Lines Matching +full:firmware +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0-only
8 * Ohad Ben-Cohen <ohad@wizery.com>
12 * Suman Anna <s-anna@ti.com>
26 #include <linux/dma-map-ops.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/dma-direct.h> /* XXX: pokes into bus_dma_range */
29 #include <linux/firmware.h>
98 return -ENOSYS; in rproc_iommu_fault()
104 struct device *dev = rproc->dev.parent; in rproc_enable_iommu()
107 if (!rproc->has_iommu) { in rproc_enable_iommu()
112 domain = iommu_domain_alloc(dev->bus); in rproc_enable_iommu()
115 return -ENOMEM; in rproc_enable_iommu()
126 rproc->domain = domain; in rproc_enable_iommu()
137 struct iommu_domain *domain = rproc->domain; in rproc_disable_iommu()
138 struct device *dev = rproc->dev.parent; in rproc_disable_iommu()
151 * - in vmalloc: if region ioremapped or defined as dma_alloc_coherent in rproc_va_to_pa()
152 * - in kernel: if region allocated in generic dma memory pool in rproc_va_to_pa()
165 * rproc_da_to_va() - lookup the kernel virtual address for a remoteproc address
173 * device addresses (which are hardcoded in the firmware). They may also have
187 * Note: phys_to_virt(iommu_iova_to_phys(rproc->domain, da)) will work too,
199 if (rproc->ops->da_to_va) { in rproc_da_to_va()
200 ptr = rproc->ops->da_to_va(rproc, da, len, is_iomem); in rproc_da_to_va()
205 list_for_each_entry(carveout, &rproc->carveouts, node) { in rproc_da_to_va()
206 int offset = da - carveout->da; in rproc_da_to_va()
209 if (!carveout->va) in rproc_da_to_va()
217 if (offset + len > carveout->len) in rproc_da_to_va()
220 ptr = carveout->va + offset; in rproc_da_to_va()
223 *is_iomem = carveout->is_iomem; in rproc_da_to_va()
234 * rproc_find_carveout_by_name() - lookup the carveout region by a name
236 * @name: carveout name to find (format string)
237 * @...: optional parameters matching @name string
239 * Platform driver has the capability to register some pre-allacoted carveout
240 * (physically contiguous memory regions) before rproc firmware loading and
253 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...) in rproc_find_carveout_by_name() argument
259 if (!name) in rproc_find_carveout_by_name()
262 va_start(args, name); in rproc_find_carveout_by_name()
263 vsnprintf(_name, sizeof(_name), name, args); in rproc_find_carveout_by_name()
266 list_for_each_entry(carveout, &rproc->carveouts, node) { in rproc_find_carveout_by_name()
268 if (!strcmp(carveout->name, _name)) { in rproc_find_carveout_by_name()
278 * rproc_check_carveout_da() - Check specified carveout da configuration
294 struct device *dev = &rproc->dev; in rproc_check_carveout_da()
298 if (len > mem->len) { in rproc_check_carveout_da()
300 return -EINVAL; in rproc_check_carveout_da()
303 if (da != FW_RSC_ADDR_ANY && mem->da == FW_RSC_ADDR_ANY) { in rproc_check_carveout_da()
305 return -EINVAL; in rproc_check_carveout_da()
306 } else if (da != FW_RSC_ADDR_ANY && mem->da != FW_RSC_ADDR_ANY) { in rproc_check_carveout_da()
307 delta = da - mem->da; in rproc_check_carveout_da()
313 return -EINVAL; in rproc_check_carveout_da()
316 if (delta + len > mem->len) { in rproc_check_carveout_da()
319 return -EINVAL; in rproc_check_carveout_da()
328 struct rproc *rproc = rvdev->rproc; in rproc_alloc_vring()
329 struct device *dev = &rproc->dev; in rproc_alloc_vring()
330 struct rproc_vring *rvring = &rvdev->vring[i]; in rproc_alloc_vring()
337 size = PAGE_ALIGN(vring_size(rvring->len, rvring->align)); in rproc_alloc_vring()
339 rsc = (void *)rproc->table_ptr + rvdev->rsc_offset; in rproc_alloc_vring()
341 /* Search for pre-registered carveout */ in rproc_alloc_vring()
342 mem = rproc_find_carveout_by_name(rproc, "vdev%dvring%d", rvdev->index, in rproc_alloc_vring()
345 if (rproc_check_carveout_da(rproc, mem, rsc->vring[i].da, size)) in rproc_alloc_vring()
346 return -ENOMEM; in rproc_alloc_vring()
350 size, rsc->vring[i].da, in rproc_alloc_vring()
354 rvdev->index, i); in rproc_alloc_vring()
357 return -ENOMEM; in rproc_alloc_vring()
364 * Assign an rproc-wide unique index for this vring in rproc_alloc_vring()
368 ret = idr_alloc(&rproc->notifyids, rvring, 0, 0, GFP_KERNEL); in rproc_alloc_vring()
376 if (notifyid > rproc->max_notifyid) in rproc_alloc_vring()
377 rproc->max_notifyid = notifyid; in rproc_alloc_vring()
379 rvring->notifyid = notifyid; in rproc_alloc_vring()
382 rsc->vring[i].notifyid = notifyid; in rproc_alloc_vring()
389 struct rproc *rproc = rvdev->rproc; in rproc_parse_vring()
390 struct device *dev = &rproc->dev; in rproc_parse_vring()
391 struct fw_rsc_vdev_vring *vring = &rsc->vring[i]; in rproc_parse_vring()
392 struct rproc_vring *rvring = &rvdev->vring[i]; in rproc_parse_vring()
395 i, vring->da, vring->num, vring->align); in rproc_parse_vring()
398 if (!vring->num || !vring->align) { in rproc_parse_vring()
400 vring->num, vring->align); in rproc_parse_vring()
401 return -EINVAL; in rproc_parse_vring()
404 rvring->len = vring->num; in rproc_parse_vring()
405 rvring->align = vring->align; in rproc_parse_vring()
406 rvring->rvdev = rvdev; in rproc_parse_vring()
413 struct rproc *rproc = rvring->rvdev->rproc; in rproc_free_vring()
414 int idx = rvring - rvring->rvdev->vring; in rproc_free_vring()
417 idr_remove(&rproc->notifyids, rvring->notifyid); in rproc_free_vring()
422 * such and as per rproc_stop(), rproc->table_ptr points to the cached in rproc_free_vring()
423 * resource table (rproc->cached_table). The cached resource table is in rproc_free_vring()
430 if (rproc->table_ptr) { in rproc_free_vring()
431 rsc = (void *)rproc->table_ptr + rvring->rvdev->rsc_offset; in rproc_free_vring()
432 rsc->vring[idx].da = 0; in rproc_free_vring()
433 rsc->vring[idx].notifyid = -1; in rproc_free_vring()
441 return rproc_add_virtio_dev(rvdev, rvdev->id); in rproc_vdev_do_start()
449 ret = device_for_each_child(&rvdev->dev, NULL, rproc_remove_virtio_dev); in rproc_vdev_do_stop()
451 dev_warn(&rvdev->dev, "can't remove vdev child device: %d\n", ret); in rproc_vdev_do_stop()
455 * rproc_rvdev_release() - release the existence of a rvdev
470 const struct bus_dma_region *map = from->dma_range_map, *new_map, *r; in copy_dma_range_map()
476 for (r = map; r->size; r++) in copy_dma_range_map()
482 return -ENOMEM; in copy_dma_range_map()
483 to->dma_range_map = new_map; in copy_dma_range_map()
488 * rproc_handle_vdev() - handle a vdev fw resource
499 * Before registering the vdev, the vrings are allocated from non-cacheable
502 * doing the vring allocation only later when ->find_vqs() is invoked, and
503 * then release them upon ->del_vqs().
