From c8efdb1e22012d8168b15fd137887a1e5706fa1f Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Sat, 31 Oct 2026 01:30:39 -0400 Subject: vgsp: sema_gr_setup_hold_ms param (default 0) - setup-push detect (>=12288B or MME-setup families in scan), hold arm on first unreadable read with 8x4K demand to stalled-VA channel, deadline consult at consume gate; r1079-readable setup captured words=511 (contrast r1083/85/87 zeros = setup-push read lottery root); hold fired but guest resolver covers only 0x120000000-0x121000000 - next: extend resolver to GL pushbuffer VA families - SESSION 153 r1083-r1087 --- kernel/main.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'kernel/main.c') diff --git a/kernel/main.c b/kernel/main.c index b5c7105..c96abf8 100644 --- a/kernel/main.c +++ b/kernel/main.c @@ -2797,6 +2797,17 @@ MODULE_PARM_DESC(sema_ce_grace_ms, "CE pending-entry grace window in ms (default module_param_named(sema_push_hold_ms, gsp_sema_push_hold_ms, uint, 0644); MODULE_PARM_DESC(sema_push_hold_ms, "CE unreadable-entry work-before-release hold in ms (default 2500, 0 disables)"); +/* + * SESSION 153-CONTINUED-54: GR setup-push (client MME-setup upload / any + * >= 12 KB GR push) pending hold (ms). An unreadable/all-zero setup push + * keeps its ring entry pending past the failed-rescue consume until the + * demanded 4K-page guest pin lands; 0 disables (demand rows still emitted). + * Default 0: the demand channel cannot yet resolve the GL pushbuffer VA + * families, so the hold only delays the ring (see gsp_sema_service.c). + */ +module_param_named(sema_gr_setup_hold_ms, gsp_sema_gr_setup_hold_ms, uint, 0644); +MODULE_PARM_DESC(sema_gr_setup_hold_ms, "GR setup-push (MME-setup/>=12KB) pending hold in ms (default 0 = off; 20000 = aggressive, needs a resolvable demand family)"); + /* * Grace window (ms) an untranslatable GR entry stays pending before the pump * consumes it as stale, so a late push-buffer pin can still make it readable. -- cgit v1.2.3