x86: duplicate acpi_wakeup.c per i386 and amd64
The file as is is the maze of #ifdef passages, all slightly different. Divorcing i386 and amd64 version actually makes changing the code easier, also no changes for i386 are planned. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D31931
This commit is contained in:
parent
abf774528d
commit
2b6eec531a
@ -32,12 +32,6 @@
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#if defined(__amd64__)
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#define DEV_APIC
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#else
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#include "opt_apic.h"
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#endif
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/eventhandler.h>
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@ -60,10 +54,8 @@ __FBSDID("$FreeBSD$");
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#include <machine/specialreg.h>
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#include <x86/ucode.h>
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#ifdef DEV_APIC
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#include <x86/apicreg.h>
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#include <x86/apicvar.h>
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#endif
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#ifdef SMP
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#include <machine/smp.h>
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#include <machine/vmparam.h>
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@ -98,11 +90,7 @@ static int acpi_wakeup_ap(struct acpi_softc *, int);
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static void acpi_wakeup_cpus(struct acpi_softc *);
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#endif
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#ifdef __amd64__
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#define ACPI_WAKEPAGES 8
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#else
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#define ACPI_WAKEPAGES 1
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#endif
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#define WAKECODE_FIXUP(offset, type, val) do { \
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type *addr; \
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@ -144,13 +132,8 @@ acpi_wakeup_ap(struct acpi_softc *sc, int cpu)
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}
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#define WARMBOOT_TARGET 0
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#ifdef __amd64__
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#define WARMBOOT_OFF (KERNBASE + 0x0467)
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#define WARMBOOT_SEG (KERNBASE + 0x0469)
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#else /* __i386__ */
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#define WARMBOOT_OFF (PMAP_MAP_LOW + 0x0467)
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#define WARMBOOT_SEG (PMAP_MAP_LOW + 0x0469)
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#endif
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#define CMOS_REG (0x70)
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#define CMOS_DATA (0x71)
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@ -164,9 +147,7 @@ acpi_wakeup_cpus(struct acpi_softc *sc)
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int cpu;
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u_char mpbiosreason;
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#ifdef __amd64__
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if (!efi_boot) {
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#endif
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/* save the current value of the warm-start vector */
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mpbioswarmvec = *((uint32_t *)WARMBOOT_OFF);
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outb(CMOS_REG, BIOS_RESET);
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@ -177,9 +158,7 @@ acpi_wakeup_cpus(struct acpi_softc *sc)
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*((volatile u_short *)WARMBOOT_SEG) = sc->acpi_wakephys >> 4;
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outb(CMOS_REG, BIOS_RESET);
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outb(CMOS_DATA, BIOS_WARM); /* 'warm-start' */
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#ifdef __amd64__
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}
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#endif
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/* Wake up each AP. */
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for (cpu = 1; cpu < mp_ncpus; cpu++) {
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@ -193,27 +172,13 @@ acpi_wakeup_cpus(struct acpi_softc *sc)
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}
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}
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#ifdef __i386__
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/*
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* Remove the identity mapping of low memory for all CPUs and sync
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* the TLB for the BSP. The APs are now spinning in
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* cpususpend_handler() and we will release them soon. Then each
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* will invalidate its TLB.
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*/
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pmap_remap_lowptdi(false);
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#endif
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#ifdef __amd64__
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if (!efi_boot) {
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#endif
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/* restore the warmstart vector */
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*(uint32_t *)WARMBOOT_OFF = mpbioswarmvec;
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outb(CMOS_REG, BIOS_RESET);
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outb(CMOS_DATA, mpbiosreason);
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#ifdef __amd64__
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}
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#endif
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}
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#endif
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@ -222,10 +187,8 @@ acpi_sleep_machdep(struct acpi_softc *sc, int state)
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{
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ACPI_STATUS status;
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struct pcb *pcb;
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#ifdef __amd64__
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struct pcpu *pc;
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int i;
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#endif
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if (sc->acpi_wakeaddr == 0ul)
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return (-1); /* couldn't alloc wake memory */
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@ -244,18 +207,13 @@ acpi_sleep_machdep(struct acpi_softc *sc, int state)
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pcb = &susppcbs[0]->sp_pcb;
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if (savectx(pcb)) {
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#ifdef __amd64__
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fpususpend(susppcbs[0]->sp_fpususpend);
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#else
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npxsuspend(susppcbs[0]->sp_fpususpend);
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#endif
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#ifdef SMP
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if (!CPU_EMPTY(&suspcpus) && suspend_cpus(suspcpus) == 0) {
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device_printf(sc->acpi_dev, "Failed to suspend APs\n");
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return (0); /* couldn't sleep */
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}
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#endif
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#ifdef __amd64__
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hw_ibrs_ibpb_active = 0;
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hw_ssb_active = 0;
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cpu_stdext_feature3 = 0;
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@ -263,36 +221,16 @@ acpi_sleep_machdep(struct acpi_softc *sc, int state)
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pc = pcpu_find(i);
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pc->pc_ibpb_set = 0;
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}
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#endif
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WAKECODE_FIXUP(resume_beep, uint8_t, (acpi_resume_beep != 0));
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WAKECODE_FIXUP(reset_video, uint8_t, (acpi_reset_video != 0));
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#ifdef __amd64__
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WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER) &
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~(EFER_LMA));
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#else
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if ((amd_feature & AMDID_NX) != 0)
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WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER));
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WAKECODE_FIXUP(wakeup_cr4, register_t, pcb->pcb_cr4);
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#endif
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WAKECODE_FIXUP(wakeup_pcb, struct pcb *, pcb);
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WAKECODE_FIXUP(wakeup_gdt, uint16_t, pcb->pcb_gdt.rd_limit);
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WAKECODE_FIXUP(wakeup_gdt + 2, uint64_t, pcb->pcb_gdt.rd_base);
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#ifdef __i386__
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/*
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* Map some low memory with virt == phys for ACPI wakecode
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* to use to jump to high memory after enabling paging. This
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* is the same as for similar jump in locore, except the
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* jump is a single instruction, and we know its address
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* more precisely so only need a single PTD, and we have to
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* be careful to use the kernel map (PTD[0] is for curthread
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* which may be a user thread in deprecated APIs).
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*/
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pmap_remap_lowptdi(true);
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#endif
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/* Call ACPICA to enter the desired sleep state */
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if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
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status = AcpiEnterSleepStateS4bios();
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@ -317,11 +255,7 @@ acpi_sleep_machdep(struct acpi_softc *sc, int state)
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* this point.
