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 static int
  37 nouveau_debugfs_channel_info(struct seq_file *m, void *data)
  38 {
  39         struct drm_info_node *node = (struct drm_info_node *) m->private;
  40         struct nouveau_channel *chan = node->info_ent->data;
  41
  42         seq_printf(m, "channel id    : %d\n", chan->id);
  43
  44         seq_printf(m, "cpu fifo state:\n");
  45         seq_printf(m, "          base: 0x%08x\n", chan->pushbuf_base);
  46         seq_printf(m, "           max: 0x%08x\n", chan->dma.max << 2);
  47         seq_printf(m, "           cur: 0x%08x\n", chan->dma.cur << 2);
  48         seq_printf(m, "           put: 0x%08x\n", chan->dma.put << 2);
  49         seq_printf(m, "          free: 0x%08x\n", chan->dma.free << 2);
  50
  51         seq_printf(m, "gpu fifo state:\n");
  52         seq_printf(m, "           get: 0x%08x\n",
  53                                         nvchan_rd32(chan, chan->user_get));
  54         seq_printf(m, "           put: 0x%08x\n",
  55                                         nvchan_rd32(chan, chan->user_put));
  56
  57         seq_printf(m, "last fence    : %d\n", chan->fence.sequence);
  58         seq_printf(m, "last signalled: %d\n", chan->fence.sequence_ack);
  59         return 0;
  60 }
  61
  62 int
  63 nouveau_debugfs_channel_init(struct nouveau_channel *chan)
  64 {
  65         struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
  66         struct drm_minor *minor = chan->dev->primary;
  67         int ret;
  68
  69         if (!dev_priv->debugfs.channel_root) {
  70                 dev_priv->debugfs.channel_root =
  71                         debugfs_create_dir("channel", minor->debugfs_root);
  72                 if (!dev_priv->debugfs.channel_root)
  73                         return -ENOENT;
  74         }
  75
  76         snprintf(chan->debugfs.name, 32, "%d", chan->id);
  77         chan->debugfs.info.name = chan->debugfs.name;
  78         chan->debugfs.info.show = nouveau_debugfs_channel_info;
  79         chan->debugfs.info.driver_features = 0;
  80         chan->debugfs.info.data = chan;
  81
  82         ret = drm_debugfs_create_files(&chan->debugfs.info, 1,
  83                                        dev_priv->debugfs.channel_root,
  84                                        chan->dev->primary);
  85         if (ret == 0)
  86                 chan->debugfs.active = true;
  87         return ret;
  88 }
  89
  90 void
  91 nouveau_debugfs_channel_fini(struct nouveau_channel *chan)
  92 {
  93         struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
  94
  95         if (!chan->debugfs.active)
  96                 return;
  97
  98         drm_debugfs_remove_files(&chan->debugfs.info, 1, chan->dev->primary);
  99         chan->debugfs.active = false;
 100
 101         if (chan == dev_priv->channel) {
 102                 debugfs_remove(dev_priv->debugfs.channel_root);
 103                 dev_priv->debugfs.channel_root = NULL;
 104         }
 105 }
 106
 107 static int
 108 nouveau_debugfs_chipset_info(struct seq_file *m, void *data)
 109 {
 110         struct drm_info_node *node = (struct drm_info_node *) m->private;
 111         struct drm_minor *minor = node->minor;
 112         struct drm_device *dev = minor->dev;
 113         struct drm_nouveau_private *dev_priv = dev->dev_private;
 114         uint32_t ppci_0;
 115
 116         ppci_0 = nv_rd32(dev, dev_priv->chipset >= 0x40 ? 0x88000 : 0x1800);
 117
 118         seq_printf(m, "PMC_BOOT_0: 0x%08x\n", nv_rd32(dev, NV03_PMC_BOOT_0));
 119         seq_printf(m, "PCI ID    : 0x%04x:0x%04x\n",
 120                    ppci_0 & 0xffff, ppci_0 >> 16);
 121         return 0;
 122 }
 123
 124 static int
 125 nouveau_debugfs_memory_info(struct seq_file *m, void *data)
 126 {
 127         struct drm_info_node *node = (struct drm_info_node *) m->private;
 128         struct drm_minor *minor = node->minor;
 129         struct drm_device *dev = minor->dev;
 130
 131         seq_printf(m, "VRAM total: %dKiB\n",
 132                    (int)(nouveau_mem_fb_amount(dev) >> 10));
 133         return 0;
 134 }
 135
 136 static struct drm_info_list nouveau_debugfs_list[] = {
 137         { "chipset", nouveau_debugfs_chipset_info, 0, NULL },
 138         { "memory", nouveau_debugfs_memory_info, 0, NULL },
 139 };
 140 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
 141
 142 int
 143 nouveau_debugfs_init(struct drm_minor *minor)
 144 {
 145         drm_debugfs_create_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
 146                                  minor->debugfs_root, minor);
 147         return 0;
 148 }
 149
 150 void
 151 nouveau_debugfs_takedown(struct drm_minor *minor)
 152 {
 153         drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
 154                                  minor);
 155 }