Subversion Repositories HelenOS

Rev

Rev 4345 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 4345 Rev 4346
Line 60... Line 60...
60
 
60
	
61
	movw $gdtselector(KDATA_DES), %cx
61
	movw $gdtselector(KDATA_DES), %cx
62
	movw %cx, %es
62
	movw %cx, %es
63
	movw %cx, %ds							# kernel data + stack
63
	movw %cx, %ds                       # kernel data + stack
64
	movw %cx, %ss
64
	movw %cx, %ss
-
 
65
	
-
 
66
	#
65
	# Simics seems to remove hidden part of GS on entering user mode
67
	# Simics seems to remove hidden part of GS on entering user mode
66
	#  when _visible_ part of GS does not point to user-mode segment
68
	# when _visible_ part of GS does not point to user-mode segment.
-
 
69
	#
-
 
70
	
67
	movw $gdtselector(UDATA_DES), %cx
71
	movw $gdtselector(UDATA_DES), %cx
68
	movw %cx, %fs
72
	movw %cx, %fs
69
	movw %cx, %gs
73
	movw %cx, %gs
70
	
74
	
71
	jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point
75
	jmpl $gdtselector(KTEXT32_DES), $multiboot_meeting_point
72
	multiboot_meeting_point:
76
	multiboot_meeting_point:
73
	
77
	
74
	movl %eax, grub_eax						# save parameters from GRUB
78
	movl %eax, grub_eax                 # save parameters from GRUB
75
	movl %ebx, grub_ebx
79
	movl %ebx, grub_ebx
76
	
80
	
-
 
81
	#
77
	# Protected 32-bit. We want to reuse the code-seg descriptor,
82
	# Protected 32-bit. We want to reuse the code-seg descriptor,
78
	# the Default operand size must not be 1 when entering long mode
83
	# the Default operand size must not be 1 when entering long mode.
-
 
84
	#
79
	
85
	
80
	movl $(INTEL_CPUID_EXTENDED), %eax  
86
	movl $(INTEL_CPUID_EXTENDED), %eax
81
 	cpuid
87
	cpuid
82
 	cmp $(INTEL_CPUID_EXTENDED), %eax
88
	cmp $(INTEL_CPUID_EXTENDED), %eax
83
	ja extended_cpuid_supported
89
	ja extended_cpuid_supported
Line 121... Line 127...
121
		movl $sse2_msg, %esi
127
		movl $sse2_msg, %esi
122
		jmp error_halt
128
		jmp error_halt
123
	
129
	
124
	sse2_supported:
130
	sse2_supported:
125
	
131
 
126
#ifdef CONFIG_FB
-
 
127
	mov $vesa_init, %esi
132
#include "vesa_prot.inc"
128
	mov $VESA_INIT_SEGMENT << 4, %edi
-
 
129
	mov $e_vesa_init - vesa_init, %ecx
-
 
130
	rep movsb
-
 
131
 
-
 
132
	mov $VESA_INIT_SEGMENT << 4, %edi
-
 
133
	jmpl *%edi
-
 
134
	
-
 
135
	vesa_meeting_point:
-
 
136
	
-
 
137
	mov %esi, KA2PA(vesa_ph_addr)
-
 
138
	mov %di, KA2PA(vesa_height)
-
 
139
	shr $16, %edi
-
 
140
	mov %di, KA2PA(vesa_width)
-
 
141
	mov %bx, KA2PA(vesa_scanline)
-
 
142
	shr $16, %ebx
-
 
143
	mov %bx, KA2PA(vesa_bpp)
-
 
144
#endif	
-
 
145
	
133
 
-
 
134
	#
146
	# Enable 64-bit page translation entries - CR4.PAE = 1.
135
	# Enable 64-bit page translation entries - CR4.PAE = 1.
147
	# Paging is not enabled until after long mode is enabled
136
	# Paging is not enabled until after long mode is enabled.
-
 
137
	#
148
	
138
	
149
	movl %cr4, %eax
139
	movl %cr4, %eax
150
	btsl $5, %eax
140
	btsl $5, %eax
151
	movl %eax, %cr4
141
	movl %eax, %cr4
152
 
142
	
153
	# Set up paging tables
143
	# set up paging tables
154
	
144
	
155
	leal ptl_0, %eax
145
	leal ptl_0, %eax
156
	movl %eax, %cr3
146
	movl %eax, %cr3
157
	
