1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2023 Loongson Technology Corporation Limited
4 */
5
6#include <drm/drm_debugfs.h>
7
8#include "lsdc_benchmark.h"
9#include "lsdc_drv.h"
10#include "lsdc_gem.h"
11#include "lsdc_probe.h"
12#include "lsdc_ttm.h"
13
14/* device level debugfs */
15
16static int lsdc_identify(struct seq_file *m, void *arg)
17{
18	struct drm_info_node *node = (struct drm_info_node *)m->private;
19	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
20	const struct loongson_gfx_desc *gfx = to_loongson_gfx(ldev->descp);
21	u8 impl, rev;
22
23	loongson_cpu_get_prid(&impl, &rev);
24
25	seq_printf(m, "Running on cpu 0x%x, cpu revision: 0x%x\n",
26		   impl, rev);
27
28	seq_printf(m, "Contained in: %s\n", gfx->model);
29
30	return 0;
31}
32
33static int lsdc_show_mm(struct seq_file *m, void *arg)
34{
35	struct drm_info_node *node = (struct drm_info_node *)m->private;
36	struct drm_device *ddev = node->minor->dev;
37	struct drm_printer p = drm_seq_file_printer(m);
38
39	drm_mm_print(&ddev->vma_offset_manager->vm_addr_space_mm, &p);
40
41	return 0;
42}
43
44static int lsdc_show_gfxpll_clock(struct seq_file *m, void *arg)
45{
46	struct drm_info_node *node = (struct drm_info_node *)m->private;
47	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
48	struct drm_printer printer = drm_seq_file_printer(m);
49	struct loongson_gfxpll *gfxpll = ldev->gfxpll;
50
51	gfxpll->funcs->print(gfxpll, &printer, true);
52
53	return 0;
54}
55
56static int lsdc_show_benchmark(struct seq_file *m, void *arg)
57{
58	struct drm_info_node *node = (struct drm_info_node *)m->private;
59	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
60	struct drm_printer printer = drm_seq_file_printer(m);
61
62	lsdc_show_benchmark_copy(ldev, &printer);
63
64	return 0;
65}
66
67static int lsdc_pdev_enable_io_mem(struct seq_file *m, void *arg)
68{
69	struct drm_info_node *node = (struct drm_info_node *)m->private;
70	struct lsdc_device *ldev = (struct lsdc_device *)node->info_ent->data;
71	u16 cmd;
72
73	pci_read_config_word(ldev->dc, PCI_COMMAND, &cmd);
74
75	seq_printf(m, "PCI_COMMAND: 0x%x\n", cmd);
76
77	cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
78
79	pci_write_config_word(ldev->dc, PCI_COMMAND, cmd);
80
81	pci_read_config_word(ldev->dc, PCI_COMMAND, &cmd);
82
83	seq_printf(m, "PCI_COMMAND: 0x%x\n", cmd);
84
85	return 0;
86}
87
88static struct drm_info_list lsdc_debugfs_list[] = {
89	{ "benchmark",   lsdc_show_benchmark, 0, NULL },
90	{ "bos",         lsdc_show_buffer_object, 0, NULL },
91	{ "chips",       lsdc_identify, 0, NULL },
92	{ "clocks",      lsdc_show_gfxpll_clock, 0, NULL },
93	{ "dc_enable",   lsdc_pdev_enable_io_mem, 0, NULL },
94	{ "mm",          lsdc_show_mm, 0, NULL },
95};
96
97void lsdc_debugfs_init(struct drm_minor *minor)
98{
99	struct drm_device *ddev = minor->dev;
100	struct lsdc_device *ldev = to_lsdc(ddev);
101	unsigned int n = ARRAY_SIZE(lsdc_debugfs_list);
102	unsigned int i;
103
104	for (i = 0; i < n; ++i)
105		lsdc_debugfs_list[i].data = ldev;
106
107	drm_debugfs_create_files(lsdc_debugfs_list, n, minor->debugfs_root, minor);
108
109	lsdc_ttm_debugfs_init(ldev);
110}
111