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Diffstat (limited to 'arch/ia64/kernel/mca_drv_asm.S')
-rw-r--r--arch/ia64/kernel/mca_drv_asm.S18
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S
index bcfa05a..2d7e021 100644
--- a/arch/ia64/kernel/mca_drv_asm.S
+++ b/arch/ia64/kernel/mca_drv_asm.S
@@ -10,6 +10,7 @@
#include <asm/asmmacro.h>
#include <asm/processor.h>
+#include <asm/ptrace.h>
GLOBAL_ENTRY(mca_handler_bhhook)
invala // clear RSE ?
@@ -20,12 +21,21 @@ GLOBAL_ENTRY(mca_handler_bhhook)
;;
alloc r16=ar.pfs,0,2,1,0 // make a new frame
;;
+ mov ar.rsc=0
+ ;;
mov r13=IA64_KR(CURRENT) // current task pointer
;;
- adds r12=IA64_TASK_THREAD_KSP_OFFSET,r13
+ mov r2=r13
+ ;;
+ addl r22=IA64_RBS_OFFSET,r2
+ ;;
+ mov ar.bspstore=r22
;;
- ld8 r12=[r12] // stack pointer
+ addl sp=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r2
;;
+ adds r2=IA64_TASK_THREAD_ON_USTACK_OFFSET,r13
+ ;;
+ st1 [r2]=r0 // clear current->thread.on_ustack flag
mov loc0=r16
movl loc1=mca_handler_bh // recovery C function
;;
@@ -34,7 +44,9 @@ GLOBAL_ENTRY(mca_handler_bhhook)
;;
mov loc1=rp
;;
- br.call.sptk.many rp=b6 // not return ...
+ ssm psr.i
+ ;;
+ br.call.sptk.many rp=b6 // does not return ...
;;
mov ar.pfs=loc0
mov rp=loc1