147
	
158
	# Enable long mode
148
	# enable long mode
159
	
149
	
160
	movl $EFER_MSR_NUM, %ecx			# EFER MSR number
150
	movl $EFER_MSR_NUM, %ecx            # EFER MSR number
161
	rdmsr						# Read EFER
151
	rdmsr                               # read EFER
162
	btsl $AMD_LME_FLAG, %eax			# Set LME = 1
152
	btsl $AMD_LME_FLAG, %eax            # set LME = 1
163
	wrmsr						# Write EFER
153
	wrmsr                               # write EFER
164
	
154
	
165
	# Enable paging to activate long mode (set CR0.PG = 1)
155
	# enable paging to activate long mode (set CR0.PG = 1)
166
	
156
	
167
	movl %cr0, %eax
157
	movl %cr0, %eax
168
	btsl $31, %eax
158
	btsl $31, %eax
169
	movl %eax, %cr0
159
	movl %eax, %cr0
170
	
160
	
171
	# At this point we are in compatibility mode
161
	# at this point we are in compatibility mode
172
	
162
	
173
	jmpl $gdtselector(KTEXT_DES), $start64
163
	jmpl $gdtselector(KTEXT_DES), $start64
174
 
164
 
175
.code64
165
.code64
176
start64:
166
start64:
177
	movq $(PA2KA(START_STACK)), %rsp
167
	movq $(PA2KA(START_STACK)), %rsp
178
 
168
	
179
	# arch_pre_main(grub_eax, grub_ebx)
169
	# call arch_pre_main(grub_eax, grub_ebx)
180
	xorq %rdi, %rdi
170
	xorq %rdi, %rdi
181
	movl grub_eax, %edi
171
	movl grub_eax, %edi
182
	xorq %rsi, %rsi
172
	xorq %rsi, %rsi
183
	movl grub_ebx, %esi
173
	movl grub_ebx, %esi
184
	call arch_pre_main
174
	call arch_pre_main
185
 
