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-rw-r--r--arch/m68k/Kconfig1
-rw-r--r--arch/m68k/include/asm/bitops_no.h18
-rw-r--r--arch/m68k/include/asm/io_no.h8
-rw-r--r--arch/m68k/kernel/asm-offsets.c106
-rw-r--r--arch/m68k/kernel/asm-offsets_mm.c100
-rw-r--r--arch/m68k/kernel/asm-offsets_no.c76
-rw-r--r--arch/m68k/kernel/entry_no.S1
-rw-r--r--arch/m68k/kernel/irq.c28
-rw-r--r--arch/m68k/kernel/m68k_ksyms.c36
-rw-r--r--arch/m68k/kernel/m68k_ksyms_mm.c16
-rw-r--r--arch/m68k/kernel/m68k_ksyms_no.c78
-rw-r--r--arch/m68k/kernel/process_no.c2
-rw-r--r--arch/m68k/kernel/sys_m68k.c581
-rw-r--r--arch/m68k/kernel/sys_m68k_mm.c546
-rw-r--r--arch/m68k/kernel/sys_m68k_no.c94
-rw-r--r--arch/m68k/kernel/syscalltable.S1
-rw-r--r--arch/m68k/lib/Makefile13
-rw-r--r--arch/m68k/lib/Makefile_mm6
-rw-r--r--arch/m68k/lib/Makefile_no7
-rw-r--r--arch/m68k/lib/checksum.c5
-rw-r--r--arch/m68k/lib/checksum_no.c3
-rw-r--r--arch/m68k/lib/memcpy.c128
-rw-r--r--arch/m68k/lib/memmove.c2
-rw-r--r--arch/m68k/lib/memset.c114
-rw-r--r--arch/m68k/lib/muldi3.c99
-rw-r--r--arch/m68k/lib/muldi3_mm.c63
-rw-r--r--arch/m68k/lib/muldi3_no.c86
-rw-r--r--arch/m68k/lib/string.c223
-rw-r--r--arch/m68k/mm/Makefile14
-rw-r--r--arch/m68k/mm/Makefile_mm8
-rw-r--r--arch/m68k/mm/Makefile_no5
-rw-r--r--arch/m68k/mm/init_no.c51
-rw-r--r--arch/m68k/mm/kmap.c368
-rw-r--r--arch/m68k/mm/kmap_mm.c367
-rw-r--r--arch/m68k/mm/kmap_no.c45
-rw-r--r--arch/m68k/platform/68328/entry.S7
-rw-r--r--arch/m68k/platform/68360/entry.S7
-rw-r--r--arch/m68k/platform/coldfire/dma.c3
-rw-r--r--arch/m68k/platform/coldfire/entry.S11
-rw-r--r--arch/m68k/platform/coldfire/head.S1
40 files changed, 1368 insertions, 1960 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 75531da02a4..d66e34c718d 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -5,6 +5,7 @@ config M68K
5 select HAVE_AOUT if MMU 5 select HAVE_AOUT if MMU
6 select GENERIC_ATOMIC64 if MMU 6 select GENERIC_ATOMIC64 if MMU
7 select HAVE_GENERIC_HARDIRQS if !MMU 7 select HAVE_GENERIC_HARDIRQS if !MMU
8 select GENERIC_IRQ_SHOW if !MMU
8 9
9config RWSEM_GENERIC_SPINLOCK 10config RWSEM_GENERIC_SPINLOCK
10 bool 11 bool
diff --git a/arch/m68k/include/asm/bitops_no.h b/arch/m68k/include/asm/bitops_no.h
index 7d3779fdc5b..6b0e2d349f0 100644
--- a/arch/m68k/include/asm/bitops_no.h
+++ b/arch/m68k/include/asm/bitops_no.h
@@ -246,23 +246,7 @@ static inline int __test_and_clear_bit_le(int nr, volatile void *addr)
246 return retval; 246 return retval;
247} 247}
248 248
249#define ext2_set_bit_atomic(lock, nr, addr) \ 249#include <asm-generic/bitops/ext2-atomic.h>
250 ({ \
251 int ret; \
252 spin_lock(lock); \
253 ret = __test_and_set_bit_le((nr), (addr)); \
254 spin_unlock(lock); \
255 ret; \
256 })
257
258#define ext2_clear_bit_atomic(lock, nr, addr) \
259 ({ \
260 int ret; \
261 spin_lock(lock); \
262 ret = __test_and_clear_bit_le((nr), (addr)); \
263 spin_unlock(lock); \
264 ret; \
265 })
266 250
267static inline int test_bit_le(int nr, const volatile void *addr) 251static inline int test_bit_le(int nr, const volatile void *addr)
268{ 252{
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index cf20f3097af..353bf754a97 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -144,8 +144,10 @@ static inline void io_insl(unsigned int addr, void *buf, int len)
144#define IOMAP_NOCACHE_NONSER 2 144#define IOMAP_NOCACHE_NONSER 2
145#define IOMAP_WRITETHROUGH 3 145#define IOMAP_WRITETHROUGH 3
146 146
147extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag); 147static inline void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
148 148{
149 return (void *) physaddr;
150}
149static inline void *ioremap(unsigned long physaddr, unsigned long size) 151static inline void *ioremap(unsigned long physaddr, unsigned long size)
150{ 152{
151 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); 153 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
@@ -163,7 +165,7 @@ static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size
163 return __ioremap(physaddr, size, IOMAP_FULL_CACHING); 165 return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
164} 166}
165 167
166extern void iounmap(void *addr); 168#define iounmap(addr) do { } while(0)
167 169
168/* 170/*
169 * Convert a physical pointer to a virtual kernel pointer for /dev/mem 171 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c
index 59a69a5c62f..983fed9d469 100644
--- a/arch/m68k/kernel/asm-offsets.c
+++ b/arch/m68k/kernel/asm-offsets.c
@@ -1,5 +1,105 @@
1#ifdef CONFIG_MMU 1/*
2#include "asm-offsets_mm.c" 2 * This program is used to generate definitions needed by
3 * assembly language modules.
4 *
5 * We use the technique used in the OSF Mach kernel code:
6 * generate asm statements containing #defines,
7 * compile this file to assembler, and then extract the
8 * #defines from the assembly-language output.
9 */
10
11#define ASM_OFFSETS_C
12
13#include <linux/stddef.h>
14#include <linux/sched.h>
15#include <linux/kernel_stat.h>
16#include <linux/kbuild.h>
17#include <asm/bootinfo.h>
18#include <asm/irq.h>
19#include <asm/amigahw.h>
20#include <linux/font.h>
21
22int main(void)
23{
24 /* offsets into the task struct */
25 DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
26 DEFINE(TASK_MM, offsetof(struct task_struct, mm));
27 DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
28 DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info));
29
30 /* offsets into the thread struct */
31 DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
32 DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
33 DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
34 DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
35 DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
36 DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
37 DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
38 DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
39 DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
40
41 /* offsets into the thread_info struct */
42 DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
43 DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
44
45 /* offsets into the pt_regs */
46 DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
47 DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
48 DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
49 DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
50 DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
51 DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
52 DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
53 DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
54 DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
55 DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
56 DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
57 DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
58
59 /* bitfields are a bit difficult */
60#ifdef CONFIG_COLDFIRE
61 DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
3#else 62#else
4#include "asm-offsets_no.c" 63 DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
64#endif
65
66 /* offsets into the irq_cpustat_t struct */
67 DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
68
69 /* signal defines */
70 DEFINE(LSIGSEGV, SIGSEGV);
71 DEFINE(LSEGV_MAPERR, SEGV_MAPERR);
72 DEFINE(LSIGTRAP, SIGTRAP);
73 DEFINE(LTRAP_TRACE, TRAP_TRACE);
74
75#ifdef CONFIG_MMU
76 /* offsets into the bi_record struct */
77 DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
78 DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
79 DEFINE(BIR_DATA, offsetof(struct bi_record, data));
80
81 /* offsets into font_desc (drivers/video/console/font.h) */
82 DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
83 DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
84 DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
85 DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
86 DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
87 DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
88
89 /* offsets into the custom struct */
90 DEFINE(CUSTOMBASE, &amiga_custom);
91 DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
92 DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
93 DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
94 DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
95 DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
96 DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
97 DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
98 DEFINE(CIAABASE, &ciaa);
99 DEFINE(CIABBASE, &ciab);
100 DEFINE(C_PRA, offsetof(struct CIA, pra));
101 DEFINE(ZTWOBASE, zTwoBase);
5#endif 102#endif
103
104 return 0;
105}
diff --git a/arch/m68k/kernel/asm-offsets_mm.c b/arch/m68k/kernel/asm-offsets_mm.c
deleted file mode 100644
index 78e59b82ebc..00000000000
--- a/arch/m68k/kernel/asm-offsets_mm.c
+++ /dev/null
@@ -1,100 +0,0 @@
1/*
2 * This program is used to generate definitions needed by
3 * assembly language modules.
4 *
5 * We use the technique used in the OSF Mach kernel code:
6 * generate asm statements containing #defines,
7 * compile this file to assembler, and then extract the
8 * #defines from the assembly-language output.
9 */
10
11#define ASM_OFFSETS_C
12
13#include <linux/stddef.h>
14#include <linux/sched.h>
15#include <linux/kernel_stat.h>
16#include <linux/kbuild.h>
17#include <asm/bootinfo.h>
18#include <asm/irq.h>
19#include <asm/amigahw.h>
20#include <linux/font.h>
21
22int main(void)
23{
24 /* offsets into the task struct */
25 DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
26 DEFINE(TASK_INFO, offsetof(struct task_struct, thread.info));
27 DEFINE(TASK_MM, offsetof(struct task_struct, mm));
28#ifdef CONFIG_MMU
29 DEFINE(TASK_TINFO, offsetof(struct task_struct, thread.info));
30#endif
31
32 /* offsets into the thread struct */
33 DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
34 DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
35 DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
36 DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
37 DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
38 DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
39 DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
40 DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
41 DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
42
43 /* offsets into the thread_info struct */
44 DEFINE(TINFO_PREEMPT, offsetof(struct thread_info, preempt_count));
45 DEFINE(TINFO_FLAGS, offsetof(struct thread_info, flags));
46
47 /* offsets into the pt_regs */
48 DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
49 DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
50 DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
51 DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
52 DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
53 DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
54 DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
55 DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
56 DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
57 DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
58 DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
59 DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
60 /* bitfields are a bit difficult */
61 DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
62
63 /* offsets into the irq_cpustat_t struct */
64 DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
65
66 /* offsets into the bi_record struct */
67 DEFINE(BIR_TAG, offsetof(struct bi_record, tag));
68 DEFINE(BIR_SIZE, offsetof(struct bi_record, size));
69 DEFINE(BIR_DATA, offsetof(struct bi_record, data));
70
71 /* offsets into font_desc (drivers/video/console/font.h) */
72 DEFINE(FONT_DESC_IDX, offsetof(struct font_desc, idx));
73 DEFINE(FONT_DESC_NAME, offsetof(struct font_desc, name));
74 DEFINE(FONT_DESC_WIDTH, offsetof(struct font_desc, width));
75 DEFINE(FONT_DESC_HEIGHT, offsetof(struct font_desc, height));
76 DEFINE(FONT_DESC_DATA, offsetof(struct font_desc, data));
77 DEFINE(FONT_DESC_PREF, offsetof(struct font_desc, pref));
78
79 /* signal defines */
80 DEFINE(LSIGSEGV, SIGSEGV);
81 DEFINE(LSEGV_MAPERR, SEGV_MAPERR);
82 DEFINE(LSIGTRAP, SIGTRAP);
83 DEFINE(LTRAP_TRACE, TRAP_TRACE);
84
85 /* offsets into the custom struct */
86 DEFINE(CUSTOMBASE, &amiga_custom);
87 DEFINE(C_INTENAR, offsetof(struct CUSTOM, intenar));
88 DEFINE(C_INTREQR, offsetof(struct CUSTOM, intreqr));
89 DEFINE(C_INTENA, offsetof(struct CUSTOM, intena));
90 DEFINE(C_INTREQ, offsetof(struct CUSTOM, intreq));
91 DEFINE(C_SERDATR, offsetof(struct CUSTOM, serdatr));
92 DEFINE(C_SERDAT, offsetof(struct CUSTOM, serdat));
93 DEFINE(C_SERPER, offsetof(struct CUSTOM, serper));
94 DEFINE(CIAABASE, &ciaa);
95 DEFINE(CIABBASE, &ciab);
96 DEFINE(C_PRA, offsetof(struct CIA, pra));
97 DEFINE(ZTWOBASE, zTwoBase);
98
99 return 0;
100}
diff --git a/arch/m68k/kernel/asm-offsets_no.c b/arch/m68k/kernel/asm-offsets_no.c
deleted file mode 100644
index ffe02f41ad4..00000000000
--- a/arch/m68k/kernel/asm-offsets_no.c
+++ /dev/null
@@ -1,76 +0,0 @@
1/*
2 * This program is used to generate definitions needed by
3 * assembly language modules.
4 *
5 * We use the technique used in the OSF Mach kernel code:
6 * generate asm statements containing #defines,
7 * compile this file to assembler, and then extract the
8 * #defines from the assembly-language output.
