diff options
author | Dale Rahn <drahn@cvs.openbsd.org> | 2001-09-01 15:44:21 +0000 |
---|---|---|
committer | Dale Rahn <drahn@cvs.openbsd.org> | 2001-09-01 15:44:21 +0000 |
commit | b0437314cc10bd43e476454d2df24ec3d953247f (patch) | |
tree | 2b9119cda2c7c8e085671492f7694db29d608556 /sys/arch | |
parent | 96fe985cf8e20d3f5d9dd24aab20b615da5c5c86 (diff) |
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.
Most of the work involved in the renaming process was performed by miod@
Files moved from powerpc/powerpc to macppc/macppc
This moves hardware specific files from the common directory to the
platform specific directory. This leaves common files.
With this change all of the debugger (db_) files have been moved to
the platform specific directory. The debugger should be reconsidered
and commonized.
Diffstat (limited to 'sys/arch')
-rw-r--r-- | sys/arch/macppc/macppc/autoconf.c (renamed from sys/arch/powerpc/powerpc/autoconf.c) | 6 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/clock.c (renamed from sys/arch/powerpc/powerpc/clock.c) | 6 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/conf.c (renamed from sys/arch/powerpc/powerpc/conf.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/cpu.c (renamed from sys/arch/powerpc/powerpc/cpu.c) | 4 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/db_disasm.c (renamed from sys/arch/powerpc/powerpc/db_disasm.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/db_interface.c (renamed from sys/arch/powerpc/powerpc/db_interface.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/db_memrw.c (renamed from sys/arch/powerpc/powerpc/db_memrw.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/db_trace.c (renamed from sys/arch/powerpc/powerpc/db_trace.c) | 5 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/disksubr.c (renamed from sys/arch/powerpc/powerpc/disksubr.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/dma.c (renamed from sys/arch/powerpc/powerpc/dma.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/machdep.c (renamed from sys/arch/powerpc/powerpc/machdep.c) | 6 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/mainbus.c (renamed from sys/arch/powerpc/powerpc/mainbus.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/mem.c (renamed from sys/arch/powerpc/powerpc/mem.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/ofw_machdep.c (renamed from sys/arch/powerpc/powerpc/ofw_machdep.c) | 6 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/opendev.c (renamed from sys/arch/powerpc/powerpc/opendev.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/openfirm.c (renamed from sys/arch/powerpc/powerpc/openfirm.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/random.c (renamed from sys/arch/powerpc/powerpc/random.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/swapgeneric.c (renamed from sys/arch/powerpc/powerpc/swapgeneric.c) | 2 | ||||
-rw-r--r-- | sys/arch/macppc/macppc/wscons_machdep.c (renamed from sys/arch/powerpc/powerpc/wscons_machdep.c) | 2 | ||||
-rw-r--r-- | sys/arch/powerpc/powerpc/genassym.cf | 77 | ||||
-rw-r--r-- | sys/arch/powerpc/powerpc/locore.S | 1409 | ||||
-rw-r--r-- | sys/arch/powerpc/powerpc/ofwreal.S | 450 |
22 files changed, 27 insertions, 1968 deletions
diff --git a/sys/arch/powerpc/powerpc/autoconf.c b/sys/arch/macppc/macppc/autoconf.c index 519c2f8120e..68e3f99af68 100644 --- a/sys/arch/powerpc/powerpc/autoconf.c +++ b/sys/arch/macppc/macppc/autoconf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: autoconf.c,v 1.12 2001/06/24 04:49:27 drahn Exp $ */ +/* $OpenBSD: autoconf.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1996, 1997 Per Fogelstrom * Copyright (c) 1995 Theo de Raadt @@ -41,7 +41,7 @@ * from: Utah Hdr: autoconf.c 1.31 91/01/21 * * from: @(#)autoconf.c 8.1 (Berkeley) 6/10/93 - * $Id: autoconf.c,v 1.12 2001/06/24 04:49:27 drahn Exp $ + * $Id: autoconf.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* @@ -242,7 +242,7 @@ getdisk(str, len, defpart, devp) for (dv = alldevs.tqh_first; dv != NULL; dv = dv->dv_list.tqe_next) { if (dv->dv_class == DV_DISK) - printf(" %s[a-h]", dv->dv_xname); + printf(" %s[a-p]", dv->dv_xname); #ifdef NFSCLIENT if (dv->dv_class == DV_IFNET) printf(" %s", dv->dv_xname); diff --git a/sys/arch/powerpc/powerpc/clock.c b/sys/arch/macppc/macppc/clock.c index 15b2ba6a5a9..cebc44c59c1 100644 --- a/sys/arch/powerpc/powerpc/clock.c +++ b/sys/arch/macppc/macppc/clock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: clock.c,v 1.14 2001/06/24 04:59:26 drahn Exp $ */ +/* $OpenBSD: clock.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: clock.c,v 1.1 1996/09/30 16:34:40 ws Exp $ */ /* @@ -41,10 +41,6 @@ #include <machine/intr.h> #include <dev/ofw/openfirm.h> -#if 0 -#include <powerpc/pci/mpc106reg.h> -#endif - void resettodr(void); static inline u_quad_t mftb(void); diff --git a/sys/arch/powerpc/powerpc/conf.c b/sys/arch/macppc/macppc/conf.c index 56a8aec2f2f..a381b49043a 100644 --- a/sys/arch/powerpc/powerpc/conf.c +++ b/sys/arch/macppc/macppc/conf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: conf.c,v 1.26 2001/08/06 22:34:44 mickey Exp $ */ +/* $OpenBSD: conf.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1997 Per Fogelstrom diff --git a/sys/arch/powerpc/powerpc/cpu.c b/sys/arch/macppc/macppc/cpu.c index fa908134ec7..f1b090ceb03 100644 --- a/sys/arch/powerpc/powerpc/cpu.c +++ b/sys/arch/macppc/macppc/cpu.c @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.c,v 1.12 2001/07/09 04:41:28 mickey Exp $ */ +/* $OpenBSD: cpu.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1997 Per Fogelstrom @@ -61,7 +61,7 @@ #define HID0_DPM (1 << (31-11)) char cpu_model[80]; -char machine[] = "powerpc"; /* cpu architecture */ +char machine[] = MACHINE; /* cpu architecture */ /* Definition of the driver for autoconfig. */ int cpumatch(struct device *, void *, void *); diff --git a/sys/arch/powerpc/powerpc/db_disasm.c b/sys/arch/macppc/macppc/db_disasm.c index 9bf13a99f25..3845f3f08fd 100644 --- a/sys/arch/powerpc/powerpc/db_disasm.c +++ b/sys/arch/macppc/macppc/db_disasm.c @@ -1,5 +1,5 @@ /* $NetBSD: db_disasm.c,v 1.8 2001/06/12 05:31:44 simonb Exp $ */ -/* $OpenBSD: db_disasm.c,v 1.7 2001/08/21 02:49:14 drahn Exp $ */ +/* $OpenBSD: db_disasm.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1996 Dale Rahn. All rights reserved. * diff --git a/sys/arch/powerpc/powerpc/db_interface.c b/sys/arch/macppc/macppc/db_interface.c index fc66b2c08f2..53d68fd004a 100644 --- a/sys/arch/powerpc/powerpc/db_interface.c +++ b/sys/arch/macppc/macppc/db_interface.c @@ -1,4 +1,4 @@ -/* $OpenBSD: db_interface.c,v 1.7 2001/08/21 02:58:35 drahn Exp $ */ +/* $OpenBSD: db_interface.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: db_interface.c,v 1.12 2001/07/22 11:29:46 wiz Exp $ */ #include <sys/param.h> diff --git a/sys/arch/powerpc/powerpc/db_memrw.c b/sys/arch/macppc/macppc/db_memrw.c index 576b50ddf90..8c8e400175b 100644 --- a/sys/arch/powerpc/powerpc/db_memrw.c +++ b/sys/arch/macppc/macppc/db_memrw.c @@ -1,5 +1,5 @@ /* $NetBSD: db_memrw.c,v 1.4 2001/05/18 20:38:27 matt Exp $ */ -/* $OpenBSD: db_memrw.c,v 1.3 2001/06/24 22:00:13 drahn Exp $ */ +/* $OpenBSD: db_memrw.