175
	
186
	call main_bsp  
176
	call main_bsp
187
 
177
	
188
	# Not reached.
178
	# not reached
189
	
179
	
190
	cli
180
	cli
-
 
181
	hlt0:
191
	hlt
182
		hlt
192
 
-
 
193
#ifdef CONFIG_FB
-
 
194
.code32
-
 
195
vesa_init:
-
 
196
	jmp $gdtselector(VESA_INIT_DES), $vesa_init_real - vesa_init
-
 
197
	
-
 
198
.code16
-
 
199
vesa_init_real:
-
 
200
	
-
 
201
	mov %cr0, %eax
-
 
202
	and $~1, %eax
-
 
203
	mov %eax, %cr0
-
 
204
	
-
 
205
	jmp $VESA_INIT_SEGMENT, $vesa_init_real2 - vesa_init
-
 
206
	
-
 
207
vesa_init_real2:
-
 
208
	
-
 
209
	mov $VESA_INIT_SEGMENT, %bx
-
 
210
	
-
 
211
	mov %bx, %es
-
 
212
	mov %bx, %fs
-
 
213
	mov %bx, %gs
-
 
214
	mov %bx, %ds
-
 
215
	mov %bx, %ss
-
 
216
	
-
 
217
	movl $0x0000fffc, %esp
-
 
218
	movl $0x0000fffc, %ebp
-
 
219
	
-
 
220
#define VESA_INFO_SIZE 1024
-
 
221
 
-
 
222
#define VESA_MODE_ATTRIBUTES_OFFSET 0
-
 
223
#define VESA_MODE_LIST_PTR_OFFSET 14
-
 
224
#define VESA_MODE_SCANLINE_OFFSET 16
-
 
225
#define VESA_MODE_WIDTH_OFFSET 18
-
 
226
#define VESA_MODE_HEIGHT_OFFSET 20
-
 
227
#define VESA_MODE_BPP_OFFSET 25
-
 
228
#define VESA_MODE_PHADDR_OFFSET 40
-
 
229
 
-
 
230
#define VESA_END_OF_MODES 0xffff
-
 
231
 
-
 
232
#define VESA_OK 0x4f
-
 
233
 
-
 
234
#define VESA_GET_INFO 0x4f00
-
 
235
#define VESA_GET_MODE_INFO 0x4f01
-
 
236
#define VESA_SET_MODE 0x4f02
-
 
237
#define VESA_SET_PALETTE 0x4f09
-
 
238
 
-
 
239
#define CONFIG_VESA_BPP_a 255
-
 
240
 
-
 
241
#if CONFIG_VESA_BPP == 24
-
 
242
#define CONFIG_VESA_BPP_VARIANT 32
-
 
243
#endif
-
 
244
 
-
 
245
	mov $VESA_GET_INFO, %ax
-
 
246
	mov $e_vesa_init - vesa_init, %di
-
 
247
	push %di
-
 
248
	int $0x10
-
 
249
	
-
 
250
	pop %di
-
 
251
	cmp $VESA_OK, %al
-
 
252
	jnz 0f
-
 
253
	
-
 
254
	mov 2 + VESA_MODE_LIST_PTR_OFFSET(%di), %si
-
 
255
	mov %si, %gs
-
 
256
	mov VESA_MODE_LIST_PTR_OFFSET(%di), %si
-
 
257
	
-
 
258
	add $VESA_INFO_SIZE, %di
-
 
259
 
-
 
260
1:# Try next mode
-
 
261
	mov %gs:(%si), %cx
-
 
262
	cmp $VESA_END_OF_MODES, %cx
-
 
263
	jz 0f
-
 
264
	
-
 
265
	inc %si
-
 
266
	inc %si
-
 
267
	push %cx
-
 
268
	push %di
-
 
269
	push %si
-
 
270
	mov $VESA_GET_MODE_INFO, %ax
-
 
271
	int $0x10
-
 
272
	
-
 
273
	pop %si
-
 
274
	pop %di
-
 
275
	pop %cx
-
 
276
	cmp $VESA_OK, %al
-
 
277
	jnz 0f
-
 
278
	
-
 
279
	mov $CONFIG_VESA_WIDTH, %ax
-
 
280
	cmp VESA_MODE_WIDTH_OFFSET(%di), %ax
-
 
281
	jnz 1b
-
 
282
	
-
 
283
	mov $CONFIG_VESA_HEIGHT, %ax
-
 
284
	cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax
-
 
285
	jnz 1b
-
 
286
	
-
 
287
	mov $CONFIG_VESA_BPP, %al
-
 
288
	cmp VESA_MODE_BPP_OFFSET(%di), %al
-
 
289
 
-
 
290
#ifdef CONFIG_VESA_BPP_VARIANT
-
 
291
	jz 2f
-
 
292
	
-
 
293
	mov $CONFIG_VESA_BPP_VARIANT, %al
-
 
294
	cmp VESA_MODE_BPP_OFFSET(%di), %al
-
 
295
#endif
-
 
296
	jnz 1b
-
 
297
	
-
 
298
2:
-
 
299
	
-
 
300
	mov %cx, %bx
-
 
301
	or $0xc000, %bx
-
 
302
	push %di
-
 
303
	mov $VESA_SET_MODE, %ax
-
 
304
	int $0x10
-
 
305
	
-
 
306
	pop %di
-
 
307
	cmp $VESA_OK, %al
-
 
308
	jnz 0f
-
 
309
 
-
 
310
#if CONFIG_VESA_BPP == 8
-
 
311
	
-
 
312
	# Set 3:2:3 VGA palette
-
 
313
	
-
 
314
	mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax
-
 
315
	push %di
-
 
316
	mov $vga323 - vesa_init, %di
-
 
317
	mov $0x100, %ecx
-
 
318
	
-
 
319
	bt $5, %ax						# Test if VGA compatible registers are present
-
 
320
	jnc vga_compat
-
 
321
		
-
 
322
		# Try VESA routine to set palette
-
 
323
		
-
 
324
		mov $VESA_SET_PALETTE, %ax
-
 
325
		xor %bl, %bl
-
 
326
		xor %dx, %dx
-
 
327
		int $0x10
-
 
328
		
-
 
329
		cmp $0x00, %ah
-
 
330
		je vga_not_compat
-
 
331
	
-
 
332
	vga_compat:
-
 
333
		
-
 
334
		# Try VGA registers to set palette
-
 
335
		
-
 
336
		movw $0x3c6, %dx				# Set palette mask
