1 /* 1 /*
2 * Remote Processor Framework 2 * Remote Processor Framework
3 * 3 *
4 * Copyright(c) 2011 Texas Instruments, Inc. 4 * Copyright(c) 2011 Texas Instruments, Inc.
5 * Copyright(c) 2011 Google, Inc. 5 * Copyright(c) 2011 Google, Inc.
6 * All rights reserved. 6 * All rights reserved.
7 * 7 *
8 * Redistribution and use in source and binary 8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that t 9 * modification, are permitted provided that the following conditions
10 * are met: 10 * are met:
11 * 11 *
12 * * Redistributions of source code must retai 12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the f 13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must repro 14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the f 15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials 16 * the documentation and/or other materials provided with the
17 * distribution. 17 * distribution.
18 * * Neither the name Texas Instruments nor th 18 * * Neither the name Texas Instruments nor the names of its
19 * contributors may be used to endorse or pr 19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior 20 * from this software without specific prior written permission.
21 * 21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTI 23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCH 24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIR 26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGE 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, S 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE PO 32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */ 33 */
34 34
35 #ifndef REMOTEPROC_H 35 #ifndef REMOTEPROC_H
36 #define REMOTEPROC_H 36 #define REMOTEPROC_H
37 37
38 #include <linux/types.h> 38 #include <linux/types.h>
39 #include <linux/mutex.h> 39 #include <linux/mutex.h>
40 #include <linux/virtio.h> 40 #include <linux/virtio.h>
41 #include <linux/cdev.h> 41 #include <linux/cdev.h>
42 #include <linux/completion.h> 42 #include <linux/completion.h>
43 #include <linux/idr.h> 43 #include <linux/idr.h>
44 #include <linux/of.h> 44 #include <linux/of.h>
45 45
46 /** 46 /**
47 * struct resource_table - firmware resource t 47 * struct resource_table - firmware resource table header
48 * @ver: version number 48 * @ver: version number
49 * @num: number of resource entries 49 * @num: number of resource entries
50 * @reserved: reserved (must be zero) 50 * @reserved: reserved (must be zero)
51 * @offset: array of offsets pointing at the v 51 * @offset: array of offsets pointing at the various resource entries
52 * 52 *
53 * A resource table is essentially a list of s 53 * A resource table is essentially a list of system resources required
54 * by the remote processor. It may also includ 54 * by the remote processor. It may also include configuration entries.
55 * If needed, the remote processor firmware sh 55 * If needed, the remote processor firmware should contain this table
56 * as a dedicated ".resource_table" ELF sectio 56 * as a dedicated ".resource_table" ELF section.
57 * 57 *
58 * Some resources entries are mere announcemen 58 * Some resources entries are mere announcements, where the host is informed
59 * of specific remoteproc configuration. Other 59 * of specific remoteproc configuration. Other entries require the host to
60 * do something (e.g. allocate a system resour 60 * do something (e.g. allocate a system resource). Sometimes a negotiation
61 * is expected, where the firmware requests a 61 * is expected, where the firmware requests a resource, and once allocated,
62 * the host should provide back its details (e 62 * the host should provide back its details (e.g. address of an allocated
63 * memory region). 63 * memory region).
64 * 64 *
65 * The header of the resource table, as expres 65 * The header of the resource table, as expressed by this structure,
66 * contains a version number (should we need t 66 * contains a version number (should we need to change this format in the
67 * future), the number of available resource e 67 * future), the number of available resource entries, and their offsets
68 * in the table. 68 * in the table.
69 * 69 *
70 * Immediately following this header are the r 70 * Immediately following this header are the resource entries themselves,
71 * each of which begins with a resource entry 71 * each of which begins with a resource entry header (as described below).
72 */ 72 */
73 struct resource_table { 73 struct resource_table {
74 u32 ver; 74 u32 ver;
75 u32 num; 75 u32 num;
76 u32 reserved[2]; 76 u32 reserved[2];
77 u32 offset[]; 77 u32 offset[];
78 } __packed; 78 } __packed;
79 79
80 /** 80 /**
81 * struct fw_rsc_hdr - firmware resource entry 81 * struct fw_rsc_hdr - firmware resource entry header
82 * @type: resource type 82 * @type: resource type
83 * @data: resource data 83 * @data: resource data
84 * 84 *
85 * Every resource entry begins with a 'struct 85 * Every resource entry begins with a 'struct fw_rsc_hdr' header providing
86 * its @type. The content of the entry itself 86 * its @type. The content of the entry itself will immediately follow
87 * this header, and it should be parsed accord 87 * this header, and it should be parsed according to the resource type.
88 */ 88 */
89 struct fw_rsc_hdr { 89 struct fw_rsc_hdr {
90 u32 type; 90 u32 type;
91 u8 data[]; 91 u8 data[];
92 } __packed; 92 } __packed;
93 93
94 /** 94 /**
95 * enum fw_resource_type - types of resource e 95 * enum fw_resource_type - types of resource entries
96 * 96 *
97 * @RSC_CARVEOUT: request for allocation of 97 * @RSC_CARVEOUT: request for allocation of a physically contiguous
98 * memory region. 98 * memory region.
99 * @RSC_DEVMEM: request to iommu_map a mem 99 * @RSC_DEVMEM: request to iommu_map a memory-based peripheral.
100 * @RSC_TRACE: announces the availability 100 * @RSC_TRACE: announces the availability of a trace buffer into which
101 * the remote processor will 101 * the remote processor will be writing logs.
102 * @RSC_VDEV: declare support for a virt 102 * @RSC_VDEV: declare support for a virtio device, and serve as its
103 * virtio header. 103 * virtio header.
104 * @RSC_LAST: just keep this one at the 104 * @RSC_LAST: just keep this one at the end of standard resources
105 * @RSC_VENDOR_START: start of the vendor sp 105 * @RSC_VENDOR_START: start of the vendor specific resource types range
106 * @RSC_VENDOR_END: end of the vendor spec 106 * @RSC_VENDOR_END: end of the vendor specific resource types range
107 * 107 *
108 * For more details regarding a specific resou 108 * For more details regarding a specific resource type, please see its
109 * dedicated structure below. 109 * dedicated structure below.
