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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 /arch/m68knommu/include/asm/atomic.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 'arch/m68knommu/include/asm/atomic.h')
-rw-r--r--arch/m68knommu/include/asm/atomic.h155
1 files changed, 0 insertions, 155 deletions
diff --git a/arch/m68knommu/include/asm/atomic.h b/arch/m68knommu/include/asm/atomic.h
deleted file mode 100644
index 6bb674855a3f..000000000000
--- a/arch/m68knommu/include/asm/atomic.h
+++ /dev/null
@@ -1,155 +0,0 @@
1#ifndef __ARCH_M68KNOMMU_ATOMIC__
2#define __ARCH_M68KNOMMU_ATOMIC__
3
4#include <linux/types.h>
5#include <asm/system.h>
6
7/*
8 * Atomic operations that C can't guarantee us. Useful for
9 * resource counting etc..
10 */
11
12/*
13 * We do not have SMP m68k systems, so we don't have to deal with that.
14 */
15
16#define ATOMIC_INIT(i) { (i) }
17
18#define atomic_read(v) ((v)->counter)
19#define atomic_set(v, i) (((v)->counter) = i)
20
21static __inline__ void atomic_add(int i, atomic_t *v)
22{
23#ifdef CONFIG_COLDFIRE
24 __asm__ __volatile__("addl %1,%0" : "+m" (*v) : "d" (i));
25#else
26 __asm__ __volatile__("addl %1,%0" : "+m" (*v) : "di" (i));
27#endif
28}
29
30static __inline__ void atomic_sub(int i, atomic_t *v)
31{
32#ifdef CONFIG_COLDFIRE
33 __asm__ __volatile__("subl %1,%0" : "+m" (*v) : "d" (i));
34#else
35 __asm__ __volatile__("subl %1,%0" : "+m" (*v) : "di" (i));
36#endif
37}
38
39static __inline__ int atomic_sub_and_test(int i, atomic_t * v)
40{
41 char c;
42#ifdef CONFIG_COLDFIRE
43 __asm__ __volatile__("subl %2,%1; seq %0"
44 : "=d" (c), "+m" (*v)
45 : "d" (i));
46#else
47 __asm__ __volatile__("subl %2,%1; seq %0"
48 : "=d" (c), "+m" (*v)
49 : "di" (i));
50#endif
51 return c != 0;
52}
53
54static __inline__ void atomic_inc(volatile atomic_t *v)
55{
56 __asm__ __volatile__("addql #1,%0" : "+m" (*v));
57}
58
59/*
60 * atomic_inc_and_test - increment and test
61 * @v: pointer of type atomic_t
62 *
63 * Atomically increments @v by 1
64 * and returns true if the result is zero, or false for all
65 * other cases.
66 */
67
68static __inline__ int atomic_inc_and_test(volatile atomic_t *v)
69{
70 char c;
71 __asm__ __volatile__("addql #1,%1; seq %0" : "=d" (c), "+m" (*v));
72 return c != 0;
73}
74
75static __inline__ void atomic_dec(volatile atomic_t *v)
76{
77 __asm__ __volatile__("subql #1,%0" : "+m" (*v));
78}
79
80static __inline__ int atomic_dec_and_test(volatile atomic_t *v)
81{
82 char c;
83 __asm__ __volatile__("subql #1,%1; seq %0" : "=d" (c), "+m" (*v));
84 return c != 0;
85}
86
87static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
88{
89 __asm__ __volatile__("andl %1,%0" : "+m" (*v) : "id" (~(mask)));
90}
91
92static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
93{
94 __asm__ __volatile__("orl %1,%0" : "+m" (*v) : "id" (mask));
95}
96
97/* Atomic operations are already serializing */
98#define smp_mb__before_atomic_dec() barrier()
99#define smp_mb__after_atomic_dec() barrier()
100#define smp_mb__before_atomic_inc() barrier()
101#define smp_mb__after_atomic_inc() barrier()
102
103static inline int atomic_add_return(int i, atomic_t * v)
104{
105 unsigned long temp, flags;
106
107 local_irq_save(flags);
108 temp = *(long *)v;
109 temp += i;
110 *(long *)v = temp;
111 local_irq_restore(flags);
112
113 return temp;
114}
115
116#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
117
118static inline int atomic_sub_return(int i, atomic_t * v)
119{
120 unsigned long temp, flags;
121
122 local_irq_save(flags);
123 temp = *(long *)v;
124 temp -= i;
125 *(long *)v = temp;
126 local_irq_restore(flags);
127
128 return temp;
129}
130
131#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
132#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
133
134static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
135{
136 int c, old;
137 c = atomic_read(v);
138 for (;;) {
139 if (unlikely(c == (u)))
140 break;
141 old = atomic_cmpxchg((v), c, c + (a));
142 if (likely(old == c))
143 break;
144 c = old;
145 }
146 return c != (u);
147}
148
149#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
150
151#define atomic_dec_return(v) atomic_sub_return(1,(v))
152#define atomic_inc_return(v) atomic_add_return(1,(v))
153
154#include <asm-generic/atomic.h>
155#endif /* __ARCH_M68KNOMMU_ATOMIC __ */