tlb.lst

au1200下的boot代码

 117:/mnt/hgfs/boot/booter/source/tlb.c **** 	/* round size up to (PAGE_SIZE * 2) */
 118:/mnt/hgfs/boot/booter/source/tlb.c **** 	size = (size + ((PAGE_SIZE*2) - 1)) & ~((PAGE_SIZE*2) - 1);
GAS LISTING /tmp/ccLt6UhX.s 			page 7


 215              		.loc 1 118 0
 216 0158 FF1F8424 		addiu	$4,$4,8191
 217 015c 00E00224 		li	$2,-8192			# 0xffffffffffffe000
 218 0160 24208200 		and	$4,$4,$2
 119:/mnt/hgfs/boot/booter/source/tlb.c **** 	if (size == 0)
 120:/mnt/hgfs/boot/booter/source/tlb.c **** 	{
 121:/mnt/hgfs/boot/booter/source/tlb.c **** 		va = NULL;
 122:/mnt/hgfs/boot/booter/source/tlb.c **** 	}
 123:/mnt/hgfs/boot/booter/source/tlb.c **** 	else
 124:/mnt/hgfs/boot/booter/source/tlb.c **** 	{
 125:/mnt/hgfs/boot/booter/source/tlb.c **** 		va = (void *)lastVA;
 219              		.loc 1 125 0
 220 0164 0000053C 		lui	$5,%hi(lastVA)
 221              		.loc 1 121 0
 222              		.loc 1 119 0
 223 0168 04008010 		beq	$4,$0,$L23
 224 016c 21180000 		move	$3,$0
 225              	
 226              		.loc 1 125 0
 227 0170 0000A38C 		lw	$3,%lo(lastVA)($5)
 126:/mnt/hgfs/boot/booter/source/tlb.c **** 		lastVA += size;
 228              		.loc 1 126 0
 229 0174 21106400 		addu	$2,$3,$4
 230 0178 0000A2AC 		sw	$2,%lo(lastVA)($5)
 231              	$L23:
 127:/mnt/hgfs/boot/booter/source/tlb.c **** 	}
 128:/mnt/hgfs/boot/booter/source/tlb.c **** 	return va;
 129:/mnt/hgfs/boot/booter/source/tlb.c **** }
 232              		.loc 1 129 0
 233 017c 0800E003 		j	$31
 234 0180 21106000 		move	$2,$3
 235              	
 236              		.set	macro
 237              		.set	reorder
 238              	$LFE4:
 239              		.end	valloc
 240              		.align	2
 241              		.globl	mapPhysicalAddress
 242              		.ent	mapPhysicalAddress
 243              		.type	mapPhysicalAddress, @function
 244              	mapPhysicalAddress:
 245              	$LFB5:
 130:/mnt/hgfs/boot/booter/source/tlb.c **** 
 131:/mnt/hgfs/boot/booter/source/tlb.c **** /********************************************************************/
 132:/mnt/hgfs/boot/booter/source/tlb.c **** void *
 133:/mnt/hgfs/boot/booter/source/tlb.c **** mapPhysicalAddress (phys_t physAddr, unsigned long size, int flags)
 134:/mnt/hgfs/boot/booter/source/tlb.c **** {
 246              		.loc 1 134 0
 247              		.frame	$sp,40,$31		# vars= 0, regs= 6/0, args= 16, gp= 0
 248              		.mask	0x801f0000,-4
 249              		.fmask	0x00000000,0
 250              		.set	noreorder
 251              		.set	nomacro
 252              		
 253 0184 D8FFBD27 		addiu	$sp,$sp,-40
 254              	$LCFI6:
 255 0188 1C00B3AF 		sw	$19,28($sp)
GAS LISTING /tmp/ccLt6UhX.s 			page 8


 256              	$LCFI7:
 257 018c 1800B2AF 		sw	$18,24($sp)
 258              	$LCFI8:
 259 0190 1400B1AF 		sw	$17,20($sp)
 260              	$LCFI9:
 261 0194 1000B0AF 		sw	$16,16($sp)
 262              	$LCFI10:
 263 0198 2400BFAF 		sw	$31,36($sp)
 264              	$LCFI11:
 265 019c 2000B4AF 		sw	$20,32($sp)
 266              	$LCFI12:
