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