forked from M-Labs/zynq-rs
main: refactor into abort, panic, ram
This commit is contained in:
parent
92c274348f
commit
3279aab961
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@ -0,0 +1,13 @@
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use crate::println;
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#[no_mangle]
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pub unsafe extern "C" fn PrefetchAbort() {
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println!("PrefetchAbort");
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loop {}
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}
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#[no_mangle]
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pub unsafe extern "C" fn DataAbort() {
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println!("DataAbort");
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loop {}
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}
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65
src/main.rs
65
src/main.rs
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@ -10,10 +10,7 @@
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#![allow(dead_code)]
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extern crate alloc;
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use alloc::{vec, vec::Vec, alloc::Layout};
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use core::alloc::GlobalAlloc;
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use core::ptr::NonNull;
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use core::cell::RefCell;
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use alloc::{vec, vec::Vec};
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use core::mem::transmute;
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use r0::zero_bss;
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use compiler_builtins as _;
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@ -21,12 +18,14 @@ use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
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use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};
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use smoltcp::time::Instant;
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use smoltcp::socket::SocketSet;
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use linked_list_allocator::Heap;
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mod regs;
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mod cortex_a9;
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mod stdio;
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mod abort;
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mod panic;
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mod zynq;
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mod stdio;
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mod ram;
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use crate::regs::{RegisterR, RegisterW};
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use crate::cortex_a9::{asm, regs::*, mmu};
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@ -97,11 +96,7 @@ fn main() {
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let mut ddr = zynq::ddr::DdrRam::new();
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println!("DDR: {:?}", ddr.status());
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ddr.memtest();
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unsafe {
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ALLOCATOR.0.borrow_mut()
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.init(ddr.ptr::<u8>() as usize, ddr.size());
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}
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ram::init_alloc(&mut ddr);
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let eth = zynq::eth::Eth::default(HWADDR.clone());
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println!("Eth on");
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@ -181,52 +176,6 @@ fn main() {
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// None => println!("eth tx shortage"),
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// }
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}
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}
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#[panic_handler]
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fn panic(info: &core::panic::PanicInfo) -> ! {
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println!("\nPanic: {}", info);
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zynq::slcr::RegisterBlock::unlocked(|slcr| slcr.soft_reset());
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loop {}
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}
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#[global_allocator]
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static ALLOCATOR: HeapAlloc = HeapAlloc(RefCell::new(Heap::empty()));
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/// LockedHeap doesn't locking properly
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struct HeapAlloc(RefCell<Heap>);
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/// FIXME: unsound; lock properly
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unsafe impl Sync for HeapAlloc {}
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unsafe impl GlobalAlloc for HeapAlloc {
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unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
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self.0.borrow_mut()
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.allocate_first_fit(layout)
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.ok()
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.map_or(0 as *mut u8, |allocation| allocation.as_ptr())
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}
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unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
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self.0.borrow_mut()
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.deallocate(NonNull::new_unchecked(ptr), layout)
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}
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}
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#[alloc_error_handler]
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fn alloc_error(_: core::alloc::Layout) -> ! {
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panic!("alloc_error")
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}
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#[no_mangle]
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pub unsafe extern "C" fn PrefetchAbort() {
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println!("PrefetchAbort");
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loop {}
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}
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#[no_mangle]
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pub unsafe extern "C" fn DataAbort() {
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println!("DataAbort");
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loop {}
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}
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@ -0,0 +1,9 @@
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use crate::{println, zynq};
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#[panic_handler]
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fn panic(info: &core::panic::PanicInfo) -> ! {
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println!("\nPanic: {}", info);
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zynq::slcr::RegisterBlock::unlocked(|slcr| slcr.soft_reset());
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loop {}
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}
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@ -0,0 +1,42 @@
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use core::cell::RefCell;
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use core::alloc::GlobalAlloc;
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use core::ptr::NonNull;
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use alloc::alloc::Layout;
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use linked_list_allocator::Heap;
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use crate::zynq::ddr::DdrRam;
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#[global_allocator]
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static ALLOCATOR: HeapAlloc = HeapAlloc(RefCell::new(Heap::empty()));
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/// LockedHeap doesn't locking properly
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struct HeapAlloc(RefCell<Heap>);
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/// FIXME: unsound; lock properly
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unsafe impl Sync for HeapAlloc {}
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unsafe impl GlobalAlloc for HeapAlloc {
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unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
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self.0.borrow_mut()
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.allocate_first_fit(layout)
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.ok()
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.map_or(0 as *mut u8, |allocation| allocation.as_ptr())
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}
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unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
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self.0.borrow_mut()
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.deallocate(NonNull::new_unchecked(ptr), layout)
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}
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}
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pub fn init_alloc(ddr: &mut DdrRam) {
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unsafe {
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ALLOCATOR.0.borrow_mut()
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.init(ddr.ptr::<u8>() as usize, ddr.size());
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}
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}
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#[alloc_error_handler]
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fn alloc_error(_: core::alloc::Layout) -> ! {
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panic!("alloc_error")
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}
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@ -186,7 +186,6 @@ impl DdrRam {
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self.regs.mode_sts_reg.read().operating_mode()
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}
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// TODO: move into trait
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pub fn ptr<T>(&mut self) -> *mut T {
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0x0010_0000 as *mut _
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}
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