From: Yang Shi <yang@os.amperecomputing.com>
To: ryan.roberts@arm.com, will@kernel.org, catalin.marinas@arm.com,
akpm@linux-foundation.org, Miko.Lenczewski@arm.com,
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
Subject: [PATCH 2/4] arm64: cpufeature: add AmpereOne to BBML2 allow list
Date: Thu, 24 Jul 2025 15:11:04 -0700 [thread overview]
Message-ID: <20250724221216.1998696-3-yang@os.amperecomputing.com> (raw)
In-Reply-To: <20250724221216.1998696-1-yang@os.amperecomputing.com>
AmpereOne supports BBML2 without conflict abort, add to the allow list.
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 7a3c404288d5..d2a8a509a58e 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2230,6 +2230,8 @@ 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),
{}
};
--
2.50.0
next prev parent reply other threads:[~2025-07-24 22:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-24 22:11 [v5 PATCH 0/4] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Yang Shi
2025-07-24 22:11 ` [PATCH 1/4] arm64: Enable permission change on arm64 kernel block mappings Yang Shi
2025-07-24 22:11 ` Yang Shi [this message]
2025-08-01 14:36 ` [PATCH 2/4] arm64: cpufeature: add AmpereOne to BBML2 allow list Ryan Roberts
2025-08-04 23:20 ` Christoph Lameter (Ampere)
2025-07-24 22:11 ` [PATCH 3/4] arm64: mm: support large block mapping when rodata=full Yang Shi
2025-07-29 12:34 ` Dev Jain
2025-08-05 21:28 ` Yang Shi
2025-08-06 0:10 ` Yang Shi
2025-08-01 14:35 ` Ryan Roberts
2025-08-04 10:07 ` Ryan Roberts
2025-08-05 18:53 ` Yang Shi
2025-08-06 7:20 ` Ryan Roberts
2025-08-07 0:44 ` Yang Shi
2025-07-24 22:11 ` [PATCH 4/4] arm64: mm: split linear mapping if BBML2 is not supported on secondary CPUs Yang Shi
2025-07-26 11:10 ` kernel test robot
2025-08-01 16:14 ` Ryan Roberts
2025-08-05 18:59 ` Yang Shi
2025-08-05 7:54 ` Ryan Roberts
2025-08-05 17:45 ` Yang Shi
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