Differential D14633 Diff 41202 sys/x86/acpica/acpi_wakeup.c

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sys/x86/acpica/acpi_wakeup.c

Show First 20 Lines • Show All 135 Lines • ▼ Show 20 Lines	for (ms = 0; ms < 5000; ms++) {
if (!CPU_ISSET(cpu, &suspended_cpus))		if (!CPU_ISSET(cpu, &suspended_cpus))
return (1); /* return SUCCESS */		return (1); /* return SUCCESS */
DELAY(1000);		DELAY(1000);
}		}
return (0); /* return FAILURE */		return (0); /* return FAILURE */
}		}

#define WARMBOOT_TARGET 0		#define WARMBOOT_TARGET 0
		#ifdef __amd64__
#define WARMBOOT_OFF (KERNBASE + 0x0467)		#define WARMBOOT_OFF (KERNBASE + 0x0467)
#define WARMBOOT_SEG (KERNBASE + 0x0469)		#define WARMBOOT_SEG (KERNBASE + 0x0469)
		#else /* __i386__ */
		#define WARMBOOT_OFF (PMAP_MAP_LOW + 0x0467)
		#define WARMBOOT_SEG (PMAP_MAP_LOW + 0x0469)
		#endif

#define CMOS_REG (0x70)		#define CMOS_REG (0x70)
#define CMOS_DATA (0x71)		#define CMOS_DATA (0x71)
#define BIOS_RESET (0x0f)		#define BIOS_RESET (0x0f)
#define BIOS_WARM (0x0a)		#define BIOS_WARM (0x0a)

static void		static void
acpi_wakeup_cpus(struct acpi_softc *sc)		acpi_wakeup_cpus(struct acpi_softc *sc)
Show All 27 Lines

#ifdef __i386__		#ifdef __i386__
/*		/*
* Remove the identity mapping of low memory for all CPUs and sync		* Remove the identity mapping of low memory for all CPUs and sync
* the TLB for the BSP. The APs are now spinning in		* the TLB for the BSP. The APs are now spinning in
* cpususpend_handler() and we will release them soon. Then each		* cpususpend_handler() and we will release them soon. Then each
* will invalidate its TLB.		* will invalidate its TLB.
*/		*/
kernel_pmap->pm_pdir[0] = 0;		PTD[KPTDI] = 0;
invltlb_glob();		invltlb_glob();
#endif		#endif

/* restore the warmstart vector */		/* restore the warmstart vector */
(uint32_t )WARMBOOT_OFF = mpbioswarmvec;		(uint32_t )WARMBOOT_OFF = mpbioswarmvec;

outb(CMOS_REG, BIOS_RESET);		outb(CMOS_REG, BIOS_RESET);
outb(CMOS_DATA, mpbiosreason);		outb(CMOS_DATA, mpbiosreason);
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Lines	#ifdef __i386__
* Map some low memory with virt == phys for ACPI wakecode		* Map some low memory with virt == phys for ACPI wakecode
* to use to jump to high memory after enabling paging. This		* to use to jump to high memory after enabling paging. This
* is the same as for similar jump in locore, except the		* is the same as for similar jump in locore, except the
* jump is a single instruction, and we know its address		* jump is a single instruction, and we know its address
* more precisely so only need a single PTD, and we have to		* more precisely so only need a single PTD, and we have to
* be careful to use the kernel map (PTD[0] is for curthread		* be careful to use the kernel map (PTD[0] is for curthread
* which may be a user thread in deprecated APIs).		* which may be a user thread in deprecated APIs).
*/		*/
kernel_pmap->pm_pdir[0] = PTD[KPTDI];		PTD[KPTDI] = PTD[LOWPTDI];
#endif		#endif

/* Call ACPICA to enter the desired sleep state */		/* Call ACPICA to enter the desired sleep state */
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)		if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
status = AcpiEnterSleepStateS4bios();		status = AcpiEnterSleepStateS4bios();
else		else
status = AcpiEnterSleepState(state);		status = AcpiEnterSleepState(state);
if (ACPI_FAILURE(status)) {		if (ACPI_FAILURE(status)) {
▲ Show 20 Lines • Show All 186 Lines • Show Last 20 Lines