| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Liam Girdwood | 1297 | 66.55% | 3 | 5.36% |
| Peter Ujfalusi | 319 | 16.37% | 18 | 32.14% |
| Pierre-Louis Bossart | 119 | 6.11% | 10 | 17.86% |
| Ranjani Sridharan | 70 | 3.59% | 11 | 19.64% |
| Rander Wang | 42 | 2.15% | 1 | 1.79% |
| Keyon Jie | 29 | 1.49% | 4 | 7.14% |
| Kai Vehmanen | 16 | 0.82% | 2 | 3.57% |
| Marcin Rajwa | 15 | 0.77% | 1 | 1.79% |
| Maarten Lankhorst | 13 | 0.67% | 1 | 1.79% |
| Daniel Baluta | 12 | 0.62% | 1 | 1.79% |
| Bard Liao | 6 | 0.31% | 1 | 1.79% |
| Wei Yongjun | 5 | 0.26% | 1 | 1.79% |
| Guennadi Liakhovetski | 4 | 0.21% | 1 | 1.79% |
| Marc Herbert | 2 | 0.10% | 1 | 1.79% |
| Total | 1949 | 56 |
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) // // This file is provided under a dual BSD/GPLv2 license. When using or // redistributing this file, you may do so under either license. // // Copyright(c) 2018 Intel Corporation. All rights reserved. // // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> // #include <linux/firmware.h> #include <linux/module.h> #include <sound/soc.h> #include <sound/sof.h> #include "sof-priv.h" #include "ops.h" #define CREATE_TRACE_POINTS #include <trace/events/sof.h> /* see SOF_DBG_ flags */ static int sof_core_debug = IS_ENABLED(CONFIG_SND_SOC_SOF_DEBUG_ENABLE_FIRMWARE_TRACE); module_param_named(sof_debug, sof_core_debug, int, 0444); MODULE_PARM_DESC(sof_debug, "SOF core debug options (0x0 all off)"); /* SOF defaults if not provided by the platform in ms */ #define TIMEOUT_DEFAULT_IPC_MS 500 #define TIMEOUT_DEFAULT_BOOT_MS 2000 /** * sof_debug_check_flag - check if a given flag(s) is set in sof_core_debug * @mask: Flag or combination of flags to check * * Returns true if all bits set in mask is also set in sof_core_debug, otherwise * false */ bool sof_debug_check_flag(int mask) { if ((sof_core_debug & mask) == mask) return true; return false; } EXPORT_SYMBOL(sof_debug_check_flag); /* * FW Panic/fault handling. */ struct sof_panic_msg { u32 id; const char *msg; }; /* standard FW panic types */ static const struct sof_panic_msg panic_msg[] = { {SOF_IPC_PANIC_MEM, "out of memory"}, {SOF_IPC_PANIC_WORK, "work subsystem init failed"}, {SOF_IPC_PANIC_IPC, "IPC subsystem init failed"}, {SOF_IPC_PANIC_ARCH, "arch init failed"}, {SOF_IPC_PANIC_PLATFORM, "platform init failed"}, {SOF_IPC_PANIC_TASK, "scheduler init failed"}, {SOF_IPC_PANIC_EXCEPTION, "runtime exception"}, {SOF_IPC_PANIC_DEADLOCK, "deadlock"}, {SOF_IPC_PANIC_STACK, "stack overflow"}, {SOF_IPC_PANIC_IDLE, "can't enter idle"}, {SOF_IPC_PANIC_WFI, "invalid wait state"}, {SOF_IPC_PANIC_ASSERT, "assertion failed"}, }; /** * sof_print_oops_and_stack - Handle the printing of DSP oops and stack trace * @sdev: Pointer to the device's sdev * @level: prink log level to use for the printing * @panic_code: the panic code * @tracep_code: tracepoint code * @oops: Pointer to DSP specific oops data * @panic_info: Pointer to the received panic information message * @stack: Pointer to the call stack data * @stack_words: Number of words in the stack data * * helper to be called from .dbg_dump callbacks. No error code is * provided, it's left as an exercise for the caller of .dbg_dump * (typically IPC or loader) */ void sof_print_oops_and_stack(struct snd_sof_dev *sdev, const char *level, u32 panic_code, u32 tracep_code, void *oops, struct sof_ipc_panic_info *panic_info, void *stack, size_t stack_words) { u32 code; int i; /* is firmware dead ? */ if ((panic_code & SOF_IPC_PANIC_MAGIC_MASK) != SOF_IPC_PANIC_MAGIC) { dev_printk(level, sdev->dev, "unexpected fault %#010x trace %#010x\n", panic_code, tracep_code); return; /* no