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drm/nvc0: create shared channel vm

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-11-16 14:58:42 +10:00
parent 8984e04615
commit 99805566d9
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/nouveau/nvc0_instmem.c
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@ -32,6 +32,7 @@ struct nvc0_instmem_priv {
struct nouveau_channel *bar1;
struct nouveau_gpuobj *bar3_pgd;
struct nouveau_channel *bar3;
struct nouveau_gpuobj *chan_pgd;
};
int
@ -179,6 +180,18 @@ nvc0_instmem_init(struct drm_device *dev)
if (ret)
goto error;
/* channel vm */
ret = nouveau_vm_new(dev, 0, (1ULL << 40), 0x0008000000ULL, &vm);
if (ret)
goto error;
ret = nouveau_gpuobj_new(dev, NULL, 0x8000, 4096, 0, &priv->chan_pgd);
if (ret)
goto error;
nouveau_vm_ref(vm, &dev_priv->chan_vm, priv->chan_pgd);
nouveau_vm_ref(NULL, &vm, NULL);
nvc0_instmem_resume(dev);
return 0;
error:
@ -198,6 +211,9 @@ nvc0_instmem_takedown(struct drm_device *dev)
nv_wr32(dev, 0x1704, 0x00000000);
nv_wr32(dev, 0x1714, 0x00000000);
nouveau_vm_ref(NULL, &dev_priv->chan_vm, priv->chan_pgd);
nouveau_gpuobj_ref(NULL, &priv->chan_pgd);
nvc0_channel_del(&priv->bar1);
nouveau_vm_ref(NULL, &dev_priv->bar1_vm, priv->bar1_pgd);
nouveau_gpuobj_ref(NULL, &priv->bar1_pgd);