9 */
10
11#include <linux/stddef.h>
12#include <linux/sched.h>
13#include <linux/kernel_stat.h>
14#include <linux/ptrace.h>
15#include <linux/hardirq.h>
16#include <linux/kbuild.h>
17#include <asm/bootinfo.h>
18#include <asm/irq.h>
19#include <asm/thread_info.h>
20
21int main(void)
22{
23 /* offsets into the task struct */
24 DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
25 DEFINE(TASK_MM, offsetof(struct task_struct, mm));
26
27 /* offsets into the irq_cpustat_t struct */
28 DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
29
30 /* offsets into the thread struct */
31 DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
32 DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
33 DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
34 DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
35 DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
36 DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
37 DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
38 DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
39 DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
40
41 /* offsets into the pt_regs */
42 DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0));
43 DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0));
44 DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1));
45 DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2));
46 DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3));
47 DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4));
48 DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5));
49 DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0));
50 DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1));
51 DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2));
52 DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc));
53 DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr));
54
55#ifdef CONFIG_COLDFIRE
56 /* bitfields are a bit difficult */
57 DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
58#else
59 /* bitfields are a bit difficult */
60 DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4);
61#endif
62
63 /* signal defines */
64 DEFINE(SIGSEGV, SIGSEGV);
65 DEFINE(SEGV_MAPERR, SEGV_MAPERR);
66 DEFINE(SIGTRAP, SIGTRAP);
67 DEFINE(TRAP_TRACE, TRAP_TRACE);
68
69 DEFINE(PT_PTRACED, PT_PTRACED);
70
71 /* Offsets in thread_info structure */
72 DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
73 DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count));
74
75 return 0;
76}
diff --git a/arch/m68k/kernel/entry_no.S b/arch/m68k/kernel/entry_no.S
index 2783f25e38b..5f0f6b598b5 100644
--- a/arch/m68k/kernel/entry_no.S
+++ b/arch/m68k/kernel/entry_no.S
@@ -24,7 +24,6 @@
24 * linux 2.4 support David McCullough <davidm@snapgear.com> 24 * linux 2.4 support David McCullough <davidm@snapgear.com>
25 */ 25 */
26 26
27#include <linux/sys.h>
28#include <linux/linkage.h> 27#include <linux/linkage.h>
29#include <asm/errno.h> 28#include <asm/errno.h>
30#include <asm/setup.h> 29#include <asm/setup.h>
diff --git a/arch/m68k/kernel/irq.c b/arch/m68k/kernel/irq.c
index 15dbc3e9d20..544b8717d49 100644
--- a/arch/m68k/kernel/irq.c
+++ b/arch/m68k/kernel/irq.c
@@ -28,31 +28,3 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
28 28
29 set_irq_regs(oldregs); 29 set_irq_regs(oldregs);
30} 30}
31
32int show_interrupts(struct seq_file *p, void *v)
33{
34 struct irqaction *ap;
35 int irq = *((loff_t *) v);
36
37 if (irq == 0)
38 seq_puts(p, " CPU0\n");
39
40 if (irq < NR_IRQS) {
41 struct irq_desc *desc = irq_to_desc(irq);
42
43 ap = desc->action;
44 if (ap) {
45 seq_printf(p, "%3d: ", irq);
46 seq_printf(p, "%10u ", kstat_irqs(irq));
47 seq_printf(p, "%14s ", irq_desc_get_chip(desc)->name);
48
49 seq_printf(p, "%s", ap->name);
50 for (ap = ap->next; ap; ap = ap->next)
51 seq_printf(p, ", %s", ap->name);
52 seq_putc(p, '\n');
53 }
54 }
55
56 return 0;
57}
58
diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c
index 4752c28ce0a..33f82769547 100644
--- a/arch/m68k/kernel/m68k_ksyms.c
+++ b/arch/m68k/kernel/m68k_ksyms.c
@@ -1,5 +1,33 @@
1#ifdef CONFIG_MMU 1#include <linux/module.h>
2#include "m68k_ksyms_mm.c" 2
3#else 3asmlinkage long long __ashldi3 (long long, int);
4#include "m68k_ksyms_no.c" 4asmlinkage long long __ashrdi3 (long long, int);
5asmlinkage long long __lshrdi3 (long long, int);
6asmlinkage long long __muldi3 (long long, long long);
7
8/* The following are special because they're not called
9 explicitly (the C compiler generates them). Fortunately,
10 their interface isn't gonna change any time soon now, so
11 it's OK to leave it out of version control. */
12EXPORT_SYMBOL(__ashldi3);
13EXPORT_SYMBOL(__ashrdi3);
14EXPORT_SYMBOL(__lshrdi3);
15EXPORT_SYMBOL(__muldi3);
16
17#if !defined(__mc68020__) && !defined(__mc68030__) && \
18 !defined(__mc68040__) && !defined(__mc68060__) && !defined(__mcpu32__)
19/*
20 * Simpler 68k and ColdFire parts also need a few other gcc functions.
21 */
22extern long long __divsi3(long long, long long);
23extern long long __modsi3(long long, long long);
24extern long long __mulsi3(long long, long long);
25extern long long __udivsi3(long long, long long);
26extern long long __umodsi3(long long, long long);
27
28EXPORT_SYMBOL(__divsi3);
29EXPORT_SYMBOL(__modsi3);
30EXPORT_SYMBOL(__mulsi3);
31EXPORT_SYMBOL(__udivsi3);
32EXPORT_SYMBOL(__umodsi3);
5#endif 33#endif
diff --git a/arch/m68k/kernel/m68k_ksyms_mm.c b/arch/m68k/kernel/m68k_ksyms_mm.c
deleted file mode 100644
index d900e77e536..00000000000
--- a/arch/m68k/kernel/m68k_ksyms_mm.c
+++ /dev/null
@@ -1,16 +0,0 @@
1#include <linux/module.h>
2
3asmlinkage long long __ashldi3 (long long, int);
4asmlinkage long long __ashrdi3 (long long, int);
5asmlinkage long long __lshrdi3 (long long, int);
6asmlinkage long long __muldi3 (long long, long long);
7
8/* The following are special because they're not called
9 explicitly (the C compiler generates them). Fortunately,
10 their interface isn't gonna change any time soon now, so
11 it's OK to leave it out of version control. */
12EXPORT_SYMBOL(__ashldi3);
13EXPORT_SYMBOL(__ashrdi3);
14EXPORT_SYMBOL(__lshrdi3);
15EXPORT_SYMBOL(__muldi3);
16
diff --git a/arch/m68k/kernel/m68k_ksyms_no.c b/arch/m68k/kernel/m68k_ksyms_no.c
deleted file mode 100644
index 39fe0a7aec3..00000000000
--- a/arch/m68k/kernel/m68k_ksyms_no.c
+++ /dev/null
@@ -1,78 +0,0 @@
1#include <linux/module.h>
2#include <linux/linkage.h>
3#include <linux/sched.h>
4#include <linux/string.h>
5#include <linux/mm.h>
6#include <linux/user.h>
7#include <linux/elfcore.h>
8#include <linux/in6.h>
9#include <linux/interrupt.h>
10
11#include <asm/setup.h>
12#include <asm/machdep.h>
13#include <asm/pgalloc.h>
14#include <asm/irq.h>
15#include <asm/io.h>
16#include <asm/checksum.h>
17#include <asm/current.h>
18
19extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
20
21/* platform dependent support */
22
23EXPORT_SYMBOL(__ioremap);
24EXPORT_SYMBOL(iounmap);
25EXPORT_SYMBOL(dump_fpu);
26
27EXPORT_SYMBOL(ip_fast_csum);
28
29EXPORT_SYMBOL(kernel_thread);
30
31/* Networking helper routines. */
32EXPORT_SYMBOL(csum_partial_copy_nocheck);
33
34/* The following are special because they're not called
35 explicitly (the C compiler generates them). Fortunately,
36 their interface isn't gonna change any time soon now, so
37 it's OK to leave it out of version control. */
38EXPORT_SYMBOL(memcpy);
39EXPORT_SYMBOL(memset);
40
41/*
42 * libgcc functions - functions that are used internally by the
43 * compiler... (prototypes are not correct though, but that
44 * doesn't really matter since they're not versioned).
45 */
46extern void __ashldi3(void);
47extern void __ashrdi3(void);
48extern void __divsi3(void);
49extern void __lshrdi3(void);
50extern void __modsi3(void);
51extern void __muldi3(void);
52extern void __mulsi3(void);
53extern void __udivsi3(void);
54extern void __umodsi3(void);
55
56 /* gcc lib functions */
57EXPORT_SYMBOL(__ashldi3);
58EXPORT_SYMBOL(__ashrdi3);
59EXPORT_SYMBOL(__divsi3);
60EXPORT_SYMBOL(__lshrdi3);
61EXPORT_SYMBOL(__modsi3);
62EXPORT_SYMBOL(__muldi3);
63EXPORT_SYMBOL(__mulsi3);
64EXPORT_SYMBOL(__udivsi3);
65EXPORT_SYMBOL(__umodsi3);
66
67#ifdef CONFIG_COLDFIRE
68extern unsigned int *dma_device_address;
69extern unsigned long dma_base_addr, _ramend;
70EXPORT_SYMBOL(dma_base_addr);
71EXPORT_SYMBOL(dma_device_address);
72EXPORT_SYMBOL(_ramend);
73
74extern asmlinkage void trap(void);
75extern void *_ramvec;
76EXPORT_SYMBOL(trap);
77EXPORT_SYMBOL(_ramvec);
78#endif /* CONFIG_COLDFIRE */
diff --git a/arch/m68k/kernel/process_no.c b/arch/m68k/kernel/process_no.c
index e2a63af5d51..9b86ad11c68 100644
--- a/arch/m68k/kernel/process_no.c
+++ b/arch/m68k/kernel/process_no.c
@@ -151,6 +151,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
151 set_fs(fs); 151 set_fs(fs);
152 return retval; 152 return retval;
153} 153}
154EXPORT_SYMBOL(kernel_thread);
154 155
155void flush_thread(void) 156void flush_thread(void)
156{ 157{
@@ -283,6 +284,7 @@ int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu)
283#endif 284#endif
284 return 1; 285 return 1;
285} 286}
287EXPORT_SYMBOL(dump_fpu);
286 288
287/* 289/*
288 * Generic dumping code. Used for panic and debug. 290 * Generic dumping code. Used for panic and debug.
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 63013df3358..8623f8dc16f 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -1,5 +1,580 @@
1/*
2 * linux/arch/m68k/kernel/sys_m68k.c
3 *
4 * This file contains various random system calls that
5 * have a non-standard calling sequence on the Linux/m68k
6 * platform.
7 */
8
9#include <linux/capability.h>
10#include <linux/errno.h>
11#include <linux/sched.h>
12#include <linux/mm.h>
13#include <linux/fs.h>
14#include <linux/smp.h>
15#include <linux/sem.h>
16#include <linux/msg.h>
17#include <linux/shm.h>
18#include <linux/stat.h>
19#include <linux/syscalls.h>
20#include <linux/mman.h>
21#include <linux/file.h>
22#include <linux/ipc.h>
23
24#include <asm/setup.h>
25#include <asm/uaccess.h>
26#include <asm/cachectl.h>
27#include <asm/traps.h>
28#include <asm/page.h>
29#include <asm/unistd.h>
30#include <asm/cacheflush.h>
31
1#ifdef CONFIG_MMU 32#ifdef CONFIG_MMU
2#include "sys_m68k_mm.c" 33
34#include <asm/tlb.h>
35
36asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
37 unsigned long error_code);
38
39asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
40 unsigned long prot, unsigned long flags,
41 unsigned long fd, unsigned long pgoff)
42{
43 /*
44 * This is wrong for sun3 - there PAGE_SIZE is 8Kb,
45 * so we need to shift the argument down by 1; m68k mmap64(3)
46 * (in libc) expects the last argument of mmap2 in 4Kb units.
47 */
48 return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
49}
50
51/* Convert virtual (user) address VADDR to physical address PADDR */
52#define virt_to_phys_040(vaddr) \
53({ \
54 unsigned long _mmusr, _paddr; \
55 \
56 __asm__ __volatile__ (".chip 68040\n\t" \
57 "ptestr (%1)\n\t" \
58 "movec %%mmusr,%0\n\t" \
59 ".chip 68k" \
60 : "=r" (_mmusr) \
61 : "a" (vaddr)); \
62 _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \
63 _paddr; \
64})
65
66static inline int
67cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len)
68{
69 unsigned long paddr, i;
70
71 switch (scope)
72 {
73 case FLUSH_SCOPE_ALL:
74 switch (cache)
75 {
76 case FLUSH_CACHE_DATA:
77 /* This nop is needed for some broken versions of the 68040. */
78 __asm__ __volatile__ ("nop\n\t"
79 ".chip 68040\n\t"
80 "cpusha %dc\n\t"
81 ".chip 68k");
82 break;
83 case FLUSH_CACHE_INSN:
84 __asm__ __volatile__ ("nop\n\t"
85 ".chip 68040\n\t"
86 "cpusha %ic\n\t"
87 ".chip 68k");
88 break;
89 default:
90 case FLUSH_CACHE_BOTH:
91 __asm__ __volatile__ ("nop\n\t"
92 ".chip 68040\n\t"
93 "cpusha %bc\n\t"
94 ".chip 68k");
95 break;
96 }
97 break;
98
99 case FLUSH_SCOPE_LINE:
100 /* Find the physical address of the first mapped page in the
101 address range. */
102 if ((paddr = virt_to_phys_040(addr))) {
103 paddr += addr & ~(PAGE_MASK | 15);
104 len = (len + (addr & 15) + 15) >> 4;
105 } else {
106 unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
107
108 if (len <= tmp)
109 return 0;
110 addr += tmp;
111 len -= tmp;
112 tmp = PAGE_SIZE;
113 for (;;)
114 {
115 if ((paddr = virt_to_phys_040(addr)))
116 break;
117 if (len <= tmp)
118 return 0;
119 addr += tmp;
120 len -= tmp;
121 }
122 len = (len + 15) >> 4;
123 }
124 i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
125 while (len--)
126 {
127 switch (cache)
128 {
129 case FLUSH_CACHE_DATA:
130 __asm__ __volatile__ ("nop\n\t"
131 ".chip 68040\n\t"
132 "cpushl %%dc,(%0)\n\t"
133 ".chip 68k"
134 : : "a" (paddr));
135 break;
136 case FLUSH_CACHE_INSN:
137 __asm__ __volatile__ ("nop\n\t"
138 ".chip 68040\n\t"
139 "cpushl %%ic,(%0)\n\t"
140 ".chip 68k"
141 : : "a" (paddr));
142 break;
143 default:
144 case FLUSH_CACHE_BOTH:
145 __asm__ __volatile__ ("nop\n\t"
146 ".chip 68040\n\t"
147 "cpushl %%bc,(%0)\n\t"
148 ".chip 68k"
149 : : "a" (paddr));
150 break;
151 }
152 if (!--i && len)
153 {
154 /*
155 * No need to page align here since it is done by
156 * virt_to_phys_040().
157 */
158 addr += PAGE_SIZE;
159 i = PAGE_SIZE / 16;
160 /* Recompute physical address when crossing a page
161 boundary. */
162 for (;;)
163 {
164 if ((paddr = virt_to_phys_040(addr)))
165 break;
166 if (len <= i)
167 return 0;
168 len -= i;
169 addr += PAGE_SIZE;
170 }
171 }
172 else
173 paddr += 16;
174 }
175 break;
176
177 default:
178 case FLUSH_SCOPE_PAGE:
179 len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
180 for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
181 {
182 if (!(paddr = virt_to_phys_040(addr)))
183 continue;
184 switch (cache)
185 {
186 case FLUSH_CACHE_DATA:
187 __asm__ __volatile__ ("nop\n\t"
188 ".chip 68040\n\t"
189 "cpushp %%dc,(%0)\n\t"
190 ".chip 68k"
191 : : "a" (paddr));
192 break;
193 case FLUSH_CACHE_INSN:
194 __asm__ __volatile__ ("nop\n\t"
195 ".chip 68040\n\t"
196 "cpushp %%ic,(%0)\n\t"
197 ".chip 68k"
198 : : "a" (paddr));
199 break;
200 default:
201 case FLUSH_CACHE_BOTH:
202 __asm__ __volatile__ ("nop\n\t"
203 ".chip 68040\n\t"
204 "cpushp %%bc,(%0)\n\t"
205 ".chip 68k"
206 : : "a" (paddr));
207 break;
208 }
209 }
210 break;
211 }
212 return 0;
213}
214
215#define virt_to_phys_060(vaddr) \
216({ \
217 unsigned long paddr; \
218 __asm__ __volatile__ (".chip 68060\n\t" \
219 "plpar (%0)\n\t" \
220 ".chip 68k" \
221 : "=a" (paddr) \
222 : "0" (vaddr)); \
223 (paddr); /* XXX */ \
224})
225
226static inline int
227cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len)
228{
229 unsigned long paddr, i;
230
231 /*
232 * 68060 manual says:
233 * cpush %dc : flush DC, remains valid (with our %cacr setup)
234 * cpush %ic : invalidate IC
235 * cpush %bc : flush DC + invalidate IC
236 */
237 switch (scope)
238 {
239 case FLUSH_SCOPE_ALL:
240 switch (cache)
241 {
242 case FLUSH_CACHE_DATA:
243 __asm__ __volatile__ (".chip 68060\n\t"
244 "cpusha %dc\n\t"
245 ".chip 68k");
246 break;
247 case FLUSH_CACHE_INSN:
248 __asm__ __volatile__ (".chip 68060\n\t"
249 "cpusha %ic\n\t"
250 ".chip 68k");
251 break;
252 default:
253 case FLUSH_CACHE_BOTH:
254 __asm__ __volatile__ (".chip 68060\n\t"
255 "cpusha %bc\n\t"
256 ".chip 68k");
257 break;
258 }
259 break;
260
261 case FLUSH_SCOPE_LINE:
262 /* Find the physical address of the first mapped page in the
263 address range. */
264 len += addr & 15;
265 addr &= -16;
266 if (!(paddr = virt_to_phys_060(addr))) {
267 unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
268
269 if (len <= tmp)
270 return 0;
271 addr += tmp;
272 len -= tmp;
273 tmp = PAGE_SIZE;
274 for (;;)
275 {
276 if ((paddr = virt_to_phys_060(addr)))
277 break;
278 if (len <= tmp)
279 return 0;
280 addr += tmp;
281 len -= tmp;
282 }
283 }
284 len = (len + 15) >> 4;
285 i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
286 while (len--)
287 {
288 switch (cache)
289 {
290 case FLUSH_CACHE_DATA:
291 __asm__ __volatile__ (".chip 68060\n\t"
292 "cpushl %%dc,(%0)\n\t"
293 ".chip 68k"
294 : : "a" (paddr));
295 break;
296 case FLUSH_CACHE_INSN:
297 __asm__ __volatile__ (".chip 68060\n\t"
298 "cpushl %%ic,(%0)\n\t"
299 ".chip 68k"
300 : : "a" (paddr));
301 break;
302 default:
303 case FLUSH_CACHE_BOTH:
304 __asm__ __volatile__ (".chip 68060\n\t"
305 "cpushl %%bc,(%0)\n\t"
306 ".chip 68k"
307 : : "a" (paddr));
308 break;
309 }
310 if (!--i && len)
311 {
312
313 /*
314 * We just want to jump to the first cache line
315 * in the next page.
