| /* | |
| * The PowerPC (32/64) specific defines / externs for KGDB. Based on | |
| * the previous 32bit and 64bit specific files, which had the following | |
| * copyrights: | |
| * | |
| * PPC64 Mods (C) 2005 Frank Rowand (frowand@mvista.com) | |
| * PPC Mods (C) 2004 Tom Rini (trini@mvista.com) | |
| * PPC Mods (C) 2003 John Whitney (john.whitney@timesys.com) | |
| * PPC Mods (C) 1998 Michael Tesch (tesch@cs.wisc.edu) | |
| * | |
| * | |
| * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
| * Author: Tom Rini <trini@kernel.crashing.org> | |
| * | |
| * 2006 (c) MontaVista Software, Inc. This file is licensed under | |
| * the terms of the GNU General Public License version 2. This program | |
| * is licensed "as is" without any warranty of any kind, whether express | |
| * or implied. | |
| */ | |
| #ifdef __KERNEL__ | |
| #ifndef __POWERPC_KGDB_H__ | |
| #define __POWERPC_KGDB_H__ | |
| #ifndef __ASSEMBLY__ | |
| #define BREAK_INSTR_SIZE 4 | |
| #define BUFMAX ((NUMREGBYTES * 2) + 512) | |
| #define OUTBUFMAX ((NUMREGBYTES * 2) + 512) | |
| static inline void arch_kgdb_breakpoint(void) | |
| { | |
| asm(".long 0x7d821008"); /* twge r2, r2 */ | |
| } | |
| #define CACHE_FLUSH_IS_SAFE 1 | |
| #define DBG_MAX_REG_NUM 70 | |
| /* The number bytes of registers we have to save depends on a few | |
| * things. For 64bit we default to not including vector registers and | |
| * vector state registers. */ | |
| #ifdef CONFIG_PPC64 | |
| /* | |
| * 64 bit (8 byte) registers: | |
| * 32 gpr, 32 fpr, nip, msr, link, ctr | |
| * 32 bit (4 byte) registers: | |
| * ccr, xer, fpscr | |
| */ | |
| #define NUMREGBYTES ((68 * 8) + (3 * 4)) | |
| #define NUMCRITREGBYTES 184 | |
| #else /* CONFIG_PPC32 */ | |
| /* On non-E500 family PPC32 we determine the size by picking the last | |
| * register we need, but on E500 we skip sections so we list what we | |
| * need to store, and add it up. */ | |
| #ifndef CONFIG_E500 | |
| #define MAXREG (PT_FPSCR+1) | |
| #else | |
| /* 32 GPRs (8 bytes), nip, msr, ccr, link, ctr, xer, acc (8 bytes), spefscr*/ | |
| #define MAXREG ((32*2)+6+2+1) | |
| #endif | |
| #define NUMREGBYTES (MAXREG * sizeof(int)) | |
| /* CR/LR, R1, R2, R13-R31 inclusive. */ | |
| #define NUMCRITREGBYTES (23 * sizeof(int)) | |
| #endif /* 32/64 */ | |
| #endif /* !(__ASSEMBLY__) */ | |
| #endif /* !__POWERPC_KGDB_H__ */ | |
| #endif /* __KERNEL__ */ |