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1be031de80
Add functions to invalidate all cache lines which we will use for static_key patching. On OpenRISC there is no instruction to invalidate an entire cache so we loop and invalidate cache lines one by one. This is not extremely expensive on OpenRISC as we usually have only a few hundred cache lines. I considered using the invalidate cache page or range functions. However, tracking which ranges need invalidation would have been more expensive than flushing all pages. Cc: stable@vger.kernel.org Signed-off-by: Stafford Horne <shorne@gmail.com>
100 lines
3.3 KiB
100 lines
3.3 KiB