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Rev 837 Rev 839
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 837 $
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$Revision: 839 $
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           endl
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           endl
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 320 
 
321 
           cmp dword [LFBAddress], -1
 321 
           cmp dword [LFBAddress], -1
322 
           jne @f
 322 
           jne @f
323 
           mov [BOOT_VAR+0x901c],byte 2
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           mov [BOOT_VAR+0x901c],byte 2
- 
 
 324 
           stdcall alloc_pages, 0x280000 shr 12
324 
           stdcall kernel_alloc, 0x280000
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           add eax, OS_BASE
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           mov [LFBAddress], eax
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           mov [LFBAddress], eax
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           ret
 327 
           ret
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@@:
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@@:
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           test [SCR_MODE],word 0100000000000000b
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           test [SCR_MODE],word 0100000000000000b
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           jnz @f
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           jnz @f
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           mov [BOOT_VAR+0x901c],byte 2
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           mov [BOOT_VAR+0x901c],byte 2
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           ret
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           ret
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@@:
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@@:
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           call init_mtrr
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           call init_mtrr
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 - 
 
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           mov edx, LFB_BASE
 - 
 
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           mov esi, [LFBAddress]
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           mov edi, 0x00800000
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           mov dword [exp_lfb+4], edx
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           xchg bx, bx
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 337 
 
339 
 
 338 
           mov eax, [LFBAddress]
- 
 
 339 
           or eax, PG_LARGE+PG_UW
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           shr edi, 12
 - 
 
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           mov [pg_count], edi
 - 
 
342 
           shr edi, 10
 - 
 
343 
 
 340 
           mov [sys_pgdir+(LFB_BASE shr 20)], eax
344 
           bt [cpu_caps], CAPS_PSE
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345 
           jnc .map_page_tables
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346 
           or esi, PG_LARGE+PG_UW
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           mov edx, sys_pgdir+(LFB_BASE shr 20)
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@@:
 - 
 
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           mov [edx], esi
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           add edx, 4
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           add eax, 0x00400000
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           add esi, 0x00400000
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           mov [sys_pgdir+4+(LFB_BASE shr 20)], eax
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           dec edi
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353 
           jnz @B
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           mov dword [exp_lfb+4], LFB_BASE
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355 
           bt [cpu_caps], CAPS_PGE
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           bt [cpu_caps], CAPS_PGE
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           jnc @F
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           jnc @F
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           or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL
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@@:
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359 
           mov dword [LFBAddress], LFB_BASE
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360 
           mov eax, cr3       ;flush TLB
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361 
           mov cr3, eax
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362 
           ret
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363 
 
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364 
.map_page_tables:
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365 
 
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@@:
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367 
           call alloc_page
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368 
           stdcall map_page_table, edx, eax
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369 
           add edx, 0x00400000
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370 
           dec edi
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371 
           jnz @B
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372 
 
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373 
           mov eax, [LFBAddress]
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           mov edi, page_tabs + (LFB_BASE shr 10)
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           or eax, PG_UW
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           mov ecx, [pg_count]
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377 
           cld
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@@:
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379 
           stosd
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           add eax, 0x1000
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381 
           dec ecx
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           jnz @B
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           or dword [sys_pgdir+(LFB_BASE shr 20)], PG_GLOBAL
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@@:
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           mov dword [LFBAddress], LFB_BASE
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           mov dword [LFBAddress], LFB_BASE
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           mov ds, ax
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           mov ds, ax
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           mov es, ax
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           mov es, ax
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           inc [pg_data.pages_faults]
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565 
 
 - 
 
566 
;           xchg bx,bx
 - 
 
567 
;           jmp .exit
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           inc [pg_data.pages_faults]
568 
 
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- 
 
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           mov ebx, [.err_addr]
- 
 
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           mov eax, [.err_code]
569 
           mov ebx, [.err_addr]
 534 
 
570 
           mov eax, [.err_code]
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     ;      xchg bx, bx
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- 
 
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- 
 
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           cmp ebx, HEAP_BASE
- 
 
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           jb .user_space      ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ;
571 
 
 539 
 
- 
 
 540 
           cmp ebx, LFB_BASE
- 
 
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           jb  .kernel_heap
- 
 
 542 
 
572 
           cmp ebx, OS_BASE
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           cmp ebx, page_tabs
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- 
 
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           jb .lfb
- 
 
 545 
 
573 
           jb .user_space      ;ñòðàíèöà â ïàìÿòè ïðèëîæåíèÿ ;
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           cmp ebx, OS_BASE
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 547 
           jb .core_tabs
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           cmp ebx, page_tabs
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           jb .kernel_space    ;ñòðàíèöà â ïàìÿòè ÿäðà
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 - 
 
578 
           cmp ebx, kernel_tabs
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579 
           jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ;
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           jmp .core_tabs
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- 
 
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         ;  cmp ebx, kernel_tabs
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         ;  jb .alloc;.app_tabs ;òàáëèöû ñòðàíèö ïðèëîæåíèÿ ;
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                               ;ïðîñòî ñîçäàäèì îäíó
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- 
 
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.lfb:
- 
 
 556 
           shr ebx, 22
- 
 
 557 
           mov edx, [sys_pgdir + ebx*4]
- 
 
 558 
           mov [master_tab + ebx*4], edx
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 559 
           jmp .exit
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 560 
 
580 
                               ;ïðîñòî ñîçäàäèì îäíó
 561 
.core_tabs:
- 
 
 562 
 
- 
 
 563 
           shr ebx, 12
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 564 
           and ebx, 0x3FF
- 
 
 565 
           mov edx, [master_tab + ebx*4]
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 566 
           test edx, PG_MAP
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           jz .check_ptab      ;òàáëèöà ñòðàíèö íå ñîçäàíà
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- 
 
 569 
align 4
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.kernel_heap:
- 
 
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581 
 
 572 
           shr ebx, 22
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 573 
           mov edx, [master_tab + ebx*4]
- 
 
 574 
           test edx, PG_MAP
- 
 
 575 
           jz .check_ptab      ;òàáëèöà ñòðàíèö íå ñîçäàíà
- 
 
 576 
 
- 
 
 577 
.check_ptab:
582 
           cmp ebx, LFB_BASE
 578 
           mov edx, [sys_pgdir + ebx*4]
- 
 
 579 
           test edx, PG_MAP
- 
 
 580 
           jnz @F
- 
 
 581 
 
- 
 
 582 
           call alloc_page
- 
 
 583 
           test eax, eax
- 
 
 584 
           jz .fail
- 
 
 585 
 
- 
 
 586 
           lea edx, [eax + PG_UW]
- 
 
 587 
           lea edi, [eax + OS_BASE]
- 
 
 588 
           mov ecx, 1024
- 
 
 589 
           xor eax, eax
- 
 
 590 
           cld
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583 
           jb .core_tabs       ;òàáëèöû ñòðàíèö ÿäðà
 591 
           rep stosd
584 
                               ;Îøèáêà
 592 
 
585 
.lfb:
 593 
           mov [sys_pgdir + ebx*4], edx
586 
                               ;îáëàñòü LFB
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@@:
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674 
           jmp .exit
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           jmp .exit
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 - 
 
677 
;íå îáðàáàòûâàåì. Îøèáêà
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678 
 
 685 
;íå îáðàáàòûâàåì. Îøèáêà
679 
.core_tabs:
 686 
 
680 
.fail:
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.fail: