drivers/gpu/drm/nouveau/nouveau_abi16.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include "drmP.h"
  25
  26 #include "nouveau_drv.h"
  27 #include "nouveau_dma.h"
  28 #include "nouveau_abi16.h"
  29 #include "nouveau_ramht.h"
  30 #include "nouveau_software.h"
  31
  32 int
  33 nouveau_abi16_ioctl_getparam(ABI16_IOCTL_ARGS)
  34 {
  35         struct drm_nouveau_private *dev_priv = dev->dev_private;
  36         struct drm_nouveau_getparam *getparam = data;
  37
  38         switch (getparam->param) {
  39         case NOUVEAU_GETPARAM_CHIPSET_ID:
  40                 getparam->value = dev_priv->chipset;
  41                 break;
  42         case NOUVEAU_GETPARAM_PCI_VENDOR:
  43                 getparam->value = dev->pci_vendor;
  44                 break;
  45         case NOUVEAU_GETPARAM_PCI_DEVICE:
  46                 getparam->value = dev->pci_device;
  47                 break;
  48         case NOUVEAU_GETPARAM_BUS_TYPE:
  49                 if (drm_pci_device_is_agp(dev))
  50                         getparam->value = 0;
  51                 else
  52                 if (!pci_is_pcie(dev->pdev))
  53                         getparam->value = 1;
  54                 else
  55                         getparam->value = 2;
  56                 break;
  57         case NOUVEAU_GETPARAM_FB_SIZE:
  58                 getparam->value = dev_priv->fb_available_size;
  59                 break;
  60         case NOUVEAU_GETPARAM_AGP_SIZE:
  61                 getparam->value = dev_priv->gart_info.aper_size;
  62                 break;
  63         case NOUVEAU_GETPARAM_VM_VRAM_BASE:
  64                 getparam->value = 0; /* deprecated */
  65                 break;
  66         case NOUVEAU_GETPARAM_PTIMER_TIME:
  67                 getparam->value = dev_priv->engine.timer.read(dev);
  68                 break;
  69         case NOUVEAU_GETPARAM_HAS_BO_USAGE:
  70                 getparam->value = 1;
  71                 break;
  72         case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
  73                 getparam->value = 1;
  74                 break;
  75         case NOUVEAU_GETPARAM_GRAPH_UNITS:
  76                 /* NV40 and NV50 versions are quite different, but register
  77                  * address is the same. User is supposed to know the card
  78                  * family anyway... */
  79                 if (dev_priv->chipset >= 0x40) {
  80                         getparam->value = nv_rd32(dev, NV40_PMC_GRAPH_UNITS);
  81                         break;
  82                 }
  83                 /* FALLTHRU */
  84         default:
  85                 NV_DEBUG(dev, "unknown parameter %lld\n", getparam->param);
  86                 return -EINVAL;
  87         }
  88
  89         return 0;
  90 }
  91
  92 int
  93 nouveau_abi16_ioctl_setparam(ABI16_IOCTL_ARGS)
  94 {
  95         return -EINVAL;
  96 }
  97
  98 int
  99 nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 100 {
 101         struct drm_nouveau_private *dev_priv = dev->dev_private;
 102         struct drm_nouveau_channel_alloc *init = data;
 103         struct nouveau_channel *chan;
 104         int ret;
 105
 106         if (!dev_priv->eng[NVOBJ_ENGINE_GR])
 107                 return -ENODEV;
 108
 109         if (init->fb_ctxdma_handle == ~0 || init->tt_ctxdma_handle == ~0)
 110                 return -EINVAL;
 111
 112         ret = nouveau_channel_alloc(dev, &chan, file_priv,
 113                                     init->fb_ctxdma_handle,
 114                                     init->tt_ctxdma_handle);
 115         if (ret)
 116                 return ret;
 117         init->channel  = chan->id;
 118
 119         if (nouveau_vram_pushbuf == 0) {
 120                 if (chan->dma.ib_max)
 121                         init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 122                                                 NOUVEAU_GEM_DOMAIN_GART;
 123                 else if (chan->pushbuf_bo->bo.mem.mem_type == TTM_PL_VRAM)
 124                         init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 125                 else
 126                         init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 127         } else {
 128                 init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM;
 129         }
 130
 131         if (dev_priv->card_type < NV_C0) {
 132                 init->subchan[0].handle = 0x00000000;
 133                 init->subchan[0].grclass = 0x0000;
 134                 init->subchan[1].handle = NvSw;
 135                 init->subchan[1].grclass = NV_SW;
 136                 init->nr_subchan = 2;
 137         }
 138
 139         /* Named memory object area */
 140         ret = drm_gem_handle_create(file_priv, chan->notifier_bo->gem,
 141                                     &init->notifier_handle);
 142
 143         if (ret == 0)
 144                 atomic_inc(&chan->users); /* userspace reference */
 145         nouveau_channel_put(&chan);
 146         return ret;
 147 }
 148
 149 int
 150 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 151 {
 152         struct drm_nouveau_channel_free *req = data;
 153         struct nouveau_channel *chan;
 154
 155         chan = nouveau_channel_get(file_priv, req->channel);
 156         if (IS_ERR(chan))
 157                 return PTR_ERR(chan);
 158
 159         list_del(&chan->list);
 160         atomic_dec(&chan->users);
 161         nouveau_channel_put(&chan);
 162         return 0;
 163 }
 164
 165 int
 166 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 167 {
 168         struct drm_nouveau_grobj_alloc *init = data;
 169         struct nouveau_channel *chan;
 170         int ret;
 171
 172         if (init->handle == ~0)
 173                 return -EINVAL;
 174
 175         /* compatibility with userspace that assumes 506e for all chipsets */
 176         if (init->class == 0x506e) {
 177                 init->class = nouveau_software_class(dev);
 178                 if (init->class == 0x906e)
 179                         return 0;
 180         } else
 181         if (init->class == 0x906e) {
 182                 NV_DEBUG(dev, "906e not supported yet\n");
 183                 return -EINVAL;
 184         }
 185
 186         chan = nouveau_channel_get(file_priv, init->channel);
 187         if (IS_ERR(chan))
 188                 return PTR_ERR(chan);
 189
 190         if (nouveau_ramht_find(chan, init->handle)) {
 191                 ret = -EEXIST;
 192                 goto out;
 193         }
 194
 195         ret = nouveau_gpuobj_gr_new(chan, init->handle, init->class);
 196         if (ret) {
 197                 NV_ERROR(dev, "Error creating object: %d (%d/0x%08x)\n",
 198                          ret, init->channel, init->handle);
 199         }
 200
 201 out:
 202         nouveau_channel_put(&chan);
 203         return ret;
 204 }
 205
 206 int
 207 nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 208 {
 209         struct drm_nouveau_private *dev_priv = dev->dev_private;
 210         struct drm_nouveau_notifierobj_alloc *na = data;
 211         struct nouveau_channel *chan;
 212         int ret;
 213
 214         /* completely unnecessary for these chipsets... */
 215         if (unlikely(dev_priv->card_type >= NV_C0))
 216                 return -EINVAL;
 217
 218         chan = nouveau_channel_get(file_priv, na->channel);
 219         if (IS_ERR(chan))
 220                 return PTR_ERR(chan);
 221
 222         ret = nouveau_notifier_alloc(chan, na->handle, na->size, 0, 0x1000,
 223                                      &na->offset);
 224         nouveau_channel_put(&chan);
 225         return ret;
 226 }
 227
 228 int
 229 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 230 {
 231         struct drm_nouveau_gpuobj_free *objfree = data;
 232         struct nouveau_channel *chan;
 233         int ret;
 234
 235         chan = nouveau_channel_get(file_priv, objfree->channel);
 236         if (IS_ERR(chan))
 237                 return PTR_ERR(chan);
 238
 239         /* Synchronize with the user channel */
 240         nouveau_channel_idle(chan);
 241
 242         ret = nouveau_ramht_remove(chan, objfree->handle);
 243         nouveau_channel_put(&chan);
 244         return ret;
 245 }