = 0; } +static inline int security_inode_copy_up(struct dentry *src, struct cred **new) +{ + return 0; +} + +static inline int security_inode_copy_up_xattr(const char *name) +{ + return -EOPNOTSUPP; +} + static inline int security_file_permission(struct file *file, int mask) { return 0; diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 2f44e2013654..344201437017 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -367,14 +367,21 @@ extern const struct earlycon_id __earlycon_table_end[]; #define EARLYCON_DECLARE(_name, fn) OF_EARLYCON_DECLARE(_name, "", fn) -extern int setup_earlycon(char *buf); extern int of_setup_earlycon(const struct earlycon_id *match, unsigned long node, const char *options); +#ifdef CONFIG_SERIAL_EARLYCON +extern bool earlycon_init_is_deferred __initdata; +int setup_earlycon(char *buf); +#else +static const bool earlycon_init_is_deferred; +static inline int setup_earlycon(char *buf) { return 0; } +#endif + struct uart_port *uart_get_console(struct uart_port *ports, int nr, struct console *c); -int uart_parse_earlycon(char *p, unsigned char *iotype, unsigned long *addr, +int uart_parse_earlycon(char *p, unsigned char *iotype, resource_size_t *addr, char **options); void uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow); @@ -412,7 +419,7 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port); static inline int uart_tx_stopped(struct uart_port *port) { struct tty_struct *tty = port->state->port.tty; - if (tty->stopped || port->hw_stopped) + if ((tty && tty->stopped) || port->hw_stopped) return 1; return 0; } diff --git a/include/linux/slab.h b/include/linux/slab.h index 4293808d8cfb..084b12bad198 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -650,4 +650,12 @@ static inline void *kzalloc_node(size_t size, gfp_t flags, int node) unsigned int kmem_cache_size(struct kmem_cache *s); void __init kmem_cache_init_late(void); +#if defined(CONFIG_SMP) && defined(CONFIG_SLAB) +int slab_prepare_cpu(unsigned int cpu); +int slab_dead_cpu(unsigned int cpu); +#else +#define slab_prepare_cpu NULL +#define slab_dead_cpu NULL +#endif + #endif /* _LINUX_SLAB_H */ diff --git a/include/linux/smp.h b/include/linux/smp.h index eccae4690f41..8e0cb7a0f836 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -196,6 +196,9 @@ extern void arch_enable_nonboot_cpus_end(void); void smp_setup_processor_id(void); +int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), void *par, + bool phys); + /* SMP core functions */ int smpcfd_prepare_cpu(unsigned int cpu); int smpcfd_dead_cpu(unsigned int cpu); diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 072cb2aa2413..4b743ac35396 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -312,6 +312,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * @flags: other constraints relevant to this driver * @max_transfer_size: function that returns the max transfer size for * a &spi_device; may be %NULL, so the default %SIZE_MAX will be used. + * @max_message_size: function that returns the max message size for + * a &spi_device; may be %NULL, so the default %SIZE_MAX will be used. * @io_mutex: mutex for physical bus access * @bus_lock_spinlock: spinlock for SPI bus locking * @bus_lock_mutex: mutex for exclusion of multiple callers @@ -442,10 +444,11 @@ struct spi_master { #define SPI_MASTER_MUST_TX BIT(4) /* requires tx */ /* - * on some hardware transfer size may be constrained + * on some hardware transfer / message size may be constrained * the limit may depend on device transfer settings */ size_t (*max_transfer_size)(struct spi_device *spi); + size_t (*max_message_size)(struct spi_device *spi); /* I/O mutex */ struct mutex io_mutex; @@ -905,12 +908,26 @@ extern int spi_async_locked(struct spi_device *spi, struct spi_message *message); static inline size_t -spi_max_transfer_size(struct spi_device *spi) +spi_max_message_size(struct spi_device *spi) { struct spi_master *master = spi->master; - if (!master->max_transfer_size) + if (!master->max_message_size) return