110 * 110 *
111 * Please note that these values are used as i 111 * Please note that these values are used as indices to the rproc_handle_rsc
112 * lookup table, so please keep them sane. Mor 112 * lookup table, so please keep them sane. Moreover, @RSC_LAST is used to
113 * check the validity of an index before the l 113 * check the validity of an index before the lookup table is accessed, so
114 * please update it as needed. 114 * please update it as needed.
115 */ 115 */
116 enum fw_resource_type { 116 enum fw_resource_type {
117 RSC_CARVEOUT = 0, 117 RSC_CARVEOUT = 0,
118 RSC_DEVMEM = 1, 118 RSC_DEVMEM = 1,
119 RSC_TRACE = 2, 119 RSC_TRACE = 2,
120 RSC_VDEV = 3, 120 RSC_VDEV = 3,
121 RSC_LAST = 4, 121 RSC_LAST = 4,
122 RSC_VENDOR_START = 128, 122 RSC_VENDOR_START = 128,
123 RSC_VENDOR_END = 512, 123 RSC_VENDOR_END = 512,
124 }; 124 };
125 125
126 #define FW_RSC_ADDR_ANY (-1) 126 #define FW_RSC_ADDR_ANY (-1)
127 127
128 /** 128 /**
129 * struct fw_rsc_carveout - physically contigu 129 * struct fw_rsc_carveout - physically contiguous memory request
130 * @da: device address 130 * @da: device address
131 * @pa: physical address 131 * @pa: physical address
132 * @len: length (in bytes) 132 * @len: length (in bytes)
133 * @flags: iommu protection flags 133 * @flags: iommu protection flags
134 * @reserved: reserved (must be zero) 134 * @reserved: reserved (must be zero)
135 * @name: human-readable name of the requested 135 * @name: human-readable name of the requested memory region
136 * 136 *
137 * This resource entry requests the host to al 137 * This resource entry requests the host to allocate a physically contiguous
138 * memory region. 138 * memory region.
139 * 139 *
140 * These request entries should precede other 140 * These request entries should precede other firmware resource entries,
141 * as other entries might request placing othe 141 * as other entries might request placing other data objects inside
142 * these memory regions (e.g. data/code segmen 142 * these memory regions (e.g. data/code segments, trace resource entries, ...).
143 * 143 *
144 * Allocating memory this way helps utilizing 144 * Allocating memory this way helps utilizing the reserved physical memory
145 * (e.g. CMA) more efficiently, and also minim 145 * (e.g. CMA) more efficiently, and also minimizes the number of TLB entries
146 * needed to map it (in case @rproc is using a 146 * needed to map it (in case @rproc is using an IOMMU). Reducing the TLB
147 * pressure is important; it may have a substa 147 * pressure is important; it may have a substantial impact on performance.
148 * 148 *
149 * If the firmware is compiled with static add 149 * If the firmware is compiled with static addresses, then @da should specify
150 * the expected device address of this memory 150 * the expected device address of this memory region. If @da is set to
151 * FW_RSC_ADDR_ANY, then the host will dynamic 151 * FW_RSC_ADDR_ANY, then the host will dynamically allocate it, and then
152 * overwrite @da with the dynamically allocate 152 * overwrite @da with the dynamically allocated address.
153 * 153 *
154 * We will always use @da to negotiate the dev 154 * We will always use @da to negotiate the device addresses, even if it
155 * isn't using an iommu. In that case, though, 155 * isn't using an iommu. In that case, though, it will obviously contain
156 * physical addresses. 156 * physical addresses.
157 * 157 *
158 * Some remote processors needs to know the al 158 * Some remote processors needs to know the allocated physical address
159 * even if they do use an iommu. This is neede 159 * even if they do use an iommu. This is needed, e.g., if they control
160 * hardware accelerators which access the phys 160 * hardware accelerators which access the physical memory directly (this
161 * is the case with OMAP4 for instance). In th 161 * is the case with OMAP4 for instance). In that case, the host will
162 * overwrite @pa with the dynamically allocate 162 * overwrite @pa with the dynamically allocated physical address.
163 * Generally we don't want to expose physical 163 * Generally we don't want to expose physical addresses if we don't have to
164 * (remote processors are generally _not_ trus 164 * (remote processors are generally _not_ trusted), so we might want to
165 * change this to happen _only_ when explicitl 165 * change this to happen _only_ when explicitly required by the hardware.
166 * 166 *
167 * @flags is used to provide IOMMU protection 167 * @flags is used to provide IOMMU protection flags, and @name should
168 * (optionally) contain a human readable name 168 * (optionally) contain a human readable name of this carveout region
169 * (mainly for debugging purposes). 169 * (mainly for debugging purposes).
170 */ 170 */
171 struct fw_rsc_carveout { 171 struct fw_rsc_carveout {
172 u32 da; 172 u32 da;
173 u32 pa; 173 u32 pa;
174 u32 len; 174 u32 len;
175 u32 flags; 175 u32 flags;
176 u32 reserved; 176 u32 reserved;
177 u8 name[32]; 177 u8 name[32];
178 } __packed; 178 } __packed;
179 179
180 /** 180 /**
181 * struct fw_rsc_devmem - iommu mapping reques 181 * struct fw_rsc_devmem - iommu mapping request
182 * @da: device address 182 * @da: device address
183 * @pa: physical address 183 * @pa: physical address
184 * @len: length (in bytes) 184 * @len: length (in bytes)
185 * @flags: iommu protection flags 185 * @flags: iommu protection flags
186 * @reserved: reserved (must be zero) 186 * @reserved: reserved (must be zero)
187 * @name: human-readable name of the requested 187 * @name: human-readable name of the requested region to be mapped
188 * 188 *
189 * This resource entry requests the host to io 189 * This resource entry requests the host to iommu map a physically contiguous
190 * memory region. This is needed in case the r 190 * memory region. This is needed in case the remote processor requires
191 * access to certain memory-based peripherals; 191 * access to certain memory-based peripherals; _never_ use it to access
192 * regular memory. 192 * regular memory.
193 * 193 *
194 * This is obviously only needed if the remote 194 * This is obviously only needed if the remote processor is accessing memory
195 * via an iommu. 195 * via an iommu.
