| Message ID | 20231017131456.2053396-13-cleger@rivosinc.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | riscv: report more ISA extensions through hwprobe | expand |
On Tue, Oct 17, 2023 at 6:15 AM Clément Léger <cleger@rivosinc.com> wrote: > > Export Zihintntl extension[1] through hwprobe. > > Link: https://drive.google.com/file/d/13_wsN8YmRfH8YWysFyTX-DjTkCnBd9hj/view [1] > Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Evan Green <evan@rivosinc.com>
diff --git a/Documentation/riscv/hwprobe.rst b/Documentation/riscv/hwprobe.rst index 35aedfff5049..9c909e0d5316 100644 --- a/Documentation/riscv/hwprobe.rst +++ b/Documentation/riscv/hwprobe.rst @@ -143,6 +143,9 @@ The following keys are defined: * :c:macro:`RISCV_HWPROBE_EXT_ZFHMIN`: The Zfhmin extension version 1.0 is supported as defined in the RISC-V ISA manual. + * :c:macro:`RISCV_HWPROBE_EXT_ZIHINTNTL`: The Zihintntl extension version 1.0 + is supported as defined in the RISC-V ISA manual. + * :c:macro:`RISCV_HWPROBE_KEY_CPUPERF_0`: A bitmask that contains performance information about the selected set of processors. diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h index 390805c49674..dc4eaa978ad1 100644 --- a/arch/riscv/include/uapi/asm/hwprobe.h +++ b/arch/riscv/include/uapi/asm/hwprobe.h @@ -51,6 +51,7 @@ struct riscv_hwprobe { #define RISCV_HWPROBE_EXT_ZVKT (1 << 25) #define RISCV_HWPROBE_EXT_ZFH (1 << 26) #define RISCV_HWPROBE_EXT_ZFHMIN (1 << 27) +#define RISCV_HWPROBE_EXT_ZIHINTNTL (1 << 28) #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_riscv.c b/arch/riscv/kernel/sys_riscv.c index 4cca8b982a7a..84daaf6ed4a1 100644 --- a/arch/riscv/kernel/sys_riscv.c +++ b/arch/riscv/kernel/sys_riscv.c @@ -172,6 +172,7 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair, CHECK_ISA_EXT(ZKSED); CHECK_ISA_EXT(ZKSH); CHECK_ISA_EXT(ZKT); + CHECK_ISA_EXT(ZIHINTNTL); if (has_vector()) { CHECK_ISA_EXT(ZVBB);
Export Zihintntl extension[1] through hwprobe. Link: https://drive.google.com/file/d/13_wsN8YmRfH8YWysFyTX-DjTkCnBd9hj/view [1] Signed-off-by: Clément Léger <cleger@rivosinc.com> --- Documentation/riscv/hwprobe.rst | 3 +++ arch/riscv/include/uapi/asm/hwprobe.h | 1 + arch/riscv/kernel/sys_riscv.c | 1 + 3 files changed, 5 insertions(+)