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| author | Wachowski, Karol <karol.wachowski@intel.com> | 2024-05-13 14:04:26 +0200 |
|---|---|---|
| committer | Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> | 2024-05-15 07:42:20 +0200 |
| commit | 68ca7b06b5b06626a0cf41170c5d1b91aa7d5281 (patch) | |
| tree | 52e3d1ede39e5fa6120f243098a3f5b5efb25996 /drivers/accel | |
| parent | accel/ivpu: Implement support for hardware scheduler (diff) | |
| download | linux-68ca7b06b5b06626a0cf41170c5d1b91aa7d5281.tar.xz linux-68ca7b06b5b06626a0cf41170c5d1b91aa7d5281.zip | |
accel/ivpu: Add resume engine support
Create debugfs interface that triggers sending resume engine IPC
command to VPU. It is used to test engine resume functionality in
driver user space tests.
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513120431.3187212-8-jacek.lawrynowicz@linux.intel.com
Diffstat (limited to 'drivers/accel')
| -rw-r--r-- | drivers/accel/ivpu/ivpu_debugfs.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c index e07e447d08d1..6ff967e595cf 100644 --- a/drivers/accel/ivpu/ivpu_debugfs.c +++ b/drivers/accel/ivpu/ivpu_debugfs.c @@ -335,6 +335,28 @@ static const struct file_operations ivpu_reset_engine_fops = { .write = ivpu_reset_engine_fn, }; +static ssize_t +ivpu_resume_engine_fn(struct file *file, const char __user *user_buf, size_t size, loff_t *pos) +{ + struct ivpu_device *vdev = file->private_data; + + if (!size) + return -EINVAL; + + if (ivpu_jsm_hws_resume_engine(vdev, DRM_IVPU_ENGINE_COMPUTE)) + return -ENODEV; + if (ivpu_jsm_hws_resume_engine(vdev, DRM_IVPU_ENGINE_COPY)) + return -ENODEV; + + return size; +} + +static const struct file_operations ivpu_resume_engine_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .write = ivpu_resume_engine_fn, +}; + void ivpu_debugfs_init(struct ivpu_device *vdev) { struct dentry *debugfs_root = vdev->drm.debugfs_root; @@ -358,6 +380,8 @@ void ivpu_debugfs_init(struct ivpu_device *vdev) debugfs_create_file("reset_engine", 0200, debugfs_root, vdev, &ivpu_reset_engine_fops); + debugfs_create_file("resume_engine", 0200, debugfs_root, vdev, + &ivpu_resume_engine_fops); if (ivpu_hw_gen(vdev) >= IVPU_HW_40XX) debugfs_create_file("fw_profiling_freq_drive", 0200, |