Lines Matching full:rproc
51 typedef int (*rproc_handle_resource_t)(struct rproc *rproc,
54 static int rproc_alloc_carveout(struct rproc *rproc,
56 static int rproc_release_carveout(struct rproc *rproc,
87 struct rproc *rproc = token; in rproc_iommu_fault() local
91 rproc_report_crash(rproc, RPROC_MMUFAULT); in rproc_iommu_fault()
100 static int rproc_enable_iommu(struct rproc *rproc) in rproc_enable_iommu() argument
103 struct device *dev = rproc->dev.parent; in rproc_enable_iommu()
106 if (!rproc->has_iommu) { in rproc_enable_iommu()
117 iommu_set_fault_handler(domain, rproc_iommu_fault, rproc); in rproc_enable_iommu()
125 rproc->domain = domain; in rproc_enable_iommu()
134 static void rproc_disable_iommu(struct rproc *rproc) in rproc_disable_iommu() argument
136 struct iommu_domain *domain = rproc->domain; in rproc_disable_iommu()
137 struct device *dev = rproc->dev.parent; in rproc_disable_iommu()
165 * @rproc: handle of a remote processor
187 * Note: phys_to_virt(iommu_iova_to_phys(rproc->domain, da)) will work too,
192 void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) in rproc_da_to_va() argument
197 if (rproc->ops->da_to_va) { in rproc_da_to_va()
198 ptr = rproc->ops->da_to_va(rproc, da, len); in rproc_da_to_va()
203 list_for_each_entry(carveout, &rproc->carveouts, node) { in rproc_da_to_va()
230 * @rproc: handle of a remote processor
235 * (physically contiguous memory regions) before rproc firmware loading and
248 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...) in rproc_find_carveout_by_name() argument
261 list_for_each_entry(carveout, &rproc->carveouts, node) { in rproc_find_carveout_by_name()
274 * @rproc: handle of a remote processor
286 static int rproc_check_carveout_da(struct rproc *rproc, in rproc_check_carveout_da() argument
289 struct device *dev = &rproc->dev; in rproc_check_carveout_da()
323 struct rproc *rproc = rvdev->rproc; in rproc_alloc_vring() local
324 struct device *dev = &rproc->dev; in rproc_alloc_vring()
334 rsc = (void *)rproc->table_ptr + rvdev->rsc_offset; in rproc_alloc_vring()
337 mem = rproc_find_carveout_by_name(rproc, "vdev%dvring%d", rvdev->index, in rproc_alloc_vring()
340 if (rproc_check_carveout_da(rproc, mem, rsc->vring[i].da, size)) in rproc_alloc_vring()
355 rproc_add_carveout(rproc, mem); in rproc_alloc_vring()
359 * Assign an rproc-wide unique index for this vring in rproc_alloc_vring()
363 ret = idr_alloc(&rproc->notifyids, rvring, 0, 0, GFP_KERNEL); in rproc_alloc_vring()
371 if (notifyid > rproc->max_notifyid) in rproc_alloc_vring()
372 rproc->max_notifyid = notifyid; in rproc_alloc_vring()
376 /* Let the rproc know the notifyid of this vring.*/ in rproc_alloc_vring()
384 struct rproc *rproc = rvdev->rproc; in rproc_parse_vring() local
385 struct device *dev = &rproc->dev; in rproc_parse_vring()
408 struct rproc *rproc = rvring->rvdev->rproc; in rproc_free_vring() local
412 idr_remove(&rproc->notifyids, rvring->notifyid); in rproc_free_vring()
417 * such and as per rproc_stop(), rproc->table_ptr points to the cached in rproc_free_vring()
418 * resource table (rproc->cached_table). The cached resource table is in rproc_free_vring()
425 if (rproc->table_ptr) { in rproc_free_vring()
426 rsc = (void *)rproc->table_ptr + rvring->rvdev->rsc_offset; in rproc_free_vring()
484 * @rproc: the remote processor
