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-rw-r--r--include/asm-generic/io.h30
-rw-r--r--include/asm-generic/ioctls.h1
-rw-r--r--include/asm-generic/irq_regs.h8
-rw-r--r--include/asm-generic/mman-common.h3
-rw-r--r--include/asm-generic/pgtable.h225
-rw-r--r--include/asm-generic/vmlinux.lds.h16
6 files changed, 216 insertions, 67 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 3577ca11a0be..4644c9a7f724 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -211,6 +211,36 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
211} 211}
212#endif 212#endif
213 213
214static inline void readsl(const void __iomem *addr, void *buf, int len)
215{
216 insl((unsigned long)addr, buf, len);
217}
218
219static inline void readsw(const void __iomem *addr, void *buf, int len)
220{
221 insw((unsigned long)addr, buf, len);
222}
223
224static inline void readsb(const void __iomem *addr, void *buf, int len)
225{
226 insb((unsigned long)addr, buf, len);
227}
228
229static inline void writesl(const void __iomem *addr, const void *buf, int len)
230{
231 outsl((unsigned long)addr, buf, len);
232}
233
234static inline void writesw(const void __iomem *addr, const void *buf, int len)
235{
236 outsw((unsigned long)addr, buf, len);
237}
238
239static inline void writesb(const void __iomem *addr, const void *buf, int len)
240{
241 outsb((unsigned long)addr, buf, len);
242}
243
214#ifndef CONFIG_GENERIC_IOMAP 244#ifndef CONFIG_GENERIC_IOMAP
215#define ioread8(addr) readb(addr) 245#define ioread8(addr) readb(addr)
216#define ioread16(addr) readw(addr) 246#define ioread16(addr) readw(addr)
diff --git a/include/asm-generic/ioctls.h b/include/asm-generic/ioctls.h
index a3216655d657..3f3f2d189fb8 100644
--- a/include/asm-generic/ioctls.h
+++ b/include/asm-generic/ioctls.h
@@ -67,6 +67,7 @@
67#endif 67#endif
68#define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ 68#define TIOCGPTN _IOR('T', 0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
69#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */ 69#define TIOCSPTLCK _IOW('T', 0x31, int) /* Lock/unlock Pty */
70#define TIOCGDEV _IOR('T', 0x32, unsigned int) /* Get primary device node of /dev/console */
70#define TCGETX 0x5432 /* SYS5 TCGETX compatibility */ 71#define TCGETX 0x5432 /* SYS5 TCGETX compatibility */
71#define TCSETX 0x5433 72#define TCSETX 0x5433
72#define TCSETXF 0x5434 73#define TCSETXF 0x5434
diff --git a/include/asm-generic/irq_regs.h b/include/asm-generic/irq_regs.h
index 5ae1d07d4a12..6bf9355fa7eb 100644
--- a/include/asm-generic/irq_regs.h
+++ b/include/asm-generic/irq_regs.h
@@ -22,15 +22,15 @@ DECLARE_PER_CPU(struct pt_regs *, __irq_regs);
22 22
23static inline struct pt_regs *get_irq_regs(void) 23static inline struct pt_regs *get_irq_regs(void)
24{ 24{
25 return __get_cpu_var(__irq_regs); 25 return __this_cpu_read(__irq_regs);
26} 26}
27 27
28static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs) 28static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
29{ 29{
30 struct pt_regs *old_regs, **pp_regs = &__get_cpu_var(__irq_regs); 30 struct pt_regs *old_regs;
31 31
32 old_regs = *pp_regs; 32 old_regs = __this_cpu_read(__irq_regs);
33 *pp_regs = new_regs; 33 __this_cpu_write(__irq_regs, new_regs);
34 return old_regs; 34 return old_regs;
35} 35}
36 36
diff --git a/include/asm-generic/mman-common.h b/include/asm-generic/mman-common.h
index 3da9e2742fa0..787abbb6d867 100644
--- a/include/asm-generic/mman-common.h
+++ b/include/asm-generic/mman-common.h
@@ -45,6 +45,9 @@
