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[S390] cio/ipl: Clean interface between cio and ipl code.

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Clean interface between cio and ipl code, so Peter stops complaining.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens
2007-04-27 16:01:25 +02:00
committed by Martin Schwidefsky
parent 29c380f5f0
commit 6fc321fd7d
4 changed files with 40 additions and 31 deletions
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23
arch/s390/kernel/ipl.c
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@@ -47,7 +47,7 @@ enum ipl_type {
* Must be in data section since the bss section
* is not cleared when these are accessed.
*/
u16 ipl_devno __attribute__((__section__(".data"))) = 0;
static u16 ipl_devno __attribute__((__section__(".data"))) = 0;
u32 ipl_flags __attribute__((__section__(".data"))) = 0;
static char *ipl_type_str(enum ipl_type type)
@@ -1038,6 +1038,27 @@ static int __init s390_ipl_init(void)
__initcall(s390_ipl_init);
void __init ipl_save_parameters(void)
{
struct cio_iplinfo iplinfo;
unsigned int *ipl_ptr;
void *src, *dst;
if (cio_get_iplinfo(&iplinfo))
return;
ipl_devno = iplinfo.devno;
ipl_flags |= IPL_DEVNO_VALID;
if (!iplinfo.is_qdio)
return;
ipl_flags |= IPL_PARMBLOCK_VALID;
ipl_ptr = (unsigned int *)__LC_IPL_PARMBLOCK_PTR;
src = (void *)(unsigned long)*ipl_ptr;
dst = (void *)IPL_PARMBLOCK_ORIGIN;
memmove(dst, src, PAGE_SIZE);
*ipl_ptr = IPL_PARMBLOCK_ORIGIN;
}
static LIST_HEAD(rcall);
static DEFINE_MUTEX(rcall_mutex);