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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2014-10-06 17:53:53 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-10-09 09:14:13 +0200
commit8070361799ae1e3f4ef347bd10f0a508ac10acfb (patch)
tree9846c0633cd28a86dc62eca55a4268fed513fcfd /arch/s390/include/uapi/asm/sigcontext.h
parent42f4dd613fe808676126472bbe1283e452201148 (diff)
s390: add support for vector extension
The vector extension introduces 32 128-bit vector registers and a set of instruction to operate on the vector registers. The kernel can control the use of vector registers for the problem state program with a bit in control register 0. Once enabled for a process the kernel needs to retain the content of the vector registers on context switch. The signal frame is extended to include the vector registers. Two new register sets NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH are added to the regset interface for the debugger and core dumps. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/uapi/asm/sigcontext.h')
-rw-r--r--arch/s390/include/uapi/asm/sigcontext.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/arch/s390/include/uapi/asm/sigcontext.h b/arch/s390/include/uapi/asm/sigcontext.h
index b30de9c01bbe..5f0b8d7ddb0b 100644
--- a/arch/s390/include/uapi/asm/sigcontext.h
+++ b/arch/s390/include/uapi/asm/sigcontext.h
@@ -7,10 +7,14 @@
#define _ASM_S390_SIGCONTEXT_H
#include <linux/compiler.h>
+#include <linux/types.h>
-#define __NUM_GPRS 16
-#define __NUM_FPRS 16
-#define __NUM_ACRS 16
+#define __NUM_GPRS 16
+#define __NUM_FPRS 16
+#define __NUM_ACRS 16
+#define __NUM_VXRS 32
+#define __NUM_VXRS_LOW 16
+#define __NUM_VXRS_HIGH 16
#ifndef __s390x__
@@ -59,6 +63,16 @@ typedef struct
_s390_fp_regs fpregs;
} _sigregs;
+typedef struct
+{
+#ifndef __s390x__
+ unsigned long gprs_high[__NUM_GPRS];
+#endif
+ unsigned long long vxrs_low[__NUM_VXRS_LOW];
+ __vector128 vxrs_high[__NUM_VXRS_HIGH];
+ unsigned char __reserved[128];
+} _sigregs_ext;
+
struct sigcontext
{
unsigned long oldmask[_SIGCONTEXT_NSIG_WORDS];

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