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1.1 ! root 1: /* ! 2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. ! 3: * ! 4: * @APPLE_LICENSE_HEADER_START@ ! 5: * ! 6: * The contents of this file constitute Original Code as defined in and ! 7: * are subject to the Apple Public Source License Version 1.1 (the ! 8: * "License"). You may not use this file except in compliance with the ! 9: * License. Please obtain a copy of the License at ! 10: * http://www.apple.com/publicsource and read it before using this file. ! 11: * ! 12: * This Original Code and all software distributed under the License are ! 13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER ! 14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, ! 15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, ! 16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the ! 17: * License for the specific language governing rights and limitations ! 18: * under the License. ! 19: * ! 20: * @APPLE_LICENSE_HEADER_END@ ! 21: */ ! 22: /* ! 23: * This file contains firmware code. ! 24: * ! 25: */ ! 26: ! 27: #include <cpus.h> ! 28: #include <debug.h> ! 29: #include <mach_vm_debug.h> ! 30: #include <db_machine_commands.h> ! 31: ! 32: #include <kern/thread.h> ! 33: #include <mach/vm_attributes.h> ! 34: #include <mach/vm_param.h> ! 35: #include <kern/spl.h> ! 36: ! 37: #include <kern/misc_protos.h> ! 38: #include <ppc/misc_protos.h> ! 39: #include <ppc/proc_reg.h> ! 40: #include <ppc/mem.h> ! 41: #include <ppc/pmap.h> ! 42: #include <ppc/pmap_internals.h> ! 43: #include <ppc/new_screen.h> ! 44: #include <ppc/Firmware.h> ! 45: #include <ppc/mappings.h> ! 46: #include <pexpert/ppc/powermac.h> ! 47: #include <ddb/db_output.h> ! 48: ! 49: extern Boot_Video boot_video_info; ! 50: Boot_Video dgVideo; ! 51: extern GDWorkArea GratefulDebWork[]; ! 52: ! 53: typedef struct RuptCtr { /* Counts hardware interrupts */ ! 54: struct GDpos { /* Screen position for Grateful Deb display */ ! 55: unsigned short col; /* Column (-1 means no display) */ ! 56: unsigned short row; /* Row */ ! 57: } GDpos; ! 58: unsigned int count; /* Count of interrupt */ ! 59: unsigned int timed; /* If set, count updates at timed rate */ ! 60: unsigned int lasttime; /* Low of timebase when last updated */ ! 61: } RuptCtr; ! 62: ! 63: /* Window layout for Grateful Deb: ! 64: * ! 65: * 0 9 ! 66: * ! 67: * 0 Total Decrimenter ! 68: * 1 DSI ISI ! 69: * 2 System call External ! 70: * 3 SIGP Floating point ! 71: * 4 Program Alignment ! 72: */ ! 73: ! 74: ! 75: ! 76: ! 77: ! 78: RuptCtr RuptCtrs[96] = { ! 79: { { 0, 0}, 0, 1 }, /* Total interruptions */ ! 80: { {-1, -1}, 0, 0 }, /* Reset */ ! 81: { {-1, -1}, 0, 0 }, /* Machine check */ ! 82: { { 0, 1}, 0, 1 }, /* DSIs */ ! 83: { { 1, 1}, 0, 1 }, /* ISIs */ ! 84: { { 1, 2}, 0, 1 }, /* Externals */ ! 85: { { 1, 4}, 0, 0 }, /* Alignment */ ! 86: { { 0, 4}, 0, 0 }, /* Program */ ! 87: { { 1, 3}, 0, 0 }, /* Floating point */ ! 88: { { 1, 0}, 0, 1 }, /* Decrementer */ ! 89: { {-1, -1}, 0, 0 }, /* I/O error */ ! 90: { {-1, -1}, 0, 0 }, /* Reserved */ ! 91: { { 0, 2}, 0, 1 }, /* System call */ ! 92: { {-1, -1}, 0, 0 }, /* Trace */ ! 