/*
- * File: arch/blackfin/mach-common/interrupt.S
- * Based on:
- * Author: D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>
- * Kenneth Albanowski <kjahds@kjahds.com>
- *
- * Created: ?
- * Description: Interrupt Entries
- *
- * Modified:
- * Copyright 2004-2006 Analog Devices Inc.
- *
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * Interrupt Entries
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Copyright 2005-2009 Analog Devices Inc.
+ * D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>
+ * Kenneth Albanowski <kjahds@kjahds.com>
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
*/
#include <asm/blackfin.h>
sti r1;
#else
cli r1;
+#endif
+#ifdef CONFIG_TRACE_IRQFLAGS
+ [--sp] = r0;
+ sp += -12;
+ call _trace_hardirqs_off;
+ sp += 12;
+ r0 = [sp++];
#endif
[--sp] = RETI; /* orig_pc */
/* Clear all L registers. */
cc = r0 == 0;
if cc jump .Lcommon_restore_context;
#else /* CONFIG_IPIPE */
- call _do_irq;
+ pseudo_long_call _do_irq, p2;
SP += 12;
#endif /* CONFIG_IPIPE */
- call _return_from_int;
+ pseudo_long_call _return_from_int, p2;
.Lcommon_restore_context:
RESTORE_CONTEXT
rti;
r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
SP += -12;
- call _trap_c;
+ pseudo_long_call _trap_c, p5;
SP += 12;
#ifdef EBIU_ERRMST
w[p0] = r0.l;
#endif
- call _ret_from_exception;
+ pseudo_long_call _ret_from_exception, p2;
.Lcommon_restore_all_sys:
RESTORE_ALL_SYS
ENDPROC(_evt_ivhw)
/* Interrupt routine for evt2 (NMI).
- * We don't actually use this, so just return.
* For inner circle type details, please see:
* http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:nmi
*/
ENTRY(_evt_nmi)
+#ifndef CONFIG_NMI_WATCHDOG
.weak _evt_nmi
+#else
+ /* Not take account of CPLBs, this handler will not return */
+ SAVE_ALL_SYS
+ r0 = sp;
+ r1 = retn;
+ [sp + PT_PC] = r1;
+ trace_buffer_save(p4,r5);
+
+ ANOMALY_283_315_WORKAROUND(p4, r5)
+
+ SP += -12;
+ call _do_nmi;
+ SP += 12;
+1:
+ jump 1b;
+#endif
rtn;
ENDPROC(_evt_nmi)
#ifdef CONFIG_FRAME_POINTER
fp = 0;
#endif
- call _system_call;
+ pseudo_long_call _system_call, p2;
jump .Lcommon_restore_context;
ENDPROC(_evt_system_call)