4 #include <linux/clocksource.h>
6 /* Number of PMTMR ticks expected during calibration run */
7 #define PMTMR_TICKS_PER_SEC 3579545
9 /* limit it to 24 bits */
10 #define ACPI_PM_MASK CLOCKSOURCE_MASK(24)
13 #define ACPI_PM_OVRRUN (1<<24)
15 #ifdef CONFIG_X86_PM_TIMER
17 extern u32
acpi_pm_read_verified(void);
18 extern u32 pmtmr_ioport
;
20 static inline u32
acpi_pm_read_early(void)
24 /* mask the output to 24 bits */
25 return acpi_pm_read_verified() & ACPI_PM_MASK
;
28 extern void pmtimer_wait(unsigned);
32 static inline u32
acpi_pm_read_early(void)
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