45#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ 45#define MADV_MERGEABLE 12 /* KSM may merge identical pages */
46#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ 46#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */
47 47
48#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */
49#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */
50
48/* compatibility flags */ 51/* compatibility flags */
49#define MAP_FILE 0 52#define MAP_FILE 0
50 53
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 6f3c6ae4fe03..f1eddf71dd0c 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -5,67 +5,108 @@
5#ifdef CONFIG_MMU 5#ifdef CONFIG_MMU
6 6
7#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS 7#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
8/* 8extern int ptep_set_access_flags(struct vm_area_struct *vma,
9 * Largely same as above, but only sets the access flags (dirty, 9 unsigned long address, pte_t *ptep,
10 * accessed, and writable). Furthermore, we know it always gets set 10 pte_t entry, int dirty);
11 * to a "more permissive" setting, which allows most architectures 11#endif
12 * to optimize this. We return whether the PTE actually changed, which 12
13 * in turn instructs the caller to do things like update__mmu_cache. 13#ifndef __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
14 * This used to be done in the caller, but sparc needs minor faults to 14extern int pmdp_set_access_flags(struct vm_area_struct *vma,
15 * force that call on sun4c so we changed this macro slightly 15 unsigned long address, pmd_t *pmdp,
16 */ 16 pmd_t entry, int dirty);
17#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \
18({ \
19 int __changed = !pte_same(*(__ptep), __entry); \
20 if (__changed) { \
21 set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \
22 flush_tlb_page(__vma, __address); \
23 } \
24 __changed; \
25})
26#endif 17#endif
27 18
28#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG 19#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
29#define ptep_test_and_clear_young(__vma, __address, __ptep) \ 20static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
30({ \ 21 unsigned long address,
31 pte_t __pte = *(__ptep); \ 22 pte_t *ptep)
32 int r = 1; \ 23{
33 if (!pte_young(__pte)) \ 24 pte_t pte = *ptep;
34 r = 0; \ 25 int r = 1;
35 else \ 26 if (!pte_young(pte))
36 set_pte_at((__vma)->vm_mm, (__address), \ 27 r = 0;
37 (__ptep), pte_mkold(__pte)); \ 28 else
38 r; \ 29 set_pte_at(vma->vm_mm, address, ptep, pte_mkold(pte));
39}) 30 return r;
31}
32#endif
33
34#ifndef __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
35#ifdef CONFIG_TRANSPARENT_HUGEPAGE
36static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
37 unsigned long address,
38 pmd_t *pmdp)
39{
40 pmd_t pmd = *pmdp;
41 int r = 1;
42 if (!pmd_young(pmd))
43 r = 0;
44 else
45 set_pmd_at(vma->vm_mm, address, pmdp, pmd_mkold(pmd));
46 return r;
47}
48#else /* CONFIG_TRANSPARENT_HUGEPAGE */
49static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
50 unsigned long address,
51 pmd_t *pmdp)
52{
53 BUG();
54 return 0;
55}
56#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
40#endif 57#endif
41 58
42#ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH 59#ifndef __HAVE_ARCH_PTEP_CLEAR_YOUNG_FLUSH
43#define ptep_clear_flush_young(__vma, __address, __ptep) \ 60int ptep_clear_flush_young(struct vm_area_struct *vma,
44({ \ 61 unsigned long address, pte_t *ptep);
45 int __young; \ 62#endif
46 __young = ptep_test_and_clear_young(__vma, __address, __ptep); \ 63
47 if (__young) \ 64#ifndef __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH
48 flush_tlb_page(__vma, __address); \ 65int pmdp_clear_flush_young(struct vm_area_struct *vma,
49 __young; \ 66 unsigned long address, pmd_t *pmdp);
50})
51#endif 67#endif
52 68
53#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR 69#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR
54#define ptep_get_and_clear(__mm, __address, __ptep) \ 70static inline pte_t ptep_get_and_clear(struct mm_struct *mm,
55({ \ 71 unsigned long address,
56 pte_t __pte = *(__ptep); \ 72 pte_t *ptep)
57 pte_clear((__mm), (__address), (__ptep)); \ 73{
58 __pte; \ 74 pte_t pte = *ptep;
75 pte_clear(mm, address, ptep);
76 return pte;
77}
78#endif
79
80#ifndef __HAVE_ARCH_PMDP_GET_AND_CLEAR
81#ifdef CONFIG_TRANSPARENT_HUGEPAGE
82static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
83 unsigned long address,
84 pmd_t *pmdp)
85{
86 pmd_t pmd = *pmdp;
87 pmd_clear(mm, address, pmdp);
88 return pmd;
59}) 89})
90#else /* CONFIG_TRANSPARENT_HUGEPAGE */
91static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
92 unsigned long address,
93 pmd_t *pmdp)
94{
95 BUG();
96 return __pmd(0);
97}
98#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
60#endif 99#endif
61 100
62#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL 101#ifndef __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
63#define ptep_get_and_clear_full(__mm, __address, __ptep, __full) \ 102static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
64({ \ 103 unsigned long address, pte_t *ptep,
65 pte_t __pte; \ 104 int full)
66 __pte = ptep_get_and_clear((__mm), (__address), (__ptep)); \ 105{
67 __pte; \ 106 pte_t pte;
68}) 107 pte = ptep_get_and_clear(mm, address, ptep);
108 return pte;
109}
69#endif 110#endif
70 111
71/* 112/*
@@ -74,20 +115,25 @@
74 * not present, or in the process of an address space destruction. 115 * not present, or in the process of an address space destruction.
75 */ 116 */
76#ifndef __HAVE_ARCH_PTE_CLEAR_NOT_PRESENT_FULL 117#ifndef __HAVE_ARCH_PTE_CLEAR_NOT_PRESENT_FULL
77#define pte_clear_not_present_full(__mm, __address, __ptep, __full) \ 118static inline void pte_clear_not_present_full(struct mm_struct *mm,
78do { \ 119 unsigned long address,
79 pte_clear((__mm), (__address), (__ptep)); \ 120 pte_t *ptep,
80} while (0) 121 int full)
122{
123 pte_clear(mm, address, ptep);
124}
81#endif 125#endif
82 126
83#ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH 127#ifndef __HAVE_ARCH_PTEP_CLEAR_FLUSH
84#define ptep_clear_flush(__vma, __address, __ptep) \ 128extern pte_t ptep_clear_flush(struct vm_area_struct *vma,
85({ \ 129 unsigned long address,
86 pte_t __pte; \ 130 pte_t *ptep);
87 __pte = ptep_get_and_clear((__vma)->vm_mm, __address, __ptep); \ 131#endif
88 flush_tlb_page(__vma, __address); \ 132
89 __pte; \ 133#ifndef __HAVE_ARCH_PMDP_CLEAR_FLUSH
90}) 134extern pmd_t pmdp_clear_flush(struct vm_area_struct *vma,
135 unsigned long address,
136 pmd_t *pmdp);
91#endif 137#endif
92 138
93#ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT 139#ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT
@@ -99,8 +145,49 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
99} 145}
100#endif 146#endif
101 147
148#ifndef __HAVE_ARCH_PMDP_SET_WRPROTECT
149#ifdef CONFIG_TRANSPARENT_HUGEPAGE
150static inline void pmdp_set_wrprotect(struct mm_struct *mm,
151 unsigned long address, pmd_t *pmdp)
152{
153 pmd_t old_pmd = *pmdp;
154 set_pmd_at(mm, address, pmdp, pmd_wrprotect(old_pmd));
155}
156#else /* CONFIG_TRANSPARENT_HUGEPAGE */
157static inline void pmdp_set_wrprotect(struct mm_struct *mm,
158 unsigned long address, pmd_t *pmdp)
