CRIS v10: Cleanup kernel/entry.S CVS log and id.

arch/cris/arch-v10/kernel/entry.S

-/* $Id: entry.S,v 1.28 2005/06/20 05:06:30 starvik Exp $
- *
+/*
  *  linux/arch/cris/entry.S
  *
  *  Copyright (C) 2000, 2001, 2002 Axis Communications AB
  *
  *  Authors:	Bjorn Wesen (bjornw@axis.com)
- *
- *  $Log: entry.S,v $
- *  Revision 1.28  2005/06/20 05:06:30  starvik
- *  Remove unnecessary diff to kernel.org tree
- *
- *  Revision 1.27  2005/03/04 08:16:16  starvik
- *  Merge of Linux 2.6.11.
- *
- *  Revision 1.26  2005/01/11 13:49:47  starvik
- *  Added NMI handler.
- *
- *  Revision 1.25  2004/12/27 11:18:32  starvik
- *  Merge of Linux 2.6.10 (not functional yet).
- *
- *  Revision 1.24  2004/12/22 10:41:23  starvik
- *  Updates to make v10 compile with the latest SMP aware generic code (even
- *  though v10 will never have SMP).
- *
- *  Revision 1.23  2004/10/19 13:07:37  starvik
- *  Merge of Linux 2.6.9
- *
- *  Revision 1.22  2004/06/21 10:29:55  starvik
- *  Merge of Linux 2.6.7
- *
- *  Revision 1.21  2004/06/09 05:30:27  starvik
- *  Clean up multiple interrupt handling.
- *    Prevent interrupts from interrupting each other.
- *    Handle all active interrupts.
- *
- *  Revision 1.20  2004/06/08 08:55:32  starvik
- *  Removed unused code
- *
- *  Revision 1.19  2004/06/04 11:56:15  starvik
- *  Implemented page table lookup for refills in assembler for improved performance.
- *
- *  Revision 1.18  2004/05/11 12:28:25  starvik
- *  Merge of Linux 2.6.6
- *
- *  Revision 1.17  2003/09/11 07:29:49  starvik
- *  Merge of Linux 2.6.0-test5
- *
- *  Revision 1.16  2003/07/04 08:27:41  starvik
- *  Merge of Linux 2.5.74
- *
- *  Revision 1.15  2003/04/09 07:32:55  starvik
- *  resume should return task_struct, not thread_info
- *
- *  Revision 1.14  2003/04/09 05:20:44  starvik
- *  Merge of Linux 2.5.67
- *
- *  Revision 1.13  2002/12/11 15:42:02  starvik
- *  Extracted v10 (ETRAX 100LX) specific stuff from arch/cris/kernel/*.c
- *
- *  Revision 1.12  2002/12/10 09:00:10  starvik
- *  Merge of Linux 2.5.51
- *
- *  Revision 1.11  2002/12/05 07:53:10  starvik
- *  Corrected constants used with btstq
- *
- *  Revision 1.10  2002/11/27 08:45:10  starvik
- *  pid is in task_struct, not thread_info
- *
- *  Revision 1.9  2002/11/26 09:52:05  starvik
- *  Added preemptive kernel scheduling (if CONFIG_PREEMPT)
- *
- *  Revision 1.8  2002/11/20 11:56:11  starvik
- *  Merge of Linux 2.5.48
- *
- *  Revision 1.7  2002/11/18 13:02:42  starvik
- *  Added fourth parameter to do_notify_resume
- *  Minor cleanup
- *
- *  Revision 1.6  2002/11/11 10:37:50  starvik
- *  Use new asm-offset defines
- *  Modified for new location of current->work etc
- *  Removed SYMBOL_NAME from syscalls
- *  Added some new syscalls
- *
- *  Revision 1.5  2002/11/05 06:45:11  starvik
- *  Merge of Linux 2.5.45
- *
- *  Revision 1.4  2002/02/05 15:41:31  bjornw
- *  Rewritten to conform better to current 2.5 code (similar to arch/i386)
- *
- *  Revision 1.3  2002/01/21 15:22:20  bjornw
- *  NICE_DOGGY fix from 2.4 arch/cris
- *
- *  Revision 1.37  2001/12/07 17:03:55  bjornw
- *  Call a c-hook called watchdog_bite_hook instead of show_registers directly
- *
- *  Revision 1.36  2001/11/22 13:36:36  bjornw
- *  * In ret_from_intr, check regs->dccr for usermode reentrance instead of
- *    DCCR explicitly (because the latter might not reflect current reality)
- *  * In mmu_bus_fault, set $r9 _after_ calling the C-code instead of before
- *    since $r9 is call-clobbered and is potentially needed afterwards
- *
- *  Revision 1.35  2001/10/30 17:10:15  bjornw
- *  Add some syscalls
- *
- *  Revision 1.34  2001/10/01 14:45:03  bjornw
- *  Removed underscores and added register prefixes
- *
- *  Revision 1.33  2001/08/21 13:48:01  jonashg
- *  Added fix by HP to avoid oops when doing a hard_reset_now.
