RE: [PATCH v2 1/1] Documentation/x86: Add the AMX enabling example

From: Luck, Tony
Date: Wed Jun 29 2022 - 19:30:28 EST


+ #define ARCH_GET_XCOMP_SUPP 0x1021
+
+ #define XFEATURE_XTILECFG 17
+ #define XFEATURE_XTILEDATA 18

What's the long-term plan for these #defines? I see that ARCH_GET_XCOMP_SUPP
is in arch/x86/include/uapi/asm/prctl.h ... so eventually that will show up in distribution
/usr/include/asm/prctl.h courtesy of a glibc update.

But the XFEATURE bits aren't in a "uapi" file. They are an "enum" in:

arch/x86/include/asm/fpu/types.h

How will that get to /usr/include?

-Tony