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-rw-r--r--arch/score/include/asm/Kbuild3
-rw-r--r--arch/score/include/asm/asmmacro.h161
-rw-r--r--arch/score/include/asm/atomic.h6
-rw-r--r--arch/score/include/asm/auxvec.h4
-rw-r--r--arch/score/include/asm/bitops.h16
-rw-r--r--arch/score/include/asm/bitsperlong.h6
-rw-r--r--arch/score/include/asm/bug.h6
-rw-r--r--arch/score/include/asm/bugs.h6
-rw-r--r--arch/score/include/asm/byteorder.h6
-rw-r--r--arch/score/include/asm/cache.h7
-rw-r--r--arch/score/include/asm/cacheflush.h45
-rw-r--r--arch/score/include/asm/checksum.h235
-rw-r--r--arch/score/include/asm/cputime.h6
-rw-r--r--arch/score/include/asm/current.h6
-rw-r--r--arch/score/include/asm/delay.h26
-rw-r--r--arch/score/include/asm/device.h6
-rw-r--r--arch/score/include/asm/div64.h6
-rw-r--r--arch/score/include/asm/dma-mapping.h6
-rw-r--r--arch/score/include/asm/dma.h8
-rw-r--r--arch/score/include/asm/elf.h103
-rw-r--r--arch/score/include/asm/emergency-restart.h6
-rw-r--r--arch/score/include/asm/errno.h6
-rw-r--r--arch/score/include/asm/fcntl.h6
-rw-r--r--arch/score/include/asm/fixmap.h82
-rw-r--r--arch/score/include/asm/ftrace.h4
-rw-r--r--arch/score/include/asm/futex.h6
-rw-r--r--arch/score/include/asm/hardirq.h6
-rw-r--r--arch/score/include/asm/hw_irq.h4
-rw-r--r--arch/score/include/asm/io.h9
-rw-r--r--arch/score/include/asm/ioctl.h6
-rw-r--r--arch/score/include/asm/ioctls.h6
-rw-r--r--arch/score/include/asm/ipcbuf.h6
-rw-r--r--arch/score/include/asm/irq.h25
-rw-r--r--arch/score/include/asm/irq_regs.h11
-rw-r--r--arch/score/include/asm/irqflags.h109
-rw-r--r--arch/score/include/asm/kdebug.h6
-rw-r--r--arch/score/include/asm/kmap_types.h6
-rw-r--r--arch/score/include/asm/linkage.h7
-rw-r--r--arch/score/include/asm/local.h6
-rw-r--r--arch/score/include/asm/mman.h6
-rw-r--r--arch/score/include/asm/mmu.h6
-rw-r--r--arch/score/include/asm/mmu_context.h113
-rw-r--r--arch/score/include/asm/module.h39
-rw-r--r--arch/score/include/asm/msgbuf.h6
-rw-r--r--arch/score/include/asm/mutex.h6
-rw-r--r--arch/score/include/asm/page.h92
-rw-r--r--arch/score/include/asm/param.h6
-rw-r--r--arch/score/include/asm/pci.h4
-rw-r--r--arch/score/include/asm/percpu.h6
-rw-r--r--arch/score/include/asm/pgalloc.h83
-rw-r--r--arch/score/include/asm/pgtable-bits.h25
-rw-r--r--arch/score/include/asm/pgtable.h287
-rw-r--r--arch/score/include/asm/poll.h6
-rw-r--r--arch/score/include/asm/posix_types.h6
-rw-r--r--arch/score/include/asm/processor.h106
-rw-r--r--arch/score/include/asm/ptrace.h97
-rw-r--r--arch/score/include/asm/resource.h6
-rw-r--r--arch/score/include/asm/scatterlist.h6
-rw-r--r--arch/score/include/asm/scoreregs.h51
-rw-r--r--arch/score/include/asm/sections.h6
-rw-r--r--arch/score/include/asm/segment.h21
-rw-r--r--arch/score/include/asm/sembuf.h6
-rw-r--r--arch/score/include/asm/setup.h41
-rw-r--r--arch/score/include/asm/shmbuf.h6
-rw-r--r--arch/score/include/asm/shmparam.h6
-rw-r--r--arch/score/include/asm/sigcontext.h22
-rw-r--r--arch/score/include/asm/siginfo.h6
-rw-r--r--arch/score/include/asm/signal.h6
-rw-r--r--arch/score/include/asm/socket.h6
-rw-r--r--arch/score/include/asm/sockios.h6
-rw-r--r--arch/score/include/asm/stat.h6
-rw-r--r--arch/score/include/asm/statfs.h6
-rw-r--r--arch/score/include/asm/string.h8
-rw-r--r--arch/score/include/asm/swab.h6
-rw-r--r--arch/score/include/asm/syscalls.h11
-rw-r--r--arch/score/include/asm/system.h90
-rw-r--r--arch/score/include/asm/termbits.h6
-rw-r--r--arch/score/include/asm/termios.h6
-rw-r--r--arch/score/include/asm/thread_info.h105
-rw-r--r--arch/score/include/asm/timex.h8
-rw-r--r--arch/score/include/asm/tlb.h17
-rw-r--r--arch/score/include/asm/tlbflush.h142
-rw-r--r--arch/score/include/asm/topology.h6
-rw-r--r--arch/score/include/asm/types.h6
-rw-r--r--arch/score/include/asm/uaccess.h424
-rw-r--r--arch/score/include/asm/ucontext.h1
-rw-r--r--arch/score/include/asm/unaligned.h6
-rw-r--r--arch/score/include/asm/unistd.h13
-rw-r--r--arch/score/include/asm/user.h21
89 files changed, 2962 insertions, 0 deletions
diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
new file mode 100644
index 000000000000..b367abd4620f
--- /dev/null
+++ b/arch/score/include/asm/Kbuild
@@ -0,0 +1,3 @@
1include include/asm-generic/Kbuild.asm
2
3header-y +=
diff --git a/arch/score/include/asm/asmmacro.h b/arch/score/include/asm/asmmacro.h
new file mode 100644
index 000000000000..a04a54cea25d
--- /dev/null
+++ b/arch/score/include/asm/asmmacro.h
@@ -0,0 +1,161 @@
1#ifndef _ASM_SCORE_ASMMACRO_H
2#define _ASM_SCORE_ASMMACRO_H
3
4#include <asm/asm-offsets.h>
5
6#ifdef __ASSEMBLY__
7
8.macro SAVE_ALL
9 mfcr r30, cr0
10 mv r31, r0
11 nop
12 /* if UMs == 1, change stack. */
13 slli.c r30, r30, 28
14 bpl 1f
15 la r31, kernelsp
16 lw r31, [r31]
171:
18 mv r30, r0
19 addri r0, r31, -PT_SIZE
20
21 sw r30, [r0, PT_R0]
22 .set r1
23 sw r1, [r0, PT_R1]
24 .set nor1
25 sw r2, [r0, PT_R2]
26 sw r3, [r0, PT_R3]
27 sw r4, [r0, PT_R4]
28 sw r5, [r0, PT_R5]
29 sw r6, [r0, PT_R6]
30 sw r7, [r0, PT_R7]
31
32 sw r8, [r0, PT_R8]
33 sw r9, [r0, PT_R9]
34 sw r10, [r0, PT_R10]
35 sw r11, [r0, PT_R11]
36 sw r12, [r0, PT_R12]
37 sw r13, [r0, PT_R13]
38 sw r14, [r0, PT_R14]
39 sw r15, [r0, PT_R15]
40
41 sw r16, [r0, PT_R16]
42 sw r17, [r0, PT_R17]
43 sw r18, [r0, PT_R18]
44 sw r19, [r0, PT_R19]
45 sw r20, [r0, PT_R20]
46 sw r21, [r0, PT_R21]
47 sw r22, [r0, PT_R22]
48 sw r23, [r0, PT_R23]
49
50 sw r24, [r0, PT_R24]
51 sw r25, [r0, PT_R25]
52 sw r25, [r0, PT_R25]
53 sw r26, [r0, PT_R26]
54 sw r27, [r0, PT_R27]
55
56 sw r28, [r0, PT_R28]
57 sw r29, [r0, PT_R29]
58 orri r28, r0, 0x1fff
59 li r31, 0x00001fff
60 xor r28, r28, r31
61
62 mfcehl r30, r31
63 sw r30, [r0, PT_CEH]
64 sw r31, [r0, PT_CEL]
65
66 mfcr r31, cr0
67 sw r31, [r0, PT_PSR]
68
69 mfcr r31, cr1
70 sw r31, [r0, PT_CONDITION]
71
72 mfcr r31, cr2
73 sw r31, [r0, PT_ECR]
74
75 mfcr r31, cr5
76 srli r31, r31, 1
77 slli r31, r31, 1
78 sw r31, [r0, PT_EPC]
79.endm
80
81.macro RESTORE_ALL_AND_RET
82 mfcr r30, cr0
83 srli r30, r30, 1
84 slli r30, r30, 1
85 mtcr r30, cr0
86 nop
87 nop
88 nop
89 nop
90 nop
91
92 .set r1
93 ldis r1, 0x00ff
94 and r30, r30, r1
95 not r1, r1
96 lw r31, [r0, PT_PSR]
97 and r31, r31, r1
98 .set nor1
99 or r31, r31, r30
100 mtcr r31, cr0
101 nop
102 nop
103 nop
104 nop
105 nop
106
107 lw r30, [r0, PT_CONDITION]
108 mtcr r30, cr1
109 nop
110 nop
111 nop
112 nop
113 nop
114
115 lw r30, [r0, PT_CEH]
116 lw r31, [r0, PT_CEL]
117 mtcehl r30, r31
118
119 .set r1
120 lw r1, [r0, PT_R1]
121 .set nor1
122 lw r2, [r0, PT_R2]
123 lw r3, [r0, PT_R3]
124 lw r4, [r0, PT_R4]
125 lw r5, [r0, PT_R5]
126 lw r6, [r0, PT_R6]
127 lw r7, [r0, PT_R7]
128
129 lw r8, [r0, PT_R8]
130 lw r9, [r0, PT_R9]
131 lw r10, [r0, PT_R10]
132 lw r11, [r0, PT_R11]
133 lw r12, [r0, PT_R12]
134 lw r13, [r0, PT_R13]
135 lw r14, [r0, PT_R14]
136 lw r15, [r0, PT_R15]
137
138 lw r16, [r0, PT_R16]
139 lw r17, [r0, PT_R17]
140 lw r18, [r0, PT_R18]
141 lw r19, [r0, PT_R19]
142 lw r20, [r0, PT_R20]
143 lw r21, [r0, PT_R21]
144 lw r22, [r0, PT_R22]
145 lw r23, [r0, PT_R23]
146
147 lw r24, [r0, PT_R24]
148 lw r25, [r0, PT_R25]
149 lw r26, [r0, PT_R26]
150 lw r27, [r0, PT_R27]
151 lw r28, [r0, PT_R28]
152 lw r29, [r0, PT_R29]
153
154 lw r30, [r0, PT_EPC]
155 lw r0, [r0, PT_R0]
156 mtcr r30, cr5
157 rte
158.endm
159
160#endif /* __ASSEMBLY__ */
161#endif /* _ASM_SCORE_ASMMACRO_H */
diff --git a/arch/score/include/asm/atomic.h b/arch/score/include/asm/atomic.h
new file mode 100644
index 000000000000..84eb8ddf9f3f
--- /dev/null
+++ b/arch/score/include/asm/atomic.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_ATOMIC_H
2#define _ASM_SCORE_ATOMIC_H
3
4#include <asm-generic/atomic.h>
5
6#endif /* _ASM_SCORE_ATOMIC_H */
diff --git a/arch/score/include/asm/auxvec.h b/arch/score/include/asm/auxvec.h
new file mode 100644
index 000000000000..f69151565aee
--- /dev/null
+++ b/arch/score/include/asm/auxvec.h
@@ -0,0 +1,4 @@
1#ifndef _ASM_SCORE_AUXVEC_H
2#define _ASM_SCORE_AUXVEC_H
3
4#endif /* _ASM_SCORE_AUXVEC_H */
diff --git a/arch/score/include/asm/bitops.h b/arch/score/include/asm/bitops.h
new file mode 100644
index 000000000000..2763b050fca8
--- /dev/null
+++ b/arch/score/include/asm/bitops.h
@@ -0,0 +1,16 @@
1#ifndef _ASM_SCORE_BITOPS_H
2#define _ASM_SCORE_BITOPS_H
3
4#include <asm/byteorder.h> /* swab32 */
5#include <asm/system.h> /* save_flags */
6
7/*
8 * clear_bit() doesn't provide any barrier for the compiler.
9 */
10#define smp_mb__before_clear_bit() barrier()
11#define smp_mb__after_clear_bit() barrier()
12
13#include <asm-generic/bitops.h>
14#include <asm-generic/bitops/__fls.h>
15
16#endif /* _ASM_SCORE_BITOPS_H */
diff --git a/arch/score/include/asm/bitsperlong.h b/arch/score/include/asm/bitsperlong.h
new file mode 100644
index 000000000000..86ff337aa459
--- /dev/null
+++ b/arch/score/include/asm/bitsperlong.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_BITSPERLONG_H
2#define _ASM_SCORE_BITSPERLONG_H
3
4#include <asm-generic/bitsperlong.h>
5
6#endif /* _ASM_SCORE_BITSPERLONG_H */
diff --git a/arch/score/include/asm/bug.h b/arch/score/include/asm/bug.h
new file mode 100644
index 000000000000..bb76a330bcf1
--- /dev/null
+++ b/arch/score/include/asm/bug.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_BUG_H
2#define _ASM_SCORE_BUG_H
3
4#include <asm-generic/bug.h>
5
6#endif /* _ASM_SCORE_BUG_H */
diff --git a/arch/score/include/asm/bugs.h b/arch/score/include/asm/bugs.h
new file mode 100644
index 000000000000..a062e1056bb3
--- /dev/null
+++ b/arch/score/include/asm/bugs.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_BUGS_H
2#define _ASM_SCORE_BUGS_H
3
4#include <asm-generic/bugs.h>
5
6#endif /* _ASM_SCORE_BUGS_H */
diff --git a/arch/score/include/asm/byteorder.h b/arch/score/include/asm/byteorder.h
new file mode 100644
index 000000000000..88cbebc79212
--- /dev/null
+++ b/arch/score/include/asm/byteorder.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_BYTEORDER_H
2#define _ASM_SCORE_BYTEORDER_H
3
4#include <linux/byteorder/little_endian.h>
5
6#endif /* _ASM_SCORE_BYTEORDER_H */
diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
new file mode 100644
index 000000000000..ae3d59f2d2c4
--- /dev/null
+++ b/arch/score/include/asm/cache.h
@@ -0,0 +1,7 @@
1#ifndef _ASM_SCORE_CACHE_H
2#define _ASM_SCORE_CACHE_H
3
4#define L1_CACHE_SHIFT 4
5#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
6
7#endif /* _ASM_SCORE_CACHE_H */
diff --git a/arch/score/include/asm/cacheflush.h b/arch/score/include/asm/cacheflush.h
new file mode 100644
index 000000000000..07cc8fc457cd
--- /dev/null
+++ b/arch/score/include/asm/cacheflush.h
@@ -0,0 +1,45 @@
1#ifndef _ASM_SCORE_CACHEFLUSH_H
2#define _ASM_SCORE_CACHEFLUSH_H
3
4/* Keep includes the same across arches. */
5#include <linux/mm.h>
6
7extern void flush_cache_all(void);
8extern void flush_cache_mm(struct mm_struct *mm);
9extern void flush_cache_range(struct vm_area_struct *vma,
10 unsigned long start, unsigned long end);
11extern void flush_cache_page(struct vm_area_struct *vma,
12 unsigned long page, unsigned long pfn);
13extern void flush_cache_sigtramp(unsigned long addr);
14extern void flush_icache_all(void);
15extern void flush_icache_range(unsigned long start, unsigned long end);
16extern void flush_dcache_range(unsigned long start, unsigned long end);
17
18#define flush_cache_dup_mm(mm) do {} while (0)
19#define flush_dcache_page(page) do {} while (0)
20#define flush_dcache_mmap_lock(mapping) do {} while (0)
21#define flush_dcache_mmap_unlock(mapping) do {} while (0)
22#define flush_cache_vmap(start, end) do {} while (0)
23#define flush_cache_vunmap(start, end) do {} while (0)
24
25static inline void flush_icache_page(struct vm_area_struct *vma,
26 struct page *page)
27{
28 if (vma->vm_flags & VM_EXEC) {
29 void *v = page_address(page);
30 flush_icache_range((unsigned long) v,
31 (unsigned long) v + PAGE_SIZE);
32 }
33}
34
35#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
36 memcpy(dst, src, len)
37
38#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
39 do { \
40 memcpy(dst, src, len); \
41 if ((vma->vm_flags & VM_EXEC)) \
42 flush_cache_page(vma, vaddr, page_to_pfn(page));\
43 } while (0)
44
45#endif /* _ASM_SCORE_CACHEFLUSH_H */
diff --git a/arch/score/include/asm/checksum.h b/arch/score/include/asm/checksum.h
new file mode 100644
index 000000000000..f909ac3144a4
--- /dev/null
+++ b/arch/score/include/asm/checksum.h
@@ -0,0 +1,235 @@
1#ifndef _ASM_SCORE_CHECKSUM_H
2#define _ASM_SCORE_CHECKSUM_H
3
4#include <linux/in6.h>
5#include <asm/uaccess.h>
6
7/*
8 * computes the checksum of a memory block at buff, length len,
9 * and adds in "sum" (32-bit)
10 *
11 * returns a 32-bit number suitable for feeding into itself
12 * or csum_tcpudp_magic
13 *
14 * this function must be called with even lengths, except
15 * for the last fragment, which may be odd
16 *
17 * it's best to have buff aligned on a 32-bit boundary
18 */
19unsigned int csum_partial(const void *buff, int len, __wsum sum);
20unsigned int csum_partial_copy_from_user(const char *src, char *dst, int len,
21 unsigned int sum, int *csum_err);
22unsigned int csum_partial_copy(const char *src, char *dst,
23 int len, unsigned int sum);
24
25/*
26 * this is a new version of the above that records errors it finds in *errp,
27 * but continues and zeros the rest of the buffer.
