#include <asm/blackfin.h>
#include <asm/mach/irq.h>
-#include <linux/autoconf.h>
#include <linux/linkage.h>
#include <asm/entry.h>
#include <asm/asm-offsets.h>
#include <asm/trace.h>
+#include <asm/traps.h>
+#include <asm/thread_info.h>
#include <asm/mach-common/context.S>
+.extern _ret_from_exception
+
#ifdef CONFIG_I_ENTRY_L1
.section .l1.text
#else
.align 4 /* just in case */
-/*
- * initial interrupt handlers
- */
-
-#ifndef CONFIG_KGDB
- /* interrupt routine for emulation - 0 */
- /* Currently used only if GDB stub is not in - invalid */
- /* gdb-stub set the evt itself */
- /* save registers for post-mortem only */
-ENTRY(_evt_emulation)
- SAVE_ALL_SYS
-#ifdef CONFIG_FRAME_POINTER
- fp = 0;
-#endif
- r0 = IRQ_EMU;
- r1 = sp;
- SP += -12;
- call _irq_panic;
- SP += 12;
- /* - GDB stub fills this in by itself (if defined) */
- rte;
-ENDPROC(_evt_emulation)
-#endif
-
/* Common interrupt entry code. First we do CLI, then push
* RETI, to keep interrupts disabled, but to allow this state to be changed
* by local_bh_enable.
#if ANOMALY_05000283 || ANOMALY_05000315
cc = r7 == r7;
- p5.h = 0xffc0;
- p5.l = 0x0014;
+ p5.h = HI(CHIPID);
+ p5.l = LO(CHIPID);
if cc jump 1f;
r7.l = W[p5];
1:
/* interrupt routine for ivhw - 5 */
ENTRY(_evt_ivhw)
- SAVE_CONTEXT
+ SAVE_ALL_SYS
#ifdef CONFIG_FRAME_POINTER
fp = 0;
#endif
+
#if ANOMALY_05000283
cc = r7 == r7;
- p5.h = 0xffc0;
- p5.l = 0x0014;
+ p5.h = HI(CHIPID);
+ p5.l = LO(CHIPID);
if cc jump 1f;
r7.l = W[p5];
1:
#endif
- trace_buffer_stop(p0, r0);
-
- r0 = IRQ_HWERR;
- r1 = sp;
-
#ifdef CONFIG_HARDWARE_PM
- r7 = SEQSTAT;
+ r7 = [sp + PT_SEQSTAT];
r7 = r7 >>> 0xe;
r6 = 0x1F;
r7 = r7 & r6;
cc = r7 == r5;
if cc jump .Lcall_do_ovf; /* deal with performance counter overflow */
#endif
-
+ # We are going to dump something out, so make sure we print IPEND properly
+ p2.l = lo(IPEND);
+ p2.h = hi(IPEND);
+ r0 = [p2];
+ [sp + PT_IPEND] = r0;
+
+ /* set the EXCAUSE to HWERR for trap_c */
+ r0 = [sp + PT_SEQSTAT];
+ R1.L = LO(VEC_HWERR);
+ R1.H = HI(VEC_HWERR);
+ R0 = R0 | R1;
+ [sp + PT_SEQSTAT] = R0;
+
+ r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
SP += -12;
- call _irq_panic;
+ call _trap_c;
SP += 12;
+
+ call _ret_from_exception;
+.Lcommon_restore_all_sys:
+ RESTORE_ALL_SYS
rti;
+
#ifdef CONFIG_HARDWARE_PM
.Lcall_do_ovf:
call _pm_overflow;
SP += 12;
- jump .Lcommon_restore_context;
+ jump .Lcommon_restore_all_sys;
#endif
-/* interrupt routine for evt2 - 2. This is NMI. */
-ENTRY(_evt_evt2)
- SAVE_CONTEXT
-#ifdef CONFIG_FRAME_POINTER
- fp = 0;
-#endif
-#if ANOMALY_05000283
- cc = r7 == r7;
- p5.h = 0xffc0;
- p5.l = 0x0014;
- if cc jump 1f;
- r7.l = W[p5];
-1:
-#endif
- r0 = IRQ_NMI;
- r1 = sp;
- SP += -12;
- call _asm_do_IRQ;
- SP += 12;
- RESTORE_CONTEXT
+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:nmi
+ */
+ENTRY(_evt_nmi)
+.weak _evt_nmi
rtn;
+ENDPROC(_evt_nmi)
/* interrupt routine for core timer - 6 */
ENTRY(_evt_timer)