Introduce new, generic API for firmware tracing with sof_fw_trace_ prefix and switch to use it. At the same time the old IPC3 code can be dropped from trace.c, which is now a generic wrapper for the firmware tracing ops.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@linux.intel.com Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Bard Liao yung-chuan.liao@linux.intel.com Reviewed-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/core.c | 11 +- sound/soc/sof/debug.c | 2 +- sound/soc/sof/ipc.c | 6 + sound/soc/sof/ipc3.c | 2 +- sound/soc/sof/ops.c | 2 +- sound/soc/sof/pm.c | 8 +- sound/soc/sof/sof-priv.h | 13 +- sound/soc/sof/trace.c | 615 ++------------------------------------- 8 files changed, 44 insertions(+), 615 deletions(-)
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index ff636f0e2435..53719c04658f 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -252,12 +252,11 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) if (sof_debug_check_flag(SOF_DBG_ENABLE_TRACE)) { sdev->fw_trace_is_supported = true;
- /* init DMA trace */ - ret = snd_sof_init_trace(sdev); + /* init firmware tracing */ + ret = sof_fw_trace_init(sdev); if (ret < 0) { /* non fatal */ - dev_warn(sdev->dev, - "warning: failed to initialize trace %d\n", + dev_warn(sdev->dev, "failed to initialize firmware tracing %d\n", ret); } } else { @@ -308,7 +307,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) sof_machine_err: snd_sof_machine_unregister(sdev, plat_data); fw_trace_err: - snd_sof_free_trace(sdev); + sof_fw_trace_free(sdev); fw_run_err: snd_sof_fw_unload(sdev); fw_load_err: @@ -447,7 +446,7 @@ int snd_sof_device_remove(struct device *dev) snd_sof_machine_unregister(sdev, pdata);
if (sdev->fw_state > SOF_FW_BOOT_NOT_STARTED) { - snd_sof_free_trace(sdev); + 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", diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c index 54d3643b46ad..cf1271eb29b2 100644 --- a/sound/soc/sof/debug.c +++ b/sound/soc/sof/debug.c @@ -443,6 +443,6 @@ void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev) snd_sof_ipc_dump(sdev); snd_sof_dsp_dbg_dump(sdev, "Firmware exception", SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX); - snd_sof_trace_notify_for_error(sdev); + sof_fw_trace_fw_crashed(sdev); } EXPORT_SYMBOL(snd_sof_handle_fw_exception); diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c index 41f3a217be5d..c5aef5fc056b 100644 --- a/sound/soc/sof/ipc.c +++ b/sound/soc/sof/ipc.c @@ -184,6 +184,12 @@ struct snd_sof_ipc *snd_sof_ipc_init(struct snd_sof_dev *sdev) return NULL; }
+ if (ops->fw_tracing && (!ops->fw_tracing->init || !ops->fw_tracing->suspend || + !ops->fw_tracing->resume)) { + dev_err(sdev->dev, "Missing firmware tracing ops\n"); + return NULL; + } + return ipc; } EXPORT_SYMBOL(snd_sof_ipc_init); diff --git a/sound/soc/sof/ipc3.c b/sound/soc/sof/ipc3.c index 124d4442c6c3..dff5feaad370 100644 --- a/sound/soc/sof/ipc3.c +++ b/sound/soc/sof/ipc3.c @@ -946,7 +946,7 @@ static void ipc3_trace_message(struct snd_sof_dev *sdev, void *msg_buf)
