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drm/nouveau: Don't remove ramht entries from the neighboring channels.

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Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Francisco Jerez 2010-09-05 06:03:07 +02:00 committed by Ben Skeggs
parent f243423759
commit 3bc14b4dca
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/nouveau/nouveau_ramht.c
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@ -63,6 +63,23 @@ nouveau_ramht_entry_valid(struct drm_device *dev, struct nouveau_gpuobj *ramht,
return (ctx != 0);
}
static int
nouveau_ramht_entry_same_channel(struct nouveau_channel *chan,
struct nouveau_gpuobj *ramht, u32 offset)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
u32 ctx = nv_ro32(ramht, offset + 4);
if (dev_priv->card_type >= NV_50)
return true;
else if (dev_priv->card_type >= NV_40)
return chan->id ==
((ctx >> NV40_RAMHT_CONTEXT_CHANNEL_SHIFT) & 0x1f);
else
return chan->id ==
((ctx >> NV_RAMHT_CONTEXT_CHANNEL_SHIFT) & 0x1f);
}
int
nouveau_ramht_insert(struct nouveau_channel *chan, u32 handle,
struct nouveau_gpuobj *gpuobj)
@ -159,6 +176,7 @@ nouveau_ramht_remove_locked(struct nouveau_channel *chan, u32 handle)
co = ho = nouveau_ramht_hash_handle(chan, handle);
do {
if (nouveau_ramht_entry_valid(dev, ramht, co) &&
nouveau_ramht_entry_same_channel(chan, ramht, co) &&
(handle == nv_ro32(ramht, co))) {
NV_DEBUG(dev,
"remove ch%d 0x%08x: h=0x%08x, c=0x%08x\n",