510 static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc, in rproc_handle_vdev() argument
513 struct device *dev = &rproc->dev; in rproc_handle_vdev()
547 rvdev->rproc = rproc; in rproc_handle_vdev()
548 rvdev->index = rproc->nb_vdev++; in rproc_handle_vdev()
552 rvdev->dev.parent = &rproc->dev; in rproc_handle_vdev()
553 ret = copy_dma_range_map(&rvdev->dev, rproc->dev.parent); in rproc_handle_vdev()
566 set_dma_ops(&rvdev->dev, get_dma_ops(rproc->dev.parent)); in rproc_handle_vdev()
569 dma_get_mask(rproc->dev.parent)); in rproc_handle_vdev()
573 dma_get_mask(rproc->dev.parent), ret); in rproc_handle_vdev()
593 list_add_tail(&rvdev->node, &rproc->rvdevs); in rproc_handle_vdev()
598 rproc_add_subdev(rproc, &rvdev->subdev); in rproc_handle_vdev()
614 struct rproc *rproc = rvdev->rproc; in rproc_vdev_release() local
622 rproc_remove_subdev(rproc, &rvdev->subdev); in rproc_vdev_release()
629 * @rproc: the remote processor
644 static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc, in rproc_handle_trace() argument
648 struct device *dev = &rproc->dev; in rproc_handle_trace()
670 /* set pointer on rproc device */ in rproc_handle_trace()
671 trace->rproc = rproc; in rproc_handle_trace()
674 snprintf(name, sizeof(name), "trace%d", rproc->num_traces); in rproc_handle_trace()
677 trace->tfile = rproc_create_trace_file(name, rproc, trace); in rproc_handle_trace()
683 list_add_tail(&trace->node, &rproc->traces); in rproc_handle_trace()
685 rproc->num_traces++; in rproc_handle_trace()
695 * @rproc: remote processor handle
719 static int rproc_handle_devmem(struct rproc *rproc, struct fw_rsc_devmem *rsc, in rproc_handle_devmem() argument
723 struct device *dev = &rproc->dev; in rproc_handle_devmem()
727 if (!rproc->domain) in rproc_handle_devmem()
745 ret = iommu_map(rproc->domain, rsc->da, rsc->pa, rsc->len, rsc->flags); in rproc_handle_devmem()
760 list_add_tail(&mapping->node, &rproc->mappings); in rproc_handle_devmem()
774 * @rproc: rproc handle
780 static int rproc_alloc_carveout(struct rproc *rproc, in rproc_alloc_carveout() argument
784 struct device *dev = &rproc->dev; in rproc_alloc_carveout()
800 if (mem->da != FW_RSC_ADDR_ANY && !rproc->domain) { in rproc_alloc_carveout()
829 if (mem->da != FW_RSC_ADDR_ANY && rproc->domain) { in rproc_alloc_carveout()
836 ret = iommu_map(rproc->domain, mem->da, dma, mem->len, in rproc_alloc_carveout()
852 list_add_tail(&mapping->node, &rproc->mappings); in rproc_alloc_carveout()
880 * @rproc: rproc handle
884 * rproc_alloc_carveout() function by @rproc.
886 static int rproc_release_carveout(struct rproc *rproc, in rproc_release_carveout() argument
889 struct device *dev = &rproc->dev; in rproc_release_carveout()
898 * @rproc: rproc handle
912 * needed to map it (in case @rproc is using an IOMMU). Reducing the TLB
915 static int rproc_handle_carveout(struct rproc *rproc, in rproc_handle_carveout() argument
920 struct device *dev = &rproc->dev; in rproc_handle_carveout()
940 carveout = rproc_find_carveout_by_name(rproc, rsc->name); in rproc_handle_carveout()
949 if (rproc_check_carveout_da(rproc, carveout, rsc->da, rsc->len)) in rproc_handle_carveout()
970 rproc_add_carveout(rproc, carveout); in rproc_handle_carveout()
977 * @rproc: rproc handle
980 * This function registers specified memory entry in @rproc carveouts list.
