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![Dan Carpenter](/assets/img/avatar_default.png)
The "id" comes from the user. Change the type to unsigned to prevent
an array underflow.
Fixes: f4ea22f7aa
("ASoC: SOF: ipc4: Add support for mtrace log extraction")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/Y8laruWOEwOC/dx9@kili
Signed-off-by: Mark Brown <broonie@kernel.org>
660 lines
18 KiB
C
660 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright(c) 2022 Intel Corporation. All rights reserved.
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#include <linux/debugfs.h>
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#include <linux/sched/signal.h>
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#include <sound/sof/ipc4/header.h>
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#include "sof-priv.h"
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#include "ipc4-priv.h"
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/*
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* debug info window is organized in 16 (equal sized) pages:
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*
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* ------------------------
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* | Page0 - descriptors |
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* ------------------------
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* | Page1 - slot0 |
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* ------------------------
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* | Page2 - slot1 |
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* ------------------------
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* | ... |
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* ------------------------
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* | Page14 - slot13 |
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* ------------------------
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* | Page15 - slot14 |
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* ------------------------
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*
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* The slot size == page size
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*
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* The first page contains descriptors for the remaining 15 cores
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* The slot descriptor is:
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* u32 res_id;
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* u32 type;
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* u32 vma;
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*
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* Log buffer slots have the following layout:
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* u32 host_read_ptr;
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* u32 dsp_write_ptr;
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* u8 buffer[];
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*
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* The two pointers are offsets within the buffer.
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*/
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#define SOF_MTRACE_DESCRIPTOR_SIZE 12 /* 3 x u32 */
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#define FW_EPOCH_DELTA 11644473600LL
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#define INVALID_SLOT_OFFSET 0xffffffff
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#define MAX_ALLOWED_LIBRARIES 16
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#define MAX_MTRACE_SLOTS 15
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#define SOF_MTRACE_PAGE_SIZE 0x1000
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#define SOF_MTRACE_SLOT_SIZE SOF_MTRACE_PAGE_SIZE
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/* debug log slot types */
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#define SOF_MTRACE_SLOT_UNUSED 0x00000000
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#define SOF_MTRACE_SLOT_CRITICAL_LOG 0x54524300 /* byte 0: core ID */
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#define SOF_MTRACE_SLOT_DEBUG_LOG 0x474f4c00 /* byte 0: core ID */
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#define SOF_MTRACE_SLOT_GDB_STUB 0x42444700
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#define SOF_MTRACE_SLOT_TELEMETRY 0x4c455400
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#define SOF_MTRACE_SLOT_BROKEN 0x44414544
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/* for debug and critical types */
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#define SOF_MTRACE_SLOT_CORE_MASK GENMASK(7, 0)
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#define SOF_MTRACE_SLOT_TYPE_MASK GENMASK(31, 8)
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#define DEFAULT_AGING_TIMER_PERIOD_MS 0x100
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#define DEFAULT_FIFO_FULL_TIMER_PERIOD_MS 0x1000
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/* ipc4 log level and source definitions for logs_priorities_mask */
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#define SOF_MTRACE_LOG_LEVEL_CRITICAL BIT(0)
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#define SOF_MTRACE_LOG_LEVEL_ERROR BIT(1)
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#define SOF_MTRACE_LOG_LEVEL_WARNING BIT(2)
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#define SOF_MTRACE_LOG_LEVEL_INFO BIT(3)
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#define SOF_MTRACE_LOG_LEVEL_VERBOSE BIT(4)
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#define SOF_MTRACE_LOG_SOURCE_INFRA BIT(5) /* log source 0 */
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#define SOF_MTRACE_LOG_SOURCE_HAL BIT(6)
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#define SOF_MTRACE_LOG_SOURCE_MODULE BIT(7)
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#define SOF_MTRACE_LOG_SOURCE_AUDIO BIT(8)
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#define SOF_MTRACE_LOG_SOURCE_SCHEDULER BIT(9)
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#define SOF_MTRACE_LOG_SOURCE_ULP_INFRA BIT(10)
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#define SOF_MTRACE_LOG_SOURCE_ULP_MODULE BIT(11)
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#define SOF_MTRACE_LOG_SOURCE_VISION BIT(12) /* log source 7 */
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#define DEFAULT_LOGS_PRIORITIES_MASK (SOF_MTRACE_LOG_LEVEL_CRITICAL | \
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SOF_MTRACE_LOG_LEVEL_ERROR | \
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SOF_MTRACE_LOG_LEVEL_WARNING | \
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SOF_MTRACE_LOG_LEVEL_INFO | \
