Remove unused real-mode APM setup support. We've been using the vm86
mode initialiser for a while now, and it's looking happy.
This commit is contained in:
Mike Smith
parent
2b51223f01
commit
a9063682da
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=49185
@ -15,7 +15,7 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.91 1999/07/22 14:45:22 iwasaki Exp $
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* $Id: apm.c,v 1.92 1999/07/28 19:37:32 msmith Exp $
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*/
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#include "opt_devfs.h"
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@ -44,7 +44,6 @@
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <sys/syslog.h>
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#include <i386/apm/apm_setup.h>
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#include <machine/psl.h>
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#include <machine/vm86.h>
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@ -57,6 +56,18 @@ static int apm_display __P((int newstate));
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static int apm_int __P((u_long *eax, u_long *ebx, u_long *ecx, u_long *edx));
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static void apm_resume __P((void));
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extern int apm_bios_call __P((struct apm_bios_arg *)); /* in apm_setup.s */
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static u_long apm_version;
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static u_long apm_cs_entry;
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static u_short apm_cs32_base;
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static u_short apm_cs16_base;
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static u_short apm_ds_base;
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static u_short apm_cs32_limit;
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static u_short apm_cs16_limit;
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static u_short apm_ds_limit;
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static u_short apm_flags;
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#define APM_NEVENTS 16
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#define APM_NPMEV 13
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@ -1,27 +0,0 @@
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/*
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* Copyright (C) 1994 by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
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*
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* This software may be used, modified, copied, distributed, and sold,
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* in both source and binary form provided that the above copyright and
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* these terms are retained. Under no circumstances is the author
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* responsible for the proper functioning of this software, nor does
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* the author assume any responsibility for damages incurred with its
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* use.
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.h,v 1.8 1997/03/29 11:06:38 phk Exp $
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*/
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extern u_long apm_version;
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extern u_long apm_cs_entry;
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extern u_short apm_cs32_base;
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extern u_short apm_cs16_base;
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extern u_short apm_ds_base;
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extern u_short apm_cs32_limit;
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extern u_short apm_cs16_limit;
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extern u_short apm_ds_limit;
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extern u_short apm_flags;
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extern u_short kernelbase;
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int apm_bios_call __P((struct apm_bios_arg *));
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@ -11,13 +11,11 @@
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.s,v 1.12 1997/11/04 18:12:45 nate Exp $
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* $Id: apm_setup.s,v 1.13 1998/06/03 01:59:34 msmith Exp $
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*
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* This file now contains no setup code.
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*/
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#include "apm.h"
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#if NAPM > 0
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#define ASSEMBLER
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#include "assym.s" /* system definitions */
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#include <machine/asmacros.h> /* miscellaneous asm macros */
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@ -27,160 +25,7 @@
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.file "apm_setup.s"
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.data
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_apm_init_image:
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.globl _apm_init_image
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1:
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#include "i386/apm/apm_init/apm_init.inc"
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2:
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_apm_init_image_size:
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.globl _apm_init_image_size
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.long 2b - 1b
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_apm_version:
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.globl _apm_version
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.long 0
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_apm_cs_entry:
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.globl _apm_cs_entry
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.long 0
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_apm_cs16_base:
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.globl _apm_cs16_base
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.word 0
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_apm_cs32_base:
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.globl _apm_cs32_base
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.word 0
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_apm_ds_base:
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.globl _apm_ds_base
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.word 0
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_apm_cs32_limit:
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.globl _apm_cs32_limit
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.word 0
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_apm_cs16_limit:
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.globl _apm_cs16_limit
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.word 0
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_apm_ds_limit:
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.globl _apm_ds_limit
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.word 0
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_apm_flags:
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.globl _apm_flags
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.word 0
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.globl _apm_current_gdt_pdesc /* current GDT pseudo desc. */
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_apm_current_gdt_pdesc:
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.word 0, 0, 0
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.globl _bootstrap_gdt
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_bootstrap_gdt:
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.space SIZEOF_GDT*BOOTSTRAP_GDT_NUM
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.text
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_apm_setup:
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.globl _apm_setup
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/*
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* Setup APM BIOS:
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*
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* APM BIOS initialization should be done from real mode or V86 mode.