983 void rproc_add_carveout(struct rproc *rproc, struct rproc_mem_entry *mem) in rproc_add_carveout() argument
985 list_add_tail(&mem->node, &rproc->carveouts); in rproc_add_carveout()
1007 int (*alloc)(struct rproc *, struct rproc_mem_entry *), in rproc_mem_entry_init() argument
1008 int (*release)(struct rproc *, struct rproc_mem_entry *), in rproc_mem_entry_init() argument
1074 * @dev: pointer on device struct representing a rproc
1107 static int rproc_handle_resources(struct rproc *rproc, in rproc_handle_resources() argument
1110 struct device *dev = &rproc->dev; in rproc_handle_resources()
1114 if (!rproc->table_ptr) in rproc_handle_resources()
1117 for (i = 0; i < rproc->table_ptr->num; i++) { in rproc_handle_resources()
1118 int offset = rproc->table_ptr->offset[i]; in rproc_handle_resources()
1119 struct fw_rsc_hdr *hdr = (void *)rproc->table_ptr + offset; in rproc_handle_resources()
1120 int avail = rproc->table_sz - offset - sizeof(*hdr); in rproc_handle_resources()
1133 ret = rproc_handle_rsc(rproc, hdr->type, rsc, in rproc_handle_resources()
1154 ret = handler(rproc, rsc, offset + sizeof(*hdr), avail); in rproc_handle_resources()
1162 static int rproc_prepare_subdevices(struct rproc *rproc) in rproc_prepare_subdevices() argument
1167 list_for_each_entry(subdev, &rproc->subdevs, node) { in rproc_prepare_subdevices()
1178 list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) { in rproc_prepare_subdevices()
1186 static int rproc_start_subdevices(struct rproc *rproc) in rproc_start_subdevices() argument
1191 list_for_each_entry(subdev, &rproc->subdevs, node) { in rproc_start_subdevices()
1202 list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) { in rproc_start_subdevices()
1210 static void rproc_stop_subdevices(struct rproc *rproc, bool crashed) in rproc_stop_subdevices() argument
1214 list_for_each_entry_reverse(subdev, &rproc->subdevs, node) { in rproc_stop_subdevices()
1220 static void rproc_unprepare_subdevices(struct rproc *rproc) in rproc_unprepare_subdevices() argument
1224 list_for_each_entry_reverse(subdev, &rproc->subdevs, node) { in rproc_unprepare_subdevices()
1233 * @rproc: the remote processor handle
1241 static int rproc_alloc_registered_carveouts(struct rproc *rproc) in rproc_alloc_registered_carveouts() argument
1245 struct device *dev = &rproc->dev; in rproc_alloc_registered_carveouts()
1249 list_for_each_entry_safe(entry, tmp, &rproc->carveouts, node) { in rproc_alloc_registered_carveouts()
1251 ret = entry->alloc(rproc, entry); in rproc_alloc_registered_carveouts()
1261 rsc = (void *)rproc->table_ptr + entry->rsc_offset; in rproc_alloc_registered_carveouts()
1303 * @rproc: rproc handle
1305 * This function will free all resources acquired for @rproc, and it
1306 * is called whenever @rproc either shuts down or fails to boot.
1308 void rproc_resource_cleanup(struct rproc *rproc) in rproc_resource_cleanup() argument
1313 struct device *dev = &rproc->dev; in rproc_resource_cleanup()
1316 list_for_each_entry_safe(trace, ttmp, &rproc->traces, node) { in rproc_resource_cleanup()
1318 rproc->num_traces--; in rproc_resource_cleanup()
1324 list_for_each_entry_safe(entry, tmp, &rproc->mappings, node) { in rproc_resource_cleanup()
1327 unmapped = iommu_unmap(rproc->domain, entry->da, entry->len); in rproc_resource_cleanup()
1339 list_for_each_entry_safe(entry, tmp, &rproc->carveouts, node) { in rproc_resource_cleanup()
1341 entry->release(rproc, entry); in rproc_resource_cleanup()
1347 list_for_each_entry_safe(rvdev, rvtmp, &rproc->rvdevs, node) in rproc_resource_cleanup()
1350 rproc_coredump_cleanup(rproc); in rproc_resource_cleanup()
1354 static int rproc_start(struct rproc *rproc, const struct firmware *fw) in rproc_start() argument
1357 struct device *dev = &rproc->dev; in rproc_start()
1361 ret = rproc_load_segments(rproc, fw); in rproc_start()
1368 * The starting device has been given the rproc->cached_table as the in rproc_start()
1375 loaded_table = rproc_find_loaded_rsc_table(rproc, fw); in rproc_start()
