Move more syscall usages to helper functions.
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parent
ca67da16e6
commit
5705f8d2ab
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@ -1,7 +1,5 @@
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use crate::syscall;
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use crate::zion;
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use crate::zion::z_cap_t;
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use core::ffi::c_void;
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// From /zion/include/ztypes.h
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const Z_INIT_SELF_PROC: u64 = 0x4000_0000;
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@ -14,22 +12,16 @@ pub static mut INIT_ENDPOINT: z_cap_t = 0;
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pub fn parse_init_port(port_cap: z_cap_t) {
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loop {
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let mut num_bytes: u64 = 8;
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let mut init_sig: u64 = 0;
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let mut bytes: [u8; 8] = [0; 8];
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let mut caps: [u64; 1] = [0];
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let mut num_caps: u64 = 1;
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let req = zion::ZPortPollReq {
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port_cap,
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num_bytes: &mut num_bytes as *mut u64,
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data: &mut init_sig as *mut u64 as *mut c_void,
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caps: &mut caps as *mut u64,
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num_caps: &mut num_caps as *mut u64,
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};
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let resp = syscall::syscall(zion::kZionPortPoll, &req);
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let resp = syscall::port_poll(port_cap, &mut bytes, &mut caps);
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if let Err(_) = resp {
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break;
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}
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let init_sig = u64::from_le_bytes(bytes);
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unsafe {
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match init_sig {
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Z_INIT_SELF_PROC => SELF_PROC_CAP = caps[0],
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@ -1,6 +1,4 @@
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use crate::init::SELF_VMAS_CAP;
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use crate::syscall;
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use crate::zion;
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use linked_list_allocator::LockedHeap;
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#[global_allocator]
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@ -11,24 +9,8 @@ pub static mut CAN_ALLOC: bool = false;
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pub fn init_heap() {
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// 1 MiB
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let size = 0x10_0000;
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let mut vmmo_cap = 0;
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let obj_req = zion::ZMemoryObjectCreateReq {
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size,
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vmmo_cap: &mut vmmo_cap as *mut u64,
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};
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syscall::syscall(zion::kZionMemoryObjectCreate, &obj_req)
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.expect("Failed to create memory object");
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let mut vaddr: u64 = 0;
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let vmas_req = zion::ZAddressSpaceMapReq {
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vmmo_cap,
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vmas_cap: unsafe { SELF_VMAS_CAP },
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align: 0x2000,
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vaddr: &mut vaddr as *mut u64,
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vmas_offset: 0,
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};
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syscall::syscall(zion::kZionAddressSpaceMap, &vmas_req).expect("Failed to map memory object");
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let vmmo_cap = syscall::memory_object_create(size).expect("Failed to create memory object");
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let vaddr = syscall::address_space_map(vmmo_cap).expect("Failed to map memory object");
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unsafe {
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ALLOCATOR.lock().init(vaddr as *mut u8, size as usize);
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CAN_ALLOC = true;
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@ -72,3 +72,46 @@ pub fn thread_exit() -> ! {
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let _ = syscall(zion::kZionThreadExit, &zion::ZThreadExitReq {});
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unreachable!();
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}
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pub fn memory_object_create(size: u64) -> Result<z_cap_t, ZError> {
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let mut vmmo_cap = 0;
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let obj_req = zion::ZMemoryObjectCreateReq {
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size,
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vmmo_cap: &mut vmmo_cap as *mut u64,
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};
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syscall(zion::kZionMemoryObjectCreate, &obj_req)?;
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Ok(vmmo_cap)
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}
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pub fn address_space_map(vmmo_cap: z_cap_t) -> Result<u64, ZError> {
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let mut vaddr: u64 = 0;
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// FIXME: Allow caller to pass these options.
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let vmas_req = zion::ZAddressSpaceMapReq {
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vmmo_cap,
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vmas_cap: unsafe { crate::init::SELF_VMAS_CAP },
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align: 0x2000,
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vaddr: &mut vaddr as *mut u64,
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vmas_offset: 0,
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};
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syscall(zion::kZionAddressSpaceMap, &vmas_req)?;
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Ok(vaddr)
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}
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pub fn port_poll(
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port_cap: z_cap_t,
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bytes: &mut [u8],
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caps: &mut [u64],
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) -> Result<(u64, u64), ZError> {
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let mut num_bytes = bytes.len() as u64;
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let mut num_caps = caps.len() as u64;
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let req = zion::ZPortPollReq {
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port_cap,
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data: bytes.as_mut_ptr() as *mut c_void,
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num_bytes: &mut num_bytes as *mut u64,
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caps: caps.as_mut_ptr(),
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num_caps: &mut num_caps as *mut u64,
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};
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syscall(zion::kZionPortPoll, &req)?;
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Ok((num_bytes, num_caps))
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}
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