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-rw-r--r--arch/alpha/boot/bootp.c214
1 files changed, 0 insertions, 214 deletions
diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c
deleted file mode 100644
index 2a542a5..0000000
--- a/arch/alpha/boot/bootp.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * arch/alpha/boot/bootp.c
- *
- * Copyright (C) 1997 Jay Estabrook
- *
- * This file is used for creating a bootp file for the Linux/AXP kernel
- *
- * based significantly on the arch/alpha/boot/main.c of Linus Torvalds
- */
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <generated/utsrelease.h>
-#include <linux/mm.h>
-
-#include <asm/console.h>
-#include <asm/hwrpb.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-
-#include <stdarg.h>
-
-#include "ksize.h"
-
-extern unsigned long switch_to_osf_pal(unsigned long nr,
- struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
- unsigned long *vptb);
-
-extern void move_stack(unsigned long new_stack);
-
-struct hwrpb_struct *hwrpb = INIT_HWRPB;
-static struct pcb_struct pcb_va[1];
-
-/*
- * Find a physical address of a virtual object..
- *
- * This is easy using the virtual page table address.
- */
-
-static inline void *
-find_pa(unsigned long *vptb, void *ptr)
-{
- unsigned long address = (unsigned long) ptr;
- unsigned long result;
-
- result = vptb[address >> 13];
- result >>= 32;
- result <<= 13;
- result |= address & 0x1fff;
- return (void *) result;
-}
-
-/*
- * This function moves into OSF/1 pal-code, and has a temporary
- * PCB for that. The kernel proper should replace this PCB with
- * the real one as soon as possible.
- *
- * The page table muckery in here depends on the fact that the boot
- * code has the L1 page table identity-map itself in the second PTE
- * in the L1 page table. Thus the L1-page is virtually addressable
- * itself (through three levels) at virtual address 0x200802000.
- */
-
-#define VPTB ((unsigned long *) 0x200000000)
-#define L1 ((unsigned long *) 0x200802000)
-
-void
-pal_init(void)
-{
- unsigned long i, rev;
- struct percpu_struct * percpu;
- struct pcb_struct * pcb_pa;
-
- /* Create the dummy PCB. */
- pcb_va->ksp = 0;
- pcb_va->usp = 0;
- pcb_va->ptbr = L1[1] >> 32;
- pcb_va->asn = 0;
- pcb_va->pcc = 0;
- pcb_va->unique = 0;
- pcb_va->flags = 1;
- pcb_va->res1 = 0;
- pcb_va->res2 = 0;
- pcb_pa = find_pa(VPTB, pcb_va);
-
- /*
- * a0 = 2 (OSF)
- * a1 = return address, but we give the asm the vaddr of the PCB
- * a2 = physical addr of PCB
- * a3 = new virtual page table pointer
- * a4 = KSP (but the asm sets it)
- */
- srm_printk("Switching to OSF PAL-code .. ");
-
- i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
- if (i) {
- srm_printk("failed, code %ld\n", i);
- __halt();
- }
-
- percpu = (struct percpu_struct *)
- (INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
- rev = percpu->pal_revision = percpu->palcode_avail[2];
-
- srm_printk("Ok (rev %lx)\n", rev);
-
- tbia(); /* do it directly in case we are SMP */
-}
-
-static inline void
-load(unsigned long dst, unsigned long src, unsigned long count)
-{
- memcpy((void *)dst, (void *)src, count);
-}
-
-/*
- * Start the kernel.
- */
-static inline void
-runkernel(void)
-{
- __asm__ __volatile__(
- "bis %0,%0,$27\n\t"
- "jmp ($27)"
- : /* no outputs: it doesn't even return */
- : "r" (START_ADDR));
-}
-
-extern char _end;
-#define KERNEL_ORIGIN \
- ((((unsigned long)&_end) + 511) & ~511)
-
-void
-start_kernel(void)
-{
- /*
- * Note that this crufty stuff with static and envval
- * and envbuf is because:
- *
- * 1. Frequently, the stack is short, and we don't want to overrun;
- * 2. Frequently the stack is where we are going to copy the kernel to;
- * 3. A certain SRM console required the GET_ENV output to stack.
- * ??? A comment in the aboot sources indicates that the GET_ENV
- * destination must be quadword aligned. Might this explain the
- * behaviour, rather than requiring output to the stack, which
- * seems rather far-fetched.
- */
- static long nbytes;
- static char envval[256] __attribute__((aligned(8)));
- static unsigned long initrd_start;
-
- srm_printk("Linux/AXP bootp loader for Linux " UTS_RELEASE "\n");
- if (INIT_HWRPB->pagesize != 8192) {
- srm_printk("Expected 8kB pages, got %ldkB\n",
- INIT_HWRPB->pagesize >> 10);
- return;
- }
- if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
- srm_printk("Expected vptb at %p, got %p\n",
- VPTB, (void *)INIT_HWRPB->vptb);
- return;
- }
- pal_init();
-
- /* The initrd must be page-aligned. See below for the
- cause of the magic number 5. */
- initrd_start = ((START_ADDR + 5*KERNEL_SIZE + PAGE_SIZE) |
- (PAGE_SIZE-1)) + 1;
-#ifdef INITRD_IMAGE_SIZE
- srm_printk("Initrd positioned at %#lx\n", initrd_start);
-#endif
-
- /*
- * Move the stack to a safe place to ensure it won't be
- * overwritten by kernel image.
- */
- move_stack(initrd_start - PAGE_SIZE);
-
- nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
- if (nbytes < 0 || nbytes >= sizeof(envval)) {
- nbytes = 0;
- }
- envval[nbytes] = '\0';
- srm_printk("Loading the kernel...'%s'\n", envval);
-
- /* NOTE: *no* callbacks or printouts from here on out!!! */
-
- /* This is a hack, as some consoles seem to get virtual 20000000 (ie
- * where the SRM console puts the kernel bootp image) memory
- * overlapping physical memory where the kernel wants to be put,
- * which causes real problems when attempting to copy the former to
- * the latter... :-(
- *
- * So, we first move the kernel virtual-to-physical way above where
- * we physically want the kernel to end up, then copy it from there
- * to its final resting place... ;-}
- *
- * Sigh... */
-
-#ifdef INITRD_IMAGE_SIZE
- load(initrd_start, KERNEL_ORIGIN+KERNEL_SIZE, INITRD_IMAGE_SIZE);
-#endif
- load(START_ADDR+(4*KERNEL_SIZE), KERNEL_ORIGIN, KERNEL_SIZE);
- load(START_ADDR, START_ADDR+(4*KERNEL_SIZE), KERNEL_SIZE);
-
- memset((char*)ZERO_PGE, 0, PAGE_SIZE);
- strcpy((char*)ZERO_PGE, envval);
-#ifdef INITRD_IMAGE_SIZE
- ((long *)(ZERO_PGE+256))[0] = initrd_start;
- ((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
-#endif
-
- runkernel();
-}