github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 00:22:00 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

gpu: nova-core: sequencer: Implement basic core operations

Browse Source 
These opcodes implement various falcon-related boot operations: reset,
start, wait-for-halt.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251114195552.739371-11-joelagnelf@nvidia.com>
This commit is contained in:
Joel Fernandes 2025-11-14 14:55:49 -05:00 committed by Alexandre Courbot
parent e386680e8d
commit 9641f05223
1 changed files with 19 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/nova-core/gsp/sequencer.rs
View File

@ -76,6 +76,9 @@ pub(crate) enum GspSeqCmd {
RegPoll(fw::RegPollPayload),
DelayUs(fw::DelayUsPayload),
RegStore(fw::RegStorePayload),
CoreReset,
CoreStart,
CoreWaitForHalt,
}
impl GspSeqCmd {
@ -110,6 +113,9 @@ pub(crate) fn new(data: &[u8], dev: &device::Device) -> Result<(Self, usize)> {
let size = opcode_size + size_of_val(&payload);
(GspSeqCmd::RegStore(payload), size)
}
fw::SeqBufOpcode::CoreReset => (GspSeqCmd::CoreReset, opcode_size),
fw::SeqBufOpcode::CoreStart => (GspSeqCmd::CoreStart, opcode_size),
fw::SeqBufOpcode::CoreWaitForHalt => (GspSeqCmd::CoreWaitForHalt, opcode_size),
_ => return Err(EINVAL),
};
@ -214,6 +220,19 @@ fn run(&self, seq: &GspSequencer<'_>) -> Result {
GspSeqCmd::RegPoll(cmd) => cmd.run(seq),
GspSeqCmd::DelayUs(cmd) => cmd.run(seq),
GspSeqCmd::RegStore(cmd) => cmd.run(seq),
GspSeqCmd::CoreReset => {
seq.gsp_falcon.reset(seq.bar)?;
seq.gsp_falcon.dma_reset(seq.bar);
Ok(())
}
GspSeqCmd::CoreStart => {
seq.gsp_falcon.start(seq.bar)?;
Ok(())
}
GspSeqCmd::CoreWaitForHalt => {
seq.gsp_falcon.wait_till_halted(seq.bar)?;
Ok(())
}
}
}
}