From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/arch/riscv/kernel/time.c | 22 +++++++++++++---------
1 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/kernel/arch/riscv/kernel/time.c b/kernel/arch/riscv/kernel/time.c
index 15f4ab4..8a5cf99 100644
--- a/kernel/arch/riscv/kernel/time.c
+++ b/kernel/arch/riscv/kernel/time.c
@@ -1,23 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2012 Regents of the University of California
* Copyright (C) 2017 SiFive
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/of_clk.h>
#include <linux/clocksource.h>
#include <linux/delay.h>
#include <asm/sbi.h>
+#include <asm/processor.h>
unsigned long riscv_timebase;
+EXPORT_SYMBOL_GPL(riscv_timebase);
void __init time_init(void)
{
@@ -27,6 +21,7 @@
cpu = of_find_node_by_path("/cpus");
if (!cpu || of_property_read_u32(cpu, "timebase-frequency", &prop))
panic(KERN_WARNING "RISC-V system with no 'timebase-frequency' in DTS\n");
+ of_node_put(cpu);
riscv_timebase = prop;
lpj_fine = riscv_timebase / HZ;
@@ -34,3 +29,12 @@
of_clk_init(NULL);
timer_probe();
}
+
+void clocksource_arch_init(struct clocksource *cs)
+{
+#ifdef CONFIG_GENERIC_GETTIMEOFDAY
+ cs->vdso_clock_mode = VDSO_CLOCKMODE_ARCHTIMER;
+#else
+ cs->vdso_clock_mode = VDSO_CLOCKMODE_NONE;
+#endif
+}
--
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