--- /dev/null
+/* 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) 2020 Intel Corporation. All rights reserved.
+ *
+ * Author: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
+ */
+
+#ifndef __INCLUDE_SOUND_SOF_DEBUG_H__
+#define __INCLUDE_SOUND_SOF_DEBUG_H__
+
+#include <sound/sof/header.h>
+
+/** ABI3.18 */
+enum sof_ipc_dbg_mem_zone {
+ SOF_IPC_MEM_ZONE_SYS = 0, /**< System zone */
+ SOF_IPC_MEM_ZONE_SYS_RUNTIME = 1, /**< System-runtime zone */
+ SOF_IPC_MEM_ZONE_RUNTIME = 2, /**< Runtime zone */
+ SOF_IPC_MEM_ZONE_BUFFER = 3, /**< Buffer zone */
+};
+
+/** ABI3.18 */
+struct sof_ipc_dbg_mem_usage_elem {
+ uint32_t zone; /**< see sof_ipc_dbg_mem_zone */
+ uint32_t id; /**< heap index within zone */
+ uint32_t used; /**< number of bytes used in zone */
+ uint32_t free; /**< number of bytes free to use within zone */
+ uint32_t reserved; /**< for future use */
+} __packed;
+
+/** ABI3.18 */
+struct sof_ipc_dbg_mem_usage {
+ struct sof_ipc_reply rhdr; /**< generic IPC reply header */
+ uint32_t reserved[4]; /**< reserved for future use */
+ uint32_t num_elems; /**< elems[] counter */
+ struct sof_ipc_dbg_mem_usage_elem elems[]; /**< memory usage information */
+} __packed;
+
+#endif
#include <linux/debugfs.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
+#include <sound/sof/ext_manifest.h>
+#include <sound/sof/debug.h>
#include "sof-priv.h"
#include "ops.h"
}
EXPORT_SYMBOL_GPL(snd_sof_debugfs_buf_item);
+static int memory_info_update(struct snd_sof_dev *sdev, char *buf, size_t buff_size)
+{
+ struct sof_ipc_cmd_hdr msg = {
+ .size = sizeof(struct sof_ipc_cmd_hdr),
+ .cmd = SOF_IPC_GLB_DEBUG | SOF_IPC_DEBUG_MEM_USAGE,
+ };
+ struct sof_ipc_dbg_mem_usage *reply;
+ int len;
+ int ret;
+ int i;
+
+ reply = kmalloc(SOF_IPC_MSG_MAX_SIZE, GFP_KERNEL);
+ if (!reply)
+ return -ENOMEM;
+
+ 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.cmd, &msg, msg.size, reply, SOF_IPC_MSG_MAX_SIZE);
+ pm_runtime_mark_last_busy(sdev->dev);
+ pm_runtime_put_autosuspend(sdev->dev);
+ if (ret < 0 || reply->rhdr.error < 0) {
+ ret = min(ret, reply->rhdr.error);
+ dev_err(sdev->dev, "error: reading memory info failed, %d\n", ret);
+ goto error;
+ }
+
+ if (struct_size(reply, elems, reply->num_elems) != reply->rhdr.hdr.size) {
+ dev_err(sdev->dev, "error: invalid memory info ipc struct size, %d\n",
+ reply->rhdr.hdr.size);
+ ret = -EINVAL;
+ goto error;
+ }
+
+ for (i = 0, len = 0; i < reply->num_elems; i++) {
+ ret = snprintf(buf + len, buff_size - len, "zone %d.%d used %#8x free %#8x\n",
+ reply->elems[i].zone, reply->elems[i].id,
+ reply->elems[i].used, reply->elems[i].free);
+ if (ret < 0)
+ goto error;
+ len += ret;
+ }
+
+ ret = len;
+error:
+ kfree(reply);
+ return ret;
+}
+
+static ssize_t memory_info_read(struct file *file, char __user *to, size_t count, loff_t *ppos)
+{
+ struct snd_sof_dfsentry *dfse = file->private_data;
+ struct snd_sof_dev *sdev = dfse->sdev;
+ int data_length;
+
+ /* read memory info from FW only once for each file read */
+ if (!*ppos) {
+ dfse->buf_data_size = 0;
+ data_length = memory_info_update(sdev, dfse->buf, dfse->size);
+ if (data_length < 0)
+ return data_length;
+ dfse->buf_data_size = data_length;
+ }
+
+ return simple_read_from_buffer(to, count, ppos, dfse->buf, dfse->buf_data_size);
+}
+
+static int memory_info_open(struct inode *inode, struct file *file)
+{
+ struct snd_sof_dfsentry *dfse = inode->i_private;
+ struct snd_sof_dev *sdev = dfse->sdev;
+
+ file->private_data = dfse;
+
+ /* allocate buffer memory only in first open run, to save memory when unused */
+ if (!dfse->buf) {
+ dfse->buf = devm_kmalloc(sdev->dev, PAGE_SIZE, GFP_KERNEL);
+ if (!dfse->buf)
+ return -ENOMEM;
+ dfse->size = PAGE_SIZE;
+ }
+
+ return 0;
+}
+
+static const struct file_operations memory_info_fops = {
+ .open = memory_info_open,
+ .read = memory_info_read,
+ .llseek = default_llseek,
+};
+
+int snd_sof_dbg_memory_info_init(struct snd_sof_dev *sdev)
+{
+ struct snd_sof_dfsentry *dfse;
+
+ dfse = devm_kzalloc(sdev->dev, sizeof(*dfse), GFP_KERNEL);
+ if (!dfse)
+ return -ENOMEM;
+
+ /* don't allocate buffer before first usage, to save memory when unused */
+ dfse->type = SOF_DFSENTRY_TYPE_BUF;
+ dfse->sdev = sdev;
+
+ debugfs_create_file("memory_info", 0444, sdev->debugfs_root, dfse, &memory_info_fops);
+
+ /* add to dfsentry list */
+ list_add(&dfse->list, &sdev->dfsentry_list);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_sof_dbg_memory_info_init);
+
int snd_sof_dbg_init(struct snd_sof_dev *sdev)
{
const struct snd_sof_dsp_ops *ops = sof_ops(sdev);
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