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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-16 22:28:15 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-03-16 22:28:15 -0400
commit47455911674d65fba28d43f4135c28ee40c75bac (patch)
treebb109710af11a8e499e971a230fff7316cc49095 /include
parent5379058b718ac6354ba99cc74d10c28d632dc28a (diff)
parentf510aa3bdb095c5253f6bee9e0f5a3a9ac69ded4 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Kconfig: Move missplaced NR_CPUS default from SMTC to VSMP. [MIPS] Lockdep: Fix recursion bug. [MIPS] RTLX: Handle copy_*_user return values. [MIPS] RTLX: Protect rtlx_{read,write} with mutex. [MIPS] RTLX: Harden against compiler reordering and optimization. [MIPS] RTLX: Don't use volatile; it's fragile. [MIPS] Lasat: Downgrade 64-bit kernel from experimental to broken. [MIPS] Compat: Fix build if CONFIG_SYSVIPC is disabled. [CHAR] lcd: Fix two warnings. [MIPS] FPU ownership management & preemption fixes [MIPS] Check FCSR for pending interrupts, alternative version [MIPS] IP27, IP35: Fix warnings.
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/atomic.h40
-rw-r--r--include/asm-mips/bitops.h24
-rw-r--r--include/asm-mips/cpu-features.h3
-rw-r--r--include/asm-mips/cpu-info.h1
-rw-r--r--include/asm-mips/fpu.h54
-rw-r--r--include/asm-mips/mach-ip27/dma-coherence.h5
-rw-r--r--include/asm-mips/mach-ip32/dma-coherence.h5
-rw-r--r--include/asm-mips/rtlx.h4
-rw-r--r--include/asm-mips/system.h16
-rw-r--r--include/asm-mips/thread_info.h1
10 files changed, 96 insertions, 57 deletions
diff --git a/include/asm-mips/atomic.h b/include/asm-mips/atomic.h
index 8578869a8bcf..1ac50b6c47ad 100644
--- a/include/asm-mips/atomic.h
+++ b/include/asm-mips/atomic.h
@@ -79,9 +79,9 @@ static __inline__ void atomic_add(int i, atomic_t * v)
79 } else { 79 } else {
80 unsigned long flags; 80 unsigned long flags;
81 81
82 local_irq_save(flags); 82 raw_local_irq_save(flags);
83 v->counter += i; 83 v->counter += i;
84 local_irq_restore(flags); 84 raw_local_irq_restore(flags);
85 } 85 }
86} 86}
87 87
@@ -124,9 +124,9 @@ static __inline__ void atomic_sub(int i, atomic_t * v)
124 } else { 124 } else {
125 unsigned long flags; 125 unsigned long flags;
126 126
127 local_irq_save(flags); 127 raw_local_irq_save(flags);
128 v->counter -= i; 128 v->counter -= i;
129 local_irq_restore(flags); 129 raw_local_irq_restore(flags);
130 } 130 }
131} 131}
132 132
@@ -173,11 +173,11 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
173 } else { 173 } else {
174 unsigned long flags; 174 unsigned long flags;
175 175
176 local_irq_save(flags); 176 raw_local_irq_save(flags);
177 result = v->counter; 177 result = v->counter;
178 result += i; 178 result += i;
179 v->counter = result; 179 v->counter = result;
180 local_irq_restore(flags); 180 raw_local_irq_restore(flags);
181 } 181 }
182 182
183 smp_mb(); 183 smp_mb();
@@ -225,11 +225,11 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
225 } else { 225 } else {
226 unsigned long flags; 226 unsigned long flags;
227 227
228 local_irq_save(flags); 228 raw_local_irq_save(flags);
229 result = v->counter; 229 result = v->counter;
230 result -= i; 230 result -= i;
231 v->counter = result; 231 v->counter = result;
232 local_irq_restore(flags); 232 raw_local_irq_restore(flags);
233 } 233 }
234 234
235 smp_mb(); 235 smp_mb();
@@ -293,12 +293,12 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
293 } else { 293 } else {
294 unsigned long flags; 294 unsigned long flags;
295 295
296 local_irq_save(flags); 296 raw_local_irq_save(flags);
297 result = v->counter; 297 result = v->counter;
298 result -= i; 298 result -= i;
299 if (result >= 0) 299 if (result >= 0)
300 v->counter = result; 300 v->counter = result;
301 local_irq_restore(flags); 301 raw_local_irq_restore(flags);