- *
- *  Revision 1.32  2001/08/14 04:32:02  hp
- *  In _resume, add comment why R9 is saved; don't sound like it's call-saved.
- *
- *  Revision 1.31  2001/07/25 16:07:42  bjornw
- *  softirq_active/mask -> softirq_pending only
- *
- *  Revision 1.30  2001/07/05 01:03:32  hp
- *  - include asm/errno.h to get ENOSYS.
- *  - Use ENOSYS, not local constant LENOSYS; tweak comments.
- *  - Explain why .include, not #include is used.
- *  - Make oops-register-dump if watchdog bits and it's not expected.
- *  - Don't jsr, use jump _hard_reset_now, and skip spurious nop.
- *  - Use correct section attribute for section .rodata.
- *  - Adjust sys_ni_syscall fill number.
- *
- *  Revision 1.29  2001/06/25 14:07:00  hp
- *  	Fix review comment.
- *  	* head.S: Use IO_STATE, IO_FIELD and IO_MASK constructs instead of
- *  	magic numbers.  Add comment that -traditional must not be used.
- *  	* entry.S (SYMBOL_NAME): Change redefinition to use ## concatenation.
- *  	Correct and update comment.
- *  	* Makefile (.S.o): Don't use -traditional.  Add comment why the
- *  	toplevel rule can't be used (now that there's a reason).
- *
- *  Revision 1.28  2001/06/21 02:00:40  hp
- *  	* entry.S: Include asm/unistd.h.
- *  	(_sys_call_table): Use section .rodata, not .data.
- *  	(_kernel_thread): Move from...
- *  	* process.c: ... here.
- *  	* entryoffsets.c (VAL): Break out from...
- *  	(OF): Use VAL.
- *  	(LCLONE_VM): New asmified value from CLONE_VM.
- *
- *  Revision 1.27  2001/05/29 11:25:27  markusl
- *  In case of "spurious_interrupt", do hard_reset instead of hanging system in a loop...
- *
- *  Revision 1.26  2001/05/15 15:46:03  bjornw
- *  Include config.h now that we use some CONFIG_ options
- *
- *  Revision 1.25  2001/05/15 05:38:47  hp
- *  Tweaked code in _ret_from_sys_call
- *
- *  Revision 1.24  2001/05/15 05:27:49  hp
- *  Save r9 in r1 over function call rather than on stack.
- *
- *  Revision 1.23  2001/05/15 05:10:00  hp
- *  Generate entry.S structure offsets from C
- *
- *  Revision 1.22  2001/04/17 13:58:39  orjanf
- *  * Renamed CONFIG_KGDB to CONFIG_ETRAX_KGDB.
- *
- *  Revision 1.21  2001/04/17 11:33:29  orjanf
- *  Updated according to review:
- *  * Included asm/sv_addr_ag.h to get macro for internal register.
- *  * Corrected comment regarding system call argument passing.
- *  * Removed comment about instruction being in a delay slot.