508 * going to be taken care of when the generic iommu-based DMA API will be
509 * merged. Meanwhile, statically-addressed iommu-based firmware images should
519 struct device *dev = &rproc->dev; in rproc_handle_vdev()
522 char name[16]; in rproc_handle_vdev() local
525 if (struct_size(rsc, vring, rsc->num_of_vrings) + rsc->config_len > in rproc_handle_vdev()
528 return -EINVAL; in rproc_handle_vdev()
532 if (rsc->reserved[0] || rsc->reserved[1]) { in rproc_handle_vdev()
534 return -EINVAL; in rproc_handle_vdev()
538 rsc->id, rsc->dfeatures, rsc->config_len, rsc->num_of_vrings); in rproc_handle_vdev()
541 if (rsc->num_of_vrings > ARRAY_SIZE(rvdev->vring)) { in rproc_handle_vdev()
542 dev_err(dev, "too many vrings: %d\n", rsc->num_of_vrings); in rproc_handle_vdev()
543 return -EINVAL; in rproc_handle_vdev()
548 return -ENOMEM; in rproc_handle_vdev()
550 kref_init(&rvdev->refcount); in rproc_handle_vdev()
552 rvdev->id = rsc->id; in rproc_handle_vdev()
553 rvdev->rproc = rproc; in rproc_handle_vdev()
554 rvdev->index = rproc->nb_vdev++; in rproc_handle_vdev()
557 snprintf(name, sizeof(name), "vdev%dbuffer", rvdev->index); in rproc_handle_vdev()
558 rvdev->dev.parent = &rproc->dev; in rproc_handle_vdev()
559 ret = copy_dma_range_map(&rvdev->dev, rproc->dev.parent); in rproc_handle_vdev()
562 rvdev->dev.release = rproc_rvdev_release; in rproc_handle_vdev()
563 dev_set_name(&rvdev->dev, "%s#%s", dev_name(rvdev->dev.parent), name); in rproc_handle_vdev()
564 dev_set_drvdata(&rvdev->dev, rvdev); in rproc_handle_vdev()
566 ret = device_register(&rvdev->dev); in rproc_handle_vdev()
568 put_device(&rvdev->dev); in rproc_handle_vdev()
572 set_dma_ops(&rvdev->dev, get_dma_ops(rproc->dev.parent)); in rproc_handle_vdev()
574 ret = dma_coerce_mask_and_coherent(&rvdev->dev, in rproc_handle_vdev()
575 dma_get_mask(rproc->dev.parent)); in rproc_handle_vdev()
579 dma_get_mask(rproc->dev.parent), ret); in rproc_handle_vdev()
583 for (i = 0; i < rsc->num_of_vrings; i++) { in rproc_handle_vdev()
590 rvdev->rsc_offset = offset; in rproc_handle_vdev()
593 for (i = 0; i < rsc->num_of_vrings; i++) { in rproc_handle_vdev()
599 list_add_tail(&rvdev->node, &rproc->rvdevs); in rproc_handle_vdev()
601 rvdev->subdev.start = rproc_vdev_do_start; in rproc_handle_vdev()
602 rvdev->subdev.stop = rproc_vdev_do_stop; in rproc_handle_vdev()
604 rproc_add_subdev(rproc, &rvdev->subdev); in rproc_handle_vdev()
609 for (i--; i >= 0; i--) in rproc_handle_vdev()
610 rproc_free_vring(&rvdev->vring[i]); in rproc_handle_vdev()
612 device_unregister(&rvdev->dev); in rproc_handle_vdev()
620 struct rproc *rproc = rvdev->rproc; in rproc_vdev_release()
623 for (id = 0; id < ARRAY_SIZE(rvdev->vring); id++) { in rproc_vdev_release()
624 rvring = &rvdev->vring[id]; in rproc_vdev_release()
628 rproc_remove_subdev(rproc, &rvdev->subdev); in rproc_vdev_release()
629 list_del(&rvdev->node); in rproc_vdev_release()
630 device_unregister(&rvdev->dev); in rproc_vdev_release()
634 * rproc_handle_trace() - handle a shared trace buffer resource
655 struct device *dev = &rproc->dev; in rproc_handle_trace()
656 char name[15]; in rproc_handle_trace() local
660 return -EINVAL; in rproc_handle_trace()
664 if (rsc->reserved) { in rproc_handle_trace()
666 return -EINVAL; in rproc_handle_trace()
671 return -ENOMEM; in rproc_handle_trace()
674 trace->trace_mem.len = rsc->len; in rproc_handle_trace()
675 trace->trace_mem.da = rsc->da; in rproc_handle_trace()
678 trace->rproc = rproc; in rproc_handle_trace()
681 snprintf(name, sizeof(name), "trace%d", rproc->num_traces); in rproc_handle_trace()
684 trace->tfile = rproc_create_trace_file(name, rproc, trace); in rproc_handle_trace()
685 if (!trace->tfile) { in rproc_handle_trace()
687 return -EINVAL; in rproc_handle_trace()
690 list_add_tail(&trace->node, &rproc->traces); in rproc_handle_trace()
692 rproc->num_traces++; in rproc_handle_trace()
695 name, rsc->da, rsc->len); in rproc_handle_trace()
701 * rproc_handle_devmem() - handle devmem resource entry
707 * Remote processors commonly need to access certain on-chip peripherals.
