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-rw-r--r--include/asm-generic/bugs.h10
-rw-r--r--include/asm-generic/current.h9
-rw-r--r--include/asm-generic/delay.h9
-rw-r--r--include/asm-generic/fb.h12
-rw-r--r--include/asm-generic/hardirq.h34
-rw-r--r--include/asm-generic/irq.h18
-rw-r--r--include/asm-generic/irqflags.h72
-rw-r--r--include/asm-generic/kmap_types.h32
-rw-r--r--include/asm-generic/linkage.h8
-rw-r--r--include/asm-generic/module.h22
-rw-r--r--include/asm-generic/mutex.h9
-rw-r--r--include/asm-generic/scatterlist.h43
-rw-r--r--include/asm-generic/spinlock.h11
-rw-r--r--include/asm-generic/string.h10
-rw-r--r--include/asm-generic/syscalls.h60
-rw-r--r--include/asm-generic/system.h161
-rw-r--r--include/asm-generic/unaligned.h30
-rw-r--r--include/asm-generic/user.h8
18 files changed, 558 insertions, 0 deletions
diff --git a/include/asm-generic/bugs.h b/include/asm-generic/bugs.h
new file mode 100644
index 000000000000..6c4f62ea714d
--- /dev/null
+++ b/include/asm-generic/bugs.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_GENERIC_BUGS_H
2#define __ASM_GENERIC_BUGS_H
3/*
4 * This file is included by 'init/main.c' to check for
5 * architecture-dependent bugs.
6 */
7
8static inline void check_bugs(void) { }
9
10#endif /* __ASM_GENERIC_BUGS_H */
diff --git a/include/asm-generic/current.h b/include/asm-generic/current.h
new file mode 100644
index 000000000000..5e86f6ae7cab
--- /dev/null
+++ b/include/asm-generic/current.h
@@ -0,0 +1,9 @@
1#ifndef __ASM_GENERIC_CURRENT_H
2#define __ASM_GENERIC_CURRENT_H
3
4#include <linux/thread_info.h>
5
6#define get_current() (current_thread_info()->task)
7#define current get_current()
8
9#endif /* __ASM_GENERIC_CURRENT_H */
diff --git a/include/asm-generic/delay.h b/include/asm-generic/delay.h
new file mode 100644
index 000000000000..4586fec75ddb
--- /dev/null
+++ b/include/asm-generic/delay.h
@@ -0,0 +1,9 @@
1#ifndef __ASM_GENERIC_DELAY_H
2#define __ASM_GENERIC_DELAY_H
3
4extern void __udelay(unsigned long usecs);
5extern void __delay(unsigned long loops);
6
7#define udelay(n) __udelay(n)
8
9#endif /* __ASM_GENERIC_DELAY_H */
diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h
new file mode 100644
index 000000000000..fe8ca7fcea00
--- /dev/null
+++ b/include/asm-generic/fb.h
@@ -0,0 +1,12 @@
1#ifndef __ASM_GENERIC_FB_H_
2#define __ASM_GENERIC_FB_H_
3#include <linux/fb.h>
4
5#define fb_pgprotect(...) do {} while (0)
6
7static inline int fb_is_primary_device(struct fb_info *info)
8{
9 return 0;
10}
11
12#endif /* __ASM_GENERIC_FB_H_ */
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
new file mode 100644
index 000000000000..3d5d2c906ab3
--- /dev/null
+++ b/include/asm-generic/hardirq.h
@@ -0,0 +1,34 @@
1#ifndef __ASM_GENERIC_HARDIRQ_H
2#define __ASM_GENERIC_HARDIRQ_H
3
4#include <linux/cache.h>
5#include <linux/threads.h>
6#include <linux/irq.h>
7
8typedef struct {
9 unsigned long __softirq_pending;
10} ____cacheline_aligned irq_cpustat_t;
11
12#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
13
14#ifndef HARDIRQ_BITS
15#define HARDIRQ_BITS 8
16#endif
17
18/*
19 * The hardirq mask has to be large enough to have
20 * space for potentially all IRQ sources in the system
21 * nesting on a single CPU:
22 */
23#if (1 << HARDIRQ_BITS) < NR_IRQS
24# error HARDIRQ_BITS is too low!
25#endif
26
27#ifndef ack_bad_irq
28static inline void ack_bad_irq(unsigned int irq)
29{
30 printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
31}
32#endif
33
34#endif /* __ASM_GENERIC_HARDIRQ_H */
diff --git a/include/asm-generic/irq.h b/include/asm-generic/irq.h
new file mode 100644
index 000000000000..b90ec0bc485f
--- /dev/null
+++ b/include/asm-generic/irq.h
@@ -0,0 +1,18 @@
1#ifndef __ASM_GENERIC_IRQ_H
2#define __ASM_GENERIC_IRQ_H
3
4/*
5 * NR_IRQS is the upper bound of how many interrupts can be handled
6 * in the platform. It is used to size the static irq_map array,
7 * so don't make it too big.
