forked from KolibriOS/kolibrios
388 lines
10 KiB
PHP
388 lines
10 KiB
PHP
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|||
|
|
;; ;;
|
|||
|
|
;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;;
|
|||
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|||
|
|
;; ;;
|
|||
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|||
|
|
|
|||
|
|
$Revision$
|
|||
|
|
|
|||
|
|
|
|||
|
|
MEM_WB equ 6 ;write-back memory
|
|||
|
|
MEM_WC equ 1 ;write combined memory
|
|||
|
|
MEM_UC equ 0 ;uncached memory
|
|||
|
|
|
|||
|
|
|
|||
|
|
align 4
|
|||
|
|
proc init_mem
|
|||
|
|
; calculate maximum allocatable address and number of allocatable pages
|
|||
|
|
mov edi, BOOT_VAR-OS_BASE + 0x9104
|
|||
|
|
mov ecx, [edi-4]
|
|||
|
|
xor esi, esi ; esi will hold total amount of memory
|
|||
|
|
xor edx, edx ; edx will hold maximum allocatable address
|
|||
|
|
.calcmax:
|
|||
|
|
; round all to pages
|
|||
|
|
mov eax, [edi]
|
|||
|
|
test eax, 0xFFF
|
|||
|
|
jz @f
|
|||
|
|
neg eax
|
|||
|
|
and eax, 0xFFF
|
|||
|
|
add [edi], eax
|
|||
|
|
adc dword [edi+4], 0
|
|||
|
|
sub [edi+8], eax
|
|||
|
|
sbb dword [edi+12], 0
|
|||
|
|
jc .unusable
|
|||
|
|
@@:
|
|||
|
|
and dword [edi+8], not 0xFFF
|
|||
|
|
jz .unusable
|
|||
|
|
; ignore memory after 4 Gb
|
|||
|
|
cmp dword [edi+4], 0
|
|||
|
|
jnz .unusable
|
|||
|
|
mov eax, [edi]
|
|||
|
|
cmp dword [edi+12], 0
|
|||
|
|
jnz .overflow
|
|||
|
|
add eax, [edi+8]
|
|||
|
|
jnc @f
|
|||
|
|
.overflow:
|
|||
|
|
mov eax, 0xFFFFF000
|
|||
|
|
@@:
|
|||
|
|
cmp edx, eax
|
|||
|
|
jae @f
|
|||
|
|
mov edx, eax
|
|||
|
|
@@:
|
|||
|
|
sub eax, [edi]
|
|||
|
|
mov [edi+8], eax
|
|||
|
|
add esi, eax
|
|||
|
|
jmp .usable
|
|||
|
|
.unusable:
|
|||
|
|
and dword [edi+8], 0
|
|||
|
|
.usable:
|
|||
|
|
add edi, 20
|
|||
|
|
loop .calcmax
|
|||
|
|
.calculated:
|
|||
|
|
mov [MEM_AMOUNT-OS_BASE], esi
|
|||
|
|
mov [pg_data.mem_amount-OS_BASE], esi
|
|||
|
|
shr esi, 12
|
|||
|
|
mov [pg_data.pages_count-OS_BASE], esi
|
|||
|
|
|
|||
|
|
shr edx, 12
|
|||
|
|
add edx, 31
|
|||
|
|
and edx, not 31
|
|||
|
|
shr edx, 3
|
|||
|
|
mov [pg_data.pagemap_size-OS_BASE], edx
|
|||
|
|
|
|||
|
|
add edx, (sys_pgmap-OS_BASE)+4095
|
|||
|
|
and edx, not 4095
|
|||
|
|
mov [tmp_page_tabs], edx
|
|||
|
|
|
|||
|
|
mov edx, esi
|
|||
|
|
and edx, -1024
|
|||
|
|
cmp edx, (OS_BASE/4096)
|
|||
|
|
jbe @F
|
|||
|
|
mov edx, (OS_BASE/4096)
|
|||
|
|
jmp .set
|
|||
|
|
@@:
|
|||
|
|
cmp edx, (HEAP_BASE-OS_BASE+HEAP_MIN_SIZE)/4096
|
|||
|
|
jae .set
|
|||
|
|
mov edx, (HEAP_BASE-OS_BASE+HEAP_MIN_SIZE)/4096
|
|||
|
|
.set:
|
|||
|
|
mov [pg_data.kernel_pages-OS_BASE], edx
|
|||
|
|
shr edx, 10
|
|||
|
|
mov [pg_data.kernel_tables-OS_BASE], edx
|
|||
|
|
|
|||
|
|
xor eax, eax
|
|||
|
|
mov edi, sys_pgdir-OS_BASE
|
|||
|
|
mov ecx, 4096/4
|
|||
|
|
cld
|
|||
|
|
rep stosd
|
|||
|
|
|
|||
|
|
mov edx, (sys_pgdir-OS_BASE)+ 0x800; (OS_BASE shr 20)
|
|||
|
|
|
|||
|
|
mov ebx, cr4
|
|||
|
|
or ebx, CR4_PSE
|
|||
|
|
mov eax, PG_LARGE+PG_SW
|
|||
|
|
mov cr4, ebx
|
|||
|
|
dec [pg_data.kernel_tables-OS_BASE]
|
|||
|
|
|
|||
|
|
mov [edx], eax
|
|||
|
|
add edx, 4
|
|||
|
|
|
|||
|
|
mov edi, [tmp_page_tabs]
|
|||
|
|
mov ecx, [pg_data.kernel_tables-OS_BASE]
|
|||
|
|
shl ecx, 10
|
|||
|
|
xor eax, eax
|
|||
|
|
rep stosd
|
|||
|
|
|
|||
|
|
mov ecx, [pg_data.kernel_tables-OS_BASE]
|
|||
|
|
mov eax, [tmp_page_tabs]
|
|||
|
|
or eax, PG_SW
|
|||
|
|
mov edi, edx
|
|||
|
|
|
|||
|
|
.map_kernel_tabs:
|
|||
|
|
stosd
|
|||
|
|
add eax, 0x1000
|
|||
|
|
dec ecx
|
|||
|
|
jnz .map_kernel_tabs
|
|||
|
|
|
|||
|
|
mov dword [sys_pgdir-OS_BASE+(page_tabs shr 20)], sys_pgdir+PG_SW-OS_BASE
|
|||
|
|
|
|||
|
|
mov edi, (sys_pgdir-OS_BASE)
|
|||
|
|
lea esi, [edi+(OS_BASE shr 20)]
|
|||
|
|
movsd
|
|||
|
|
movsd
|
|||
|
|
ret
|
|||
|
|
endp
|
|||
|
|
|
|||
|
|
align 4
|
|||
|
|
proc init_page_map
|
|||
|
|
; mark all memory as unavailable
|
|||
|
|
mov edi, sys_pgmap-OS_BASE
|
|||
|
|
mov ecx, [pg_data.pagemap_size-OS_BASE]
|
|||
|
|
shr ecx, 2
|
|||
|
|
xor eax, eax
|
|||
|
|
cld
|
|||
|
|
rep stosd
|
|||
|
|
|
|||
|
|
; scan through memory map and mark free areas as available
|
|||
|
|
mov ebx, BOOT_VAR-OS_BASE + 0x9104
|
|||
|
|
mov edx, [ebx-4]
|
|||
|
|
.scanmap:
|
|||
|
|
mov ecx, [ebx+8]
|
|||
|
|
shr ecx, 12 ; ecx = number of pages
|
|||
|
|
jz .next
|
|||
|
|
mov edi, [ebx]
|
|||
|
|
shr edi, 12 ; edi = first page
|
|||
|
|
mov eax, edi
|
|||
|
|
shr edi, 5
|
|||
|
|
shl edi, 2
|
|||
|
|