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*/
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cnresume();
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#ifdef __amd64__
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fpuresume(susppcbs[0]->sp_fpususpend);
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#else
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npxresume(susppcbs[0]->sp_fpususpend);
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#endif
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}
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return (1); /* wakeup successfully */
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@ -343,9 +277,7 @@ acpi_wakeup_machdep(struct acpi_softc *sc, int state, int sleep_result,
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initializecpu();
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PCPU_SET(switchtime, 0);
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PCPU_SET(switchticks, ticks);
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#ifdef DEV_APIC
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lapic_xapic_mode();
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#endif
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#ifdef SMP
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if (!CPU_EMPTY(&suspcpus))
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acpi_wakeup_cpus(sc);
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@ -357,10 +289,8 @@ acpi_wakeup_machdep(struct acpi_softc *sc, int state, int sleep_result,
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resume_cpus(suspcpus);
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#endif
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mca_resume();
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#ifdef __amd64__
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if (vmm_resume_p != NULL)
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vmm_resume_p();
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#endif
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intr_resume(/*suspend_cancelled*/false);
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AcpiSetFirmwareWakingVector(0, 0);
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@ -390,11 +320,7 @@ acpi_alloc_wakeup_handler(void *wakepages[ACPI_WAKEPAGES])
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*/
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for (i = 0; i < ACPI_WAKEPAGES; i++) {
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wakepages[i] = contigmalloc(PAGE_SIZE, M_DEVBUF,
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M_NOWAIT
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#ifdef __i386__
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| M_EXEC
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#endif
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, 0x500, 0xa0000, PAGE_SIZE, 0ul);
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M_NOWAIT, 0x500, 0xa0000, PAGE_SIZE, 0ul);
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if (wakepages[i] == NULL) {
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printf("%s: can't alloc wake memory\n", __func__);
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goto freepages;
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@ -425,11 +351,9 @@ acpi_install_wakeup_handler(struct acpi_softc *sc)
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{
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static void *wakeaddr;
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void *wakepages[ACPI_WAKEPAGES];
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#ifdef __amd64__
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uint64_t *pt5, *pt4, *pt3, *pt2_0, *pt2_1, *pt2_2, *pt2_3;
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vm_paddr_t pt5pa, pt4pa, pt3pa, pt2_0pa, pt2_1pa, pt2_2pa, pt2_3pa;
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int i;
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#endif
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if (wakeaddr != NULL)
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return;
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@ -441,7 +365,6 @@ acpi_install_wakeup_handler(struct acpi_softc *sc)
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sc->acpi_wakeaddr = (vm_offset_t)wakeaddr;
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sc->acpi_wakephys = vtophys(wakeaddr);
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#ifdef __amd64__
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if (la57) {
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pt5 = wakepages[7];
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pt5pa = vtophys(pt5);
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@ -458,7 +381,6 @@ acpi_install_wakeup_handler(struct acpi_softc *sc)
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pt2_1pa = vtophys(pt2_1);
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pt2_2pa = vtophys(pt2_2);
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pt2_3pa = vtophys(pt2_3);
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#endif
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bcopy(wakecode, (void *)sc->acpi_wakeaddr, sizeof(wakecode));
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@ -467,18 +389,13 @@ acpi_install_wakeup_handler(struct acpi_softc *sc)
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sc->acpi_wakephys + bootgdt);
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WAKECODE_FIXUP((wakeup_sw32 + 2), uint32_t,
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sc->acpi_wakephys + wakeup_32);
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#ifdef __amd64__
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WAKECODE_FIXUP((wakeup_sw64 + 1), uint32_t,
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sc->acpi_wakephys + wakeup_64);
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WAKECODE_FIXUP(wakeup_pagetables, uint32_t, la57 ? (pt5pa | 0x1) :
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pt4pa);
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#endif
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/* Save pointers to some global data. */
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WAKECODE_FIXUP(wakeup_ret, void *, resumectx);
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#ifndef __amd64__