 267              		.loc 1 134 0
 268 01a0 21808000 		move	$16,$4
 269 01a4 2188A000 		move	$17,$5
 270 01a8 2190C000 		move	$18,$6
 135:/mnt/hgfs/boot/booter/source/tlb.c **** 	void *va = NULL;
 136:/mnt/hgfs/boot/booter/source/tlb.c **** 	int pteIndex;
 137:/mnt/hgfs/boot/booter/source/tlb.c **** 	uint32 lo0, lo1, offset, cca;
 138:/mnt/hgfs/boot/booter/source/tlb.c **** 	int i;
 139:/mnt/hgfs/boot/booter/source/tlb.c **** 
 140:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("phys is %08X %08X\n", ((uint32 *)&physAddr)[0], ((uint32 *)&physAddr)[1]);
 141:/mnt/hgfs/boot/booter/source/tlb.c **** 
 142:/mnt/hgfs/boot/booter/source/tlb.c **** 	/* First 512M physical is KSEG0/KSEG1 */
 143:/mnt/hgfs/boot/booter/source/tlb.c **** 	if ((physAddr >= 0x00000000) && (physAddr < 0x20000000))
 271              		.loc 1 143 0
 272 01ac 1400A014 		bgtu	$5,$0,$L25
 273 01b0 2198E000 		move	$19,$7
 274              	
 275 01b4 0500A014 		bne	$5,$0,$L26
 276 01b8 FF1F023C 		li	$2,536805376			# 0x1fff0000
 277              	
 278 01bc FFFF4234 		ori	$2,$2,0xffff
 279 01c0 2B104400 		sltu	$2,$2,$4
 144:/mnt/hgfs/boot/booter/source/tlb.c **** 	{
 145:/mnt/hgfs/boot/booter/source/tlb.c **** 		if (flags)
 146:/mnt/hgfs/boot/booter/source/tlb.c **** 			va = (void *)KSEG0((void *)((uint32)physAddr));
 147:/mnt/hgfs/boot/booter/source/tlb.c **** 		else
 148:/mnt/hgfs/boot/booter/source/tlb.c **** 			va = (void *)KSEG1((void *)((uint32)physAddr));
 149:/mnt/hgfs/boot/booter/source/tlb.c **** 
 150:/mnt/hgfs/boot/booter/source/tlb.c **** 		return va;
 151:/mnt/hgfs/boot/booter/source/tlb.c **** 	}
 152:/mnt/hgfs/boot/booter/source/tlb.c **** 	else
 153:/mnt/hgfs/boot/booter/source/tlb.c **** 	{
 154:/mnt/hgfs/boot/booter/source/tlb.c **** 		/* virtual mapping */
 155:/mnt/hgfs/boot/booter/source/tlb.c **** 
 156:/mnt/hgfs/boot/booter/source/tlb.c **** 		/* round size up to (PAGE_SIZE * 2) */
 157:/mnt/hgfs/boot/booter/source/tlb.c **** 		size = (size + ((PAGE_SIZE*2) - 1)) & ~((PAGE_SIZE*2) - 1);
 280              		.loc 1 157 0
 281              		.loc 1 143 0
 282 01c4 0F004014 		bne	$2,$0,$L42
 283 01c8 FF1F4226 		addiu	$2,$18,8191
 284              	
 285              	$L26:
 286              		.loc 1 146 0
 287              		.loc 1 145 0
 288 01cc 02006016 		bne	$19,$0,$L41
 289 01d0 0080023C 		li	$2,-2147483648			# 0xffffffff80000000
GAS LISTING /tmp/ccLt6UhX.s 			page 9


 290              	
 291              		.loc 1 148 0
 292 01d4 00A0023C 		li	$2,-1610612736			# 0xffffffffa0000000
 293              	$L41:
 294 01d8 21580202 		addu	$11,$16,$2
 295              		.loc 1 150 0
 296 01dc 21106001 		move	$2,$11
 297              	$L24:
 158:/mnt/hgfs/boot/booter/source/tlb.c **** 		if (size == 0)
 159:/mnt/hgfs/boot/booter/source/tlb.c **** 			return NULL;
 160:/mnt/hgfs/boot/booter/source/tlb.c **** 
 161:/mnt/hgfs/boot/booter/source/tlb.c **** 
 162:/mnt/hgfs/boot/booter/source/tlb.c **** 		offset = physAddr & ((PAGE_SIZE*2) - 1);
 163:/mnt/hgfs/boot/booter/source/tlb.c **** 		physAddr = (physAddr & (phys_t)~((PAGE_SIZE*2) - 1));
 164:/mnt/hgfs/boot/booter/source/tlb.c **** 
 165:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("size is %dK\n", size >> 10);
 166:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("phys is %08X %08X\n", ((uint32 *)&physAddr)[0], ((uint32 *)&physAddr)[1]);
 167:/mnt/hgfs/boot/booter/source/tlb.c **** 
 168:/mnt/hgfs/boot/booter/source/tlb.c **** 
 169:/mnt/hgfs/boot/booter/source/tlb.c **** 		va = valloc(size, 0);
 170:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("VA is %08X\n", va);
 171:/mnt/hgfs/boot/booter/source/tlb.c **** 
 172:/mnt/hgfs/boot/booter/source/tlb.c **** 		/* NOTE: There is no check for overflow of the single L2PTE */
 173:/mnt/hgfs/boot/booter/source/tlb.c **** 		/* now create PTE entries */
 174:/mnt/hgfs/boot/booter/source/tlb.c **** 		pteIndex = (int)va;
 175:/mnt/hgfs/boot/booter/source/tlb.c **** 		pteIndex <<= 8;
 176:/mnt/hgfs/boot/booter/source/tlb.c **** 		pteIndex >>= (8 + 13);
 177:/mnt/hgfs/boot/booter/source/tlb.c **** 		for (i = 0; i < size; i += (PAGE_SIZE + PAGE_SIZE))
 178:/mnt/hgfs/boot/booter/source/tlb.c **** 		{
 179:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("adr32 %08X\n", (uint32)(physAddr + i));
 180:/mnt/hgfs/boot/booter/source/tlb.c **** 			/* 36-bit PA */
 181:/mnt/hgfs/boot/booter/source/tlb.c **** 			lo0 = (uint32)((physAddr + (phys_t)i + (phys_t)0        ) >> 6);
 182:/mnt/hgfs/boot/booter/source/tlb.c **** 			lo1 = (uint32)((physAddr + (phys_t)i + (phys_t)PAGE_SIZE) >> 6);
 183:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("lo0 %08X\n", lo0);
 184:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("lo1 %08X\n", lo0);
 185:/mnt/hgfs/boot/booter/source/tlb.c **** 			if (flags == FALSE)
 186:/mnt/hgfs/boot/booter/source/tlb.c **** 				cca = 2;
 187:/mnt/hgfs/boot/booter/source/tlb.c **** 			else if (flags == TRUE)
 188:/mnt/hgfs/boot/booter/source/tlb.c **** 				cca = 3;
 189:/mnt/hgfs/boot/booter/source/tlb.c **** 			else
 190:/mnt/hgfs/boot/booter/source/tlb.c **** 				cca = flags;
 191:/mnt/hgfs/boot/booter/source/tlb.c **** 			//if (flags)
 192:/mnt/hgfs/boot/booter/source/tlb.c **** 			{
 193:/mnt/hgfs/boot/booter/source/tlb.c **** 				lo0 |= ((flags<<3) + (1<<2) + (1<<1) + (0<<0));
 194:/mnt/hgfs/boot/booter/source/tlb.c **** 				lo1 |= ((flags<<3) + (1<<2) + (1<<1) + (0<<0));
 195:/mnt/hgfs/boot/booter/source/tlb.c **** 			}
 196:/mnt/hgfs/boot/booter/source/tlb.c **** 			//else
 197:/mnt/hgfs/boot/booter/source/tlb.c **** 			//{
 198:/mnt/hgfs/boot/booter/source/tlb.c **** 			//	lo0 |= ((2<<3) + (1<<2) + (1<<1) + (0<<0));
 199:/mnt/hgfs/boot/booter/source/tlb.c **** 			//	lo1 |= ((2<<3) + (1<<2) + (1<<1) + (0<<0));
 200:/mnt/hgfs/boot/booter/source/tlb.c **** 			//}
 201:/mnt/hgfs/boot/booter/source/tlb.c **** 			L2PTE[pteIndex].EntryLo0 = lo0;
 202:/mnt/hgfs/boot/booter/source/tlb.c **** 			L2PTE[pteIndex].EntryLo1 = lo1;
 203:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("pteIndex %d .lo0 %08X\n", pteIndex, lo0);
 204:/mnt/hgfs/boot/booter/source/tlb.c **** //printf("pteIndex %d .lo1 %08X\n", pteIndex, lo1);
