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-rw-r--r--arch/i386/boot/main.c161
1 files changed, 0 insertions, 161 deletions
diff --git a/arch/i386/boot/main.c b/arch/i386/boot/main.c
deleted file mode 100644
index 0eeef3989a1..00000000000
--- 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_ist(void)
-{
- asm("int $0x15"
- : "=a" (boot_params.ist_info.signature),
- "=b" (boot_params.ist_info.command),
- "=c" (boot_params.ist_info.event),
- "=d" (boot_params.ist_info.perf_level)
- : "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 Intel SpeedStep (IST) information */
- query_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();
-}