forked from M-Labs/artiq-zynq
load kernel on core1 (WIP)
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83b92f3a7f
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@ -19,6 +19,7 @@ use libboard_zynq::{
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};
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use libsupport_zynq::alloc::{vec, vec::Vec};
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use libasync::{smoltcp::{Sockets, TcpStream}, task};
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use alloc::sync::Arc;
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use crate::kernel;
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@ -136,7 +137,22 @@ enum Reply {
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ClockFailure = 15,
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}
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async fn send_header(stream: &TcpStream, reply: Reply) -> Result<()> {
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async fn write_i32(stream: &TcpStream, value: i32) -> Result<()> {
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stream.send([
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(value >> 24) as u8,
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(value >> 16) as u8,
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(value >> 8) as u8,
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value as u8].iter().copied()).await?;
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Ok(())
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}
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async fn write_chunk(stream: &TcpStream, chunk: &[u8]) -> Result<()> {
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write_i32(stream, chunk.len() as i32).await?;
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stream.send(chunk.iter().copied()).await?;
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Ok(())
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}
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async fn write_header(stream: &TcpStream, reply: Reply) -> Result<()> {
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stream.send([0x5a, 0x5a, 0x5a, 0x5a, reply.to_u8().unwrap()].iter().copied()).await?;
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Ok(())
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}
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@ -149,7 +165,7 @@ async fn handle_connection(stream: &TcpStream, control: Rc<RefCell<kernel::Contr
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.ok_or(Error::UnrecognizedPacket)?;
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match request {
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Request::SystemInfo => {
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send_header(&stream, Reply::SystemInfo).await?;
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write_header(&stream, Reply::SystemInfo).await?;
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stream.send("ARZQ".bytes()).await?;
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},
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Request::LoadKernel => {
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@ -160,14 +176,24 @@ async fn handle_connection(stream: &TcpStream, control: Rc<RefCell<kernel::Contr
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let mut control = control.borrow_mut();
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control.restart();
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control.tx.async_send(kernel::Message::LoadRequest).await;
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control.tx.async_send(kernel::Message::LoadRequest(Arc::new(buffer))).await;
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let reply = control.rx.async_recv().await;
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println!("core0 received: {:?}", reply);
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send_header(&stream, Reply::LoadCompleted).await?;
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match *reply {
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kernel::Message::LoadCompleted => write_header(&stream, Reply::LoadCompleted).await?,
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kernel::Message::LoadFailed => {
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write_header(&stream, Reply::LoadFailed).await?;
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write_chunk(&stream, b"core1 failed to process data").await?;
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},
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_ => {
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println!("received unexpected message from core1: {:?}", reply);
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write_header(&stream, Reply::LoadFailed).await?;
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write_chunk(&stream, b"core1 sent unexpected reply").await?;
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}
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}
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} else {
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read_drain(&stream, length).await?;
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send_header(&stream, Reply::LoadFailed).await?;
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write_header(&stream, Reply::LoadFailed).await?;
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write_chunk(&stream, b"kernel is too large").await?;
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}
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}
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_ => return Err(Error::UnrecognizedPacket)
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@ -1,16 +1,19 @@
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use alloc::{vec, vec::Vec};
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use alloc::{vec, vec::Vec, sync::Arc};
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use libcortex_a9::{mutex::Mutex, sync_channel::{self, sync_channel}};
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use libboard_zynq::println;
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use libsupport_zynq::boot::Core1;
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use dyld;
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use crate::pl::csr;
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use crate::rtio;
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#[derive(Debug)]
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pub enum Message {
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LoadRequest,
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LoadReply,
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LoadRequest(Arc<Vec<u8>>),
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LoadCompleted,
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LoadFailed,
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}
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static CHANNEL_0TO1: Mutex<Option<sync_channel::Receiver<Message>>> = Mutex::new(None);
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@ -54,6 +57,40 @@ impl Control {
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}
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}
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macro_rules! api {
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($i:ident) => ({
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extern { static $i: u8; }
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api!($i = &$i as *const _)
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});
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($i:ident, $d:item) => ({
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$d
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api!($i = $i)
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});
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($i:ident = $e:expr) => {
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(stringify!($i), $e as *const ())
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}
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}
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fn resolve(required: &[u8]) -> Option<u32> {
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let api = &[
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/* proxified syscalls */
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api!(now = csr::rtio::NOW_HI_ADDR as *const _),
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api!(rtio_init = rtio::init),
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api!(rtio_get_destination_status = rtio::get_destination_status),
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api!(rtio_get_counter = rtio::get_counter),
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api!(rtio_output = rtio::output),
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api!(rtio_output_wide = rtio::output_wide),
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api!(rtio_input_timestamp = rtio::input_timestamp),
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api!(rtio_input_data = rtio::input_data),
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api!(rtio_input_timestamped_data = rtio::input_timestamped_data),
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];
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api.iter()
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.find(|&&(exported, _)| exported.as_bytes() == required)
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.map(|&(_, ptr)| ptr as u32)
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}
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#[no_mangle]
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pub fn main_core1() {
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println!("Core1 started");
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@ -70,10 +107,20 @@ pub fn main_core1() {
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}
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let core1_rx = core1_rx.unwrap();
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let mut image = vec![0; 32768];
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for message in core1_rx {
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println!("core1 received: {:?}", message);
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match *message {
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Message::LoadRequest => core1_tx.send(Message::LoadReply),
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Message::LoadRequest(data) => {
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match dyld::Library::load(&data, &mut image, &resolve) {
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Ok(library) => {
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core1_tx.send(Message::LoadCompleted)
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},
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Err(error) => {
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println!("failed to load shared library: {}", error);
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core1_tx.send(Message::LoadFailed)
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}
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}
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},
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_ => println!("Core1 received unexpected message: {:?}", message),
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}
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}
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