28 */
29
30/*
31 * Copy and checksum to user
32 */
33#define HAVE_CSUM_COPY_USER
34static inline
35__wsum csum_and_copy_to_user(const void *src, void __user *dst, int len,
36 __wsum sum, int *err_ptr)
37{
38 sum = csum_partial(src, len, sum);
39 if (copy_to_user(dst, src, len)) {
40 *err_ptr = -EFAULT;
41 return (__force __wsum) -1; /* invalid checksum */
42 }
43 return sum;
44}
45
46
47#define csum_partial_copy_nocheck csum_partial_copy
48/*
49 * Fold a partial checksum without adding pseudo headers
50 */
51
52static inline __sum16 csum_fold(__wsum sum)
53{
54 /* the while loop is unnecessary really, it's always enough with two
55 iterations */
56 __asm__ __volatile__(
57 ".set volatile\n\t"
58 ".set\tr1\n\t"
59 "slli\tr1,%0, 16\n\t"
60 "add\t%0,%0, r1\n\t"
61 "cmp.c\tr1, %0\n\t"
62 "srli\t%0, %0, 16\n\t"
63 "bleu\t1f\n\t"
64 "addi\t%0, 0x1\n\t"
65 "1:ldi\tr30, 0xffff\n\t"
66 "xor\t%0, %0, r30\n\t"
67 "slli\t%0, %0, 16\n\t"
68 "srli\t%0, %0, 16\n\t"
69 ".set\tnor1\n\t"
70 ".set optimize\n\t"
71 : "=r" (sum)
72 : "0" (sum));
73 return sum;
74}
75
76/*
77 * This is a version of ip_compute_csum() optimized for IP headers,
78 * which always checksum on 4 octet boundaries.
79 *
80 * By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by
81 * Arnt Gulbrandsen.
82 */
83static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
84{
85 unsigned int sum;
86 unsigned long dummy;
87
88 __asm__ __volatile__(
89 ".set volatile\n\t"
90 ".set\tnor1\n\t"
91 "lw\t%0, [%1]\n\t"
92 "subri\t%2, %2, 4\n\t"
93 "slli\t%2, %2, 2\n\t"
94 "lw\t%3, [%1, 4]\n\t"
95 "add\t%2, %2, %1\n\t"
96 "add\t%0, %0, %3\n\t"
97 "cmp.c\t%3, %0\n\t"
98 "lw\t%3, [%1, 8]\n\t"
99 "bleu\t1f\n\t"
100 "addi\t%0, 0x1\n\t"
101 "1:\n\t"
102 "add\t%0, %0, %3\n\t"
103 "cmp.c\t%3, %0\n\t"
104 "lw\t%3, [%1, 12]\n\t"
105 "bleu\t1f\n\t"
106 "addi\t%0, 0x1\n\t"
107 "1:add\t%0, %0, %3\n\t"
108 "cmp.c\t%3, %0\n\t"
109 "bleu\t1f\n\t"
110 "addi\t%0, 0x1\n"
111
112 "1:\tlw\t%3, [%1, 16]\n\t"
113 "addi\t%1, 4\n\t"
114 "add\t%0, %0, %3\n\t"
115 "cmp.c\t%3, %0\n\t"
116 "bleu\t2f\n\t"
117 "addi\t%0, 0x1\n"
118 "2:cmp.c\t%2, %1\n\t"
119 "bne\t1b\n\t"
120
121 ".set\tr1\n\t"
122 ".set optimize\n\t"
123 : "=&r" (sum), "=&r" (iph), "=&r" (ihl), "=&r" (dummy)
124 : "1" (iph), "2" (ihl));
125
126 return csum_fold(sum);
127}
128
129static inline __wsum
130csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
131 unsigned short proto, __wsum sum)
132{
133 unsigned long tmp = (ntohs(len) << 16) + proto * 256;
134 __asm__ __volatile__(
135 ".set volatile\n\t"
136 "add\t%0, %0, %2\n\t"
137 "cmp.c\t%2, %0\n\t"
138 "bleu\t1f\n\t"
139 "addi\t%0, 0x1\n\t"
140 "1:\n\t"
141 "add\t%0, %0, %3\n\t"
142 "cmp.c\t%3, %0\n\t"
143 "bleu\t1f\n\t"
144 "addi\t%0, 0x1\n\t"
145 "1:\n\t"
146 "add\t%0, %0, %4\n\t"
147 "cmp.c\t%4, %0\n\t"
148 "bleu\t1f\n\t"
149 "addi\t%0, 0x1\n\t"
150 "1:\n\t"
151 ".set optimize\n\t"
152 : "=r" (sum)
153 : "0" (daddr), "r"(saddr),
154 "r" (tmp),
155 "r" (sum));
156 return sum;
157}
158
159/*
160 * computes the checksum of the TCP/UDP pseudo-header
161 * returns a 16-bit checksum, already complemented
162 */
163static inline __sum16
164csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
165 unsigned short proto, __wsum sum)
166{
167 return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
168}
169
170/*
171 * this routine is used for miscellaneous IP-like checksums, mainly
172 * in icmp.c
173 */
174
175static inline unsigned short ip_compute_csum(const void *buff, int len)
176{
177 return csum_fold(csum_partial(buff, len, 0));
178}
179
180#define _HAVE_ARCH_IPV6_CSUM
181static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
182 const struct in6_addr *daddr,
183 __u32 len, unsigned short proto,
184 __wsum sum)
185{
186 __asm__ __volatile__(
187 ".set\tnoreorder\t\t\t# csum_ipv6_magic\n\t"
188 ".set\tnoat\n\t"
189 "addu\t%0, %5\t\t\t# proto (long in network byte order)\n\t"
190 "sltu\t$1, %0, %5\n\t"
191 "addu\t%0, $1\n\t"
192 "addu\t%0, %6\t\t\t# csum\n\t"
193 "sltu\t$1, %0, %6\n\t"
194 "lw\t%1, 0(%2)\t\t\t# four words source address\n\t"
195 "addu\t%0, $1\n\t"
196 "addu\t%0, %1\n\t"
197 "sltu\t$1, %0, %1\n\t"
198 "lw\t%1, 4(%2)\n\t"
199 "addu\t%0, $1\n\t"
200 "addu\t%0, %1\n\t"
201 "sltu\t$1, %0, %1\n\t"
202 "lw\t%1, 8(%2)\n\t"
203 "addu\t%0, $1\n\t"
204 "addu\t%0, %1\n\t"
205 "sltu\t$1, %0, %1\n\t"
206 "lw\t%1, 12(%2)\n\t"
207 "addu\t%0, $1\n\t"
208 "addu\t%0, %1\n\t"
209 "sltu\t$1, %0, %1\n\t"
210 "lw\t%1, 0(%3)\n\t"
211 "addu\t%0, $1\n\t"
212 "addu\t%0, %1\n\t"
213 "sltu\t$1, %0, %1\n\t"
214 "lw\t%1, 4(%3)\n\t"
215 "addu\t%0, $1\n\t"
216 "addu\t%0, %1\n\t"
217 "sltu\t$1, %0, %1\n\t"
218 "lw\t%1, 8(%3)\n\t"
219 "addu\t%0, $1\n\t"
220 "addu\t%0, %1\n\t"
221 "sltu\t$1, %0, %1\n\t"
222 "lw\t%1, 12(%3)\n\t"
223 "addu\t%0, $1\n\t"
224 "addu\t%0, %1\n\t"
225 "sltu\t$1, %0, %1\n\t"
226 "addu\t%0, $1\t\t\t# Add final carry\n\t"
227 ".set\tnoat\n\t"
228 ".set\tnoreorder"
229 : "=r" (sum), "=r" (proto)
230 : "r" (saddr), "r" (daddr),
231 "0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
232
233 return csum_fold(sum);
234}
235#endif /* _ASM_SCORE_CHECKSUM_H */
diff --git a/arch/score/include/asm/cputime.h b/arch/score/include/asm/cputime.h
new file mode 100644
index 000000000000..1fced99f0d67
--- /dev/null
+++ b/arch/score/include/asm/cputime.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_CPUTIME_H
2#define _ASM_SCORE_CPUTIME_H
3
4#include <asm-generic/cputime.h>
5
6#endif /* _ASM_SCORE_CPUTIME_H */
diff --git a/arch/score/include/asm/current.h b/arch/score/include/asm/current.h
new file mode 100644
index 000000000000..16eae9cbaf1a
--- /dev/null
+++ b/arch/score/include/asm/current.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_CURRENT_H
2#define _ASM_SCORE_CURRENT_H
3
4#include <asm-generic/current.h>
5
6#endif /* _ASM_SCORE_CURRENT_H */
diff --git a/arch/score/include/asm/delay.h b/arch/score/include/asm/delay.h
new file mode 100644
index 000000000000..6726ec199dc0
--- /dev/null
+++ b/arch/score/include/asm/delay.h
@@ -0,0 +1,26 @@
1#ifndef _ASM_SCORE_DELAY_H
2#define _ASM_SCORE_DELAY_H
3
4static inline void __delay(unsigned long loops)
5{
6 /* 3 cycles per loop. */
7 __asm__ __volatile__ (
8 "1:\tsubi\t%0, 3\n\t"
9 "cmpz.c\t%0\n\t"
10 "ble\t1b\n\t"
11 : "=r" (loops)
12 : "0" (loops));
13}
14
15static inline void __udelay(unsigned long usecs)
16{
17 unsigned long loops_per_usec;
18
19 loops_per_usec = (loops_per_jiffy * HZ) / 1000000;
20
21 __delay(usecs * loops_per_usec);
22}
23
24#define udelay(usecs) __udelay(usecs)
25
26#endif /* _ASM_SCORE_DELAY_H */
diff --git a/arch/score/include/asm/device.h b/arch/score/include/asm/device.h
new file mode 100644
index 000000000000..2dc7cc5d5ef9
--- /dev/null
+++ b/arch/score/include/asm/device.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_DEVICE_H
2#define _ASM_SCORE_DEVICE_H
3
4#include <asm-generic/device.h>
5
6#endif /* _ASM_SCORE_DEVICE_H */
diff --git a/arch/score/include/asm/div64.h b/arch/score/include/asm/div64.h
new file mode 100644
index 000000000000..75fae19824eb
--- /dev/null
+++ b/arch/score/include/asm/div64.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_DIV64_H
2#define _ASM_SCORE_DIV64_H
3
4#include <asm-generic/div64.h>
5
6#endif /* _ASM_SCORE_DIV64_H */
diff --git a/arch/score/include/asm/dma-mapping.h b/arch/score/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..f9c0193c7a53
--- /dev/null
+++ b/arch/score/include/asm/dma-mapping.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_DMA_MAPPING_H
2#define _ASM_SCORE_DMA_MAPPING_H
3
4#include <asm-generic/dma-mapping-broken.h>
5
6#endif /* _ASM_SCORE_DMA_MAPPING_H */
diff --git a/arch/score/include/asm/dma.h b/arch/score/include/asm/dma.h
new file mode 100644
index 000000000000..9f44185298bf
--- /dev/null
+++ b/arch/score/include/asm/dma.h
@@ -0,0 +1,8 @@
1#ifndef _ASM_SCORE_DMA_H
2#define _ASM_SCORE_DMA_H
3
4#include <asm/io.h>
5
6#define MAX_DMA_ADDRESS (0)
7
8#endif /* _ASM_SCORE_DMA_H */
diff --git a/arch/score/include/asm/elf.h b/arch/score/include/asm/elf.h
new file mode 100644
index 000000000000..43526d9fda93
--- /dev/null
+++ b/arch/score/include/asm/elf.h
@@ -0,0 +1,103 @@
1#ifndef _ASM_SCORE_ELF_H
2#define _ASM_SCORE_ELF_H
3
4#include <linux/ptrace.h>
5
6#define EM_SCORE7 135
7
8/* Relocation types. */
9#define R_SCORE_NONE 0
10#define R_SCORE_HI16 1
11#define R_SCORE_LO16 2
12#define R_SCORE_BCMP 3
13#define R_SCORE_24 4
14#define R_SCORE_PC19 5
15#define R_SCORE16_11 6
16#define R_SCORE16_PC8 7
17#define R_SCORE_ABS32 8
18#define R_SCORE_ABS16 9
19#define R_SCORE_DUMMY2 10
20#define R_SCORE_GP15 11
21#define R_SCORE_GNU_VTINHERIT 12
22#define R_SCORE_GNU_VTENTRY 13
23#define R_SCORE_GOT15 14
24#define R_SCORE_GOT_LO16 15
25#define R_SCORE_CALL15 16
26#define R_SCORE_GPREL32 17
27#define R_SCORE_REL32 18
28#define R_SCORE_DUMMY_HI16 19
29#define R_SCORE_IMM30 20
30#define R_SCORE_IMM32 21
31
32/* ELF register definitions */
33typedef unsigned long elf_greg_t;
34
35#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
36typedef elf_greg_t elf_gregset_t[ELF_NGREG];
37
38/* Score does not have fp regs. */
39typedef double elf_fpreg_t;
40typedef elf_fpreg_t elf_fpregset_t;
41
42#define elf_check_arch(x) ((x)->e_machine == EM_SCORE7)
43
44/*
45 * These are used to set parameters in the core dumps.