316 */
317 addr += PAGE_SIZE;
318 addr &= PAGE_MASK;
319
320 i = PAGE_SIZE / 16;
321 /* Recompute physical address when crossing a page
322 boundary. */
323 for (;;)
324 {
325 if ((paddr = virt_to_phys_060(addr)))
326 break;
327 if (len <= i)
328 return 0;
329 len -= i;
330 addr += PAGE_SIZE;
331 }
332 }
333 else
334 paddr += 16;
335 }
336 break;
337
338 default:
339 case FLUSH_SCOPE_PAGE:
340 len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
341 addr &= PAGE_MASK; /* Workaround for bug in some
342 revisions of the 68060 */
343 for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
344 {
345 if (!(paddr = virt_to_phys_060(addr)))
346 continue;
347 switch (cache)
348 {
349 case FLUSH_CACHE_DATA:
350 __asm__ __volatile__ (".chip 68060\n\t"
351 "cpushp %%dc,(%0)\n\t"
352 ".chip 68k"
353 : : "a" (paddr));
354 break;
355 case FLUSH_CACHE_INSN:
356 __asm__ __volatile__ (".chip 68060\n\t"
357 "cpushp %%ic,(%0)\n\t"
358 ".chip 68k"
359 : : "a" (paddr));
360 break;
361 default:
362 case FLUSH_CACHE_BOTH:
363 __asm__ __volatile__ (".chip 68060\n\t"
364 "cpushp %%bc,(%0)\n\t"
365 ".chip 68k"
366 : : "a" (paddr));
367 break;
368 }
369 }
370 break;
371 }
372 return 0;
373}
374
375/* sys_cacheflush -- flush (part of) the processor cache. */
376asmlinkage int
377sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
378{
379 struct vm_area_struct *vma;
380 int ret = -EINVAL;
381
382 if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL ||
383 cache & ~FLUSH_CACHE_BOTH)
384 goto out;
385
386 if (scope == FLUSH_SCOPE_ALL) {
387 /* Only the superuser may explicitly flush the whole cache. */
388 ret = -EPERM;
389 if (!capable(CAP_SYS_ADMIN))
390 goto out;
391 } else {
392 /*
393 * Verify that the specified address region actually belongs
394 * to this process.
395 */
396 vma = find_vma (current->mm, addr);
397 ret = -EINVAL;
398 /* Check for overflow. */
399 if (addr + len < addr)
400 goto out;
401 if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end)
402 goto out;
403 }
404
405 if (CPU_IS_020_OR_030) {
406 if (scope == FLUSH_SCOPE_LINE && len < 256) {
407 unsigned long cacr;
408 __asm__ ("movec %%cacr, %0" : "=r" (cacr));
409 if (cache & FLUSH_CACHE_INSN)
410 cacr |= 4;
411 if (cache & FLUSH_CACHE_DATA)
412 cacr |= 0x400;
413 len >>= 2;
414 while (len--) {
415 __asm__ __volatile__ ("movec %1, %%caar\n\t"
416 "movec %0, %%cacr"
417 : /* no outputs */
418 : "r" (cacr), "r" (addr));
419 addr += 4;
420 }
421 } else {
422 /* Flush the whole cache, even if page granularity requested. */
423 unsigned long cacr;
424 __asm__ ("movec %%cacr, %0" : "=r" (cacr));
425 if (cache & FLUSH_CACHE_INSN)
426 cacr |= 8;
427 if (cache & FLUSH_CACHE_DATA)
428 cacr |= 0x800;
429 __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr));
430 }
431 ret = 0;
432 goto out;
433 } else {
434 /*
435 * 040 or 060: don't blindly trust 'scope', someone could
436 * try to flush a few megs of memory.
437 */
438
439 if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE)
440 scope=FLUSH_SCOPE_PAGE;
441 if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL)
442 scope=FLUSH_SCOPE_ALL;
443 if (CPU_IS_040) {
444 ret = cache_flush_040 (addr, scope, cache, len);
445 } else if (CPU_IS_060) {
446 ret = cache_flush_060 (addr, scope, cache, len);
447 }
448 }
449out:
450 return ret;
451}
452
453/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
454 D1 (newval). */
455asmlinkage int
456sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
457 unsigned long __user * mem)
458{
459 /* This was borrowed from ARM's implementation. */
460 for (;;) {
461 struct mm_struct *mm = current->mm;
462 pgd_t *pgd;
463 pmd_t *pmd;
464 pte_t *pte;
465 spinlock_t *ptl;
466 unsigned long mem_value;
467
468 down_read(&mm->mmap_sem);
469 pgd = pgd_offset(mm, (unsigned long)mem);
470 if (!pgd_present(*pgd))
471 goto bad_access;
472 pmd = pmd_offset(pgd, (unsigned long)mem);
473 if (!pmd_present(*pmd))
474 goto bad_access;
475 pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl);
476 if (!pte_present(*pte) || !pte_dirty(*pte)
477 || !pte_write(*pte)) {
478 pte_unmap_unlock(pte, ptl);
479 goto bad_access;
480 }
481
482 mem_value = *mem;
483 if (mem_value == oldval)
484 *mem = newval;
485
486 pte_unmap_unlock(pte, ptl);
487 up_read(&mm->mmap_sem);
488 return mem_value;
489
490 bad_access:
491 up_read(&mm->mmap_sem);
492 /* This is not necessarily a bad access, we can get here if
493 a memory we're trying to write to should be copied-on-write.
494 Make the kernel do the necessary page stuff, then re-iterate.
495 Simulate a write access fault to do that. */
496 {
497 /* The first argument of the function corresponds to
498 D1, which is the first field of struct pt_regs. */
499 struct pt_regs *fp = (struct pt_regs *)&newval;
500
501 /* '3' is an RMW flag. */
502 if (do_page_fault(fp, (unsigned long)mem, 3))
503 /* If the do_page_fault() failed, we don't
504 have anything meaningful to return.
505 There should be a SIGSEGV pending for
506 the process. */
507 return 0xdeadbeef;
508 }
509 }
510}
511
3#else 512#else
4#include "sys_m68k_no.c" 513
5#endif 514/* sys_cacheflush -- flush (part of) the processor cache. */
515asmlinkage int
516sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
517{
518 flush_cache_all();
519 return 0;
520}
521
522/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
523 D1 (newval). */
524asmlinkage int
525sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
526 unsigned long __user * mem)
527{
528 struct mm_struct *mm = current->mm;
529 unsigned long mem_value;
530
531 down_read(&mm->mmap_sem);
532
533 mem_value = *mem;
534 if (mem_value == oldval)
535 *mem = newval;
536
537 up_read(&mm->mmap_sem);
538 return mem_value;
539}
540
541#endif /* CONFIG_MMU */
542
543asmlinkage int sys_getpagesize(void)
544{
545 return PAGE_SIZE;
546}
547
548/*
549 * Do a system call from kernel instead of calling sys_execve so we
550 * end up with proper pt_regs.
551 */
552int kernel_execve(const char *filename,
553 const char *const argv[],
554 const char *const envp[])
555{
556 register long __res asm ("%d0") = __NR_execve;
557 register long __a asm ("%d1") = (long)(filename);
558 register long __b asm ("%d2") = (long)(argv);
559 register long __c asm ("%d3") = (long)(envp);
560 asm volatile ("trap #0" : "+d" (__res)
561 : "d" (__a), "d" (__b), "d" (__c));
562 return __res;
563}
564
565asmlinkage unsigned long sys_get_thread_area(void)
566{
567 return current_thread_info()->tp_value;
568}
569
570asmlinkage int sys_set_thread_area(unsigned long tp)
571{
572 current_thread_info()->tp_value = tp;
573 return 0;
574}
575
576asmlinkage int sys_atomic_barrier(void)
577{
578 /* no code needed for uniprocs */
579 return 0;
580}
diff --git a/arch/m68k/kernel/sys_m68k_mm.c b/arch/m68k/kernel/sys_m68k_mm.c
deleted file mode 100644
index 3db2e7f902a..00000000000
--- a/arch/m68k/kernel/sys_m68k_mm.c
+++ /dev/null
@@ -1,546 +0,0 @@
1/*
2 * linux/arch/m68k/kernel/sys_m68k.c
3 *
4 * This file contains various random system calls that
5 * have a non-standard calling sequence on the Linux/m68k
6 * platform.
7 */
8
9#include <linux/capability.h>
10#include <linux/errno.h>
11#include <linux/sched.h>
12#include <linux/mm.h>
13#include <linux/fs.h>
14#include <linux/smp.h>
15#include <linux/sem.h>
16#include <linux/msg.h>
17#include <linux/shm.h>
18#include <linux/stat.h>
19#include <linux/syscalls.h>
20#include <linux/mman.h>
21#include <linux/file.h>
22#include <linux/ipc.h>
23
24#include <asm/setup.h>
25#include <asm/uaccess.h>
26#include <asm/cachectl.h>
27#include <asm/traps.h>
28#include <asm/page.h>
29#include <asm/unistd.h>
30#include <linux/elf.h>
31#include <asm/tlb.h>
32
33asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
34 unsigned long error_code);
35
36asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
37 unsigned long prot, unsigned long flags,
38 unsigned long fd, unsigned long pgoff)
39{
40 /*
41 * This is wrong for sun3 - there PAGE_SIZE is 8Kb,
42 * so we need to shift the argument down by 1; m68k mmap64(3)
43 * (in libc) expects the last argument of mmap2 in 4Kb units.
44 */
45 return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff);
46}
47
48/* Convert virtual (user) address VADDR to physical address PADDR */
49#define virt_to_phys_040(vaddr) \
50({ \
51 unsigned long _mmusr, _paddr; \
52 \
53 __asm__ __volatile__ (".chip 68040\n\t" \
54 "ptestr (%1)\n\t" \
55 "movec %%mmusr,%0\n\t" \
56 ".chip 68k" \
57 : "=r" (_mmusr) \
58 : "a" (vaddr)); \
59 _paddr = (_mmusr & MMU_R_040) ? (_mmusr & PAGE_MASK) : 0; \
60 _paddr; \
61})
62
63static inline int
64cache_flush_040 (unsigned long addr, int scope, int cache, unsigned long len)
65{
66 unsigned long paddr, i;
67
68 switch (scope)
69 {
70 case FLUSH_SCOPE_ALL:
71 switch (cache)
72 {
73 case FLUSH_CACHE_DATA:
74 /* This nop is needed for some broken versions of the 68040. */
75 __asm__ __volatile__ ("nop\n\t"
76 ".chip 68040\n\t"
77 "cpusha %dc\n\t"
78 ".chip 68k");
79 break;
80 case FLUSH_CACHE_INSN:
81 __asm__ __volatile__ ("nop\n\t"
82 ".chip 68040\n\t"
83 "cpusha %ic\n\t"
84 ".chip 68k");
85 break;
86 default:
87 case FLUSH_CACHE_BOTH:
88 __asm__ __volatile__ ("nop\n\t"
89 ".chip 68040\n\t"
90 "cpusha %bc\n\t"
91 ".chip 68k");
92 break;
93 }
94 break;
95
96 case FLUSH_SCOPE_LINE:
97 /* Find the physical address of the first mapped page in the
98 address range. */
99 if ((paddr = virt_to_phys_040(addr))) {
100 paddr += addr & ~(PAGE_MASK | 15);
101 len = (len + (addr & 15) + 15) >> 4;
102 } else {
103 unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
104
105 if (len <= tmp)
106 return 0;
107 addr += tmp;
108 len -= tmp;
109 tmp = PAGE_SIZE;
110 for (;;)
111 {
112 if ((paddr = virt_to_phys_040(addr)))
113 break;
114 if (len <= tmp)
115 return 0;
116 addr += tmp;
117 len -= tmp;
118 }
119 len = (len + 15) >> 4;
120 }
121 i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
122 while (len--)
123 {
124 switch (cache)
125 {
126 case FLUSH_CACHE_DATA:
127 __asm__ __volatile__ ("nop\n\t"
128 ".chip 68040\n\t"
129 "cpushl %%dc,(%0)\n\t"
130 ".chip 68k"
131 : : "a" (paddr));
132 break;
133 case FLUSH_CACHE_INSN:
134 __asm__ __volatile__ ("nop\n\t"
135 ".chip 68040\n\t"
136 "cpushl %%ic,(%0)\n\t"
137 ".chip 68k"
138 : : "a" (paddr));
139 break;
140 default:
141 case FLUSH_CACHE_BOTH:
142 __asm__ __volatile__ ("nop\n\t"
143 ".chip 68040\n\t"
144 "cpushl %%bc,(%0)\n\t"
145 ".chip 68k"
146 : : "a" (paddr));
147 break;
148 }
149 if (!--i && len)
150 {
151 /*
152 * No need to page align here since it is done by
153 * virt_to_phys_040().
