ref: 89613916a9b97b15a6f053f2a64335529b181d9b
parent: ae67a130d6b012c564c86439e972acc8f9ccd990
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Sun Jul 25 10:12:17 EDT 2021
bcm64: make the kernel use virtual timer counter register for cycles()
--- a/sys/src/9/bcm64/l.s
+++ b/sys/src/9/bcm64/l.s
@@ -298,6 +298,9 @@
RETURN
TEXT vcycles(SB), 1, $-4
+ MRS CNTVCT_EL0, R0
+ RETURN
+
TEXT lcycles(SB), 1, $-4
MRS PMCCNTR_EL0, R0
RETURN
--
⑨