diff options
Diffstat (limited to 'include/linux')
37 files changed, 755 insertions, 299 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 9f70b7807d53..d661cd0ee64d 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -416,9 +416,30 @@ extern void acpi_osi_setup(char *str); extern bool acpi_osi_is_win8(void); #ifdef CONFIG_ACPI_NUMA -int acpi_map_pxm_to_online_node(int pxm); int acpi_map_pxm_to_node(int pxm); int acpi_get_node(acpi_handle handle); + +/** + * acpi_map_pxm_to_online_node - Map proximity ID to online node + * @pxm: ACPI proximity ID + * + * This is similar to acpi_map_pxm_to_node(), but always returns an online + * node. When the mapped node from a given proximity ID is offline, it + * looks up the node distance table and returns the nearest online node. + * + * ACPI device drivers, which are called after the NUMA initialization has + * completed in the kernel, can call this interface to obtain their device + * NUMA topology from ACPI tables. Such drivers do not have to deal with + * offline nodes. A node may be offline when a device proximity ID is + * unique, SRAT memory entry does not exist, or NUMA is disabled, ex. + * "numa=off" on x86. + */ +static inline int acpi_map_pxm_to_online_node(int pxm) +{ + int node = acpi_map_pxm_to_node(pxm); + + return numa_map_to_online_node(node); +} #else static inline int acpi_map_pxm_to_online_node(int pxm) { diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h index e4a6949fd171..35f8ffe92b70 100644 --- a/include/linux/blk-cgroup.h +++ b/include/linux/blk-cgroup.h @@ -46,6 +46,7 @@ struct blkcg_gq; struct blkcg { struct cgroup_subsys_state css; spinlock_t lock; + refcount_t online_pin; struct radix_tree_root blkg_tree; struct blkcg_gq __rcu *blkg_hint; @@ -56,7 +57,6 @@ struct blkcg { struct list_head all_blkcgs_node; #ifdef CONFIG_CGROUP_WRITEBACK struct list_head cgwb_list; - refcount_t cgwb_refcnt; #endif }; @@ -412,47 +412,38 @@ static inline struct blkcg *cpd_to_blkcg(struct blkcg_policy_data *cpd) extern void blkcg_destroy_blkgs(struct blkcg *blkcg); -#ifdef CONFIG_CGROUP_WRITEBACK - /** - * blkcg_cgwb_get - get a reference for blkcg->cgwb_list + * blkcg_pin_online - pin online state * @blkcg: blkcg of interest * - * This is used to track the number of active wb's related to a blkcg. + * While pinned, a blkcg is kept online. This is primarily used to + * impedance-match blkg and cgwb lifetimes so that blkg doesn't go offline + * while an associated cgwb is still active. */ -static inline void blkcg_cgwb_get(struct blkcg *blkcg) +static inline void blkcg_pin_online(struct blkcg *blkcg) { - refcount_inc(&blkcg->cgwb_refcnt); + refcount_inc(&blkcg->online_pin); } /** - * blkcg_cgwb_put - put a reference for @blkcg->cgwb_list + * blkcg_unpin_online - unpin online state * @blkcg: blkcg of interest * - * This is used to track the number of active wb's related to a blkcg. - * When this count goes to zero, all active wb has finished so the + * This is primarily used to impedance-match blkg and cgwb lifetimes so + * that blkg doesn't go offline while an associated cgwb is still active. + * When this count goes to zero, all active cgwbs have finished so the * blkcg can continue destruction by calling blkcg_destroy_blkgs(). - * This work may occur in cgwb_release_workfn() on the cgwb_release - * workqueue. */ -static inline void blkcg_cgwb_put(struct blkcg *blkcg) +static inline void blkcg_unpin_online(struct blkcg *blkcg) { - if (refcount_dec_and_test(&blkcg->cgwb_refcnt)) + do { + if (!refcount_dec_and_test(&blkcg->online_pin)) + break; blkcg_destroy_blkgs(blkcg); + blkcg = blkcg_parent(blkcg); + } while (blkcg); } -#else - -static inline void blkcg_cgwb_get(struct blkcg *blkcg) { } - -static inline void blkcg_cgwb_put(struct blkcg *blkcg) -{ - /* wb isn't being accounted, so trigger destruction right away */ - blkcg_destroy_blkgs(blkcg); -} - -#endif - /** * blkg_path - format cgroup path of blkg * @blkg: blkg of interest diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h index cb21c5cf12c3..ebf5ba62b772 100644 --- a/include/linux/ceph/ceph_fs.h +++ b/include/linux/ceph/ceph_fs.h @@ -444,8 +444,9 @@ union ceph_mds_request_args { } __attribute__ ((packed)) lookupino; } __attribute__ ((packed)); -#define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */ -#define CEPH_MDS_FLAG_WANT_DENTRY 2 /* want dentry in reply */ +#define CEPH_MDS_FLAG_REPLAY 1 /* this is a replayed op */ +#define CEPH_MDS_FLAG_WANT_DENTRY 2 /* want dentry in reply */ +#define CEPH_MDS_FLAG_ASYNC 4 /* request is asynchronous */ struct ceph_mds_request_head { __le64 oldest_client_tid; @@ -530,6 +531,9 @@ struct ceph_mds_reply_lease { __le32 seq; } __attribute__ ((packed)); +#define CEPH_LEASE_VALID (1 | 2) /* old and new bit values */ +#define CEPH_LEASE_PRIMARY_LINK 4 /* primary linkage */ + struct ceph_mds_reply_dirfrag { __le32 frag; /* fragment */ __le32 auth; /* auth mds, if this is a delegation point */ @@ -564,6 +568,7 @@ struct ceph_filelock { #define CEPH_FILE_MODE_RDWR 3 /* RD | WR */ #define CEPH_FILE_MODE_LAZY 4 /* lazy io */ #define CEPH_FILE_MODE_BITS 4 +#define CEPH_FILE_MODE_MASK ((1 << CEPH_FILE_MODE_BITS) - 1) int ceph_flags_to_mode(int flags); @@ -655,10 +660,19 @@ int ceph_flags_to_mode(int flags); #define CEPH_CAP_ANY (CEPH_CAP_ANY_RD | CEPH_CAP_ANY_EXCL | \ CEPH_CAP_ANY_FILE_WR | CEPH_CAP_FILE_LAZYIO | \ CEPH_CAP_PIN) +#define CEPH_CAP_ALL_FILE (CEPH_CAP_PIN | CEPH_CAP_ANY_SHARED | \ + CEPH_CAP_AUTH_EXCL | CEPH_CAP_XATTR_EXCL | \ + CEPH_CAP_ANY_FILE_RD | CEPH_CAP_ANY_FILE_WR) #define CEPH_CAP_LOCKS (CEPH_LOCK_IFILE | CEPH_LOCK_IAUTH | CEPH_LOCK_ILINK | \ CEPH_LOCK_IXATTR) +/* cap masks async dir operations */ +#define CEPH_CAP_DIR_CREATE CEPH_CAP_FILE_CACHE +#define CEPH_CAP_DIR_UNLINK CEPH_CAP_FILE_RD +#define CEPH_CAP_ANY_DIR_OPS (CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_RD | \ + CEPH_CAP_FILE_WREXTEND | CEPH_CAP_FILE_LAZYIO) + int ceph_caps_for_mode(int mode); enum { diff --git a/include/linux/ceph/debugfs.h b/include/linux/ceph/debugfs.h index cf5e840eec71..8b3a1a7a953a 100644 --- a/include/linux/ceph/debugfs.h +++ b/include/linux/ceph/debugfs.h @@ -2,22 +2,8 @@ #ifndef _FS_CEPH_DEBUGFS_H #define _FS_CEPH_DEBUGFS_H -#include <linux/ceph/ceph_debug.h> #include <linux/ceph/types.h> -#define CEPH_DEFINE_SHOW_FUNC(name) \ -static int name##_open(struct inode *inode, struct file *file) \ -{ \ - return single_open(file, name, inode->i_private); \ -} \ - \ -static const struct file_operations name##_fops = { \ - .open = name##_open, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ -}; - /* debugfs.c */ extern void ceph_debugfs_init(void); extern void ceph_debugfs_cleanup(void); diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index ec73ebc4827d..525b7c3f1c81 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -272,6 +272,7 @@ extern struct kmem_cache *ceph_cap_flush_cachep; extern struct kmem_cache *ceph_dentry_cachep; extern struct kmem_cache *ceph_file_cachep; extern struct kmem_cache *ceph_dir_file_cachep; +extern struct kmem_cache *ceph_mds_request_cachep; /* ceph_common.c */ extern bool libceph_compatible(void *data); diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index 