From c2d149f2b236d5cd60d76292ce251918c7c8c08e Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Thu, 29 Oct 2026 09:25:06 -0400 Subject: vgsp: chan alloc/refusal diagnostics (PROMOTE_CTX probe benign); attribution: r958 windows were Xorg init; harness DISPLAY regression fixed; init window retires 2 consecutive cycles (SESSION 153 r962) --- kernel/gsp_rm_emulation.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'kernel/gsp_rm_emulation.c') diff --git a/kernel/gsp_rm_emulation.c b/kernel/gsp_rm_emulation.c index 7b7e230..fc94b7d 100644 --- a/kernel/gsp_rm_emulation.c +++ b/kernel/gsp_rm_emulation.c @@ -3143,6 +3143,24 @@ static void gsp_rm_register_channel(struct gsp_emu_context *ctx, u32 h_object, memcpy(&desc.notifier_as, params + GSPRM_CHAN_NOTIFIER_MEM + GSPRM_CHAN_MEM_APERTURE, 4); + /* + * SESSION 153-CONTINUED-15 (draw attribution): every channel-class + * allocation is named with its wire shape before registration, so a + * channel the service silently refuses (gpfifo VA 0 / entries < 2) + * cannot hide behind an absent "registered" line. Bounded. + */ + { + static u32 chan_alloc_log; + + if (chan_alloc_log < 32) { + chan_alloc_log++; + pr_info("vgsp-rm: chan alloc hObject=0x%x gpfifo=0x%llx ent=%u eng=%u vas=0x%x cid=%u userd=0x%llx/%u notif=0x%llx/%u\n", + h_object, desc.gpfifo_va, desc.gpfifo_entries, + desc.engine_type, desc.h_vaspace, desc.cid, + desc.userd_pa, desc.userd_as, + desc.notifier_pa, desc.notifier_as); + } + } gsp_sema_service_channel_add(&desc); } -- cgit v1.2.3