[S390] Convert memory detection into C code.
Hopefully this will make it more maintainable and less error prone.
Code makes use of search_exception_tables(). Since it calls this
function before the kernel exeception table is sorted, there is an
early call to sort_main_extable().
This way it's easy to use the already present infrastructure of fixup
sections. Also this would allows to easily convert the rest of
head[31|64].S into C code.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index c1dd19b..6a83e2d 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -96,8 +96,8 @@
static int sclp_init(void);
/* Perform service call. Return 0 on success, non-zero otherwise. */
-static int
-service_call(sclp_cmdw_t command, void *sccb)
+int
+sclp_service_call(sclp_cmdw_t command, void *sccb)
{
int cc;
@@ -173,7 +173,7 @@
if (sclp_running_state != sclp_running_state_idle)
return 0;
del_timer(&sclp_request_timer);
- rc = service_call(req->command, req->sccb);
+ rc = sclp_service_call(req->command, req->sccb);
req->start_count++;
if (rc == 0) {
@@ -325,7 +325,7 @@
sccb = (struct sccb_header *) sclp_read_sccb;
clear_page(sccb);
memset(&sclp_read_req, 0, sizeof(struct sclp_req));
- sclp_read_req.command = SCLP_CMDW_READDATA;
+ sclp_read_req.command = SCLP_CMDW_READ_EVENT_DATA;
sclp_read_req.status = SCLP_REQ_QUEUED;
sclp_read_req.start_count = 0;
sclp_read_req.callback = sclp_read_cb;
@@ -628,7 +628,7 @@
sccb = (struct init_sccb *) sclp_init_sccb;
clear_page(sccb);
memset(&sclp_init_req, 0, sizeof(struct sclp_req));
- sclp_init_req.command = SCLP_CMDW_WRITEMASK;
+ sclp_init_req.command = SCLP_CMDW_WRITE_EVENT_MASK;
sclp_init_req.status = SCLP_REQ_FILLED;
sclp_init_req.start_count = 0;
sclp_init_req.callback = NULL;
@@ -831,7 +831,7 @@
for (retry = 0; retry <= SCLP_INIT_RETRY; retry++) {
__sclp_make_init_req(0, 0);
sccb = (struct init_sccb *) sclp_init_req.sccb;
- rc = service_call(sclp_init_req.command, sccb);
+ rc = sclp_service_call(sclp_init_req.command, sccb);
if (rc == -EIO)
break;
sclp_init_req.status = SCLP_REQ_RUNNING;