711 * the on-chip peripherals they need.
722 * tell us ranges of physical addresses the firmware is allowed to request,
733 struct device *dev = &rproc->dev; in rproc_handle_devmem()
737 if (!rproc->domain) in rproc_handle_devmem()
738 return -EINVAL; in rproc_handle_devmem()
742 return -EINVAL; in rproc_handle_devmem()
746 if (rsc->reserved) { in rproc_handle_devmem()
748 return -EINVAL; in rproc_handle_devmem()
753 return -ENOMEM; in rproc_handle_devmem()
755 ret = iommu_map(rproc->domain, rsc->da, rsc->pa, rsc->len, rsc->flags); in rproc_handle_devmem()
768 mapping->da = rsc->da; in rproc_handle_devmem()
769 mapping->len = rsc->len; in rproc_handle_devmem()
770 list_add_tail(&mapping->node, &rproc->mappings); in rproc_handle_devmem()
773 rsc->pa, rsc->da, rsc->len); in rproc_handle_devmem()
783 * rproc_alloc_carveout() - allocated specified carveout
796 struct device *dev = &rproc->dev; in rproc_alloc_carveout()
801 va = dma_alloc_coherent(dev->parent, mem->len, &dma, GFP_KERNEL); in rproc_alloc_carveout()
803 dev_err(dev->parent, in rproc_alloc_carveout()
805 mem->len); in rproc_alloc_carveout()
806 return -ENOMEM; in rproc_alloc_carveout()
810 va, &dma, mem->len); in rproc_alloc_carveout()
812 if (mem->da != FW_RSC_ADDR_ANY && !rproc->domain) { in rproc_alloc_carveout()
819 if (mem->da != (u32)dma) in rproc_alloc_carveout()
820 dev_warn(dev->parent, in rproc_alloc_carveout()
825 * Ok, this is non-standard. in rproc_alloc_carveout()
827 * Sometimes we can't rely on the generic iommu-based DMA API in rproc_alloc_carveout()
831 * firmware was compiled with. in rproc_alloc_carveout()
838 * to use the iommu-based DMA API: we expect 'dma' to contain the in rproc_alloc_carveout()
841 if (mem->da != FW_RSC_ADDR_ANY && rproc->domain) { in rproc_alloc_carveout()
844 ret = -ENOMEM; in rproc_alloc_carveout()
848 ret = iommu_map(rproc->domain, mem->da, dma, mem->len, in rproc_alloc_carveout()
849 mem->flags); in rproc_alloc_carveout()
862 mapping->da = mem->da; in rproc_alloc_carveout()
863 mapping->len = mem->len; in rproc_alloc_carveout()
864 list_add_tail(&mapping->node, &rproc->mappings); in rproc_alloc_carveout()
867 mem->da, &dma); in rproc_alloc_carveout()
870 if (mem->da == FW_RSC_ADDR_ANY) { in rproc_alloc_carveout()
875 mem->da = (u32)dma; in rproc_alloc_carveout()
878 mem->dma = dma; in rproc_alloc_carveout()
879 mem->va = va; in rproc_alloc_carveout()
886 dma_free_coherent(dev->parent, mem->len, va, dma); in rproc_alloc_carveout()
891 * rproc_release_carveout() - release acquired carveout
903 struct device *dev = &rproc->dev; in rproc_release_carveout()
906 dma_free_coherent(dev->parent, mem->len, mem->va, mem->dma); in rproc_release_carveout()
911 * rproc_handle_carveout() - handle phys contig memory allocation requests
917 * This function will handle firmware requests for allocation of physically
920 * These request entries should come first in the firmware's resource table,
921 * as other firmware entries might request placing other data objects inside
936 struct device *dev = &rproc->dev; in rproc_handle_carveout()
940 return -EINVAL; in rproc_handle_carveout()
944 if (rsc->reserved) { in rproc_handle_carveout()
946 return -EINVAL; in rproc_handle_carveout()
949 dev_dbg(dev, "carveout rsc: name: %s, da 0x%x, pa 0x%x, len 0x%x, flags 0x%x\n", in rproc_handle_carveout()
950 rsc->name, rsc->da, rsc->pa, rsc->len, rsc->flags); in rproc_handle_carveout()
954 * Search by name, then check the da and length in rproc_handle_carveout()
956 carveout = rproc_find_carveout_by_name(rproc, rsc->name); in rproc_handle_carveout()
959 if (carveout->rsc_offset != FW_RSC_ADDR_ANY) { in rproc_handle_carveout()
962 return -ENOMEM; in rproc_handle_carveout()
965 if (rproc_check_carveout_da(rproc, carveout, rsc->da, rsc->len)) in rproc_handle_carveout()
966 return -ENOMEM; in rproc_handle_carveout()
969 carveout->rsc_offset = offset; in rproc_handle_carveout()
970 carveout->flags = rsc->flags; in rproc_handle_carveout()
976 carveout = rproc_mem_entry_init(dev, NULL, 0, rsc->len, rsc->da, in rproc_handle_carveout()
978 rproc_release_carveout, rsc->name); in rproc_handle_carveout()
981 return -ENOMEM; in rproc_handle_carveout()
984 carveout->flags = rsc->flags; in rproc_handle_carveout()
985 carveout->rsc_offset = offset; in rproc_handle_carveout()
992 * rproc_add_carveout() - register an allocated carveout region
1001 list_add_tail(&mem->node, &rproc->carveouts); in rproc_add_carveout()
1006 * rproc_mem_entry_init() - allocate and initialize rproc_mem_entry struct
1014 * @name: carveout name
1027 const char *name, ...) in rproc_mem_entry_init() argument
1036 mem->va = va; in rproc_mem_entry_init()
1037 mem->dma = dma; in rproc_mem_entry_init()
1038 mem->da = da; in rproc_mem_entry_init()
1039 mem->len = len; in rproc_mem_entry_init()
1040 mem->alloc = alloc; in rproc_mem_entry_init()
1041 mem->release = release; in rproc_mem_entry_init()
1042 mem->rsc_offset = FW_RSC_ADDR_ANY; in rproc_mem_entry_init()
1043 mem->of_resm_idx = -1; in rproc_mem_entry_init()
1045 va_start(args, name); in rproc_mem_entry_init()
1046 vsnprintf(mem->name, sizeof(mem->name), name, args); in rproc_mem_entry_init()
1054 * rproc_of_resm_mem_entry_init() - allocate and initialize rproc_mem_entry struct