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Mach Operating System diff --git a/sys/arch/powerpc/powerpc/db_trace.c b/sys/arch/macppc/macppc/db_trace.c index 3a7cad5e9a1..55ccba0226d 100644 --- a/sys/arch/powerpc/powerpc/db_trace.c +++ b/sys/arch/macppc/macppc/db_trace.c @@ -1,4 +1,4 @@ -/* $OpenBSD: db_trace.c,v 1.11 2001/08/25 05:00:26 drahn Exp $ */ +/* $OpenBSD: db_trace.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: db_trace.c,v 1.15 1996/02/22 23:23:41 gwr Exp $ */ /* @@ -114,8 +114,7 @@ db_dumpframe(u_int32_t pframe) name = "?"; offset = 65536; } - db_printf("%x %s+0x%x fp %x nfp %x\n", - lr-4, name, offset, pframe, nextframe); + db_printf("%s+0x%x fp %x nfp %x\n", name, offset, pframe, nextframe); return nextframe; } diff --git a/sys/arch/powerpc/powerpc/disksubr.c b/sys/arch/macppc/macppc/disksubr.c index 423cd75ef48..5181f68359b 100644 --- a/sys/arch/powerpc/powerpc/disksubr.c +++ b/sys/arch/macppc/macppc/disksubr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: disksubr.c,v 1.16 2001/06/24 05:06:13 drahn Exp $ */ +/* $OpenBSD: disksubr.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: disksubr.c,v 1.21 1996/05/03 19:42:03 christos Exp $ */ /* diff --git a/sys/arch/powerpc/powerpc/dma.c b/sys/arch/macppc/macppc/dma.c index cd417021b47..ef8c1a3291c 100644 --- a/sys/arch/powerpc/powerpc/dma.c +++ b/sys/arch/macppc/macppc/dma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: dma.c,v 1.10 2001/08/18 21:59:48 drahn Exp $ */ +/* $OpenBSD: dma.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: machdep.c,v 1.214 1996/11/10 03:16:17 thorpej Exp $ */ /*- diff --git a/sys/arch/powerpc/powerpc/machdep.c b/sys/arch/macppc/macppc/machdep.c index 200c213d785..1680fb47b59 100644 --- a/sys/arch/powerpc/powerpc/machdep.c +++ b/sys/arch/macppc/macppc/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.80 2001/08/23 14:01:03 art Exp $ */ +/* $OpenBSD: machdep.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */ /* @@ -83,8 +83,8 @@ #include "adb.h" #if NADB > 0 -#include <arch/powerpc/mac/adbvar.h> -#include <arch/powerpc/mac/adb_direct.h> +#include <arch/macppc/dev/adbvar.h> +#include <arch/macppc/dev/adb_direct.h> #endif #ifdef DDB diff --git a/sys/arch/powerpc/powerpc/mainbus.c b/sys/arch/macppc/macppc/mainbus.c index 2158932f81e..138471a66a8 100644 --- a/sys/arch/powerpc/powerpc/mainbus.c +++ b/sys/arch/macppc/macppc/mainbus.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mainbus.c,v 1.8 2001/07/09 04:41:28 mickey Exp $ */ +/* $OpenBSD: mainbus.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1994, 1995 Carnegie-Mellon University. diff --git a/sys/arch/powerpc/powerpc/mem.c b/sys/arch/macppc/macppc/mem.c index 846e6d16a5a..30b861109b9 100644 --- a/sys/arch/powerpc/powerpc/mem.c +++ b/sys/arch/macppc/macppc/mem.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mem.c,v 1.8 2001/06/24 23:29:35 drahn Exp $ */ +/* $OpenBSD: mem.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: mem.c,v 1.1 1996/09/30 16:34:50 ws Exp $ */ /* diff --git a/sys/arch/powerpc/powerpc/ofw_machdep.c b/sys/arch/macppc/macppc/ofw_machdep.c index 9dea680f0fe..d7e46d9d5b3 100644 --- a/sys/arch/powerpc/powerpc/ofw_machdep.c +++ b/sys/arch/macppc/macppc/ofw_machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ofw_machdep.c,v 1.25 2001/08/18 05:39:03 drahn Exp $ */ +/* $OpenBSD: ofw_machdep.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: ofw_machdep.c,v 1.1 1996/09/30 16:34:50 ws Exp $ */ /* @@ -54,7 +54,7 @@ #include <ukbd.h> #include <akbd.h> #include <dev/usb/ukbdvar.h> -#include <powerpc/mac/akbdvar.h> +#include <macppc/dev/akbdvar.h> /* XXX, called from asm */ int save_ofw_mapping(void); @@ -330,7 +330,7 @@ ofwtrysercon(char *name, int qhandle) #endif #include <dev/pci/pcivar.h> -#include <arch/powerpc/pci/vgafb_pcivar.h> +#include <arch/macppc/pci/vgafb_pcivar.h> static pcitag_t ofw_make_tag( void *cpv, int bus, int dev, int fnc); /* ARGSUSED */ diff --git a/sys/arch/powerpc/powerpc/opendev.c b/sys/arch/macppc/macppc/opendev.c index f8f72452ccd..c27aad313ef 100644 --- a/sys/arch/powerpc/powerpc/opendev.c +++ b/sys/arch/macppc/macppc/opendev.c @@ -1,4 +1,4 @@ -/* $OpenBSD: opendev.c,v 1.5 2001/08/18 21:59:48 drahn Exp $ */ +/* $OpenBSD: opendev.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: openfirm.c,v 1.1 1996/09/30 16:34:52 ws Exp $ */ /* diff --git a/sys/arch/powerpc/powerpc/openfirm.c b/sys/arch/macppc/macppc/openfirm.c index ad27988930b..d28baa59202 100644 --- a/sys/arch/powerpc/powerpc/openfirm.c +++ b/sys/arch/macppc/macppc/openfirm.c @@ -1,4 +1,4 @@ -/* $OpenBSD: openfirm.c,v 1.8 2001/06/24 23:29:36 drahn Exp $ */ +/* $OpenBSD: openfirm.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: openfirm.c,v 1.1 1996/09/30 16:34:52 ws Exp $ */ /* diff --git a/sys/arch/powerpc/powerpc/random.c b/sys/arch/macppc/macppc/random.c index 0dc2a42627d..d016e6c5793 100644 --- a/sys/arch/powerpc/powerpc/random.c +++ b/sys/arch/macppc/macppc/random.c @@ -1,4 +1,4 @@ -/* $OpenBSD: random.c,v 1.2 1997/10/13 13:43:00 pefo Exp $ */ +/* $OpenBSD: random.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 1990,1993 The Regents of the University of California. diff --git a/sys/arch/powerpc/powerpc/swapgeneric.c b/sys/arch/macppc/macppc/swapgeneric.c index ef2bd031930..b4fd47baf7e 100644 --- a/sys/arch/powerpc/powerpc/swapgeneric.c +++ b/sys/arch/macppc/macppc/swapgeneric.c @@ -1,4 +1,4 @@ -/* $OpenBSD: swapgeneric.c,v 1.3 1997/10/13 13:43:01 pefo Exp $ */ +/* $OpenBSD: swapgeneric.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* $NetBSD: swapgeneric.c,v 1.1 1996/09/30 16:34:55 ws Exp $ */ /*- diff --git a/sys/arch/powerpc/powerpc/wscons_machdep.c b/sys/arch/macppc/macppc/wscons_machdep.c index 4abb121f1ab..63b76da8ea5 100644 --- a/sys/arch/powerpc/powerpc/wscons_machdep.c +++ b/sys/arch/macppc/macppc/wscons_machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: wscons_machdep.c,v 1.2 2001/06/24 23:29:37 drahn Exp $ */ +/* $OpenBSD: wscons_machdep.c,v 1.1 2001/09/01 15:44:20 drahn Exp $ */ /* * Copyright (c) 2001 Aaron Campbell diff --git a/sys/arch/powerpc/powerpc/genassym.cf b/sys/arch/powerpc/powerpc/genassym.cf deleted file mode 100644 index 02fc36242a8..00000000000 --- a/sys/arch/powerpc/powerpc/genassym.cf +++ /dev/null @@ -1,77 +0,0 @@ -# $OpenBSD: genassym.cf,v 1.2 1997/10/13 13:42:57 pefo Exp $ -# -# Copyright (c) 1982, 1990 The Regents of the University of California. -# All rights reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions -# are met: -# 1. Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# 2. Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the distribution. -# 3. All advertising materials mentioning features or use of this software -# must display the following acknowledgement: -# This product includes software developed by the University of -# California, Berkeley and its contributors. -# 4. Neither the name of the University nor the names of its contributors -# may be used to endorse or promote products derived from this software -# without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -# SUCH DAMAGE. -# -# @(#)genassym.c 7.8 (Berkeley) 5/7/91 -# - -include <sys/param.h> -include <sys/time.h> -include <sys/proc.h> -include <vm/vm.h> -include <vm/vm_kern.h> - - -include <machine/pcb.h> -include <machine/pmap.h> - - - -define FRAMELEN FRAMELEN -define FRAME_0 offsetof(struct trapframe, fixreg[0]) -define FRAME_1 offsetof(struct trapframe, fixreg[1]) -define FRAME_2 offsetof(struct trapframe, fixreg[2]) -define FRAME_3 offsetof(struct trapframe, fixreg[3]) -define FRAME_LR offsetof(struct trapframe, lr) -define FRAME_CR offsetof(struct trapframe, cr) -define FRAME_CTR offsetof(struct trapframe, ctr) -define FRAME_XER offsetof(struct trapframe, xer) -define FRAME_SRR0 offsetof(struct trapframe, srr0) -define FRAME_SRR1 offsetof(struct trapframe, srr1) -define FRAME_DAR offsetof(struct trapframe, dar) -define FRAME_DSISR offsetof(struct trapframe, dsisr) -define FRAME_EXC offsetof(struct trapframe, exc) - -define SFRAMELEN roundup(sizeof(struct switchframe), 16) - -define PCB_PMR offsetof(struct pcb, pcb_pmreal) -define PCB_SP offsetof(struct pcb, pcb_sp) -define PCB_SPL offsetof(struct pcb, pcb_spl) -define PCB_FAULT offsetof(struct pcb, pcb_onfault) - -define PM_USRSR offsetof(struct pmap, pm_sr[USER_SR]) -define PM_KERNELSR offsetof(struct pmap, pm_sr[KERNEL_SR]) - -define P_FORW offsetof(struct proc, p_forw) -define P_BACK offsetof(struct proc, p_back) -define P_ADDR offsetof(struct proc, p_addr) - diff --git a/sys/arch/powerpc/powerpc/locore.S b/sys/arch/powerpc/powerpc/locore.S deleted file mode 100644 index 710c9992dfb..00000000000 --- a/sys/arch/powerpc/powerpc/locore.S +++ /dev/null @@ -1,1409 +0,0 @@ -/* $OpenBSD: locore.S,v 1.18 2001/06/24 22:00:12 drahn Exp $ */ -/* $NetBSD: locore.S,v 1.2 1996/10/16 19:33:09 ws Exp $ */ - -/* - * Copyright (C) 1995, 1996 Wolfgang Solfrank. - * Copyright (C) 1995, 1996 TooLs GmbH. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "machine/ipkdb.h" - -#include "assym.h" - -#include <sys/syscall.h> - -#include <machine/asm.h> -#include <machine/param.h> -#include <machine/pmap.h> -#include <machine/psl.h> -#include <machine/trap.h> - -/* - * Globals - */ - .globl _C_LABEL(esym),_C_LABEL(proc0paddr) - .type _C_LABEL(esym),@object - .type _C_LABEL(proc0paddr),@object - .data -_C_LABEL(esym): .long 0 /* end of symbol table */ -_C_LABEL(proc0paddr): .long 0 /* proc0 p_addr */ -idle_u: .long 0 /* fake uarea during idle after exit */ - -fwargsave: - .long 0 - .long 0 - .globl _C_LABEL(where) - .type _C_LABEL(where),@object -_C_LABEL(where): .long 0 - -/* - * Startup entry - */ -_ENTRY(_C_LABEL(kernel_text)) -_ENTRY(_ASM_LABEL(start)) -/* arguments to start - * r1 - stack provided by firmware/bootloader - * r3 - unused - * r4 - unused - * r5 - firmware pointer (NULL for PPC1bug) - * r6 - arg list - * r7 - length - */ - .globl start - .type start,@function -start: - lis 3, fwargsave@ha - stw 6, fwargsave@l(3) - stw 7, fwargsave@l+4(3) -#ifdef SUPPORT_PPC1BUG - mr 0,5 - cmpwi 0,0,0 - bne 1f - /* need additional tests for other systems??? */ - bl ppc1bug_init - b 2f -#endif /* SUPPORT_PPC1BUG -1: /* support openfirmware for Apple and PowerStack w/OFW, ... */ - bl ofw_init -2: - li 0,0 - mtmsr 0 /* Disable FPU/MMU/exceptions */ - isync - -/* compute end of kernel memory */ - lis 8,_end@ha - addi 8,8,_end@l - lis 3, fwargsave@ha - lwz 6, fwargsave@l(3) - lwz 7, fwargsave@l+4(3) -#if defined(DDB) || defined(KERNFS) - cmpwi 6, 0 - beq 1f - add 9,6,7 - lwz 9, -4(9) - cmpwi 9,0 - beq 1f - lis 8,_C_LABEL(esym)@ha - stw 9,_C_LABEL(esym)@l(8) - mr 8, 9 -1: -#endif - li 9,PGOFSET - add 8,8,9 - andc 8,8,9 - lis 9,idle_u@ha - stw 8,idle_u@l(9) - addi 8,8,USPACE /* space for idle_u */ - lis 9,_C_LABEL(proc0paddr)@ha - stw 8,_C_LABEL(proc0paddr)@l(9) - addi 1,8,USPACE-FRAMELEN /* stackpointer for proc0 */ - mr 4,1 /* end of mem reserved for kernel */ - xor 0,0,0 - stwu 0,-16(1) /* end of stack chain */ - - li 0, 2 - lis 9,_C_LABEL(where)@ha - stw 0,_C_LABEL(where)@l(9) - - lis 3,start@ha - addi 3,3,start@l - mr 5,6 /* args string */ - bl _C_LABEL(initppc) - bl _C_LABEL(main) - b _C_LABEL(OF_exit) - -#define LED_ADDR 0x800008c0 -_ENTRY(_C_LABEL(led_dbg)) - stwu 1,-32(1) - mflr 0 - stw 0,36(1) - - stw 4,8(1) - stw 5,12(1) - stw 6,16(1) - stw 7,20(1) - mfmsr 5 - - mr 6,5 - ori 6,6,(PSL_IR|PSL_DR)@l /* turn on MMU */ - mtmsr 6 - sync - isync - - lis 4,LED_ADDR@ha - addi 4,4,LED_ADDR@l - li 7,0 - ori 3,3,0x2000 - sthbrx 3,7,4 - - sync - mtmsr 5 - isync - lwz 4,8(1) - lwz 5,12(1) - lwz 6,16(1) - lwz 7,20(1) - - lwz 0,36(1) - mtlr 0 - addi 1,1,32 - blr - -/* - * No processes are runnable, so loop waiting for one. - * Separate label here for accounting purposes. - */ -_C_LABEL(idle): - mfmsr 3 - andi. 3,3,~PSL_EE@l /* disable interrupts while manipulating runque */ - mtmsr 3 - - lis 8,_C_LABEL(whichqs)@ha - lwz 9,_C_LABEL(whichqs)@l(8) - - or. 9,9,9 - bne- _C_LABEL(sw1) /* at least one queue non-empty */ - - ori 3,3,PSL_EE /* reenable ints again */ - mtmsr 3 - isync - sync - /* low power mode */ - mfmsr 3 - oris 3, 3, PSL_POW@h - mtmsr 3 - isync - -/* May do some power saving here? */ - - b _C_LABEL(idle) - -/* - * switchexit gets called from cpu_exit to free the user structure - * and kernel stack of the current process. - */ -_ENTRY(_C_LABEL(switchexit)) -/* First switch to the idle pcb/kernel stack */ - lis 6,idle_u@ha - lwz 6,idle_u@l(6) - lis 7,_C_LABEL(curpcb)@ha - stw 6,_C_LABEL(curpcb)@l(7) - addi 1,6,USPACE-16 /* 16 bytes are reserved at stack top */ - /* - * Schedule the vmspace and stack to be freed (the proc arg is - * already in r3). - */ - bl _C_LABEL(exit2) - - /* Fall through to cpu_switch to actually select another proc */ - li 3,0 /* indicate exited process */ - - -/* Fall through to cpu_switch to actually select another proc */ - -/* - * void cpu_switch(struct proc *p) - * Find a runnable process and switch to it. - */ -_ENTRY(_C_LABEL(cpu_switch)) - mflr 0 /* save lr */ - stw 0,4(1) - stwu 1,-16(1) - stw 31,12(1) - stw 30,8(1) - - mr 30,3 - lis 3,_C_LABEL(curproc)@ha - xor 31,31,31 - stw 31,_C_LABEL(curproc)@l(3) /* Zero to not accumulate cpu time */ - lis 3,_C_LABEL(curpcb)@ha - lwz 31,_C_LABEL(curpcb)@l(3) - - xor 3,3,3 - bl _C_LABEL(lcsplx) - stw 3,PCB_SPL(31) /* save spl */ - -/* Find a new process */ - mfmsr 3 - andi. 3,3,~PSL_EE@l /* disable interrupts while - manipulating runque */ - mtmsr 3 - isync - - lis 8,_C_LABEL(whichqs)@ha - lwz 9,_C_LABEL(whichqs)@l(8) - - or. 9,9,9 - beq- _C_LABEL(idle) /* all queues empty */ -_C_LABEL(sw1): - cntlzw 10,9 - lis 4,_C_LABEL(qs)@ha - addi 4,4,_C_LABEL(qs)@l - slwi 3,10,3 - add 3,3,4 /* select queue */ - - lwz 31,P_FORW(3) /* unlink first proc from queue */ - lwz 4,P_FORW(31) - stw 4,P_FORW(3) - stw 3,P_BACK(4) - - cmpl 0,3,4 /* queue empty? */ - bne 1f - - lis 3,0x80000000@ha - srw 3,3,10 - andc 9,9,3 - stw 9,_C_LABEL(whichqs)@l(8) /* mark it empty */ - -1: - xor 3,3,3 - lis 4,_C_LABEL(want_resched)@ha - stw 3,_C_LABEL(want_resched)@l(4) /* just did this resched thing */ - - stw 3,P_BACK(31) /* probably superfluous */ - - lis 4,_C_LABEL(curproc)@ha - stw 31,_C_LABEL(curproc)@l(4) /* record new process */ - - mfmsr 3 - ori 3,3,PSL_EE /* Now we can interrupt again */ - mtmsr 3 - - cmpl 0,31,30 /* is it the same process? */ - beq switch_return - - or. 30,30,30 /* old process was exiting? */ - beq switch_exited - - mfsr 10,USER_SR /* save USER_SR for copyin/copyout */ - mfcr 11 /* save cr */ - mr 12,2 /* save r2 */ - stwu 1,-SFRAMELEN(1) /* still running on old stack */ - stmw 10,8(1) - lwz 3,P_ADDR(30) - stw 1,PCB_SP(3) /* save SP */ - -switch_exited: - mfmsr 3 - andi. 3,3,~PSL_EE@l /* disable interrupts while actually switching */ - mtmsr 3 - - lwz 4,P_ADDR(31) - lis 5,_C_LABEL(curpcb)@ha - stw 4,_C_LABEL(curpcb)@l(5) /* indicate new pcb */ - - lwz 5,PCB_PMR(4) - lis 6,_C_LABEL(curpm)@ha - stwu 5,_C_LABEL(curpm)@l(6) /* save real pmap pointer for spill fill */ - stwcx. 