powerpc/book3s64/radix: make tlb_single_page_flush_ceiling a debugfs entry
Similar to x86/s390 add a debugfs file to tune tlb_single_page_flush_ceiling. Also add a debugfs entry for tlb_local_single_page_flush_ceiling. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210812132831.233794-1-aneesh.kumar@linux.ibm.com
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