 205:/mnt/hgfs/boot/booter/source/tlb.c **** 			++pteIndex;
 206:/mnt/hgfs/boot/booter/source/tlb.c **** 		}
GAS LISTING /tmp/ccLt6UhX.s 			page 10


 207:/mnt/hgfs/boot/booter/source/tlb.c **** 
 208:/mnt/hgfs/boot/booter/source/tlb.c **** 		return va + offset;
 209:/mnt/hgfs/boot/booter/source/tlb.c **** 	}
 210:/mnt/hgfs/boot/booter/source/tlb.c **** }
 298              		.loc 1 210 0
 299 01e0 2400BF8F 		lw	$31,36($sp)
 300 01e4 2000B48F 		lw	$20,32($sp)
 301 01e8 1C00B38F 		lw	$19,28($sp)
 302 01ec 1800B28F 		lw	$18,24($sp)
 303 01f0 1400B18F 		lw	$17,20($sp)
 304 01f4 1000B08F 		lw	$16,16($sp)
 305 01f8 0800E003 		j	$31
 306 01fc 2800BD27 		addiu	$sp,$sp,40
 307              	
 308              	$L25:
 309              		.loc 1 157 0
 310 0200 FF1F4226 		addiu	$2,$18,8191
 311              	$L42:
 312 0204 00E00424 		li	$4,-8192			# 0xffffffffffffe000
 313 0208 24904400 		and	$18,$2,$4
 314              		.loc 1 159 0
 315              		.loc 1 158 0
 316 020c F4FF4012 		beq	$18,$0,$L24
 317 0210 21100000 		move	$2,$0
 318              	
 319              		.loc 1 163 0
 320 0214 24109000 		and	$2,$4,$16
 321              		.loc 1 169 0
 322 0218 21280000 		move	$5,$0
 323 021c 21204002 		move	$4,$18
 324              		.loc 1 162 0
 325 0220 FF1F1432 		andi	$20,$16,0x1fff
 326              		.loc 1 163 0
 327              		.loc 1 169 0
 328 0224 0000000C 		jal	valloc
 329 0228 21804000 		move	$16,$2
 330              	
 331              		.loc 1 175 0
 332 022c 001A0200 		sll	$3,$2,8
 333              		.loc 1 169 0
 334 0230 21584000 		move	$11,$2
 335              		.loc 1 176 0
 336 0234 431D0300 		sra	$3,$3,21
 337              		.loc 1 177 0
 338 0238 23004012 		beq	$18,$0,$L40
 339 023c 21480000 		move	$9,$0
 340              	
 341 0240 0000023C 		lui	$2,%hi(L2PTE)
 342 0244 C0201300 		sll	$4,$19,3
 343 0248 C0180300 		sll	$3,$3,3
 344 024c 00004224 		addiu	$2,$2,%lo(L2PTE)
 345 0250 21406200 		addu	$8,$3,$2
 346 0254 06008A24 		addiu	$10,$4,6
 347              	$L38:
 348              		.loc 1 181 0
 349 0258 C3370900 		sra	$6,$9,31
 350              		.loc 1 182 0
GAS LISTING /tmp/ccLt6UhX.s 			page 11


 351 025c 21103001 		addu	$2,$9,$16
 352 0260 2118C000 		move	$3,$6
 353              		.loc 1 181 0
 354 0264 21203001 		addu	$4,$9,$16
 355 0268 2128C000 		move	$5,$6
 356              		.loc 1 182 0
 357 026c 21187100 		addu	$3,$3,$17
 358 0270 2B305000 		sltu	$6,$2,$16
 359 0274 00104224 		addiu	$2,$2,4096
 360              		.loc 1 181 0
 361 0278 2B389000 		sltu	$7,$4,$16
 362              		.loc 1 182 0
 363 027c 21186600 		addu	$3,$3,$6
 364              		.loc 1 181 0
 365 0280 2128B100 		addu	$5,$5,$17
 366              		.loc 1 182 0
 367 0284 0010462C 		sltu	$6,$2,4096
 368              		.loc 1 181 0
 369 0288 2128A700 		addu	$5,$5,$7
 370              		.loc 1 182 0
 371 028c 21186600 		addu	$3,$3,$6
 372 0290 80360300 		sll	$6,$3,26
 373              		.loc 1 181 0
 374 0294 82210400 		srl	$4,$4,6
 375 0298 803E0500 		sll	$7,$5,26
 376              		.loc 1 182 0
 377 029c 82110200 		srl	$2,$2,6