302 } 302 }
303 303
304 smp_mb(); 304 smp_mb();
@@ -454,9 +454,9 @@ static __inline__ void atomic64_add(long i, atomic64_t * v)
454 } else { 454 } else {
455 unsigned long flags; 455 unsigned long flags;
456 456
457 local_irq_save(flags); 457 raw_local_irq_save(flags);
458 v->counter += i; 458 v->counter += i;
459 local_irq_restore(flags); 459 raw_local_irq_restore(flags);
460 } 460 }
461} 461}
462 462
@@ -499,9 +499,9 @@ static __inline__ void atomic64_sub(long i, atomic64_t * v)
499 } else { 499 } else {
500 unsigned long flags; 500 unsigned long flags;
501 501
502 local_irq_save(flags); 502 raw_local_irq_save(flags);
503 v->counter -= i; 503 v->counter -= i;
504 local_irq_restore(flags); 504 raw_local_irq_restore(flags);
505 } 505 }
506} 506}
507 507
@@ -548,11 +548,11 @@ static __inline__ long atomic64_add_return(long i, atomic64_t * v)
548 } else { 548 } else {
549 unsigned long flags; 549 unsigned long flags;
550 550
551 local_irq_save(flags); 551 raw_local_irq_save(flags);
552 result = v->counter; 552 result = v->counter;
553 result += i; 553 result += i;
554 v->counter = result; 554 v->counter = result;
555 local_irq_restore(flags); 555 raw_local_irq_restore(flags);
556 } 556 }
557 557
558 smp_mb(); 558 smp_mb();
@@ -600,11 +600,11 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
600 } else { 600 } else {
601 unsigned long flags; 601 unsigned long flags;
602 602
603 local_irq_save(flags); 603 raw_local_irq_save(flags);
604 result = v->counter; 604 result = v->counter;
605 result -= i; 605 result -= i;
606 v->counter = result; 606 v->counter = result;
607 local_irq_restore(flags); 607 raw_local_irq_restore(flags);
608 } 608 }
609 609
610 smp_mb(); 610 smp_mb();
@@ -668,12 +668,12 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
668 } else { 668 } else {
669 unsigned long flags; 669 unsigned long flags;
670 670
671 local_irq_save(flags); 671 raw_local_irq_save(flags);
672 result = v->counter; 672 result = v->counter;
673 result -= i; 673 result -= i;
674 if (result >= 0) 674 if (result >= 0)
675 v->counter = result; 675 v->counter = result;
676 local_irq_restore(flags); 676 raw_local_irq_restore(flags);
677 } 677 }
678 678
679 smp_mb(); 679 smp_mb();
diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h
index 8959da245cfb..d995413e11fd 100644
--- a/include/asm-mips/bitops.h
+++ b/include/asm-mips/bitops.h
@@ -100,9 +100,9 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
100 100
101 a += nr >> SZLONG_LOG; 101 a += nr >> SZLONG_LOG;
102 mask = 1UL << bit; 102 mask = 1UL << bit;
103 local_irq_save(flags); 103 raw_local_irq_save(flags);
104 *a |= mask; 104 *a |= mask;
105 local_irq_restore(flags); 105 raw_local_irq_restore(flags);
106 } 106 }
107} 107}
108 108
@@ -165,9 +165,9 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
165 165
166 a += nr >> SZLONG_LOG; 166 a += nr >> SZLONG_LOG;
167 mask = 1UL << bit; 167 mask = 1UL << bit;
168 local_irq_save(flags); 168 raw_local_irq_save(flags);
169 *a &= ~mask; 169 *a &= ~mask;
170 local_irq_restore(flags); 170 raw_local_irq_restore(flags);
171 } 171 }
172} 172}
173 173
@@ -220,9 +220,9 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
220 220
221 a += nr >> SZLONG_LOG; 221 a += nr >> SZLONG_LOG;
222 mask = 1UL << bit; 222 mask = 1UL << bit;
223 local_irq_save(flags); 223 raw_local_irq_save(flags);
224 *a ^= mask; 224 *a ^= mask;
225 local_irq_restore(flags); 225 raw_local_irq_restore(flags);
226 } 226 }
227} 227}
228 228
@@ -287,10 +287,10 @@ static inline int test_and_set_bit(unsigned long nr,
287 287
288 a += nr >> SZLONG_LOG; 288 a += nr >> SZLONG_LOG;
289 mask = 1UL << bit; 289 mask = 1UL << bit;
290 local_irq_save(flags); 290 raw_local_irq_save(flags);
291 retval = (mask & *a) != 0; 291 retval = (mask & *a) != 0;
292 *a |= mask; 292 *a |= mask;