switch (msg_type) { case SOF_IPC_TRACE_DMA_POSITION: - snd_sof_trace_update_pos(sdev, msg_buf); + ipc3_dtrace_posn_update(sdev, msg_buf); break; default: dev_err(sdev->dev, "unhandled trace message %#x\n", msg_type); diff --git a/sound/soc/sof/ops.c b/sound/soc/sof/ops.c index 235e2ef72178..ff066de4ceb9 100644 --- a/sound/soc/sof/ops.c +++ b/sound/soc/sof/ops.c @@ -177,7 +177,7 @@ void snd_sof_dsp_panic(struct snd_sof_dev *sdev, u32 offset, bool non_recoverabl snd_sof_dsp_dbg_dump(sdev, "DSP panic!", SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX); sof_set_fw_state(sdev, SOF_FW_CRASHED); - snd_sof_trace_notify_for_error(sdev); + sof_fw_trace_fw_crashed(sdev); } else { snd_sof_dsp_dbg_dump(sdev, "DSP panic (recovery will be attempted)", diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index fa3f5514c00f..18eb327a57f0 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -107,7 +107,7 @@ static int sof_resume(struct device *dev, bool runtime_resume) */ if (!runtime_resume && sof_ops(sdev)->set_power_state && old_state == SOF_DSP_PM_D0) { - ret = snd_sof_trace_resume(sdev); + ret = sof_fw_trace_resume(sdev); if (ret < 0) /* non fatal */ dev_warn(sdev->dev, @@ -143,7 +143,7 @@ static int sof_resume(struct device *dev, bool runtime_resume) }
/* resume DMA trace */ - ret = snd_sof_trace_resume(sdev); + ret = sof_fw_trace_resume(sdev); if (ret < 0) { /* non fatal */ dev_warn(sdev->dev, @@ -208,7 +208,7 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
/* Skip to platform-specific suspend if DSP is entering D0 */ if (target_state == SOF_DSP_PM_D0) { - snd_sof_trace_suspend(sdev, pm_state); + sof_fw_trace_suspend(sdev, pm_state); /* Notify clients not managed by pm framework about core suspend */ sof_suspend_clients(sdev, pm_state); goto suspend; @@ -218,7 +218,7 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) tplg_ops->tear_down_all_pipelines(sdev, false);
/* suspend DMA trace */ - snd_sof_trace_suspend(sdev, pm_state); + sof_fw_trace_suspend(sdev, pm_state);
/* Notify clients not managed by pm framework about core suspend */ sof_suspend_clients(sdev, pm_state); diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index f1cbd2b0d1c9..61ef739461f0 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -660,27 +660,26 @@ static inline void snd_sof_ipc_process_reply(struct snd_sof_dev *sdev, u32 msg_i /* * Trace/debug */ -int snd_sof_init_trace(struct snd_sof_dev *sdev); -void snd_sof_free_trace(struct snd_sof_dev *sdev); int snd_sof_dbg_init(struct snd_sof_dev *sdev); void snd_sof_free_debug(struct snd_sof_dev *sdev); int snd_sof_debugfs_buf_item(struct snd_sof_dev *sdev, void *base, size_t size, const char *name, mode_t mode); -int snd_sof_trace_update_pos(struct snd_sof_dev *sdev, - struct sof_ipc_dma_trace_posn *posn); -void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev); 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); -void snd_sof_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state); -int snd_sof_trace_resume(struct snd_sof_dev *sdev); void snd_sof_handle_fw_exception(struct snd_sof_dev *sdev); int snd_sof_dbg_memory_info_init(struct snd_sof_dev *sdev); int snd_sof_debugfs_add_region_item_iomem(struct snd_sof_dev *sdev, enum snd_sof_fw_blk_type blk_type, u32 offset, size_t size, const char *name, enum sof_debugfs_access_type access_type); +/* Firmware tracing */ +int sof_fw_trace_init(struct snd_sof_dev *sdev); +void sof_fw_trace_free(struct snd_sof_dev *sdev); +void sof_fw_trace_fw_crashed(struct snd_sof_dev *sdev); +void sof_fw_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state); +int sof_fw_trace_resume(struct snd_sof_dev *sdev);
/* * DSP Architectures. diff --git a/sound/soc/sof/trace.c b/sound/soc/sof/trace.c index c5cc78c1958f..6f662642d611 100644 --- a/sound/soc/sof/trace.c +++ b/sound/soc/sof/trace.c @@ -1,626 +1,51 @@ -// 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 +// SPDX-License-Identifier: GPL-2.0-only // +// Copyright(c) 2022 Intel Corporation. All rights reserved.
