riscv: add ISA extension parsing for Zcmop

Add parsing for Zcmop ISA extension which was ratified in commit
c732a4f39a4c ("Zcmop is ratified/1.0") of the riscv-isa-manual.

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240619113529.676940-14-cleger@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index b12ae3f2141c1f622471979b3d55aa94a2f9ecce..4880324a1b298d9efdb9b7d0df4a7dc5557aa448 100644 (file)
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -91,6 +91,7 @@
 #define RISCV_ISA_EXT_ZCB              82
 #define RISCV_ISA_EXT_ZCD              83
 #define RISCV_ISA_EXT_ZCF              84
+#define RISCV_ISA_EXT_ZCMOP            85
 
 #define RISCV_ISA_EXT_XLINUXENVCFG     127
 

diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index aa631fe49b7ca958cb0c89bc5b12bcfd18c38f6d..ec4bff7a827cb074fda38d6981a160646be2da76 100644 (file)
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -354,6 +354,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
        __RISCV_ISA_EXT_DATA_VALIDATE(zcb, RISCV_ISA_EXT_ZCB, riscv_ext_zca_depends),
        __RISCV_ISA_EXT_DATA_VALIDATE(zcd, RISCV_ISA_EXT_ZCD, riscv_ext_zcd_validate),
        __RISCV_ISA_EXT_DATA_VALIDATE(zcf, RISCV_ISA_EXT_ZCF, riscv_ext_zcf_validate),
+       __RISCV_ISA_EXT_DATA_VALIDATE(zcmop, RISCV_ISA_EXT_ZCMOP, riscv_ext_zca_depends),
        __RISCV_ISA_EXT_DATA(zba, RISCV_ISA_EXT_ZBA),
        __RISCV_ISA_EXT_DATA(zbb, RISCV_ISA_EXT_ZBB),
        __RISCV_ISA_EXT_DATA(zbc, RISCV_ISA_EXT_ZBC),