[PATCH] riscv: asm: use .insn for making custom instructioons

[Ben Dooks]

Using .word breaks with big endian builds, making something which
is not a valid or worse an instruction or pair that does something
which is not intended.

It would seem sensible to add an ASM_INSN() wrapper for anyone to
use for hand assembly of instructions.

Signed-off-by: Ben Dooks <ben.dooks at codethink.co.uk>
---
 arch/riscv/include/asm/asm.h      | 6 ++++++
 arch/riscv/include/asm/insn-def.h | 8 ++++----
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/include/asm/asm.h b/arch/riscv/include/asm/asm.h
index 8bd2a11382a3..c92f0ff51ffa 100644
--- a/arch/riscv/include/asm/asm.h
+++ b/arch/riscv/include/asm/asm.h
@@ -12,6 +12,12 @@
 #define __ASM_STR(x)	#x
 #endif
 
+#ifndef CONFIG_AS_HAS_INSN
+#define ASM_INSN(__x) ".4byte " __x
+#else
+#define ASM_INSN(__x) ".insn " __x
+#endif
+
 #if __riscv_xlen == 64
 #define __REG_SEL(a, b)	__ASM_STR(a)
 #elif __riscv_xlen == 32
diff --git a/arch/riscv/include/asm/insn-def.h b/arch/riscv/include/asm/insn-def.h
index c9cfcea52cbb..35b5024db0fc 100644
--- a/arch/riscv/include/asm/insn-def.h
+++ b/arch/riscv/include/asm/insn-def.h
@@ -256,10 +256,10 @@
 	INSN_S(OPCODE_OP_IMM, FUNC3(6), __RS2(3),		\
 	       SIMM12((offset) & 0xfe0), RS1(base))
 
-#define RISCV_PAUSE	".4byte 0x100000f"
-#define ZAWRS_WRS_NTO	".4byte 0x00d00073"
-#define ZAWRS_WRS_STO	".4byte 0x01d00073"
-#define RISCV_NOP4	".4byte 0x00000013"
+#define RISCV_PAUSE	ASM_INSN("0x100000f")
+#define ZAWRS_WRS_NTO	ASM_INSN("0x00d00073")
+#define ZAWRS_WRS_STO	ASM_INSN("0x01d00073")
+#define RISCV_NOP4	ASM_INSN("0x00000013")
 
 #define RISCV_INSN_NOP4	_AC(0x00000013, U)
 
-- 
2.37.2.352.g3c44437643