5a62dbd3f4c2..9d9f745b98a1 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -509,23 +509,6 @@ int ceph_osdc_call(struct ceph_osd_client *osdc, struct page *req_page, size_t req_len, struct page **resp_pages, size_t *resp_len); -extern int ceph_osdc_readpages(struct ceph_osd_client *osdc, - struct ceph_vino vino, - struct ceph_file_layout *layout, - u64 off, u64 *plen, - u32 truncate_seq, u64 truncate_size, - struct page **pages, int nr_pages, - int page_align); - -extern int ceph_osdc_writepages(struct ceph_osd_client *osdc, - struct ceph_vino vino, - struct ceph_file_layout *layout, - struct ceph_snap_context *sc, - u64 off, u64 len, - u32 truncate_seq, u64 truncate_size, - struct timespec64 *mtime, - struct page **pages, int nr_pages); - int ceph_osdc_copy_from(struct ceph_osd_client *osdc, u64 src_snapid, u64 src_version, struct ceph_object_id *src_oid, diff --git a/include/linux/cma.h b/include/linux/cma.h index 190184b5ff32..6ff79fefd01f 100644 --- a/include/linux/cma.h +++ b/include/linux/cma.h @@ -4,6 +4,7 @@ #include <linux/init.h> #include <linux/types.h> +#include <linux/numa.h> /* * There is always at least global CMA area and a few optional @@ -24,10 +25,19 @@ extern phys_addr_t cma_get_base(const struct cma *cma); extern unsigned long cma_get_size(const struct cma *cma); extern const char *cma_get_name(const struct cma *cma); -extern int __init cma_declare_contiguous(phys_addr_t base, +extern int __init cma_declare_contiguous_nid(phys_addr_t base, phys_addr_t size, phys_addr_t limit, phys_addr_t alignment, unsigned int order_per_bit, - bool fixed, const char *name, struct cma **res_cma); + bool fixed, const char *name, struct cma **res_cma, + int nid); +static inline int __init cma_declare_contiguous(phys_addr_t base, + phys_addr_t size, phys_addr_t limit, + phys_addr_t alignment, unsigned int order_per_bit, + bool fixed, const char *name, struct cma **res_cma) +{ + return cma_declare_contiguous_nid(base, size, limit, alignment, + order_per_bit, fixed, name, res_cma, NUMA_NO_NODE); +} extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size, unsigned int order_per_bit, const char *name, diff --git a/include/linux/dax.h b/include/linux/dax.h index 328c2dbb4409..d7af5d243f24 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -13,6 +13,7 @@ typedef unsigned long dax_entry_t; struct iomap_ops; +struct iomap; struct dax_device; struct dax_operations { /* @@ -34,6 +35,8 @@ struct dax_operations { /* copy_to_iter: required operation for fs-dax direct-i/o */ size_t (*copy_to_iter)(struct dax_device *, pgoff_t, void *, size_t, struct iov_iter *); + /* zero_page_range: required operation. Zero page range */ + int (*zero_page_range)(struct dax_device *, pgoff_t, size_t); }; extern struct attribute_group dax_attribute_group; @@ -199,6 +202,8 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); size_t dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); +int dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff, + size_t nr_pages); void dax_flush(struct dax_device *dax_dev, void *addr, size_t size); ssize_t dax_iomap_rw(struct kiocb *iocb, struct iov_iter *iter, @@ -210,20 +215,8 @@ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf, int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index); int dax_invalidate_mapping_entry_sync(struct address_space *mapping, pgoff_t index); - -#ifdef CONFIG_FS_DAX -int __dax_zero_page_range(struct block_device *bdev, - struct dax_device *dax_dev, sector_t sector, - unsigned int offset, unsigned int length); -#else -static inline int __dax_zero_page_range(struct block_device *bdev, - struct dax_device *dax_dev, sector_t sector, - unsigned int offset, unsigned int length) -{ - return -ENXIO; -} -#endif - +int dax_iomap_zero(loff_t pos, unsigned offset, unsigned size, + struct iomap *iomap); static inline bool dax_mapping(struct address_space *mapping) { return mapping->host && IS_DAX(mapping->host); diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 475668c69dbc..af48d9da3916 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -141,6 +141,8 @@ typedef long (*dm_dax_direct_access_fn) (struct dm_target *ti, pgoff_t pgoff, long nr_pages, void **kaddr, pfn_t *pfn); typedef size_t (*dm_dax_copy_iter_fn)(struct dm_target *ti, pgoff_t pgoff, void *addr, size_t bytes, struct iov_iter *i); +typedef int (*dm_dax_zero_page_range_fn)(struct dm_target *ti, pgoff_t pgoff, + size_t nr_pages); #define PAGE_SECTORS (PAGE_SIZE / 512) void dm_error(const char *message); @@ -195,6 +197,7 @@ struct target_type { dm_dax_direct_access_fn direct_access; dm_dax_copy_iter_fn dax_copy_from_iter; dm_dax_copy_iter_fn dax_copy_to_iter; + dm_dax_zero_page_range_fn dax_zero_page_range; /* For internal device-mapper use. */ struct list_head list; diff --git a/include/linux/device.h b/include/linux/device.h index 1311f276f533..ac8e37cd716a 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -42,9 +42,8 @@ struct device_node; struct fwnode_handle; struct iommu_ops; struct iommu_group; -struct iommu_fwspec; struct dev_pin_info; -struct iommu_param; +struct dev_iommu; /** * struct subsys_interface - interfaces to device functions @@ -513,8 +512,7 @@ struct dev_links_info { * gone away. This should be set by the allocator of the * device (i.e. the bus driver that discovered the device). * @iommu_group: IOMMU group the device belongs to. - * @iommu_fwspec: IOMMU-specific properties supplied by firmware. - * @iommu_param: Per device generic IOMMU runtime data + * @iommu: Per device generic IOMMU runtime data * * @offline_disabled: If set, the device is permanently online. * @offline: Set after successful invocation of bus type's .offline(). @@ -613,8 +611,7 @@ struct device { void (*release)(struct device *dev); struct iommu_group *iommu_group; - struct iommu_fwspec *iommu_fwspec; - struct iommu_param *iommu_param; + struct dev_iommu *iommu; bool offline_disabled:1; bool offline:1; diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 5ea05879a0a9..43a1cef8f0f1 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -895,4 +895,16 @@ static inline spinlock_t *huge_pte_lock(struct hstate *h, return ptl; } +#if defined(CONFIG_HUGETLB_PAGE) && defined(CONFIG_CMA) +extern void __init hugetlb_cma_reserve(int order); +extern void __init hugetlb_cma_check(void); +#else +static inline __init void hugetlb_cma_reserve(int order) +{ +} +static inline __init void hugetlb_cma_check(void) +{ +} +#endif + #endif /* _LINUX_HUGETLB_H */ diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h index bb331e6356a9..7bc961defa87 100644 --- a/include/linux/iio/common/cros_ec_sensors_core.h +++ b/include/linux/iio/common/cros_ec_sensors_core.h @@ -12,6 +12,7 @@ #include <linux/irqreturn.h> #include <linux/platform_data/cros_ec_commands.h> #include <linux/platform_data/cros_ec_proto.h> +#include <linux/platform_data/cros_ec_sensorhub.h> enum { CROS_EC_SENSOR_X, @@ -29,8 +30,7 @@ enum { */ #define CROS_EC_SAMPLE_SIZE (sizeof(s64) * 2) -/* Minimum sampling period to use when device is suspending */ -#define CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY 1000 /* 1 second */ +typedef irqreturn_t (*cros_ec_sensors_capture_t)(int irq, void *p); /** * struct