46 */
47#define ELF_CLASS ELFCLASS32
48
49/*
50 * These are used to set parameters in the core dumps.
51 */
52#define ELF_DATA ELFDATA2LSB
53#define ELF_ARCH EM_SCORE7
54
55#define SET_PERSONALITY(ex) \
56do { \
57 set_personality(PER_LINUX); \
58} while (0)
59
60struct task_struct;
61struct pt_regs;
62
63#define CORE_DUMP_USE_REGSET
64#define USE_ELF_CORE_DUMP
65#define ELF_EXEC_PAGESIZE PAGE_SIZE
66
67/* This yields a mask that user programs can use to figure out what
68 instruction set this cpu supports. This could be done in userspace,
69 but it's not easy, and we've already done it here. */
70
71#define ELF_HWCAP (0)
72
73/* This yields a string that ld.so will use to load implementation
74 specific libraries for optimization. This is more specific in
75 intent than poking at uname or /proc/cpuinfo.
76
77 For the moment, we have only optimizations for the Intel generations,
78 but that could change... */
79
80#define ELF_PLATFORM (NULL)
81
82#define ELF_PLAT_INIT(_r, load_addr) \
83do { \
84 _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0; \
85 _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0; \
86 _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0; \
87 _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0; \
88 _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0; \
89 _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0; \
90 _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0; \
91 _r->regs[30] = _r->regs[31] = 0; \
92} while (0)
93
94/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
95 use of this is to invoke "./ld.so someprog" to test out a new version of
96 the loader. We need to make sure that it is out of the way of the program
97 that it will "exec", and that there is sufficient room for the brk. */
98
99#ifndef ELF_ET_DYN_BASE
100#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
101#endif
102
103#endif /* _ASM_SCORE_ELF_H */
diff --git a/arch/score/include/asm/emergency-restart.h b/arch/score/include/asm/emergency-restart.h
new file mode 100644
index 000000000000..ca31e9803a8a
--- /dev/null
+++ b/arch/score/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_EMERGENCY_RESTART_H
2#define _ASM_SCORE_EMERGENCY_RESTART_H
3
4#include <asm-generic/emergency-restart.h>
5
6#endif /* _ASM_SCORE_EMERGENCY_RESTART_H */
diff --git a/arch/score/include/asm/errno.h b/arch/score/include/asm/errno.h
new file mode 100644
index 000000000000..29ff39d5ab47
--- /dev/null
+++ b/arch/score/include/asm/errno.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_ERRNO_H
2#define _ASM_SCORE_ERRNO_H
3
4#include <asm-generic/errno.h>
5
6#endif /* _ASM_SCORE_ERRNO_H */
diff --git a/arch/score/include/asm/fcntl.h b/arch/score/include/asm/fcntl.h
new file mode 100644
index 000000000000..03968a3103a4
--- /dev/null
+++ b/arch/score/include/asm/fcntl.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_FCNTL_H
2#define _ASM_SCORE_FCNTL_H
3
4#include <asm-generic/fcntl.h>
5
6#endif /* _ASM_SCORE_FCNTL_H */
diff --git a/arch/score/include/asm/fixmap.h b/arch/score/include/asm/fixmap.h
new file mode 100644
index 000000000000..ee1676694024
--- /dev/null
+++ b/arch/score/include/asm/fixmap.h
@@ -0,0 +1,82 @@
1#ifndef _ASM_SCORE_FIXMAP_H
2#define _ASM_SCORE_FIXMAP_H
3
4#include <asm/page.h>
5
6#define PHY_RAM_BASE 0x00000000
7#define PHY_IO_BASE 0x10000000
8
9#define VIRTUAL_RAM_BASE 0xa0000000
10#define VIRTUAL_IO_BASE 0xb0000000
11
12#define RAM_SPACE_SIZE 0x10000000
13#define IO_SPACE_SIZE 0x10000000
14
15/* Kernel unmapped, cached 512MB */
16#define KSEG1 0xa0000000
17
18/*
19 * Here we define all the compile-time 'special' virtual
20 * addresses. The point is to have a constant address at
21 * compile time, but to set the physical address only
22 * in the boot process. We allocate these special addresses
23 * from the end of virtual memory (0xfffff000) backwards.
24 * Also this lets us do fail-safe vmalloc(), we
25 * can guarantee that these special addresses and
26 * vmalloc()-ed addresses never overlap.
27 *
28 * these 'compile-time allocated' memory buffers are
29 * fixed-size 4k pages. (or larger if used with an increment
30 * highger than 1) use fixmap_set(idx,phys) to associate
31 * physical memory with fixmap indices.
32 *
33 * TLB entries of such buffers will not be flushed across
34 * task switches.
35 */
36
37/*
38 * on UP currently we will have no trace of the fixmap mechanizm,
39 * no page table allocations, etc. This might change in the
40 * future, say framebuffers for the console driver(s) could be
41 * fix-mapped?
42 */
43enum fixed_addresses {
44#define FIX_N_COLOURS 8
45 FIX_CMAP_BEGIN,
46 FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
47 __end_of_fixed_addresses
48};
49
50/*
51 * used by vmalloc.c.
52 *
53 * Leave one empty page between vmalloc'ed areas and
54 * the start of the fixmap, and leave one page empty
55 * at the top of mem..
56 */
57#define FIXADDR_TOP ((unsigned long)(long)(int)0xfefe0000)
58#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
59#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
60
61#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
62#define __virt_to_fix(x) \
63 ((FIXADDR_TOP - ((x) & PAGE_MASK)) >> PAGE_SHIFT)
64
65extern void __this_fixmap_does_not_exist(void);
66
67/*
68 * 'index to address' translation. If anyone tries to use the idx
69 * directly without tranlation, we catch the bug with a NULL-deference
70 * kernel oops. Illegal ranges of incoming indices are caught too.
71 */
72static inline unsigned long fix_to_virt(const unsigned int idx)
73{
74 return __fix_to_virt(idx);
75}
76
77static inline unsigned long virt_to_fix(const unsigned long vaddr)
78{
79 return __virt_to_fix(vaddr);
80}
81
82#endif /* _ASM_SCORE_FIXMAP_H */
diff --git a/arch/score/include/asm/ftrace.h b/arch/score/include/asm/ftrace.h
new file mode 100644
index 000000000000..79d6f10e1f5b
--- /dev/null
+++ b/arch/score/include/asm/ftrace.h
@@ -0,0 +1,4 @@
1#ifndef _ASM_SCORE_FTRACE_H
2#define _ASM_SCORE_FTRACE_H
3
4#endif /* _ASM_SCORE_FTRACE_H */
diff --git a/arch/score/include/asm/futex.h b/arch/score/include/asm/futex.h
new file mode 100644
index 000000000000..1dca2420f8db
--- /dev/null
+++ b/arch/score/include/asm/futex.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_FUTEX_H
2#define _ASM_SCORE_FUTEX_H
3
4#include <asm-generic/futex.h>
5
6#endif /* _ASM_SCORE_FUTEX_H */
diff --git a/arch/score/include/asm/hardirq.h b/arch/score/include/asm/hardirq.h
new file mode 100644
index 000000000000..dc932c50d3ee
--- /dev/null
+++ b/arch/score/include/asm/hardirq.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_HARDIRQ_H
2#define _ASM_SCORE_HARDIRQ_H
3
4#include <asm-generic/hardirq.h>
5
6#endif /* _ASM_SCORE_HARDIRQ_H */
diff --git a/arch/score/include/asm/hw_irq.h b/arch/score/include/asm/hw_irq.h
new file mode 100644
index 000000000000..4caafb2b509a
--- /dev/null
+++ b/arch/score/include/asm/hw_irq.h
@@ -0,0 +1,4 @@
1#ifndef _ASM_SCORE_HW_IRQ_H
2#define _ASM_SCORE_HW_IRQ_H
3
4#endif /* _ASM_SCORE_HW_IRQ_H */
diff --git a/arch/score/include/asm/io.h b/arch/score/include/asm/io.h
new file mode 100644
index 000000000000..fbbfd7132e3b
--- /dev/null
+++ b/arch/score/include/asm/io.h
@@ -0,0 +1,9 @@
1#ifndef _ASM_SCORE_IO_H
2#define _ASM_SCORE_IO_H
3
4#include <asm-generic/io.h>
5
6#define virt_to_bus virt_to_phys
7#define bus_to_virt phys_to_virt
8
9#endif /* _ASM_SCORE_IO_H */
diff --git a/arch/score/include/asm/ioctl.h b/arch/score/include/asm/ioctl.h
new file mode 100644
index 000000000000..a351d2194bfd
--- /dev/null
+++ b/arch/score/include/asm/ioctl.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_IOCTL_H
2#define _ASM_SCORE_IOCTL_H
3
4#include <asm-generic/ioctl.h>
5
6#endif /* _ASM_SCORE_IOCTL_H */
diff --git a/arch/score/include/asm/ioctls.h b/arch/score/include/asm/ioctls.h
new file mode 100644
index 000000000000..ed01d2b9aeab
--- /dev/null
+++ b/arch/score/include/asm/ioctls.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_IOCTLS_H
2#define _ASM_SCORE_IOCTLS_H
3
4#include <asm-generic/ioctls.h>
5
6#endif /* _ASM_SCORE_IOCTLS_H */
diff --git a/arch/score/include/asm/ipcbuf.h b/arch/score/include/asm/ipcbuf.h
new file mode 100644
index 000000000000..e082ceff1818
--- /dev/null
+++ b/arch/score/include/asm/ipcbuf.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_IPCBUF_H
2#define _ASM_SCORE_IPCBUF_H
3
4#include <asm-generic/ipcbuf.h>
5
6#endif /* _ASM_SCORE_IPCBUF_H */
diff --git a/arch/score/include/asm/irq.h b/arch/score/include/asm/irq.h
new file mode 100644
index 000000000000..c883f3df33fa
--- /dev/null
+++ b/arch/score/include/asm/irq.h
@@ -0,0 +1,25 @@
1#ifndef _ASM_SCORE_IRQ_H
2#define _ASM_SCORE_IRQ_H
3
4#define EXCEPTION_VECTOR_BASE_ADDR 0xa0000000
5#define VECTOR_ADDRESS_OFFSET_MODE4 0
6#define VECTOR_ADDRESS_OFFSET_MODE16 1
7
8#define DEBUG_VECTOR_SIZE (0x4)
9#define DEBUG_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x1fc)
10
11#define GENERAL_VECTOR_SIZE (0x10)
12#define GENERAL_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x200)
13
14#define NR_IRQS 64
15#define IRQ_VECTOR_SIZE (0x10)
16#define IRQ_VECTOR_BASE_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x210)
17#define IRQ_VECTOR_END_ADDR ((EXCEPTION_VECTOR_BASE_ADDR) + 0x5f0)
18
19#define irq_canonicalize(irq) (irq)
20
21#define IRQ_TIMER (7) /* Timer IRQ number of SPCT6600 */
22
23extern void interrupt_exception_vector(void);
24
25#endif /* _ASM_SCORE_IRQ_H */
diff --git a/arch/score/include/asm/irq_regs.h b/arch/score/include/asm/irq_regs.h
new file mode 100644
index 000000000000..b8e881c9a69f
--- /dev/null
+++ b/arch/score/include/asm/irq_regs.h
@@ -0,0 +1,11 @@
1#ifndef _ASM_SCORE_IRQ_REGS_H
2#define _ASM_SCORE_IRQ_REGS_H
3
4#include <linux/thread_info.h>
5
6static inline struct pt_regs *get_irq_regs(void)
7{
8 return current_thread_info()->regs;
9}
10
11#endif /* _ASM_SCORE_IRQ_REGS_H */
diff --git a/arch/score/include/asm/irqflags.h b/arch/score/include/asm/irqflags.h
new file mode 100644
index 000000000000..690a6cae7294
--- /dev/null
+++ b/arch/score/include/asm/irqflags.h
@@ -0,0 +1,109 @@
1#ifndef _ASM_SCORE_IRQFLAGS_H
2#define _ASM_SCORE_IRQFLAGS_H
3
4#ifndef __ASSEMBLY__
5
6#define raw_local_irq_save(x) \
7{ \
8 __asm__ __volatile__( \
9 "mfcr r8, cr0;" \
10 "li r9, 0xfffffffe;" \
11 "nop;" \
12 "mv %0, r8;" \
13 "and r8, r8, r9;" \
14 "mtcr r8, cr0;" \
15 "nop;" \
16 "nop;" \
17 "nop;" \
18 "nop;" \
19 "nop;" \
20 : "=r" (x) \
21 : \
22 : "r8", "r9" \
23 ); \
24}
25
26#define raw_local_irq_restore(x) \
27{ \
28 __asm__ __volatile__( \
29 "mfcr r8, cr0;" \
30 "ldi r9, 0x1;" \
31 "and %0, %0, r9;" \
32 "or r8, r8, %0;" \
33 "mtcr r8, cr0;" \
34 "nop;" \
35 "nop;" \
36 "nop;" \
37 "nop;" \
38 "nop;" \
39 : \
40 : "r"(x) \
41 : "r8", "r9" \
42 ); \
43}
44
45#define raw_local_irq_enable(void) \
46{ \
47 __asm__ __volatile__( \
48 "mfcr\tr8,cr0;" \
49 "nop;" \
50 "nop;" \
51 "ori\tr8,0x1;" \
52 "mtcr\tr8,cr0;" \
53 "nop;" \
54 "nop;" \
55 "nop;" \
56 "nop;" \
57 "nop;" \
58 : \
59 : \
60 : "r8"); \
61}
62
63#define raw_local_irq_disable(void) \
64{ \
65 __asm__ __volatile__( \
66 "mfcr\tr8,cr0;" \
67 "nop;" \
68 "nop;" \
69 "srli\tr8,r8,1;" \
70 "slli\tr8,r8,1;" \
71 "mtcr\tr8,cr0;" \
72 "nop;" \
73 "nop;" \
74 "nop;" \
75 "nop;" \
76 "nop;" \
77 : \
78 : \
79 : "r8"); \
80}
81
82#define raw_local_save_flags(x) \
83{ \
84 __asm__ __volatile__( \
85 "mfcr r8, cr0;" \
86 "nop;" \
87 "nop;" \
88 "mv %0, r8;" \
89 "nop;" \
90 "nop;" \
91 "nop;" \
92 "nop;" \
93 "nop;" \
94 "ldi r9, 0x1;" \
95 "and %0, %0, r9;" \
96 : "=r" (x) \
97 : \
98 : "r8", "r9" \
99 ); \
100}
101
102static inline int raw_irqs_disabled_flags(unsigned long flags)
103{
104 return !(flags & 1);
105}
106
107#endif
108
109#endif /* _ASM_SCORE_IRQFLAGS_H */
diff --git a/arch/score/include/asm/kdebug.h b/arch/score/include/asm/kdebug.h
new file mode 100644
index 000000000000..a666e513f747
--- /dev/null
+++ b/arch/score/include/asm/kdebug.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_KDEBUG_H
2#define _ASM_SCORE_KDEBUG_H
3
4#include <asm-generic/kdebug.h>
5
6#endif /* _ASM_SCORE_KDEBUG_H */
diff --git a/arch/score/include/asm/kmap_types.h b/arch/score/include/asm/kmap_types.h
new file mode 100644
index 000000000000..6c46eb5077d3
--- /dev/null
+++ b/arch/score/include/asm/kmap_types.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_KMAP_TYPES_H
2#define _ASM_SCORE_KMAP_TYPES_H
3
4#include <asm-generic/kmap_types.h>
5
6#endif /* _ASM_SCORE_KMAP_TYPES_H */
diff --git a/arch/score/include/asm/linkage.h b/arch/score/include/asm/linkage.h
new file mode 100644
index 000000000000..2323a8ecf445
--- /dev/null
+++ b/arch/score/include/asm/linkage.h
@@ -0,0 +1,7 @@
1#ifndef _ASM_SCORE_LINKAGE_H
2#define _ASM_SCORE_LINKAGE_H
3
4#define __ALIGN .align 2
5#define __ALIGN_STR ".align 2"
6
7#endif /* _ASM_SCORE_LINKAGE_H */
diff --git a/arch/score/include/asm/local.h b/arch/score/include/asm/local.h
new file mode 100644
index 000000000000..7e02f13dbba8
--- /dev/null
+++ b/arch/score/include/asm/local.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_LOCAL_H
2#define _ASM_SCORE_LOCAL_H
3
4#include <asm-generic/local.h>
5
6#endif /* _ASM_SCORE_LOCAL_H */
diff --git a/arch/score/include/asm/mman.h b/arch/score/include/asm/mman.h
new file mode 100644
index 000000000000..84d85ddfed8d
--- /dev/null
+++ b/arch/score/include/asm/mman.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_MMAN_H
2#define _ASM_SCORE_MMAN_H
3
4#include <asm-generic/mman.h>
5
6#endif /* _ASM_SCORE_MMAN_H */
diff --git a/arch/score/include/asm/mmu.h b/arch/score/include/asm/mmu.h
new file mode 100644
index 000000000000..676828e4c10a
--- /dev/null
+++ b/arch/score/include/asm/mmu.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_MMU_H
2#define _ASM_SCORE_MMU_H
3
4typedef unsigned long mm_context_t;
5
6#endif /* _ASM_SCORE_MMU_H */
diff --git a/arch/score/include/asm/mmu_context.h b/arch/score/include/asm/mmu_context.h
new file mode 100644
index 000000000000..2644577c96e8
--- /dev/null
+++ b/arch/score/include/asm/mmu_context.h
@@ -0,0 +1,113 @@
1#ifndef _ASM_SCORE_MMU_CONTEXT_H
2#define _ASM_SCORE_MMU_CONTEXT_H
3
4#include <linux/errno.h>
5#include <linux/sched.h>
6#include <linux/slab.h>
7#include <asm-generic/mm_hooks.h>
8
9#include <asm/cacheflush.h>
10#include <asm/tlbflush.h>
11#include <asm/scoreregs.h>
12
13/*
14 * For the fast tlb miss handlers, we keep a per cpu array of pointers
15 * to the current pgd for each processor. Also, the proc. id is stuffed
16 * into the context register.
