diff options
Diffstat (limited to 'arch/i386/boot')
41 files changed, 0 insertions, 5802 deletions
diff --git a/arch/i386/boot/.gitignore b/arch/i386/boot/.gitignore deleted file mode 100644 index 495f20c085de..000000000000 --- a/arch/i386/boot/.gitignore +++ /dev/null @@ -1,3 +0,0 @@ -bootsect -bzImage -setup diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile deleted file mode 100644 index 08678a0a3d19..000000000000 --- a/arch/i386/boot/Makefile +++ /dev/null @@ -1,171 +0,0 @@ -# -# arch/i386/boot/Makefile -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1994 by Linus Torvalds -# - -# ROOT_DEV specifies the default root-device when making the image. -# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case -# the default of FLOPPY is used by 'build'. - -ROOT_DEV := CURRENT - -# If you want to preset the SVGA mode, uncomment the next line and -# set SVGA_MODE to whatever number you want. -# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. -# The number is the same as you would ordinarily press at bootup. - -SVGA_MODE := -DSVGA_MODE=NORMAL_VGA - -# If you want the RAM disk device, define this to be the size in blocks. - -#RAMDISK := -DRAMDISK=512 - -targets := vmlinux.bin setup.bin setup.elf zImage bzImage -subdir- := compressed - -setup-y += a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o -setup-y += header.o main.o mca.o memory.o pm.o pmjump.o -setup-y += printf.o string.o tty.o video.o version.o voyager.o - -# The link order of the video-*.o modules can matter. In particular, -# video-vga.o *must* be listed first, followed by video-vesa.o. -# Hardware-specific drivers should follow in the order they should be -# probed, and video-bios.o should typically be last. -setup-y += video-vga.o -setup-y += video-vesa.o -setup-y += video-bios.o - -hostprogs-y := tools/build - -HOSTCFLAGS_build.o := $(LINUXINCLUDE) - -# --------------------------------------------------------------------------- - -# How to compile the 16-bit code. Note we always compile for -march=i386, -# that way we can complain to the user if the CPU is insufficient. -cflags-i386 := -cflags-x86_64 := -m32 -CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ - $(cflags-$(ARCH)) \ - -Wall -Wstrict-prototypes \ - -march=i386 -mregparm=3 \ - -include $(srctree)/$(src)/code16gcc.h \ - -fno-strict-aliasing -fomit-frame-pointer \ - $(call cc-option, -ffreestanding) \ - $(call cc-option, -fno-toplevel-reorder,\ - $(call cc-option, -fno-unit-at-a-time)) \ - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) -AFLAGS := $(CFLAGS) -D__ASSEMBLY__ - -$(obj)/zImage: IMAGE_OFFSET := 0x1000 -$(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -$(obj)/bzImage: IMAGE_OFFSET := 0x100000 -$(obj)/bzImage: EXTRA_CFLAGS := -D__BIG_KERNEL__ -$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ -$(obj)/bzImage: BUILDFLAGS := -b - -quiet_cmd_image = BUILD $@ -cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \ - $(obj)/vmlinux.bin $(ROOT_DEV) > $@ - -$(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \ - $(obj)/vmlinux.bin $(obj)/tools/build FORCE - $(call if_changed,image) - @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' - -$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - -SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) - -LDFLAGS_setup.elf := -T -$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE - $(call if_changed,ld) - -OBJCOPYFLAGS_setup.bin := -O binary - -$(obj)/setup.bin: $(obj)/setup.elf FORCE - $(call if_changed,objcopy) - -$(obj)/compressed/vmlinux: FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ - -# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel -FDARGS = -# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel -FDINITRD = - -image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) - -$(obj)/mtools.conf: $(src)/mtools.conf.in - sed -e 's|@OBJ@|$(obj)|g' < $< > $@ - -# This requires write access to /dev/fd0 -zdisk: $(BOOTIMAGE) $(obj)/mtools.conf - MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync - syslinux /dev/fd0 ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync - -# These require being root or having syslinux 2.02 or higher installed -fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf - dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 - MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync - syslinux $(obj)/fdimage ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync - -fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf - dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 - MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync - syslinux $(obj)/fdimage ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync - -isoimage: $(BOOTIMAGE) - -rm -rf $(obj)/isoimage - mkdir $(obj)/isoimage - for i in lib lib64 share end ; do \ - if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ - cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ - break ; \ - fi ; \ - if [ $$i = end ] ; then exit 1 ; fi ; \ - done - cp $(BOOTIMAGE) $(obj)/isoimage/linux - echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ - fi - mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ - -no-emul-boot -boot-load-size 4 -boot-info-table \ - $(obj)/isoimage - rm -rf $(obj)/isoimage - -zlilo: $(BOOTIMAGE) - if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi - if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi - cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz - cp System.map $(INSTALL_PATH)/ - if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi - -install: - sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" diff --git a/arch/i386/boot/a20.c b/arch/i386/boot/a20.c deleted file mode 100644 index 31348d054fca..000000000000 --- a/arch/i386/boot/a20.c +++ /dev/null @@ -1,161 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/a20.c - * - * Enable A20 gate (return -1 on failure) - */ - -#include "boot.h" - -#define MAX_8042_LOOPS 100000 - -static int empty_8042(void) -{ - u8 status; - int loops = MAX_8042_LOOPS; - - while (loops--) { - io_delay(); - - status = inb(0x64); - if (status & 1) { - /* Read and discard input data */ - io_delay(); - (void)inb(0x60); - } else if (!(status & 2)) { - /* Buffers empty, finished! */ - return 0; - } - } - - return -1; -} - -/* Returns nonzero if the A20 line is enabled. The memory address - used as a test is the int $0x80 vector, which should be safe. */ - -#define A20_TEST_ADDR (4*0x80) -#define A20_TEST_SHORT 32 -#define A20_TEST_LONG 2097152 /* 2^21 */ - -static int a20_test(int loops) -{ - int ok = 0; - int saved, ctr; - - set_fs(0x0000); - set_gs(0xffff); - - saved = ctr = rdfs32(A20_TEST_ADDR); - - while (loops--) { - wrfs32(++ctr, A20_TEST_ADDR); - io_delay(); /* Serialize and make delay constant */ - ok = rdgs32(A20_TEST_ADDR+0x10) ^ ctr; - if (ok) - break; - } - - wrfs32(saved, A20_TEST_ADDR); - return ok; -} - -/* Quick test to see if A20 is already enabled */ -static int a20_test_short(void) -{ - return a20_test(A20_TEST_SHORT); -} - -/* Longer test that actually waits for A20 to come on line; this - is useful when dealing with the KBC or other slow external circuitry. */ -static int a20_test_long(void) -{ - return a20_test(A20_TEST_LONG); -} - -static void enable_a20_bios(void) -{ - asm volatile("pushfl; int $0x15; popfl" - : : "a" ((u16)0x2401)); -} - -static void enable_a20_kbc(void) -{ - empty_8042(); - - outb(0xd1, 0x64); /* Command write */ - empty_8042(); - - outb(0xdf, 0x60); /* A20 on */ - empty_8042(); -} - -static void enable_a20_fast(void) -{ - u8 port_a; - - port_a = inb(0x92); /* Configuration port A */ - port_a |= 0x02; /* Enable A20 */ - port_a &= ~0x01; /* Do not reset machine */ - outb(port_a, 0x92); -} - -/* - * Actual routine to enable A20; return 0 on ok, -1 on failure - */ - -#define A20_ENABLE_LOOPS 255 /* Number of times to try */ - -int enable_a20(void) -{ - int loops = A20_ENABLE_LOOPS; - -#if defined(CONFIG_X86_ELAN) - /* Elan croaks if we try to touch the KBC */ - enable_a20_fast(); - while (!a20_test_long()) - ; - return 0; -#elif defined(CONFIG_X86_VOYAGER) - /* On Voyager, a20_test() is unsafe? */ - enable_a20_kbc(); - return 0; -#else - while (loops--) { - /* First, check to see if A20 is already enabled - (legacy free, etc.) */ - if (a20_test_short()) - return 0; - - /* Next, try the BIOS (INT 0x15, AX=0x2401) */ - enable_a20_bios(); - if (a20_test_short()) - return 0; - - /* Try enabling A20 through the keyboard controller */ - empty_8042(); - if (a20_test_short()) - return 0; /* BIOS worked, but with delayed reaction */ - - enable_a20_kbc(); - if (a20_test_long()) - return 0; - - /* Finally, try enabling the "fast A20 gate" */ - enable_a20_fast(); - if (a20_test_long()) - return 0; - } - - return -1; -#endif -} diff --git a/arch/i386/boot/apm.c b/arch/i386/boot/apm.c deleted file mode 100644 index a34087c370c0..000000000000 --- a/arch/i386/boot/apm.c +++ /dev/null @@ -1,97 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * Original APM BIOS checking by Stephen Rothwell, May 1994 - * (sfr@canb.auug.org.au) - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/apm.c - * - * Get APM BIOS information - */ - -#include "boot.h" - -#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) - -int query_apm_bios(void) -{ - u16 ax, bx, cx, dx, di; - u32 ebx, esi; - u8 err; - - /* APM BIOS installation check */ - ax = 0x5300; - bx = cx = 0; - asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %0" - : "=d" (err), "+a" (ax), "+b" (bx), "+c" (cx) - : : "esi", "edi"); - - if (err) - return -1; /* No APM BIOS */ - - if (bx != 0x504d) /* "PM" signature */ - return -1; - - if (cx & 0x02) /* 32 bits supported? */ - return -1; - - /* Disconnect first, just in case */ - ax = 0x5304; - asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp" - : "+a" (ax) - : : "ebx", "ecx", "edx", "esi", "edi"); - - /* Paranoia */ - ebx = esi = 0; - cx = dx = di = 0; - - /* 32-bit connect */ - asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %6" - : "=a" (ax), "+b" (ebx), "+c" (cx), "+d" (dx), - "+S" (esi), "+D" (di), "=m" (err) - : "a" (0x5303)); - - boot_params.apm_bios_info.cseg = ax; - boot_params.apm_bios_info.offset = ebx; - boot_params.apm_bios_info.cseg_16 = cx; - boot_params.apm_bios_info.dseg = dx; - boot_params.apm_bios_info.cseg_len = (u16)esi; - boot_params.apm_bios_info.cseg_16_len = esi >> 16; - boot_params.apm_bios_info.dseg_len = di; - - if (err) - return -1; - - /* Redo the installation check as the 32-bit connect; - some BIOSes return different flags this way... */ - - ax = 0x5300; - bx = cx = 0; - asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %0" - : "=d" (err), "+a" (ax), "+b" (bx), "+c" (cx) - : : "esi", "edi"); - - if (err || bx != 0x504d) { - /* Failure with 32-bit connect, try to disconect and ignore */ - ax = 0x5304; - bx = 0; - asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp" - : "+a" (ax), "+b" (bx) - : : "ecx", "edx", "esi", "edi"); - return -1; - } - - boot_params.apm_bios_info.version = ax; - boot_params.apm_bios_info.flags = cx; - return 0; -} - -#endif diff --git a/arch/i386/boot/bitops.h b/arch/i386/boot/bitops.h deleted file mode 100644 index 8dcc8dc7db88..000000000000 --- a/arch/i386/boot/bitops.h +++ /dev/null @@ -1,45 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/bitops.h - * - * Very simple bitops for the boot code. - */ - -#ifndef BOOT_BITOPS_H -#define BOOT_BITOPS_H -#define _LINUX_BITOPS_H /* Inhibit inclusion of <linux/bitops.h> */ - -static inline int constant_test_bit(int nr, const void *addr) -{ - const u32 *p = (const u32 *)addr; - return ((1UL << (nr & 31)) & (p[nr >> 5])) != 0; -} -static inline int variable_test_bit(int nr, const void *addr) -{ - u8 v; - const u32 *p = (const u32 *)addr; - - asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); - return v; -} - -#define test_bit(nr,addr) \ -(__builtin_constant_p(nr) ? \ - constant_test_bit((nr),(addr)) : \ - variable_test_bit((nr),(addr))) - -static inline void set_bit(int nr, void *addr) -{ - asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); -} - -#endif /* BOOT_BITOPS_H */ diff --git a/arch/i386/boot/boot.h b/arch/i386/boot/boot.h deleted file mode 100644 index 0329c4fe4f88..000000000000 --- a/arch/i386/boot/boot.h +++ /dev/null @@ -1,296 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/boot.h - * - * Header file for the real-mode kernel code - */ - -#ifndef BOOT_BOOT_H -#define BOOT_BOOT_H - -#ifndef __ASSEMBLY__ - -#include <stdarg.h> -#include <linux/types.h> -#include <linux/edd.h> -#include <asm/boot.h> -#include <asm/bootparam.h> - -/* Useful macros */ -#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) - -extern struct setup_header hdr; -extern struct boot_params boot_params; - -/* Basic port I/O */ -static inline void outb(u8 v, u16 port) -{ - asm volatile("outb %0,%1" : : "a" (v), "dN" (port)); -} -static inline u8 inb(u16 port) -{ - u8 v; - asm volatile("inb %1,%0" : "=a" (v) : "dN" (port)); - return v; -} - -static inline void outw(u16 v, u16 port) -{ - asm volatile("outw %0,%1" : : "a" (v), "dN" (port)); -} -static inline u16 inw(u16 port) -{ - u16 v; - asm volatile("inw %1,%0" : "=a" (v) : "dN" (port)); - return v; -} - -static inline void outl(u32 v, u16 port) -{ - asm volatile("outl %0,%1" : : "a" (v), "dn" (port)); -} -static inline u32 inl(u32 port) -{ - u32 v; - asm volatile("inl %1,%0" : "=a" (v) : "dN" (port)); - return v; -} - -static inline void io_delay(void) -{ - const u16 DELAY_PORT = 0x80; - asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT)); -} - -/* These functions are used to reference data in other segments. */ - -static inline u16 ds(void) -{ - u16 seg; - asm("movw %%ds,%0" : "=rm" (seg)); - return seg; -} - -static inline void set_fs(u16 seg) -{ - asm volatile("movw %0,%%fs" : : "rm" (seg)); -} -static inline u16 fs(void) -{ - u16 seg; - asm("movw %%fs,%0" : "=rm" (seg)); - return seg; -} - -static inline void set_gs(u16 seg) -{ - asm volatile("movw %0,%%gs" : : "rm" (seg)); -} -static inline u16 gs(void) -{ - u16 seg; - asm("movw %%gs,%0" : "=rm" (seg)); - return seg; -} - -typedef unsigned int addr_t; - -static inline u8 rdfs8(addr_t addr) -{ - u8 v; - asm("movb %%fs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr)); - return v; -} -static inline u16 rdfs16(addr_t addr) -{ - u16 v; - asm("movw %%fs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); - return v; -} -static inline u32 rdfs32(addr_t addr) -{ - u32 v; - asm("movl %%fs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); - return v; -} - -static inline void wrfs8(u8 v, addr_t addr) -{ - asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "r" (v)); -} -static inline void wrfs16(u16 v, addr_t addr) -{ - asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "r" (v)); -} -static inline void wrfs32(u32 v, addr_t addr) -{ - asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "r" (v)); -} - -static inline u8 rdgs8(addr_t addr) -{ - u8 v; - asm("movb %%gs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr)); - return v; -} -static inline u16 rdgs16(addr_t addr) -{ - u16 v; - asm("movw %%gs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); - return v; -} -static inline u32 rdgs32(addr_t addr) -{ - u32 v; - asm("movl %%gs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); - return v; -} - -static inline void wrgs8(u8 v, addr_t addr) -{ - asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "r" (v)); -} -static inline void wrgs16(u16 v, addr_t addr) -{ - asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "r" (v)); -} -static inline void wrgs32(u32 v, addr_t addr) -{ - asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "r" (v)); -} - -/* Note: these only return true/false, not a signed return value! */ -static inline int memcmp(const void *s1, const void *s2, size_t len) -{ - u8 diff; - asm("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; -} - -static inline int memcmp_fs(const void *s1, addr_t s2, size_t len) -{ - u8 diff; - asm("fs; repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; -} -static inline int memcmp_gs(const void *s1, addr_t s2, size_t len) -{ - u8 diff; - asm("gs; repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; -} - -static inline int isdigit(int ch) -{ - return (ch >= '0') && (ch <= '9'); -} - -/* Heap -- available for dynamic lists. */ -#define STACK_SIZE 512 /* Minimum number of bytes for stack */ - -extern char _end[]; -extern char *HEAP; -extern char *heap_end; -#define RESET_HEAP() ((void *)( HEAP = _end )) -static inline char *__get_heap(size_t s, size_t a, size_t n) -{ - char *tmp; - - HEAP = (char *)(((size_t)HEAP+(a-1)) & ~(a-1)); - tmp = HEAP; - HEAP += s*n; - return tmp; -} -#define GET_HEAP(type, n) \ - ((type *)__get_heap(sizeof(type),__alignof__(type),(n))) - -static inline int heap_free(void) -{ - return heap_end-HEAP; -} - -/* copy.S */ - -void copy_to_fs(addr_t dst, void *src, size_t len); -void *copy_from_fs(void *dst, addr_t src, size_t len); -void copy_to_gs(addr_t dst, void *src, size_t len); -void *copy_from_gs(void *dst, addr_t src, size_t len); -void *memcpy(void *dst, void *src, size_t len); -void *memset(void *dst, int c, size_t len); - -#define memcpy(d,s,l) __builtin_memcpy(d,s,l) -#define memset(d,c,l) __builtin_memset(d,c,l) - -/* a20.c */ -int enable_a20(void); - -/* apm.c */ -int query_apm_bios(void); - -/* cmdline.c */ -int cmdline_find_option(const char *option, char *buffer, int bufsize); - -/* cpu.c, cpucheck.c */ -int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr); -int validate_cpu(void); - -/* edd.c */ -void query_edd(void); - -/* header.S */ -void __attribute__((noreturn)) die(void); - -/* mca.c */ -int query_mca(void); - -/* memory.c */ -int detect_memory(void); - -/* pm.c */ -void __attribute__((noreturn)) go_to_protected_mode(void); - -/* pmjump.S */ -void __attribute__((noreturn)) - protected_mode_jump(u32 entrypoint, u32 bootparams); - -/* printf.c */ -int sprintf(char *buf, const char *fmt, ...); -int vsprintf(char *buf, const char *fmt, va_list args); -int printf(const char *fmt, ...); - -/* string.c */ -int strcmp(const char *str1, const char *str2); -size_t strnlen(const char *s, size_t maxlen); -unsigned int atou(const char *s); - -/* tty.c */ -void puts(const char *); -void putchar(int); -int getchar(void); -void kbd_flush(void); -int getchar_timeout(void); - -/* video.c */ -void set_video(void); - -/* video-vesa.c */ -void vesa_store_edid(void); - -/* voyager.c */ -int query_voyager(void); - -#endif /* __ASSEMBLY__ */ - -#endif /* BOOT_BOOT_H */ diff --git a/arch/i386/boot/cmdline.c b/arch/i386/boot/cmdline.c deleted file mode 100644 index 34bb778c4357..000000000000 --- a/arch/i386/boot/cmdline.c +++ /dev/null @@ -1,97 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/cmdline.c - * - * Simple command-line parser for early boot. - */ - -#include "boot.h" - -static inline int myisspace(u8 c) -{ - return c <= ' '; /* Close enough approximation */ -} - -/* - * Find a non-boolean option, that is, "option=argument". In accordance - * with standard Linux practice, if this option is repeated, this returns - * the last instance on the command line. - * - * Returns the length of the argument (regardless of if it was - * truncated to fit in the buffer), or -1 on not found. - */ -int cmdline_find_option(const char *option, char *buffer, int bufsize) -{ - u32 cmdline_ptr = boot_params.hdr.cmd_line_ptr; - addr_t cptr; - char c; - int len = -1; - const char *opptr = NULL; - char *bufptr = buffer; - enum { - st_wordstart, /* Start of word/after whitespace */ - st_wordcmp, /* Comparing this word */ - st_wordskip, /* Miscompare, skip */ - st_bufcpy /* Copying this to buffer */ - } state = st_wordstart; - - if (!cmdline_ptr || cmdline_ptr >= 0x100000) - return -1; /* No command line, or inaccessible */ - - cptr = cmdline_ptr & 0xf; - set_fs(cmdline_ptr >> 4); - - while (cptr < 0x10000 && (c = rdfs8(cptr++))) { - switch (state) { - case st_wordstart: - if (myisspace(c)) - break; - - /* else */ - state = st_wordcmp; - opptr = option; - /* fall through */ - - case st_wordcmp: - if (c == '=' && !*opptr) { - len = 0; - bufptr = buffer; - state = st_bufcpy; - } else if (myisspace(c)) { - state = st_wordstart; - } else if (c != *opptr++) { - state = st_wordskip; - } - break; - - case st_wordskip: - if (myisspace(c)) - state = st_wordstart; - break; - - case st_bufcpy: - if (myisspace(c)) { - state = st_wordstart; - } else { - if (len < bufsize-1) - *bufptr++ = c; - len++; - } - break; - } - } - - if (bufsize) - *bufptr = '\0'; - - return len; -} diff --git a/arch/i386/boot/code16gcc.h b/arch/i386/boot/code16gcc.h deleted file mode 100644 index 3bd848093b9d..000000000000 --- a/arch/i386/boot/code16gcc.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * code16gcc.h - * - * This file is -include'd when compiling 16-bit C code. - * Note: this asm() needs to be emitted before gcc omits any code. - * Depending on gcc version, this requires -fno-unit-at-a-time or - * -fno-toplevel-reorder. - * - * Hopefully gcc will eventually have a real -m16 option so we can - * drop this hack long term. - */ - -#ifndef __ASSEMBLY__ -asm(".code16gcc"); -#endif diff --git a/arch/i386/boot/compressed/.gitignore b/arch/i386/boot/compressed/.gitignore deleted file mode 100644 index be0ed065249b..000000000000 --- a/arch/i386/boot/compressed/.gitignore +++ /dev/null @@ -1 +0,0 @@ -relocs diff --git a/arch/i386/boot/compressed/Makefile b/arch/i386/boot/compressed/Makefile deleted file mode 100644 index 189fa1dbefcc..000000000000 --- a/arch/i386/boot/compressed/Makefile +++ /dev/null @@ -1,50 +0,0 @@ -# -# linux/arch/i386/boot/compressed/Makefile -# -# create a compressed vmlinux image from the original vmlinux -# - -targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o \ - vmlinux.bin.all vmlinux.relocs -EXTRA_AFLAGS := -traditional - -LDFLAGS_vmlinux := -T -hostprogs-y := relocs - -CFLAGS := -m32 -D__KERNEL__ $(LINUX_INCLUDE) -O2 \ - -fno-strict-aliasing -fPIC \ - $(call cc-option,-ffreestanding) \ - $(call cc-option,-fno-stack-protector) -LDFLAGS := -m elf_i386 - -$(obj)/vmlinux: $(src)/vmlinux.lds $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE - $(call if_changed,ld) - @: - -$(obj)/vmlinux.bin: vmlinux FORCE - $(call if_changed,objcopy) - -quiet_cmd_relocs = RELOCS $@ - cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $< -$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE - $(call if_changed,relocs) - -vmlinux.bin.all-y := $(obj)/vmlinux.bin -vmlinux.bin.all-$(CONFIG_RELOCATABLE) += $(obj)/vmlinux.relocs -quiet_cmd_relocbin = BUILD $@ - cmd_relocbin = cat $(filter-out FORCE,$^) > $@ -$(obj)/vmlinux.bin.all: $(vmlinux.bin.all-y) FORCE - $(call if_changed,relocbin) - -ifdef CONFIG_RELOCATABLE -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin.all FORCE - $(call if_changed,gzip) -else -$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE - $(call if_changed,gzip) -endif - -LDFLAGS_piggy.o := -r --format binary --oformat elf32-i386 -T - -$(obj)/piggy.o: $(src)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE - $(call if_changed,ld) diff --git a/arch/i386/boot/compressed/head.S b/arch/i386/boot/compressed/head.S deleted file mode 100644 index f35ea2237522..000000000000 --- a/arch/i386/boot/compressed/head.S +++ /dev/null @@ -1,180 +0,0 @@ -/* - * linux/boot/head.S - * - * Copyright (C) 1991, 1992, 1993 Linus Torvalds - */ - -/* - * head.S contains the 32-bit startup code. - * - * NOTE!!! Startup happens at absolute address 0x00001000, which is also where - * the page directory will exist. The startup code will be overwritten by - * the page directory. [According to comments etc elsewhere on a compressed - * kernel it will end up at 0x1000 + 1Mb I hope so as I assume this. - AC] - * - * Page 0 is deliberately kept safe, since System Management Mode code in - * laptops may need to access the BIOS data stored there. This is also - * useful for future device drivers that either access the BIOS via VM86 - * mode. - */ - -/* - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - */ -.text - -#include <linux/linkage.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/boot.h> - -.section ".text.head","ax",@progbits - .globl startup_32 - -startup_32: - cld - cli - movl $(__BOOT_DS),%eax - movl %eax,%ds - movl %eax,%es - movl %eax,%fs - movl %eax,%gs - movl %eax,%ss - -/* Calculate the delta between where we were compiled to run - * at and where we were actually loaded at. This can only be done - * with a short local call on x86. Nothing else will tell us what - * address we are running at. The reserved chunk of the real-mode - * data at 0x1e4 (defined as a scratch field) are used as the stack - * for this calculation. Only 4 bytes are needed. - */ - leal (0x1e4+4)(%esi), %esp - call 1f -1: popl %ebp - subl $1b, %ebp - -/* %ebp contains the address we are loaded at by the boot loader and %ebx - * contains the address where we should move the kernel image temporarily - * for safe in-place decompression. - */ - -#ifdef CONFIG_RELOCATABLE - movl %ebp, %ebx - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebx - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebx -#else - movl $LOAD_PHYSICAL_ADDR, %ebx -#endif - - /* Replace the compressed data size with the uncompressed size */ - subl input_len(%ebp), %ebx - movl output_len(%ebp), %eax - addl %eax, %ebx - /* Add 8 bytes for every 32K input block */ - shrl $12, %eax - addl %eax, %ebx - /* Add 32K + 18 bytes of extra slack */ - addl $(32768 + 18), %ebx - /* Align on a 4K boundary */ - addl $4095, %ebx - andl $~4095, %ebx - -/* Copy the compressed kernel to the end of our buffer - * where decompression in place becomes safe. - */ - pushl %esi - leal _end(%ebp), %esi - leal _end(%ebx), %edi - movl $(_end - startup_32), %ecx - std - rep - movsb - cld - popl %esi - -/* Compute the kernel start address. - */ -#ifdef CONFIG_RELOCATABLE - addl $(CONFIG_PHYSICAL_ALIGN - 1), %ebp - andl $(~(CONFIG_PHYSICAL_ALIGN - 1)), %ebp -#else - movl $LOAD_PHYSICAL_ADDR, %ebp -#endif - -/* - * Jump to the relocated address. - */ - leal relocated(%ebx), %eax - jmp *%eax -.section ".text" -relocated: - -/* - * Clear BSS - */ - xorl %eax,%eax - leal _edata(%ebx),%edi - leal _end(%ebx), %ecx - subl %edi,%ecx - cld - rep - stosb - -/* - * Setup the stack for the decompressor - */ - leal stack_end(%ebx), %esp - -/* - * Do the decompression, and jump to the new kernel.. - */ - movl output_len(%ebx), %eax - pushl %eax - pushl %ebp # output address - movl input_len(%ebx), %eax - pushl %eax # input_len - leal input_data(%ebx), %eax - pushl %eax # input_data - leal _end(%ebx), %eax - pushl %eax # end of the image as third argument - pushl %esi # real mode pointer as second arg - call decompress_kernel - addl $20, %esp - popl %ecx - -#if CONFIG_RELOCATABLE -/* Find the address of the relocations. - */ - movl %ebp, %edi - addl %ecx, %edi - -/* Calculate the delta between where vmlinux was compiled to run - * and where it was actually loaded. - */ - movl %ebp, %ebx - subl $LOAD_PHYSICAL_ADDR, %ebx - jz 2f /* Nothing to be done if loaded at compiled addr. */ -/* - * Process relocations. - */ - -1: subl $4, %edi - movl 0(%edi), %ecx - testl %ecx, %ecx - jz 2f - addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) - jmp 1b -2: -#endif - -/* - * Jump to the decompressed kernel. - */ - xorl %ebx,%ebx - jmp *%ebp - -.bss -.balign 4 -stack: - .fill 4096, 1, 0 -stack_end: diff --git a/arch/i386/boot/compressed/misc.c b/arch/i386/boot/compressed/misc.c deleted file mode 100644 index b28505c544c9..000000000000 --- a/arch/i386/boot/compressed/misc.c +++ /dev/null @@ -1,379 +0,0 @@ -/* - * misc.c - * - * This is a collection of several routines from gzip-1.0.3 - * adapted for Linux. - * - * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 - * puts by Nick Holloway 1993, better puts by Martin Mares 1995 - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - */ - -#undef CONFIG_PARAVIRT -#include <linux/linkage.h> -#include <linux/vmalloc.h> -#include <linux/screen_info.h> -#include <asm/io.h> -#include <asm/page.h> -#include <asm/boot.h> - -/* WARNING!! - * This code is compiled with -fPIC and it is relocated dynamically - * at run time, but no relocation processing is performed. - * This means that it is not safe to place pointers in static structures. - */ - -/* - * Getting to provable safe in place decompression is hard. - * Worst case behaviours need to be analized. - * Background information: - * - * The file layout is: - * magic[2] - * method[1] - * flags[1] - * timestamp[4] - * extraflags[1] - * os[1] - * compressed data blocks[N] - * crc[4] orig_len[4] - * - * resulting in 18 bytes of non compressed data overhead. - * - * Files divided into blocks - * 1 bit (last block flag) - * 2 bits (block type) - * - * 1 block occurs every 32K -1 bytes or when there 50% compression has been achieved. - * The smallest block type encoding is always used. - * - * stored: - * 32 bits length in bytes. - * - * fixed: - * magic fixed tree. - * symbols. - * - * dynamic: - * dynamic tree encoding. - * symbols. - * - * - * The buffer for decompression in place is the length of the - * uncompressed data, plus a small amount extra to keep the algorithm safe. - * The compressed data is placed at the end of the buffer. The output - * pointer is placed at the start of the buffer and the input pointer - * is placed where the compressed data starts. Problems will occur - * when the output pointer overruns the input pointer. - * - * The output pointer can only overrun the input pointer if the input - * pointer is moving faster than the output pointer. A condition only - * triggered by data whose compressed form is larger than the uncompressed - * form. - * - * The worst case at the block level is a growth of the compressed data - * of 5 bytes per 32767 bytes. - * - * The worst case internal to a compressed block is very hard to figure. - * The worst case can at least be boundined by having one bit that represents - * 32764 bytes and then all of the rest of the bytes representing the very - * very last byte. - * - * All of which is enough to compute an amount of extra data that is required - * to be safe. To avoid problems at the block level allocating 5 extra bytes - * per 32767 bytes of data is sufficient. To avoind problems internal to a block - * adding an extra 32767 bytes (the worst case uncompressed block size) is - * sufficient, to ensure that in the worst case the decompressed data for - * block will stop the byte before the compressed data for a block begins. - * To avoid problems with the compressed data's meta information an extra 18 - * bytes are needed. Leading to the formula: - * - * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size. - * - * Adding 8 bytes per 32K is a bit excessive but much easier to calculate. - * Adding 32768 instead of 32767 just makes for round numbers. - * Adding the decompressor_size is necessary as it musht live after all - * of the data as well. Last I measured the decompressor is about 14K. - * 10K of actuall data and 4K of bss. - * - */ - -/* - * gzip declarations - */ - -#define OF(args) args -#define STATIC static - -#undef memset -#undef memcpy -#define memzero(s, n) memset ((s), 0, (n)) - -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x80000000 /* Window size must be at least 32k, - * and a power of two - * We don't actually have a window just - * a huge output buffer so I report - * a 2G windows size, as that should - * always be larger than our output buffer. - */ - -static uch *inbuf; /* input buffer */ -static uch *window; /* Sliding window buffer, (and final output buffer) */ - -static unsigned insize; /* valid bytes in inbuf */ -static unsigned inptr; /* index of next byte to be processed in inbuf */ -static unsigned outcnt; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond,msg) {if(!