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WAKECODE_FIXUP(wakeup_cr3, register_t, pmap_get_kcr3());
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#else /* __amd64__ */
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/* Create 1:1 mapping for the low 4G */
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if (la57) {
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bcopy(kernel_pmap->pm_pmltop, pt5, PAGE_SIZE);
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@ -517,8 +434,6 @@ acpi_install_wakeup_handler(struct acpi_softc *sc)
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pt2_3[i] |= PG_V | PG_RW | PG_PS | PG_U;
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}
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#endif /* !__amd64__ */
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if (bootverbose)
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device_printf(sc->acpi_dev, "wakeup code va %#jx pa %#jx\n",
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(uintmax_t)sc->acpi_wakeaddr, (uintmax_t)sc->acpi_wakephys);
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@ -49,6 +49,7 @@ ia32_assym.h standard \
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clean "ia32_assym.h"
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#
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amd64/acpica/acpi_machdep.c optional acpi
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amd64/acpica/acpi_wakeup.c optional acpi
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acpi_wakecode.o optional acpi \
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dependency "$S/amd64/acpica/acpi_wakecode.S assym.inc" \
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compile-with "${NORMAL_S}" \
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@ -83,6 +83,7 @@ dev/vmd/vmd.c optional vmd
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dev/acpi_support/acpi_wmi_if.m standard
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dev/wbwd/wbwd.c optional wbwd
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i386/acpica/acpi_machdep.c optional acpi
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i386/acpica/acpi_wakeup.c optional acpi
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acpi_wakecode.o optional acpi \
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dependency "$S/i386/acpica/acpi_wakecode.S assym.inc" \
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compile-with "${NORMAL_S}" \
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@ -285,7 +285,6 @@ libkern/x86/crc32_sse42.c standard
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#
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x86/acpica/OsdEnvironment.c optional acpi
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x86/acpica/acpi_apm.c optional acpi
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x86/acpica/acpi_wakeup.c optional acpi
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x86/acpica/srat.c optional acpi
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x86/bios/vpd.c optional vpd
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x86/cpufreq/est.c optional cpufreq
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391
sys/i386/acpica/acpi_wakeup.c
Normal file
391
sys/i386/acpica/acpi_wakeup.c
Normal file
@ -0,0 +1,391 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 Takanori Watanabe <takawata@jp.freebsd.org>
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* Copyright (c) 2001-2012 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
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* Copyright (c) 2003 Peter Wemm
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* Copyright (c) 2008-2012 Jung-uk Kim <jkim@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_apic.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/eventhandler.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/memrange.h>
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#include <sys/smp.h>
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#include <sys/systm.h>
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#include <sys/cons.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/clock.h>
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#include <machine/cpu.h>
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#include <machine/intr_machdep.h>
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#include <machine/md_var.h>
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#include <x86/mca.h>
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#include <machine/pcb.h>
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#include <machine/specialreg.h>
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#include <x86/ucode.h>
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#ifdef DEV_APIC
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#include <x86/apicreg.h>
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#include <x86/apicvar.h>
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#endif
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#ifdef SMP
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#include <machine/smp.h>
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#include <machine/vmparam.h>
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#endif
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#include <contrib/dev/acpica/include/acpi.h>
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#include <dev/acpica/acpivar.h>
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#include "acpi_wakecode.h"
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#include "acpi_wakedata.h"
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/* Make sure the code is less than a page and leave room for the stack. */
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CTASSERT(sizeof(wakecode) < PAGE_SIZE - 1024);
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extern int acpi_resume_beep;
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extern int acpi_reset_video;
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extern int acpi_susp_bounce;
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#ifdef SMP
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extern struct susppcb **susppcbs;
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static cpuset_t suspcpus;
