/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#include <ppc/asm.h>
#include <ppc/proc_reg.h>
* Note: the BlueBox fast path system calls (-1 and -2) we handled as
* an ultra-fast trap in lowmem_vectors.
*/
- li r5, BTTD_SYSCALL_VECTOR
+ lwz r5,bbSysCall(r13) ; Pick up the syscall vector
b .L_CallPseudoKernel
ENTRY(atomic_switch_trap, TAG_NO_FRAME_USED)
cmplwi cr7,r24,BB_RFI_TRAP ; Is this an RFI?
beq cr7,.L_ExitPseudoKernel ; Yes...
- li r5, BTTD_TRAP_VECTOR
+ lwz r5,bbTrap(r13) ; Pick up the trap vector
/******************************************************************************
* void CallPseudoKernel ( int vector, thread_act_t * act, BEDA_t * beda, savearea *sv )
.L_CallPseudoKernel:
- mfsprg r2,0 ; Get the per_proc
+ mfsprg r2,1 ; Get the current activation
+ lwz r2,ACT_PER_PROC(r2) ; Get the per_proc block
rlwinm r6,r26,0,0,19 ; Start of page is bttd
lwz r7,ACT_MACT_SPF(r13) ; Get special flags
lwz r1,BTTD_INTERRUPT_VECTOR(r6) ; Get interrupt vector
.L_CallFromPreemptiveThread:
- lwz r1,savesrr0(r4) ; Get current PC
- lwz r2,saver1(r4) ; Get current R1
- lwz r3,savesrr1(r4) ; Get current MSR
+ lwz r1,savesrr0+4(r4) ; Get current PC
+ lwz r2,saver1+4(r4) ; Get current R1
+ lwz r3,savesrr1+4(r4) ; Get current MSR
stw r1,BEDA_SRR0(r26) ; Save current PC
rlwinm r3,r3,0,MSR_BE_BIT+1,MSR_SE_BIT-1
; Clear SE|BE bits in MSR
stw r2,BEDA_SPRG1(r26) ; Save current R1
- stw r3,savesrr1(r4) ; Load new MSR
+ stw r3,savesrr1+4(r4) ; Load new MSR
lwz r1,BEDA_SPRG0(r26) ; Get replacement R1
- lwzx r2,r5,r6 ; Load vector address
+ stw r5,savesrr0+4(r4) ; Save vector as PC
stw r3,BEDA_SRR1(r26) ; Update saved MSR
- stw r1,saver1(r4) ; Load up new R1
- stw r2,savesrr0(r4) ; Save vector as PC
+ stw r1,saver1+4(r4) ; Load up new R1
b EXT(fastexit) ; Go back and take the fast path exit...
ori r7,r7,(0x8000 >> (bbNoMachSCbit - 16)) ; Disable Mach SCs for Blue Box
cmpwi r2,0 ; Is this a preemptive thread
- stw r1,savectr(r4) ; Update CTR
+ stw r1,savectr+4(r4) ; Update CTR
beq .L_ExitFromPreemptiveThread
lwz r8,BTTD_INTCONTROLWORD(r6) ; Get ICW
beq cr1,.L_ExitToSystemContext ; We are in system context
beq .L_ExitUpdateRuptControlWord ; We do not have a pending interrupt
- lwz r2,saver1(r4) ; Get current R1
+ lwz r2,saver1+4(r4) ; Get current R1
lwz r1,BEDA_SPRG0(r26) ; Get replacement R1
stw r2,BEDA_SPRG1(r26) ; Save current R1
- stw r1,saver1(r4) ; Load up new R1
- lwz r3,BTTD_PENDINGINT_VECTOR(r6) ; Get pending interrupt PC
+ stw r1,saver1+4(r4) ; Load up new R1
+ lwz r3,bbPending(r13) ; Get pending interrupt PC
b .L_ExitAbortExit ; Abort and Exit
.L_ExitToSystemContext:
stw r1,savecr(r4) ; Update CR
.L_ExitFromPreemptiveThread:
- mfsprg r3,0 ; Get the per_proc
- lwz r2,savesrr1(r4) ; Get current MSR
+ mfsprg r3,1 ; Get the current activation
+ lwz r3,ACT_PER_PROC(r3) ; Get the per_proc block
+ lwz r2,savesrr1+4(r4) ; Get current MSR
lwz r1,BEDA_SRR1(r26) ; Get new MSR
stw r7,ACT_MACT_SPF(r13) ; Update special flags
stw r7,spcFlags(r3) ; Update per_proc version
rlwimi r2,r1,0,MSR_FE0_BIT,MSR_FE1_BIT
; Insert FE0,FE1,SE,BE bits
lwz r3,BEDA_SRR0(r26) ; Get new PC
- stw r2,savesrr1(r4) ; Update MSR
+ stw r2,savesrr1+4(r4) ; Update MSR
.L_ExitAbortExit:
- stw r3,savesrr0(r4) ; Update PC
+ stw r3,savesrr0+4(r4) ; Update PC
b EXT(fastexit) ; Go back and take the fast path exit...
projects / apple / xnu.git / blobdiff