[PATCH v5 01/12] RISC-V: fix funct4 definition for c.jalr in parse_asm.h

Heiko Stuebner heiko at sntech.de
Fri Dec 23 14:13:21 PST 2022


From: Heiko Stuebner <heiko.stuebner at vrull.eu>

The opcode definition for c.jalr is
    c.jalr c_rs1_n0  1..0=2 15..13=4 12=1 6..2=0

This means funct4 consisting of bit [15:12] is 1001b, so the value is 0x9.

Fixes: edde5584c7ab ("riscv: Add SW single-step support for KDB")
Reported-by: Andrew Jones <ajones at ventanamicro.com>
Reviewed-by: Andrew Jones <ajones at ventanamicro.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner at vrull.eu>
---
 arch/riscv/include/asm/parse_asm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/include/asm/parse_asm.h b/arch/riscv/include/asm/parse_asm.h
index f36368de839f..7fee806805c1 100644
--- a/arch/riscv/include/asm/parse_asm.h
+++ b/arch/riscv/include/asm/parse_asm.h
@@ -125,7 +125,7 @@
 #define FUNCT3_C_J		0xa000
 #define FUNCT3_C_JAL		0x2000
 #define FUNCT4_C_JR		0x8000
-#define FUNCT4_C_JALR		0xf000
+#define FUNCT4_C_JALR		0x9000
 
 #define FUNCT12_SRET		0x10200000
 
-- 
2.35.1




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