// 12/08/05 Keith Owens <kaos@sgi.com>
// Use per cpu MCA/INIT stacks for all data.
//
-#include <linux/config.h>
#include <linux/threads.h>
#include <asm/asmmacro.h>
GET_IA64_MCA_DATA(r2)
// Using MCA stack, struct ia64_sal_os_state, variable proc_state_param
;;
- add r3=IA64_MCA_CPU_MCA_STACK_OFFSET+MCA_SOS_OFFSET+IA64_SAL_OS_STATE_PROC_STATE_PARAM_OFFSET, r2
+ add r3=IA64_MCA_CPU_MCA_STACK_OFFSET+MCA_SOS_OFFSET+SOS(PROC_STATE_PARAM), r2
;;
ld8 r18=[r3] // Get processor state parameter on existing PALE_CHECK.
;;
st8 [temp2]=r11,16 // rv_rc
mov r11=cr.iipa
;;
- st8 [temp1]=r18,16 // proc_state_param
- st8 [temp2]=r19,16 // monarch
+ st8 [temp1]=r18 // proc_state_param
+ st8 [temp2]=r19 // monarch
mov r6=IA64_KR(CURRENT)
+ add temp1=SOS(SAL_RA), regs
+ add temp2=SOS(SAL_GP), regs
;;
st8 [temp1]=r12,16 // sal_ra
st8 [temp2]=r10,16 // sal_gp
st8 [temp2]=r11,16 // cr.iipa
mov r12=cr.iim
;;
- st8 [temp1]=r12,16 // cr.iim
+ st8 [temp1]=r12 // cr.iim
(p1) mov r12=IA64_MCA_COLD_BOOT
(p2) mov r12=IA64_INIT_WARM_BOOT
mov r6=cr.iha
+ add temp1=SOS(OS_STATUS), regs
;;
- st8 [temp2]=r6,16 // cr.iha
+ st8 [temp2]=r6 // cr.iha
+ add temp2=SOS(CONTEXT), regs
st8 [temp1]=r12 // os_status, default is cold boot
mov r6=IA64_MCA_SAME_CONTEXT
;;
// Restore the SAL to OS state. The previous code left regs at pt_regs.
add regs=MCA_SOS_OFFSET-MCA_PT_REGS_OFFSET, regs
;;
- add temp1=IA64_SAL_OS_STATE_COMMON_OFFSET, regs
- add temp2=IA64_SAL_OS_STATE_COMMON_OFFSET+8, regs
+ add temp1=SOS(SAL_RA), regs
+ add temp2=SOS(SAL_GP), regs
;;
ld8 r12=[temp1],16 // sal_ra
ld8 r9=[temp2],16 // sal_gp
;;
ld8 r22=[temp1],16 // pal_min_state, virtual
- ld8 r21=[temp2],16 // prev_IA64_KR_CURRENT
+ ld8 r13=[temp2],16 // prev_IA64_KR_CURRENT
;;
ld8 r16=[temp1],16 // prev_IA64_KR_CURRENT_STACK
ld8 r20=[temp2],16 // prev_task
;;
mov cr.itir=temp3
mov cr.iipa=temp4
- ld8 temp3=[temp1],16 // cr.iim
- ld8 temp4=[temp2],16 // cr.iha
+ ld8 temp3=[temp1] // cr.iim
+ ld8 temp4=[temp2] // cr.iha
+ add temp1=SOS(OS_STATUS), regs
+ add temp2=SOS(CONTEXT), regs
;;
mov cr.iim=temp3
mov cr.iha=temp4
dep r22=0,r22,62,1 // pal_min_state, physical, uncached
- mov IA64_KR(CURRENT)=r21
+ mov IA64_KR(CURRENT)=r13
ld8 r8=[temp1] // os_status
ld8 r10=[temp2] // context
* avoid any dependencies on the algorithm in ia64_switch_to(), just
* purge any existing CURRENT_STACK mapping and insert the new one.
*
- * r16 contains prev_IA64_KR_CURRENT_STACK, r21 contains
+ * r16 contains prev_IA64_KR_CURRENT_STACK, r13 contains
* prev_IA64_KR_CURRENT, these values may have been changed by the C
* code. Do not use r8, r9, r10, r22, they contain values ready for
* the return to SAL.
;;
srlz.d
- extr.u r19=r21,61,3 // r21 = prev_IA64_KR_CURRENT
+ extr.u r19=r13,61,3 // r13 = prev_IA64_KR_CURRENT
shl r20=r16,IA64_GRANULE_SHIFT // r16 = prev_IA64_KR_CURRENT_STACK
movl r21=PAGE_KERNEL // page properties
;;
(p6) br.spnt 1f // the dreaded cpu 0 idle task in region 5:(
;;
mov cr.itir=r18
- mov cr.ifa=r21
+ mov cr.ifa=r13
mov r20=IA64_TR_CURRENT_STACK
;;
itr.d dtr[r20]=r21
ia64_new_stack:
add regs=MCA_PT_REGS_OFFSET, r3
- add temp2=MCA_SOS_OFFSET+IA64_SAL_OS_STATE_PAL_MIN_STATE_OFFSET, r3
+ add temp2=MCA_SOS_OFFSET+SOS(PAL_MIN_STATE), r3
mov b0=r2 // save return address
GET_IA64_MCA_DATA(temp1)
invala
ia64_set_kernel_registers:
add temp3=MCA_SP_OFFSET, r3
- add temp4=MCA_SOS_OFFSET+IA64_SAL_OS_STATE_OS_GP_OFFSET, r3
mov b0=r2 // save return address
GET_IA64_MCA_DATA(temp1)
;;
- add temp4=temp4, temp1 // &struct ia64_sal_os_state.os_gp
add r12=temp1, temp3 // kernel stack pointer on MCA/INIT stack
add r13=temp1, r3 // set current to start of MCA/INIT stack
add r20=temp1, r3 // physical start of MCA/INIT stack
;;
- ld8 r1=[temp4] // OS GP from SAL OS state
- ;;
- DATA_PA_TO_VA(r1,temp1)
DATA_PA_TO_VA(r12,temp2)
DATA_PA_TO_VA(r13,temp3)
;;
mov cr.itir=r18
mov cr.ifa=r13
mov r20=IA64_TR_CURRENT_STACK
+
+ movl r17=FPSR_DEFAULT
+ ;;
+ mov.m ar.fpsr=r17 // set ar.fpsr to kernel default value
;;
itr.d dtr[r20]=r21
;;