On dj., d’abr. 24 2025, Deepak Gupta wrote: Hello,
> Adding enumeration of zicfilp and zicfiss extensions in hwprobe syscall. > > Reviewed-by: Zong Li <[email protected]> > Signed-off-by: Deepak Gupta <[email protected]> > --- > arch/riscv/include/uapi/asm/hwprobe.h | 2 ++ > arch/riscv/kernel/sys_hwprobe.c | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/hwprobe.h > b/arch/riscv/include/uapi/asm/hwprobe.h > index c3c1cc951cb9..c1b537b50158 100644 > --- a/arch/riscv/include/uapi/asm/hwprobe.h > +++ b/arch/riscv/include/uapi/asm/hwprobe.h > @@ -73,6 +73,8 @@ struct riscv_hwprobe { > #define RISCV_HWPROBE_EXT_ZCMOP (1ULL << 47) > #define RISCV_HWPROBE_EXT_ZAWRS (1ULL << 48) > #define RISCV_HWPROBE_EXT_SUPM (1ULL << 49) > +#define RISCV_HWPROBE_EXT_ZICFILP (1ULL << 50) > +#define RISCV_HWPROBE_EXT_ZICFISS (1ULL << 51) Notice that, as it stands in Linux v6.15-rc, this will conflict with the values for Zicntr and Zihpm. See 4458b8f68dc7 ("riscv: hwprobe: export Zicntr and Zihpm extensions"). I'd say that you should update these values. > #define RISCV_HWPROBE_KEY_CPUPERF_0 5 > #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0) > #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0) > diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwprobe.c > index bcd3b816306c..d802ff707913 100644 > --- a/arch/riscv/kernel/sys_hwprobe.c > +++ b/arch/riscv/kernel/sys_hwprobe.c > @@ -108,6 +108,8 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair, > EXT_KEY(ZCB); > EXT_KEY(ZCMOP); > EXT_KEY(ZICBOZ); > + EXT_KEY(ZICFILP); > + EXT_KEY(ZICFISS); > EXT_KEY(ZICOND); > EXT_KEY(ZIHINTNTL); > EXT_KEY(ZIHINTPAUSE); Greetings, Miquel
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