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implement rtio_get_destination_status (#177) 

Co-authored-by: mwojcik <mw@m-labs.hk>
Co-committed-by: mwojcik <mw@m-labs.hk>
This commit is contained in:
mwojcik 2022-03-25 18:20:05 +08:00 committed by sb10q
parent dc54d5f9b6
commit a92561b9d3
6 changed files with 34 additions and 18 deletions
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17
src/runtime/src/comms.rs
View File

@ -159,7 +159,7 @@ async fn write_exception_string(stream: &TcpStream, s: CSlice<'static, u8>) -> R
Ok(())
}
async fn handle_run_kernel(stream: Option<&TcpStream>, control: &Rc<RefCell<kernel::Control>>) -> Result<()> {
async fn handle_run_kernel(stream: Option<&TcpStream>, control: &Rc<RefCell<kernel::Control>>, up_destinations: &Rc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) -> Result<()> {
control.borrow_mut().tx.async_send(kernel::Message::StartRequest).await;
loop {
let reply = control.borrow_mut().rx.async_recv().await;
@ -290,6 +290,10 @@ async fn handle_run_kernel(stream: Option<&TcpStream>, control: &Rc<RefCell<kern
let result = DMA_RECORD_STORE.lock().get(&name).map(|v| v.clone());
control.borrow_mut().tx.async_send(kernel::Message::DmaGetReply(result)).await;
},
kernel::Message::UpDestinationsRequest(destination) => {
let result = up_destinations.borrow()[destination as usize];
control.borrow_mut().tx.async_send(kernel::Message::UpDestinationsReply(result)).await;
}
_ => {
panic!("unexpected message from core1 while kernel was running: {:?}", reply);
}
@ -331,7 +335,7 @@ async fn load_kernel(buffer: &Vec<u8>, control: &Rc<RefCell<kernel::Control>>, s
}
}
async fn handle_connection(stream: &mut TcpStream, control: Rc<RefCell<kernel::Control>>) -> Result<()> {
async fn handle_connection(stream: &mut TcpStream, control: Rc<RefCell<kernel::Control>>, up_destinations: &Rc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) -> Result<()> {
stream.set_ack_delay(None);
if !expect(stream, b"ARTIQ coredev\n").await? {
@ -354,7 +358,7 @@ async fn handle_connection(stream: &mut TcpStream, control: Rc<RefCell<kernel::C
load_kernel(&buffer, &control, Some(stream)).await?;
},
Request::RunKernel => {
handle_run_kernel(Some(stream), &control).await?;
handle_run_kernel(Some(stream), &control, &up_destinations).await?;
},
_ => {
error!("unexpected request from host: {:?}", request);
@ -427,7 +431,7 @@ pub fn main(timer: GlobalTimer, cfg: Config) {
info!("Loading startup kernel...");
if let Ok(()) = task::block_on(load_kernel(&buffer, &control, None)) {
info!("Starting startup kernel...");
let _ = task::block_on(handle_run_kernel(None, &control));
let _ = task::block_on(handle_run_kernel(None, &control, &up_destinations));
info!("Startup kernel finished!");
} else {
error!("Error loading startup kernel!");
@ -452,13 +456,14 @@ pub fn main(timer: GlobalTimer, cfg: Config) {
let idle_kernel = idle_kernel.clone();
let connection = connection.clone();
let terminate = terminate.clone();
let up_destinations = up_destinations.clone();
// we make sure the value of terminate is 0 before we start
let _ = terminate.try_wait();
task::spawn(async move {
select_biased! {
_ = (async {
let _ = handle_connection(&mut stream, control.clone())
let _ = handle_connection(&mut stream, control.clone(), &up_destinations)
.await
.map_err(|e| warn!("connection terminated: {}", e));
if let Some(buffer) = &*idle_kernel {
@ -466,7 +471,7 @@ pub fn main(timer: GlobalTimer, cfg: Config) {
let _ = load_kernel(&buffer, &control, None)
.await.map_err(|_| warn!("error loading idle kernel"));
info!("Running idle kernel");
let _ = handle_run_kernel(None, &control)
let _ = handle_run_kernel(None, &control, &up_destinations)
.await.map_err(|_| warn!("error running idle kernel"));
info!("Idle kernel terminated");
}

4
src/runtime/src/kernel/api.rs
View File

@ -13,7 +13,7 @@ use crate::i2c;
use super::rpc::{rpc_send, rpc_send_async, rpc_recv};
use super::dma;
use super::cache;
use super::core1::rtio_get_destination_status;
extern "C" {
fn vsnprintf_(buffer: *mut c_char, count: size_t, format: *const c_char, va: VaList) -> c_int;
@ -87,7 +87,7 @@ pub fn resolve(required: &[u8]) -> Option<u32> {
// rtio
api!(rtio_init = rtio::init),
api!(rtio_get_destination_status = rtio::get_destination_status),
api!(rtio_get_destination_status = rtio_get_destination_status),
api!(rtio_get_counter = rtio::get_counter),
api!(rtio_output = rtio::output),
api!(rtio_output_wide = rtio::output_wide),

18
src/runtime/src/kernel/core1.rs
View File

@ -233,3 +233,21 @@ extern fn dl_unwind_find_exidx(pc: *const u32, len_ptr: *mut u32) -> *const u32
}
start
}
pub extern fn rtio_get_destination_status(destination: i32) -> bool {
#[cfg(has_drtio)]
if destination > 0 && destination < 255 {
let reply = unsafe {
let core1_rx = KERNEL_CHANNEL_0TO1.as_mut().unwrap();
let core1_tx = KERNEL_CHANNEL_1TO0.as_mut().unwrap();
core1_tx.send(Message::UpDestinationsRequest(destination));
core1_rx.recv()
};
return match reply {
Message::UpDestinationsReply(x) => x,
_ => panic!("received unexpected reply to UpDestinationsRequest: {:?}", reply)
};
}
destination == 0
}

3
src/runtime/src/kernel/mod.rs
View File

@ -47,6 +47,9 @@ pub enum Message {
DmaEraseRequest(String),
DmaGetRequest(String),
DmaGetReply(Option<(Vec<u8>, i64)>),
UpDestinationsRequest(i32),
UpDestinationsReply(bool),
}
static CHANNEL_0TO1: Mutex<Option<sync_channel::Sender<'static, Message>>> = Mutex::new(None);

5
src/runtime/src/rtio_acp.rs
View File

@ -57,11 +57,6 @@ pub extern fn init() {
}
}
pub extern fn get_destination_status(destination: i32) -> bool {
// TODO
destination == 0
}
pub extern fn get_counter() -> i64 {
unsafe {
csr::rtio::counter_update_write(1);

5
src/runtime/src/rtio_csr.rs
View File

@ -25,11 +25,6 @@ pub extern fn init() {
}
}
pub extern fn get_destination_status(destination: i32) -> bool {
// TODO
destination == 0
}
pub extern fn get_counter() -> i64 {
unsafe {
csr::rtio::counter_update_write(1);