Re: [PATCH 0/5] Add BBML3 cpu feature
From: Anshuman Khandual <hidden>
Date: 2026-07-03 04:42:47
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On 03/07/26 9:45 AM, Linu Cherian wrote:
Hi Suzuki, On Fri, Jul 03, 2026 at 08:47:01AM +0530, Linu Cherian wrote:quoted
Hi Suzuki, On Wed, Jul 01, 2026 at 11:11:35AM +0100, Suzuki K Poulose wrote:quoted
On 01/07/2026 10:41, Linu Cherian wrote:quoted
Patches 1 and 2 introduces BBML3 cpu feature Patches 3, 4 and 5 adds more cpus to the BBML3 support list, which dont advertise themselves through the standard MMFR2_ID registers. Linu Cherian (5): arm64: cpufeature: Add BBML3 arm64: cpufeature: Detect BBML3 based on MMFR2 IDquoted
arm64: cputype: Add Cortex-A520AE definitions arm64: cputype: Add C1-Nano definitions arm64: cpufeature: Extend bbml3 support listIf you could move the last 3 patches to the top, would be easier for people to back port the "enable" BBLM3 for those CPUs, without the renaming conflicts.IMHO, if we change the order, "arm64: cpufeature: Extend bbml3 support list" title need to be tweaked and might not go well with this BBML3 support series. Also, backporting issue wouldnt be a problem if the whole series is backported and not just 3 patches in isolation ?After looking further on this, i definitely agree that moving those patches up has an advantage, w.r.t avoiding dependency on other patches.
A possible patch order could be arm64/tools/sysreg: Update ID_AA64MMFR2_EL1 arm64/cputype: Add Cortex-A520AE definitions arm64/cputype: Add C1-Nano definitions arm64/cpufeature: Extend supports_bbml2_noabort_list arm64/cpufeature: Add BBML3 arm64/cpufeature: Detect BBML3 based on MMFR2 ID