5,0,6 /* clear possible reservation */ - - addic. 5,5,64 - li 6,0 - mfsr 8,KERNEL_SR /* save kernel SR */ -1: - addis 6,6,-0x10000000@ha /* set new procs segment registers */ - or. 6,6,6 /* This is done from the real address pmap */ - lwzu 7,-4(5) /* so we don't have to worry */ - mtsrin 7,6 /* about accessibility */ - bne 1b - mtsr KERNEL_SR,8 /* restore kernel SR */ - isync - - lwz 1,PCB_SP(4) /* get new procs SP */ - - ori 3,3,PSL_EE /* interrupts are okay again */ - mtmsr 3 - - lmw 10,8(1) /* get other regs */ - lwz 1,0(1) /* get saved SP */ - mr 2,12 /* get saved r2 */ - mtcr 11 /* get saved cr */ - isync - mtsr USER_SR,10 /* get saved USER_SR */ - isync - -switch_return: - mr 30,7 /* save proc pointer */ - lwz 3,PCB_SPL(4) - bl _C_LABEL(lcsplx) - - mr 3,30 /* get curproc for special fork returns */ - - lwz 31,12(1) - lwz 30,8(1) - addi 1,1,16 - lwz 0,4(1) - mtlr 0 - blr - - -/* - * Data used during primary/secondary traps/interrupts - */ -#define tempsave 0x2e0 /* primary save area for trap handling */ -#define disisave 0x3e0 /* primary save area for dsi/isi traps */ -#define INTSTK (8*1024) /* 8K interrupt stack */ - .data -intstk: .space INTSTK /* interrupt stack */ - .global _C_LABEL(intr_depth) - .type _C_LABEL(intr_depth),@object -_C_LABEL(intr_depth): - .long -1 /* in-use marker */ -#define SPILLSTK 1024 /* 1K spill stack */ -.lcomm spillstk,SPILLSTK,8 - -/* - * This code gets copied to all the trap vectors - * (except ISI/DSI, ALI, the interrupts, and possibly the debugging traps - * when using IPKDB). - */ - .text - .globl _C_LABEL(trapcode),_C_LABEL(trapsize) - .type _C_LABEL(trapcode),@function - .type _C_LABEL(trapsize),@object -_C_LABEL(trapcode): - mtsprg 1,1 /* save SP */ - stmw 28,tempsave(0) /* free r28-r31 */ - mflr 28 /* save LR */ - mfcr 29 /* save CR */ -/* Test whether we already had PR set */ - mfsrr1 31 - mtcr 31 - bc 4,17,1f /* branch if PSL_PR is clear */ - lis 1,_C_LABEL(curpcb)@ha - lwz 1,_C_LABEL(curpcb)@l(1) - addi 1,1,USPACE /* stack is top of user struct */ -1: - bla s_trap -_C_LABEL(trapsize) = .-_C_LABEL(trapcode) - -/* - * For ALI: has to save DSISR and DAR - */ - .globl _C_LABEL(alitrap),_C_LABEL(alisize) -_C_LABEL(alitrap): - mtsprg 1,1 /* save SP */ - stmw 28,tempsave(0) /* free r28-r31 */ - mfdar 30 - mfdsisr 31 - stmw 30,tempsave+16(0) - mflr 28 /* save LR */ - mfcr 29 /* save CR */ -/* Test whether we already had PR set */ - mfsrr1 31 - mtcr 31 - bc 4,17,1f /* branch if PSL_PR is clear */ - lis 1,_C_LABEL(curpcb)@ha - lwz 1,_C_LABEL(curpcb)@l(1) - addi 1,1,USPACE /* stack is top of user struct */ -1: - bla s_trap -_C_LABEL(alisize) = .-_C_LABEL(alitrap) - -/* - * Similar to the above for DSI - * Has to handle BAT spills - * and standard pagetable spills - */ - .globl _C_LABEL(dsitrap),_C_LABEL(dsisize) - .type _C_LABEL(dsitrap),@function - .type _C_LABEL(dsisize),@object -_C_LABEL(dsitrap): - stmw 28,disisave(0) /* free r28-r31 */ - mfcr 29 /* save CR */ - mfxer 30 /* save XER */ - mtsprg 2,30 /* in SPRG2 */ - mfsrr1 31 /* test kernel mode */ - mtcr 31 - bc 12,17,1f /* branch if PSL_PR is set */ - mfdar 31 /* get fault address */ - rlwinm 31,31,7,25,28 /* get segment * 8 */ - addis 31,31,_C_LABEL(battable)@ha - lwz 30,_C_LABEL(battable)@l(31) /* get batu */ - mtcr 30 - bc 4,30,1f /* branch if supervisor valid is false */ - lwz 31,_C_LABEL(battable)+4@l(31) /* get batl */ -/* We randomly use the highest two bat registers here */ - mftb 28 - andi. 28,28,1 - bne 2f - mtdbatu 2,30 - mtdbatl 2,31 - b 3f -2: - mtdbatu 3,30 - mtdbatl 3,31 -3: - mfsprg 30,2 /* restore XER */ - mtxer 30 - mtcr 29 /* restore CR */ - lmw 28,disisave(0) /* restore r28-r31 */ - rfi /* return to trapped code */ -1: - mflr 28 /* save LR */ - bla s_dsitrap -_C_LABEL(dsisize) = .-_C_LABEL(dsitrap) - -/* - * Similar to the above for ISI - */ - .globl _C_LABEL(isitrap),_C_LABEL(isisize) - .type _C_LABEL(isitrap),@function - .type _C_LABEL(isisize),@object -_C_LABEL(isitrap): - stmw 28,disisave(0) /* free r28-r31 */ - mflr 28 /* save LR */ - mfcr 29 /* save CR */ - mfsrr1 31 /* test kernel mode */ - mtcr 31 - bc 12,17,1f /* branch if PSL_PR is set */ - mfsrr0 31 /* get fault address */ - rlwinm 31,31,7,25,28 /* get segment * 8 */ - addis 31,31,_C_LABEL(battable)@ha - lwz 30,_C_LABEL(battable)@l(31) /* get batu */ - mtcr 30 - bc 4,30,1f /* branch if supervisor valid is false */ - mtibatu 3,30 - lwz 30,_C_LABEL(battable)+4@l(31) /* get batl */ - mtibatl 3,30 - mtcr 29 /* restore CR */ - lmw 28,disisave(0) /* restore r28-r31 */ - rfi /* return to trapped code */ -1: - bla s_isitrap -_C_LABEL(isisize) = .-_C_LABEL(isitrap) - -/* - * This one for the external interrupt handler. - */ - .globl _C_LABEL(extint),_C_LABEL(extsize) - .type _C_LABEL(extint),@function - .type _C_LABEL(extsize),@object -_C_LABEL(extint): - mtsprg 1,1 /* save SP */ - stmw 28,tempsave(0) /* free r28-r31 */ - mflr 28 /* save LR */ - mfcr 29 /* save CR */ - mfxer 30 /* save XER */ - lis 1,intstk+INTSTK@ha /* get interrupt stack */ - addi 1,1,intstk+INTSTK@l - lwz 31,0(1) /* were we already running on intstk? */ - addic. 31,31,1 - stw 31,0(1) - beq 1f - mfsprg 1,1 /* yes, get old SP */ -1: - ba extintr -_C_LABEL(extsize) = .-_C_LABEL(extint) - -/* - * And this one for the decrementer interrupt handler. - */ - .globl _C_LABEL(decrint),_C_LABEL(decrsize) - .type _C_LABEL(decrint),@function - .type _C_LABEL(decrsize),@object -_C_LABEL(decrint): - mtsprg 1,1 /* save SP */ - stmw 28,tempsave(0) /* free r28-r31 */ - mflr 28 /* save LR */ - mfcr 29 /* save CR */ - mfxer 30 /* save XER */ - lis 1,intstk+INTSTK@ha /* get interrupt stack */ - addi 1,1,intstk+INTSTK@l - lwz 31,0(1) /* were we already running on intstk? */ - addic. 31,31,1 - stw 31,0(1) - beq 1f - mfsprg 1,1 /* yes, get old SP */ -1: - ba decrintr -_C_LABEL(decrsize) = .