From: Eric Biggers <ebiggers@google.com>
Date: Fri, 29 Mar 2024 08:03:49 +0000 (-0700)
Subject: x86: add kconfig symbols for assembler VAES and VPCLMULQDQ support
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7d4700d16186b9295d1419625c822cfa1d27fb7b;p=users%2Fhch%2Fblock.git

x86: add kconfig symbols for assembler VAES and VPCLMULQDQ support

Add config symbols AS_VAES and AS_VPCLMULQDQ that expose whether the
assembler supports the vector AES and carryless multiplication
cryptographic extensions.

Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler
index 8ad41da301e5..59aedf32c4ea 100644
--- a/arch/x86/Kconfig.assembler
+++ b/arch/x86/Kconfig.assembler
@@ -25,6 +25,16 @@ config AS_GFNI
 	help
 	  Supported by binutils >= 2.30 and LLVM integrated assembler
 
+config AS_VAES
+	def_bool $(as-instr,vaesenc %ymm0$(comma)%ymm1$(comma)%ymm2)
+	help
+	  Supported by binutils >= 2.30 and LLVM integrated assembler
+
+config AS_VPCLMULQDQ
+	def_bool $(as-instr,vpclmulqdq \$0x10$(comma)%ymm0$(comma)%ymm1$(comma)%ymm2)
+	help
+	  Supported by binutils >= 2.30 and LLVM integrated assembler
+
 config AS_WRUSS
 	def_bool $(as-instr,wrussq %rax$(comma)(%rbx))
 	help