From: Yang Shi <yang@os.amperecomputing.com>
To: ryan.roberts@arm.com, will@kernel.org, catalin.marinas@arm.com,
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 1/4] arm64: cpufeature: add AmpereOne to BBML2 allow list
Date: Fri, 30 May 2025 19:41:51 -0700 [thread overview]
Message-ID: <20250531024545.1101304-2-yang@os.amperecomputing.com> (raw)
In-Reply-To: <20250531024545.1101304-1-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 327eeabbb449..25e1fbfab6a3 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2224,6 +2224,8 @@ static bool cpu_has_bbml2_noabort(unsigned int cpu_midr)
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),
{}
};
--
2.48.1
next prev parent reply other threads:[~2025-05-31 2:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-31 2:41 [v4 PATCH 0/4] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Yang Shi
2025-05-31 2:41 ` Yang Shi [this message]
2025-05-31 2:41 ` [PATCH 2/4] arm64: mm: make __create_pgd_mapping() and helpers non-void Yang Shi
2025-06-16 10:04 ` Ryan Roberts
2025-06-17 21:11 ` Yang Shi
2025-06-23 13:05 ` Ryan Roberts
2025-05-31 2:41 ` [PATCH 3/4] arm64: mm: support large block mapping when rodata=full Yang Shi
2025-06-16 11:58 ` Ryan Roberts
2025-06-16 12:33 ` Ryan Roberts
2025-06-17 21:01 ` Yang Shi
2025-06-16 16:24 ` Ryan Roberts
2025-06-17 21:09 ` Yang Shi
2025-06-23 13:26 ` Ryan Roberts
2025-06-23 19:12 ` Yang Shi
2025-06-26 22:39 ` Yang Shi
2025-07-23 17:38 ` Dev Jain
2025-07-23 20:51 ` Yang Shi
2025-07-24 11:43 ` Dev Jain
2025-07-24 17:59 ` Yang Shi
2025-05-31 2:41 ` [PATCH 4/4] arm64: mm: split linear mapping if BBML2 is not supported on secondary CPUs Yang Shi
2025-06-23 12:26 ` Ryan Roberts
2025-06-23 20:56 ` Yang Shi
2025-06-13 17:21 ` [v4 PATCH 0/4] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Yang Shi
2025-06-16 9:09 ` Ryan Roberts
2025-06-17 20:57 ` Yang Shi
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