fault ? */ } code = panic_code & (SOF_IPC_PANIC_MAGIC_MASK | SOF_IPC_PANIC_CODE_MASK); for (i = 0; i < ARRAY_SIZE(panic_msg); i++) { if (panic_msg[i].id == code) { dev_printk(level, sdev->dev, "reason: %s (%#x)\n", panic_msg[i].msg, code & SOF_IPC_PANIC_CODE_MASK); dev_printk(level, sdev->dev, "trace point: %#010x\n", tracep_code); goto out; } } /* unknown error */ dev_printk(level, sdev->dev, "unknown panic code: %#x\n", code & SOF_IPC_PANIC_CODE_MASK); dev_printk(level, sdev->dev, "trace point: %#010x\n", tracep_code); out: dev_printk(level, sdev->dev, "panic at %s:%d\n", panic_info->filename, panic_info->linenum); sof_oops(sdev, level, oops); sof_stack(sdev, level, oops, stack, stack_words); } EXPORT_SYMBOL(sof_print_oops_and_stack); /* Helper to manage DSP state */ void sof_set_fw_state(struct snd_sof_dev *sdev, enum sof_fw_state new_state) { if (sdev->fw_state == new_state) return; dev_dbg(sdev->dev, "fw_state change: %d -> %d\n", sdev->fw_state, new_state); sdev->fw_state = new_state; switch (new_state) { case SOF_FW_BOOT_NOT_STARTED: case SOF_FW_BOOT_COMPLETE: case SOF_FW_CRASHED: sof_client_fw_state_dispatcher(sdev); fallthrough; default: break; } } EXPORT_SYMBOL(sof_set_fw_state); /* * FW Boot State Transition Diagram * * +----------------------------------------------------------------------+ * | | * ------------------ ------------------ | * | | | | | * | BOOT_FAILED |<-------| READY_FAILED | | * | |<--+ | | ------------------ | * ------------------ | ------------------ | | | * ^ | ^ | CRASHED |---+ | * | | | | | | | * (FW Boot Timeout) | (FW_READY FAIL) ------------------ | | * | | | ^ | | * | | | |(DSP Panic) | | * ------------------ | | ------------------ | | * | | | | | | | | * | IN_PROGRESS |---------------+------------->| COMPLETE | | | * | | (FW Boot OK) (FW_READY OK) | | | | * ------------------ | ------------------ | | * ^ | | | | * | | | | | * (FW Loading OK) | (System Suspend/Runtime Suspend) * | | | | | * | (FW Loading Fail) | | | * ------------------ | ------------------ | | | * | | | | |<-----+ | | * | PREPARE |---+ | NOT_STARTED |<---------------------+ | * | | | |<--------------------------+ * ------------------ ------------------ * | ^ | ^ * | | | | * | +-----------------------+ | * | (DSP Probe OK) | * | | * | | * +------------------------------------+ * (System Suspend/Runtime Suspend) */ static int sof_probe_continue(struct snd_sof_dev *sdev) { struct snd_sof_pdata *plat_data = sdev->pdata; int ret; /* probe the DSP hardware */ ret = snd_sof_probe(sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to probe DSP %d\n", ret); goto probe_err; } sof_set_fw_state(sdev, SOF_FW_BOOT_PREPARE); /* check machine info */ ret = sof_machine_check(sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to get machine info %d\n", ret); goto dsp_err; } /* set up platform component driver */ snd_sof_new_platform_drv(sdev); if (sdev->dspless_mode_selected) { sof_set_fw_state(sdev, SOF_DSPLESS_MODE); goto skip_dsp_init; } /* register any debug/trace capabilities */ ret = snd_sof_dbg_init(sdev); if (ret < 0) { /* * debugfs issues are suppressed in snd_sof_dbg_init() since * we cannot rely on debugfs * here we trap errors due to memory allocation only. */ dev_err(sdev->dev, "error: failed to init DSP trace/debug %d\n", ret); goto dbg_err; } /* init the IPC */ sdev->ipc = snd_sof_ipc_init(sdev); if (!sdev->ipc) { ret = -ENOMEM; dev_err(sdev->dev, "error: failed to init DSP IPC %d\n", ret); goto ipc_err; } /* load the firmware */ ret = snd_sof_load_firmware(sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to load DSP firmware %d\n", ret); sof_set_fw_state(sdev, SOF_FW_BOOT_FAILED); goto