Changes since v1:
- Based on feed back from Alex the GSP command queue logic was reworked
extensively. This involved creating a new data struct (DmaGspMem) to
manage the shared memory areas between CPU and GSP.
- This data structure helps ensure the safety constraints are meet when
the CPU is reading/writing the shared memory queues.
- Several other minor comments were addressed, as noted in the individual
patches.
This series builds on top of Alex's series[1], most of which has been
merged into drm-rust-next, to continue initialising the GSP into a state
where it becomes active and it starts communicating with the host. A tree
including these patches with the prerequisite patches is available at [2].
It includes patches to initialise several important data structures
required to boot the GSP. The biggest change is the implementation of the
command/message circular queue used to establish communication between GSP
and host in patch 6. Admittedly this patch is rather large - if necessary
it could be split into send and receive patches if people prefer.
This is required to configure and boot the GSP. However this series does
not get the GSP to a fully active state. Instead it gets it to a state
where the GSP sends a message to the host with a sequence of instructions
which need running to get to the active state. A subsequent series will
implement processing of this message and allow the GSP to get to the fully
active state.
A full tree including the prerequisites for this patch series is available
at https://github.com/apopple-nvidia/linux/tree/nova-core-for-upstream.
[1] - https://lore.kernel.org/rust-for-linux/20250911-nova_firmware-v5-0-5a8a33bddca1@nvidia.com/
[2] - https://github.com/apopple-nvidia/linux/tree/nova-core-for-upstream-v2
To: rust-for-linux@vger.kernel.org
To: dri-devel@lists.freedesktop.org
To: Danilo Krummrich <dakr@kernel.org>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Benno Lossin <lossin@kernel.org>
Cc: Andreas Hindborg <a.hindborg@kernel.org>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Trevor Gross <tmgross@umich.edu>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Joel Fernandes <joelagnelf@nvidia.com>
Cc: Timur Tabi <ttabi@nvidia.com>
Cc: linux-kernel@vger.kernel.org
Cc: nouveau@lists.freedesktop.org
Alistair Popple (8):
rust: Add several miscellaneous PCI helpers
gpu: nova-core: Set correct DMA mask
gpu: nova-core: Create initial Gsp
gpu: nova-core: gsp: Create wpr metadata
gpu: nova-core: gsp: Add GSP command queue handling
gpu: nova-core: gsp: Create rmargs
gpu: nova-core: gsp: Create RM registry and sysinfo commands
nova-core: gsp: Boot GSP
Joel Fernandes (3):
gpu: nova-core: Add a slice-buffer (sbuffer) datastructure
nova-core: falcon: Add support to check if RISC-V is active
nova-core: falcon: Add support to write firmware version
drivers/gpu/nova-core/driver.rs | 8 +-
drivers/gpu/nova-core/falcon.rs | 16 +
drivers/gpu/nova-core/fb.rs | 1 -
drivers/gpu/nova-core/firmware/gsp.rs | 3 +-
drivers/gpu/nova-core/firmware/riscv.rs | 9 +-
drivers/gpu/nova-core/gpu.rs | 2 +-
drivers/gpu/nova-core/gsp.rs | 119 +++-
drivers/gpu/nova-core/gsp/boot.rs | 69 ++-
drivers/gpu/nova-core/gsp/cmdq.rs | 430 +++++++++++++
drivers/gpu/nova-core/gsp/commands.rs | 140 +++++
drivers/gpu/nova-core/gsp/fw.rs | 255 +++++++-
.../gpu/nova-core/gsp/fw/r570_144/bindings.rs | 577 ++++++++++++++++++
drivers/gpu/nova-core/nova_core.rs | 1 +
drivers/gpu/nova-core/regs.rs | 15 +
drivers/gpu/nova-core/sbuffer.rs | 188 ++++++
rust/helpers/pci.c | 10 +
rust/kernel/pci.rs | 36 ++
17 files changed, 1857 insertions(+), 22 deletions(-)
create mode 100644 drivers/gpu/nova-core/gsp/cmdq.rs
create mode 100644 drivers/gpu/nova-core/gsp/commands.rs
create mode 100644 drivers/gpu/nova-core/sbuffer.rs
--
2.50.1