-
 
337
		movb $0xff, %al
-
 
338
		outb %al, %dx
-
 
339
		
-
 
340
		movw $0x3c8, %dx				# First index to set
-
 
341
		xor %al, %al
-
 
342
		outb %al, %dx
-
 
343
		
-
 
344
		movw $0x3c9, %dx				# Data port
-
 
345
		vga_loop:
-
 
346
			movb %es:2(%di), %al
-
 
347
			outb %al, %dx
-
 
348
			
-
 
349
			movb %es:1(%di), %al
-
 
350
			outb %al, %dx
-
 
351
			
-
 
352
			movb %es:(%di), %al
-
 
353
			outb %al, %dx
-
 
354
			
-
 
355
			addw $4, %di
-
 
356
			loop vga_loop
-
 
357
		
-
 
358
	vga_not_compat:
-
 
359
	
-
 
360
	pop %di
-
 
361
	
-
 
362
#endif
-
 
363
	
-
 
364
	mov VESA_MODE_PHADDR_OFFSET(%di), %esi
-
 
365
	mov VESA_MODE_WIDTH_OFFSET(%di), %ax
-
 
366
	shl $16, %eax
-
 
367
	mov VESA_MODE_HEIGHT_OFFSET(%di), %ax
-
 
368
	mov VESA_MODE_BPP_OFFSET(%di), %bl
-
 
369
	xor %bh, %bh
-
 
370
	shl $16, %ebx
-
 
371
	mov VESA_MODE_SCANLINE_OFFSET(%di), %bx
-
 
372
	mov %eax, %edi
-
 
373
	
-
 
374
8:
-
 
375
	
-
 
376
	mov %cr0, %eax
-
 
377
	or $1, %eax
-
 
378
	mov %eax, %cr0
-
 
379
	
-
 
380
	jmp 9f
183
		jmp hlt0
381
9:
-
 
382
	
-
 
383
	ljmpl $gdtselector(KTEXT32_DES), $(vesa_init_protect - vesa_init + VESA_INIT_SEGMENT << 4)
-
 
384
	
-
 
385
0:# No prefered mode found
-
 
386
	mov $0x111, %cx
-
 
387
	push %di
-
 
388
	push %cx
-
 
389
	mov $VESA_GET_MODE_INFO, %ax
-
 
390
	int $0x10
-
 
391
	
-
 
392
	pop %cx
-
 
393
	pop %di
-
 
394
	cmp $VESA_OK, %al
-
 
395
	jnz 1f
-
 
396
	jz 2b						# Force relative jump
-
 
397
 
-
 
398
1:
-
 
399
	mov $0x0003, %ax
-
 
400
	int $0x10
-
 
401
	mov $0xffffffff, %edi				# EGA text mode used, because of problems with VESA
-
 
402
	xor %ax, %ax
-
 
403
	jz 8b						# Force relative jump
-
 
404
 
-
 
405
vga323:
-
 
406
#include "vga323.pal"	
-
 
407
	
-
 
408
.code32
-
 
409
vesa_init_protect:
-
 
410
	movw $gdtselector(KDATA_DES), %cx
-
 
411
	movw %cx, %es
-
 
412
	movw %cx, %ds					# kernel data + stack
-
 
413
	movw %cx, %ss
-
 
414
	# Simics seems to remove hidden part of GS on entering user mode
-
 
415
	#  when _visible_ part of GS does not point to user-mode segment
-
 
416
	movw $gdtselector(UDATA_DES), %cx
-
 
417
	movw %cx, %fs
-
 
418
	movw %cx, %gs
-
 
419
	
-
 
420
	movl $START_STACK, %esp				# initialize stack pointer
-
 
421
	
-
 
422
	jmpl $gdtselector(KTEXT32_DES), $vesa_meeting_point
-
 
423
	
-
 
424
.align 4
-
 
425
e_vesa_init:
-
 
426
#endif
-
 
427
 
184
 
428
# Print string from %esi to EGA display (in red) and halt
185
# Print string from %esi to EGA display (in red) and halt
429
error_halt:
186
error_halt:
430
	movl $0xb8000, %edi				# base of EGA text mode memory
187
	movl $0xb8000, %edi       # base of EGA text mode memory
431
	xorl %eax, %eax
188
	xorl %eax, %eax
Line 445... Line 202...
445
	movw $0x3d5, %dx
202
	movw $0x3d5, %dx
446
	inb %dx, %al
203
	inb %dx, %al
447
	
204
	
448
	cmp $1920, %ax
205
	cmp $1920, %ax
449
	jbe cursor_ok
206
	jbe cursor_ok
-
 
207
	
450
		movw $1920, %ax				# sanity check for the cursor on the last line
208
		movw $1920, %ax       # sanity check for the cursor on the last line
-
 
209
	
451
	cursor_ok:
210
	cursor_ok:
452
	
211
	
453
	movw %ax, %bx
212
	movw %ax, %bx
454
	shl $1, %eax
213
	shl $1, %eax
455
	addl %eax, %edi
214
	addl %eax, %edi
Line 480... Line 239...
480
	movw $0x3d5, %dx
239
	movw $0x3d5, %dx
481
	movb %bl, %al
240
	movb %bl, %al
482
	outb %al, %dx
241
	outb %al, %dx
483
		
242
	
484
	cli
243
	cli
-
 
244
	hlt1:
485
	hlt
245
		hlt
-
 
246
		jmp hlt1
486
				
247
 
-
 
248
#include "vesa_real.inc"
487
 
249
 
488
.section K_INI_PTLS, "aw", @progbits
250
.section K_INI_PTLS, "aw", @progbits
489
 
251
 
490
#
252
#
491
# Macro for generating initial page table contents.
253
# Macro for generating initial page table contents.