196 * 196 *
197 * @da should specify the required device addr 197 * @da should specify the required device address, @pa should specify
198 * the physical address we want to map, @len s 198 * the physical address we want to map, @len should specify the size of
199 * the mapping and @flags is the IOMMU protect 199 * the mapping and @flags is the IOMMU protection flags. As always, @name may
200 * (optionally) contain a human readable name 200 * (optionally) contain a human readable name of this mapping (mainly for
201 * debugging purposes). 201 * debugging purposes).
202 * 202 *
203 * Note: at this point we just "trust" those d 203 * Note: at this point we just "trust" those devmem entries to contain valid
204 * physical addresses, but this isn't safe and 204 * physical addresses, but this isn't safe and will be changed: eventually we
205 * want remoteproc implementations to provide 205 * want remoteproc implementations to provide us ranges of physical addresses
206 * the firmware is allowed to request, and not 206 * the firmware is allowed to request, and not allow firmwares to request
207 * access to physical addresses that are outsi 207 * access to physical addresses that are outside those ranges.
208 */ 208 */
209 struct fw_rsc_devmem { 209 struct fw_rsc_devmem {
210 u32 da; 210 u32 da;
211 u32 pa; 211 u32 pa;
212 u32 len; 212 u32 len;
213 u32 flags; 213 u32 flags;
214 u32 reserved; 214 u32 reserved;
215 u8 name[32]; 215 u8 name[32];
216 } __packed; 216 } __packed;
217 217
218 /** 218 /**
219 * struct fw_rsc_trace - trace buffer declarat 219 * struct fw_rsc_trace - trace buffer declaration
220 * @da: device address 220 * @da: device address
221 * @len: length (in bytes) 221 * @len: length (in bytes)
222 * @reserved: reserved (must be zero) 222 * @reserved: reserved (must be zero)
223 * @name: human-readable name of the trace buf 223 * @name: human-readable name of the trace buffer
224 * 224 *
225 * This resource entry provides the host infor 225 * This resource entry provides the host information about a trace buffer
226 * into which the remote processor will write 226 * into which the remote processor will write log messages.
227 * 227 *
228 * @da specifies the device address of the buf 228 * @da specifies the device address of the buffer, @len specifies
229 * its size, and @name may contain a human rea 229 * its size, and @name may contain a human readable name of the trace buffer.
230 * 230 *
231 * After booting the remote processor, the tra 231 * After booting the remote processor, the trace buffers are exposed to the
232 * user via debugfs entries (called trace0, tr 232 * user via debugfs entries (called trace0, trace1, etc..).
233 */ 233 */
234 struct fw_rsc_trace { 234 struct fw_rsc_trace {
235 u32 da; 235 u32 da;
236 u32 len; 236 u32 len;
237 u32 reserved; 237 u32 reserved;
238 u8 name[32]; 238 u8 name[32];
239 } __packed; 239 } __packed;
240 240
241 /** 241 /**
242 * struct fw_rsc_vdev_vring - vring descriptor 242 * struct fw_rsc_vdev_vring - vring descriptor entry
243 * @da: device address 243 * @da: device address
244 * @align: the alignment between the consumer 244 * @align: the alignment between the consumer and producer parts of the vring
245 * @num: num of buffers supported by this vrin 245 * @num: num of buffers supported by this vring (must be power of two)
246 * @notifyid: a unique rproc-wide notify index 246 * @notifyid: a unique rproc-wide notify index for this vring. This notify
247 * index is used when kicking a remote process 247 * index is used when kicking a remote processor, to let it know that this
248 * vring is triggered. 248 * vring is triggered.
249 * @pa: physical address 249 * @pa: physical address
250 * 250 *
251 * This descriptor is not a resource entry by 251 * This descriptor is not a resource entry by itself; it is part of the
252 * vdev resource type (see below). 252 * vdev resource type (see below).
253 * 253 *
254 * Note that @da should either contain the dev 254 * Note that @da should either contain the device address where
255 * the remote processor is expecting the vring 255 * the remote processor is expecting the vring, or indicate that
256 * dynamically allocation of the vring's devic 256 * dynamically allocation of the vring's device address is supported.
257 */ 257 */
258 struct fw_rsc_vdev_vring { 258 struct fw_rsc_vdev_vring {
259 u32 da; 259 u32 da;
260 u32 align; 260 u32 align;
261 u32 num; 261 u32 num;
262 u32 notifyid; 262 u32 notifyid;
263 u32 pa; 263 u32 pa;
264 } __packed; 264 } __packed;
265 265
266 /** 266 /**
267 * struct fw_rsc_vdev - virtio device header 267 * struct fw_rsc_vdev - virtio device header
268 * @id: virtio device id (as in virtio_ids.h) 268 * @id: virtio device id (as in virtio_ids.h)
269 * @notifyid: a unique rproc-wide notify index 269 * @notifyid: a unique rproc-wide notify index for this vdev. This notify
270 * index is used when kicking a remote process 270 * index is used when kicking a remote processor, to let it know that the
271 * status/features of this vdev have changes. 271 * status/features of this vdev have changes.
272 * @dfeatures: specifies the virtio device fea 272 * @dfeatures: specifies the virtio device features supported by the firmware
273 * @gfeatures: a place holder used by the host 273 * @gfeatures: a place holder used by the host to write back the
274 * negotiated features that are supported by b 274 * negotiated features that are supported by both sides.
275 * @config_len: the size of the virtio config 275 * @config_len: the size of the virtio config space of this vdev. The config
276 * space lies in the resource table immediate 276 * space lies in the resource table immediate after this vdev header.
277 * @status: a place holder where the host will 277 * @status: a place holder where the host will indicate its virtio progress.
278 * @num_of_vrings: indicates how many vrings a 278 * @num_of_vrings: indicates how many vrings are described in this vdev header
279 * @reserved: reserved (must be zero) 279 * @reserved: reserved (must be zero)
280 * @vring: an array of @num_of_vrings entries 280 * @vring: an array of @num_of_vrings entries of 'struct fw_rsc_vdev_vring'.
281 * 281 *
282 * This resource is a virtio device header: it 282 * This resource is a virtio device header: it provides information about
283 * the vdev, and is then used by the host and 283 * the vdev, and is then used by the host and its peer remote processors
284 * to negotiate and share certain virtio prope 284 * to negotiate and share certain virtio properties.
285 * 285 *
286 * By providing this resource entry, the firmw 286 * By providing this resource entry, the firmware essentially asks remoteproc
287 * to statically allocate a vdev upon registra 287 * to statically allocate a vdev upon registration of the rproc (dynamic vdev
288 * allocation is not yet supported). 288 * allocation is not yet supported).
289 * 289 *
290 * Note: 290 * Note:
291 * 1. unlike virtualization systems, the term 291 * 1. unlike virtualization systems, the term 'host' here means
292 * the Linux side which is running remotepr 292 * the Linux side which is running remoteproc to control the remote
293 * processors. We use the name 'gfeatures' 293 * processors. We use the name 'gfeatures' to comply with virtio's terms,
294 * though there isn't really any virtualize 294 * though there isn't really any virtualized guest OS here: it's the host
295 * which is responsible for negotiating the 295 * which is responsible for negotiating the final features.
296 * Yeah, it's a bit confusing. 296 * Yeah, it's a bit confusing.
297 * 297 *
298 * 2. immediately following this structure is 298 * 2. immediately following this structure is the virtio config space for
299 * this vdev (which is specific to the vdev 299 * this vdev (which is specific to the vdev; for more info, read the virtio
300 * spec). The size of the config space is s 300 * spec). The size of the config space is specified by @config_len.
301 */ 301 */
302 struct fw_rsc_vdev { 302 struct fw_rsc_vdev {
303 u32 id; 303 u32 id;
304 u32 notifyid; 304 u32 notifyid;
305 u32 dfeatures; 305 u32 dfeatures;
306 u32 gfeatures; 306 u32 gfeatures;
307 u32 config_len; 307 u32 config_len;
308 u8 status; 308 u8 status;
309 u8 num_of_vrings; 309 u8 num_of_vrings;
310 u8 reserved[2]; 310 u8 reserved[2];
311 struct fw_rsc_vdev_vring vring[]; 311 struct fw_rsc_vdev_vring vring[];
312 } __packed; 312 } __packed;
313 313
314 struct rproc; 314 struct rproc;
315 315
316 /** 316 /**
317 * struct rproc_mem_entry - memory entry descr 317 * struct rproc_mem_entry - memory entry descriptor
318 * @va: virtual address 318 * @va: virtual address
319 * @is_iomem: io memory 319 * @is_iomem: io memory
320 * @dma: dma address 320 * @dma: dma address
321 * @len: length, in bytes 321 * @len: length, in bytes
322 * @da: device address 322 * @da: device address
323 * @release: release associated memory 323 * @release: release associated memory
324 * @priv: associated data 324 * @priv: associated data
325 * @name: associated memory region name (optio 325 * @name: associated memory region name (optional)
326 * @node: list node 326 * @node: list node
327 * @rsc_offset: offset in resource table 327 * @rsc_offset: offset in resource table
328 * @flags: iommu protection flags 328 * @flags: iommu protection flags
329 * @of_resm_idx: reserved memory phandle index 329 * @of_resm_idx: reserved memory phandle index
330 * @alloc: specific memory allocator function 330 * @alloc: specific memory allocator function
331 */ 331 */
332 struct rproc_mem_entry { 332 struct rproc_mem_entry {
333 void *va; 333 void *va;
334 bool is_iomem; 334 bool is_iomem;
335 dma_addr_t dma; 335 dma_addr_t dma;
336 size_t len; 336 size_t len;
337 u32 da; 337 u32 da;
338 void *priv; 338 void *priv;
339 char name[32]; 339 char name[32];
340 struct list_head node; 340 struct list_head node;
341 u32 rsc_offset; 341 u32 rsc_offset;
342 u32 flags; 342 u32 flags;
343 u32 of_resm_idx; 343 u32 of_resm_idx;
344 int (*alloc)(struct rproc *rproc, stru 344 int (*alloc)(struct rproc *rproc, struct rproc_mem_entry *mem);
345 int (*release)(struct rproc *rproc, st 345 int (*release)(struct rproc *rproc, struct rproc_mem_entry *mem);
346 }; 346 };
347 347
348 struct firmware; 348 struct firmware;
349 349
350 /** 350 /**
351 * enum rsc_handling_status - return status of 351 * enum rsc_handling_status - return status of rproc_ops handle_rsc hook
352 * @RSC_HANDLED: resource was handled 352 * @RSC_HANDLED: resource was handled
353 * @RSC_IGNORED: resource was ignored 353 * @RSC_IGNORED: resource was ignored
354 */ 354 */
355 enum rsc_handling_status { 355 enum rsc_handling_status {
356 RSC_HANDLED = 0, 356 RSC_HANDLED = 0,
357 RSC_IGNORED = 1, 357 RSC_IGNORED = 1,
358 }; 358 };
359 359
360 /** 360 /**
361 * struct rproc_ops - platform-specific device 361 * struct rproc_ops - platform-specific device handlers
362 * @prepare: prepare device for code loadin 362 * @prepare: prepare device for code loading
363 * @unprepare: unprepare device after stop 363 * @unprepare: unprepare device after stop
364 * @start: power on the device and boot i 364 * @start: power on the device and boot it
365 * @stop: power off the device 365 * @stop: power off the device
366 * @attach: attach to a device that his al 366 * @attach: attach to a device that his already powered up
367 * @detach: detach from a device, leaving 367 * @detach: detach from a device, leaving it powered up
368 * @kick: kick a virtqueue (virtqueue id 368 * @kick: kick a virtqueue (virtqueue id given as a parameter)
369 * @da_to_va: optional platform hook to perf 369 * @da_to_va: optional platform hook to perform address translations
370 * @parse_fw: parse firmware to extract info 370 * @parse_fw: parse firmware to extract information (e.g. resource table)
371 * @handle_rsc: optional platform hook to hand 371 * @handle_rsc: optional platform hook to handle vendor resources. Should return
372 * RSC_HANDLED if resource was ha 372 * RSC_HANDLED if resource was handled, RSC_IGNORED if not handled
373 * and a negative value on error 373 * and a negative value on error
374 * @find_loaded_rsc_table: find the loaded res 374 * @find_loaded_rsc_table: find the loaded resource table from firmware image
375 * @get_loaded_rsc_table: get resource table i 375 * @get_loaded_rsc_table: get resource table installed in memory
