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Knowing the model specific prefetch disable bits is required to support cache pseudo-locking because the hardware prefetchers need to be disabled when the kernel memory is pseudo-locked to cache. We add these bits only for platforms known to support cache pseudo-locking. When the user requests locksetup mode to be entered it will fail if the prefetch disabling bits are not known for the platform. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: fenghua.yu@intel.com Cc: tony.luck@intel.com Cc: vikas.shivappa@linux.intel.com Cc: gavin.hindman@intel.com Cc: jithu.joseph@intel.com Cc: dave.hansen@intel.com Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/3eef559aa9fd693a104ff99ff909cfee450c1695.1529706536.git.reinette.chatre@intel.com |
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