17 */
18extern unsigned long asid_cache;
19extern unsigned long pgd_current;
20
21#define TLBMISS_HANDLER_SETUP_PGD(pgd) (pgd_current = (unsigned long)(pgd))
22
23#define TLBMISS_HANDLER_SETUP() \
24do { \
25 write_c0_context(0); \
26 TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir) \
27} while (0)
28
29/*
30 * All unused by hardware upper bits will be considered
31 * as a software asid extension.
32 */
33#define ASID_VERSION_MASK 0xfffff000
34#define ASID_FIRST_VERSION 0x1000
35
36/* PEVN --------- VPN ---------- --ASID--- -NA- */
37/* binary: 0000 0000 0000 0000 0000 0000 0001 0000 */
38/* binary: 0000 0000 0000 0000 0000 1111 1111 0000 */
39#define ASID_INC 0x10
40#define ASID_MASK 0xff0
41
42static inline void enter_lazy_tlb(struct mm_struct *mm,
43 struct task_struct *tsk)
44{}
45
46static inline void
47get_new_mmu_context(struct mm_struct *mm)
48{
49 unsigned long asid = asid_cache + ASID_INC;
50
51 if (!(asid & ASID_MASK)) {
52 local_flush_tlb_all(); /* start new asid cycle */
53 if (!asid) /* fix version if needed */
54 asid = ASID_FIRST_VERSION;
55 }
56
57 mm->context = asid;
58 asid_cache = asid;
59}
60
61/*
62 * Initialize the context related info for a new mm_struct
63 * instance.
64 */
65static inline int
66init_new_context(struct task_struct *tsk, struct mm_struct *mm)
67{
68 mm->context = 0;
69 return 0;
70}
71
72static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
73 struct task_struct *tsk)
74{
75 unsigned long flags;
76
77 local_irq_save(flags);
78 if ((next->context ^ asid_cache) & ASID_VERSION_MASK)
79 get_new_mmu_context(next);
80
81 pevn_set(next->context);
82 TLBMISS_HANDLER_SETUP_PGD(next->pgd);
83 local_irq_restore(flags);
84}
85
86/*
87 * Destroy context related info for an mm_struct that is about
88 * to be put to rest.
89 */
90static inline void destroy_context(struct mm_struct *mm)
91{}
92
93static inline void
94deactivate_mm(struct task_struct *task, struct mm_struct *mm)
95{}
96
97/*
98 * After we have set current->mm to a new value, this activates
99 * the context for the new mm so we see the new mappings.
100 */
101static inline void
102activate_mm(struct mm_struct *prev, struct mm_struct *next)
103{
104 unsigned long flags;
105
106 local_irq_save(flags);
107 get_new_mmu_context(next);
108 pevn_set(next->context);
109 TLBMISS_HANDLER_SETUP_PGD(next->pgd);
110 local_irq_restore(flags);
111}
112
113#endif /* _ASM_SCORE_MMU_CONTEXT_H */
diff --git a/arch/score/include/asm/module.h b/arch/score/include/asm/module.h
new file mode 100644
index 000000000000..f0b5dc0bd023
--- /dev/null
+++ b/arch/score/include/asm/module.h
@@ -0,0 +1,39 @@
1#ifndef _ASM_SCORE_MODULE_H
2#define _ASM_SCORE_MODULE_H
3
4#include <linux/list.h>
5#include <asm/uaccess.h>
6
7struct mod_arch_specific {
8 /* Data Bus Error exception tables */
9 struct list_head dbe_list;
10 const struct exception_table_entry *dbe_start;
11 const struct exception_table_entry *dbe_end;
12};
13
14typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
15
16#define Elf_Shdr Elf32_Shdr
17#define Elf_Sym Elf32_Sym
18#define Elf_Ehdr Elf32_Ehdr
19#define Elf_Addr Elf32_Addr
20
21/* Given an address, look for it in the exception tables. */
22#ifdef CONFIG_MODULES
23const struct exception_table_entry *search_module_dbetables(unsigned long addr);
24#else
25static inline const struct exception_table_entry
26*search_module_dbetables(unsigned long addr)
27{
28 return NULL;
29}
30#endif
31
32#define MODULE_PROC_FAMILY "SCORE7"
33#define MODULE_KERNEL_TYPE "32BIT "
34#define MODULE_KERNEL_SMTC ""
35
36#define MODULE_ARCH_VERMAGIC \
37 MODULE_PROC_FAMILY MODULE_KERNEL_TYPE MODULE_KERNEL_SMTC
38
39#endif /* _ASM_SCORE_MODULE_H */
diff --git a/arch/score/include/asm/msgbuf.h b/arch/score/include/asm/msgbuf.h
new file mode 100644
index 000000000000..7506721e29fa
--- /dev/null
+++ b/arch/score/include/asm/msgbuf.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_MSGBUF_H
2#define _ASM_SCORE_MSGBUF_H
3
4#include <asm-generic/msgbuf.h>
5
6#endif /* _ASM_SCORE_MSGBUF_H */
diff --git a/arch/score/include/asm/mutex.h b/arch/score/include/asm/mutex.h
new file mode 100644
index 000000000000..10d48fe4db97
--- /dev/null
+++ b/arch/score/include/asm/mutex.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_MUTEX_H
2#define _ASM_SCORE_MUTEX_H
3
4#include <asm-generic/mutex-dec.h>
5
6#endif /* _ASM_SCORE_MUTEX_H */
diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h
new file mode 100644
index 000000000000..ee5821042fcc
--- /dev/null
+++ b/arch/score/include/asm/page.h
@@ -0,0 +1,92 @@
1#ifndef _ASM_SCORE_PAGE_H
2#define _ASM_SCORE_PAGE_H
3
4#include <linux/pfn.h>
5
6/* PAGE_SHIFT determines the page size */
7#define PAGE_SHIFT (12)
8#define PAGE_SIZE (1UL << PAGE_SHIFT)
9#define PAGE_MASK (~(PAGE_SIZE-1))
10
11#ifdef __KERNEL__
12
13#ifndef __ASSEMBLY__
14
15#define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
16#define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
17
18/* align addr on a size boundary - adjust address up/down if needed */
19#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((size)-1)))
20#define _ALIGN_DOWN(addr, size) ((addr)&(~((size)-1)))
21
22/* align addr on a size boundary - adjust address up if needed */
23#define _ALIGN(addr, size) _ALIGN_UP(addr, size)
24
25/*
26 * PAGE_OFFSET -- the first address of the first page of memory. When not
27 * using MMU this corresponds to the first free page in physical memory (aligned
28 * on a page boundary).
29 */
30#define PAGE_OFFSET (0xA0000000UL)
31
32#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
33#define copy_page(to, from) memcpy((to), (from), PAGE_SIZE)
34
35#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
36#define copy_user_page(vto, vfrom, vaddr, topg) \
37 memcpy((vto), (vfrom), PAGE_SIZE)
38
39/*
40 * These are used to make use of C type-checking..
41 */
42
43typedef struct { unsigned long pte; } pte_t; /* page table entry */
44typedef struct { unsigned long pgd; } pgd_t; /* PGD table entry */
45typedef struct { unsigned long pgprot; } pgprot_t;
46typedef struct page *pgtable_t;
47
48#define pte_val(x) ((x).pte)
49#define pgd_val(x) ((x).pgd)
50#define pgprot_val(x) ((x).pgprot)
51
52#define __pte(x) ((pte_t) { (x) })
53#define __pgd(x) ((pgd_t) { (x) })
54#define __pgprot(x) ((pgprot_t) { (x) })
55
56extern unsigned long max_low_pfn;
57extern unsigned long min_low_pfn;
58extern unsigned long max_pfn;
59
60#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
61#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
62
63#define phys_to_pfn(phys) (PFN_DOWN(phys))
64#define pfn_to_phys(pfn) (PFN_PHYS(pfn))
65
66#define virt_to_pfn(vaddr) (phys_to_pfn((__pa(vaddr))))
67#define pfn_to_virt(pfn) __va(pfn_to_phys((pfn)))
68
69#define virt_to_page(vaddr) (pfn_to_page(virt_to_pfn(vaddr)))
70#define page_to_virt(page) (pfn_to_virt(page_to_pfn(page)))
71
72#define page_to_phys(page) (pfn_to_phys(page_to_pfn(page)))
73#define page_to_bus(page) (page_to_phys(page))
74#define phys_to_page(paddr) (pfn_to_page(phys_to_pfn(paddr)))
75
76#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_mapnr)
77
78#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
79
80#endif /* __ASSEMBLY__ */
81
82#define virt_addr_valid(vaddr) (pfn_valid(virt_to_pfn(vaddr)))
83
84#endif /* __KERNEL__ */
85
86#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
87 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
88
89#include <asm-generic/memory_model.h>
90#include <asm-generic/getorder.h>
91
92#endif /* _ASM_SCORE_PAGE_H */
diff --git a/arch/score/include/asm/param.h b/arch/score/include/asm/param.h
new file mode 100644
index 000000000000..916b8690b6aa
--- /dev/null
+++ b/arch/score/include/asm/param.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_PARAM_H
2#define _ASM_SCORE_PARAM_H
3
4#include <asm-generic/param.h>
5
6#endif /* _ASM_SCORE_PARAM_H */
diff --git a/arch/score/include/asm/pci.h b/arch/score/include/asm/pci.h
new file mode 100644
index 000000000000..3f3cfd82549c
--- /dev/null
+++ b/arch/score/include/asm/pci.h
@@ -0,0 +1,4 @@
1#ifndef _ASM_SCORE_PCI_H
2#define _ASM_SCORE_PCI_H
3
4#endif /* _ASM_SCORE_PCI_H */
diff --git a/arch/score/include/asm/percpu.h b/arch/score/include/asm/percpu.h
new file mode 100644
index 000000000000..e7bd4e05b475
--- /dev/null
+++ b/arch/score/include/asm/percpu.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_PERCPU_H
2#define _ASM_SCORE_PERCPU_H
3
4#include <asm-generic/percpu.h>
5
6#endif /* _ASM_SCORE_PERCPU_H */
diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
new file mode 100644
index 000000000000..059a61b7071b
--- /dev/null
+++ b/arch/score/include/asm/pgalloc.h
@@ -0,0 +1,83 @@
1#ifndef _ASM_SCORE_PGALLOC_H
2#define _ASM_SCORE_PGALLOC_H
3
4#include <linux/mm.h>
5
6static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
7 pte_t *pte)
8{
9 set_pmd(pmd, __pmd((unsigned long)pte));
10}
11
12static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
13 pgtable_t pte)
14{
15 set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
16}
17
18#define pmd_pgtable(pmd) pmd_page(pmd)
19
20static inline pgd_t *pgd_alloc(struct mm_struct *mm)
21{
22 pgd_t *ret, *init;
23
24 ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER);
25 if (ret) {
26 init = pgd_offset(&init_mm, 0UL);
27 pgd_init((unsigned long)ret);
28 memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
29 (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
30 }
31
32 return ret;
33}
34
35static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
36{
37 free_pages((unsigned long)pgd, PGD_ORDER);
38}
39
40static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
41 unsigned long address)
42{
43 pte_t *pte;
44
45 pte = (pte_t *) __get_free_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO,
46 PTE_ORDER);
47
48 return pte;
49}
50
51static inline struct page *pte_alloc_one(struct mm_struct *mm,
52 unsigned long address)
53{
54 struct page *pte;
55
56 pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
57 if (pte) {
58 clear_highpage(pte);
59 pgtable_page_ctor(pte);
60 }
61 return pte;
62}
63
64static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
65{
66 free_pages((unsigned long)pte, PTE_ORDER);
67}
68
69static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
70{
71 pgtable_page_dtor(pte);
72 __free_pages(pte, PTE_ORDER);
73}
74
75#define __pte_free_tlb(tlb, pte, buf) \
76do { \
77 pgtable_page_dtor(pte); \
78 tlb_remove_page((tlb), pte); \
79} while (0)
80
81#define check_pgt_cache() do {} while (0)
82
83#endif /* _ASM_SCORE_PGALLOC_H */
diff --git a/arch/score/include/asm/pgtable-bits.h b/arch/score/include/asm/pgtable-bits.h
new file mode 100644
index 000000000000..7d65a96a82e5
--- /dev/null
+++ b/arch/score/include/asm/pgtable-bits.h
@@ -0,0 +1,25 @@
1#ifndef _ASM_SCORE_PGTABLE_BITS_H
2#define _ASM_SCORE_PGTABLE_BITS_H
3
4#define _PAGE_ACCESSED (1<<5) /* implemented in software */
5#define _PAGE_READ (1<<6) /* implemented in software */
6#define _PAGE_WRITE (1<<7) /* implemented in software */
7#define _PAGE_PRESENT (1<<9) /* implemented in software */
8#define _PAGE_MODIFIED (1<<10) /* implemented in software */
9#define _PAGE_FILE (1<<10)
10
11#define _PAGE_GLOBAL (1<<0)
12#define _PAGE_VALID (1<<1)
13#define _PAGE_SILENT_READ (1<<1) /* synonym */
14#define _PAGE_DIRTY (1<<2) /* Write bit */
15#define _PAGE_SILENT_WRITE (1<<2)
16#define _PAGE_CACHE (1<<3) /* cache */
17#define _CACHE_MASK (1<<3)
18#define _PAGE_BUFFERABLE (1<<4) /*Fallow Spec. */
19
20#define __READABLE (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
21#define __WRITEABLE (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
22#define _PAGE_CHG_MASK \
23 (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_CACHE)
24
25#endif /* _ASM_SCORE_PGTABLE_BITS_H */
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h
new file mode 100644
index 000000000000..674934b40170
--- /dev/null
+++ b/arch/score/include/asm/pgtable.h
@@ -0,0 +1,287 @@
1#ifndef _ASM_SCORE_PGTABLE_H
2#define _ASM_SCORE_PGTABLE_H
3
4#include <linux/const.h>
5#include <asm-generic/pgtable-nopmd.h>
6
7#include <asm/fixmap.h>
8#include <asm/setup.h>
9#include <asm/pgtable-bits.h>
10
11extern void load_pgd(unsigned long pg_dir);
12extern pte_t invalid_pte_table[PAGE_SIZE/sizeof(pte_t)];
13
14/* PGDIR_SHIFT determines what a third-level page table entry can map */
15#define PGDIR_SHIFT 22
16#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
17#define PGDIR_MASK (~(PGDIR_SIZE - 1))
18
19/*
20 * Entries per page directory level: we use two-level, so
21 * we don't really have any PUD/PMD directory physically.