293 local_irq_restore(flags); 293 raw_local_irq_restore(flags);
294 294
295 return retval; 295 return retval;
296 } 296 }
@@ -381,10 +381,10 @@ static inline int test_and_clear_bit(unsigned long nr,
381 381
382 a += nr >> SZLONG_LOG; 382 a += nr >> SZLONG_LOG;
383 mask = 1UL << bit; 383 mask = 1UL << bit;
384 local_irq_save(flags); 384 raw_local_irq_save(flags);
385 retval = (mask & *a) != 0; 385 retval = (mask & *a) != 0;
386 *a &= ~mask; 386 *a &= ~mask;
387 local_irq_restore(flags); 387 raw_local_irq_restore(flags);
388 388
389 return retval; 389 return retval;
390 } 390 }
@@ -452,10 +452,10 @@ static inline int test_and_change_bit(unsigned long nr,
452 452
453 a += nr >> SZLONG_LOG; 453 a += nr >> SZLONG_LOG;
454 mask = 1UL << bit; 454 mask = 1UL << bit;
455 local_irq_save(flags); 455 raw_local_irq_save(flags);
456 retval = (mask & *a) != 0; 456 retval = (mask & *a) != 0;
457 *a ^= mask; 457 *a ^= mask;
458 local_irq_restore(flags); 458 raw_local_irq_restore(flags);
459 459
460 return retval; 460 return retval;
461 } 461 }
diff --git a/include/asm-mips/cpu-features.h b/include/asm-mips/cpu-features.h
index eadca266f159..5e4bed123b48 100644
--- a/include/asm-mips/cpu-features.h
+++ b/include/asm-mips/cpu-features.h
@@ -40,6 +40,9 @@
40#endif 40#endif
41#ifndef cpu_has_fpu 41#ifndef cpu_has_fpu
42#define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU) 42#define cpu_has_fpu (current_cpu_data.options & MIPS_CPU_FPU)
43#define raw_cpu_has_fpu (raw_current_cpu_data.options & MIPS_CPU_FPU)
44#else
45#define raw_cpu_has_fpu cpu_has_fpu
43#endif 46#endif
44#ifndef cpu_has_32fpr 47#ifndef cpu_has_32fpr
45#define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR) 48#define cpu_has_32fpr (cpu_data[0].options & MIPS_CPU_32FPR)
diff --git a/include/asm-mips/cpu-info.h b/include/asm-mips/cpu-info.h
index 610d0cdeaa9e..22fe8453fcc7 100644
--- a/include/asm-mips/cpu-info.h
+++ b/include/asm-mips/cpu-info.h
@@ -87,6 +87,7 @@ struct cpuinfo_mips {
87 87
88extern struct cpuinfo_mips cpu_data[]; 88extern struct cpuinfo_mips cpu_data[];
89#define current_cpu_data cpu_data[smp_processor_id()] 89#define current_cpu_data cpu_data[smp_processor_id()]
90#define raw_current_cpu_data cpu_data[raw_smp_processor_id()]
90 91
91extern void cpu_probe(void); 92extern void cpu_probe(void);
92extern void cpu_report(void); 93extern void cpu_report(void);
diff --git a/include/asm-mips/fpu.h b/include/asm-mips/fpu.h
index efef843b93f0..4e12d1f9534f 100644
--- a/include/asm-mips/fpu.h
+++ b/include/asm-mips/fpu.h
@@ -27,11 +27,11 @@
27struct sigcontext; 27struct sigcontext;
28struct sigcontext32; 28struct sigcontext32;
29 29
30extern asmlinkage int (*save_fp_context)(struct sigcontext *sc); 30extern asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
31extern asmlinkage int (*restore_fp_context)(struct sigcontext *sc); 31extern asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
32 32
33extern asmlinkage int (*save_fp_context32)(struct sigcontext32 *sc); 33extern asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
34extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 *sc); 34extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
35 35
36extern void fpu_emulator_init_fpu(void); 36extern void fpu_emulator_init_fpu(void);
37extern void _init_fpu(void); 37extern void _init_fpu(void);
@@ -68,6 +68,8 @@ do { \
68 /* We don't care about the c0 hazard here */ \ 68 /* We don't care about the c0 hazard here */ \
69} while (0) 69} while (0)
70 70
71#define __fpu_enabled() (read_c0_status() & ST0_CU1)
72
71#define enable_fpu() \ 73#define enable_fpu() \
72do { \ 74do { \
73 if (cpu_has_fpu) \ 75 if (cpu_has_fpu) \
@@ -93,31 +95,47 @@ static inline int is_fpu_owner(void)
93 return cpu_has_fpu && __is_fpu_owner(); 95 return cpu_has_fpu && __is_fpu_owner();
