[PATCH 5/5] arm64: cpufeature: Extend bbml3 support list

Linu Cherian linu.cherian at arm.com
Wed Jul 1 02:41:31 PDT 2026


Add below cpus to the midr list, which supports
BBML3 but don't advertise through MMFR2 ID.

Cortex A520(AE)
Cortex A715
Cortex A720(AE)
Cortex A725
Neoverse N3
C1-Nano
C1-Pro
C1-Ultra
C1-Premium

Signed-off-by: Linu Cherian <linu.cherian at arm.com>
---
 arch/arm64/kernel/cpufeature.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index d754b1b7da77..9b806c1c60aa 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2142,6 +2142,15 @@ bool cpu_supports_bbml3(void)
 		MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS),
 		MIDR_ALL_VERSIONS(MIDR_AMPERE1),
 		MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A520AE),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A715),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A720AE),
+		MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
+		MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),
+		MIDR_ALL_VERSIONS(MIDR_C1_NANO),
+		MIDR_ALL_VERSIONS(MIDR_C1_PRO),
+		MIDR_REV_RANGE(MIDR_C1_ULTRA, 1, 1, 0xf),
+		MIDR_REV_RANGE(MIDR_C1_PREMIUM, 1, 1, 0xf),
 		{}
 	};
 
-- 
2.43.0




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