ae4b76c8d3
in interrupt controllers in struct pic, and try to keep as much common code as possible. At the lowest (asm) level, this is done with CPP macros. The main structure is now struct intrsource, describing an established interrupt line, of any kind (soft/hard local apic/legacy apic/IO apic). For quick masking, there may be a maximum of 32 sources per CPU. Sources can be assigned to any CPU in the MP case, though currently they all go to the boot CPU.
382 lines
9.8 KiB
C
382 lines
9.8 KiB
C
/* $NetBSD: acpi_wakeup.c,v 1.5 2002/11/22 15:23:35 fvdl Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Takuya SHIOZAKI.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: acpi_wakeup.c,v 1.5 2002/11/22 15:23:35 fvdl Exp $");
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/*-
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* Copyright (c) 2001 Takanori Watanabe <takawata@jp.freebsd.org>
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* Copyright (c) 2001 Mitsuru IWASAKI <iwasaki@jp.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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* FreeBSD: src/sys/i386/acpica/acpi_wakeup.c,v 1.9 2002/01/10 03:26:46 wes Exp
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <machine/bus.h>
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#include <sys/proc.h>
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#include <uvm/uvm_extern.h>
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#include <uvm/uvm_page.h>
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#include <machine/i8259.h>
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#include "acpi.h"
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#include <dev/acpi/acpica.h>
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#include <dev/acpi/acpivar.h>
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#define ACPI_MACHDEP_PRIVATE
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#include <machine/acpi_machdep.h>
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#include "acpi_wakecode.h"
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paddr_t phys_wakeup = 0;
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u_int32_t
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acpi_md_get_npages_of_wakecode(void)
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{
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return (atop(round_page(sizeof(wakecode))));
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}
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void
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acpi_md_install_wakecode(paddr_t pa)
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{
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bcopy(wakecode, (caddr_t)pa, sizeof(wakecode));
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phys_wakeup = pa;
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printf("acpi: wakecode is installed at 0x%lX, size=%u\n",
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pa, sizeof(wakecode));
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}
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/*
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* S4 sleep using S4BIOS support, from FreeBSD.
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*
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* FreeBSD: src/sys/dev/acpica/acpica_support.c,v 1.4 2002/03/12 09:45:17 dfr Exp
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*/
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static ACPI_STATUS
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enter_s4_with_bios(void)
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{
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ACPI_OBJECT_LIST ArgList;
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ACPI_OBJECT Arg;
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u_long ef;
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UINT32 ret;
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ACPI_STATUS status;
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/* run the _PTS and _GTS methods */
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ACPI_MEMSET(&ArgList, 0, sizeof(ArgList));
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ArgList.Count = 1;
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ArgList.Pointer = &Arg;
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ACPI_MEMSET(&Arg, 0, sizeof(Arg));
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Arg.Type = ACPI_TYPE_INTEGER;
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Arg.Integer.Value = ACPI_STATE_S4;
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AcpiEvaluateObject(NULL, "\\_PTS", &ArgList, NULL);
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AcpiEvaluateObject(NULL, "\\_GTS", &ArgList, NULL);
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/* clear wake status */
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AcpiSetRegister(ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_LOCK);
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ef = read_eflags();
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disable_intr();
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AcpiHwDisableNonWakeupGpes();
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/* flush caches */
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ACPI_FLUSH_CPU_CACHE();
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/*
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* write the value to command port and wait until we enter sleep state
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*/
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do {
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AcpiOsStall(1000000);
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AcpiOsWritePort(AcpiGbl_FADT->SmiCmd,
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AcpiGbl_FADT->S4BiosReq, 8);
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status = AcpiGetRegister(ACPI_BITREG_WAKE_STATUS,
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&ret, ACPI_MTX_LOCK);
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if (ACPI_FAILURE(status))
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break;
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} while (!ret);
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AcpiHwEnableNonWakeupGpes();
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write_eflags(ef);
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return (AE_OK);
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}
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static u_int16_t r_ldt;
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static u_int16_t r_cs, r_ds, r_es, r_fs, r_gs, r_ss, r_tr;
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static u_int32_t r_eax, r_ebx, r_ecx, r_edx, r_ebp, r_esi, r_edi,
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r_efl, r_cr0, r_cr2, r_cr3, r_cr4, r_esp;
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static u_int32_t ret_addr;
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static struct region_descriptor r_idt, r_gdt;
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/* XXX shut gcc up */
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extern int acpi_savecpu(void);
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extern int acpi_restorecpu(void);
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static __inline void
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clear_reg(void)
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{
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r_ldt = 0;
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r_cs = r_ds = r_es = r_fs = r_gs = r_ss = r_tr = 0;
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r_eax = r_ebx = r_ecx = r_edx = r_ebp = r_esi = r_edi = 0;
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r_efl = r_cr0 = r_cr2 = r_cr3 = r_cr4 = r_esp = 0;
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memset(&r_idt, 0, sizeof(r_idt));
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memset(&r_gdt, 0, sizeof(r_gdt));
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}
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__asm__("
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.text
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.p2align 2, 0x90
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.type acpi_restorecpu, @function
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acpi_restorecpu:
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.align 4
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movl r_eax,%eax
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movl r_ebx,%ebx
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movl r_ecx,%ecx
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movl r_edx,%edx
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movl r_ebp,%ebp
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movl r_esi,%esi
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movl r_edi,%edi
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movl r_esp,%esp
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pushl r_efl
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popfl
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pushl ret_addr
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xorl %eax,%eax
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ret
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.text
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.p2align 2, 0x90
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.type acpi_savecpu, @function
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acpi_savecpu:
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movw %cs,r_cs
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movw %ds,r_ds
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movw %es,r_es
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movw %fs,r_fs