159{
160 BUG();
161}
162#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
163#endif
164
165#ifndef __HAVE_ARCH_PMDP_SPLITTING_FLUSH
166extern pmd_t pmdp_clear_flush(struct vm_area_struct *vma,
167 unsigned long address,
168 pmd_t *pmdp);
169#endif
170
102#ifndef __HAVE_ARCH_PTE_SAME 171#ifndef __HAVE_ARCH_PTE_SAME
103#define pte_same(A,B) (pte_val(A) == pte_val(B)) 172static inline int pte_same(pte_t pte_a, pte_t pte_b)
173{
174 return pte_val(pte_a) == pte_val(pte_b);
175}
176#endif
177
178#ifndef __HAVE_ARCH_PMD_SAME
179#ifdef CONFIG_TRANSPARENT_HUGEPAGE
180static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
181{
182 return pmd_val(pmd_a) == pmd_val(pmd_b);
183}
184#else /* CONFIG_TRANSPARENT_HUGEPAGE */
185static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
186{
187 BUG();
188 return 0;
189}
190#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
104#endif 191#endif
105 192
106#ifndef __HAVE_ARCH_PAGE_TEST_DIRTY 193#ifndef __HAVE_ARCH_PAGE_TEST_DIRTY
@@ -348,6 +435,24 @@ extern void untrack_pfn_vma(struct vm_area_struct *vma, unsigned long pfn,
348 unsigned long size); 435 unsigned long size);
349#endif 436#endif
350 437
438#ifndef CONFIG_TRANSPARENT_HUGEPAGE
439static inline int pmd_trans_huge(pmd_t pmd)
440{
441 return 0;
442}
443static inline int pmd_trans_splitting(pmd_t pmd)
444{
445 return 0;
446}
447#ifndef __HAVE_ARCH_PMD_WRITE
448static inline int pmd_write(pmd_t pmd)
449{
450 BUG();
451 return 0;
452}
453#endif /* __HAVE_ARCH_PMD_WRITE */
454#endif
455
351#endif /* !__ASSEMBLY__ */ 456#endif /* !__ASSEMBLY__ */
352 457
353#endif /* _ASM_GENERIC_PGTABLE_H */ 458#endif /* _ASM_GENERIC_PGTABLE_H */
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index bd69d79208de..68649336c4ad 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -67,7 +67,8 @@
67 * Align to a 32 byte boundary equal to the 67 * Align to a 32 byte boundary equal to the
68 * alignment gcc 4.5 uses for a struct 68 * alignment gcc 4.5 uses for a struct
69 */ 69 */
70#define STRUCT_ALIGN() . = ALIGN(32) 70#define STRUCT_ALIGNMENT 32
71#define STRUCT_ALIGN() . = ALIGN(STRUCT_ALIGNMENT)
71 72
72/* The actual configuration determine if the init/exit sections 73/* The actual configuration determine if the init/exit sections
73 * are handled as text/data or they can be discarded (which 74 * are handled as text/data or they can be discarded (which
@@ -146,6 +147,13 @@
146#define TRACE_SYSCALLS() 147#define TRACE_SYSCALLS()
147#endif 148#endif
148 149
150
151#define KERNEL_DTB() \
152 STRUCT_ALIGN(); \
153 VMLINUX_SYMBOL(__dtb_start) = .; \
154 *(.dtb.init.rodata) \
155 VMLINUX_SYMBOL(__dtb_end) = .;
156
149/* .data section */ 157/* .data section */
150#define DATA_DATA \ 158#define DATA_DATA \
151 *(.data) \ 159 *(.data) \
@@ -192,7 +200,8 @@
192 200
193#define READ_MOSTLY_DATA(align) \ 201#define READ_MOSTLY_DATA(align) \
194 . = ALIGN(align); \ 202 . = ALIGN(align); \
195 *(.data..read_mostly) 203 *(.data..read_mostly) \
204 . = ALIGN(align);
196 205
197#define CACHELINE_ALIGNED_DATA(align) \ 206#define CACHELINE_ALIGNED_DATA(align) \
198 . = ALIGN(align); \ 207 . = ALIGN(align); \
@@ -468,7 +477,8 @@
468 MCOUNT_REC() \ 477 MCOUNT_REC() \
469 DEV_DISCARD(init.rodata) \ 478 DEV_DISCARD(init.rodata) \
470 CPU_DISCARD(init.rodata) \ 479 CPU_DISCARD(init.rodata) \
471 MEM_DISCARD(init.rodata) 480 MEM_DISCARD(init.rodata) \
481 KERNEL_DTB()
472 482
473#define INIT_TEXT \ 483#define INIT_TEXT \
474 *(.init.text) \ 484 *(.init.text) \
generated by cgit v1.2.2 (git 2.25.0) at 2026-03-12 16:11:15 -0400