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| author | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-30 23:10:52 -0400 |
|---|---|---|
| committer | Arthur Hanson Rasmusson <arthur@vgpu.io> | 2026-09-30 23:10:52 -0400 |
| commit | 7a882f4f4e8bccd37598ac0449f91f4b3e0ee162 (patch) | |
| tree | 86f43024b57d3b88ffc4ee5e2f67f2ec3ba9f007 /kernel/gsp_phys_gpu.h | |
| parent | 756fdfd6b2090b731b34846b1b23b726bb3978ec (diff) | |
| download | open-iov-7a882f4f4e8bccd37598ac0449f91f4b3e0ee162.tar.gz open-iov-7a882f4f4e8bccd37598ac0449f91f4b3e0ee162.zip | |
gsp-phys: claim the physical GPU and stage real GSP firmware (backend rungs 1-2)
Rung 1 (ownership): a default-off gsp_phys_gpu module param; on claim the
distribution driver is released from 10de:1ed3, our pci_driver binds it,
BAR0/1/3 are mapped and the falcon state is sampled; release unbinds ours
and rebinds the distribution driver. Verified live: claim reads
BOOT0=0x164000a1 with the falcon halted and mailboxes clear; rmmod rebinds
nvidia and nvidia-smi stays healthy.
Rung 2 (firmware): while the device is owned, gsp_phys_fw (default
nvidia/570.211.01/gsp_tu10x.bin) is fetched with request_firmware, checked
as ELF64 RISC-V, and its sections are logged (.fwimage, .fwversion,
.fwsignature_tu10x). The image is held for the boot rung.
The claim is default-off; the emulation path is unchanged.
Diffstat (limited to 'kernel/gsp_phys_gpu.h')
| -rw-r--r-- | kernel/gsp_phys_gpu.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/gsp_phys_gpu.h b/kernel/gsp_phys_gpu.h new file mode 100644 index 0000000..b8a1955 --- /dev/null +++ b/kernel/gsp_phys_gpu.h @@ -0,0 +1,15 @@ +#ifndef GSP_PHYS_GPU_H +#define GSP_PHYS_GPU_H + +#include <linux/types.h> + +/* + * Physical GPU ownership (real-GSP execution backend, bring-up rung 1). + * Claim is disabled unless the gsp_phys_gpu module parameter is set. + */ +bool gsp_phys_gpu_claimed(void); +int gsp_phys_gpu_claim(void); +void gsp_phys_gpu_release(void); +void __iomem *gsp_phys_gpu_bar0(void); + +#endif /* GSP_PHYS_GPU_H */ |