diff options
author | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 00:30:16 -0400 |
---|---|---|
committer | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 00:30:16 -0400 |
commit | ffa818b4b099f65b6cb74750bdb979061716e020 (patch) | |
tree | 2bb6917efd2590e02ffebd12356a990616414262 /arch/score/include | |
parent | d8aa899bb27ad7879ab9e621365e04ada2745a65 (diff) |
score: update inconsistent declare after .c was changed
Diffstat (limited to 'arch/score/include')
-rw-r--r-- | arch/score/include/asm/irq.h | 2 | ||||
-rw-r--r-- | arch/score/include/asm/irq_regs.h | 7 | ||||
-rw-r--r-- | arch/score/include/asm/linkage.h | 3 | ||||
-rw-r--r-- | arch/score/include/asm/page.h | 4 | ||||
-rw-r--r-- | arch/score/include/asm/pgalloc.h | 2 | ||||
-rw-r--r-- | arch/score/include/asm/pgtable.h | 31 | ||||
-rw-r--r-- | arch/score/include/asm/ptrace.h | 8 | ||||
-rw-r--r-- | arch/score/include/asm/uaccess.h | 433 | ||||
-rw-r--r-- | arch/score/include/asm/user.h | 17 |
9 files changed, 472 insertions, 35 deletions
diff --git a/arch/score/include/asm/irq.h b/arch/score/include/asm/irq.h index 6edd2a2adef7..c883f3df33fa 100644 --- a/arch/score/include/asm/irq.h +++ b/arch/score/include/asm/irq.h | |||
@@ -20,4 +20,6 @@ | |||
20 | 20 | ||
21 | #define IRQ_TIMER (7) /* Timer IRQ number of SPCT6600 */ | 21 | #define IRQ_TIMER (7) /* Timer IRQ number of SPCT6600 */ |
22 | 22 | ||
23 | extern void interrupt_exception_vector(void); | ||
24 | |||
23 | #endif /* _ASM_SCORE_IRQ_H */ | 25 | #endif /* _ASM_SCORE_IRQ_H */ |
diff --git a/arch/score/include/asm/irq_regs.h b/arch/score/include/asm/irq_regs.h index 905b7b078bae..b8e881c9a69f 100644 --- a/arch/score/include/asm/irq_regs.h +++ b/arch/score/include/asm/irq_regs.h | |||
@@ -1,6 +1,11 @@ | |||
1 | #ifndef _ASM_SCORE_IRQ_REGS_H | 1 | #ifndef _ASM_SCORE_IRQ_REGS_H |
2 | #define _ASM_SCORE_IRQ_REGS_H | 2 | #define _ASM_SCORE_IRQ_REGS_H |
3 | 3 | ||
4 | #include <asm-generic/irq_regs.h> | 4 | #include <linux/thread_info.h> |
5 | |||
6 | static inline struct pt_regs *get_irq_regs(void) | ||
7 | { | ||
8 | return current_thread_info()->regs; | ||
9 | } | ||
5 | 10 | ||
6 | #endif /* _ASM_SCORE_IRQ_REGS_H */ | 11 | #endif /* _ASM_SCORE_IRQ_REGS_H */ |
diff --git a/arch/score/include/asm/linkage.h b/arch/score/include/asm/linkage.h index 2580fbbfe946..2323a8ecf445 100644 --- a/arch/score/include/asm/linkage.h +++ b/arch/score/include/asm/linkage.h | |||
@@ -1,4 +1,7 @@ | |||
1 | #ifndef _ASM_SCORE_LINKAGE_H | 1 | #ifndef _ASM_SCORE_LINKAGE_H |
2 | #define _ASM_SCORE_LINKAGE_H | 2 | #define _ASM_SCORE_LINKAGE_H |
3 | 3 | ||
4 | #define __ALIGN .align 2 | ||
5 | #define __ALIGN_STR ".align 2" | ||
6 | |||
4 | #endif /* _ASM_SCORE_LINKAGE_H */ | 7 | #endif /* _ASM_SCORE_LINKAGE_H */ |
diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h index 67e98206be6a..ee5821042fcc 100644 --- a/arch/score/include/asm/page.h +++ b/arch/score/include/asm/page.h | |||
@@ -57,8 +57,8 @@ extern unsigned long max_low_pfn; | |||
57 | extern unsigned long min_low_pfn; | 57 | extern unsigned long min_low_pfn; |
58 | extern unsigned long max_pfn; | 58 | extern unsigned long max_pfn; |
59 | 59 | ||
60 | #define __pa(vaddr) ((unsigned long) (vaddr)) | 60 | #define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) |
61 | #define __va(paddr) ((void *) (paddr)) | 61 | #define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) |
62 | 62 | ||