SIZE_MAX; - return master->max_transfer_size(spi); + return master->max_message_size(spi); +} + +static inline size_t +spi_max_transfer_size(struct spi_device *spi) +{ + struct spi_master *master = spi->master; + size_t tr_max = SIZE_MAX; + size_t msg_max = spi_max_message_size(spi); + + if (master->max_transfer_size) + tr_max = master->max_transfer_size(spi); + + /* transfer size limit must not be greater than messsage size limit */ + return min(tr_max, msg_max); } /*---------------------------------------------------------------------------*/ @@ -980,6 +997,30 @@ extern int spi_bus_lock(struct spi_master *master); extern int spi_bus_unlock(struct spi_master *master); /** + * spi_sync_transfer - synchronous SPI data transfer + * @spi: device with which data will be exchanged + * @xfers: An array of spi_transfers + * @num_xfers: Number of items in the xfer array + * Context: can sleep + * + * Does a synchronous SPI data transfer of the given spi_transfer array. + * + * For more specific semantics see spi_sync(). + * + * Return: Return: zero on success, else a negative error code. + */ +static inline int +spi_sync_transfer(struct spi_device *spi, struct spi_transfer *xfers, + unsigned int num_xfers) +{ + struct spi_message msg; + + spi_message_init_with_transfers(&msg, xfers, num_xfers); + + return spi_sync(spi, &msg); +} + +/** * spi_write - SPI synchronous write * @spi: device to which data will be written * @buf: data buffer @@ -998,11 +1039,8 @@ spi_write(struct spi_device *spi, const void *buf, size_t len) .tx_buf = buf, .len = len, }; - struct spi_message m; - spi_message_init(&m); - spi_message_add_tail(&t, &m); - return spi_sync(spi, &m); + return spi_sync_transfer(spi, &t, 1); } /** @@ -1024,35 +1062,8 @@ spi_read(struct spi_device *spi, void *buf, size_t len) .rx_buf = buf, .len = len, }; - struct spi_message m; - - spi_message_init(&m); - spi_message_add_tail(&t, &m); - return spi_sync(spi, &m); -} -/** - * spi_sync_transfer - synchronous SPI data transfer - * @spi: device with which data will be exchanged - * @xfers: An array of spi_transfers - * @num_xfers: Number of items in the xfer array - * Context: can sleep - * - * Does a synchronous SPI data transfer of the given spi_transfer array. - * - * For more specific semantics see spi_sync(). - * - * Return: Return: zero on success, else a negative error code. - */ -static inline int -spi_sync_transfer(struct spi_device *spi, struct spi_transfer *xfers, - unsigned int num_xfers) -{ - struct spi_message msg; - - spi_message_init_with_transfers(&msg, xfers, num_xfers); - - return spi_sync(spi, &msg); + return spi_sync_transfer(spi, &t, 1); } /* this copies txbuf and rxbuf data; for small transfers only! */ diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 7693e39b14fe..d9718378a8be 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -245,6 +245,7 @@ static inline bool idle_should_freeze(void) return unlikely(suspend_freeze_state == FREEZE_STATE_ENTER); } +extern void __init pm_states_init(void); extern void freeze_set_ops(const struct platform_freeze_ops *ops); extern void freeze_wake(void); @@ -279,6 +280,7 @@ static inline bool pm_resume_via_firmware(void) { return false; } static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {} static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; } static inline bool idle_should_freeze(void) { return false; } +static inline void __init pm_states_init(void) {} static inline void freeze_set_ops(const struct platform_freeze_ops *ops) {} static inline void freeze_wake(void) {} #endif /* !CONFIG_SUSPEND */ diff --git a/include/linux/swap.h b/include/linux/swap.h index 4a529c984a3f..e1d761463243 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -257,7 +257,7 @@ static inline void workingset_node_pages_inc(struct radix_tree_node *node) static inline void workingset_node_pages_dec(struct radix_tree_node *node) { - VM_BUG_ON(!workingset_node_pages(node)); + VM_WARN_ON_ONCE(!workingset_node_pages(node)); node->count--; } @@ -273,7 +273,7 @@ static inline void workingset_node_shadows_inc(struct radix_tree_node *node) static inline void workingset_node_shadows_dec(struct radix_tree_node *node) { - VM_BUG_ON(!workingset_node_shadows(node)); + VM_WARN_ON_ONCE(!workingset_node_shadows(node)); node->count -= 1U << RADIX_TREE_COUNT_SHIFT; } diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 2b5b10eed74f..45f004e9cc59 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -13,6 +13,21 @@ struct timespec; struct compat_timespec; +#ifdef CONFIG_THREAD_INFO_IN_TASK +struct thread_info { + unsigned long flags; /* low level flags */ +}; + +#define INIT_THREAD_INFO(tsk) \ +{ \ + .flags = 0, \ +} +#endif + +#ifdef CONFIG_THREAD_INFO_IN_TASK +#define current_thread_info() ((struct thread_info *)current) +#endif + /* * System call restart block. */ diff --git a/include/linux/time64.h b/include/linux/time64.h index 7e5d2fa9ac46..980c71b3001a 100644 --- a/include/linux/time64.h +++ b/include/linux/time64.h @@ -5,6 +5,7 @@ #include <linux/math64.h> typedef __s64 time64_t; +typedef __u64 timeu64_t; /* * This wants to go into uapi/linux/time.h once we agreed about the diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index 816b7543f81b..09168c52ab64 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -1,7 +1,7 @@ #ifndef _LINUX_TIMEKEEPING_H #define _LINUX_TIMEKEEPING_H -#include <asm-generic/errno-base.h> +#include <linux/errno.h> /* Included from linux/ktime.h */ diff --git a/include/linux/torture.h b/include/linux/torture.h index 6685a73736a2..a45702eb3e7b 100644 --- a/include/linux/torture.h +++ b/include/linux/torture.h @@ -43,7 +43,7 @@ #define TORTURE_FLAG "-torture:" #define TOROUT_STRING(s) \ - pr_alert("%s" TORTURE_FLAG s "\n", torture_type) + pr_alert("%s" TORTURE_FLAG " %s\n", torture_type, s) #define VERBOSE_TOROUT_STRING(s) \ do { if (verbose) pr_alert("%s" TORTURE_FLAG " %s\n", torture_type, s); } while (0) #define VERBOSE_TOROUT_ERRSTRING(s) \ diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h index d3a2bb712af3..650f3dd6b800 100644 --- a/include/linux/u64_stats_sync.h +++ b/include/linux/u64_stats_sync.h @@ -103,31 +103,42 @@ static inline void u64_stats_update_end_raw(struct u64_stats_sync *syncp) #endif } -static inline unsigned int u64_stats_fetch_begin(const struct u64_stats_sync *syncp) +static inline unsigned int __u64_stats_fetch_begin(const struct u64_stats_sync *syncp) { #if BITS_PER_LONG==32 && defined(CONFIG_SMP) return read_seqcount_begin(&syncp->seq); #else -#if BITS_PER_LONG==32 - preempt_disable(); -#endif return 0; #endif } -static inline bool u64_stats_fetch_retry(const struct u64_stats_sync *syncp, +static inline unsigned int u64_stats_fetch_begin(const struct u64_stats_sync *syncp) +{ +#if BITS_PER_LONG==32 && !defined(CONFIG_SMP) + preempt_disable(); +#endif + return __u64_stats_fetch_begin(syncp); +} + +static inline bool __u64_stats_fetch_retry(const struct u64_stats_sync *syncp, unsigned int start) { #if BITS_PER_LONG==32 && defined(CONFIG_SMP) return read_seqcount_retry(&syncp->seq, start); #else -#if BITS_PER_LONG==32 - preempt_enable(); -#endif return false; #endif } +static inline bool u64_stats_fetch_retry(const struct u64_stats_sync *syncp, + unsigned int start) +{ +#if BITS_PER_LONG==32 && !defined(CONFIG_SMP) + preempt_enable(); +#endif + return __u64_stats_fetch_retry(syncp, start); +} + /* * In case irq handlers can update u64 counters, readers can use following helpers * - SMP 32bit arches use seqcount protection, irq safe. @@ -136,27 +147,19 @@ static inline bool u64_stats_fetch_retry(const struct u64_stats_sync *syncp, */ static inline unsigned int u64_stats_fetch_begin_irq(const struct u64_stats_sync *syncp) { -#if BITS_PER_LONG==32 && defined(CONFIG_SMP) - return read_seqcount_begin(&syncp->seq); -#else -#if BITS_PER_LONG==32 +#if BITS_PER_LONG==32 && !defined(CONFIG_SMP) local_irq_disable(); #endif - return 0; -#endif + return __u64_stats_fetch_begin(syncp); } static