diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_abi16.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_abi16.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c index 82dab51d8aeb..30afbec9e3b1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_abi16.c +++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c @@ -35,6 +35,7 @@ #include "nouveau_chan.h" #include "nouveau_abi16.h" #include "nouveau_vmm.h" +#include "nouveau_sched.h" static struct nouveau_abi16 * nouveau_abi16(struct drm_file *file_priv) @@ -125,6 +126,17 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16, { struct nouveau_abi16_ntfy *ntfy, *temp; + /* When a client exits without waiting for it's queued up jobs to + * finish it might happen that we fault the channel. This is due to + * drm_file_free() calling drm_gem_release() before the postclose() + * callback. Hence, we can't tear down this scheduler entity before + * uvmm mappings are unmapped. Currently, we can't detect this case. + * + * However, this should be rare and harmless, since the channel isn't + * needed anymore. + */ + nouveau_sched_entity_fini(&chan->sched_entity); + /* wait for all activity to stop before cleaning up */ if (chan->chan) nouveau_channel_idle(chan->chan); @@ -261,6 +273,13 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) if (!drm->channel) return nouveau_abi16_put(abi16, -ENODEV); + /* If uvmm wasn't initialized until now disable it completely to prevent + * userspace from mixing up UAPIs. + * + * The client lock is already acquired by nouveau_abi16_get(). + */ + __nouveau_cli_disable_uvmm_noinit(cli); + device = &abi16->device; engine = NV_DEVICE_HOST_RUNLIST_ENGINES_GR; @@ -304,6 +323,11 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS) if (ret) goto done; + ret = nouveau_sched_entity_init(&chan->sched_entity, &drm->sched, + drm->sched_wq); + if (ret) + goto done; + init->channel = chan->chan->chid; if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) |