int
acpi_sleep_machdep(struct acpi_softc *sc, int state)
{
ACPI_STATUS status;
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(WAKECODE_PADDR(sc));
intr_suspend();
if (savectx(susppcbs[0])) {
fpususpend(suspfpusave[0]);
#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));
WAKECODE_FIXUP(wakeup_pcb, struct pcb *, susppcbs[0]);
WAKECODE_FIXUP(wakeup_fpusave, void *, suspfpusave[0]);
WAKECODE_FIXUP(wakeup_gdt, uint16_t,
susppcbs[0]->pcb_gdt.rd_limit);
WAKECODE_FIXUP(wakeup_gdt + 2, uint64_t,
susppcbs[0]->pcb_gdt.rd_base);
WAKECODE_FIXUP(wakeup_cpu, int, 0);
/* Call ACPICA to enter the desired sleep state */
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
status = AcpiEnterSleepStateS4bios();
else
status = AcpiEnterSleepState(state);
if (status != AE_OK) {
device_printf(sc->acpi_dev,
"AcpiEnterSleepState failed - %s\n",
AcpiFormatException(status));
return (0); /* couldn't sleep */
}
for (;;)
ia32_pause();
}
return (1); /* wakeup successfully */
}
void
cpu_reset()
{
#ifdef SMP
cpuset_t map;
u_int cnt;
if (smp_started) {
map = all_cpus;
CPU_CLR(PCPU_GET(cpuid), &map);
CPU_NAND(&map, &stopped_cpus);
if (!CPU_EMPTY(&map)) {
printf("cpu_reset: Stopping other CPUs\n");
stop_cpus(map);
}
if (PCPU_GET(cpuid) != 0) {
cpu_reset_proxyid = PCPU_GET(cpuid);
cpustop_restartfunc = cpu_reset_proxy;
cpu_reset_proxy_active = 0;
printf("cpu_reset: Restarting BSP\n");
/* Restart CPU #0. */
CPU_SETOF(0, &started_cpus);
wmb();
cnt = 0;
while (cpu_reset_proxy_active == 0 && cnt < 10000000) {
ia32_pause();
cnt++; /* Wait for BSP to announce restart */
}
if (cpu_reset_proxy_active == 0)
printf("cpu_reset: Failed to restart BSP\n");
enable_intr();
cpu_reset_proxy_active = 2;
while (1)
ia32_pause();
/* NOTREACHED */
}
DELAY(1000000);
}
#endif
cpu_reset_real();
/* NOTREACHED */
}
static void
cpu_reset_proxy()
{
cpuset_t tcrp;
cpu_reset_proxy_active = 1;
while (cpu_reset_proxy_active == 1)
ia32_pause(); /* Wait for other cpu to see that we've started */
CPU_SETOF(cpu_reset_proxyid, &tcrp);
stop_cpus(tcrp);
printf("cpu_reset_proxy: Stopped CPU %d\n", cpu_reset_proxyid);
DELAY(1000000);
cpu_reset_real();
}
static void
smp_targeted_tlb_shootdown(cpuset_t mask, u_int vector, vm_offset_t addr1, vm_offset_t addr2)
{
int cpu, ncpu, othercpus;
struct _call_data data;
othercpus = mp_ncpus - 1;
if (CPU_ISFULLSET(&mask)) {
if (othercpus < 1)
return;
} else {
CPU_CLR(PCPU_GET(cpuid), &mask);
if (CPU_EMPTY(&mask))
return;
}
if (!(read_eflags() & PSL_I))
panic("%s: interrupts disabled", __func__);
mtx_lock_spin(&smp_ipi_mtx);
KASSERT(call_data == NULL, ("call_data isn't null?!"));
call_data = &data;
call_data->func_id = vector;
call_data->arg1 = addr1;
call_data->arg2 = addr2;
atomic_store_rel_int(&smp_tlb_wait, 0);
if (CPU_ISFULLSET(&mask)) {
ncpu = othercpus;
ipi_all_but_self(vector);
} else {
ncpu = 0;
while ((cpu = cpusetobj_ffs(&mask)) != 0) {
cpu--;
CPU_CLR(cpu, &mask);
CTR3(KTR_SMP, "%s: cpu: %d ipi: %x", __func__, cpu,
vector);
ipi_send_cpu(cpu, vector);
ncpu++;
}
}
while (smp_tlb_wait < ncpu)
ia32_pause();
call_data = NULL;
mtx_unlock_spin(&smp_ipi_mtx);
}
/*
* Flush the TLB on all other CPU's
*/
static void
smp_tlb_shootdown(u_int vector, vm_offset_t addr1, vm_offset_t addr2)
{
u_int ncpu;
struct _call_data data;
ncpu = mp_ncpus - 1; /* does not shootdown self */
if (ncpu < 1)
return; /* no other cpus */
if (!(read_eflags() & PSL_I))
panic("%s: interrupts disabled", __func__);
mtx_lock_spin(&smp_ipi_mtx);
KASSERT(call_data == NULL, ("call_data isn't null?!"));
call_data = &data;
call_data->func_id = vector;
call_data->arg1 = addr1;
call_data->arg2 = addr2;
atomic_store_rel_int(&smp_tlb_wait, 0);
ipi_all_but_self(vector);
while (smp_tlb_wait < ncpu)
ia32_pause();
call_data = NULL;
mtx_unlock_spin(&smp_ipi_mtx);
}
/*
* Handle an IPI_STOP by saving our current context and spinning until we
* are resumed.
