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* 2011-10-07 Daniel Hellstrom <daniel@gaisler.com>Joel Sherrill2011-10-071-11/+11
| | | | | | | | | | | | | PR 1932/cpukit * cpu_asm.S: At some point the interrupt trap handler causes a window-overflow and the window overflow trap handler crashes when writing to 0. I found that this is because the WIM was bad, to the window overflow handler uses a uninitialized stack pointer in a window never used. * g3=CWP, not WIM * CWP is incremented by done_flushing no need doing that here also * I see no reason to create an additional stack frame (save) * Must turn off traps when updating WIM (maybe already done by caller?)
* 2011-03-16 Jennifer Averett <jennifer.averett@OARcorp.com>Joel Sherrill2011-03-161-523/+22
| | | | | | | | | | | | | | | | | | | | | | PR 1729/cpukit * configure.ac, sapi/include/confdefs.h, sapi/src/exinit.c, score/Makefile.am, score/preinstall.am, score/cpu/i386/rtems/score/cpu.h, score/cpu/sparc/cpu_asm.S, score/cpu/sparc/rtems/score/cpu.h, score/include/rtems/score/basedefs.h, score/include/rtems/score/context.h, score/include/rtems/score/percpu.h, score/src/percpu.c, score/src/thread.c, score/src/threadcreateidle.c: Add next step in SMP support. This adds an allocated array of the Per_CPU structures to support multiple cpus vs a single instance of the structure which is still used if SMP support is disabled. Configuration support is also added to explicitly enable or disable SMP. But SMP can only be enabled for the CPUs which will support it initially -- SPARC and i386. With the stub BSP support, a BSP can be run as a single core SMP system from an RTEMS data structure standpoint. * aclocal/check-smp.m4, aclocal/enable-smp.m4, score/include/rtems/bspsmp.h, score/include/rtems/score/smplock.h, score/src/smp.c, score/src/smplock.c: New files.
* 2010-06-28 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2010-06-291-48/+21
| | | | | | | | PR 1573/cpukit * cpu_asm.S, rtems/score/cpu.h: Add a per cpu data structure which contains the information required by RTEMS for each CPU core. This encapsulates information such as thread executing, heir, idle and dispatch needed.
* 2010-03-27 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2010-03-271-0/+4
| | | | * cpu.c, cpu_asm.S: Add include of config.h
* Whitespace removal.Ralf Corsepius2009-12-021-24/+24
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* 2009-03-12 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill2009-03-121-4/+4
| | | | | | | | PR 1385/cpukit * cpu_asm.S: When the type rtems_boolean was switched to the C99 bool, the size changed from 4 bytes to 1 byte. The interrupt dispatching code accesses two boolean variables for scheduling purposes and the assembly implementations of this code did not get updated.
* Fix date.Joel Sherrill2008-05-061-1/+1
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* 2007-05-10 Joel Sherrill <joel.sherrill@OARcorp.com>Joel Sherrill2007-05-101-5/+75
| | | | | | | | PR 1237/rtems * cpu.c, cpu_asm.S, rtems/score/cpu.h: Add logic to prevent stack creep when interrupts occur at a sufficient rate that the interrupted thread never gets to clean its stack. This patch ensures that an interrupted thread will not nest ISR dispatches on its stack.
* 2006-11-14 Jiri Gaisler <jiri@gaisler.com>Joel Sherrill2006-11-141-0/+5
| | | | * cpu_asm.S: Properly support synchronous traps.
* 2004-04-01 Ralf Corsepius <ralf_corsepius@rtems.org>Ralf Corsepius2004-04-011-1/+1
| | | | * cpu_asm.S: Include <rtems/asm.h> instead of <asm.h>.
* 2004-02-26 Andreas Karlsson <andreas.karlsson@space.se>Joel Sherrill2004-02-261-0/+11
| | | | | * cpu_asm.S: Close window while restoring interrupted task state which resulted in CWP corruption.
* 2003-09-04 Joel Sherrill <joel@OARcorp.com>Joel Sherrill2003-09-041-1/+1
| | | | | * cpu.c, cpu_asm.S, rtems/score/cpu.h, rtems/score/sparc.h, rtems/score/types.h: URL for license changed.
* 2001-09-27 Jiri Gaisler <jiri@gaisler.com>Joel Sherrill2001-09-271-4/+4
| | | | | | * cpu_asm.S: Small patch to fix a bug in the rtems sparc port. The bug has been there all the time, but only hits the leon bsp since the leon cpu has a 5-stage pipeline (erc32 has 4 stages).
* 2001-01-03 Joel Sherrill <joel@OARcorp.com>Joel Sherrill2001-01-031-1/+1
| | | | | | * rtems/score/cpu.h: Added _CPU_Initialize_vectors(). * cpu_asm.S: Modify to properly dereference _ISR_Vector_table now that it is dynamically allocated.
* 2000-11-21 Jiri Gaisler <jgais@ws.estec.esa.nl>Joel Sherrill2000-11-211-3/+10
| | | | * cpu_asm.S: Fix for CPUs with FPU revision B or C.
* Reworked score/cpu/sparc so it can be safely compiled multilib. AllJoel Sherrill2000-07-111-7/+0
| | | | | | routines and structures that require CPU model specific information are now in libcpu. This primarily required moving erc32 specific information from score/cpu files to libcpu/sparc and the erc32 BSP.
* Updated copyright notice.Joel Sherrill1999-11-171-2/+1
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* Patch from Jiri Gaisler <jgais@ws.estec.esa.nl>:Joel Sherrill1999-07-091-3/+71
| | | | | | + interrupt masking correction + FPU rev.B workaround + minor erc32 related fixes
* Patch from Jiri Gaisler <jgais@ce.chalmers.se>:Joel Sherrill1999-01-191-0/+2
| | | | | | | | getting the spurious trap handling to work required a couple more fixes - I have attached a patch against rtems-4.0.0 with the necessary changes. I also added functionality so that the address of the trapped instruction is reported and in case of a data access error, the data address is also reported.
* Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> to rename allJoel Sherrill1998-12-141-0/+726
.s files to .S in conformance with GNU conventions. This is a minor step along the way to supporting automake.
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