63 | #define phys_to_pfn(phys) (PFN_DOWN(phys)) | 63 | #define phys_to_pfn(phys) (PFN_DOWN(phys)) |
64 | #define pfn_to_phys(pfn) (PFN_PHYS(pfn)) | 64 | #define pfn_to_phys(pfn) (PFN_PHYS(pfn)) |
diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h index 28dacc1cbbab..059a61b7071b 100644 --- a/arch/score/include/asm/pgalloc.h +++ b/arch/score/include/asm/pgalloc.h | |||
@@ -72,7 +72,7 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte) | |||
72 | __free_pages(pte, PTE_ORDER); | 72 | __free_pages(pte, PTE_ORDER); |
73 | } | 73 | } |
74 | 74 | ||
75 | #define __pte_free_tlb(tlb, pte) \ | 75 | #define __pte_free_tlb(tlb, pte, buf) \ |
76 | do { \ | 76 | do { \ |
77 | pgtable_page_dtor(pte); \ | 77 | pgtable_page_dtor(pte); \ |
78 | tlb_remove_page((tlb), pte); \ | 78 | tlb_remove_page((tlb), pte); \ |
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h index 5e913e57c671..674934b40170 100644 --- a/arch/score/include/asm/pgtable.h +++ b/arch/score/include/asm/pgtable.h | |||
@@ -106,7 +106,8 @@ static inline void pmd_clear(pmd_t *pmdp) | |||
106 | ((swp_entry_t) { pte_val(pte)}) | 106 | ((swp_entry_t) { pte_val(pte)}) |
107 | #define __swp_entry_to_pte(x) ((pte_t) {(x).val}) | 107 | #define __swp_entry_to_pte(x) ((pte_t) {(x).val}) |
108 | 108 | ||
109 | #define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd))) | 109 | #define pmd_phys(pmd) __pa((void *)pmd_val(pmd)) |
110 | #define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT)) | ||
110 | #define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot) | 111 | #define mk_pte(page, prot) pfn_pte(page_to_pfn(page), prot) |
111 | static inline pte_t pte_mkspecial(pte_t pte) { return pte; } | 112 | static inline pte_t pte_mkspecial(pte_t pte) { return pte; } |
112 | 113 | ||
@@ -129,14 +130,11 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; } | |||
129 | #define pgd_clear(pgdp) do { } while (0) | 130 | #define pgd_clear(pgdp) do { } while (0) |
130 | 131 | ||
131 | #define kern_addr_valid(addr) (1) | 132 | #define kern_addr_valid(addr) (1) |
132 | #define pmd_offset(a, b) ((void *) 0) | ||
133 | #define pmd_page_vaddr(pmd) pmd_val(pmd) | 133 | #define pmd_page_vaddr(pmd) pmd_val(pmd) |
134 | 134 | ||
135 | #define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL)) | 135 | #define pte_none(pte) (!(pte_val(pte) & ~_PAGE_GLOBAL)) |
136 | #define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT) | 136 | #define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT) |
137 | 137 | ||
138 | #define pud_offset(pgd, address) ((pud_t *) pgd) | ||
139 | |||
140 | #define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_CACHE) | 138 | #define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_CACHE) |
141 | #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ | 139 | #define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_READ | _PAGE_WRITE | \ |
142 | _PAGE_CACHE) | 140 | _PAGE_CACHE) |
@@ -165,15 +163,27 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; } | |||
165 | #define __S110 PAGE_SHARED | 163 | #define __S110 PAGE_SHARED |
166 | #define __S111 PAGE_SHARED | 164 | #define __S111 PAGE_SHARED |
167 | 165 | ||
168 | #define pgprot_noncached(x) (x) | 166 | #define pgprot_noncached pgprot_noncached |
167 | |||
168 | static 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 | } | ||
169 | 176 | ||
170 | #define __swp_type(x) (0) | 177 | #define __swp_type(x) ((x).val & 0x1f) |
171 | #define __swp_offset(x) (0) | 178 | #define __swp_offset(x) ((x).val >> 11) |
