Unverified Commit 188a2122 authored by Clément Léger's avatar Clément Léger Committed by Palmer Dabbelt
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riscv: add ISA extension parsing for Zacas 



Add parsing for Zacas ISA extension which was ratified recently in the
riscv-zacas manual.

Signed-off-by: default avatarClément Léger <cleger@rivosinc.com>
Link: https://lore.kernel.org/r/20231220155723.684081-5-cleger@rivosinc.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent cd7be4d0

arch/riscv/include/asm/hwcap.h

+1 −0
Original line number Diff line number Diff line
@@ -85,6 +85,7 @@ 
#define RISCV_ISA_EXT_ZVFHMIN		70

#define RISCV_ISA_EXT_ZFA		71

#define RISCV_ISA_EXT_ZTSO		72

#define RISCV_ISA_EXT_ZACAS		73



#define RISCV_ISA_EXT_MAX		128

#define RISCV_ISA_EXT_INVALID		U32_MAX

arch/riscv/kernel/cpufeature.c

+1 −0
Original line number Diff line number Diff line
@@ -259,6 +259,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = { 
	__RISCV_ISA_EXT_DATA(zihintntl, RISCV_ISA_EXT_ZIHINTNTL),

	__RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE),

	__RISCV_ISA_EXT_DATA(zihpm, RISCV_ISA_EXT_ZIHPM),

	__RISCV_ISA_EXT_DATA(zacas, RISCV_ISA_EXT_ZACAS),

	__RISCV_ISA_EXT_DATA(zfa, RISCV_ISA_EXT_ZFA),

	__RISCV_ISA_EXT_DATA(zfh, RISCV_ISA_EXT_ZFH),

	__RISCV_ISA_EXT_DATA(zfhmin, RISCV_ISA_EXT_ZFHMIN),