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#else
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static struct susppcb **susppcbs;
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#endif
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static void *acpi_alloc_wakeup_handler(void **);
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static void acpi_stop_beep(void *);
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#ifdef SMP
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static int acpi_wakeup_ap(struct acpi_softc *, int);
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static void acpi_wakeup_cpus(struct acpi_softc *);
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#endif
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#define ACPI_WAKEPAGES 1
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#define WAKECODE_FIXUP(offset, type, val) do { \
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type *addr; \
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addr = (type *)(sc->acpi_wakeaddr + (offset)); \
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*addr = val; \
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} while (0)
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static void
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acpi_stop_beep(void *arg)
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{
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if (acpi_resume_beep != 0)
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timer_spkr_release();
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}
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#ifdef SMP
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static int
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acpi_wakeup_ap(struct acpi_softc *sc, int cpu)
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{
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struct pcb *pcb;
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int vector = (sc->acpi_wakephys >> 12) & 0xff;
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int apic_id = cpu_apic_ids[cpu];
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int ms;
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pcb = &susppcbs[cpu]->sp_pcb;
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WAKECODE_FIXUP(wakeup_pcb, struct pcb *, pcb);
|
||||
WAKECODE_FIXUP(wakeup_gdt, uint16_t, pcb->pcb_gdt.rd_limit);
|
||||
WAKECODE_FIXUP(wakeup_gdt + 2, uint64_t, pcb->pcb_gdt.rd_base);
|
||||
|
||||
ipi_startup(apic_id, vector);
|
||||
|
||||
/* Wait up to 5 seconds for it to resume. */
|
||||
for (ms = 0; ms < 5000; ms++) {
|
||||
if (!CPU_ISSET(cpu, &suspended_cpus))
|
||||
return (1); /* return SUCCESS */
|
||||
DELAY(1000);
|
||||
}
|
||||
return (0); /* return FAILURE */
|
||||
}
|
||||
|
||||
#define WARMBOOT_TARGET 0
|
||||
#define WARMBOOT_OFF (PMAP_MAP_LOW + 0x0467)
|
||||
#define WARMBOOT_SEG (PMAP_MAP_LOW + 0x0469)
|
||||
|
||||
#define CMOS_REG (0x70)
|
||||
#define CMOS_DATA (0x71)
|
||||
#define BIOS_RESET (0x0f)
|
||||
#define BIOS_WARM (0x0a)
|
||||
|
||||
static void
|
||||
acpi_wakeup_cpus(struct acpi_softc *sc)
|
||||
{
|
||||
uint32_t mpbioswarmvec;
|
||||
int cpu;
|
||||
u_char mpbiosreason;
|
||||
|
||||
/* save the current value of the warm-start vector */
|
||||
mpbioswarmvec = *((uint32_t *)WARMBOOT_OFF);
|
||||
outb(CMOS_REG, BIOS_RESET);
|
||||
mpbiosreason = inb(CMOS_DATA);
|
||||
|
||||
/* setup a vector to our boot code */
|
||||
*((volatile u_short *)WARMBOOT_OFF) = WARMBOOT_TARGET;
|
||||
*((volatile u_short *)WARMBOOT_SEG) = sc->acpi_wakephys >> 4;
|
||||
outb(CMOS_REG, BIOS_RESET);
|
||||
outb(CMOS_DATA, BIOS_WARM); /* 'warm-start' */
|
||||
|
||||
/* Wake up each AP. */
|
||||
for (cpu = 1; cpu < mp_ncpus; cpu++) {
|
||||
if (!CPU_ISSET(cpu, &suspcpus))
|
||||
continue;
|
||||
if (acpi_wakeup_ap(sc, cpu) == 0) {
|
||||
/* restore the warmstart vector */
|
||||
*(uint32_t *)WARMBOOT_OFF = mpbioswarmvec;
|
||||
panic("acpi_wakeup: failed to resume AP #%d (PHY #%d)",
|
||||
cpu, cpu_apic_ids[cpu]);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Remove the identity mapping of low memory for all CPUs and sync
|
||||
* the TLB for the BSP. The APs are now spinning in
|
||||
* cpususpend_handler() and we will release them soon. Then each
|
||||
* will invalidate its TLB.
|
||||
*/
|
||||
pmap_remap_lowptdi(false);
|
||||
|
||||
/* restore the warmstart vector */
|
||||
*(uint32_t *)WARMBOOT_OFF = mpbioswarmvec;
|
||||
|
||||
outb(CMOS_REG, BIOS_RESET);
|
||||
outb(CMOS_DATA, mpbiosreason);
|
||||
}
|
||||
#endif
|
||||
|
||||
int
|
||||
acpi_sleep_machdep(struct acpi_softc *sc, int state)
|
||||
{
|
||||
ACPI_STATUS status;
|
||||
struct pcb *pcb;
|
||||
|
||||
if (sc->acpi_wakeaddr == 0ul)
|
||||
return (-1); /* couldn't alloc wake memory */
|
||||
|
||||
#ifdef SMP
|
||||
suspcpus = all_cpus;
|
||||
CPU_CLR(PCPU_GET(cpuid), &suspcpus);
|
||||
#endif
|
||||
|
||||
if (acpi_resume_beep != 0)
|
||||
timer_spkr_acquire();
|
||||
|
||||
AcpiSetFirmwareWakingVector(sc->acpi_wakephys, 0);
|
||||
|
||||
intr_suspend();
|
||||
|
||||
pcb = &susppcbs[0]->sp_pcb;
|
||||
if (savectx(pcb)) {
|
||||
npxsuspend(susppcbs[0]->sp_fpususpend);
|
||||
#ifdef SMP
|
||||
if (!CPU_EMPTY(&suspcpus) && suspend_cpus(suspcpus) == 0) {
|
||||
device_printf(sc->acpi_dev, "Failed to suspend APs\n");
|
||||
return (0); /* couldn't sleep */
|
||||
}
|
||||
#endif
|
||||
|
||||
WAKECODE_FIXUP(resume_beep, uint8_t, (acpi_resume_beep != 0));
|
||||
WAKECODE_FIXUP(reset_video, uint8_t, (acpi_reset_video != 0));
|
||||
|
||||
if ((amd_feature & AMDID_NX) != 0)
|
||||
WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER));
|
||||
WAKECODE_FIXUP(wakeup_cr4, register_t, pcb->pcb_cr4);
|
||||
WAKECODE_FIXUP(wakeup_pcb, struct pcb *, pcb);
|
||||
WAKECODE_FIXUP(wakeup_gdt, uint16_t, pcb->pcb_gdt.rd_limit);
|
||||
WAKECODE_FIXUP(wakeup_gdt + 2, uint64_t, pcb->pcb_gdt.rd_base);
|
||||
|
||||
/*
|
||||
* Map some low memory with virt == phys for ACPI wakecode
|
||||
* to use to jump to high memory after enabling paging. This
|
||||
* is the same as for similar jump in locore, except the
|
||||
* jump is a single instruction, and we know its address
|
||||
* more precisely so only need a single PTD, and we have to
|
||||
* be careful to use the kernel map (PTD[0] is for curthread
|
||||
* which may be a user thread in deprecated APIs).
