[PATCH v5 RESEND 2/4] x86/arch_prctl: Add AMX feature numbers as ABI constants
From: Chang S. Bae <hidden>
Date: 2023-01-21 00:31:59
Also in:
linux-doc, lkml
Subsystem:
the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
AMX state is dynamically enabled by the architecture-specific prctl(). Expose the state components as ABI constants. They become handy not to be looked up from the architecture specification. Signed-off-by: Chang S. Bae <redacted> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org --- Changes from v2: * Add as a new patch (Tony Luck). --- arch/x86/include/uapi/asm/prctl.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
index 500b96e71f18..f298c778f856 100644
--- a/arch/x86/include/uapi/asm/prctl.h
+++ b/arch/x86/include/uapi/asm/prctl.h@@ -16,6 +16,9 @@ #define ARCH_GET_XCOMP_GUEST_PERM 0x1024 #define ARCH_REQ_XCOMP_GUEST_PERM 0x1025 +#define ARCH_XCOMP_TILECFG 17 +#define ARCH_XCOMP_TILEDATA 18 + #define ARCH_MAP_VDSO_X32 0x2001 #define ARCH_MAP_VDSO_32 0x2002 #define ARCH_MAP_VDSO_64 0x2003
--
2.17.1