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*
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* (by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>)
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*/
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/*
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* Don't trust the value of %fs and %gs (some AT-compatible BIOS
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* implementations leave junk values in these segment registers
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* on bootstrap)
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*/
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xorl %eax, %eax /* null selector */
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movw %ax, %fs
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movw %ax, %gs
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/*
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* Copy APM initializer under 1MB boundary:
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*
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* APM initializer program must switch the CPU to real mode.
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* But FreeBSD kernel runs above 1MB boundary. So we must
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* copy the initializer code to conventional memory.
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*/
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movl PADDR(_apm_init_image_size), %ecx /* size */
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lea PADDR(_apm_init_image), %esi /* source */
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movl $ APM_OURADDR, %edi /* destination */
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cld
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rep
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movsb
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/* get GDT base */
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sgdt PADDR(_apm_current_gdt_pdesc)
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/* copy GDT to _bootstrap_gdt */
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xorl %ecx, %ecx
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movw PADDR(_apm_current_gdt_pdesc), %cx
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movl PADDR(_apm_current_gdt_pdesc + 2), %esi
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lea PADDR(_bootstrap_gdt), %edi
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cld
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rep
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movsb
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/* setup GDT pseudo descriptor */
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movw $(SIZEOF_GDT*BOOTSTRAP_GDT_NUM), %ax
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movw %ax, PADDR(_apm_current_gdt_pdesc)
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leal PADDR(_bootstrap_gdt), %eax
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movl %eax, PADDR(_apm_current_gdt_pdesc + 2)
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/* load new GDTR */
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lgdt PADDR(_apm_current_gdt_pdesc)
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/* setup GDT for APM initializer */
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lea PADDR(_bootstrap_gdt), %ecx
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movl $(APM_OURADDR), %eax /* use %ax for 15..0 */
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movl %eax, %ebx
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shrl $16, %ebx /* use %bl for 23..16 */
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/* use %bh for 31..24 */
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#define APM_SETUP_GDT(index, attrib) \
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movl $(index), %si ; \
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lea 0(%ecx,%esi,8), %edx ; \
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movw $0xffff, (%edx) ; \
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movw %ax, 2(%edx) ; \
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movb %bl, 4(%edx) ; \
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movw $(attrib), 5(%edx) ; \
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movb %bh, 7(%edx)
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APM_SETUP_GDT(APM_INIT_CS_INDEX , CS32_ATTRIB)
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APM_SETUP_GDT(APM_INIT_DS_INDEX , DS32_ATTRIB)
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APM_SETUP_GDT(APM_INIT_CS16_INDEX, CS16_ATTRIB)
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APM_SETUP_GDT(APM_INIT_DS16_INDEX, DS16_ATTRIB)
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/*
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* Call the initializer:
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*
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* direct intersegment call to conventional memory code
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*/
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.byte 0x9a /* actually, lcall $APM_INIT_CS_SEL, $0 */
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.long 0
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.word APM_INIT_CS_SEL
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movl %eax, PADDR(_apm_version)
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movl %ebx, PADDR(_apm_cs_entry)
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movw %cx, PADDR(_apm_cs16_base)
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shrl $16, %ecx
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movw %cx, PADDR(_apm_cs32_base)
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movw %dx, PADDR(_apm_ds_base)
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movw %si, PADDR(_apm_cs32_limit)
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shrl $16, %esi
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movw %si, PADDR(_apm_ds_limit)
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movw %di, PADDR(_apm_flags)
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ret
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.text
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.align 2
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.globl _apm_bios_call
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_apm_bios_call:
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@ -213,4 +58,3 @@ _apm_bios_call:
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popl %esi
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popl %ebp
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ret
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#endif NAPM > 0
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@ -15,7 +15,7 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.91 1999/07/22 14:45:22 iwasaki Exp $
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* $Id: apm.c,v 1.92 1999/07/28 19:37:32 msmith Exp $
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*/
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#include "opt_devfs.h"
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@ -44,7 +44,6 @@
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <sys/syslog.h>
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#include <i386/apm/apm_setup.h>
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#include <machine/psl.h>
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#include <machine/vm86.h>
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@ -57,6 +56,18 @@ static int apm_display __P((int newstate));
