From 3fae97a4422829930e52cb0839b7593006def7bf Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Tue, 29 Sep 2026 12:30:57 -0400 Subject: sema-svc: optional CE release fallback for unreadable pushes (sema_fake_rel) --- kernel/main.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'kernel/main.c') diff --git a/kernel/main.c b/kernel/main.c index 0bd4826..726b4bf 100644 --- a/kernel/main.c +++ b/kernel/main.c @@ -2431,6 +2431,15 @@ MODULE_PARM_DESC(chan_dump, "Dump the sema service channel table (any value)"); module_param_named(sema_gr_rings, gsp_sema_gr_rings, bool, 0644); MODULE_PARM_DESC(sema_gr_rings, "Auto-discover+pin GR channel rings (default 1)"); +/* + * Acknowledge releases from unreadable CE pushes directly (tracking-semaphore + * fallback). The push's data writes are lost either way when the content + * rescue cannot find the page; writing the expected payload keeps the + * driver's progress waits from timing out on the rescue latency. + */ +module_param_named(sema_fake_rel, gsp_sema_fake_rel, bool, 0644); +MODULE_PARM_DESC(sema_fake_rel, "Acknowledge unreadable CE releases directly (default 0)"); + /* * Debug: inject a verified {GPU VA -> guest PA} translation into the * semaphore service (used when the client's mapping cannot be discovered -- cgit v1.2.3