-#include <linux/debugfs.h> -#include <linux/sched/signal.h> #include "sof-priv.h" -#include "sof-audio.h" -#include "ops.h" -#include "sof-utils.h" - -#define TRACE_FILTER_ELEMENTS_PER_ENTRY 4 -#define TRACE_FILTER_MAX_CONFIG_STRING_LENGTH 1024 - -static int trace_filter_append_elem(struct snd_sof_dev *sdev, uint32_t key, uint32_t value, - struct sof_ipc_trace_filter_elem *elem_list, - int capacity, int *counter) -{ - if (*counter >= capacity) - return -ENOMEM; - - elem_list[*counter].key = key; - elem_list[*counter].value = value; - ++*counter; - - return 0; -} - -static int trace_filter_parse_entry(struct snd_sof_dev *sdev, const char *line, - struct sof_ipc_trace_filter_elem *elem, - int capacity, int *counter) -{ - int len = strlen(line); - int cnt = *counter; - uint32_t uuid_id; - int log_level; - int pipe_id; - int comp_id; - int read; - int ret; - - /* ignore empty content */ - ret = sscanf(line, " %n", &read); - if (!ret && read == len) - return len; - - ret = sscanf(line, " %d %x %d %d %n", &log_level, &uuid_id, &pipe_id, &comp_id, &read); - if (ret != TRACE_FILTER_ELEMENTS_PER_ENTRY || read != len) { - dev_err(sdev->dev, "error: invalid trace filter entry '%s'\n", line); - return -EINVAL; - } - - if (uuid_id > 0) { - ret = trace_filter_append_elem(sdev, SOF_IPC_TRACE_FILTER_ELEM_BY_UUID, - uuid_id, elem, capacity, &cnt); - if (ret) - return ret; - } - if (pipe_id >= 0) { - ret = trace_filter_append_elem(sdev, SOF_IPC_TRACE_FILTER_ELEM_BY_PIPE, - pipe_id, elem, capacity, &cnt); - if (ret) - return ret; - } - if (comp_id >= 0) { - ret = trace_filter_append_elem(sdev, SOF_IPC_TRACE_FILTER_ELEM_BY_COMP, - comp_id, elem, capacity, &cnt); - if (ret) - return ret; - } - - ret = trace_filter_append_elem(sdev, SOF_IPC_TRACE_FILTER_ELEM_SET_LEVEL | - SOF_IPC_TRACE_FILTER_ELEM_FIN, - log_level, elem, capacity, &cnt); - if (ret) - return ret; - - /* update counter only when parsing whole entry passed */ - *counter = cnt; - - return len; -} - -static int trace_filter_parse(struct snd_sof_dev *sdev, char *string, - int *out_elem_cnt, - struct sof_ipc_trace_filter_elem **out) -{ - static const char entry_delimiter[] = ";"; - char *entry = string; - int capacity = 0; - int entry_len; - int cnt = 0; - - /* - * Each entry contains at least 1, up to TRACE_FILTER_ELEMENTS_PER_ENTRY - * IPC elements, depending on content. Calculate IPC elements capacity - * for the input string where each element is set. - */ - while (entry) { - capacity += TRACE_FILTER_ELEMENTS_PER_ENTRY; - entry = strchr(entry + 1, entry_delimiter[0]); - } - *out = kmalloc(capacity * sizeof(**out), GFP_KERNEL); - if (!*out) - return -ENOMEM; - - /* split input string by ';', and parse each entry separately in trace_filter_parse_entry */ - while ((entry = strsep(&string, entry_delimiter))) { - entry_len = trace_filter_parse_entry(sdev, entry, *out, capacity, &cnt); - if (entry_len < 0) { - dev_err(sdev->dev, "error: %s failed for '%s', %d\n", __func__, entry, - entry_len); - return -EINVAL; - } - } - - *out_elem_cnt = cnt; - - return 0; -} - -static int sof_ipc_trace_update_filter(struct snd_sof_dev *sdev, int num_elems, - struct sof_ipc_trace_filter_elem *elems) -{ - struct sof_ipc_trace_filter *msg; - struct sof_ipc_reply reply; - size_t size; - int ret; - - size = struct_size(msg, elems, num_elems); - if (size > SOF_IPC_MSG_MAX_SIZE) - return -EINVAL; - - msg = kmalloc(size, GFP_KERNEL); - if (!msg) - return -ENOMEM; - - msg->hdr.size = size; - msg->hdr.cmd = SOF_IPC_GLB_TRACE_MSG | SOF_IPC_TRACE_FILTER_UPDATE; - msg->elem_cnt = num_elems; - memcpy(&msg->elems[0], elems, num_elems * sizeof(*elems)); - - ret = pm_runtime_get_sync(sdev->dev); - if (ret < 0 && ret != -EACCES) { - pm_runtime_put_noidle(sdev->dev); - dev_err(sdev->dev, "error: enabling device failed: %d\n", ret); - goto error; - } - ret = sof_ipc_tx_message(sdev->ipc, msg, msg->hdr.size, &reply, sizeof(reply)); - pm_runtime_mark_last_busy(sdev->dev); - pm_runtime_put_autosuspend(sdev->dev); - -error: - kfree(msg); - return ret ? ret : reply.error; -} - -static ssize_t sof_dfsentry_trace_filter_write(struct file *file, const char __user *from, - size_t count, loff_t *ppos) -{ - struct snd_sof_dfsentry *dfse = file->private_data; - struct sof_ipc_trace_filter_elem *elems = NULL; - struct snd_sof_dev *sdev = dfse->sdev; - loff_t pos = 0; - int num_elems; - char *string; - int ret; - - if (count > TRACE_FILTER_MAX_CONFIG_STRING_LENGTH) { - dev_err(sdev->dev, "%s too long input, %zu > %d\n", __func__, count, - TRACE_FILTER_MAX_CONFIG_STRING_LENGTH); - return -EINVAL; - } - - string = kmalloc(count + 1, GFP_KERNEL); - if (!string) - return -ENOMEM; - - /* assert null termination */ - string[count] = 0; - ret = simple_write_to_buffer(string, count, &pos, from, count); - if (ret < 0) - goto error; - - ret = trace_filter_parse(sdev, string, &num_elems, &elems); - if (ret < 0) { - dev_err(sdev->dev, "error: fail in trace_filter_parse, %d\n", ret); - goto error; - } - - if (num_elems) { - ret = sof_ipc_trace_update_filter(sdev, num_elems, elems); - if (ret < 0) { - dev_err(sdev->dev, "error: fail in sof_ipc_trace_update_filter %d\n", ret); - goto error; - } - } - ret = count; -error: - kfree(string); - kfree(elems); - return ret; -} - -static const struct file_operations sof_dfs_trace_filter_fops = { - .open = simple_open, - .write = sof_dfsentry_trace_filter_write, - .llseek = default_llseek, -}; - -static int trace_debugfs_filter_create(struct snd_sof_dev *sdev) -{ - struct snd_sof_dfsentry *dfse; - - dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL); - if (!dfse) - return -ENOMEM; - - dfse->sdev = sdev; - dfse->type = SOF_DFSENTRY_TYPE_BUF; - - debugfs_create_file("filter", 0200, sdev->debugfs_root, dfse, - &sof_dfs_trace_filter_fops); - /* add to dfsentry list */ - list_add(&dfse->list, &sdev->dfsentry_list); - - return 0; -} - -static size_t sof_trace_avail(struct snd_sof_dev *sdev, - loff_t pos, size_t buffer_size) -{ - loff_t host_offset = READ_ONCE(sdev->host_offset); - - /* - * If host offset is less than local pos, it means write pointer of - * host DMA buffer has been wrapped. We should output the trace data - * at the end of host DMA buffer at first. - */ - if (host_offset < pos) - return buffer_size - pos; - - /* If there is available trace data now, it is unnecessary to wait. */ - if (host_offset > pos) - return host_offset - pos; - - return 0; -} - -static size_t sof_wait_trace_avail(struct snd_sof_dev *sdev, - loff_t pos, size_t buffer_size) -{ - wait_queue_entry_t wait; - size_t ret = sof_trace_avail(sdev, pos, buffer_size); - - /* data immediately available */ - if (ret) - return ret; - - if (sdev->dtrace_state != SOF_DTRACE_ENABLED && sdev->dtrace_draining) { - /* - * tracing has