(cond)) error(msg);} -# define Trace(x) fprintf x -# define Tracev(x) {if (verbose) fprintf x ;} -# define Tracevv(x) {if (verbose>1) fprintf x ;} -# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} -# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} -#else -# define Assert(cond,msg) -# define Trace(x) -# define Tracev(x) -# define Tracevv(x) -# define Tracec(c,x) -# define Tracecv(c,x) -#endif - -static int fill_inbuf(void); -static void flush_window(void); -static void error(char *m); -static void gzip_mark(void **); -static void gzip_release(void **); - -/* - * This is set up by the setup-routine at boot-time - */ -static unsigned char *real_mode; /* Pointer to real-mode data */ - -#define RM_EXT_MEM_K (*(unsigned short *)(real_mode + 0x2)) -#ifndef STANDARD_MEMORY_BIOS_CALL -#define RM_ALT_MEM_K (*(unsigned long *)(real_mode + 0x1e0)) -#endif -#define RM_SCREEN_INFO (*(struct screen_info *)(real_mode+0)) - -extern unsigned char input_data[]; -extern int input_len; - -static long bytes_out = 0; - -static void *malloc(int size); -static void free(void *where); - -static void *memset(void *s, int c, unsigned n); -static void *memcpy(void *dest, const void *src, unsigned n); - -static void putstr(const char *); - -static unsigned long free_mem_ptr; -static unsigned long free_mem_end_ptr; - -#define HEAP_SIZE 0x4000 - -static char *vidmem = (char *)0xb8000; -static int vidport; -static int lines, cols; - -#ifdef CONFIG_X86_NUMAQ -void *xquad_portio; -#endif - -#include "../../../../lib/inflate.c" - -static void *malloc(int size) -{ - void *p; - - if (size <0) error("Malloc error"); - if (free_mem_ptr <= 0) error("Memory error"); - - free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ - - p = (void *)free_mem_ptr; - free_mem_ptr += size; - - if (free_mem_ptr >= free_mem_end_ptr) - error("Out of memory"); - - return p; -} - -static void free(void *where) -{ /* Don't care */ -} - -static void gzip_mark(void **ptr) -{ - *ptr = (void *) free_mem_ptr; -} - -static void gzip_release(void **ptr) -{ - free_mem_ptr = (unsigned long) *ptr; -} - -static void scroll(void) -{ - int i; - - memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 ); - for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 ) - vidmem[i] = ' '; -} - -static void putstr(const char *s) -{ - int x,y,pos; - char c; - - x = RM_SCREEN_INFO.orig_x; - y = RM_SCREEN_INFO.orig_y; - - while ( ( c = *s++ ) != '\0' ) { - if ( c == '\n' ) { - x = 0; - if ( ++y >= lines ) { - scroll(); - y--; - } - } else { - vidmem [ ( x + cols * y ) * 2 ] = c; - if ( ++x >= cols ) { - x = 0; - if ( ++y >= lines ) { - scroll(); - y--; - } - } - } - } - - RM_SCREEN_INFO.orig_x = x; - RM_SCREEN_INFO.orig_y = y; - - pos = (x + cols * y) * 2; /* Update cursor position */ - outb_p(14, vidport); - outb_p(0xff & (pos >> 9), vidport+1); - outb_p(15, vidport); - outb_p(0xff & (pos >> 1), vidport+1); -} - -static void* memset(void* s, int c, unsigned n) -{ - int i; - char *ss = (char*)s; - - for (i=0;i<n;i++) ss[i] = c; - return s; -} - -static void* memcpy(void* dest, const void* src, unsigned n) -{ - int i; - char *d = (char *)dest, *s = (char *)src; - - for (i=0;i<n;i++) d[i] = s[i]; - return dest; -} - -/* =========================================================================== - * Fill the input buffer. This is called only when the buffer is empty - * and at least one byte is really needed. - */ -static int fill_inbuf(void) -{ - error("ran out of input data"); - return 0; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ -static void flush_window(void) -{ - /* With my window equal to my output buffer - * I only need to compute the crc here. - */ - ulg c = crc; /* temporary variable */ - unsigned n; - uch *in, ch; - - in = window; - for (n = 0; n < outcnt; n++) { - ch = *in++; - c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8); - } - crc = c; - bytes_out += (ulg)outcnt; - outcnt = 0; -} - -static void error(char *x) -{ - putstr("\n\n"); - putstr(x); - putstr("\n\n -- System halted"); - - while(1); /* Halt */ -} - -asmlinkage void decompress_kernel(void *rmode, unsigned long end, - uch *input_data, unsigned long input_len, uch *output) -{ - real_mode = rmode; - - if (RM_SCREEN_INFO.orig_video_mode == 7) { - vidmem = (char *) 0xb0000; - vidport = 0x3b4; - } else { - vidmem = (char *) 0xb8000; - vidport = 0x3d4; - } - - lines = RM_SCREEN_INFO.orig_video_lines; - cols = RM_SCREEN_INFO.orig_video_cols; - - window = output; /* Output buffer (Normally at 1M) */ - free_mem_ptr = end; /* Heap */ - free_mem_end_ptr = end + HEAP_SIZE; - inbuf = input_data; /* Input buffer */ - insize = input_len; - inptr = 0; - - if ((u32)output & (CONFIG_PHYSICAL_ALIGN -1)) - error("Destination address not CONFIG_PHYSICAL_ALIGN aligned"); - if (end > ((-__PAGE_OFFSET-(512 <<20)-1) & 0x7fffffff)) - error("Destination address too large"); -#ifndef CONFIG_RELOCATABLE - if ((u32)output != LOAD_PHYSICAL_ADDR) - error("Wrong destination address"); -#endif - - makecrc(); - putstr("Uncompressing Linux... "); - gunzip(); - putstr("Ok, booting the kernel.\n"); - return; -} diff --git a/arch/i386/boot/compressed/relocs.c b/arch/i386/boot/compressed/relocs.c deleted file mode 100644 index ce4fda261aaf..000000000000 --- a/arch/i386/boot/compressed/relocs.c +++ /dev/null @@ -1,628 +0,0 @@ -#include <stdio.h> -#include <stdarg.h> -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <errno.h> -#include <unistd.h> -#include <elf.h> -#include <byteswap.h> -#define USE_BSD -#include <endian.h> - -#define MAX_SHDRS 100 -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -static Elf32_Ehdr ehdr; -static Elf32_Shdr shdr[MAX_SHDRS]; -static Elf32_Sym *symtab[MAX_SHDRS]; -static Elf32_Rel *reltab[MAX_SHDRS]; -static char *strtab[MAX_SHDRS]; -static unsigned long reloc_count, reloc_idx; -static unsigned long *relocs; - -/* - * Following symbols have been audited. There values are constant and do - * not change if bzImage is loaded at a different physical address than - * the address for which it has been compiled. Don't warn user about - * absolute relocations present w.r.t these symbols. - */ -static const char* safe_abs_relocs[] = { - "__kernel_vsyscall", - "__kernel_rt_sigreturn", - "__kernel_sigreturn", - "SYSENTER_RETURN", -}; - -static int is_safe_abs_reloc(const char* sym_name) -{ - int i, array_size; - - array_size = sizeof(safe_abs_relocs)/sizeof(char*); - - for(i = 0; i < array_size; i++) { - if (!strcmp(sym_name, safe_abs_relocs[i])) - /* Match found */ - return 1; - } - if (strncmp(sym_name, "__crc_", 6) == 0) - return 1; - return 0; -} - -static void die(char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - va_end(ap); - exit(1); -} - -static const char *sym_type(unsigned type) -{ - static const char *type_name[] = { -#define SYM_TYPE(X) [X] = #X - SYM_TYPE(STT_NOTYPE), - SYM_TYPE(STT_OBJECT), - SYM_TYPE(STT_FUNC), - SYM_TYPE(STT_SECTION), - SYM_TYPE(STT_FILE), - SYM_TYPE(STT_COMMON), - SYM_TYPE(STT_TLS), -#undef SYM_TYPE - }; - const char *name = "unknown sym type name"; - if (type < ARRAY_SIZE(type_name)) { - name = type_name[type]; - } - return name; -} - -static const char *sym_bind(unsigned bind) -{ - static const char *bind_name[] = { -#define SYM_BIND(X) [X] = #X - SYM_BIND(STB_LOCAL), - SYM_BIND(STB_GLOBAL), - SYM_BIND(STB_WEAK), -#undef SYM_BIND - }; - const char *name = "unknown sym bind name"; - if (bind < ARRAY_SIZE(bind_name)) { - name = bind_name[bind]; - } - return name; -} - -static const char *sym_visibility(unsigned visibility) -{ - static const char *visibility_name[] = { -#define SYM_VISIBILITY(X) [X] = #X - SYM_VISIBILITY(STV_DEFAULT), - SYM_VISIBILITY(STV_INTERNAL), - SYM_VISIBILITY(STV_HIDDEN), - SYM_VISIBILITY(STV_PROTECTED), -#undef SYM_VISIBILITY - }; - const char *name = "unknown sym visibility name"; - if (visibility < ARRAY_SIZE(visibility_name)) { - name = visibility_name[visibility]; - } - return name; -} - -static const char *rel_type(unsigned type) -{ - static const char *type_name[] = { -#define REL_TYPE(X) [X] = #X - REL_TYPE(R_386_NONE), - REL_TYPE(R_386_32), - REL_TYPE(R_386_PC32), - REL_TYPE(R_386_GOT32), - REL_TYPE(R_386_PLT32), - REL_TYPE(R_386_COPY), - REL_TYPE(R_386_GLOB_DAT), - REL_TYPE(R_386_JMP_SLOT), - REL_TYPE(R_386_RELATIVE), - REL_TYPE(R_386_GOTOFF), - REL_TYPE(R_386_GOTPC), -#undef REL_TYPE - }; - const char *name = "unknown type rel type name"; - if (type < ARRAY_SIZE(type_name)) { - name = type_name[type]; - } - return name; -} - -static const char *sec_name(unsigned shndx) -{ - const char *sec_strtab; - const char *name; - sec_strtab = strtab[ehdr.e_shstrndx]; - name = "<noname>"; - if (shndx < ehdr.e_shnum) { - name = sec_strtab + shdr[shndx].sh_name; - } - else if (shndx == SHN_ABS) { - name = "ABSOLUTE"; - } - else if (shndx == SHN_COMMON) { - name = "COMMON"; - } - return name; -} - -static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym) -{ - const char *name; - name = "<noname>"; - if (sym->st_name) { - name = sym_strtab + sym->st_name; - } - else { - name = sec_name(shdr[sym->st_shndx].sh_name); - } - return name; -} - - - -#if BYTE_ORDER == LITTLE_ENDIAN -#define le16_to_cpu(val) (val) -#define le32_to_cpu(val) (val) -#endif -#if BYTE_ORDER == BIG_ENDIAN -#define le16_to_cpu(val) bswap_16(val) -#define le32_to_cpu(val) bswap_32(val) -#endif - -static uint16_t elf16_to_cpu(uint16_t val) -{ - return le16_to_cpu(val); -} - -static uint32_t elf32_to_cpu(uint32_t val) -{ - return le32_to_cpu(val); -} - -static void read_ehdr(FILE *fp) -{ - if (fread(&ehdr, sizeof(ehdr), 1, fp) != 1) { - die("Cannot read ELF header: %s\n", - strerror(errno)); - } - if (memcmp(ehdr.e_ident, ELFMAG, 4) != 0) { - die("No ELF magic\n"); - } - if (ehdr.e_ident[EI_CLASS] != ELFCLASS32) { - die("Not a 32 bit executable\n"); - } - if (ehdr.e_ident[EI_DATA] != ELFDATA2LSB) { - die("Not a LSB ELF executable\n"); - } - if (ehdr.e_ident[EI_VERSION] != EV_CURRENT) { - die("Unknown ELF version\n"); - } - /* Convert the fields to native endian */ - ehdr.e_type = elf16_to_cpu(ehdr.e_type); - ehdr.e_machine = elf16_to_cpu(ehdr.e_machine); - ehdr.e_version = elf32_to_cpu(ehdr.e_version); - ehdr.e_entry = elf32_to_cpu(ehdr.e_entry); - ehdr.e_phoff = elf32_to_cpu(ehdr.e_phoff); - ehdr.e_shoff = elf32_to_cpu(ehdr.e_shoff); - ehdr.e_flags = elf32_to_cpu(ehdr.e_flags); - ehdr.e_ehsize = elf16_to_cpu(ehdr.e_ehsize); - ehdr.e_phentsize = elf16_to_cpu(ehdr.e_phentsize); - ehdr.e_phnum = elf16_to_cpu(ehdr.e_phnum); - ehdr.e_shentsize = elf16_to_cpu(ehdr.e_shentsize); - ehdr.e_shnum = elf16_to_cpu(ehdr.e_shnum); - ehdr.e_shstrndx = elf16_to_cpu(ehdr.e_shstrndx); - - if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) { - die("Unsupported ELF header type\n"); - } - if (ehdr.e_machine != EM_386) { - die("Not for x86\n"); - } - if (ehdr.e_version != EV_CURRENT) { - die("Unknown ELF version\n"); - } - if (ehdr.e_ehsize != sizeof(Elf32_Ehdr)) { - die("Bad Elf header size\n"); - } - if (ehdr.e_phentsize != sizeof(Elf32_Phdr)) { - die("Bad program header entry\n"); - } - if (ehdr.e_shentsize != sizeof(Elf32_Shdr)) { - die("Bad section header entry\n"); - } - if (ehdr.e_shstrndx >= ehdr.e_shnum) { - die("String table index out of bounds\n"); - } -} - -static void read_shdrs(FILE *fp) -{ - int i; - if (ehdr.e_shnum > MAX_SHDRS) { - die("%d section headers supported: %d\n", - ehdr.e_shnum, MAX_SHDRS); - } - if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) { - die("Seek to %d failed: %s\n", - ehdr.e_shoff, strerror(errno)); - } - if (fread(&shdr, sizeof(shdr[0]), ehdr.e_shnum, fp) != ehdr.e_shnum) { - die("Cannot read ELF section headers: %s\n", - strerror(errno)); - } - for(i = 0; i < ehdr.e_shnum; i++) { - shdr[i].sh_name = elf32_to_cpu(shdr[i].sh_name); - shdr[i].sh_type = elf32_to_cpu(shdr[i].sh_type); - shdr[i].sh_flags = elf32_to_cpu(shdr[i].sh_flags); - shdr[i].sh_addr = elf32_to_cpu(shdr[i].sh_addr); - shdr[i].sh_offset = elf32_to_cpu(shdr[i].sh_offset); - shdr[i].sh_size = elf32_to_cpu(shdr[i].sh_size); - shdr[i].sh_link = elf32_to_cpu(shdr[i].sh_link); - shdr[i].sh_info = elf32_to_cpu(shdr[i].sh_info); - shdr[i].sh_addralign = elf32_to_cpu(shdr[i].sh_addralign); - shdr[i].sh_entsize = elf32_to_cpu(shdr[i].sh_entsize); - } - -} - -static void read_strtabs(FILE *fp) -{ - int i; - for(i = 0; i < ehdr.e_shnum; i++) { - if (shdr[i].sh_type != SHT_STRTAB) { - continue; - } - strtab[i] = malloc(shdr[i].sh_size); - if (!strtab[i]) { - die("malloc of %d bytes for strtab failed\n", - shdr[i].sh_size); - } - if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { - die("Seek to %d failed: %s\n", - shdr[i].sh_offset, strerror(errno)); - } - if (fread(strtab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { - die("Cannot read symbol table: %s\n", - strerror(errno)); - } - } -} - -static void read_symtabs(FILE *fp) -{ - int i,j; - for(i = 0; i < ehdr.e_shnum; i++) { - if (shdr[i].sh_type != SHT_SYMTAB) { - continue; - } - symtab[i] = malloc(shdr[i].sh_size); - if (!symtab[i]) { - die("malloc of %d bytes for symtab failed\n", - shdr[i].sh_size); - } - if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { - die("Seek to %d failed: %s\n", - shdr[i].sh_offset, strerror(errno)); - } - if (fread(symtab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { - die("Cannot read symbol table: %s\n", - strerror(errno)); - } - for(j = 0; j < shdr[i].sh_size/sizeof(symtab[i][0]); j++) { - symtab[i][j].st_name = elf32_to_cpu(symtab[i][j].st_name); - symtab[i][j].st_value = elf32_to_cpu(symtab[i][j].st_value); - symtab[i][j].st_size = elf32_to_cpu(symtab[i][j].st_size); - symtab[i][j].st_shndx = elf16_to_cpu(symtab[i][j].st_shndx); - } - } -} - - -static void read_relocs(FILE *fp) -{ - int i,j; - for(i = 0; i < ehdr.e_shnum; i++) { - if (shdr[i].sh_type != SHT_REL) { - continue; - } - reltab[i] = malloc(shdr[i].sh_size); - if (!reltab[i]) { - die("malloc of %d bytes for relocs failed\n", - shdr[i].sh_size); - } - if (fseek(fp, shdr[i].sh_offset, SEEK_SET) < 0) { - die("Seek to %d failed: %s\n", - shdr[i].sh_offset, strerror(errno)); - } - if (fread(reltab[i], 1, shdr[i].sh_size, fp) != shdr[i].sh_size) { - die("Cannot read symbol table: %s\n", - strerror(errno)); - } - for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { - reltab[i][j].r_offset = elf32_to_cpu(reltab[i][j].r_offset); - reltab[i][j].r_info = elf32_to_cpu(reltab[i][j].r_info); - } - } -} - - -static void print_absolute_symbols(void) -{ - int i; - printf("Absolute symbols\n"); - printf(" Num: Value Size Type Bind Visibility Name\n"); - for(i = 0; i < ehdr.e_shnum; i++) { - char *sym_strtab; - Elf32_Sym *sh_symtab; - int j; - if (shdr[i].sh_type != SHT_SYMTAB) { - continue; - } - sh_symtab = symtab[i]; - sym_strtab = strtab[shdr[i].sh_link]; - for(j = 0; j < shdr[i].sh_size/sizeof(symtab[0][0]); j++) { - Elf32_Sym *sym; - const char *name; - sym = &symtab[i][j]; - name = sym_name(sym_strtab, sym); - if (sym->st_shndx != SHN_ABS) { - continue; - } - printf("%5d %08x %5d %10s %10s %12s %s\n", - j, sym->st_value, sym->st_size, - sym_type(ELF32_ST_TYPE(sym->st_info)), - sym_bind(ELF32_ST_BIND(sym->st_info)), - sym_visibility(ELF32_ST_VISIBILITY(sym->st_other)), - name); - } - } - printf("\n"); -} - -static void print_absolute_relocs(void) -{ - int i, printed = 0; - - for(i = 0; i < ehdr.e_shnum; i++) { - char *sym_strtab; - Elf32_Sym *sh_symtab; - unsigned sec_applies, sec_symtab; - int j; - if (shdr[i].sh_type != SHT_REL) { - continue; - } - sec_symtab = shdr[i].sh_link; - sec_applies = shdr[i].sh_info; - if (!(shdr[sec_applies].sh_flags & SHF_ALLOC)) { - continue; - } - sh_symtab = symtab[sec_symtab]; - sym_strtab = strtab[shdr[sec_symtab].sh_link]; - for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { - Elf32_Rel *rel; - Elf32_Sym *sym; - const char *name; - rel = &reltab[i][j]; - sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; - name = sym_name(sym_strtab, sym); - if (sym->st_shndx != SHN_ABS) { - continue; - } - - /* Absolute symbols are not relocated if bzImage is - * loaded at a non-compiled address. Display a warning - * to user at compile time about the absolute - * relocations present. - * - * User need to audit the code to make sure - * some symbols which should have been section - * relative have not become absolute because of some - * linker optimization or wrong programming usage. - * - * Before warning check if this absolute symbol - * relocation is harmless. - */ - if (is_safe_abs_reloc(name)) - continue; - - if (!printed) { - printf("WARNING: Absolute relocations" - " present\n"); - printf("Offset Info Type Sym.Value " - "Sym.Name\n"); - printed = 1; - } - - printf("%08x %08x %10s %08x %s\n", - rel->r_offset, - rel->r_info, - rel_type(ELF32_R_TYPE(rel->r_info)), - sym->st_value, - name); - } - } - - if (printed) - printf("\n"); -} - -static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym)) -{ - int i; - /* Walk through the relocations */ - for(i = 0; i < ehdr.e_shnum; i++) { - char *sym_strtab; - Elf32_Sym *sh_symtab; - unsigned sec_applies, sec_symtab; - int j; - if (shdr[i].sh_type != SHT_REL) { - continue; - } - sec_symtab = shdr[i].sh_link; - sec_applies = shdr[i].sh_info; - if (!(shdr[sec_applies].sh_flags & SHF_ALLOC)) { - continue; - } - sh_symtab = symtab[sec_symtab]; - sym_strtab = strtab[shdr[sec_symtab].sh_link]; - for(j = 0; j < shdr[i].sh_size/sizeof(reltab[0][0]); j++) { - Elf32_Rel *rel; - Elf32_Sym *sym; - unsigned r_type; - rel = &reltab[i][j]; - sym = &sh_symtab[ELF32_R_SYM(rel->r_info)]; - r_type = ELF32_R_TYPE(rel->r_info); - /* Don't visit relocations to absolute symbols */ - if (sym->st_shndx == SHN_ABS) { - continue; - } - if (r_type == R_386_PC32) { - /* PC relative relocations don't need to be adjusted */ - } - else if (r_type == R_386_32) { - /* Visit relocations that need to be adjusted */ - visit(rel, sym); - } - else { - die("Unsupported relocation type: %d\n", r_type); - } - } - } -} - -static void count_reloc(Elf32_Rel *rel, Elf32_Sym *sym) -{ - reloc_count += 1; -} - -static void collect_reloc(Elf32_Rel *rel, Elf32_Sym *sym) -{ - /* Remember the address that needs to be adjusted. */ - relocs[reloc_idx++] = rel->r_offset; -} - -static int cmp_relocs(const void *va, const void *vb) -{ - const unsigned long *a, *b; - a = va; b = vb; - return (*a == *b)? 