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/* $NetBSD: loader.c,v 1.5 2021/10/06 20:36:58 andvar Exp $ */
/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <lib/libsa/stand.h>
#include <lib/libkern/libkern.h>
#include <lib/libsa/loadfile.h>
#include <machine/bootinfo.h>
#include "console.h"
#include "cmd.h"
#include "local.h"
void r4k_pdcache_wbinv_all(uint32_t);
void r4k_sdcache_wbinv_all(uint32_t, int);
void boot_usage(void);
int
cmd_jump(int argc, char *argp[], int interactive)
{
uint32_t addr;
uint32_t sp;
if (argc < 2) {
printf("jump jump_addr [stack_addr]\n");
return 1;
}
addr = strtoul(argp[1], 0, 0);
if (argc == 3)
sp = strtoul(argp[2], 0, 0);
else
__asm volatile("move %0, $29" : "=r"(sp)); /* current stack */
printf("jump to 0x%08x. sp=0x%08x Y/N\n", addr, sp);
if (prompt_yesno(interactive)) {
__asm volatile(
".set noreorder;"
"jalr %0;"
"move $29, %1;"
".set reorder" :: "r"(addr), "r"(sp));
/* NOTREACHED */
} else {
printf("canceled.\n");
return 1;
}
return 0;
}
int
cmd_load_binary(int argc, char *argp[], int interactive)
{
extern uint8_t kernel_binary[];
extern int kernel_binary_size;
extern char start[];
uint8_t *p, *q;
int i, j;
if (argc < 2) {
printf("load load_addr\n");
return 1;
}
if (kernel_binary_size == 0) {
printf("no kernel image\n");
return 1;
}
q = (uint8_t *)strtoul(argp[1], 0, 0);
p = kernel_binary;
/* check load reagion */
printf("load end=%p loader start=%p\n",
q + kernel_binary_size, start);
if ((uint32_t)(q + kernel_binary_size) >= (uint32_t)start) {
printf("kernel load area is overlapped with loader.\n");
return 1;
}
printf("load kernel to %p %dbytes. Y/N\n", q, kernel_binary_size);
if (!prompt_yesno(interactive)) {
printf("canceled.\n");
return 1;
}
j = kernel_binary_size / 30;
for (i = 0; i < kernel_binary_size; i ++) {
*q++ = *p++;
if ((i % j) == 0)
printf("loading kernel. %d/%dbytes\r", i,
kernel_binary_size);
}
r4k_pdcache_wbinv_all(PD_CACHE_SIZE);
r4k_sdcache_wbinv_all(SD_CACHE_SIZE, SD_CACHE_LINESIZE);
printf("loading kernel. %d/%d\r", i , kernel_binary_size);
printf("\ndone.\n");
return 0;
}
int
cmd_boot_ux(int argc, char *argp[], int interactive)
{
u_long marks[MARK_MAX];
uint32_t entry;
marks[MARK_START] = 0;
console_cursor(false);
if (loadfile("sd0d:iopboot", marks, LOAD_KERNEL) != 0) {
printf("load iopboot failed.\n");
return 1;
}
printf("start=%lx entry=%lx nsym=%lx sym=%lx end=%lx\n",
marks[MARK_START], marks[MARK_ENTRY], marks[MARK_NSYM],
marks[MARK_SYM], marks[MARK_END]);
entry = marks[MARK_ENTRY];
printf("jump to iopboot entry.(0x%x) Y/N\n", entry);
r4k_pdcache_wbinv_all(PD_CACHE_SIZE);
r4k_sdcache_wbinv_all(SD_CACHE_SIZE, SD_CACHE_LINESIZE);
if (prompt_yesno(interactive)) {
__asm volatile(
".set noreorder;"
"lw $4, %1;"
"lw $2, %2;"
"lw $3, %3;"
"jr %0;"
"move $29, %0;"
".set reorder"
:: "r"(entry),
