include/asm-ppc64/ppcdebug.h at v2.6.14

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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel / include / asm-ppc64 / ppcdebug.h
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  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
 68extern 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 */
 74char *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
 86extern 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 */
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