lsdc_debugfs.c

  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}