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static int apm_int __P((u_long *eax, u_long *ebx, u_long *ecx, u_long *edx));
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static void apm_resume __P((void));
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extern int apm_bios_call __P((struct apm_bios_arg *)); /* in apm_setup.s */
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static u_long apm_version;
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static u_long apm_cs_entry;
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static u_short apm_cs32_base;
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static u_short apm_cs16_base;
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static u_short apm_ds_base;
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static u_short apm_cs32_limit;
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static u_short apm_cs16_limit;
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static u_short apm_ds_limit;
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static u_short apm_flags;
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#define APM_NEVENTS 16
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#define APM_NPMEV 13
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@ -1,27 +0,0 @@
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/*
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* Copyright (C) 1994 by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>
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*
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* This software may be used, modified, copied, distributed, and sold,
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* in both source and binary form provided that the above copyright and
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* these terms are retained. Under no circumstances is the author
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* responsible for the proper functioning of this software, nor does
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* the author assume any responsibility for damages incurred with its
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* use.
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.h,v 1.8 1997/03/29 11:06:38 phk Exp $
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*/
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extern u_long apm_version;
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extern u_long apm_cs_entry;
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extern u_short apm_cs32_base;
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extern u_short apm_cs16_base;
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extern u_short apm_ds_base;
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extern u_short apm_cs32_limit;
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extern u_short apm_cs16_limit;
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extern u_short apm_ds_limit;
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extern u_short apm_flags;
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extern u_short kernelbase;
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int apm_bios_call __P((struct apm_bios_arg *));
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@ -11,13 +11,11 @@
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.s,v 1.12 1997/11/04 18:12:45 nate Exp $
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* $Id: apm_setup.s,v 1.13 1998/06/03 01:59:34 msmith Exp $
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*
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* This file now contains no setup code.
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*/
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#include "apm.h"
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#if NAPM > 0
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#define ASSEMBLER
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#include "assym.s" /* system definitions */
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#include <machine/asmacros.h> /* miscellaneous asm macros */
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@ -27,160 +25,7 @@
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.file "apm_setup.s"
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.data
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_apm_init_image:
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.globl _apm_init_image
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1:
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#include "i386/apm/apm_init/apm_init.inc"
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2:
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_apm_init_image_size:
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.globl _apm_init_image_size
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.long 2b - 1b
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_apm_version:
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.globl _apm_version
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.long 0
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_apm_cs_entry:
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.globl _apm_cs_entry
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.long 0
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_apm_cs16_base:
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.globl _apm_cs16_base
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.word 0
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_apm_cs32_base:
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.globl _apm_cs32_base
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.word 0
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_apm_ds_base:
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.globl _apm_ds_base
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.word 0
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_apm_cs32_limit:
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.globl _apm_cs32_limit
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.word 0
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_apm_cs16_limit:
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.globl _apm_cs16_limit
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.word 0
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_apm_ds_limit:
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.globl _apm_ds_limit
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.word 0
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_apm_flags:
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.globl _apm_flags
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.word 0
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.globl _apm_current_gdt_pdesc /* current GDT pseudo desc. */
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_apm_current_gdt_pdesc:
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.word 0, 0, 0
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.globl _bootstrap_gdt
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_bootstrap_gdt:
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.space SIZEOF_GDT*BOOTSTRAP_GDT_NUM
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.text
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_apm_setup:
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.globl _apm_setup
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/*
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* Setup APM BIOS:
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*
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* APM BIOS initialization should be done from real mode or V86 mode.
