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-rw-r--r--arch/sparc/Makefile12
-rw-r--r--arch/sparc/kernel/entry.S2
-rw-r--r--arch/sparc/kernel/sclow.S2
-rw-r--r--arch/sparc/kernel/sparc_ksyms.c10
-rw-r--r--arch/sparc/lib/Makefile2
-rw-r--r--arch/sparc/lib/atomic32.c2
-rw-r--r--arch/sparc/lib/debuglocks.c202
-rw-r--r--arch/sparc/mm/hypersparc.S2
-rw-r--r--arch/sparc/mm/swift.S2
-rw-r--r--arch/sparc/mm/tsunami.S2
-rw-r--r--arch/sparc/mm/viking.S2
11 files changed, 8 insertions, 232 deletions
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 7b3bbaf083a6..dea48f6cff38 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -59,17 +59,7 @@ image tftpboot.img: vmlinux
59archclean: 59archclean:
60 $(Q)$(MAKE) $(clean)=$(boot) 60 $(Q)$(MAKE) $(clean)=$(boot)
61 61
62prepare: include/asm-$(ARCH)/asm_offsets.h 62CLEAN_FILES += arch/$(ARCH)/boot/System.map
63
64arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
65 include/config/MARKER
66
67include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
68 $(call filechk,gen-asm-offsets)
69
70CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h \
71 arch/$(ARCH)/kernel/asm-offsets.s \
72 arch/$(ARCH)/boot/System.map
73 63
74# Don't use tabs in echo arguments. 64# Don't use tabs in echo arguments.
75define archhelp 65define archhelp
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index b448166f5da9..03ecb4e4614e 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -17,7 +17,7 @@
17#include <asm/kgdb.h> 17#include <asm/kgdb.h>
18#include <asm/contregs.h> 18#include <asm/contregs.h>
19#include <asm/ptrace.h> 19#include <asm/ptrace.h>
20#include <asm/asm_offsets.h> 20#include <asm/asm-offsets.h>
21#include <asm/psr.h> 21#include <asm/psr.h>
22#include <asm/vaddrs.h> 22#include <asm/vaddrs.h>
23#include <asm/memreg.h> 23#include <asm/memreg.h>
diff --git a/arch/sparc/kernel/sclow.S b/arch/sparc/kernel/sclow.S
index 3a867fc19927..136e37c53d49 100644
--- a/arch/sparc/kernel/sclow.S
+++ b/arch/sparc/kernel/sclow.S
@@ -7,7 +7,7 @@
7 */ 7 */
8 8
9#include <asm/ptrace.h> 9#include <asm/ptrace.h>
10#include <asm/asm_offsets.h> 10#include <asm/asm-offsets.h>
11#include <asm/errno.h> 11#include <asm/errno.h>
12#include <asm/winmacro.h> 12#include <asm/winmacro.h>
13#include <asm/thread_info.h> 13#include <asm/thread_info.h>
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 5d974a2b735a..f84809333624 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -114,17 +114,7 @@ DOT_ALIAS2(unsigned, urem, unsigned, unsigned)
114/* used by various drivers */ 114/* used by various drivers */
115EXPORT_SYMBOL(sparc_cpu_model); 115EXPORT_SYMBOL(sparc_cpu_model);
116EXPORT_SYMBOL(kernel_thread); 116EXPORT_SYMBOL(kernel_thread);
117#ifdef CONFIG_DEBUG_SPINLOCK
118#ifdef CONFIG_SMP 117#ifdef CONFIG_SMP
119EXPORT_SYMBOL(_do_spin_lock);
120EXPORT_SYMBOL(_do_spin_unlock);
121EXPORT_SYMBOL(_spin_trylock);
122EXPORT_SYMBOL(_do_read_lock);
123EXPORT_SYMBOL(_do_read_unlock);
124EXPORT_SYMBOL(_do_write_lock);
125EXPORT_SYMBOL(_do_write_unlock);
126#endif
127#else
128// XXX find what uses (or used) these. 118// XXX find what uses (or used) these.
