Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm64 / include / uapi / asm / sigcontext.h

diff --git a/kernel/arch/arm64/include/uapi/asm/sigcontext.h b/kernel/arch/arm64/include/uapi/asm/sigcontext.h
new file mode 100644 (file)
index 0000000..ee469be
--- /dev/null
+++ b/kernel/arch/arm64/include/uapi/asm/sigcontext.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2012 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _UAPI__ASM_SIGCONTEXT_H
+#define _UAPI__ASM_SIGCONTEXT_H
+
+#include <linux/types.h>
+
+/*
+ * Signal context structure - contains all info to do with the state
+ * before the signal handler was invoked.
+ */
+struct sigcontext {
+       __u64 fault_address;
+       /* AArch64 registers */
+       __u64 regs[31];
+       __u64 sp;
+       __u64 pc;
+       __u64 pstate;
+       /* 4K reserved for FP/SIMD state and future expansion */
+       __u8 __reserved[4096] __attribute__((__aligned__(16)));
+};
+
+/*
+ * Header to be used at the beginning of structures extending the user
+ * context. Such structures must be placed after the rt_sigframe on the stack
+ * and be 16-byte aligned. The last structure must be a dummy one with the
+ * magic and size set to 0.
+ */
+struct _aarch64_ctx {
+       __u32 magic;
+       __u32 size;
+};
+
+#define FPSIMD_MAGIC   0x46508001
+
+struct fpsimd_context {
+       struct _aarch64_ctx head;
+       __u32 fpsr;
+       __u32 fpcr;
+       __uint128_t vregs[32];
+};
+
+/* ESR_EL1 context */
+#define ESR_MAGIC      0x45535201
+
+struct esr_context {
+       struct _aarch64_ctx head;
+       __u64 esr;
+};
+
+#endif /* _UAPI__ASM_SIGCONTEXT_H */