- *  * Added comment about SYMBOL_NAME macro.
- *
- *  Revision 1.20  2001/04/12 08:51:07  hp
- *  - Add entry for sys_fcntl64.  In fact copy last piece from i386 including ...
- *  - .rept to fill table to safe state with sys_ni_syscall.
- *
- *  Revision 1.19  2001/04/04 09:43:32  orjanf
- *  * Moved do_sigtrap from traps.c to entry.S.
- *  * LTASK_PID need not be global anymore.
- *
- *  Revision 1.18  2001/03/26 09:25:02  markusl
- *  Updated after review, should now handle USB interrupts correctly.
- *
- *  Revision 1.17  2001/03/21 16:12:55  bjornw
- *  * Always make room for the cpu status record in the frame, in order to
- *    use the same framelength and layout for both mmu busfaults and normal
- *    irqs. No need to check for the explicit CRIS_FRAME_FIXUP type anymore.
- *  * Fixed bug with using addq for popping the stack in the epilogue - it
- *    destroyed the flag register. Use instructions that don't affect the
- *    flag register instead.
- *  * Removed write to R_PORT_PA_DATA during spurious_interrupt
- *
- *  Revision 1.16  2001/03/20 19:43:02  bjornw
- *  * Get rid of esp0 setting
- *  * Give a 7th argument to a systemcall - the stackframe
- *
- *  Revision 1.15  2001/03/05 13:14:30  bjornw
- *  Spelling fix
- *
- *  Revision 1.14  2001/02/23 08:36:36  perf
- *  New ABI; syscallnr=r9, arg5=mof, arg6=srp.
- *  Corrected tracesys call check.
- *
- *  Revision 1.13  2001/02/15 08:40:55  perf
- *  H-P by way of perf;
- *  - (_system_call): Don't read system call function address into r1.
- *  - (RBFExit): There is no such thing as a null pop.  Adjust sp by addq.
- *  - (_system_call): Don't use r10 and don't save and restore it.
- *  - (THREAD_ESP0): New constant.
- *  - (_system_call): Inline set_esp0.
- *
- *  Revision 1.12  2001/01/31 17:56:25  orjanf
- *  Added definition of LTASK_PID and made it global.
- *
- *  Revision 1.11  2001/01/10 21:13:29  bjornw
- *  SYMBOL_NAME is defined incorrectly for the compiler options we currently use
- *
- *  Revision 1.10  2000/12/18 23:47:56  bjornw
- *  * Added syscall trace support (ptrace), completely untested of course
- *  * Removed redundant check for NULL entries in syscall_table
- *
- *  Revision 1.9  2000/11/21 16:40:51  bjornw
- *  * New frame type used when an SBFS frame needs to be popped without
- *    actually restarting the instruction
- *  * Enable interrupts in signal_return (they did so in x86, I hope it's a good
- *    idea)
- *
- *  Revision 1.8  2000/11/17 16:53:35  bjornw
- *  Added detection of frame-type in Rexit, so that mmu_bus_fault can
- *  use ret_from_intr in the return-path to check for signals (like SEGV)
- *  and other foul things that might have occurred during the fault.
- *
- *  Revision 1.7  2000/10/06 15:04:28  bjornw
- *  Include mof in register savings
- *
- *  Revision 1.6  2000/09/12 16:02:44  bjornw
- *  Linux-2.4.0-test7 derived updates
- *
- *  Revision 1.5  2000/08/17 15:35:15  bjornw
- *  2.4.0-test6 changed local_irq_count and friends API
- *
- *  Revision 1.4  2000/08/02 13:59:30  bjornw
- *  Removed olduname and uname from the syscall list
- *
- *  Revision 1.3  2000/07/31 13:32:58  bjornw
- *  * Export ret_from_intr
- *  * _resume updated (prev/last tjohejsan)
- *  * timer_interrupt obsolete
- *  * SIGSEGV detection in mmu_bus_fault temporarily disabled
- *
- *
  */
 
 /*