376 * by external entity 376 * by external entity
377 * @load: load firmware to memor 377 * @load: load firmware to memory, where the remote processor
378 * expects to find it 378 * expects to find it
379 * @sanity_check: sanity check the fw im 379 * @sanity_check: sanity check the fw image
380 * @get_boot_addr: get boot address to en 380 * @get_boot_addr: get boot address to entry point specified in firmware
381 * @panic: optional callback to react to 381 * @panic: optional callback to react to system panic, core will delay
382 * panic at least the returned nu 382 * panic at least the returned number of milliseconds
383 * @coredump: collect firmware dump after 383 * @coredump: collect firmware dump after the subsystem is shutdown
384 */ 384 */
385 struct rproc_ops { 385 struct rproc_ops {
386 int (*prepare)(struct rproc *rproc); 386 int (*prepare)(struct rproc *rproc);
387 int (*unprepare)(struct rproc *rproc); 387 int (*unprepare)(struct rproc *rproc);
388 int (*start)(struct rproc *rproc); 388 int (*start)(struct rproc *rproc);
389 int (*stop)(struct rproc *rproc); 389 int (*stop)(struct rproc *rproc);
390 int (*attach)(struct rproc *rproc); 390 int (*attach)(struct rproc *rproc);
391 int (*detach)(struct rproc *rproc); 391 int (*detach)(struct rproc *rproc);
392 void (*kick)(struct rproc *rproc, int 392 void (*kick)(struct rproc *rproc, int vqid);
393 void * (*da_to_va)(struct rproc *rproc 393 void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
394 int (*parse_fw)(struct rproc *rproc, c 394 int (*parse_fw)(struct rproc *rproc, const struct firmware *fw);
395 int (*handle_rsc)(struct rproc *rproc, 395 int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc,
396 int offset, int avai 396 int offset, int avail);
397 struct resource_table *(*find_loaded_r 397 struct resource_table *(*find_loaded_rsc_table)(
398 struct rproc * 398 struct rproc *rproc, const struct firmware *fw);
399 struct resource_table *(*get_loaded_rs 399 struct resource_table *(*get_loaded_rsc_table)(
400 struct rproc * 400 struct rproc *rproc, size_t *size);
401 int (*load)(struct rproc *rproc, const 401 int (*load)(struct rproc *rproc, const struct firmware *fw);
402 int (*sanity_check)(struct rproc *rpro 402 int (*sanity_check)(struct rproc *rproc, const struct firmware *fw);
403 u64 (*get_boot_addr)(struct rproc *rpr 403 u64 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw);
404 unsigned long (*panic)(struct rproc *r 404 unsigned long (*panic)(struct rproc *rproc);
405 void (*coredump)(struct rproc *rproc); 405 void (*coredump)(struct rproc *rproc);
406 }; 406 };
407 407
408 /** 408 /**
409 * enum rproc_state - remote processor states 409 * enum rproc_state - remote processor states
410 * @RPROC_OFFLINE: device is powered off 410 * @RPROC_OFFLINE: device is powered off
411 * @RPROC_SUSPENDED: device is suspended; n 411 * @RPROC_SUSPENDED: device is suspended; needs to be woken up to receive
412 * a message. 412 * a message.
413 * @RPROC_RUNNING: device is up and runni 413 * @RPROC_RUNNING: device is up and running
414 * @RPROC_CRASHED: device has crashed; ne 414 * @RPROC_CRASHED: device has crashed; need to start recovery
415 * @RPROC_DELETED: device is deleted 415 * @RPROC_DELETED: device is deleted
416 * @RPROC_ATTACHED: device has been booted 416 * @RPROC_ATTACHED: device has been booted by another entity and the core
417 * has attached to it 417 * has attached to it
418 * @RPROC_DETACHED: device has been booted 418 * @RPROC_DETACHED: device has been booted by another entity and waiting
419 * for the core to attach 419 * for the core to attach to it
420 * @RPROC_LAST: just keep this one at 420 * @RPROC_LAST: just keep this one at the end
421 * 421 *
422 * Please note that the values of these states 422 * Please note that the values of these states are used as indices
423 * to rproc_state_string, a state-to-name look 423 * to rproc_state_string, a state-to-name lookup table,
424 * so please keep the two synchronized. @RPROC 424 * so please keep the two synchronized. @RPROC_LAST is used to check
425 * the validity of an index before the lookup 425 * the validity of an index before the lookup table is accessed, so
426 * please update it as needed too. 426 * please update it as needed too.
427 */ 427 */
428 enum rproc_state { 428 enum rproc_state {
429 RPROC_OFFLINE = 0, 429 RPROC_OFFLINE = 0,
430 RPROC_SUSPENDED = 1, 430 RPROC_SUSPENDED = 1,
431 RPROC_RUNNING = 2, 431 RPROC_RUNNING = 2,
432 RPROC_CRASHED = 3, 432 RPROC_CRASHED = 3,
433 RPROC_DELETED = 4, 433 RPROC_DELETED = 4,
434 RPROC_ATTACHED = 5, 434 RPROC_ATTACHED = 5,
435 RPROC_DETACHED = 6, 435 RPROC_DETACHED = 6,
436 RPROC_LAST = 7, 436 RPROC_LAST = 7,
437 }; 437 };
438 438
439 /** 439 /**
440 * enum rproc_crash_type - remote processor cr 440 * enum rproc_crash_type - remote processor crash types
441 * @RPROC_MMUFAULT: iommu fault 441 * @RPROC_MMUFAULT: iommu fault
442 * @RPROC_WATCHDOG: watchdog bite 442 * @RPROC_WATCHDOG: watchdog bite
443 * @RPROC_FATAL_ERROR: fatal error 443 * @RPROC_FATAL_ERROR: fatal error
444 * 444 *
445 * Each element of the enum is used as an arra 445 * Each element of the enum is used as an array index. So that, the value of
446 * the elements should be always something san 446 * the elements should be always something sane.
447 * 447 *
448 * Feel free to add more types when needed. 448 * Feel free to add more types when needed.