1057 * @of_resm_idx: reserved memory phandle index in "memory-region"
1060 * @name: carveout name
1070 u32 da, const char *name, ...) in rproc_of_resm_mem_entry_init() argument
1079 mem->da = da; in rproc_of_resm_mem_entry_init()
1080 mem->len = len; in rproc_of_resm_mem_entry_init()
1081 mem->rsc_offset = FW_RSC_ADDR_ANY; in rproc_of_resm_mem_entry_init()
1082 mem->of_resm_idx = of_resm_idx; in rproc_of_resm_mem_entry_init()
1084 va_start(args, name); in rproc_of_resm_mem_entry_init()
1085 vsnprintf(mem->name, sizeof(mem->name), name, args); in rproc_of_resm_mem_entry_init()
1093 * rproc_of_parse_firmware() - parse and return the firmware-name
1095 * @index: index to use for the firmware-name retrieval
1096 * @fw_name: pointer to a character string, in which the firmware
1097 * name is returned on success and unmodified otherwise.
1100 * the "firmware-name" property and returns the firmware name pointer
1109 ret = of_property_read_string_index(dev->of_node, "firmware-name", in rproc_of_parse_firmware()
1126 /* handle firmware resource entries before booting the remote processor */
1130 struct device *dev = &rproc->dev; in rproc_handle_resources()
1134 if (!rproc->table_ptr) in rproc_handle_resources()
1137 for (i = 0; i < rproc->table_ptr->num; i++) { in rproc_handle_resources()
1138 int offset = rproc->table_ptr->offset[i]; in rproc_handle_resources()
1139 struct fw_rsc_hdr *hdr = (void *)rproc->table_ptr + offset; in rproc_handle_resources()
1140 int avail = rproc->table_sz - offset - sizeof(*hdr); in rproc_handle_resources()
1146 return -EINVAL; in rproc_handle_resources()
1149 dev_dbg(dev, "rsc: type %d\n", hdr->type); in rproc_handle_resources()
1151 if (hdr->type >= RSC_VENDOR_START && in rproc_handle_resources()
1152 hdr->type <= RSC_VENDOR_END) { in rproc_handle_resources()
1153 ret = rproc_handle_rsc(rproc, hdr->type, rsc, in rproc_handle_resources()
1161 hdr->type); in rproc_handle_resources()
1165 if (hdr->type >= RSC_LAST) { in rproc_handle_resources()
1166 dev_warn(dev, "unsupported resource %d\n", hdr->type); in rproc_handle_resources()
1170 handler = handlers[hdr->type]; in rproc_handle_resources()
1187 list_for_each_entry(subdev, &rproc->subdevs, node) { in rproc_prepare_subdevices()
1188 if (subdev->prepare) { in rproc_prepare_subdevices()
1189 ret = subdev->prepare(subdev); in rproc_prepare_subdevices()
1198 list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) { in rproc_prepare_subdevices()
1199 if (subdev->unprepare) in rproc_prepare_subdevices()
1200 subdev->unprepare(subdev); in rproc_prepare_subdevices()
1211 list_for_each_entry(subdev, &rproc->subdevs, node) { in rproc_start_subdevices()
1212 if (subdev->start) { in rproc_start_subdevices()
1213 ret = subdev->start(subdev); in rproc_start_subdevices()
1222 list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) { in rproc_start_subdevices()
1223 if (subdev->stop) in rproc_start_subdevices()
1224 subdev->stop(subdev, true); in rproc_start_subdevices()
1234 list_for_each_entry_reverse(subdev, &rproc->subdevs, node) { in rproc_stop_subdevices()
1235 if (subdev->stop) in rproc_stop_subdevices()
1236 subdev->stop(subdev, crashed); in rproc_stop_subdevices()
1244 list_for_each_entry_reverse(subdev, &rproc->subdevs, node) { in rproc_unprepare_subdevices()
1245 if (subdev->unprepare) in rproc_unprepare_subdevices()
1246 subdev->unprepare(subdev); in rproc_unprepare_subdevices()
1251 * rproc_alloc_registered_carveouts() - allocate all carveouts registered
1265 struct device *dev = &rproc->dev; in rproc_alloc_registered_carveouts()
1269 list_for_each_entry_safe(entry, tmp, &rproc->carveouts, node) { in rproc_alloc_registered_carveouts()
1270 if (entry->alloc) { in rproc_alloc_registered_carveouts()
1271 ret = entry->alloc(rproc, entry); in rproc_alloc_registered_carveouts()
1274 entry->name, ret); in rproc_alloc_registered_carveouts()
1275 return -ENOMEM; in rproc_alloc_registered_carveouts()
1279 if (entry->rsc_offset != FW_RSC_ADDR_ANY) { in rproc_alloc_registered_carveouts()
1281 rsc = (void *)rproc->table_ptr + entry->rsc_offset; in rproc_alloc_registered_carveouts()
1287 * on-chip hardware accelerators that are not behind in rproc_alloc_registered_carveouts()
1296 * Non-IOMMU processors might also want to have this info. in rproc_alloc_registered_carveouts()
1302 if (entry->va) in rproc_alloc_registered_carveouts()
1303 pa = (u64)rproc_va_to_pa(entry->va); in rproc_alloc_registered_carveouts()
1305 pa = (u64)entry->dma; in rproc_alloc_registered_carveouts()
1311 rsc->pa = (u32)pa; in rproc_alloc_registered_carveouts()
1312 rsc->da = entry->da; in rproc_alloc_registered_carveouts()
1313 rsc->len = entry->len; in rproc_alloc_registered_carveouts()
1322 * rproc_resource_cleanup() - clean up and free all acquired resources
1333 struct device *dev = &rproc->dev; in rproc_resource_cleanup()
1336 list_for_each_entry_safe(trace, ttmp, &rproc->traces, node) { in rproc_resource_cleanup()
1337 rproc_remove_trace_file(trace->tfile); in rproc_resource_cleanup()
1338 rproc->num_traces--; in rproc_resource_cleanup()
1339 list_del(&trace->node); in rproc_resource_cleanup()
1344 list_for_each_entry_safe(entry, tmp, &rproc->mappings, node) { in rproc_resource_cleanup()
1347 unmapped = iommu_unmap(rproc->domain, entry->da, entry->len); in rproc_resource_cleanup()
