linux-kernel - [PATCH 00/10] gpu: nova-core: Boot GSP to RISC-V active

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Message-ID: <20250827082015.959430-1-apopple@nvidia.com>
Date: Wed, 27 Aug 2025 18:19:57 +1000
From: Alistair Popple <apopple@...dia.com>
To: dri-devel@...ts.freedesktop.org,
	dakr@...nel.org,
	acourbot@...dia.com
Cc: Alistair Popple <apopple@...dia.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	John Hubbard <jhubbard@...dia.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Timur Tabi <ttabi@...dia.com>,
	linux-kernel@...r.kernel.org,
	nouveau@...ts.freedesktop.org
Subject: [PATCH 00/10] gpu: nova-core: Boot GSP to RISC-V active

This series builds on top of Alex's series[1] to continue initialising the GSP
into a state where it becomes active and it starts communicating with the host.

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.

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/dc18894e-09d3-4088-9be0-22c2070b61f4@nvidia.com/T/

To: dri-devel@...ts.freedesktop.org
To: Danilo Krummrich <dakr@...nel.org>
To: Alexandre Courbot <acourbot@...dia.com>
Cc: Miguel Ojeda <ojeda@...nel.org>
Cc: Alex Gaynor <alex.gaynor@...il.com>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Gary Guo <gary@...yguo.net>
Cc: Björn Roy Baron <bjorn3_gh@...tonmail.com>
Cc: Benno Lossin <lossin@...nel.org>
Cc: Andreas Hindborg <a.hindborg@...nel.org>
Cc: Alice Ryhl <aliceryhl@...gle.com>
Cc: Trevor Gross <tmgross@...ch.edu>
Cc: David Airlie <airlied@...il.com>
Cc: Simona Vetter <simona@...ll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Cc: Maxime Ripard <mripard@...nel.org>
Cc: Thomas Zimmermann <tzimmermann@...e.de>
Cc: John Hubbard <jhubbard@...dia.com>
Cc: Joel Fernandes <joelagnelf@...dia.com>
Cc: Timur Tabi <ttabi@...dia.com>
Cc: linux-kernel@...r.kernel.org
Cc: nouveau@...ts.freedesktop.org

Alistair Popple (7):
  gpu: nova-core: Set correct DMA mask
  gpu: nova-core: Create initial GspSharedMemObjects
  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
  gpu: nova-core: gsp: Boot GSP

Joel Fernandes (3):
  gpu: nova-core: Add a slice-buffer (sbuffer) datastructure
  gpu: nova-core: falcon: Add support to check if RISC-V is active
  gpu: 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.rs             |   6 +-
 drivers/gpu/nova-core/firmware/gsp.rs         |   1 -
 drivers/gpu/nova-core/firmware/riscv.rs       |   9 +-
 drivers/gpu/nova-core/gpu.rs                  |  60 +-
 drivers/gpu/nova-core/gsp.rs                  | 237 +++++-
 drivers/gpu/nova-core/gsp/cmdq.rs             | 701 ++++++++++++++++++
 drivers/gpu/nova-core/gsp/commands.rs         | 201 +++++
 drivers/gpu/nova-core/nova_core.rs            |   1 +
 drivers/gpu/nova-core/nvfw.rs                 |  59 ++
 .../gpu/nova-core/nvfw/r570_144_bindings.rs   | 501 +++++++++++++
 drivers/gpu/nova-core/regs.rs                 |  15 +
 drivers/gpu/nova-core/sbuffer.rs              | 188 +++++
 15 files changed, 1991 insertions(+), 13 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

-- 
2.47.2