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authorSam Ravnborg <sam@ravnborg.org>2009-01-16 06:58:10 -0500
committerGreg Ungerer <gerg@uclinux.org>2009-01-16 06:58:10 -0500
commit49148020bcb6910ce71417bd990a5ce7017f9bd3 (patch)
treee410cc433a69075a0254ee4000cb10d71df3a641 /include/asm-m68k/page.h
parentae04d1401577bb63151480a053057de58b8e10bb (diff)
m68k,m68knommu: merge header files
Merge header files for m68k and m68knommu to the single location: arch/m68k/include/asm The majority of this patch was the result of the script that is included in the changelog below. The script was originally written by Arnd Bergman and exten by me to cover a few more files. When the header files differed the script uses the following: The original m68k file is named <file>_mm.h [mm for memory manager] The m68knommu file is named <file>_no.h [no for no memory manager] The files uses the following include guard: This include gaurd works as the m68knommu toolchain set the __uClinux__ symbol - so this should work in userspace too. Merging the header files for m68k and m68knommu exposes the (unexpected?) ABI differences thus it is easier to actually identify these and thus to fix them. The commit has been build tested with both a m68k and a m68knommu toolchain - with success. The commit has also been tested with "make headers_check" and this patch fixes make headers_check for m68knommu. The script used: TARGET=arch/m68k/include/asm SOURCE=arch/m68knommu/include/asm INCLUDE="cachectl.h errno.h fcntl.h hwtest.h ioctls.h ipcbuf.h \ linkage.h math-emu.h md.h mman.h movs.h msgbuf.h openprom.h \ oplib.h poll.h posix_types.h resource.h rtc.h sembuf.h shmbuf.h \ shm.h shmparam.h socket.h sockios.h spinlock.h statfs.h stat.h \ termbits.h termios.h tlb.h types.h user.h" EQUAL="auxvec.h cputime.h device.h emergency-restart.h futex.h \ ioctl.h irq_regs.h kdebug.h local.h mutex.h percpu.h \ sections.h topology.h" NOMUUFILES="anchor.h bootstd.h coldfire.h commproc.h dbg.h \ elia.h flat.h m5206sim.h m520xsim.h m523xsim.h m5249sim.h \ m5272sim.h m527xsim.h m528xsim.h m5307sim.h m532xsim.h \ m5407sim.h m68360_enet.h m68360.h m68360_pram.h m68360_quicc.h \ m68360_regs.h MC68328.h MC68332.h MC68EZ328.h MC68VZ328.h \ mcfcache.h mcfdma.h mcfmbus.h mcfne.h mcfpci.h mcfpit.h \ mcfsim.h mcfsmc.h mcftimer.h mcfuart.h mcfwdebug.h \ nettel.h quicc_simple.h smp.h" FILES="atomic.h bitops.h bootinfo.h bug.h bugs.h byteorder.h cache.h \ cacheflush.h checksum.h current.h delay.h div64.h \ dma-mapping.h dma.h elf.h entry.h fb.h fpu.h hardirq.h hw_irq.h io.h \ irq.h kmap_types.h machdep.h mc146818rtc.h mmu.h mmu_context.h \ module.h page.h page_offset.h param.h pci.h pgalloc.h \ pgtable.h processor.h ptrace.h scatterlist.h segment.h \ setup.h sigcontext.h siginfo.h signal.h string.h system.h swab.h \ thread_info.h timex.h