1348 if (unmapped != entry->len) { in rproc_resource_cleanup()
1350 dev_err(dev, "failed to unmap %zx/%zu\n", entry->len, in rproc_resource_cleanup()
1354 list_del(&entry->node); in rproc_resource_cleanup()
1359 list_for_each_entry_safe(entry, tmp, &rproc->carveouts, node) { in rproc_resource_cleanup()
1360 if (entry->release) in rproc_resource_cleanup()
1361 entry->release(rproc, entry); in rproc_resource_cleanup()
1362 list_del(&entry->node); in rproc_resource_cleanup()
1367 list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node) in rproc_resource_cleanup()
1368 kref_put(&rvdev->refcount, rproc_vdev_release); in rproc_resource_cleanup()
1374 static int rproc_start(struct rproc *rproc, const struct firmware *fw) in rproc_start()
1377 struct device *dev = &rproc->dev; in rproc_start()
1388 * The starting device has been given the rproc->cached_table as the in rproc_start()
1397 memcpy(loaded_table, rproc->cached_table, rproc->table_sz); in rproc_start()
1398 rproc->table_ptr = loaded_table; in rproc_start()
1404 rproc->name, ret); in rproc_start()
1409 ret = rproc->ops->start(rproc); in rproc_start()
1411 dev_err(dev, "can't start rproc %s: %d\n", rproc->name, ret); in rproc_start()
1419 rproc->name, ret); in rproc_start()
1423 rproc->state = RPROC_RUNNING; in rproc_start()
1425 dev_info(dev, "remote processor %s is now up\n", rproc->name); in rproc_start()
1430 rproc->ops->stop(rproc); in rproc_start()
1434 rproc->table_ptr = rproc->cached_table; in rproc_start()
1441 struct device *dev = &rproc->dev; in __rproc_attach()
1447 rproc->name, ret); in __rproc_attach()
1455 rproc->name, ret); in __rproc_attach()
1463 rproc->name, ret); in __rproc_attach()
1467 rproc->state = RPROC_ATTACHED; in __rproc_attach()
1469 dev_info(dev, "remote processor %s is now attached\n", rproc->name); in __rproc_attach()
1474 rproc->ops->stop(rproc); in __rproc_attach()
1482 * take a firmware and boot a remote processor with it.
1484 static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) in rproc_fw_boot()
1486 struct device *dev = &rproc->dev; in rproc_fw_boot()
1487 const char *name = rproc->firmware; in rproc_fw_boot() local
1494 dev_info(dev, "Booting fw image %s, size %zd\n", name, fw->size); in rproc_fw_boot()
1506 /* Prepare rproc for firmware loading if needed */ in rproc_fw_boot()
1509 dev_err(dev, "can't prepare rproc %s: %d\n", rproc->name, ret); in rproc_fw_boot()
1513 rproc->bootaddr = rproc_get_boot_addr(rproc, fw); in rproc_fw_boot()
1515 /* Load resource table, core dump segment list etc from the firmware */ in rproc_fw_boot()
1521 rproc->max_notifyid = -1; in rproc_fw_boot()
1524 rproc->nb_vdev = 0; in rproc_fw_boot()
1549 kfree(rproc->cached_table); in rproc_fw_boot()
1550 rproc->cached_table = NULL; in rproc_fw_boot()
1551 rproc->table_ptr = NULL; in rproc_fw_boot()
1563 struct device *dev = &rproc->dev; in rproc_set_rsc_table()
1582 * the remote processor is re-attached, that is: in rproc_set_rsc_table()
1584 * DETACHED -> ATTACHED -> DETACHED -> ATTACHED in rproc_set_rsc_table()
1589 if (rproc->ops->detach) { in rproc_set_rsc_table()
1590 rproc->clean_table = kmemdup(table_ptr, table_sz, GFP_KERNEL); in rproc_set_rsc_table()
1591 if (!rproc->clean_table) in rproc_set_rsc_table()
1592 return -ENOMEM; in rproc_set_rsc_table()
1594 rproc->clean_table = NULL; in rproc_set_rsc_table()
1597 rproc->cached_table = NULL; in rproc_set_rsc_table()
1598 rproc->table_ptr = table_ptr; in rproc_set_rsc_table()
1599 rproc->table_sz = table_sz; in rproc_set_rsc_table()
1609 if (!rproc->table_ptr) in rproc_reset_rsc_table_on_detach()
1617 if (WARN_ON(!rproc->clean_table)) in rproc_reset_rsc_table_on_detach()
1618 return -EINVAL; in rproc_reset_rsc_table_on_detach()
1621 table_ptr = rproc->table_ptr; in rproc_reset_rsc_table_on_detach()
1630 rproc->cached_table = kmemdup(rproc->table_ptr, in rproc_reset_rsc_table_on_detach()
1631 rproc->table_sz, GFP_KERNEL); in rproc_reset_rsc_table_on_detach()
1632 if (!rproc->cached_table) in rproc_reset_rsc_table_on_detach()
1633 return -ENOMEM; in rproc_reset_rsc_table_on_detach()
1639 rproc->table_ptr = rproc->cached_table; in rproc_reset_rsc_table_on_detach()
1642 * Reset the memory area where the firmware loaded the resource table in rproc_reset_rsc_table_on_detach()
1643 * to its original value. That way when we re-attach the remote in rproc_reset_rsc_table_on_detach()
1646 memcpy(table_ptr, rproc->clean_table, rproc->table_sz); in rproc_reset_rsc_table_on_detach()
1652 kfree(rproc->clean_table); in rproc_reset_rsc_table_on_detach()
1660 if (!rproc->table_ptr) in rproc_reset_rsc_table_on_stop()
1668 if (rproc->cached_table) in rproc_reset_rsc_table_on_stop()
1678 rproc->cached_table = kmemdup(rproc->table_ptr, in rproc_reset_rsc_table_on_stop()
1679 rproc->table_sz, GFP_KERNEL); in rproc_reset_rsc_table_on_stop()
1680 if (!rproc->cached_table) in rproc_reset_rsc_table_on_stop()
1681 return -ENOMEM; in rproc_reset_rsc_table_on_stop()
1687 kfree(rproc->clean_table); in rproc_reset_rsc_table_on_stop()
1694 rproc->table_ptr = rproc->cached_table; in rproc_reset_rsc_table_on_stop()
1699 * Attach to remote processor - similar to rproc_fw_boot() but without
1700 * the steps that deal with the firmware image.
