[PATCH v1 05/13] riscv: add ISA extension probing for Zfh/Zfhmin
Clément Léger
cleger at rivosinc.com
Wed Oct 11 04:14:30 PDT 2023
Add probing for Zvfh/Zfhmin ISA extensions[1].
[1] https://drive.google.com/file/d/1z3tQQLm5ALsAD77PM0l0CHnapxWCeVzP/view
Signed-off-by: Clément Léger <cleger at rivosinc.com>
---
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 4e46981ac6c8..35f00401afc8 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -74,6 +74,8 @@
#define RISCV_ISA_EXT_ZVKSH 56
#define RISCV_ISA_EXT_ZVKSG 57
#define RISCV_ISA_EXT_ZVKT 58
+#define RISCV_ISA_EXT_ZFH 59
+#define RISCV_ISA_EXT_ZFHMIN 60
#define RISCV_ISA_EXT_MAX 64
diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index 859d647f3ced..9ee7814641a4 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -171,6 +171,8 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
__RISCV_ISA_EXT_DATA(zifencei, RISCV_ISA_EXT_ZIFENCEI),
__RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE),
__RISCV_ISA_EXT_DATA(zihpm, RISCV_ISA_EXT_ZIHPM),
+ __RISCV_ISA_EXT_DATA(zfh, RISCV_ISA_EXT_ZFH),
+ __RISCV_ISA_EXT_DATA(zfhmin, RISCV_ISA_EXT_ZFHMIN),
__RISCV_ISA_EXT_DATA(zba, RISCV_ISA_EXT_ZBA),
__RISCV_ISA_EXT_DATA(zbb, RISCV_ISA_EXT_ZBB),
__RISCV_ISA_EXT_DATA(zbs, RISCV_ISA_EXT_ZBS),
--
2.42.0
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