cros_ec_sensors_core_state - state data for EC sensors IIO driver @@ -50,7 +50,9 @@ enum { * the timestamp. The timestamp is always last and * is always 8-byte aligned. * @read_ec_sensors_data: function used for accessing sensors values - * @cuur_sampl_freq: current sampling period + * @fifo_max_event_count: Size of the EC sensor FIFO + * @frequencies: Table of known available frequencies: + * 0, Min and Max in mHz */ struct cros_ec_sensors_core_state { struct cros_ec_device *ec; @@ -73,101 +75,34 @@ struct cros_ec_sensors_core_state { int (*read_ec_sensors_data)(struct iio_dev *indio_dev, unsigned long scan_mask, s16 *data); - int curr_sampl_freq; - - /* Table of known available frequencies : 0, Min and Max in mHz */ - int frequencies[3]; + u32 fifo_max_event_count; + int frequencies[6]; }; -/** - * cros_ec_sensors_read_lpc() - retrieve data from EC shared memory - * @indio_dev: pointer to IIO device - * @scan_mask: bitmap of the sensor indices to scan - * @data: location to store data - * - * This is the safe function for reading the EC data. It guarantees that the - * data sampled was not modified by the EC while being read. - * - * Return: 0 on success, -errno on failure. - */ int cros_ec_sensors_read_lpc(struct iio_dev *indio_dev, unsigned long scan_mask, s16 *data); -/** - * cros_ec_sensors_read_cmd() - retrieve data using the EC command protocol - * @indio_dev: pointer to IIO device - * @scan_mask: bitmap of the sensor indices to scan - * @data: location to store data - * - * Return: 0 on success, -errno on failure. - */ int cros_ec_sensors_read_cmd(struct iio_dev *indio_dev, unsigned long scan_mask, s16 *data); struct platform_device; -/** - * cros_ec_sensors_core_init() - basic initialization of the core structure - * @pdev: platform device created for the sensors - * @indio_dev: iio device structure of the device - * @physical_device: true if the device refers to a physical device - * - * Return: 0 on success, -errno on failure. - */ int cros_ec_sensors_core_init(struct platform_device *pdev, - struct iio_dev *indio_dev, bool physical_device); + struct iio_dev *indio_dev, bool physical_device, + cros_ec_sensors_capture_t trigger_capture, + cros_ec_sensorhub_push_data_cb_t push_data); -/** - * cros_ec_sensors_capture() - the trigger handler function - * @irq: the interrupt number. - * @p: a pointer to the poll function. - * - * On a trigger event occurring, if the pollfunc is attached then this - * handler is called as a threaded interrupt (and hence may sleep). It - * is responsible for grabbing data from the device and pushing it into - * the associated buffer. - * - * Return: IRQ_HANDLED - */ irqreturn_t cros_ec_sensors_capture(int irq, void *p); +int cros_ec_sensors_push_data(struct iio_dev *indio_dev, + s16 *data, + s64 timestamp); -/** - * cros_ec_motion_send_host_cmd() - send motion sense host command - * @st: pointer to state information for device - * @opt_length: optional length to reduce the response size, useful on the data - * path. Otherwise, the maximal allowed response size is used - * - * When called, the sub-command is assumed to be set in param->cmd. - * - * Return: 0 on success, -errno on failure. - */ int cros_ec_motion_send_host_cmd(struct cros_ec_sensors_core_state *st, u16 opt_length); -/** - * cros_ec_sensors_core_read() - function to request a value from the sensor - * @st: pointer to state information for device - * @chan: channel specification structure table - * @val: will contain one element making up the returned value - * @val2: will contain another element making up the returned value - * @mask: specifies which values to be requested - * - * Return: the type of value returned by the device - */ int cros_ec_sensors_core_read(struct cros_ec_sensors_core_state *st, struct iio_chan_spec const *chan, int *val, int *val2, long mask); -/** - * cros_ec_sensors_core_read_avail() - get available values - * @indio_dev: pointer to state information for device - * @chan: channel specification structure table - * @vals: list of available values - * @type: type of data returned - * @length: number of data returned in the array - * @mask: specifies which values to be requested - * - * Return: an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST - */ int cros_ec_sensors_core_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, const int **vals, @@ -175,23 +110,12 @@ int cros_ec_sensors_core_read_avail(struct iio_dev *indio_dev, int *length, long mask); -/** - * cros_ec_sensors_core_write() - function to write a value to the sensor - * @st: pointer to state information for device - * @chan: channel specification structure table - * @val: first part of value to write - * @val2: second part of value to write - * @mask: specifies which values to write - * - * Return: the type of value returned by the device - */ int cros_ec_sensors_core_write(struct cros_ec_sensors_core_state *st, struct iio_chan_spec const *chan, int val, int val2, long mask); -extern const struct dev_pm_ops cros_ec_sensors_pm_ops; - /* List of extended channel specification for all sensors */ extern const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[]; +extern const struct attribute *cros_ec_sensor_fifo_attributes[]; #endif /* __CROS_EC_SENSORS_CORE_H */ diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index eed58ed2f368..17f56a070b20 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -629,6 +629,8 @@ static inline clockid_t iio_device_get_clock(const struct iio_dev *indio_dev) return indio_dev->clock_id; } +int iio_device_set_clock(struct iio_dev *indio_dev, clockid_t clock_id); + /** * dev_to_iio_dev() - Get IIO device struct from a device struct * @dev: The device embedded in the IIO device diff --git a/include/linux/io.h b/include/linux/io.h index b1c44bb4b2d7..8394c56babc2 100644 --- a/include/linux/io.h +++ b/include/linux/io.h @@ -77,8 +77,6 @@ void *devm_memremap(struct device *dev, resource_size_t offset, size_t size, unsigned long flags); void devm_memunmap(struct device *dev, void *addr); -void *__devm_memremap_pages(struct device *dev, struct resource *res); - #ifdef CONFIG_PCI /* * The PCI specifications (Rev 3.0, 3.2.5 "Transaction Ordering and diff --git a/include/linux/iommu.h b/include/linux/iommu.h index d1b5f4d98569..7ef8b0bda695 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -365,17 +365,20 @@ struct iommu_fault_param { }; /** - * struct iommu_param - collection of per-device IOMMU data + * struct dev_iommu - Collection of per-device IOMMU data * * @fault_param: IOMMU detected device fault reporting data + * @fwspec: IOMMU fwspec data + * @priv: IOMMU Driver private data * * TODO: migrate other per device data pointers under iommu_dev_data, e.g. * struct iommu_group *iommu_group; - * struct iommu_fwspec *iommu_fwspec; */ -struct iommu_param { +struct dev_iommu { struct mutex lock; - struct iommu_fault_param *fault_param; + struct iommu_fault_param *fault_param; + struct iommu_fwspec *fwspec; + void *priv; }; int iommu_device_register(struct iommu_device *iommu); @@ -588,11 +591,10 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); struct iommu_fwspec { const struct iommu_ops *ops; struct fwnode_handle *iommu_fwnode; - void *iommu_priv; u32 flags; u32 num_pasid_bits; unsigned int num_ids; - u32 ids[1]; + u32 ids[]; }; /* ATS is supported */ @@ -614,13 +616,26 @@ const struct iommu_ops *iommu_ops_from_fwnode(struct fwnode_handle *fwnode); static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev) { - return dev->iommu_fwspec; + if (dev->iommu) + return dev->iommu->fwspec; + else + return NULL; } static inline void dev_iommu_fwspec_set(struct device *dev, struct iommu_fwspec *fwspec) { - dev->iommu_fwspec = fwspec; + dev->iommu->fwspec = fwspec; +} + +static inline void *dev_iommu_priv_get(struct device *dev) +{ + return dev->iommu->priv; +} + +static inline void dev_iommu_priv_set(struct device *dev, void *priv) +{ + dev->iommu->priv = priv; } int iommu_probe_device(struct device *dev); @@ -1073,6 +1088,10 @@ static inline int iommu_sva_unbind_gpasid(struct iommu_domain *domain, return -ENODEV; } +static inline struct iommu_fwspec *dev_iommu_fwspec_get(struct device *dev) +{ + return NULL; +} #endif /* CONFIG_IOMMU_API */ #ifdef CONFIG_IOMMU_DEBUGFS diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h index 9df091bd30ba..18da4059be09 100644 --- a/include/linux/libnvdimm.h +++ b/include/linux/libnvdimm.h @@ -37,6 +37,8 @@ enum { NDD_WORK_PENDING = 4, /* ignore / filter NSLABEL_FLAG_LOCAL for this DIMM, i.e. no aliasing */ NDD_NOBLK = 5, + /* dimm supports namespace labels */ + NDD_LABELING = 6, /* need to set a limit somewhere, but yes, this is likely overkill */ ND_IOCTL_MAX_BUFLEN = SZ_4M, diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 079d17d96410..6bc37a731d27 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -348,6 +348,9 @@ static inline int memblock_get_region_node(const struct memblock_region *r) phys_addr_t memblock_phys_alloc_range(phys_addr_t size, phys_addr_t align, phys_addr_t start, phys_addr_t end); +phys_addr_t memblock_alloc_range_nid(phys_addr_t size, + phys_addr_t align, phys_addr_t start, + phys_addr_t end, int nid, bool exact_nid); phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid); static inline phys_addr_t memblock_phys_alloc(phys_addr_t size, diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index ef55115320fb..93d9ada74ddd 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@ -58,13 +58,14 @@ enum { }; /* - * Restrictions for the memory hotplug: - * flags: MHP_ flags - * altmap: alternative allocator for memmap array + * Extended parameters for memory hotplug: + * altmap: alternative allocator for memmap array (optional) + * pgprot: page protection flags to apply to newly created page tables + * (required) */ -struct mhp_restrictions { - unsigned long flags; +struct mhp_params { struct vmem_altmap *altmap; + pgprot_t pgprot; }; /* @@ -114,7 +115,7 @@ extern int restore_online_page_callback(online_page_callback_t callback); extern int try_online_node(int nid); extern int arch_add_memory(int nid, u64 start, u64 size, - struct mhp_restrictions *restrictions); + struct mhp_params *params); extern u64 max_mem_size; extern int memhp_online_type_from_str(const char *str); @@ -135,17 +136,17 @@ extern void __remove_pages(unsigned long start_pfn, unsigned long nr_pages, /* reasonably generic interface to expand the physical pages */ extern int __add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, - struct mhp_restrictions *restrictions); + struct mhp_params *params); #ifndef CONFIG_ARCH_HAS_ADD_PAGES static inline int add_pages(int nid, unsigned long start_pfn, - unsigned long nr_pages, struct mhp_restrictions *restrictions) + unsigned long nr_pages, struct mhp_params *params) { - return __add_pages(nid, start_pfn, nr_pages, restrictions); + return __add_pages(nid, start_pfn, nr_pages, params); } #else /* ARCH_HAS_ADD_PAGES */ int add_pages(int nid, unsigned long start_pfn, unsigned long nr_pages, - struct mhp_restrictions *restrictions); + struct mhp_params *params); #endif /* ARCH_HAS_ADD_PAGES */ #ifdef CONFIG_NUMA diff --git a/include/linux/memremap.h b/include/linux/memremap.h index 8b37c4c9222c..5f5b2df06e61 100644 --- a/include/linux/memremap.h +++ b/include/linux/memremap.h @@ -134,6 +134,7 @@ struct dev_pagemap *get_dev_pagemap(unsigned long pfn, unsigned long vmem_altmap_offset(struct vmem_altmap *altmap); void vmem_altmap_free(struct vmem_altmap *altmap, unsigned long nr_pfns); +unsigned long memremap_compat_align(void); #else static inline void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap) @@ -167,6 +168,12 @@ static inline void vmem_altmap_free(struct vmem_altmap *altmap, unsigned long nr_pfns) { } + +/* when memremap_pages() is disabled all archs can remap a single page */ +static inline unsigned long memremap_compat_align(void) +{ + return PAGE_SIZE; +} #endif /* CONFIG_ZONE_DEVICE */ static inline void put_dev_pagemap(struct dev_pagemap *pgmap) @@ -174,4 +181,5 @@ static inline void put_dev_pagemap(struct dev_pagemap *pgmap) if (pgmap) percpu_ref_put(pgmap->ref); } + #endif /* _LINUX_MEMREMAP_H_ */ diff --git a/include/linux/mfd/wm831x/pdata.h b/include/linux/mfd/wm831x/pdata.h index 986986fe4e4e..75aa94dadf1c 100644 --- a/include/linux/mfd/wm831x/pdata.h +++ b/include/linux/mfd/wm831x/pdata.h @@ -89,7 +89,6 @@ enum wm831x_watchdog_action { struct wm831x_watchdog_pdata { enum wm831x_watchdog_action primary, secondary; - int update_gpio; unsigned int software:1; }; diff --git a/include/linux/mm.h b/include/linux/mm.h index e2f938c5a9d8..5a323422d783 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -343,6 +343,20 @@ extern unsigned int kobjsize(const void *objp); /* Bits set in the VMA until the stack is in its final location */ #define VM_STACK_INCOMPLETE_SETUP (VM_RAND_READ | VM_SEQ_READ) +#define TASK_EXEC ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) + +/* Common data flag combinations */ +#define VM_DATA_FLAGS_TSK_EXEC (VM_READ | VM_WRITE | TASK_EXEC | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#define VM_DATA_FLAGS_NON_EXEC (VM_READ | VM_WRITE | VM_MAYREAD | \ + VM_MAYWRITE | VM_MAYEXEC) +#define VM_DATA_FLAGS_EXEC (VM_READ | VM_WRITE | VM_EXEC | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + +#ifndef VM_DATA_DEFAULT_FLAGS /* arch can override this */ +#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_EXEC +#endif + #ifndef VM_STACK_DEFAULT_FLAGS /* arch can override this */ #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS #endif @@ -355,6 +369,10 @@ extern unsigned int kobjsize(const void *objp); #define VM_STACK_FLAGS (VM_STACK | VM_STACK_DEFAULT_FLAGS | VM_ACCOUNT) +/* VMA basic access permission flags */ +#define VM_ACCESS_FLAGS (VM_READ | VM_WRITE | VM_EXEC) + + /* * Special vmas that are non-mergable, non-mlock()able. */ @@ -632,7 +650,7 @@ static inline bool vma_is_foreign(struct vm_area_struct *vma) static inline bool vma_is_accessible(struct vm_area_struct *vma) { - return vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC); + return vma->vm_flags & VM_ACCESS_FLAGS; } #ifdef CONFIG_SHMEM @@ -1909,6 +1927,18 @@ static inline void sync_mm_rss(struct mm_struct *mm) } #endif +#ifndef CONFIG_ARCH_HAS_PTE_SPECIAL +static inline int pte_special(pte_t pte) +{ + return 0; +} + +static inline pte_t pte_mkspecial(pte_t pte) +{ + return