diff options
Diffstat (limited to 'kernel/gsp_rm_emulation.c')
| -rw-r--r-- | kernel/gsp_rm_emulation.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/gsp_rm_emulation.c b/kernel/gsp_rm_emulation.c index fb0f31d..2a957b3 100644 --- a/kernel/gsp_rm_emulation.c +++ b/kernel/gsp_rm_emulation.c @@ -882,6 +882,20 @@ int gsp_rm_post_channel_event(struct nv_vgpu_device *vgpu, u32 h_src) for (i = 0; i < rm->events_n; i++) { if (!rm->events[i].valid) continue; + /* + * r580: apply the hint dedup to the per-completion + * shotgun. Every completion posts ALL registered + * events (the ABI gives no source association), so a + * completion burst burns the burst budget 8 records + * per completion and real wake-ups get dropped + * (r579 boot: events_dropped=724). A redundant + * re-post within 250 ms adds no wake-up - the + * client's dispatcher re-reads channel state on any + * event - and the 0.5 s hint re-posts late waiters. + */ + if (time_before(jiffies, rm->events[i].last_post + + GSPRM_EVENT_HINT_DEDUP)) + continue; gsp_rm_fill_ev_payload(rm, i, payload); { int rc = gsp_rm_send_flags(ctx, |