[PATCH 2/2] arm64: cpufeature: Enable BBML2 for NVIDIA Rigel

From: Shanker Donthineni

Date: Tue Oct 13 2026 - 12:21:35 EST


The BBML2 no-abort capability is an allow-list of CPUs that support
BBML2 and do not raise TLB conflict aborts for mapping granularity
changes.

Add the NVIDIA Rigel core to that allow-list.

Signed-off-by: Shanker Donthineni <sdonthineni@xxxxxxxxxx>
---
arch/arm64/kernel/cpufeature.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index a06dc20c59e47..6333fefc67027 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -2167,6 +2167,7 @@ bool cpu_supports_bbml3(void)
MIDR_REV_RANGE(MIDR_NEOVERSE_V3, 0, 2, 0xf),
MIDR_REV_RANGE(MIDR_NEOVERSE_V3AE, 0, 2, 0xf),
MIDR_ALL_VERSIONS(MIDR_NVIDIA_OLYMPUS),
+ MIDR_ALL_VERSIONS(MIDR_NVIDIA_RIGEL),
MIDR_ALL_VERSIONS(MIDR_AMPERE1),
MIDR_ALL_VERSIONS(MIDR_AMPERE1A),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A520AE),
--
2.43.0