8 */
9#ifndef NR_IRQS
10#define NR_IRQS 64
11#endif
12
13static inline int irq_canonicalize(int irq)
14{
15 return irq;
16}
17
18#endif /* __ASM_GENERIC_IRQ_H */
diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h
new file mode 100644
index 000000000000..9aebf618275a
--- /dev/null
+++ b/include/asm-generic/irqflags.h
@@ -0,0 +1,72 @@
1#ifndef __ASM_GENERIC_IRQFLAGS_H
2#define __ASM_GENERIC_IRQFLAGS_H
3
4/*
5 * All architectures should implement at least the first two functions,
6 * usually inline assembly will be the best way.
7 */
8#ifndef RAW_IRQ_DISABLED
9#define RAW_IRQ_DISABLED 0
10#define RAW_IRQ_ENABLED 1
11#endif
12
13/* read interrupt enabled status */
14#ifndef __raw_local_save_flags
15unsigned long __raw_local_save_flags(void);
16#endif
17
18/* set interrupt enabled status */
19#ifndef raw_local_irq_restore
20void raw_local_irq_restore(unsigned long flags);
21#endif
22
23/* get status and disable interrupts */
24#ifndef __raw_local_irq_save
25static inline unsigned long __raw_local_irq_save(void)
26{
27 unsigned long flags;
28 flags = __raw_local_save_flags();
29 raw_local_irq_restore(RAW_IRQ_DISABLED);
30 return flags;
31}
32#endif
33
34/* test flags */
35#ifndef raw_irqs_disabled_flags
36static inline int raw_irqs_disabled_flags(unsigned long flags)
37{
38 return flags == RAW_IRQ_DISABLED;
39}
40#endif
41
42/* unconditionally enable interrupts */
43#ifndef raw_local_irq_enable
44static inline void raw_local_irq_enable(void)
45{
46 raw_local_irq_restore(RAW_IRQ_ENABLED);
47}
48#endif
49
50/* unconditionally disable interrupts */
51#ifndef raw_local_irq_disable
52static inline void raw_local_irq_disable(void)
53{
54 raw_local_irq_restore(RAW_IRQ_DISABLED);
55}
56#endif
57
58/* test hardware interrupt enable bit */
59#ifndef raw_irqs_disabled
60static inline int raw_irqs_disabled(void)
61{
62 return raw_irqs_disabled_flags(__raw_local_save_flags());
63}
64#endif
65
66#define raw_local_save_flags(flags) \
67 do { (flags) = __raw_local_save_flags(); } while (0)
68
69#define raw_local_irq_save(flags) \
70 do { (flags) = __raw_local_irq_save(); } while (0)
71
72#endif /* __ASM_GENERIC_IRQFLAGS_H */
diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
new file mode 100644
index 000000000000..58c33055c304
--- /dev/null
+++ b/include/asm-generic/kmap_types.h
@@ -0,0 +1,32 @@
1#ifndef _ASM_GENERIC_KMAP_TYPES_H
2#define _ASM_GENERIC_KMAP_TYPES_H
3
4#ifdef CONFIG_DEBUG_HIGHMEM
5# define D(n) __KM_FENCE_##n ,
6#else
7# define D(n)
8#endif
9
10enum km_type {
11D(0) KM_BOUNCE_READ,
12D(1) KM_SKB_SUNRPC_DATA,
13D(2) KM_SKB_DATA_SOFTIRQ,
14D(3) KM_USER0,
15D(4) KM_USER1,
16D(5) KM_BIO_SRC_IRQ,
17D(6) KM_BIO_DST_IRQ,
18D(7) KM_PTE0,
19D(8) KM_PTE1,
20D(9) KM_IRQ0,
21D(10) KM_IRQ1,
22D(11) KM_SOFTIRQ0,
23D(12) KM_SOFTIRQ1,
24D(13) KM_SYNC_ICACHE,
25D(14) KM_SYNC_DCACHE,
26D(15) KM_UML_USERCOPY, /* UML specific, for copy_*_user - used in do_op_one_page */
27D(16) KM_TYPE_NR
28};
29
30#undef D
31
32#endif
diff --git a/include/asm-generic/linkage.h b/include/asm-generic/linkage.h
new file mode 100644
index 000000000000..fef7a01e5415
--- /dev/null
+++ b/include/asm-generic/linkage.h
@@ -0,0 +1,8 @@
1#ifndef __ASM_GENERIC_LINKAGE_H
2#define __ASM_GENERIC_LINKAGE_H
3/*
4 * linux/linkage.h provides reasonable defaults.
