Thread (13 messages) flat view 13 messages, 3 authors, 2016-08-09

[PATCH 6/8] arm64: Introduce raw_{d,i}cache_line_size

From: geoff@infradead.org (Geoff Levand)
Date: 2016-07-11 21:55:57
Also in: lkml

On Fri, 2016-07-08 at 12:37 +0100, Suzuki K Poulose wrote:
On systems with mismatched i/d cache min line sizes, we need to use
the smallest size possible across all CPUs. This will be done by fetching
the system wide safe value from CPU feature infrastructure.
However the some special users(e.g kexec, hibernate) would need the line
size on the CPU (rather than the system wide), when the system wide
feature may not be accessible. Provide another helper which will fetch
cache line size on the current CPU.
Looks OK for what kexec needs.

Acked-by: Geoff Levand <geoff@infradead.org>
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