22 */
23#define PGD_ORDER 0
24#define PTE_ORDER 0
25
26#define PTRS_PER_PGD 1024
27#define PTRS_PER_PTE 1024
28
29#define USER_PTRS_PER_PGD (0x80000000UL/PGDIR_SIZE)
30#define FIRST_USER_ADDRESS 0
31
32#define VMALLOC_START (0xc0000000UL)
33
34#define PKMAP_BASE (0xfd000000UL)
35
36#define VMALLOC_END (FIXADDR_START - 2*PAGE_SIZE)
37
38#define pte_ERROR(e) \
39 printk(KERN_ERR "%s:%d: bad pte %08lx.\n", \
40 __FILE__, __LINE__, pte_val(e))
41#define pgd_ERROR(e) \
42 printk(KERN_ERR "%s:%d: bad pgd %08lx.\n", \
43 __FILE__, __LINE__, pgd_val(e))
44
45/*
46 * Empty pgd/pmd entries point to the invalid_pte_table.
47 */
48static inline int pmd_none(pmd_t pmd)
49{
50 return pmd_val(pmd) == (unsigned long) invalid_pte_table;
51}
52
53#define pmd_bad(pmd) (pmd_val(pmd) & ~PAGE_MASK)
54
55static inline int pmd_present(pmd_t pmd)
56{
57 return pmd_val(pmd) != (unsigned long) invalid_pte_table;
58}
59
60static inline void pmd_clear(pmd_t *pmdp)
61{
62 pmd_val(*pmdp) = ((unsigned long) invalid_pte_table);
63}
64
65#define pte_page(x) pfn_to_page(pte_pfn(x))
66#define pte_pfn(x) ((unsigned long)((x).pte >> PAGE_SHIFT))
67#define pfn_pte(pfn, prot) \
68 __pte(((unsigned long long)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
69
70#define __pgd_offset(address) pgd_index(address)
71#define __pud_offset(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
72#define __pmd_offset(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
73
74/* to find an entry in a kernel page-table-directory */
75#define pgd_offset_k(address) pgd_offset(&init_mm, address)
76#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
77
78/* to find an entry in a page-table-directory */
79#define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr))
80
81/* Find an entry in the third-level page table.. */
82#define __pte_offset(address) \
83 (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
84#define pte_offset(dir, address) \
85 ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
86#define pte_offset_kernel(dir, address) \
87 ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
88
89#define pte_offset_map(dir, address) \
90 ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
91#define pte_offset_map_nested(dir, address) \
92 ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
93#define pte_unmap(pte) ((void)(pte))
94#define pte_unmap_nested(pte) ((void)(pte))
95
96/*
97 * Bits 9(_PAGE_PRESENT) and 10(_PAGE_FILE)are taken,
98 * split up 30 bits of offset into this range:
99 */
100#define PTE_FILE_MAX_BITS 30
101#define pte_to_pgoff(_pte) \
102 (((_pte).pte & 0x1ff) | (((_pte).pte >> 11) << 9))
103#define pgoff_to_pte(off) \
104 ((pte_t) {((off) & 0x1ff) | (((off) >> 9) << 11) | _PAGE_FILE})
105#define __pte_to_swp_entry(pte) \
106 ((swp_entry_t) { pte_val(pte)})
107#define __swp_entry_to_pte(x) ((pte_t) {(x).val})
108
109#define pmd_phys(pmd) __pa((void *)pmd_val(pmd))
110#define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
111#define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot)
112static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
113
114#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
115#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
116#define pte_clear(mm, addr, xp) \
117 do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
118
119#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
120 remap_pfn_range(vma, vaddr, pfn, size, prot)
121
122/*
123 * The "pgd_xxx()" functions here are trivial for a folded two-level
124 * setup: the pgd is never bad, and a pmd always exists (as it's folded
125 * into the pgd entry)
126 */
127#define pgd_present(pgd) (1)
128#define pgd_none(pgd) (0)
129#define pgd_bad(pgd) (0)
130#define pgd_clear(pgdp) do { } while (0)
131
132#define kern_addr_valid(addr) (1)
133#define pmd_page_vaddr(pmd) pmd_val(pmd)
134
135#define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL))
136#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
137
138#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_CACHE)
139#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \
140 _PAGE_CACHE)
141#define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHE)
142#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_CACHE)
143#define PAGE_KERNEL __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \
144 _PAGE_GLOBAL | _PAGE_CACHE)
145#define PAGE_KERNEL_UNCACHED __pgprot(_PAGE_PRESENT | __READABLE | \
146 __WRITEABLE | _PAGE_GLOBAL & ~_PAGE_CACHE)
147
148#define __P000 PAGE_NONE
149#define __P001 PAGE_READONLY
150#define __P010 PAGE_COPY
151#define __P011 PAGE_COPY
152#define __P100 PAGE_READONLY
153#define __P101 PAGE_READONLY
154#define __P110 PAGE_COPY
155#define __P111 PAGE_COPY
156
157#define __S000 PAGE_NONE
158#define __S001 PAGE_READONLY
159#define __S010 PAGE_SHARED
160#define __S011 PAGE_SHARED
161#define __S100 PAGE_READONLY
162#define __S101 PAGE_READONLY
163#define __S110 PAGE_SHARED
164#define __S111 PAGE_SHARED
165
166#define pgprot_noncached pgprot_noncached
167
168static inline pgprot_t pgprot_noncached(pgprot_t _prot)
169{
170 unsigned long prot = pgprot_val(_prot);
171
172 prot = (prot & ~_CACHE_MASK);
173
174 return __pgprot(prot);
175}
176
177#define __swp_type(x) ((x).val & 0x1f)
178#define __swp_offset(x) ((x).val >> 11)
179#define __swp_entry(type, offset) ((swp_entry_t){(type) | ((offset) << 11)})
180
181extern unsigned long empty_zero_page;
182extern unsigned long zero_page_mask;
183
184#define ZERO_PAGE(vaddr) \
185 (virt_to_page((void *)(empty_zero_page + \
186 (((unsigned long)(vaddr)) & zero_page_mask))))
187
188#define pgtable_cache_init() do {} while (0)
189
190#define arch_enter_lazy_cpu_mode() do {} while (0)
191
192static inline int pte_write(pte_t pte)
193{
194 return pte_val(pte) & _PAGE_WRITE;
195}
196
197static inline int pte_dirty(pte_t pte)
198{
199 return pte_val(pte) & _PAGE_MODIFIED;
200}
201
202static inline int pte_young(pte_t pte)
203{
204 return pte_val(pte) & _PAGE_ACCESSED;
205}
206
207static inline int pte_file(pte_t pte)
208{
209 return pte_val(pte) & _PAGE_FILE;
210}
211
212#define pte_special(pte) (0)
213
214static inline pte_t pte_wrprotect(pte_t pte)
215{
216 pte_val(pte) &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
217 return pte;
218}
219
220static inline pte_t pte_mkclean(pte_t pte)
221{
222 pte_val(pte) &= ~(_PAGE_MODIFIED|_PAGE_SILENT_WRITE);
223 return pte;
224}
225
226static inline pte_t pte_mkold(pte_t pte)
227{
228 pte_val(pte) &= ~(_PAGE_ACCESSED|_PAGE_SILENT_READ);
229 return pte;
230}
231
232static inline pte_t pte_mkwrite(pte_t pte)
233{
234 pte_val(pte) |= _PAGE_WRITE;
235 if (pte_val(pte) & _PAGE_MODIFIED)
236 pte_val(pte) |= _PAGE_SILENT_WRITE;
237 return pte;
238}
239
240static inline pte_t pte_mkdirty(pte_t pte)
241{
242 pte_val(pte) |= _PAGE_MODIFIED;
243 if (pte_val(pte) & _PAGE_WRITE)
244 pte_val(pte) |= _PAGE_SILENT_WRITE;
245 return pte;
246}
247
248static inline pte_t pte_mkyoung(pte_t pte)
249{
250 pte_val(pte) |= _PAGE_ACCESSED;
251 if (pte_val(pte) & _PAGE_READ)
252 pte_val(pte) |= _PAGE_SILENT_READ;
253 return pte;
254}
255
256#define set_pmd(pmdptr, pmdval) \
257 do { *(pmdptr) = (pmdval); } while (0)
258#define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT)
259
260extern unsigned long pgd_current;
261extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
262extern void paging_init(void);
263
264static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
265{
266 return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot));
267}
268
269extern void __update_tlb(struct vm_area_struct *vma,
270 unsigned long address, pte_t pte);
271extern void __update_cache(struct vm_area_struct *vma,
272 unsigned long address, pte_t pte);
273
274static inline void update_mmu_cache(struct vm_area_struct *vma,
275 unsigned long address, pte_t pte)
276{
277 __update_tlb(vma, address, pte);
278 __update_cache(vma, address, pte);
279}
280
281#ifndef __ASSEMBLY__
282#include <asm-generic/pgtable.h>
283
284void setup_memory(void);
285#endif /* __ASSEMBLY__ */
286
287#endif /* _ASM_SCORE_PGTABLE_H */
diff --git a/arch/score/include/asm/poll.h b/arch/score/include/asm/poll.h
new file mode 100644
index 000000000000..18532db02861
--- /dev/null
+++ b/arch/score/include/asm/poll.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_POLL_H
2#define _ASM_SCORE_POLL_H
3
4#include <asm-generic/poll.h>
5
6#endif /* _ASM_SCORE_POLL_H */
diff --git a/arch/score/include/asm/posix_types.h b/arch/score/include/asm/posix_types.h
new file mode 100644
index 000000000000..b88acf80048a
--- /dev/null
+++ b/arch/score/include/asm/posix_types.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_POSIX_TYPES_H
2#define _ASM_SCORE_POSIX_TYPES_H
3
4#include <asm-generic/posix_types.h>
5
6#endif /* _ASM_SCORE_POSIX_TYPES_H */
diff --git a/arch/score/include/asm/processor.h b/arch/score/include/asm/processor.h
new file mode 100644
index 000000000000..7e22f216d771
--- /dev/null
+++ b/arch/score/include/asm/processor.h
@@ -0,0 +1,106 @@
1#ifndef _ASM_SCORE_PROCESSOR_H
2#define _ASM_SCORE_PROCESSOR_H
3
4#include <linux/cpumask.h>
5#include <linux/threads.h>
6
7#include <asm/segment.h>
8
9struct task_struct;
10
11/*
12 * System setup and hardware flags..
13 */
14extern void (*cpu_wait)(void);
15
16extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
17extern unsigned long thread_saved_pc(struct task_struct *tsk);
18extern void start_thread(struct pt_regs *regs,
19 unsigned long pc, unsigned long sp);
20extern unsigned long get_wchan(struct task_struct *p);
21
22/*
23 * Return current * instruction pointer ("program counter").
24 */
25#define current_text_addr() ({ __label__ _l; _l: &&_l; })
26
27#define cpu_relax() barrier()
28#define release_thread(thread) do {} while (0)
29#define prepare_to_copy(tsk) do {} while (0)
30
31/*
32 * User space process size: 2GB. This is hardcoded into a few places,
33 * so don't change it unless you know what you are doing.
34 */
35#define TASK_SIZE 0x7fff8000UL
36
37/*
38 * This decides where the kernel will search for a free chunk of vm
39 * space during mmap's.
40 */
41#define TASK_UNMAPPED_BASE ((TASK_SIZE / 3) & ~(PAGE_SIZE))
42
43#ifdef __KERNEL__
44#define STACK_TOP TASK_SIZE
45#define STACK_TOP_MAX TASK_SIZE
46#endif
47
48/*
49 * If you change thread_struct remember to change the #defines below too!