154 */
155 addr += PAGE_SIZE;
156 i = PAGE_SIZE / 16;
157 /* Recompute physical address when crossing a page
158 boundary. */
159 for (;;)
160 {
161 if ((paddr = virt_to_phys_040(addr)))
162 break;
163 if (len <= i)
164 return 0;
165 len -= i;
166 addr += PAGE_SIZE;
167 }
168 }
169 else
170 paddr += 16;
171 }
172 break;
173
174 default:
175 case FLUSH_SCOPE_PAGE:
176 len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
177 for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
178 {
179 if (!(paddr = virt_to_phys_040(addr)))
180 continue;
181 switch (cache)
182 {
183 case FLUSH_CACHE_DATA:
184 __asm__ __volatile__ ("nop\n\t"
185 ".chip 68040\n\t"
186 "cpushp %%dc,(%0)\n\t"
187 ".chip 68k"
188 : : "a" (paddr));
189 break;
190 case FLUSH_CACHE_INSN:
191 __asm__ __volatile__ ("nop\n\t"
192 ".chip 68040\n\t"
193 "cpushp %%ic,(%0)\n\t"
194 ".chip 68k"
195 : : "a" (paddr));
196 break;
197 default:
198 case FLUSH_CACHE_BOTH:
199 __asm__ __volatile__ ("nop\n\t"
200 ".chip 68040\n\t"
201 "cpushp %%bc,(%0)\n\t"
202 ".chip 68k"
203 : : "a" (paddr));
204 break;
205 }
206 }
207 break;
208 }
209 return 0;
210}
211
212#define virt_to_phys_060(vaddr) \
213({ \
214 unsigned long paddr; \
215 __asm__ __volatile__ (".chip 68060\n\t" \
216 "plpar (%0)\n\t" \
217 ".chip 68k" \
218 : "=a" (paddr) \
219 : "0" (vaddr)); \
220 (paddr); /* XXX */ \
221})
222
223static inline int
224cache_flush_060 (unsigned long addr, int scope, int cache, unsigned long len)
225{
226 unsigned long paddr, i;
227
228 /*
229 * 68060 manual says:
230 * cpush %dc : flush DC, remains valid (with our %cacr setup)
231 * cpush %ic : invalidate IC
232 * cpush %bc : flush DC + invalidate IC
233 */
234 switch (scope)
235 {
236 case FLUSH_SCOPE_ALL:
237 switch (cache)
238 {
239 case FLUSH_CACHE_DATA:
240 __asm__ __volatile__ (".chip 68060\n\t"
241 "cpusha %dc\n\t"
242 ".chip 68k");
243 break;
244 case FLUSH_CACHE_INSN:
245 __asm__ __volatile__ (".chip 68060\n\t"
246 "cpusha %ic\n\t"
247 ".chip 68k");
248 break;
249 default:
250 case FLUSH_CACHE_BOTH:
251 __asm__ __volatile__ (".chip 68060\n\t"
252 "cpusha %bc\n\t"
253 ".chip 68k");
254 break;
255 }
256 break;
257
258 case FLUSH_SCOPE_LINE:
259 /* Find the physical address of the first mapped page in the
260 address range. */
261 len += addr & 15;
262 addr &= -16;
263 if (!(paddr = virt_to_phys_060(addr))) {
264 unsigned long tmp = PAGE_SIZE - (addr & ~PAGE_MASK);
265
266 if (len <= tmp)
267 return 0;
268 addr += tmp;
269 len -= tmp;
270 tmp = PAGE_SIZE;
271 for (;;)
272 {
273 if ((paddr = virt_to_phys_060(addr)))
274 break;
275 if (len <= tmp)
276 return 0;
277 addr += tmp;
278 len -= tmp;
279 }
280 }
281 len = (len + 15) >> 4;
282 i = (PAGE_SIZE - (paddr & ~PAGE_MASK)) >> 4;
283 while (len--)
284 {
285 switch (cache)
286 {
287 case FLUSH_CACHE_DATA:
288 __asm__ __volatile__ (".chip 68060\n\t"
289 "cpushl %%dc,(%0)\n\t"
290 ".chip 68k"
291 : : "a" (paddr));
292 break;
293 case FLUSH_CACHE_INSN:
294 __asm__ __volatile__ (".chip 68060\n\t"
295 "cpushl %%ic,(%0)\n\t"
296 ".chip 68k"
297 : : "a" (paddr));
298 break;
299 default:
300 case FLUSH_CACHE_BOTH:
301 __asm__ __volatile__ (".chip 68060\n\t"
302 "cpushl %%bc,(%0)\n\t"
303 ".chip 68k"
304 : : "a" (paddr));
305 break;
306 }
307 if (!--i && len)
308 {
309
310 /*
311 * We just want to jump to the first cache line
312 * in the next page.
313 */
314 addr += PAGE_SIZE;
315 addr &= PAGE_MASK;
316
317 i = PAGE_SIZE / 16;
318 /* Recompute physical address when crossing a page
319 boundary. */
320 for (;;)
321 {
322 if ((paddr = virt_to_phys_060(addr)))
323 break;
324 if (len <= i)
325 return 0;
326 len -= i;
327 addr += PAGE_SIZE;
328 }
329 }
330 else
331 paddr += 16;
332 }
333 break;
334
335 default:
336 case FLUSH_SCOPE_PAGE:
337 len += (addr & ~PAGE_MASK) + (PAGE_SIZE - 1);
338 addr &= PAGE_MASK; /* Workaround for bug in some
339 revisions of the 68060 */
340 for (len >>= PAGE_SHIFT; len--; addr += PAGE_SIZE)
341 {
342 if (!(paddr = virt_to_phys_060(addr)))
343 continue;
344 switch (cache)
345 {
346 case FLUSH_CACHE_DATA:
347 __asm__ __volatile__ (".chip 68060\n\t"
348 "cpushp %%dc,(%0)\n\t"
349 ".chip 68k"
350 : : "a" (paddr));
351 break;
352 case FLUSH_CACHE_INSN:
353 __asm__ __volatile__ (".chip 68060\n\t"
354 "cpushp %%ic,(%0)\n\t"
355 ".chip 68k"
356 : : "a" (paddr));
357 break;
358 default:
359 case FLUSH_CACHE_BOTH:
360 __asm__ __volatile__ (".chip 68060\n\t"
361 "cpushp %%bc,(%0)\n\t"
362 ".chip 68k"
363 : : "a" (paddr));
364 break;
365 }
366 }
367 break;
368 }
369 return 0;
370}
371
372/* sys_cacheflush -- flush (part of) the processor cache. */
373asmlinkage int
374sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
375{
376 struct vm_area_struct *vma;
377 int ret = -EINVAL;
378
379 if (scope < FLUSH_SCOPE_LINE || scope > FLUSH_SCOPE_ALL ||
380 cache & ~FLUSH_CACHE_BOTH)
381 goto out;
382
383 if (scope == FLUSH_SCOPE_ALL) {
384 /* Only the superuser may explicitly flush the whole cache. */
385 ret = -EPERM;
386 if (!capable(CAP_SYS_ADMIN))
387 goto out;
388 } else {
389 /*
390 * Verify that the specified address region actually belongs
391 * to this process.
392 */
393 vma = find_vma (current->mm, addr);
394 ret = -EINVAL;
395 /* Check for overflow. */
396 if (addr + len < addr)
397 goto out;
398 if (vma == NULL || addr < vma->vm_start || addr + len > vma->vm_end)
399 goto out;
400 }
401
402 if (CPU_IS_020_OR_030) {
403 if (scope == FLUSH_SCOPE_LINE && len < 256) {
404 unsigned long cacr;
405 __asm__ ("movec %%cacr, %0" : "=r" (cacr));
406 if (cache & FLUSH_CACHE_INSN)
407 cacr |= 4;
408 if (cache & FLUSH_CACHE_DATA)
409 cacr |= 0x400;
410 len >>= 2;
411 while (len--) {
412 __asm__ __volatile__ ("movec %1, %%caar\n\t"
413 "movec %0, %%cacr"
414 : /* no outputs */
415 : "r" (cacr), "r" (addr));
416 addr += 4;
417 }
418 } else {
419 /* Flush the whole cache, even if page granularity requested. */
420 unsigned long cacr;
421 __asm__ ("movec %%cacr, %0" : "=r" (cacr));
422 if (cache & FLUSH_CACHE_INSN)
423 cacr |= 8;
424 if (cache & FLUSH_CACHE_DATA)
425 cacr |= 0x800;
426 __asm__ __volatile__ ("movec %0, %%cacr" : : "r" (cacr));
427 }
428 ret = 0;
429 goto out;
430 } else {
431 /*
432 * 040 or 060: don't blindly trust 'scope', someone could
433 * try to flush a few megs of memory.
434 */
435
436 if (len>=3*PAGE_SIZE && scope<FLUSH_SCOPE_PAGE)
437 scope=FLUSH_SCOPE_PAGE;
438 if (len>=10*PAGE_SIZE && scope<FLUSH_SCOPE_ALL)
439 scope=FLUSH_SCOPE_ALL;
440 if (CPU_IS_040) {
441 ret = cache_flush_040 (addr, scope, cache, len);
442 } else if (CPU_IS_060) {
443 ret = cache_flush_060 (addr, scope, cache, len);
444 }
445 }
446out:
447 return ret;
448}
449
450asmlinkage int sys_getpagesize(void)
451{
452 return PAGE_SIZE;
453}
454
455/*
456 * Do a system call from kernel instead of calling sys_execve so we
457 * end up with proper pt_regs.
458 */
459int kernel_execve(const char *filename,
460 const char *const argv[],
461 const char *const envp[])
462{
463 register long __res asm ("%d0") = __NR_execve;
464 register long __a asm ("%d1") = (long)(filename);
465 register long __b asm ("%d2") = (long)(argv);
466 register long __c asm ("%d3") = (long)(envp);
467 asm volatile ("trap #0" : "+d" (__res)
468 : "d" (__a), "d" (__b), "d" (__c));
469 return __res;
470}
471
472asmlinkage unsigned long sys_get_thread_area(void)
473{
474 return current_thread_info()->tp_value;
475}
476
477asmlinkage int sys_set_thread_area(unsigned long tp)
478{
479 current_thread_info()->tp_value = tp;
480 return 0;
481}
482
483/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
484 D1 (newval). */
485asmlinkage int
486sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
487 unsigned long __user * mem)
488{
489 /* This was borrowed from ARM's implementation. */
490 for (;;) {
491 struct mm_struct *mm = current->mm;
492 pgd_t *pgd;
493 pmd_t *pmd;
494 pte_t *pte;
495 spinlock_t *ptl;
496 unsigned long mem_value;
497
498 down_read(&mm->mmap_sem);
499 pgd = pgd_offset(mm, (unsigned long)mem);
500 if (!pgd_present(*pgd))
501 goto bad_access;
502 pmd = pmd_offset(pgd, (unsigned long)mem);
503 if (!pmd_present(*pmd))
504 goto bad_access;
505 pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl);
506 if (!pte_present(*pte) || !pte_dirty(*pte)
507 || !pte_write(*pte)) {
508 pte_unmap_unlock(pte, ptl);
509 goto bad_access;
510 }
511
512 mem_value = *mem;
513 if (mem_value == oldval)
514 *mem = newval;
515
516 pte_unmap_unlock(pte, ptl);
517 up_read(&mm->mmap_sem);
518 return mem_value;
519
520 bad_access:
521 up_read(&mm->mmap_sem);
522 /* This is not necessarily a bad access, we can get here if
523 a memory we're trying to write to should be copied-on-write.
524 Make the kernel do the necessary page stuff, then re-iterate.
525 Simulate a write access fault to do that. */
526 {
527 /* The first argument of the function corresponds to
528 D1, which is the first field of struct pt_regs. */
529 struct pt_regs *fp = (struct pt_regs *)&newval;
530
531 /* '3' is an RMW flag. */
532 if (do_page_fault(fp, (unsigned long)mem, 3))
533 /* If the do_page_fault() failed, we don't
534 have anything meaningful to return.
535 There should be a SIGSEGV pending for
536 the process. */
537 return 0xdeadbeef;
538 }
539 }
540}
541
542asmlinkage int sys_atomic_barrier(void)
543{
544 /* no code needed for uniprocs */
545 return 0;
546}
diff --git a/arch/m68k/kernel/sys_m68k_no.c b/arch/m68k/kernel/sys_m68k_no.c
deleted file mode 100644
index 68488ae47f0..00000000000
--- a/arch/m68k/kernel/sys_m68k_no.c
+++ /dev/null
@@ -1,94 +0,0 @@
1/*
2 * linux/arch/m68knommu/kernel/sys_m68k.c
3 *
4 * This file contains various random system calls that
5 * have a non-standard calling sequence on the Linux/m68k
6 * platform.
7 */
8
9#include <linux/errno.h>
10#include <linux/sched.h>
11#include <linux/mm.h>
12#include <linux/smp.h>
13#include <linux/sem.h>
14#include <linux/msg.h>
15#include <linux/shm.h>
16#include <linux/stat.h>
17#include <linux/syscalls.h>
18#include <linux/mman.h>
19#include <linux/file.h>
20#include <linux/ipc.h>
21#include <linux/fs.h>
22
23#include <asm/setup.h>
24#include <asm/uaccess.h>
25#include <asm/cachectl.h>
26#include <asm/traps.h>
27#include <asm/cacheflush.h>
28#include <asm/unistd.h>
29
30/* sys_cacheflush -- flush (part of) the processor cache. */
31asmlinkage int
32sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
33{
34 flush_cache_all();
35 return(0);
36}
37
38asmlinkage int sys_getpagesize(void)
39{
40 return PAGE_SIZE;
41}
42
43/*
44 * Do a system call from kernel instead of calling sys_execve so we
45 * end up with proper pt_regs.
46 */
47int kernel_execve(const char *filename,
48 const char *const argv[],
49 const char *const envp[])
50{
51 register long __res asm ("%d0") = __NR_execve;
52 register long __a asm ("%d1") = (long)(filename);
53 register long __b asm ("%d2") = (long)(argv);
54 register long __c asm ("%d3") = (long)(envp);
55 asm volatile ("trap #0" : "+d" (__res)
56 : "d" (__a), "d" (__b), "d" (__c));
57 return __res;
58}
59
60asmlinkage unsigned long sys_get_thread_area(void)
61{
62 return current_thread_info()->tp_value;
63}
64
65asmlinkage int sys_set_thread_area(unsigned long tp)
66{
67 current_thread_info()->tp_value = tp;
68 return 0;
69}
70
71/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
72 D1 (newval). */
73asmlinkage int
74sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
75 unsigned long __user * mem)
76{
77 struct mm_struct *mm = current->mm;
78 unsigned long mem_value;
79
80 down_read(&mm->mmap_sem);
81
82 mem_value = *mem;
83 if (mem_value == oldval)
84 *mem = newval;
85
86 up_read(&mm->mmap_sem);
87 return mem_value;
88}
89
90asmlinkage int sys_atomic_barrier(void)
91{
92 /* no code needed for uniprocs */
93 return 0;
94}
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 5909e392cb1..6f7b09122a0 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -11,7 +11,6 @@
11 * Linux/m68k support by Hamish Macdonald 11 * Linux/m68k support by Hamish Macdonald
12 */ 12 */
13 13
14#include <linux/sys.h>
15#include <linux/linkage.h> 14#include <linux/linkage.h>
16 15
17#ifndef CONFIG_MMU 16#ifndef CONFIG_MMU
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile
index 1f95881d843..df421e50143 100644
--- a/arch/m68k/lib/Makefile
+++ b/arch/m68k/lib/Makefile
@@ -1,5 +1,14 @@
1
2#
3# Makefile for m68k-specific library files..
4#
5
6lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
7 memcpy.o memset.o memmove.o
8
1ifdef CONFIG_MMU 9ifdef CONFIG_MMU
2include arch/m68k/lib/Makefile_mm 10lib-y += string.o uaccess.o checksum_mm.o
3else 11else
4include arch/m68k/lib/Makefile_no 12lib-y += mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o delay.o checksum_no.o
5endif 13endif
14
diff --git a/arch/m68k/lib/Makefile_mm b/arch/m68k/lib/Makefile_mm
deleted file mode 100644
index af9abf8d9d9..00000000000
--- a/arch/m68k/lib/Makefile_mm
+++ /dev/null
@@ -1,6 +0,0 @@
1#
2# Makefile for m68k-specific library files..
3#
4
5lib-y := ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
6 checksum.o string.o uaccess.o
diff --git a/arch/m68k/lib/Makefile_no b/arch/m68k/lib/Makefile_no
deleted file mode 100644
index 32d852e586d..00000000000
--- a/arch/m68k/lib/Makefile_no
+++ /dev/null
@@ -1,7 +0,0 @@
1#
2# Makefile for m68knommu specific library files..
