diff options
Diffstat (limited to 'sys/powerpc/aim')
-rw-r--r-- | sys/powerpc/aim/locore32.S | 13 | ||||
-rw-r--r-- | sys/powerpc/aim/locore64.S | 132 | ||||
-rw-r--r-- | sys/powerpc/aim/ofwmagic.S | 68 |
3 files changed, 0 insertions, 213 deletions
diff --git a/sys/powerpc/aim/locore32.S b/sys/powerpc/aim/locore32.S index 64bf81e..35ea99b 100644 --- a/sys/powerpc/aim/locore32.S +++ b/sys/powerpc/aim/locore32.S @@ -87,9 +87,6 @@ GLOBAL(tmpstk) GLOBAL(esym) .long 0 /* end of symbol table */ -GLOBAL(ofmsr) - .long 0, 0, 0, 0, 0 /* msr/sprg0-3 used in Open Firmware */ - #define INTRCNT_COUNT 256 /* max(HROWPIC_IRQMAX,OPENPIC_IRQMAX) */ GLOBAL(intrnames) .space INTRCNT_COUNT * (MAXCOMLEN + 1) * 2 @@ -99,16 +96,6 @@ GLOBAL(intrcnt) .space INTRCNT_COUNT * 4 * 2 GLOBAL(eintrcnt) -/* - * File-scope for locore.S - */ -idle_u: - .long 0 /* fake uarea during idle after exit */ -openfirmware_entry: - .long 0 /* Open Firmware entry point */ -srsave: - .long 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 - .text .globl btext btext: diff --git a/sys/powerpc/aim/locore64.S b/sys/powerpc/aim/locore64.S index acdc8a1..e71594e 100644 --- a/sys/powerpc/aim/locore64.S +++ b/sys/powerpc/aim/locore64.S @@ -76,7 +76,6 @@ .set kernbase, KERNBASE #define TMPSTKSZ 8192 /* 8K temporary stack */ -#define OFWSTKSZ 4096 /* 4K Open Firmware stack */ /* * Globals @@ -85,14 +84,9 @@ .align 4 GLOBAL(tmpstk) .space TMPSTKSZ -GLOBAL(ofwstk) - .space OFWSTKSZ GLOBAL(esym) .llong 0 /* end of symbol table */ -GLOBAL(ofmsr) - .llong 0, 0, 0, 0, 0 /* msr/sprg0-3 used in Open Firmware */ - #define INTRCNT_COUNT 256 /* max(HROWPIC_IRQMAX,OPENPIC_IRQMAX) */ GLOBAL(intrnames) .space INTRCNT_COUNT * (MAXCOMLEN + 1) * 2 @@ -102,16 +96,6 @@ GLOBAL(intrcnt) .space INTRCNT_COUNT * 4 * 2 GLOBAL(eintrcnt) -/* - * File-scope for locore.S - */ -idle_u: - .llong 0 /* fake uarea during idle after exit */ -openfirmware_entry: - .llong 0 /* Open Firmware entry point */ -srsave: - .llong 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 - .text .globl btext btext: @@ -208,122 +192,6 @@ tocbase: .llong .TOC.@tocbase /* - * Open Firmware Real-mode Entry Point. This is a huge pain. - */ - -ASENTRY(ofw_32bit_mode_entry) - mflr %r0 - std %r0,16(%r1) - stdu %r1,-208(%r1) - - /* - * We need to save the following, because OF's register save/ - * restore code assumes that the contents of registers are - * at most 32 bits wide: lr, cr, r2, r13-r31, the old MSR. These - * get placed in that order in the stack. - */ - - mfcr %r4 - std %r4,48(%r1) - std %r13,56(%r1) - std %r14,64(%r1) - std %r15,72(%r1) - std %r16,80(%r1) - std %r17,88(%r1) - std %r18,96(%r1) - std %r19,104(%r1) - std %r20,112(%r1) - std %r21,120(%r1) - std %r22,128(%r1) - std %r23,136(%r1) - std %r24,144(%r1) - std %r25,152(%r1) - std %r26,160(%r1) - std %r27,168(%r1) - std %r28,176(%r1) - std %r29,184(%r1) - std %r30,192(%r1) - std %r31,200(%r1) - - /* Record the old MSR */ - mfmsr %r6 - - /* read client interface handler */ - lis %r4,openfirmware_entry@ha - ld %r4,openfirmware_entry@l(%r4) - - /* - * Set the MSR to the OF value. This has the side effect of disabling - * exceptions, which is important for the next few steps. - */ - - lis %r5,ofmsr@ha - ld %r5,ofmsr@l(%r5) - mtmsrd %r5 - isync - - /* - * Set up OF stack. This needs to be accessible in real mode and - * use the 32-bit ABI stack frame format. The pointer to the current - * kernel stack is placed at the very top of the stack along with - * the old MSR so we can get them back later. - */ - mr %r5,%r1 - lis %r1,(ofwstk+OFWSTKSZ-32)@ha - addi %r1,%r1,(ofwstk+OFWSTKSZ-32)@l - std %r5,8(%r1) /* Save real stack pointer */ - std %r2,16(%r1) /* Save old TOC */ - std %r6,24(%r1) /* Save old MSR */ - li %r5,0 - stw %r5,4(%r1) - stw %r5,0(%r1) - - /* Finally, branch to OF */ - mtctr %r4 - bctrl - - /* Reload stack pointer and MSR from the OFW stack */ - ld %r6,24(%r1) - ld %r2,16(%r1) - ld %r1,8(%r1) - - /* Now set the real MSR */ - mtmsrd %r6 - isync - - /* Sign-extend the return value from OF */ - extsw %r3,%r3 - - /* Restore all the non-volatile registers */ - ld %r5,48(%r1) - mtcr %r5 - ld %r13,56(%r1) - ld %r14,64(%r1) - ld %r15,72(%r1) - ld %r16,80(%r1) - ld %r17,88(%r1) - ld %r18,96(%r1) - ld %r19,104(%r1) - ld %r20,112(%r1) - ld %r21,120(%r1) - ld %r22,128(%r1) - ld %r23,136(%r1) - ld %r24,144(%r1) - ld %r25,152(%r1) - ld %r26,160(%r1) - ld %r27,168(%r1) - ld %r28,176(%r1) - ld %r29,184(%r1) - ld %r30,192(%r1) - ld %r31,200(%r1) - - /* Restore the stack and link register */ - ld %r1,0(%r1) - ld %r0,16(%r1) - mtlr %r0 - blr - -/* * int setfault() * * Similar to setjmp to setup for handling faults on accesses to user memory. diff --git a/sys/powerpc/aim/ofwmagic.S b/sys/powerpc/aim/ofwmagic.S deleted file mode 100644 index f44f1e5..0000000 --- a/sys/powerpc/aim/ofwmagic.S +++ /dev/null @@ -1,68 +0,0 @@ -/* $FreeBSD$ */ -/* $NetBSD: ofwmagic.S,v 1.2 1997/10/09 08:38:18 jtc Exp $ */ - -/*- - * Copyright (c) 1997 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Jason R. Thorpe. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. - */ - -/* - * Magic note section used by Open Firmware. - */ - - .section ".note" - - /*# note header */ - - /*# length of name */ - .long 8 - - /*# note descriptor size */ - .long 20 - - /*# note type (IEEE 1275) */ - .long 0x1275 - - /*# name of owner */ - .asciz "PowerPC" - .balign 4 - - - /*# note descriptor */ - - /*# real mode (-1) or virtual mode (0) */ - .long 0 - - /*# real-base */ - .long -1 - /*# real-size */ - .long -1 - - /*# virt-base */ - .long -1 - /*# virt-size */ - .long -1 |