diff options
Diffstat (limited to 'nptl')
| -rw-r--r-- | nptl/ChangeLog | 9 | ||||
| -rw-r--r-- | nptl/pthreadP.h | 15 | ||||
| -rw-r--r-- | nptl/sysdeps/pthread/pthread.h | 28 |
3 files changed, 43 insertions, 9 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index d5eb9ea8dc..97ff78507b 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,4 +1,13 @@ 2013-07-02 Andi Kleen <ak@linux.intel.com> + + * pthreadP.h: Add elision types. + (PTHREAD_MUTEX_TYPE_ELISION): Add. + * sysdeps/pthread/pthread.h: Add elision initializers. + (PTHREAD_MUTEX_ELISION_NP, PTHREAD_MUTEX_NO_ELISION_NP, + PTHREAD_MUTEX_PSHARED_NP): Add new flags. + (__PTHREAD_SPINS): Add. + +2013-07-02 Andi Kleen <ak@linux.intel.com> Hongjiu Lu <hongjiu.lu@intel.com> * sysdeps/unix/sysv/linux/i386/lowlevellock.h (__lll_timedwait_tid, diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h index 7883fdfa10..e6b80bfd6e 100644 --- a/nptl/pthreadP.h +++ b/nptl/pthreadP.h @@ -61,6 +61,10 @@ enum { PTHREAD_MUTEX_KIND_MASK_NP = 3, + + PTHREAD_MUTEX_ELISION_NP = 256, + PTHREAD_MUTEX_NO_ELISION_NP = 512, + PTHREAD_MUTEX_ROBUST_NORMAL_NP = 16, PTHREAD_MUTEX_ROBUST_RECURSIVE_NP = PTHREAD_MUTEX_ROBUST_NORMAL_NP | PTHREAD_MUTEX_RECURSIVE_NP, @@ -93,12 +97,21 @@ enum PTHREAD_MUTEX_PP_ERRORCHECK_NP = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ERRORCHECK_NP, PTHREAD_MUTEX_PP_ADAPTIVE_NP - = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP + = PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP, + PTHREAD_MUTEX_ELISION_FLAGS_NP + = PTHREAD_MUTEX_ELISION_NP | PTHREAD_MUTEX_NO_ELISION_NP, + + PTHREAD_MUTEX_TIMED_ELISION_NP = + PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_ELISION_NP, + PTHREAD_MUTEX_TIMED_NO_ELISION_NP = + PTHREAD_MUTEX_TIMED_NP | PTHREAD_MUTEX_NO_ELISION_NP, }; #define PTHREAD_MUTEX_PSHARED_BIT 128 #define PTHREAD_MUTEX_TYPE(m) \ ((m)->__data.__kind & 127) +#define PTHREAD_MUTEX_TYPE_ELISION(m) \ + ((m)->__data.__kind & (127|PTHREAD_MUTEX_ELISION_FLAGS_NP)) #if LLL_PRIVATE == 0 && LLL_SHARED == 128 # define PTHREAD_MUTEX_PSHARED(m) \ diff --git a/nptl/sysdeps/pthread/pthread.h b/nptl/sysdeps/pthread/pthread.h index ded5ae59ff..61d534687f 100644 --- a/nptl/sysdeps/pthread/pthread.h +++ b/nptl/sysdeps/pthread/pthread.h @@ -83,27 +83,39 @@ enum /* Mutex initializers. */ +#if __PTHREAD_MUTEX_HAVE_ELISION == 1 /* 64bit layout. */ +#define __PTHREAD_SPINS 0, 0 +#elif __PTHREAD_MUTEX_HAVE_ELISION == 2 /* 32bit layout. */ +#define __PTHREAD_SPINS { 0, 0 } +#else +#define __PTHREAD_SPINS 0 +#endif + #ifdef __PTHREAD_MUTEX_HAVE_PREV # define PTHREAD_MUTEX_INITIALIZER \ - { { 0, 0, 0, 0, 0, 0, { 0, 0 } } } + { { 0, 0, 0, 0, 0, __PTHREAD_SPINS, { 0, 0 } } } # ifdef __USE_GNU # define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0, 0 } } } + { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __PTHREAD_SPINS, { 0, 0 } } } # define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0, 0 } } } + { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __PTHREAD_SPINS, { 0, 0 } } } # define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0, 0 } } } + { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __PTHREAD_SPINS, { 0, 0 } } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __PTHREAD_SPINS, { 0, 0 } } } + # endif #else # define PTHREAD_MUTEX_INITIALIZER \ - { { 0, 0, 0, 0, 0, { 0 } } } + { { 0, 0, 0, 0, 0, { __PTHREAD_SPINS } } } # ifdef __USE_GNU # define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0 } } } + { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { __PTHREAD_SPINS } } } # define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0 } } } + { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { __PTHREAD_SPINS } } } # define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ - { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0 } } } + { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { __PTHREAD_SPINS } } } + # endif #endif |