gpu: nova-core: boot GSP with vGPU enabled

Booting up GSP with vGPU enabled is part of the first milestone (M1)
together with the Rust fwctl abstraction [1] and the nova-core fwctl
driver [2] for upstream vGPU support. It allows us to validate the basic
GSP boot flow with vGPU enabled and upload vGPU types even before the
remaining nova-core dependencies are ready. The nova-vgpu WIP patches
for all milestones can be found at [3].

This version is based on drm-rust-next plus Alexandre's GSP boot process
consolidation series [4].

v2:

- Rebase on top of Alexandre's GSP boot process consolidation series.
- Drop the FSP response, FSP documentation, and GspBootContext patches
  that are already in drm-rust-next or superseded by the prerequisite
  boot consolidation series.
- Change pci_sriov_get_totalvfs() to return u16 and update existing C
  callers accordingly.
- Make the Rust sriov_get_totalvfs() helper return u16 directly.
- Rework the FSP PRC vGPU mode query to use typed subcommand, object ID,
  flags, request, and response structures.
- Move vGPU state detection before GSP boot into a read-only VgpuManager,
  avoiding Mutex/Cell based mutation during boot.
- Add a HAL method for the vGPU capability gate.
- Split the SetRegistry changes into a dynamic-entry refactor and the
  RMSetSriovMode functional change.
- Rework WPR2 heap sizing to consume VgpuManager, keep the vGPU heap-size
  helper in gsp/fw.rs, and drop the 1VM heap-size special case.

[1] https://lore.kernel.org/rust-for-linux/20260217204909.211...
[2] https://lore.kernel.org/rust-for-linux/20260305190936.398...
[3] https://github.com/zhiwang-nvidia/nova-core/tree/zhi/nova...
[4] https://lore.kernel.org/all/20260622-nova-bootcontext-v2-...

Zhi Wang (7):
  PCI/IOV: Return u16 from pci_sriov_get_totalvfs()
  rust: pci: Add sriov_get_totalvfs() helper
  gpu: nova-core: read vGPU mode from FSP via PRC protocol
  gpu: nova-core: add vGPU preludes
  gpu: nova-core: build SetRegistry entries dynamically
  gpu: nova-core: set RMSetSriovMode when vGPU is enabled
  gpu: nova-core: reserve larger WPR2 heap for vGPU

 drivers/crypto/hisilicon/qm.c                 |   8 +-
 .../crypto/intel/qat/qat_common/adf_sriov.c   |   6 +-
 drivers/gpu/drm/xe/xe_sriov_pf.c              |   6 +-
 drivers/gpu/nova-core/fb.rs                   |  25 ++-
 drivers/gpu/nova-core/fsp.rs                  | 194 +++++++++++++++++-
 drivers/gpu/nova-core/gpu.rs                  |  12 ++
 drivers/gpu/nova-core/gpu/hal.rs              |   3 +
 drivers/gpu/nova-core/gpu/hal/gh100.rs        |  12 +-
 drivers/gpu/nova-core/gpu/hal/tu102.rs        |   5 +
 drivers/gpu/nova-core/gsp.rs                  |   3 +
 drivers/gpu/nova-core/gsp/boot.rs             |  11 +-
 drivers/gpu/nova-core/gsp/commands.rs         |  79 ++++---
 drivers/gpu/nova-core/gsp/fw.rs               |  10 +
 drivers/gpu/nova-core/mctp.rs                 |   3 +
 drivers/gpu/nova-core/nova_core.rs            |   1 +
 drivers/gpu/nova-core/vgpu.rs                 |  60 ++++++
 drivers/misc/genwqe/card_base.c               |   6 +-
 .../net/ethernet/cavium/thunder/nic_main.c    |   2 +-
 drivers/net/ethernet/emulex/benet/be_main.c   |   3 +-
 .../net/ethernet/mellanox/mlx5/core/sriov.c   |   3 +-
 drivers/net/ethernet/sfc/ef10_sriov.c         |   2 +-
 drivers/pci/iov.c                             |   2 +-
 drivers/vdpa/octeon_ep/octep_vdpa_main.c      |   4 +-
 include/linux/pci.h                           |   4 +-
 rust/kernel/pci.rs                            |   6 +
 25 files changed, 401 insertions(+), 69 deletions(-)
 create mode 100644 drivers/gpu/nova-core/vgpu.rs

-- 
2.51.0