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drm/nvc0: implement channel structure initialisation

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-11-24 10:15:05 +10:00
parent 7460d70355
commit effd6e066f
1 changed files with 20 additions and 4 deletions
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24
drivers/gpu/drm/nouveau/nouveau_object.c
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@ -779,6 +779,25 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
NV_DEBUG(dev, "ch%d vram=0x%08x tt=0x%08x\n", chan->id, vram_h, tt_h);
if (dev_priv->card_type == NV_C0) {
struct nouveau_vm *vm = dev_priv->chan_vm;
struct nouveau_vm_pgd *vpgd;
ret = nouveau_gpuobj_new(dev, NULL, 4096, 0x1000, 0,
&chan->ramin);
if (ret)
return ret;
nouveau_vm_ref(vm, &chan->vm, NULL);
vpgd = list_first_entry(&vm->pgd_list, struct nouveau_vm_pgd, head);
nv_wo32(chan->ramin, 0x0200, lower_32_bits(vpgd->obj->vinst));
nv_wo32(chan->ramin, 0x0204, upper_32_bits(vpgd->obj->vinst));
nv_wo32(chan->ramin, 0x0208, 0xffffffff);
nv_wo32(chan->ramin, 0x020c, 0x000000ff);
return 0;
}
/* Allocate a chunk of memory for per-channel object storage */
ret = nouveau_gpuobj_channel_init_pramin(chan);
if (ret) {
@ -786,7 +805,7 @@ nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
return ret;
}
/* NV50/NVC0 VM
/* NV50 VM
* - Allocate per-channel page-directory
* - Link with shared channel VM
*/
@ -884,9 +903,6 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
NV_DEBUG(dev, "ch%d\n", chan->id);
if (!chan->ramht)
return;
nouveau_ramht_ref(NULL, &chan->ramht, chan);
nouveau_vm_ref(NULL, &chan->vm, chan->vm_pd);