0 : (*a > *b)? 1 : -1; -} - -static void emit_relocs(int as_text) -{ - int i; - /* Count how many relocations I have and allocate space for them. */ - reloc_count = 0; - walk_relocs(count_reloc); - relocs = malloc(reloc_count * sizeof(relocs[0])); - if (!relocs) { - die("malloc of %d entries for relocs failed\n", - reloc_count); - } - /* Collect up the relocations */ - reloc_idx = 0; - walk_relocs(collect_reloc); - - /* Order the relocations for more efficient processing */ - qsort(relocs, reloc_count, sizeof(relocs[0]), cmp_relocs); - - /* Print the relocations */ - if (as_text) { - /* Print the relocations in a form suitable that - * gas will like. - */ - printf(".section \".data.reloc\",\"a\"\n"); - printf(".balign 4\n"); - for(i = 0; i < reloc_count; i++) { - printf("\t .long 0x%08lx\n", relocs[i]); - } - printf("\n"); - } - else { - unsigned char buf[4]; - buf[0] = buf[1] = buf[2] = buf[3] = 0; - /* Print a stop */ - printf("%c%c%c%c", buf[0], buf[1], buf[2], buf[3]); - /* Now print each relocation */ - for(i = 0; i < reloc_count; i++) { - buf[0] = (relocs[i] >> 0) & 0xff; - buf[1] = (relocs[i] >> 8) & 0xff; - buf[2] = (relocs[i] >> 16) & 0xff; - buf[3] = (relocs[i] >> 24) & 0xff; - printf("%c%c%c%c", buf[0], buf[1], buf[2], buf[3]); - } - } -} - -static void usage(void) -{ - die("relocs [--abs-syms |--abs-relocs | --text] vmlinux\n"); -} - -int main(int argc, char **argv) -{ - int show_absolute_syms, show_absolute_relocs; - int as_text; - const char *fname; - FILE *fp; - int i; - - show_absolute_syms = 0; - show_absolute_relocs = 0; - as_text = 0; - fname = NULL; - for(i = 1; i < argc; i++) { - char *arg = argv[i]; - if (*arg == '-') { - if (strcmp(argv[1], "--abs-syms") == 0) { - show_absolute_syms = 1; - continue; - } - - if (strcmp(argv[1], "--abs-relocs") == 0) { - show_absolute_relocs = 1; - continue; - } - else if (strcmp(argv[1], "--text") == 0) { - as_text = 1; - continue; - } - } - else if (!fname) { - fname = arg; - continue; - } - usage(); - } - if (!fname) { - usage(); - } - fp = fopen(fname, "r"); - if (!fp) { - die("Cannot open %s: %s\n", - fname, strerror(errno)); - } - read_ehdr(fp); - read_shdrs(fp); - read_strtabs(fp); - read_symtabs(fp); - read_relocs(fp); - if (show_absolute_syms) { - print_absolute_symbols(); - return 0; - } - if (show_absolute_relocs) { - print_absolute_relocs(); - return 0; - } - emit_relocs(as_text); - return 0; -} diff --git a/arch/i386/boot/compressed/vmlinux.lds b/arch/i386/boot/compressed/vmlinux.lds deleted file mode 100644 index cc4854f6c6c1..000000000000 --- a/arch/i386/boot/compressed/vmlinux.lds +++ /dev/null @@ -1,43 +0,0 @@ -OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") -OUTPUT_ARCH(i386) -ENTRY(startup_32) -SECTIONS -{ - /* Be careful parts of head.S assume startup_32 is at - * address 0. - */ - . = 0 ; - .text.head : { - _head = . ; - *(.text.head) - _ehead = . ; - } - .data.compressed : { - *(.data.compressed) - } - .text : { - _text = .; /* Text */ - *(.text) - *(.text.*) - _etext = . ; - } - .rodata : { - _rodata = . ; - *(.rodata) /* read-only data */ - *(.rodata.*) - _erodata = . ; - } - .data : { - _data = . ; - *(.data) - *(.data.*) - _edata = . ; - } - .bss : { - _bss = . ; - *(.bss) - *(.bss.*) - *(COMMON) - _end = . ; - } -} diff --git a/arch/i386/boot/compressed/vmlinux.scr b/arch/i386/boot/compressed/vmlinux.scr deleted file mode 100644 index 707a88f7f29e..000000000000 --- a/arch/i386/boot/compressed/vmlinux.scr +++ /dev/null @@ -1,10 +0,0 @@ -SECTIONS -{ - .data.compressed : { - input_len = .; - LONG(input_data_end - input_data) input_data = .; - *(.data) - output_len = . - 4; - input_data_end = .; - } -} diff --git a/arch/i386/boot/copy.S b/arch/i386/boot/copy.S deleted file mode 100644 index ef127e56a3cf..000000000000 --- a/arch/i386/boot/copy.S +++ /dev/null @@ -1,101 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/copy.S - * - * Memory copy routines - */ - - .code16gcc - .text - - .globl memcpy - .type memcpy, @function -memcpy: - pushw %si - pushw %di - movw %ax, %di - movw %dx, %si - pushw %cx - shrw $2, %cx - rep; movsl - popw %cx - andw $3, %cx - rep; movsb - popw %di - popw %si - ret - .size memcpy, .-memcpy - - .globl memset - .type memset, @function -memset: - pushw %di - movw %ax, %di - movzbl %dl, %eax - imull $0x01010101,%eax - pushw %cx - shrw $2, %cx - rep; stosl - popw %cx - andw $3, %cx - rep; stosb - popw %di - ret - .size memset, .-memset - - .globl copy_from_fs - .type copy_from_fs, @function -copy_from_fs: - pushw %ds - pushw %fs - popw %ds - call memcpy - popw %ds - ret - .size copy_from_fs, .-copy_from_fs - - .globl copy_to_fs - .type copy_to_fs, @function -copy_to_fs: - pushw %es - pushw %fs - popw %es - call memcpy - popw %es - ret - .size copy_to_fs, .-copy_to_fs - -#if 0 /* Not currently used, but can be enabled as needed */ - - .globl copy_from_gs - .type copy_from_gs, @function -copy_from_gs: - pushw %ds - pushw %gs - popw %ds - call memcpy - popw %ds - ret - .size copy_from_gs, .-copy_from_gs - .globl copy_to_gs - - .type copy_to_gs, @function -copy_to_gs: - pushw %es - pushw %gs - popw %es - call memcpy - popw %es - ret - .size copy_to_gs, .-copy_to_gs - -#endif diff --git a/arch/i386/boot/cpu.c b/arch/i386/boot/cpu.c deleted file mode 100644 index 2a5c32da5852..000000000000 --- a/arch/i386/boot/cpu.c +++ /dev/null @@ -1,69 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/cpu.c - * - * Check for obligatory CPU features and abort if the features are not - * present. - */ - -#include "boot.h" -#include "bitops.h" -#include <asm/cpufeature.h> - -static char *cpu_name(int level) -{ - static char buf[6]; - - if (level == 64) { - return "x86-64"; - } else { - sprintf(buf, "i%d86", level); - return buf; - } -} - -int validate_cpu(void) -{ - u32 *err_flags; - int cpu_level, req_level; - - check_cpu(&cpu_level, &req_level, &err_flags); - - if (cpu_level < req_level) { - printf("This kernel requires an %s CPU, ", - cpu_name(req_level)); - printf("but only detected an %s CPU.\n", - cpu_name(cpu_level)); - return -1; - } - - if (err_flags) { - int i, j; - puts("This kernel requires the following features " - "not present on the CPU:\n"); - - for (i = 0; i < NCAPINTS; i++) { - u32 e = err_flags[i]; - - for (j = 0; j < 32; j++) { - if (e & 1) - printf("%d:%d ", i, j); - - e >>= 1; - } - } - putchar('\n'); - return -1; - } else { - return 0; - } -} diff --git a/arch/i386/boot/cpucheck.c b/arch/i386/boot/cpucheck.c deleted file mode 100644 index 8b0f4473b083..000000000000 --- a/arch/i386/boot/cpucheck.c +++ /dev/null @@ -1,267 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/cpucheck.c - * - * Check for obligatory CPU features and abort if the features are not - * present. This code should be compilable as 16-, 32- or 64-bit - * code, so be very careful with types and inline assembly. - * - * This code should not contain any messages; that requires an - * additional wrapper. - * - * As written, this code is not safe for inclusion into the kernel - * proper (after FPU initialization, in particular). - */ - -#ifdef _SETUP -# include "boot.h" -# include "bitops.h" -#endif -#include <linux/types.h> -#include <asm/cpufeature.h> -#include <asm/processor-flags.h> -#include <asm/required-features.h> -#include <asm/msr-index.h> - -struct cpu_features { - int level; /* Family, or 64 for x86-64 */ - int model; - u32 flags[NCAPINTS]; -}; - -static struct cpu_features cpu; -static u32 cpu_vendor[3]; -static u32 err_flags[NCAPINTS]; - -#ifdef CONFIG_X86_64 -static const int req_level = 64; -#elif defined(CONFIG_X86_MINIMUM_CPU_FAMILY) -static const int req_level = CONFIG_X86_MINIMUM_CPU_FAMILY; -#else -static const int req_level = 3; -#endif - -static const u32 req_flags[NCAPINTS] = -{ - REQUIRED_MASK0, - REQUIRED_MASK1, - REQUIRED_MASK2, - REQUIRED_MASK3, - REQUIRED_MASK4, - REQUIRED_MASK5, - REQUIRED_MASK6, - REQUIRED_MASK7, -}; - -#define A32(a,b,c,d) (((d) << 24)+((c) << 16)+((b) << 8)+(a)) - -static int is_amd(void) -{ - return cpu_vendor[0] == A32('A','u','t','h') && - cpu_vendor[1] == A32('e','n','t','i') && - cpu_vendor[2] == A32('c','A','M','D'); -} - -static int is_centaur(void) -{ - return cpu_vendor[0] == A32('C','e','n','t') && - cpu_vendor[1] == A32('a','u','r','H') && - cpu_vendor[2] == A32('a','u','l','s'); -} - -static int is_transmeta(void) -{ - return cpu_vendor[0] == A32('G','e','n','u') && - cpu_vendor[1] == A32('i','n','e','T') && - cpu_vendor[2] == A32('M','x','8','6'); -} - -static int has_fpu(void) -{ - u16 fcw = -1, fsw = -1; - u32 cr0; - - asm("movl %%cr0,%0" : "=r" (cr0)); - if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { - cr0 &= ~(X86_CR0_EM|X86_CR0_TS); - asm volatile("movl %0,%%cr0" : : "r" (cr0)); - } - - asm("fninit ; fnstsw %0 ; fnstcw %1" : "+m" (fsw), "+m" (fcw)); - - return fsw == 0 && (fcw & 0x103f) == 0x003f; -} - -static int has_eflag(u32 mask) -{ - u32 f0, f1; - - asm("pushfl ; " - "pushfl ; " - "popl %0 ; " - "movl %0,%1 ; " - "xorl %2,%1 ; " - "pushl %1 ; " - "popfl ; " - "pushfl ; " - "popl %1 ; " - "popfl" - : "=r" (f0), "=r" (f1) - : "g" (mask)); - - return !!((f0^f1) & mask); -} - -static void get_flags(void) -{ - u32 max_intel_level, max_amd_level; - u32 tfms; - - if (has_fpu()) - set_bit(X86_FEATURE_FPU, cpu.flags); - - if (has_eflag(X86_EFLAGS_ID)) { - asm("cpuid" - : "=a" (max_intel_level), - "=b" (cpu_vendor[0]), - "=d" (cpu_vendor[1]), - "=c" (cpu_vendor[2]) - : "a" (0)); - - if (max_intel_level >= 0x00000001 && - max_intel_level <= 0x0000ffff) { - asm("cpuid" - : "=a" (tfms), - "=c" (cpu.flags[4]), - "=d" (cpu.flags[0]) - : "a" (0x00000001) - : "ebx"); - cpu.level = (tfms >> 8) & 15; - cpu.model = (tfms >> 4) & 15; - if (cpu.level >= 6) - cpu.model += ((tfms >> 16) & 0xf) << 4; - } - - asm("cpuid" - : "=a" (max_amd_level) - : "a" (0x80000000) - : "ebx", "ecx", "edx"); - - if (max_amd_level >= 0x80000001 && - max_amd_level <= 0x8000ffff) { - u32 eax = 0x80000001; - asm("cpuid" - : "+a" (eax), - "=c" (cpu.flags[6]), - "=d" (cpu.flags[1]) - : : "ebx"); - } - } -} - -/* Returns a bitmask of which words we have error bits in */ -static int check_flags(void) -{ - u32 err; - int i; - - err = 0; - for (i = 0; i < NCAPINTS; i++) { - err_flags[i] = req_flags[i] & ~cpu.flags[i]; - if (err_flags[i]) - err |= 1 << i; - } - - return err; -} - -/* - * Returns -1 on error. - * - * *cpu_level is set to the current CPU level; *req_level to the required - * level. x86-64 is considered level 64 for this purpose. - * - * *err_flags_ptr is set to the flags error array if there are flags missing. - */ -int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) -{ - int err; - - memset(&cpu.flags, 0, sizeof cpu.flags); - cpu.level = 3; - - if (has_eflag(X86_EFLAGS_AC)) - cpu.level = 4; - - get_flags(); - err = check_flags(); - - if (test_bit(X86_FEATURE_LM, cpu.flags)) - cpu.level = 64; - - if (err == 0x01 && - !(err_flags[0] & - ~((1 << X86_FEATURE_XMM)|(1 << X86_FEATURE_XMM2))) && - is_amd()) { - /* If this is an AMD and we're only missing SSE+SSE2, try to - turn them on */ - - u32 ecx = MSR_K7_HWCR; - u32 eax, edx; - - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax &= ~(1 << 15); - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - get_flags(); /* Make sure it really did something */ - err = check_flags(); - } else if (err == 0x01 && - !(err_flags[0] & ~(1 << X86_FEATURE_CX8)) && - is_centaur() && cpu.model >= 6) { - /* If this is a VIA C3, we might have to enable CX8 - explicitly */ - - u32 ecx = MSR_VIA_FCR; - u32 eax, edx; - - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax |= (1<<1)|(1<<7); - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - set_bit(X86_FEATURE_CX8, cpu.flags); - err = check_flags(); - } else if (err == 0x01 && is_transmeta()) { - /* Transmeta might have masked feature bits in word 0 */ - - u32 ecx = 0x80860004; - u32 eax, edx; - u32 level = 1; - - asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); - asm("cpuid" - : "+a" (level), "=d" (cpu.flags[0]) - : : "ecx", "ebx"); - asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - err = check_flags(); - } - - if (err_flags_ptr) - *err_flags_ptr = err ? err_flags : NULL; - if (cpu_level_ptr) - *cpu_level_ptr = cpu.level; - if (req_level_ptr) - *req_level_ptr = req_level; - - return (cpu.level < req_level || err) ? -1 : 0; -} diff --git a/arch/i386/boot/edd.c b/arch/i386/boot/edd.c deleted file mode 100644 index 25a282494f4c..000000000000 --- a/arch/i386/boot/edd.c +++ /dev/null @@ -1,196 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/edd.c - * - * Get EDD BIOS disk information - */ - -#include "boot.h" -#include <linux/edd.h> - -#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) - -struct edd_dapa { - u8 pkt_size; - u8 rsvd; - u16 sector_cnt; - u16 buf_off, buf_seg; - u64 lba; - u64 buf_lin_addr; -}; - -/* - * Read the MBR (first sector) from a specific device. - */ -static int read_mbr(u8 devno, void *buf) -{ - struct edd_dapa dapa; - u16 ax, bx, cx, dx, si; - - memset(&dapa, 0, sizeof dapa); - dapa.pkt_size = sizeof(dapa); - dapa.sector_cnt = 1; - dapa.buf_off = (size_t)buf; - dapa.buf_seg = ds(); - /* dapa.lba = 0; */ - - ax = 0x4200; /* Extended Read */ - si = (size_t)&dapa; - dx = devno; - asm("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+S" (si), "+d" (dx) - : "m" (dapa) - : "ebx", "ecx", "edi", "memory"); - - if (!(u8)ax) - return 0; /* OK */ - - ax = 0x0201; /* Legacy Read, one sector */ - cx = 0x0001; /* Sector 0-0-1 */ - dx = devno; - bx = (size_t)buf; - asm("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+c" (cx), "+d" (dx), "+b" (bx) - : : "esi", "edi", "memory"); - - return -(u8)ax; /* 0 or -1 */ -} - -static u32 read_mbr_sig(u8 devno, struct edd_info *ei) -{ - int sector_size; - char *mbrbuf_ptr, *mbrbuf_end; - u32 mbrsig; - u32 buf_base, mbr_base; - extern char _end[]; - static char mbr_buf[1024]; - - sector_size = ei->params.bytes_per_sector; - if (!sector_size) - sector_size = 512; /* Best available guess */ - - buf_base = (ds() << 4) + (u32)&_end; - mbr_base = (buf_base+sector_size-1) & ~(sector_size-1); - mbrbuf_ptr = mbr_buf + (mbr_base-buf_base); - mbrbuf_end = mbrbuf_ptr + sector_size; - - if (!