1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c
new file mode 100644
index 000000000..19cda4f91
--- /dev/null
+++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright © 2014 Broadcom
+ */
+
+#include <drm/drm_drv.h>
+
+#include <linux/seq_file.h>
+#include <linux/circ_buf.h>
+#include <linux/ctype.h>
+#include <linux/debugfs.h>
+#include <linux/platform_device.h>
+
+#include "vc4_drv.h"
+#include "vc4_regs.h"
+
+/*
+ * Called at drm_dev_register() time on each of the minors registered
+ * by the DRM device, to attach the debugfs files.
+ */
+void
+vc4_debugfs_init(struct drm_minor *minor)
+{
+	struct vc4_dev *vc4 = to_vc4_dev(minor->dev);
+	struct drm_device *drm = &vc4->base;
+
+	drm_WARN_ON(drm, vc4_hvs_debugfs_init(minor));
+
+	if (vc4->v3d) {
+		drm_WARN_ON(drm, vc4_bo_debugfs_init(minor));
+		drm_WARN_ON(drm, vc4_v3d_debugfs_init(minor));
+	}
+}
+
+static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct drm_device *drm = node->minor->dev;
+	struct debugfs_regset32 *regset = node->info_ent->data;
+	struct drm_printer p = drm_seq_file_printer(m);
+	int idx;
+
+	if (!drm_dev_enter(drm, &idx))
+		return -ENODEV;
+
+	drm_print_regset32(&p, regset);
+
+	drm_dev_exit(idx);
+
+	return 0;
+}
+
+int vc4_debugfs_add_file(struct drm_minor *minor,
+			 const char *name,
+			 int (*show)(struct seq_file*, void*),
+			 void *data)
+{
+	struct drm_device *dev = minor->dev;
+	struct dentry *root = minor->debugfs_root;
+	struct drm_info_list *file;
+
+	file = drmm_kzalloc(dev, sizeof(*file), GFP_KERNEL);
+	if (!file)
+		return -ENOMEM;
+
+	file->name = name;
+	file->show = show;
+	file->data = data;
+
+	drm_debugfs_create_files(file, 1, root, minor);
+
+	return 0;
+}
+
+int vc4_debugfs_add_regset32(struct drm_minor *minor,
+			     const char *name,
+			     struct debugfs_regset32 *regset)
+{
+	return vc4_debugfs_add_file(minor, name, vc4_debugfs_regset32, regset);
+}