ended and all traces have been - * read by client, return EOF - */ - sdev->dtrace_draining = false; - return 0; - } - - /* wait for available trace data from FW */ - init_waitqueue_entry(&wait, current); - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&sdev->trace_sleep, &wait); - - if (!signal_pending(current)) { - /* set timeout to max value, no error code */ - schedule_timeout(MAX_SCHEDULE_TIMEOUT); - } - remove_wait_queue(&sdev->trace_sleep, &wait); - - return sof_trace_avail(sdev, pos, buffer_size); -} - -static ssize_t sof_dfsentry_trace_read(struct file *file, char __user *buffer, - size_t count, loff_t *ppos) -{ - struct snd_sof_dfsentry *dfse = file->private_data; - struct snd_sof_dev *sdev = dfse->sdev; - unsigned long rem; - loff_t lpos = *ppos; - size_t avail, buffer_size = dfse->size; - u64 lpos_64; - - /* make sure we know about any failures on the DSP side */ - sdev->dtrace_error = false; - - /* check pos and count */ - if (lpos < 0) - return -EINVAL; - if (!count) - return 0;
- /* check for buffer wrap and count overflow */ - lpos_64 = lpos; - lpos = do_div(lpos_64, buffer_size); - - /* get available count based on current host offset */ - avail = sof_wait_trace_avail(sdev, lpos, buffer_size); - if (sdev->dtrace_error) { - dev_err(sdev->dev, "error: trace IO error\n"); - return -EIO; - } - - /* make sure count is <= avail */ - if (count > avail) - count = avail; - - /* - * make sure that all trace data is available for the CPU as the trace - * data buffer might be allocated from non consistent memory. - * Note: snd_dma_buffer_sync() is called for normal audio playback and - * capture streams also. - */ - snd_dma_buffer_sync(&sdev->dmatb, SNDRV_DMA_SYNC_CPU); - /* copy available trace data to debugfs */ - rem = copy_to_user(buffer, ((u8 *)(dfse->buf) + lpos), count); - if (rem) - return -EFAULT; - - *ppos += count; - - /* move debugfs reading position */ - return count; -} - -static int sof_dfsentry_trace_release(struct inode *inode, struct file *file) +int sof_fw_trace_init(struct snd_sof_dev *sdev) { - struct snd_sof_dfsentry *dfse = inode->i_private; - struct snd_sof_dev *sdev = dfse->sdev; - - /* avoid duplicate traces at next open */ - if (sdev->dtrace_state != SOF_DTRACE_ENABLED) - sdev->host_offset = 0; - - return 0; -} - -static const struct file_operations sof_dfs_trace_fops = { - .open = simple_open, - .read = sof_dfsentry_trace_read, - .llseek = default_llseek, - .release = sof_dfsentry_trace_release, -}; - -static int trace_debugfs_create(struct snd_sof_dev *sdev) -{ - struct snd_sof_dfsentry *dfse; - int ret; - - if (!sdev) - return -EINVAL; - - ret = trace_debugfs_filter_create(sdev); - if (ret < 0) - dev_err(sdev->dev, "error: fail in %s, %d", __func__, ret); - - dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL); - if (!dfse) - return -ENOMEM; - - dfse->type = SOF_DFSENTRY_TYPE_BUF; - dfse->buf = sdev->dmatb.area; - dfse->size = sdev->dmatb.bytes; - dfse->sdev = sdev; - - debugfs_create_file("trace", 0444, sdev->debugfs_root, dfse, - &sof_dfs_trace_fops); - - return 0; -} - -static int snd_sof_enable_trace(struct snd_sof_dev *sdev) -{ - struct sof_ipc_fw_ready *ready = &sdev->fw_ready; - struct sof_ipc_fw_version *v = &ready->version; - struct sof_ipc_dma_trace_params_ext params; - struct sof_ipc_reply ipc_reply; - int ret; - - if (!sdev->fw_trace_is_supported) - return 