1377 memcpy(loaded_table, rproc->cached_table, rproc->table_sz); in rproc_start()
1378 rproc->table_ptr = loaded_table; in rproc_start()
1381 ret = rproc_prepare_subdevices(rproc); in rproc_start()
1384 rproc->name, ret); in rproc_start()
1389 ret = rproc->ops->start(rproc); in rproc_start()
1391 dev_err(dev, "can't start rproc %s: %d\n", rproc->name, ret); in rproc_start()
1396 ret = rproc_start_subdevices(rproc); in rproc_start()
1399 rproc->name, ret); in rproc_start()
1403 rproc->state = RPROC_RUNNING; in rproc_start()
1405 dev_info(dev, "remote processor %s is now up\n", rproc->name); in rproc_start()
1410 rproc->ops->stop(rproc); in rproc_start()
1412 rproc_unprepare_subdevices(rproc); in rproc_start()
1414 rproc->table_ptr = rproc->cached_table; in rproc_start()
1419 static int rproc_attach(struct rproc *rproc) in rproc_attach() argument
1421 struct device *dev = &rproc->dev; in rproc_attach()
1424 ret = rproc_prepare_subdevices(rproc); in rproc_attach()
1427 rproc->name, ret); in rproc_attach()
1432 ret = rproc_attach_device(rproc); in rproc_attach()
1434 dev_err(dev, "can't attach to rproc %s: %d\n", in rproc_attach()
1435 rproc->name, ret); in rproc_attach()
1440 ret = rproc_start_subdevices(rproc); in rproc_attach()
1443 rproc->name, ret); in rproc_attach()
1447 rproc->state = RPROC_RUNNING; in rproc_attach()
1449 dev_info(dev, "remote processor %s is now attached\n", rproc->name); in rproc_attach()
1454 rproc->ops->stop(rproc); in rproc_attach()
1456 rproc_unprepare_subdevices(rproc); in rproc_attach()
1464 static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) in rproc_fw_boot() argument
1466 struct device *dev = &rproc->dev; in rproc_fw_boot()
1467 const char *name = rproc->firmware; in rproc_fw_boot()
1470 ret = rproc_fw_sanity_check(rproc, fw); in rproc_fw_boot()
1477 * if enabling an IOMMU isn't relevant for this rproc, this is in rproc_fw_boot()
1480 ret = rproc_enable_iommu(rproc); in rproc_fw_boot()
1486 /* Prepare rproc for firmware loading if needed */ in rproc_fw_boot()
1487 ret = rproc_prepare_device(rproc); in rproc_fw_boot()
1489 dev_err(dev, "can't prepare rproc %s: %d\n", rproc->name, ret); in rproc_fw_boot()
1493 rproc->bootaddr = rproc_get_boot_addr(rproc, fw); in rproc_fw_boot()
1496 ret = rproc_parse_fw(rproc, fw); in rproc_fw_boot()
1501 rproc->max_notifyid = -1; in rproc_fw_boot()
1504 rproc->nb_vdev = 0; in rproc_fw_boot()
1506 /* handle fw resources which are required to boot rproc */ in rproc_fw_boot()
1507 ret = rproc_handle_resources(rproc, rproc_loading_handlers); in rproc_fw_boot()
1513 /* Allocate carveout resources associated to rproc */ in rproc_fw_boot()
1514 ret = rproc_alloc_registered_carveouts(rproc); in rproc_fw_boot()
1521 ret = rproc_start(rproc, fw); in rproc_fw_boot()
1528 rproc_resource_cleanup(rproc); in rproc_fw_boot()
1529 kfree(rproc->cached_table); in rproc_fw_boot()
1530 rproc->cached_table = NULL; in rproc_fw_boot()
1531 rproc->table_ptr = NULL; in rproc_fw_boot()
1534 rproc_unprepare_device(rproc); in rproc_fw_boot()
1536 rproc_disable_iommu(rproc); in rproc_fw_boot()
1544 static int rproc_actuate(struct rproc *rproc) in rproc_actuate() argument
1546 struct device *dev = &rproc->dev; in rproc_actuate()
1550 * if enabling an IOMMU isn't relevant for this rproc, this is in rproc_actuate()
1553 ret = rproc_enable_iommu(rproc); in rproc_actuate()
1560 rproc->max_notifyid = -1; in rproc_actuate()
1563 rproc->nb_vdev = 0; in rproc_actuate()
1568 * we expect the platform driver to properly set rproc->table_ptr. in rproc_actuate()
1570 ret = rproc_handle_resources(rproc, rproc_loading_handlers); in rproc_actuate()
1576 /* Allocate carveout resources associated to rproc */ in rproc_actuate()
1577 ret = rproc_alloc_registered_carveouts(rproc); in rproc_actuate()
1584 ret = rproc_attach(rproc); in rproc_actuate()
1591 rproc_resource_cleanup(rproc); in rproc_actuate()
1593 rproc_disable_iommu(rproc); in rproc_actuate()
1607 struct rproc *rproc = context; in rproc_auto_boot_callback() local
1609 rproc_boot(rproc); in rproc_auto_boot_callback()