50 */
51struct thread_struct {
52 unsigned long reg0, reg2, reg3;
53 unsigned long reg12, reg13, reg14, reg15, reg16;
54 unsigned long reg17, reg18, reg19, reg20, reg21;
55
56 unsigned long cp0_psr;
57 unsigned long cp0_ema; /* Last user fault */
58 unsigned long cp0_badvaddr; /* Last user fault */
59 unsigned long cp0_baduaddr; /* Last kernel fault accessing USEG */
60 unsigned long error_code;
61 unsigned long trap_no;
62
63 unsigned long mflags;
64 unsigned long reg29;
65
66 unsigned long single_step;
67 unsigned long ss_nextcnt;
68
69 unsigned long insn1_type;
70 unsigned long addr1;
71 unsigned long insn1;
72
73 unsigned long insn2_type;
74 unsigned long addr2;
75 unsigned long insn2;
76
77 mm_segment_t current_ds;
78};
79
80#define INIT_THREAD { \
81 .reg0 = 0, \
82 .reg2 = 0, \
83 .reg3 = 0, \
84 .reg12 = 0, \
85 .reg13 = 0, \
86 .reg14 = 0, \
87 .reg15 = 0, \
88 .reg16 = 0, \
89 .reg17 = 0, \
90 .reg18 = 0, \
91 .reg19 = 0, \
92 .reg20 = 0, \
93 .reg21 = 0, \
94 .cp0_psr = 0, \
95 .error_code = 0, \
96 .trap_no = 0, \
97}
98
99#define kstk_tos(tsk) \
100 ((unsigned long)task_stack_page(tsk) + THREAD_SIZE - 32)
101#define task_pt_regs(tsk) ((struct pt_regs *)kstk_tos(tsk) - 1)
102
103#define KSTK_EIP(tsk) (task_pt_regs(tsk)->cp0_epc)
104#define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29])
105
106#endif /* _ASM_SCORE_PROCESSOR_H */
diff --git a/arch/score/include/asm/ptrace.h b/arch/score/include/asm/ptrace.h
new file mode 100644
index 000000000000..d40e691f23e2
--- /dev/null
+++ b/arch/score/include/asm/ptrace.h
@@ -0,0 +1,97 @@
1#ifndef _ASM_SCORE_PTRACE_H
2#define _ASM_SCORE_PTRACE_H
3
4#define PTRACE_GETREGS 12
5#define PTRACE_SETREGS 13
6
7#define PC 32
8#define CONDITION 33
9#define ECR 34
10#define EMA 35
11#define CEH 36
12#define CEL 37
13#define COUNTER 38
14#define LDCR 39
15#define STCR 40
16#define PSR 41
17
18#define SINGLESTEP16_INSN 0x7006
19#define SINGLESTEP32_INSN 0x840C8000
20#define BREAKPOINT16_INSN 0x7002 /* work on SPG300 */
21#define BREAKPOINT32_INSN 0x84048000 /* work on SPG300 */
22
23/* Define instruction mask */
24#define INSN32_MASK 0x80008000
25
26#define J32 0x88008000 /* 1_00010_0000000000_1_000000000000000 */
27#define J32M 0xFC008000 /* 1_11111_0000000000_1_000000000000000 */
28
29#define B32 0x90008000 /* 1_00100_0000000000_1_000000000000000 */
30#define B32M 0xFC008000
31#define BL32 0x90008001 /* 1_00100_0000000000_1_000000000000001 */
32#define BL32M B32
33#define BR32 0x80008008 /* 1_00000_0000000000_1_00000000_000100_0 */
34#define BR32M 0xFFE0807E
35#define BRL32 0x80008009 /* 1_00000_0000000000_1_00000000_000100_1 */
36#define BRL32M BR32M
37
38#define B32_SET (J32 | B32 | BL32 | BR32 | BRL32)
39
40#define J16 0x3000 /* 0_011_....... */
41#define J16M 0xF000
42#define B16 0x4000 /* 0_100_....... */
43#define B16M 0xF000
44#define BR16 0x0004 /* 0_000.......0100 */
45#define BR16M 0xF00F
46#define B16_SET (J16 | B16 | BR16)
47
48
49/*
50 * This struct defines the way the registers are stored on the stack during a
51 * system call/exception. As usual the registers k0/k1 aren't being saved.
52 */
53struct pt_regs {
54 unsigned long pad0[6]; /* stack arguments */
55 unsigned long orig_r4;
56 unsigned long orig_r7;
57 long is_syscall;
58
59 unsigned long regs[32];
60
61 unsigned long cel;
62 unsigned long ceh;
63
64 unsigned long sr0; /* cnt */
65 unsigned long sr1; /* lcr */
66 unsigned long sr2; /* scr */
67
68 unsigned long cp0_epc;
69 unsigned long cp0_ema;
70 unsigned long cp0_psr;
71 unsigned long cp0_ecr;
72 unsigned long cp0_condition;
73};
74
75#ifdef __KERNEL__
76
77struct task_struct;
78
79/*
80 * Does the process account for user or for system time?
81 */
82#define user_mode(regs) ((regs->cp0_psr & 8) == 8)
83
84#define instruction_pointer(regs) ((unsigned long)(regs)->cp0_epc)
85#define profile_pc(regs) instruction_pointer(regs)
86
87extern void do_syscall_trace(struct pt_regs *regs, int entryexit);
88extern int read_tsk_long(struct task_struct *, unsigned long, unsigned long *);
89extern int read_tsk_short(struct task_struct *, unsigned long,
90 unsigned short *);
91
92#define arch_has_single_step() (1)
93extern void user_enable_single_step(struct task_struct *);
94extern void user_disable_single_step(struct task_struct *);
95#endif /* __KERNEL__ */
96
97#endif /* _ASM_SCORE_PTRACE_H */
diff --git a/arch/score/include/asm/resource.h b/arch/score/include/asm/resource.h
new file mode 100644
index 000000000000..9ce22bc7b475
--- /dev/null
+++ b/arch/score/include/asm/resource.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_RESOURCE_H
2#define _ASM_SCORE_RESOURCE_H
3
4#include <asm-generic/resource.h>
5
6#endif /* _ASM_SCORE_RESOURCE_H */
diff --git a/arch/score/include/asm/scatterlist.h b/arch/score/include/asm/scatterlist.h
new file mode 100644
index 000000000000..9f533b8362c7
--- /dev/null
+++ b/arch/score/include/asm/scatterlist.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SCATTERLIST_H
2#define _ASM_SCORE_SCATTERLIST_H
3
4#include <asm-generic/scatterlist.h>
5
6#endif /* _ASM_SCORE_SCATTERLIST_H */
diff --git a/arch/score/include/asm/scoreregs.h b/arch/score/include/asm/scoreregs.h
new file mode 100644
index 000000000000..d0ad29204518
--- /dev/null
+++ b/arch/score/include/asm/scoreregs.h
@@ -0,0 +1,51 @@
1#ifndef _ASM_SCORE_SCOREREGS_H
2#define _ASM_SCORE_SCOREREGS_H
3
4#include <linux/linkage.h>
5
6/* TIMER register */
7#define TIME0BASE 0x96080000
8#define P_TIMER0_CTRL (TIME0BASE + 0x00)
9#define P_TIMER0_CPP_CTRL (TIME0BASE + 0x04)
10#define P_TIMER0_PRELOAD (TIME0BASE + 0x08)
11#define P_TIMER0_CPP_REG (TIME0BASE + 0x0C)
12#define P_TIMER0_UPCNT (TIME0BASE + 0x10)
13
14/* Timer Controller Register */
15/* bit 0 Timer enable */
16#define TMR_DISABLE 0x0000
17#define TMR_ENABLE 0x0001
18
19/* bit 1 Interrupt enable */
20#define TMR_IE_DISABLE 0x0000
21#define TMR_IE_ENABLE 0x0002
22
23/* bit 2 Output enable */
24#define TMR_OE_DISABLE 0x0004
25#define TMR_OE_ENABLE 0x0000
26
27/* bit4 Up/Down counting selection */
28#define TMR_UD_DOWN 0x0000
29#define TMR_UD_UP 0x0010
30
31/* bit5 Up/Down counting control selection */
32#define TMR_UDS_UD 0x0000
33#define TMR_UDS_EXTUD 0x0020
34
35/* bit6 Time output mode */
36#define TMR_OM_TOGGLE 0x0000
37#define TMR_OM_PILSE 0x0040
38
39/* bit 8..9 External input active edge selection */
40#define TMR_ES_PE 0x0000
41#define TMR_ES_NE 0x0100
42#define TMR_ES_BOTH 0x0200
43
44/* bit 10..11 Operating mode */
45#define TMR_M_FREE 0x0000 /* free running timer mode */
46#define TMR_M_PERIODIC 0x0400 /* periodic timer mode */
47#define TMR_M_FC 0x0800 /* free running counter mode */
48#define TMR_M_PC 0x0c00 /* periodic counter mode */
49
50#define SYSTEM_CLOCK (27*1000000/4) /* 27 MHz */
51#endif /* _ASM_SCORE_SCOREREGS_H */
diff --git a/arch/score/include/asm/sections.h b/arch/score/include/asm/sections.h
new file mode 100644
index 000000000000..9441d23af005
--- /dev/null
+++ b/arch/score/include/asm/sections.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SECTIONS_H
2#define _ASM_SCORE_SECTIONS_H
3
4#include <asm-generic/sections.h>
5
6#endif /* _ASM_SCORE_SECTIONS_H */
diff --git a/arch/score/include/asm/segment.h b/arch/score/include/asm/segment.h
new file mode 100644
index 000000000000..e16cf6afb495
--- /dev/null
+++ b/arch/score/include/asm/segment.h
@@ -0,0 +1,21 @@
1#ifndef _ASM_SCORE_SEGMENT_H
2#define _ASM_SCORE_SEGMENT_H
3
4#ifndef __ASSEMBLY__
5
6typedef struct {
7 unsigned long seg;
8} mm_segment_t;
9
10#define KERNEL_DS ((mm_segment_t){0})
11#define USER_DS KERNEL_DS
12
13# define get_ds() (KERNEL_DS)
14# define get_fs() (current_thread_info()->addr_limit)
15# define set_fs(x) \
16 do { current_thread_info()->addr_limit = (x); } while (0)
17
18# define segment_eq(a, b) ((a).seg == (b).seg)
19
20# endif /* __ASSEMBLY__ */
21#endif /* _ASM_SCORE_SEGMENT_H */
diff --git a/arch/score/include/asm/sembuf.h b/arch/score/include/asm/sembuf.h
new file mode 100644
index 000000000000..dae5e835ce9e
--- /dev/null
+++ b/arch/score/include/asm/sembuf.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SEMBUF_H
2#define _ASM_SCORE_SEMBUF_H
3
4#include <asm-generic/sembuf.h>
5
6#endif /* _ASM_SCORE_SEMBUF_H */
diff --git a/arch/score/include/asm/setup.h b/arch/score/include/asm/setup.h
new file mode 100644
index 000000000000..3cb944dc68dc
--- /dev/null
+++ b/arch/score/include/asm/setup.h
@@ -0,0 +1,41 @@
1#ifndef _ASM_SCORE_SETUP_H
2#define _ASM_SCORE_SETUP_H
3
4#define COMMAND_LINE_SIZE 256
5#define MEMORY_START 0
6#define MEMORY_SIZE 0x2000000
7
8#ifdef __KERNEL__
9
10extern void pagetable_init(void);
11extern void pgd_init(unsigned long page);
12
13extern void setup_early_printk(void);
14extern void cpu_cache_init(void);
15extern void tlb_init(void);
16
17extern void handle_nmi(void);
18extern void handle_adelinsn(void);
19extern void handle_adedata(void);
20extern void handle_ibe(void);
21extern void handle_pel(void);
22extern void handle_sys(void);
23extern void handle_ccu(void);
24extern void handle_ri(void);
25extern void handle_tr(void);
26extern void handle_ades(void);
27extern void handle_cee(void);
28extern void handle_cpe(void);
29extern void handle_dve(void);
30extern void handle_dbe(void);
31extern void handle_reserved(void);
32extern void handle_tlb_refill(void);
33extern void handle_tlb_invaild(void);
34extern void handle_mod(void);
35extern void debug_exception_vector(void);
36extern void general_exception_vector(void);
37extern void interrupt_exception_vector(void);
38
39#endif /* __KERNEL__ */
40
41#endif /* _ASM_SCORE_SETUP_H */
diff --git a/arch/score/include/asm/shmbuf.h b/arch/score/include/asm/shmbuf.h
new file mode 100644
index 000000000000..c85b2429ba21
--- /dev/null
+++ b/arch/score/include/asm/shmbuf.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SHMBUF_H
2#define _ASM_SCORE_SHMBUF_H
3
4#include <asm-generic/shmbuf.h>
5
6#endif /* _ASM_SCORE_SHMBUF_H */
diff --git a/arch/score/include/asm/shmparam.h b/arch/score/include/asm/shmparam.h
new file mode 100644
index 000000000000..1d60813141b6
--- /dev/null
+++ b/arch/score/include/asm/shmparam.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SHMPARAM_H
2#define _ASM_SCORE_SHMPARAM_H
3
4#include <asm-generic/shmparam.h>
5
6#endif /* _ASM_SCORE_SHMPARAM_H */
diff --git a/arch/score/include/asm/sigcontext.h b/arch/score/include/asm/sigcontext.h
new file mode 100644
index 000000000000..5ffda39ddb90
--- /dev/null
+++ b/arch/score/include/asm/sigcontext.h
@@ -0,0 +1,22 @@
1#ifndef _ASM_SCORE_SIGCONTEXT_H
2#define _ASM_SCORE_SIGCONTEXT_H
3
4/*
5 * Keep this struct definition in sync with the sigcontext fragment
6 * in arch/score/tools/offset.c
7 */
8struct sigcontext {
9 unsigned int sc_regmask;
10 unsigned int sc_psr;
11 unsigned int sc_condition;
12 unsigned long sc_pc;
13 unsigned long sc_regs[32];
14 unsigned int sc_ssflags;
15 unsigned int sc_mdceh;
16 unsigned int sc_mdcel;
17 unsigned int sc_ecr;
18 unsigned long sc_ema;
19 unsigned long sc_sigset[4];
20};
21
22#endif /* _ASM_SCORE_SIGCONTEXT_H */
diff --git a/arch/score/include/asm/siginfo.h b/arch/score/include/asm/siginfo.h
new file mode 100644
index 000000000000..87ca35607a28
--- /dev/null
+++ b/arch/score/include/asm/siginfo.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SIGINFO_H
2#define _ASM_SCORE_SIGINFO_H
3
4#include <asm-generic/siginfo.h>
5
6#endif /* _ASM_SCORE_SIGINFO_H */
diff --git a/arch/score/include/asm/signal.h b/arch/score/include/asm/signal.h
new file mode 100644
index 000000000000..2605bc06b64f
--- /dev/null
+++ b/arch/score/include/asm/signal.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SIGNAL_H
2#define _ASM_SCORE_SIGNAL_H
3
4#include <asm-generic/signal.h>
5
6#endif /* _ASM_SCORE_SIGNAL_H */
diff --git a/arch/score/include/asm/socket.h b/arch/score/include/asm/socket.h
new file mode 100644
index 000000000000..612a70e385ba
--- /dev/null
+++ b/arch/score/include/asm/socket.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SOCKET_H
2#define _ASM_SCORE_SOCKET_H
3
4#include <asm-generic/socket.h>
5
6#endif /* _ASM_SCORE_SOCKET_H */
diff --git a/arch/score/include/asm/sockios.h b/arch/score/include/asm/sockios.h
new file mode 100644
index 000000000000..ba8256480189
--- /dev/null
+++ b/arch/score/include/asm/sockios.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SOCKIOS_H
2#define _ASM_SCORE_SOCKIOS_H
3
4#include <asm-generic/sockios.h>
5
6#endif /* _ASM_SCORE_SOCKIOS_H */
diff --git a/arch/score/include/asm/stat.h b/arch/score/include/asm/stat.h
new file mode 100644
index 000000000000..5037055500a2
--- /dev/null
+++ b/arch/score/include/asm/stat.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_STAT_H
2#define _ASM_SCORE_STAT_H
3
4#include <asm-generic/stat.h>
5
6#endif /* _ASM_SCORE_STAT_H */
diff --git a/arch/score/include/asm/statfs.h b/arch/score/include/asm/statfs.h
new file mode 100644
index 000000000000..36e41004e996
--- /dev/null
+++ b/arch/score/include/asm/statfs.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_STATFS_H
2#define _ASM_SCORE_STATFS_H
3
4#include <asm-generic/statfs.h>
5
6#endif /* _ASM_SCORE_STATFS_H */
diff --git a/arch/score/include/asm/string.h b/arch/score/include/asm/string.h
new file mode 100644
index 000000000000..8a6bf5063aa5
--- /dev/null
+++ b/arch/score/include/asm/string.h
@@ -0,0 +1,8 @@
1#ifndef _ASM_SCORE_STRING_H
2#define _ASM_SCORE_STRING_H
3
4extern void *memset(void *__s, int __c, size_t __count);
5extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
6extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
7
