[PATCH v3 0/6] gpu: nova-core: add GA100 support

[Timur Tabi <ttabi@nvidia.com>]

GA100 is an odd GPU.  Architecturally, it's an Ampere.  However, it
uses the same GSP-RM boot process as a Turing.  Its VBIOS, for whatever
reason, has an IFR header that precedes the PCI ROM header and must
be skipped.  In addition, the FRTS window size must be set to 0 just
because it's a GA100.

So add all the missing code that GA100 needs to be supported.  There was
some infrastructure already for GA100 (e.g. the FbHal), but it was
incomplete.

Changes in v3:
1) Cleaned up some comments
2) Move IFR header parser into its own function
3) Added register! entries for FIXED0, FIXED1, and FIXED2.
4) Replaced usize_as_u64() with u64::

Timur Tabi (6):
  gpu: nova-core: use correct fwsignature for GA100
  gpu: nova-core: do not consider 0xBB77 as a valid PCI ROM header
    signature
  gpu: nova-core: only boot FRTS if its region is allocated
  gpu: nova-core: add FbHal::frts_size() for GA100 support
  gpu: nova-core: skip the IFR header if present
  gpu: nova-core: enable GA100

 drivers/gpu/nova-core/falcon/hal.rs   |  2 +-
 drivers/gpu/nova-core/fb.rs           |  6 +--
 drivers/gpu/nova-core/fb/hal.rs       |  3 ++
 drivers/gpu/nova-core/fb/hal/ga100.rs |  6 +++
 drivers/gpu/nova-core/fb/hal/ga102.rs |  4 ++
 drivers/gpu/nova-core/fb/hal/tu102.rs | 11 ++++-
 drivers/gpu/nova-core/firmware/gsp.rs |  3 +-
 drivers/gpu/nova-core/gsp/boot.rs     |  5 ++-
 drivers/gpu/nova-core/regs.rs         | 21 +++++++++
 drivers/gpu/nova-core/vbios.rs        | 63 ++++++++++++++++++++++++++-
 10 files changed, 114 insertions(+), 10 deletions(-)


base-commit: 8884dbc1fd174315b406027375bb7a4b211a8fae
-- 
2.53.0