709 строки
25 KiB
C
709 строки
25 KiB
C
/*
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* Remote Processor Framework
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*
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* Copyright(c) 2011 Texas Instruments, Inc.
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* Copyright(c) 2011 Google, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Texas Instruments nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef REMOTEPROC_H
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#define REMOTEPROC_H
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#include <linux/types.h>
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#include <linux/mutex.h>
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#include <linux/virtio.h>
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#include <linux/cdev.h>
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#include <linux/completion.h>
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#include <linux/idr.h>
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#include <linux/of.h>
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/**
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* struct resource_table - firmware resource table header
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* @ver: version number
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* @num: number of resource entries
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* @reserved: reserved (must be zero)
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* @offset: array of offsets pointing at the various resource entries
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*
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* A resource table is essentially a list of system resources required
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* by the remote processor. It may also include configuration entries.
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* If needed, the remote processor firmware should contain this table
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* as a dedicated ".resource_table" ELF section.
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*
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* Some resources entries are mere announcements, where the host is informed
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* of specific remoteproc configuration. Other entries require the host to
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* do something (e.g. allocate a system resource). Sometimes a negotiation
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* is expected, where the firmware requests a resource, and once allocated,
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* the host should provide back its details (e.g. address of an allocated
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* memory region).
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*
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* The header of the resource table, as expressed by this structure,
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* contains a version number (should we need to change this format in the
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* future), the number of available resource entries, and their offsets
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* in the table.
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*
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* Immediately following this header are the resource entries themselves,
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* each of which begins with a resource entry header (as described below).
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*/
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struct resource_table {
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u32 ver;
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u32 num;
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u32 reserved[2];
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u32 offset[];
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} __packed;
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/**
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* struct fw_rsc_hdr - firmware resource entry header
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* @type: resource type
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* @data: resource data
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*
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* Every resource entry begins with a 'struct fw_rsc_hdr' header providing
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* its @type. The content of the entry itself will immediately follow
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* this header, and it should be parsed according to the resource type.
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*/
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struct fw_rsc_hdr {
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u32 type;
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u8 data[];
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} __packed;
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/**
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* enum fw_resource_type - types of resource entries
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*
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* @RSC_CARVEOUT: request for allocation of a physically contiguous
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* memory region.
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* @RSC_DEVMEM: request to iommu_map a memory-based peripheral.
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* @RSC_TRACE: announces the availability of a trace buffer into which
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* the remote processor will be writing logs.
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* @RSC_VDEV: declare support for a virtio device, and serve as its
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* virtio header.
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* @RSC_LAST: just keep this one at the end of standard resources
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* @RSC_VENDOR_START: start of the vendor specific resource types range
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* @RSC_VENDOR_END: end of the vendor specific resource types range
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*
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* For more details regarding a specific resource type, please see its
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* dedicated structure below.
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*
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* Please note that these values are used as indices to the rproc_handle_rsc
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* lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
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* check the validity of an index before the lookup table is accessed, so
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* please update it as needed.
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*/
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enum fw_resource_type {
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RSC_CARVEOUT = 0,
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RSC_DEVMEM = 1,
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RSC_TRACE = 2,
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RSC_VDEV = 3,
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RSC_LAST = 4,
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RSC_VENDOR_START = 128,
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RSC_VENDOR_END = 512,
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};
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#define FW_RSC_ADDR_ANY (-1)
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/**
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* struct fw_rsc_carveout - physically contiguous memory request
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* @da: device address
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* @pa: physical address
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* @len: length (in bytes)
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* @flags: iommu protection flags
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* @reserved: reserved (must be zero)
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* @name: human-readable name of the requested memory region
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*
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* This resource entry requests the host to allocate a physically contiguous
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* memory region.
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*
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* These request entries should precede other firmware resource entries,
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* as other entries might request placing other data objects inside
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* these memory regions (e.g. data/code segments, trace resource entries, ...).
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*
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* Allocating memory this way helps utilizing the reserved physical memory
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* (e.g. CMA) more efficiently, and also minimizes the number of TLB entries
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* needed to map it (in case @rproc is using an IOMMU). Reducing the TLB
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* pressure is important; it may have a substantial impact on performance.
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*
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* If the firmware is compiled with static addresses, then @da should specify
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* the expected device address of this memory region. If @da is set to
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* FW_RSC_ADDR_ANY, then the host will dynamically allocate it, and then
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* overwrite @da with the dynamically allocated address.
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*
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* We will always use @da to negotiate the device addresses, even if it
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* isn't using an iommu. In that case, though, it will obviously contain
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* physical addresses.