8#endif /* _ASM_SCORE_STRING_H */
diff --git a/arch/score/include/asm/swab.h b/arch/score/include/asm/swab.h
new file mode 100644
index 000000000000..fadc3cc6d8a2
--- /dev/null
+++ b/arch/score/include/asm/swab.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_SWAB_H
2#define _ASM_SCORE_SWAB_H
3
4#include <asm-generic/swab.h>
5
6#endif /* _ASM_SCORE_SWAB_H */
diff --git a/arch/score/include/asm/syscalls.h b/arch/score/include/asm/syscalls.h
new file mode 100644
index 000000000000..1dd5e0d6b0c3
--- /dev/null
+++ b/arch/score/include/asm/syscalls.h
@@ -0,0 +1,11 @@
1#ifndef _ASM_SCORE_SYSCALLS_H
2#define _ASM_SCORE_SYSCALLS_H
3
4asmlinkage long score_clone(struct pt_regs *regs);
5asmlinkage long score_execve(struct pt_regs *regs);
6asmlinkage long score_sigaltstack(struct pt_regs *regs);
7asmlinkage long score_rt_sigreturn(struct pt_regs *regs);
8
9#include <asm-generic/syscalls.h>
10
11#endif /* _ASM_SCORE_SYSCALLS_H */
diff --git a/arch/score/include/asm/system.h b/arch/score/include/asm/system.h
new file mode 100644
index 000000000000..589d5c7e171c
--- /dev/null
+++ b/arch/score/include/asm/system.h
@@ -0,0 +1,90 @@
1#ifndef _ASM_SCORE_SYSTEM_H
2#define _ASM_SCORE_SYSTEM_H
3
4#include <linux/types.h>
5#include <linux/irqflags.h>
6
7struct pt_regs;
8struct task_struct;
9
10extern void *resume(void *last, void *next, void *next_ti);
11
12#define switch_to(prev, next, last) \
13do { \
14 (last) = resume(prev, next, task_thread_info(next)); \
15} while (0)
16
17#define finish_arch_switch(prev) do {} while (0)
18
19typedef void (*vi_handler_t)(void);
20extern unsigned long arch_align_stack(unsigned long sp);
21
22#define mb() barrier()
23#define rmb() barrier()
24#define wmb() barrier()
25#define smp_mb() barrier()
26#define smp_rmb() barrier()
27#define smp_wmb() barrier()
28
29#define read_barrier_depends() do {} while (0)
30#define smp_read_barrier_depends() do {} while (0)
31
32#define set_mb(var, value) do {var = value; wmb(); } while (0)
33
34#define __HAVE_ARCH_CMPXCHG 1
35
36#include <asm-generic/cmpxchg-local.h>
37
38#ifndef __ASSEMBLY__
39
40struct __xchg_dummy { unsigned long a[100]; };
41#define __xg(x) ((struct __xchg_dummy *)(x))
42
43static inline
44unsigned long __xchg(volatile unsigned long *m, unsigned long val)
45{
46 unsigned long retval;
47 unsigned long flags;
48
49 local_irq_save(flags);
50 retval = *m;
51 *m = val;
52 local_irq_restore(flags);
53 return retval;
54}
55
56#define xchg(ptr, v) \
57 ((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \
58 (unsigned long)(v)))
59
60static inline unsigned long __cmpxchg(volatile unsigned long *m,
61 unsigned long old, unsigned long new)
62{
63 unsigned long retval;
64 unsigned long flags;
65
66 local_irq_save(flags);
67 retval = *m;
68 if (retval == old)
69 *m = new;
70 local_irq_restore(flags);
71 return retval;
72}
73
74#define cmpxchg(ptr, o, n) \
75 ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
76 (unsigned long)(o), \
77 (unsigned long)(n)))
78
79extern void __die(const char *, struct pt_regs *, const char *,
80 const char *, unsigned long) __attribute__((noreturn));
81extern void __die_if_kernel(const char *, struct pt_regs *, const char *,
82 const char *, unsigned long);
83
84#define die(msg, regs) \
85 __die(msg, regs, __FILE__ ":", __func__, __LINE__)
86#define die_if_kernel(msg, regs) \
87 __die_if_kernel(msg, regs, __FILE__ ":", __func__, __LINE__)
88
89#endif /* !__ASSEMBLY__ */
90#endif /* _ASM_SCORE_SYSTEM_H */
diff --git a/arch/score/include/asm/termbits.h b/arch/score/include/asm/termbits.h
new file mode 100644
index 000000000000..9a95c1412437
--- /dev/null
+++ b/arch/score/include/asm/termbits.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_TERMBITS_H
2#define _ASM_SCORE_TERMBITS_H
3
4#include <asm-generic/termbits.h>
5
6#endif /* _ASM_SCORE_TERMBITS_H */
diff --git a/arch/score/include/asm/termios.h b/arch/score/include/asm/termios.h
new file mode 100644
index 000000000000..40984e811ad6
--- /dev/null
+++ b/arch/score/include/asm/termios.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_TERMIOS_H
2#define _ASM_SCORE_TERMIOS_H
3
4#include <asm-generic/termios.h>
5
6#endif /* _ASM_SCORE_TERMIOS_H */
diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h
new file mode 100644
index 000000000000..3a1122885528
--- /dev/null
+++ b/arch/score/include/asm/thread_info.h
@@ -0,0 +1,105 @@
1#ifndef _ASM_SCORE_THREAD_INFO_H
2#define _ASM_SCORE_THREAD_INFO_H
3
4#ifdef __KERNEL__
5
6#define KU_MASK 0x08
7#define KU_USER 0x08
8#define KU_KERN 0x00
9
10#ifndef __ASSEMBLY__
11
12#include <asm/processor.h>
13
14/*
15 * low level task data that entry.S needs immediate access to
16 * - this struct should fit entirely inside of one cache line
17 * - this struct shares the supervisor stack pages
18 * - if the contents of this structure are changed, the assembly constants
19 * must also be changed
20 */
21struct thread_info {
22 struct task_struct *task; /* main task structure */
23 struct exec_domain *exec_domain; /* execution domain */
24 unsigned long flags; /* low level flags */
25 unsigned long tp_value; /* thread pointer */
26 __u32 cpu; /* current CPU */
27
28 /* 0 => preemptable, < 0 => BUG */
29 int preempt_count;
30
31 /*
32 * thread address space:
33 * 0-0xBFFFFFFF for user-thead
34 * 0-0xFFFFFFFF for kernel-thread
35 */
36 mm_segment_t addr_limit;
37 struct restart_block restart_block;
38 struct pt_regs *regs;
39};
40
41/*
42 * macros/functions for gaining access to the thread information structure
43 *
44 * preempt_count needs to be 1 initially, until the scheduler is functional.
45 */
46#define INIT_THREAD_INFO(tsk) \
47{ \
48 .task = &tsk, \
49 .exec_domain = &default_exec_domain, \
50 .cpu = 0, \
51 .preempt_count = 1, \
52 .addr_limit = KERNEL_DS, \
53 .restart_block = { \
54 .fn = do_no_restart_syscall, \
55 }, \
56}
57
58#define init_thread_info (init_thread_union.thread_info)
59#define init_stack (init_thread_union.stack)
60
61/* How to get the thread information struct from C. */
62register struct thread_info *__current_thread_info __asm__("r28");
63#define current_thread_info() __current_thread_info
64
65/* thread information allocation */
66#define THREAD_SIZE_ORDER (1)
67#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
68#define THREAD_MASK (THREAD_SIZE - 1UL)
69#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
70
71#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
72#define free_thread_info(info) kfree(info)
73
74#endif /* !__ASSEMBLY__ */
75
76#define PREEMPT_ACTIVE 0x10000000
77
78/*
79 * thread information flags
80 * - these are process state flags that various assembly files may need to
81 * access
82 * - pending work-to-be-done flags are in LSW
83 * - other flags in MSW
84 */
85#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
86#define TIF_SIGPENDING 1 /* signal pending */
87#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
88#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
89#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal() */
90#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling
91 TIF_NEED_RESCHED */
92#define TIF_MEMDIE 18
93
94#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
95#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
96#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
97#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
98#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
99#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
100
101#define _TIF_WORK_MASK (0x0000ffff)
102
103#endif /* __KERNEL__ */
104
105#endif /* _ASM_SCORE_THREAD_INFO_H */
diff --git a/arch/score/include/asm/timex.h b/arch/score/include/asm/timex.h
new file mode 100644
index 000000000000..a524ae0c5e7b
--- /dev/null
+++ b/arch/score/include/asm/timex.h
@@ -0,0 +1,8 @@
1#ifndef _ASM_SCORE_TIMEX_H
2#define _ASM_SCORE_TIMEX_H
3
4#define CLOCK_TICK_RATE 27000000 /* Timer input freq. */
5
6#include <asm-generic/timex.h>
7
8#endif /* _ASM_SCORE_TIMEX_H */
diff --git a/arch/score/include/asm/tlb.h b/arch/score/include/asm/tlb.h
new file mode 100644
index 000000000000..46882ed524e6
--- /dev/null
+++ b/arch/score/include/asm/tlb.h
@@ -0,0 +1,17 @@
1#ifndef _ASM_SCORE_TLB_H
2#define _ASM_SCORE_TLB_H
3
4/*
5 * SCORE doesn't need any special per-pte or per-vma handling, except
6 * we need to flush cache for area to be unmapped.
7 */
8#define tlb_start_vma(tlb, vma) do {} while (0)
9#define tlb_end_vma(tlb, vma) do {} while (0)
10#define __tlb_remove_tlb_entry(tlb, ptep, address) do {} while (0)
11#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
12
13extern void score7_FTLB_refill_Handler(void);
14
15#include <asm-generic/tlb.h>
16
17#endif /* _ASM_SCORE_TLB_H */
diff --git a/arch/score/include/asm/tlbflush.h b/arch/score/include/asm/tlbflush.h
new file mode 100644
index 000000000000..9cce978367d5
--- /dev/null
+++ b/arch/score/include/asm/tlbflush.h
@@ -0,0 +1,142 @@
1#ifndef _ASM_SCORE_TLBFLUSH_H
2#define _ASM_SCORE_TLBFLUSH_H
3
4#include <linux/mm.h>
5
6/*
7 * TLB flushing:
8 *
9 * - flush_tlb_all() flushes all processes TLB entries
10 * - flush_tlb_mm(mm) flushes the specified mm context TLB entries
11 * - flush_tlb_page(vma, vmaddr) flushes one page
12 * - flush_tlb_range(vma, start, end) flushes a range of pages
13 * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
14 */
15extern void local_flush_tlb_all(void);
16extern void local_flush_tlb_mm(struct mm_struct *mm);
17extern void local_flush_tlb_range(struct vm_area_struct *vma,
18 unsigned long start, unsigned long end);
19extern void local_flush_tlb_kernel_range(unsigned long start,
20 unsigned long end);
21extern void local_flush_tlb_page(struct vm_area_struct *vma,
22 unsigned long page);
23extern void local_flush_tlb_one(unsigned long vaddr);
24
25#define flush_tlb_all() local_flush_tlb_all()
26#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
27#define flush_tlb_range(vma, vmaddr, end) \
28 local_flush_tlb_range(vma, vmaddr, end)
29#define flush_tlb_kernel_range(vmaddr, end) \
30 local_flush_tlb_kernel_range(vmaddr, end)
31#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
32#define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
33
34#ifndef __ASSEMBLY__
35
36static inline unsigned long pevn_get(void)
37{
38 unsigned long val;
39
40 __asm__ __volatile__(
41 "mfcr %0, cr11\n"
42 "nop\nnop\n"
43 : "=r" (val));
44
45 return val;
46}
47
48static inline void pevn_set(unsigned long val)
49{
50 __asm__ __volatile__(
51 "mtcr %0, cr11\n"
52 "nop\nnop\nnop\nnop\nnop\n"
53 : : "r" (val));
54}
55
56static inline void pectx_set(unsigned long val)
57{
58 __asm__ __volatile__(
59 "mtcr %0, cr12\n"
60 "nop\nnop\nnop\nnop\nnop\n"
61 : : "r" (val));
62}
63
64static inline unsigned long pectx_get(void)
65{
66 unsigned long val;
67 __asm__ __volatile__(
68 "mfcr %0, cr12\n"
69 "nop\nnop\n"
70 : "=r" (val));
71 return val;
72}
73static inline unsigned long tlblock_get(void)
74{
75 unsigned long val;
76
77 __asm__ __volatile__(
78 "mfcr %0, cr7\n"
79 "nop\nnop\n"
80 : "=r" (val));
81 return val;
82}
83static inline void tlblock_set(unsigned long val)
84{
85 __asm__ __volatile__(
86 "mtcr %0, cr7\n"
87 "nop\nnop\nnop\nnop\nnop\n"
88 : : "r" (val));
89}
90
91static inline void tlbpt_set(unsigned long val)
92{
93 __asm__ __volatile__(
94 "mtcr %0, cr8\n"
95 "nop\nnop\nnop\nnop\nnop\n"
96 : : "r" (val));
97}
98
99static inline long tlbpt_get(void)
100{
101 long val;
102
103 __asm__ __volatile__(
104 "mfcr %0, cr8\n"
105 "nop\nnop\n"
106 : "=r" (val));
107
108 return val;
109}
110
111static inline void peaddr_set(unsigned long val)
112{
113 __asm__ __volatile__(
114 "mtcr %0, cr9\n"
115 "nop\nnop\nnop\nnop\nnop\n"
116 : : "r" (val));
117}
118
119/* TLB operations. */
120static inline void tlb_probe(void)
121{
122 __asm__ __volatile__("stlb;nop;nop;nop;nop;nop");
123}
124
125static inline void tlb_read(void)
126{
127 __asm__ __volatile__("mftlb;nop;nop;nop;nop;nop");
128}
129
130static inline void tlb_write_indexed(void)
131{
132 __asm__ __volatile__("mtptlb;nop;nop;nop;nop;nop");
133}
134
135static inline void tlb_write_random(void)
136{
137 __asm__ __volatile__("mtrtlb;nop;nop;nop;nop;nop");
138}
139
140#endif /* Not __ASSEMBLY__ */
141
142#endif /* _ASM_SCORE_TLBFLUSH_H */
diff --git a/arch/score/include/asm/topology.h b/arch/score/include/asm/topology.h
new file mode 100644
index 000000000000..425fba381f88
--- /dev/null
+++ b/arch/score/include/asm/topology.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_TOPOLOGY_H
2#define _ASM_SCORE_TOPOLOGY_H
3
4#include <asm-generic/topology.h>
5
6#endif /* _ASM_SCORE_TOPOLOGY_H */
diff --git a/arch/score/include/asm/types.h b/arch/score/include/asm/types.h
new file mode 100644
index 000000000000..2140032778ee
--- /dev/null
+++ b/arch/score/include/asm/types.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_TYPES_H
2#define _ASM_SCORE_TYPES_H
3
4#include <asm-generic/types.h>
5
6#endif /* _ASM_SCORE_TYPES_H */
diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h
new file mode 100644
index 000000000000..ab66ddde777b
--- /dev/null
+++ b/arch/score/include/asm/uaccess.h
@@ -0,0 +1,424 @@
1#ifndef __SCORE_UACCESS_H
2#define __SCORE_UACCESS_H
3
4#include <linux/kernel.h>
5#include <linux/errno.h>
6#include <linux/thread_info.h>
7
8#define VERIFY_READ 0
9#define VERIFY_WRITE 1
10
11#define get_ds() (KERNEL_DS)
12#define get_fs() (current_thread_info()->addr_limit)
13#define segment_eq(a, b) ((a).seg == (b).seg)
14
15/*
16 * Is a address valid? This does a straighforward calculation rather
17 * than tests.