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movw %gs,r_gs
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movw %ss,r_ss
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movl %eax,r_eax
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movl %ebx,r_ebx
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movl %ecx,r_ecx
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movl %edx,r_edx
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movl %ebp,r_ebp
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movl %esi,r_esi
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movl %edi,r_edi
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movl %cr0,%eax
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movl %eax,r_cr0
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movl %cr2,%eax
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movl %eax,r_cr2
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movl %cr3,%eax
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movl %eax,r_cr3
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movl %cr4,%eax
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movl %eax,r_cr4
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pushfl
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popl r_efl
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movl %esp,r_esp
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sgdt r_gdt
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sidt r_idt
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sldt r_ldt
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str r_tr
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movl (%esp),%eax
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movl %eax,ret_addr
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movl $1,%eax
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ret
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");
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#ifdef ACPI_PRINT_REG
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static void
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acpi_printcpu(void)
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{
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printf("======== acpi_printcpu() debug dump ========\n");
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printf("gdt[%04x:%08x] idt[%04x:%08x] ldt[%04x] tr[%04x] efl[%08x]\n",
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r_gdt.rd_limit, r_gdt.rd_base, r_idt.rd_limit, r_idt.rd_base,
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r_ldt, r_tr, r_efl);
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printf("eax[%08x] ebx[%08x] ecx[%08x] edx[%08x]\n",
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r_eax, r_ebx, r_ecx, r_edx);
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printf("esi[%08x] edi[%08x] ebp[%08x] esp[%08x]\n",
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r_esi, r_edi, r_ebp, r_esp);
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printf("cr0[%08x] cr2[%08x] cr3[%08x] cr4[%08x]\n",
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r_cr0, r_cr2, r_cr3, r_cr4);
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printf("cs[%04x] ds[%04x] es[%04x] fs[%04x] gs[%04x] ss[%04x]\n",
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r_cs, r_ds, r_es, r_fs, r_gs, r_ss);
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}
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#endif
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int
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acpi_md_sleep(int state)
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{
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#define WAKECODE_FIXUP(offset, type, val) do { \
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type *addr; \
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addr = (type *)(phys_wakeup + offset); \
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*addr = val; \
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} while (0)
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#define WAKECODE_BCOPY(offset, type, val) do { \
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void **addr; \
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addr = (void **)(phys_wakeup + offset); \
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bcopy(&(val), addr, sizeof(type)); \
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} while (0)
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ACPI_STATUS status;
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int ret = 0;
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u_long ef;
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struct region_descriptor *p_gdt;
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if (!phys_wakeup) {
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printf("acpi: can't sleep since wakecode is not installed.\n");
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return (-1);
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}
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AcpiSetFirmwareWakingVector(phys_wakeup);
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clear_reg();
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ret_addr = 0;
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ef = read_eflags();
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disable_intr();
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if (acpi_savecpu()) {
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/* Execute Sleep */
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p_gdt = (struct region_descriptor *)(phys_wakeup+physical_gdt);
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p_gdt->rd_limit = r_gdt.rd_limit;
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p_gdt->rd_base = vtophys(r_gdt.rd_base);
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WAKECODE_FIXUP(previous_cr0, u_int32_t, r_cr0);
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WAKECODE_FIXUP(previous_cr2, u_int32_t, r_cr2);
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WAKECODE_FIXUP(previous_cr3, u_int32_t, r_cr3);
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WAKECODE_FIXUP(previous_cr4, u_int32_t, r_cr4);
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WAKECODE_FIXUP(previous_tr, u_int16_t, r_tr);
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WAKECODE_BCOPY(previous_gdt, struct region_descriptor, r_gdt);
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WAKECODE_FIXUP(previous_ldt, u_int16_t, r_ldt);
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WAKECODE_BCOPY(previous_idt, struct region_descriptor, r_idt);
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WAKECODE_FIXUP(where_to_recover, void *, acpi_restorecpu);
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WAKECODE_FIXUP(previous_ds, u_int16_t, r_ds);
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WAKECODE_FIXUP(previous_es, u_int16_t, r_es);
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WAKECODE_FIXUP(previous_fs, u_int16_t, r_fs);
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WAKECODE_FIXUP(previous_gs, u_int16_t, r_gs);
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WAKECODE_FIXUP(previous_ss, u_int16_t, r_ss);
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#ifdef ACPI_PRINT_REG
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acpi_printcpu();
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#endif
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ACPI_FLUSH_CPU_CACHE();
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if (state == ACPI_STATE_S4 && AcpiGbl_FACS->S4Bios_f) {
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status = enter_s4_with_bios();
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} else {
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status = AcpiEnterSleepState(state);
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}
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if (status != AE_OK) {
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printf("acpi: AcpiEnterSleepState failed - %s\n",
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AcpiFormatException(status));
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ret = -1;
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goto out;
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}
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for (;;) ;
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} else {
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/* Execute Wakeup */
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i8259_reinit();
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#if NIOAPIC > 0
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ioapic_enable();
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#endif
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/*
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* XXX must the local APIC be re-inited?
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*/
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initrtclock();
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inittodr(time.tv_sec);
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#ifdef ACPI_PRINT_REG
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acpi_savecpu();
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acpi_printcpu();
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#endif
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}
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out:
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write_eflags(ef);
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AcpiUtReleaseMutex(ACPI_MTX_HARDWARE);
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return (ret);
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#undef WAKECODE_FIXUP
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#undef WAKECODE_BCOPY
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}
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