93: { {-1, -1}, 0, 0 }, /* Floating point assist */ ! 94: { {-1, -1}, 0, 0 }, /* Performance monitor */ ! 95: { {-1, -1}, 0, 0 }, /* VMX */ ! 96: { {-1, -1}, 0, 0 }, /* Reserved */ ! 97: { {-1, -1}, 0, 0 }, /* Reserved */ ! 98: { {-1, -1}, 0, 0 }, /* Reserved */ ! 99: { {-1, -1}, 0, 0 }, /* Instruction breakpoint */ ! 100: { {-1, -1}, 0, 0 }, /* System management */ ! 101: { {-1, -1}, 0, 0 }, /* Reserved */ ! 102: { {-1, -1}, 0, 0 }, /* Reserved */ ! 103: { {-1, -1}, 0, 0 }, /* Reserved */ ! 104: { {-1, -1}, 0, 0 }, /* Reserved */ ! 105: { {-1, -1}, 0, 0 }, /* Reserved */ ! 106: { {-1, -1}, 0, 0 }, /* Reserved */ ! 107: { {-1, -1}, 0, 0 }, /* Reserved */ ! 108: { {-1, -1}, 0, 0 }, /* Reserved */ ! 109: { {-1, -1}, 0, 0 }, /* Reserved */ ! 110: { {-1, -1}, 0, 0 }, /* Reserved */ ! 111: { {-1, -1}, 0, 0 }, /* Reserved */ ! 112: { {-1, -1}, 0, 0 }, /* Trace */ ! 113: { { 0, 3}, 0, 0 }, /* SIGP */ ! 114: { {-1, -1}, 0, 0 }, /* Preemption */ ! 115: { {-1, -1}, 0, 0 }, /* Context switch */ ! 116: { {-1, -1}, 0, 0 }, /* Reserved */ ! 117: { {-1, -1}, 0, 0 }, /* Reserved */ ! 118: { {-1, -1}, 0, 0 }, /* Reserved */ ! 119: { {-1, -1}, 0, 0 }, /* Reserved */ ! 120: { {-1, -1}, 0, 0 }, /* Reserved */ ! 121: { {-1, -1}, 0, 0 }, /* Reserved */ ! 122: { {-1, -1}, 0, 0 }, /* Reserved */ ! 123: { {-1, -1}, 0, 0 }, /* Reserved */ ! 124: { {-1, -1}, 0, 0 }, /* Reserved */ ! 125: { {-1, -1}, 0, 0 }, /* Reserved */ ! 126: { {-1, -1}, 0, 0 }, /* Special, update frequency controls */ ! 127: ! 128: /* Start of second processor counts */ ! 129: ! 130: { { 0, 0}, 0, 1 }, /* Total interruptions */ ! 131: { {-1, -1}, 0, 0 }, /* Reset */ ! 132: { {-1, -1}, 0, 0 }, /* Machine check */ ! 133: { { 0, 1}, 0, 1 }, /* DSIs */ ! 134: { { 1, 1}, 0, 1 }, /* ISIs */ ! 135: { { 1, 2}, 0, 1 }, /* Externals */ ! 136: { { 1, 4}, 0, 0 }, /* Alignment */ ! 137: { { 0, 4}, 0, 0 }, /* Program */ ! 138: { { 1, 3}, 0, 0 }, /* Floating point */ ! 139: { { 1, 0}, 0, 1 }, /* Decrementer */ ! 140: { {-1, -1}, 0, 0 }, /* I/O error */ ! 141: { {-1, -1}, 0, 0 }, /* Reserved */ ! 142: { { 0, 2}, 0, 1 }, /* System call */ ! 143: { {-1, -1}, 0, 0 }, /* Trace */ ! 144: { {-1, -1}, 0, 0 }, /* Floating point assist */ ! 145: { {-1, -1}, 0, 0 }, /* Performance monitor */ ! 146: { {-1, -1}, 0, 0 }, /* VMX */ ! 147: { {-1, -1}, 0, 0 }, /* Reserved */ ! 148: { {-1, -1}, 0, 0 }, /* Reserved */ ! 149: { {-1, -1}, 0, 0 }, /* Reserved */ ! 150: { {-1, -1}, 0, 0 }, /* Instruction breakpoint */ ! 151: { {-1, -1}, 0, 0 }, /* System management */ ! 152: { {-1, -1}, 0, 0 }, /* Reserved */ ! 153: { {-1, -1}, 0, 0 }, /* Reserved */ ! 154: { {-1, -1}, 0, 0 }, /* Reserved */ ! 155: { {-1, -1}, 0, 0 }, /* Reserved */ ! 156: { {-1, -1}, 0, 0 }, /* Reserved */ ! 157: { {-1, -1}, 0, 0 }, /* Reserved */ ! 158: { {-1, -1}, 0, 0 }, /* Reserved */ ! 159: { {-1, -1}, 0, 0 }, /* Reserved */ ! 160: { {-1, -1}, 0, 0 }, /* Reserved */ ! 161: { {-1, -1}, 0, 0 }, /* Reserved */ ! 162: { {-1, -1}, 0, 0 }, /* Reserved */ ! 163: { {-1, -1}, 0, 0 }, /* Trace */ ! 164: { { 0, 3}, 0, 0 }, /* SIGP */ ! 165: { {-1, -1}, 0, 0 }, /* Preemption */ ! 166: { {-1, -1}, 0, 0 }, /* Context switch */ ! 