pte; +} +#endif + #ifndef CONFIG_ARCH_HAS_PTE_DEVMAP static inline int pte_devmap(pte_t pte) { @@ -2689,6 +2719,8 @@ struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr); int remap_pfn_range(struct vm_area_struct *, unsigned long addr, unsigned long pfn, unsigned long size, pgprot_t); int vm_insert_page(struct vm_area_struct *, unsigned long addr, struct page *); +int vm_insert_pages(struct vm_area_struct *vma, unsigned long addr, + struct page **pages, unsigned long *num); int vm_map_pages(struct vm_area_struct *vma, struct page **pages, unsigned long num); int vm_map_pages_zero(struct vm_area_struct *vma, struct page **pages, diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index e9892bf9eba9..1b9de7d220fb 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -1127,6 +1127,7 @@ static inline unsigned long section_nr_to_pfn(unsigned long sec) #define SECTION_ALIGN_DOWN(pfn) ((pfn) & PAGE_SECTION_MASK) #define SUBSECTION_SHIFT 21 +#define SUBSECTION_SIZE (1UL << SUBSECTION_SHIFT) #define PFN_SUBSECTION_SHIFT (SUBSECTION_SHIFT - PAGE_SHIFT) #define PAGES_PER_SUBSECTION (1UL << PFN_SUBSECTION_SHIFT) diff --git a/include/linux/numa.h b/include/linux/numa.h index 110b0e5d0fb0..a42df804679e 100644 --- a/include/linux/numa.h +++ b/include/linux/numa.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_NUMA_H #define _LINUX_NUMA_H - +#include <linux/types.h> #ifdef CONFIG_NODES_SHIFT #define NODES_SHIFT CONFIG_NODES_SHIFT @@ -13,4 +13,32 @@ #define NUMA_NO_NODE (-1) +/* optionally keep NUMA memory info available post init */ +#ifdef CONFIG_NUMA_KEEP_MEMINFO +#define __initdata_or_meminfo +#else +#define __initdata_or_meminfo __initdata +#endif + +#ifdef CONFIG_NUMA +/* Generic implementation available */ +int numa_map_to_online_node(int node); + +/* + * Optional architecture specific implementation, users need a "depends + * on $ARCH" + */ +int phys_to_target_node(phys_addr_t addr); +#else +static inline int numa_map_to_online_node(int node) +{ + return NUMA_NO_NODE; +} + +static inline int phys_to_target_node(phys_addr_t addr) +{ + return NUMA_NO_NODE; +} +#endif + #endif /* _LINUX_NUMA_H */ diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h index 6d0d70f3219c..10f81629b9ce 100644 --- a/include/linux/nvme-fc-driver.h +++ b/include/linux/nvme-fc-driver.h @@ -270,8 +270,6 @@ struct nvme_fc_remote_port { * * Host/Initiator Transport Entrypoints/Parameters: * - * @module: The LLDD module using the interface - * * @localport_delete: The LLDD initiates deletion of a localport via * nvme_fc_deregister_localport(). However, the teardown is * asynchronous. This routine is called upon the completion of the @@ -385,8 +383,6 @@ struct nvme_fc_remote_port { * Value is Mandatory. Allowed to be zero. */ struct nvme_fc_port_template { - struct module *module; - /* initiator-based functions */ void (*localport_delete)(struct nvme_fc_local_port *); void (*remoteport_delete)(struct nvme_fc_remote_port *); diff --git a/include/linux/pid.h b/include/linux/pid.h index 01a0d4e28506..cc896f0fc4e3 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -60,6 +60,7 @@ struct pid { refcount_t count; unsigned int level; + spinlock_t lock; /* lists of tasks that use this pid */ struct hlist_head tasks[PIDTYPE_MAX]; struct hlist_head inodes; diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h index ba5914770191..383243326676 100644 --- a/include/linux/platform_data/cros_ec_proto.h +++ b/include/linux/platform_data/cros_ec_proto.h @@ -125,6 +125,9 @@ struct cros_ec_command { * @host_event_wake_mask: Mask of host events that cause wake from suspend. * @last_event_time: exact time from the hard irq when we got notified of * a new event. + * @notifier_ready: The notifier_block to let the kernel re-query EC + * communication protocol when the EC sends + * EC_HOST_EVENT_INTERFACE_READY. * @ec: The platform_device used by the mfd driver to interface with the * main EC. * @pd: The platform_device used by the mfd driver to interface with the @@ -166,6 +169,7 @@ struct cros_ec_device { u32 host_event_wake_mask; u32 last_resume_result; ktime_t last_event_time; + struct notifier_block notifier_ready; /* The platform devices used by the mfd driver */ struct platform_device *ec; diff --git a/include/linux/platform_data/cros_ec_sensorhub.h b/include/linux/platform_data/cros_ec_sensorhub.h index bef7ffc7fce1..c588be843f61 100644 --- a/include/linux/platform_data/cros_ec_sensorhub.h +++ b/include/linux/platform_data/cros_ec_sensorhub.h @@ -8,8 +8,13 @@ #ifndef __LINUX_PLATFORM_DATA_CROS_EC_SENSORHUB_H #define __LINUX_PLATFORM_DATA_CROS_EC_SENSORHUB_H +#include <linux/ktime.h> +#include <linux/mutex.h> +#include <linux/notifier.h> #include <linux/platform_data/cros_ec_commands.h> +struct iio_dev; + /** * struct cros_ec_sensor_platform - ChromeOS EC sensor platform information. * @sensor_num: Id of the sensor, as reported by the EC. @@ -19,12 +24,170 @@ struct cros_ec_sensor_platform { }; /** + * typedef cros_ec_sensorhub_push_data_cb_t - Callback function to send datum + * to specific sensors. + * + * @indio_dev: The IIO device that will process the sample. + * @data: Vector array of the ring sample. + * @timestamp: Timestamp in host timespace when the sample was acquired by + * the EC. + */ +typedef int (*cros_ec_sensorhub_push_data_cb_t)(struct iio_dev *indio_dev, + s16 *data, + s64 timestamp); + +struct cros_ec_sensorhub_sensor_push_data { + struct iio_dev *indio_dev; + cros_ec_sensorhub_push_data_cb_t push_data_cb; +}; + +enum { + CROS_EC_SENSOR_LAST_TS, + CROS_EC_SENSOR_NEW_TS, + CROS_EC_SENSOR_ALL_TS +}; + +struct cros_ec_sensors_ring_sample { + u8 sensor_id; + u8 flag; + s16 vector[3]; + s64 timestamp; +} __packed; + +/* State used for cros_ec_ring_fix_overflow */ +struct cros_ec_sensors_ec_overflow_state { + s64 offset; + s64 last; +}; + +/* Length of the filter, how long to remember entries for */ +#define CROS_EC_SENSORHUB_TS_HISTORY_SIZE 64 + +/** + * struct cros_ec_sensors_ts_filter_state - Timestamp filetr state. + * + * @x_offset: x is EC interrupt time. x_offset its last value. + * @y_offset: y is the difference between AP and EC time, y_offset its last + * value. + * @x_history: The past history of x, relative to x_offset. + * @y_history: The past history of y, relative to y_offset. + * @m_history: rate between y and x. + * @history_len: Amount of valid historic data in the arrays. + * @temp_buf: Temporary buffer used when updating the filter. + * @median_m: median value of m_history + * @median_error: final error to apply to AP interrupt timestamp to get the + * "true timestamp" the event occurred. + */ +struct cros_ec_sensors_ts_filter_state { + s64 x_offset, y_offset; + s64 x_history[CROS_EC_SENSORHUB_TS_HISTORY_SIZE]; + s64 y_history[CROS_EC_SENSORHUB_TS_HISTORY_SIZE]; + s64 m_history[CROS_EC_SENSORHUB_TS_HISTORY_SIZE]; + int history_len; + + s64 temp_buf[CROS_EC_SENSORHUB_TS_HISTORY_SIZE]; + + s64 median_m; + s64 median_error; +}; + +/* struct cros_ec_sensors_ts_batch_state - State of batch of a single sensor. + * + * Use to store information to batch data using median fileter information. + * + * @penul_ts: last but one batch timestamp (penultimate timestamp). + * Used for