b85f295840
o cpu_idle_hook is expected to be called with interrupts
disabled and re-enables interrupts on return.
o sync with x86: don't idle when the CPU has runnable tasks
o have callers of ia64_call_pal_static() disable interrupts
and re-enable interrupts.
o add, but compile-out, support for idle mode. This will be
enabled at some later time, after proper testing.
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*-
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* Copyright (c) 2001 Doug Rabson
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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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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <machine/md_var.h>
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#include <machine/pal.h>
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#include <contrib/dev/acpica/include/acpi.h>
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#include <contrib/dev/acpica/include/actables.h>
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#include <dev/acpica/acpivar.h>
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int
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acpi_machdep_init(device_t dev)
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{
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struct acpi_softc *sc;
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sc = device_get_softc(dev);
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acpi_install_wakeup_handler(sc);
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return (0);
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}
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int
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acpi_machdep_quirks(int *quirks)
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{
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return (0);
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}
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void
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acpi_cpu_c1()
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{
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#ifdef INVARIANTS
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register_t ie;
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ie = intr_disable();
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KASSERT(ie == 0, ("%s called with interrupts enabled\n", __func__));
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#endif
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ia64_call_pal_static(PAL_HALT_LIGHT, 0, 0, 0);
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ia64_enable_intr();
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}
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void *
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acpi_find_table(const char *sig)
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{
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ACPI_PHYSICAL_ADDRESS rsdp_ptr;
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ACPI_TABLE_RSDP *rsdp;
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ACPI_TABLE_XSDT *xsdt;
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ACPI_TABLE_HEADER *table;
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UINT64 addr;
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u_int i, count;
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if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
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return (NULL);
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rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
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xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
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count = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
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xsdt->TableOffsetEntry;
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for (i = 0; i < count; i++) {
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addr = xsdt->TableOffsetEntry[i];
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table = (ACPI_TABLE_HEADER *)IA64_PHYS_TO_RR7(addr);
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if (strncmp(table->Signature, sig, ACPI_NAME_SIZE) != 0)
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continue;
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if (ACPI_FAILURE(AcpiTbChecksum((void *)table, table->Length)))
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continue;
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return (table);
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}
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return (NULL);
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}
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