| /* |
| * Remote Processor Framework |
| * |
| * Copyright(c) 2011 Texas Instruments, Inc. |
| * Copyright(c) 2011 Google, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Texas Instruments nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 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. |
| */ |
| |
| #ifndef REMOTEPROC_H |
| #define REMOTEPROC_H |
| |
| #include <linux/types.h> |
| #include <linux/mutex.h> |
| #include <linux/virtio.h> |
| #include <linux/cdev.h> |
| #include <linux/completion.h> |
| #include <linux/idr.h> |
| #include <linux/of.h> |
| |
| /** |
| * struct resource_table - firmware resource table header |
| * @ver: version number |
| * @num: number of resource entries |
| * @reserved: reserved (must be zero) |
| * @offset: array of offsets pointing at the various resource entries |
| * |
| * A resource table is essentially a list of system resources required |
| * by the remote processor. It may also include configuration entries. |
| * If needed, the remote processor firmware should contain this table |
| * as a dedicated ".resource_table" ELF section. |
| * |
| * Some resources entries are mere announcements, where the host is informed |
| * of specific remoteproc configuration. Other entries require the host to |
| * do something (e.g. allocate a system resource). Sometimes a negotiation |
| * is expected, where the firmware requests a resource, and once allocated, |
| * the host should provide back its details (e.g. address of an allocated |
| * memory region). |
| * |
| * The header of the resource table, as expressed by this structure, |
| * contains a version number (should we need to change this format in the |
| * future), the number of available resource entries, and their offsets |
| * in the table. |
| * |
| * Immediately following this header are the resource entries themselves, |
| * each of which begins with a resource entry header (as described below). |
| */ |
| struct resource_table { |
| u32 ver; |
| u32 num; |
| u32 reserved[2]; |
| u32 offset[]; |
| } __packed; |
| |
| /** |
| * struct fw_rsc_hdr - firmware resource entry header |
| * @type: resource type |
| * @data: resource data |
| * |
| * Every resource entry begins with a 'struct fw_rsc_hdr' header providing |
| * its @type. The content of the entry itself will immediately follow |
| * this header, and it should be parsed according to the resource type. |
| */ |
| struct fw_rsc_hdr { |
| u32 type; |
| u8 data[]; |
| } __packed; |
| |
| /** |
| * enum fw_resource_type - types of resource entries |
| * |
| * @RSC_CARVEOUT: request for allocation of a physically contiguous |
| * memory region. |
| * @RSC_DEVMEM: request to iommu_map a memory-based peripheral. |
| * @RSC_TRACE: announces the availability of a trace buffer into which |
| * the remote processor will be writing logs. |
| * @RSC_VDEV: declare support for a virtio device, and serve as its |
| * virtio header. |
| * @RSC_LAST: just keep this one at the end of standard resources |
| * @RSC_VENDOR_START: start of the vendor specific resource types range |
| * @RSC_VENDOR_END: end of the vendor specific resource types range |
| * |
| * For more details regarding a specific resource type, please see its |
| * dedicated structure below. |
| * |
| * Please note that these values are used as indices to the rproc_handle_rsc |
| * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to |
| * check the validity of an index before the lookup table is accessed, so |
| * please update it as needed. |
| */ |
| enum fw_resource_type { |
| RSC_CARVEOUT = 0, |
| RSC_DEVMEM = 1, |
| RSC_TRACE = 2, |
| RSC_VDEV = 3, |
| RSC_LAST = 4, |
| RSC_VENDOR_START = 128, |
| RSC_VENDOR_END = 512, |
| }; |
| |
| #define FW_RSC_ADDR_ANY (-1) |
| |
| /** |
| * struct fw_rsc_carveout - physically contiguous memory request |
| * @da: device address |
| * @pa: physical address |
| * @len: length (in bytes) |
| * @flags: iommu protection flags |
| * @reserved: reserved (must be zero) |
| * @name: human-readable name of the requested memory region |
| * |
| * This resource entry requests the host to allocate a physically contiguous |
| * memory region. |
| * |
