Merge #189

189: Initial Rust CMSE support r=thejpster a=hug-dev

Armv8-M and Armv8.1-M architecture profiles have an optional Security Extension which provides a set of Security features.
This patch adds initial support of the Cortex-M Security Extensions but providing support for the TT intrinsics and helper functions on top of it in the newly added `cmse` module of this crate.
The code is a Rust idiomatic implementation of the C requirements described in this document: https://developer.arm.com/docs/ecm0359818/latest

Executed `assemble.sh` to generate the new static libraries containing the `TT*` instructions. Tested `check_blobs.sh` locally and it passed.
Tested on QEMU using the `mps2-an505` machine.

Co-authored-by: Hugues de Valon <hugues.devalon@arm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/peripheral/scb.rs b/src/peripheral/scb.rs
index dc82dc7..dfcc729 100644
--- a/src/peripheral/scb.rs
+++ b/src/peripheral/scb.rs
@@ -713,6 +713,7 @@ impl SCB {
     ///
     /// Cleaning the cache causes whatever data is present in the cache to be immediately written
     /// to main memory, overwriting whatever was in main memory.
+    #[inline]
     pub fn clean_dcache_by_ref<T>(&mut self, obj: &T) {
         self.clean_dcache_by_address(obj as *const T as usize, core::mem::size_of::<T>());
     }
@@ -729,6 +730,7 @@ impl SCB {
     ///
     /// Cleaning the cache causes whatever data is present in the cache to be immediately written
     /// to main memory, overwriting whatever was in main memory.
+    #[inline]
     pub fn clean_dcache_by_slice<T>(&mut self, slice: &[T]) {
         self.clean_dcache_by_address(slice.as_ptr() as usize,
                                      slice.len() * core::mem::size_of::<T>());