1614 static int rproc_trigger_auto_boot(struct rproc *rproc) in rproc_trigger_auto_boot() argument
1624 if (rproc->state == RPROC_DETACHED) in rproc_trigger_auto_boot()
1625 return rproc_boot(rproc); in rproc_trigger_auto_boot()
1632 rproc->firmware, &rproc->dev, GFP_KERNEL, in rproc_trigger_auto_boot()
1633 rproc, rproc_auto_boot_callback); in rproc_trigger_auto_boot()
1635 dev_err(&rproc->dev, "request_firmware_nowait err: %d\n", ret); in rproc_trigger_auto_boot()
1640 static int rproc_stop(struct rproc *rproc, bool crashed) in rproc_stop() argument
1642 struct device *dev = &rproc->dev; in rproc_stop()
1646 rproc_stop_subdevices(rproc, crashed); in rproc_stop()
1649 rproc->table_ptr = rproc->cached_table; in rproc_stop()
1652 ret = rproc->ops->stop(rproc); in rproc_stop()
1654 dev_err(dev, "can't stop rproc: %d\n", ret); in rproc_stop()
1658 rproc_unprepare_subdevices(rproc); in rproc_stop()
1660 rproc->state = RPROC_OFFLINE; in rproc_stop()
1668 rproc->autonomous = false; in rproc_stop()
1670 dev_info(dev, "stopped remote processor %s\n", rproc->name); in rproc_stop()
1678 * @rproc: the remote processor
1686 int rproc_trigger_recovery(struct rproc *rproc) in rproc_trigger_recovery() argument
1689 struct device *dev = &rproc->dev; in rproc_trigger_recovery()
1692 ret = mutex_lock_interruptible(&rproc->lock); in rproc_trigger_recovery()
1697 if (rproc->state != RPROC_CRASHED) in rproc_trigger_recovery()
1700 dev_err(dev, "recovering %s\n", rproc->name); in rproc_trigger_recovery()
1702 ret = rproc_stop(rproc, true); in rproc_trigger_recovery()
1707 rproc_coredump(rproc); in rproc_trigger_recovery()
1710 ret = request_firmware(&firmware_p, rproc->firmware, dev); in rproc_trigger_recovery()
1717 ret = rproc_start(rproc, firmware_p); in rproc_trigger_recovery()
1722 mutex_unlock(&rproc->lock); in rproc_trigger_recovery()
1735 struct rproc *rproc = container_of(work, struct rproc, crash_handler); in rproc_crash_handler_work() local
1736 struct device *dev = &rproc->dev; in rproc_crash_handler_work()
1740 mutex_lock(&rproc->lock); in rproc_crash_handler_work()
1742 if (rproc->state == RPROC_CRASHED || rproc->state == RPROC_OFFLINE) { in rproc_crash_handler_work()
1744 mutex_unlock(&rproc->lock); in rproc_crash_handler_work()
1748 rproc->state = RPROC_CRASHED; in rproc_crash_handler_work()
1749 dev_err(dev, "handling crash #%u in %s\n", ++rproc->crash_cnt, in rproc_crash_handler_work()
1750 rproc->name); in rproc_crash_handler_work()
1752 mutex_unlock(&rproc->lock); in rproc_crash_handler_work()
1754 if (!rproc->recovery_disabled) in rproc_crash_handler_work()
1755 rproc_trigger_recovery(rproc); in rproc_crash_handler_work()
1757 pm_relax(rproc->dev.parent); in rproc_crash_handler_work()
1762 * @rproc: handle of a remote processor
1771 int rproc_boot(struct rproc *rproc) in rproc_boot() argument
1777 if (!rproc) { in rproc_boot()
1778 pr_err("invalid rproc handle\n"); in rproc_boot()
1782 dev = &rproc->dev; in rproc_boot()
1784 ret = mutex_lock_interruptible(&rproc->lock); in rproc_boot()
1786 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_boot()
1790 if (rproc->state == RPROC_DELETED) { in rproc_boot()
1792 dev_err(dev, "can't boot deleted rproc %s\n", rproc->name); in rproc_boot()
1796 /* skip the boot or attach process if rproc is already powered up */ in rproc_boot()
1797 if (atomic_inc_return(&rproc->power) > 1) { in rproc_boot()
1802 if (rproc->state == RPROC_DETACHED) { in rproc_boot()
1803 dev_info(dev, "attaching to %s\n", rproc->name); in rproc_boot()
1805 ret = rproc_actuate(rproc); in rproc_boot()
1807 dev_info(dev, "powering up %s\n", rproc->name); in rproc_boot()
1810 ret = request_firmware(&firmware_p, rproc->firmware, dev); in rproc_boot()
1816 ret = rproc_fw_boot(rproc, firmware_p); in rproc_boot()
1823 atomic_dec(&rproc->power); in rproc_boot()
1825 mutex_unlock(&rproc->lock); in rproc_boot()
1832 * @rproc: the remote processor
1836 * In case @rproc is still being used by an additional user(s), then
1844 * - we're not decrementing the rproc's refcount, only the power refcount.