5 * an architecture can override them by providing its own version.
6 */
7
8#endif /* __ASM_GENERIC_LINKAGE_H */
diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h
new file mode 100644
index 000000000000..ed5b44de4c91
--- /dev/null
+++ b/include/asm-generic/module.h
@@ -0,0 +1,22 @@
1#ifndef __ASM_GENERIC_MODULE_H
2#define __ASM_GENERIC_MODULE_H
3
4/*
5 * Many architectures just need a simple module
6 * loader without arch specific data.
7 */
8struct mod_arch_specific
9{
10};
11
12#ifdef CONFIG_64BIT
13#define Elf_Shdr Elf64_Shdr
14#define Elf_Sym Elf64_Sym
15#define Elf_Ehdr Elf64_Ehdr
16#else
17#define Elf_Shdr Elf32_Shdr
18#define Elf_Sym Elf32_Sym
19#define Elf_Ehdr Elf32_Ehdr
20#endif
21
22#endif /* __ASM_GENERIC_MODULE_H */
diff --git a/include/asm-generic/mutex.h b/include/asm-generic/mutex.h
new file mode 100644
index 000000000000..fe91ab502793
--- /dev/null
+++ b/include/asm-generic/mutex.h
@@ -0,0 +1,9 @@
1#ifndef __ASM_GENERIC_MUTEX_H
2#define __ASM_GENERIC_MUTEX_H
3/*
4 * Pull in the generic implementation for the mutex fastpath,
5 * which is a reasonable default on many architectures.
6 */
7
8#include <asm-generic/mutex-dec.h>
9#endif /* __ASM_GENERIC_MUTEX_H */
diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h
new file mode 100644
index 000000000000..8b9454496a7c
--- /dev/null
+++ b/include/asm-generic/scatterlist.h
@@ -0,0 +1,43 @@
1#ifndef __ASM_GENERIC_SCATTERLIST_H
2#define __ASM_GENERIC_SCATTERLIST_H
3
4#include <linux/types.h>
5
6struct scatterlist {
7#ifdef CONFIG_DEBUG_SG
8 unsigned long sg_magic;
9#endif
10 unsigned long page_link;
11 unsigned int offset;
12 unsigned int length;
13 dma_addr_t dma_address;
14 unsigned int dma_length;
15};
16
17/*
18 * These macros should be used after a dma_map_sg call has been done
19 * to get bus addresses of each of the SG entries and their lengths.
20 * You should only work with the number of sg entries pci_map_sg
21 * returns, or alternatively stop on the first sg_dma_len(sg) which
22 * is 0.
23 */
24#define sg_dma_address(sg) ((sg)->dma_address)
25#ifndef sg_dma_len
26/*
27 * Normally, you have an iommu on 64 bit machines, but not on 32 bit
28 * machines. Architectures that are differnt should override this.
29 */
30#if __BITS_PER_LONG == 64
31#define sg_dma_len(sg) ((sg)->dma_length)
32#else
33#define sg_dma_len(sg) ((sg)->length)
34#endif /* 64 bit */
35#endif /* sg_dma_len */
36
37#ifndef ISA_DMA_THRESHOLD
38#define ISA_DMA_THRESHOLD (~0UL)
39#endif
40
41#define ARCH_HAS_SG_CHAIN
42
43#endif /* __ASM_GENERIC_SCATTERLIST_H */
diff --git a/include/asm-generic/spinlock.h b/include/asm-generic/spinlock.h
new file mode 100644
index 000000000000..1547a03ac50f
--- /dev/null
+++ b/include/asm-generic/spinlock.h
@@ -0,0 +1,11 @@
1#ifndef __ASM_GENERIC_SPINLOCK_H
2#define __ASM_GENERIC_SPINLOCK_H
3/*
4 * You need to implement asm/spinlock.h for SMP support. The generic
5 * version does not handle SMP.
6 */
7#ifdef CONFIG_SMP
8#error need an architecture specific asm/spinlock.h
9#endif
10
11#endif /* __ASM_GENERIC_SPINLOCK_H */
diff --git a/include/asm-generic/string.h b/include/asm-generic/string.h
new file mode 100644
index 000000000000..de5e0201459f
--- /dev/null
+++ b/include/asm-generic/string.h
@@ -0,0 +1,10 @@
1#ifndef __ASM_GENERIC_STRING_H
2#define __ASM_GENERIC_STRING_H
3/*
4 * The kernel provides all required functions in lib/string.c
5 *
6 * Architectures probably want to provide at least their own optimized
7 * memcpy and memset functions though.