| * These request entries should precede other firmware resource entries, |
| * as other entries might request placing other data objects inside |
| * these memory regions (e.g. data/code segments, trace resource entries, ...). |
| * |
| * Allocating memory this way helps utilizing the reserved physical memory |
| * (e.g. CMA) more efficiently, and also minimizes the number of TLB entries |
| * needed to map it (in case @rproc is using an IOMMU). Reducing the TLB |
| * pressure is important; it may have a substantial impact on performance. |
| * |
| * If the firmware is compiled with static addresses, then @da should specify |
| * the expected device address of this memory region. If @da is set to |
| * FW_RSC_ADDR_ANY, then the host will dynamically allocate it, and then |
| * overwrite @da with the dynamically allocated address. |
| * |
| * We will always use @da to negotiate the device addresses, even if it |
| * isn't using an iommu. In that case, though, it will obviously contain |
| * physical addresses. |
| * |
| * Some remote processors needs to know the allocated physical address |
| * even if they do use an iommu. This is needed, e.g., if they control |
| * hardware accelerators which access the physical memory directly (this |
| * is the case with OMAP4 for instance). In that case, the host will |
| * overwrite @pa with the dynamically allocated physical address. |
| * Generally we don't want to expose physical addresses if we don't have to |
| * (remote processors are generally _not_ trusted), so we might want to |
| * change this to happen _only_ when explicitly required by the hardware. |
| * |
| * @flags is used to provide IOMMU protection flags, and @name should |
| * (optionally) contain a human readable name of this carveout region |
| * (mainly for debugging purposes). |
| */ |
| struct fw_rsc_carveout { |
| u32 da; |
| u32 pa; |
| u32 len; |
| u32 flags; |
| u32 reserved; |
| u8 name[32]; |
| } __packed; |
| |
| /** |
| * struct fw_rsc_devmem - iommu mapping request |
| * @da: device address |
| * @pa: physical address |
| * @len: length (in bytes) |
| * @flags: iommu protection flags |
| * @reserved: reserved (must be zero) |
| * @name: human-readable name of the requested region to be mapped |
| * |
| * This resource entry requests the host to iommu map a physically contiguous |
| * memory region. This is needed in case the remote processor requires |
| * access to certain memory-based peripherals; _never_ use it to access |
| * regular memory. |
| * |
| * This is obviously only needed if the remote processor is accessing memory |
| * via an iommu. |
| * |
| * @da should specify the required device address, @pa should specify |
| * the physical address we want to map, @len should specify the size of |
| * the mapping and @flags is the IOMMU protection flags. As always, @name may |
| * (optionally) contain a human readable name of this mapping (mainly for |
| * debugging purposes). |
| * |
| * Note: at this point we just "trust" those devmem entries to contain valid |
| * physical addresses, but this isn't safe and will be changed: eventually we |
| * want remoteproc implementations to provide us ranges of physical addresses |
| * the firmware is allowed to request, and not allow firmwares to request |
| * access to physical addresses that are outside those ranges. |
| */ |
| struct fw_rsc_devmem { |
| u32 da; |
| u32 pa; |
| u32 len; |
| u32 flags; |
| u32 reserved; |
| u8 name[32]; |
| } __packed; |
| |
| /** |
| * struct fw_rsc_trace - trace buffer declaration |
| * @da: device address |
| * @len: length (in bytes) |
| * @reserved: reserved (must be zero) |
| * @name: human-readable name of the trace buffer |
| * |
| * This resource entry provides the host information about a trace buffer |
| * into which the remote processor will write log messages. |
| * |
| * @da specifies the device address of the buffer, @len specifies |
| * its size, and @name may contain a human readable name of the trace buffer. |
| * |
| * After booting the remote processor, the trace buffers are exposed to the |
| * user via debugfs entries (called trace0, trace1, etc..). |
| */ |
| struct fw_rsc_trace { |
| u32 da; |
| u32 len; |
