This patch adds Ssdtso to the list of extensions which are announced to user-space using te hwprobe API.
Signed-off-by: Christoph Müllner christoph.muellner@vrull.eu --- Documentation/arch/riscv/hwprobe.rst | 3 +++ arch/riscv/include/uapi/asm/hwprobe.h | 1 + arch/riscv/kernel/sys_hwprobe.c | 2 ++ 3 files changed, 6 insertions(+)
diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst index b2bcc9eed9aa..d881d56eba37 100644 --- a/Documentation/arch/riscv/hwprobe.rst +++ b/Documentation/arch/riscv/hwprobe.rst @@ -188,6 +188,9 @@ The following keys are defined: manual starting from commit 95cf1f9 ("Add changes requested by Ved during signoff")
+ * :c:macro:`RISCV_HWPROBE_EXT_SSDTSO`: The Ssdtso extension is supported, as + in version v1.0-draft3 of the corresponding extension. + * :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 9f2a8e3ff204..ee6e830abe4d 100644 --- a/arch/riscv/include/uapi/asm/hwprobe.h +++ b/arch/riscv/include/uapi/asm/hwprobe.h @@ -59,6 +59,7 @@ struct riscv_hwprobe { #define RISCV_HWPROBE_EXT_ZTSO (1ULL << 33) #define RISCV_HWPROBE_EXT_ZACAS (1ULL << 34) #define RISCV_HWPROBE_EXT_ZICOND (1ULL << 35) +#define RISCV_HWPROBE_EXT_SSDTSO (1ULL << 36) #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 a7c56b41efd2..9024061e9193 100644 --- a/arch/riscv/kernel/sys_hwprobe.c +++ b/arch/riscv/kernel/sys_hwprobe.c @@ -132,6 +132,8 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pair, EXT_KEY(ZFHMIN); EXT_KEY(ZFA); } + + EXT_KEY(SSDTSO); #undef EXT_KEY }