linux-kernel - [tip: x86/cpu] x86/cpuid: Add AMX and SPEC

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Message-ID: <174396252153.31282.17024689977241698815.tip-bot2@tip-bot2>
Date: Sun, 06 Apr 2025 18:02:00 -0000
From: "tip-bot2 for Andi Kleen" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Andi Kleen <ak@...ux.intel.com>, Ingo Molnar <mingo@...nel.org>,
 "H. Peter Anvin" <hpa@...or.com>, Sohil Mehta <sohil.mehta@...el.com>,
 Tony Luck <tony.luck@...el.com>, "Ahmed S. Darwish" <darwi@...utronix.de>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/cpu] x86/cpuid: Add AMX and SPEC_CTRL dependencies

The following commit has been merged into the x86/cpu branch of tip:

Commit-ID:     e37aa1211fbfeb9d5e79f4a4b0da898e6d0d53bb
Gitweb:        https://git.kernel.org/tip/e37aa1211fbfeb9d5e79f4a4b0da898e6d0d53bb
Author:        Andi Kleen <ak@...ux.intel.com>
AuthorDate:    Tue, 24 Sep 2024 10:01:28 -07:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Sun, 06 Apr 2025 19:54:35 +02:00

x86/cpuid: Add AMX and SPEC_CTRL dependencies

Add some missing dependencies to the CPUID dependency table:

 - All the AMX features depend on AMX_TILE
 - All the SPEC_CTRL features depend on SPEC_CTRL

[ mingo: Keep the AMX part of the table grouped ... ]

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: Sohil Mehta <sohil.mehta@...el.com>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Ahmed S. Darwish <darwi@...utronix.de>
Link: https://lore.kernel.org/r/20240924170128.2611854-1-ak@linux.intel.com
---
 arch/x86/kernel/cpu/cpuid-deps.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
index a2fbea0..94c062c 100644
--- a/arch/x86/kernel/cpu/cpuid-deps.c
+++ b/arch/x86/kernel/cpu/cpuid-deps.c
@@ -82,8 +82,12 @@ static const struct cpuid_dep cpuid_deps[] = {
 	{ X86_FEATURE_XFD,			X86_FEATURE_XSAVES    },
 	{ X86_FEATURE_XFD,			X86_FEATURE_XGETBV1   },
 	{ X86_FEATURE_AMX_TILE,			X86_FEATURE_XFD       },
+	{ X86_FEATURE_AMX_FP16,			X86_FEATURE_AMX_TILE  },
+	{ X86_FEATURE_AMX_BF16,			X86_FEATURE_AMX_TILE  },
+	{ X86_FEATURE_AMX_INT8,			X86_FEATURE_AMX_TILE  },
 	{ X86_FEATURE_SHSTK,			X86_FEATURE_XSAVES    },
 	{ X86_FEATURE_FRED,			X86_FEATURE_LKGS      },
+	{ X86_FEATURE_SPEC_CTRL_SSBD,		X86_FEATURE_SPEC_CTRL },
 	{}
 };