Updated the use of DMB instruction in rte_*mb APIs for Armv8-a.
Signed-off-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Acked-by: Jerin Jacob <jer...@marvell.com>
---
doc/guides/rel_notes/release_20_08.rst | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/doc/guides/rel_notes/release_20_08.rst
b/doc/guides/rel_notes/release_20_08.rst
index 5cbc4ce14..567ae6b2a 100644
--- a/doc/guides/rel_notes/release_20_08.rst
+++ b/doc/guides/rel_notes/release_20_08.rst
@@ -56,6 +56,13 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
+* **rte_*mb APIs are updated to use DMB instruction for Armv8-a.**
+
+ Armv8-a memory model has been strengthened to require other-multi-copy
+ atomicity. This allows for using DMB instruction instead of DSB for IO
+ barriers. rte_*mb APIs, for Armv8-a platforms, are changed to use DMB
+ instruction to reflect this.
+
* **Updated PCAP driver.**
Updated PCAP driver with new features and improvements, including:
--
2.17.1
