drivers/gpu/drm/nouveau/nouveau_debugfs.c

   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         seq_printf(m, "last fence    : %d\n", chan->fence.sequence);
  71         seq_printf(m, "last signalled: %d\n", chan->fence.sequence_ack);
  72         return 0;
  73 }
  74
  75 int
  76 nouveau_debugfs_channel_init(struct nouveau_channel *chan)
  77 {
  78         struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
  79         struct drm_minor *minor = chan->dev->primary;
  80         int ret;
  81
  82         if (!dev_priv->debugfs.channel_root) {
  83                 dev_priv->debugfs.channel_root =
  84                         debugfs_create_dir("channel", minor->debugfs_root);
  85                 if (!dev_priv->debugfs.channel_root)
  86                         return -ENOENT;
  87         }
  88
  89         snprintf(chan->debugfs.name, 32, "%d", chan->id);
  90         chan->debugfs.info.name = chan->debugfs.name;
  91         chan->debugfs.info.show = nouveau_debugfs_channel_info;
  92         chan->debugfs.info.driver_features = 0;
  93         chan->debugfs.info.data = chan;
  94
  95         ret = drm_debugfs_create_files(&chan->debugfs.info, 1,
  96                                        dev_priv->debugfs.channel_root,
  97                                        chan->dev->primary);
  98         if (ret == 0)
  99                 chan->debugfs.active = true;
 100         return ret;
 101 }
 102
 103 void
 104 nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
 105 {
 106         struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
 107
 108         if (!chan->debugfs.active)
 109                 return;
 110
 111         drm_debugfs_remove_files(&chan->debugfs.info, 1, chan->dev->primary);
 112         chan->debugfs.active = false;
 113
 114         if (chan == dev_priv->channel) {
 115                 debugfs_remove(dev_priv->debugfs.channel_root);
 116                 dev_priv->debugfs.channel_root = NULL;
 117         }
 118 }
 119
 120 static int
 121 nouveau_debugfs_chipset_info(struct seq_file *m, void *data)
 122 {
 123         struct drm_info_node *node = (struct drm_info_node *) m->private;
 124         struct drm_minor *minor = node->minor;
 125         struct drm_device *dev = minor->dev;
 126         struct drm_nouveau_private *dev_priv = dev->dev_private;
 127         uint32_t ppci_0;
 128
 129         ppci_0 = nv_rd32(dev, dev_priv->chipset >= 0x40 ? 0x88000 : 0x1800);
 130
 131         seq_printf(m, "PMC_BOOT_0: 0x%08x\n", nv_rd32(dev, NV03_PMC_BOOT_0));
 132         seq_printf(m, "PCI ID    : 0x%04x:0x%04x\n",
 133                    ppci_0 & 0xffff, ppci_0 >> 16);
 134         return 0;
 135 }
 136
 137 static int
 138 nouveau_debugfs_memory_info(struct seq_file *m, void *data)
 139 {
 140         struct drm_info_node *node = (struct drm_info_node *) m->private;
 141         struct drm_minor *minor = node->minor;
 142         struct drm_nouveau_private *dev_priv = minor->dev->dev_private;
 143
 144         seq_printf(m, "VRAM total: %dKiB\n", (int)(dev_priv->vram_size >> 10));
 145         return 0;
 146 }
 147
 148 static int
 149 nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
 150 {
 151         struct drm_info_node *node = (struct drm_info_node *) m->private;
 152         struct drm_nouveau_private *dev_priv = node->minor->dev->dev_private;
 153         int i;
 154
 155         for (i = 0; i < dev_priv->vbios.length; i++)
 156                 seq_printf(m, "%c", dev_priv->vbios.data[i]);
 157         return 0;
 158 }
 159
 160 static int
 161 nouveau_debugfs_evict_vram(struct seq_file *m, void *data)
 162 {
 163         struct drm_info_node *node = (struct drm_info_node *) m->private;
 164         struct drm_nouveau_private *dev_priv = node->minor->dev->dev_private;
 165         int ret;
 166
 167         ret = ttm_bo_evict_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
 168         if (ret)
 169                 seq_printf(m, "failed: %d", ret);
 170         else
 171                 seq_printf(m, "succeeded\n");
 172         return 0;
 173 }
 174
 175 static struct drm_info_list nouveau_debugfs_list[] = {
 176         { "evict_vram", nouveau_debugfs_evict_vram, 0, NULL },
 177         { "chipset", nouveau_debugfs_chipset_info, 0, NULL },
 178         { "memory", nouveau_debugfs_memory_info, 0, NULL },
 179         { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
 180         { "ttm_page_pool", ttm_page_alloc_debugfs, 0, NULL },
 181         { "ttm_dma_page_pool", ttm_dma_page_alloc_debugfs, 0, NULL },
 182 };
 183 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
 184
 185 int
 186 nouveau_debugfs_init(struct drm_minor *minor)
 187 {
 188         drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
 189                                  minor->debugfs_root, minor);
 190         return 0;
 191 }
 192
 193 void
 194 nouveau_debugfs_takedown(struct drm_minor *minor)
 195 {
 196         drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
 197                                  minor);
 198 }