On 3/6/20 4:44 PM, Gerd Hoffmann wrote:
Factor out TimerKHz and ShiftTSC calculation to tsctimer_configure().
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
src/hw/timer.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/src/hw/timer.c b/src/hw/timer.c
index bdcb3bfca211..ce3d63cd75f6 100644
--- a/src/hw/timer.c
+++ b/src/hw/timer.c
@@ -58,6 +58,18 @@ u8 ShiftTSC VARFSEG;
* Internal timer setup
****************************************************************/
+static void
+tsctimer_configure(u64 t)
+{
+ while (t >= (1<<24)) {
+ ShiftTSC++;
+ t = (t + 1) >> 1;
+ }
+ TimerKHz = DIV_ROUND_UP((u32)t, 1000 * PMTIMER_TO_PIT);
+ TimerPort = 0;
+ dprintf(1, "CPU Mhz=%u\n", (TimerKHz << ShiftTSC) / 1000);
+}
+
#define CALIBRATE_COUNT 0x800 // Approx 1.7ms
// Calibrate the CPU time-stamp-counter
@@ -87,14 +99,7 @@ tsctimer_setup(void)
dprintf(6, "tsc calibrate start=%u end=%u diff=%u\n"
, (u32)start, (u32)end, (u32)diff);
u64 t = DIV_ROUND_UP(diff * PMTIMER_HZ, CALIBRATE_COUNT);
- while (t >= (1<<24)) {
- ShiftTSC++;
- t = (t + 1) >> 1;
- }
- TimerKHz = DIV_ROUND_UP((u32)t, 1000 * PMTIMER_TO_PIT);
- TimerPort = 0;
-
- dprintf(1, "CPU Mhz=%u\n", (TimerKHz << ShiftTSC) / 1000);
+ tsctimer_configure(t);
}
// Setup internal timers.
Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
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