449 */ 449 */
450 enum rproc_crash_type { 450 enum rproc_crash_type {
451 RPROC_MMUFAULT, 451 RPROC_MMUFAULT,
452 RPROC_WATCHDOG, 452 RPROC_WATCHDOG,
453 RPROC_FATAL_ERROR, 453 RPROC_FATAL_ERROR,
454 }; 454 };
455 455
456 /** 456 /**
457 * enum rproc_dump_mechanism - Coredump option 457 * enum rproc_dump_mechanism - Coredump options for core
458 * @RPROC_COREDUMP_DISABLED: Don't perform 458 * @RPROC_COREDUMP_DISABLED: Don't perform any dump
459 * @RPROC_COREDUMP_ENABLED: Copy dump to s 459 * @RPROC_COREDUMP_ENABLED: Copy dump to separate buffer and carry on with
460 * recovery 460 * recovery
461 * @RPROC_COREDUMP_INLINE: Read segments 461 * @RPROC_COREDUMP_INLINE: Read segments directly from device memory. Stall
462 * recovery until 462 * recovery until all segments are read
463 */ 463 */
464 enum rproc_dump_mechanism { 464 enum rproc_dump_mechanism {
465 RPROC_COREDUMP_DISABLED, 465 RPROC_COREDUMP_DISABLED,
466 RPROC_COREDUMP_ENABLED, 466 RPROC_COREDUMP_ENABLED,
467 RPROC_COREDUMP_INLINE, 467 RPROC_COREDUMP_INLINE,
468 }; 468 };
469 469
470 /** 470 /**
471 * struct rproc_dump_segment - segment info fr 471 * struct rproc_dump_segment - segment info from ELF header
472 * @node: list node related to the rproc 472 * @node: list node related to the rproc segment list
473 * @da: device address of the segment 473 * @da: device address of the segment
474 * @size: size of the segment 474 * @size: size of the segment
475 * @priv: private data associated with t 475 * @priv: private data associated with the dump_segment
476 * @dump: custom dump function to fill d 476 * @dump: custom dump function to fill device memory segment associated
477 * with coredump 477 * with coredump
478 * @offset: offset of the segment 478 * @offset: offset of the segment
479 */ 479 */
480 struct rproc_dump_segment { 480 struct rproc_dump_segment {
481 struct list_head node; 481 struct list_head node;
482 482
483 dma_addr_t da; 483 dma_addr_t da;
484 size_t size; 484 size_t size;
485 485
486 void *priv; 486 void *priv;
487 void (*dump)(struct rproc *rproc, stru 487 void (*dump)(struct rproc *rproc, struct rproc_dump_segment *segment,
488 void *dest, size_t offset 488 void *dest, size_t offset, size_t size);
489 loff_t offset; 489 loff_t offset;
490 }; 490 };
491 491
492 /** 492 /**
493 * enum rproc_features - features supported 493 * enum rproc_features - features supported
494 * 494 *
495 * @RPROC_FEAT_ATTACH_ON_RECOVERY: The remote 495 * @RPROC_FEAT_ATTACH_ON_RECOVERY: The remote processor does not need help
496 * from Linux 496 * from Linux to recover, such as firmware
497 * loading. Li 497 * loading. Linux just needs to attach after
498 * recovery. 498 * recovery.
499 */ 499 */
500 500
501 enum rproc_features { 501 enum rproc_features {
502 RPROC_FEAT_ATTACH_ON_RECOVERY, 502 RPROC_FEAT_ATTACH_ON_RECOVERY,
503 RPROC_MAX_FEATURES, 503 RPROC_MAX_FEATURES,
504 }; 504 };
505 505
506 /** 506 /**
507 * struct rproc - represents a physical remote 507 * struct rproc - represents a physical remote processor device
508 * @node: list node of this rproc object 508 * @node: list node of this rproc object
509 * @domain: iommu domain 509 * @domain: iommu domain
510 * @name: human readable name of the rproc 510 * @name: human readable name of the rproc
511 * @firmware: name of firmware file to be load 511 * @firmware: name of firmware file to be loaded
512 * @priv: private data which belongs to the pl 512 * @priv: private data which belongs to the platform-specific rproc module
513 * @ops: platform-specific start/stop rproc ha 513 * @ops: platform-specific start/stop rproc handlers
514 * @dev: virtual device for refcounting and co 514 * @dev: virtual device for refcounting and common remoteproc behavior
515 * @power: refcount of users who need this rpr 515 * @power: refcount of users who need this rproc powered up
516 * @state: state of the device 516 * @state: state of the device
517 * @dump_conf: Currently selected coredump con 517 * @dump_conf: Currently selected coredump configuration
518 * @lock: lock which protects concurrent manip 518 * @lock: lock which protects concurrent manipulations of the rproc
519 * @dbg_dir: debugfs directory of this rproc d 519 * @dbg_dir: debugfs directory of this rproc device
520 * @traces: list of trace buffers 520 * @traces: list of trace buffers
521 * @num_traces: number of trace buffers 521 * @num_traces: number of trace buffers
522 * @carveouts: list of physically contiguous m 522 * @carveouts: list of physically contiguous memory allocations
523 * @mappings: list of iommu mappings we initia 523 * @mappings: list of iommu mappings we initiated, needed on shutdown
524 * @bootaddr: address of first instruction to 524 * @bootaddr: address of first instruction to boot rproc with (optional)
525 * @rvdevs: list of remote virtio devices 525 * @rvdevs: list of remote virtio devices
526 * @subdevs: list of subdevices, to following 526 * @subdevs: list of subdevices, to following the running state
527 * @notifyids: idr for dynamically assigning r 527 * @notifyids: idr for dynamically assigning rproc-wide unique notify ids
528 * @index: index of this rproc device 528 * @index: index of this rproc device
529 * @crash_handler: workqueue for handling a cr 529 * @crash_handler: workqueue for handling a crash
530 * @crash_cnt: crash counter 530 * @crash_cnt: crash counter
531 * @recovery_disabled: flag that state if reco 531 * @recovery_disabled: flag that state if recovery was disabled
532 * @max_notifyid: largest allocated notify id. 532 * @max_notifyid: largest allocated notify id.