167: { {-1, -1}, 0, 0 }, /* Reserved */ ! 168: { {-1, -1}, 0, 0 }, /* Reserved */ ! 169: { {-1, -1}, 0, 0 }, /* Reserved */ ! 170: { {-1, -1}, 0, 0 }, /* Reserved */ ! 171: { {-1, -1}, 0, 0 }, /* Reserved */ ! 172: { {-1, -1}, 0, 0 }, /* Reserved */ ! 173: { {-1, -1}, 0, 0 }, /* Reserved */ ! 174: { {-1, -1}, 0, 0 }, /* Reserved */ ! 175: { {-1, -1}, 0, 0 }, /* Reserved */ ! 176: { {-1, -1}, 0, 0 }, /* Reserved */ ! 177: { {-1, -1}, 0, 0 } /* Special, update frequency controls */ ! 178: }; ! 179: ! 180: void GratefulDebInit(bootBumbleC *boot_video_info) { /* Initialize the video debugger */ ! 181: ! 182: unsigned int fillframe[256]; ! 183: unsigned int startpos, startbyte, windowleft, newwidth, i, j, startword, oldwidth, nrmlgn; ! 184: unsigned int nwords, *byteleft, lstlgn, pixlgn, bytelgn; ! 185: ! 186: if(!boot_video_info) { /* Are we disabling it? ! 187: GratefulDebWork[0].GDready = 0; /* Disable output */ ! 188: return; ! 189: } ! 190: ! 191: nrmlgn = (9 * GDfontsize) * (boot_video_info->v_depth / 8); /* Get the normal column size in bytes */ ! 192: lstlgn = (((8 * GDfontsize) + (GDfontsize >> 1)) * boot_video_info->v_depth) / 8; /* Same as normal, but with 1/2 character space */ ! 193: nrmlgn = (nrmlgn + 31) & -32; /* Round to a line */ ! 194: ! 195: bytelgn = (nrmlgn * (GDdispcols - 1)) + lstlgn; /* Length in bytes */ ! 196: pixlgn = bytelgn / (boot_video_info->v_depth / 8); /* Number of pixels wide */ ! 197: ! 198: startbyte = (boot_video_info->v_width * (boot_video_info->v_depth / 8)) - bytelgn; /* Get the starting byte unaligned */ ! 199: startpos = boot_video_info->v_width - pixlgn; /* Starting pixel position */ ! 200: ! 201: startbyte += (unsigned int)boot_video_info->v_baseAddr & 31; /* Add the extra to cache boundary in frame buffer */ ! 202: startbyte &= -32; /* Make sure it's on a cache line for speed */ ! 203: startbyte += (unsigned int)boot_video_info->v_baseAddr & 31; /* Subtract the extra to cache boundary in frame buffer */ ! 204: ! 205: windowleft = startbyte - (((GDfontsize / 2) * boot_video_info->v_depth) / 8); /* Back up a half character */ ! 206: windowleft &= -4; /* Make sure it is on a word boundary */ ! 207: newwidth = windowleft / (boot_video_info->v_depth / 8); /* Get the new pixel width of screen */ ! 208: ! 209: oldwidth = boot_video_info->v_width; /* Save the old width */ ! 210: // boot_video_info->v_width = newwidth; /* Set the new width */ ! 211: ! 212: nwords = oldwidth - newwidth; /* See how much to fill in pixels */ ! 213: nwords = nwords / (32 / boot_video_info->v_depth); /* Get that in bytes */ ! 214: ! 215: startword = (newwidth + 3) / 4; /* Where does it start? */ ! 216: ! 217: ! 218: byteleft = (unsigned int *)(boot_video_info->v_baseAddr + windowleft); /* Starting place */ ! 219: for (i=0; i < nwords; i++) byteleft[i] = 0; /* Set the row to all black */ ! 220: ! 221: byteleft = (unsigned int *)(boot_video_info->v_baseAddr + windowleft + (boot_video_info->v_rowBytes * 1)); /* Starting place */ ! 222: for (i=0; i < nwords; i++) byteleft[i] = 0; /* Set the row to all black */ ! 223: ! 