(boot_params.hdr.loadflags & CAN_USE_HEAP)) - return 0; - if (mbrbuf_end > (char *)(size_t)boot_params.hdr.heap_end_ptr) - return 0; - - if (read_mbr(devno, mbrbuf_ptr)) - return 0; - - mbrsig = *(u32 *)&mbrbuf_ptr[EDD_MBR_SIG_OFFSET]; - return mbrsig; -} - -static int get_edd_info(u8 devno, struct edd_info *ei) -{ - u16 ax, bx, cx, dx, di; - - memset(ei, 0, sizeof *ei); - - /* Check Extensions Present */ - - ax = 0x4100; - bx = EDDMAGIC1; - dx = devno; - asm("pushfl; stc; int $0x13; setc %%al; popfl" - : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx) - : : "esi", "edi"); - - if ((u8)ax) - return -1; /* No extended information */ - - if (bx != EDDMAGIC2) - return -1; - - ei->device = devno; - ei->version = ax >> 8; /* EDD version number */ - ei->interface_support = cx; /* EDD functionality subsets */ - - /* Extended Get Device Parameters */ - - ei->params.length = sizeof(ei->params); - ax = 0x4800; - dx = devno; - asm("pushfl; int $0x13; popfl" - : "+a" (ax), "+d" (dx) - : "S" (&ei->params) - : "ebx", "ecx", "edi"); - - /* Get legacy CHS parameters */ - - /* Ralf Brown recommends setting ES:DI to 0:0 */ - ax = 0x0800; - dx = devno; - di = 0; - asm("pushw %%es; " - "movw %%di,%%es; " - "pushfl; stc; int $0x13; setc %%al; popfl; " - "popw %%es" - : "+a" (ax), "=b" (bx), "=c" (cx), "+d" (dx), "+D" (di) - : : "esi"); - - if ((u8)ax == 0) { - ei->legacy_max_cylinder = (cx >> 8) + ((cx & 0xc0) << 2); - ei->legacy_max_head = dx >> 8; - ei->legacy_sectors_per_track = cx & 0x3f; - } - - return 0; -} - -void query_edd(void) -{ - char eddarg[8]; - int do_mbr = 1; - int do_edd = 1; - int devno; - struct edd_info ei, *edp; - - if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) { - if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) - do_mbr = 0; - else if (!strcmp(eddarg, "off")) - do_edd = 0; - } - - edp = (struct edd_info *)boot_params.eddbuf; - - if (!do_edd) - return; - - for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) { - /* - * Scan the BIOS-supported hard disks and query EDD - * information... - */ - get_edd_info(devno, &ei); - - if (boot_params.eddbuf_entries < EDDMAXNR) { - memcpy(edp, &ei, sizeof ei); - edp++; - boot_params.eddbuf_entries++; - } - - if (do_mbr) { - u32 mbr_sig; - mbr_sig = read_mbr_sig(devno, &ei); - boot_params.edd_mbr_sig_buffer[devno-0x80] = mbr_sig; - } - } -} - -#endif diff --git a/arch/i386/boot/header.S b/arch/i386/boot/header.S deleted file mode 100644 index 6b9923fb6eae..000000000000 --- a/arch/i386/boot/header.S +++ /dev/null @@ -1,283 +0,0 @@ -/* - * header.S - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * Based on bootsect.S and setup.S - * modified by more people than can be counted - * - * Rewritten as a common file by H. Peter Anvin (Apr 2007) - * - * BIG FAT NOTE: We're in real mode using 64k segments. Therefore segment - * addresses must be multiplied by 16 to obtain their respective linear - * addresses. To avoid confusion, linear addresses are written using leading - * hex while segment addresses are written as segment:offset. - * - */ - -#include <asm/segment.h> -#include <linux/utsrelease.h> -#include <asm/boot.h> -#include <asm/e820.h> -#include <asm/page.h> -#include <asm/setup.h> -#include "boot.h" - -SETUPSECTS = 4 /* default nr of setup-sectors */ -BOOTSEG = 0x07C0 /* original address of boot-sector */ -SYSSEG = DEF_SYSSEG /* system loaded at 0x10000 (65536) */ -SYSSIZE = DEF_SYSSIZE /* system size: # of 16-byte clicks */ - /* to be loaded */ -ROOT_DEV = 0 /* ROOT_DEV is now written by "build" */ -SWAP_DEV = 0 /* SWAP_DEV is now written by "build" */ - -#ifndef SVGA_MODE -#define SVGA_MODE ASK_VGA -#endif - -#ifndef RAMDISK -#define RAMDISK 0 -#endif - -#ifndef ROOT_RDONLY -#define ROOT_RDONLY 1 -#endif - - .code16 - .section ".bstext", "ax" - - .global bootsect_start -bootsect_start: - - # Normalize the start address - ljmp $BOOTSEG, $start2 - -start2: - movw %cs, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %ss - xorw %sp, %sp - sti - cld - - movw $bugger_off_msg, %si - -msg_loop: - lodsb - andb %al, %al - jz bs_die - movb $0xe, %ah - movw $7, %bx - int $0x10 - jmp msg_loop - -bs_die: - # Allow the user to press a key, then reboot - xorw %ax, %ax - int $0x16 - int $0x19 - - # int 0x19 should never return. In case it does anyway, - # invoke the BIOS reset code... - ljmp $0xf000,$0xfff0 - - .section ".bsdata", "a" -bugger_off_msg: - .ascii "Direct booting from floppy is no longer supported.\r\n" - .ascii "Please use a boot loader program instead.\r\n" - .ascii "\n" - .ascii "Remove disk and press any key to reboot . . .\r\n" - .byte 0 - - - # Kernel attributes; used by setup. This is part 1 of the - # header, from the old boot sector. - - .section ".header", "a" - .globl hdr -hdr: -setup_sects: .byte SETUPSECTS -root_flags: .word ROOT_RDONLY -syssize: .long SYSSIZE -ram_size: .word RAMDISK -vid_mode: .word SVGA_MODE -root_dev: .word ROOT_DEV -boot_flag: .word 0xAA55 - - # offset 512, entry point - - .globl _start -_start: - # Explicitly enter this as bytes, or the assembler - # tries to generate a 3-byte jump here, which causes - # everything else to push off to the wrong offset. - .byte 0xeb # short (2-byte) jump - .byte start_of_setup-1f -1: - - # Part 2 of the header, from the old setup.S - - .ascii "HdrS" # header signature - .word 0x0206 # header version number (>= 0x0105) - # or else old loadlin-1.5 will fail) - .globl realmode_swtch -realmode_swtch: .word 0, 0 # default_switch, SETUPSEG -start_sys_seg: .word SYSSEG - .word kernel_version-512 # pointing to kernel version string - # above section of header is compatible - # with loadlin-1.5 (header v1.5). Don't - # change it. - -type_of_loader: .byte 0 # = 0, old one (LILO, Loadlin, - # Bootlin, SYSLX, bootsect...) - # See Documentation/i386/boot.txt for - # assigned ids - -# flags, unused bits must be zero (RFU) bit within loadflags -loadflags: -LOADED_HIGH = 1 # If set, the kernel is loaded high -CAN_USE_HEAP = 0x80 # If set, the loader also has set - # heap_end_ptr to tell how much - # space behind setup.S can be used for - # heap purposes. - # Only the loader knows what is free -#ifndef __BIG_KERNEL__ - .byte 0 -#else - .byte LOADED_HIGH -#endif - -setup_move_size: .word 0x8000 # size to move, when setup is not - # loaded at 0x90000. We will move setup - # to 0x90000 then just before jumping - # into the kernel. However, only the - # loader knows how much data behind - # us also needs to be loaded. - -code32_start: # here loaders can put a different - # start address for 32-bit code. -#ifndef __BIG_KERNEL__ - .long 0x1000 # 0x1000 = default for zImage -#else - .long 0x100000 # 0x100000 = default for big kernel -#endif - -ramdisk_image: .long 0 # address of loaded ramdisk image - # Here the loader puts the 32-bit - # address where it loaded the image. - # This only will be read by the kernel. - -ramdisk_size: .long 0 # its size in bytes - -bootsect_kludge: - .long 0 # obsolete - -heap_end_ptr: .word _end+1024 # (Header version 0x0201 or later) - # space from here (exclusive) down to - # end of setup code can be used by setup - # for local heap purposes. - -pad1: .word 0 -cmd_line_ptr: .long 0 # (Header version 0x0202 or later) - # If nonzero, a 32-bit pointer - # to the kernel command line. - # The command line should be - # located between the start of - # setup and the end of low - # memory (0xa0000), or it may - # get overwritten before it - # gets read. If this field is - # used, there is no longer - # anything magical about the - # 0x90000 segment; the setup - # can be located anywhere in - # low memory 0x10000 or higher. - -ramdisk_max: .long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff - # (Header version 0x0203 or later) - # The highest safe address for - # the contents of an initrd - -kernel_alignment: .long CONFIG_PHYSICAL_ALIGN #physical addr alignment - #required for protected mode - #kernel -#ifdef CONFIG_RELOCATABLE -relocatable_kernel: .byte 1 -#else -relocatable_kernel: .byte 0 -#endif -pad2: .byte 0 -pad3: .word 0 - -cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, - #added with boot protocol - #version 2.06 - -# End of setup header ##################################################### - - .section ".inittext", "ax" -start_of_setup: -#ifdef SAFE_RESET_DISK_CONTROLLER -# Reset the disk controller. - movw $0x0000, %ax # Reset disk controller - movb $0x80, %dl # All disks - int $0x13 -#endif - -# We will have entired with %cs = %ds+0x20, normalize %cs so -# it is on par with the other segments. - pushw %ds - pushw $setup2 - lretw - -setup2: -# Force %es = %ds - movw %ds, %ax - movw %ax, %es - cld - -# Stack paranoia: align the stack and make sure it is good -# for both 16- and 32-bit references. In particular, if we -# were meant to have been using the full 16-bit segment, the -# caller might have set %sp to zero, which breaks %esp-based -# references. - andw $~3, %sp # dword align (might as well...) - jnz 1f - movw $0xfffc, %sp # Make sure we're not zero -1: movzwl %sp, %esp # Clear upper half of %esp - sti - -# Check signature at end of setup - cmpl $0x5a5aaa55, setup_sig - jne setup_bad - -# Zero the bss - movw $__bss_start, %di - movw $_end+3, %cx - xorl %eax, %eax - subw %di, %cx - shrw $2, %cx - rep; stosl - -# Jump to C code (should not return) - calll main - -# Setup corrupt somehow... -setup_bad: - movl $setup_corrupt, %eax - calll puts - # Fall through... - - .globl die - .type die, @function -die: - hlt - jmp die - - .size die, .-due - - .section ".initdata", "a" -setup_corrupt: - .byte 7 - .string "No setup signature found..." diff --git a/arch/i386/boot/install.sh b/arch/i386/boot/install.sh deleted file mode 100644 index 5e44c736eea8..000000000000 --- a/arch/i386/boot/install.sh +++ /dev/null @@ -1,54 +0,0 @@ -#!/bin/sh -# -# arch/i386/boot/install.sh -# -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1995 by Linus Torvalds -# -# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin -# -# "make install" script for i386 architecture -# -# Arguments: -# $1 - kernel version -# $2 - kernel image file -# $3 - kernel map file -# $4 - default install path (blank if root directory) -# - -verify () { - if [ ! -f "$1" ]; then - echo "" 1>&2 - echo " *** Missing file: $1" 1>&2 - echo ' *** You need to run "make" before "make install".' 1>&2 - echo "" 1>&2 - exit 1 - fi -} - -# Make sure the files actually exist -verify "$2" -verify "$3" - -# User may have a custom install script - -if [ -x ~/bin/${CROSS_COMPILE}installkernel ]; then exec ~/bin/${CROSS_COMPILE}installkernel "$@"; fi -if [ -x /sbin/${CROSS_COMPILE}installkernel ]; then exec /sbin/${CROSS_COMPILE}installkernel "$@"; fi - -# Default install - same as make zlilo - -if [ -f $4/vmlinuz ]; then - mv $4/vmlinuz $4/vmlinuz.old -fi - -if [ -f $4/System.map ]; then - mv $4/System.map $4/System.old -fi - -cat $2 > $4/vmlinuz -cp $3 $4/System.map - -if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi diff --git a/arch/i386/boot/main.c b/arch/i386/boot/main.c deleted file mode 100644 index 7f01f96c4fb8..000000000000 --- a/arch/i386/boot/main.c +++ /dev/null @@ -1,161 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/main.c - * - * Main module for the real-mode kernel code - */ - -#include "boot.h" - -struct boot_params boot_params __attribute__((aligned(16))); - -char *HEAP = _end; -char *heap_end = _end; /* Default end of heap = no heap */ - -/* - * Copy the header into the boot parameter block. Since this - * screws up the old-style command line protocol, adjust by - * filling in the new-style command line pointer instead. - */ -#define OLD_CL_MAGIC 0xA33F -#define OLD_CL_ADDRESS 0x20 - -static void copy_boot_params(void) -{ - struct old_cmdline { - u16 cl_magic; - u16 cl_offset; - }; - const struct old_cmdline * const oldcmd = - (const struct old_cmdline *)OLD_CL_ADDRESS; - - BUILD_BUG_ON(sizeof boot_params != 4096); - memcpy(&boot_params.hdr, &hdr, sizeof hdr); - - if (!boot_params.hdr.cmd_line_ptr && - oldcmd->cl_magic == OLD_CL_MAGIC) { - /* Old-style command line protocol. */ - u16 cmdline_seg; - - /* Figure out if the command line falls in the region - of memory that an old kernel would have copied up - to 0x90000... */ - if (oldcmd->cl_offset < boot_params.hdr.setup_move_size) - cmdline_seg = ds(); - else - cmdline_seg = 0x9000; - - boot_params.hdr.cmd_line_ptr = - (cmdline_seg << 4) + oldcmd->cl_offset; - } -} - -/* - * Set the keyboard repeat rate to maximum. Unclear why this - * is done here; this might be possible to kill off as stale code. - */ -static void keyboard_set_repeat(void) -{ - u16 ax = 0x0305; - u16 bx = 0; - asm volatile("int $0x16" - : "+a" (ax), "+b" (bx) - : : "ecx", "edx", "esi", "edi"); -} - -/* - * Get Intel SpeedStep IST information. - */ -static void query_speedstep_ist(void) -{ - asm("int $0x15" - : "=a" (boot_params.speedstep_info[0]), - "=b" (boot_params.speedstep_info[1]), - "=c" (boot_params.speedstep_info[2]), - "=d" (boot_params.speedstep_info[3]) - : "a" (0x0000e980), /* IST Support */ - "d" (0x47534943)); /* Request value */ -} - -/* - * Tell the BIOS what CPU mode we intend to run in. - */ -static void set_bios_mode(void) -{ -#ifdef CONFIG_X86_64 - u32 eax, ebx; - - eax = 0xec00; - ebx = 2; - asm volatile("int $0x15" - : "+a" (eax), "+b" (ebx) - : : "ecx", "edx", "esi", "edi"); -#endif -} - -void main(void) -{ - /* First, copy the boot header into the "zeropage" */ - copy_boot_params(); - - /* End of heap check */ - if (boot_params.hdr.loadflags & CAN_USE_HEAP) { - heap_end = (char *)(boot_params.hdr.heap_end_ptr - +0x200-STACK_SIZE); - } else { - /* Boot protocol 2.00 only, no heap available */ - puts("WARNING: Ancient bootloader, some functionality " - "may be limited!\n"); - } - - /* Make sure we have all the proper CPU support */ - if (validate_cpu()) { - puts("Unable to boot - please use a kernel appropriate " - "for your CPU.\n"); - die(); - } - - /* Tell the BIOS what CPU mode we intend to run in. */ - set_bios_mode(); - - /* Detect memory layout */ - detect_memory(); - - /* Set keyboard repeat rate (why?) */ - keyboard_set_repeat(); - - /* Set the video mode */ - set_video(); - - /* Query MCA information */ - query_mca(); - - /* Voyager */ -#ifdef CONFIG_X86_VOYAGER - query_voyager(); -#endif - - /* Query SpeedStep IST information */ - query_speedstep_ist(); - - /* Query APM information */ -#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) - query_apm_bios(); -#endif - - /* Query EDD information */ -#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) - query_edd(); -#endif - /* Do the last things and invoke protected mode */ - go_to_protected_mode(); -} diff --git a/arch/i386/boot/mca.c b/arch/i386/boot/mca.c deleted file mode 100644 index 9b68bd1aef19..000000000000 --- a/arch/i386/boot/mca.c +++ /dev/null @@ -1,43 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/mca.c - * - * Get the MCA system description table - */ - -#include "boot.h" - -int query_mca(void) -{ - u8 err; - u16 es, bx, len; - - asm("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " - "popw %%es" - : "=acdSDm" (err), "=acdSDm" (es), "=b" (bx) - : "a" (0xc000)); - - if (err) - return -1; /* No MCA present */ - - set_fs(es); - len = rdfs16(bx); - - if (len > sizeof(boot_params.sys_desc_table)) - len = sizeof(boot_params.sys_desc_table); - - copy_from_fs(&boot_params.sys_desc_table, bx, len); - return 0; -} diff --git a/arch/i386/boot/memory.c b/arch/i386/boot/memory.c deleted file mode 100644 index 1a2e62db8bed..000000000000 --- a/arch/i386/boot/memory.c +++ /dev/null @@ -1,99 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/memory.c - * - * Memory detection code - */ - -#include "boot.h" - -#define SMAP 0x534d4150 /* ASCII "SMAP" */ - -static int detect_memory_e820(void) -{ - u32 next = 0; - u32 size, id; - u8 err; - struct e820entry *desc = boot_params.e820_map; - - do { - size = sizeof(struct e820entry); - id = SMAP; - asm("int $0x15; setc %0" - : "=am" (err), "+b" (next), "+d" (id), "+c" (size), - "=m" (*desc) - : "D" (desc), "a" (0xe820)); - - if (err || id != SMAP) - break; - - boot_params.e820_entries++; - desc++; - } while (next && boot_params.e820_entries < E820MAX); - - return boot_params.e820_entries; -} - -static int detect_memory_e801(void) -{ - u16 ax, bx, cx, dx; - u8 err; - - bx = cx = dx = 0; - ax = 0xe801; - asm("stc; int $0x15; setc %0" - : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx)); - - if (err) - return -1; - - /* Do we really need to do this? */ - if (cx || dx) { - ax = cx; - bx = dx; - } - - if (ax > 15*1024) - return -1; /* Bogus! */ - - /* This ignores memory above 16MB if we have a memory hole - there. If someone actually finds a machine with a memory - hole at 16MB and no support for 0E820h they should probably - generate a fake e820 map. */ - boot_params.alt_mem_k = (ax == 15*1024) ? (dx << 6)+ax : ax; - - return 0; -} - -static int detect_memory_88(void) -{ - u16 ax; - u8 err; - - ax = 0x8800; - asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); - - boot_params.screen_info.ext_mem_k = ax; - - return -err; -} - -int detect_memory(void) -{ - if (detect_memory_e820() > 0) - return 0; - - if (!detect_memory_e801()) - return 0; - - return detect_memory_88(); -} diff --git a/arch/i386/boot/mtools.conf.in b/arch/i386/boot/mtools.conf.in deleted file mode 100644 index efd6d2490c1d..000000000000 --- a/arch/i386/boot/mtools.conf.in +++ /dev/null @@ -1,17 +0,0 @@ -# -# mtools configuration file for "make (b)zdisk" -# - -# Actual floppy drive -drive a: - file="/dev/fd0" - -# 1.44 MB floppy disk image -drive v: - file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=18 filter - -# 2.88 MB floppy disk image (mostly for virtual uses) -drive w: - file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=36 filter - - diff --git a/arch/i386/boot/pm.c b/arch/i386/boot/pm.c deleted file mode 100644 index 3fa53e15ed77..000000000000 --- a/arch/i386/boot/pm.c +++ /dev/null @@ -1,170 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/pm.c - * - * Prepare the machine for transition to protected mode. - */ - -#include "boot.h" -#include <asm/segment.h> - -/* - * Invoke the realmode switch hook if present; otherwise - * disable all interrupts. - */ -static void realmode_switch_hook(void) -{ - if (boot_params.hdr.realmode_swtch) { - asm volatile("lcallw *%0" - : : "m" (boot_params.hdr.realmode_swtch) - : "eax", "ebx", "ecx", "edx"); - } else { - asm volatile("cli"); - outb(0x80, 0x70); /* Disable NMI */ - io_delay(); - } -} - -/* - * A zImage kernel is loaded at 0x10000 but wants to run at 0x1000. - * A bzImage kernel is loaded and runs at 0x100000. - */ -static void move_kernel_around(void) -{ - /* Note: rely on the compile-time option here rather than - the LOADED_HIGH flag. The Qemu kernel loader unconditionally - sets the loadflags to zero. */ -#ifndef __BIG_KERNEL__ - u16 dst_seg, src_seg; - u32 syssize; - - dst_seg = 0x1000 >> 4; - src_seg = 0x10000 >> 4; - syssize = boot_params.hdr.syssize; /* Size in 16-byte paragraphs */ - - while (syssize) { - int paras = (syssize >= 0x1000) ? 