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 <linux/types.h>
  20 #include <asm/udbg.h>
  21 #include <stdarg.h>
  22
  23 #define PPCDBG_BITVAL(X)     ((1UL)<<((unsigned long)(X)))
  24
  25 /* Defined below are the bit positions of various debug flags in the
  26  * ppc64_debug_switch variable.
  27  * -- When adding new values, please enter them into trace names below --
  28  *
  29  * Values 62 & 63 can be used to stress the hardware page table management
  30  * code.  They must be set statically, any attempt to change them dynamically
  31  * would be a very bad idea.
  32  */
  33 #define PPCDBG_MMINIT        PPCDBG_BITVAL(0)
  34 #define PPCDBG_MM            PPCDBG_BITVAL(1)
  35 #define PPCDBG_SYS32         PPCDBG_BITVAL(2)
  36 #define PPCDBG_SYS32NI       PPCDBG_BITVAL(3)
  37 #define PPCDBG_SYS32X        PPCDBG_BITVAL(4)
  38 #define PPCDBG_SYS32M        PPCDBG_BITVAL(5)
  39 #define PPCDBG_SYS64         PPCDBG_BITVAL(6)
  40 #define PPCDBG_SYS64NI       PPCDBG_BITVAL(7)
  41 #define PPCDBG_SYS64X        PPCDBG_BITVAL(8)
  42 #define PPCDBG_SIGNAL        PPCDBG_BITVAL(9)
  43 #define PPCDBG_SIGNALXMON    PPCDBG_BITVAL(10)
  44 #define PPCDBG_BINFMT32      PPCDBG_BITVAL(11)
  45 #define PPCDBG_BINFMT64      PPCDBG_BITVAL(12)
  46 #define PPCDBG_BINFMTXMON    PPCDBG_BITVAL(13)
  47 #define PPCDBG_BINFMT_32ADDR PPCDBG_BITVAL(14)
  48 #define PPCDBG_ALIGNFIXUP    PPCDBG_BITVAL(15)
  49 #define PPCDBG_TCEINIT       PPCDBG_BITVAL(16)
  50 #define PPCDBG_TCE           PPCDBG_BITVAL(17)
  51 #define PPCDBG_PHBINIT       PPCDBG_BITVAL(18)
  52 #define PPCDBG_SMP           PPCDBG_BITVAL(19)
  53 #define PPCDBG_BOOT          PPCDBG_BITVAL(20)
  54 #define PPCDBG_BUSWALK       PPCDBG_BITVAL(21)
  55 #define PPCDBG_PROM          PPCDBG_BITVAL(22)
  56 #define PPCDBG_RTAS          PPCDBG_BITVAL(23)
  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 /* The default initial value for the debug switch */
  63 #define PPC_DEBUG_DEFAULT    0
  64 /* #define PPC_DEBUG_DEFAULT    PPCDBG_ALL        */
  65
  66 #define PPCDBG_NUM_FLAGS     64
  67
  68 extern u64 ppc64_debug_switch;
  69
  70 #ifdef WANT_PPCDBG_TAB
  71 /* A table of debug switch names to allow name lookup in xmon
  72  * (and whoever else wants it.
  73  */
  74 char *trace_names[PPCDBG_NUM_FLAGS] = {
  75         /* Known debug names */
  76         "mminit",       "mm",
  77         "syscall32",    "syscall32_ni", "syscall32x",   "syscall32m",
  78         "syscall64",    "syscall64_ni", "syscall64x",
  79         "signal",       "signal_xmon",
  80         "binfmt32",     "binfmt64",     "binfmt_xmon",  "binfmt_32addr",
  81         "alignfixup",   "tceinit",      "tce",          "phb_init",
  82         "smp",          "boot",         "buswalk",      "prom",
  83         "rtas"
  84 };
  85 #else
  86 extern char *trace_names[64];
  87 #endif /* WANT_PPCDBG_TAB */
  88
  89 #ifdef CONFIG_PPCDBG
  90 /* Macro to conditionally print debug based on debug_switch */
  91 #define PPCDBG(...) udbg_ppcdbg(__VA_ARGS__)
  92
  93 /* Macro to conditionally call a debug routine based on debug_switch */
  94 #define PPCDBGCALL(FLAGS,FUNCTION) ifppcdebug(FLAGS) FUNCTION
  95
  96 /* Macros to test for debug states */
  97 #define ifppcdebug(FLAGS) if (udbg_ifdebug(FLAGS))
  98 #define ppcdebugset(FLAGS) (udbg_ifdebug(FLAGS))
  99 #define PPCDBG_BINFMT (test_thread_flag(TIF_32BIT) ? PPCDBG_BINFMT32 : PPCDBG_BINFMT64)
 100
 101 #else
 102 #define PPCDBG(...) do {;} while (0)
 103 #define PPCDBGCALL(FLAGS,FUNCTION) do {;} while (0)
 104 #define ifppcdebug(...) if (0)
 105 #define ppcdebugset(FLAGS) (0)
 106 #endif /* CONFIG_PPCDBG */
 107
 108 #endif /*__PPCDEBUG_H */