timestamp spreading calculations + * when a batch shows up. + * @penul_len: last but one batch length. + * @last_ts: Last batch timestam. + * @last_len: Last batch length. + * @newest_sensor_event: Last sensor timestamp. + */ +struct cros_ec_sensors_ts_batch_state { + s64 penul_ts; + int penul_len; + s64 last_ts; + int last_len; + s64 newest_sensor_event; +}; + +/* * struct cros_ec_sensorhub - Sensor Hub device data. * + * @dev: Device object, mostly used for logging. * @ec: Embedded Controller where the hub is located. + * @sensor_num: Number of MEMS sensors present in the EC. + * @msg: Structure to send FIFO requests. + * @params: Pointer to parameters in msg. + * @resp: Pointer to responses in msg. + * @cmd_lock : Lock for sending msg. + * @notifier: Notifier to kick the FIFO interrupt. + * @ring: Preprocessed ring to store events. + * @fifo_timestamp: Array for event timestamp and spreading. + * @fifo_info: Copy of FIFO information coming from the EC. + * @fifo_size: Size of the ring. + * @batch_state: Per sensor information of the last batches received. + * @overflow_a: For handling timestamp overflow for a time (sensor events) + * @overflow_b: For handling timestamp overflow for b time (ec interrupts) + * @filter: Medium fileter structure. + * @tight_timestamps: Set to truen when EC support tight timestamping: + * The timestamps reported from the EC have low jitter. + * Timestamps also come before every sample. Set either + * by feature bits coming from the EC or userspace. + * @future_timestamp_count: Statistics used to compute shaved time. + * This occurs when timestamp interpolation from EC + * time to AP time accidentally puts timestamps in + * the future. These timestamps are clamped to + * `now` and these count/total_ns maintain the + * statistics for how much time was removed in a + * given period. + * @future_timestamp_total_ns: Total amount of time shaved. + * @push_data: Array of callback to send datums to iio sensor object. */ struct cros_ec_sensorhub { + struct device *dev; struct cros_ec_dev *ec; + int sensor_num; + + struct cros_ec_command *msg; + struct ec_params_motion_sense *params; + struct ec_response_motion_sense *resp; + struct mutex cmd_lock; /* Lock for protecting msg structure. */ + + struct notifier_block notifier; + + struct cros_ec_sensors_ring_sample *ring; + + ktime_t fifo_timestamp[CROS_EC_SENSOR_ALL_TS]; + struct ec_response_motion_sense_fifo_info *fifo_info; + int fifo_size; + + struct cros_ec_sensors_ts_batch_state *batch_state; + + struct cros_ec_sensors_ec_overflow_state overflow_a; + struct cros_ec_sensors_ec_overflow_state overflow_b; + + struct cros_ec_sensors_ts_filter_state filter; + + int tight_timestamps; + + s32 future_timestamp_count; + s64 future_timestamp_total_ns; + + struct cros_ec_sensorhub_sensor_push_data *push_data; }; +int cros_ec_sensorhub_register_push_data(struct cros_ec_sensorhub *sensorhub, + u8 sensor_num, + struct iio_dev *indio_dev, + cros_ec_sensorhub_push_data_cb_t cb); + +void cros_ec_sensorhub_unregister_push_data(struct cros_ec_sensorhub *sensorhub, + u8 sensor_num); + +int cros_ec_sensorhub_ring_add(struct cros_ec_sensorhub *sensorhub); +void cros_ec_sensorhub_ring_remove(void *arg); +int cros_ec_sensorhub_ring_fifo_enable(struct cros_ec_sensorhub *sensorhub, + bool on); + #endif /* __LINUX_PLATFORM_DATA_CROS_EC_SENSORHUB_H */ diff --git a/include/linux/platform_data/cros_usbpd_notify.h b/include/linux/platform_data/cros_usbpd_notify.h new file mode 100644 index 000000000000..4f2791722b6d --- /dev/null +++ b/include/linux/platform_data/cros_usbpd_notify.h @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ChromeOS EC Power Delivery Notifier Driver + * + * Copyright 2020 Google LLC + */ + +#ifndef __LINUX_PLATFORM_DATA_CROS_USBPD_NOTIFY_H +#define __LINUX_PLATFORM_DATA_CROS_USBPD_NOTIFY_H + +#include <linux/notifier.h> + +int cros_usbpd_register_notify(struct notifier_block *nb); + +void cros_usbpd_unregister_notify(struct notifier_block *nb); + +#endif /* __LINUX_PLATFORM_DATA_CROS_USBPD_NOTIFY_H */ diff --git a/include/linux/platform_data/pwm_omap_dmtimer.h b/include/linux/platform_data/pwm_omap_dmtimer.h deleted file mode 100644 index e7d521e48855..000000000000 --- a/include/linux/platform_data/pwm_omap_dmtimer.h +++ /dev/null @@ -1,90 +0,0 @@ -/* - * include/linux/platform_data/pwm_omap_dmtimer.h - * - * OMAP Dual-Mode Timer PWM platform data - * - * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ - * Tarun Kanti DebBarma <tarun.kanti@ti.com> - * Thara Gopinath <thara@ti.com> - * - * Platform device conversion and hwmod support. - * - * Copyright (C) 2005 Nokia Corporation - * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com> - * PWM and clock framework support by Timo Teras. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#ifndef __PWM_OMAP_DMTIMER_PDATA_H -#define __PWM_OMAP_DMTIMER_PDATA_H - -/* clock sources */ -#define PWM_OMAP_DMTIMER_SRC_SYS_CLK 0x00 -#define PWM_OMAP_DMTIMER_SRC_32_KHZ 0x01 -#define PWM_OMAP_DMTIMER_SRC_EXT_CLK 0x02 - -/* timer interrupt enable bits */ -#define PWM_OMAP_DMTIMER_INT_CAPTURE (1 << 2) -#define PWM_OMAP_DMTIMER_INT_OVERFLOW (1 << 1) -#define PWM_OMAP_DMTIMER_INT_MATCH (1 << 0) - -/* trigger types */ -#define PWM_OMAP_DMTIMER_TRIGGER_NONE 0x00 -#define PWM_OMAP_DMTIMER_TRIGGER_OVERFLOW 0x01 -#define PWM_OMAP_DMTIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02 - -struct omap_dm_timer; -typedef struct omap_dm_timer pwm_omap_dmtimer; - -struct pwm_omap_dmtimer_pdata { - pwm_omap_dmtimer *(*request_by_node)(struct device_node *np); - pwm_omap_dmtimer *(*request_specific)(int timer_id); - pwm_omap_dmtimer *(*request)(void); - - int (*free)(pwm_omap_dmtimer *timer); - - void (*enable)(pwm_omap_dmtimer *timer); - void (*disable)(pwm_omap_dmtimer *timer); - - int (*get_irq)(pwm_omap_dmtimer *timer); - int (*set_int_enable)(pwm_omap_dmtimer *timer, unsigned int value); - int (*set_int_disable)(pwm_omap_dmtimer *timer, u32 mask); - - struct clk *(*get_fclk)(pwm_omap_dmtimer *timer); - - int (*start)(pwm_omap_dmtimer *timer); - int (*stop)(pwm_omap_dmtimer *timer); - int (*set_source)(pwm_omap_dmtimer *timer, int source); - - int (*set_load)(pwm_omap_dmtimer *timer, int autoreload, - unsigned int value); - int (*set_match)(pwm_omap_dmtimer *timer, int enable, - unsigned int match); - int (*set_pwm)(pwm_omap_dmtimer *timer, int def_on, - int toggle, int trigger); - int (*set_prescaler)(pwm_omap_dmtimer *timer, int prescaler); - - unsigned int (*read_counter)(pwm_omap_dmtimer *timer); - int (*write_counter)(pwm_omap_dmtimer *timer, unsigned int value); - unsigned int (*read_status)(pwm_omap_dmtimer *timer); - int (*write_status)(pwm_omap_dmtimer *timer, unsigned int value); -}; - -#endif /* __PWM_OMAP_DMTIMER_PDATA_H */ diff --git a/include/linux/platform_data/wilco-ec.h b/include/linux/platform_data/wilco-ec.h index afede15a95bf..25f46a939637 100644 --- a/include/linux/platform_data/wilco-ec.h +++ b/include/linux/platform_data/wilco-ec.h @@ -8,8 +8,8 @@ #ifndef WILCO_EC_H #define WILCO_EC_H -#include <linux/device.h> -#include <linux/kernel.h> +#include <linux/mutex.h> +#include <linux/types.h> /* Message flags for using the mailbox() interface */ #define WILCO_EC_FLAG_NO_RESPONSE BIT(0) /* EC does not respond */ @@ -17,6 +17,10 @@ /* Normal commands have a maximum 32 bytes of data */ #define EC_MAILBOX_DATA_SIZE 32 +struct device; +struct resource; +struct platform_device; + /** * struct wilco_ec_device - Wilco Embedded Controller handle. * @dev: Device handle. diff --git a/include/linux/power/bq2415x_charger.h b/include/linux/power/bq2415x_charger.h index 7a91b357e3ac..4ca08321e251 100644 --- a/include/linux/power/bq2415x_charger.h +++ b/include/linux/power/bq2415x_charger.h @@ -2,7 +2,7 @@ /* * bq2415x charger driver * - * Copyright (C) 2011-2013 Pali Rohár <pali.rohar@gmail.com> + * Copyright (C) 2011-2013 Pali Rohár <pali@kernel.org> */ #ifndef BQ2415X_CHARGER_H diff --git a/include/linux/printk.h b/include/linux/printk.h index 1e6108b8d15f..e061635e0409 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -202,7 +202,6 @@ __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...); void dump_stack_print_info(const char *log_lvl); void show_regs_print_info(const char *log_lvl); extern asmlinkage void dump_stack(void) __cold; -extern void printk_safe_init(void); extern void printk_safe_flush(void); extern void printk_safe_flush_on_panic(void); #else @@ -269,10 +268,6 @@ static inline void dump_stack(void) { } -static inline void printk_safe_init(void) -{ -} - static inline void printk_safe_flush(void) { } diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 0ef808d925bb..2635b2a55090 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -71,7 +71,8 @@ struct pwm_state { * @chip: PWM chip providing this PWM device * @chip_data: chip-private data associated with the PWM device * @args: PWM arguments - * @state: curent PWM channel state + * @state: last applied state + * @last: last implemented state (for PWM_DEBUG) */ struct pwm_device { const char *label; @@ -83,6 +84,7 @@ struct pwm_device { struct pwm_args args; struct pwm_state state; + struct pwm_state last; }; /** diff --git a/include/linux/slab.h b/include/linux/slab.h index 03a389358562..6d454886bcaf 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -501,7 +501,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags) * :ref:`Documentation/core-api/mm-api.rst <mm-api-gfp-flags>` * * The recommended usage of the @flags is described at - * :ref:`Documentation/core-api/memory-allocation.rst <memory-allocation>` + * :ref:`Documentation/core-api/memory-allocation.rst <memory_allocation>` * * Below is a brief outline of the most useful GFP flags * diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h new file mode 100644 index 000000000000..733acfb7ef84 --- /dev/null +++ b/include/linux/vdpa.h @@ -0,0 +1,253 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_VDPA_H +#define _LINUX_VDPA_H + +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/vhost_iotlb.h> + +/** + * vDPA callback definition. + * @callback: interrupt callback function + * @private: the data passed to the callback function + */ +struct vdpa_callback { + irqreturn_t (*callback)(void *data); + void *private; +}; + +/** + * vDPA device - representation of a vDPA device + * @dev: underlying device + * @dma_dev: the actual device that is performing DMA + * @config: the configuration ops for this device. + * @index: device index + */ +struct vdpa_device { + struct device dev; + struct device *dma_dev; + const struct vdpa_config_ops *config; + unsigned int index; +}; + +/** + * vDPA_config_ops - operations for configuring a vDPA device. + * Note: vDPA device drivers are required to implement all of the + * operations unless it is mentioned to be optional in the following + * list. + * + * @set_vq_address: Set the address of virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @desc_area: address of desc area + * @driver_area: address of driver area + * @device_area: address of device area + * Returns integer: success (0) or error (< 0) + * @set_vq_num: Set the size of virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @num: the size of virtqueue + * @kick_vq: Kick the virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @set_vq_cb: Set the interrupt callback function for + * a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @cb: virtio-vdev interrupt callback structure + * @set_vq_ready: Set ready status for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @ready: ready (true) not ready(false) + * @get_vq_ready: Get ready status for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * Returns boolean: ready (true) or not (false) + * @set_vq_state: Set the state for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * @state: virtqueue state (last_avail_idx) + * Returns integer: success (0) or error (< 0) + * @get_vq_state: Get the state for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * Returns virtqueue state (last_avail_idx) + * @get_vq_align: Get the virtqueue align requirement + * for the device + * @vdev: vdpa device + * Returns virtqueue algin requirement + * @get_features: Get virtio features supported by the device + * @vdev: vdpa device + * Returns the virtio features support by the + * device + * @set_features: Set virtio features supported by the driver + * @vdev: vdpa device + * @features: feature support by the driver + * Returns integer: success (0) or error (< 0) + * @set_config_cb: Set the config interrupt callback + * @vdev: vdpa device + * @cb: virtio-vdev interrupt callback structure + * @get_vq_num_max: Get the max size of virtqueue + * @vdev: vdpa device + * Returns u16: max size of virtqueue + * @get_device_id: Get virtio device id + * @vdev: vdpa device + * Returns u32: virtio device id + * @get_vendor_id: Get id for the vendor that provides this device + * @vdev: vdpa device + * Returns u32: virtio vendor id + * @get_status: Get the device status + * @vdev: vdpa device + * Returns u8: virtio device status + * @set_status: Set the device status + * @vdev: vdpa device + * @status: virtio device status + * @get_config: Read from device specific configuration space + * @vdev: vdpa device + * @offset: offset from the beginning of + * configuration space + * @buf: buffer used to read to + * @len: the length to read from + * configuration space + * @set_config: Write to device specific configuration space + * @vdev: vdpa device + * @offset: offset from the beginning of + * configuration space + * @buf: buffer used to write from + * @len: the length to write to + * configuration space + * @get_generation: Get device config generation (optional) + * @vdev: vdpa device + * Returns u32: device generation + * @set_map: Set device memory mapping (optional) + * Needed for device that using device + * specific DMA translation (on-chip IOMMU) + * @vdev: vdpa device + * @iotlb: vhost memory mapping to be + * used by the vDPA + * Returns integer: success (0) or error (< 0) + * @dma_map: Map an area of PA to IOVA (optional) + * Needed for device that using device + * specific DMA translation (on-chip IOMMU) + * and preferring incremental map. + * @vdev: vdpa device + * @iova: iova to be mapped + * @size: size of the area + * @pa: physical address for the map + * @perm: device access permission (VHOST_MAP_XX) + * Returns integer: success (0) or error (< 0) + * @dma_unmap: Unmap an area of IOVA (optional but + * must be implemented with dma_map) + * Needed for device that using device + * specific DMA translation (on-chip IOMMU) + * and preferring incremental unmap. + * @vdev: vdpa device + * @iova: iova to be unmapped + * @size: size of the area + * Returns integer: success (0) or error (< 0) + * @free: Free resources that belongs to vDPA (optional) + * @vdev: vdpa device + */ +struct vdpa_config_ops { + /* Virtqueue ops */ + int (*set_vq_address)(struct vdpa_device *vdev, + u16 idx, u64 desc_area, u64 driver_area, + u64 device_area); + void (*set_vq_num)(struct vdpa_device *vdev, u16 idx, u32 num); + void (*kick_vq)(struct vdpa_device *vdev, u16 idx); + void (*set_vq_cb)(struct vdpa_device *vdev, u16 idx, + struct vdpa_callback *cb); + void (*set_vq_ready)(struct vdpa_device *vdev, u16 idx, bool ready); + bool (*get_vq_ready)(struct vdpa_device *vdev, u16 idx); + int (*set_vq_state)(struct vdpa_device *vdev, u16 idx, u64 state); + u64 (*get_vq_state)(struct vdpa_device *vdev, u16 idx); + + /* Device ops */ + u16 (*get_vq_align)(struct vdpa_device *vdev); + u64 (*get_features)(struct vdpa_device *vdev); + int (*set_features)(struct vdpa_device *vdev, u64 features); + void (*set_config_cb)(struct vdpa_device *vdev, + struct vdpa_callback *cb); + u16 (*get_vq_num_max)(struct vdpa_device *vdev); + u32 (*get_device_id)(struct vdpa_device *vdev); + u32 (*get_vendor_id)(struct vdpa_device *vdev); + u8 (*get_status)(struct vdpa_device *vdev); + void (*set_status)(struct vdpa_device *vdev, u8 status); + void (*get_config)(struct vdpa_device *vdev, unsigned int offset, + void *buf, unsigned int len); + void (*set_config)(struct vdpa_device *vdev, unsigned int offset, + const void *buf, unsigned int len); + u32 (*get_generation)(struct vdpa_device *vdev); + + /* DMA ops */ + int (*set_map)(struct vdpa_device *vdev, struct vhost_iotlb *iotlb); + int (*dma_map)(struct vdpa_device *vdev, u64 iova, u64 size, + u64 pa, u32 perm); + int (*dma_unmap)(struct vdpa_device *vdev, u64 iova, u64 size); + + /* Free device resources */ + void (*free)(struct vdpa_device *vdev); +}; + +struct vdpa_device *__vdpa_alloc_device(struct device *parent, + const struct vdpa_config_ops *config, + size_t size); + +#define vdpa_alloc_device(dev_struct, member, parent, config) \ + container_of(__vdpa_alloc_device( \ + parent, config, \ + sizeof(dev_struct) + \ + BUILD_BUG_ON_ZERO(offsetof( \ + dev_struct, member))), \ + dev_struct, member) + +int vdpa_register_device(struct vdpa_device *vdev); +void vdpa_unregister_device(struct vdpa_device *vdev); + +/** + * vdpa_driver - operations for a vDPA driver + * @driver: underlying device driver + * @probe: the function to call when a device is found. Returns 0 or -errno. + * @remove: the function to call when a device is removed. + */ +struct vdpa_driver { + struct device_driver driver; + int (*probe)(struct vdpa_device *vdev); + void (*remove)(struct vdpa_device *vdev); +}; + +#define vdpa_register_driver(drv) \ + __vdpa_register_driver(drv, THIS_MODULE) +int __vdpa_register_driver(struct vdpa_driver *drv, struct module *owner); +void vdpa_unregister_driver(struct vdpa_driver *drv); + +#define module_vdpa_driver(__vdpa_driver) \ + module_driver(__vdpa_driver, vdpa_register_driver, \ + vdpa_unregister_driver) + +static inline struct vdpa_driver *drv_to_vdpa(struct device_driver *driver) +{ + return container_of(driver, struct vdpa_driver, driver); +} + +static inline struct vdpa_device *dev_to_vdpa(struct device *_dev) +{ + return container_of(_dev, struct vdpa_device, dev); +} + +static inline void *vdpa_get_drvdata(const struct vdpa_device *vdev) +{ + return dev_get_drvdata(&vdev->dev); +} + +static inline void vdpa_set_drvdata(struct vdpa_device *vdev, void *data) +{ + dev_set_drvdata(&vdev->dev, data); +} + +static inline struct device *vdpa_get_dma_dev(struct vdpa_device *vdev) +{ + return vdev->dma_dev; +} +#endif /* _LINUX_VDPA_H */ diff --git a/include/linux/vhost_iotlb.h b/include/linux/vhost_iotlb.h new file mode 100644 index 000000000000..6b09b786a762 --- /dev/null +++ b/include/linux/vhost_iotlb.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_VHOST_IOTLB_H +#define _LINUX_VHOST_IOTLB_H + +#include <linux/interval_tree_generic.h> + +struct vhost_iotlb_map { + struct rb_node rb; + struct list_head link; + u64 start; + u64 last; + u64 size; + u64 addr; +#define VHOST_MAP_RO 0x1 +#define VHOST_MAP_WO 0x2 +#define VHOST_MAP_RW 0x3 + u32 perm; + u32 flags_padding; + u64 __subtree_last; +}; + +#define VHOST_IOTLB_FLAG_RETIRE 0x1 + +struct vhost_iotlb { + struct rb_root_cached root; + struct list_head list; + unsigned int limit; + unsigned int nmaps; + unsigned int flags; +}; + +int vhost_iotlb_add_range(struct vhost_iotlb *iotlb, u64 start, u64 last, + u64 addr, unsigned int perm); +void vhost_iotlb_del_range(struct vhost_iotlb *iotlb, u64 start, u64 last); + +struct vhost_iotlb *vhost_iotlb_alloc(unsigned int limit, unsigned int flags); +void vhost_iotlb_free(struct vhost_iotlb *iotlb); +void vhost_iotlb_reset(struct vhost_iotlb *iotlb); + +struct vhost_iotlb_map * +vhost_iotlb_itree_first(struct vhost_iotlb *iotlb, u64 start, u64 last); +struct vhost_iotlb_map * +vhost_iotlb_itree_next(struct vhost_iotlb_map *map, u64 start, u64 last); + +void vhost_iotlb_map_free(struct vhost_iotlb *iotlb, + struct vhost_iotlb_map *map); +#endif diff --git a/include/linux/vringh.h b/include/linux/vringh.h index d237087eb257..bd0503ca6f8f 100644 --- a/include/linux/vringh.h +++ b/include/linux/vringh.h @@ -14,6 +14,8 @@ #include <linux/virtio_byteorder.h> #include <linux/uio.h> #include <linux/slab.h> +#include <linux/dma-direction.h> +#include <linux/vhost_iotlb.h> #include <asm/barrier.h> /* virtio_ring with information needed for host access. */ @@ -39,6 +41,9 @@ struct vringh { /* The vring (note: it may contain user pointers!) */ struct vring vring; + /* IOTLB for this vring */ + struct vhost_iotlb *iotlb; + /* The function to call to notify the guest about added buffers */ void (*notify)(struct vringh *); }; @@ -248,4 +253,35 @@ static inline __virtio64 cpu_to_vringh64(const struct vringh *vrh, u64 val) { return __cpu_to_virtio64(vringh_is_little_endian(vrh), val); } + +void vringh_set_iotlb(struct vringh *vrh, struct vhost_iotlb *iotlb); + +int vringh_init_iotlb(struct vringh *vrh, u64 features, + unsigned int num, bool weak_barriers, + struct vring_desc *desc, + struct vring_avail *avail, + struct vring_used *used); + +int vringh_getdesc_iotlb(struct vringh *vrh, + struct vringh_kiov *riov, + struct vringh_kiov *wiov, + u16 *head, + gfp_t gfp); + +ssize_t vringh_iov_pull_iotlb(struct vringh *vrh, + struct vringh_kiov *riov, + void *dst, size_t len); +ssize_t vringh_iov_push_iotlb(struct vringh *vrh, + struct vringh_kiov *wiov, + const void *src, size_t len); + +void vringh_abandon_iotlb(struct vringh *vrh, unsigned int num); + +int vringh_complete_iotlb(struct vringh *vrh, u16 head, u32 len); + +bool vringh_notify_enable_iotlb(struct vringh *vrh); +void vringh_notify_disable_iotlb(struct vringh *vrh); + +int vringh_need_notify_iotlb(struct vringh *vrh); + #endif /* _LINUX_VRINGH_H */ |