172 | #define __swp_entry(typ, off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) | 179 | #define __swp_entry(type, offset) ((swp_entry_t){(type) | ((offset) << 11)}) |
173 | 180 | ||
174 | #define ZERO_PAGE(vaddr) ({ BUG(); NULL; }) | 181 | extern unsigned long empty_zero_page; |
182 | extern unsigned long zero_page_mask; | ||
175 | 183 | ||
176 | #define swapper_pg_dir ((pgd_t *) NULL) | 184 | #define ZERO_PAGE(vaddr) \ |
185 | (virt_to_page((void *)(empty_zero_page + \ | ||
186 | (((unsigned long)(vaddr)) & zero_page_mask)))) | ||
177 | 187 | ||
178 | #define pgtable_cache_init() do {} while (0) | 188 | #define pgtable_cache_init() do {} while (0) |
179 | 189 | ||
@@ -248,6 +258,7 @@ static inline pte_t pte_mkyoung(pte_t pte) | |||
248 | #define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT) | 258 | #define pte_present(pte) (pte_val(pte) & _PAGE_PRESENT) |
249 | 259 | ||
250 | extern unsigned long pgd_current; | 260 | extern unsigned long pgd_current; |
261 | extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; | ||
251 | extern void paging_init(void); | 262 | extern void paging_init(void); |
252 | 263 | ||
253 | static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) | 264 | static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) |
diff --git a/arch/score/include/asm/ptrace.h b/arch/score/include/asm/ptrace.h index 66b14c8891cf..d40e691f23e2 100644 --- a/arch/score/include/asm/ptrace.h +++ b/arch/score/include/asm/ptrace.h | |||
@@ -51,9 +51,11 @@ | |||
51 | * system call/exception. As usual the registers k0/k1 aren't being saved. | 51 | * system call/exception. As usual the registers k0/k1 aren't being saved. |
52 | */ | 52 | */ |
53 | struct pt_regs { | 53 | struct pt_regs { |
54 | unsigned long pad0[6]; | 54 | unsigned long pad0[6]; /* stack arguments */ |
55 | unsigned long orig_r4; | 55 | unsigned long orig_r4; |
56 | unsigned long orig_r7; | 56 | unsigned long orig_r7; |
57 | long is_syscall; | ||
58 | |||
57 | unsigned long regs[32]; | 59 | unsigned long regs[32]; |
58 | 60 | ||
59 | unsigned long cel; | 61 | unsigned long cel; |
@@ -68,12 +70,12 @@ struct pt_regs { | |||
68 | unsigned long cp0_psr; | 70 | unsigned long cp0_psr; |
69 | unsigned long cp0_ecr; | 71 | unsigned long cp0_ecr; |
70 | unsigned long cp0_condition; | 72 | unsigned long cp0_condition; |
71 | |||
72 | long is_syscall; | ||
73 | }; | 73 | }; |
74 | 74 | ||
75 | #ifdef __KERNEL__ | 75 | #ifdef __KERNEL__ |
76 | 76 | ||
77 | struct task_struct; | ||
78 | |||
77 | /* | 79 | /* |
78 | * Does the process account for user or for system time? | 80 | * Does the process account for user or for system time? |
79 | */ | 81 | */ |
diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h index 6f09e2b7ddb9..ab66ddde777b 100644 --- a/arch/score/include/asm/uaccess.h +++ b/arch/score/include/asm/uaccess.h | |||
@@ -1,27 +1,424 @@ | |||
1 | #ifndef _ASM_SCORE_UACCESS_H | 1 | #ifndef __SCORE_UACCESS_H |
2 | #define _ASM_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 | |||
3 | /* | 15 | /* |
4 | * Copyright (C) 2006 Atmark Techno, Inc. | 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. | ||
5 | * | 24 | * |
6 | * This file is subject to the terms and conditions of the GNU General Public | 25 | * __ua_size() is a trick to avoid runtime checking of positive constant |
7 | * License. See the file "COPYING" in the main directory of this archive | 26 | * sizes; for those we already know at compile time that the size is ok. |