129EXPORT_SYMBOL(___rw_read_enter); 119EXPORT_SYMBOL(___rw_read_enter);
130EXPORT_SYMBOL(___rw_read_exit); 120EXPORT_SYMBOL(___rw_read_exit);
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 2296ff9dc47a..fa5006946062 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -9,5 +9,3 @@ lib-y := mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o memcpy.o memset.o \
9 strncpy_from_user.o divdi3.o udivdi3.o strlen_user.o \ 9 strncpy_from_user.o divdi3.o udivdi3.o strlen_user.o \
10 copy_user.o locks.o atomic.o atomic32.o bitops.o \ 10 copy_user.o locks.o atomic.o atomic32.o bitops.o \
11 lshrdi3.o ashldi3.o rwsem.o muldi3.o bitext.o 11 lshrdi3.o ashldi3.o rwsem.o muldi3.o bitext.o
12
13lib-$(CONFIG_DEBUG_SPINLOCK) += debuglocks.o
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index 19724c5800a7..2e64e8c3e8e5 100644
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -20,7 +20,7 @@ spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] = {
20 20
21#else /* SMP */ 21#else /* SMP */
22 22
23static spinlock_t dummy = SPIN_LOCK_UNLOCKED; 23static DEFINE_SPINLOCK(dummy);
24#define ATOMIC_HASH_SIZE 1 24#define ATOMIC_HASH_SIZE 1
25#define ATOMIC_HASH(a) (&dummy) 25#define ATOMIC_HASH(a) (&dummy)
26 26
diff --git a/arch/sparc/lib/debuglocks.c b/arch/sparc/lib/debuglocks.c
deleted file mode 100644
index fb182352782c..000000000000
--- a/arch/sparc/lib/debuglocks.c
+++ /dev/null
@@ -1,202 +0,0 @@
1/* $Id: debuglocks.c,v 1.11 2001/09/20 00:35:31 davem Exp $
2 * debuglocks.c: Debugging versions of SMP locking primitives.
3 *
4 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
5 * Copyright (C) 1998-99 Anton Blanchard (anton@progsoc.uts.edu.au)
6 */
7
8#include <linux/kernel.h>
9#include <linux/sched.h>
10#include <linux/threads.h> /* For NR_CPUS */
11#include <linux/spinlock.h>
12#include <asm/psr.h>
13#include <asm/system.h>
14
15#ifdef CONFIG_SMP
16
17/* Some notes on how these debugging routines work. When a lock is acquired
18 * an extra debugging member lock->owner_pc is set to the caller of the lock
19 * acquisition routine. Right before releasing a lock, the debugging program
20 * counter is cleared to zero.
21 *
22 * Furthermore, since PC's are 4 byte aligned on Sparc, we stuff the CPU
23 * number of the owner in the lowest two bits.
24 */
25
26#define STORE_CALLER(A) __asm__ __volatile__("mov %%i7, %0" : "=r" (A));
27
28static inline void show(char *str, spinlock_t *lock, unsigned long caller)
29{
30 int cpu = smp_processor_id();
31
32 printk("%s(%p) CPU#%d stuck at %08lx, owner PC(%08lx):CPU(%lx)\n",str,
33 lock, cpu, caller, lock->owner_pc & ~3, lock->owner_pc & 3);
34}
35
36static inline void show_read(char *str, rwlock_t *lock, unsigned long caller)
37{
38 int cpu = smp_processor_id();
39
40 printk("%s(%p) CPU#%d stuck at %08lx, owner PC(%08lx):CPU(%lx)\n", str,
41 lock, cpu, caller, lock->owner_pc & ~3, lock->owner_pc & 3);
42}
43
44static inline void show_write(char *str, rwlock_t *lock, unsigned long caller)
45{
46 int cpu = smp_processor_id();
47 int i;
48
49 printk("%s(%p) CPU#%d stuck at %08lx, owner PC(%08lx):CPU(%lx)", str,
50 lock, cpu, caller, lock->owner_pc & ~3, lock->owner_pc & 3);
51
52 for(i = 0; i < NR_CPUS; i++)
53 printk(" reader[%d]=%08lx", i, lock->reader_pc[i]);
54
55 printk("\n");
56}
57
58#undef INIT_STUCK
59#define INIT_STUCK 100000000
60
61void _do_spin_lock(spinlock_t *lock, char *str)
62{
63 unsigned long caller;
64 unsigned long val;
65 int cpu = smp_processor_id();
66 int stuck = INIT_STUCK;
67
68 STORE_CALLER(caller);
69
70again:
71 __asm__ __volatile__("ldstub [%1], %0" : "=r" (val) : "r" (&(lock->lock)));
72 if(val) {
73 while(lock->lock) {
74 if (!--stuck) {
75 show(str, lock, caller);
76 stuck = INIT_STUCK;
77 }
78 barrier();
79 }
80 goto again;
81 }
82 lock->owner_pc = (cpu & 3) | (caller & ~3);
83}
84
85int _spin_trylock(spinlock_t *lock)
86{
87 unsigned long val;
88 unsigned long caller;
89 int cpu = smp_processor_id();
90
91 STORE_CALLER(caller);
92
93 __asm__ __volatile__("ldstub [%1], %0" : "=r" (val) : "r" (&(lock->lock)));