|
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*
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* (by HOSOKAWA, Tatsumi <hosokawa@jp.FreeBSD.org>)
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*/
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/*
|
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* Don't trust the value of %fs and %gs (some AT-compatible BIOS
|
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* implementations leave junk values in these segment registers
|
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* on bootstrap)
|
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*/
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xorl %eax, %eax /* null selector */
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movw %ax, %fs
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movw %ax, %gs
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/*
|
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* Copy APM initializer under 1MB boundary:
|
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*
|
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* APM initializer program must switch the CPU to real mode.
|
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* But FreeBSD kernel runs above 1MB boundary. So we must
|
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* copy the initializer code to conventional memory.
|
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*/
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movl PADDR(_apm_init_image_size), %ecx /* size */
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lea PADDR(_apm_init_image), %esi /* source */
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movl $ APM_OURADDR, %edi /* destination */
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cld
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rep
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movsb
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/* get GDT base */
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sgdt PADDR(_apm_current_gdt_pdesc)
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/* copy GDT to _bootstrap_gdt */
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xorl %ecx, %ecx
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movw PADDR(_apm_current_gdt_pdesc), %cx
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movl PADDR(_apm_current_gdt_pdesc + 2), %esi
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lea PADDR(_bootstrap_gdt), %edi
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cld
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rep
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movsb
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/* setup GDT pseudo descriptor */
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movw $(SIZEOF_GDT*BOOTSTRAP_GDT_NUM), %ax
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movw %ax, PADDR(_apm_current_gdt_pdesc)
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leal PADDR(_bootstrap_gdt), %eax
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movl %eax, PADDR(_apm_current_gdt_pdesc + 2)
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/* load new GDTR */
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lgdt PADDR(_apm_current_gdt_pdesc)
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/* setup GDT for APM initializer */
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lea PADDR(_bootstrap_gdt), %ecx
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movl $(APM_OURADDR), %eax /* use %ax for 15..0 */
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movl %eax, %ebx
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shrl $16, %ebx /* use %bl for 23..16 */
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/* use %bh for 31..24 */
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#define APM_SETUP_GDT(index, attrib) \
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movl $(index), %si ; \
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lea 0(%ecx,%esi,8), %edx ; \
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movw $0xffff, (%edx) ; \
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movw %ax, 2(%edx) ; \
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movb %bl, 4(%edx) ; \
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movw $(attrib), 5(%edx) ; \
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movb %bh, 7(%edx)
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APM_SETUP_GDT(APM_INIT_CS_INDEX , CS32_ATTRIB)
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APM_SETUP_GDT(APM_INIT_DS_INDEX , DS32_ATTRIB)
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APM_SETUP_GDT(APM_INIT_CS16_INDEX, CS16_ATTRIB)
|
||||
APM_SETUP_GDT(APM_INIT_DS16_INDEX, DS16_ATTRIB)
|
||||
|
||||
/*
|
||||
* Call the initializer:
|
||||
*
|
||||
* direct intersegment call to conventional memory code
|
||||
*/
|
||||
.byte 0x9a /* actually, lcall $APM_INIT_CS_SEL, $0 */
|
||||
.long 0
|
||||
.word APM_INIT_CS_SEL
|
||||
|
||||
movl %eax, PADDR(_apm_version)
|
||||
movl %ebx, PADDR(_apm_cs_entry)
|
||||
movw %cx, PADDR(_apm_cs16_base)
|
||||
shrl $16, %ecx
|
||||
movw %cx, PADDR(_apm_cs32_base)
|
||||
movw %dx, PADDR(_apm_ds_base)
|
||||
movw %si, PADDR(_apm_cs32_limit)
|
||||
shrl $16, %esi
|
||||
movw %si, PADDR(_apm_ds_limit)
|
||||
movw %di, PADDR(_apm_flags)
|
||||
|
||||
ret
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.globl _apm_bios_call
|
||||
_apm_bios_call:
|
||||
@ -213,4 +58,3 @@ _apm_bios_call:
|
||||
popl %esi
|
||||
popl %ebp
|
||||
ret
|
||||
#endif NAPM > 0
|
||||
|
||||
Loading…
Reference in New Issue
Block a user