LXR linux-old/include/asm-ppc64/ppcdebug.h

   1#ifndef __PPCDEBUG_H
   2#define __PPCDEBUG_H
   3/********************************************************************
   4 * Author: Adam Litke, IBM Corp
   5 * (c) 2001
   6 *
   7 * This file contains definitions and macros for a runtime debugging
   8 * system for ppc64 (This should also work on 32 bit with a few    
   9 * adjustments.                                                   
  10 *
  11 * This program is free software; you can redistribute it and/or
  12 * modify it under the terms of the GNU General Public License
  13 * as published by the Free Software Foundation; either version
  14 * 2 of the License, or (at your option) any later version.
  15 *
  16 ********************************************************************/
  17
  18#include <linux/config.h>
  19#include <asm/udbg.h>
  20#include <stdarg.h>
  21
  22#define PPCDBG_BITVAL(X)     ((1UL)<<((unsigned long)(X)))
  23
  24/* Defined below are the bit positions of various debug flags in the
  25 * debug_switch variable (defined in naca.h).
  26 * -- When adding new values, please enter them into trace names below -- 
  27 *
  28 * Values 62 & 63 can be used to stress the hardware page table management
  29 * code.  They must be set statically, any attempt to change them dynamically
  30 * would be a very bad idea.
  31 */
  32#define PPCDBG_MMINIT           PPCDBG_BITVAL(0)
  33#define PPCDBG_MM               PPCDBG_BITVAL(1)
  34#define PPCDBG_SYS32            PPCDBG_BITVAL(2)
  35#define PPCDBG_SYS32NI          PPCDBG_BITVAL(3)
  36#define PPCDBG_SYS32X           PPCDBG_BITVAL(4)
  37#define PPCDBG_SYS32M           PPCDBG_BITVAL(5)
  38#define PPCDBG_SYS64            PPCDBG_BITVAL(6)
  39#define PPCDBG_SYS64NI          PPCDBG_BITVAL(7)
  40#define PPCDBG_SYS64X           PPCDBG_BITVAL(8)
  41#define PPCDBG_SIGNAL           PPCDBG_BITVAL(9)
  42#define PPCDBG_SIGNAL64         PPCDBG_BITVAL(10)
  43#define PPCDBG_SIGNALXMON       PPCDBG_BITVAL(11)
  44#define PPCDBG_BINFMT32         PPCDBG_BITVAL(12)
  45#define PPCDBG_BINFMT64         PPCDBG_BITVAL(13)
  46#define PPCDBG_BINFMTXMON       PPCDBG_BITVAL(14)
  47#define PPCDBG_BINFMT_32ADDR    PPCDBG_BITVAL(15)
  48#define PPCDBG_ALIGNFIXUP       PPCDBG_BITVAL(16)
  49#define PPCDBG_TCEINIT          PPCDBG_BITVAL(17)
  50#define PPCDBG_TCE              PPCDBG_BITVAL(18)
  51#define PPCDBG_PHBINIT          PPCDBG_BITVAL(19)
  52#define PPCDBG_SMP              PPCDBG_BITVAL(20)
  53#define PPCDBG_BOOT             PPCDBG_BITVAL(21)
  54#define PPCDBG_BUSWALK          PPCDBG_BITVAL(22)
  55#define PPCDBG_PROM             PPCDBG_BITVAL(23)
  56#define PPCDBG_RTAS             PPCDBG_BITVAL(24)
  57#define PPCDBG_HTABSTRESS       PPCDBG_BITVAL(62)
  58#define PPCDBG_HTABSIZE         PPCDBG_BITVAL(63)
  59#define PPCDBG_NONE             (0UL)
  60#define PPCDBG_ALL              (0xffffffffUL)
  61
  62#define PPCDBG_NUM_FLAGS     64
  63
  64/* The default initial value for the debug switch */
  65#if 0
  66# define PPC_DEBUG_DEFAULT      PPCDBG_ALL
  67#else
  68# define PPC_DEBUG_DEFAULT      PPCDBG_NONE 
  69#endif
  70
  71#ifdef WANT_PPCDBG_TAB
  72/* A table of debug switch names to allow name lookup in xmon 
  73 * (and whoever else wants it.
  74 */
  75char *trace_names[PPCDBG_NUM_FLAGS] = {
  76        /* Known debug names */
  77        "mminit",       "mm",
  78        "syscall32",    "syscall32_ni", "syscall32x",   "syscall32m",
  79        "syscall64",    "syscall64_ni", "syscall64x",
  80        "signal",       "signal64",     "signal_xmon",
  81        "binfmt32",     "binfmt64",     "binfmt_xmon",  "binfmt_32addr",
  82        "alignfixup",   "tceinit",      "tce",          "phb_init",     
  83        "smp",          "boot",         "buswalk",      "prom",
  84        "rtas"
  85};
  86#else
  87extern char *trace_names[64];
  88#endif /* WANT_PPCDBG_TAB */
  89
  90#ifdef CONFIG_PPCDBG
  91/* Macro to conditionally print debug based on debug_switch */
  92#define PPCDBG(...) udbg_ppcdbg(__VA_ARGS__)
  93
  94/* Macro to conditionally call a debug routine based on debug_switch */
  95#define PPCDBGCALL(FLAGS,FUNCTION) ifppcdebug(FLAGS) FUNCTION
  96
  97/* Macros to test for debug states */
  98#define ifppcdebug(FLAGS) if (udbg_ifdebug(FLAGS))
  99#define ppcdebugset(FLAGS) (udbg_ifdebug(FLAGS))
 100#define PPCDBG_BINFMT ((current->thread.flags & PPC_FLAG_32BIT) ? PPCDBG_BINFMT32 : PPCDBG_BINFMT64)
 101
 102#ifdef CONFIG_XMON
 103#define PPCDBG_ENTER_DEBUGGER() xmon(0)
 104#define PPCDBG_ENTER_DEBUGGER_REGS(X) xmon(X)
 105#endif
 106
 107#else
 108#define PPCDBG(...) do {;} while (0)
 109#define PPCDBGCALL(FLAGS,FUNCTION) do {;} while (0)
 110#define ifppcdebug(...) if (0)
 111#define ppcdebugset(FLAGS) (0)
 112#endif /* CONFIG_PPCDBG */
 113
 114#ifndef PPCDBG_ENTER_DEBUGGER
 115#define PPCDBG_ENTER_DEBUGGER() do {;} while(0)
 116#endif
 117
 118#ifndef PPCDBG_ENTER_DEBUGGER_REGS
 119#define PPCDBG_ENTER_DEBUGGER_REGS(A) do {;} while(0)
 120#endif
 121
 122#endif /*__PPCDEBUG_H */
 123