94 if(!val) {
95 /* We got it, record our identity for debugging. */
96 lock->owner_pc = (cpu & 3) | (caller & ~3);
97 }
98 return val == 0;
99}
100
101void _do_spin_unlock(spinlock_t *lock)
102{
103 lock->owner_pc = 0;
104 barrier();
105 lock->lock = 0;
106}
107
108void _do_read_lock(rwlock_t *rw, char *str)
109{
110 unsigned long caller;
111 unsigned long val;
112 int cpu = smp_processor_id();
113 int stuck = INIT_STUCK;
114
115 STORE_CALLER(caller);
116
117wlock_again:
118 __asm__ __volatile__("ldstub [%1 + 3], %0" : "=r" (val) : "r" (&(rw->lock)));
119 if(val) {
120 while(rw->lock & 0xff) {
121 if (!--stuck) {
122 show_read(str, rw, caller);
123 stuck = INIT_STUCK;
124 }
125 barrier();
126 }
127 goto wlock_again;
128 }
129
130 rw->reader_pc[cpu] = caller;
131 barrier();
132 rw->lock++;
133}
134
135void _do_read_unlock(rwlock_t *rw, char *str)
136{
137 unsigned long caller;
138 unsigned long val;
139 int cpu = smp_processor_id();
140 int stuck = INIT_STUCK;
141
142 STORE_CALLER(caller);
143
144wlock_again:
145 __asm__ __volatile__("ldstub [%1 + 3], %0" : "=r" (val) : "r" (&(rw->lock)));
146 if(val) {
147 while(rw->lock & 0xff) {
148 if (!--stuck) {
149 show_read(str, rw, caller);
150 stuck = INIT_STUCK;
151 }
152 barrier();
153 }
154 goto wlock_again;
155 }
156
157 rw->reader_pc[cpu] = 0;
158 barrier();
159 rw->lock -= 0x1ff;
160}
161
162void _do_write_lock(rwlock_t *rw, char *str)
163{
164 unsigned long caller;
165 unsigned long val;
166 int cpu = smp_processor_id();
167 int stuck = INIT_STUCK;
168
169 STORE_CALLER(caller);
170
171wlock_again:
172 __asm__ __volatile__("ldstub [%1 + 3], %0" : "=r" (val) : "r" (&(rw->lock)));
173 if(val) {
174wlock_wait:
175 while(rw->lock) {
176 if (!--stuck) {
177 show_write(str, rw, caller);
178 stuck = INIT_STUCK;
179 }
180 barrier();
181 }
182 goto wlock_again;
183 }
184
185 if (rw->lock & ~0xff) {
186 *(((unsigned char *)&rw->lock)+3) = 0;
187 barrier();
188 goto wlock_wait;
189 }
190
191 barrier();
192 rw->owner_pc = (cpu & 3) | (caller & ~3);
193}
194
195void _do_write_unlock(rwlock_t *rw)
196{
197 rw->owner_pc = 0;
198 barrier();
199 rw->lock = 0;
200}
201
202#endif /* SMP */
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
index 54b8e764b042..a231cca37216 100644
--- a/arch/sparc/mm/hypersparc.S
+++ b/arch/sparc/mm/hypersparc.S
@@ -6,7 +6,7 @@
6 6
7#include <asm/ptrace.h> 7#include <asm/ptrace.h>
8#include <asm/psr.h> 8#include <asm/psr.h>
9#include <asm/asm_offsets.h> 9#include <asm/asm-offsets.h>
10#include <asm/asi.h> 10#include <asm/asi.h>
11#include <asm/page.h> 11#include <asm/page.h>
12#include <asm/pgtsrmmu.h> 12#include <asm/pgtsrmmu.h>
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
index 2dcaa5ac1a38..cd90f3fdc4e7 100644
--- a/arch/sparc/mm/swift.S
+++ b/arch/sparc/mm/swift.S
@@ -9,7 +9,7 @@
9#include <asm/asi.h> 9#include <asm/asi.h>
10#include <asm/page.h> 10#include <asm/page.h>
11#include <asm/pgtsrmmu.h> 11#include <asm/pgtsrmmu.h>
12#include <asm/asm_offsets.h> 12#include <asm/asm-offsets.h>
13 13
14 .text 14 .text
15 .align 4 15 .align 4
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S
index 8acd1787fde2..697af617594a 100644
--- a/arch/sparc/mm/tsunami.S
+++ b/arch/sparc/mm/tsunami.S
@@ -6,7 +6,7 @@
6 6
7#include <linux/config.h> 7#include <linux/config.h>
8#include <asm/ptrace.h> 8#include <asm/ptrace.h>
9#include <asm/asm_offsets.h> 9#include <asm/asm-offsets.h>
10#include <asm/psr.h> 10#include <asm/psr.h>
11#include <asm/asi.h> 11#include <asm/asi.h>
12#include <asm/page.h> 12#include <asm/page.h>
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
index f58712d26bf5..3cbd6de18dde 100644
--- a/arch/sparc/mm/viking.S
+++ b/arch/sparc/mm/viking.S
@@ -9,7 +9,7 @@
9#include <linux/config.h> 9#include <linux/config.h>
10#include <asm/ptrace.h> 10#include <asm/ptrace.h>
11#include <asm/psr.h> 11#include <asm/psr.h>
12#include <asm/asm_offsets.h> 12#include <asm/asm-offsets.h>
13#include <asm/asi.h> 13#include <asm/asi.h>
14#include <asm/mxcc.h> 14#include <asm/mxcc.h>
15#include <asm/page.h> 15#include <asm/page.h>