fw_load_err; } sof_set_fw_state(sdev, SOF_FW_BOOT_IN_PROGRESS); /* * Boot the firmware. The FW boot status will be modified * in snd_sof_run_firmware() depending on the outcome. */ ret = snd_sof_run_firmware(sdev); if (ret < 0) { dev_err(sdev->dev, "error: failed to boot DSP firmware %d\n", ret); sof_set_fw_state(sdev, SOF_FW_BOOT_FAILED); goto fw_run_err; } if (sof_debug_check_flag(SOF_DBG_ENABLE_TRACE)) { sdev->fw_trace_is_supported = true; /* init firmware tracing */ ret = sof_fw_trace_init(sdev); if (ret < 0) { /* non fatal */ dev_warn(sdev->dev, "failed to initialize firmware tracing %d\n", ret); } } else { dev_dbg(sdev->dev, "SOF firmware trace disabled\n"); } skip_dsp_init: /* hereafter all FW boot flows are for PM reasons */ sdev->first_boot = false; /* now register audio DSP platform driver and dai */ ret = devm_snd_soc_register_component(sdev->dev, &sdev->plat_drv, sof_ops(sdev)->drv, sof_ops(sdev)->num_drv); if (ret < 0) { dev_err(sdev->dev, "error: failed to register DSP DAI driver %d\n", ret); goto fw_trace_err; } ret = snd_sof_machine_register(sdev, plat_data); if (ret < 0) { dev_err(sdev->dev, "error: failed to register machine driver %d\n", ret); goto fw_trace_err; } ret = sof_register_clients(sdev); if (ret < 0) { dev_err(sdev->dev, "failed to register clients %d\n", ret); goto sof_machine_err; } /* * Some platforms in SOF, ex: BYT, may not have their platform PM * callbacks set. Increment the usage count so as to * prevent the device from entering runtime suspend. */ if (!sof_ops(sdev)->runtime_suspend || !sof_ops(sdev)->runtime_resume) pm_runtime_get_noresume(sdev->dev); if (plat_data->sof_probe_complete) plat_data->sof_probe_complete(sdev->dev); sdev->probe_completed = true; return 0; sof_machine_err: snd_sof_machine_unregister(sdev, plat_data); fw_trace_err: sof_fw_trace_free(sdev); fw_run_err: snd_sof_fw_unload(sdev); fw_load_err: snd_sof_ipc_free(sdev); ipc_err: dbg_err: snd_sof_free_debug(sdev); dsp_err: snd_sof_remove(sdev); probe_err: snd_sof_remove_late(sdev); sof_ops_free(sdev); /* all resources freed, update state to match */ sof_set_fw_state(sdev, SOF_FW_BOOT_NOT_STARTED); sdev->first_boot = true; return ret; } static void sof_probe_work(struct work_struct *work) { struct snd_sof_dev *sdev = container_of(work, struct snd_sof_dev, probe_work); int ret; ret = sof_probe_continue(sdev); if (ret < 0) { /* errors cannot be propagated, log */ dev_err(sdev->dev, "error: %s failed err: %d\n", __func__, ret); } } int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data) { struct snd_sof_dev *sdev; int ret; sdev = devm_kzalloc(dev, sizeof(*sdev), GFP_KERNEL); if (!sdev) return -ENOMEM; /* initialize sof device */ sdev->dev = dev; /* initialize default DSP power state */ sdev->dsp_power_state.state = SOF_DSP_PM_D0; sdev->pdata = plat_data; sdev->first_boot = true; dev_set_drvdata(dev, sdev); if (sof_core_debug) dev_info(dev, "sof_debug value: %#x\n", sof_core_debug); if (sof_debug_check_flag(SOF_DBG_DSPLESS_MODE)) { if (plat_data->desc->dspless_mode_supported) { dev_info(dev, "Switching to DSPless mode\n"); sdev->dspless_mode_selected = true; } else { dev_info(dev, "DSPless mode is not supported by the platform\n"); } } /* check IPC support */ if (!