From 54869df7835565d0983096f65326cdd2d5f4f3d8 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Thu, 28 Nov 2024 00:06:09 +0100
Subject: changes

---
 kernel/arch/i386/tsc.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 kernel/arch/i386/tsc.c

(limited to 'kernel/arch')

diff --git a/kernel/arch/i386/tsc.c b/kernel/arch/i386/tsc.c
new file mode 100644
index 0000000..a4f3c3f
--- /dev/null
+++ b/kernel/arch/i386/tsc.c
@@ -0,0 +1,16 @@
+#include <arch/i386/tsc.h>
+
+u64 cpu_mhz = 0;
+u64 tsc_get_hz(void);
+
+void tsc_init(void) {
+  cpu_mhz = tsc_get_hz() / 10000;
+}
+
+u64 tsc_get_mhz() {
+  return cpu_mhz;
+}
+
+u64 tsc_calculate_ms(u64 tsc) {
+  return tsc / (cpu_mhz * 1000);
+}
-- 
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