Subversion Repositories HelenOS

Rev

Rev 2131 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2131 Rev 2307
Line 61... Line 61...
61
	movw %cx, %ss
61
	movw %cx, %ss
62
	
62
	
63
	jmpl $selector(KTEXT_DES), $multiboot_meeting_point
63
	jmpl $selector(KTEXT_DES), $multiboot_meeting_point
64
	multiboot_meeting_point:
64
	multiboot_meeting_point:
65
	
65
	
66
	pushl %ebx							# save parameters from GRUB
66
	movl %eax, grub_eax					# save parameters from GRUB
-
 
67
	movl %ebx, grub_ebx
-
 
68
	
67
	pushl %eax
69
	xorl %eax, %eax  
-
 
70
 	cpuid
-
 
71
 	cmp $0x0, %eax						# any function > 0?
-
 
72
	jbe pse_unsupported
-
 
73
	movl $0x1, %eax						# Basic function code 1
-
 
74
	cpuid
-
 
75
	bt $3, %edx							# Test if PSE is supported
-
 
76
	jc pse_supported
-
 
77
 
-
 
78
	pse_unsupported:
-
 
79
		movl $pse_msg, %esi
-
 
80
		jmp error_halt
-
 
81
	
-
 
82
	pse_supported:
68
	
83
	
69
#ifdef CONFIG_FB
84
#ifdef CONFIG_FB
70
	mov $vesa_init, %esi
85
	mov $vesa_init, %esi
71
	mov $VESA_INIT_SEGMENT << 4, %edi
86
	mov $VESA_INIT_SEGMENT << 4, %edi
72
	mov $e_vesa_init - vesa_init, %ecx
87
	mov $e_vesa_init - vesa_init, %ecx
Line 87... Line 102...
87
	mov %bx, KA2PA(vesa_bpp)
102
	mov %bx, KA2PA(vesa_bpp)
88
#endif	
103
#endif	
89
	
104
	
90
	call map_kernel							# map kernel and turn paging on
105
	call map_kernel							# map kernel and turn paging on
91
	
106
	
92
	popl %eax
107
	movl grub_eax, %eax
93
	popl %ebx
108
	movl grub_ebx, %ebx
94
	cmpl $MULTIBOOT_LOADER_MAGIC, %eax				# compare GRUB signature
109
	cmpl $MULTIBOOT_LOADER_MAGIC, %eax				# compare GRUB signature
95
	je valid_boot
110
	je valid_boot
96
		
111
		
97
		xorl %ecx, %ecx							# no memory size or map available
112
		xorl %ecx, %ecx							# no memory size or map available
98
		movl %ecx, e801memorysize
113
		movl %ecx, e801memorysize
Line 207... Line 222...
207
	movl $_hardcoded_unmapped_size, %ecx
222
	movl $_hardcoded_unmapped_size, %ecx
208
	cld
223
	cld
209
	rep movsb
224
	rep movsb
210
	
225
	
211
#endif
226
#endif
212
	
227
 
213
	call main_bsp								# never returns
228
	call main_bsp								# never returns
214
 
229
 
215
	cli
230
	cli
216
	hlt
231
	hlt
217
 
232
 
Line 220... Line 235...
220
	#
235
	#
221
	# Here we setup mapping for both the unmapped and mapped sections of the kernel.
236
	# Here we setup mapping for both the unmapped and mapped sections of the kernel.
222
	# For simplicity, we map the entire 4G space.
237
	# For simplicity, we map the entire 4G space.
223
	#
238
	#
224
	movl %cr4, %ecx
239
	movl %cr4, %ecx
225
	orl $(1<<4), %ecx
240
	orl $(1 << 4), %ecx							# turn PSE on
226
	movl %ecx, %cr4							# turn PSE on
241
	andl $(~(1 << 5)), %ecx						# turn PAE off
-
 