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SOF_MTRACE_LOG_SOURCE_INFRA | \
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SOF_MTRACE_LOG_SOURCE_HAL | \
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SOF_MTRACE_LOG_SOURCE_MODULE | \
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SOF_MTRACE_LOG_SOURCE_AUDIO)
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struct sof_log_state_info {
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u32 aging_timer_period;
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u32 fifo_full_timer_period;
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u32 enable;
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u32 logs_priorities_mask[MAX_ALLOWED_LIBRARIES];
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} __packed;
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enum sof_mtrace_state {
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SOF_MTRACE_DISABLED,
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SOF_MTRACE_INITIALIZING,
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SOF_MTRACE_ENABLED,
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};
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struct sof_mtrace_core_data {
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struct snd_sof_dev *sdev;
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int id;
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u32 slot_offset;
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void *log_buffer;
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struct mutex buffer_lock; /* for log_buffer alloc/free */
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u32 host_read_ptr;
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u32 dsp_write_ptr;
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/* pos update IPC arrived before the slot offset is known, queried */
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bool delayed_pos_update;
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wait_queue_head_t trace_sleep;
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};
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struct sof_mtrace_priv {
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struct snd_sof_dev *sdev;
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enum sof_mtrace_state mtrace_state;
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struct sof_log_state_info state_info;
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struct sof_mtrace_core_data cores[];
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};
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static int sof_ipc4_mtrace_dfs_open(struct inode *inode, struct file *file)
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{
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struct sof_mtrace_core_data *core_data = inode->i_private;
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int ret;
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mutex_lock(&core_data->buffer_lock);
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if (core_data->log_buffer) {
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ret = -EBUSY;
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goto out;
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}
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ret = debugfs_file_get(file->f_path.dentry);
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if (unlikely(ret))
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goto out;
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core_data->log_buffer = kmalloc(SOF_MTRACE_SLOT_SIZE, GFP_KERNEL);
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if (!core_data->log_buffer) {
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debugfs_file_put(file->f_path.dentry);
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ret = -ENOMEM;
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goto out;
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}
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ret = simple_open(inode, file);
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if (ret) {
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kfree(core_data->log_buffer);
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debugfs_file_put(file->f_path.dentry);
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}
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out:
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mutex_unlock(&core_data->buffer_lock);
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return ret;
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}
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static bool sof_wait_mtrace_avail(struct sof_mtrace_core_data *core_data)
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{
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wait_queue_entry_t wait;
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/* data immediately available */
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if (core_data->host_read_ptr != core_data->dsp_write_ptr)
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return true;
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/* wait for available trace data from FW */
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init_waitqueue_entry(&wait, current);
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set_current_state(TASK_INTERRUPTIBLE);
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add_wait_queue(&core_data->trace_sleep, &wait);
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if (!signal_pending(current)) {
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/* set timeout to max value, no error code */
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schedule_timeout(MAX_SCHEDULE_TIMEOUT);
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}
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remove_wait_queue(&core_data->trace_sleep, &wait);
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if (core_data->host_read_ptr != core_data->dsp_write_ptr)
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return true;
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return false;
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}
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static ssize_t sof_ipc4_mtrace_dfs_read(struct file *file, char __user *buffer,
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size_t count, loff_t *ppos)
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{
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struct sof_mtrace_core_data *core_data = file->private_data;
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u32 log_buffer_offset, log_buffer_size, read_ptr, write_ptr;
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struct snd_sof_dev *sdev = core_data->sdev;
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struct sof_mtrace_priv *priv = sdev->fw_trace_data;
