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