242
	movl %ecx, %cr4
227
	
243
	
228
	movl $(page_directory+0), %esi
244
	movl $(page_directory + 0), %esi
229
	movl $(page_directory+2048), %edi
245
	movl $(page_directory + 2048), %edi
230
	xorl %ecx, %ecx
246
	xorl %ecx, %ecx
231
	xorl %ebx, %ebx
247
	xorl %ebx, %ebx
232
0:
248
0:
233
	movl $((1<<7)|(1<<0)), %eax
249
	movl $((1 << 7) | (1 << 1) | (1 << 0)), %eax
234
	orl %ebx, %eax
250
	orl %ebx, %eax
235
	movl %eax, (%esi,%ecx,4)					# mapping 0x00000000+%ecx*4M => 0x00000000+%ecx*4M
251
	movl %eax, (%esi, %ecx, 4)					# mapping 0x00000000 + %ecx * 4M => 0x00000000 + %ecx * 4M
236
	movl %eax, (%edi,%ecx,4)					# mapping 0x80000000+%ecx*4M => 0x00000000+%ecx*4M
252
	movl %eax, (%edi, %ecx, 4)					# mapping 0x80000000 + %ecx * 4M => 0x00000000 + %ecx * 4M
237
	addl $(4*1024*1024), %ebx
253
	addl $(4 * 1024 * 1024), %ebx
238
 
254
 
239
	incl %ecx
255
	incl %ecx
240
	cmpl $512, %ecx
256
	cmpl $512, %ecx
241
	jl 0b
257
	jl 0b
242
 
258
 
243
	movl %esi, %cr3
259
	movl %esi, %cr3
244
	
260
	
245
	# turn paging on
-
 
246
	movl %cr0, %ebx
261
	movl %cr0, %ebx
247
	orl $(1<<31), %ebx
262
	orl $(1 << 31), %ebx						# turn paging on
248
	movl %ebx, %cr0
263
	movl %ebx, %cr0
249
	ret
264
	ret
250
 
265
 
-
 
266
# Print string from %esi to EGA display (in red) and halt
-
 
267
error_halt:
-
 
268
	movl $0xb8000, %edi						# base of EGA text mode memory
-
 
269
	xorl %eax, %eax
-
 
270
	
-
 
271
	movw $0x3d4, %dx						# read bits 8 - 15 of the cursor address
-
 
272
	movb $0xe, %al
-
 
273
	outb %al, %dx
-
 
274
	
-
 
275
	movw $0x3d5, %dx
-
 
276
	inb %dx, %al
-
 
277
	shl $8, %ax
-
 
278
	
-
 
279
	movw $0x3d4, %dx						# read bits 0 - 7 of the cursor address
-
 
280
	movb $0xf, %al
-
 
281
	outb %al, %dx
-
 
282
	
-
 
283
	movw $0x3d5, %dx
-
 
284
	inb %dx, %al
-
 
285
	
-
 
286
	cmp $1920, %ax
-
 
287
	jbe cursor_ok
-
 
288
		movw $1920, %ax						# sanity check for the cursor on the last line
-
 
289
	cursor_ok:
-
 
290
	
-
 
291
	movw %ax, %bx
-
 
292
	shl $1, %eax
-
 
293
	addl %eax, %edi
-
 
294
	
-
 
295
	movw $0x0c00, %ax						# black background, light red foreground
-
 
296
	cld
-
 
297
	
-
 
298
	ploop:
-
 
299
		lodsb
-
 
300
		cmp $0, %al
-
 
301
		je ploop_end
-
 
302
		stosw
-
 
303
		inc %bx	
-
 
304
		jmp ploop
-
 
305
	ploop_end:
-
 
306
	
-
 
307
	movw $0x3d4, %dx						# write bits 8 - 15 of the cursor address
-
 
308
	movb $0xe, %al
-
 
309
	outb %al, %dx
-
 
310
	
-
 
311
	movw $0x3d5, %dx
-
 
312
	movb %bh, %al
-
 
313
	outb %al, %dx
-
 
314
	
-
 
315
	movw $0x3d4, %dx						# write bits 0 - 7 of the cursor address
-
 
316
	movb $0xf, %al
-
 
317
	outb %al, %dx
-
 
318
	
-
 
319
	movw $0x3d5, %dx
-
 
320
	movb %bl, %al
-
 
321
	outb %al, %dx
-
 
322
		
-
 
323
	cli
-
 
324
	hlt
-
 
325
 
251
#ifdef CONFIG_FB
326
#ifdef CONFIG_FB
252
vesa_init:
327
vesa_init:
253
	jmp $selector(VESA_INIT_DES), $vesa_init_real - vesa_init
328
	jmp $selector(VESA_INIT_DES), $vesa_init_real - vesa_init
254
	
329
	
255
.code16
330
.code16
Line 276... Line 351...
276
	movl $0x0000fffc, %ebp
351
	movl $0x0000fffc, %ebp
277
	pushl %eax
352
	pushl %eax
278
	