1845 * which means that the @rproc handle stays valid even after rproc_shutdown()
1849 void rproc_shutdown(struct rproc *rproc) in rproc_shutdown() argument
1851 struct device *dev = &rproc->dev; in rproc_shutdown()
1854 ret = mutex_lock_interruptible(&rproc->lock); in rproc_shutdown()
1856 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); in rproc_shutdown()
1861 if (!atomic_dec_and_test(&rproc->power)) in rproc_shutdown()
1864 ret = rproc_stop(rproc, false); in rproc_shutdown()
1866 atomic_inc(&rproc->power); in rproc_shutdown()
1871 rproc_resource_cleanup(rproc); in rproc_shutdown()
1874 rproc_unprepare_device(rproc); in rproc_shutdown()
1876 rproc_disable_iommu(rproc); in rproc_shutdown()
1879 kfree(rproc->cached_table); in rproc_shutdown()
1880 rproc->cached_table = NULL; in rproc_shutdown()
1881 rproc->table_ptr = NULL; in rproc_shutdown()
1883 mutex_unlock(&rproc->lock); in rproc_shutdown()
1889 * @phandle: phandle to the rproc
1891 * Finds an rproc handle using the remote processor's phandle, and then
1892 * return a handle to the rproc.
1895 * use rproc_put() to decrement it back once rproc isn't needed anymore.
1897 * Returns the rproc handle on success, and NULL on failure.
1900 struct rproc *rproc_get_by_phandle(phandle phandle) in rproc_get_by_phandle()
1902 struct rproc *rproc = NULL, *r; in rproc_get_by_phandle() local
1918 rproc = r; in rproc_get_by_phandle()
1919 get_device(&rproc->dev); in rproc_get_by_phandle()
1927 return rproc; in rproc_get_by_phandle()
1930 struct rproc *rproc_get_by_phandle(phandle phandle) in rproc_get_by_phandle()
1937 static int rproc_validate(struct rproc *rproc) in rproc_validate() argument
1939 switch (rproc->state) { in rproc_validate()
1945 if (!rproc->ops->start) in rproc_validate()
1953 if (!rproc->ops->attach) in rproc_validate()
1960 if (rproc->cached_table) in rproc_validate()
1976 * @rproc: the remote processor handle to register
1978 * Registers @rproc with the remoteproc framework, after it has been
1981 * This is called by the platform-specific rproc implementation, whenever
1987 * context, which will look for virtio devices supported by the rproc's
1994 int rproc_add(struct rproc *rproc) in rproc_add() argument
1996 struct device *dev = &rproc->dev; in rproc_add()
2003 ret = rproc_validate(rproc); in rproc_add()
2007 dev_info(dev, "%s is available\n", rproc->name); in rproc_add()
2010 rproc_create_debug_dir(rproc); in rproc_add()
2013 ret = rproc_char_device_add(rproc); in rproc_add()
2024 if (rproc->state == RPROC_DETACHED) in rproc_add()
2025 rproc->autonomous = true; in rproc_add()
2027 /* if rproc is marked always-on, request it to boot */ in rproc_add()
2028 if (rproc->auto_boot) { in rproc_add()
2029 ret = rproc_trigger_auto_boot(rproc); in rproc_add()
2036 list_add_rcu(&rproc->node, &rproc_list); in rproc_add()
2043 static void devm_rproc_remove(void *rproc) in devm_rproc_remove() argument
2045 rproc_del(rproc); in devm_rproc_remove()
2051 * @rproc: the remote processor handle to register
2053 * This function performs like rproc_add() but the registered rproc device will
2058 int devm_rproc_add(struct device *dev, struct rproc *rproc) in devm_rproc_add() argument
2062 err = rproc_add(rproc); in devm_rproc_add()
2066 return devm_add_action_or_reset(dev, devm_rproc_remove, rproc); in devm_rproc_add()
2072 * @dev: the rproc's device
2081 struct rproc *rproc = container_of(dev, struct rproc, dev); in rproc_type_release() local
2083 dev_info(&rproc->dev, "releasing %s\n", rproc->name); in rproc_type_release()
2085 idr_destroy(&rproc->notifyids); in rproc_type_release()
2087 if (rproc->index >= 0) in rproc_type_release()