tlbflush.h traps.h uaccess.h ucontext.h \ unaligned.h unistd.h" mergefile() { BASE=${1%.h} git mv ${SOURCE}/$1 ${TARGET}/${BASE}_no.h git mv ${TARGET}/$1 ${TARGET}/${BASE}_mm.h cat << EOF > ${TARGET}/$1 EOF git add ${TARGET}/$1 } set -e mkdir -p ${TARGET} git mv include/asm-m68k/* ${TARGET} rmdir include/asm-m68k git rm ${SOURCE}/Kbuild for F in $INCLUDE $EQUAL; do git rm ${SOURCE}/$F done for F in $NOMUUFILES; do git mv ${SOURCE}/$F ${TARGET}/$F done for F in $FILES ; do mergefile $F done rmdir arch/m68knommu/include/asm rmdir arch/m68knommu/include Cc: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'include/asm-m68k/page.h')
-rw-r--r--include/asm-m68k/page.h228
1 files changed, 0 insertions, 228 deletions
diff --git a/include/asm-m68k/page.h b/include/asm-m68k/page.h
deleted file mode 100644
index a34b8bad7847..000000000000
--- a/include/asm-m68k/page.h
+++ /dev/null
@@ -1,228 +0,0 @@
1#ifndef _M68K_PAGE_H
2#define _M68K_PAGE_H
3
4#include <linux/const.h>
5
6/* PAGE_SHIFT determines the page size */
7#ifndef CONFIG_SUN3
8#define PAGE_SHIFT (12)
9#else
10#define PAGE_SHIFT (13)
11#endif
12#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
13#define PAGE_MASK (~(PAGE_SIZE-1))
14
15#include <asm/setup.h>
16
17#if PAGE_SHIFT < 13
18#define THREAD_SIZE (8192)
19#else
20#define THREAD_SIZE PAGE_SIZE
21#endif
22
23#ifndef __ASSEMBLY__
24
25#include <linux/compiler.h>
26
27#include <asm/module.h>
28
29#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
30#define free_user_page(page, addr) free_page(addr)
31
32/*
33 * We don't need to check for alignment etc.
34 */
35#ifdef CPU_M68040_OR_M68060_ONLY
36static inline void copy_page(void *to, void *from)
37{
38 unsigned long tmp;
39
40 __asm__ __volatile__("1:\t"
41 ".chip 68040\n\t"
42 "move16 %1@+,%0@+\n\t"
43 "move16 %1@+,%0@+\n\t"
44 ".chip 68k\n\t"
45 "dbra %2,1b\n\t"
46 : "=a" (to), "=a" (from), "=d" (tmp)
47 : "0" (to), "1" (from) , "2" (PAGE_SIZE / 32 - 1)
48 );
49}
50
51static inline void clear_page(void *page)
52{
53 unsigned long tmp;
54 unsigned long *sp = page;
55
56 *sp++ = 0;
57 *sp++ = 0;
58 *sp++ = 0;
59 *sp++ = 0;
60
61 __asm__ __volatile__("1:\t"
62 ".chip 68040\n\t"
63 "move16 %2@+,%0@+\n\t"
64 ".chip 68k\n\t"
65 "subqw #8,%2\n\t"
66 "subqw #8,%2\n\t"
67 "dbra %1,1b\n\t"
68 : "=a" (sp), "=d" (tmp)
69 : "a" (page), "0" (sp),
70 "1" ((PAGE_SIZE - 16) / 16 - 1));
71}
72
73#else
74#define clear_page(page) memset((page), 0, PAGE_SIZE)
75#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
76#endif
77
78#define clear_user_page(addr, vaddr, page) \
79 do { clear_page(addr); \
80 flush_dcache_page(page); \
81 } while (0)
82#define copy_user_page(to, from, vaddr, page) \
83 do { copy_page(to, from); \
84 flush_dcache_page(page); \
85 } while (0)
86
87/*
88 * These are used to make use of C type-checking..
