[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.h b/drivers/s390/char/sclp.h
index 2c71d6e..7d29ab4 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -12,7 +12,7 @@
#include <linux/types.h>
#include <linux/list.h>
-
+#include <asm/sclp.h>
#include <asm/ebcdic.h>
/* maximum number of pages concerning our own memory management */
@@ -49,9 +49,11 @@
typedef unsigned int sclp_cmdw_t;
-#define SCLP_CMDW_READDATA 0x00770005
-#define SCLP_CMDW_WRITEDATA 0x00760005
-#define SCLP_CMDW_WRITEMASK 0x00780005
+#define SCLP_CMDW_READ_EVENT_DATA 0x00770005
+#define SCLP_CMDW_WRITE_EVENT_DATA 0x00760005
+#define SCLP_CMDW_WRITE_EVENT_MASK 0x00780005
+#define SCLP_CMDW_READ_SCP_INFO 0x00020001
+#define SCLP_CMDW_READ_SCP_INFO_FORCED 0x00120001
#define GDS_ID_MDSMU 0x1310
#define GDS_ID_MDSRouteInfo 0x1311
@@ -66,13 +68,6 @@
typedef u32 sccb_mask_t; /* ATTENTION: assumes 32bit mask !!! */
-struct sccb_header {
- u16 length;
- u8 function_code;
- u8 control_mask[3];
- u16 response_code;
-} __attribute__((packed));
-
struct gds_subvector {
u8 length;
u8 key;
@@ -131,6 +126,7 @@
int sclp_remove_processed(struct sccb_header *sccb);
int sclp_deactivate(void);
int sclp_reactivate(void);
+int sclp_service_call(sclp_cmdw_t command, void *sccb);
/* useful inlines */