inline bool u64_stats_fetch_retry_irq(const struct u64_stats_sync *syncp, - unsigned int start) + unsigned int start) { -#if BITS_PER_LONG==32 && defined(CONFIG_SMP) - return read_seqcount_retry(&syncp->seq, start); -#else -#if BITS_PER_LONG==32 +#if BITS_PER_LONG==32 && !defined(CONFIG_SMP) local_irq_enable(); #endif - return false; -#endif + return __u64_stats_fetch_retry(syncp, start); } #endif /* _LINUX_U64_STATS_SYNC_H */ diff --git a/include/linux/ulpi/driver.h b/include/linux/ulpi/driver.h index 388f6e08b9d4..a7af21a55248 100644 --- a/include/linux/ulpi/driver.h +++ b/include/linux/ulpi/driver.h @@ -15,7 +15,7 @@ struct ulpi_ops; */ struct ulpi { struct ulpi_device_id id; - struct ulpi_ops *ops; + const struct ulpi_ops *ops; struct device dev; }; @@ -47,7 +47,11 @@ struct ulpi_driver { #define to_ulpi_driver(d) container_of(d, struct ulpi_driver, driver) -int ulpi_register_driver(struct ulpi_driver *drv); +/* + * use a macro to avoid include chaining to get THIS_MODULE + */ +#define ulpi_register_driver(drv) __ulpi_register_driver(drv, THIS_MODULE) +int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module); void ulpi_unregister_driver(struct ulpi_driver *drv); #define module_ulpi_driver(__ulpi_driver) \ diff --git a/include/linux/ulpi/interface.h b/include/linux/ulpi/interface.h index 4de8ab491038..a2011a919eb6 100644 --- a/include/linux/ulpi/interface.h +++ b/include/linux/ulpi/interface.h @@ -4,20 +4,19 @@ #include <linux/types.h> struct ulpi; +struct device; /** * struct ulpi_ops - ULPI register access - * @dev: the interface provider * @read: read operation for ULPI register access * @write: write operation for ULPI register access */ struct ulpi_ops { - struct device *dev; - int (*read)(struct ulpi_ops *ops, u8 addr); - int (*write)(struct ulpi_ops *ops, u8 addr, u8 val); + int (*read)(struct device *dev, u8 addr); + int (*write)(struct device *dev, u8 addr, u8 val); }; -struct ulpi *ulpi_register_interface(struct device *, struct ulpi_ops *); +struct ulpi *ulpi_register_interface(struct device *, const struct ulpi_ops *); void ulpi_unregister_interface(struct ulpi *); #endif /* __LINUX_ULPI_INTERFACE_H */ diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index 2b81b24eb5aa..4616a49a1c2e 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -220,7 +220,8 @@ struct usb_function { int (*setup)(struct usb_function *, const struct usb_ctrlrequest *); bool (*req_match)(struct usb_function *, - const struct usb_ctrlrequest *); + const struct usb_ctrlrequest *, + bool config0); void (*suspend)(struct usb_function *); void (*resume)(struct usb_function *); diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 612dbdfa388e..8e81f9eb95e4 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -346,6 +346,8 @@ struct usb_gadget_ops { * or B-Peripheral wants to take host role. * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to * MaxPacketSize. + * @quirk_avoids_skb_reserve: udc/platform wants to avoid skb_reserve() in + * u_ether.c to improve performance. * @is_selfpowered: if the gadget is self-powered. * @deactivated: True if gadget is deactivated - in deactivated state it cannot * be connected. @@ -398,6 +400,7 @@ struct usb_gadget { unsigned quirk_altset_not_supp:1; unsigned quirk_stall_not_supp:1; unsigned quirk_zlp_not_supp:1; + unsigned quirk_avoids_skb_reserve:1; unsigned is_selfpowered:1; unsigned deactivated:1; unsigned connected:1; @@ -418,8 +421,20 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) list_for_each_entry(tmp, &(gadget)->ep_list, ep_list) /** + * usb_ep_align - returns @len aligned to ep's maxpacketsize. + * @ep: the endpoint whose maxpacketsize is used to align @len + * @len: buffer size's length to align to @ep's maxpacketsize + * + * This helper is used to align buffer's size to an ep's maxpacketsize. + */ +static inline size_t usb_ep_align(struct usb_ep *ep, size_t len) +{ + return round_up(len, (size_t)le16_to_cpu(ep->desc->wMaxPacketSize)); +} + +/** * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget - * requires quirk_ep_out_aligned_size, otherwise reguens len. + * requires quirk_ep_out_aligned_size, otherwise returns len. * @g: controller to check for quirk * @ep: the endpoint whose maxpacketsize is used to align @len * @len: buffer size's length to align to @ep's maxpacketsize @@ -430,8 +445,7 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev) static inline size_t usb_ep_align_maybe(struct usb_gadget *g, struct usb_ep *ep, size_t len) { - return !g->quirk_ep_out_aligned_size ? len : - round_up(len, (size_t)ep->desc->wMaxPacketSize); + return g->quirk_ep_out_aligned_size ? usb_ep_align(ep, len) : len; } /** @@ -463,6 +477,16 @@ static inline int gadget_is_zlp_supported(struct usb_gadget *g) } /** + * gadget_avoids_skb_reserve - return true iff the hardware would like to avoid + * skb_reserve to improve performance. + * @g: controller to check for quirk + */ +static inline int gadget_avoids_skb_reserve(struct usb_gadget *g) +{ + return g->quirk_avoids_skb_reserve; +} + +/** * gadget_is_dualspeed - return true iff the hardware handles high speed * @g: controller that might support both high and full speeds */ diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index 245f57dbbb61..0aae1b2ee931 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h @@ -81,6 +81,8 @@ /* Sets max_sectors to 240 */ \ US_FLAG(NO_REPORT_LUNS, 0x10000000) \ /* Cannot handle REPORT_LUNS */ \ + US_FLAG(ALWAYS_SYNC, 0x20000000) \ + /* lies about caching, so always sync */ \ #define US_FLAG(name, value) US_FL_##name = value , enum { US_DO_ALL_FLAGS }; diff --git a/include/linux/vme.h b/include/linux/vme.h index 71e4a6dec5ac..ea6095deba20 100644 --- a/include/linux/vme.h +++ b/include/linux/vme.h @@ -166,7 +166,7 @@ struct vme_resource *vme_lm_request(struct vme_dev *); int vme_lm_count(struct vme_resource *); int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32); int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *); -int vme_lm_attach(struct vme_resource *, int, void (*callback)(int)); +int vme_lm_attach(struct vme_resource *, int, void (*callback)(void *), void *); int vme_lm_detach(struct vme_resource *, int); void vme_lm_free(struct vme_resource *); diff --git a/include/linux/wait.h b/include/linux/wait.h index c3ff74d764fa..2408e8d5c05c 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -248,6 +248,8 @@ wait_queue_head_t *bit_waitqueue(void *, int); (!__builtin_constant_p(state) || \ state == TASK_INTERRUPTIBLE || state == TASK_KILLABLE) \ +extern void init_wait_entry(wait_queue_t *__wait, int flags); + /* * The below macro ___wait_event() has an explicit shadow of the __ret * variable when used from the wait_event_*() macros. @@ -266,12 +268,7 @@ wait_queue_head_t *bit_waitqueue(void *, int); wait_queue_t __wait; \ long __ret = ret; /* explicit shadow */ \ \ - INIT_LIST_HEAD(&__wait.task_list); \ - if (exclusive) \ - __wait.flags = WQ_FLAG_EXCLUSIVE; \ - else \ - __wait.flags = 0; \ - \ + init_wait_entry(&__wait, exclusive ? WQ_FLAG_EXCLUSIVE : 0); \ for (;;) { \ long __int = prepare_to_wait_event(&wq, &__wait, state);\ \ @@ -280,12 +277,7 @@ wait_queue_head_t *bit_waitqueue(void *, int); \ if (___wait_is_interruptible(state) && __int) { \ __ret = __int; \ - if (exclusive) { \ - abort_exclusive_wait(&wq, &__wait, \ - state, NULL); \ - goto __out; \ - } \ - break; \ + goto __out; \ } \ \ cmd; \ @@ -989,7 +981,6 @@ void prepare_to_wait(wait_queue_head_t *q, wait_queue_t *wait, int state); void prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state); long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state); void finish_wait(wait_queue_head_t *q, wait_queue_t *wait); -void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait, unsigned int mode, void *key); long wait_woken(wait_queue_t *wait, unsigned mode, long timeout); int woken_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key); int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key); |