| u32 reserved; |
| u8 name[32]; |
| } __packed; |
| |
| /** |
| * struct fw_rsc_vdev_vring - vring descriptor entry |
| * @da: device address |
| * @align: the alignment between the consumer and producer parts of the vring |
| * @num: num of buffers supported by this vring (must be power of two) |
| * @notifyid is a unique rproc-wide notify index for this vring. This notify |
| * index is used when kicking a remote processor, to let it know that this |
| * vring is triggered. |
| * @pa: physical address |
| * |
| * This descriptor is not a resource entry by itself; it is part of the |
| * vdev resource type (see below). |
| * |
| * Note that @da should either contain the device address where |
| * the remote processor is expecting the vring, or indicate that |
| * dynamically allocation of the vring's device address is supported. |
| */ |
| struct fw_rsc_vdev_vring { |
| u32 da; |
| u32 align; |
| u32 num; |
| u32 notifyid; |
| u32 pa; |
| } __packed; |
| |
| /** |
| * struct fw_rsc_vdev - virtio device header |
| * @id: virtio device id (as in virtio_ids.h) |
| * @notifyid is a unique rproc-wide notify index for this vdev. This notify |
| * index is used when kicking a remote processor, to let it know that the |
| * status/features of this vdev have changes. |
| * @dfeatures specifies the virtio device features supported by the firmware |
| * @gfeatures is a place holder used by the host to write back the |
| * negotiated features that are supported by both sides. |
| * @config_len is the size of the virtio config space of this vdev. The config |
| * space lies in the resource table immediate after this vdev header. |
| * @status is a place holder where the host will indicate its virtio progress. |
| * @num_of_vrings indicates how many vrings are described in this vdev header |
| * @reserved: reserved (must be zero) |
| * @vring is an array of @num_of_vrings entries of 'struct fw_rsc_vdev_vring'. |
| * |
| * This resource is a virtio device header: it provides information about |
| * the vdev, and is then used by the host and its peer remote processors |
| * to negotiate and share certain virtio properties. |
| * |
| * By providing this resource entry, the firmware essentially asks remoteproc |
| * to statically allocate a vdev upon registration of the rproc (dynamic vdev |
| * allocation is not yet supported). |
| * |
| * Note: unlike virtualization systems, the term 'host' here means |
| * the Linux side which is running remoteproc to control the remote |
| * processors. We use the name 'gfeatures' to comply with virtio's terms, |
| * though there isn't really any virtualized guest OS here: it's the host |
| * which is responsible for negotiating the final features. |
| * Yeah, it's a bit confusing. |
| * |
| * Note: immediately following this structure is the virtio config space for |
| * this vdev (which is specific to the vdev; for more info, read the virtio |
| * spec). the size of the config space is specified by @config_len. |
| */ |
| struct fw_rsc_vdev { |
| u32 id; |
| u32 notifyid; |
| u32 dfeatures; |
| u32 gfeatures; |
| u32 config_len; |
| u8 status; |
| u8 num_of_vrings; |
| u8 reserved[2]; |
| struct fw_rsc_vdev_vring vring[]; |
| } __packed; |
| |
| struct rproc; |
| |
| /** |
| * struct rproc_mem_entry - memory entry descriptor |
| * @va: virtual address |
| * @dma: dma address |
| * @len: length, in bytes |
| * @da: device address |
| * @release: release associated memory |
| * @priv: associated data |
| * @name: associated memory region name (optional) |
| * @node: list node |
| * @rsc_offset: offset in resource table |
| * @flags: iommu protection flags |
| * @of_resm_idx: reserved memory phandle index |
| * @alloc: specific memory allocator function |
| */ |
| struct rproc_mem_entry { |
| void *va; |
| dma_addr_t dma; |
| size_t len; |
| u32 da; |
| void *priv; |
| char name[32]; |
| struct list_head node; |
| u32 rsc_offset; |
| u32 flags; |
| u32 of_resm_idx; |
| int (*alloc)(struct rproc *rproc, struct rproc_mem_entry *mem); |
| int (*release)(struct rproc *rproc, struct rproc_mem_entry *mem); |
| }; |
| |
| struct firmware; |
| |
| /** |
| * enum rsc_handling_status - return status of rproc_ops handle_rsc hook |
| * @RSC_HANDLED: resource was handled |
| * @RSC_IGNORED: resource was ignored |
| */ |
| enum rsc_handling_status { |
| RSC_HANDLED = 0, |
| RSC_IGNORED = 1, |
| }; |
| |
| /** |
| * struct rproc_ops - platform-specific device handlers |
| * @prepare: prepare device for code loading |
| * @unprepare: unprepare device after stop |
| * @start: power on the device and boot it |
| * @stop: power off the device |
| * @attach: attach to a device that his already powered up |
| * @kick: kick a virtqueue (virtqueue id given as a parameter) |
| * @da_to_va: optional platform hook to perform address translations |
| * @parse_fw: parse firmware to extract information (e.g. resource table) |
| * @handle_rsc: optional platform hook to handle vendor resources. Should return |
| * RSC_HANDLED if resource was handled, RSC_IGNORED if not handled and a |
| * negative value on error |
| * @load_rsc_table: load resource table from firmware image |
| * @find_loaded_rsc_table: find the loaded resouce table |
| * @load: load firmware to memory, where the remote processor |
| * expects to find it |
| * @sanity_check: sanity check the fw image |
| * @get_boot_addr: get boot address to entry point specified in firmware |
| * @panic: optional callback to react to system panic, core will delay |
| * panic at least the returned number of milliseconds |
| * @coredump: collect firmware dump after the subsystem is shutdown |
| */ |
| struct rproc_ops { |
| int (*prepare)(struct rproc *rproc); |
| int (*unprepare)(struct rproc *rproc); |
| int (*start)(struct rproc *rproc); |
| int (*stop)(struct rproc *rproc); |
| int (*attach)(struct rproc *rproc); |
| void (*kick)(struct rproc *rproc, int vqid); |
| void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len); |
| int (*parse_fw)(struct rproc *rproc, const struct firmware *fw); |
| int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc, |
| int offset, int avail); |
| struct resource_table *(*find_loaded_rsc_table)( |
| struct rproc *rproc, const struct firmware *fw); |
| int (*load)(struct rproc *rproc, const struct firmware *fw); |
| int (*sanity_check)(struct rproc *rproc, const struct firmware *fw); |
| u64 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw); |
| unsigned long (*panic)(struct rproc *rproc); |
| void (*coredump)(struct rproc *rproc); |
| }; |
| |
| /** |
| * enum rproc_state - remote processor states |
| * @RPROC_OFFLINE: device is powered off |
| * @RPROC_SUSPENDED: device is suspended; needs to be woken up to receive |
| * a message. |
| * @RPROC_RUNNING: device is up and running |
| * @RPROC_CRASHED: device has crashed; need to start recovery |
| * @RPROC_DELETED: device is deleted |
| * @RPROC_DETACHED: device has been booted by another entity and waiting |
| * for the core to attach to it |
| * @RPROC_LAST: just keep this one at the end |
| * |
| * Please note that the values of these states are used as indices |
| * to rproc_state_string, a state-to-name lookup table, |
| * so please keep the two synchronized. @RPROC_LAST is used to check |
| * the validity of an index before the lookup table is accessed, so |
| * please update it as needed too. |
| */ |
| enum rproc_state { |
| RPROC_OFFLINE = 0, |
| RPROC_SUSPENDED = 1, |
| RPROC_RUNNING = 2, |
| RPROC_CRASHED = 3, |
| RPROC_DELETED = 4, |
| RPROC_DETACHED = 5, |
| RPROC_LAST = 6, |
| }; |
| |
| /** |
| * enum rproc_crash_type - remote processor crash types |
| * @RPROC_MMUFAULT: iommu fault |
| * @RPROC_WATCHDOG: watchdog bite |
| * @RPROC_FATAL_ERROR fatal error |
| * |
| * Each element of the enum is used as an array index. So that, the value of |
| * the elements should be always something sane. |
| * |
| * Feel free to add more types when needed. |
| */ |
| enum rproc_crash_type { |
| RPROC_MMUFAULT, |
| RPROC_WATCHDOG, |
| RPROC_FATAL_ERROR, |
| }; |
| |
| /** |
| * enum rproc_dump_mechanism - Coredump options for core |
| * @RPROC_COREDUMP_DISABLED: Don't perform any dump |
| * @RPROC_COREDUMP_ENABLED: Copy dump to separate buffer and carry on with |
| recovery |
| * @RPROC_COREDUMP_INLINE: Read segments directly from device memory. Stall |
| recovery until all segments are read |
