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Diffstat (limited to 'Documentation/mm/arch_pgtable_helpers.rst')
| -rw-r--r-- | Documentation/mm/arch_pgtable_helpers.rst | 48 |
1 files changed, 19 insertions, 29 deletions
diff --git a/Documentation/mm/arch_pgtable_helpers.rst b/Documentation/mm/arch_pgtable_helpers.rst index fd2a19df884e..2447b8a4b08c 100644 --- a/Documentation/mm/arch_pgtable_helpers.rst +++ b/Documentation/mm/arch_pgtable_helpers.rst @@ -1,7 +1,5 @@ .. SPDX-License-Identifier: GPL-2.0 -.. _arch_page_table_helpers: - =============================== Architecture Page Table Helpers =============================== @@ -20,8 +18,6 @@ PTE Page Table Helpers +---------------------------+--------------------------------------------------+ | pte_same | Tests whether both PTE entries are the same | +---------------------------+--------------------------------------------------+ -| pte_bad | Tests a non-table mapped PTE | -+---------------------------+--------------------------------------------------+ | pte_present | Tests a valid mapped PTE | +---------------------------+--------------------------------------------------+ | pte_young | Tests a young PTE | @@ -34,8 +30,6 @@ PTE Page Table Helpers +---------------------------+--------------------------------------------------+ | pte_protnone | Tests a PROT_NONE PTE | +---------------------------+--------------------------------------------------+ -| pte_devmap | Tests a ZONE_DEVICE mapped PTE | -+---------------------------+--------------------------------------------------+ | pte_soft_dirty | Tests a soft dirty PTE | +---------------------------+--------------------------------------------------+ | pte_swp_soft_dirty | Tests a soft dirty swapped PTE | @@ -48,14 +42,16 @@ PTE Page Table Helpers +---------------------------+--------------------------------------------------+ | pte_mkclean | Creates a clean PTE | +---------------------------+--------------------------------------------------+ -| pte_mkwrite | Creates a writable PTE | +| pte_mkwrite | Creates a writable PTE of the type specified by | +| | the VMA. | ++---------------------------+--------------------------------------------------+ +| pte_mkwrite_novma | Creates a writable PTE, of the conventional type | +| | of writable. | +---------------------------+--------------------------------------------------+ | pte_wrprotect | Creates a write protected PTE | +---------------------------+--------------------------------------------------+ | pte_mkspecial | Creates a special PTE | +---------------------------+--------------------------------------------------+ -| pte_mkdevmap | Creates a ZONE_DEVICE mapped PTE | -+---------------------------+--------------------------------------------------+ | pte_mksoft_dirty | Creates a soft dirty PTE | +---------------------------+--------------------------------------------------+ | pte_clear_soft_dirty | Clears a soft dirty PTE | @@ -90,8 +86,6 @@ PMD Page Table Helpers +---------------------------+--------------------------------------------------+ | pmd_leaf | Tests a leaf mapped PMD | +---------------------------+--------------------------------------------------+ -| pmd_huge | Tests a HugeTLB mapped PMD | -+---------------------------+--------------------------------------------------+ | pmd_trans_huge | Tests a Transparent Huge Page (THP) at PMD | +---------------------------+--------------------------------------------------+ | pmd_present | Tests whether pmd_page() points to valid memory | @@ -106,8 +100,6 @@ PMD Page Table Helpers +---------------------------+--------------------------------------------------+ | pmd_protnone | Tests a PROT_NONE PMD | +---------------------------+--------------------------------------------------+ -| pmd_devmap | Tests a ZONE_DEVICE mapped PMD | -+---------------------------+--------------------------------------------------+ | pmd_soft_dirty | Tests a soft dirty PMD | +---------------------------+--------------------------------------------------+ | pmd_swp_soft_dirty | Tests a soft dirty swapped PMD | @@ -120,14 +112,16 @@ PMD Page Table Helpers +---------------------------+--------------------------------------------------+ | pmd_mkclean | Creates a clean PMD | +---------------------------+--------------------------------------------------+ -| pmd_mkwrite | Creates a writable PMD | +| pmd_mkwrite | Creates a writable PMD of the type specified by | +| | the VMA. | ++---------------------------+--------------------------------------------------+ +| pmd_mkwrite_novma | Creates a writable PMD, of the conventional type | +| | of writable. | +---------------------------+--------------------------------------------------+ | pmd_wrprotect | Creates