[v2,12/19] riscv: hwprobe: export Zhintntl ISA extension
Commit Message
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(+)
Comments
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>
@@ -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.
@@ -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)
@@ -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);