0x1000 : syssize; - int dwords = paras << 2; - - asm volatile("pushw %%es ; " - "pushw %%ds ; " - "movw %1,%%es ; " - "movw %2,%%ds ; " - "xorw %%di,%%di ; " - "xorw %%si,%%si ; " - "rep;movsl ; " - "popw %%ds ; " - "popw %%es" - : "+c" (dwords) - : "rm" (dst_seg), "rm" (src_seg) - : "esi", "edi"); - - syssize -= paras; - dst_seg += paras; - src_seg += paras; - } -#endif -} - -/* - * Disable all interrupts at the legacy PIC. - */ -static void mask_all_interrupts(void) -{ - outb(0xff, 0xa1); /* Mask all interrupts on the seconday PIC */ - io_delay(); - outb(0xfb, 0x21); /* Mask all but cascade on the primary PIC */ - io_delay(); -} - -/* - * Reset IGNNE# if asserted in the FPU. - */ -static void reset_coprocessor(void) -{ - outb(0, 0xf0); - io_delay(); - outb(0, 0xf1); - io_delay(); -} - -/* - * Set up the GDT - */ -#define GDT_ENTRY(flags,base,limit) \ - (((u64)(base & 0xff000000) << 32) | \ - ((u64)flags << 40) | \ - ((u64)(limit & 0x00ff0000) << 32) | \ - ((u64)(base & 0x00ffff00) << 16) | \ - ((u64)(limit & 0x0000ffff))) - -struct gdt_ptr { - u16 len; - u32 ptr; -} __attribute__((packed)); - -static void setup_gdt(void) -{ - /* There are machines which are known to not boot with the GDT - being 8-byte unaligned. Intel recommends 16 byte alignment. */ - static const u64 boot_gdt[] __attribute__((aligned(16))) = { - /* CS: code, read/execute, 4 GB, base 0 */ - [GDT_ENTRY_BOOT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff), - /* DS: data, read/write, 4 GB, base 0 */ - [GDT_ENTRY_BOOT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff), - }; - struct gdt_ptr gdt; - - gdt.len = sizeof(boot_gdt)-1; - gdt.ptr = (u32)&boot_gdt + (ds() << 4); - - asm volatile("lgdtl %0" : : "m" (gdt)); -} - -/* - * Set up the IDT - */ -static void setup_idt(void) -{ - static const struct gdt_ptr null_idt = {0, 0}; - asm volatile("lidtl %0" : : "m" (null_idt)); -} - -/* - * Actual invocation sequence - */ -void go_to_protected_mode(void) -{ - /* Hook before leaving real mode, also disables interrupts */ - realmode_switch_hook(); - - /* Move the kernel/setup to their final resting places */ - move_kernel_around(); - - /* Enable the A20 gate */ - if (enable_a20()) { - puts("A20 gate not responding, unable to boot...\n"); - die(); - } - - /* Reset coprocessor (IGNNE#) */ - reset_coprocessor(); - - /* Mask all interrupts in the PIC */ - mask_all_interrupts(); - - /* Actual transition to protected mode... */ - setup_idt(); - setup_gdt(); - protected_mode_jump(boot_params.hdr.code32_start, - (u32)&boot_params + (ds() << 4)); -} diff --git a/arch/i386/boot/pmjump.S b/arch/i386/boot/pmjump.S deleted file mode 100644 index 2e559233725a..000000000000 --- a/arch/i386/boot/pmjump.S +++ /dev/null @@ -1,54 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/pmjump.S - * - * The actual transition into protected mode - */ - -#include <asm/boot.h> -#include <asm/segment.h> - - .text - - .globl protected_mode_jump - .type protected_mode_jump, @function - - .code16 - -/* - * void protected_mode_jump(u32 entrypoint, u32 bootparams); - */ -protected_mode_jump: - xorl %ebx, %ebx # Flag to indicate this is a boot - movl %edx, %esi # Pointer to boot_params table - movl %eax, 2f # Patch ljmpl instruction - jmp 1f # Short jump to flush instruction q. - -1: - movw $__BOOT_DS, %cx - - movl %cr0, %edx - orb $1, %dl # Protected mode (PE) bit - movl %edx, %cr0 - - movw %cx, %ds - movw %cx, %es - movw %cx, %fs - movw %cx, %gs - movw %cx, %ss - - # Jump to the 32-bit entrypoint - .byte 0x66, 0xea # ljmpl opcode -2: .long 0 # offset - .word __BOOT_CS # segment - - .size protected_mode_jump, .-protected_mode_jump diff --git a/arch/i386/boot/printf.c b/arch/i386/boot/printf.c deleted file mode 100644 index 1a09f9309d3c..000000000000 --- a/arch/i386/boot/printf.c +++ /dev/null @@ -1,307 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/printf.c - * - * Oh, it's a waste of space, but oh-so-yummy for debugging. This - * version of printf() does not include 64-bit support. "Live with - * it." - * - */ - -#include "boot.h" - -static int skip_atoi(const char **s) -{ - int i = 0; - - while (isdigit(**s)) - i = i * 10 + *((*s)++) - '0'; - return i; -} - -#define ZEROPAD 1 /* pad with zero */ -#define SIGN 2 /* unsigned/signed long */ -#define PLUS 4 /* show plus */ -#define SPACE 8 /* space if plus */ -#define LEFT 16 /* left justified */ -#define SPECIAL 32 /* 0x */ -#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */ - -#define do_div(n,base) ({ \ -int __res; \ -__res = ((unsigned long) n) % (unsigned) base; \ -n = ((unsigned long) n) / (unsigned) base; \ -__res; }) - -static char *number(char *str, long num, int base, int size, int precision, - int type) -{ - char c, sign, tmp[66]; - const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; - int i; - - if (type & LARGE) - digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; - if (type & LEFT) - type &= ~ZEROPAD; - if (base < 2 || base > 36) - return 0; - c = (type & ZEROPAD) ? '0' : ' '; - sign = 0; - if (type & SIGN) { - if (num < 0) { - sign = '-'; - num = -num; - size--; - } else if (type & PLUS) { - sign = '+'; - size--; - } else if (type & SPACE) { - sign = ' '; - size--; - } - } - if (type & SPECIAL) { - if (base == 16) - size -= 2; - else if (base == 8) - size--; - } - i = 0; - if (num == 0) - tmp[i++] = '0'; - else - while (num != 0) - tmp[i++] = digits[do_div(num, base)]; - if (i > precision) - precision = i; - size -= precision; - if (!(type & (ZEROPAD + LEFT))) - while (size-- > 0) - *str++ = ' '; - if (sign) - *str++ = sign; - if (type & SPECIAL) { - if (base == 8) - *str++ = '0'; - else if (base == 16) { - *str++ = '0'; - *str++ = digits[33]; - } - } - if (!(type & LEFT)) - while (size-- > 0) - *str++ = c; - while (i < precision--) - *str++ = '0'; - while (i-- > 0) - *str++ = tmp[i]; - while (size-- > 0) - *str++ = ' '; - return str; -} - -int vsprintf(char *buf, const char *fmt, va_list args) -{ - int len; - unsigned long num; - int i, base; - char *str; - const char *s; - - int flags; /* flags to number() */ - - int field_width; /* width of output field */ - int precision; /* min. # of digits for integers; max - number of chars for from string */ - int qualifier; /* 'h', 'l', or 'L' for integer fields */ - - for (str = buf; *fmt; ++fmt) { - if (*fmt != '%') { - *str++ = *fmt; - continue; - } - - /* process flags */ - flags = 0; - repeat: - ++fmt; /* this also skips first '%' */ - switch (*fmt) { - case '-': - flags |= LEFT; - goto repeat; - case '+': - flags |= PLUS; - goto repeat; - case ' ': - flags |= SPACE; - goto repeat; - case '#': - flags |= SPECIAL; - goto repeat; - case '0': - flags |= ZEROPAD; - goto repeat; - } - - /* get field width */ - field_width = -1; - if (isdigit(*fmt)) - field_width = skip_atoi(&fmt); - else if (*fmt == '*') { - ++fmt; - /* it's the next argument */ - field_width = va_arg(args, int); - if (field_width < 0) { - field_width = -field_width; - flags |= LEFT; - } - } - - /* get the precision */ - precision = -1; - if (*fmt == '.') { - ++fmt; - if (isdigit(*fmt)) - precision = skip_atoi(&fmt); - else if (*fmt == '*') { - ++fmt; - /* it's the next argument */ - precision = va_arg(args, int); - } - if (precision < 0) - precision = 0; - } - - /* get the conversion qualifier */ - qualifier = -1; - if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') { - qualifier = *fmt; - ++fmt; - } - - /* default base */ - base = 10; - - switch (*fmt) { - case 'c': - if (!(flags & LEFT)) - while (--field_width > 0) - *str++ = ' '; - *str++ = (unsigned char)va_arg(args, int); - while (--field_width > 0) - *str++ = ' '; - continue; - - case 's': - s = va_arg(args, char *); - len = strnlen(s, precision); - - if (!(flags & LEFT)) - while (len < field_width--) - *str++ = ' '; - for (i = 0; i < len; ++i) - *str++ = *s++; - while (len < field_width--) - *str++ = ' '; - continue; - - case 'p': - if (field_width == -1) { - field_width = 2 * sizeof(void *); - flags |= ZEROPAD; - } - str = number(str, - (unsigned long)va_arg(args, void *), 16, - field_width, precision, flags); - continue; - - case 'n': - if (qualifier == 'l') { - long *ip = va_arg(args, long *); - *ip = (str - buf); - } else { - int *ip = va_arg(args, int *); - *ip = (str - buf); - } - continue; - - case '%': - *str++ = '%'; - continue; - - /* integer number formats - set up the flags and "break" */ - case 'o': - base = 8; - break; - - case 'X': - flags |= LARGE; - case 'x': - base = 16; - break; - - case 'd': - case 'i': - flags |= SIGN; - case 'u': - break; - - default: - *str++ = '%'; - if (*fmt) - *str++ = *fmt; - else - --fmt; - continue; - } - if (qualifier == 'l') - num = va_arg(args, unsigned long); - else if (qualifier == 'h') { - num = (unsigned short)va_arg(args, int); - if (flags & SIGN) - num = (short)num; - } else if (flags & SIGN) - num = va_arg(args, int); - else - num = va_arg(args, unsigned int); - str = number(str, num, base, field_width, precision, flags); - } - *str = '\0'; - return str - buf; -} - -int sprintf(char *buf, const char *fmt, ...) -{ - va_list args; - int i; - - va_start(args, fmt); - i = vsprintf(buf, fmt, args); - va_end(args); - return i; -} - -int printf(const char *fmt, ...) -{ - char printf_buf[1024]; - va_list args; - int printed; - - va_start(args, fmt); - printed = vsprintf(printf_buf, fmt, args); - va_end(args); - - puts(printf_buf); - - return printed; -} diff --git a/arch/i386/boot/setup.ld b/arch/i386/boot/setup.ld deleted file mode 100644 index df9234b3a5e0..000000000000 --- a/arch/i386/boot/setup.ld +++ /dev/null @@ -1,54 +0,0 @@ -/* - * setup.ld - * - * Linker script for the i386 setup code - */ -OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") -OUTPUT_ARCH(i386) -ENTRY(_start) - -SECTIONS -{ - . = 0; - .bstext : { *(.bstext) } - .bsdata : { *(.bsdata) } - - . = 497; - .header : { *(.header) } - .inittext : { *(.inittext) } - .initdata : { *(.initdata) } - .text : { *(.text*) } - - . = ALIGN(16); - .rodata : { *(.rodata*) } - - .videocards : { - video_cards = .; - *(.videocards) - video_cards_end = .; - } - - . = ALIGN(16); - .data : { *(.data*) } - - .signature : { - setup_sig = .; - LONG(0x5a5aaa55) - } - - - . = ALIGN(16); - .bss : - { - __bss_start = .; - *(.bss) - __bss_end = .; - } - . = ALIGN(16); - _end = .; - - /DISCARD/ : { *(.note*) } - - . = ASSERT(_end <= 0x8000, "Setup too big!"); - . = ASSERT(hdr == 0x1f1, "The setup header has the wrong offset!"); -} diff --git a/arch/i386/boot/string.c b/arch/i386/boot/string.c deleted file mode 100644 index 481a22097781..000000000000 --- a/arch/i386/boot/string.c +++ /dev/null @@ -1,52 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/string.c - * - * Very basic string functions - */ - -#include "boot.h" - -int strcmp(const char *str1, const char *str2) -{ - const unsigned char *s1 = (const unsigned char *)str1; - const unsigned char *s2 = (const unsigned char *)str2; - int delta = 0; - - while (*s1 || *s2) { - delta = *s2 - *s1; - if (delta) - return delta; - s1++; - s2++; - } - return 0; -} - -size_t strnlen(const char *s, size_t maxlen) -{ - const char *es = s; - while (*es && maxlen) { - es++; - maxlen--; - } - - return (es - s); -} - -unsigned int atou(const char *s) -{ - unsigned int i = 0; - while (isdigit(*s)) - i = i * 10 + (*s++ - '0'); - return i; -} diff --git a/arch/i386/boot/tools/.gitignore b/arch/i386/boot/tools/.gitignore deleted file mode 100644 index 378eac25d311..000000000000 --- a/arch/i386/boot/tools/.gitignore +++ /dev/null @@ -1 +0,0 @@ -build diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c deleted file mode 100644 index 886f47d8a488..000000000000 --- a/arch/i386/boot/tools/build.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1997 Martin Mares - * Copyright (C) 2007 H. Peter Anvin - */ - -/* - * This file builds a disk-image from three different files: - * - * - setup: 8086 machine code, sets up system parm - * - system: 80386 code for actual system - * - * It does some checking that all files are of the correct type, and - * just writes the result to stdout, removing headers and padding to - * the right amount. It also writes some system data to stderr. - */ - -/* - * Changes by tytso to allow root device specification - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - * Cross compiling fixes by Gertjan van Wingerde, July 1996 - * Rewritten by Martin Mares, April 1997 - * Substantially overhauled by H. Peter Anvin, April 2007 - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <stdarg.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/sysmacros.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/mman.h> -#include <asm/boot.h> - -typedef unsigned char u8; -typedef unsigned short u16; -typedef unsigned long u32; - -#define DEFAULT_MAJOR_ROOT 0 -#define DEFAULT_MINOR_ROOT 0 - -/* Minimal number of setup sectors */ -#define SETUP_SECT_MIN 5 -#define SETUP_SECT_MAX 64 - -/* This must be large enough to hold the entire setup */ -u8 buf[SETUP_SECT_MAX*512]; -int is_big_kernel; - -static void die(const char * str, ...) -{ - va_list args; - va_start(args, str); - vfprintf(stderr, str, args); - fputc('\n', stderr); - exit(1); -} - -static void usage(void) -{ - die("Usage: build [-b] setup system [rootdev] [> image]"); -} - -int main(int argc, char ** argv) -{ - unsigned int i, sz, setup_sectors; - int c; - u32 sys_size; - u8 major_root, minor_root; - struct stat sb; - FILE *file; - int fd; - void *kernel; - - if (argc > 2 && !strcmp(argv[1], "-b")) - { - is_big_kernel = 1; - argc--, argv++; - } - if ((argc < 3) || (argc > 4)) - usage(); - if (argc > 3) { - if (!strcmp(argv[3], "CURRENT")) { - if (stat("/", &sb)) { - perror("/"); - die("Couldn't stat /"); - } - major_root = major(sb.st_dev); - minor_root = minor(sb.st_dev); - } else if (strcmp(argv[3], "FLOPPY")) { - if (stat(argv[3], &sb)) { - perror(argv[3]); - die("Couldn't stat root device."); - } - major_root = major(sb.st_rdev); - minor_root = minor(sb.st_rdev); - } else { - major_root = 0; - minor_root = 0; - } - } else { - major_root = DEFAULT_MAJOR_ROOT; - minor_root = DEFAULT_MINOR_ROOT; - } - fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root); - - /* Copy the setup code */ - file = fopen(argv[1], "r"); - if (!file) - die("Unable to open `%s': %m", argv[1]); - c = fread(buf, 1, sizeof(buf), file); - if (ferror(file)) - die("read-error on `setup'"); - if (c < 1024) - die("The setup must be at least 1024 bytes"); - if (buf[510] != 0x55 || buf[511] != 0xaa) - die("Boot block hasn't got boot flag (0xAA55)"); - fclose(file); - - /* Pad unused space with zeros */ - setup_sectors = (c + 511) / 512; - if (setup_sectors < SETUP_SECT_MIN) - setup_sectors = SETUP_SECT_MIN; - i = setup_sectors*512; - memset(buf+c, 0, i-c); - - /* Set the default root device */ - buf[508] = minor_root; - buf[509] = major_root; - - fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i); - - /* Open and stat the kernel file */ - fd = open(argv[2], O_RDONLY); - if (fd < 0) - die("Unable to open `%s': %m", argv[2]); - if (fstat(fd, &sb)) - die("Unable to stat `%s': %m", argv[2]); - sz = sb.st_size; - fprintf (stderr, "System is %d kB\n", (sz+1023)/1024); - kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0); - if (kernel == MAP_FAILED) - die("Unable to mmap '%s': %m", argv[2]); - sys_size = (sz + 15) / 16; - if (!is_big_kernel && sys_size > DEF_SYSSIZE) - die("System is too big. Try using bzImage or modules."); - - /* Patch the setup code with the appropriate size parameters */ - buf[0x1f1] = setup_sectors-1; - buf[0x1f4] = sys_size; - buf[0x1f5] = sys_size >> 8; - buf[0x1f6] = sys_size >> 16; - buf[0x1f7] = sys_size >> 24; - - if (fwrite(buf, 1, i, stdout) != i) - die("Writing setup failed"); - - /* Copy the kernel code */ - if (fwrite(kernel, 1, sz, stdout) != sz) - die("Writing kernel failed"); - close(fd); - - /* Everything is OK */ - return 0; -} diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c deleted file mode 100644 index a8db78736b02..000000000000 --- a/arch/i386/boot/tty.c +++ /dev/null @@ -1,112 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/tty.c - * - * Very