From: Tomasz Rusinowicz Date: Mon, 13 May 2024 12:04:29 +0000 (+0200) Subject: accel/ivpu: Configure fw logging using debugfs X-Git-Tag: v6.11-rc1~141^2~24^2~144 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f2eb89159933001738443717e14c7a90ede0f43;p=thirdparty%2Flinux.git accel/ivpu: Configure fw logging using debugfs Add fw_dyndbg file that can be used to control FW logging. Signed-off-by: Tomasz Rusinowicz Signed-off-by: Jacek Lawrynowicz Link: https://patchwork.freedesktop.org/patch/msgid/20240513120431.3187212-11-jacek.lawrynowicz@linux.intel.com --- diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c index 6ff967e595cf5..b6c7d6a53c79a 100644 --- a/drivers/accel/ivpu/ivpu_debugfs.c +++ b/drivers/accel/ivpu/ivpu_debugfs.c @@ -145,6 +145,30 @@ static const struct file_operations dvfs_mode_fops = { .write = dvfs_mode_fops_write, }; +static ssize_t +fw_dyndbg_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos) +{ + struct ivpu_device *vdev = file->private_data; + char buffer[VPU_DYNDBG_CMD_MAX_LEN] = {}; + int ret; + + if (size >= VPU_DYNDBG_CMD_MAX_LEN) + return -EINVAL; + + ret = strncpy_from_user(buffer, user_buf, size); + if (ret < 0) + return ret; + + ivpu_jsm_dyndbg_control(vdev, buffer, size); + return size; +} + +static const struct file_operations fw_dyndbg_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = fw_dyndbg_fops_write, +}; + static int fw_log_show(struct seq_file *s, void *v) { struct ivpu_device *vdev = s->private; @@ -369,6 +393,8 @@ void ivpu_debugfs_init(struct ivpu_device *vdev) debugfs_create_file("dvfs_mode", 0200, debugfs_root, vdev, &dvfs_mode_fops); + debugfs_create_file("fw_dyndbg", 0200, debugfs_root, vdev, + &fw_dyndbg_fops); debugfs_create_file("fw_log", 0644, debugfs_root, vdev, &fw_log_fops); debugfs_create_file("fw_trace_destination_mask", 0200, debugfs_root, vdev,