*/
void
cpustop_handler(void)
{
int cpu;
cpu = PCPU_GET(cpuid);
savectx(&stoppcbs[cpu]);
/* Indicate that we are stopped */
CPU_SET_ATOMIC(cpu, &stopped_cpus);
/* Wait for restart */
while (!CPU_ISSET(cpu, &started_cpus))
ia32_pause();
CPU_CLR_ATOMIC(cpu, &started_cpus);
CPU_CLR_ATOMIC(cpu, &stopped_cpus);
if (cpu == 0 && cpustop_restartfunc != NULL) {
cpustop_restartfunc();
cpustop_restartfunc = NULL;
}
}
/*
* AP CPU's call this to initialize themselves.
*/
void
init_secondary(void)
{
vm_offset_t addr;
u_int cpuid;
int gsel_tss;
/* bootAP is set in start_ap() to our ID. */
PCPU_SET(currentldt, _default_ldt);
gsel_tss = GSEL(GPROC0_SEL, SEL_KPL);
#if 0
gdt[bootAP * NGDT + GPROC0_SEL].sd.sd_type = SDT_SYS386TSS;
#endif
PCPU_SET(common_tss.tss_esp0, 0); /* not used until after switch */
PCPU_SET(common_tss.tss_ss0, GSEL(GDATA_SEL, SEL_KPL));
PCPU_SET(common_tss.tss_ioopt, (sizeof (struct i386tss)) << 16);
#if 0
PCPU_SET(tss_gdt, &gdt[bootAP * NGDT + GPROC0_SEL].sd);
PCPU_SET(common_tssd, *PCPU_GET(tss_gdt));
#endif
PCPU_SET(fsgs_gdt, &gdt[GUFS_SEL].sd);
/*
* Set to a known state:
* Set by mpboot.s: CR0_PG, CR0_PE
* Set by cpu_setregs: CR0_NE, CR0_MP, CR0_TS, CR0_WP, CR0_AM
*/
/*
* signal our startup to the BSP.
*/
mp_naps++;
/* Spin until the BSP releases the AP's. */
while (!aps_ready)
ia32_pause();
/* BSP may have changed PTD while we were waiting */
invltlb();
for (addr = 0; addr < NKPT * NBPDR - 1; addr += PAGE_SIZE)
invlpg(addr);
/* set up FPU state on the AP */
npxinit();
#if 0
/* set up SSE registers */
enable_sse();
#endif
#if 0 && defined(PAE)
/* Enable the PTE no-execute bit. */
if ((amd_feature & AMDID_NX) != 0) {
uint64_t msr;
msr = rdmsr(MSR_EFER) | EFER_NXE;
wrmsr(MSR_EFER, msr);
}
#endif
#if 0
/* A quick check from sanity claus */
if (PCPU_GET(apic_id) != lapic_id()) {
printf("SMP: cpuid = %d\n", PCPU_GET(cpuid));
printf("SMP: actual apic_id = %d\n", lapic_id());
printf("SMP: correct apic_id = %d\n", PCPU_GET(apic_id));
panic("cpuid mismatch! boom!!");
}
#endif
/* Initialize curthread. */
KASSERT(PCPU_GET(idlethread) != NULL, ("no idle thread"));
PCPU_SET(curthread, PCPU_GET(idlethread));
mtx_lock_spin(&ap_boot_mtx);
#if 0
/* Init local apic for irq's */
lapic_setup(1);
#endif
smp_cpus++;
cpuid = PCPU_GET(cpuid);
CTR1(KTR_SMP, "SMP: AP CPU #%d Launched", cpuid);
printf("SMP: AP CPU #%d Launched!\n", cpuid);
/* Determine if we are a logical CPU. */
if (logical_cpus > 1 && PCPU_GET(apic_id) % logical_cpus != 0)
CPU_SET(cpuid, &logical_cpus_mask);
/* Determine if we are a hyperthread. */
if (hyperthreading_cpus > 1 &&
PCPU_GET(apic_id) % hyperthreading_cpus != 0)
CPU_SET(cpuid, &hyperthreading_cpus_mask);
#if 0
if (bootverbose)
lapic_dump("AP");
#endif
if (smp_cpus == mp_ncpus) {
/* enable IPI's, tlb shootdown, freezes etc */
atomic_store_rel_int(&smp_started, 1);
smp_active = 1; /* historic */
}
mtx_unlock_spin(&ap_boot_mtx);
/* wait until all the AP's are up */
