These opcodes implement various falcon-related boot operations: reset, start, wait-for-halt.
Reviewed-by: Lyude Paul <[email protected]> Signed-off-by: Joel Fernandes <[email protected]> --- drivers/gpu/nova-core/gsp/sequencer.rs | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/gpu/nova-core/gsp/sequencer.rs b/drivers/gpu/nova-core/gsp/sequencer.rs index 787db395dd2f..93c8f84e032b 100644 --- a/drivers/gpu/nova-core/gsp/sequencer.rs +++ b/drivers/gpu/nova-core/gsp/sequencer.rs @@ -90,6 +90,9 @@ pub(crate) enum GspSeqCmd { RegPoll(fw::RegPollPayload), DelayUs(fw::DelayUsPayload), RegStore(fw::RegStorePayload), + CoreReset, + CoreStart, + CoreWaitForHalt, } impl GspSeqCmd { @@ -124,6 +127,9 @@ 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), }; @@ -232,6 +238,19 @@ 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(()) + } } } } -- 2.34.1