1704 struct device *dev = &rproc->dev; in rproc_attach()
1720 dev_err(dev, "can't prepare rproc %s: %d\n", rproc->name, ret); in rproc_attach()
1731 rproc->max_notifyid = -1; in rproc_attach()
1734 rproc->nb_vdev = 0; in rproc_attach()
1737 * Handle firmware resources required to attach to a remote processor. in rproc_attach()
1739 * we expect the platform driver to properly set rproc->table_ptr. in rproc_attach()
1772 * take a firmware and boot it up.
1779 static void rproc_auto_boot_callback(const struct firmware *fw, void *context) in rproc_auto_boot_callback()
1795 * for a firmware image to be loaded, we can simply initiate the process in rproc_trigger_auto_boot()
1798 if (rproc->state == RPROC_DETACHED) in rproc_trigger_auto_boot()
1802 * We're initiating an asynchronous firmware loading, so we can in rproc_trigger_auto_boot()
1803 * be built-in kernel code, without hanging the boot process. in rproc_trigger_auto_boot()
1806 rproc->firmware, &rproc->dev, GFP_KERNEL, in rproc_trigger_auto_boot()
1809 dev_err(&rproc->dev, "request_firmware_nowait err: %d\n", ret); in rproc_trigger_auto_boot()
1816 struct device *dev = &rproc->dev; in rproc_stop()
1820 if (!rproc->ops->stop) in rproc_stop()
1821 return -EINVAL; in rproc_stop()
1835 ret = rproc->ops->stop(rproc); in rproc_stop()
1843 rproc->state = RPROC_OFFLINE; in rproc_stop()
1845 dev_info(dev, "stopped remote processor %s\n", rproc->name); in rproc_stop()
1855 struct device *dev = &rproc->dev; in __rproc_detach()
1859 if (!rproc->ops->detach) in __rproc_detach()
1860 return -EINVAL; in __rproc_detach()
1873 ret = rproc->ops->detach(rproc); in __rproc_detach()
1881 rproc->state = RPROC_DETACHED; in __rproc_detach()
1883 dev_info(dev, "detached remote processor %s\n", rproc->name); in __rproc_detach()
1889 * rproc_trigger_recovery() - recover a remoteproc
1902 const struct firmware *firmware_p; in rproc_trigger_recovery()
1903 struct device *dev = &rproc->dev; in rproc_trigger_recovery()
1906 ret = mutex_lock_interruptible(&rproc->lock); in rproc_trigger_recovery()
1911 if (rproc->state != RPROC_CRASHED) in rproc_trigger_recovery()
1914 dev_err(dev, "recovering %s\n", rproc->name); in rproc_trigger_recovery()
1921 rproc->ops->coredump(rproc); in rproc_trigger_recovery()
1923 /* load firmware */ in rproc_trigger_recovery()
1924 ret = request_firmware(&firmware_p, rproc->firmware, dev); in rproc_trigger_recovery()
1936 mutex_unlock(&rproc->lock); in rproc_trigger_recovery()
1941 * rproc_crash_handler_work() - handle a crash
1950 struct device *dev = &rproc->dev; in rproc_crash_handler_work()
1954 mutex_lock(&rproc->lock); in rproc_crash_handler_work()
1956 if (rproc->state == RPROC_CRASHED || rproc->state == RPROC_OFFLINE) { in rproc_crash_handler_work()
1958 mutex_unlock(&rproc->lock); in rproc_crash_handler_work()
1962 rproc->state = RPROC_CRASHED; in rproc_crash_handler_work()
1963 dev_err(dev, "handling crash #%u in %s\n", ++rproc->crash_cnt, in rproc_crash_handler_work()
1964 rproc->name); in rproc_crash_handler_work()
1966 mutex_unlock(&rproc->lock); in rproc_crash_handler_work()
1968 if (!rproc->recovery_disabled) in rproc_crash_handler_work()
1971 pm_relax(rproc->dev.parent); in rproc_crash_handler_work()
1975 * rproc_boot() - boot a remote processor
1978 * Boot a remote processor (i.e. load its firmware, power it on, ...).
1987 const struct firmware *firmware_p; in rproc_boot()
1993 return -EINVAL; in rproc_boot()
1996 dev = &rproc->dev; in rproc_boot()
1998 ret = mutex_lock_interruptible(&rproc->lock); in rproc_boot()
2000 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_boot()
2004 if (rproc->state == RPROC_DELETED) { in rproc_boot()
2005 ret = -ENODEV; in rproc_boot()
2006 dev_err(dev, "can't boot deleted rproc %s\n", rproc->name); in rproc_boot()
2011 if (atomic_inc_return(&rproc->power) > 1) { in rproc_boot()
2016 if (rproc->state == RPROC_DETACHED) { in rproc_boot()
2017 dev_info(dev, "attaching to %s\n", rproc->name); in rproc_boot()
2021 dev_info(dev, "powering up %s\n", rproc->name); in rproc_boot()
2023 /* load firmware */ in rproc_boot()
2024 ret = request_firmware(&firmware_p, rproc->firmware, dev); in rproc_boot()
2037 atomic_dec(&rproc->power); in rproc_boot()
2039 mutex_unlock(&rproc->lock); in rproc_boot()
2045 * rproc_shutdown() - power off the remote processor
2058 * - we're not decrementing the rproc's refcount, only the power refcount.
