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Diffstat (limited to 'arch/s390/include/asm/sysinfo.h')
-rw-r--r--arch/s390/include/asm/sysinfo.h38
1 files changed, 34 insertions, 4 deletions
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index fe7b3f8f0791..9088c5267f35 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -11,8 +11,34 @@
#ifndef __ASM_S390_SYSINFO_H
#define __ASM_S390_SYSINFO_H
-#include <asm/bitsperlong.h>
#include <linux/uuid.h>
+#include <asm/bitsperlong.h>
+#include <asm/asm.h>
+
+/*
+ * stsi - store system information
+ *
+ * Returns the current configuration level if function code 0 was specified.
+ * Otherwise returns 0 on success or a negative value on error.
+ */
+static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
+{
+ int r0 = (fc << 28) | sel1;
+ int cc;
+
+ asm volatile(
+ " lr %%r0,%[r0]\n"
+ " lr %%r1,%[r1]\n"
+ " stsi %[sysinfo]\n"
+ " lr %[r0],%%r0\n"
+ CC_IPM(cc)
+ : CC_OUT(cc, cc), [r0] "+d" (r0), [sysinfo] "=Q" (*(char *)sysinfo)
+ : [r1] "d" (sel2)
+ : CC_CLOBBER_LIST("0", "1", "memory"));
+ if (cc == 3)
+ return -EOPNOTSUPP;
+ return fc ? 0 : (unsigned int)r0 >> 28;
+}
struct sysinfo_1_1_1 {
unsigned char p:1;
@@ -40,6 +66,10 @@ struct sysinfo_1_1_1 {
unsigned int ncr;
unsigned int npr;
unsigned int ntr;
+ char reserved_3[4];
+ char model_var_cap[16];
+ unsigned int model_var_cap_rating;
+ unsigned int nvr;
};
struct sysinfo_1_2_1 {
@@ -67,12 +97,12 @@ struct sysinfo_1_2_2 {
unsigned short cpus_configured;
unsigned short cpus_standby;
unsigned short cpus_reserved;
- unsigned short adjustment[0];
+ unsigned short adjustment[];
};
struct sysinfo_1_2_2_extension {
unsigned int alt_capability;
- unsigned short alt_adjustment[0];
+ unsigned short alt_adjustment[];
};
struct sysinfo_2_2_1 {
@@ -181,7 +211,7 @@ struct sysinfo_15_1_x {
unsigned char reserved1;
unsigned char mnest;
unsigned char reserved2[4];
- union topology_entry tle[0];
+ union topology_entry tle[];
};
int stsi(void *sysinfo, int fc, int sel1, int sel2);