94} 96}
95 97
96static inline void own_fpu(void) 98static inline void __own_fpu(void)
97{ 99{
98 if (cpu_has_fpu) { 100 __enable_fpu();
99 __enable_fpu(); 101 KSTK_STATUS(current) |= ST0_CU1;
100 KSTK_STATUS(current) |= ST0_CU1; 102 set_thread_flag(TIF_USEDFPU);
101 set_thread_flag(TIF_USEDFPU); 103}
104
105static inline void own_fpu(int restore)
106{
107 preempt_disable();
108 if (cpu_has_fpu && !__is_fpu_owner()) {
109 __own_fpu();
110 if (restore)
111 _restore_fp(current);
102 } 112 }
113 preempt_enable();
103} 114}
104 115
105static inline void lose_fpu(void) 116static inline void lose_fpu(int save)
106{ 117{
107 if (cpu_has_fpu) { 118 preempt_disable();
119 if (is_fpu_owner()) {
120 if (save)
121 _save_fp(current);
108 KSTK_STATUS(current) &= ~ST0_CU1; 122 KSTK_STATUS(current) &= ~ST0_CU1;
109 clear_thread_flag(TIF_USEDFPU); 123 clear_thread_flag(TIF_USEDFPU);
110 __disable_fpu(); 124 __disable_fpu();
111 } 125 }
126 preempt_enable();
112} 127}
113 128
114static inline void init_fpu(void) 129static inline void init_fpu(void)
115{ 130{
131 preempt_disable();
116 if (cpu_has_fpu) { 132 if (cpu_has_fpu) {
133 __own_fpu();
117 _init_fpu(); 134 _init_fpu();
118 } else { 135 } else {
119 fpu_emulator_init_fpu(); 136 fpu_emulator_init_fpu();
120 } 137 }
138 preempt_enable();
121} 139}
122 140
123static inline void save_fp(struct task_struct *tsk) 141static inline void save_fp(struct task_struct *tsk)
@@ -144,4 +162,18 @@ static inline fpureg_t *get_fpu_regs(struct task_struct *tsk)
144 return tsk->thread.fpu.fpr; 162 return tsk->thread.fpu.fpr;
145} 163}
146 164
165static inline void enable_fp_in_kernel(void)
166{
167 set_thread_flag(TIF_ALLOW_FP_IN_KERNEL);
168 /* make sure CU1 and FPU ownership are consistent */
169 if (!__is_fpu_owner() && __fpu_enabled())
170 __disable_fpu();
171}
172
173static inline void disable_fp_in_kernel(void)
174{
175 BUG_ON(!__is_fpu_owner() && __fpu_enabled());
176 clear_thread_flag(TIF_ALLOW_FP_IN_KERNEL);
177}
178
147#endif /* _ASM_FPU_H */ 179#endif /* _ASM_FPU_H */
diff --git a/include/asm-mips/mach-ip27/dma-coherence.h b/include/asm-mips/mach-ip27/dma-coherence.h
index 659816e200d4..3fdbbf68e952 100644
--- a/include/asm-mips/mach-ip27/dma-coherence.h
+++ b/include/asm-mips/mach-ip27/dma-coherence.h
@@ -18,7 +18,8 @@
18 18
19struct device; 19struct device;
20 20
21static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) 21static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
22 size_t size)
22{ 23{
23 dma_addr_t pa = dev_to_baddr(dev, virt_to_phys(addr)); 24 dma_addr_t pa = dev_to_baddr(dev, virt_to_phys(addr));
24 25
@@ -37,7 +38,7 @@ static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
37 return dma_addr & (0xffUL << 56); 38 return dma_addr & (0xffUL << 56);
38} 39}
39 40
40static void plat_unmap_dma_mem(dma_addr_t dma_addr) 41static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
41{ 42{
42} 43}
43 44
diff --git a/include/asm-mips/mach-ip32/dma-coherence.h b/include/asm-mips/mach-ip32/dma-coherence.h
index 950be17bbb86..c3f9a6a20eb0 100644
--- a/include/asm-mips/mach-ip32/dma-coherence.h
+++ b/include/asm-mips/mach-ip32/dma-coherence.h
@@ -26,7 +26,8 @@ struct device;
26 26
27#define RAM_OFFSET_MASK 0x3fffffffUL 27#define RAM_OFFSET_MASK 0x3fffffffUL
28 28
29static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) 29static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
30 size_t size)
30{ 31{
31 dma_addr_t pa = virt_to_phys(addr) & RAM_OFFSET_MASK; 32 dma_addr_t pa = virt_to_phys(addr) & RAM_OFFSET_MASK;
32 33
@@ -59,7 +60,7 @@ static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
59 return addr; 60 return addr;
60} 61}
61 62
62static void plat_unmap_dma_mem(dma_addr_t dma_addr) 63static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
