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path: root/drivers/gpu/drm/nouveau/nv50_fifo.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_fifo.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_fifo.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_fifo.c b/drivers/gpu/drm/nouveau/nv50_fifo.c
index ed18952ae7f4..7add3dfde3df 100644
--- a/drivers/gpu/drm/nouveau/nv50_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv50_fifo.c
@@ -261,6 +261,11 @@ nv50_fifo_create_context(struct nouveau_channel *chan)
}
ramfc = chan->ramfc;
+ chan->user = ioremap(pci_resource_start(dev->pdev, 0) +
+ NV50_USER(chan->id), PAGE_SIZE);
+ if (!chan->user)
+ return -ENOMEM;
+
spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
nv_wo32(ramfc, 0x48, chan->pushbuf->cinst >> 4);
@@ -327,6 +332,10 @@ nv50_fifo_destroy_context(struct nouveau_channel *chan)
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, &ramfc);
nouveau_gpuobj_ref(NULL, &chan->cache);
}