1 /* 2 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files (the 6 * "Software"), to deal in the Software without restriction, including 7 * without limitation the rights to use, copy, modify, merge, publish, 8 * distribute, sublicense, and/or sell copies of the Software, and to 9 * permit persons to whom the Software is furnished to do so, subject to 10 * the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the 13 * next paragraph) shall be included in all copies or substantial 14 * portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 19 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 26 /* 27 * Authors: 28 * Ben Skeggs <bskeggs@redhat.com> 29 */ 30 31 #include <linux/debugfs.h> 32 33 #include "drmP.h" 34 #include "nouveau_drv.h" 35 36 #include <ttm/ttm_page_alloc.h> 37 38 static int 39 nouveau_debugfs_channel_info(struct seq_file *m, void *data) 40 { 41 struct drm_info_node *node = (struct drm_info_node *) m->private; 42 struct nouveau_channel *chan = node->info_ent->data; 43 44 seq_printf(m, "channel id : %d\n", chan->id); 45 46 seq_printf(m, "cpu fifo state:\n"); 47 seq_printf(m, " base: 0x%10llx\n", chan->pushbuf_base); 48 seq_printf(m, " max: 0x%08x\n", chan->dma.max << 2); 49 seq_printf(m, " cur: 0x%08x\n", chan->dma.cur << 2); 50 seq_printf(m, " put: 0x%08x\n", chan->dma.put << 2); 51 seq_printf(m, " free: 0x%08x\n", chan->dma.free << 2); 52 if (chan->dma.ib_max) { 53 seq_printf(m, " ib max: 0x%08x\n", chan->dma.ib_max); 54 seq_printf(m, " ib put: 0x%08x\n", chan->dma.ib_put); 55 seq_printf(m, " ib free: 0x%08x\n", chan->dma.ib_free); 56 } 57 58 seq_printf(m, "gpu fifo state:\n"); 59 seq_printf(m, " get: 0x%08x\n", 60 nvchan_rd32(chan, chan->user_get)); 61 seq_printf(m, " put: 0x%08x\n", 62 nvchan_rd32(chan, chan->user_put)); 63 if (chan->dma.ib_max) { 64 seq_printf(m, " ib get: 0x%08x\n", 65 nvchan_rd32(chan, 0x88)); 66 seq_printf(m, " ib put: 0x%08x\n", 67 nvchan_rd32(chan, 0x8c)); 68 } 69 70 return 0; 71 } 72 73 int 74 nouveau_debugfs_channel_init(struct nouveau_channel *chan) 75 { 76 struct drm_nouveau_private *dev_priv = chan->dev->dev_private; 77 struct drm_minor *minor = chan->dev->primary; 78 int ret; 79 80 if (!dev_priv->debugfs.channel_root) { 81 dev_priv->debugfs.channel_root = 82 debugfs_create_dir("channel", minor->debugfs_root); 83 if (!dev_priv->debugfs.channel_root) 84 return -ENOENT; 85 } 86 87 snprintf(chan->debugfs.name, 32, "%d", chan->id); 88 chan->debugfs.info.name = chan->debugfs.name; 89 chan->debugfs.info.show = nouveau_debugfs_channel_info; 90 chan->debugfs.info.driver_features = 0; 91 chan->debugfs.info.data = chan; 92 93 ret = drm_debugfs_create_files(&chan->debugfs.info, 1, 94 dev_priv->debugfs.channel_root, 95 chan->dev->primary); 96 if (ret == 0) 97 chan->debugfs.active = true; 98 return ret; 99 } 100 101 void 102 nouveau_debugfs_channel_fini(struct nouveau_channel *chan) 103 { 104 struct drm_nouveau_private *dev_priv = chan->dev->dev_private; 105 106 if (!chan->debugfs.active) 107 return; 108 109 drm_debugfs_remove_files(&chan->debugfs.info, 1, chan->dev->primary); 110 chan->debugfs.active = false; 111 112 if (chan == dev_priv->channel) { 113 debugfs_remove(dev_priv->debugfs.channel_root); 114 dev_priv->debugfs.channel_root = NULL; 115 } 116 } 117 118 static int 119 nouveau_debugfs_chipset_info(struct seq_file *m, void *data) 120 { 121 struct drm_info_node *node = (struct drm_info_node *) m->private; 122 struct drm_minor *minor = node->minor; 123 struct drm_device *dev = minor->dev; 124 struct drm_nouveau_private *dev_priv = dev->dev_private; 125 uint32_t ppci_0; 126 127 ppci_0 = nv_rd32(dev, dev_priv->chipset >= 0x40 ? 0x88000 : 0x1800); 128 129 seq_printf(m, "PMC_BOOT_0: 0x%08x\n", nv_rd32(dev, NV03_PMC_BOOT_0)); 130 seq_printf(m, "PCI ID : 0x%04x:0x%04x\n", 131 ppci_0 & 0xffff, ppci_0 >> 16); 132 return 0; 133 } 134 135 static int 136 nouveau_debugfs_memory_info(struct seq_file *m, void *data) 137 { 138 struct drm_info_node *node = (struct drm_info_node *) m->private; 139 struct drm_minor *minor = node->minor; 140 struct drm_nouveau_private *dev_priv = minor->dev->dev_private; 141 142 seq_printf(m, "VRAM total: %dKiB\n", (int)(dev_priv->vram_size >> 10)); 143 return 0; 144 } 145 146 static int 147 nouveau_debugfs_vbios_image(struct seq_file *m, void *data) 148 { 149 struct drm_info_node *node = (struct drm_info_node *) m->private; 150 struct drm_nouveau_private *dev_priv = node->minor->dev->dev_private; 151 int i; 152 153 for (i = 0; i < dev_priv->vbios.length; i++) 154 seq_printf(m, "%c", dev_priv->vbios.data[i]); 155 return 0; 156 } 157 158 static int 159 nouveau_debugfs_evict_vram(struct seq_file *m, void *data) 160 { 161 struct drm_info_node *node = (struct drm_info_node *) m->private; 162 struct drm_nouveau_private *dev_priv = node->minor->dev->dev_private; 163 int ret; 164 165 ret = ttm_bo_evict_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM); 166 if (ret) 167 seq_printf(m, "failed: %d", ret); 168 else 169 seq_printf(m, "succeeded\n"); 170 return 0; 171 } 172 173 static struct drm_info_list nouveau_debugfs_list[] = { 174 { "evict_vram", nouveau_debugfs_evict_vram, 0, NULL }, 175 { "chipset", nouveau_debugfs_chipset_info, 0, NULL }, 176 { "memory", nouveau_debugfs_memory_info, 0, NULL }, 177 { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL }, 178 { "ttm_page_pool", ttm_page_alloc_debugfs, 0, NULL }, 179 { "ttm_dma_page_pool", ttm_dma_page_alloc_debugfs, 0, NULL }, 180 }; 181 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list) 182 183 int 184 nouveau_debugfs_init(struct drm_minor *minor) 185 { 186 drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES, 187 minor->debugfs_root, minor); 188 return 0; 189 } 190 191 void 192 nouveau_debugfs_takedown(struct drm_minor *minor) 193 { 194 drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES, 195 minor); 196 } 197