linux/arch/powerpc/boot/ps3.c
Thomas Gleixner 873e65bc09 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167
Based on 1 normalized pattern(s):

  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 version 2 of the license this program
  is distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not write to the free
  software foundation inc 59 temple place suite 330 boston ma 02111
  1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 83 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.021731668@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:39 -07:00

147 lines
3.2 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* PS3 bootwrapper support.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corp.
*/
#include <stdarg.h>
#include <stddef.h>
#include "types.h"
#include "elf.h"
#include "string.h"
#include "stdio.h"
#include "page.h"
#include "ops.h"
extern int lv1_panic(u64 in_1);
extern int lv1_get_logical_partition_id(u64 *out_1);
extern int lv1_get_logical_ppe_id(u64 *out_1);
extern int lv1_get_repository_node_value(u64 in_1, u64 in_2, u64 in_3,
u64 in_4, u64 in_5, u64 *out_1, u64 *out_2);
#ifdef DEBUG
#define DBG(fmt...) printf(fmt)
#else
static inline int __attribute__ ((format (printf, 1, 2))) DBG(
const char *fmt, ...) {return 0;}
#endif
BSS_STACK(4096);
/* A buffer that may be edited by tools operating on a zImage binary so as to
* edit the command line passed to vmlinux (by setting /chosen/bootargs).
* The buffer is put in it's own section so that tools may locate it easier.
*/
static char cmdline[BOOT_COMMAND_LINE_SIZE]
__attribute__((__section__("__builtin_cmdline")));
static void prep_cmdline(void *chosen)
{
if (cmdline[0] == '\0')
getprop(chosen, "bootargs", cmdline, BOOT_COMMAND_LINE_SIZE-1);
else
setprop_str(chosen, "bootargs", cmdline);
printf("cmdline: '%s'\n", cmdline);
}
static void ps3_console_write(const char *buf, int len)
{
}
static void ps3_exit(void)
{
printf("ps3_exit\n");
/* lv1_panic will shutdown the lpar. */
lv1_panic(0); /* zero = do not reboot */
while (1);
}
static int ps3_repository_read_rm_size(u64 *rm_size)
{
int result;
u64 lpar_id;
u64 ppe_id;
u64 v2;
result = lv1_get_logical_partition_id(&lpar_id);
if (result)
return -1;
result = lv1_get_logical_ppe_id(&ppe_id);
if (result)
return -1;
/*
* n1: 0000000062690000 : ....bi..
* n2: 7075000000000000 : pu......
* n3: 0000000000000001 : ........
* n4: 726d5f73697a6500 : rm_size.
*/
result = lv1_get_repository_node_value(lpar_id, 0x0000000062690000ULL,
0x7075000000000000ULL, ppe_id, 0x726d5f73697a6500ULL, rm_size,
&v2);
printf("%s:%d: ppe_id %lu \n", __func__, __LINE__,
(unsigned long)ppe_id);
printf("%s:%d: lpar_id %lu \n", __func__, __LINE__,
(unsigned long)lpar_id);
printf("%s:%d: rm_size %llxh \n", __func__, __LINE__, *rm_size);
return result ? -1 : 0;
}
void ps3_copy_vectors(void)
{
extern char __system_reset_kernel[];
memcpy((void *)0x100, __system_reset_kernel, 512);
flush_cache((void *)0x100, 512);
}
void platform_init(void)
{
const u32 heapsize = 0x1000000 - (u32)_end; /* 16MiB */
void *chosen;
unsigned long ft_addr;
u64 rm_size;
console_ops.write = ps3_console_write;
platform_ops.exit = ps3_exit;
printf("\n-- PS3 bootwrapper --\n");
simple_alloc_init(_end, heapsize, 32, 64);
fdt_init(_dtb_start);
chosen = finddevice("/chosen");
ps3_repository_read_rm_size(&rm_size);
dt_fixup_memory(0, rm_size);
if (_initrd_end > _initrd_start) {
setprop_val(chosen, "linux,initrd-start", (u32)(_initrd_start));
setprop_val(chosen, "linux,initrd-end", (u32)(_initrd_end));
}
prep_cmdline(chosen);
ft_addr = dt_ops.finalize();
ps3_copy_vectors();
printf(" flat tree at 0x%lx\n\r", ft_addr);
((kernel_entry_t)0)(ft_addr, 0, NULL);
ps3_exit();
}