Add new debugfs files to validate device recovery functionality.
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@xxxxxxxxxxxxxxx>
---
drivers/accel/ivpu/ivpu_debugfs.c | 41 +++++++++++++++++++++++++++++++
drivers/accel/ivpu/ivpu_pm.c | 1 +
drivers/accel/ivpu/ivpu_pm.h | 1 +
3 files changed, 43 insertions(+)
diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c
index a9180fae43b6..e2502d2b53c0 100644
--- a/drivers/accel/ivpu/ivpu_debugfs.c
+++ b/drivers/accel/ivpu/ivpu_debugfs.c
@@ -77,11 +77,31 @@ static int last_bootmode_show(struct seq_file *s, void *v)
return 0;
}
+static int reset_counter_show(struct seq_file *s, void *v)
+{
+ struct drm_info_node *node = (struct drm_info_node *)s->private;
+ struct ivpu_device *vdev = to_ivpu_device(node->minor->dev);
+
+ seq_printf(s, "%d\n", atomic_read(&vdev->pm->reset_counter));
+ return 0;
+}
+
+static int reset_pending_show(struct seq_file *s, void *v)
+{
+ struct drm_info_node *node = (struct drm_info_node *)s->private;
+ struct ivpu_device *vdev = to_ivpu_device(node->minor->dev);
+
+ seq_printf(s, "%d\n", atomic_read(&vdev->pm->in_reset));
+ return 0;
+}
+
static const struct drm_info_list vdev_debugfs_list[] = {
{"bo_list", bo_list_show, 0},
{"fw_trace_capability", fw_trace_capability_show, 0},
{"fw_trace_config", fw_trace_config_show, 0},
{"last_bootmode", last_bootmode_show, 0},
+ {"reset_counter", reset_counter_show, 0},
+ {"reset_pending", reset_pending_show, 0},
};
static int fw_log_show(struct seq_file *s, void *v)
@@ -216,6 +236,24 @@ ivpu_reset_engine_fn(struct file *file, const char __user *user_buf, size_t size
return size;
}
+static ssize_t
+ivpu_force_recovery_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;
+
+ ivpu_pm_schedule_recovery(vdev);
+ return size;
+}
+
+static const struct file_operations ivpu_force_recovery_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .write = ivpu_force_recovery_fn,
+};
+
static const struct file_operations ivpu_reset_engine_fops = {
.owner = THIS_MODULE,
.open = simple_open,
@@ -229,6 +267,9 @@ void ivpu_debugfs_init(struct drm_minor *minor)
drm_debugfs_create_files(vdev_debugfs_list, ARRAY_SIZE(vdev_debugfs_list),
minor->debugfs_root, minor);
+ debugfs_create_file("force_recovery", 0200, minor->debugfs_root, vdev,
+ &ivpu_force_recovery_fops);
+
debugfs_create_file("fw_log", 0644, minor->debugfs_root, vdev,
&fw_log_fops);
debugfs_create_file("fw_trace_destination_mask", 0200, minor->debugfs_root, vdev,
diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index aa4d56dc52b3..e6f27daf5560 100644
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -259,6 +259,7 @@ void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev)
pm_runtime_get_sync(vdev->drm.dev);
ivpu_dbg(vdev, PM, "Pre-reset..\n");
+ atomic_inc(&vdev->pm->reset_counter);
atomic_set(&vdev->pm->in_reset, 1);
ivpu_shutdown(vdev);
ivpu_pm_prepare_cold_boot(vdev);
diff --git a/drivers/accel/ivpu/ivpu_pm.h b/drivers/accel/ivpu/ivpu_pm.h
index baca98187255..fd4eada1290f 100644
--- a/drivers/accel/ivpu/ivpu_pm.h
+++ b/drivers/accel/ivpu/ivpu_pm.h
@@ -14,6 +14,7 @@ struct ivpu_pm_info {
struct ivpu_device *vdev;
struct work_struct recovery_work;
atomic_t in_reset;
+ atomic_t reset_counter;
bool is_warmboot;
u32 suspend_reschedule_counter;
};
--
2.25.1