| */ |
| enum rproc_dump_mechanism { |
| RPROC_COREDUMP_DISABLED, |
| RPROC_COREDUMP_ENABLED, |
| RPROC_COREDUMP_INLINE, |
| }; |
| |
| /** |
| * struct rproc_dump_segment - segment info from ELF header |
| * @node: list node related to the rproc segment list |
| * @da: device address of the segment |
| * @size: size of the segment |
| * @priv: private data associated with the dump_segment |
| * @dump: custom dump function to fill device memory segment associated |
| * with coredump |
| */ |
| struct rproc_dump_segment { |
| struct list_head node; |
| |
| dma_addr_t da; |
| size_t size; |
| |
| void *priv; |
| void (*dump)(struct rproc *rproc, struct rproc_dump_segment *segment, |
| void *dest, size_t offset, size_t size); |
| loff_t offset; |
| }; |
| |
| /** |
| * struct rproc - represents a physical remote processor device |
| * @node: list node of this rproc object |
| * @domain: iommu domain |
| * @name: human readable name of the rproc |
| * @firmware: name of firmware file to be loaded |
| * @priv: private data which belongs to the platform-specific rproc module |
| * @ops: platform-specific start/stop rproc handlers |
| * @dev: virtual device for refcounting and common remoteproc behavior |
| * @power: refcount of users who need this rproc powered up |
| * @state: state of the device |
| * @dump_conf: Currently selected coredump configuration |
| * @lock: lock which protects concurrent manipulations of the rproc |
| * @dbg_dir: debugfs directory of this rproc device |
| * @traces: list of trace buffers |
| * @num_traces: number of trace buffers |
| * @carveouts: list of physically contiguous memory allocations |
| * @mappings: list of iommu mappings we initiated, needed on shutdown |
| * @bootaddr: address of first instruction to boot rproc with (optional) |
| * @rvdevs: list of remote virtio devices |
| * @subdevs: list of subdevices, to following the running state |
| * @notifyids: idr for dynamically assigning rproc-wide unique notify ids |
| * @index: index of this rproc device |
| * @crash_handler: workqueue for handling a crash |
| * @crash_cnt: crash counter |
| * @recovery_disabled: flag that state if recovery was disabled |
| * @max_notifyid: largest allocated notify id. |
| * @table_ptr: pointer to the resource table in effect |
| * @cached_table: copy of the resource table |
| * @table_sz: size of @cached_table |
| * @has_iommu: flag to indicate if remote processor is behind an MMU |
| * @auto_boot: flag to indicate if remote processor should be auto-started |
| * @autonomous: true if an external entity has booted the remote processor |
| * @dump_segments: list of segments in the firmware |
| * @nb_vdev: number of vdev currently handled by rproc |
| * @char_dev: character device of the rproc |
| * @cdev_put_on_release: flag to indicate if remoteproc should be shutdown on @char_dev release |
| */ |
| struct rproc { |
| struct list_head node; |
| struct iommu_domain *domain; |
| const char *name; |
| const char *firmware; |
| void *priv; |
| struct rproc_ops *ops; |
| struct device dev; |
| atomic_t power; |
| unsigned int state; |
| enum rproc_dump_mechanism dump_conf; |
| struct mutex lock; |
| struct dentry *dbg_dir; |
| struct list_head traces; |
| int num_traces; |
| struct list_head carveouts; |
| struct list_head mappings; |
| u64 bootaddr; |
| struct list_head rvdevs; |
| struct list_head subdevs; |
| struct idr notifyids; |
| int index; |
| struct work_struct crash_handler; |
| unsigned int crash_cnt; |
| bool recovery_disabled; |
| int max_notifyid; |
| struct resource_table *table_ptr; |
| struct resource_table *cached_table; |
| size_t table_sz; |
| bool has_iommu; |
| bool auto_boot; |
| bool autonomous; |
| struct list_head dump_segments; |
| int nb_vdev; |
| u8 elf_class; |
| u16 elf_machine; |
| struct cdev cdev; |
| bool cdev_put_on_release; |
| }; |
| |
| /** |
| * struct rproc_subdev - subdevice tied to a remoteproc |
| * @node: list node related to the rproc subdevs list |
| * @prepare: prepare function, called before the rproc is started |
| * @start: start function, called after the rproc has been started |
| * @stop: stop function, called before the rproc is stopped; the @crashed |