simple screen I/O - * XXX: Probably should add very simple serial I/O? - */ - -#include "boot.h" - -/* - * These functions are in .inittext so they can be used to signal - * error during initialization. - */ - -void __attribute__((section(".inittext"))) putchar(int ch) -{ - unsigned char c = ch; - - if (c == '\n') - putchar('\r'); /* \n -> \r\n */ - - /* int $0x10 is known to have bugs involving touching registers - it shouldn't. Be extra conservative... */ - asm volatile("pushal; int $0x10; popal" - : : "b" (0x0007), "c" (0x0001), "a" (0x0e00|ch)); -} - -void __attribute__((section(".inittext"))) puts(const char *str) -{ - int n = 0; - while (*str) { - putchar(*str++); - n++; - } -} - -/* - * Read the CMOS clock through the BIOS, and return the - * seconds in BCD. - */ - -static u8 gettime(void) -{ - u16 ax = 0x0200; - u16 cx, dx; - - asm("int $0x1a" - : "+a" (ax), "=c" (cx), "=d" (dx) - : : "ebx", "esi", "edi"); - - return dx >> 8; -} - -/* - * Read from the keyboard - */ -int getchar(void) -{ - u16 ax = 0; - asm("int $0x16" : "+a" (ax)); - - return ax & 0xff; -} - -static int kbd_pending(void) -{ - u8 pending; - asm("int $0x16; setnz %0" - : "=rm" (pending) - : "a" (0x0100)); - return pending; -} - -void kbd_flush(void) -{ - for (;;) { - if (!kbd_pending()) - break; - getchar(); - } -} - -int getchar_timeout(void) -{ - int cnt = 30; - int t0, t1; - - t0 = gettime(); - - while (cnt) { - if (kbd_pending()) - return getchar(); - - t1 = gettime(); - if (t0 != t1) { - cnt--; - t0 = t1; - } - } - - return 0; /* Timeout! */ -} diff --git a/arch/i386/boot/version.c b/arch/i386/boot/version.c deleted file mode 100644 index c61462f7d9a7..000000000000 --- a/arch/i386/boot/version.c +++ /dev/null @@ -1,23 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/version.c - * - * Kernel version string - */ - -#include "boot.h" -#include <linux/utsrelease.h> -#include <linux/compile.h> - -const char kernel_version[] = - UTS_RELEASE " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") " - UTS_VERSION; diff --git a/arch/i386/boot/vesa.h b/arch/i386/boot/vesa.h deleted file mode 100644 index ff5b73cd406f..000000000000 --- a/arch/i386/boot/vesa.h +++ /dev/null @@ -1,79 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved - * - * 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, Inc., 53 Temple Place Ste 330, - * Boston MA 02111-1307, USA; either version 2 of the License, or - * (at your option) any later version; incorporated herein by reference. - * - * ----------------------------------------------------------------------- */ - -#ifndef BOOT_VESA_H -#define BOOT_VESA_H - -typedef struct { - u16 off, seg; -} far_ptr; - -/* VESA General Information table */ -struct vesa_general_info { - u32 signature; /* 0 Magic number = "VESA" */ - u16 version; /* 4 */ - far_ptr vendor_string; /* 6 */ - u32 capabilities; /* 10 */ - far_ptr video_mode_ptr; /* 14 */ - u16 total_memory; /* 18 */ - - u16 oem_software_rev; /* 20 */ - far_ptr oem_vendor_name_ptr; /* 22 */ - far_ptr oem_product_name_ptr; /* 26 */ - far_ptr oem_product_rev_ptr; /* 30 */ - - u8 reserved[222]; /* 34 */ - u8 oem_data[256]; /* 256 */ -} __attribute__ ((packed)); - -#define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) -#define VBE2_MAGIC ('V' + ('B' << 8) + ('E' << 16) + ('2' << 24)) - -struct vesa_mode_info { - u16 mode_attr; /* 0 */ - u8 win_attr[2]; /* 2 */ - u16 win_grain; /* 4 */ - u16 win_size; /* 6 */ - u16 win_seg[2]; /* 8 */ - far_ptr win_scheme; /* 12 */ - u16 logical_scan; /* 16 */ - - u16 h_res; /* 18 */ - u16 v_res; /* 20 */ - u8 char_width; /* 22 */ - u8 char_height; /* 23 */ - u8 memory_planes; /* 24 */ - u8 bpp; /* 25 */ - u8 banks; /* 26 */ - u8 memory_layout; /* 27 */ - u8 bank_size; /* 28 */ - u8 image_planes; /* 29 */ - u8 page_function; /* 30 */ - - u8 rmask; /* 31 */ - u8 rpos; /* 32 */ - u8 gmask; /* 33 */ - u8 gpos; /* 34 */ - u8 bmask; /* 35 */ - u8 bpos; /* 36 */ - u8 resv_mask; /* 37 */ - u8 resv_pos; /* 38 */ - u8 dcm_info; /* 39 */ - - u32 lfb_ptr; /* 40 Linear frame buffer address */ - u32 offscreen_ptr; /* 44 Offscreen memory address */ - u16 offscreen_size; /* 48 */ - - u8 reserved[206]; /* 50 */ -} __attribute__ ((packed)); - -#endif /* LIB_SYS_VESA_H */ diff --git a/arch/i386/boot/video-bios.c b/arch/i386/boot/video-bios.c deleted file mode 100644 index afea46c500cc..000000000000 --- a/arch/i386/boot/video-bios.c +++ /dev/null @@ -1,125 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/video-bios.c - * - * Standard video BIOS modes - * - * We have two options for this; silent and scanned. - */ - -#include "boot.h" -#include "video.h" - -__videocard video_bios; - -/* Set a conventional BIOS mode */ -static int set_bios_mode(u8 mode); - -static int bios_set_mode(struct mode_info *mi) -{ - return set_bios_mode(mi->mode - VIDEO_FIRST_BIOS); -} - -static int set_bios_mode(u8 mode) -{ - u16 ax; - u8 new_mode; - - ax = mode; /* AH=0x00 Set Video Mode */ - asm volatile(INT10 - : "+a" (ax) - : : "ebx", "ecx", "edx", "esi", "edi"); - - ax = 0x0f00; /* Get Current Video Mode */ - asm volatile(INT10 - : "+a" (ax) - : : "ebx", "ecx", "edx", "esi", "edi"); - - do_restore = 1; /* Assume video contents was lost */ - new_mode = ax & 0x7f; /* Not all BIOSes are clean with the top bit */ - - if (new_mode == mode) - return 0; /* Mode change OK */ - - if (new_mode != boot_params.screen_info.orig_video_mode) { - /* Mode setting failed, but we didn't end up where we - started. That's bad. Try to revert to the original - video mode. */ - ax = boot_params.screen_info.orig_video_mode; - asm volatile(INT10 - : "+a" (ax) - : : "ebx", "ecx", "edx", "esi", "edi"); - } - return -1; -} - -static int bios_probe(void) -{ - u8 mode; - u8 saved_mode = boot_params.screen_info.orig_video_mode; - u16 crtc; - struct mode_info *mi; - int nmodes = 0; - - if (adapter != ADAPTER_EGA && adapter != ADAPTER_VGA) - return 0; - - set_fs(0); - crtc = vga_crtc(); - - video_bios.modes = GET_HEAP(struct mode_info, 0); - - for (mode = 0x14; mode <= 0x7f; mode++) { - if (heap_free() < sizeof(struct mode_info)) - break; - - if (mode_defined(VIDEO_FIRST_BIOS+mode)) - continue; - - if (set_bios_mode(mode)) - continue; - - /* Try to verify that it's a text mode. */ - - /* Attribute Controller: make graphics controller disabled */ - if (in_idx(0x3c0, 0x10) & 0x01) - continue; - - /* Graphics Controller: verify Alpha addressing enabled */ - if (in_idx(0x3ce, 0x06) & 0x01) - continue; - - /* CRTC cursor location low should be zero(?) */ - if (in_idx(crtc, 0x0f)) - continue; - - mi = GET_HEAP(struct mode_info, 1); - mi->mode = VIDEO_FIRST_BIOS+mode; - mi->x = rdfs16(0x44a); - mi->y = rdfs8(0x484)+1; - nmodes++; - } - - set_bios_mode(saved_mode); - - return nmodes; -} - -__videocard video_bios = -{ - .card_name = "BIOS (scanned)", - .probe = bios_probe, - .set_mode = bios_set_mode, - .unsafe = 1, - .xmode_first = VIDEO_FIRST_BIOS, - .xmode_n = 0x80, -}; diff --git a/arch/i386/boot/video-vesa.c b/arch/i386/boot/video-vesa.c deleted file mode 100644 index e6aa9eb8d93a..000000000000 --- a/arch/i386/boot/video-vesa.c +++ /dev/null @@ -1,284 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/video-vesa.c - * - * VESA text modes - */ - -#include "boot.h" -#include "video.h" -#include "vesa.h" - -/* VESA information */ -static struct vesa_general_info vginfo; -static struct vesa_mode_info vminfo; - -__videocard video_vesa; - -static void vesa_store_mode_params_graphics(void); - -static int vesa_probe(void) -{ -#if defined(CONFIG_VIDEO_VESA) || defined(CONFIG_FIRMWARE_EDID) - u16 ax; - u16 mode; - addr_t mode_ptr; - struct mode_info *mi; - int nmodes = 0; - - video_vesa.modes = GET_HEAP(struct mode_info, 0); - - vginfo.signature = VBE2_MAGIC; - - /* Optimistically assume a VESA BIOS is register-clean... */ - ax = 0x4f00; - asm("int $0x10" : "+a" (ax), "=m" (vginfo) : "D" (&vginfo)); - - if (ax != 0x004f || - vginfo.signature != VESA_MAGIC || - vginfo.version < 0x0102) - return 0; /* Not present */ -#endif /* CONFIG_VIDEO_VESA || CONFIG_FIRMWARE_EDID */ -#ifdef CONFIG_VIDEO_VESA - set_fs(vginfo.video_mode_ptr.seg); - mode_ptr = vginfo.video_mode_ptr.off; - - while ((mode = rdfs16(mode_ptr)) != 0xffff) { - mode_ptr += 2; - - if (heap_free() < sizeof(struct mode_info)) - break; /* Heap full, can't save mode info */ - - if (mode & ~0x1ff) - continue; - - memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ - - ax = 0x4f01; - asm("int $0x10" - : "+a" (ax), "=m" (vminfo) - : "c" (mode), "D" (&vminfo)); - - if (ax != 0x004f) - continue; - - if ((vminfo.mode_attr & 0x15) == 0x05) { - /* Text Mode, TTY BIOS supported, - supported by hardware */ - mi = GET_HEAP(struct mode_info, 1); - mi->mode = mode + VIDEO_FIRST_VESA; - mi->x = vminfo.h_res; - mi->y = vminfo.v_res; - nmodes++; - } else if ((vminfo.mode_attr & 0x99) == 0x99) { -#ifdef CONFIG_FB - /* Graphics mode, color, linear frame buffer - supported -- register the mode but hide from - the menu. Only do this if framebuffer is - configured, however, otherwise the user will - be left without a screen. */ - mi = GET_HEAP(struct mode_info, 1); - mi->mode = mode + VIDEO_FIRST_VESA; - mi->x = mi->y = 0; - nmodes++; -#endif - } - } - - return nmodes; -#else - return 0; -#endif /* CONFIG_VIDEO_VESA */ -} - -static int vesa_set_mode(struct mode_info *mode) -{ - u16 ax; - int is_graphic; - u16 vesa_mode = mode->mode - VIDEO_FIRST_VESA; - - memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ - - ax = 0x4f01; - asm("int $0x10" - : "+a" (ax), "=m" (vminfo) - : "c" (vesa_mode), "D" (&vminfo)); - - if (ax != 0x004f) - return -1; - - if ((vminfo.mode_attr & 0x15) == 0x05) { - /* It's a supported text mode */ - is_graphic = 0; - } else if ((vminfo.mode_attr & 0x99) == 0x99) { - /* It's a graphics mode with linear frame buffer */ - is_graphic = 1; - vesa_mode |= 0x4000; /* Request linear frame buffer */ - } else { - return -1; /* Invalid mode */ - } - - - ax = 0x4f02; - asm volatile("int $0x10" - : "+a" (ax) - : "b" (vesa_mode), "D" (0)); - - if (ax != 0x004f) - return -1; - - graphic_mode = is_graphic; - if (!is_graphic) { - /* Text mode */ - force_x = mode->x; - force_y = mode->y; - do_restore = 1; - } else { - /* Graphics mode */ - vesa_store_mode_params_graphics(); - } - - return 0; -} - - -/* Switch DAC to 8-bit mode */ -static void vesa_dac_set_8bits(void) -{ - u8 dac_size = 6; - - /* If possible, switch the DAC to 8-bit mode */ - if (vginfo.capabilities & 1) { - u16 ax, bx; - - ax = 0x4f08; - bx = 0x0800; - asm volatile(INT10 - : "+a" (ax), "+b" (bx) - : : "ecx", "edx", "esi", "edi"); - - if (ax == 0x004f) - dac_size = bx >> 8; - } - - /* Set the color sizes to the DAC size, and offsets to 0 */ - boot_params.screen_info.red_size = dac_size; - boot_params.screen_info.green_size = dac_size; - boot_params.screen_info.blue_size = dac_size; - boot_params.screen_info.rsvd_size = dac_size; - - boot_params.screen_info.red_pos = 0; - boot_params.screen_info.green_pos = 0; - boot_params.screen_info.blue_pos = 0; - boot_params.screen_info.rsvd_pos = 0; -} - -/* Save the VESA protected mode info */ -static void vesa_store_pm_info(void) -{ - u16 ax, bx, di, es; - - ax = 0x4f0a; - bx = di = 0; - asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es" - : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di) - : : "ecx", "esi"); - - if (ax != 0x004f) - return; - - boot_params.screen_info.vesapm_seg = es; - boot_params.screen_info.vesapm_off = di; -} - -/* - * Save video mode parameters for graphics mode - */ -static void vesa_store_mode_params_graphics(void) -{ - /* Tell the kernel we're in VESA graphics mode */ - boot_params.screen_info.orig_video_isVGA = 0x23; - - /* Mode parameters */ - boot_params.screen_info.vesa_attributes = vminfo.mode_attr; - boot_params.screen_info.lfb_linelength = vminfo.logical_scan; - boot_params.screen_info.lfb_width = vminfo.h_res; - boot_params.screen_info.lfb_height = vminfo.v_res; - boot_params.screen_info.lfb_depth = vminfo.bpp; - boot_params.screen_info.pages = vminfo.image_planes; - boot_params.screen_info.lfb_base = vminfo.lfb_ptr; - memcpy(&boot_params.screen_info.red_size, - &vminfo.rmask, 8); - - /* General parameters */ - boot_params.screen_info.lfb_size = vginfo.total_memory; - - if (vminfo.bpp <= 8) - vesa_dac_set_8bits(); - - vesa_store_pm_info(); -} - -/* - * Save EDID information for the kernel; this is invoked, separately, - * after mode-setting. - */ -void vesa_store_edid(void) -{ -#ifdef CONFIG_FIRMWARE_EDID - u16 ax, bx, cx, dx, di; - - /* Apparently used as a nonsense token... */ - memset(&boot_params.edid_info, 0x13, sizeof boot_params.edid_info); - - if (vginfo.version < 0x0200) - return; /* EDID requires VBE 2.0+ */ - - ax = 0x4f15; /* VBE DDC */ - bx = 0x0000; /* Report DDC capabilities */ - cx = 0; /* Controller 0 */ - di = 0; /* ES:DI must be 0 by spec */ - - /* Note: The VBE DDC spec is different from the main VESA spec; - we genuinely have to assume all registers are destroyed here. */ - - asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es" - : "+a" (ax), "+b" (bx) - : "c" (cx), "D" (di) - : "esi"); - - if (ax != 0x004f) - return; /* No EDID */ - - /* BH = time in seconds to transfer EDD information */ - /* BL = DDC level supported */ - - ax = 0x4f15; /* VBE DDC */ - bx = 0x0001; /* Read EDID */ - cx = 0; /* Controller 0 */ - dx = 0; /* EDID block number */ - di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */ - asm(INT10 - : "+a" (ax), "+b" (bx), "+d" (dx) - : "c" (cx), "D" (di) - : "esi"); -#endif /* CONFIG_FIRMWARE_EDID */ -} - -__videocard video_vesa = -{ - .card_name = "VESA", - .probe = vesa_probe, - .set_mode = vesa_set_mode, - .xmode_first = VIDEO_FIRST_VESA, - .xmode_n = 0x200, -}; diff --git a/arch/i386/boot/video-vga.c b/arch/i386/boot/video-vga.c deleted file mode 100644 index 700d09a9c9b3..000000000000 --- a/arch/i386/boot/video-vga.c +++ /dev/null @@ -1,260 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/video-vga.c - * - * Common all-VGA modes - */ - -#include "boot.h" -#include "video.h" - -static struct mode_info vga_modes[] = { - { VIDEO_80x25, 80, 25 }, - { VIDEO_8POINT, 80, 50 }, - { VIDEO_80x43, 80, 43 }, - { VIDEO_80x28, 80, 28 }, - { VIDEO_80x30, 80, 30 }, - { VIDEO_80x34, 80, 34 }, - { VIDEO_80x60, 80, 60 }, -}; - -static struct mode_info ega_modes[] = { - { VIDEO_80x25, 80, 25 }, - { VIDEO_8POINT, 80, 43 }, -}; - -static struct mode_info cga_modes[] = { - { VIDEO_80x25, 80, 25 }, -}; - -__videocard video_vga; - -/* Set basic 80x25 mode */ -static u8 vga_set_basic_mode(void) -{ - u16 ax; - u8 rows; - u8 mode; - -#ifdef CONFIG_VIDEO_400_HACK - if (adapter >= ADAPTER_VGA) { - asm(INT10 - : : "a" (0x1202), "b" (0x0030) - : "ecx", "edx", "esi", "edi"); - } -#endif - - ax = 0x0f00; - asm(INT10 - : "+a" (ax) - : : "ebx", "ecx", "edx", "esi", "edi"); - - mode = (u8)ax; - - set_fs(0); - rows = rdfs8(0x484); /* rows minus one */ - -#ifndef CONFIG_VIDEO_400_HACK - if ((ax == 0x5003 || ax == 0x5007) && - (rows == 0 || rows == 24)) - return mode; -#endif - - if (mode != 3 && mode != 7) - mode = 3; - - /* Set the mode */ - asm volatile(INT10 - : : "a" (mode) - : "ebx", "ecx", "edx", "esi", "edi"); - do_restore = 1; - return mode; -} - -static void vga_set_8font(void) -{ - /* Set 8x8 font - 80x43 on EGA, 80x50 on VGA */ - - /* Set 8x8 font */ - asm volatile(INT10 : : "a" (0x1112), "b" (0)); - - /* Use alternate print screen */ - asm volatile(INT10 : : "a" (0x1200), "b" (0x20)); - - /* Turn off cursor emulation */ - asm volatile(INT10 : : "a" (0x1201), "b" (0x34)); - - /* Cursor is scan lines 6-7 */ - asm volatile(INT10 : : "a" (0x0100), "c" (0x0607)); -} - -static void vga_set_14font(void) -{ - /* Set 9x14 font - 80x28 on VGA */ - - /* Set 9x14 font */ - asm volatile(INT10 : : "a" (0x1111), "b" (0)); - - /* Turn off cursor emulation */ - asm volatile(INT10 : : "a" (0x1201), "b" (0x34)); - - /* Cursor is scan lines 11-12 */ - asm volatile(INT10 : : "a" (0x0100), "c" (0x0b0c)); -} - -static void vga_set_80x43(void) -{ - /* Set 80x43 mode on VGA (not EGA) */ - - /* Set 350 scans */ - asm volatile(INT10 : : "a" (0x1201), "b" (0x30)); - - /* Reset video mode */ - asm volatile(INT10 : : "a" (0x0003)); - - vga_set_8font(); -} - -/* I/O address of the VGA CRTC */ -u16 vga_crtc(void) -{ - return (inb(0x3cc) & 1) ? 