From e8d08eb1b59bf6dda44fffe63cce1250d87a8b56 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:17:05 +0200 Subject: x86_64: move kernel/acpi Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86_64/kernel/acpi/Makefile | 5 - arch/x86_64/kernel/acpi/Makefile_64 | 9 - arch/x86_64/kernel/acpi/sleep_64.c | 120 ---------- arch/x86_64/kernel/acpi/wakeup_64.S | 456 ------------------------------------ 4 files changed, 590 deletions(-) delete mode 100644 arch/x86_64/kernel/acpi/Makefile delete mode 100644 arch/x86_64/kernel/acpi/Makefile_64 delete mode 100644 arch/x86_64/kernel/acpi/sleep_64.c delete mode 100644 arch/x86_64/kernel/acpi/wakeup_64.S (limited to 'arch/x86_64/kernel/acpi') diff --git a/arch/x86_64/kernel/acpi/Makefile b/arch/x86_64/kernel/acpi/Makefile deleted file mode 100644 index dd4eb7cef2b..00000000000 --- a/arch/x86_64/kernel/acpi/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -ifeq ($(CONFIG_X86_32),y) -include ${srctree}/arch/x86/kernel/acpi/Makefile_32 -else -include ${srctree}/arch/x86_64/kernel/acpi/Makefile_64 -endif diff --git a/arch/x86_64/kernel/acpi/Makefile_64 b/arch/x86_64/kernel/acpi/Makefile_64 deleted file mode 100644 index fc377c87e0b..00000000000 --- a/arch/x86_64/kernel/acpi/Makefile_64 +++ /dev/null @@ -1,9 +0,0 @@ -obj-y := boot.o -boot-y := ../../../x86/kernel/acpi/boot.o -obj-$(CONFIG_ACPI_SLEEP) += sleep_64.o wakeup_64.o - -ifneq ($(CONFIG_ACPI_PROCESSOR),) -obj-y += processor.o -processor-y := ../../../x86/kernel/acpi/processor.o ../../../x86/kernel/acpi/cstate.o -endif - diff --git a/arch/x86_64/kernel/acpi/sleep_64.c b/arch/x86_64/kernel/acpi/sleep_64.c deleted file mode 100644 index 79475d23707..00000000000 --- a/arch/x86_64/kernel/acpi/sleep_64.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - * acpi.c - Architecture-Specific Low-Level ACPI Support - * - * Copyright (C) 2001, 2002 Paul Diefenbaugh - * Copyright (C) 2001 Jun Nakajima - * Copyright (C) 2001 Patrick Mochel - * Copyright (C) 2002 Andi Kleen, SuSE Labs (x86-64 port) - * Copyright (C) 2003 Pavel Machek, SuSE Labs - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* -------------------------------------------------------------------------- - Low-Level Sleep Support - -------------------------------------------------------------------------- */ - -/* address in low memory of the wakeup routine. */ -unsigned long acpi_wakeup_address = 0; -unsigned long acpi_realmode_flags; -extern char wakeup_start, wakeup_end; - -extern unsigned long acpi_copy_wakeup_routine(unsigned long); - -/** - * acpi_save_state_mem - save kernel state - * - * Create an identity mapped page table and copy the wakeup routine to - * low memory. - */ -int acpi_save_state_mem(void) -{ - memcpy((void *)acpi_wakeup_address, &wakeup_start, - &wakeup_end - &wakeup_start); - acpi_copy_wakeup_routine(acpi_wakeup_address); - - return 0; -} - -/* - * acpi_restore_state - */ -void acpi_restore_state_mem(void) -{ -} - -/** - * acpi_reserve_bootmem - do _very_ early ACPI initialisation - * - * We allocate a page in low memory for the wakeup - * routine for when we come back from a sleep state. The - * runtime allocator allows specification of <16M pages, but not - * <1M pages. - */ -void __init acpi_reserve_bootmem(void) -{ - acpi_wakeup_address = (unsigned long)alloc_bootmem_low(PAGE_SIZE*2); - if ((&wakeup_end - &wakeup_start) > (PAGE_SIZE*2)) - printk(KERN_CRIT - "ACPI: Wakeup code way too big, will crash on attempt" - " to suspend\n"); -} - -static int __init acpi_sleep_setup(char *str) -{ - while ((str != NULL) && (*str != '\0')) { - if (strncmp(str, "s3_bios", 7) == 0) - acpi_realmode_flags |= 1; - if (strncmp(str, "s3_mode", 7) == 0) - acpi_realmode_flags |= 2; - if (strncmp(str, "s3_beep", 7) == 0) - acpi_realmode_flags |= 4; - str = strchr(str, ','); - if (str != NULL) - str += strspn(str, ", \t"); - } - return 1; -} - -__setup("acpi_sleep=", acpi_sleep_setup); - -void acpi_pci_link_exit(void) -{ -} diff --git a/arch/x86_64/kernel/acpi/wakeup_64.S b/arch/x86_64/kernel/acpi/wakeup_64.S deleted file mode 100644 index 8b4357e1efe..00000000000 --- a/arch/x86_64/kernel/acpi/wakeup_64.S +++ /dev/null @@ -1,456 +0,0 @@ -.text -#include -#include -#include -#include -#include - -# Copyright 2003 Pavel Machek , distribute under GPLv2 -# -# wakeup_code runs in real mode, and at unknown address (determined at run-time). -# Therefore it must only use relative jumps/calls. -# -# Do we need to deal with A20? It is okay: ACPI specs says A20 must be enabled -# -# If physical address of wakeup_code is 0x12345, BIOS should call us with -# cs = 0x1234, eip = 0x05 -# - -#define BEEP \ - inb $97, %al; \ - outb %al, $0x80; \ - movb $3, %al; \ - outb %al, $97; \ - outb %al, $0x80; \ - movb $-74, %al; \ - outb %al, $67; \ - outb %al, $0x80; \ - movb $-119, %al; \ - outb %al, $66; \ - outb %al, $0x80; \ - movb $15, %al; \ - outb %al, $66; - - -ALIGN - .align 16 -ENTRY(wakeup_start) -wakeup_code: - wakeup_code_start = . - .code16 - -# Running in *copy* of this code, somewhere in low 1MB. - - movb $0xa1, %al ; outb %al, $0x80 - cli - cld - # setup data segment - movw %cs, %ax - movw %ax, %ds # Make ds:0 point to wakeup_start - movw %ax, %ss - - # Data segment must be set up before we can see whether to beep. - testl $4, realmode_flags - wakeup_code - jz 1f - BEEP -1: - - # Private stack is needed for ASUS board - mov $(wakeup_stack - wakeup_code), %sp - - pushl $0 # Kill any dangerous flags - popfl - - movl real_magic - wakeup_code, %eax - cmpl $0x12345678, %eax - jne bogus_real_magic - - call verify_cpu # Verify the cpu supports long - # mode - testl %eax, %eax - jnz no_longmode - - testl $1, realmode_flags - wakeup_code - jz 1f - lcall $0xc000,$3 - movw %cs, %ax - movw %ax, %ds # Bios might have played with that - movw %ax, %ss -1: - - testl $2, realmode_flags - wakeup_code - jz 1f - mov video_mode - wakeup_code, %ax - call mode_set -1: - - movw $0xb800, %ax - movw %ax,%fs - movw $0x0e00 + 'L', %fs:(0x10) - - movb $0xa2, %al ; outb %al, $0x80 - - mov %ds, %ax # Find 32bit wakeup_code addr - movzx %ax, %esi # (Convert %ds:gdt to a liner ptr) - shll $4, %esi - # Fix up the vectors - addl %esi, wakeup_32_vector - wakeup_code - addl %esi, wakeup_long64_vector - wakeup_code - addl %esi, gdt_48a + 2 - wakeup_code # Fixup the gdt pointer - - lidtl %ds:idt_48a - wakeup_code - lgdtl %ds:gdt_48a - wakeup_code # load gdt with whatever is - # appropriate - - movl $1, %eax # protected mode (PE) bit - lmsw %ax # This is it! - jmp 1f -1: - - ljmpl *(wakeup_32_vector - wakeup_code) - - .balign 4 -wakeup_32_vector: - .long wakeup_32 - wakeup_code - .word __KERNEL32_CS, 0 - - .code32 -wakeup_32: -# Running in this code, but at low address; paging is not yet turned on. - movb $0xa5, %al ; outb %al, $0x80 - - movl $__KERNEL_DS, %eax - movl %eax, %ds - - movw $0x0e00 + 'i', %ds:(0xb8012) - movb $0xa8, %al ; outb %al, $0x80; - - /* - * Prepare for entering 64bits mode - */ - - /* Enable PAE */ - xorl %eax, %eax - btsl $5, %eax - movl %eax, %cr4 - - /* Setup early boot stage 4 level pagetables */ - leal (wakeup_level4_pgt - wakeup_code)(%esi), %eax - movl %eax, %cr3 - - /* Check if nx is implemented */ - movl $0x80000001, %eax - cpuid - movl %edx,%edi - - /* Enable Long Mode */ - xorl %eax, %eax - btsl $_EFER_LME, %eax - - /* No Execute supported? */ - btl $20,%edi - jnc 1f - btsl $_EFER_NX, %eax - - /* Make changes effective */ -1: movl $MSR_EFER, %ecx - xorl %edx, %edx - wrmsr - - xorl %eax, %eax - btsl $31, %eax /* Enable paging and in turn activate Long Mode */ - btsl $0, %eax /* Enable protected mode */ - - /* Make changes effective */ - movl %eax, %cr0 - - /* At this point: - CR4.PAE must be 1 - CS.L must be 0 - CR3 must point to PML4 - Next instruction must be a branch - This must be on identity-mapped page - */ - /* - * At this point we're in long mode but in 32bit compatibility mode - * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn - * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we load - * the new gdt/idt that has __KERNEL_CS with CS.L = 1. - */ - - /* Finally jump in 64bit mode */ - ljmp *(wakeup_long64_vector - wakeup_code)(%esi) - - .balign 4 -wakeup_long64_vector: - .long wakeup_long64 - wakeup_code - .word __KERNEL_CS, 0 - -.code64 - - /* Hooray, we are in Long 64-bit mode (but still running in - * low memory) - */ -wakeup_long64: - /* - * We must switch to a new descriptor in kernel space for the GDT - * because soon the kernel won't have access anymore to the userspace - * addresses where we're currently running on. We have to do that here - * because in 32bit we couldn't load a 64bit linear address. - */ - lgdt cpu_gdt_descr - - movw $0x0e00 + 'n', %ds:(0xb8014) - movb $0xa9, %al ; outb %al, $0x80 - - movq saved_magic, %rax - movq $0x123456789abcdef0, %rdx - cmpq %rdx, %rax - jne bogus_64_magic - - movw $0x0e00 + 'u', %ds:(0xb8016) - - nop - nop - movw $__KERNEL_DS, %ax - movw %ax, %ss - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - movq saved_rsp, %rsp - - movw $0x0e00 + 'x', %ds:(0xb8018) - movq saved_rbx, %rbx - movq saved_rdi, %rdi - movq saved_rsi, %rsi - movq saved_rbp, %rbp - - movw $0x0e00 + '!', %ds:(0xb801a) - movq saved_rip, %rax - jmp *%rax - -.code32 - - .align 64 -gdta: - /* Its good to keep gdt in sync with one in trampoline.S */ - .word 0, 0, 0, 0 # dummy - /* ??? Why I need the accessed bit set in order for this to work? */ - .quad 0x00cf9b000000ffff # __KERNEL32_CS - .quad 0x00af9b000000ffff # __KERNEL_CS - .quad 0x00cf93000000ffff # __KERNEL_DS - -idt_48a: - .word 0 # idt limit = 0 - .word 0, 0 # idt base = 0L - -gdt_48a: - .word 0x800 # gdt limit=2048, - # 256 GDT entries - .long gdta - wakeup_code # gdt base (relocated in later) - -real_magic: .quad 0 -video_mode: .quad 0 -realmode_flags: .quad 0 - -.code16 -bogus_real_magic: - movb $0xba,%al ; outb %al,$0x80 - jmp bogus_real_magic - -.code64 -bogus_64_magic: - movb $0xb3,%al ; outb %al,$0x80 - jmp bogus_64_magic - -.code16 -no_longmode: - movb $0xbc,%al ; outb %al,$0x80 - jmp no_longmode - -#include "../verify_cpu_64.S" - -/* This code uses an extended set of video mode numbers. These include: - * Aliases for standard modes - * NORMAL_VGA (-1) - * EXTENDED_VGA (-2) - * ASK_VGA (-3) - * Video modes numbered by menu position -- NOT RECOMMENDED because of lack - * of compatibility when extending the table. These are between 0x00 and 0xff. - */ -#define VIDEO_FIRST_MENU 0x0000 - -/* Standard BIOS video modes (BIOS number + 0x0100) */ -#define VIDEO_FIRST_BIOS 0x0100 - -/* VESA BIOS video modes (VESA number + 0x0200) */ -#define VIDEO_FIRST_VESA 0x0200 - -/* Video7 special modes (BIOS number + 0x0900) */ -#define VIDEO_FIRST_V7 0x0900 - -# Setting of user mode (AX=mode ID) => CF=success - -# For now, we only handle VESA modes (0x0200..0x03ff). To handle other -# modes, we should probably compile in the video code from the boot -# directory. -.code16 -mode_set: - movw %ax, %bx - subb $VIDEO_FIRST_VESA>>8, %bh - cmpb $2, %bh - jb check_vesa - -setbad: - clc - ret - -check_vesa: - orw $0x4000, %bx # Use linear frame buffer - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz setbad # AH=0 if OK - - stc - ret - -wakeup_stack_begin: # Stack grows down - -.org 0xff0 -wakeup_stack: # Just below end of page - -.org 0x1000 -ENTRY(wakeup_level4_pgt) - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE - .fill 510,8,0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE - -ENTRY(wakeup_end) - -## -# acpi_copy_wakeup_routine -# -# Copy the above routine to low memory. -# -# Parameters: -# %rdi: place to copy wakeup routine to -# -# Returned address is location of code in low memory (past data and stack) -# - .code64 -ENTRY(acpi_copy_wakeup_routine) - pushq %rax - pushq %rdx - - movl saved_video_mode, %edx - movl %edx, video_mode - wakeup_start (,%rdi) - movl acpi_realmode_flags, %edx - movl %edx, realmode_flags - wakeup_start (,%rdi) - movq $0x12345678, real_magic - wakeup_start (,%rdi) - movq $0x123456789abcdef0, %rdx - movq %rdx, saved_magic - - movq saved_magic, %rax - movq $0x123456789abcdef0, %rdx - cmpq %rdx, %rax - jne bogus_64_magic - - # restore the regs we used - popq %rdx - popq %rax -ENTRY(do_suspend_lowlevel_s4bios) - ret - - .align 2 - .p2align 4,,15 -.globl do_suspend_lowlevel - .type do_suspend_lowlevel,@function -do_suspend_lowlevel: -.LFB5: - subq $8, %rsp - xorl %eax, %eax - call save_processor_state - - movq %rsp, saved_context_esp(%rip) - movq %rax, saved_context_eax(%rip) - movq %rbx, saved_context_ebx(%rip) - movq %rcx, saved_context_ecx(%rip) - movq %rdx, saved_context_edx(%rip) - movq %rbp, saved_context_ebp(%rip) - movq %rsi, saved_context_esi(%rip) - movq %rdi, saved_context_edi(%rip) - movq %r8, saved_context_r08(%rip) - movq %r9, saved_context_r09(%rip) - movq %r10, saved_context_r10(%rip) - movq %r11, saved_context_r11(%rip) - movq %r12, saved_context_r12(%rip) - movq %r13, saved_context_r13(%rip) - movq %r14, saved_context_r14(%rip) - movq %r15, saved_context_r15(%rip) - pushfq ; popq saved_context_eflags(%rip) - - movq $.L97, saved_rip(%rip) - - movq %rsp,saved_rsp - movq %rbp,saved_rbp - movq %rbx,saved_rbx - movq %rdi,saved_rdi - movq %rsi,saved_rsi - - addq $8, %rsp - movl $3, %edi - xorl %eax, %eax - jmp acpi_enter_sleep_state -.L97: - .p2align 4,,7 -.L99: - .align 4 - movl $24, %eax - movw %ax, %ds - movq saved_context+58(%rip), %rax - movq %rax, %cr4 - movq saved_context+50(%rip), %rax - movq %rax, %cr3 - movq saved_context+42(%rip), %rax - movq %rax, %cr2 - movq saved_context+34(%rip), %rax - movq %rax, %cr0 - pushq saved_context_eflags(%rip) ; popfq - movq saved_context_esp(%rip), %rsp - movq saved_context_ebp(%rip), %rbp - movq saved_context_eax(%rip), %rax - movq saved_context_ebx(%rip), %rbx - movq saved_context_ecx(%rip), %rcx - movq saved_context_edx(%rip), %rdx - movq saved_context_esi(%rip), %rsi - movq saved_context_edi(%rip), %rdi - movq saved_context_r08(%rip), %r8 - movq saved_context_r09(%rip), %r9 - movq saved_context_r10(%rip), %r10 - movq saved_context_r11(%rip), %r11 - movq saved_context_r12(%rip), %r12 - movq saved_context_r13(%rip), %r13 - movq saved_context_r14(%rip), %r14 - movq saved_context_r15(%rip), %r15 - - xorl %eax, %eax - addq $8, %rsp - jmp restore_processor_state -.LFE5: -.Lfe5: - .size do_suspend_lowlevel,.Lfe5-do_suspend_lowlevel - -.data -ALIGN -ENTRY(saved_rbp) .quad 0 -ENTRY(saved_rsi) .quad 0 -ENTRY(saved_rdi) .quad 0 -ENTRY(saved_rbx) .quad 0 - -ENTRY(saved_rip) .quad 0 -ENTRY(saved_rsp) .quad 0 - -ENTRY(saved_magic) .quad 0 -- cgit v1.2.3