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void *log_buffer = core_data->log_buffer;
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loff_t lpos = *ppos;
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u32 avail;
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int ret;
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/* check pos and count */
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if (lpos < 0)
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return -EINVAL;
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if (!count || count < sizeof(avail))
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return 0;
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/* get available count based on current host offset */
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if (!sof_wait_mtrace_avail(core_data)) {
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/* No data available */
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avail = 0;
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if (copy_to_user(buffer, &avail, sizeof(avail)))
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return -EFAULT;
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return 0;
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}
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if (core_data->slot_offset == INVALID_SLOT_OFFSET)
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return 0;
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/* The log data buffer starts after the two pointer in the slot */
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log_buffer_offset = core_data->slot_offset + (sizeof(u32) * 2);
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/* The log data size excludes the pointers */
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log_buffer_size = SOF_MTRACE_SLOT_SIZE - (sizeof(u32) * 2);
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read_ptr = core_data->host_read_ptr;
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write_ptr = core_data->dsp_write_ptr;
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if (read_ptr < write_ptr)
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avail = write_ptr - read_ptr;
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else
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avail = log_buffer_size - read_ptr + write_ptr;
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if (!avail)
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return 0;
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if (avail > log_buffer_size)
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avail = log_buffer_size;
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/* Need space for the initial u32 of the avail */
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if (avail > count - sizeof(avail))
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avail = count - sizeof(avail);
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if (sof_debug_check_flag(SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS))
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dev_dbg(sdev->dev,
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"core%d, host read: %#x, dsp write: %#x, avail: %#x\n",
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core_data->id, read_ptr, write_ptr, avail);
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if (read_ptr < write_ptr) {
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/* Read data between read pointer and write pointer */
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sof_mailbox_read(sdev, log_buffer_offset + read_ptr, log_buffer, avail);
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} else {
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/* read from read pointer to end of the slot */
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sof_mailbox_read(sdev, log_buffer_offset + read_ptr, log_buffer,
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avail - write_ptr);
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/* read from slot start to write pointer */
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if (write_ptr)
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sof_mailbox_read(sdev, log_buffer_offset,
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(u8 *)(log_buffer) + avail - write_ptr,
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write_ptr);
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}
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/* first write the number of bytes we have gathered */
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ret = copy_to_user(buffer, &avail, sizeof(avail));
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if (ret)
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return -EFAULT;
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/* Followed by the data itself */
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ret = copy_to_user(buffer + sizeof(avail), log_buffer, avail);
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if (ret)
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return -EFAULT;
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/* Update the host_read_ptr in the slot for this core */
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read_ptr += avail;
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if (read_ptr >= log_buffer_size)
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read_ptr -= log_buffer_size;
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sof_mailbox_write(sdev, core_data->slot_offset, &read_ptr, sizeof(read_ptr));
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/* Only update the host_read_ptr if mtrace is enabled */
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if (priv->mtrace_state != SOF_MTRACE_DISABLED)
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core_data->host_read_ptr = read_ptr;
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/*
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* Ask for a new buffer from user space for the next chunk, not
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* streaming due to the heading number of bytes value.
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*/
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*ppos += count;
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return count;
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}
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static int sof_ipc4_mtrace_dfs_release(struct inode *inode, struct file *file)
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{
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struct sof_mtrace_core_data *core_data = inode->i_private;
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debugfs_file_put(file->f_path.dentry);
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mutex_lock(&core_data->buffer_lock);