while (smp_started == 0)
ia32_pause();
PCPU_SET(curthread, PCPU_GET(idlethread));
/* Start per-CPU event timers. */
cpu_initclocks_ap();
/* enter the scheduler */
sched_throw(NULL);
panic("scheduler returned us to %s", __func__);
/* NOTREACHED */
}
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)) {
#ifdef __amd64__
fpususpend(susppcbs[0]->sp_fpususpend);
#elif defined(DEV_NPX)
npxsuspend(susppcbs[0]->sp_fpususpend);
#endif
#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));
#ifndef __amd64__
WAKECODE_FIXUP(wakeup_cr4, register_t, pcb->pcb_cr4);
#endif
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);
/* 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 */
}
for (;;)
ia32_pause();
} else {
#ifdef __amd64__
fpuresume(susppcbs[0]->sp_fpususpend);
#elif defined(DEV_NPX)
npxresume(susppcbs[0]->sp_fpususpend);
#endif
}
return (1); /* wakeup successfully */
}
int
acpi_sleep_machdep(struct acpi_softc *sc, int state)
{
struct savefpu *stopfpu;
#ifdef SMP
cpumask_t wakeup_cpus;
#endif
register_t cr3, rf;
ACPI_STATUS status;
int ret;
ret = -1;
if (sc->acpi_wakeaddr == 0ul)
return (ret);
#ifdef SMP
wakeup_cpus = PCPU_GET(other_cpus);
#endif
AcpiSetFirmwareWakingVector(WAKECODE_PADDR(sc));
rf = intr_disable();
intr_suspend();
/*
* Temporarily switch to the kernel pmap because it provides
* an identity mapping (setup at boot) for the low physical
* memory region containing the wakeup code.
*/
cr3 = rcr3();
load_cr3(KPML4phys);
stopfpu = &stopxpcbs[0].xpcb_pcb.pcb_save;
if (acpi_savecpu(&stopxpcbs[0])) {
fpugetregs(curthread, stopfpu);
#ifdef SMP
if (wakeup_cpus != 0 && suspend_cpus(wakeup_cpus) == 0) {
device_printf(sc->acpi_dev,
"Failed to suspend APs: CPU mask = 0x%jx\n",
(uintmax_t)(wakeup_cpus & ~stopped_cpus));
goto out;
}
#endif
WAKECODE_FIXUP(resume_beep, uint8_t, (acpi_resume_beep != 0));
WAKECODE_FIXUP(reset_video, uint8_t, (acpi_reset_video != 0));
WAKECODE_FIXUP(wakeup_xpcb, struct xpcb *, &stopxpcbs[0]);
WAKECODE_FIXUP(wakeup_gdt, uint16_t,
stopxpcbs[0].xpcb_gdt.rd_limit);
WAKECODE_FIXUP(wakeup_gdt + 2, uint64_t,
stopxpcbs[0].xpcb_gdt.rd_base);
WAKECODE_FIXUP(wakeup_cpu, int, 0);
/* Call ACPICA to enter the desired sleep state */
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
status = AcpiEnterSleepStateS4bios();
else
status = AcpiEnterSleepState(state);
if (status != AE_OK) {
device_printf(sc->acpi_dev,
"AcpiEnterSleepState failed - %s\n",
AcpiFormatException(status));
goto out;
}
for (;;)
ia32_pause();
} else {
int
acpi_sleep_machdep(struct acpi_softc *sc, int state)
{
ACPI_STATUS status;
struct pmap *pm;
int ret;
uint32_t cr3;
u_long ef;
ret = -1;
if (sc->acpi_wakeaddr == 0)
return (ret);
AcpiSetFirmwareWakingVector(sc->acpi_wakephys);
ef = intr_disable();
intr_suspend();
/*
* Temporarily switch to the kernel pmap because it provides an
* identity mapping (setup at boot) for the low physical memory
* region containing the wakeup code.
