From: Yang Shi <yang@os.amperecomputing.com>
To: catalin.marinas@arm.com, will@kernel.org, ryan.roberts@arm.com,
akpm@linux-foundation.org, david@redhat.com,
lorenzo.stoakes@oracle.com, ardb@kernel.org, dev.jain@arm.com,
scott@os.amperecomputing.com, cl@gentwo.org
Cc: yang@os.amperecomputing.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH v8 2/5] arm64: cpufeature: add AmpereOne to BBML2 allow list
Date: Wed, 17 Sep 2025 12:02:08 -0700 [thread overview]
Message-ID: <20250917190323.3828347-3-yang@os.amperecomputing.com> (raw)
In-Reply-To: <20250917190323.3828347-1-yang@os.amperecomputing.com>
AmpereOne supports BBML2 without conflict abort, add to the allow list.
Reviewed-by: Christoph Lameter (Ampere) <cl@gentwo.org>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
---
arch/arm64/kernel/cpufeature.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index ef269a5a37e1..ba07eeff2a8d 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2235,6 +2235,8 @@ static bool has_bbml2_noabort(const struct arm64_cpu_capabilities *caps, int sco
static const struct midr_range supports_bbml2_noabort_list[] = {
MIDR_REV_RANGE(MIDR_CORTEX_X4, 0, 3, 0xf),
MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf),
+ MIDR_ALL_VERSIONS(MIDR_AMPERE1),
+ MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
{}
};
--
2.47.0
next prev parent reply other threads:[~2025-09-17 19:04 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-17 19:02 [PATCH v8 0/5] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Yang Shi
2025-09-17 19:02 ` [PATCH v8 1/5] arm64: Enable permission change on arm64 kernel block mappings Yang Shi
2025-09-17 19:02 ` Yang Shi [this message]
2025-09-17 19:02 ` [PATCH v8 3/5] arm64: mm: support large block mapping when rodata=full Yang Shi
2025-11-01 16:14 ` Guenter Roeck
2025-11-02 10:31 ` Ryan Roberts
2025-11-02 12:11 ` Ryan Roberts
2025-11-02 15:13 ` Guenter Roeck
2025-11-02 17:46 ` Guenter Roeck
2025-11-02 17:49 ` Guenter Roeck
2025-11-02 17:52 ` Guenter Roeck
2025-11-03 0:47 ` Yang Shi
2025-11-03 10:07 ` Ryan Roberts
2025-11-03 16:21 ` Yang Shi
2025-11-03 5:53 ` Dev Jain
2025-09-17 19:02 ` [PATCH v8 4/5] arm64: mm: split linear mapping if BBML2 unsupported on secondary CPUs Yang Shi
2025-09-17 19:02 ` [PATCH v8 5/5] arm64: kprobes: call set_memory_rox() for kprobe page Yang Shi
2025-09-18 12:48 ` Catalin Marinas
2025-09-18 15:05 ` Yang Shi
2025-09-18 15:30 ` Ryan Roberts
2025-09-18 15:50 ` Yang Shi
2025-09-18 15:32 ` Catalin Marinas
2025-09-18 15:48 ` Yang Shi
2025-09-18 21:10 ` [PATCH v8 0/5] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Will Deacon
2025-09-19 10:08 ` Ryan Roberts
2025-09-19 11:27 ` Will Deacon
2025-09-19 11:49 ` Ryan Roberts
2025-09-19 11:56 ` Will Deacon
2025-09-19 12:00 ` Ryan Roberts
2025-09-19 18:44 ` Will Deacon
2025-09-23 7:15 ` Ryan Roberts
2025-09-19 14:55 ` Yang Shi
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