63{ 64{
64} 65}
65 66
diff --git a/include/asm-mips/rtlx.h b/include/asm-mips/rtlx.h
index 59162f74a798..65778c890a62 100644
--- a/include/asm-mips/rtlx.h
+++ b/include/asm-mips/rtlx.h
@@ -23,8 +23,8 @@
23 23
24extern int rtlx_open(int index, int can_sleep); 24extern int rtlx_open(int index, int can_sleep);
25extern int rtlx_release(int index); 25extern int rtlx_release(int index);
26extern ssize_t rtlx_read(int index, void *buff, size_t count, int user); 26extern ssize_t rtlx_read(int index, void __user *buff, size_t count);
27extern ssize_t rtlx_write(int index, void *buffer, size_t count, int user); 27extern ssize_t rtlx_write(int index, const void __user *buffer, size_t count);
28extern unsigned int rtlx_read_poll(int index, int can_sleep); 28extern unsigned int rtlx_read_poll(int index, int can_sleep);
29extern unsigned int rtlx_write_poll(int index); 29extern unsigned int rtlx_write_poll(int index);
30 30
diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index 597a3743f6a1..290887077e44 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -121,10 +121,10 @@ static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
121 } else { 121 } else {
122 unsigned long flags; 122 unsigned long flags;
123 123
124 local_irq_save(flags); 124 raw_local_irq_save(flags);
125 retval = *m; 125 retval = *m;
126 *m = val; 126 *m = val;
127 local_irq_restore(flags); /* implies memory barrier */ 127 raw_local_irq_restore(flags); /* implies memory barrier */
128 } 128 }
129 129
130 smp_mb(); 130 smp_mb();
@@ -169,10 +169,10 @@ static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
169 } else { 169 } else {
170 unsigned long flags; 170 unsigned long flags;
171 171
172 local_irq_save(flags); 172 raw_local_irq_save(flags);
173 retval = *m; 173 retval = *m;
174 *m = val; 174 *m = val;
175 local_irq_restore(flags); /* implies memory barrier */ 175 raw_local_irq_restore(flags); /* implies memory barrier */
176 } 176 }
177 177
178 smp_mb(); 178 smp_mb();
@@ -250,11 +250,11 @@ static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old,
250 } else { 250 } else {
251 unsigned long flags; 251 unsigned long flags;
252 252
253 local_irq_save(flags); 253 raw_local_irq_save(flags);
254 retval = *m; 254 retval = *m;
255 if (retval == old) 255 if (retval == old)
256 *m = new; 256 *m = new;
257 local_irq_restore(flags); /* implies memory barrier */ 257 raw_local_irq_restore(flags); /* implies memory barrier */
258 } 258 }
259 259
260 smp_mb(); 260 smp_mb();
@@ -304,11 +304,11 @@ static inline unsigned long __cmpxchg_u64(volatile int * m, unsigned long old,
304 } else { 304 } else {
305 unsigned long flags; 305 unsigned long flags;
306 306
307 local_irq_save(flags); 307 raw_local_irq_save(flags);
308 retval = *m; 308 retval = *m;
309 if (retval == old) 309 if (retval == old)
310 *m = new; 310 *m = new;
311 local_irq_restore(flags); /* implies memory barrier */ 311 raw_local_irq_restore(flags); /* implies memory barrier */
312 } 312 }
313 313
314 smp_mb(); 314 smp_mb();
diff --git a/include/asm-mips/thread_info.h b/include/asm-mips/thread_info.h
index fbcda8204473..6cf05f4a4e7e 100644
--- a/include/asm-mips/thread_info.h
+++ b/include/asm-mips/thread_info.h
@@ -119,6 +119,7 @@ register struct thread_info *__current_thread_info __asm__("$28");
119#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ 119#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */
120#define TIF_MEMDIE 18 120#define TIF_MEMDIE 18
121#define TIF_FREEZE 19 121#define TIF_FREEZE 19
122#define TIF_ALLOW_FP_IN_KERNEL 20
122#define TIF_SYSCALL_TRACE 31 /* syscall trace active */ 123#define TIF_SYSCALL_TRACE 31 /* syscall trace active */
123 124
124#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) 125#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)