-_C_LABEL(decrint) - -/* - * Now the tlb software load for 603 processors: - * (Code essentially from the 603e User Manual, Chapter 5) - */ -#define DMISS 976 -#define DCMP 977 -#define HASH1 978 -#define HASH2 979 -#define IMISS 980 -#define ICMP 981 -#define RPA 982 - -#define bdneq bdnzf 2, -#define tlbli .long 0x7c0007e4+0x800* -#define tlbld .long 0x7c0007a4+0x800* - - .globl _C_LABEL(tlbimiss),_C_LABEL(tlbimsize) - .type _C_LABEL(tlbimiss),@function - .type _C_LABEL(tlbimsize),@object -_C_LABEL(tlbimiss): - mfspr 2,HASH1 /* get first pointer */ - li 1,8 - mfctr 0 /* save counter */ - mfspr 3,ICMP /* get first compare value */ - addi 2,2,-8 /* predec pointer */ -1: - mtctr 1 /* load counter */ -2: - lwzu 1,8(2) /* get next pte */ - cmpl 0,1,3 /* see if found pte */ - bdneq 2b /* loop if not eq */ - bne 3f /* not found */ - lwz 1,4(2) /* load tlb entry lower word */ - andi. 3,1,8 /* check G-bit */ - bne 4f /* if guarded, take ISI */ - mtctr 0 /* restore counter */ - mfspr 0,IMISS /* get the miss address for the tlbli */ - mfsrr1 3 /* get the saved cr0 bits */ - mtcrf 0x80,3 /* and restore */ - ori 1,1,0x100 /* set the reference bit */ - mtspr RPA,1 /* set the pte */ - srwi 1,1,8 /* get byte 7 of pte */ - tlbli 0 /* load the itlb */ - stb 1,6(2) /* update page table */ - rfi - -3: /* not found in pteg */ - andi. 1,3,0x40 /* have we already done second hash? */ - bne 5f - mfspr 2,HASH2 /* get the second pointer */ - ori 3,3,0x40 /* change the compare value */ - li 1,8 - addi 2,2,-8 /* predec pointer */ - b 1b -4: /* guarded */ - mfsrr1 3 - andi. 2,3,0xffff /* clean upper srr1 */ - addis 2,2,0x800 /* set srr<4> to flag prot violation */ - b 6f -5: /* not found anywhere */ - mfsrr1 3 - andi. 2,3,0xffff /* clean upper srr1 */ - addis 2,2,0x4000 /* set srr1<1> to flag pte not found */ -6: - mtctr 0 /* restore counter */ - mtsrr1 2 - mfmsr 0 - xoris 0,0,2 /* flip the msr<tgpr> bit */ - mtcrf 0x80,3 /* restore cr0 */ - mtmsr 0 /* now with native gprs */ - isync - ba EXC_ISI -_C_LABEL(tlbimsize) = .-_C_LABEL(tlbimiss) - - .globl _C_LABEL(tlbdlmiss),_C_LABEL(tlbdlmsize) - .type _C_LABEL(tlbdlmiss),@function - .type _C_LABEL(tlbdlmsize),@object -_C_LABEL(tlbdlmiss): - mfspr 2,HASH1 /* get first pointer */ - li 1,8 - mfctr 0 /* save counter */ - mfspr 3,DCMP /* get first compare value */ - addi 2,2,-8 /* predec pointer */ -1: - mtctr 1 /* load counter */ -2: - lwzu 1,8(2) /* get next pte */ - cmpl 0,1,3 /* see if found pte */ - bdneq 2b /* loop if not eq */ - bne 3f /* not found */ - lwz 1,4(2) /* load tlb entry lower word */ - mtctr 0 /* restore counter */ - mfspr 0,DMISS /* get the miss address for the tlbld */ - mfsrr1 3 /* get the saved cr0 bits */ - mtcrf 0x80,3 /* and restore */ - ori 1,1,0x100 /* set the reference bit */ - mtspr RPA,1 /* set the pte */ - srwi 1,1,8 /* get byte 7 of pte */ - tlbld 0 /* load the dtlb */ - stb 1,6(2) /* update page table */ - rfi - -3: /* not found in pteg */ - andi. 1,3,0x40 /* have we already done second hash? */ - bne 5f - mfspr 2,HASH2 /* get the second pointer */ - ori 3,3,0x40 /* change the compare value */ - li 1,8 - addi 2,2,-8 /* predec pointer */ - b 1b -5: /* not found anywhere */ - mfsrr1 3 - lis 1,0x4000 /* set dsisr<1> to flag pte not found */ - mtctr 0 /* restore counter */ - andi. 2,3,0xffff /* clean upper srr1 */ - mtsrr1 2 - mtdsisr 1 /* load the dsisr */ - mfspr 1,DMISS /* get the miss address */ - mtdar 1 /* put in dar */ - mfmsr 0 - xoris 0,0,2 /* flip the msr<tgpr> bit */ - mtcrf 0x80,3 /* restore cr0 */ - mtmsr 0 /* now with native gprs */ - isync - ba EXC_DSI -_C_LABEL(tlbdlmsize) = .-_C_LABEL(tlbdlmiss) - - .globl _C_LABEL(tlbdsmiss),_C_LABEL(tlbdsmsize) - .type _C_LABEL(tlbdsmiss),@function - .type _C_LABEL(tlbdsmsize),@object -_C_LABEL(tlbdsmiss): - mfspr 2,HASH1 /* get first pointer */ - li 1,8 - mfctr 0 /* save counter */ - mfspr 3,DCMP /* get first compare value */ - addi 2,2,-8 /* predec pointer */ -1: - mtctr 1 /* load counter */ -2: - lwzu 1,8(2) /* get next pte */ - cmpl 0,1,3 /* see if found pte */ - bdneq 2b /* loop if not eq */ - bne 3f /* not found */ - lwz 1,4(2) /* load tlb entry lower word */ - andi. 3,1,0x80 /* check the C-bit */ - beq 4f -5: - mtctr 0 /* restore counter */ - mfspr 0,DMISS /* get the miss address for the tlbld */ - mfsrr1 3 /* get the saved cr0 bits */ - mtcrf 0x80,3 /* and restore */ - mtspr RPA,1 /* set the pte */ - tlbld 0 /* load the dtlb */ - rfi - -3: /* not found in pteg */ - andi. 1,3,0x40 /* have we already done second hash? */ - bne 5f - mfspr 2,HASH2 /* get the second pointer */ - ori 3,3,0x40 /* change the compare value */ - li 1,8 - addi 2,2,-8 /* predec pointer */ - b 1b -4: /* found, but C-bit = 0 */ - rlwinm. 3,1,30,0,1 /* test PP */ - bge- 7f - andi. 3,1,1 - beq+ 8f -9: /* found, but protection violation (PP==00)*/ - mfsrr1 3 - lis 1,0xa00 /* indicate protection violation on store */ - b 1f -7: /* found, PP=1x */ - mfspr 3,DMISS /* get the miss address */ - mfsrin 1,3 /* get the segment register */ - mfsrr1 3 - rlwinm 3,3,18,31,31 /* get PR-bit */ - rlwnm. 2,2,3,1,1 /* get the key */ - bne- 9b /* protection violation */ -8: /* found, set reference/change bits */ - lwz 1,4(2) /* reload tlb entry */ - ori 1,1,0x180 - sth 1,6(2) - b 5b -5: /* not found anywhere */ - mfsrr1 3 - lis 1,0x4200 /* set dsisr<1> to flag pte not found */ - /* dsisr<6> to flag store */ -1: - mtctr 0 /* restore counter */ - andi. 2,3,0xffff /* clean upper srr1 */ - mtsrr1 2 - mtdsisr 1 /* load the dsisr */ - mfspr 1,DMISS /* get the miss address */ - mtdar 1 /* put in dar */ - mfmsr 0 - xoris 0,0,2 /* flip the msr<tgpr> bit */ - mtcrf 0x80,3 /* restore cr0 */ - mtmsr 0 /* now with native gprs */ - isync - ba EXC_DSI -_C_LABEL(tlbdsmsize) = .-_C_LABEL(tlbdsmiss) - -#ifdef DDB -#define ddbsave 0xde0 /* primary save area for DDB */ -/* - * In case of DDB we want a separate trap catcher for it - */ - .local ddbstk - .comm ddbstk,INTSTK,8 /* ddb stack */ - - .globl _C_LABEL(ddblow),_C_LABEL(ddbsize) -_C_LABEL(ddblow): - mtsprg 1,1 /* save SP */ - stmw 28,ddbsave(0) /* free r28-r31 */ - mflr 28 /* save LR */ - mfcr 29 /* save CR */ - lis 1,ddbstk+INTSTK@ha /* get new SP */ - addi 1,1,ddbstk+INTSTK@l - bla ddbtrap -_C_LABEL(ddbsize) = .-_C_LABEL(ddblow) -#endif /* DDB */ - - -#if NIPKDB > 0 -#define ipkdbsave 0xde0 /* primary save area for IPKDB */ -/* - * In case of IPKDB we want a separate trap catcher for it - */ -.lcomm ipkdbstk,INTSTK /* ipkdb stack */ - - .globl _C_LABEL(ipkdblow),_C_LABEL(ipkdbsize) - .type _C_LABEL(ipkdblow),@function - .type _C_LABEL(ipkdbsize),@object -_C_LABEL(ipkdblow): - mtsprg 1,1 /* save SP */ - stmw 28,ipkdbsave(0) /* free r28-r31 */ - lis 1,ipkdbstk+INTSTK@ha /* get new SP */ - addi 1,1,ipkdbstk+INTSTK@l - mflr 28 - mfcr 29 - bla ipkdbtrap -_C_LABEL(ipkdbsize) = .