3#
4
5lib-y := ashldi3.o ashrdi3.o lshrdi3.o \
6 muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \
7 checksum.o memcpy.o memmove.o memset.o delay.o
diff --git a/arch/m68k/lib/checksum.c b/arch/m68k/lib/checksum.c
deleted file mode 100644
index 1297536060d..00000000000
--- a/arch/m68k/lib/checksum.c
+++ /dev/null
@@ -1,5 +0,0 @@
1#ifdef CONFIG_MMU
2#include "checksum_mm.c"
3#else
4#include "checksum_no.c"
5#endif
diff --git a/arch/m68k/lib/checksum_no.c b/arch/m68k/lib/checksum_no.c
index eccf25d3d73..e4c6354da76 100644
--- a/arch/m68k/lib/checksum_no.c
+++ b/arch/m68k/lib/checksum_no.c
@@ -101,6 +101,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
101{ 101{
102 return (__force __sum16)~do_csum(iph,ihl*4); 102 return (__force __sum16)~do_csum(iph,ihl*4);
103} 103}
104EXPORT_SYMBOL(ip_fast_csum);
104#endif 105#endif
105 106
106/* 107/*
@@ -140,6 +141,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst,
140 memcpy(dst, (__force const void *)src, len); 141 memcpy(dst, (__force const void *)src, len);
141 return csum_partial(dst, len, sum); 142 return csum_partial(dst, len, sum);
142} 143}
144EXPORT_SYMBOL(csum_partial_copy_from_user);
143 145
144/* 146/*
145 * copy from ds while checksumming, otherwise like csum_partial 147 * copy from ds while checksumming, otherwise like csum_partial
@@ -151,3 +153,4 @@ csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
151 memcpy(dst, src, len); 153 memcpy(dst, src, len);
152 return csum_partial(dst, len, sum); 154 return csum_partial(dst, len, sum);
153} 155}
156EXPORT_SYMBOL(csum_partial_copy_nocheck);
diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c
index b50dbcad474..62182c81e91 100644
--- a/arch/m68k/lib/memcpy.c
+++ b/arch/m68k/lib/memcpy.c
@@ -1,62 +1,80 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file COPYING in the main directory of this archive
4 * for more details.
5 */
1 6
2#include <linux/types.h> 7#include <linux/module.h>
8#include <linux/string.h>
3 9
4void * memcpy(void * to, const void * from, size_t n) 10void *memcpy(void *to, const void *from, size_t n)
5{ 11{
6#ifdef CONFIG_COLDFIRE 12 void *xto = to;
7 void *xto = to; 13 size_t temp, temp1;
8 size_t temp;
9 14
10 if (!n) 15 if (!n)
11 return xto; 16 return xto;
12 if ((long) to & 1) 17 if ((long)to & 1) {
13 { 18 char *cto = to;
14 char *cto = to; 19 const char *cfrom = from;
15 const char *cfrom = from; 20 *cto++ = *cfrom++;
16 *cto++ = *cfrom++; 21 to = cto;
17 to = cto; 22 from = cfrom;
18 from = cfrom; 23 n--;
19 n--; 24 }
20 } 25 if (n > 2 && (long)to & 2) {
21 if (n > 2 && (long) to & 2) 26 short *sto = to;
22 { 27 const short *sfrom = from;
23 short *sto = to; 28 *sto++ = *sfrom++;
24 const short *sfrom = from; 29 to = sto;
25 *sto++ = *sfrom++; 30 from = sfrom;
26 to = sto; 31 n -= 2;
27 from = sfrom; 32 }
28 n -= 2; 33 temp = n >> 2;
29 } 34 if (temp) {
30 temp = n >> 2; 35 long *lto = to;
31 if (temp) 36 const long *lfrom = from;
32 { 37#if defined(__mc68020__) || defined(__mc68030__) || \
33 long *lto = to; 38 defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
34 const long *lfrom = from; 39 asm volatile (
35 for (; temp; temp--) 40 " movel %2,%3\n"
36 *lto++ = *lfrom++; 41 " andw #7,%3\n"
37 to = lto; 42 " lsrl #3,%2\n"
38 from = lfrom; 43 " negw %3\n"
39 } 44 " jmp %%pc@(1f,%3:w:2)\n"
40 if (n & 2) 45 "4: movel %0@+,%1@+\n"
41 { 46 " movel %0@+,%1@+\n"
42 short *sto = to; 47 " movel %0@+,%1@+\n"
43 const short *sfrom = from; 48 " movel %0@+,%1@+\n"
44 *sto++ = *sfrom++; 49 " movel %0@+,%1@+\n"
45 to = sto; 50 " movel %0@+,%1@+\n"
46 from = sfrom; 51 " movel %0@+,%1@+\n"
47 } 52 " movel %0@+,%1@+\n"
48 if (n & 1) 53 "1: dbra %2,4b\n"
49 { 54 " clrw %2\n"
50 char *cto = to; 55 " subql #1,%2\n"
51 const char *cfrom = from; 56 " jpl 4b"
52 *cto = *cfrom; 57 : "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1)
53 } 58 : "0" (lfrom), "1" (lto), "2" (temp));
54 return xto;
55#else 59#else
56 const char *c_from = from; 60 for (; temp; temp--)
57 char *c_to = to; 61 *lto++ = *lfrom++;
58 while (n-- > 0)
59 *c_to++ = *c_from++;
60 return((void *) to);
61#endif 62#endif
63 to = lto;
64 from = lfrom;
65 }
66 if (n & 2) {
67 short *sto = to;
68 const short *sfrom = from;
69 *sto++ = *sfrom++;
70 to = sto;
71 from = sfrom;
72 }
73 if (n & 1) {
74 char *cto = to;
75 const char *cfrom = from;
76 *cto = *cfrom;
77 }
78 return xto;
62} 79}
80EXPORT_SYMBOL(memcpy);
diff --git a/arch/m68k/lib/memmove.c b/arch/m68k/lib/memmove.c
index b3dcfe9dab7..6519f7f349f 100644
--- a/arch/m68k/lib/memmove.c
+++ b/arch/m68k/lib/memmove.c
@@ -4,8 +4,6 @@
4 * for more details. 4 * for more details.
5 */ 5 */
6 6
7#define __IN_STRING_C
8
9#include <linux/module.h> 7#include <linux/module.h>
10#include <linux/string.h> 8#include <linux/string.h>
11 9
diff --git a/arch/m68k/lib/memset.c b/arch/m68k/lib/memset.c
index 1389bf45563..f649e6a2e64 100644
--- a/arch/m68k/lib/memset.c
+++ b/arch/m68k/lib/memset.c
@@ -1,47 +1,75 @@
1#include <linux/types.h> 1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file COPYING in the main directory of this archive
4 * for more details.
5 */
2 6
3void * memset(void * s, int c, size_t count) 7#include <linux/module.h>
8#include <linux/string.h>
9
10void *memset(void *s, int c, size_t count)
4{ 11{
5 void *xs = s; 12 void *xs = s;
6 size_t temp; 13 size_t temp;
7 14
8 if (!count) 15 if (!count)
9 return xs; 16 return xs;
10 c &= 0xff; 17 c &= 0xff;
11 c |= c << 8; 18 c |= c << 8;
12 c |= c << 16; 19 c |= c << 16;
13 if ((long) s & 1) 20 if ((long)s & 1) {
14 { 21 char *cs = s;
15 char *cs = s; 22 *cs++ = c;
16 *cs++ = c; 23 s = cs;
17 s = cs; 24 count--;
18 count--; 25 }
19 } 26 if (count > 2 && (long)s & 2) {
20 if (count > 2 && (long) s & 2) 27 short *ss = s;
21 { 28 *ss++ = c;
22 short *ss = s; 29 s = ss;
23 *ss++ = c; 30 count -= 2;
24 s = ss; 31 }
25 count -= 2; 32 temp = count >> 2;
26 } 33 if (temp) {
27 temp = count >> 2; 34 long *ls = s;
28 if (temp) 35#if defined(__mc68020__) || defined(__mc68030__) || \
29 { 36 defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
30 long *ls = s; 37 size_t temp1;
31 for (; temp; temp--) 38 asm volatile (
32 *ls++ = c; 39 " movel %1,%2\n"
33 s = ls; 40 " andw #7,%2\n"
34 } 41 " lsrl #3,%1\n"
35 if (count & 2) 42 " negw %2\n"
36 { 43 " jmp %%pc@(2f,%2:w:2)\n"
37 short *ss = s; 44 "1: movel %3,%0@+\n"
38 *ss++ = c; 45 " movel %3,%0@+\n"
39 s = ss; 46 " movel %3,%0@+\n"
40 } 47 " movel %3,%0@+\n"
41 if (count & 1) 48 " movel %3,%0@+\n"
42 { 49 " movel %3,%0@+\n"
43 char *cs = s; 50 " movel %3,%0@+\n"
44 *cs = c; 51 " movel %3,%0@+\n"
45 } 52 "2: dbra %1,1b\n"
46 return xs; 53 " clrw %1\n"
54 " subql #1,%1\n"
55 " jpl 1b"
56 : "=a" (ls), "=d" (temp), "=&d" (temp1)
57 : "d" (c), "0" (ls), "1" (temp));
58#else
59 for (; temp; temp--)
60 *ls++ = c;
61#endif
62 s = ls;
63 }
64 if (count & 2) {
65 short *ss = s;
66 *ss++ = c;
67 s = ss;
68 }
69 if (count & 1) {
70 char *cs = s;
71 *cs = c;
72 }
73 return xs;
47} 74}
75EXPORT_SYMBOL(memset);
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c
index 16e0eb338ee..079bafca073 100644
--- a/arch/m68k/lib/muldi3.c
+++ b/arch/m68k/lib/muldi3.c
@@ -1,5 +1,98 @@
1#ifdef CONFIG_MMU 1/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
2#include "muldi3_mm.c" 2 gcc-2.7.2.3/longlong.h which is: */
3/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING. If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA. */
21
22#if defined(__mc68020__) || defined(__mc68030__) || \
23 defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
24
25#define umul_ppmm(w1, w0, u, v) \
26 __asm__ ("mulu%.l %3,%1:%0" \
27 : "=d" ((USItype)(w0)), \
28 "=d" ((USItype)(w1)) \
29 : "%0" ((USItype)(u)), \
30 "dmi" ((USItype)(v)))
31
3#else 32#else
4#include "muldi3_no.c" 33
34#define SI_TYPE_SIZE 32
35#define __BITS4 (SI_TYPE_SIZE / 4)
36#define __ll_B (1L << (SI_TYPE_SIZE / 2))
37#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
38#define __ll_highpart(t) ((USItype) (t) / __ll_B)
39
40#define umul_ppmm(w1, w0, u, v) \
41 do { \
42 USItype __x0, __x1, __x2, __x3; \
43 USItype __ul, __vl, __uh, __vh; \
44 \
45 __ul = __ll_lowpart (u); \
46 __uh = __ll_highpart (u); \
47 __vl = __ll_lowpart (v); \
48 __vh = __ll_highpart (v); \
49 \
50 __x0 = (USItype) __ul * __vl; \
51 __x1 = (USItype) __ul * __vh; \
52 __x2 = (USItype) __uh * __vl; \
53 __x3 = (USItype) __uh * __vh; \
54 \
55 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
56 __x1 += __x2; /* but this indeed can */ \
57 if (__x1 < __x2) /* did we get it? */ \
58 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
59 \
60 (w1) = __x3 + __ll_highpart (__x1); \
61 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
62 } while (0)
63
5#endif 64#endif
65
66#define __umulsidi3(u, v) \
67 ({DIunion __w; \
68 umul_ppmm (__w.s.high, __w.s.low, u, v); \
69 __w.ll; })
70
71typedef int SItype __attribute__ ((mode (SI)));
72typedef unsigned int USItype __attribute__ ((mode (SI)));
73typedef int DItype __attribute__ ((mode (DI)));
74typedef int word_type __attribute__ ((mode (__word__)));
75
76struct DIstruct {SItype high, low;};
77
78typedef union
79{
80 struct DIstruct s;
81 DItype ll;
82} DIunion;
83
84DItype
85__muldi3 (DItype u, DItype v)
86{
87 DIunion w;
88 DIunion uu, vv;
89
90 uu.ll = u,
91 vv.ll = v;
92
93 w.ll = __umulsidi3 (uu.s.low, vv.s.low);
94 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
95 + (USItype) uu.s.high * (USItype) vv.s.low);
96
97 return w.ll;
98}
diff --git a/arch/m68k/lib/muldi3_mm.c b/arch/m68k/lib/muldi3_mm.c
deleted file mode 100644
index be4f275649e..00000000000
--- a/arch/m68k/lib/muldi3_mm.c
+++ /dev/null
@@ -1,63 +0,0 @@
1/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
2 gcc-2.7.2.3/longlong.h which is: */
3/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING. If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA. */
21
22#define BITS_PER_UNIT 8
23
24#define umul_ppmm(w1, w0, u, v) \
25 __asm__ ("mulu%.l %3,%1:%0" \
26 : "=d" ((USItype)(w0)), \
27 "=d" ((USItype)(w1)) \
28 : "%0" ((USItype)(u)), \
29 "dmi" ((USItype)(v)))
30
31#define __umulsidi3(u, v) \
32 ({DIunion __w; \
33 umul_ppmm (__w.s.high, __w.s.low, u, v); \
34 __w.ll; })
35
36typedef int SItype __attribute__ ((mode (SI)));
37typedef unsigned int USItype __attribute__ ((mode (SI)));
38typedef int DItype __attribute__ ((mode (DI)));
39typedef int word_type __attribute__ ((mode (__word__)));
40
41struct DIstruct {SItype high, low;};
42
43typedef union
44{
45 struct DIstruct s;
46 DItype ll;
47} DIunion;
48
49DItype
50__muldi3 (DItype u, DItype v)
51{
52 DIunion w;
53 DIunion uu, vv;
54
55 uu.ll = u,
56 vv.ll = v;
57
58 w.ll = __umulsidi3 (uu.s.low, vv.s.low);
59 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
60 + (USItype) uu.s.high * (USItype) vv.s.low);
61
62 return w.ll;
63}
diff --git a/arch/m68k/lib/muldi3_no.c b/arch/m68k/lib/muldi3_no.c
deleted file mode 100644
index 34af72c3030..00000000000
--- a/arch/m68k/lib/muldi3_no.c
+++ /dev/null
@@ -1,86 +0,0 @@
1/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
2 gcc-2.7.2.3/longlong.h which is: */
3/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
4
5This file is part of GNU CC.