0; - - if (sdev->dtrace_state == SOF_DTRACE_ENABLED || !sdev->dma_trace_pages) - return -EINVAL; - - if (sdev->dtrace_state == SOF_DTRACE_STOPPED) - goto start; - - /* set IPC parameters */ - params.hdr.cmd = SOF_IPC_GLB_TRACE_MSG; - /* PARAMS_EXT is only supported from ABI 3.7.0 onwards */ - if (v->abi_version >= SOF_ABI_VER(3, 7, 0)) { - params.hdr.size = sizeof(struct sof_ipc_dma_trace_params_ext); - params.hdr.cmd |= SOF_IPC_TRACE_DMA_PARAMS_EXT; - params.timestamp_ns = ktime_get(); /* in nanosecond */ - } else { - params.hdr.size = sizeof(struct sof_ipc_dma_trace_params); - params.hdr.cmd |= SOF_IPC_TRACE_DMA_PARAMS; - } - params.buffer.phy_addr = sdev->dmatp.addr; - params.buffer.size = sdev->dmatb.bytes; - params.buffer.pages = sdev->dma_trace_pages; - params.stream_tag = 0; - - sdev->host_offset = 0; - sdev->dtrace_draining = false; - - ret = snd_sof_dma_trace_init(sdev, ¶ms); - if (ret < 0) { - dev_err(sdev->dev, - "error: fail in snd_sof_dma_trace_init %d\n", ret); - return ret; - } - dev_dbg(sdev->dev, "%s: stream_tag: %d\n", __func__, params.stream_tag); - - /* send IPC to the DSP */ - ret = sof_ipc_tx_message(sdev->ipc, ¶ms, sizeof(params), &ipc_reply, sizeof(ipc_reply)); - if (ret < 0) { - dev_err(sdev->dev, - "error: can't set params for DMA for trace %d\n", ret); - goto trace_release; - } - -start: - ret = snd_sof_dma_trace_trigger(sdev, SNDRV_PCM_TRIGGER_START); - if (ret < 0) { - dev_err(sdev->dev, - "error: snd_sof_dma_trace_trigger: start: %d\n", ret); - goto trace_release; - } - - sdev->dtrace_state = SOF_DTRACE_ENABLED; - - return 0; - -trace_release: - snd_sof_dma_trace_release(sdev); - return ret; -} - -int snd_sof_init_trace(struct snd_sof_dev *sdev) -{ - int ret; - - /* dtrace is only supported with SOF_IPC */ - if (sdev->pdata->ipc_type != SOF_IPC) + if (!sdev->ipc->ops->fw_tracing) { + dev_info(sdev->dev, "Firmware tracing is not available\n"); sdev->fw_trace_is_supported = false;
- if (!sdev->fw_trace_is_supported) return 0; - - /* set false before start initialization */ - sdev->dtrace_state = SOF_DTRACE_DISABLED; - - /* allocate trace page table buffer */ - ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, sdev->dev, - PAGE_SIZE, &sdev->dmatp); - if (ret < 0) { - dev_err(sdev->dev, - "error: can't alloc page table for trace %d\n", ret); - return ret; - } - - /* allocate trace data buffer */ - ret = snd_dma_alloc_dir_pages(SNDRV_DMA_TYPE_DEV_SG, sdev->dev, - DMA_FROM_DEVICE, DMA_BUF_SIZE_FOR_TRACE, - &sdev->dmatb); - if (ret < 0) { - dev_err(sdev->dev, - "error: can't alloc buffer for trace %d\n", ret); - goto page_err; - } - - /* create compressed page table for audio firmware */ - ret = snd_sof_create_page_table(sdev->dev, &sdev->dmatb, - sdev->dmatp.area, sdev->dmatb.bytes); - if (ret < 0) - goto table_err; - - sdev->dma_trace_pages = ret; - dev_dbg(sdev->dev, "%s: dma_trace_pages: %d\n", - __func__, sdev->dma_trace_pages); - - if (sdev->first_boot) { - ret = trace_debugfs_create(sdev); - if (ret < 0) - goto table_err; }
- init_waitqueue_head(&sdev->trace_sleep); - - ret = snd_sof_enable_trace(sdev); - if (ret < 0) - goto table_err; - - return 0; -table_err: - sdev->dma_trace_pages = 0; - snd_dma_free_pages(&sdev->dmatb); -page_err: - snd_dma_free_pages(&sdev->dmatp); - return ret; + return sdev->ipc->ops->fw_tracing->init(sdev); } -EXPORT_SYMBOL(snd_sof_init_trace);
