1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/gpu/drm/loongson/lsdc_debugfs.c b/drivers/gpu/drm/loongson/lsdc_debugfs.c
new file mode 100644
index 000000000000..b9c2e6b1701f
--- /dev/null
+++ b/drivers/gpu/drm/loongson/lsdc_debugfs.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+#include <drm/drm_debugfs.h>
+
+#include "lsdc_benchmark.h"
+#include "lsdc_drv.h"
+#include "lsdc_gem.h"
+#include "lsdc_probe.h"
+#include "lsdc_ttm.h"
+
+/* device level debugfs */
+
+static int lsdc_identify(struct seq_file *m, void *arg)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
+	const struct loongson_gfx_desc *gfx = to_loongson_gfx(ldev->descp);
+	u8 impl, rev;
+
+	loongson_cpu_get_prid(&impl, &rev);
+
+	seq_printf(m, "Running on cpu 0x%x, cpu revision: 0x%x\n",
+		   impl, rev);
+
+	seq_printf(m, "Contained in: %s\n", gfx->model);
+
+	return 0;
+}
+
+static int lsdc_show_mm(struct seq_file *m, void *arg)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct drm_device *ddev = node->minor->dev;
+	struct drm_printer p = drm_seq_file_printer(m);
+
+	drm_mm_print(&ddev->vma_offset_manager->vm_addr_space_mm, &p);
+
+	return 0;
+}
+
+static int lsdc_show_gfxpll_clock(struct seq_file *m, void *arg)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
+	struct drm_printer printer = drm_seq_file_printer(m);
+	struct loongson_gfxpll *gfxpll = ldev->gfxpll;
+
+	gfxpll->funcs->print(gfxpll, &printer, true);
+
+	return 0;
+}
+
+static int lsdc_show_benchmark(struct seq_file *m, void *arg)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
+	struct drm_printer printer = drm_seq_file_printer(m);
+
+	lsdc_show_benchmark_copy(ldev, &printer);
+
+	return 0;
+}
+
+static int lsdc_pdev_enable_io_mem(struct seq_file *m, void *arg)
+{
+	struct drm_info_node *node = (struct drm_info_node *)m->private;
+	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
+	u16 cmd;
+
+	pci_read_config_word(ldev->dc, PCI_COMMAND, &cmd);
+
+	seq_printf(m, "PCI_COMMAND: 0x%x\n", cmd);
+
+	cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+
+	pci_write_config_word(ldev->dc, PCI_COMMAND, cmd);
+
+	pci_read_config_word(ldev->dc, PCI_COMMAND, &cmd);
+
+	seq_printf(m, "PCI_COMMAND: 0x%x\n", cmd);
+
+	return 0;
+}
+
+static struct drm_info_list lsdc_debugfs_list[] = {
+	{ "benchmark",   lsdc_show_benchmark, 0, NULL },
+	{ "bos",         lsdc_show_buffer_object, 0, NULL },
+	{ "chips",       lsdc_identify, 0, NULL },
+	{ "clocks",      lsdc_show_gfxpll_clock, 0, NULL },
+	{ "dc_enable",   lsdc_pdev_enable_io_mem, 0, NULL },
+	{ "mm",          lsdc_show_mm, 0, NULL },
+};
+
+void lsdc_debugfs_init(struct drm_minor *minor)
+{
+	struct drm_device *ddev = minor->dev;
+	struct lsdc_device *ldev = to_lsdc(ddev);
+	unsigned int n = ARRAY_SIZE(lsdc_debugfs_list);
+	unsigned int i;
+
+	for (i = 0; i < n; ++i)
+		lsdc_debugfs_list[i].data = ldev;
+
+	drm_debugfs_create_files(lsdc_debugfs_list, n, minor->debugfs_root, minor);
+
+	lsdc_ttm_debugfs_init(ldev);
+}