6
7GNU CC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GNU CC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GNU CC; see the file COPYING. If not, write to
19the Free Software Foundation, 59 Temple Place - Suite 330,
20Boston, MA 02111-1307, USA. */
21
22#define BITS_PER_UNIT 8
23#define SI_TYPE_SIZE 32
24
25#define __BITS4 (SI_TYPE_SIZE / 4)
26#define __ll_B (1L << (SI_TYPE_SIZE / 2))
27#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
28#define __ll_highpart(t) ((USItype) (t) / __ll_B)
29
30#define umul_ppmm(w1, w0, u, v) \
31 do { \
32 USItype __x0, __x1, __x2, __x3; \
33 USItype __ul, __vl, __uh, __vh; \
34 \
35 __ul = __ll_lowpart (u); \
36 __uh = __ll_highpart (u); \
37 __vl = __ll_lowpart (v); \
38 __vh = __ll_highpart (v); \
39 \
40 __x0 = (USItype) __ul * __vl; \
41 __x1 = (USItype) __ul * __vh; \
42 __x2 = (USItype) __uh * __vl; \
43 __x3 = (USItype) __uh * __vh; \
44 \
45 __x1 += __ll_highpart (__x0);/* this can't give carry */ \
46 __x1 += __x2; /* but this indeed can */ \
47 if (__x1 < __x2) /* did we get it? */ \
48 __x3 += __ll_B; /* yes, add it in the proper pos. */ \
49 \
50 (w1) = __x3 + __ll_highpart (__x1); \
51 (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
52 } while (0)
53
54#define __umulsidi3(u, v) \
55 ({DIunion __w; \
56 umul_ppmm (__w.s.high, __w.s.low, u, v); \
57 __w.ll; })
58
59typedef int SItype __attribute__ ((mode (SI)));
60typedef unsigned int USItype __attribute__ ((mode (SI)));
61typedef int DItype __attribute__ ((mode (DI)));
62typedef int word_type __attribute__ ((mode (__word__)));
63
64struct DIstruct {SItype high, low;};
65
66typedef union
67{
68 struct DIstruct s;
69 DItype ll;
70} DIunion;
71
72DItype
73__muldi3 (DItype u, DItype v)
74{
75 DIunion w;
76 DIunion uu, vv;
77
78 uu.ll = u,
79 vv.ll = v;
80
81 w.ll = __umulsidi3 (uu.s.low, vv.s.low);
82 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
83 + (USItype) uu.s.high * (USItype) vv.s.low);
84
85 return w.ll;
86}
diff --git a/arch/m68k/lib/string.c b/arch/m68k/lib/string.c
index d399c5f2563..b9a57abfad0 100644
--- a/arch/m68k/lib/string.c
+++ b/arch/m68k/lib/string.c
@@ -20,226 +20,3 @@ char *strcat(char *dest, const char *src)
20 return __kernel_strcpy(dest + __kernel_strlen(dest), src); 20 return __kernel_strcpy(dest + __kernel_strlen(dest), src);
21} 21}
22EXPORT_SYMBOL(strcat); 22EXPORT_SYMBOL(strcat);
23
24void *memset(void *s, int c, size_t count)
25{
26 void *xs = s;
27 size_t temp, temp1;
28
29 if (!count)
30 return xs;
31 c &= 0xff;
32 c |= c << 8;
33 c |= c << 16;
34 if ((long)s & 1) {
35 char *cs = s;
36 *cs++ = c;
37 s = cs;
38 count--;
39 }
40 if (count > 2 && (long)s & 2) {
41 short *ss = s;
42 *ss++ = c;
43 s = ss;
44 count -= 2;
45 }
46 temp = count >> 2;
47 if (temp) {
48 long *ls = s;
49
50 asm volatile (
51 " movel %1,%2\n"
52 " andw #7,%2\n"
53 " lsrl #3,%1\n"
54 " negw %2\n"
55 " jmp %%pc@(2f,%2:w:2)\n"
56 "1: movel %3,%0@+\n"
57 " movel %3,%0@+\n"
58 " movel %3,%0@+\n"
59 " movel %3,%0@+\n"
60 " movel %3,%0@+\n"
61 " movel %3,%0@+\n"
62 " movel %3,%0@+\n"
63 " movel %3,%0@+\n"
64 "2: dbra %1,1b\n"
65 " clrw %1\n"
66 " subql #1,%1\n"
67 " jpl 1b"
68 : "=a" (ls), "=d" (temp), "=&d" (temp1)
69 : "d" (c), "0" (ls), "1" (temp));
70 s = ls;
71 }
72 if (count & 2) {
73 short *ss = s;
74 *ss++ = c;
75 s = ss;
76 }
77 if (count & 1) {
78 char *cs = s;
79 *cs = c;
80 }
81 return xs;
82}
83EXPORT_SYMBOL(memset);
84
85void *memcpy(void *to, const void *from, size_t n)
86{
87 void *xto = to;
88 size_t temp, temp1;
89
90 if (!n)
91 return xto;
92 if ((long)to & 1) {
93 char *cto = to;
94 const char *cfrom = from;
95 *cto++ = *cfrom++;
96 to = cto;
97 from = cfrom;
98 n--;
99 }
100 if (n > 2 && (long)to & 2) {
101 short *sto = to;
102 const short *sfrom = from;
103 *sto++ = *sfrom++;
104 to = sto;
105 from = sfrom;
106 n -= 2;
107 }
108 temp = n >> 2;
109 if (temp) {
110 long *lto = to;
111 const long *lfrom = from;
112
113 asm volatile (
114 " movel %2,%3\n"
115 " andw #7,%3\n"
116 " lsrl #3,%2\n"
117 " negw %3\n"
118 " jmp %%pc@(1f,%3:w:2)\n"
119 "4: movel %0@+,%1@+\n"
120 " movel %0@+,%1@+\n"
121 " movel %0@+,%1@+\n"
122 " movel %0@+,%1@+\n"
123 " movel %0@+,%1@+\n"
124 " movel %0@+,%1@+\n"
125 " movel %0@+,%1@+\n"
126 " movel %0@+,%1@+\n"
127 "1: dbra %2,4b\n"
128 " clrw %2\n"
129 " subql #1,%2\n"
130 " jpl 4b"
131 : "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1)
132 : "0" (lfrom), "1" (lto), "2" (temp));
133 to = lto;
134 from = lfrom;
135 }
136 if (n & 2) {
137 short *sto = to;
138 const short *sfrom = from;
139 *sto++ = *sfrom++;
140 to = sto;
141 from = sfrom;
142 }
143 if (n & 1) {
144 char *cto = to;
145 const char *cfrom = from;
146 *cto = *cfrom;
147 }
148 return xto;
149}
150EXPORT_SYMBOL(memcpy);
151
152void *memmove(void *dest, const void *src, size_t n)
153{
154 void *xdest = dest;
155 size_t temp;
156
157 if (!n)
158 return xdest;
159
160 if (dest < src) {
161 if ((long)dest & 1) {
162 char *cdest = dest;
163 const char *csrc = src;
164 *cdest++ = *csrc++;
165 dest = cdest;
166 src = csrc;
167 n--;
168 }
169 if (n > 2 && (long)dest & 2) {
170 short *sdest = dest;
171 const short *ssrc = src;
172 *sdest++ = *ssrc++;
173 dest = sdest;
174 src = ssrc;
175 n -= 2;
176 }
177 temp = n >> 2;
178 if (temp) {
179 long *ldest = dest;
180 const long *lsrc = src;
181 temp--;
182 do
183 *ldest++ = *lsrc++;
184 while (temp--);
185 dest = ldest;
186 src = lsrc;
187 }
188 if (n & 2) {
189 short *sdest = dest;
190 const short *ssrc = src;
191 *sdest++ = *ssrc++;
192 dest = sdest;
193 src = ssrc;
194 }
195 if (n & 1) {
196 char *cdest = dest;
197 const char *csrc = src;
198 *cdest = *csrc;
199 }
200 } else {
201 dest = (char *)dest + n;
202 src = (const char *)src + n;
203 if ((long)dest & 1) {
204 char *cdest = dest;
205 const char *csrc = src;
206 *--cdest = *--csrc;
207 dest = cdest;
208 src = csrc;
209 n--;
210 }
211 if (n > 2 && (long)dest & 2) {
212 short *sdest = dest;
213 const short *ssrc = src;
214 *--sdest = *--ssrc;
215 dest = sdest;
216 src = ssrc;
217 n -= 2;
218 }
219 temp = n >> 2;
220 if (temp) {
221 long *ldest = dest;
222 const long *lsrc = src;
223 temp--;
224 do
225 *--ldest = *--lsrc;
226 while (temp--);
227 dest = ldest;
228 src = lsrc;
229 }
230 if (n & 2) {
231 short *sdest = dest;
232 const short *ssrc = src;
233 *--sdest = *--ssrc;
234 dest = sdest;
235 src = ssrc;
236 }
237 if (n & 1) {
238 char *cdest = dest;
239 const char *csrc = src;
240 *--cdest = *--csrc;
241 }
242 }
243 return xdest;
244}
245EXPORT_SYMBOL(memmove);
diff --git a/arch/m68k/mm/Makefile b/arch/m68k/mm/Makefile
index b60270e4954..09cadf1058d 100644
--- a/arch/m68k/mm/Makefile
+++ b/arch/m68k/mm/Makefile
@@ -1,5 +1,9 @@
1ifdef CONFIG_MMU 1#
2include arch/m68k/mm/Makefile_mm 2# Makefile for the linux m68k-specific parts of the memory manager.
3else 3#
4include arch/m68k/mm/Makefile_no 4
5endif 5obj-y := init.o
6
7obj-$(CONFIG_MMU) += cache.o fault.o hwtest.o
8obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o
9obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o
diff --git a/arch/m68k/mm/Makefile_mm b/arch/m68k/mm/Makefile_mm
deleted file mode 100644
index 5eaa43c4cb3..00000000000
--- a/arch/m68k/mm/Makefile_mm
+++ /dev/null
@@ -1,8 +0,0 @@
1#
2# Makefile for the linux m68k-specific parts of the memory manager.
3#
4
5obj-y := cache.o init.o fault.o hwtest.o
6
7obj-$(CONFIG_MMU_MOTOROLA) += kmap.o memory.o motorola.o
8obj-$(CONFIG_MMU_SUN3) += sun3kmap.o sun3mmu.o
diff --git a/arch/m68k/mm/Makefile_no b/arch/m68k/mm/Makefile_no
deleted file mode 100644
index b54ab6b4b52..00000000000
--- a/arch/m68k/mm/Makefile_no
+++ /dev/null
@@ -1,5 +0,0 @@
1#
2# Makefile for the linux m68knommu specific parts of the memory manager.
3#
4
5obj-y += init.o kmap.o
diff --git a/arch/m68k/mm/init_no.c b/arch/m68k/mm/init_no.c
index 8a6653f56bd..7cbd7bd1f8b 100644
--- a/arch/m68k/mm/init_no.c
+++ b/arch/m68k/mm/init_no.c
@@ -38,28 +38,10 @@
38#include <asm/system.h> 38#include <asm/system.h>
39#include <asm/machdep.h> 39#include <asm/machdep.h>
40 40
41#undef DEBUG
42
43extern void die_if_kernel(char *,struct pt_regs *,long);
44extern void free_initmem(void);
45
46/* 41/*
47 * BAD_PAGE is the page that is used for page faults when linux
48 * is out-of-memory. Older versions of linux just did a
49 * do_exit(), but using this instead means there is less risk
50 * for a process dying in kernel mode, possibly leaving a inode
51 * unused etc..
52 *
53 * BAD_PAGETABLE is the accompanying page-table: it is initialized
54 * to point to BAD_PAGE entries.
55 *
56 * ZERO_PAGE is a special page that is used for zero-initialized 42 * ZERO_PAGE is a special page that is used for zero-initialized
57 * data and COW. 43 * data and COW.
58 */ 44 */
59static unsigned long empty_bad_page_table;
60
61static unsigned long empty_bad_page;
62
63unsigned long empty_zero_page; 45unsigned long empty_zero_page;
64 46
65extern unsigned long memory_start; 47extern unsigned long memory_start;
@@ -77,22 +59,9 @@ void __init paging_init(void)
77 * Make sure start_mem is page aligned, otherwise bootmem and 59 * Make sure start_mem is page aligned, otherwise bootmem and
78 * page_alloc get different views of the world. 60 * page_alloc get different views of the world.
79 */ 61 */
80#ifdef DEBUG
81 unsigned long start_mem = PAGE_ALIGN(memory_start);
82#endif
83 unsigned long end_mem = memory_end & PAGE_MASK; 62 unsigned long end_mem = memory_end & PAGE_MASK;
63 unsigned long zones_size[MAX_NR_ZONES] = {0, };
84 64
85#ifdef DEBUG
86 printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n",
87 start_mem, end_mem);
88#endif
89
90 /*
91 * Initialize the bad page table and bad page to point
92 * to a couple of allocated pages.
93 */
94 empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
95 empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
96 empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); 65 empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
97 memset((void *)empty_zero_page, 0, PAGE_SIZE); 66 memset((void *)empty_zero_page, 0, PAGE_SIZE);
98 67
@@ -101,19 +70,8 @@ void __init paging_init(void)
101 */ 70 */
102 set_fs (USER_DS); 71 set_fs (USER_DS);
103 72
104#ifdef DEBUG 73 zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
105 printk (KERN_DEBUG "before free_area_init\n"); 74 free_area_init(zones_size);
106
107 printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
108 start_mem, end_mem);
109#endif
110
111 {
112 unsigned long zones_size[MAX_NR_ZONES] = {0, };
113
114 zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
115 free_area_init(zones_size);
116 }
117} 75}
118 76
119void __init mem_init(void) 77void __init mem_init(void)
@@ -166,8 +124,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
166} 124}
167#endif 125#endif
168 126
169void 127void free_initmem(void)
170free_initmem()
171{ 128{
172#ifdef CONFIG_RAMKERNEL 129#ifdef CONFIG_RAMKERNEL
173 unsigned long addr; 130 unsigned long addr;
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index a373d136b2b..69345849454 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -1,5 +1,367 @@
1#ifdef CONFIG_MMU 1/*
2#include "kmap_mm.c" 2 * linux/arch/m68k/mm/kmap.c
3 *
4 * Copyright (C) 1997 Roman Hodek
5 *
6 * 10/01/99 cleaned up the code and changing to the same interface
7 * used by other architectures /Roman Zippel
8 */
9
10#include <linux/module.h>
11#include <linux/mm.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/types.h>
15#include <linux/slab.h>
16#include <linux/vmalloc.h>
17
18#include <asm/setup.h>
19#include <asm/segment.h>
20#include <asm/page.h>
21#include <asm/pgalloc.h>
22#include <asm/io.h>
23#include <asm/system.h>
24
25#undef DEBUG
26
27#define PTRTREESIZE (256*1024)
28
29/*
30 * For 040/060 we can use the virtual memory area like other architectures,
31 * but for 020/030 we want to use early termination page descriptor and we
32 * can't mix this with normal page descriptors, so we have to copy that code
33 * (mm/vmalloc.c) and return appriorate aligned addresses.
34 */
35
36#ifdef CPU_M68040_OR_M68060_ONLY
37
38#define IO_SIZE PAGE_SIZE
39
40static inline struct vm_struct *get_io_area(unsigned long size)
41{
42 return get_vm_area(size, VM_IOREMAP);
43}
44
45
46static inline void free_io_area(void *addr)
47{
48 vfree((void *)(PAGE_MASK & (unsigned long)addr));
49}
50
3#else 51#else
4#include "kmap_no.c" 52
53#define IO_SIZE (256*1024)
54
55static struct vm_struct *iolist;
56
57static struct vm_struct *get_io_area(unsigned long size)
58{
59 unsigned long addr;
60 struct vm_struct **p, *tmp, *area;
61
62 area = kmalloc(sizeof(*area), GFP_KERNEL);
63 if (!area)
64 return NULL;
65 addr = KMAP_START;
66 for (p = &iolist; (tmp = *p) ; p = &tmp->next) {
67 if (size + addr < (unsigned long)tmp->addr)
68 break;
69 if (addr > KMAP_END-size) {
70 kfree(area);
71 return NULL;
72 }
73 addr = tmp->size + (unsigned long)tmp->addr;
74 }
75 area->addr = (void *)addr;
76 area->size = size + IO_SIZE;
77 area->next = *p;
78 *p = area;
79 return area;
80}
81
82static inline void free_io_area(void *addr)
83{
84 struct vm_struct **p, *tmp;
85
86 if (!addr)
87 return;
88 addr = (void *)((unsigned long)addr & -IO_SIZE);
89 for (p = &iolist ; (tmp = *p) ; p = &tmp->next) {
90 if (tmp->addr == addr) {
91 *p = tmp->next;
92 __iounmap(tmp->addr, tmp->size);
93 kfree(tmp);
94 return;
95 }
96 }
97}
98
5#endif 99#endif
100
101/*
102 * Map some physical address range into the kernel address space.
