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Diffstat (limited to 'arch/ppc/include/asm/ppc_asm.tmpl')
| -rw-r--r-- | arch/ppc/include/asm/ppc_asm.tmpl | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/arch/ppc/include/asm/ppc_asm.tmpl b/arch/ppc/include/asm/ppc_asm.tmpl deleted file mode 100644 index 60c6caf53c..0000000000 --- a/arch/ppc/include/asm/ppc_asm.tmpl +++ /dev/null @@ -1,210 +0,0 @@ -/* - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -/* - * This file contains all the macros and symbols which define - * a PowerPC assembly language environment. - */ -#ifndef __PPC_ASM_TMPL__ -#define __PPC_ASM_TMPL__ - -/* - * These definitions simplify the ugly declarations necessary for GOT - * definitions. - * - * Stolen from prepboot/bootldr.h, (C) 1998 Gabriel Paubert, paubert@iram.es - * - * Uses r14 to access the GOT - */ - -#define START_GOT \ - .section ".got2","aw"; \ -.LCTOC1 = .+32768 - -#define END_GOT \ - .text - -#define GET_GOT \ - bl 1f ; \ - .text 2 ; \ -0: .long .LCTOC1-1f ; \ - .text ; \ -1: mflr r14 ; \ - lwz r0,0b-1b(r14) ; \ - add r14,r0,r14 ; - -#define GOT_ENTRY(NAME) .L_ ## NAME = . - .LCTOC1 ; .long NAME - -#define GOT(NAME) .L_ ## NAME (r14) - -/* Register names */ -#define r0 0 -#define r1 1 -#define r2 2 -#define r3 3 -#define r4 4 -#define r5 5 -#define r6 6 -#define r7 7 -#define r8 8 -#define r9 9 -#define r10 10 -#define r11 11 -#define r12 12 -#define r13 13 -#define r14 14 -#define r15 15 -#define r16 16 -#define r17 17 -#define r18 18 -#define r19 19 -#define r20 20 -#define r21 21 -#define r22 22 -#define r23 23 -#define r24 24 -#define r25 25 -#define r26 26 -#define r27 27 -#define r28 28 -#define r29 29 -#define r30 30 -#define r31 31 - -#define curptr r2 - -#define SYNC \ - sync; \ - isync - -#if defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC8220) - -#define HID0_ICE_BITPOS 16 -#define HID0_DCE_BITPOS 17 - -#endif -/* - * Macros for storing registers into and loading registers from - * exception frames. - */ -#define SAVE_GPR(n, base) stw n,GPR0+4*(n)(base) -#define SAVE_2GPRS(n, base) SAVE_GPR(n, base); SAVE_GPR(n+1, base) -#define SAVE_4GPRS(n, base) SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base) -#define SAVE_8GPRS(n, base) SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base) -#define SAVE_10GPRS(n, base) SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base) -#define REST_GPR(n, base) lwz n,GPR0+4*(n)(base) -#define REST_2GPRS(n, base) REST_GPR(n, base); REST_GPR(n+1, base) -#define REST_4GPRS(n, base) REST_2GPRS(n, base); REST_2GPRS(n+2, base) -#define REST_8GPRS(n, base) REST_4GPRS(n, base); REST_4GPRS(n+4, base) -#define REST_10GPRS(n, base) REST_8GPRS(n, base); REST_2GPRS(n+8, base) - -/* - * GCC sometimes accesses words at negative offsets from the stack - * pointer, although the SysV ABI says it shouldn't. To cope with - * this, we leave this much untouched space on the stack on exception - * entry. - */ -#define STACK_UNDERHEAD 64 - -/* - * Exception entry code. This code runs with address translation - * turned off, i.e. using physical addresses. - * We assume sprg3 has the physical address of the current - * task's thread_struct. - */ -#define EXCEPTION_PROLOG(reg1, reg2) \ - mtspr SPRG0,r20; \ - mtspr SPRG1,r21; \ - mfcr r20; \ - subi r21,r1,INT_FRAME_SIZE+STACK_UNDERHEAD; /* alloc exc. frame */\ - stw r20,_CCR(r21); /* save registers */ \ - stw r22,GPR22(r21); \ - stw r23,GPR23(r21); \ - mfspr r20,SPRG0; \ - stw r20,GPR20(r21); \ - mfspr r22,SPRG1; \ - stw r22,GPR21(r21); \ - mflr r20; \ - stw r20,_LINK(r21); \ - mfctr r22; \ - stw r22,_CTR(r21); \ - mfspr r20,XER; \ - stw r20,_XER(r21); \ - mfspr r20, DAR_DEAR; \ - stw r20,_DAR(r21); \ - mfspr r22,reg1; \ - mfspr r23,reg2; \ - stw r0,GPR0(r21); \ - stw r1,GPR1(r21); \ - stw r2,GPR2(r21); \ - stw r1,0(r21); \ - mr r1,r21; /* set new kernel sp */ \ - SAVE_4GPRS(3, r21); -/* - * Note: code which follows this uses cr0.eq (set if from kernel), - * r21, r22 (SRR0), and r23 (SRR1). - */ - -/* - * Exception vectors. - * - * The data words for `hdlr' and `int_return' are initialized with - * OFFSET values only; they must be relocated first before they can - * be used! - */ -#define COPY_EE(d, s) rlwimi d,s,0,16,16 -#define NOCOPY(d, s) -#define EXC_XFER_TEMPLATE(label, hdlr, msr, copyee) \ - bl 1f; \ -1: mflr r20; \ - lwz r20,(.L_ ## label)-1b+8(r20); \ - mtlr r20; \ - li r20,msr; \ - copyee(r20,r23); \ - rlwimi r20,r23,0,25,25; \ - blrl; \ -.L_ ## label : \ - .long hdlr - _start + _START_OFFSET; \ - .long int_return - _start + _START_OFFSET; \ - .long transfer_to_handler - _start + _START_OFFSET - -#define STD_EXCEPTION(n, label, hdlr) \ - . = n; \ -label: \ - EXCEPTION_PROLOG(SRR0, SRR1); \ - addi r3,r1,STACK_FRAME_OVERHEAD; \ - EXC_XFER_TEMPLATE(label, hdlr, MSR_KERNEL, NOCOPY) \ - -#define CRIT_EXCEPTION(n, label, hdlr) \ - . = n; \ -label: \ - EXCEPTION_PROLOG(CSRR0, CSRR1); \ - addi r3,r1,STACK_FRAME_OVERHEAD; \ - EXC_XFER_TEMPLATE(label, hdlr, \ - MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY) \ - -#define MCK_EXCEPTION(n, label, hdlr) \ - . = n; \ -label: \ - EXCEPTION_PROLOG(MCSRR0, MCSRR1); \ - addi r3,r1,STACK_FRAME_OVERHEAD; \ - EXC_XFER_TEMPLATE(label, hdlr, \ - MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY) \ - -#endif /* __PPC_ASM_TMPL__ */ |