 378 02a0 25104600 		or	$2,$2,$6
 379              		.loc 1 181 0
 380 02a4 25208700 		or	$4,$4,$7
 381              		.loc 1 177 0
 382 02a8 00202925 		addiu	$9,$9,8192
 383              		.loc 1 193 0
 384 02ac 25204401 		or	$4,$10,$4
 385              		.loc 1 194 0
 386 02b0 25104201 		or	$2,$10,$2
 387              		.loc 1 177 0
 388 02b4 2B303201 		sltu	$6,$9,$18
 389              		.loc 1 201 0
 390 02b8 000004AD 		sw	$4,0($8)
 391              		.loc 1 202 0
 392 02bc 040002AD 		sw	$2,4($8)
 393              		.loc 1 177 0
 394 02c0 E5FFC014 		bne	$6,$0,$L38
 395 02c4 08000825 		addiu	$8,$8,8
 396              	
 397              	$L40:
 398              		.loc 1 208 0
 399 02c8 21107401 		addu	$2,$11,$20
 400              		.loc 1 210 0
 401 02cc 2400BF8F 		lw	$31,36($sp)
 402 02d0 2000B48F 		lw	$20,32($sp)
 403 02d4 1C00B38F 		lw	$19,28($sp)
 404 02d8 1800B28F 		lw	$18,24($sp)
 405 02dc 1400B18F 		lw	$17,20($sp)
 406 02e0 1000B08F 		lw	$16,16($sp)
 407 02e4 0800E003 		j	$31
GAS LISTING /tmp/ccLt6UhX.s 			page 12


 408 02e8 2800BD27 		addiu	$sp,$sp,40
 409              	
 410              		.set	macro
 411              		.set	reorder
 412              	$LFE5:
 413              		.end	mapPhysicalAddress
 414              		.align	2
 415              		.globl	unmapPhysicalAddress
 416              		.ent	unmapPhysicalAddress
 417              		.type	unmapPhysicalAddress, @function
 418              	unmapPhysicalAddress:
 419              	$LFB6:
 211:/mnt/hgfs/boot/booter/source/tlb.c **** 
 212:/mnt/hgfs/boot/booter/source/tlb.c **** /********************************************************************/
 213:/mnt/hgfs/boot/booter/source/tlb.c **** void
 214:/mnt/hgfs/boot/booter/source/tlb.c **** unmapPhysicalAddress (void *va, unsigned long size)
 215:/mnt/hgfs/boot/booter/source/tlb.c **** {
 420              		.loc 1 215 0
 421              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 422              		.mask	0x00000000,0
 423              		.fmask	0x00000000,0
 424              		.set	noreorder
 425              		.set	nomacro
 426              		
 427              		.loc 1 215 0
 428 02ec 0800E003 		j	$31
 429 02f0 00000000 		nop
 430              	
 431              		.set	macro
 432              		.set	reorder
 433              	$LFE6:
 434              		.end	unmapPhysicalAddress
 435              	
 436              		.comm	L1PTE,1024,4
 437              	
 438              		.comm	L2PTE,32768,4
 439              		.section	.debug_frame,"",@progbits
 440              	$Lframe0:
 441 0000 0C000000 		.4byte	$LECIE0-$LSCIE0
 442              	$LSCIE0:
 443 0004 FFFFFFFF 		.4byte	0xffffffff
 444 0008 01       		.byte	0x1
 445 0009 00       		.ascii	"\000"
 446 000a 01       		.uleb128 0x1
 447 000b 04       		.sleb128 4
 448 000c 1F       		.byte	0x1f
 449 000d 0C       		.byte	0xc
 450 000e 1D       		.uleb128 0x1d
 451 000f 00       		.uleb128 0x0
 452              		.align	2
 453              	$LECIE0:
 454              	$LSFDE0:
 455 0010 14000000 		.4byte	$LEFDE0-$LASFDE0