Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 83 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..4fbbf980a
--- /dev/null
+++ b/drivers/gpu/drm/vc4/vc4_debugfs.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  Copyright © 2014 Broadcom
+ */
+
+#include <linux/seq_file.h>
+#include <linux/circ_buf.h>
+#include <linux/ctype.h>
+#include <linux/debugfs.h>
+
+#include "vc4_drv.h"
+#include "vc4_regs.h"
+
+struct vc4_debugfs_info_entry {
+	struct list_head link;
+	struct drm_info_list info;
+};
+
+/**
+ * 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 vc4_debugfs_info_entry *entry;
+
+	debugfs_create_bool("hvs_load_tracker", S_IRUGO | S_IWUSR,
+			    minor->debugfs_root, &vc4->load_tracker_enabled);
+
+	list_for_each_entry(entry, &vc4->debugfs_list, link) {
+		drm_debugfs_create_files(&entry->info, 1,
+					 minor->debugfs_root, minor);
+	}
+}
+
+static int vc4_debugfs_regset32(struct seq_file *m, void *unused)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct debugfs_regset32 *regset = node->info_ent->data;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	drm_print_regset32(&p, regset);
+
+	return 0;
+}
+
+/**
+ * Registers a debugfs file with a callback function for a vc4 component.
+ *
+ * This is like drm_debugfs_create_files(), but that can only be
+ * called a given DRM minor, while the various VC4 components want to
+ * register their debugfs files during the component bind process.  We
+ * track the request and delay it to be called on each minor during
+ * vc4_debugfs_init().
+ */
+void vc4_debugfs_add_file(struct drm_device *dev,
+			  const char *name,
+			  int (*show)(struct seq_file*, void*),
+			  void *data)
+{
+	struct vc4_dev *vc4 = to_vc4_dev(dev);
+
+	struct vc4_debugfs_info_entry *entry =
+		devm_kzalloc(dev->dev, sizeof(*entry), GFP_KERNEL);
+
+	if (!entry)
+		return;
+
+	entry->info.name = name;
+	entry->info.show = show;
+	entry->info.data = data;
+
+	list_add(&entry->link, &vc4->debugfs_list);
+}
+
+void vc4_debugfs_add_regset32(struct drm_device *drm,
+			      const char *name,
+			      struct debugfs_regset32 *regset)
+{
+	vc4_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset);
+}