[PATCH v5 11/13] riscv: Add ISA extension parsing for Ziccrse

Alexandre Ghiti
2024-08-18T06:47:00Z

Add support to parse the Ziccrse string in the riscv,isa string.

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
---
arch/riscv/include/asm/hwcap.h | 1 +
arch/riscv/kernel/cpufeature.c | 1 +
2 files changed, 2 insertions(+)

diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h
index f5d53251c947..9e228b079a6d 100644
--- a/arch/riscv/include/asm/hwcap.h
+++ b/arch/riscv/include/asm/hwcap.h
@@ -93,6 +93,7 @@
#define RISCV_ISA_EXT_ZCMOP 84
#define RISCV_ISA_EXT_ZAWRS 85
#define RISCV_ISA_EXT_ZABHA 86
+#define RISCV_ISA_EXT_ZICCRSE 87

#define RISCV_ISA_EXT_XLINUXENVCFG 127

diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
index 67ebcc4c9424..ea9c255bbe3d 100644
--- a/arch/riscv/kernel/cpufeature.c
+++ b/arch/riscv/kernel/cpufeature.c
@@ -314,6 +314,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = {
riscv_ext_zicbom_validate),
__RISCV_ISA_EXT_SUPERSET_VALIDATE(zicboz, RISCV_ISA_EXT_ZICBOZ, riscv_xlinuxenvcfg_exts,
riscv_ext_zicboz_validate),
+ __RISCV_ISA_EXT_DATA(ziccrse, RISCV_ISA_EXT_ZICCRSE),
__RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR),
__RISCV_ISA_EXT_DATA(zicond, RISCV_ISA_EXT_ZICOND),
__RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR),
--
2.39.2