(BIT(plat_data->ipc_type) & plat_data->desc->ipc_supported_mask)) { dev_err(dev, "ipc_type %d is not supported on this platform, mask is %#x\n", plat_data->ipc_type, plat_data->desc->ipc_supported_mask); return -EINVAL; } /* init ops, if necessary */ ret = sof_ops_init(sdev); if (ret < 0) return ret; /* check all mandatory ops */ if (!sof_ops(sdev) || !sof_ops(sdev)->probe) { sof_ops_free(sdev); dev_err(dev, "missing mandatory ops\n"); return -EINVAL; } if (!sdev->dspless_mode_selected && (!sof_ops(sdev)->run || !sof_ops(sdev)->block_read || !sof_ops(sdev)->block_write || !sof_ops(sdev)->send_msg || !sof_ops(sdev)->load_firmware || !sof_ops(sdev)->ipc_msg_data)) { sof_ops_free(sdev); dev_err(dev, "missing mandatory DSP ops\n"); return -EINVAL; } INIT_LIST_HEAD(&sdev->pcm_list); INIT_LIST_HEAD(&sdev->kcontrol_list); INIT_LIST_HEAD(&sdev->widget_list); INIT_LIST_HEAD(&sdev->pipeline_list); INIT_LIST_HEAD(&sdev->dai_list); INIT_LIST_HEAD(&sdev->dai_link_list); INIT_LIST_HEAD(&sdev->route_list); INIT_LIST_HEAD(&sdev->ipc_client_list); INIT_LIST_HEAD(&sdev->ipc_rx_handler_list); INIT_LIST_HEAD(&sdev->fw_state_handler_list); spin_lock_init(&sdev->ipc_lock); spin_lock_init(&sdev->hw_lock); mutex_init(&sdev->power_state_access); mutex_init(&sdev->ipc_client_mutex); mutex_init(&sdev->client_event_handler_mutex); /* set default timeouts if none provided */ if (plat_data->desc->ipc_timeout == 0) sdev->ipc_timeout = TIMEOUT_DEFAULT_IPC_MS; else sdev->ipc_timeout = plat_data->desc->ipc_timeout; if (plat_data->desc->boot_timeout == 0) sdev->boot_timeout = TIMEOUT_DEFAULT_BOOT_MS; else sdev->boot_timeout = plat_data->desc->boot_timeout; sof_set_fw_state(sdev, SOF_FW_BOOT_NOT_STARTED); /* * first pass of probe which isn't allowed to run in a work-queue, * typically to rely on -EPROBE_DEFER dependencies */ ret = snd_sof_probe_early(sdev); if (ret < 0) return ret; if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)) { INIT_WORK(&sdev->probe_work, sof_probe_work); schedule_work(&sdev->probe_work); return 0; } return sof_probe_continue(sdev); } EXPORT_SYMBOL(snd_sof_device_probe); bool snd_sof_device_probe_completed(struct device *dev) { struct snd_sof_dev *sdev = dev_get_drvdata(dev); return sdev->probe_completed; } EXPORT_SYMBOL(snd_sof_device_probe_completed); int snd_sof_device_remove(struct device *dev) { struct snd_sof_dev *sdev = dev_get_drvdata(dev); struct snd_sof_pdata *pdata = sdev->pdata; int ret; bool aborted = false; if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)) aborted = cancel_work_sync(&sdev->probe_work); /* * Unregister any registered client device first before IPC and debugfs * to allow client drivers to be removed cleanly */ sof_unregister_clients(sdev); /* * Unregister machine driver. This will unbind the snd_card which * will remove the component driver and unload the topology * before freeing the snd_card. */ snd_sof_machine_unregister(sdev, pdata); if (sdev->fw_state > SOF_FW_BOOT_NOT_STARTED) { sof_fw_trace_free(sdev); ret = snd_sof_dsp_power_down_notify(sdev); if (ret < 0) dev_warn(dev, "error: %d failed to prepare DSP for device removal", ret); snd_sof_ipc_free(sdev); snd_sof_free_debug(sdev); snd_sof_remove(sdev); snd_sof_remove_late(sdev); sof_ops_free(sdev); } else if (aborted) { /* probe_work never ran */ snd_sof_remove_late(sdev); sof_ops_free(sdev); } /* release firmware */ snd_sof_fw_unload(sdev); return 0; } EXPORT_SYMBOL(snd_sof_device_remove); int snd_sof_device_shutdown(struct device *dev) { struct snd_sof_dev *sdev = dev_get_drvdata(dev); if (IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)) cancel_work_sync(&sdev->probe_work); if (sdev->fw_state == SOF_FW_BOOT_COMPLETE) { sof_fw_trace_free(sdev); return snd_sof_shutdown(sdev); } return 0; } EXPORT_SYMBOL(snd_sof_device_shutdown); MODULE_AUTHOR("Liam Girdwood"); MODULE_DESCRIPTION("Sound Open Firmware (SOF) Core"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_ALIAS("platform:sof-audio"); MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT);
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