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 17 static 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 34 static 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 45 static 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 57 static 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 68 static 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 89 static 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 98 void 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 } 112