add edi, sys_pgmap-OS_BASE
|
|||
|
|
and eax, 31
|
|||
|
|
jz .startok
|
|||
|
|
add ecx, eax
|
|||
|
|
sub ecx, 32
|
|||
|
|
jbe .onedword
|
|||
|
|
push ecx
|
|||
|
|
mov ecx, eax
|
|||
|
|
or eax, -1
|
|||
|
|
shl eax, cl
|
|||
|
|
or [edi], eax
|
|||
|
|
add edi, 4
|
|||
|
|
pop ecx
|
|||
|
|
.startok:
|
|||
|
|
push ecx
|
|||
|
|
shr ecx, 5
|
|||
|
|
or eax, -1
|
|||
|
|
rep stosd
|
|||
|
|
pop ecx
|
|||
|
|
and ecx, 31
|
|||
|
|
neg eax
|
|||
|
|
shl eax, cl
|
|||
|
|
dec eax
|
|||
|
|
or [edi], eax
|
|||
|
|
jmp .next
|
|||
|
|
.onedword:
|
|||
|
|
add ecx, 32
|
|||
|
|
sub ecx, eax
|
|||
|
|
@@:
|
|||
|
|
bts [edi], eax
|
|||
|
|
inc eax
|
|||
|
|
loop @b
|
|||
|
|
.next:
|
|||
|
|
add ebx, 20
|
|||
|
|
dec edx
|
|||
|
|
jnz .scanmap
|
|||
|
|
|
|||
|
|
; mark kernel memory as allocated (unavailable)
|
|||
|
|
mov ecx, [tmp_page_tabs]
|
|||
|
|
mov edx, [pg_data.pages_count-OS_BASE]
|
|||
|
|
shr ecx, 12
|
|||
|
|
add ecx, [pg_data.kernel_tables-OS_BASE]
|
|||
|
|
sub edx, ecx
|
|||
|
|
mov [pg_data.pages_free-OS_BASE], edx
|
|||
|
|
|
|||
|
|
mov edi, sys_pgmap-OS_BASE
|
|||
|
|
mov ebx, ecx
|
|||
|
|
shr ecx, 5
|
|||
|
|
xor eax, eax
|
|||
|
|
rep stosd
|
|||
|
|
|
|||
|
|
not eax
|
|||
|
|
mov ecx, ebx
|
|||
|
|
and ecx, 31
|
|||
|
|
shl eax, cl
|
|||
|
|
and [edi], eax
|
|||
|
|
add edi, OS_BASE
|
|||
|
|
mov [page_start-OS_BASE], edi;
|
|||
|
|
|
|||
|
|
mov ebx, sys_pgmap
|
|||
|
|
add ebx, [pg_data.pagemap_size-OS_BASE]
|
|||
|
|
mov [page_end-OS_BASE], ebx
|
|||
|
|
|
|||
|
|
mov [pg_data.pg_mutex-OS_BASE], 0
|
|||
|
|
ret
|
|||
|
|
endp
|
|||
|
|
|
|||
|
|
align 4
|
|||
|
|
|
|||
|
|
init_BIOS32:
|
|||
|
|
mov edi, 0xE0000
|
|||
|
|
.pcibios_nxt:
|
|||
|
|
cmp dword[edi], '_32_' ; "magic" word
|
|||
|
|
je .BIOS32_found
|
|||
|
|
.pcibios_nxt2:
|
|||
|
|
add edi, 0x10
|
|||
|
|
cmp edi, 0xFFFF0
|
|||
|
|
je .BIOS32_not_found
|
|||
|
|
jmp .pcibios_nxt
|
|||
|
|
.BIOS32_found: ; magic word found, check control summ
|
|||
|
|
|
|||
|
|
movzx ecx, byte[edi + 9]
|
|||
|
|
shl ecx, 4
|
|||
|
|
mov esi, edi
|
|||
|
|
xor eax, eax
|
|||
|
|
cld ; paranoia
|
|||
|
|
@@: lodsb
|
|||
|
|
add ah, al
|
|||
|
|
loop @b
|
|||
|
|
jnz .pcibios_nxt2 ; control summ must be zero
|
|||
|
|
; BIOS32 service found !
