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drm/nouveau: idle channel before releasing notify object
Unmapping it while it's still in use (e.g. by M2MF) can lead to page faults and a lot of TRAP_M2MF spam in dmesg. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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@ -116,6 +116,11 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
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{
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struct nouveau_abi16_ntfy *ntfy, *temp;
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/* wait for all activity to stop before releasing notify object, which
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* may be still in use */
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if (chan->chan && chan->ntfy)
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nouveau_channel_idle(chan->chan);
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/* cleanup notifier state */
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list_for_each_entry_safe(ntfy, temp, &chan->notifiers, head) {
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nouveau_abi16_ntfy_fini(chan, ntfy);
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