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Message-Id: <20251106231153.2925637-7-joelagnelf@nvidia.com>
Date: Thu, 6 Nov 2025 18:11:45 -0500
From: Joel Fernandes <joelagnelf@...dia.com>
To: linux-kernel@...r.kernel.org,
rust-for-linux@...r.kernel.org,
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>,
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>,
joel@...lfernandes.org,
Daniel Almeida <daniel.almeida@...labora.com>,
nouveau@...ts.freedesktop.org,
Lyude Paul <lyude@...hat.com>
Subject: [PATCH v3 06/14] gpu: nova-core: Add bindings required by GSP sequencer
Add several firmware bindings required by GSP sequencer code.
Co-developed-by: Alistair Popple <apopple@...dia.com>
Signed-off-by: Alistair Popple <apopple@...dia.com>
Reviewed-by: Lyude Paul <lyude@...hat.com>
Signed-off-by: Joel Fernandes <joelagnelf@...dia.com>
---
drivers/gpu/nova-core/gsp/fw.rs | 45 ++++++++++
.../gpu/nova-core/gsp/fw/r570_144/bindings.rs | 85 +++++++++++++++++++
2 files changed, 130 insertions(+)
diff --git a/drivers/gpu/nova-core/gsp/fw.rs b/drivers/gpu/nova-core/gsp/fw.rs
index 687749bdbb45..53e28458cd7d 100644
--- a/drivers/gpu/nova-core/gsp/fw.rs
+++ b/drivers/gpu/nova-core/gsp/fw.rs
@@ -543,6 +543,51 @@ pub(crate) fn element_count(&self) -> u32 {
}
}
+#[expect(unused)]
+pub(crate) use r570_144::{
+ // GSP sequencer run structure with information on how to run the sequencer.
+ rpc_run_cpu_sequencer_v17_00,
+
+ // GSP sequencer structures.
+ GSP_SEQUENCER_BUFFER_CMD,
+ GSP_SEQ_BUF_OPCODE,
+
+ // GSP sequencer core operation opcodes.
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_RESET,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_RESUME,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_START,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_WAIT_FOR_HALT,
+
+ // GSP sequencer delay opcode and payload.
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_DELAY_US,
+
+ // GSP sequencer register opcodes.
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_MODIFY,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_POLL,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_STORE,
+ GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_WRITE,
+
+ // GSP sequencer delay payload structure.
+ GSP_SEQ_BUF_PAYLOAD_DELAY_US,
+
+ // GSP sequencer register payload structures.
+ GSP_SEQ_BUF_PAYLOAD_REG_MODIFY,
+ GSP_SEQ_BUF_PAYLOAD_REG_POLL,
+ GSP_SEQ_BUF_PAYLOAD_REG_STORE,
+ GSP_SEQ_BUF_PAYLOAD_REG_WRITE, //
+};
+
+// SAFETY: This struct only contains integer types for which all bit patterns
+// are valid.
+unsafe impl FromBytes for GSP_SEQUENCER_BUFFER_CMD {}
+
+// SAFETY: Padding is explicit and will not contain uninitialized data.
+unsafe impl AsBytes for rpc_run_cpu_sequencer_v17_00 {}
+
+// SAFETY: This struct only contains integer types for which all bit patterns
+// are valid.
+unsafe impl FromBytes for rpc_run_cpu_sequencer_v17_00 {}
+
// SAFETY: Padding is explicit and will not contain uninitialized data.
