aboutsummaryrefslogtreecommitdiffstats
path: root/arch/blackfin/mach-common/interrupt.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/mach-common/interrupt.S')
-rw-r--r--arch/blackfin/mach-common/interrupt.S48
1 files changed, 34 insertions, 14 deletions
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index 4de376418a18..7f752c87fe46 100644
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -34,9 +34,13 @@
#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
@@ -117,8 +121,8 @@ __common_int_entry:
#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:
@@ -134,26 +138,22 @@ __common_int_entry:
/* 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;
@@ -161,11 +161,29 @@ ENTRY(_evt_ivhw)
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:
@@ -173,9 +191,11 @@ ENTRY(_evt_ivhw)
call _pm_overflow;
SP += 12;
- jump .Lcommon_restore_context;
+ jump .Lcommon_restore_all_sys;
#endif
+ENDPROC(_evt_ivhw)
+
/* Interrupt routine for evt2 (NMI).
* We don't actually use this, so just return.
* For inner circle type details, please see: