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pc-bios/s390-ccw: add utility functions and "export" some others

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Add several utility functions, make IPL_check and IPL_assert generally
available, etc.

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Eugene (jno) Dvurechenski <jno@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Eugene (jno) Dvurechenski 2015-10-27 09:49:27 +01:00 committed by Cornelia Huck
parent c9262e8a84
commit dc25e843f6
3 changed files with 40 additions and 19 deletions
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18
pc-bios/s390-ccw/bootmap.h
View File

@ -264,24 +264,6 @@ typedef enum {
/* utility code below */
static inline void IPL_assert(bool term, const char *message)
{
if (!term) {
sclp_print("\n! ");
sclp_print(message);
panic(" !\n"); /* no return */
}
}
static inline void IPL_check(bool term, const char *message)
{
if (!term) {
sclp_print("\n! WARNING: ");
sclp_print(message);
sclp_print(" !\n");
}
}
static const unsigned char ebc2asc[256] =
/* 0123456789abcdef0123456789abcdef */
"................................" /* 1F */

39
pc-bios/s390-ccw/s390-ccw.h
View File

@ -67,6 +67,7 @@ bool virtio_is_blk(struct subchannel_id schid);
void virtio_setup_block(struct subchannel_id schid);
int virtio_read(ulong sector, void *load_addr);
int enable_mss_facility(void);
ulong get_second(void);
/* bootmap.c */
void zipl_load(void);
@ -143,4 +144,42 @@ static inline void yield(void)
#define MAX_SECTOR_SIZE 4096
static inline void sleep(unsigned int seconds)
{
ulong target = get_second() + seconds;
while (get_second() < target) {
yield();
}
}
static inline void *memcpy(void *s1, const void *s2, size_t n)
{
uint8_t *p1 = s1;
const uint8_t *p2 = s2;
while (n--) {
p1[n] = p2[n];
}
return s1;
}
static inline void IPL_assert(bool term, const char *message)
{
if (!term) {
sclp_print("\n! ");
sclp_print(message);
panic(" !\n"); /* no return */
}
}
static inline void IPL_check(bool term, const char *message)
{
if (!term) {
sclp_print("\n! WARNING: ");
sclp_print(message);
sclp_print(" !\n");
}
}
#endif /* S390_CCW_H */

2
pc-bios/s390-ccw/virtio.c
View File

@ -162,7 +162,7 @@ static u64 get_clock(void)
return r;
}
static ulong get_second(void)
ulong get_second(void)
{
return (get_clock() >> 12) / 1000000;
}