riscv64: initialize stathz, profhz like other platforms do

Don't hardcode 100 and 1000.  Use hz(9) for stathz, compute profhz
using stathz, just like most other platforms.

Link: https://marc.info/?l=openbsd-tech&m=167479021815637&w=2
ok jca@

diff --git a/sys/arch/riscv64/riscv64/clock.c b/sys/arch/riscv64/riscv64/clock.c
index d681b66..44459d3 100644 (file)
--- a/sys/arch/riscv64/riscv64/clock.c
+++ b/sys/arch/riscv64/riscv64/clock.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: clock.c,v 1.7 2022/12/03 15:03:49 jca Exp $   */
+/*     $OpenBSD: clock.c,v 1.8 2023/01/27 15:37:16 cheloha Exp $       */
 
 /*
  * Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
@@ -92,8 +92,8 @@ cpu_initclocks(void)
        timer_nsec_cycle_ratio = tb_freq * (1ULL << 32) / 1000000000;
        timer_nsec_max = UINT64_MAX / timer_nsec_cycle_ratio;
 
-       stathz = 100;
-       profhz = 1000; /* must be a multiple of stathz */
+       stathz = hz;
+       profhz = stathz * 10;
        clockintr_init(CL_RNDSTAT);
 
        riscv_intc_intr_establish(IRQ_TIMER_SUPERVISOR, 0,