Add parsing for Zvfh[min] ISA extension[1] which were ratified in
june 2023 around commit e2ccd0548d6c ("Remove draft warnings from
Zvfh[min]") in riscv-v-spec[2].
Link: https://drive.google.com/file/d/1_Yt60HGAf1r1hx7JnsIptw0sqkBd9BQ8/view [1]
Link: https://github.com/riscv/riscv-v-spec/commits/e2ccd0548d6c [2]
Signed-off-by: Clément Léger <cleger@xxxxxxxxxxxx>
Reviewed-by: Evan Green <evan@xxxxxxxxxxxx>
---
arch/riscv/include/asm/hwcap.h | 2 ++
arch/riscv/kernel/cpufeature.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index 5b57b24db60c..752be910e7c3 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -84,6 +84,8 @@
#define RISCV_ISA_EXT_ZFH 66
#define RISCV_ISA_EXT_ZFHMIN 67
#define RISCV_ISA_EXT_ZIHINTNTL 68
+#define RISCV_ISA_EXT_ZVFH 69
+#define RISCV_ISA_EXT_ZVFHMIN 70
#define RISCV_ISA_EXT_MAX 128
#define RISCV_ISA_EXT_INVALID U32_MAX
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index baa8edfb0e6a..0b9d16ea71f1 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -282,6 +282,8 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
__RISCV_ISA_EXT_DATA(zksh, RISCV_ISA_EXT_ZKSH),
__RISCV_ISA_EXT_SUPERSET(zvbb, RISCV_ISA_EXT_ZVBB, riscv_zvbb_exts),
__RISCV_ISA_EXT_DATA(zvbc, RISCV_ISA_EXT_ZVBC),
+ __RISCV_ISA_EXT_DATA(zvfh, RISCV_ISA_EXT_ZVFH),
+ __RISCV_ISA_EXT_DATA(zvfhmin, RISCV_ISA_EXT_ZVFHMIN),
__RISCV_ISA_EXT_DATA(zvkb, RISCV_ISA_EXT_ZVKB),
__RISCV_ISA_EXT_DATA(zvkg, RISCV_ISA_EXT_ZVKG),
__RISCV_ISA_EXT_BUNDLE(zvkn, riscv_zvkn_bundled_exts),
--
2.42.0