8 */
9
10#endif /* __ASM_GENERIC_STRING_H */
diff --git a/include/asm-generic/syscalls.h b/include/asm-generic/syscalls.h
new file mode 100644
index 000000000000..df84e3b04555
--- /dev/null
+++ b/include/asm-generic/syscalls.h
@@ -0,0 +1,60 @@
1#ifndef __ASM_GENERIC_SYSCALLS_H
2#define __ASM_GENERIC_SYSCALLS_H
3
4#include <linux/compiler.h>
5#include <linux/linkage.h>
6
7/*
8 * Calling conventions for these system calls can differ, so
9 * it's possible to override them.
10 */
11#ifndef sys_clone
12asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp,
13 void __user *parent_tid, void __user *child_tid,
14 struct pt_regs *regs);
15#endif
16
17#ifndef sys_fork
18asmlinkage long sys_fork(struct pt_regs *regs);
19#endif
20
21#ifndef sys_vfork
22asmlinkage long sys_vfork(struct pt_regs *regs);
23#endif
24
25#ifndef sys_execve
26asmlinkage long sys_execve(char __user *filename, char __user * __user *argv,
27 char __user * __user *envp, struct pt_regs *regs);
28#endif
29
30#ifndef sys_mmap2
31asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
32 unsigned long prot, unsigned long flags,
33 unsigned long fd, unsigned long pgoff);
34#endif
35
36#ifndef sys_mmap
37asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
38 unsigned long prot, unsigned long flags,
39 unsigned long fd, off_t pgoff);
40#endif
41
42#ifndef sys_sigaltstack
43asmlinkage long sys_sigaltstack(const stack_t __user *, stack_t __user *,
44 struct pt_regs *);
45#endif
46
47#ifndef sys_rt_sigreturn
48asmlinkage long sys_rt_sigreturn(struct pt_regs *regs);
49#endif
50
51#ifndef sys_rt_sigsuspend
52asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
53#endif
54
55#ifndef sys_rt_sigaction
56asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act,
57 struct sigaction __user *oact, size_t sigsetsize);
58#endif
59
60#endif /* __ASM_GENERIC_SYSCALLS_H */
diff --git a/include/asm-generic/system.h b/include/asm-generic/system.h
new file mode 100644
index 000000000000..efa403b5e121
--- /dev/null
+++ b/include/asm-generic/system.h
@@ -0,0 +1,161 @@
1/* Generic system definitions, based on MN10300 definitions.
2 *
3 * It should be possible to use these on really simple architectures,
4 * but it serves more as a starting point for new ports.
5 *
6 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
7 * Written by David Howells (dhowells@redhat.com)
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public Licence
11 * as published by the Free Software Foundation; either version
12 * 2 of the Licence, or (at your option) any later version.
13 */
14#ifndef __ASM_GENERIC_SYSTEM_H
15#define __ASM_GENERIC_SYSTEM_H
16
17#ifdef __KERNEL__
18#ifndef __ASSEMBLY__
19
20#include <linux/types.h>
21#include <linux/irqflags.h>
22
23#include <asm/cmpxchg-local.h>
24
25struct task_struct;
26
27/* context switching is now performed out-of-line in switch_to.S */
28extern struct task_struct *__switch_to(struct task_struct *,
29 struct task_struct *);
30#define switch_to(prev, next, last) \
31 do { \
32 ((last) = __switch_to((prev), (next))); \
33 } while (0)
34
35#define arch_align_stack(x) (x)
36
37#define nop() asm volatile ("nop")
38
39#endif /* !__ASSEMBLY__ */
40
41/*
42 * Force strict CPU ordering.
43 * And yes, this is required on UP too when we're talking
44 * to devices.
45 *
46 * This implementation only contains a compiler barrier.
