nouveau: add ioctl wrapper to check for dead channels
v2: explicitly set nr_push to 0 as well Signed-off-by: Karol Herbst <kherbst@redhat.com>main
parent
d95b12e7e3
commit
678a32b98f
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@ -12,6 +12,7 @@ nouveau_bufctx_mthd
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nouveau_bufctx_new
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nouveau_bufctx_refn
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nouveau_bufctx_reset
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nouveau_check_dead_channel
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nouveau_client_del
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nouveau_client_new
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nouveau_device_del
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@ -273,4 +273,8 @@ struct nv04_notify {
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uint32_t offset;
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uint32_t length;
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};
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bool
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nouveau_check_dead_channel(struct nouveau_drm *, struct nouveau_object *chan);
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#endif
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@ -782,3 +782,19 @@ nouveau_pushbuf_kick(struct nouveau_pushbuf *push, struct nouveau_object *chan)
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pushbuf_flush(push);
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return pushbuf_validate(push, false);
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}
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drm_public bool
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nouveau_check_dead_channel(struct nouveau_drm *drm, struct nouveau_object *chan)
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{
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struct drm_nouveau_gem_pushbuf req = {};
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struct nouveau_fifo *fifo = chan->data;
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int ret;
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req.channel = fifo->channel;
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req.nr_push = 0;
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ret = drmCommandWriteRead(drm->fd, DRM_NOUVEAU_GEM_PUSHBUF,
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&req, sizeof(req));
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/* nouveau returns ENODEV once the channel was killed */
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return ret == -ENODEV;
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}
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