533 * @table_ptr: pointer to the resource table i 533 * @table_ptr: pointer to the resource table in effect
534 * @clean_table: copy of the resource table wi 534 * @clean_table: copy of the resource table without modifications. Used
535 * when a remote processor is at 535 * when a remote processor is attached or detached from the core
536 * @cached_table: copy of the resource table 536 * @cached_table: copy of the resource table
537 * @table_sz: size of @cached_table 537 * @table_sz: size of @cached_table
538 * @has_iommu: flag to indicate if remote proc 538 * @has_iommu: flag to indicate if remote processor is behind an MMU
539 * @auto_boot: flag to indicate if remote proc 539 * @auto_boot: flag to indicate if remote processor should be auto-started
540 * @sysfs_read_only: flag to make remoteproc s 540 * @sysfs_read_only: flag to make remoteproc sysfs files read only
541 * @dump_segments: list of segments in the fir 541 * @dump_segments: list of segments in the firmware
542 * @nb_vdev: number of vdev currently handled 542 * @nb_vdev: number of vdev currently handled by rproc
543 * @elf_class: firmware ELF class 543 * @elf_class: firmware ELF class
544 * @elf_machine: firmware ELF machine 544 * @elf_machine: firmware ELF machine
545 * @cdev: character device of the rproc 545 * @cdev: character device of the rproc
546 * @cdev_put_on_release: flag to indicate if r 546 * @cdev_put_on_release: flag to indicate if remoteproc should be shutdown on @char_dev release
547 * @features: indicate remoteproc features 547 * @features: indicate remoteproc features
548 */ 548 */
549 struct rproc { 549 struct rproc {
550 struct list_head node; 550 struct list_head node;
551 struct iommu_domain *domain; 551 struct iommu_domain *domain;
552 const char *name; 552 const char *name;
553 const char *firmware; 553 const char *firmware;
554 void *priv; 554 void *priv;
555 struct rproc_ops *ops; 555 struct rproc_ops *ops;
556 struct device dev; 556 struct device dev;
557 atomic_t power; 557 atomic_t power;
558 unsigned int state; 558 unsigned int state;
559 enum rproc_dump_mechanism dump_conf; 559 enum rproc_dump_mechanism dump_conf;
560 struct mutex lock; 560 struct mutex lock;
561 struct dentry *dbg_dir; 561 struct dentry *dbg_dir;
562 struct list_head traces; 562 struct list_head traces;
563 int num_traces; 563 int num_traces;
564 struct list_head carveouts; 564 struct list_head carveouts;
565 struct list_head mappings; 565 struct list_head mappings;
566 u64 bootaddr; 566 u64 bootaddr;
567 struct list_head rvdevs; 567 struct list_head rvdevs;
568 struct list_head subdevs; 568 struct list_head subdevs;
569 struct idr notifyids; 569 struct idr notifyids;
570 int index; 570 int index;
571 struct work_struct crash_handler; 571 struct work_struct crash_handler;
572 unsigned int crash_cnt; 572 unsigned int crash_cnt;
573 bool recovery_disabled; 573 bool recovery_disabled;
574 int max_notifyid; 574 int max_notifyid;
575 struct resource_table *table_ptr; 575 struct resource_table *table_ptr;
576 struct resource_table *clean_table; 576 struct resource_table *clean_table;
577 struct resource_table *cached_table; 577 struct resource_table *cached_table;
578 size_t table_sz; 578 size_t table_sz;
579 bool has_iommu; 579 bool has_iommu;
580 bool auto_boot; 580 bool auto_boot;
581 bool sysfs_read_only; 581 bool sysfs_read_only;
582 struct list_head dump_segments; 582 struct list_head dump_segments;
583 int nb_vdev; 583 int nb_vdev;
584 u8 elf_class; 584 u8 elf_class;
585 u16 elf_machine; 585 u16 elf_machine;
586 struct cdev cdev; 586 struct cdev cdev;
587 bool cdev_put_on_release; 587 bool cdev_put_on_release;
588 DECLARE_BITMAP(features, RPROC_MAX_FEA 588 DECLARE_BITMAP(features, RPROC_MAX_FEATURES);
589 }; 589 };
590 590
591 /** 591 /**
592 * struct rproc_subdev - subdevice tied to a r 592 * struct rproc_subdev - subdevice tied to a remoteproc
593 * @node: list node related to the rproc subde 593 * @node: list node related to the rproc subdevs list
594 * @prepare: prepare function, called before t 594 * @prepare: prepare function, called before the rproc is started
595 * @start: start function, called after the rp 595 * @start: start function, called after the rproc has been started
596 * @stop: stop function, called before the rpr 596 * @stop: stop function, called before the rproc is stopped; the @crashed
597 * parameter indicates if this origin 597 * parameter indicates if this originates from a recovery
598 * @unprepare: unprepare function, called afte 598 * @unprepare: unprepare function, called after the rproc has been stopped
599 */ 599 */
600 struct rproc_subdev { 600 struct rproc_subdev {
601 struct list_head node; 601 struct list_head node;
602 602
603 int (*prepare)(struct rproc_subdev *su 603 int (*prepare)(struct rproc_subdev *subdev);
604 int (*start)(struct rproc_subdev *subd 604 int (*start)(struct rproc_subdev *subdev);
605 void (*stop)(struct rproc_subdev *subd 605 void (*stop)(struct rproc_subdev *subdev, bool crashed);
606 void (*unprepare)(struct rproc_subdev 606 void (*unprepare)(struct rproc_subdev *subdev);
607 }; 607 };
608 608
609 /* we currently support only two vrings per rv 609 /* we currently support only two vrings per rvdev */
610 610
611 #define RVDEV_NUM_VRINGS 2 611 #define RVDEV_NUM_VRINGS 2
612 612
613 /** 613 /**
614 * struct rproc_vring - remoteproc vring state 614 * struct rproc_vring - remoteproc vring state
615 * @va: virtual address 615 * @va: virtual address
616 * @num: vring size 616 * @num: vring size
617 * @da: device address 617 * @da: device address
618 * @align: vring alignment 618 * @align: vring alignment
619 * @notifyid: rproc-specific unique vring inde 619 * @notifyid: rproc-specific unique vring index
620 * @rvdev: remote vdev 620 * @rvdev: remote vdev
621 * @vq: the virtqueue of this vring 621 * @vq: the virtqueue of this vring