2088 ida_simple_remove(&rproc_dev_index, rproc->index); in rproc_type_release()
2090 kfree_const(rproc->firmware); in rproc_type_release()
2091 kfree_const(rproc->name); in rproc_type_release()
2092 kfree(rproc->ops); in rproc_type_release()
2093 kfree(rproc); in rproc_type_release()
2101 static int rproc_alloc_firmware(struct rproc *rproc, in rproc_alloc_firmware() argument
2113 p = kasprintf(GFP_KERNEL, "rproc-%s-fw", name); in rproc_alloc_firmware()
2118 rproc->firmware = p; in rproc_alloc_firmware()
2123 static int rproc_alloc_ops(struct rproc *rproc, const struct rproc_ops *ops) in rproc_alloc_ops() argument
2125 rproc->ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL); in rproc_alloc_ops()
2126 if (!rproc->ops) in rproc_alloc_ops()
2129 if (rproc->ops->load) in rproc_alloc_ops()
2133 rproc->ops->load = rproc_elf_load_segments; in rproc_alloc_ops()
2134 rproc->ops->parse_fw = rproc_elf_load_rsc_table; in rproc_alloc_ops()
2135 rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table; in rproc_alloc_ops()
2136 rproc->ops->sanity_check = rproc_elf_sanity_check; in rproc_alloc_ops()
2137 rproc->ops->get_boot_addr = rproc_elf_get_boot_addr; in rproc_alloc_ops()
2148 * @len: length of private data needed by the rproc driver (in bytes)
2153 * This function should be used by rproc implementations during initialization
2156 * After creating an rproc handle using this function, and when ready,
2160 * On success the new rproc is returned, and on failure, NULL.
2162 * Note: _never_ directly deallocate @rproc, even if it was not registered
2165 struct rproc *rproc_alloc(struct device *dev, const char *name, in rproc_alloc()
2169 struct rproc *rproc; in rproc_alloc() local
2174 rproc = kzalloc(sizeof(struct rproc) + len, GFP_KERNEL); in rproc_alloc()
2175 if (!rproc) in rproc_alloc()
2178 rproc->priv = &rproc[1]; in rproc_alloc()
2179 rproc->auto_boot = true; in rproc_alloc()
2180 rproc->elf_class = ELFCLASSNONE; in rproc_alloc()
2181 rproc->elf_machine = EM_NONE; in rproc_alloc()
2183 device_initialize(&rproc->dev); in rproc_alloc()
2184 rproc->dev.parent = dev; in rproc_alloc()
2185 rproc->dev.type = &rproc_type; in rproc_alloc()
2186 rproc->dev.class = &rproc_class; in rproc_alloc()
2187 rproc->dev.driver_data = rproc; in rproc_alloc()
2188 idr_init(&rproc->notifyids); in rproc_alloc()
2190 rproc->name = kstrdup_const(name, GFP_KERNEL); in rproc_alloc()
2191 if (!rproc->name) in rproc_alloc()
2194 if (rproc_alloc_firmware(rproc, name, firmware)) in rproc_alloc()
2197 if (rproc_alloc_ops(rproc, ops)) in rproc_alloc()
2201 rproc->index = ida_simple_get(&rproc_dev_index, 0, 0, GFP_KERNEL); in rproc_alloc()
2202 if (rproc->index < 0) { in rproc_alloc()
2203 dev_err(dev, "ida_simple_get failed: %d\n", rproc->index); in rproc_alloc()
2207 dev_set_name(&rproc->dev, "remoteproc%d", rproc->index); in rproc_alloc()
2209 atomic_set(&rproc->power, 0); in rproc_alloc()
2211 mutex_init(&rproc->lock); in rproc_alloc()
2213 INIT_LIST_HEAD(&rproc->carveouts); in rproc_alloc()
2214 INIT_LIST_HEAD(&rproc->mappings); in rproc_alloc()
2215 INIT_LIST_HEAD(&rproc->traces); in rproc_alloc()
2216 INIT_LIST_HEAD(&rproc->rvdevs); in rproc_alloc()
2217 INIT_LIST_HEAD(&rproc->subdevs); in rproc_alloc()
2218 INIT_LIST_HEAD(&rproc->dump_segments); in rproc_alloc()
2220 INIT_WORK(&rproc->crash_handler, rproc_crash_handler_work); in rproc_alloc()
2222 rproc->state = RPROC_OFFLINE; in rproc_alloc()
2224 return rproc; in rproc_alloc()
2227 put_device(&rproc->dev); in rproc_alloc()
2234 * @rproc: the remote processor handle
2236 * This function decrements the rproc dev refcount.