103 */
104/* Rewritten by Andreas Schwab to remove all races. */
105
106void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
107{
108 struct vm_struct *area;
109 unsigned long virtaddr, retaddr;
110 long offset;
111 pgd_t *pgd_dir;
112 pmd_t *pmd_dir;
113 pte_t *pte_dir;
114
115 /*
116 * Don't allow mappings that wrap..
117 */
118 if (!size || physaddr > (unsigned long)(-size))
119 return NULL;
120
121#ifdef CONFIG_AMIGA
122 if (MACH_IS_AMIGA) {
123 if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000)
124 && (cacheflag == IOMAP_NOCACHE_SER))
125 return (void __iomem *)physaddr;
126 }
127#endif
128
129#ifdef DEBUG
130 printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag);
131#endif
132 /*
133 * Mappings have to be aligned
134 */
135 offset = physaddr & (IO_SIZE - 1);
136 physaddr &= -IO_SIZE;
137 size = (size + offset + IO_SIZE - 1) & -IO_SIZE;
138
139 /*
140 * Ok, go for it..
141 */
142 area = get_io_area(size);
143 if (!area)
144 return NULL;
145
146 virtaddr = (unsigned long)area->addr;
147 retaddr = virtaddr + offset;
148#ifdef DEBUG
149 printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr);
150#endif
151
152 /*
153 * add cache and table flags to physical address
154 */
155 if (CPU_IS_040_OR_060) {
156 physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 |
157 _PAGE_ACCESSED | _PAGE_DIRTY);
158 switch (cacheflag) {
159 case IOMAP_FULL_CACHING:
160 physaddr |= _PAGE_CACHE040;
161 break;
162 case IOMAP_NOCACHE_SER:
163 default:
164 physaddr |= _PAGE_NOCACHE_S;
165 break;
166 case IOMAP_NOCACHE_NONSER:
167 physaddr |= _PAGE_NOCACHE;
168 break;
169 case IOMAP_WRITETHROUGH:
170 physaddr |= _PAGE_CACHE040W;
171 break;
172 }
173 } else {
174 physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
175 switch (cacheflag) {
176 case IOMAP_NOCACHE_SER:
177 case IOMAP_NOCACHE_NONSER:
178 default:
179 physaddr |= _PAGE_NOCACHE030;
180 break;
181 case IOMAP_FULL_CACHING:
182 case IOMAP_WRITETHROUGH:
183 break;
184 }
185 }
186
187 while ((long)size > 0) {
188#ifdef DEBUG
189 if (!(virtaddr & (PTRTREESIZE-1)))
190 printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr);
191#endif
192 pgd_dir = pgd_offset_k(virtaddr);
193 pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr);
194 if (!pmd_dir) {
195 printk("ioremap: no mem for pmd_dir\n");
196 return NULL;
197 }
198
199 if (CPU_IS_020_OR_030) {
200 pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr;
201 physaddr += PTRTREESIZE;
202 virtaddr += PTRTREESIZE;
203 size -= PTRTREESIZE;
204 } else {
205 pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
206 if (!pte_dir) {
207 printk("ioremap: no mem for pte_dir\n");
208 return NULL;
209 }
210
211 pte_val(*pte_dir) = physaddr;
212 virtaddr += PAGE_SIZE;
213 physaddr += PAGE_SIZE;
214 size -= PAGE_SIZE;
215 }
216 }
217#ifdef DEBUG
218 printk("\n");
219#endif
220 flush_tlb_all();
221
222 return (void __iomem *)retaddr;
223}
224EXPORT_SYMBOL(__ioremap);
225
226/*
227 * Unmap a ioremap()ed region again
228 */
229void iounmap(void __iomem *addr)
230{
231#ifdef CONFIG_AMIGA
232 if ((!MACH_IS_AMIGA) ||
233 (((unsigned long)addr < 0x40000000) ||
234 ((unsigned long)addr > 0x60000000)))
235 free_io_area((__force void *)addr);
236#else
237 free_io_area((__force void *)addr);
238#endif
239}
240EXPORT_SYMBOL(iounmap);
241
242/*
243 * __iounmap unmaps nearly everything, so be careful
244 * it doesn't free currently pointer/page tables anymore but it
245 * wans't used anyway and might be added later.
246 */
247void __iounmap(void *addr, unsigned long size)
248{
249 unsigned long virtaddr = (unsigned long)addr;
250 pgd_t *pgd_dir;
251 pmd_t *pmd_dir;
252 pte_t *pte_dir;
253
254 while ((long)size > 0) {
255 pgd_dir = pgd_offset_k(virtaddr);
256 if (pgd_bad(*pgd_dir)) {
257 printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
258 pgd_clear(pgd_dir);
259 return;
260 }
261 pmd_dir = pmd_offset(pgd_dir, virtaddr);
262
263 if (CPU_IS_020_OR_030) {
264 int pmd_off = (virtaddr/PTRTREESIZE) & 15;
265 int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK;
266
267 if (pmd_type == _PAGE_PRESENT) {
268 pmd_dir->pmd[pmd_off] = 0;
269 virtaddr += PTRTREESIZE;
270 size -= PTRTREESIZE;
271 continue;
272 } else if (pmd_type == 0)
273 continue;
274 }
275
276 if (pmd_bad(*pmd_dir)) {
277 printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
278 pmd_clear(pmd_dir);
279 return;
280 }
281 pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
282
283 pte_val(*pte_dir) = 0;
284 virtaddr += PAGE_SIZE;
285 size -= PAGE_SIZE;
286 }
287
288 flush_tlb_all();
289}
290
291/*
292 * Set new cache mode for some kernel address space.
293 * The caller must push data for that range itself, if such data may already
294 * be in the cache.
295 */
296void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
297{
298 unsigned long virtaddr = (unsigned long)addr;
299 pgd_t *pgd_dir;
300 pmd_t *pmd_dir;
301 pte_t *pte_dir;
302
303 if (CPU_IS_040_OR_060) {
304 switch (cmode) {
305 case IOMAP_FULL_CACHING:
306 cmode = _PAGE_CACHE040;
307 break;
308 case IOMAP_NOCACHE_SER:
309 default:
310 cmode = _PAGE_NOCACHE_S;
311 break;
312 case IOMAP_NOCACHE_NONSER:
313 cmode = _PAGE_NOCACHE;
314 break;
315 case IOMAP_WRITETHROUGH:
316 cmode = _PAGE_CACHE040W;
317 break;
318 }
319 } else {
320 switch (cmode) {
321 case IOMAP_NOCACHE_SER:
322 case IOMAP_NOCACHE_NONSER:
323 default:
324 cmode = _PAGE_NOCACHE030;
325 break;
326 case IOMAP_FULL_CACHING:
327 case IOMAP_WRITETHROUGH:
328 cmode = 0;
329 }
330 }
331
332 while ((long)size > 0) {
333 pgd_dir = pgd_offset_k(virtaddr);
334 if (pgd_bad(*pgd_dir)) {
335 printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
336 pgd_clear(pgd_dir);
337 return;
338 }
339 pmd_dir = pmd_offset(pgd_dir, virtaddr);
340
341 if (CPU_IS_020_OR_030) {
342 int pmd_off = (virtaddr/PTRTREESIZE) & 15;
343
344 if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) {
345 pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] &
346 _CACHEMASK040) | cmode;
347 virtaddr += PTRTREESIZE;
348 size -= PTRTREESIZE;
349 continue;
350 }
351 }
352
353 if (pmd_bad(*pmd_dir)) {
354 printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
355 pmd_clear(pmd_dir);
356 return;
357 }
358 pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
359
360 pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode;
361 virtaddr += PAGE_SIZE;
362 size -= PAGE_SIZE;
363 }
364
365 flush_tlb_all();
366}
367EXPORT_SYMBOL(kernel_set_cachemode);
diff --git a/arch/m68k/mm/kmap_mm.c b/arch/m68k/mm/kmap_mm.c
deleted file mode 100644
index 69345849454..00000000000
--- a/arch/m68k/mm/kmap_mm.c
+++ /dev/null
@@ -1,367 +0,0 @@
1/*
2 * linux/arch/m68k/mm/kmap.c
3 *
4 * Copyright (C) 1997 Roman Hodek
5 *
6 * 10/01/99 cleaned up the code and changing to the same interface
7 * used by other architectures /Roman Zippel
8 */
9
10#include <linux/module.h>
11#include <linux/mm.h>
12#include <linux/kernel.h>
13#include <linux/string.h>
14#include <linux/types.h>
15#include <linux/slab.h>
16#include <linux/vmalloc.h>
17
18#include <asm/setup.h>
19#include <asm/segment.h>
20#include <asm/page.h>
21#include <asm/pgalloc.h>
22#include <asm/io.h>
23#include <asm/system.h>
24
25#undef DEBUG
26
27#define PTRTREESIZE (256*1024)
28
29/*
30 * For 040/060 we can use the virtual memory area like other architectures,
31 * but for 020/030 we want to use early termination page descriptor and we
32 * can't mix this with normal page descriptors, so we have to copy that code
33 * (mm/vmalloc.c) and return appriorate aligned addresses.
34 */
35
36#ifdef CPU_M68040_OR_M68060_ONLY
37
38#define IO_SIZE PAGE_SIZE
39
40static inline struct vm_struct *get_io_area(unsigned long size)
41{
42 return get_vm_area(size, VM_IOREMAP);
43}
44
45
46static inline void free_io_area(void *addr)
47{
48 vfree((void *)(PAGE_MASK & (unsigned long)addr));
49}
50
51#else
52
53#define IO_SIZE (256*1024)
54
55static struct vm_struct *iolist;
56
57static struct vm_struct *get_io_area(unsigned long size)
58{
59 unsigned long addr;
60 struct vm_struct **p, *tmp, *area;
61
62 area = kmalloc(sizeof(*area), GFP_KERNEL);
63 if (!area)
64 return NULL;
65 addr = KMAP_START;
66 for (p = &iolist; (tmp = *p) ; p = &tmp->next) {
67 if (size + addr < (unsigned long)tmp->addr)
68 break;
69 if (addr > KMAP_END-size) {
70 kfree(area);
71 return NULL;
72 }
73 addr = tmp->size + (unsigned long)tmp->addr;
74 }
75 area->addr = (void *)addr;
76 area->size = size + IO_SIZE;
77 area->next = *p;
78 *p = area;
79 return area;
80}
81
82static inline void free_io_area(void *addr)
83{
84 struct vm_struct **p, *tmp;
85
86 if (!addr)
87 return;
88 addr = (void *)((unsigned long)addr & -IO_SIZE);
89 for (p = &iolist ; (tmp = *p) ; p = &tmp->next) {
90 if (tmp->addr == addr) {
91 *p = tmp->next;
92 __iounmap(tmp->addr, tmp->size);
93 kfree(tmp);
94 return;
95 }
96 }
97}
98
99#endif
100
101/*
102 * Map some physical address range into the kernel address space.
103 */
104/* Rewritten by Andreas Schwab to remove all races. */
105
106void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
107{
108 struct vm_struct *area;
109 unsigned long virtaddr, retaddr;
110 long offset;
111 pgd_t *pgd_dir;
112 pmd_t *pmd_dir;
113 pte_t *pte_dir;
114
115 /*
116 * Don't allow mappings that wrap..
117 */
118 if (!size || physaddr > (unsigned long)(-size))
119 return NULL;
120
121#ifdef CONFIG_AMIGA
122 if (MACH_IS_AMIGA) {
123 if ((physaddr >= 0x40000000) && (physaddr + size < 0x60000000)
124 && (cacheflag == IOMAP_NOCACHE_SER))
125 return (void __iomem *)physaddr;
126 }
127#endif
128
129#ifdef DEBUG
130 printk("ioremap: 0x%lx,0x%lx(%d) - ", physaddr, size, cacheflag);
131#endif
132 /*
133 * Mappings have to be aligned
134 */
135 offset = physaddr & (IO_SIZE - 1);
136 physaddr &= -IO_SIZE;
137 size = (size + offset + IO_SIZE - 1) & -IO_SIZE;
138
139 /*
140 * Ok, go for it..
141 */
142 area = get_io_area(size);
143 if (!area)
144 return NULL;
145
146 virtaddr = (unsigned long)area->addr;
147 retaddr = virtaddr + offset;
148#ifdef DEBUG
149 printk("0x%lx,0x%lx,0x%lx", physaddr, virtaddr, retaddr);
150#endif
151
152 /*
153 * add cache and table flags to physical address
154 */
155 if (CPU_IS_040_OR_060) {
156 physaddr |= (_PAGE_PRESENT | _PAGE_GLOBAL040 |
157 _PAGE_ACCESSED | _PAGE_DIRTY);
158 switch (cacheflag) {
159 case IOMAP_FULL_CACHING:
160 physaddr |= _PAGE_CACHE040;
161 break;
162 case IOMAP_NOCACHE_SER:
163 default:
164 physaddr |= _PAGE_NOCACHE_S;
165 break;
166 case IOMAP_NOCACHE_NONSER:
167 physaddr |= _PAGE_NOCACHE;
168 break;
169 case IOMAP_WRITETHROUGH:
170 physaddr |= _PAGE_CACHE040W;
171 break;
172 }
173 } else {
174 physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY);
175 switch (cacheflag) {
176 case IOMAP_NOCACHE_SER:
177 case IOMAP_NOCACHE_NONSER:
178 default:
179 physaddr |= _PAGE_NOCACHE030;
180 break;
181 case IOMAP_FULL_CACHING:
182 case IOMAP_WRITETHROUGH:
183 break;
184 }
185 }
186
187 while ((long)size > 0) {
188#ifdef DEBUG
189 if (!(virtaddr & (PTRTREESIZE-1)))
190 printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr);
191#endif
192 pgd_dir = pgd_offset_k(virtaddr);
193 pmd_dir = pmd_alloc(&init_mm, pgd_dir, virtaddr);
194 if (!pmd_dir) {
195 printk("ioremap: no mem for pmd_dir\n");
196 return NULL;
197 }
198
199 if (CPU_IS_020_OR_030) {
200 pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr;
201 physaddr += PTRTREESIZE;
202 virtaddr += PTRTREESIZE;
203 size -= PTRTREESIZE;
204 } else {
205 pte_dir = pte_alloc_kernel(pmd_dir, virtaddr);
206 if (!pte_dir) {
207 printk("ioremap: no mem for pte_dir\n");
208 return NULL;
209 }
210
211 pte_val(*pte_dir) = physaddr;
212 virtaddr += PAGE_SIZE;
213 physaddr += PAGE_SIZE;
214 size -= PAGE_SIZE;
215 }
216 }
217#ifdef DEBUG
218 printk("\n");
219#endif
220 flush_tlb_all();
221
222 return (void __iomem *)retaddr;
223}
224EXPORT_SYMBOL(__ioremap);
225
226/*
227 * Unmap a ioremap()ed region again
228 */
229void iounmap(void __iomem *addr)
230{
231#ifdef CONFIG_AMIGA
232 if ((!MACH_IS_AMIGA) ||
233 (((unsigned long)addr < 0x40000000) ||
234 ((unsigned long)addr > 0x60000000)))
235 free_io_area((__force void *)addr);
236#else
237 free_io_area((__force void *)addr);
238#endif
239}
240EXPORT_SYMBOL(iounmap);
241
242/*
243 * __iounmap unmaps nearly everything, so be careful
244 * it doesn't free currently pointer/page tables anymore but it
245 * wans't used anyway and might be added later.