353
	
279
#define VESA_INFO_SIZE 1024
354
#define VESA_INFO_SIZE 1024
280
 
355
 
-
 
356
#define VESA_MODE_ATTRIBUTES_OFFSET 0
281
#define VESA_MODE_LIST_PTR_OFFSET 14
357
#define VESA_MODE_LIST_PTR_OFFSET 14
-
 
358
#define VESA_MODE_SCANLINE_OFFSET 16
282
#define VESA_MODE_WIDTH_OFFSET 18
359
#define VESA_MODE_WIDTH_OFFSET 18
283
#define VESA_MODE_HEIGHT_OFFSET 20
360
#define VESA_MODE_HEIGHT_OFFSET 20
284
#define VESA_MODE_BPP_OFFSET 25
361
#define VESA_MODE_BPP_OFFSET 25
285
#define VESA_MODE_SCANLINE_OFFSET 16
-
 
286
#define VESA_MODE_PHADDR_OFFSET 40
362
#define VESA_MODE_PHADDR_OFFSET 40
287
 
363
 
288
#define VESA_END_OF_MODES 0xffff
364
#define VESA_END_OF_MODES 0xffff
289
 
365
 
290
#define VESA_OK 0x4f
366
#define VESA_OK 0x4f
291
 
367
 
292
#define VESA_GET_INFO 0x4f00
368
#define VESA_GET_INFO 0x4f00
293
#define VESA_GET_MODE_INFO 0x4f01
369
#define VESA_GET_MODE_INFO 0x4f01
294
#define VESA_SET_MODE 0x4f02
370
#define VESA_SET_MODE 0x4f02
295
 
-
 
296
#define CONFIG_VESA_BPP_a 255
371
#define VESA_SET_PALETTE 0x4f09
297
 
372
 
298
#if CONFIG_VESA_BPP == 24
373
#if CONFIG_VESA_BPP == 24
299
#undef CONFIG_VESA_BPP_a
-
 
300
#define CONFIG_VESA_BPP_a 32
374
#define CONFIG_VESA_BPP_VARIANT 32
301
#endif
375
#endif
302
 
376
 
303
	mov $VESA_GET_INFO, %ax
377
	mov $VESA_GET_INFO, %ax
304
	mov $e_vesa_init - vesa_init, %di
378
	mov $e_vesa_init - vesa_init, %di
305
	push %di
379
	push %di
Line 336... Line 410...
336
	
410
	
337
	mov $CONFIG_VESA_WIDTH, %ax
411
	mov $CONFIG_VESA_WIDTH, %ax
338
	cmp VESA_MODE_WIDTH_OFFSET(%di), %ax
412
	cmp VESA_MODE_WIDTH_OFFSET(%di), %ax
339
	jnz 1b
413
	jnz 1b
340
	
414
	
341
	mov $CONFIG_VESA_HEIGHT,%ax
415
	mov $CONFIG_VESA_HEIGHT, %ax
342
	cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax
416
	cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax
343
	jnz 1b
417
	jnz 1b
344
	
418
	
345
	mov $CONFIG_VESA_BPP, %al
419
	mov $CONFIG_VESA_BPP, %al
346
	cmp VESA_MODE_BPP_OFFSET(%di), %al
420
	cmp VESA_MODE_BPP_OFFSET(%di), %al
-
 
421
 
-
 
422
#ifdef CONFIG_VESA_BPP_VARIANT
347
	jz 2f
423
	jz 2f
348
	
424
	
349
	mov $CONFIG_VESA_BPP_a, %al
425
	mov $CONFIG_VESA_BPP_VARIANT, %al
350
	cmp VESA_MODE_BPP_OFFSET(%di), %al
426
	cmp VESA_MODE_BPP_OFFSET(%di), %al
-
 
427
#endif
351
	jnz 1b
428
	jnz 1b
352
	
429
 
353
2:
430
2:
354
	
431
	
355
	mov %cx, %bx
432
	mov %cx, %bx
356
	or $0xc000, %bx
433
	or $0xc000, %bx
357
	push %di
434
	push %di
Line 359... Line 436...
359
	int $0x10
436
	int $0x10
360
	
437
	
361
	pop %di
438
	pop %di
362
	cmp $VESA_OK, %al
439
	cmp $VESA_OK, %al
363
	jnz 0f
440
	jnz 0f
-
 
