diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/gsp_sema_service.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/gsp_sema_service.c b/kernel/gsp_sema_service.c index 1b94505..3ff38b6 100644 --- a/kernel/gsp_sema_service.c +++ b/kernel/gsp_sema_service.c @@ -14789,6 +14789,21 @@ static bool svc_ce_firstsub_try_off(struct nv_vgpu_device *vgpu, &p3, &g3); if (prc && prc != -EAGAIN) continue; + /* + * SESSION 135: at the FIRST-SUBMISSION instant the channel's + * submission is by definition unconsumed - the notifier clear + * this capture runs before is what would let the driver treat + * it as consumed. A candidate whose USERD reads a consumed + * state (get >= put && put > 0) cannot be this channel's live + * just-submitted work; it is a PREVIOUS session's leftover + * block surviving in VRAM (r785: the capture latched the dead + * CUDA client's caf00012 block at fb 0x80000, put=1 get=1, + * for the Vulkan channel beef0101 - the decoded entry was the + * old session's, the client stalled on its expectations). + * Idle 0/0 stays acceptable (svc_userd_probe's own rule). + */ + if (p3 && p3 == g3) + continue; /* latch exactly like the CE autopin */ svc_pin_store(ch->gpfifo_va, off, SVC_APERTURE_FB); svc_lat_store(ch->gpfifo_va, off, SVC_APERTURE_FB); |