246 */
247void __iounmap(void *addr, unsigned long size)
248{
249 unsigned long virtaddr = (unsigned long)addr;
250 pgd_t *pgd_dir;
251 pmd_t *pmd_dir;
252 pte_t *pte_dir;
253
254 while ((long)size > 0) {
255 pgd_dir = pgd_offset_k(virtaddr);
256 if (pgd_bad(*pgd_dir)) {
257 printk("iounmap: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
258 pgd_clear(pgd_dir);
259 return;
260 }
261 pmd_dir = pmd_offset(pgd_dir, virtaddr);
262
263 if (CPU_IS_020_OR_030) {
264 int pmd_off = (virtaddr/PTRTREESIZE) & 15;
265 int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK;
266
267 if (pmd_type == _PAGE_PRESENT) {
268 pmd_dir->pmd[pmd_off] = 0;
269 virtaddr += PTRTREESIZE;
270 size -= PTRTREESIZE;
271 continue;
272 } else if (pmd_type == 0)
273 continue;
274 }
275
276 if (pmd_bad(*pmd_dir)) {
277 printk("iounmap: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
278 pmd_clear(pmd_dir);
279 return;
280 }
281 pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
282
283 pte_val(*pte_dir) = 0;
284 virtaddr += PAGE_SIZE;
285 size -= PAGE_SIZE;
286 }
287
288 flush_tlb_all();
289}
290
291/*
292 * Set new cache mode for some kernel address space.
293 * The caller must push data for that range itself, if such data may already
294 * be in the cache.
295 */
296void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
297{
298 unsigned long virtaddr = (unsigned long)addr;
299 pgd_t *pgd_dir;
300 pmd_t *pmd_dir;
301 pte_t *pte_dir;
302
303 if (CPU_IS_040_OR_060) {
304 switch (cmode) {
305 case IOMAP_FULL_CACHING:
306 cmode = _PAGE_CACHE040;
307 break;
308 case IOMAP_NOCACHE_SER:
309 default:
310 cmode = _PAGE_NOCACHE_S;
311 break;
312 case IOMAP_NOCACHE_NONSER:
313 cmode = _PAGE_NOCACHE;
314 break;
315 case IOMAP_WRITETHROUGH:
316 cmode = _PAGE_CACHE040W;
317 break;
318 }
319 } else {
320 switch (cmode) {
321 case IOMAP_NOCACHE_SER:
322 case IOMAP_NOCACHE_NONSER:
323 default:
324 cmode = _PAGE_NOCACHE030;
325 break;
326 case IOMAP_FULL_CACHING:
327 case IOMAP_WRITETHROUGH:
328 cmode = 0;
329 }
330 }
331
332 while ((long)size > 0) {
333 pgd_dir = pgd_offset_k(virtaddr);
334 if (pgd_bad(*pgd_dir)) {
335 printk("iocachemode: bad pgd(%08lx)\n", pgd_val(*pgd_dir));
336 pgd_clear(pgd_dir);
337 return;
338 }
339 pmd_dir = pmd_offset(pgd_dir, virtaddr);
340
341 if (CPU_IS_020_OR_030) {
342 int pmd_off = (virtaddr/PTRTREESIZE) & 15;
343
344 if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) {
345 pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] &
346 _CACHEMASK040) | cmode;
347 virtaddr += PTRTREESIZE;
348 size -= PTRTREESIZE;
349 continue;
350 }
351 }
352
353 if (pmd_bad(*pmd_dir)) {
354 printk("iocachemode: bad pmd (%08lx)\n", pmd_val(*pmd_dir));
355 pmd_clear(pmd_dir);
356 return;
357 }
358 pte_dir = pte_offset_kernel(pmd_dir, virtaddr);
359
360 pte_val(*pte_dir) = (pte_val(*pte_dir) & _CACHEMASK040) | cmode;
361 virtaddr += PAGE_SIZE;
362 size -= PAGE_SIZE;
363 }
364
365 flush_tlb_all();
366}
367EXPORT_SYMBOL(kernel_set_cachemode);
diff --git a/arch/m68k/mm/kmap_no.c b/arch/m68k/mm/kmap_no.c
deleted file mode 100644
index ece8d5ad4e6..00000000000
--- a/arch/m68k/mm/kmap_no.c
+++ /dev/null
@@ -1,45 +0,0 @@
1/*
2 * linux/arch/m68knommu/mm/kmap.c
3 *
4 * Copyright (C) 2000 Lineo, <davidm@snapgear.com>
5 * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
6 */
7
8#include <linux/mm.h>
9#include <linux/kernel.h>
10#include <linux/string.h>
11#include <linux/types.h>
12#include <linux/vmalloc.h>
13
14#include <asm/setup.h>
15#include <asm/segment.h>
16#include <asm/page.h>
17#include <asm/pgalloc.h>
18#include <asm/io.h>
19#include <asm/system.h>
20
21#undef DEBUG
22
23/*
24 * Map some physical address range into the kernel address space.
25 */
26void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
27{
28 return (void *)physaddr;
29}
30
31/*
32 * Unmap a ioremap()ed region again.
33 */
34void iounmap(void *addr)
35{
36}
37
38/*
39 * Set new cache mode for some kernel address space.
40 * The caller must push data for that range itself, if such data may already
41 * be in the cache.
42 */
43void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
44{
45}
diff --git a/arch/m68k/platform/68328/entry.S b/arch/m68k/platform/68328/entry.S
index 676960cf022..f68dce766c0 100644
--- a/arch/m68k/platform/68328/entry.S
+++ b/arch/m68k/platform/68328/entry.S
@@ -10,7 +10,6 @@
10 * Linux/m68k support by Hamish Macdonald 10 * Linux/m68k support by Hamish Macdonald
11 */ 11 */
12 12
13#include <linux/sys.h>
14#include <linux/linkage.h> 13#include <linux/linkage.h>
15#include <asm/thread_info.h> 14#include <asm/thread_info.h>
16#include <asm/unistd.h> 15#include <asm/unistd.h>
@@ -80,7 +79,7 @@ ENTRY(system_call)
80 movel %sp,%d1 /* get thread_info pointer */ 79 movel %sp,%d1 /* get thread_info pointer */
81 andl #-THREAD_SIZE,%d1 80 andl #-THREAD_SIZE,%d1
82 movel %d1,%a2 81 movel %d1,%a2
83 btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) 82 btst #(TIF_SYSCALL_TRACE%8),%a2@(TINFO_FLAGS+(31-TIF_SYSCALL_TRACE)/8)
84 jne do_trace 83 jne do_trace
85 cmpl #NR_syscalls,%d0 84 cmpl #NR_syscalls,%d0
86 jcc badsys 85 jcc badsys
@@ -107,12 +106,12 @@ Luser_return:
107 andl #-THREAD_SIZE,%d1 106 andl #-THREAD_SIZE,%d1
108 movel %d1,%a2 107 movel %d1,%a2
1091: 1081:
110 move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ 109 move %a2@(TINFO_FLAGS),%d1 /* thread_info->flags */
111 jne Lwork_to_do 110 jne Lwork_to_do
112 RESTORE_ALL 111 RESTORE_ALL
113 112
114Lwork_to_do: 113Lwork_to_do:
115 movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ 114 movel %a2@(TINFO_FLAGS),%d1 /* thread_info->flags */
116 btst #TIF_NEED_RESCHED,%d1 115 btst #TIF_NEED_RESCHED,%d1
117 jne reschedule 116 jne reschedule
118 117
diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S
index 46c1b18c9dc..a07b14feed9 100644
--- a/arch/m68k/platform/68360/entry.S
+++ b/arch/m68k/platform/68360/entry.S
@@ -12,7 +12,6 @@
12 * M68360 Port by SED Systems, and Lineo. 12 * M68360 Port by SED Systems, and Lineo.
13 */ 13 */
14 14
15#include <linux/sys.h>
16#include <linux/linkage.h> 15#include <linux/linkage.h>
17#include <asm/thread_info.h> 16#include <asm/thread_info.h>
18#include <asm/unistd.h> 17#include <asm/unistd.h>
@@ -76,7 +75,7 @@ ENTRY(system_call)
76 movel %sp,%d1 /* get thread_info pointer */ 75 movel %sp,%d1 /* get thread_info pointer */
77 andl #-THREAD_SIZE,%d1 76 andl #-THREAD_SIZE,%d1
78 movel %d1,%a2 77 movel %d1,%a2
79 btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) 78 btst #(TIF_SYSCALL_TRACE%8),%a2@(TINFO_FLAGS+(31-TIF_SYSCALL_TRACE)/8)
80 jne do_trace 79 jne do_trace
81 cmpl #NR_syscalls,%d0 80 cmpl #NR_syscalls,%d0
82 jcc badsys 81 jcc badsys
@@ -103,12 +102,12 @@ Luser_return:
103 andl #-THREAD_SIZE,%d1 102 andl #-THREAD_SIZE,%d1
104 movel %d1,%a2 103 movel %d1,%a2
1051: 1041:
106 move %a2@(TI_FLAGS),%d1 /* thread_info->flags */ 105 move %a2@(TINFO_FLAGS),%d1 /* thread_info->flags */
107 jne Lwork_to_do 106 jne Lwork_to_do
108 RESTORE_ALL 107 RESTORE_ALL
109 108
110Lwork_to_do: 109Lwork_to_do:
111 movel %a2@(TI_FLAGS),%d1 /* thread_info->flags */ 110 movel %a2@(TINFO_FLAGS),%d1 /* thread_info->flags */
112 btst #TIF_NEED_RESCHED,%d1 111 btst #TIF_NEED_RESCHED,%d1
113 jne reschedule 112 jne reschedule
114 113
diff --git a/arch/m68k/platform/coldfire/dma.c b/arch/m68k/platform/coldfire/dma.c
index e88b95e2cc6..df5ce20d181 100644
--- a/arch/m68k/platform/coldfire/dma.c
+++ b/arch/m68k/platform/coldfire/dma.c
@@ -9,6 +9,7 @@
9/***************************************************************************/ 9/***************************************************************************/
10 10
11#include <linux/kernel.h> 11#include <linux/kernel.h>
12#include <linux/module.h>
12#include <asm/dma.h> 13#include <asm/dma.h>
13#include <asm/coldfire.h> 14#include <asm/coldfire.h>
14#include <asm/mcfsim.h> 15#include <asm/mcfsim.h>
@@ -33,7 +34,9 @@ unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
33 MCFDMA_BASE3, 34 MCFDMA_BASE3,
34#endif 35#endif
35}; 36};
37EXPORT_SYMBOL(dma_base_addr);
36 38
37unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; 39unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
40EXPORT_SYMBOL(dma_device_address);
38 41
39/***************************************************************************/ 42/***************************************************************************/
diff --git a/arch/m68k/platform/coldfire/entry.S b/arch/m68k/platform/coldfire/entry.S
index eab63f09965..27c2b001161 100644
--- a/arch/m68k/platform/coldfire/entry.S
+++ b/arch/m68k/platform/coldfire/entry.S
@@ -26,7 +26,6 @@
26 * Bug, speed and maintainability fixes by Philippe De Muyter <phdm@macqel.be> 26 * Bug, speed and maintainability fixes by Philippe De Muyter <phdm@macqel.be>
27 */ 27 */
28 28
29#include <linux/sys.h>
30#include <linux/linkage.h> 29#include <linux/linkage.h>
31#include <asm/unistd.h> 30#include <asm/unistd.h>
32#include <asm/thread_info.h> 31#include <asm/thread_info.h>
@@ -78,7 +77,7 @@ ENTRY(system_call)
78 movel %d2,%a0 77 movel %d2,%a0
79 movel %a0@,%a1 /* save top of frame */ 78 movel %a0@,%a1 /* save top of frame */
80 movel %sp,%a1@(TASK_THREAD+THREAD_ESP0) 79 movel %sp,%a1@(TASK_THREAD+THREAD_ESP0)
81 btst #(TIF_SYSCALL_TRACE%8),%a0@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8) 80 btst #(TIF_SYSCALL_TRACE%8),%a0@(TINFO_FLAGS+(31-TIF_SYSCALL_TRACE)/8)
82 bnes 1f 81 bnes 1f
83 82
84 movel %d3,%a0 83 movel %d3,%a0
@@ -113,11 +112,11 @@ ret_from_exception:
113 movel %sp,%d1 /* get thread_info pointer */ 112 movel %sp,%d1 /* get thread_info pointer */
114 andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ 113 andl #-THREAD_SIZE,%d1 /* at base of kernel stack */
115 movel %d1,%a0 114 movel %d1,%a0
116 movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ 115 movel %a0@(TINFO_FLAGS),%d1 /* get thread_info->flags */
117 andl #(1<<TIF_NEED_RESCHED),%d1 116 andl #(1<<TIF_NEED_RESCHED),%d1
118 jeq Lkernel_return 117 jeq Lkernel_return
119 118
120 movel %a0@(TI_PREEMPTCOUNT),%d1 119 movel %a0@(TINFO_PREEMPT),%d1
121 cmpl #0,%d1 120 cmpl #0,%d1
122 jne Lkernel_return 121 jne Lkernel_return
123 122
@@ -137,14 +136,14 @@ Luser_return:
137 movel %sp,%d1 /* get thread_info pointer */ 136 movel %sp,%d1 /* get thread_info pointer */
138 andl #-THREAD_SIZE,%d1 /* at base of kernel stack */ 137 andl #-THREAD_SIZE,%d1 /* at base of kernel stack */
139 movel %d1,%a0 138 movel %d1,%a0
140 movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ 139 movel %a0@(TINFO_FLAGS),%d1 /* get thread_info->flags */
141 jne Lwork_to_do /* still work to do */ 140 jne Lwork_to_do /* still work to do */
142 141
143Lreturn: 142Lreturn:
144 RESTORE_USER 143 RESTORE_USER
145 144
146Lwork_to_do: 145Lwork_to_do:
147 movel %a0@(TI_FLAGS),%d1 /* get thread_info->flags */ 146 movel %a0@(TINFO_FLAGS),%d1 /* get thread_info->flags */
148 move #0x2000,%sr /* enable intrs again */ 147 move #0x2000,%sr /* enable intrs again */
149 btst #TIF_NEED_RESCHED,%d1 148 btst #TIF_NEED_RESCHED,%d1
150 jne reschedule 149 jne reschedule
diff --git a/arch/m68k/platform/coldfire/head.S b/arch/m68k/platform/coldfire/head.S
index 6ae91a49918..c33483824a2 100644
--- a/arch/m68k/platform/coldfire/head.S
+++ b/arch/m68k/platform/coldfire/head.S
@@ -8,7 +8,6 @@
8 8
9/*****************************************************************************/ 9/*****************************************************************************/
10 10
11#include <linux/sys.h>
12#include <linux/linkage.h> 11#include <linux/linkage.h>
13#include <linux/init.h> 12#include <linux/init.h>
14#include <asm/asm-offsets.h> 13#include <asm/asm-offsets.h>
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-06 07:51:49 -0500