diff options
| author | Krystian Pradzynski <krystian.pradzynski@linux.intel.com> | 2023-10-28 18:59:29 +0300 |
|---|---|---|
| committer | Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> | 2023-10-31 17:49:35 +0300 |
| commit | bfc87f90614523612ae7e94d06798e82bc78ade6 (patch) | |
| tree | 3a4154efa24cfa8e643ef3a156822138e79adf4f /drivers/accel/ivpu/ivpu_debugfs.c | |
| parent | 9d7c8c066916f231ca0ed4e4fce6c4b58ca3e451 (diff) | |
| download | linux-bfc87f90614523612ae7e94d06798e82bc78ade6.tar.xz | |
accel/ivpu/40xx: Allow to change profiling frequency
Profiling freq is a debug firmware feature. It switches default clock
to higher resolution for fine-grained and more accurate firmware task
profiling. We already configure it during boot up of VPU4.
Add debugfs knob and helpers per HW generation that allow to change it.
For vpu37xx the implementation is empty as profiling frequency can only
be changed on VPU4 or newer.
Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.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/20231028155936.1183342-2-stanislaw.gruszka@linux.intel.com
Diffstat (limited to 'drivers/accel/ivpu/ivpu_debugfs.c')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_debugfs.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c index 6e0d56823024..19035230563d 100644 --- a/drivers/accel/ivpu/ivpu_debugfs.c +++ b/drivers/accel/ivpu/ivpu_debugfs.c @@ -14,6 +14,7 @@ #include "ivpu_fw.h" #include "ivpu_fw_log.h" #include "ivpu_gem.h" +#include "ivpu_hw.h" #include "ivpu_jsm_msg.h" #include "ivpu_pm.h" @@ -177,6 +178,30 @@ static const struct file_operations fw_log_fops = { }; static ssize_t +fw_profiling_freq_fops_write(struct file *file, const char __user *user_buf, + size_t size, loff_t *pos) +{ + struct ivpu_device *vdev = file->private_data; + bool enable; + int ret; + + ret = kstrtobool_from_user(user_buf, size, &enable); + if (ret < 0) + return ret; + + ivpu_hw_profiling_freq_drive(vdev, enable); + ivpu_pm_schedule_recovery(vdev); + + return size; +} + +static const struct file_operations fw_profiling_freq_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = fw_profiling_freq_fops_write, +}; + +static ssize_t fw_trace_destination_mask_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos) { @@ -319,4 +344,8 @@ void ivpu_debugfs_init(struct ivpu_device *vdev) debugfs_create_file("reset_engine", 0200, debugfs_root, vdev, &ivpu_reset_engine_fops); + + if (ivpu_hw_gen(vdev) >= IVPU_HW_40XX) + debugfs_create_file("fw_profiling_freq_drive", 0200, + debugfs_root, vdev, &fw_profiling_freq_fops); } |