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authorAdrian Bunk <bunk@kernel.org>2008-07-24 00:28:50 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 13:47:24 -0400
commitf606ddf42fd4edc558eeb48bfee66d2c591571d2 (patch)
tree193f00db121201255b2629fce43b99a53c4ec735 /include/asm-v850/system.h
parent99764fa4ceeecba8b9e0a8a5565b418a2e94f83b (diff)
remove the v850 port
Trying to compile the v850 port brings many compile errors, one of them exists since at least kernel 2.6.19. There also seems to be noone willing to bring this port back into a usable state. This patch therefore removes the v850 port. If anyone ever decides to revive the v850 port the code will still be available from older kernels, and it wouldn't be impossible for the port to reenter the kernel if it would become actively maintained again. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-v850/system.h')
-rw-r--r--include/asm-v850/system.h123
1 files changed, 0 insertions, 123 deletions
diff --git a/include/asm-v850/system.h b/include/asm-v850/system.h
deleted file mode 100644
index 7daf1fdee119..000000000000
--- a/include/asm-v850/system.h
+++ /dev/null
@@ -1,123 +0,0 @@
1/*
2 * include/asm-v850/system.h -- Low-level interrupt/thread ops
3 *
4 * Copyright (C) 2001,02,03 NEC Electronics Corporation
5 * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
6 *
7 * This file is subject to the terms and conditions of the GNU General
8 * Public License. See the file COPYING in the main directory of this
9 * archive for more details.
10 *
11 * Written by Miles Bader <miles@gnu.org>
12 */
13
14#ifndef __V850_SYSTEM_H__
15#define __V850_SYSTEM_H__
16
17#include <linux/linkage.h>
18#include <asm/ptrace.h>
19
20
21/*
22 * switch_to(n) should switch tasks to task ptr, first checking that
23 * ptr isn't the current task, in which case it does nothing.
24 */
25struct thread_struct;
26extern void *switch_thread (struct thread_struct *last,
27 struct thread_struct *next);
28#define switch_to(prev,next,last) \
29 do { \
30 if (prev != next) { \
31 (last) = switch_thread (&prev->thread, &next->thread); \
32 } \
33 } while (0)
34
35
36/* Enable/disable interrupts. */
37#define local_irq_enable() __asm__ __volatile__ ("ei")
38#define local_irq_disable() __asm__ __volatile__ ("di")
39
40#define local_save_flags(flags) \
41 __asm__ __volatile__ ("stsr %1, %0" : "=r" (flags) : "i" (SR_PSW))
42#define local_restore_flags(flags) \
43 __asm__ __volatile__ ("ldsr %0, %1" :: "r" (flags), "i" (SR_PSW))
44
45/* For spinlocks etc */
46#define local_irq_save(flags) \
47 do { local_save_flags (flags); local_irq_disable (); } while (0)
48#define local_irq_restore(flags) \
49 local_restore_flags (flags);
50
51
52static inline int irqs_disabled (void)
53{
54 unsigned flags;
55 local_save_flags (flags);
56 return !!(flags & 0x20);
57}
58
59
60/*
61 * Force strict CPU ordering.
62 * Not really required on v850...
63 */
64#define nop() __asm__ __volatile__ ("nop")
65#define mb() __asm__ __volatile__ ("" ::: "memory")
66#define rmb() mb ()
67#define wmb() mb ()
68#define read_barrier_depends() ((void)0)
69#define set_mb(var, value) do { xchg (&var, value); } while (0)
70
71#define smp_mb() mb ()
72#define smp_rmb() rmb ()
73#define smp_wmb() wmb ()
74#define smp_read_barrier_depends() read_barrier_depends()
75
76#define xchg(ptr, with) \
77 ((__typeof__ (*(ptr)))__xchg ((unsigned long)(with), (ptr), sizeof (*(ptr))))
78
79static inline unsigned long __xchg (unsigned long with,
80 __volatile__ void *ptr, int size)
81{
82 unsigned long tmp, flags;
83
84 local_irq_save (flags);
85
86 switch (size) {
87 case 1:
88 tmp = *(unsigned char *)ptr;
89 *(unsigned char *)ptr = with;
90 break;
91 case 2:
92 tmp = *(unsigned short *)ptr;
93 *(unsigned short *)ptr = with;
94 break;
95 case 4:
96 tmp = *(unsigned long *)ptr;
97 *(unsigned long *)ptr = with;
98 break;
99 }
100
101 local_irq_restore (flags);
102
103 return tmp;
104}
105
106#include <asm-generic/cmpxchg-local.h>
107
108/*
109 * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
110 * them available.
111 */
112#define cmpxchg_local(ptr, o, n) \
113 ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
114 (unsigned long)(n), sizeof(*(ptr))))
115#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
116
117#ifndef CONFIG_SMP
118#include <asm-generic/cmpxchg.h>
119#endif
120
121#define arch_align_stack(x) (x)
122
123#endif /* __V850_SYSTEM_H__ */