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s390/decompressor: clean up and rename compressed/misc.c

Browse source 
Since compressed/misc.c is conditionally compiled move error reporting
code to boot/main.c. With that being done compressed/misc.c has no
"miscellaneous" functions left and is all about plain decompression
now. Rename it accordingly.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik 2018-07-25 15:01:11 +02:00 committed by Martin Schwidefsky
parent 15426ca43d
commit 7516fc11e4
4 changed files with 14 additions and 24 deletions
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2
arch/s390/boot/compressed/Makefile
View file

@ -9,7 +9,7 @@ KCOV_INSTRUMENT := n
GCOV_PROFILE := n
UBSAN_SANITIZE := n
obj-y := $(if $(CONFIG_KERNEL_UNCOMPRESSED),,misc.o) piggy.o info.o
obj-y := $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) piggy.o info.o
targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2
targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
targets += info.bin $(obj-y)

25
arch/s390/boot/compressed/misc.c → arch/s390/boot/compressed/decompressor.c
View file

@ -7,11 +7,9 @@
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*/
#include <linux/uaccess.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/page.h>
#include <asm/sclp.h>
#include <asm/ipl.h>
#include <asm/sections.h>
#include "decompressor.h"
/*
@ -31,8 +29,6 @@ extern char _end[];
extern unsigned char _compressed_start[];
extern unsigned char _compressed_end[];
static void error(char *m);
#ifdef CONFIG_HAVE_KERNEL_BZIP2
#define HEAP_SIZE 0x400000
#else
@ -66,23 +62,6 @@ static unsigned long free_mem_end_ptr = (unsigned long) _end + HEAP_SIZE;
#include "../../../../lib/decompress_unxz.c"
#endif
static int puts(const char *s)
{
sclp_early_printk(s);
return 0;
}
static void error(char *x)
{
unsigned long long psw = 0x000a0000deadbeefULL;
puts("\n\n");
puts(x);
puts("\n\n -- System halted");
asm volatile("lpsw %0" : : "Q" (psw));
}
#define decompress_offset ALIGN((unsigned long)_end + HEAP_SIZE, PAGE_SIZE)
unsigned long mem_safe_offset(void)

1
arch/s390/boot/compressed/decompressor.h
View file

@ -8,6 +8,7 @@ static inline void *decompress_kernel(void) {}
void *decompress_kernel(void);
#endif
unsigned long mem_safe_offset(void);
void error(char *m);
struct vmlinux_info {
unsigned long default_lma;

10
arch/s390/boot/startup.c
View file

@ -1,9 +1,19 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/string.h>
#include <asm/setup.h>
#include <asm/sclp.h>
#include "compressed/decompressor.h"
#include "boot.h"
void error(char *x)
{
sclp_early_printk("\n\n");
sclp_early_printk(x);
sclp_early_printk("\n\n -- System halted");
disabled_wait(0xdeadbeef);
}
#ifdef CONFIG_KERNEL_UNCOMPRESSED
unsigned long mem_safe_offset(void)
{