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kfree(core_data->log_buffer);
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core_data->log_buffer = NULL;
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mutex_unlock(&core_data->buffer_lock);
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return 0;
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}
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static const struct file_operations sof_dfs_mtrace_fops = {
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.open = sof_ipc4_mtrace_dfs_open,
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.read = sof_ipc4_mtrace_dfs_read,
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.llseek = default_llseek,
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.release = sof_ipc4_mtrace_dfs_release,
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.owner = THIS_MODULE,
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};
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static ssize_t sof_ipc4_priority_mask_dfs_read(struct file *file, char __user *to,
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size_t count, loff_t *ppos)
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{
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struct sof_mtrace_priv *priv = file->private_data;
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int i, ret, offset, remaining;
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char *buf;
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/*
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* one entry (14 char + new line = 15):
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* " 0: 000001ef"
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*
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* 16 * 15 + 1 = 241
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*/
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buf = kzalloc(241, GFP_KERNEL);
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if (!buf)
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return -ENOMEM;
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for (i = 0; i < MAX_ALLOWED_LIBRARIES; i++) {
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offset = strlen(buf);
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remaining = 241 - offset;
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snprintf(buf + offset, remaining, "%2d: 0x%08x\n", i,
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priv->state_info.logs_priorities_mask[i]);
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}
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ret = simple_read_from_buffer(to, count, ppos, buf, strlen(buf));
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kfree(buf);
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return ret;
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}
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static ssize_t sof_ipc4_priority_mask_dfs_write(struct file *file,
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const char __user *from,
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size_t count, loff_t *ppos)
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{
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struct sof_mtrace_priv *priv = file->private_data;
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unsigned int id;
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char *buf;
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u32 mask;
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int ret;
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/*
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* To update Nth mask entry, write:
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* "N,0x1234" or "N,1234" to the debugfs file
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* The mask will be interpreted as hexadecimal number
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*/
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buf = memdup_user_nul(from, count);
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if (IS_ERR(buf))
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return PTR_ERR(buf);
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ret = sscanf(buf, "%u,0x%x", &id, &mask);
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if (ret != 2) {
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ret = sscanf(buf, "%u,%x", &id, &mask);
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if (ret != 2) {
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ret = -EINVAL;
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goto out;
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}
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}
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if (id >= MAX_ALLOWED_LIBRARIES) {
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ret = -EINVAL;
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goto out;
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}
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priv->state_info.logs_priorities_mask[id] = mask;
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ret = count;
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out:
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kfree(buf);
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return ret;
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}
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static const struct file_operations sof_dfs_priority_mask_fops = {
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.open = simple_open,
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.read = sof_ipc4_priority_mask_dfs_read,
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.write = sof_ipc4_priority_mask_dfs_write,
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.llseek = default_llseek,
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.owner = THIS_MODULE,
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};
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static int mtrace_debugfs_create(struct snd_sof_dev *sdev)
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{
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struct sof_mtrace_priv *priv = sdev->fw_trace_data;
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struct dentry *dfs_root;
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char dfs_name[100];
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int i;
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dfs_root = debugfs_create_dir("mtrace", sdev->debugfs_root);
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if (IS_ERR_OR_NULL(dfs_root))
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return 0;
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/* Create files for the logging parameters */
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debugfs_create_u32("aging_timer_period", 0644, dfs_root,
