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>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index ef6103bf1f9b..ea9bf2561b9e 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -391,6 +391,8 @@ typedef struct elf64_shdr {
 #define NT_S390_LAST_BREAK      0x306   /* s390 breaking event address */
 #define NT_S390_SYSTEM_CALL     0x307   /* s390 system call restart data */
 #define NT_S390_TDB     0x308           /* s390 transaction diagnostic block */
+#define NT_S390_VXRS_LOW        0x309   /* s390 vector registers 0-15 upper half */
+#define NT_S390_VXRS_HIGH       0x30a   /* s390 vector registers 16-31 */
 #define NT_ARM_VFP      0x400           /* ARM VFP/NEON registers */
 #define NT_ARM_TLS      0x401           /* ARM TLS register */
 #define NT_ARM_HW_BREAK 0x402           /* ARM hardware breakpoint registers */