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kernel: add function to calculate delta between two cycle timestamps

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max 🍓
2023-04-28 21:04:50 +01:00
parent 72d8facd47
commit 6b1b4a2416
2 changed files with 6 additions and 0 deletions
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4
include/socks/cpu.h
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@@ -36,6 +36,10 @@ extern void cpu_set_available(unsigned int cpu_id);
extern void cpu_set_online(unsigned int cpu_id); extern void cpu_set_online(unsigned int cpu_id);
extern cycles_t get_cycles(void); extern cycles_t get_cycles(void);
static inline cycles_t cycles_diff(cycles_t then, cycles_t now)
{
return now >= then ? now - then : (CYCLES_MAX - then) + now;
}
#define irq_enable() ml_int_enable() #define irq_enable() ml_int_enable()
#define irq_disable() ml_int_disable() #define irq_disable() ml_int_disable()

2
include/socks/types.h
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@@ -3,6 +3,8 @@
#include <stdint.h> #include <stdint.h>
#define CYCLES_MAX UINT64_MAX
typedef uintptr_t phys_addr_t; typedef uintptr_t phys_addr_t;
typedef uint64_t cycles_t; typedef uint64_t cycles_t;