-_C_LABEL(ipkdblow) -#endif /* NIPKDB > 0 */ - -/* - * FRAME_SETUP assumes: - * SPRG1 SP (1) - * savearea r28-r31,DAR,DSISR (DAR & DSISR only for DSI traps) - * 28 LR - * 29 CR - * 1 kernel stack - * LR trap type - * SRR0/1 as at start of trap - */ -#define FRAME_SETUP(savearea) \ -/* Have to enable translation to allow access of kernel stack: */ \ - mfsrr0 30; \ - mfsrr1 31; \ - stmw 30,savearea+24(0); \ - mfmsr 30; \ - ori 30,30,(PSL_DR|PSL_IR); \ - mtmsr 30; \ - isync; \ - mfsprg 31,1; \ - stwu 31,-FRAMELEN(1); \ - stw 0,FRAME_0+8(1); \ - stw 31,FRAME_1+8(1); \ - stw 28,FRAME_LR+8(1); \ - stw 29,FRAME_CR+8(1); \ - lmw 28,savearea(0); \ - stmw 2,FRAME_2+8(1); \ - lmw 28,savearea+16(0); \ - mfxer 3; \ - mfctr 4; \ - mflr 5; \ - andi. 5,5,0xff00; \ - stw 3,FRAME_XER+8(1); \ - stw 4,FRAME_CTR+8(1); \ - stw 5,FRAME_EXC+8(1); \ - stw 28,FRAME_DAR+8(1); \ - stw 29,FRAME_DSISR+8(1); \ - stw 30,FRAME_SRR0+8(1); \ - stw 31,FRAME_SRR1+8(1) - -#define FRAME_LEAVE(savearea) \ -/* Now restore regs: */ \ - lwz 2,FRAME_SRR0+8(1); \ - lwz 3,FRAME_SRR1+8(1); \ - lwz 4,FRAME_CTR+8(1); \ - lwz 5,FRAME_XER+8(1); \ - lwz 6,FRAME_LR+8(1); \ - lwz 7,FRAME_CR+8(1); \ - stw 2,savearea(0); \ - stw 3,savearea+4(0); \ - mtctr 4; \ - mtxer 5; \ - mtlr 6; \ - mtsprg 1,7; /* save cr */ \ - lmw 2,FRAME_2+8(1); \ - lwz 0,FRAME_0+8(1); \ - lwz 1,FRAME_1+8(1); \ - mtsprg 2,2; /* save r2 & r3 */ \ - mtsprg 3,3; \ -/* Disable translation, machine check and recoverability: */ \ - mfmsr 2; \ - lis 3,(PSL_DR|PSL_IR|PSL_ME|PSL_RI)@ha; \ - addi 3,3,(PSL_DR|PSL_IR|PSL_ME|PSL_RI)@l; \ - andc 2,2,3; \ - mtmsr 2; \ - isync; \ -/* Decide whether we return to user mode: */ \ - lwz 3,savearea+4(0); \ - mtcr 3; \ - bc 4,17,1f; /* branch if PSL_PR is false */ \ -/* Restore user & kernel access SR: */ \ - lis 2,_C_LABEL(curpm)@ha; /* get real address of pmap */ \ - lwz 2,_C_LABEL(curpm)@l(2); \ - lwz 3,PM_USRSR(2); \ - mtsr USER_SR,3; \ - lwz 3,PM_KERNELSR(2); \ - mtsr KERNEL_SR,3; \ -1: mfsprg 2,1; /* restore cr */ \ - mtcr 2; \ - lwz 2,savearea(0); \ - lwz 3,savearea+4(0); \ - mtsrr0 2; \ - mtsrr1 3; \ - mfsprg 2,2; /* restore r2 & r3 */ \ - mfsprg 3,3 - -/* - * Preamble code for DSI/ISI traps - */ -disitrap: - lmw 30,disisave(0) - stmw 30,tempsave(0) - lmw 30,disisave+8(0) - stmw 30,tempsave+8(0) - mfdar 30 - mfdsisr 31 - stmw 30,tempsave+16(0) -realtrap: -/* Test whether we already had PR set */ - mfsrr1 1 - mtcr 1 - mfsprg 1,1 /* restore SP (might have been overwritten) */ - bc 4,17,s_trap /* branch if PSL_PR is false */ - lis 1,_C_LABEL(curpcb)@ha - lwz 1,_C_LABEL(curpcb)@l(1) - addi 1,1,USPACE /* stack is top of user struct */ -/* - * Now the common trap catching code. - */ -s_trap: -/* First have to enable KERNEL mapping */ - lis 31,KERNEL_SEGMENT@ha - addi 31,31,KERNEL_SEGMENT@l - mtsr KERNEL_SR,31 - FRAME_SETUP(tempsave) -/* Now we can recover interrupts again: */ - mfmsr 7 - ori 7,7,(PSL_EE|PSL_ME|PSL_RI) - mtmsr 7 - isync -/* Call C trap code: */ -trapagain: - addi 3,1,8 - bl _C_LABEL(trap) -trapexit: -/* Disable interrupts: */ - mfmsr 3 - andi. 3,3,~PSL_EE@l - mtmsr 3 -/* Test AST pending: */ - lwz 5,FRAME_SRR1+8(1) - mtcr 5 - bc 4,17,1f /* branch if PSL_PR is false */ - lis 3,_C_LABEL(astpending)@ha - lwz 4,_C_LABEL(astpending)@l(3) - andi. 4,4,1 - beq 1f - li 6,EXC_AST - stw 6,FRAME_EXC+8(1) - b trapagain -1: - FRAME_LEAVE(tempsave) - rfi - -/* - * Child comes here at the end of a fork. - * Mostly similar to the above. - */ - .globl _C_LABEL(fork_trampoline) - .type _C_LABEL(fork_trampoline),@function -_C_LABEL(fork_trampoline): - xor 3,3,3 - bl _C_LABEL(lcsplx) - mtlr 31 - mr 3,30 - blrl /* jump indirect to r31 */ - b trapexit - -/* - * DSI second stage fault handler - */ -s_dsitrap: - mfdsisr 31 /* test whether this may be a spill fault */ - mtcr 31 - mtsprg 1,1 /* save SP */ - bc 4,1,disitrap /* branch if table miss is false */ - lis 1,spillstk+SPILLSTK@ha - addi 1,1,spillstk+SPILLSTK@l /* get spill stack */ - stwu 1,-52(1) - stw 0,48(1) /* save non-volatile registers */ - stw 3,44(1) - stw 4,40(1) - stw 5,36(1) - stw 6,32(1) - stw 7,28(1) - stw 8,24(1) - stw 9,20(1) - stw 10,16(1) - stw 11,12(1) - stw 12,8(1) - mflr 30 /* save trap type */ - mfctr 31 /* & CTR */ - mfdar 3 -s_pte_spill: - bl _C_LABEL(pte_spill) /* try a spill */ - or. 3,3,3 - mtctr 31 /* restore CTR */ - mtlr 30 /* and trap type */ - mfsprg 31,2 /* get saved XER */ - mtxer 31 /* restore XER */ - lwz 12,8(1) /* restore non-volatile registers */ - lwz 11,12(1) - lwz 10,16(1) - lwz 9,20(1) - lwz 8,24(1) - lwz 7,28(1) - lwz 6,32(1) - lwz 5,36(1) - lwz 4,40(1) - lwz 3,44(1) - lwz 0,48(1) - beq disitrap - mfsprg 1,1 /* restore SP */ - mtcr 29 /* restore CR */ - mtlr 28 /* restore LR */ - lmw 28,disisave(0) /* restore r28-r31 */ - rfi /* return to trapped code */ - -/* - * ISI second stage fault handler - */ -s_isitrap: - mfsrr1 31 /* test whether this may be a spill fault */ - mtcr 31 - mtsprg 1,1 /* save SP */ - bc 4,1,disitrap /* branch if table miss is false */ - lis 1,spillstk+SPILLSTK@ha - addi 1,1,spillstk+SPILLSTK@l /* get spill stack */ - stwu 1,-52(1) - stw 0,48(1) /* save non-volatile registers */ - stw 3,44(1) - stw 4,40(1) - stw 5,36(1) - stw 6,32(1) - stw 7,28(1) - stw 8,24(1) - stw 9,20(1) - stw 10,16(1) - stw 11,12(1) - stw 12,8(1) - mfxer 30 /* save XER */ - mtsprg 2,30 - mflr 30 /* save trap type */ - mfctr 31 /* & ctr */ - mfsrr0 3 - b s_pte_spill /* above */ - -/* - * External interrupt second level handler - */ -#define INTRENTER \ -/* Save non-volatile registers: */ \ - stwu 1,-88(1); /* temporarily */ \ - stw 0,84(1); \ - mfsprg 0,1; /* get original SP */ \ - stw 0,0(1); /* and store it */ \ - stw 3,80(1); \ - stw 4,76(1); \ - stw 5,72(1); \ - stw 6,68(1); \ - stw 7,64(1); \ - stw 8,60(1); \ - stw 9,56(1); \ - stw 10,52(1); \ - stw 11,48(1); \ - stw 12,44(1); \ - stw 28,40(1); /* saved LR */ \ - stw 29,36(1); /* saved CR */ \ - stw 30,32(1); /* saved XER */ \ - lmw 28,tempsave(0); /* restore r28-r31 */ \ - mfctr 6; \ - lis 5,_C_LABEL(intr_depth)@ha; \ - lwz 5,_C_LABEL(intr_depth)@l(5); \ - mfsrr0 4; \ - mfsrr1 3; \ - stw 6,28(1); \ - stw 5,20(1); \ - stw 4,12(1); \ - stw 3,8(1); \ -/* interrupts are recoverable here, and enable translation */ \ - lis 3,(KERNEL_SEGMENT|SR_SUKEY|SR_PRKEY)@ha; \ - addi 3,3,(KERNEL_SEGMENT|SR_SUKEY|SR_PRKEY)@l; \ - mtsr KERNEL_SR,3; \ - mfmsr 5; \ - ori 5,5,(PSL_IR|PSL_DR|PSL_RI); \ - mtmsr 5; \ - isync - - .globl _C_LABEL(extint_call) - .type _C_LABEL(extint_call),@function -extintr: - INTRENTER -_C_LABEL(extint_call): - bl _C_LABEL(extint_call) /* to be filled in later */ -intr_exit: -/* Disable interrupts (should already be disabled) and MMU here: */ - mfmsr 3 - andi. 3,3,~(PSL_EE|PSL_ME|PSL_RI|PSL_DR|PSL_IR)@l - mtmsr 3 - isync -/* restore possibly overwritten registers: */ - lwz 12,44(1) - lwz 11,48(1) - lwz 10,52(1) - lwz 9,56(1) - lwz 8,60(1) - lwz 7,64(1) - lwz 6,8(1) - lwz 5,12(1) - lwz 4,28(1) - lwz 3,32(1) - mtsrr1 6 - mtsrr0 5 - mtctr 4 - mtxer 3 -/* Returning to user mode? */ - mtcr 6 /* saved SRR1 */ - bc 4,17,1f /* branch if PSL_PR is false */ - lis 3,_C_LABEL(curpm)@ha /* get current pmap real address */ - lwz 3,_C_LABEL(curpm)@l(3) - lwz 3,PM_KERNELSR(3) - mtsr KERNEL_SR,3 /* Restore kernel SR */ - lis 3,_C_LABEL(astpending)@ha /* Test AST pending */ - lwz 4,_C_LABEL(astpending)@l(3) - andi. 4,4,1 - beq 1f -/* Setup for entry to realtrap: */ - lwz 3,0(1) /* get saved SP */ - mtsprg 1,3 - li 6,EXC_AST - stmw 28,tempsave(0) /* establish tempsave again */ - mtlr 6 - lwz 28,40(1) /* saved LR */ - lwz 29,36(1) /* saved CR */ - lwz 