On Mon, Jun 10, 2024 at 3:57 PM Charlie Jenkins <charlie@xxxxxxxxxxxx> wrote: > > Document support for thead vendor extensions using the key > RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0 and xtheadvector extension using > the key RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR. > > Signed-off-by: Charlie Jenkins <charlie@xxxxxxxxxxxx> > Reviewed-by: Evan Green <evan@xxxxxxxxxxxx> > --- > Documentation/arch/riscv/hwprobe.rst | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst > index 204cd4433af5..9c0ef8c57228 100644 > --- a/Documentation/arch/riscv/hwprobe.rst > +++ b/Documentation/arch/riscv/hwprobe.rst > @@ -214,3 +214,13 @@ The following keys are defined: > > * :c:macro:`RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE`: An unsigned int which > represents the size of the Zicboz block in bytes. > + > +* :c:macro:`RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0`: A bitmask containing the Our recent snafoo with CPUPERF_0 popped into my memory when reading this. Does this work properly with the WHICH_CPUS flag? Specifically, we need hwprobe_key_is_bitmask() to return true for this key since it's a bitmask.
