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Rohit NerandJidong Sun
6b0de60c83
To get accurate and repeatable L2 cache performance metrics,
the L2 region prefetcher must be disabled. This prevents
speculative fetches from interfering with the measurements.
This patch adds a build-time option, NEOVERSE_N2_PREFETCHER_DISABLE,
to set the PF_DIS bit (bit 15) in the CPUECTLR_EL1 register for this
purpose.
Change-Id: Ie7ab9e84bb29d042d0bb2ec697e0c1e39ad5032e
Signed-off-by: Rohit Ner <rohitner@google.com>
(cherry picked from commit 75384389b9)