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 
16 static 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 
33 static 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 
44 static 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 
56 static 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 
67 static 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 
88 static 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 
97 void 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