"m"(ipl_args.a0),
"m"(ipl_args.v0),
"m"(ipl_args.v1));
/* NOTREACHED */
}
console_cursor(true);
return 0;
}
int
cmd_boot(int argc, char *argp[], int interactive)
{
u_long marks[MARK_MAX];
uint32_t entry;
struct bootinfo bi;
char *filename;
if (argc < 2) {
boot_usage();
return 1;
} else {
filename = argp[1];
}
marks[MARK_START] = 0;
console_cursor(false);
if (loadfile(filename, marks, LOAD_KERNEL) != 0) {
printf("load file failed.\n");
return 1;
}
printf("start=%lx entry=%lx nsym=%lx sym=%lx end=%lx\n",
marks[MARK_START], marks[MARK_ENTRY], marks[MARK_NSYM],
marks[MARK_SYM], marks[MARK_END]);
entry = marks[MARK_ENTRY];
printf("jump to kernel entry.(0x%x)%s\n", entry,
interactive ? " Y/N" : "");
/* Setup argument */
bi.bi_version = 0x1;
bi.bi_size = sizeof bi;
bi.bi_nsym = marks[MARK_NSYM];
bi.bi_ssym = (uint8_t *)marks[MARK_SYM];
bi.bi_esym = (uint8_t *)marks[MARK_END];
bi.bi_mainfo = ipl_args.v1;
r4k_pdcache_wbinv_all(PD_CACHE_SIZE);
r4k_sdcache_wbinv_all(SD_CACHE_SIZE, SD_CACHE_LINESIZE);
if (prompt_yesno(interactive)) {
__asm volatile(
".set noreorder;"
"lw $4, %1;"
"lw $5, %2;"
"la $6, %3;"
"jr %0;"
"move $29, %0;"
".set reorder"
:: "r"(entry), "m"(argc), "m"(argp), "m"(bi));
/* NOTREACHED */
}
console_cursor(true);
return 0;
}
void
r4k_pdcache_wbinv_all(uint32_t pdcache_size)
{
uint32_t va = 0x80000000;
uint32_t eva = va + pdcache_size;
while (va < eva) {
__asm volatile(
".set noreorder;"
".set mips3;"
"cache %1, 0x000(%0); cache %1, 0x010(%0);"
"cache %1, 0x020(%0); cache %1, 0x030(%0);"
"cache %1, 0x040(%0); cache %1, 0x050(%0);"
"cache %1, 0x060(%0); cache %1, 0x070(%0);"
"cache %1, 0x080(%0); cache %1, 0x090(%0);"
"cache %1, 0x0a0(%0); cache %1, 0x0b0(%0);"
"cache %1, 0x0c0(%0); cache %1, 0x0d0(%0);"
"cache %1, 0x0e0(%0); cache %1, 0x0f0(%0);"
"cache %1, 0x100(%0); cache %1, 0x110(%0);"
"cache %1, 0x120(%0); cache %1, 0x130(%0);"
"cache %1, 0x140(%0); cache %1, 0x150(%0);"
"cache %1, 0x160(%0); cache %1, 0x170(%0);"
"cache %1, 0x180(%0); cache %1, 0x190(%0);"
"cache %1, 0x1a0(%0); cache %1, 0x1b0(%0);"
"cache %1, 0x1c0(%0); cache %1, 0x1d0(%0);"
"cache %1, 0x1e0(%0); cache %1, 0x1f0(%0);"
".set reorder"
: : "r" (va), "i" (1 |(0 << 2)) : "memory");
va += (32 * 16);
}
}
void
r4k_sdcache_wbinv_all(uint32_t sdcache_size, int line_size)
{
uint32_t va = 0x80000000;
uint32_t eva = va + sdcache_size;
while (va < eva) {
__asm volatile(
".set noreorder;"
".set mips3;"
"cache %1, 0(%0);"
".set reorder"
: : "r" (va), "i" (3 |(0 << 2)) : "memory");
va += line_size;
}
}
void
boot_usage(void)
{
printf("boot dev:filename [argument to kernel]\n");
printf("\tex).\n");
printf("\t Disk 0, Partition 10, /netbsd => sd0k:netbsd\n");
printf("\t NFS, /netbsd => nfs:netbsd\n");
printf("\t `kernel embedded in data section' => mem:\n");
}
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