diff options
| author |  Tomasz Rusinowicz <tomasz.rusinowicz@intel.com>
| 2023-10-28 15:34:07 +0200 |
|---|---|---|
| committer |  Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
| 2023-10-30 11:06:09 +0100 |
| commit | f13108fc7bae7085616805ed176b2114cdf4bd55 (patch) | |
| tree | 5e58734fc285dc69889c3d05434f8980f93e5d09 /drivers/accel/ivpu/ivpu_debugfs.c | |
| parent | accel/ivpu: Remove unneeded drm_driver declaration (diff) | |
| download | linux-f13108fc7bae7085616805ed176b2114cdf4bd55.tar.gz linux-f13108fc7bae7085616805ed176b2114cdf4bd55.tar.bz2 linux-f13108fc7bae7085616805ed176b2114cdf4bd55.zip | |
accel/ivpu: Add dvfs_mode file to debugfs
Add new debugfs file to set dvfs_mode FW boot parameter and restart
the FW to allow experimenting with DVFS (dynamic voltage & frequency
scaling).
Signed-off-by: Tomasz Rusinowicz <tomasz.rusinowicz@intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231028133415.1169975-4-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_debugfs.c')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_debugfs.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c index ea453b985b49..6e0d56823024 100644 --- a/drivers/accel/ivpu/ivpu_debugfs.c +++ b/drivers/accel/ivpu/ivpu_debugfs.c @@ -115,6 +115,31 @@ static const struct drm_debugfs_info vdev_debugfs_list[] = { {"reset_pending", reset_pending_show, 0}, }; +static ssize_t +dvfs_mode_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos) +{ + struct ivpu_device *vdev = file->private_data; + struct ivpu_fw_info *fw = vdev->fw; + u32 dvfs_mode; + int ret; + + ret = kstrtou32_from_user(user_buf, size, 0, &dvfs_mode); + if (ret < 0) + return ret; + + fw->dvfs_mode = dvfs_mode; + + ivpu_pm_schedule_recovery(vdev); + + return size; +} + +static const struct file_operations dvfs_mode_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = dvfs_mode_fops_write, +}; + static int fw_log_show(struct seq_file *s, void *v) { struct ivpu_device *vdev = s->private; @@ -280,6 +305,9 @@ void ivpu_debugfs_init(struct ivpu_device *vdev) debugfs_create_file("force_recovery", 0200, debugfs_root, vdev, &ivpu_force_recovery_fops); + debugfs_create_file("dvfs_mode", 0200, debugfs_root, vdev, + &dvfs_mode_fops); + debugfs_create_file("fw_log", 0644, debugfs_root, vdev, &fw_log_fops); debugfs_create_file("fw_trace_destination_mask", 0200, debugfs_root, vdev, |