diff options
Diffstat (limited to 'sound/soc/sof/ipc4-mtrace.c')
| -rw-r--r-- | sound/soc/sof/ipc4-mtrace.c | 47 |
1 files changed, 19 insertions, 28 deletions
diff --git a/sound/soc/sof/ipc4-mtrace.c b/sound/soc/sof/ipc4-mtrace.c index 2b4659a1768e..aa5b78604db6 100644 --- a/sound/soc/sof/ipc4-mtrace.c +++ b/sound/soc/sof/ipc4-mtrace.c @@ -1,9 +1,10 @@ // SPDX-License-Identifier: GPL-2.0-only // -// Copyright(c) 2022 Intel Corporation. All rights reserved. +// Copyright(c) 2022 Intel Corporation #include <linux/debugfs.h> #include <linux/sched/signal.h> +#include <linux/sched/clock.h> #include <sound/sof/ipc4/header.h> #include "sof-priv.h" #include "ipc4-priv.h" @@ -41,24 +42,12 @@ * The two pointers are offsets within the buffer. */ -#define SOF_MTRACE_DESCRIPTOR_SIZE 12 /* 3 x u32 */ - #define FW_EPOCH_DELTA 11644473600LL -#define INVALID_SLOT_OFFSET 0xffffffff #define MAX_ALLOWED_LIBRARIES 16 -#define MAX_MTRACE_SLOTS 15 - -#define SOF_MTRACE_PAGE_SIZE 0x1000 -#define SOF_MTRACE_SLOT_SIZE SOF_MTRACE_PAGE_SIZE - -/* debug log slot types */ -#define SOF_MTRACE_SLOT_UNUSED 0x00000000 -#define SOF_MTRACE_SLOT_CRITICAL_LOG 0x54524300 /* byte 0: core ID */ -#define SOF_MTRACE_SLOT_DEBUG_LOG 0x474f4c00 /* byte 0: core ID */ -#define SOF_MTRACE_SLOT_GDB_STUB 0x42444700 -#define SOF_MTRACE_SLOT_TELEMETRY 0x4c455400 -#define SOF_MTRACE_SLOT_BROKEN 0x44414544 + +#define SOF_IPC4_INVALID_SLOT_OFFSET 0xffffffff + /* for debug and critical types */ #define SOF_MTRACE_SLOT_CORE_MASK GENMASK(7, 0) #define SOF_MTRACE_SLOT_TYPE_MASK GENMASK(31, 8) @@ -140,7 +129,7 @@ static int sof_ipc4_mtrace_dfs_open(struct inode *inode, struct file *file) if (unlikely(ret)) goto out; - core_data->log_buffer = kmalloc(SOF_MTRACE_SLOT_SIZE, GFP_KERNEL); + core_data->log_buffer = kmalloc(SOF_IPC4_DEBUG_SLOT_SIZE, GFP_KERNEL); if (!core_data->log_buffer) { debugfs_file_put(file->f_path.dentry); ret = -ENOMEM; @@ -212,13 +201,13 @@ static ssize_t sof_ipc4_mtrace_dfs_read(struct file *file, char __user *buffer, return 0; } - if (core_data->slot_offset == INVALID_SLOT_OFFSET) + if (core_data->slot_offset == SOF_IPC4_INVALID_SLOT_OFFSET) return 0; /* The log data buffer starts after the two pointer in the slot */ log_buffer_offset = core_data->slot_offset + (sizeof(u32) * 2); /* The log data size excludes the pointers */ - log_buffer_size = SOF_MTRACE_SLOT_SIZE - (sizeof(u32) * 2); + log_buffer_size = SOF_IPC4_DEBUG_SLOT_SIZE - (sizeof(u32) * 2); read_ptr = core_data->host_read_ptr; write_ptr = core_data->dsp_write_ptr; @@ -424,7 +413,6 @@ static int ipc4_mtrace_enable(struct snd_sof_dev *sdev) const struct sof_ipc_ops *iops = sdev->ipc->ops; struct sof_ipc4_msg msg; u64 system_time; - ktime_t kt; int ret; if (priv->mtrace_state != SOF_MTRACE_DISABLED) @@ -436,9 +424,12 @@ static int ipc4_mtrace_enable(struct snd_sof_dev *sdev) 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_SYSTEM_TIME); - /* The system time is in usec, UTC, epoch is 1601-01-01 00:00:00 */ - kt = ktime_add_us(ktime_get_real(), FW_EPOCH_DELTA * USEC_PER_SEC); - system_time = ktime_to_us(kt); + /* + * local_clock() is used to align with dmesg, so both kernel and firmware logs have + * the same base and a minor delta due to the IPC. system time is in us format but + * local_clock() returns the time in ns, so convert to ns. + */ + system_time = div64_u64(local_clock(), NSEC_PER_USEC); msg.data_size = sizeof(system_time); msg.data_ptr = &system_time; ret = iops->set_get_data(sdev, &msg, msg.data_size, true); @@ -510,13 +501,13 @@ static void sof_mtrace_find_core_slots(struct snd_sof_dev *sdev) u32 slot_desc_type_offset, type, core; int i; - for (i = 0; i < MAX_MTRACE_SLOTS; i++) { + for (i = 0; i < SOF_IPC4_MAX_DEBUG_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); + slot_desc_type_offset += SOF_IPC4_DEBUG_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) { + if ((type & SOF_MTRACE_SLOT_TYPE_MASK) == SOF_IPC4_DEBUG_SLOT_DEBUG_LOG) { core = type & SOF_MTRACE_SLOT_CORE_MASK; if (core >= sdev->num_cores) { @@ -533,7 +524,7 @@ static void sof_mtrace_find_core_slots(struct snd_sof_dev *sdev) * 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); + core_data->slot_offset += SOF_IPC4_DEBUG_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); @@ -633,7 +624,7 @@ int sof_ipc4_mtrace_update_pos(struct snd_sof_dev *sdev, int core) core_data = &priv->cores[core]; - if (core_data->slot_offset == INVALID_SLOT_OFFSET) { + if (core_data->slot_offset == SOF_IPC4_INVALID_SLOT_OFFSET) { core_data->delayed_pos_update = true; return 0; } |