| /* |
| * 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) |
| |
| #define BREAK_INSTR 0x7d821008 /* twge r2, r2 */ |
| |
| static inline void arch_kgdb_breakpoint(void) |
| { |
| asm(stringify_in_c(.long BREAK_INSTR)); |
| } |
| #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__ */ |
