Stephen Rothwell | 7180e3e | 2007-08-22 13:48:37 +1000 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_ISERIES_EXCEPTION_H |
| 2 | #define _ASM_POWERPC_ISERIES_EXCEPTION_H |
| 3 | /* |
| 4 | * Extracted from head_64.S |
| 5 | * |
| 6 | * PowerPC version |
| 7 | * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) |
| 8 | * |
| 9 | * Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP |
| 10 | * Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu> |
| 11 | * Adapted for Power Macintosh by Paul Mackerras. |
| 12 | * Low-level exception handlers and MMU support |
| 13 | * rewritten by Paul Mackerras. |
| 14 | * Copyright (C) 1996 Paul Mackerras. |
| 15 | * |
| 16 | * Adapted for 64bit PowerPC by Dave Engebretsen, Peter Bergner, and |
| 17 | * Mike Corrigan {engebret|bergner|mikejc}@us.ibm.com |
| 18 | * |
| 19 | * This file contains the low-level support and setup for the |
| 20 | * PowerPC-64 platform, including trap and interrupt dispatch. |
| 21 | * |
| 22 | * This program is free software; you can redistribute it and/or |
| 23 | * modify it under the terms of the GNU General Public License |
| 24 | * as published by the Free Software Foundation; either version |
| 25 | * 2 of the License, or (at your option) any later version. |
| 26 | */ |
| 27 | #include <asm/exception.h> |
| 28 | |
| 29 | #define EXCEPTION_PROLOG_ISERIES_1 \ |
| 30 | mfmsr r10; \ |
| 31 | ld r12,PACALPPACAPTR(r13); \ |
| 32 | ld r11,LPPACASRR0(r12); \ |
| 33 | ld r12,LPPACASRR1(r12); \ |
| 34 | ori r10,r10,MSR_RI; \ |
| 35 | mtmsrd r10,1 |
| 36 | |
Stephen Rothwell | 5b072ba | 2007-08-22 13:49:41 +1000 | [diff] [blame] | 37 | #define STD_EXCEPTION_ISERIES(label, area) \ |
Stephen Rothwell | 7180e3e | 2007-08-22 13:48:37 +1000 | [diff] [blame] | 38 | .globl label##_iSeries; \ |
| 39 | label##_iSeries: \ |
| 40 | HMT_MEDIUM; \ |
| 41 | mtspr SPRN_SPRG1,r13; /* save r13 */ \ |
| 42 | EXCEPTION_PROLOG_1(area); \ |
| 43 | EXCEPTION_PROLOG_ISERIES_1; \ |
| 44 | b label##_common |
| 45 | |
Stephen Rothwell | 5b072ba | 2007-08-22 13:49:41 +1000 | [diff] [blame] | 46 | #define MASKABLE_EXCEPTION_ISERIES(label) \ |
Stephen Rothwell | 7180e3e | 2007-08-22 13:48:37 +1000 | [diff] [blame] | 47 | .globl label##_iSeries; \ |
| 48 | label##_iSeries: \ |
| 49 | HMT_MEDIUM; \ |
| 50 | mtspr SPRN_SPRG1,r13; /* save r13 */ \ |
| 51 | EXCEPTION_PROLOG_1(PACA_EXGEN); \ |
| 52 | lbz r10,PACASOFTIRQEN(r13); \ |
| 53 | cmpwi 0,r10,0; \ |
| 54 | beq- label##_iSeries_masked; \ |
| 55 | EXCEPTION_PROLOG_ISERIES_1; \ |
| 56 | b label##_common; \ |
| 57 | |
| 58 | #endif /* _ASM_POWERPC_ISERIES_EXCEPTION_H */ |