47 */
48
49#define mb() asm volatile ("": : :"memory")
50#define rmb() mb()
51#define wmb() asm volatile ("": : :"memory")
52
53#ifdef CONFIG_SMP
54#define smp_mb() mb()
55#define smp_rmb() rmb()
56#define smp_wmb() wmb()
57#else
58#define smp_mb() barrier()
59#define smp_rmb() barrier()
60#define smp_wmb() barrier()
61#endif
62
63#define set_mb(var, value) do { var = value; mb(); } while (0)
64#define set_wmb(var, value) do { var = value; wmb(); } while (0)
65
66#define read_barrier_depends() do {} while (0)
67#define smp_read_barrier_depends() do {} while (0)
68
69/*
70 * we make sure local_irq_enable() doesn't cause priority inversion
71 */
72#ifndef __ASSEMBLY__
73
74/* This function doesn't exist, so you'll get a linker error
75 * if something tries to do an invalid xchg(). */
76extern void __xchg_called_with_bad_pointer(void);
77
78static inline
79unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
80{
81 unsigned long ret, flags;
82
83 switch (size) {
84 case 1:
85#ifdef __xchg_u8
86 return __xchg_u8(x, ptr);
87#else
88 local_irq_save(flags);
89 ret = *(volatile u8 *)ptr;
90 *(volatile u8 *)ptr = x;
91 local_irq_restore(flags);
92 return ret;
93#endif /* __xchg_u8 */
94
95 case 2:
96#ifdef __xchg_u16
97 return __xchg_u16(x, ptr);
98#else
99 local_irq_save(flags);
100 ret = *(volatile u16 *)ptr;
101 *(volatile u16 *)ptr = x;
102 local_irq_restore(flags);
103 return ret;
104#endif /* __xchg_u16 */
105
106 case 4:
107#ifdef __xchg_u32
108 return __xchg_u32(x, ptr);
109#else
110 local_irq_save(flags);
111 ret = *(volatile u32 *)ptr;
112 *(volatile u32 *)ptr = x;
113 local_irq_restore(flags);
114 return ret;
115#endif /* __xchg_u32 */
116
117#ifdef CONFIG_64BIT
118 case 8:
119#ifdef __xchg_u64
120 return __xchg_u64(x, ptr);
121#else
122 local_irq_save(flags);
123 ret = *(volatile u64 *)ptr;
124 *(volatile u64 *)ptr = x;
125 local_irq_restore(flags);
126 return ret;
127#endif /* __xchg_u64 */
128#endif /* CONFIG_64BIT */
129
130 default:
131 __xchg_called_with_bad_pointer();
132 return x;
133 }
134}
135
136#define xchg(ptr, x) \
137 ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
138
139static inline unsigned long __cmpxchg(volatile unsigned long *m,
140 unsigned long old, unsigned long new)
141{
142 unsigned long retval;
143 unsigned long flags;
144
145 local_irq_save(flags);
146 retval = *m;
147 if (retval == old)
148 *m = new;
149 local_irq_restore(flags);
150 return retval;
151}
152
153#define cmpxchg(ptr, o, n) \
154 ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
155 (unsigned long)(o), \
156 (unsigned long)(n)))
157
158#endif /* !__ASSEMBLY__ */
159
160#endif /* __KERNEL__ */
161#endif /* __ASM_GENERIC_SYSTEM_H */
diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
new file mode 100644
index 000000000000..03cf5936bad6
--- /dev/null
+++ b/include/asm-generic/unaligned.h
@@ -0,0 +1,30 @@
1#ifndef __ASM_GENERIC_UNALIGNED_H
2#define __ASM_GENERIC_UNALIGNED_H
3
4/*
5 * This is the most generic implementation of unaligned accesses
6 * and should work almost anywhere.
7 *
8 * If an architecture can handle unaligned accesses in hardware,
9 * it may want to use the linux/unaligned/access_ok.h implementation
10 * instead.
11 */
12#include <asm/byteorder.h>
13
14#if defined(__LITTLE_ENDIAN)
15# include <linux/unaligned/le_struct.h>
16# include <linux/unaligned/be_byteshift.h>
17# include <linux/unaligned/generic.h>
18# define get_unaligned __get_unaligned_le
19# define put_unaligned __put_unaligned_le
20#elif defined(__BIG_ENDIAN)
21# include <linux/unaligned/be_struct.h>
22# include <linux/unaligned/le_byteshift.h>
23# include <linux/unaligned/generic.h>
24# define get_unaligned __get_unaligned_be
25# define put_unaligned __put_unaligned_be
26#else
27# error need to define endianess
28#endif
29
30#endif /* __ASM_GENERIC_UNALIGNED_H */
diff --git a/include/asm-generic/user.h b/include/asm-generic/user.h
new file mode 100644
index 000000000000..8b9c3c960aeb
--- /dev/null
+++ b/include/asm-generic/user.h
@@ -0,0 +1,8 @@
1#ifndef __ASM_GENERIC_USER_H
2#define __ASM_GENERIC_USER_H
3/*
4 * This file may define a 'struct user' structure. However, it it only
5 * used for a.out file, which are not supported on new architectures.
6 */
7
8#endif /* __ASM_GENERIC_USER_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-16 02:21:03 -0500