*/
pm = kernel_pmap;
cr3 = rcr3();
#ifdef PAE
load_cr3(vtophys(pm->pm_pdpt));
#else
load_cr3(vtophys(pm->pm_pdir));
#endif
ret_addr = 0;
if (acpi_savecpu()) {
/* Execute Sleep */
p_gdt = (struct region_descriptor *)
(sc->acpi_wakeaddr + physical_gdt);
p_gdt->rd_limit = saved_gdt.rd_limit;
p_gdt->rd_base = vtophys(saved_gdt.rd_base);
WAKECODE_FIXUP(physical_esp, uint32_t, vtophys(r_esp));
WAKECODE_FIXUP(previous_cr0, uint32_t, r_cr0);
WAKECODE_FIXUP(previous_cr2, uint32_t, r_cr2);
WAKECODE_FIXUP(previous_cr3, uint32_t, r_cr3);
WAKECODE_FIXUP(previous_cr4, uint32_t, r_cr4);
WAKECODE_FIXUP(resume_beep, uint32_t, acpi_resume_beep);
WAKECODE_FIXUP(reset_video, uint32_t, acpi_reset_video);
WAKECODE_FIXUP(previous_tr, uint16_t, r_tr);
WAKECODE_BCOPY(previous_gdt, struct region_descriptor, saved_gdt);
WAKECODE_FIXUP(previous_ldt, uint16_t, saved_ldt);
WAKECODE_BCOPY(previous_idt, struct region_descriptor, saved_idt);
WAKECODE_FIXUP(where_to_recover, void *, acpi_restorecpu);
WAKECODE_FIXUP(previous_ds, uint16_t, r_ds);
WAKECODE_FIXUP(previous_es, uint16_t, r_es);
WAKECODE_FIXUP(previous_fs, uint16_t, r_fs);
WAKECODE_FIXUP(previous_gs, uint16_t, r_gs);
WAKECODE_FIXUP(previous_ss, uint16_t, r_ss);
if (bootverbose)
acpi_printcpu();
/* Call ACPICA to enter the desired sleep state */
if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
status = AcpiEnterSleepStateS4bios();
else
status = AcpiEnterSleepState(state, acpi_sleep_flags);
if (status != AE_OK) {
device_printf(sc->acpi_dev,
"AcpiEnterSleepState failed - %s\n",
AcpiFormatException(status));
goto out;
}
for (;;)
ia32_pause();
} else {
pmap_init_pat();
PCPU_SET(switchtime, 0);
PCPU_SET(switchticks, ticks);
if (bootverbose) {
acpi_savecpu();
acpi_printcpu();
}
ret = 0;
}
out:
load_cr3(cr3);
mca_resume();
intr_resume();
intr_restore(ef);
if (ret == 0 && mem_range_softc.mr_op != NULL &&
mem_range_softc.mr_op->reinit != NULL)
mem_range_softc.mr_op->reinit(&mem_range_softc);
/* If we beeped, turn it off after a delay. */
if (acpi_resume_beep)
timeout(acpi_stop_beep, NULL, 3 * hz);
return (ret);
}
int
acpi_sleep_machdep(struct acpi_softc *sc, int state)
{
ACPI_STATUS status;
struct pcb *pcb;
#ifdef __amd64__
struct pcpu *pc;
int i;
#endif
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)) {
#ifdef __amd64__
fpususpend(susppcbs[0]->sp_fpususpend);
#else
npxsuspend(susppcbs[0]->sp_fpususpend);
#endif
#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
#ifdef __amd64__
hw_ibrs_active = 0;
hw_ssb_active = 0;
cpu_stdext_feature3 = 0;
CPU_FOREACH(i) {
pc = pcpu_find(i);
pc->pc_ibpb_set = 0;
}
#endif
WAKECODE_FIXUP(resume_beep, uint8_t, (acpi_resume_beep != 0));
WAKECODE_FIXUP(reset_video, uint8_t, (acpi_reset_video != 0));
#ifdef __amd64__
WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER) &
~(EFER_LMA));
#else
if ((amd_feature & AMDID_NX) != 0)
WAKECODE_FIXUP(wakeup_efer, uint64_t, rdmsr(MSR_EFER));
WAKECODE_FIXUP(wakeup_cr4, register_t, pcb->pcb_cr4);
#endif
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);
#ifdef __i386__
/*
* 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);
#endif
/* 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 {