2065 struct device *dev = &rproc->dev; in rproc_shutdown()
2068 ret = mutex_lock_interruptible(&rproc->lock); in rproc_shutdown()
2070 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_shutdown()
2075 if (!atomic_dec_and_test(&rproc->power)) in rproc_shutdown()
2080 atomic_inc(&rproc->power); in rproc_shutdown()
2093 kfree(rproc->cached_table); in rproc_shutdown()
2094 rproc->cached_table = NULL; in rproc_shutdown()
2095 rproc->table_ptr = NULL; in rproc_shutdown()
2097 mutex_unlock(&rproc->lock); in rproc_shutdown()
2102 * rproc_detach() - Detach the remote processor from the
2123 struct device *dev = &rproc->dev; in rproc_detach()
2126 ret = mutex_lock_interruptible(&rproc->lock); in rproc_detach()
2128 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_detach()
2133 if (!atomic_dec_and_test(&rproc->power)) { in rproc_detach()
2140 atomic_inc(&rproc->power); in rproc_detach()
2153 kfree(rproc->cached_table); in rproc_detach()
2154 rproc->cached_table = NULL; in rproc_detach()
2155 rproc->table_ptr = NULL; in rproc_detach()
2157 mutex_unlock(&rproc->lock); in rproc_detach()
2163 * rproc_get_by_phandle() - find a remote processor by phandle
2186 if (r->dev.parent && r->dev.parent->of_node == np) { in rproc_get_by_phandle()
2188 if (!try_module_get(r->dev.parent->driver->owner)) { in rproc_get_by_phandle()
2189 dev_err(&r->dev, "can't get owner\n"); in rproc_get_by_phandle()
2194 get_device(&rproc->dev); in rproc_get_by_phandle()
2213 * rproc_set_firmware() - assign a new firmware
2214 * @rproc: rproc handle to which the new firmware is being assigned
2215 * @fw_name: new firmware name to be assigned
2218 * firmware name that is different from the default name used during remoteproc
2220 * only sets the firmware name used for a subsequent boot. This function
2223 * This allows either the userspace to configure a different name through
2224 * sysfs or a kernel-level remoteproc or a remoteproc client driver to set
2225 * a specific firmware when it is controlling the boot and shutdown of the
2237 return -EINVAL; in rproc_set_firmware()
2239 dev = rproc->dev.parent; in rproc_set_firmware()
2241 ret = mutex_lock_interruptible(&rproc->lock); in rproc_set_firmware()
2243 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_set_firmware()
2244 return -EINVAL; in rproc_set_firmware()
2247 if (rproc->state != RPROC_OFFLINE) { in rproc_set_firmware()
2248 dev_err(dev, "can't change firmware while running\n"); in rproc_set_firmware()
2249 ret = -EBUSY; in rproc_set_firmware()
2255 dev_err(dev, "can't provide empty string for firmware name\n"); in rproc_set_firmware()
2256 ret = -EINVAL; in rproc_set_firmware()
2262 ret = -ENOMEM; in rproc_set_firmware()
2266 kfree_const(rproc->firmware); in rproc_set_firmware()
2267 rproc->firmware = p; in rproc_set_firmware()
2270 mutex_unlock(&rproc->lock); in rproc_set_firmware()
2277 switch (rproc->state) { in rproc_validate()
2283 if (!rproc->ops->start) in rproc_validate()
2284 return -EINVAL; in rproc_validate()
2291 if (!rproc->ops->attach) in rproc_validate()
2292 return -EINVAL; in rproc_validate()
2298 if (rproc->cached_table) in rproc_validate()
2299 return -EINVAL; in rproc_validate()
2306 return -EINVAL; in rproc_validate()
2313 * rproc_add() - register a remote processor
2319 * This is called by the platform-specific rproc implementation, whenever
2322 * Note: this function initiates an asynchronous firmware loading
2324 * firmware.
2334 struct device *dev = &rproc->dev; in rproc_add()
2352 dev_info(dev, "%s is available\n", rproc->name); in rproc_add()
2357 /* if rproc is marked always-on, request it to boot */ in rproc_add()
2358 if (rproc->auto_boot) { in rproc_add()
2366 list_add_rcu(&rproc->node, &rproc_list); in rproc_add()
2386 * devm_rproc_add() - resource managed rproc_add()
2408 * rproc_type_release() - release a remote processor instance
2420 dev_info(&rproc->dev, "releasing %s\n", rproc->name); in rproc_type_release()
2422 idr_destroy(&rproc->notifyids); in rproc_type_release()
2424 if (rproc->index >= 0) in rproc_type_release()
2425 ida_simple_remove(&rproc_dev_index, rproc->index); in rproc_type_release()
2427 kfree_const(rproc->firmware); in rproc_type_release()
2428 kfree_const(rproc->name); in rproc_type_release()
2429 kfree(rproc->ops); in rproc_type_release()
2434 .name = "remoteproc",
2439 const char *name, const char *firmware) in rproc_alloc_firmware() argument
2444 * Allocate a firmware name if the caller gave us one to work in rproc_alloc_firmware()
2447 if (firmware) in rproc_alloc_firmware()
2448 p = kstrdup_const(firmware, GFP_KERNEL); in rproc_alloc_firmware()
2450 p = kasprintf(GFP_KERNEL, "rproc-%s-fw", name); in rproc_alloc_firmware()
2453 return -ENOMEM; in rproc_alloc_firmware()
2455 rproc->firmware = p; in rproc_alloc_firmware()
2462 rproc->ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL); in rproc_alloc_ops()
2463 if (!rproc->ops) in rproc_alloc_ops()
2464 return -ENOMEM; in rproc_alloc_ops()
2467 if (!rproc->ops->coredump) in rproc_alloc_ops()
2468 rproc->ops->coredump = rproc_coredump; in rproc_alloc_ops()
2470 if (rproc->ops->load) in rproc_alloc_ops()
2474 rproc->ops->load = rproc_elf_load_segments; in rproc_alloc_ops()
2475 rproc->ops->parse_fw = rproc_elf_load_rsc_table; in rproc_alloc_ops()
2476 rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table; in rproc_alloc_ops()
2477 rproc->ops->sanity_check = rproc_elf_sanity_check; in rproc_alloc_ops()
2478 rproc->ops->get_boot_addr = rproc_elf_get_boot_addr; in rproc_alloc_ops()
2484 * rproc_alloc() - allocate a remote processor handle
2486 * @name: name of this remote processor
2487 * @ops: platform-specific handlers (mainly start/stop)
2488 * @firmware: name of firmware file to load, can be NULL
2492 * it yet. if @firmware is NULL, a default name is used.
