diff options
| author | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-12-22 04:24:34 +0000 |
|---|---|---|
| committer | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-12-22 04:24:34 +0000 |
| commit | 06e7a0313a09ee812061d855a47206ed303eac7f (patch) | |
| tree | 73314d935e6aa06e60b533610dd034ab100a89ec /gcell/src/ibm/sync/spu_source/cond_init.h | |
| parent | 13b15589f0b98fbd13fa42c31dcfbe2674dd562c (diff) | |
Merged eb/gcell-wip2 rev 10130:10152 into trunk.
This makes several gcell related changes.
{{{
The first two are INCOMPATIBLE CHANGES:
(1) The gcell portion of the code base was reorganized. As part of that
reorganization, the paths to the include files changed. They are now
installed under PREFIX/include/gcell instead of directly in PREFIX/include.
This means that all includes of the form:
#include <gc_foo.h>
should be changed to
#include <gcell/gc_foo.h>
(2a) If you are directly using gcell-embedspu-libtool or the
$(GCELL_EMBEDSPU_LIBTOOL) variable in your Makefiles, the order of the
two command line arguments was switched. It's now
$(GCELL_EMBEDSPU_LIBTOOL) input_file output_file
or equivalently
$(GCELL_EMBEDSPU_LIBTOOL) $< $@
gcell-embedspu-libtool allows you to convert an SPE executable
into something that libtool will allow you add to a host shared library.
(2b) The name of the symbol created by gcell-embedspu-libtool is now
suffixed with _spx (SPE executable) to reduce the probability of name
collision. If you have lines like this:
extern spe_program_handle_t gcell_all;
in your code, you may have to change them to:
extern spe_program_handle_t gcell_all_spx;
The following changes are enhancements and shouldn't break any
existing code:
(3) We now install two new pkg-config files, gcell.pc and gcell_spu.pc.
These can be used to assist in building gcell code that lives outside
the GNU Radio repository. The first gives the include and library
paths for the PPE host code, the second is the same info for the the
SPE code.
There is also a new .m4 macro, GR_GCELL, contained in
config/gr_gcell.m4, that uses PKG_CONFIG_MODULES to fish out the
relevant variables. If you've got standalone code that uses gcell,
you'll probably want to copy this macro (along with our version of
pkg.m4) to your tree and use it. It sets the following variables:
GCELL_CFLAGS
GCELL_CPPFLAGS
GCELL_INCLUDEDIR
GCELL_LIBS
GCELL_SPU_CFLAGS
GCELL_SPU_CPPFLAGS
GCELL_SPU_INCLUDEDIR
GCELL_SPU_LIBS
GCELL_EMBEDSPU_LIBTOOL
(4) make -j now works in the gcell directory (fixes ticket:242).
}}}
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10153 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gcell/src/ibm/sync/spu_source/cond_init.h')
| -rw-r--r-- | gcell/src/ibm/sync/spu_source/cond_init.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/gcell/src/ibm/sync/spu_source/cond_init.h b/gcell/src/ibm/sync/spu_source/cond_init.h deleted file mode 100644 index 7202e53527..0000000000 --- a/gcell/src/ibm/sync/spu_source/cond_init.h +++ /dev/null @@ -1,127 +0,0 @@ -/* -------------------------------------------------------------- */ -/* (C)Copyright 2001,2007, */ -/* International Business Machines Corporation, */ -/* Sony Computer Entertainment, Incorporated, */ -/* Toshiba Corporation, */ -/* */ -/* All Rights Reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or */ -/* without modification, are permitted provided that the */ -/* following conditions are met: */ -/* */ -/* - Redistributions of source code must retain the above copyright*/ -/* notice, this list of conditions and the following disclaimer. */ -/* */ -/* - Redistributions in binary form must reproduce the above */ -/* copyright notice, this list of conditions and the following */ -/* disclaimer in the documentation and/or other materials */ -/* provided with the distribution. */ -/* */ -/* - Neither the name of IBM Corporation nor the names of its */ -/* contributors may be used to endorse or promote products */ -/* derived from this software without specific prior written */ -/* permission. */ -/* */ -/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND */ -/* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, */ -/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ -/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ -/* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR */ -/* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ -/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT */ -/* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ -/* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */ -/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */ -/* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR */ -/* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ -/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* -------------------------------------------------------------- */ -/* PROLOG END TAG zYx */ -#ifndef _SPU_COND_INIT_H_ -#define _SPU_COND_INIT_H_ - -#include "sync_utils.h" -#include "cond.h" -#include <spu_mfcio.h> - - -/** - * cond_init - initialize condition variable. - * @cond: handle to effective address of condition variable. - * - * - * Conditional Variable - is a synchronization device that allows - * SPE and PPE threads to suspend execution and relinquish the - * processors until some predicate on shared data is satisfied. - * The basic operations on conditions are: signal the condition - * (when the predicate becomes true), and wait for the condition, - * suspending the thread execution until anoter thread signals the - * condition - * - * A condition variable must always be associated with a mutex, to - * avoid the race condition where a thread prepares to wait on a - * condition variable and another thread signals the condition just - * before the first thread actually waits on it. - * - * cond_init initializes the condition variable cond. - * - * cond_signal restarts one of the threads that are waiting on the - * condition variable cond. If no threads are waiting on cond, nothing - * happens. If several threads are waiting on cond, exactly one - * is restarted, but it is not specified which - * - * cond_broadcast restarts all the threads that are waiting on the - * condition variable cond. Nothing happens if no threads are waiting - * on cond - * - * cond_wait atomically unlocks the mutex and waits for the condition - * variable cond to be signaled. The mutex must be lock locked by - * the calling thread on the entrance to cond_wait. Before returning - * to the calling thread, cond_wait re-acquires mutex. - * - * Only one thread initializes a condition variable. Usually, the - * PPE thread initializes a condidtion variable, however, a cond_init - * function is provided here for completeness - * - * Description: Initialize a cond variable to false. - */ -static __inline void _cond_init(cond_ea_t cond ) -{ - char _tmp[256]; - char *tmp = (char *) ALIGN(_tmp, 128); - volatile unsigned short *buf = (volatile unsigned short *) &tmp[0]; - unsigned int size = 128, tagid; - unsigned int offset; - addr64 ea64; - unsigned int oldtmask; - unsigned int tagmask; - - tagid = mfc_tag_reserve(); - - tagmask = 1 << (tagid & 31); - - ea64.ull = ALIGN128_EA(cond); - offset = OFFSET128_EA_U16(cond); - - MFC_DMA(buf, ea64, size, tagid & 31, MFC_GET_CMD); - oldtmask = spu_readch(MFC_RdTagMask); - spu_writech(MFC_WrTagMask, tagmask); - spu_writech(MFC_WrTagUpdate, MFC_TAG_UPDATE_ANY); - spu_readch(MFC_RdTagStat); - - /* this is still just one word. since buf is of type - * short, we fit both counts into one word. */ - buf[offset] = 0; - buf[offset+1] = 0; - MFC_DMA(buf, ea64, size, (tagid & 31), MFC_PUT_CMD); - spu_writech(MFC_WrTagMask, tagmask); - spu_writech(MFC_WrTagUpdate, MFC_TAG_UPDATE_ANY); - spu_readch(MFC_RdTagStat); - spu_writech(MFC_WrTagMask, oldtmask); - mfc_tag_release (tagid); -} - - - -#endif /* _SPU_COND_INIT_H_ */ |