| * parameter indicates if this originates from a recovery |
| * @unprepare: unprepare function, called after the rproc has been stopped |
| */ |
| struct rproc_subdev { |
| struct list_head node; |
| |
| int (*prepare)(struct rproc_subdev *subdev); |
| int (*start)(struct rproc_subdev *subdev); |
| void (*stop)(struct rproc_subdev *subdev, bool crashed); |
| void (*unprepare)(struct rproc_subdev *subdev); |
| }; |
| |
| /* we currently support only two vrings per rvdev */ |
| |
| #define RVDEV_NUM_VRINGS 2 |
| |
| /** |
| * struct rproc_vring - remoteproc vring state |
| * @va: virtual address |
| * @len: length, in bytes |
| * @da: device address |
| * @align: vring alignment |
| * @notifyid: rproc-specific unique vring index |
| * @rvdev: remote vdev |
| * @vq: the virtqueue of this vring |
| */ |
| struct rproc_vring { |
| void *va; |
| int len; |
| u32 da; |
| u32 align; |
| int notifyid; |
| struct rproc_vdev *rvdev; |
| struct virtqueue *vq; |
| }; |
| |
| /** |
| * struct rproc_vdev - remoteproc state for a supported virtio device |
| * @refcount: reference counter for the vdev and vring allocations |
| * @subdev: handle for registering the vdev as a rproc subdevice |
| * @id: virtio device id (as in virtio_ids.h) |
| * @node: list node |
| * @rproc: the rproc handle |
| * @vdev: the virio device |
| * @vring: the vrings for this vdev |
| * @rsc_offset: offset of the vdev's resource entry |
| * @index: vdev position versus other vdev declared in resource table |
| */ |
| struct rproc_vdev { |
| struct kref refcount; |
| |
| struct rproc_subdev subdev; |
| struct device dev; |
| |
| unsigned int id; |
| struct list_head node; |
| struct rproc *rproc; |
| struct rproc_vring vring[RVDEV_NUM_VRINGS]; |
| u32 rsc_offset; |
| u32 index; |
| }; |
| |
| struct rproc *rproc_get_by_phandle(phandle phandle); |
| struct rproc *rproc_get_by_child(struct device *dev); |
| |
| struct rproc *rproc_alloc(struct device *dev, const char *name, |
| const struct rproc_ops *ops, |
| const char *firmware, int len); |
| void rproc_put(struct rproc *rproc); |
| int rproc_add(struct rproc *rproc); |
| int rproc_del(struct rproc *rproc); |
| void rproc_free(struct rproc *rproc); |
| void rproc_resource_cleanup(struct rproc *rproc); |
| |
| struct rproc *devm_rproc_alloc(struct device *dev, const char *name, |
| const struct rproc_ops *ops, |
| const char *firmware, int len); |
| int devm_rproc_add(struct device *dev, struct rproc *rproc); |
| |
| void rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem); |
| |
| struct rproc_mem_entry * |
| rproc_mem_entry_init(struct device *dev, |
| void *va, dma_addr_t dma, size_t len, u32 da, |
| int (*alloc)(struct rproc *, struct rproc_mem_entry *), |
| int (*release)(struct rproc *, struct rproc_mem_entry *), |
| const char *name, ...); |
| |
| struct rproc_mem_entry * |
| rproc_of_resm_mem_entry_init(struct device *dev, u32 of_resm_idx, size_t len, |
| u32 da, const char *name, ...); |
| |
| int rproc_boot(struct rproc *rproc); |
| void rproc_shutdown(struct rproc *rproc); |
| int rproc_set_firmware(struct rproc *rproc, const char *fw_name); |
| void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type); |
| void rproc_coredump_using_sections(struct rproc *rproc); |
| int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size); |
| int rproc_coredump_add_custom_segment(struct rproc *rproc, |
| dma_addr_t da, size_t size, |
| void (*dumpfn)(struct rproc *rproc, |
| struct rproc_dump_segment *segment, |
| void *dest, size_t offset, |
| size_t size), |
| void *priv); |
| int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine); |
| |
| static inline struct rproc_vdev *vdev_to_rvdev(struct virtio_device *vdev) |
| { |
| return container_of(vdev->dev.parent, struct rproc_vdev, dev); |
| } |
| |
| static inline struct rproc *vdev_to_rproc(struct virtio_device *vdev) |
| { |
| struct rproc_vdev *rvdev = vdev_to_rvdev(vdev); |
| |
| return rvdev->rproc; |
| } |
| |
| void rproc_add_subdev(struct rproc *rproc, struct rproc_subdev *subdev); |
| |
| void rproc_remove_subdev(struct rproc *rproc, struct rproc_subdev *subdev); |
| |
| #endif /* REMOTEPROC_H */ |