ppc.h: use mftb on ppc

[userspace-rcu.git] / README.md

diff --git a/README.md b/README.md
index cd24cc53ba0f3887d08c467be033f2e6af6f661d..7a596e16b571bb1c02c3ce8c113eb88f60ba60b3 100644 (file)
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ Currently, the following architectures are supported:
   - hppa/PA-RISC
   - m68k
   - RISC-V
+  - LoongArch
 
 Tested on:
 
@@ -65,7 +66,6 @@ Should also work on:
   - Android
   - NetBSD 5
   - OpenBSD
-  - Darwin
 
 (more testing needed before claiming support for these OS).
 
@@ -251,6 +251,14 @@ protected pointer.
 After, `urcu_<flavor>_synchronize_rcu()` must be called. When it
 returns, the old values are not in usage anymore.
 
+As an alternative to `urcu_<flavor>_synchronize_rcu()`,
+it is also possible to use the urcu polling mechanism to wait for a
+grace period to elapse. This can be done by using
+`urcu_<flavor>_start_poll_synchronize_rcu()`
+to start the grace period polling, and then invoke
+`urcu_<flavor>_poll_state_synchronize_rcu()`, which returns true if
+the grace period has completed, false otherwise.
+
 
 ### Usage of `liburcu-defer`