441
 
-
 
442
#if CONFIG_VESA_BPP == 8
-
 
443
	
-
 
444
	# Set 3:2:3 VGA palette
-
 
445
	
-
 
446
	mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax
-
 
447
	push %di
-
 
448
	mov $vga323 - vesa_init, %di
-
 
449
	mov $0x100, %ecx
-
 
450
	
-
 
451
	bt $5, %ax							# Test if VGA compatible registers are present
-
 
452
	jnc vga_compat
-
 
453
		
-
 
454
		# Try VESA routine to set palette
-
 
455
		
-
 
456
		mov $VESA_SET_PALETTE, %ax
-
 
457
		xor %bl, %bl
-
 
458
		xor %dx, %dx
-
 
459
		int $0x10
-
 
460
		
-
 
461
		jmp vga_not_compat
-
 
462
	
-
 
463
	vga_compat:
-
 
464
		
-
 
465
		# Try VGA registers to set palette
-
 
466
		
-
 
467
		movw $0x3c6, %dx						# Set palette mask
-
 
468
		movb $0xff, %al
-
 
469
		outb %al, %dx
-
 
470
		
-
 
471
		movw $0x3c8, %dx						# First index to set
-
 
472
		xor %al, %al
-
 
473
		outb %al, %dx
-
 
474
		
-
 
475
		movw $0x3c9, %dx						# Data port
-
 
476
		vga_loop:
-
 
477
			movb %es:2(%di), %al
-
 
478
			outb %al, %dx
-
 
479
			
-
 
480
			movb %es:1(%di), %al
-
 
481
			outb %al, %dx
-
 
482
			
-
 
483
			movb %es:(%di), %al
-
 
484
			outb %al, %dx
-
 
485
			
-
 
486
			addw $4, %di
-
 
487
			loop vga_loop
-
 
488
		
-
 
489
	vga_not_compat:
-
 
490
	
-
 
491
	pop %di
-
 
492
	
-
 
493
#endif
364
	
494
	
365
	mov VESA_MODE_PHADDR_OFFSET(%di), %esi
495
	mov VESA_MODE_PHADDR_OFFSET(%di), %esi
366
	mov VESA_MODE_WIDTH_OFFSET(%di), %ax
496
	mov VESA_MODE_WIDTH_OFFSET(%di), %ax
367
	shl $16, %eax
497
	shl $16, %eax
368
	mov VESA_MODE_HEIGHT_OFFSET(%di), %ax
498
	mov VESA_MODE_HEIGHT_OFFSET(%di), %ax
Line 400... Line 530...
400
	mov $0x0003, %ax
530
	mov $0x0003, %ax
401
	int $0x10
531
	int $0x10
402
	mov $0xffffffff, %edi		# EGA text mode used, because of problems with VESA
532
	mov $0xffffffff, %edi		# EGA text mode used, because of problems with VESA
403
	xor %ax, %ax
533
	xor %ax, %ax
404
	jz 8b						# Force relative jump
534
	jz 8b						# Force relative jump
405
	
535
 
-
 
536
vga323:
-
 
537
#include "vga323.pal"
406
 
538
 
407
.code32
539
.code32
408
vesa_init_protect:
540
vesa_init_protect:
409
	popl %esp
-
 
410
 
-
 
411
	movw $selector(KDATA_DES), %cx
541
	movw $selector(KDATA_DES), %cx
412
	movw %cx, %es
542
	movw %cx, %es
413
	movw %cx, %fs
543
	movw %cx, %fs
414
	movw %cx, %gs
544
	movw %cx, %gs
415
	movw %cx, %ds					# kernel data + stack
545
	movw %cx, %ds					# kernel data + stack
416
	movw %cx, %ss
546
	movw %cx, %ss
417
	
547
	
-
 
548
	movl $START_STACK, %esp			# initialize stack pointer
-
 
549
 
418
	jmpl $selector(KTEXT_DES), $vesa_meeting_point
550
	jmpl $selector(KTEXT_DES), $vesa_meeting_point
419
 
551
 
420
.align 4
552
.align 4
421
e_vesa_init:
553
e_vesa_init:
422
#endif	
554
#endif	
Line 424... Line 556...
424
.section K_DATA_START, "aw", @progbits
556
.section K_DATA_START, "aw", @progbits
425
 
557
 
426
.align 4096
558
.align 4096
427
page_directory:
559
page_directory:
428
	.space 4096, 0
560
	.space 4096, 0
-
 
561
 
-
 
562
grub_eax:
-
 
563
	.long 0
-
 
564
 
-
 
565
grub_ebx:
-
 
566
	.long 0
-
 
567
 
-
 
568
pse_msg:
-
 
569
	.asciz "Page Size Extension not supported. System halted."