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&priv->state_info.aging_timer_period);
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debugfs_create_u32("fifo_full_timer_period", 0644, dfs_root,
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&priv->state_info.fifo_full_timer_period);
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debugfs_create_file("logs_priorities_mask", 0644, dfs_root, priv,
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&sof_dfs_priority_mask_fops);
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/* Separate log files per core */
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for (i = 0; i < sdev->num_cores; i++) {
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snprintf(dfs_name, sizeof(dfs_name), "core%d", i);
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debugfs_create_file(dfs_name, 0444, dfs_root, &priv->cores[i],
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&sof_dfs_mtrace_fops);
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}
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return 0;
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}
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static int ipc4_mtrace_enable(struct snd_sof_dev *sdev)
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{
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struct sof_mtrace_priv *priv = sdev->fw_trace_data;
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const struct sof_ipc_ops *iops = sdev->ipc->ops;
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struct sof_ipc4_msg msg;
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u64 system_time;
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ktime_t kt;
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int ret;
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if (priv->mtrace_state != SOF_MTRACE_DISABLED)
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return 0;
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msg.primary = SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);
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msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
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msg.primary |= SOF_IPC4_MOD_ID(SOF_IPC4_MOD_INIT_BASEFW_MOD_ID);
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msg.primary |= SOF_IPC4_MOD_INSTANCE(SOF_IPC4_MOD_INIT_BASEFW_INSTANCE_ID);
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msg.extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_FW_PARAM_SYSTEM_TIME);
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/* The system time is in usec, UTC, epoch is 1601-01-01 00:00:00 */
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kt = ktime_add_us(ktime_get_real(), FW_EPOCH_DELTA * USEC_PER_SEC);
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system_time = ktime_to_us(kt);
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msg.data_size = sizeof(system_time);
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msg.data_ptr = &system_time;
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ret = iops->set_get_data(sdev, &msg, msg.data_size, true);
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if (ret)
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return ret;
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msg.extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_FW_PARAM_ENABLE_LOGS);
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priv->state_info.enable = 1;
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msg.data_size = sizeof(priv->state_info);
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msg.data_ptr = &priv->state_info;
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priv->mtrace_state = SOF_MTRACE_INITIALIZING;
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ret = iops->set_get_data(sdev, &msg, msg.data_size, true);
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if (ret) {
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priv->mtrace_state = SOF_MTRACE_DISABLED;
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return ret;
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}
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priv->mtrace_state = SOF_MTRACE_ENABLED;
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return 0;
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}
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static void ipc4_mtrace_disable(struct snd_sof_dev *sdev)
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{
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struct sof_mtrace_priv *priv = sdev->fw_trace_data;
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const struct sof_ipc_ops *iops = sdev->ipc->ops;
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struct sof_ipc4_msg msg;
|
|
int i;
|
|
|
|
if (priv->mtrace_state == SOF_MTRACE_DISABLED)
|
|
return;
|
|
|
|
msg.primary = SOF_IPC4_MSG_TARGET(SOF_IPC4_MODULE_MSG);
|
|
msg.primary |= SOF_IPC4_MSG_DIR(SOF_IPC4_MSG_REQUEST);
|
|
msg.primary |= SOF_IPC4_MOD_ID(SOF_IPC4_MOD_INIT_BASEFW_MOD_ID);
|
|
msg.primary |= SOF_IPC4_MOD_INSTANCE(SOF_IPC4_MOD_INIT_BASEFW_INSTANCE_ID);
|
|
msg.extension = SOF_IPC4_MOD_EXT_MSG_PARAM_ID(SOF_IPC4_FW_PARAM_ENABLE_LOGS);
|
|
|
|
priv->state_info.enable = 0;
|
|
|
|
msg.data_size = sizeof(priv->state_info);
|
|
msg.data_ptr = &priv->state_info;
|
|
iops->set_get_data(sdev, &msg, msg.data_size, true);
|
|
|
|
priv->mtrace_state = SOF_MTRACE_DISABLED;
|
|
|
|
for (i = 0; i < sdev->num_cores; i++) {
|
|
struct sof_mtrace_core_data *core_data = &priv->cores[i];
|
|
|
|
core_data->host_read_ptr = 0;
|
|
core_data->dsp_write_ptr = 0;
|
|
wake_up(&core_data->trace_sleep);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Each DSP core logs to a dedicated slot.
|
|
* Parse the slot descriptors at debug_box offset to find the debug log slots
|
|
* and map them to cores.
|
|
* There are 15 slots and therefore 15 descriptors to check (MAX_MTRACE_SLOTS)
|
|
*/
|
|
static void sof_mtrace_find_core_slots(struct snd_sof_dev *sdev)
|
|
{
|
|
struct sof_mtrace_priv *priv = sdev->fw_trace_data;
|
|
struct sof_mtrace_core_data *core_data;
|
|
u32 slot_desc_type_offset, type, core;
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_MTRACE_SLOTS; i++) {
|
|
/* The type is the second u32 in the slot descriptor */
|
|
slot_desc_type_offset = sdev->debug_box.offset;
|
|
slot_desc_type_offset += SOF_MTRACE_DESCRIPTOR_SIZE * i + sizeof(u32);
|
|
sof_mailbox_read(sdev, slot_desc_type_offset, &type, sizeof(type));
|
|
|
|
if ((type & SOF_MTRACE_SLOT_TYPE_MASK) == SOF_MTRACE_SLOT_DEBUG_LOG) {
|
|
core = type & SOF_MTRACE_SLOT_CORE_MASK;
|
|
|
|
if (core >= sdev->num_cores) {
|
|
dev_dbg(sdev->dev, "core%u is invalid for slot%d\n",
|
|
core, i);
|
|
continue;
|
|
}
|
|
|
|
core_data = &priv->cores[core];
|
|
/*
|
|
* The area reserved for descriptors have the same size
|
|
* as a slot.