unsafe impl AsBytes for GspMsgElement {}
diff --git a/drivers/gpu/nova-core/gsp/fw/r570_144/bindings.rs b/drivers/gpu/nova-core/gsp/fw/r570_144/bindings.rs
index 32933874ff97..c5c589c1e2ac 100644
--- a/drivers/gpu/nova-core/gsp/fw/r570_144/bindings.rs
+++ b/drivers/gpu/nova-core/gsp/fw/r570_144/bindings.rs
@@ -664,6 +664,7 @@ pub struct PACKED_REGISTRY_TABLE {
pub numEntries: u32_,
pub entries: __IncompleteArrayField<PACKED_REGISTRY_ENTRY>,
}
+
#[repr(C)]
#[derive(Debug, Default, Copy, Clone, Zeroable)]
pub struct msgqTxHeader {
@@ -702,3 +703,87 @@ fn default() -> Self {
}
}
}
+#[repr(C)]
+#[derive(Debug, Default)]
+pub struct rpc_run_cpu_sequencer_v17_00 {
+ pub bufferSizeDWord: u32_,
+ pub cmdIndex: u32_,
+ pub regSaveArea: [u32_; 8usize],
+ pub commandBuffer: __IncompleteArrayField<u32_>,
+}
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_WRITE: GSP_SEQ_BUF_OPCODE = 0;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_MODIFY: GSP_SEQ_BUF_OPCODE = 1;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_POLL: GSP_SEQ_BUF_OPCODE = 2;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_DELAY_US: GSP_SEQ_BUF_OPCODE = 3;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_REG_STORE: GSP_SEQ_BUF_OPCODE = 4;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_RESET: GSP_SEQ_BUF_OPCODE = 5;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_START: GSP_SEQ_BUF_OPCODE = 6;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_WAIT_FOR_HALT: GSP_SEQ_BUF_OPCODE = 7;
+pub const GSP_SEQ_BUF_OPCODE_GSP_SEQ_BUF_OPCODE_CORE_RESUME: GSP_SEQ_BUF_OPCODE = 8;
+pub type GSP_SEQ_BUF_OPCODE = ffi::c_uint;
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct GSP_SEQ_BUF_PAYLOAD_REG_WRITE {
+ pub addr: u32_,
+ pub val: u32_,
+}
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct GSP_SEQ_BUF_PAYLOAD_REG_MODIFY {
+ pub addr: u32_,
+ pub mask: u32_,
+ pub val: u32_,
+}
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct GSP_SEQ_BUF_PAYLOAD_REG_POLL {
+ pub addr: u32_,
+ pub mask: u32_,
+ pub val: u32_,
+ pub timeout: u32_,
+ pub error: u32_,
+}
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct GSP_SEQ_BUF_PAYLOAD_DELAY_US {
+ pub val: u32_,
+}
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct GSP_SEQ_BUF_PAYLOAD_REG_STORE {
+ pub addr: u32_,
+ pub index: u32_,
+}
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct GSP_SEQUENCER_BUFFER_CMD {
+ pub opCode: GSP_SEQ_BUF_OPCODE,
+ pub payload: GSP_SEQUENCER_BUFFER_CMD__bindgen_ty_1,
+}
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub union GSP_SEQUENCER_BUFFER_CMD__bindgen_ty_1 {
+ pub regWrite: GSP_SEQ_BUF_PAYLOAD_REG_WRITE,
+ pub regModify: GSP_SEQ_BUF_PAYLOAD_REG_MODIFY,
+ pub regPoll: GSP_SEQ_BUF_PAYLOAD_REG_POLL,
+ pub delayUs: GSP_SEQ_BUF_PAYLOAD_DELAY_US,
+ pub regStore: GSP_SEQ_BUF_PAYLOAD_REG_STORE,
+}
+impl Default for GSP_SEQUENCER_BUFFER_CMD__bindgen_ty_1 {
+ fn default() -> Self {
+ let mut s = ::core::mem::MaybeUninit::<Self>::uninit();
+ unsafe {
+ ::core::ptr::write_bytes(s.as_mut_ptr(), 0, 1);
+ s.assume_init()
+ }
+ }
+}
+impl Default for GSP_SEQUENCER_BUFFER_CMD {
+ fn default() -> Self {
+ let mut s = ::core::mem::MaybeUninit::<Self>::uninit();
+ unsafe {
+ ::core::ptr::write_bytes(s.as_mut_ptr(), 0, 1);
+ s.assume_init()
+ }
+ }
+}
--
2.34.1
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