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Searched refs:subpages (Results 1 – 6 of 6) sorted by relevance

/Linux-v5.15/arch/powerpc/kvm/
Dbook3s_64_vio_hv.c310 unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift); in kvmppc_rm_tce_iommu_unmap() local
311 unsigned long io_entry = entry * subpages; in kvmppc_rm_tce_iommu_unmap()
313 for (i = 0; i < subpages; ++i) { in kvmppc_rm_tce_iommu_unmap()
370 unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift); in kvmppc_rm_tce_iommu_map() local
371 unsigned long io_entry = entry * subpages; in kvmppc_rm_tce_iommu_map()
373 for (i = 0, pgoff = 0; i < subpages; in kvmppc_rm_tce_iommu_map()
Dbook3s_64_vio.c480 unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift); in kvmppc_tce_iommu_unmap() local
481 unsigned long io_entry = entry * subpages; in kvmppc_tce_iommu_unmap()
483 for (i = 0; i < subpages; ++i) { in kvmppc_tce_iommu_unmap()
536 unsigned long subpages = 1ULL << (stt->page_shift - tbl->it_page_shift); in kvmppc_tce_iommu_map() local
537 unsigned long io_entry = entry * subpages; in kvmppc_tce_iommu_map()
539 for (i = 0, pgoff = 0; i < subpages; in kvmppc_tce_iommu_map()
/Linux-v5.15/Documentation/vm/
Dtranshuge.rst126 last unmap of subpages.
131 subpages is offset up by one. This additional reference is required to
132 get race-free detection of unmap of subpages when we have them mapped with
136 tracking. The alternative is to alter ->_mapcount in all subpages on each
178 comes. Splitting will free up unused subpages.
Dpage_migration.rst268 the number of THP subpages. For example, migration of a single 2MB THP that
269 has 4KB-size base pages (subpages) will cause this counter to increase by
273 PGMIGRATE_SUCCESS, above: this will be increased by the number of subpages,
Dunevictable-lru.rst446 individual subpages.
458 page will be split, subpages which belong to VM_LOCKED VMAs will be moved
/Linux-v5.15/arch/powerpc/
DKconfig839 bool "Support setting protections for 4k subpages (subpage_prot syscall)"
845 on the 4k subpages of each 64k page.