Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
gpu: nova-core: sequencer: Implement basic core operations
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>
authored by
Joel Fernandes
and committed by
Alexandre Courbot
9641f052
e386680e
+19
+19
drivers/gpu/nova-core/gsp/sequencer.rs
+19
drivers/gpu/nova-core/gsp/sequencer.rs
···
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RegPoll(fw::RegPollPayload),
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DelayUs(fw::DelayUsPayload),
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RegStore(fw::RegStorePayload),
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+
CoreReset,
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CoreStart,
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CoreWaitForHalt,
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}
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impl GspSeqCmd {
···
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let size = opcode_size + size_of_val(&payload);
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(GspSeqCmd::RegStore(payload), size)
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}
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fw::SeqBufOpcode::CoreReset => (GspSeqCmd::CoreReset, opcode_size),
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fw::SeqBufOpcode::CoreStart => (GspSeqCmd::CoreStart, opcode_size),
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fw::SeqBufOpcode::CoreWaitForHalt => (GspSeqCmd::CoreWaitForHalt, opcode_size),
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_ => return Err(EINVAL),
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};
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···
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GspSeqCmd::RegPoll(cmd) => cmd.run(seq),
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GspSeqCmd::DelayUs(cmd) => cmd.run(seq),
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GspSeqCmd::RegStore(cmd) => cmd.run(seq),
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GspSeqCmd::CoreReset => {
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seq.gsp_falcon.reset(seq.bar)?;
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seq.gsp_falcon.dma_reset(seq.bar);
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Ok(())
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}
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GspSeqCmd::CoreStart => {
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seq.gsp_falcon.start(seq.bar)?;
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Ok(())
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}
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GspSeqCmd::CoreWaitForHalt => {
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seq.gsp_falcon.wait_till_halted(seq.bar)?;
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Ok(())
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}
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}
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}
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}