224: byteleft = (unsigned int *)(boot_video_info->v_baseAddr + windowleft + ! 225: (boot_video_info->v_rowBytes * (boot_video_info->v_height - 2))); /* Starting place */ ! 226: for (i=0; i < nwords; i++) byteleft[i] = 0; /* Set the row to all black */ ! 227: ! 228: byteleft = (unsigned int *)(boot_video_info->v_baseAddr + windowleft + ! 229: (boot_video_info->v_rowBytes * (boot_video_info->v_height - 1))); /* Starting place */ ! 230: for (i=0; i < nwords; i++) byteleft[i] = 0; /* Set the row to all black */ ! 231: ! 232: for (i=0; i < nwords; i++) fillframe[i] = 0xFFFFFFFF; /* Set the row to all white */ ! 233: ! 234: if(boot_video_info->v_depth == 8) { /* See if 8 bits a pixel */ ! 235: fillframe[0] = 0x0000FFFF; /* Make left border */ ! 236: fillframe[nwords - 1] = 0xFFFF0000; /* Make right border */ ! 237: } ! 238: else if(boot_video_info->v_depth == 16) { /* See if 16 bits a pixel */ ! 239: fillframe[0] = 0x00000000; /* Make left border */ ! 240: fillframe[nwords - 1] = 0x00000000; /* Make right border */ ! 241: } ! 242: else { ! 243: fillframe[0] = 0x00000000; /* Make left border */ ! 244: fillframe[1] = 0x00000000; /* Make left border */ ! 245: fillframe[nwords - 1] = 0x00000000; /* Make right border */ ! 246: fillframe[nwords - 2] = 0x00000000; /* Make right border */ ! 247: } ! 248: ! 249: byteleft = (unsigned int *)(boot_video_info->v_baseAddr + windowleft + (boot_video_info->v_rowBytes * 2)); /* Place to start filling */ ! 250: ! 251: for(i=2; i < (boot_video_info->v_height - 2); i++) { /* Fill the rest */ ! 252: for(j=0; j<nwords; j++) byteleft[j] = fillframe[j]; /* Fill the row */ ! 253: byteleft = (unsigned int *)((unsigned int)byteleft + boot_video_info->v_rowBytes); /* Next row */ ! 254: } ! 255: ! 256: for(i=0; i<2; i++) { /* Initialize both (for now) processor areas */ ! 257: ! 258: GratefulDebWork[i].GDtop = 2 + (GDfontsize / 2) + (i * 18 * GDfontsize); ! 259: GratefulDebWork[i].GDleft = 2 + startpos + (GDfontsize / 2); ! 260: GratefulDebWork[i].GDtopleft = boot_video_info->v_baseAddr + startbyte + ! 261: (GratefulDebWork[i].GDtop * boot_video_info->v_rowBytes); ! 262: GratefulDebWork[i].GDrowbytes = boot_video_info->v_rowBytes; ! 263: GratefulDebWork[i].GDrowchar = boot_video_info->v_rowBytes * (GDfontsize + (GDfontsize / 4)); ! 264: GratefulDebWork[i].GDdepth = boot_video_info->v_depth; ! 265: GratefulDebWork[i].GDcollgn = nrmlgn; ! 266: ! 267: // RuptCtrs[(48*i)+47].timed = powermac_info.bus_clock_rate_hz >> 6; /* (Update every 16th of a second (16 fps) */ ! 268: RuptCtrs[(48*i)+47].timed = powermac_info.bus_clock_rate_hz >> 5; /* (Update every 8th of a second (8 fps) */ ! 269: // RuptCtrs[(48*i)+47].timed = powermac_info.bus_clock_rate_hz >> 4; /* (Update every 4th of a second (4 fps) */ ! 270: // RuptCtrs[(48*i)+47].timed = powermac_info.bus_clock_rate_hz >> 3; /* (Update every 2th of a second (2 fps) */ ! 271: // RuptCtrs[(48*i)+47].timed = powermac_info.bus_clock_rate_hz >> 2; /* (Update every 1 second (1 fps) */ ! 272: ! 273: sync(); ! 274: ! 275: GratefulDebWork[i].GDready = 1; /* This one's all ready */ ! 276: } ! 277: ! 278: } ! 279: ! 280:
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