pexpert/pexpert/ppc/protos.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 #ifndef _PEXPERT_PPC_PROTOS_H_
  31 #define _PEXPERT_PPC_PROTOS_H_
  32
  33 #define mtsprg(n, reg)  __asm__ volatile("mtsprg  " # n ", %0" : : "r" (reg))
  34 #define mfsprg(reg, n)  __asm__ volatile("mfsprg  %0, " # n : "=r" (reg))
  35
  36 #define mtspr(spr, val)  __asm__ volatile("mtspr  " # spr ", %0" : : "r" (val))
  37 #define mfspr(reg, spr)  __asm__ volatile("mfspr  %0, " # spr : "=r" (reg))
  38
  39 /*
  40  * Various memory/IO synchronisation instructions
  41  */
  42
  43         /*      Use eieio as a memory barrier to order stores.
  44          *      Useful for device control and PTE maintenance.
  45          */
  46
  47 #define eieio() \
  48         __asm__ volatile("eieio")
  49
  50         /*      Use sync to ensure previous stores have completed.
  51                 This is  required when manipulating locks and/or
  52                 maintaining PTEs or other shared structures on SMP
  53                 machines.
  54         */
  55
  56 #define sync() \
  57         __asm__ volatile("sync")
  58
  59         /*      Use isync to sychronize context; that is, the ensure
  60                 no prefetching of instructions happen before the
  61                 instruction.
  62         */
  63
  64 #define isync() \
  65         __asm__ volatile("isync")
  66
  67
  68 //------------------------------------------------------------------------
  69 // from ppc/endian.h
  70 static __inline__ unsigned int byte_reverse_word(unsigned int word);
  71 static __inline__ unsigned int byte_reverse_word(unsigned int word) {
  72         unsigned int result;
  73         __asm__ volatile("lwbrx %0, 0, %1" : "=r" (result) : "r" (&word));
  74         return result;
  75 }
  76
  77 //------------------------------------------------------------------------
  78 // from ppc/serial_io.h
  79 extern void initialize_serial(void * scc_phys_base, uint32_t serial_baud);
  80
  81
  82 //------------------------------------------------------------------------
  83 // from osfmk/ppc/POWERMAC/video_console.c
  84
  85 extern void initialize_screen(void *, unsigned int);
  86
  87 extern void vc_progress_initialize( void * desc,
  88                                     const unsigned char * data,
  89                                     const unsigned char * clut );
  90
  91 extern void vc_display_icon( void * desc,
  92                              const unsigned char * data );
  93
  94 //-------------------------------------------------------------------------
  95 // from osfmk/console/panic_dialog.c
  96 extern void panic_ui_initialize(const unsigned char * clut);
  97
  98 // from osfmk/ppc/serial_console.c
  99 extern int  switch_to_serial_console(void);
 100 extern void switch_to_old_console(int old_console);
 101
 102 typedef unsigned spl_t;
 103
 104 //------------------------------------------------------------------------
 105 // from bsd/dev/ppc/busses.h which clashes with mach/device/device_types.h
 106 typedef int             io_req_t;
 107
 108
 109 //typedef struct ipc_port         *ipc_port_t;
 110
 111 extern void            cninit(void);
 112
 113 /*
 114  *      Temporarily stolen from Firmware.h
 115  */
 116
 117 extern void dbgTrace(unsigned int item1, unsigned int item2, unsigned int item3);
 118 #if 1           /* (TEST/DEBUG) - eliminate inline */
 119 extern __inline__ void dbgTrace(unsigned int item1, unsigned int item2, unsigned int item3) {
 120
 121         __asm__ volatile("mr   r3,%0" : : "r" (item1) : "r3");
 122         __asm__ volatile("mr   r4,%0" : : "r" (item2) : "r4");
 123         __asm__ volatile("mr   r5,%0" : : "r" (item3) : "r5");
 124         __asm__ volatile("lis  r0,hi16(CutTrace)" : : : "r0");
 125         __asm__ volatile("ori  r0,r0,lo16(CutTrace)" : : : "r0");
 126         __asm__ volatile("sc");
 127         return;
 128 }
 129 #endif
 130
 131 extern void DoPreempt(void);
 132 extern __inline__ void DoPreempt(void) {
 133         __asm__ volatile("lis  r0,hi16(DoPreemptCall)" : : : "r0");
 134         __asm__ volatile("ori  r0,r0,lo16(DoPreemptCall)" : : : "r0");
 135         __asm__ volatile("sc");
 136         return;
 137 }
 138
 139 extern void CreateFakeIO(void);
 140 extern __inline__ void CreateFakeIO(void) {
 141         __asm__ volatile("lis  r0,hi16(CreateFakeIOCall)" : : : "r0");
 142         __asm__ volatile("ori  r0,r0,lo16(CreateFakeIOCall)" : : : "r0");
 143         __asm__ volatile("sc");
 144                 return;
 145 }
 146
 147 extern void StoreReal(unsigned int val, unsigned int addr);
 148 extern void ReadReal(unsigned int raddr, unsigned int *vaddr);
 149 extern unsigned int LLTraceSet(unsigned int tflags);
 150 extern void GratefulDebInit(void);
 151 extern void GratefulDebDisp(unsigned int coord, unsigned int data);
 152 extern void checkNMI(void);
 153
 154 #endif /* _PEXPERT_PPC_PROTOS_H_ */