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*
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* Some remote processors needs to know the allocated physical address
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* even if they do use an iommu. This is needed, e.g., if they control
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* hardware accelerators which access the physical memory directly (this
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* is the case with OMAP4 for instance). In that case, the host will
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* overwrite @pa with the dynamically allocated physical address.
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* Generally we don't want to expose physical addresses if we don't have to
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* (remote processors are generally _not_ trusted), so we might want to
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* change this to happen _only_ when explicitly required by the hardware.
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*
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* @flags is used to provide IOMMU protection flags, and @name should
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* (optionally) contain a human readable name of this carveout region
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* (mainly for debugging purposes).
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*/
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struct fw_rsc_carveout {
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u32 da;
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u32 pa;
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u32 len;
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u32 flags;
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u32 reserved;
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u8 name[32];
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} __packed;
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/**
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* struct fw_rsc_devmem - iommu mapping request
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* @da: device address
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* @pa: physical address
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* @len: length (in bytes)
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* @flags: iommu protection flags
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* @reserved: reserved (must be zero)
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* @name: human-readable name of the requested region to be mapped
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*
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* This resource entry requests the host to iommu map a physically contiguous
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* memory region. This is needed in case the remote processor requires
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* access to certain memory-based peripherals; _never_ use it to access
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* regular memory.
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*
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* This is obviously only needed if the remote processor is accessing memory
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* via an iommu.
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*
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* @da should specify the required device address, @pa should specify
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* the physical address we want to map, @len should specify the size of
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* the mapping and @flags is the IOMMU protection flags. As always, @name may
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* (optionally) contain a human readable name of this mapping (mainly for
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* debugging purposes).
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*
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* Note: at this point we just "trust" those devmem entries to contain valid
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* physical addresses, but this isn't safe and will be changed: eventually we
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* want remoteproc implementations to provide us ranges of physical addresses
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* the firmware is allowed to request, and not allow firmwares to request
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* access to physical addresses that are outside those ranges.
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*/
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struct fw_rsc_devmem {
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u32 da;
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u32 pa;
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u32 len;
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u32 flags;
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u32 reserved;
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u8 name[32];
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} __packed;
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/**
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* struct fw_rsc_trace - trace buffer declaration
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* @da: device address
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* @len: length (in bytes)
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* @reserved: reserved (must be zero)
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* @name: human-readable name of the trace buffer
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*
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* This resource entry provides the host information about a trace buffer
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* into which the remote processor will write log messages.
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*
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* @da specifies the device address of the buffer, @len specifies
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* its size, and @name may contain a human readable name of the trace buffer.
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*
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* After booting the remote processor, the trace buffers are exposed to the
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* user via debugfs entries (called trace0, trace1, etc..).
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*/
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struct fw_rsc_trace {
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u32 da;
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u32 len;
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u32 reserved;
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u8 name[32];
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} __packed;
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/**
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* struct fw_rsc_vdev_vring - vring descriptor entry
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* @da: device address
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* @align: the alignment between the consumer and producer parts of the vring
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* @num: num of buffers supported by this vring (must be power of two)
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* @notifyid: a unique rproc-wide notify index for this vring. This notify
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* index is used when kicking a remote processor, to let it know that this
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* vring is triggered.
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* @pa: physical address
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*
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* This descriptor is not a resource entry by itself; it is part of the
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* vdev resource type (see below).
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*
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* Note that @da should either contain the device address where
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* the remote processor is expecting the vring, or indicate that
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* dynamically allocation of the vring's device address is supported.
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*/
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struct fw_rsc_vdev_vring {
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u32 da;
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u32 align;
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u32 num;
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u32 notifyid;
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u32 pa;
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} __packed;
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/**
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* struct fw_rsc_vdev - virtio device header
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* @id: virtio device id (as in virtio_ids.h)
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* @notifyid: a unique rproc-wide notify index for this vdev. This notify
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* index is used when kicking a remote processor, to let it know that the
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* status/features of this vdev have changes.
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* @dfeatures: specifies the virtio device features supported by the firmware
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* @gfeatures: a place holder used by the host to write back the
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* negotiated features that are supported by both sides.
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* @config_len: the size of the virtio config space of this vdev. The config
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* space lies in the resource table immediate after this vdev header.
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* @status: a place holder where the host will indicate its virtio progress.
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* @num_of_vrings: indicates how many vrings are described in this vdev header
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* @reserved: reserved (must be zero)
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* @vring: an array of @num_of_vrings entries of 'struct fw_rsc_vdev_vring'.
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*
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* This resource is a virtio device header: it provides information about
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* the vdev, and is then used by the host and its peer remote processors
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* to negotiate and share certain virtio properties.
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*
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* By providing this resource entry, the firmware essentially asks remoteproc
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* to statically allocate a vdev upon registration of the rproc (dynamic vdev
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* allocation is not yet supported).
