[PATCH 00/16] gpu: nova-core: GPU page table, vmm, and bar1 mapping

[Eliot Courtney]

I am reposting Joel Fernandes's original series [1]. The rebase adapts
the patches to recent changes in the rust infra, like HRT lifetimes. It
also adapts to the changes I posted in [2]. It keeps Joel's design and
patch split.

>From Joel's original cover letter:

  This series introduces page-table types and a Virtual Memory Manager (VMM)
  for the nova-core driver, plus a BAR1 user (with selftests) layered on top.
  The page-table layer uses trait-based generics (PteOps, PdeOps, DualPdeOps,
  MmuConfig) to dispatch between MMU v2 and v3 formats. The Vmm tracks
  virtual-address ranges with a maple tree, and the BAR1 user exposes mapped
  CPU access to VRAM through a small allocation API exercised by the selftests.

This series depends on Joel's maple tree Send and Sync patch [3] and his
PCI resource_flags() accessor [4], which I am reposting separately.

This series is based on drm-rust-next.

[1] https://lore.kernel.org/all/20260518181126.2493572-1-joelagnelf@xxxxxxxxxx/
[2] https://lore.kernel.org/all/20260827-pramin-split-v3-0-24b24d7afc52@xxxxxxxxxx/
[3] https://lore.kernel.org/all/20260511143604.3848176-1-joelagnelf@xxxxxxxxxx/
[4] https://lore.kernel.org/all/20260518180342.2387845-2-joelagnelf@xxxxxxxxxx/

Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
---
Joel Fernandes (16):
      gpu: nova-core: mm: Add common types for virtual memory management
      gpu: nova-core: mm: Add buddy allocator and TLB to GpuMm
      gpu: nova-core: mm: Add common types for all page table formats
      gpu: nova-core: mm: pagetable: Add PteOps trait
      gpu: nova-core: mm: pagetable: Add PdeOps trait
      gpu: nova-core: mm: pagetable: Add DualPdeOps trait
      gpu: nova-core: mm: Add MMU v2 page table types
      gpu: nova-core: mm: Add MMU v3 page table types
      gpu: nova-core: mm: pagetable: Add MmuConfig trait
      gpu: nova-core: mm: Add page table walker for MMU v2/v3
      gpu: nova-core: mm: Add Virtual Memory Manager
      gpu: nova-core: mm: Add virtual address range tracking to VMM
      gpu: nova-core: mm: Add multi-page mapping API to VMM
      gpu: nova-core: Add BAR1 aperture type and size constant
      gpu: nova-core: mm: Add BAR1 user interface
      gpu: nova-core: mm: Add BAR1 memory management self-tests

 drivers/gpu/nova-core/Kconfig              |   1 +
 drivers/gpu/nova-core/driver.rs            |  45 ++-
 drivers/gpu/nova-core/gpu.rs               |  68 ++++-
 drivers/gpu/nova-core/gsp/commands.rs      |   3 +
 drivers/gpu/nova-core/gsp/fw/commands.rs   |   8 +
 drivers/gpu/nova-core/mm.rs                | 177 +++++++++++-
 drivers/gpu/nova-core/mm/bar_user.rs       | 422 +++++++++++++++++++++++++++++
 drivers/gpu/nova-core/mm/pagetable.rs      | 422 +++++++++++++++++++++++++++++
 drivers/gpu/nova-core/mm/pagetable/map.rs  | 342 +++++++++++++++++++++++
 drivers/gpu/nova-core/mm/pagetable/ver2.rs | 271 ++++++++++++++++++
 drivers/gpu/nova-core/mm/pagetable/ver3.rs | 417 ++++++++++++++++++++++++++++
 drivers/gpu/nova-core/mm/pagetable/walk.rs | 244 +++++++++++++++++
 drivers/gpu/nova-core/mm/tlb.rs            | 120 ++++++++
 drivers/gpu/nova-core/mm/vmm.rs            | 346 +++++++++++++++++++++++
 drivers/gpu/nova-core/regs.rs              |  68 +++++
 15 files changed, 2937 insertions(+), 17 deletions(-)
---
base-commit: e6a2c988ed96a5a3af51ed97ecba980521bf2fc0
change-id: 20260805-mmrebase-113582afb003
prerequisite-change-id: 20260907-maple-tree-send-sync-a1479d1ab302:v2
prerequisite-patch-id: 81d532949891e2dd846cca5c420e4ba32e9161a7
prerequisite-change-id: 20260907-pci-resource-flags-b7addba0b34f:v1
prerequisite-patch-id: bdd1c2eb4adbedf1c53f1be61ea958743d2a2660

Best regards,
--  
Eliot Courtney <ecourtney@xxxxxxxxxx>