6,68(1) - lwz 5,72(1) - lwz 4,76(1) - lwz 3,80(1) - lwz 0,84(1) - lis 30,_C_LABEL(intr_depth)@ha /* adjust reentrancy count */ - lwz 31,_C_LABEL(intr_depth)@l(30) - addi 31,31,-1 - stw 31,_C_LABEL(intr_depth)@l(30) - b realtrap -1: -/* Here is the normal exit of extintr: */ - lwz 5,36(1) - lwz 6,40(1) - mtcr 5 - mtlr 6 - lwz 6,68(1) - lwz 5,72(1) - lis 3,_C_LABEL(intr_depth)@ha /* adjust reentrancy count */ - lwz 4,_C_LABEL(intr_depth)@l(3) - addi 4,4,-1 - stw 4,_C_LABEL(intr_depth)@l(3) - lwz 4,76(1) - lwz 3,80(1) - lwz 0,84(1) - lwz 1,0(1) - rfi - -/* - * Decrementer interrupt second level handler - */ -decrintr: - INTRENTER - addi 3,1,8 /* intr frame */ - bl _C_LABEL(decr_intr) - b intr_exit - -#if NIPKDB > 0 -/* - * Deliberate entry to ipkdbtrap - */ - .globl _C_LABEL(ipkdb_trap) - .type _C_LABEL(ipkdb_trap),@function -_C_LABEL(ipkdb_trap): - - mtsprg 2,2 - mfmsr 3 - mtsrr1 3 - andi. 3,3,~(PSL_EE|PSL_ME)@l - mtmsr 3 /* disable interrupts */ - isync - stmw 28,ipkdbsave(0) - mflr 28 - li 29,EXC_BPT - mtlr 29 - mfcr 29 - mtsrr0 28 - -/* - * Now the ipkdb trap catching code. - */ -ipkdbtrap: - FRAME_SETUP(ipkdbsave) -/* Call C trap code: */ - addi 3,1,8 - bl _C_LABEL(ipkdb_trap_glue) - or. 3,3,3 - bne ipkdbleave -/* This wasn't for IPKDB, so switch to real trap: */ - lwz 3,FRAME_EXC+8(1) /* save exception */ - stw 3,ipkdbsave+8(0) - FRAME_LEAVE(ipkdbsave) - mtsprg 1,1 /* prepare for entrance to realtrap */ - stmw 28,tempsave(0) - mflr 28 - mfcr 29 - lwz 31,ipkdbsave+8(0) - mtlr 31 - b realtrap -ipkdbleave: - FRAME_LEAVE(ipkdbsave) - rfi - -ipkdbfault: - ba _C_LABEL(ipkdbfault) -_C_LABEL(ipkdbfault): - mfsrr0 3 - addi 3,3,4 - mtsrr0 3 - li 3,-1 - rfi - -/* - * int ipkdbfbyte(unsigned char *p) - */ - .globl _C_LABEL(ipkdbfbyte) - .type _C_LABEL(ipkdbfbyte),@function -_C_LABEL(ipkdbfbyte): - li 9,EXC_DSI /* establish new fault routine */ - lwz 5,0(9) - lis 6,ipkdbfault@ha - lwz 6,ipkdbfault@l(6) - stw 6,0(9) -#ifdef IPKDBUSERHACK - lis 8,_C_LABEL(ipkdbsr)@ha - lwz 8,_C_LABEL(ipkdbsr)@l(8) - mtsr USER_SR,8 - isync -#endif - dcbst 0,9 /* flush data... */ - sync - icbi 0,9 /* and instruction caches */ - lbz 3,0(3) /* fetch data */ - stw 5,0(9) /* restore previous fault handler */ - dcbst 0,9 /* and flush data... */ - sync - icbi 0,9 /* and instruction caches */ - blr - -/* - * int ipkdbsbyte(unsigned char *p, int c) - */ - .globl _C_LABEL(ipkdbsbyte) - .type _C_LABEL(ipkdbsbyte),@function -_C_LABEL(ipkdbsbyte): - li 9,EXC_DSI /* establish new fault routine */ - lwz 5,0(9) - lis 6,ipkdbfault@ha - lwz 6,ipkdbfault@l(6) - stw 6,0(9) -#ifdef IPKDBUSERHACK - lis 8,_C_LABEL(ipkdbsr)@ha - lwz 8,_C_LABEL(ipkdbsr)@l(8) - mtsr USER_SR,8 - isync -#endif - dcbst 0,9 /* flush data... */ - sync - icbi 0,9 /* and instruction caches */ - mr 6,3 - xor 3,3,3 - stb 4,0(6) - dcbst 0,6 /* Now do appropriate flushes to data... */ - sync - icbi 0,6 /* and instruction caches */ - stw 5,0(9) /* restore previous fault handler */ - dcbst 0,9 /* and flush data... */ - sync - icbi 0,9 /* and instruction caches */ - blr -#endif /* NIPKDB > 0 */ - -/* - * int setfault() - * - * Similar to setjmp to setup for handling faults on accesses to user memory. - * Any routine using this may only call bcopy, either the form below, - * or the (currently used) C code optimized, so it doesn't use any non-volatile - * registers. - */ - .globl _C_LABEL(setfault) - .type _C_LABEL(setfault),@function -_C_LABEL(setfault): - mflr 0 - mfcr 12 - mfmsr 2 - lis 4,_C_LABEL(curpcb)@ha - lwz 4,_C_LABEL(curpcb)@l(4) - stw 3,PCB_FAULT(4) - stw 0,0(3) - stw 2,4(3) - stw 1,8(3) - stmw 12,12(3) - xor 3,3,3 - blr - -/* - * The following code gets copied to the top of the user stack on process - * execution. It does signal trampolining on signal delivery. - * - * On entry r1 points to a struct sigframe at bottom of current stack. - * All other registers are unchanged. - */ - .globl _C_LABEL(sigcode),_C_LABEL(esigcode) - .type _C_LABEL(sigcode),@function - .type _C_LABEL(esigcode),@function -_C_LABEL(sigcode): - addi 1,1,-16 /* reserved space for callee */ - blrl - addi 3,1,16+8 /* compute &sf_sc */ - li 0,SYS_sigreturn - sc /* sigreturn(scp) */ - li 0,SYS_exit - sc /* exit(errno) */ -_C_LABEL(esigcode): - - - - .data - .globl _C_LABEL(intrnames) - .type _C_LABEL(intrnames),@object - .globl _C_LABEL(eintrnames) - .type _C_LABEL(eintrnames),@object -_C_LABEL(intrnames): - .string "irq0" "irq1" "irq2" "irq3" - .string "irq4" "irq5" "irq6" "irq7" - .string "irq8" "irq9" "irq10" "irq11" - .string "irq12" "irq13" "irq14" "irq15" - .string "irq16" "irq17" "irq18" "irq19" - .string "irq20" "irq21" "irq22" "irq23" - .string "irq24" "irq25" "irq26" "irq27" - .string "irq28" "irq29" "irq30" "irq31" - .string "irq32" "irq33" "irq34" "irq35" - .string "irq36" "irq37" "irq38" "irq39" - .string "irq40" "irq41" "irq42" "irq43" - .string "irq44" "irq45" "irq46" "irq47" - .string "irq48" "irq49" "irq50" "irq51" - .string "irq52" "irq53" "irq54" "irq55" - .string "irq56" "irq57" "irq58" "irq59" - .string "irq60" "irq61" "irq62" "irq63" - .string "clock" - .space 512 -_C_LABEL(eintrnames): - .align 4 - .globl _C_LABEL(intrcnt) - .type _C_LABEL(intrcnt),@object - .globl _C_LABEL(eintrcnt) - .type _C_LABEL(eintrcnt),@object -_C_LABEL(intrcnt): - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0,0,0,0 - .long 0 -_C_LABEL(eintrcnt): - -#ifdef DDB -/* - * Deliberate entry to ddbtrap - */ - .globl _C_LABEL(ddb_trap) -_C_LABEL(ddb_trap): - mtsprg 1,1 - mfmsr 3 - mtsrr1 3 - andi. 3,3,~(PSL_EE|PSL_ME)@l - mtmsr 3 /* disable interrupts */ - isync - stmw 28,ddbsave(0) - mflr 28 - li 29,EXC_BPT - mtlr 29 - mfcr 29 - mtsrr0 28 - -/* - * Now the ddb trap catching code. - */ -ddbtrap: - FRAME_SETUP(ddbsave) -/* Call C trap code: */ - addi 3,1,8 - bl _C_LABEL(ddb_trap_glue) - or. 3,3,3 - bne ddbleave -/* This wasn't for DDB, so switch to real trap: */ - lwz 3,FRAME_EXC+8(1) /* save exception */ - stw 3,ddbsave+8(0) - FRAME_LEAVE(ddbsave) - mtsprg 1,1 /* prepare for entrance to realtrap */ - stmw 28,tempsave(0) - mflr 28 - mfcr 29 - lwz 31,ddbsave+8(0) - mtlr 31 - b realtrap -ddbleave: - FRAME_LEAVE(ddbsave) - rfi -#endif /* DDB */ - diff --git a/sys/arch/powerpc/powerpc/ofwreal.S b/sys/arch/powerpc/powerpc/ofwreal.S deleted file mode 100644 index 01fa1f42452..00000000000 --- a/sys/arch/powerpc/powerpc/ofwreal.S +++ /dev/null @@ -1,450 +0,0 @@ -/* $OpenBSD: ofwreal.S,v 1.5 1999/07/05 20:56:26 rahnds Exp $ */ -/* $NetBSD: ofwreal.S,v 1.1 1996/09/30 16:34:51 ws Exp $ */ - -/* - * Copyright (C) 1996 Wolfgang Solfrank. - * Copyright (C) 1996 TooLs GmbH. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * This file provides a real-mode client interface on machines, that - * (incorrectly) only implement virtual mode client interface. - * - * It assumes though, that any actual memory in the machine is - * mapped 1:1 even by the virtual mode OpenFirmware. - * Furthermore it assumes that addresses returned by OpenFirmware are not - * accessed by the client. - * - */ -#include <machine/asm.h> -#include <machine/psl.h> -#include <machine/trap.h> -#include <machine/param.h> - -#define CACHELINE 32 /* Note that this value is really hardwired */ - - .data -ofentry: .long 0 /* actual entry to firmware in virtual mode */ - -#define SRSIZE (16*4+4) -#define SPRGSIZE (4*4) -#define SDR1SIZE 4 -#define MSRSIZE 4 -#define SVSIZE (SRSIZE+SPRGSIZE+SDR1SIZE+MSRSIZE) -#define BATSIZE (16*4) - - .global _C_LABEL(fwcall) -_C_LABEL(fwcall): .long 0 - -.lcomm fwsave,SVSIZE,8 -.lcomm fwbatsave,BATSIZE,8 -.lcomm clsave,SVSIZE,8 -.lcomm clbatsave,BATSIZE,8 -.lcomm ofsrsave,16*4,4 /* 16 words of 4 bytes to store OF segment registers */ -.lcomm srsave,16*4,4 /* 16 words of 4 bytes to swap OF segment registers*/ - .globl _C_LABEL(ofmsr) -_C_LABEL(ofmsr): .long 0 /* area to store msr for openfirmware*/ - - .text -_ENTRY(_C_LABEL(ofw_init)) - mflr 31 /* save return address */ - - mr 13,6 /* save args (only pointer used) */ - lis 8,ofentry@ha - stw 5,ofentry@l(8) /* save virtual mode firmware entry */ - - lis 4,fwcall@ha /* call ofw directly until vm setup */ - stw 5,fwcall@l(4) - - mfmsr 5 - lis 4,_C_LABEL(ofmsr)@ha /* save msr from openfirmware */ - stw 5,_C_LABEL(ofmsr)@l(4) -#if 0 - lis 0,(0x80001ffe)@ha - addi 0,0,(0x80001ffe)@l - mtdbatu 0,0 - lis 0,(0x80000022)@ha - addi 0,0,(0x80000022)@l - mtdbatl 0,0 -#endif - - lis 3,fwsave@ha /* save the mmu values of the firmware */ - addi 3,3,fwsave@l - lis 4,fwbatsave@ha - addi 4,4,fwbatsave@l - bl savemmu - - /* save openfirmware address mappings */ - bl _C_LABEL(save_ofw_mapping) - -#if 0 - /* dont really need the bats from firmware saved, 0 to disable */ - lis 3,fwbatsave@ha - addi 3,3,fwbatsave@l - li 4,64 - li 5,0 -1: subi 4,4,4 - stwx 5,4,3 - cmpi 4,0,0 - bne 1b -#endif - - mr 6,13 /* restore args pointer */ - mtlr 31 /* restore return address */ - blr - -/* - * Save everyting related to the mmu to the saveare pointed to by r3. - */ - .type savemmu,@function -savemmu: - - mr 6,4 /* r4 holds pointer to BAT save area */ - - li 4,0 /* save SRs */ -1: - addis 4,4,-0x10000000@ha - or. 4,4,4 - mfsrin 5,4 - stwu 5,4(3) - bne 1b - - mfibatl 4,0 /* save BATs */ - stw 4,0(6) - mfibatu 4,0 - stw 4,4(6) - mfibatl 4,1 - stw 4,8(6) - mfibatu 4,1 - stw 4,0xc(6) - mfibatl 4,2 - stw 4,0x10(6) - mfibatu 4,2 - stw 4,0x14(6) - mfibatl 4,3 - stw 4,0x18(6) - mfibatu 4,3 - stw 4,0x1c(6) - mfdbatl 4,0 - stw 4,0x20(6) - mfdbatu 4,0 - stw 4,0x24(6) - mfdbatl 4,1 - stw 4,0x28(6) - mfdbatu 4,1 - stw 4,0x2c(6) - mfdbatl 4,2 - stw 4,0x30(6) - mfdbatu 4,2 - stw 4,0x34(6) - mfdbatl 4,3 - stw 4,0x38(6) - mfdbatu 4,3 - stw 4,0x3c(6) - - mfsprg 4,0 /* save SPRGs */ - stw 4,4(3) - mfsprg 4,1 - stw 4,8(3) - mfsprg 4,2 - stw 4,12(3) - mfsprg 4,3 - stw 4,16(3) - - mfsdr1 4 /* save SDR1 */ - stw 4,20(3) - - addi 4,3,24 - - mfmsr 4 - stw 4,24(3) - - sync - isync - - blr - -/* - * Restore everyting related to the mmu from the savearea pointed to by r3. - * and bats pointed to by r4. - */ - .type restoremmu,@function -restoremmu: - - li 0,0 - mtmsr 0 - mr 6,4 /* pointer to sr to restore */ - li 4,0 /* restore SRs */ -1: - lwzu 5,4(3) - addis 4,4,-0x10000000@ha - or. 4,4,4 - mtsrin 5,4 - bne 1b - - mfmsr 4 - lis 5,(PSL_IR|PSL_DR)@h /* turn off MMU */ - ori 5,5,(PSL_IR|PSL_DR)@l /* turn off MMU */ - andc 4,4,5 /* turn off MMU */ - mtmsr 4 - isync - - li 4,0 /* first, invalidate BATs */ - mtibatu 0,4 - mtibatu 1,4 - mtibatu 2,4 - mtibatu 3,4 - mtdbatu 0,4 - mtdbatu 1,4 - mtdbatu 2,4 - mtdbatu 3,4 - - lwz 4,0(6) - mtibatl 0,4 /* restore BATs */ - lwz 4,4(6) - mtibatu 0,4 - lwz 4,8(6) - mtibatl 1,4 - lwz 4,12(6) - mtibatu 1,4 - lwz 4,16(6) - mtibatl 2,4 - lwz 4,20(6) - mtibatu 2,4 - lwz 4,24(6) - mtibatl 3,4 - lwz 4,28(6) - mtibatu 3,4 - lwz 4,32(6) - mtdbatl 0,4 - lwz 4,36(6) - mtdbatu 0,4 - lwz 4,40(6) - mtdbatl 1,4 - lwz 4,44(6) - mtdbatu 1,4 - lwz 4,48(6) - mtdbatl 2,4 - lwz 4,52(6) - mtdbatu 2,4 - lwz 4,56(6) - mtdbatl 3,4 - lwz 4,60(6) - mtdbatu 3,4 - - lwz 4,4(3) - mtsprg 0,4 /* restore SPRGs */ - lwz 4,8(3) - mtsprg 1,4 - lwz 4,12(3) - mtsprg 2,4 - lwz 4,16(3) - mtsprg 3,4 - - sync /* remove everything from tlb */ - lis 4,0x40000@ha - li 5,0x1000 -1: - subf. 4,5,4 - tlbie 4 - bne 1b - - sync - tlbsync - sync - - lwz 4,20(3) - sync - mtsdr1 4 /* restore SDR1 */ - - - /* tlbia */ - sync - li 5,0x40 - mtctr 5 - li 4,0 - 1: - tlbie 4 - addi 4,4,0x1000 - bdnz 1b - sync - tlbsync - sync - - lwz 4,24(3) - mtmsr 4 - isync - - blr - - -_ENTRY(_C_LABEL(fwentry)) - stwu 1,-16(1) - mflr 4 - stw 4,20(1) - stw 3,12(1) /* save arg */ - - lis 3,clsave@ha /* save mmu values of client */ - addi 3,3,clsave@l - lis 4,clbatsave@ha /* save mmu values of client */ - addi 4,4,clbatsave@l - bl savemmu - - lis 3,fwsave@ha /* restore mmu values of firmware */ - addi 3,3,fwsave@l - lis 4,fwbatsave@ha - addi 4,4,fwbatsave@l - bl restoremmu - - lis 3,ofentry@ha - lwz 3,ofentry@l(3) /* get actual firmware entry */ - mtlr 3 - - mfmsr 4 - ori 4,4,PSL_IR|PSL_DR /* turn on MMU */ - mtmsr 4 - isync - - lwz 3,12(1) /* restore arg */ - blrl /* do actual firmware call */ - - stw 3,12(1) /* save return value */ - - lis 3,fwsave@ha /* save mmu values of firmare */ - addi 3,3,fwsave@l /* (might not be necessary, but... */ - lis 4,fwbatsave@ha - addi 4,4,fwbatsave@l - bl savemmu - - lis 3,clsave@ha /* restore mmu values of client */ - addi 3,3,clsave@l - lis 4,clbatsave@ha /* save mmu values of client */ - addi 4,4,clbatsave@l - bl restoremmu - - lwz 4,20(1) - lwz 3,12(1) /* restore return value */ - - mtlr 4 - addi 1,1,16 - blr - -/* - * OpenFirmware entry point - */ -_ENTRY(_C_LABEL(openfirmware)) - stwu 1,-16(1) - mflr 0 /* save return address */ - stw 0,20(1) - - lis 4,fwcall@ha - lwz 4,fwcall@l(4) - - mtlr 4 - blrl - - lwz 0,20(1) - mtlr 0 - lwz 1,0(1) - blr - -/* - * Switch to/from OpenFirmware real mode stack - * - * Note: has to be called as the very first thing in OpenFirmware interface routines. - * E.g.: - * int - * OF_xxx(arg1, arg2) - * type arg1, arg2; - * { - * static struct { - * char *name; - * int nargs; - * int nreturns; - * char *method; - * int arg1; - * int arg2; - * int ret; - * } args = { - * "xxx", - * 2, - * 1, - * }; - * - * ofw_stack(); - * args.arg1 = arg1; - * args.arg2 = arg2; - * if (openfirmware(&args) < 0) - * return -1; - * return args.ret; - * } - */ -.lcomm firmstk,NBPG,16 -.comm _C_LABEL(OF_buf),NBPG,PGOFSET - -_ENTRY(_C_LABEL(ofw_stack)) - mfmsr 8 /* turn off interrupts */ - andi. 0,8,~(PSL_EE|PSL_RI)@l - mtmsr 0 - stw 8,4(1) /* abuse return address slot */ - - lwz 5,0(1) /* get length of stack frame */ - subf 5,1,5 - - lis 7,firmstk+NBPG-8@ha - addi 7,7,firmstk+NBPG-8@l - li 6,0xf - andc 7,7,6 - lis 6,ofw_back@ha - addi 6,6,ofw_back@l - subf 4,5,7 /* make room for stack frame on new stack */ - stwu 1,-16(7) - stw 6,4(7) /* setup return pointer */ - - stw 7,-16(4) - - addi 3,1,8 - addi 1,4,-16 - subi 5,5,8 - subi 4,4,8 - - b _C_LABEL(ofbcopy) /* and copy it */ - - .type ofw_back,@function -ofw_back: - lwz 1,0(1) /* get callers original stack pointer */ - - lwz 0,4(1) /* get saved msr from abused slot */ - mtmsr 0 - - lwz 1,0(1) /* return */ - lwz 0,4(1) - mtlr 0 - blr - |