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*
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* Note:
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* 1. unlike virtualization systems, the term 'host' here means
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* the Linux side which is running remoteproc to control the remote
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* processors. We use the name 'gfeatures' to comply with virtio's terms,
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* though there isn't really any virtualized guest OS here: it's the host
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* which is responsible for negotiating the final features.
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* Yeah, it's a bit confusing.
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*
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* 2. immediately following this structure is the virtio config space for
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* this vdev (which is specific to the vdev; for more info, read the virtio
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* spec). The size of the config space is specified by @config_len.
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*/
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struct fw_rsc_vdev {
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u32 id;
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u32 notifyid;
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u32 dfeatures;
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u32 gfeatures;
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u32 config_len;
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u8 status;
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u8 num_of_vrings;
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u8 reserved[2];
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struct fw_rsc_vdev_vring vring[];
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} __packed;
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struct rproc;
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/**
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* struct rproc_mem_entry - memory entry descriptor
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* @va: virtual address
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* @is_iomem: io memory
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* @dma: dma address
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* @len: length, in bytes
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* @da: device address
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* @release: release associated memory
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* @priv: associated data
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* @name: associated memory region name (optional)
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* @node: list node
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* @rsc_offset: offset in resource table
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* @flags: iommu protection flags
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* @of_resm_idx: reserved memory phandle index
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* @alloc: specific memory allocator function
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*/
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struct rproc_mem_entry {
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void *va;
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bool is_iomem;
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dma_addr_t dma;
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size_t len;
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u32 da;
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void *priv;
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char name[32];
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struct list_head node;
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u32 rsc_offset;
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u32 flags;
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u32 of_resm_idx;
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int (*alloc)(struct rproc *rproc, struct rproc_mem_entry *mem);
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int (*release)(struct rproc *rproc, struct rproc_mem_entry *mem);
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};
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struct firmware;
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/**
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* enum rsc_handling_status - return status of rproc_ops handle_rsc hook
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* @RSC_HANDLED: resource was handled
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* @RSC_IGNORED: resource was ignored
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*/
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enum rsc_handling_status {
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RSC_HANDLED = 0,
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RSC_IGNORED = 1,
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};
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/**
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* struct rproc_ops - platform-specific device handlers
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* @prepare: prepare device for code loading
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* @unprepare: unprepare device after stop
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* @start: power on the device and boot it
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* @stop: power off the device
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* @attach: attach to a device that his already powered up
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* @detach: detach from a device, leaving it powered up
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* @kick: kick a virtqueue (virtqueue id given as a parameter)
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* @da_to_va: optional platform hook to perform address translations
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* @parse_fw: parse firmware to extract information (e.g. resource table)
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* @handle_rsc: optional platform hook to handle vendor resources. Should return
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* RSC_HANDLED if resource was handled, RSC_IGNORED if not handled
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* and a negative value on error
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* @find_loaded_rsc_table: find the loaded resource table from firmware image
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* @get_loaded_rsc_table: get resource table installed in memory
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* by external entity
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* @load: load firmware to memory, where the remote processor
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* expects to find it
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* @sanity_check: sanity check the fw image
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* @get_boot_addr: get boot address to entry point specified in firmware
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* @panic: optional callback to react to system panic, core will delay
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* panic at least the returned number of milliseconds
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* @coredump: collect firmware dump after the subsystem is shutdown
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*/
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struct rproc_ops {
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int (*prepare)(struct rproc *rproc);
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int (*unprepare)(struct rproc *rproc);
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int (*start)(struct rproc *rproc);
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int (*stop)(struct rproc *rproc);
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int (*attach)(struct rproc *rproc);
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int (*detach)(struct rproc *rproc);
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void (*kick)(struct rproc *rproc, int vqid);
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void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
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int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
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int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
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int offset, int avail);
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struct resource_table *(*find_loaded_rsc_table)(
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struct rproc *rproc, const struct firmware *fw);
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struct resource_table *(*get_loaded_rsc_table)(
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struct rproc *rproc, size_t *size);
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int (*load)(struct rproc *rproc, const struct firmware *fw);
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int (*sanity_check)(struct rproc *rproc, const struct firmware *fw);
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u64 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw);
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unsigned long (*panic)(struct rproc *rproc);
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void (*coredump)(struct rproc *rproc);
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};
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/**
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* enum rproc_state - remote processor states
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* @RPROC_OFFLINE: device is powered off
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* @RPROC_SUSPENDED: device is suspended; needs to be woken up to receive
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* a message.
