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gpu: nova-core: falcon: Move start functionality into separate helper

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Move start functionality into a separate helper so we can use it from
the sequencer.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251114195552.739371-3-joelagnelf@nvidia.com>
This commit is contained in:
Joel Fernandes
2025-11-14 14:55:41 -05:00
committed by Alexandre Courbot
parent 2d981773e1
commit c5c0cfa67a
1 changed files with 16 additions and 10 deletions
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26
drivers/gpu/nova-core/falcon.rs
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@@ -564,7 +564,21 @@ impl<E: FalconEngine + 'static> Falcon<E> {
Ok(())
}
/// Runs the loaded firmware and waits for its completion.
/// Start the falcon CPU.
pub(crate) fn start(&self, bar: &Bar0) -> Result<()> {
match regs::NV_PFALCON_FALCON_CPUCTL::read(bar, &E::ID).alias_en() {
true => regs::NV_PFALCON_FALCON_CPUCTL_ALIAS::default()
.set_startcpu(true)
.write(bar, &E::ID),
false => regs::NV_PFALCON_FALCON_CPUCTL::default()
.set_startcpu(true)
.write(bar, &E::ID),
}
Ok(())
}
/// Start running the loaded firmware.
///
/// `mbox0` and `mbox1` are optional parameters to write into the `MBOX0` and `MBOX1` registers
/// prior to running.
@@ -589,15 +603,7 @@ impl<E: FalconEngine + 'static> Falcon<E> {
.write(bar, &E::ID);
}
match regs::NV_PFALCON_FALCON_CPUCTL::read(bar, &E::ID).alias_en() {
true => regs::NV_PFALCON_FALCON_CPUCTL_ALIAS::default()
.set_startcpu(true)
.write(bar, &E::ID),
false => regs::NV_PFALCON_FALCON_CPUCTL::default()
.set_startcpu(true)
.write(bar, &E::ID),
}
self.start(bar)?;
self.wait_till_halted(bar)?;
let (mbox0, mbox1) = (