|
||||
*/
|
||||
pmap_remap_lowptdi(true);
|
||||
|
||||
/* Call ACPICA to enter the desired sleep state */
|
||||
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
|
||||
status = AcpiEnterSleepStateS4bios();
|
||||
else
|
||||
status = AcpiEnterSleepState(state);
|
||||
if (ACPI_FAILURE(status)) {
|
||||
device_printf(sc->acpi_dev,
|
||||
"AcpiEnterSleepState failed - %s\n",
|
||||
AcpiFormatException(status));
|
||||
return (0); /* couldn't sleep */
|
||||
}
|
||||
|
||||
if (acpi_susp_bounce)
|
||||
resumectx(pcb);
|
||||
|
||||
for (;;)
|
||||
ia32_pause();
|
||||
} else {
|
||||
/*
|
||||
* Re-initialize console hardware as soon as possibe.
|
||||
* No console output (e.g. printf) is allowed before
|
||||
* this point.
|
||||
*/
|
||||
cnresume();
|
||||
npxresume(susppcbs[0]->sp_fpususpend);
|
||||
}
|
||||
|
||||
return (1); /* wakeup successfully */
|
||||
}
|
||||
|
||||
int
|
||||
acpi_wakeup_machdep(struct acpi_softc *sc, int state, int sleep_result,
|
||||
int intr_enabled)
|
||||
{
|
||||
|
||||
if (sleep_result == -1)
|
||||
return (sleep_result);
|
||||
|
||||
if (!intr_enabled) {
|
||||
/* Wakeup MD procedures in interrupt disabled context */
|
||||
if (sleep_result == 1) {
|
||||
ucode_reload();
|
||||
pmap_init_pat();
|
||||
initializecpu();
|
||||
PCPU_SET(switchtime, 0);
|
||||
PCPU_SET(switchticks, ticks);
|
||||
#ifdef DEV_APIC
|
||||
lapic_xapic_mode();
|
||||
#endif
|
||||
#ifdef SMP
|
||||
if (!CPU_EMPTY(&suspcpus))
|
||||
acpi_wakeup_cpus(sc);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifdef SMP
|
||||
if (!CPU_EMPTY(&suspcpus))
|
||||
resume_cpus(suspcpus);
|
||||
#endif
|
||||
mca_resume();
|
||||
intr_resume(/*suspend_cancelled*/false);
|
||||
|
||||
AcpiSetFirmwareWakingVector(0, 0);
|
||||
} else {
|
||||
/* Wakeup MD procedures in interrupt enabled context */
|
||||
if (sleep_result == 1 && mem_range_softc.mr_op != NULL &&
|
||||
mem_range_softc.mr_op->reinit != NULL)
|
||||
mem_range_softc.mr_op->reinit(&mem_range_softc);
|
||||
}
|
||||
|
||||
return (sleep_result);
|
||||
}
|
||||
|
||||
static void *
|
||||
acpi_alloc_wakeup_handler(void *wakepages[ACPI_WAKEPAGES])
|
||||
{
|
||||
int i;
|
||||
|
||||
memset(wakepages, 0, ACPI_WAKEPAGES * sizeof(*wakepages));
|
||||
|
||||
/*
|
||||
* Specify the region for our wakeup code. We want it in the low 1 MB
|
||||
* region, excluding real mode IVT (0-0x3ff), BDA (0x400-0x4ff), EBDA
|
||||
* (less than 128KB, below 0xa0000, must be excluded by SMAP and DSDT),
|
||||
* and ROM area (0xa0000 and above). The temporary page tables must be
|
||||
* page-aligned.