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* @RPROC_RUNNING: device is up and running
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* @RPROC_CRASHED: device has crashed; need to start recovery
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* @RPROC_DELETED: device is deleted
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* @RPROC_ATTACHED: device has been booted by another entity and the core
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* has attached to it
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* @RPROC_DETACHED: device has been booted by another entity and waiting
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* for the core to attach to it
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* @RPROC_LAST: just keep this one at the end
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*
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* Please note that the values of these states are used as indices
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* to rproc_state_string, a state-to-name lookup table,
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* so please keep the two synchronized. @RPROC_LAST is used to check
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* the validity of an index before the lookup table is accessed, so
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* please update it as needed too.
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*/
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enum rproc_state {
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RPROC_OFFLINE = 0,
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RPROC_SUSPENDED = 1,
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RPROC_RUNNING = 2,
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RPROC_CRASHED = 3,
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RPROC_DELETED = 4,
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RPROC_ATTACHED = 5,
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RPROC_DETACHED = 6,
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RPROC_LAST = 7,
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};
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/**
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* enum rproc_crash_type - remote processor crash types
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* @RPROC_MMUFAULT: iommu fault
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* @RPROC_WATCHDOG: watchdog bite
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* @RPROC_FATAL_ERROR: fatal error
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*
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* Each element of the enum is used as an array index. So that, the value of
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* the elements should be always something sane.
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*
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* Feel free to add more types when needed.
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*/
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enum rproc_crash_type {
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RPROC_MMUFAULT,
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RPROC_WATCHDOG,
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RPROC_FATAL_ERROR,
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};
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/**
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* enum rproc_dump_mechanism - Coredump options for core
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* @RPROC_COREDUMP_DISABLED: Don't perform any dump
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* @RPROC_COREDUMP_ENABLED: Copy dump to separate buffer and carry on with
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* recovery
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* @RPROC_COREDUMP_INLINE: Read segments directly from device memory. Stall
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* recovery until all segments are read
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*/
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enum rproc_dump_mechanism {
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RPROC_COREDUMP_DISABLED,
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RPROC_COREDUMP_ENABLED,
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RPROC_COREDUMP_INLINE,
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};
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/**
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* struct rproc_dump_segment - segment info from ELF header
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* @node: list node related to the rproc segment list
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* @da: device address of the segment
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* @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
|
|
* @offset: offset of the segment
|
|
*/
|
|
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;
|
|
};
|
|
|
|
/**
|
|
* enum rproc_features - features supported
|
|
*
|
|
* @RPROC_FEAT_ATTACH_ON_RECOVERY: The remote processor does not need help
|
|
* from Linux to recover, such as firmware
|
|
* loading. Linux just needs to attach after
|
|
* recovery.
|
|
*/
|
|
|
|
enum rproc_features {
|
|
RPROC_FEAT_ATTACH_ON_RECOVERY,
|
|
RPROC_MAX_FEATURES,
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @clean_table: copy of the resource table without modifications. Used
|
|
* when a remote processor is attached or detached from the core
|
|
* @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
|
|
* @sysfs_read_only: flag to make remoteproc sysfs files read only
|
|
* @dump_segments: list of segments in the firmware
|
|
* @nb_vdev: number of vdev currently handled by rproc
|
|
* @elf_class: firmware ELF class
|
|
* @elf_machine: firmware ELF machine
|
|
* @cdev: character device of the rproc
|
|
* @cdev_put_on_release: flag to indicate if remoteproc should be shutdown on @char_dev release
|
|
* @features: indicate remoteproc features
|
|
*/
|
|
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 *clean_table;
|
|
struct resource_table *cached_table;
|
|
size_t table_sz;
|
|
bool has_iommu;
|
|
bool auto_boot;
|
|
bool sysfs_read_only;
|
|
struct list_head dump_segments;
|
|
int nb_vdev;
|
|
u8 elf_class;
|
|
u16 elf_machine;
|
|
struct cdev cdev;
|
|
bool cdev_put_on_release;
|
|
DECLARE_BITMAP(features, RPROC_MAX_FEATURES);
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @num: vring size
|
|
* @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 num;
|
|
u32 da;
|
|
u32 align;
|
|
int notifyid;
|
|
struct rproc_vdev *rvdev;
|
|
struct virtqueue *vq;
|
|
};
|
|
|
|
/**
|
|
* struct rproc_vdev - remoteproc state for a supported virtio device
|
|
* @subdev: handle for registering the vdev as a rproc subdevice
|
|
* @pdev: remoteproc virtio platform device
|
|
* @id: virtio device id (as in virtio_ids.h)
|
|
* @node: list node
|
|
* @rproc: the rproc handle
|
|
* @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 rproc_subdev subdev;
|
|
struct platform_device *pdev;
|
|
|
|
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);
|
|
int rproc_shutdown(struct rproc *rproc);
|
|
int rproc_detach(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_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
|
|
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);
|
|
|
|
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 */
|