|
|
* In other words: slot0 starts at
|
|
* debug_box + SOF_MTRACE_SLOT_SIZE offset
|
|
*/
|
|
core_data->slot_offset = sdev->debug_box.offset;
|
|
core_data->slot_offset += SOF_MTRACE_SLOT_SIZE * (i + 1);
|
|
dev_dbg(sdev->dev, "slot%d is used for core%u\n", i, core);
|
|
if (core_data->delayed_pos_update) {
|
|
sof_ipc4_mtrace_update_pos(sdev, core);
|
|
core_data->delayed_pos_update = false;
|
|
}
|
|
} else if (type) {
|
|
dev_dbg(sdev->dev, "slot%d is not a log slot (%#x)\n", i, type);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int ipc4_mtrace_init(struct snd_sof_dev *sdev)
|
|
{
|
|
struct sof_ipc4_fw_data *ipc4_data = sdev->private;
|
|
struct sof_mtrace_priv *priv;
|
|
int i, ret;
|
|
|
|
if (sdev->fw_trace_data) {
|
|
dev_err(sdev->dev, "fw_trace_data has been already allocated\n");
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (!ipc4_data->mtrace_log_bytes ||
|
|
ipc4_data->mtrace_type != SOF_IPC4_MTRACE_INTEL_CAVS_2) {
|
|
sdev->fw_trace_is_supported = false;
|
|
return 0;
|
|
}
|
|
|
|
priv = devm_kzalloc(sdev->dev, struct_size(priv, cores, sdev->num_cores),
|
|
GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
sdev->fw_trace_data = priv;
|
|
|
|
/* Set initial values for mtrace parameters */
|
|
priv->state_info.aging_timer_period = DEFAULT_AGING_TIMER_PERIOD_MS;
|
|
priv->state_info.fifo_full_timer_period = DEFAULT_FIFO_FULL_TIMER_PERIOD_MS;
|
|
/* Only enable basefw logs initially (index 0 is always basefw) */
|
|
priv->state_info.logs_priorities_mask[0] = DEFAULT_LOGS_PRIORITIES_MASK;
|
|
|
|
for (i = 0; i < sdev->num_cores; i++) {
|
|
struct sof_mtrace_core_data *core_data = &priv->cores[i];
|
|
|
|
init_waitqueue_head(&core_data->trace_sleep);
|
|
mutex_init(&core_data->buffer_lock);
|
|
core_data->sdev = sdev;
|
|
core_data->id = i;
|
|
}
|
|
|
|
ret = ipc4_mtrace_enable(sdev);
|
|
if (ret) {
|
|
/*
|
|
* Mark firmware tracing as not supported and return 0 to not
|
|
* block the whole audio stack
|
|
*/
|
|
sdev->fw_trace_is_supported = false;
|
|
dev_dbg(sdev->dev, "initialization failed, fw tracing is disabled\n");
|
|
return 0;
|
|
}
|
|
|
|
sof_mtrace_find_core_slots(sdev);
|
|
|
|
ret = mtrace_debugfs_create(sdev);
|
|
if (ret)
|
|
ipc4_mtrace_disable(sdev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void ipc4_mtrace_free(struct snd_sof_dev *sdev)
|
|
{
|
|
ipc4_mtrace_disable(sdev);
|
|
}
|
|
|
|
int sof_ipc4_mtrace_update_pos(struct snd_sof_dev *sdev, int core)
|
|
{
|
|
struct sof_mtrace_priv *priv = sdev->fw_trace_data;
|
|
struct sof_mtrace_core_data *core_data;
|
|
|
|
if (!sdev->fw_trace_is_supported ||
|
|
priv->mtrace_state == SOF_MTRACE_DISABLED)
|
|
return 0;
|
|
|
|
if (core >= sdev->num_cores)
|
|
return -EINVAL;
|
|
|
|
core_data = &priv->cores[core];
|
|
|
|
if (core_data->slot_offset == INVALID_SLOT_OFFSET) {
|
|
core_data->delayed_pos_update = true;
|
|
return 0;
|
|
}
|
|
|
|
/* Read out the dsp_write_ptr from the slot for this core */
|
|
sof_mailbox_read(sdev, core_data->slot_offset + sizeof(u32),
|
|
&core_data->dsp_write_ptr, 4);
|
|
core_data->dsp_write_ptr -= core_data->dsp_write_ptr % 4;
|
|
|
|
if (sof_debug_check_flag(SOF_DBG_PRINT_DMA_POSITION_UPDATE_LOGS))
|
|
dev_dbg(sdev->dev, "core%d, host read: %#x, dsp write: %#x",
|
|
core, core_data->host_read_ptr, core_data->dsp_write_ptr);
|
|
|
|
wake_up(&core_data->trace_sleep);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ipc4_mtrace_resume(struct snd_sof_dev *sdev)
|
|
{
|
|
return ipc4_mtrace_enable(sdev);
|
|
}
|
|
|
|
static void ipc4_mtrace_suspend(struct snd_sof_dev *sdev, pm_message_t pm_state)
|
|
{
|
|
ipc4_mtrace_disable(sdev);
|
|
}
|
|
|
|
const struct sof_ipc_fw_tracing_ops ipc4_mtrace_ops = {
|
|
.init = ipc4_mtrace_init,
|
|
.free = ipc4_mtrace_free,
|
|
.suspend = ipc4_mtrace_suspend,
|
|
.resume = ipc4_mtrace_resume,
|
|
};
|