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// SPDX-License-Identifier: GPL-2.0
use core::marker::PhantomData;
use kernel::{
io::poll::read_poll_timeout,
prelude::*,
time::Delta, //
};
use crate::{
driver::Bar0,
falcon::{
hal::LoadMethod,
Falcon,
FalconBromParams,
FalconEngine, //
},
regs, //
};
use super::FalconHal;
pub(super) struct Tu102<E: FalconEngine>(PhantomData<E>);
impl<E: FalconEngine> Tu102<E> {
pub(super) fn new() -> Self {
Self(PhantomData)
}
}
impl<E: FalconEngine> FalconHal<E> for Tu102<E> {
fn select_core(&self, _falcon: &Falcon<E>, _bar: &Bar0) -> Result {
Ok(())
}
fn signature_reg_fuse_version(
&self,
_falcon: &Falcon<E>,
_bar: &Bar0,
_engine_id_mask: u16,
_ucode_id: u8,
) -> Result<u32> {
Ok(0)
}
fn program_brom(&self, _falcon: &Falcon<E>, _bar: &Bar0, _params: &FalconBromParams) -> Result {
Ok(())
}
fn is_riscv_active(&self, bar: &Bar0) -> bool {
let cpuctl = regs::NV_PRISCV_RISCV_CORE_SWITCH_RISCV_STATUS::read(bar, &E::ID);
cpuctl.active_stat()
}
fn reset_wait_mem_scrubbing(&self, bar: &Bar0) -> Result {
// TIMEOUT: memory scrubbing should complete in less than 10ms.
read_poll_timeout(
|| Ok(regs::NV_PFALCON_FALCON_DMACTL::read(bar, &E::ID)),
|r| r.mem_scrubbing_done(),
Delta::ZERO,
Delta::from_millis(10),
)
.map(|_| ())
}
fn reset_eng(&self, bar: &Bar0) -> Result {
regs::NV_PFALCON_FALCON_ENGINE::reset_engine::<E>(bar);
self.reset_wait_mem_scrubbing(bar)?;
Ok(())
}
fn load_method(&self) -> LoadMethod {
LoadMethod::Pio
}
}
|