0x3d4 : 0x3b4; -} - -static void vga_set_480_scanlines(int end) -{ - u16 crtc; - u8 csel; - - crtc = vga_crtc(); - - out_idx(0x0c, crtc, 0x11); /* Vertical sync end, unlock CR0-7 */ - out_idx(0x0b, crtc, 0x06); /* Vertical total */ - out_idx(0x3e, crtc, 0x07); /* Vertical overflow */ - out_idx(0xea, crtc, 0x10); /* Vertical sync start */ - out_idx(end, crtc, 0x12); /* Vertical display end */ - out_idx(0xe7, crtc, 0x15); /* Vertical blank start */ - out_idx(0x04, crtc, 0x16); /* Vertical blank end */ - csel = inb(0x3cc); - csel &= 0x0d; - csel |= 0xe2; - outb(csel, 0x3cc); -} - -static void vga_set_80x30(void) -{ - vga_set_480_scanlines(0xdf); -} - -static void vga_set_80x34(void) -{ - vga_set_14font(); - vga_set_480_scanlines(0xdb); -} - -static void vga_set_80x60(void) -{ - vga_set_8font(); - vga_set_480_scanlines(0xdf); -} - -static int vga_set_mode(struct mode_info *mode) -{ - /* Set the basic mode */ - vga_set_basic_mode(); - - /* Override a possibly broken BIOS */ - force_x = mode->x; - force_y = mode->y; - - switch (mode->mode) { - case VIDEO_80x25: - break; - case VIDEO_8POINT: - vga_set_8font(); - break; - case VIDEO_80x43: - vga_set_80x43(); - break; - case VIDEO_80x28: - vga_set_14font(); - break; - case VIDEO_80x30: - vga_set_80x30(); - break; - case VIDEO_80x34: - vga_set_80x34(); - break; - case VIDEO_80x60: - vga_set_80x60(); - break; - } - - return 0; -} - -/* - * Note: this probe includes basic information required by all - * systems. It should be executed first, by making sure - * video-vga.c is listed first in the Makefile. - */ -static int vga_probe(void) -{ - static const char *card_name[] = { - "CGA/MDA/HGC", "EGA", "VGA" - }; - static struct mode_info *mode_lists[] = { - cga_modes, - ega_modes, - vga_modes, - }; - static int mode_count[] = { - sizeof(cga_modes)/sizeof(struct mode_info), - sizeof(ega_modes)/sizeof(struct mode_info), - sizeof(vga_modes)/sizeof(struct mode_info), - }; - u8 vga_flag; - - asm(INT10 - : "=b" (boot_params.screen_info.orig_video_ega_bx) - : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */ - : "ecx", "edx", "esi", "edi"); - - /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */ - if ((u8)boot_params.screen_info.orig_video_ega_bx != 0x10) { - /* EGA/VGA */ - asm(INT10 - : "=a" (vga_flag) - : "a" (0x1a00) - : "ebx", "ecx", "edx", "esi", "edi"); - - if (vga_flag == 0x1a) { - adapter = ADAPTER_VGA; - boot_params.screen_info.orig_video_isVGA = 1; - } else { - adapter = ADAPTER_EGA; - } - } else { - adapter = ADAPTER_CGA; - } - - video_vga.modes = mode_lists[adapter]; - video_vga.card_name = card_name[adapter]; - return mode_count[adapter]; -} - -__videocard video_vga = -{ - .card_name = "VGA", - .probe = vga_probe, - .set_mode = vga_set_mode, -}; diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c deleted file mode 100644 index 3bb3573cd6a1..000000000000 --- a/arch/i386/boot/video.c +++ /dev/null @@ -1,456 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/video.c - * - * Select video mode - */ - -#include "boot.h" -#include "video.h" -#include "vesa.h" - -/* - * Mode list variables - */ -static struct card_info cards[]; /* List of cards to probe for */ - -/* - * Common variables - */ -int adapter; /* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */ -u16 video_segment; -int force_x, force_y; /* Don't query the BIOS for cols/rows */ - -int do_restore = 0; /* Screen contents changed during mode flip */ -int graphic_mode; /* Graphic mode with linear frame buffer */ - -static void store_cursor_position(void) -{ - u16 curpos; - u16 ax, bx; - - ax = 0x0300; - bx = 0; - asm(INT10 - : "=d" (curpos), "+a" (ax), "+b" (bx) - : : "ecx", "esi", "edi"); - - boot_params.screen_info.orig_x = curpos; - boot_params.screen_info.orig_y = curpos >> 8; -} - -static void store_video_mode(void) -{ - u16 ax, page; - - /* N.B.: the saving of the video page here is a bit silly, - since we pretty much assume page 0 everywhere. */ - ax = 0x0f00; - asm(INT10 - : "+a" (ax), "=b" (page) - : : "ecx", "edx", "esi", "edi"); - - /* Not all BIOSes are clean with respect to the top bit */ - boot_params.screen_info.orig_video_mode = ax & 0x7f; - boot_params.screen_info.orig_video_page = page; -} - -/* - * Store the video mode parameters for later usage by the kernel. - * This is done by asking the BIOS except for the rows/columns - * parameters in the default 80x25 mode -- these are set directly, - * because some very obscure BIOSes supply insane values. - */ -static void store_mode_params(void) -{ - u16 font_size; - int x, y; - - /* For graphics mode, it is up to the mode-setting driver - (currently only video-vesa.c) to store the parameters */ - if (graphic_mode) - return; - - store_cursor_position(); - store_video_mode(); - - if (boot_params.screen_info.orig_video_mode == 0x07) { - /* MDA, HGC, or VGA in monochrome mode */ - video_segment = 0xb000; - } else { - /* CGA, EGA, VGA and so forth */ - video_segment = 0xb800; - } - - set_fs(0); - font_size = rdfs16(0x485); /* Font size, BIOS area */ - boot_params.screen_info.orig_video_points = font_size; - - x = rdfs16(0x44a); - y = (adapter == ADAPTER_CGA) ? 25 : rdfs8(0x484)+1; - - if (force_x) - x = force_x; - if (force_y) - y = force_y; - - boot_params.screen_info.orig_video_cols = x; - boot_params.screen_info.orig_video_lines = y; -} - -/* Probe the video drivers and have them generate their mode lists. */ -static void probe_cards(int unsafe) -{ - struct card_info *card; - static u8 probed[2]; - - if (probed[unsafe]) - return; - - probed[unsafe] = 1; - - for (card = video_cards; card < video_cards_end; card++) { - if (card->unsafe == unsafe) { - if (card->probe) - card->nmodes = card->probe(); - else - card->nmodes = 0; - } - } -} - -/* Test if a mode is defined */ -int mode_defined(u16 mode) -{ - struct card_info *card; - struct mode_info *mi; - int i; - - for (card = video_cards; card < video_cards_end; card++) { - mi = card->modes; - for (i = 0; i < card->nmodes; i++, mi++) { - if (mi->mode == mode) - return 1; - } - } - - return 0; -} - -/* Set mode (without recalc) */ -static int raw_set_mode(u16 mode) -{ - int nmode, i; - struct card_info *card; - struct mode_info *mi; - - /* Drop the recalc bit if set */ - mode &= ~VIDEO_RECALC; - - /* Scan for mode based on fixed ID, position, or resolution */ - nmode = 0; - for (card = video_cards; card < video_cards_end; card++) { - mi = card->modes; - for (i = 0; i < card->nmodes; i++, mi++) { - int visible = mi->x || mi->y; - - if ((mode == nmode && visible) || - mode == mi->mode || - mode == (mi->y << 8)+mi->x) - return card->set_mode(mi); - - if (visible) - nmode++; - } - } - - /* Nothing found? Is it an "exceptional" (unprobed) mode? */ - for (card = video_cards; card < video_cards_end; card++) { - if (mode >= card->xmode_first && - mode < card->xmode_first+card->xmode_n) { - struct mode_info mix; - mix.mode = mode; - mix.x = mix.y = 0; - return card->set_mode(&mix); - } - } - - /* Otherwise, failure... */ - return -1; -} - -/* - * Recalculate the vertical video cutoff (hack!) - */ -static void vga_recalc_vertical(void) -{ - unsigned int font_size, rows; - u16 crtc; - u8 ov; - - set_fs(0); - font_size = rdfs8(0x485); /* BIOS: font size (pixels) */ - rows = force_y ? force_y : rdfs8(0x484)+1; /* Text rows */ - - rows *= font_size; /* Visible scan lines */ - rows--; /* ... minus one */ - - crtc = vga_crtc(); - - out_idx((u8)rows, crtc, 0x12); /* Lower height register */ - ov = in_idx(crtc, 0x07); /* Overflow register */ - ov &= 0xbd; - ov |= (rows >> (8-1)) & 0x02; - ov |= (rows >> (9-6)) & 0x40; - out_idx(ov, crtc, 0x07); -} - -/* Set mode (with recalc if specified) */ -static int set_mode(u16 mode) -{ - int rv; - - /* Very special mode numbers... */ - if (mode == VIDEO_CURRENT_MODE) - return 0; /* Nothing to do... */ - else if (mode == NORMAL_VGA) - mode = VIDEO_80x25; - else if (mode == EXTENDED_VGA) - mode = VIDEO_8POINT; - - rv = raw_set_mode(mode); - if (rv) - return rv; - - if (mode & VIDEO_RECALC) - vga_recalc_vertical(); - - return 0; -} - -static unsigned int get_entry(void) -{ - char entry_buf[4]; - int i, len = 0; - int key; - unsigned int v; - - do { - key = getchar(); - - if (key == '\b') { - if (len > 0) { - puts("\b \b"); - len--; - } - } else if ((key >= '0' && key <= '9') || - (key >= 'A' && key <= 'Z') || - (key >= 'a' && key <= 'z')) { - if (len < sizeof entry_buf) { - entry_buf[len++] = key; - putchar(key); - } - } - } while (key != '\r'); - putchar('\n'); - - if (len == 0) - return VIDEO_CURRENT_MODE; /* Default */ - - v = 0; - for (i = 0; i < len; i++) { - v <<= 4; - key = entry_buf[i] | 0x20; - v += (key > '9') ? key-'a'+10 : key-'0'; - } - - return v; -} - -static void display_menu(void) -{ - struct card_info *card; - struct mode_info *mi; - char ch; - int i; - - puts("Mode: COLSxROWS:\n"); - - ch = '0'; - for (card = video_cards; card < video_cards_end; card++) { - mi = card->modes; - for (i = 0; i < card->nmodes; i++, mi++) { - int visible = mi->x && mi->y; - u16 mode_id = mi->mode ? mi->mode : - (mi->y << 8)+mi->x; - - if (!visible) - continue; /* Hidden mode */ - - printf("%c %04X %3dx%-3d %s\n", - ch, mode_id, mi->x, mi->y, card->card_name); - - if (ch == '9') - ch = 'a'; - else if (ch == 'z' || ch == ' ') - ch = ' '; /* Out of keys... */ - else - ch++; - } - } -} - -#define H(x) ((x)-'a'+10) -#define SCAN ((H('s')<<12)+(H('c')<<8)+(H('a')<<4)+H('n')) - -static unsigned int mode_menu(void) -{ - int key; - unsigned int sel; - - puts("Press <ENTER> to see video modes available, " - "<SPACE> to continue, or wait 30 sec\n"); - - kbd_flush(); - while (1) { - key = getchar_timeout(); - if (key == ' ' || key == 0) - return VIDEO_CURRENT_MODE; /* Default */ - if (key == '\r') - break; - putchar('\a'); /* Beep! */ - } - - - for (;;) { - display_menu(); - - puts("Enter a video mode or \"scan\" to scan for " - "additional modes: "); - sel = get_entry(); - if (sel != SCAN) - return sel; - - probe_cards(1); - } -} - -#ifdef CONFIG_VIDEO_RETAIN -/* Save screen content to the heap */ -struct saved_screen { - int x, y; - int curx, cury; - u16 *data; -} saved; - -static void save_screen(void) -{ - /* Should be called after store_mode_params() */ - saved.x = boot_params.screen_info.orig_video_cols; - saved.y = boot_params.screen_info.orig_video_lines; - saved.curx = boot_params.screen_info.orig_x; - saved.cury = boot_params.screen_info.orig_y; - - if (heap_free() < saved.x*saved.y*sizeof(u16)+512) - return; /* Not enough heap to save the screen */ - - saved.data = GET_HEAP(u16, saved.x*saved.y); - - set_fs(video_segment); - copy_from_fs(saved.data, 0, saved.x*saved.y*sizeof(u16)); -} - -static void restore_screen(void) -{ - /* Should be called after store_mode_params() */ - int xs = boot_params.screen_info.orig_video_cols; - int ys = boot_params.screen_info.orig_video_lines; - int y; - addr_t dst = 0; - u16 *src = saved.data; - u16 ax, bx, dx; - - if (graphic_mode) - return; /* Can't restore onto a graphic mode */ - - if (!src) - return; /* No saved screen contents */ - - /* Restore screen contents */ - - set_fs(video_segment); - for (y = 0; y < ys; y++) { - int npad; - - if (y < saved.y) { - int copy = (xs < saved.x) ? xs : saved.x; - copy_to_fs(dst, src, copy*sizeof(u16)); - dst += copy*sizeof(u16); - src += saved.x; - npad = (xs < saved.x) ? 0 : xs-saved.x; - } else { - npad = xs; - } - - /* Writes "npad" blank characters to - video_segment:dst and advances dst */ - asm volatile("pushw %%es ; " - "movw %2,%%es ; " - "shrw %%cx ; " - "jnc 1f ; " - "stosw \n\t" - "1: rep;stosl ; " - "popw %%es" - : "+D" (dst), "+c" (npad) - : "bdSm" (video_segment), - "a" (0x07200720)); - } - - /* Restore cursor position */ - ax = 0x0200; /* Set cursor position */ - bx = 0; /* Page number (<< 8) */ - dx = (saved.cury << 8)+saved.curx; - asm volatile(INT10 - : "+a" (ax), "+b" (bx), "+d" (dx) - : : "ecx", "esi", "edi"); -} -#else -#define save_screen() ((void)0) -#define restore_screen() ((void)0) -#endif - -void set_video(void) -{ - u16 mode = boot_params.hdr.vid_mode; - - RESET_HEAP(); - - store_mode_params(); - save_screen(); - probe_cards(0); - - for (;;) { - if (mode == ASK_VGA) - mode = mode_menu(); - - if (!set_mode(mode)) - break; - - printf("Undefined video mode number: %x\n", mode); - mode = ASK_VGA; - } - vesa_store_edid(); - store_mode_params(); - - if (do_restore) - restore_screen(); -} diff --git a/arch/i386/boot/video.h b/arch/i386/boot/video.h deleted file mode 100644 index 29eca1710b2c..000000000000 --- a/arch/i386/boot/video.h +++ /dev/null @@ -1,145 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/video.h - * - * Header file for the real-mode video probing code - */ - -#ifndef BOOT_VIDEO_H -#define BOOT_VIDEO_H - -#include <linux/types.h> - -/* Enable autodetection of SVGA adapters and modes. */ -#undef CONFIG_VIDEO_SVGA - -/* Enable autodetection of VESA modes */ -#define CONFIG_VIDEO_VESA - -/* Retain screen contents when switching modes */ -#define CONFIG_VIDEO_RETAIN - -/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */ -#undef CONFIG_VIDEO_400_HACK - -/* 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 - -/* Special video modes */ -#define VIDEO_FIRST_SPECIAL 0x0f00 -#define VIDEO_80x25 0x0f00 -#define VIDEO_8POINT 0x0f01 -#define VIDEO_80x43 0x0f02 -#define VIDEO_80x28 0x0f03 -#define VIDEO_CURRENT_MODE 0x0f04 -#define VIDEO_80x30 0x0f05 -#define VIDEO_80x34 0x0f06 -#define VIDEO_80x60 0x0f07 -#define VIDEO_GFX_HACK 0x0f08 -#define VIDEO_LAST_SPECIAL 0x0f09 - -/* Video modes given by resolution */ -#define VIDEO_FIRST_RESOLUTION 0x1000 - -/* The "recalculate timings" flag */ -#define VIDEO_RECALC 0x8000 - -/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ -#ifdef CONFIG_VIDEO_RETAIN -void store_screen(void); -#define DO_STORE() store_screen() -#else -#define DO_STORE() ((void)0) -#endif /* CONFIG_VIDEO_RETAIN */ - -/* - * Mode table structures - */ - -struct mode_info { - u16 mode; /* Mode number (vga= style) */ - u8 x, y; /* Width, height */ -}; - -struct card_info { - const char *card_name; - int (*set_mode)(struct mode_info *mode); - int (*probe)(void); - struct mode_info *modes; - int nmodes; /* Number of probed modes so far */ - int unsafe; /* Probing is unsafe, only do after "scan" */ - u16 xmode_first; /* Unprobed modes to try to call anyway */ - u16 xmode_n; /* Size of unprobed mode range */ -}; - -#define __videocard struct card_info __attribute__((section(".videocards"))) -extern struct card_info video_cards[], video_cards_end[]; - -int mode_defined(u16 mode); /* video.c */ - -/* Basic video information */ -#define ADAPTER_CGA 0 /* CGA/MDA/HGC */ -#define ADAPTER_EGA 1 -#define ADAPTER_VGA 2 - -extern int adapter; -extern u16 video_segment; -extern int force_x, force_y; /* Don't query the BIOS for cols/rows */ -extern int do_restore; /* Restore screen contents */ -extern int graphic_mode; /* Graphics mode with linear frame buffer */ - -/* - * int $0x10 is notorious for touching registers it shouldn't. - * gcc doesn't like %ebp being clobbered, so define it as a push/pop - * sequence here. - */ -#define INT10 "pushl %%ebp; int $0x10; popl %%ebp" - -/* Accessing VGA indexed registers */ -static inline u8 in_idx(u16 port, u8 index) -{ - outb(index, port); - return inb(port+1); -} - -static inline void out_idx(u8 v, u16 port, u8 index) -{ - outw(index+(v << 8), port); -} - -/* Writes a value to an indexed port and then reads the port again */ -static inline u8 tst_idx(u8 v, u16 port, u8 index) -{ - out_idx(port, index, v); - return in_idx(port, index); -} - -/* Get the I/O port of the VGA CRTC */ -u16 vga_crtc(void); /* video-vga.c */ - -#endif /* BOOT_VIDEO_H */ diff --git a/arch/i386/boot/voyager.c b/arch/i386/boot/voyager.c deleted file mode 100644 index 9221614d0db8..000000000000 --- a/arch/i386/boot/voyager.c +++ /dev/null @@ -1,46 +0,0 @@ -/* -*- linux-c -*- ------------------------------------------------------- * - * - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright 2007 rPath, Inc. - All Rights Reserved - * - * This file is part of the Linux kernel, and is made available under - * the terms of the GNU General Public License version 2. - * - * ----------------------------------------------------------------------- */ - -/* - * arch/i386/boot/voyager.c - * - * Get the Voyager config information - */ - -#include "boot.h" - -#ifdef CONFIG_X86_VOYAGER - -int query_voyager(void) -{ - u8 err; - u16 es, di; - /* Abuse the apm_bios_info area for this */ - u8 *data_ptr = (u8 *)&boot_params.apm_bios_info; - - data_ptr[0] = 0xff; /* Flag on config not found(?) */ - - asm("pushw %%es ; " - "int $0x15 ; " - "setc %0 ; " - "movw %%es, %1 ; " - "popw %%es" - : "=qm" (err), "=rm" (es), "=D" (di) - : "a" (0xffc0)); - - if (err) - return -1; /* Not Voyager */ - - set_fs(es); - copy_from_fs(data_ptr, di, 7); /* Table is 7 bytes apparently */ - return 0; -} - -#endif /* CONFIG_X86_VOYAGER */ |