setup: make cpu_frequency value globally available

Signed-off-by: Pawel Wieczorkiewicz <[email protected]>
KernelTestFramework · Jul 19, 2022 · c144c0a · c144c0a
1 parent 57bc46d
commit c144c0a
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git a/common/setup.c b/common/setup.c
@@ -64,6 +64,8 @@
 
 boot_flags_t boot_flags;
 
+unsigned long cpu_frequency;
+
 #define QEMU_CONSOLE_PORT 0x0e9
 
 static void __text_init init_console(void) {
@@ -123,15 +125,14 @@ static void __text_init map_bios_area(void) {
 
 static void display_cpu_info(void) {
     char cpu_identifier[49];
-    unsigned long freq;
 
     if (!cpu_vendor_string(cpu_identifier))
         return;
 
     printk("CPU: %.48s\n", cpu_identifier);
-    freq = get_cpu_freq(cpu_identifier);
-    if (freq > 0)
-        printk("Frequency: %lu MHz\n", freq / MHZ(1));
+    cpu_frequency = get_cpu_freq(cpu_identifier);
+    if (cpu_frequency > 0)
+        printk("Frequency: %lu MHz\n", cpu_frequency / MHZ(1));
 }
 
 static void display_banner(void) { draw_logo(); }

diff --git a/include/setup.h b/include/setup.h
@@ -39,6 +39,7 @@ struct boot_flags {
 typedef struct boot_flags boot_flags_t;
 
 extern char cpu_identifier[49];
+extern unsigned long cpu_frequency;
 extern boot_flags_t boot_flags;
 
 /* Static declarations */