projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 33d71d26 | 1 | /* |
| 17ce452f JW |
2 | * The PowerPC (32/64) specific defines / externs for KGDB. Based on |
| 3 | * the previous 32bit and 64bit specific files, which had the following | |
| 4 | * copyrights: | |
| 5 | * | |
| 6 | * PPC64 Mods (C) 2005 Frank Rowand (frowand@mvista.com) | |
| 7 | * PPC Mods (C) 2004 Tom Rini (trini@mvista.com) | |
| 8 | * PPC Mods (C) 2003 John Whitney (john.whitney@timesys.com) | |
| 33d71d26 KG |
9 | * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu) |
| 10 | * | |
| 17ce452f | 11 | * |
| 33d71d26 | 12 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| 17ce452f JW |
13 | * Author: Tom Rini <trini@kernel.crashing.org> |
| 14 | * | |
| 15 | * 2006 (c) MontaVista Software, Inc. This file is licensed under | |
| 16 | * the terms of the GNU General Public License version 2. This program | |
| 17 | * is licensed "as is" without any warranty of any kind, whether express | |
| 18 | * or implied. | |
| 33d71d26 KG |
19 | */ |
| 20 | #ifdef __KERNEL__ | |
| 17ce452f JW |
21 | #ifndef __POWERPC_KGDB_H__ |
| 22 | #define __POWERPC_KGDB_H__ | |
| 33d71d26 KG |
23 | |
| 24 | #ifndef __ASSEMBLY__ | |
| 25 | ||
| 17ce452f JW |
26 | #define BREAK_INSTR_SIZE 4 |
| 27 | #define BUFMAX ((NUMREGBYTES * 2) + 512) | |
| 28 | #define OUTBUFMAX ((NUMREGBYTES * 2) + 512) | |
| fb978ca2 CL |
29 | |
| 30 | #define BREAK_INSTR 0x7d821008 /* twge r2, r2 */ | |
| 31 | ||
| 17ce452f JW |
32 | static inline void arch_kgdb_breakpoint(void) |
| 33 | { | |
| fb978ca2 | 34 | asm(stringify_in_c(.long BREAK_INSTR)); |
| 17ce452f JW |
35 | } |
| 36 | #define CACHE_FLUSH_IS_SAFE 1 | |
| ff10b88b | 37 | #define DBG_MAX_REG_NUM 70 |
| 33d71d26 | 38 | |
| 17ce452f JW |
39 | /* The number bytes of registers we have to save depends on a few |
| 40 | * things. For 64bit we default to not including vector registers and | |
| 41 | * vector state registers. */ | |
| 42 | #ifdef CONFIG_PPC64 | |
| 33d71d26 | 43 | /* |
| 17ce452f JW |
44 | * 64 bit (8 byte) registers: |
| 45 | * 32 gpr, 32 fpr, nip, msr, link, ctr | |
| 46 | * 32 bit (4 byte) registers: | |
| 47 | * ccr, xer, fpscr | |
| 33d71d26 | 48 | */ |
| 17ce452f JW |
49 | #define NUMREGBYTES ((68 * 8) + (3 * 4)) |
| 50 | #define NUMCRITREGBYTES 184 | |
| 51 | #else /* CONFIG_PPC32 */ | |
| 52 | /* On non-E500 family PPC32 we determine the size by picking the last | |
| 53 | * register we need, but on E500 we skip sections so we list what we | |
| 54 | * need to store, and add it up. */ | |
| 55 | #ifndef CONFIG_E500 | |
| 56 | #define MAXREG (PT_FPSCR+1) | |
| 57 | #else | |
| 58 | /* 32 GPRs (8 bytes), nip, msr, ccr, link, ctr, xer, acc (8 bytes), spefscr*/ | |
| 59 | #define MAXREG ((32*2)+6+2+1) | |
| 60 | #endif | |
| 61 | #define NUMREGBYTES (MAXREG * sizeof(int)) | |
| 62 | /* CR/LR, R1, R2, R13-R31 inclusive. */ | |
| 63 | #define NUMCRITREGBYTES (23 * sizeof(int)) | |
| 64 | #endif /* 32/64 */ | |
| 33d71d26 | 65 | #endif /* !(__ASSEMBLY__) */ |
| 17ce452f | 66 | #endif /* !__POWERPC_KGDB_H__ */ |
| 33d71d26 | 67 | #endif /* __KERNEL__ */ |