diff options
| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-21 18:01:55 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-21 18:01:55 -0400 |
| commit | 6aadb593750736f239fd54a0ccef4b3834c08fc4 (patch) | |
| tree | 5b3d39d82a09cdfd3ca8022cd9c0f83040f23229 /tools/rmq/Makefile | |
| parent | c8249854284c3e8181587b96e3c5b4177d705e0c (diff) | |
| download | open-iov-6aadb593750736f239fd54a0ccef4b3834c08fc4.tar.gz open-iov-6aadb593750736f239fd54a0ccef4b3834c08fc4.zip | |
kernel: GSP-RM msgq emulation + TU104 hardware tables (GET_GSP_STATIC_INFO, GSP_RM_CONTROL)
Implements the GSP-RM reply content layer for the msgq RPC channel:
- kernel/gsp_rm_emulation.c/h: GSP-RM msgq emulation engine
- Queue chain discovery (libos args → RMARGS → GSP_ARGUMENTS_CACHED)
- Status queue link + GSP_INIT_DONE emission
- Command queue polling + RPC dispatch
- SET_GUEST_SYSTEM_INFO version negotiation (VGX 41.12)
- GET_GSP_STATIC_INFO(65) with 1656-byte GspStaticConfigInfo
- GSP_RM_CONTROL(76) sub-command dispatch:
- FIFO_GET_DEVICE_INFO_TABLE (0x20801112)
- INTERNAL_INTR_GET_KERNEL_TABLE (0x20800a5c)
- GPU_GET_CONSTRUCTED_FALCON_INFO (0x208001b0)
- INTERNAL_GET_DEVICE_INFO_TABLE (0x20800a40)
- kernel/gsp_rm_tu104.h: TU104 hardware tables
- 12-entry FIFO engine table (GR0, CE0-4, NVDEC0-1, NVENC0, SEC2, NVJPG, SW)
- 8-entry interrupt table (from intr_phys_tu102.c)
- 1-entry constructed falcon table (FBFLCN)
- 11-entry internal device info table
- GspStaticConfigInfo layout (1656 bytes, ABI-verified offsets)
- Data from NVIDIA driver material (ext-tree) + hwref/turing/tu104
- tools/rmq/: Userspace RM API client (oracle for ground-truth tables)
KNOWN ISSUE: gsp_rm_send crashes (fortify_panic) on multi-element messages
when reply data exceeds one 4096-byte queue element. Affects cmd 0x20800a41
(paramsSize=8204). Multi-element splitting is the next fix.
Diffstat (limited to 'tools/rmq/Makefile')
| -rw-r--r-- | tools/rmq/Makefile | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/rmq/Makefile b/tools/rmq/Makefile new file mode 100644 index 0000000..f58e4d9 --- /dev/null +++ b/tools/rmq/Makefile @@ -0,0 +1,19 @@ +# rmq - RM query tool (userspace RM API client) +# +# Queries the host NVIDIA Resource Manager via /dev/nvidia0 ioctls. +# Used as an "oracle" to extract ground-truth static GPU data (device info +# tables, static config) from the host's real GSP-RM for the GSP-RM emulation +# layer (kernel/gsp_rm_emulation.c). + +CC ?= gcc +CFLAGS ?= -O2 -Wall + +all: rmq + +rmq: rmq.c + $(CC) $(CFLAGS) -o $@ $< + +clean: + rm -f rmq + +.PHONY: all clean |