drm/nouveau: make fifo.create_context() responsible for mapping control regs
The regs belong to PFIFO, they're different for pretty much the same
generations we need different PFIFO control for, and NVC0 is going
to be even more different than the rest.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv04_fifo.c b/drivers/gpu/drm/nouveau/nv04_fifo.c
index a32ba8c..f89d104 100644
--- a/drivers/gpu/drm/nouveau/nv04_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv04_fifo.c
@@ -129,6 +129,11 @@
if (ret)
return ret;
+ chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
+ NV03_USER(chan->id), PAGE_SIZE);
+ if (!chan->user)
+ return -ENOMEM;
+
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
/* Setup initial state */
@@ -173,6 +178,10 @@
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
/* Free the channel resources */
+ if (chan->user) {
+ iounmap(chan->user);
+ chan->user = NULL;
+ }
nouveau_gpuobj_ref(NULL, &chan->ramfc);
}