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bcm64: make the kernel use virtual timer counter register for cycles()

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cinap_lenrek 2021-07-25 14:12:17 +00:00
parent b7e67e9e36
commit 8a8329ad95
1 changed files with 3 additions and 0 deletions
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3
sys/src/9/bcm64/l.s
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@ -298,6 +298,9 @@ _goodnight:
RETURN RETURN
TEXT vcycles(SB), 1, $-4 TEXT vcycles(SB), 1, $-4
MRS CNTVCT_EL0, R0
RETURN
TEXT lcycles(SB), 1, $-4 TEXT lcycles(SB), 1, $-4
MRS PMCCNTR_EL0, R0 MRS PMCCNTR_EL0, R0
RETURN RETURN