2238 * If no one holds any reference to rproc anymore, then its refcount would
2241 void rproc_free(struct rproc *rproc) in rproc_free() argument
2243 put_device(&rproc->dev); in rproc_free()
2248 * rproc_put() - release rproc reference
2249 * @rproc: the remote processor handle
2251 * This function decrements the rproc dev refcount.
2253 * If no one holds any reference to rproc anymore, then its refcount would
2256 void rproc_put(struct rproc *rproc) in rproc_put() argument
2258 module_put(rproc->dev.parent->driver->owner); in rproc_put()
2259 put_device(&rproc->dev); in rproc_put()
2265 * @rproc: rproc handle to unregister
2267 * This function should be called when the platform specific rproc
2268 * implementation decides to remove the rproc device. it should
2272 * After rproc_del() returns, @rproc isn't freed yet, because
2276 * Returns 0 on success and -EINVAL if @rproc isn't valid.
2278 int rproc_del(struct rproc *rproc) in rproc_del() argument
2280 if (!rproc) in rproc_del()
2283 /* if rproc is marked always-on, rproc_add() booted it */ in rproc_del()
2284 /* TODO: make sure this works with rproc->power > 1 */ in rproc_del()
2285 if (rproc->auto_boot) in rproc_del()
2286 rproc_shutdown(rproc); in rproc_del()
2288 mutex_lock(&rproc->lock); in rproc_del()
2289 rproc->state = RPROC_DELETED; in rproc_del()
2290 mutex_unlock(&rproc->lock); in rproc_del()
2292 rproc_delete_debug_dir(rproc); in rproc_del()
2293 rproc_char_device_remove(rproc); in rproc_del()
2295 /* the rproc is downref'ed as soon as it's removed from the klist */ in rproc_del()
2297 list_del_rcu(&rproc->node); in rproc_del()
2303 device_del(&rproc->dev); in rproc_del()
2311 rproc_free(*(struct rproc **)res); in devm_rproc_free()
2320 * @len: length of private data needed by the rproc driver (in bytes)
2322 * This function performs like rproc_alloc() but the acquired rproc device will
2325 * Returns: new rproc instance, or NULL on failure
2327 struct rproc *devm_rproc_alloc(struct device *dev, const char *name, in devm_rproc_alloc()
2331 struct rproc **ptr, *rproc; in devm_rproc_alloc() local
2337 rproc = rproc_alloc(dev, name, ops, firmware, len); in devm_rproc_alloc()
2338 if (rproc) { in devm_rproc_alloc()
2339 *ptr = rproc; in devm_rproc_alloc()
2345 return rproc; in devm_rproc_alloc()
2351 * @rproc: rproc handle to add the subdevice to
2356 void rproc_add_subdev(struct rproc *rproc, struct rproc_subdev *subdev) in rproc_add_subdev() argument
2358 list_add_tail(&subdev->node, &rproc->subdevs); in rproc_add_subdev()
2364 * @rproc: rproc handle to remove the subdevice from
2367 void rproc_remove_subdev(struct rproc *rproc, struct rproc_subdev *subdev) in rproc_remove_subdev() argument
2374 * rproc_get_by_child() - acquire rproc handle of @dev's ancestor
2377 * Returns the ancestor rproc instance, or NULL if not found.
2379 struct rproc *rproc_get_by_child(struct device *dev) in rproc_get_by_child()
2391 * rproc_report_crash() - rproc crash reporter function
2392 * @rproc: remote processor
2401 void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type) in rproc_report_crash() argument
2403 if (!rproc) { in rproc_report_crash()
2404 pr_err("NULL rproc pointer\n"); in rproc_report_crash()
2409 pm_stay_awake(rproc->dev.parent); in rproc_report_crash()
2411 dev_err(&rproc->dev, "crash detected in %s: type %s\n", in rproc_report_crash()
2412 rproc->name, rproc_crash_to_string(type)); in rproc_report_crash()
2415 schedule_work(&rproc->crash_handler); in rproc_report_crash()
2423 struct rproc *rproc; in rproc_panic_handler() local
2427 list_for_each_entry_rcu(rproc, &rproc_list, node) { in rproc_panic_handler()
2428 if (!rproc->ops->panic || rproc->state != RPROC_RUNNING) in rproc_panic_handler()
2431 d = rproc->ops->panic(rproc); in rproc_panic_handler()