|
||||
*/
|
||||
for (i = 0; i < ACPI_WAKEPAGES; i++) {
|
||||
wakepages[i] = contigmalloc(PAGE_SIZE, M_DEVBUF,
|
||||
M_NOWAIT | M_EXEC, 0x500, 0xa0000, PAGE_SIZE, 0ul);
|
||||
if (wakepages[i] == NULL) {
|
||||
printf("%s: can't alloc wake memory\n", __func__);
|
||||
goto freepages;
|
||||
}
|
||||
}
|
||||
if (EVENTHANDLER_REGISTER(power_resume, acpi_stop_beep, NULL,
|
||||
EVENTHANDLER_PRI_LAST) == NULL) {
|
||||
printf("%s: can't register event handler\n", __func__);
|
||||
goto freepages;
|
||||
}
|
||||
susppcbs = malloc(mp_ncpus * sizeof(*susppcbs), M_DEVBUF, M_WAITOK);
|
||||
for (i = 0; i < mp_ncpus; i++) {
|
||||
susppcbs[i] = malloc(sizeof(**susppcbs), M_DEVBUF, M_WAITOK);
|
||||
susppcbs[i]->sp_fpususpend = alloc_fpusave(M_WAITOK);
|
||||
}
|
||||
|
||||
return (wakepages);
|
||||
|
||||
freepages:
|
||||
for (i = 0; i < ACPI_WAKEPAGES; i++)
|
||||
if (wakepages[i] != NULL)
|
||||
contigfree(wakepages[i], PAGE_SIZE, M_DEVBUF);
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
void
|
||||
acpi_install_wakeup_handler(struct acpi_softc *sc)
|
||||
{
|
||||
static void *wakeaddr;
|
||||
void *wakepages[ACPI_WAKEPAGES];
|
||||
|
||||
if (wakeaddr != NULL)
|
||||
return;
|
||||
|
||||
if (acpi_alloc_wakeup_handler(wakepages) == NULL)
|
||||
return;
|
||||
|
||||
wakeaddr = wakepages[0];
|
||||
sc->acpi_wakeaddr = (vm_offset_t)wakeaddr;
|
||||
sc->acpi_wakephys = vtophys(wakeaddr);
|
||||
|
||||
bcopy(wakecode, (void *)sc->acpi_wakeaddr, sizeof(wakecode));
|
||||
|
||||
/* Patch GDT base address, ljmp targets. */
|
||||
WAKECODE_FIXUP((bootgdtdesc + 2), uint32_t,
|
||||
sc->acpi_wakephys + bootgdt);
|
||||
WAKECODE_FIXUP((wakeup_sw32 + 2), uint32_t,
|
||||
sc->acpi_wakephys + wakeup_32);
|
||||
|
||||
/* Save pointers to some global data. */
|
||||
WAKECODE_FIXUP(wakeup_ret, void *, resumectx);
|
||||
WAKECODE_FIXUP(wakeup_cr3, register_t, pmap_get_kcr3());
|
||||
|
||||
if (bootverbose)
|
||||
device_printf(sc->acpi_dev, "wakeup code va %#jx pa %#jx\n",
|
||||
(uintmax_t)sc->acpi_wakeaddr, (uintmax_t)sc->acpi_wakephys);
|
||||
}
|
Loading…
Reference in New Issue
Block a user