From 4bb8550a72597ec098c6d62a75006a0aba61972e Mon Sep 17 00:00:00 2001 From: Arthur Hanson Rasmusson Date: Fri, 2 Oct 2026 15:13:06 -0400 Subject: kernel: GR context-promote bisection modes 4-17 and server-managed-ctxbuf registry variant; complete vgsp rename; docs/tooling refresh - gsp_phys_booter: GR promote bisection modes 4-17 (two-phase zero-field VA, batched entries, hVirtMemory, bare VA, KMD SKIP_CTXBUFFER_ALLOC channel, old-interface GPU_INITIALIZE_CTX, FBMEM context buffer, UVM-faithful PA-only, PATCH/PM auxiliary promotes, server-managed no-promote path); PATCH/PM geometry queries and buffers; pre-boot SET_REGISTRY profile selection - gsp_phys_gpu: gsp_phys_rmcall_gr_promote clamp 0..17 and gsp_phys_srv_ctxbuf parameter; registry image variant with RMSetClientRMAllocatedCtxBuffer=0 - vgsp rename across kernel, scripts, tools and docs (module vgsp.ko, /sys/kernel/debug/vgsp/, vgsp-: log prefixes) - risc-v-gsp-rm-debugger user-facing rename and docs/CI refresh; guest-diag tool updates; README/SBOM/install/Makefile sync Live status: CE ladder and P6 guest-copy forwarding green; GR engine context commit still open (all promote shapes accepted or cleanly refused; the channel stays CTXNOTVALID) - see Handoff-vGPU-IO.md Addendum 21 (local). --- docs/03-architecture/08-physical-gpu-integration.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'docs/03-architecture/08-physical-gpu-integration.md') diff --git a/docs/03-architecture/08-physical-gpu-integration.md b/docs/03-architecture/08-physical-gpu-integration.md index 532cd77..6e13e7b 100644 --- a/docs/03-architecture/08-physical-gpu-integration.md +++ b/docs/03-architecture/08-physical-gpu-integration.md @@ -367,7 +367,7 @@ per-context scheduling. Tenant policy and fairness are a later layer on top. release the RPC runs once (only when the full boot stage ran) before the existing quiesce/FWSEC teardown; without a full boot the fail-safe behaviour is unchanged. A write-only debugfs trigger - (`open-iov-vfio/gsp-phys-unload-rpc`, write "1") lets a live claimed + (`vgsp/gsp-phys-unload-rpc`, write "1") lets a live claimed session test the shutdown without touching WPR2. All of it is inert unless the full boot stage ran. **Live-verified (2026-10-01):** the unload RPC shuts the server down (GSP-RM processor suspended in ~220 ms, handoff bits @@ -375,7 +375,7 @@ per-context scheduling. Tenant policy and fairness are a later layer on top. reboot on every clean cycle. * **Update (2026-10-01) — rung 4c slice 1 implemented (build-only):** for the next cycle a host resource-manager static-info probe is available: the - write-only debugfs file `open-iov-vfio/gsp-phys-rm-probe` (write "1", only + write-only debugfs file `vgsp/gsp-phys-rm-probe` (write "1", only when GSP-RM init-done was observed) sends `GET_GSP_STATIC_INFO` over the real command queue and decodes the server's static configuration (internal handles, split-VA flag, BAR1/2 PDE bases, framebuffer geometry, engine -- cgit v1.2.3