18 *
19 * Address valid if:
20 * - "addr" doesn't have any high-bits set
21 * - AND "size" doesn't have any high-bits set
22 * - AND "addr+size" doesn't have any high-bits set
23 * - OR we are in kernel mode.
24 *
25 * __ua_size() is a trick to avoid runtime checking of positive constant
26 * sizes; for those we already know at compile time that the size is ok.
27 */
28#define __ua_size(size) \
29 ((__builtin_constant_p(size) && (signed long) (size) > 0) ? 0 : (size))
30
31/*
32 * access_ok: - Checks if a user space pointer is valid
33 * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE. Note that
34 * %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
35 * to write to a block, it is always safe to read from it.
36 * @addr: User space pointer to start of block to check
37 * @size: Size of block to check
38 *
39 * Context: User context only. This function may sleep.
40 *
41 * Checks if a pointer to a block of memory in user space is valid.
42 *
43 * Returns true (nonzero) if the memory block may be valid, false (zero)
44 * if it is definitely invalid.
45 *
46 * Note that, depending on architecture, this function probably just
47 * checks that the pointer is in the user space range - after calling
48 * this function, memory access functions may still return -EFAULT.
49 */
50
51#define __access_ok(addr, size) \
52 (((long)((get_fs().seg) & \
53 ((addr) | ((addr) + (size)) | \
54 __ua_size(size)))) == 0)
55
56#define access_ok(type, addr, size) \
57 likely(__access_ok((unsigned long)(addr), (size)))
58
59/*
60 * put_user: - Write a simple value into user space.
61 * @x: Value to copy to user space.
62 * @ptr: Destination address, in user space.
63 *
64 * Context: User context only. This function may sleep.
65 *
66 * This macro copies a single simple value from kernel space to user
67 * space. It supports simple types like char and int, but not larger
68 * data types like structures or arrays.
69 *
70 * @ptr must have pointer-to-simple-variable type, and @x must be assignable
71 * to the result of dereferencing @ptr.
72 *
73 * Returns zero on success, or -EFAULT on error.
74 */
75#define put_user(x, ptr) __put_user_check((x), (ptr), sizeof(*(ptr)))
76
77/*
78 * get_user: - Get a simple variable from user space.
79 * @x: Variable to store result.
80 * @ptr: Source address, in user space.
81 *
82 * Context: User context only. This function may sleep.
83 *
84 * This macro copies a single simple variable from user space to kernel
85 * space. It supports simple types like char and int, but not larger
86 * data types like structures or arrays.
87 *
88 * @ptr must have pointer-to-simple-variable type, and the result of
89 * dereferencing @ptr must be assignable to @x without a cast.
90 *
91 * Returns zero on success, or -EFAULT on error.
92 * On error, the variable @x is set to zero.
93 */
94#define get_user(x, ptr) __get_user_check((x), (ptr), sizeof(*(ptr)))
95
96/*
97 * __put_user: - Write a simple value into user space, with less checking.
98 * @x: Value to copy to user space.
99 * @ptr: Destination address, in user space.
100 *
101 * Context: User context only. This function may sleep.
102 *
103 * This macro copies a single simple value from kernel space to user
104 * space. It supports simple types like char and int, but not larger
105 * data types like structures or arrays.
106 *
107 * @ptr must have pointer-to-simple-variable type, and @x must be assignable
108 * to the result of dereferencing @ptr.
109 *
110 * Caller must check the pointer with access_ok() before calling this
111 * function.
112 *
113 * Returns zero on success, or -EFAULT on error.
114 */
115#define __put_user(x, ptr) __put_user_nocheck((x), (ptr), sizeof(*(ptr)))
116
117/*
118 * __get_user: - Get a simple variable from user space, with less checking.
119 * @x: Variable to store result.
120 * @ptr: Source address, in user space.
121 *
122 * Context: User context only. This function may sleep.
123 *
124 * This macro copies a single simple variable from user space to kernel
125 * space. It supports simple types like char and int, but not larger
126 * data types like structures or arrays.
127 *
128 * @ptr must have pointer-to-simple-variable type, and the result of
129 * dereferencing @ptr must be assignable to @x without a cast.
130 *
131 * Caller must check the pointer with access_ok() before calling this
132 * function.
133 *
134 * Returns zero on success, or -EFAULT on error.
135 * On error, the variable @x is set to zero.
136 */
137#define __get_user(x, ptr) __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
138
139struct __large_struct { unsigned long buf[100]; };
140#define __m(x) (*(struct __large_struct __user *)(x))
141
142/*
143 * Yuck. We need two variants, one for 64bit operation and one
144 * for 32 bit mode and old iron.
145 */
146extern void __get_user_unknown(void);
147
148#define __get_user_common(val, size, ptr) \
149do { \
150 switch (size) { \
151 case 1: \
152 __get_user_asm(val, "lb", ptr); \
153 break; \
154 case 2: \
155 __get_user_asm(val, "lh", ptr); \
156 break; \
157 case 4: \
158 __get_user_asm(val, "lw", ptr); \
159 break; \
160 case 8: \
161 if ((copy_from_user((void *)&val, ptr, 8)) == 0) \
162 __gu_err = 0; \
163 else \
164 __gu_err = -EFAULT; \
165 break; \
166 default: \
167 __get_user_unknown(); \
168 break; \
169 } \
170} while (0)
171
172#define __get_user_nocheck(x, ptr, size) \
173({ \
174 long __gu_err = 0; \
175 __get_user_common((x), size, ptr); \
176 __gu_err; \
177})
178
179#define __get_user_check(x, ptr, size) \
180({ \
181 long __gu_err = -EFAULT; \
182 const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
183 \
184 if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
185 __get_user_common((x), size, __gu_ptr); \
186 \
187 __gu_err; \
188})
189
190#define __get_user_asm(val, insn, addr) \
191{ \
192 long __gu_tmp; \
193 \
194 __asm__ __volatile__( \
195 "1:" insn " %1, %3\n" \
196 "2:\n" \
197 ".section .fixup,\"ax\"\n" \
198 "3:li %0, %4\n" \
199 "j 2b\n" \
200 ".previous\n" \
201 ".section __ex_table,\"a\"\n" \
202 ".word 1b, 3b\n" \
203 ".previous\n" \
204 : "=r" (__gu_err), "=r" (__gu_tmp) \
205 : "0" (0), "o" (__m(addr)), "i" (-EFAULT)); \
206 \
207 (val) = (__typeof__(*(addr))) __gu_tmp; \
208}
209
210/*
211 * Yuck. We need two variants, one for 64bit operation and one
212 * for 32 bit mode and old iron.
213 */
214#define __put_user_nocheck(val, ptr, size) \
215({ \
216 __typeof__(*(ptr)) __pu_val; \
217 long __pu_err = 0; \
218 \
219 __pu_val = (val); \
220 switch (size) { \
221 case 1: \
222 __put_user_asm("sb", ptr); \
223 break; \
224 case 2: \
225 __put_user_asm("sh", ptr); \
226 break; \
227 case 4: \
228 __put_user_asm("sw", ptr); \
229 break; \
230 case 8: \
231 if ((__copy_to_user((void *)ptr, &__pu_val, 8)) == 0) \
232 __pu_err = 0; \
233 else \
234 __pu_err = -EFAULT; \
235 break; \
236 default: \
237 __put_user_unknown(); \
238 break; \
239 } \
240 __pu_err; \
241})
242
243
244#define __put_user_check(val, ptr, size) \
245({ \
246 __typeof__(*(ptr)) __user *__pu_addr = (ptr); \
247 __typeof__(*(ptr)) __pu_val = (val); \
248 long __pu_err = -EFAULT; \
249 \
250 if (likely(access_ok(VERIFY_WRITE, __pu_addr, size))) { \
251 switch (size) { \
252 case 1: \
253 __put_user_asm("sb", __pu_addr); \
254 break; \
255 case 2: \
256 __put_user_asm("sh", __pu_addr); \
257 break; \
258 case 4: \
259 __put_user_asm("sw", __pu_addr); \
260 break; \
261 case 8: \
262 if ((__copy_to_user((void *)__pu_addr, &__pu_val, 8)) == 0)\
263 __pu_err = 0; \
264 else \
265 __pu_err = -EFAULT; \
266 break; \
267 default: \
268 __put_user_unknown(); \
269 break; \
270 } \
271 } \
272 __pu_err; \
273})
274
275#define __put_user_asm(insn, ptr) \
276 __asm__ __volatile__( \
277 "1:" insn " %2, %3\n" \
278 "2:\n" \
279 ".section .fixup,\"ax\"\n" \
280 "3:li %0, %4\n" \
281 "j 2b\n" \
282 ".previous\n" \
283 ".section __ex_table,\"a\"\n" \
284 ".word 1b, 3b\n" \
285 ".previous\n" \
286 : "=r" (__pu_err) \
287 : "0" (0), "r" (__pu_val), "o" (__m(ptr)), \
288 "i" (-EFAULT));
289
290extern void __put_user_unknown(void);
291extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
292
293static inline unsigned long
294copy_from_user(void *to, const void *from, unsigned long len)
295{
296 unsigned long over;
297
298 if (access_ok(VERIFY_READ, from, len))
299 return __copy_tofrom_user(to, from, len);
300
301 if ((unsigned long)from < TASK_SIZE) {
302 over = (unsigned long)from + len - TASK_SIZE;
303 return __copy_tofrom_user(to, from, len - over) + over;
304 }
305 return len;
306}
307
308static inline unsigned long
309copy_to_user(void *to, const void *from, unsigned long len)
310{
311 unsigned long over;
312
313 if (access_ok(VERIFY_WRITE, to, len))
314 return __copy_tofrom_user(to, from, len);
315
316 if ((unsigned long)to < TASK_SIZE) {
317 over = (unsigned long)to + len - TASK_SIZE;
318 return __copy_tofrom_user(to, from, len - over) + over;
319 }
320 return len;
321}
322
323#define __copy_from_user(to, from, len) \
324 __copy_tofrom_user((to), (from), (len))
325
326#define __copy_to_user(to, from, len) \
327 __copy_tofrom_user((to), (from), (len))
328
329static inline unsigned long
330__copy_to_user_inatomic(void *to, const void *from, unsigned long len)
331{
332 return __copy_to_user(to, from, len);
333}
334
335static inline unsigned long
336__copy_from_user_inatomic(void *to, const void *from, unsigned long len)
337{
338 return __copy_from_user(to, from, len);
339}
340
341#define __copy_in_user(to, from, len) __copy_from_user(to, from, len)
342
343static inline unsigned long
344copy_in_user(void *to, const void *from, unsigned long len)
345{
346 if (access_ok(VERIFY_READ, from, len) &&
347 access_ok(VERFITY_WRITE, to, len))
348 return copy_from_user(to, from, len);
349}
350
351/*
352 * __clear_user: - Zero a block of memory in user space, with less checking.
353 * @to: Destination address, in user space.
354 * @n: Number of bytes to zero.
355 *
356 * Zero a block of memory in user space. Caller must check
357 * the specified block with access_ok() before calling this function.
358 *
359 * Returns number of bytes that could not be cleared.
360 * On success, this will be zero.
361 */
362extern unsigned long __clear_user(void __user *src, unsigned long size);
363
364static inline unsigned long clear_user(char *src, unsigned long size)
365{
366 if (access_ok(VERIFY_WRITE, src, size))
367 return __clear_user(src, size);
368
369 return -EFAULT;
370}
371/*
372 * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
373 * @dst: Destination address, in kernel space. This buffer must be at
374 * least @count bytes long.
375 * @src: Source address, in user space.
376 * @count: Maximum number of bytes to copy, including the trailing NUL.
377 *
378 * Copies a NUL-terminated string from userspace to kernel space.
379 * Caller must check the specified block with access_ok() before calling
380 * this function.
381 *
382 * On success, returns the length of the string (not including the trailing
383 * NUL).
384 *
385 * If access to userspace fails, returns -EFAULT (some data may have been
386 * copied).
387 *
388 * If @count is smaller than the length of the string, copies @count bytes
389 * and returns @count.
390 */
391extern int __strncpy_from_user(char *dst, const char *src, long len);
392
393static inline int strncpy_from_user(char *dst, const char *src, long len)
394{
395 if (access_ok(VERIFY_READ, src, 1))
396 return __strncpy_from_user(dst, src, len);
397
398 return -EFAULT;
399}
400
401extern int __strlen_user(const char *src);
402static inline long strlen_user(const char __user *src)
403{
404 return __strlen_user(src);
405}
406
407extern int __strnlen_user(const char *str, long len);
408static inline long strnlen_user(const char __user *str, long len)
409{
410 if (!access_ok(VERIFY_READ, str, 0))
411 return 0;
412 else
413 return __strnlen_user(str, len);
414}
415
416struct exception_table_entry {
417 unsigned long insn;
418 unsigned long fixup;
419};
420
421extern int fixup_exception(struct pt_regs *regs);
422
423#endif /* __SCORE_UACCESS_H */
424
diff --git a/arch/score/include/asm/ucontext.h b/arch/score/include/asm/ucontext.h
new file mode 100644
index 000000000000..9bc07b9f30fb
--- /dev/null
+++ b/arch/score/include/asm/ucontext.h
@@ -0,0 +1 @@
#include <asm-generic/ucontext.h>
diff --git a/arch/score/include/asm/unaligned.h b/arch/score/include/asm/unaligned.h
new file mode 100644
index 000000000000..2fc06de51c62
--- /dev/null
+++ b/arch/score/include/asm/unaligned.h
@@ -0,0 +1,6 @@
1#ifndef _ASM_SCORE_UNALIGNED_H
2#define _ASM_SCORE_UNALIGNED_H
3
4#include <asm-generic/unaligned.h>
5
6#endif /* _ASM_SCORE_UNALIGNED_H */
diff --git a/arch/score/include/asm/unistd.h b/arch/score/include/asm/unistd.h
new file mode 100644
index 000000000000..4aa957364d4d
--- /dev/null
+++ b/arch/score/include/asm/unistd.h
@@ -0,0 +1,13 @@
1#if !defined(_ASM_SCORE_UNISTD_H) || defined(__SYSCALL)
2#define _ASM_SCORE_UNISTD_H
3
4#define __ARCH_HAVE_MMU
5
6#define __ARCH_WANT_SYSCALL_NO_AT
7#define __ARCH_WANT_SYSCALL_NO_FLAGS
8#define __ARCH_WANT_SYSCALL_OFF_T
9#define __ARCH_WANT_SYSCALL_DEPRECATED
10
11#include <asm-generic/unistd.h>
12
13#endif /* _ASM_SCORE_UNISTD_H */
diff --git a/arch/score/include/asm/user.h b/arch/score/include/asm/user.h
new file mode 100644
index 000000000000..7bfb8e2c8054
--- /dev/null
+++ b/arch/score/include/asm/user.h
@@ -0,0 +1,21 @@
1#ifndef _ASM_SCORE_USER_H
2#define _ASM_SCORE_USER_H
3
4struct user_regs_struct {
5 unsigned long regs[32];
6
7 unsigned long cel;
8 unsigned long ceh;
9
10 unsigned long sr0; /* cnt */
11 unsigned long sr1; /* lcr */
12 unsigned long sr2; /* scr */
13
14 unsigned long cp0_epc;
15 unsigned long cp0_ema;
16 unsigned long cp0_psr;
17 unsigned long cp0_ecr;
18 unsigned long cp0_condition;
19};
20
21#endif /* _ASM_SCORE_USER_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-26 17:16:30 -0500