2506 struct rproc *rproc_alloc(struct device *dev, const char *name, in rproc_alloc() argument
2508 const char *firmware, int len) in rproc_alloc() argument
2512 if (!dev || !name || !ops) in rproc_alloc()
2519 rproc->priv = &rproc[1]; in rproc_alloc()
2520 rproc->auto_boot = true; in rproc_alloc()
2521 rproc->elf_class = ELFCLASSNONE; in rproc_alloc()
2522 rproc->elf_machine = EM_NONE; in rproc_alloc()
2524 device_initialize(&rproc->dev); in rproc_alloc()
2525 rproc->dev.parent = dev; in rproc_alloc()
2526 rproc->dev.type = &rproc_type; in rproc_alloc()
2527 rproc->dev.class = &rproc_class; in rproc_alloc()
2528 rproc->dev.driver_data = rproc; in rproc_alloc()
2529 idr_init(&rproc->notifyids); in rproc_alloc()
2531 rproc->name = kstrdup_const(name, GFP_KERNEL); in rproc_alloc()
2532 if (!rproc->name) in rproc_alloc()
2535 if (rproc_alloc_firmware(rproc, name, firmware)) in rproc_alloc()
2541 /* Assign a unique device index and name */ in rproc_alloc()
2542 rproc->index = ida_simple_get(&rproc_dev_index, 0, 0, GFP_KERNEL); in rproc_alloc()
2543 if (rproc->index < 0) { in rproc_alloc()
2544 dev_err(dev, "ida_simple_get failed: %d\n", rproc->index); in rproc_alloc()
2548 dev_set_name(&rproc->dev, "remoteproc%d", rproc->index); in rproc_alloc()
2550 atomic_set(&rproc->power, 0); in rproc_alloc()
2552 mutex_init(&rproc->lock); in rproc_alloc()
2554 INIT_LIST_HEAD(&rproc->carveouts); in rproc_alloc()
2555 INIT_LIST_HEAD(&rproc->mappings); in rproc_alloc()
2556 INIT_LIST_HEAD(&rproc->traces); in rproc_alloc()
2557 INIT_LIST_HEAD(&rproc->rvdevs); in rproc_alloc()
2558 INIT_LIST_HEAD(&rproc->subdevs); in rproc_alloc()
2559 INIT_LIST_HEAD(&rproc->dump_segments); in rproc_alloc()
2561 INIT_WORK(&rproc->crash_handler, rproc_crash_handler_work); in rproc_alloc()
2563 rproc->state = RPROC_OFFLINE; in rproc_alloc()
2568 put_device(&rproc->dev); in rproc_alloc()
2574 * rproc_free() - unroll rproc_alloc()
2584 put_device(&rproc->dev); in rproc_free()
2589 * rproc_put() - release rproc reference
2599 module_put(rproc->dev.parent->driver->owner); in rproc_put()
2600 put_device(&rproc->dev); in rproc_put()
2605 * rproc_del() - unregister a remote processor
2617 * Return: 0 on success and -EINVAL if @rproc isn't valid
2622 return -EINVAL; in rproc_del()
2624 /* TODO: make sure this works with rproc->power > 1 */ in rproc_del()
2627 mutex_lock(&rproc->lock); in rproc_del()
2628 rproc->state = RPROC_DELETED; in rproc_del()
2629 mutex_unlock(&rproc->lock); in rproc_del()
2635 list_del_rcu(&rproc->node); in rproc_del()
2641 device_del(&rproc->dev); in rproc_del()
2654 * devm_rproc_alloc() - resource managed rproc_alloc()
2656 * @name: name of this remote processor
2657 * @ops: platform-specific handlers (mainly start/stop)
2658 * @firmware: name of firmware file to load, can be NULL
2666 struct rproc *devm_rproc_alloc(struct device *dev, const char *name, in devm_rproc_alloc() argument
2668 const char *firmware, int len) in devm_rproc_alloc() argument
2676 rproc = rproc_alloc(dev, name, ops, firmware, len); in devm_rproc_alloc()
2689 * rproc_add_subdev() - add a subdevice to a remoteproc
2697 list_add_tail(&subdev->node, &rproc->subdevs); in rproc_add_subdev()
2702 * rproc_remove_subdev() - remove a subdevice from a remoteproc
2708 list_del(&subdev->node); in rproc_remove_subdev()
2713 * rproc_get_by_child() - acquire rproc handle of @dev's ancestor
2720 for (dev = dev->parent; dev; dev = dev->parent) { in rproc_get_by_child()
2721 if (dev->type == &rproc_type) in rproc_get_by_child()
2722 return dev->driver_data; in rproc_get_by_child()
2730 * rproc_report_crash() - rproc crash reporter function
2734 * This function must be called every time a crash is detected by the low-level
2736 * non-remoteproc driver.
2748 pm_stay_awake(rproc->dev.parent); in rproc_report_crash()
2750 dev_err(&rproc->dev, "crash detected in %s: type %s\n", in rproc_report_crash()
2751 rproc->name, rproc_crash_to_string(type)); in rproc_report_crash()
2754 queue_work(system_freezable_wq, &rproc->crash_handler); in rproc_report_crash()
2767 if (!rproc->ops->panic) in rproc_panic_handler()
2770 if (rproc->state != RPROC_RUNNING && in rproc_panic_handler()
2771 rproc->state != RPROC_ATTACHED) in rproc_panic_handler()
2774 d = rproc->ops->panic(rproc); in rproc_panic_handler()