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-rw-r--r--arch/s390/mm/hugetlbpage.c66
1 files changed, 36 insertions, 30 deletions
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 210ffede0153..e617e74b7be2 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -14,20 +14,23 @@ static inline pmd_t __pte_to_pmd(pte_t pte)
14 14
15 /* 15 /*
16 * Convert encoding pte bits pmd bits 16 * Convert encoding pte bits pmd bits
17 * .IR...wrdytp dy..R...I...wr 17 * lIR.uswrdy.p dy..R...I...wr
18 * empty .10...000000 -> 00..0...1...00 18 * empty 010.000000.0 -> 00..0...1...00
19 * prot-none, clean, old .11...000001 -> 00..1...1...00 19 * prot-none, clean, old 111.000000.1 -> 00..1...1...00
20 * prot-none, clean, young .11...000101 -> 01..1...1...00 20 * prot-none, clean, young 111.000001.1 -> 01..1...1...00
21 * prot-none, dirty, old .10...001001 -> 10..1...1...00 21 * prot-none, dirty, old 111.000010.1 -> 10..1...1...00
22 * prot-none, dirty, young .10...001101 -> 11..1...1...00 22 * prot-none, dirty, young 111.000011.1 -> 11..1...1...00
23 * read-only, clean, old .11...010001 -> 00..1...1...01 23 * read-only, clean, old 111.000100.1 -> 00..1...1...01
24 * read-only, clean, young .01...010101 -> 01..1...0...01 24 * read-only, clean, young 101.000101.1 -> 01..1...0...01
25 * read-only, dirty, old .11...011001 -> 10..1...1...01 25 * read-only, dirty, old 111.000110.1 -> 10..1...1...01
26 * read-only, dirty, young .01...011101 -> 11..1...0...01 26 * read-only, dirty, young 101.000111.1 -> 11..1...0...01
27 * read-write, clean, old .11...110001 -> 00..0...1...11 27 * read-write, clean, old 111.001100.1 -> 00..1...1...11
28 * read-write, clean, young .01...110101 -> 01..0...0...11 28 * read-write, clean, young 101.001101.1 -> 01..1...0...11
29 * read-write, dirty, old .10...111001 -> 10..0...1...11 29 * read-write, dirty, old 110.001110.1 -> 10..0...1...11
30 * read-write, dirty, young .00...111101 -> 11..0...0...11 30 * read-write, dirty, young 100.001111.1 -> 11..0...0...11
31 * HW-bits: R read-only, I invalid
32 * SW-bits: p present, y young, d dirty, r read, w write, s special,
33 * u unused, l large
31 */ 34 */
32 if (pte_present(pte)) { 35 if (pte_present(pte)) {
33 pmd_val(pmd) = pte_val(pte) & PAGE_MASK; 36 pmd_val(pmd) = pte_val(pte) & PAGE_MASK;
@@ -48,20 +51,23 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
48 51
49 /* 52 /*
50 * Convert encoding pmd bits pte bits 53 * Convert encoding pmd bits pte bits
51 * dy..R...I...wr .IR...wrdytp 54 * dy..R...I...wr lIR.uswrdy.p
52 * empty 00..0...1...00 -> .10...001100 55 * empty 00..0...1...00 -> 010.000000.0
53 * prot-none, clean, old 00..0...1...00 -> .10...000001 56 * prot-none, clean, old 00..1...1...00 -> 111.000000.1
54 * prot-none, clean, young 01..0...1...00 -> .10...000101 57 * prot-none, clean, young 01..1...1...00 -> 111.000001.1
55 * prot-none, dirty, old 10..0...1...00 -> .10...001001 58 * prot-none, dirty, old 10..1...1...00 -> 111.000010.1
56 * prot-none, dirty, young 11..0...1...00 -> .10...001101 59 * prot-none, dirty, young 11..1...1...00 -> 111.000011.1
57 * read-only, clean, old 00..1...1...01 -> .11...010001 60 * read-only, clean, old 00..1...1...01 -> 111.000100.1
58 * read-only, clean, young 01..1...1...01 -> .11...010101 61 * read-only, clean, young 01..1...0...01 -> 101.000101.1
59 * read-only, dirty, old 10..1...1...01 -> .11...011001 62 * read-only, dirty, old 10..1...1...01 -> 111.000110.1
60 * read-only, dirty, young 11..1...1...01 -> .11...011101 63 * read-only, dirty, young 11..1...0...01 -> 101.000111.1
61 * read-write, clean, old 00..0...1...11 -> .10...110001 64 * read-write, clean, old 00..1...1...11 -> 111.001100.1
62 * read-write, clean, young 01..0...1...11 -> .10...110101 65 * read-write, clean, young 01..1...0...11 -> 101.001101.1
63 * read-write, dirty, old 10..0...1...11 -> .10...111001 66 * read-write, dirty, old 10..0...1...11 -> 110.001110.1
64 * read-write, dirty, young 11..0...1...11 -> .10...111101 67 * read-write, dirty, young 11..0...0...11 -> 100.001111.1
68 * HW-bits: R read-only, I invalid
69 * SW-bits: p present, y young, d dirty, r read, w write, s special,
70 * u unused, l large
65 */ 71 */
66 if (pmd_present(pmd)) { 72 if (pmd_present(pmd)) {
67 pte_val(pte) = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN_LARGE; 73 pte_val(pte) = pmd_val(pmd) & _SEGMENT_ENTRY_ORIGIN_LARGE;
@@ -70,8 +76,8 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
70 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE) << 4; 76 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE) << 4;
71 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) << 5; 77 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_INVALID) << 5;
72 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT); 78 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT);
73 pmd_val(pmd) |= (pte_val(pte) & _PAGE_DIRTY) << 10; 79 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) >> 10;
74 pmd_val(pmd) |= (pte_val(pte) & _PAGE_YOUNG) << 10; 80 pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) >> 10;
75 } else 81 } else
76 pte_val(pte) = _PAGE_INVALID; 82 pte_val(pte) = _PAGE_INVALID;
77 return pte; 83 return pte;
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-05 20:47:45 -0400