-int snd_sof_trace_update_pos(struct snd_sof_dev *sdev, - struct sof_ipc_dma_trace_posn *posn) +void sof_fw_trace_free(struct snd_sof_dev *sdev) { - if (!sdev->fw_trace_is_supported) - return 0; - - if (sdev->dtrace_state == SOF_DTRACE_ENABLED && - sdev->host_offset != posn->host_offset) { - sdev->host_offset = posn->host_offset; - wake_up(&sdev->trace_sleep); - } - - if (posn->overflow != 0) - dev_err(sdev->dev, - "error: DSP trace buffer overflow %u bytes. Total messages %d\n", - posn->overflow, posn->messages); + if (!sdev->fw_trace_is_supported || !sdev->ipc->ops->fw_tracing) + return;
- return 0; + if (sdev->ipc->ops->fw_tracing->free) + sdev->ipc->ops->fw_tracing->free(sdev); }
-/* an error has occurred within the DSP that prevents further trace */ -void snd_sof_trace_notify_for_error(struct snd_sof_dev *sdev) +void sof_fw_trace_fw_crashed(struct snd_sof_dev *sdev) { if (!sdev->fw_trace_is_supported) return;
- if (sdev->dtrace_state == SOF_DTRACE_ENABLED) { - sdev->dtrace_error = true; - wake_up(&sdev->trace_sleep); - } + if (sdev->ipc->ops->fw_tracing->fw_crashed) + sdev->ipc->ops->fw_tracing->fw_crashed(sdev); } -EXPORT_SYMBOL(snd_sof_trace_notify_for_error);
-static void snd_sof_release_trace(struct snd_sof_dev *sdev, bool only_stop) +void sof_fw_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state) { - struct sof_ipc_fw_ready *ready = &sdev->fw_ready; - struct sof_ipc_fw_version *v = &ready->version; - struct sof_ipc_cmd_hdr hdr; - struct sof_ipc_reply ipc_reply; - int ret; - - if (!sdev->fw_trace_is_supported || sdev->dtrace_state == SOF_DTRACE_DISABLED) + if (!sdev->fw_trace_is_supported) return;
- ret = snd_sof_dma_trace_trigger(sdev, SNDRV_PCM_TRIGGER_STOP); - if (ret < 0) - dev_err(sdev->dev, - "error: snd_sof_dma_trace_trigger: stop: %d\n", ret); - sdev->dtrace_state = SOF_DTRACE_STOPPED; - - /* - * stop and free trace DMA in the DSP. TRACE_DMA_FREE is only supported from - * ABI 3.20.0 onwards - */ - if (v->abi_version >= SOF_ABI_VER(3, 20, 0)) { - hdr.size = sizeof(hdr); - hdr.cmd = SOF_IPC_GLB_TRACE_MSG | SOF_IPC_TRACE_DMA_FREE; - - ret = sof_ipc_tx_message(sdev->ipc, &hdr, hdr.size, - &ipc_reply, sizeof(ipc_reply)); - if (ret < 0) - dev_err(sdev->dev, "DMA_TRACE_FREE failed with error: %d\n", ret); - } - - if (only_stop) - goto out; - - ret = snd_sof_dma_trace_release(sdev); - if (ret < 0) - dev_err(sdev->dev, - "error: fail in snd_sof_dma_trace_release %d\n", ret); - - sdev->dtrace_state = SOF_DTRACE_DISABLED; - -out: - sdev->dtrace_draining = true; - wake_up(&sdev->trace_sleep); + sdev->ipc->ops->fw_tracing->suspend(sdev, pm_state); }
-void snd_sof_trace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state) -{ - snd_sof_release_trace(sdev, pm_state.event == SOF_DSP_PM_D0); -} -EXPORT_SYMBOL(snd_sof_trace_suspend); - -int snd_sof_trace_resume(struct snd_sof_dev *sdev) -{ - return snd_sof_enable_trace(sdev); -} -EXPORT_SYMBOL(snd_sof_trace_resume); - -void snd_sof_free_trace(struct snd_sof_dev *sdev) +int sof_fw_trace_resume(struct snd_sof_dev *sdev) { if (!sdev->fw_trace_is_supported) - return; - - /* release trace */ - snd_sof_release_trace(sdev, false); + return 0;
- if (sdev->dma_trace_pages) { - snd_dma_free_pages(&sdev->dmatb); - snd_dma_free_pages(&sdev->dmatp); - sdev->dma_trace_pages = 0; - } + return sdev->ipc->ops->fw_tracing->resume(sdev); } -EXPORT_SYMBOL(snd_sof_free_trace);