a write protected PMD | +---------------------------+--------------------------------------------------+ | pmd_mkspecial | Creates a special PMD | +---------------------------+--------------------------------------------------+ -| pmd_mkdevmap | Creates a ZONE_DEVICE mapped PMD | -+---------------------------+--------------------------------------------------+ | pmd_mksoft_dirty | Creates a soft dirty PMD | +---------------------------+--------------------------------------------------+ | pmd_clear_soft_dirty | Clears a soft dirty PMD | @@ -136,7 +130,8 @@ PMD Page Table Helpers +---------------------------+--------------------------------------------------+ | pmd_swp_clear_soft_dirty | Clears a soft dirty swapped PMD | +---------------------------+--------------------------------------------------+ -| pmd_mkinvalid | Invalidates a mapped PMD [1] | +| pmd_mkinvalid | Invalidates a present PMD; do not call for | +| | non-present PMD [1] | +---------------------------+--------------------------------------------------+ | pmd_set_huge | Creates a PMD huge mapping | +---------------------------+--------------------------------------------------+ @@ -164,8 +159,6 @@ PUD Page Table Helpers +---------------------------+--------------------------------------------------+ | pud_leaf | Tests a leaf mapped PUD | +---------------------------+--------------------------------------------------+ -| pud_huge | Tests a HugeTLB mapped PUD | -+---------------------------+--------------------------------------------------+ | pud_trans_huge | Tests a Transparent Huge Page (THP) at PUD | +---------------------------+--------------------------------------------------+ | pud_present | Tests a valid mapped PUD | @@ -176,8 +169,6 @@ PUD Page Table Helpers +---------------------------+--------------------------------------------------+ | pud_write | Tests a writable PUD | +---------------------------+--------------------------------------------------+ -| pud_devmap | Tests a ZONE_DEVICE mapped PUD | -+---------------------------+--------------------------------------------------+ | pud_mkyoung | Creates a young PUD | +---------------------------+--------------------------------------------------+ | pud_mkold | Creates an old PUD | @@ -190,9 +181,8 @@ PUD Page Table Helpers +---------------------------+--------------------------------------------------+ | pud_wrprotect | Creates a write protected PUD | +---------------------------+--------------------------------------------------+ -| pud_mkdevmap | Creates a ZONE_DEVICE mapped PUD | -+---------------------------+--------------------------------------------------+ -| pud_mkinvalid | Invalidates a mapped PUD [1] | +| pud_mkinvalid | Invalidates a present PUD; do not call for | +| | non-present PUD [1] | +---------------------------+--------------------------------------------------+ | pud_set_huge | Creates a PUD huge mapping | +---------------------------+--------------------------------------------------+ @@ -216,7 +206,7 @@ HugeTLB Page Table Helpers +---------------------------+--------------------------------------------------+ | pte_huge | Tests a HugeTLB | +---------------------------+--------------------------------------------------+ -| pte_mkhuge | Creates a HugeTLB | +| arch_make_huge_pte | Creates a HugeTLB | +---------------------------+--------------------------------------------------+ | huge_pte_dirty | Tests a dirty HugeTLB | +---------------------------+--------------------------------------------------+ @@ -240,13 +230,13 @@ SWAP Page Table Helpers ======================== +---------------------------+--------------------------------------------------+ -| __pte_to_swp_entry | Creates a swapped entry (arch) from a mapped PTE | +| __pte_to_swp_entry | Creates a swp_entry_t (arch) from a swap PTE | +---------------------------+--------------------------------------------------+ -| __swp_to_pte_entry | Creates a mapped PTE from a swapped entry (arch) | +| __swp_entry_to_pte | Creates a swap PTE from a swp_entry_t (arch) | +---------------------------+--------------------------------------------------+ -| __pmd_to_swp_entry | Creates a swapped entry (arch) from a mapped PMD | +| __pmd_to_swp_entry | Creates a swp_entry_t (arch) from a swap PMD | +---------------------------+--------------------------------------------------+ -| __swp_to_pmd_entry | Creates a mapped PMD from a swapped entry (arch) | +| __swp_entry_to_pmd | Creates a swap PMD from a swp_entry_t (arch) | +---------------------------+--------------------------------------------------+ | is_migration_entry | Tests a migration (read or write) swapped entry | +-------------------------------+----------------------------------------------+ |