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With 2M PMD-level mapping, we require 32 struct pages and a single vmemmap page can contain 1024 struct pages (PAGE_SIZE/sizeof(struct page)). Hence with 64K page size, we don't use vmemmap deduplication for PMD-level mapping. [aneesh.kumar@linux.ibm.com: ppc64: don't include radix headers if CONFIG_PPC_RADIX_MMU=n] Link: https://lkml.kernel.org/r/87zg3jw8km.fsf@linux.ibm.com Link: https://lkml.kernel.org/r/20230724190759.483013-12-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| .. | ||
| associativity.rst | ||
| booting.rst | ||
| bootwrapper.rst | ||
| cpu_families.rst | ||
| cpu_features.rst | ||
| cxl.rst | ||
| cxlflash.rst | ||
| dawr-power9.rst | ||
| dexcr.rst | ||
| dscr.rst | ||
| eeh-pci-error-recovery.rst | ||
| elf_hwcaps.rst | ||
| elfnote.rst | ||
| features.rst | ||
| firmware-assisted-dump.rst | ||
| hvcs.rst | ||
| imc.rst | ||
| index.rst | ||
| isa-versions.rst | ||
| kasan.txt | ||
| kaslr-booke32.rst | ||
| mpc52xx.rst | ||
| papr_hcalls.rst | ||
| pci_iov_resource_on_powernv.rst | ||
| pmu-ebb.rst | ||
| ptrace.rst | ||
| qe_firmware.rst | ||
| syscall64-abi.rst | ||
| transactional_memory.rst | ||
| ultravisor.rst | ||
| vas-api.rst | ||
| vcpudispatch_stats.rst | ||
| vmemmap_dedup.rst | ||