Differential D25273 Diff 73792 sys/x86/acpica/acpi_wakeup.c

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sys/x86/acpica/acpi_wakeup.c

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	static void acpi_stop_beep(void *);			static void acpi_stop_beep(void *);

	#ifdef SMP			#ifdef SMP
	static int acpi_wakeup_ap(struct acpi_softc *, int);			static int acpi_wakeup_ap(struct acpi_softc *, int);
	static void acpi_wakeup_cpus(struct acpi_softc *);			static void acpi_wakeup_cpus(struct acpi_softc *);
	#endif			#endif

	#ifdef __amd64__			#ifdef __amd64__
	#define ACPI_WAKEPAGES 4			#define ACPI_WAKEPAGES 5
	#else			#else
	#define ACPI_WAKEPAGES 1			#define ACPI_WAKEPAGES 1
	#endif			#endif

	#define WAKECODE_FIXUP(offset, type, val) do { \			#define WAKECODE_FIXUP(offset, type, val) do { \
	type *addr; \			type *addr; \
	addr = (type *)(sc->acpi_wakeaddr + (offset)); \			addr = (type *)(sc->acpi_wakeaddr + (offset)); \
	*addr = val; \			*addr = val; \
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	}			}

	void			void
	acpi_install_wakeup_handler(struct acpi_softc *sc)			acpi_install_wakeup_handler(struct acpi_softc *sc)
	{			{
	static void *wakeaddr;			static void *wakeaddr;
	void *wakepages[ACPI_WAKEPAGES];			void *wakepages[ACPI_WAKEPAGES];
	#ifdef __amd64__			#ifdef __amd64__
	uint64_t pt4, pt3, *pt2;			uint64_t pt5, pt4, pt3, pt2;
	vm_paddr_t pt4pa, pt3pa, pt2pa;			vm_paddr_t pt5pa, pt4pa, pt3pa, pt2pa;
	int i;			int i;
	#endif			#endif

	if (wakeaddr != NULL)			if (wakeaddr != NULL)
	return;			return;

	if (acpi_alloc_wakeup_handler(wakepages) == NULL)			if (acpi_alloc_wakeup_handler(wakepages) == NULL)
	return;			return;

	wakeaddr = wakepages[0];			wakeaddr = wakepages[0];
	sc->acpi_wakeaddr = (vm_offset_t)wakeaddr;			sc->acpi_wakeaddr = (vm_offset_t)wakeaddr;
	sc->acpi_wakephys = vtophys(wakeaddr);			sc->acpi_wakephys = vtophys(wakeaddr);

	#ifdef __amd64__			#ifdef __amd64__
				if (la57) {
				pt5 = wakepages[4];
				pt5pa = vtophys(pt5);
				}
	pt4 = wakepages[1];			pt4 = wakepages[1];
	pt3 = wakepages[2];			pt3 = wakepages[2];
	pt2 = wakepages[3];			pt2 = wakepages[3];
	pt4pa = vtophys(pt4);			pt4pa = vtophys(pt4);
	pt3pa = vtophys(pt3);			pt3pa = vtophys(pt3);
	pt2pa = vtophys(pt2);			pt2pa = vtophys(pt2);
	#endif			#endif

	bcopy(wakecode, (void *)sc->acpi_wakeaddr, sizeof(wakecode));			bcopy(wakecode, (void *)sc->acpi_wakeaddr, sizeof(wakecode));

	/* Patch GDT base address, ljmp targets. */			/* Patch GDT base address, ljmp targets. */
	WAKECODE_FIXUP((bootgdtdesc + 2), uint32_t,			WAKECODE_FIXUP((bootgdtdesc + 2), uint32_t,
	sc->acpi_wakephys + bootgdt);			sc->acpi_wakephys + bootgdt);
	WAKECODE_FIXUP((wakeup_sw32 + 2), uint32_t,			WAKECODE_FIXUP((wakeup_sw32 + 2), uint32_t,
	sc->acpi_wakephys + wakeup_32);			sc->acpi_wakephys + wakeup_32);
	#ifdef __amd64__			#ifdef __amd64__
	WAKECODE_FIXUP((wakeup_sw64 + 1), uint32_t,			WAKECODE_FIXUP((wakeup_sw64 + 1), uint32_t,
	sc->acpi_wakephys + wakeup_64);			sc->acpi_wakephys + wakeup_64);
	WAKECODE_FIXUP(wakeup_pagetables, uint32_t, pt4pa);			WAKECODE_FIXUP(wakeup_pagetables, uint32_t, la57 ? (pt5pa \| 0x1) :
				pt4pa);
	#endif			#endif

	/* Save pointers to some global data. */			/* Save pointers to some global data. */
	WAKECODE_FIXUP(wakeup_ret, void *, resumectx);			WAKECODE_FIXUP(wakeup_ret, void *, resumectx);
	#ifndef __amd64__			#ifndef __amd64__
	WAKECODE_FIXUP(wakeup_cr3, register_t, pmap_get_kcr3());			WAKECODE_FIXUP(wakeup_cr3, register_t, pmap_get_kcr3());
	#else /* __amd64__ */			#else /* __amd64__ */
	/* Create the initial 1GB replicated page tables */			/* Create the initial 1GB replicated page tables */
	for (i = 0; i < 512; i++) {			for (i = 0; i < NPTEPG; i++) {
				if (la57) {
				pt5[i] = (uint64_t)pt4pa;
				pt5[i] \|= PG_V \| PG_RW \| PG_U;
				}

	/*			/*
	* Each slot of the level 4 pages points			* Each slot of the level 4 pages points
	* to the same level 3 page			* to the same level 3 page
	*/			*/
	pt4[i] = (uint64_t)pt3pa;			pt4[i] = (uint64_t)pt3pa;
	pt4[i] \|= PG_V \| PG_RW \| PG_U;			pt4[i] \|= PG_V \| PG_RW \| PG_U;

	/*			/*
	* Each slot of the level 3 pages points			* Each slot of the level 3 pages points
	* to the same level 2 page			* to the same level 2 page
	*/			*/
	pt3[i] = (uint64_t)pt2pa;			pt3[i] = (uint64_t)pt2pa;
	pt3[i] \|= PG_V \| PG_RW \| PG_U;			pt3[i] \|= PG_V \| PG_RW \| PG_U;

	/* The level 2 page slots are mapped with 2MB pages for 1GB. */			/* The level 2 page slots are mapped with 2MB pages for 1GB. */
	pt2[i] = i * (2 * 1024 * 1024);			pt2[i] = i * NBPDR;
	pt2[i] \|= PG_V \| PG_RW \| PG_PS \| PG_U;			pt2[i] \|= PG_V \| PG_RW \| PG_PS \| PG_U;
	}			}
	#endif /* !__amd64__ */			#endif /* !__amd64__ */

	if (bootverbose)			if (bootverbose)
	device_printf(sc->acpi_dev, "wakeup code va %#jx pa %#jx\n",			device_printf(sc->acpi_dev, "wakeup code va %#jx pa %#jx\n",
	(uintmax_t)sc->acpi_wakeaddr, (uintmax_t)sc->acpi_wakephys);			(uintmax_t)sc->acpi_wakeaddr, (uintmax_t)sc->acpi_wakephys);
	}			}