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satman/kern: init locked PMP on startup

This commit is contained in:
occheung 2021-10-08 14:36:24 +08:00 committed by Sébastien Bourdeauducq
parent 27a7a96626
commit 0a59c889de
2 changed files with 12 additions and 2 deletions
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4
artiq/firmware/ksupport/lib.rs
View File

@ -23,7 +23,7 @@ use proto_artiq::{kernel_proto, rpc_proto};
use kernel_proto::*;
#[cfg(has_rtio_dma)]
use board_misoc::csr;
use riscv::register::{mcause, mepc};
use riscv::register::{mcause, mepc, mtval};
fn send(request: &Message) {
unsafe { mailbox::send(request as *const _ as usize) }
@ -493,11 +493,13 @@ pub unsafe fn main() {
let _end = library.lookup(b"_end").unwrap();
let __modinit__ = library.lookup(b"__modinit__").unwrap();
let typeinfo = library.lookup(b"typeinfo");
let _sstack_guard = library.lookup(b"_sstack_guard").unwrap();
LIBRARY = Some(library);
ptr::write_bytes(__bss_start as *mut u8, 0, (_end - __bss_start) as usize);
board_misoc::pmp::init_stack_guard(_sstack_guard as usize);
board_misoc::cache::flush_cpu_dcache();
board_misoc::cache::flush_cpu_icache();

10
artiq/firmware/satman/main.rs
View File

@ -9,7 +9,7 @@ extern crate board_artiq;
extern crate riscv;
use core::convert::TryFrom;
use board_misoc::{csr, ident, clock, uart_logger, i2c};
use board_misoc::{csr, ident, clock, uart_logger, i2c, pmp};
#[cfg(has_si5324)]
use board_artiq::si5324;
#[cfg(has_wrpll)]
@ -449,6 +449,14 @@ const SI5324_SETTINGS: si5324::FrequencySettings
#[no_mangle]
pub extern fn main() -> i32 {
extern {
static mut _sstack_guard: u8;
}
unsafe {
pmp::init_stack_guard(&_sstack_guard as *const u8 as usize);
}
clock::init();
uart_logger::ConsoleLogger::register();