89 */
90typedef struct { unsigned long pte; } pte_t;
91typedef struct { unsigned long pmd[16]; } pmd_t;
92typedef struct { unsigned long pgd; } pgd_t;
93typedef struct { unsigned long pgprot; } pgprot_t;
94typedef struct page *pgtable_t;
95
96#define pte_val(x) ((x).pte)
97#define pmd_val(x) ((&x)->pmd[0])
98#define pgd_val(x) ((x).pgd)
99#define pgprot_val(x) ((x).pgprot)
100
101#define __pte(x) ((pte_t) { (x) } )
102#define __pmd(x) ((pmd_t) { (x) } )
103#define __pgd(x) ((pgd_t) { (x) } )
104#define __pgprot(x) ((pgprot_t) { (x) } )
105
106#endif /* !__ASSEMBLY__ */
107
108#include <asm/page_offset.h>
109
110#define PAGE_OFFSET (PAGE_OFFSET_RAW)
111
112#ifndef __ASSEMBLY__
113
114extern unsigned long m68k_memoffset;
115
116#ifndef CONFIG_SUN3
117
118#define WANT_PAGE_VIRTUAL
119
120static inline unsigned long ___pa(void *vaddr)
121{
122 unsigned long paddr;
123 asm (
124 "1: addl #0,%0\n"
125 m68k_fixup(%c2, 1b+2)
126 : "=r" (paddr)
127 : "0" (vaddr), "i" (m68k_fixup_memoffset));
128 return paddr;
129}
130#define __pa(vaddr) ___pa((void *)(vaddr))
131static inline void *__va(unsigned long paddr)
132{
133 void *vaddr;
134 asm (
135 "1: subl #0,%0\n"
136 m68k_fixup(%c2, 1b+2)
137 : "=r" (vaddr)
138 : "0" (paddr), "i" (m68k_fixup_memoffset));
139 return vaddr;
140}
141
142#else /* !CONFIG_SUN3 */
143/* This #define is a horrible hack to suppress lots of warnings. --m */
144#define __pa(x) ___pa((unsigned long)(x))
145static inline unsigned long ___pa(unsigned long x)
146{
147 if(x == 0)
148 return 0;
149 if(x >= PAGE_OFFSET)
150 return (x-PAGE_OFFSET);
151 else
152 return (x+0x2000000);
153}
154
155static inline void *__va(unsigned long x)
156{
157 if(x == 0)
158 return (void *)0;
159
160 if(x < 0x2000000)
161 return (void *)(x+PAGE_OFFSET);
162 else
163 return (void *)(x-0x2000000);
164}
165#endif /* CONFIG_SUN3 */
166
167/*
168 * NOTE: virtual isn't really correct, actually it should be the offset into the
169 * memory node, but we have no highmem, so that works for now.
170 * TODO: implement (fast) pfn<->pgdat_idx conversion functions, this makes lots
171 * of the shifts unnecessary.
172 */
173#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT)
174#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
175
176extern int m68k_virt_to_node_shift;
177
178#ifdef CONFIG_SINGLE_MEMORY_CHUNK
179#define __virt_to_node(addr) (&pg_data_map[0])
180#else
181extern struct pglist_data *pg_data_table[];
182
183static inline __attribute_const__ int __virt_to_node_shift(void)
184{
185 int shift;
186
187 asm (
188 "1: moveq #0,%0\n"
189 m68k_fixup(%c1, 1b)
190 : "=d" (shift)
191 : "i" (m68k_fixup_vnode_shift));
192 return shift;
193}
194
195#define __virt_to_node(addr) (pg_data_table[(unsigned long)(addr) >> __virt_to_node_shift()])
196#endif
197
198#define virt_to_page(addr) ({ \
199 pfn_to_page(virt_to_pfn(addr)); \
200})
201#define page_to_virt(page) ({ \
202 pfn_to_virt(page_to_pfn(page)); \
203})
204
205#define pfn_to_page(pfn) ({ \
206 unsigned long __pfn = (pfn); \
207 struct pglist_data *pgdat; \
208 pgdat = __virt_to_node((unsigned long)pfn_to_virt(__pfn)); \
209 pgdat->node_mem_map + (__pfn - pgdat->node_start_pfn); \
210})
211#define page_to_pfn(_page) ({ \
212 struct page *__p = (_page); \
213 struct pglist_data *pgdat; \
214 pgdat = &pg_data_map[page_to_nid(__p)]; \
215 ((__p) - pgdat->node_mem_map) + pgdat->node_start_pfn; \
216})
217
218#define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
219#define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
220
221#endif /* __ASSEMBLY__ */
222
223#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
224 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
225
226#include <asm-generic/page.h>
227
228#endif /* _M68K_PAGE_H */
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