8 | * for more details. | ||
9 | */ | 27 | */ |
10 | struct pt_regs; | 28 | #define __ua_size(size) \ |
11 | extern int fixup_exception(struct pt_regs *regs); | 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 | |||
139 | struct __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 | */ | ||
146 | extern void __get_user_unknown(void); | ||
147 | |||
148 | #define __get_user_common(val, size, ptr) \ | ||
149 | do { \ | ||
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 | |||
290 | extern void __put_user_unknown(void); | ||
291 | extern int __copy_tofrom_user(void *to, const void *from, unsigned long len); | ||
292 | |||
293 | static inline unsigned long | ||
294 | copy_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 | |||
308 | static inline unsigned long | ||
309 | copy_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 | } | ||
12 | 322 | ||
13 | #ifndef __ASSEMBLY__ | 323 | #define __copy_from_user(to, from, len) \ |
324 | __copy_tofrom_user((to), (from), (len)) | ||
14 | 325 | ||
15 | #define __range_ok(addr, size) \ | 326 | #define __copy_to_user(to, from, len) \ |
16 | ((((unsigned long __force)(addr) >= 0x80000000) \ | 327 | __copy_tofrom_user((to), (from), (len)) |
17 | || ((unsigned long)(size) > 0x80000000) \ | ||
18 | || (((unsigned long __force)(addr) + (unsigned long)(size)) > 0x80000000))) | ||
19 | 328 | ||
20 | #define __access_ok(addr, size) \ | 329 | static inline unsigned long |
21 | (__range_ok((addr), (size)) == 0) | 330 | __copy_to_user_inatomic(void *to, const void *from, unsigned long len) |
331 | { | ||
332 | return __copy_to_user(to, from, len); | ||
333 | } | ||
22 | 334 | ||
23 | #include <asm-generic/uaccess.h> | 335 | static 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 | |||
343 | static inline unsigned long | ||
344 | copy_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 | */ | ||
362 | extern unsigned long __clear_user(void __user *src, unsigned long size); | ||
363 | |||
364 | static 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 | */ | ||
391 | extern int __strncpy_from_user(char *dst, const char *src, long len); | ||
392 | |||
393 | static 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 | |||
401 | extern int __strlen_user(const char *src); | ||
402 | static inline long strlen_user(const char __user *src) | ||
403 | { | ||
404 | return __strlen_user(src); | ||
405 | } | ||
406 | |||
407 | extern int __strnlen_user(const char *str, long len); | ||
408 | static 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 | |||
416 | struct exception_table_entry { | ||
417 | unsigned long insn; | ||
418 | unsigned long fixup; | ||
419 | }; | ||
420 | |||
421 | extern int fixup_exception(struct pt_regs *regs); | ||
24 | 422 | ||
25 | #endif /* __ASSEMBLY__ */ | 423 | #endif /* __SCORE_UACCESS_H */ |
26 | 424 | ||
27 | #endif /* _ASM_SCORE_UACCESS_H */ | ||
diff --git a/arch/score/include/asm/user.h b/arch/score/include/asm/user.h index 3cf75720fe08..7bfb8e2c8054 100644 --- a/arch/score/include/asm/user.h +++ b/arch/score/include/asm/user.h | |||
@@ -1,4 +1,21 @@ | |||
1 | #ifndef _ASM_SCORE_USER_H | 1 | #ifndef _ASM_SCORE_USER_H |
2 | #define _ASM_SCORE_USER_H | 2 | #define _ASM_SCORE_USER_H |
3 | 3 | ||
4 | struct 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 | |||
4 | #endif /* _ASM_SCORE_USER_H */ | 21 | #endif /* _ASM_SCORE_USER_H */ |