622 */ 622 */
623 struct rproc_vring { 623 struct rproc_vring {
624 void *va; 624 void *va;
625 int num; 625 int num;
626 u32 da; 626 u32 da;
627 u32 align; 627 u32 align;
628 int notifyid; 628 int notifyid;
629 struct rproc_vdev *rvdev; 629 struct rproc_vdev *rvdev;
630 struct virtqueue *vq; 630 struct virtqueue *vq;
631 }; 631 };
632 632
633 /** 633 /**
634 * struct rproc_vdev - remoteproc state for a 634 * struct rproc_vdev - remoteproc state for a supported virtio device
635 * @subdev: handle for registering the vdev as 635 * @subdev: handle for registering the vdev as a rproc subdevice
636 * @pdev: remoteproc virtio platform device 636 * @pdev: remoteproc virtio platform device
637 * @id: virtio device id (as in virtio_ids.h) 637 * @id: virtio device id (as in virtio_ids.h)
638 * @node: list node 638 * @node: list node
639 * @rproc: the rproc handle 639 * @rproc: the rproc handle
640 * @vring: the vrings for this vdev 640 * @vring: the vrings for this vdev
641 * @rsc_offset: offset of the vdev's resource 641 * @rsc_offset: offset of the vdev's resource entry
642 * @index: vdev position versus other vdev dec 642 * @index: vdev position versus other vdev declared in resource table
643 */ 643 */
644 struct rproc_vdev { 644 struct rproc_vdev {
645 645
646 struct rproc_subdev subdev; 646 struct rproc_subdev subdev;
647 struct platform_device *pdev; 647 struct platform_device *pdev;
648 648
649 unsigned int id; 649 unsigned int id;
650 struct list_head node; 650 struct list_head node;
651 struct rproc *rproc; 651 struct rproc *rproc;
652 struct rproc_vring vring[RVDEV_NUM_VRI 652 struct rproc_vring vring[RVDEV_NUM_VRINGS];
653 u32 rsc_offset; 653 u32 rsc_offset;
654 u32 index; 654 u32 index;
655 }; 655 };
656 656
657 struct rproc *rproc_get_by_phandle(phandle pha 657 struct rproc *rproc_get_by_phandle(phandle phandle);
658 struct rproc *rproc_get_by_child(struct device 658 struct rproc *rproc_get_by_child(struct device *dev);
659 659
660 struct rproc *rproc_alloc(struct device *dev, 660 struct rproc *rproc_alloc(struct device *dev, const char *name,
661 const struct rproc_o 661 const struct rproc_ops *ops,
662 const char *firmware 662 const char *firmware, int len);
663 void rproc_put(struct rproc *rproc); 663 void rproc_put(struct rproc *rproc);
664 int rproc_add(struct rproc *rproc); 664 int rproc_add(struct rproc *rproc);
665 int rproc_del(struct rproc *rproc); 665 int rproc_del(struct rproc *rproc);
666 void rproc_free(struct rproc *rproc); 666 void rproc_free(struct rproc *rproc);
667 void rproc_resource_cleanup(struct rproc *rpro 667 void rproc_resource_cleanup(struct rproc *rproc);
668 668
669 struct rproc *devm_rproc_alloc(struct device * 669 struct rproc *devm_rproc_alloc(struct device *dev, const char *name,
670 const struct rp 670 const struct rproc_ops *ops,
671 const char *fir 671 const char *firmware, int len);
672 int devm_rproc_add(struct device *dev, struct 672 int devm_rproc_add(struct device *dev, struct rproc *rproc);
673 673
674 void rproc_add_carveout(struct rproc *rproc, s 674 void rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem);
675 675
676 struct rproc_mem_entry * 676 struct rproc_mem_entry *
677 rproc_mem_entry_init(struct device *dev, 677 rproc_mem_entry_init(struct device *dev,
678 void *va, dma_addr_t dma, 678 void *va, dma_addr_t dma, size_t len, u32 da,
679 int (*alloc)(struct rproc 679 int (*alloc)(struct rproc *, struct rproc_mem_entry *),
680 int (*release)(struct rpr 680 int (*release)(struct rproc *, struct rproc_mem_entry *),
681 const char *name, ...); 681 const char *name, ...);
682 682
683 struct rproc_mem_entry * 683 struct rproc_mem_entry *
684 rproc_of_resm_mem_entry_init(struct device *de 684 rproc_of_resm_mem_entry_init(struct device *dev, u32 of_resm_idx, size_t len,
685 u32 da, const cha 685 u32 da, const char *name, ...);
686 686
687 int rproc_boot(struct rproc *rproc); 687 int rproc_boot(struct rproc *rproc);
688 int rproc_shutdown(struct rproc *rproc); 688 int rproc_shutdown(struct rproc *rproc);
689 int rproc_detach(struct rproc *rproc); 689 int rproc_detach(struct rproc *rproc);
690 int rproc_set_firmware(struct rproc *rproc, co 690 int rproc_set_firmware(struct rproc *rproc, const char *fw_name);
691 void rproc_report_crash(struct rproc *rproc, e 691 void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type);
692 void *rproc_da_to_va(struct rproc *rproc, u64 692 void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
693 693
694 /* from remoteproc_coredump.c */ 694 /* from remoteproc_coredump.c */
695 void rproc_coredump_cleanup(struct rproc *rpro 695 void rproc_coredump_cleanup(struct rproc *rproc);
696 void rproc_coredump(struct rproc *rproc); 696 void rproc_coredump(struct rproc *rproc);
697 void rproc_coredump_using_sections(struct rpro 697 void rproc_coredump_using_sections(struct rproc *rproc);
698 int rproc_coredump_add_segment(struct rproc *r 698 int rproc_coredump_add_segment(struct rproc *rproc, dma_addr_t da, size_t size);
699 int rproc_coredump_add_custom_segment(struct r 699 int rproc_coredump_add_custom_segment(struct rproc *rproc,
700 dma_addr 700 dma_addr_t da, size_t size,
701 void (*d 701 void (*dumpfn)(struct rproc *rproc,
702 702 struct rproc_dump_segment *segment,
703 703 void *dest, size_t offset,
704 704 size_t size),
705 void *pr 705 void *priv);
706 int rproc_coredump_set_elf_info(struct rproc * 706 int rproc_coredump_set_elf_info(struct rproc *rproc, u8 class, u16 machine);
707 707
708 void rproc_add_subdev(struct rproc *rproc, str 708 void rproc_add_subdev(struct rproc *rproc, struct rproc_subdev *subdev);
709 709
710 void rproc_remove_subdev(struct rproc *rproc, 710 void rproc_remove_subdev(struct rproc *rproc, struct rproc_subdev *subdev);
711 711
712 #endif /* REMOTEPROC_H */ 712 #endif /* REMOTEPROC_H */
713 713
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