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2019-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r267494
2018-01-03Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r256169
2017-01-01Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r243994
2016-01-04Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r232055
2015-01-05Update copyright years.Jakub Jelinek1-1/+1
From-SVN: r219188
2014-01-02Update copyright years in libitm/Richard Sandiford1-1/+1
From-SVN: r206298
2013-02-03Update copyright in libitm.Richard Sandiford1-1/+1
From-SVN: r195697
2012-11-09Add HTM fastpath and use Intel RTM for it on x86.Torvald Riegel1-2/+15
* beginend.cc (htm_fastpath): New. (gtm_thread::begin_transaction, _ITM_commitTransaction, _ITM_commitTransactionEH): Add HTM fastpath handling. * config/linux/rwlock.h (gtm_rwlock.is_write_locked): New. * config/posix/rwlock.h (gtm_rwlock.is_write_locked): New. * config/x86/target.h (htm_available, htm_init, htm_begin_success, htm_begin, htm_commit, htm_abort, htm_abort_should_retry): New. * configure.tgt: Add -mrtm to XCFLAGS. * method-serial.cc (htm_mg, o_htm_mg, htm_dispatch, dispatch_htm): New. (gtm_thread::serialirr_mode): Add HTM fastpath handling. * libitm_i.h (htm_fastpath, dispatch_htm): Declare. * retry.cc (parse_default_method): Add HTM method parsing. (gtm_thread::number_of_threads_changed): Use HTM by default if available. From-SVN: r193369
2012-10-24Ask dispatch whether it requires serial mode.Torvald Riegel1-5/+2
* retry.cc (gtm_thread::decide_begin_dispatch): Ask dispatch whether it requires serial mode instead of assuming that for certain dispatchs. * dispatch.h (abi_dispatch::requires_serial): New. (abi_dispatch::abi_dispatch): Adapt. * method-gl.cc (gl_wt_dispatch::gl_wt_dispatch): Adapt. * method-ml.cc (ml_wt_dispatch::ml_wt_dispatch): Same. * method-serial.cc (serialirr_dispatch::serialirr_dispatch, serial_dispatch::serial_dispatch, serialirr_onwrite_dispatch::serialirr_onwrite_dispatch): Same. From-SVN: r192777
2012-02-24libitm: Use ml_wt as default TM methods for >1 thread.Torvald Riegel1-1/+1
libitm/ * retry.cc (GTM::gtm_thread::number_of_threads_changed): Change default dispatch for more than 1 thread to ml_wt. From-SVN: r184547
2012-02-20libitm: Fix race condition in dispatch choice at transaction begin.Torvald Riegel1-30/+84
libitm/ * beginend.cc (GTM::gtm_thread::begin_transaction): Move serial lock acquisition to ... * retry.cc (GTM::gtm_thread::decide_begin_dispatch): ... here. (default_dispatch): Make atomic. (GTM::gtm_thread::set_default_dispatch): Access atomically. (GTM::gtm_thread::decide_retry_strategy): Access atomically and use decide_begin_dispatch() if default_dispatch might have changed. (GTM::gtm_thread::number_of_threads_changed): Initialize default_dispatch here. From-SVN: r184392
2012-02-14libitm: Add multi-lock, write-through TM method.Torvald Riegel1-0/+5
libitm/ * libitm_i.h (GTM::gtm_rwlog_entry): New. (GTM::gtm_thread): Add read and write logs. (GTM::dispatch_ml_wt): Declare. * retry.cc (parse_default_method): Support ml_wt. * method-ml.cc: New file. * Makefile.am: Add method-ml.cc. * Makefile.in: Regenerate. From-SVN: r184212
2012-02-14libitm: Improve method reinit and choice.Torvald Riegel1-13/+14
libitm/ * dispatch.h (GTM::abi_dispatch::supports): New. (GTM::method_group::reinit): New. * retry.cc (GTM::gtm_thread::decide_retry_strategy): Use reinit(). (GTM::gtm_thread::number_of_threads_changed): Check that the method supports the current situation. From-SVN: r184211
2011-11-08Merge from transactional-memory branch.Aldy Hernandez1-0/+265
From-SVN: r181154
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