|
|||
|
|
mov ebp, [edi + 4]
|
|||
|
|
mov [bios32_entry], ebp
|
|||
|
|
; check PCI BIOS present
|
|||
|
|
mov eax, '$PCI'
|
|||
|
|
xor ebx, ebx
|
|||
|
|
push cs ; special for 'ret far' from BIOS
|
|||
|
|
call ebp
|
|||
|
|
test al, al
|
|||
|
|
jnz .PCI_BIOS32_not_found
|
|||
|
|
|
|||
|
|
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> PCI BIOS
|
|||
|
|
|
|||
|
|
add ebx, OS_BASE
|
|||
|
|
dec ecx
|
|||
|
|
mov [(pci_code_32-OS_BASE)], cx ;limit 0-15
|
|||
|
|
mov [(pci_data_32-OS_BASE)], cx ;limit 0-15
|
|||
|
|
|
|||
|
|
mov [(pci_code_32-OS_BASE)+2], bx ;base 0-15
|
|||
|
|
mov [(pci_data_32-OS_BASE)+2], bx ;base 0-15
|
|||
|
|
|
|||
|
|
shr ebx, 16
|
|||
|
|
mov [(pci_code_32-OS_BASE)+4], bl ;base 16-23
|
|||
|
|
mov [(pci_data_32-OS_BASE)+4], bl ;base 16-23
|
|||
|
|
|
|||
|
|
shr ecx, 16
|
|||
|
|
and cl, 0x0F
|
|||
|
|
mov ch, bh
|
|||
|
|
add cx, D32
|
|||
|
|
mov [(pci_code_32-OS_BASE)+6], cx ;lim 16-19 &
|
|||
|
|
mov [(pci_data_32-OS_BASE)+6], cx ;base 24-31
|
|||
|
|
|
|||
|
|
mov [(pci_bios_entry-OS_BASE)], edx
|
|||
|
|
; jmp .end
|
|||
|
|
.PCI_BIOS32_not_found:
|
|||
|
|
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> pci_emu_dat
|
|||
|
|
.BIOS32_not_found:
|
|||
|
|
.end:
|
|||
|
|
ret
|
|||
|
|
|
|||
|
|
align 4
|
|||
|
|
proc test_cpu
|
|||
|
|
locals
|
|||
|
|
cpu_type dd ?
|
|||
|
|
cpu_id dd ?
|
|||
|
|
cpu_Intel dd ?
|
|||
|
|
cpu_AMD dd ?
|
|||
|
|
endl
|
|||
|
|
|
|||
|
|
xor eax, eax
|
|||
|
|
mov [cpu_type], eax
|
|||
|
|
mov [cpu_caps-OS_BASE], eax
|
|||
|
|
mov [cpu_caps+4-OS_BASE], eax
|
|||
|
|
|
|||
|
|
pushfd
|
|||
|
|
pop eax
|
|||
|
|
mov ecx, eax
|
|||
|
|
xor eax, 0x40000
|
|||
|
|
push eax
|
|||
|
|
popfd
|
|||
|
|
pushfd
|
|||
|
|
pop eax
|
|||
|
|
xor eax, ecx
|
|||
|
|
mov [cpu_type], CPU_386
|
|||
|
|
jz .end_cpuid
|
|||
|
|
push ecx
|
|||
|
|
popfd
|
|||
|
|
|
|||
|
|
mov [cpu_type], CPU_486
|
|||
|
|
mov eax, ecx
|
|||
|
|
xor eax, 0x200000
|
|||
|
|
push eax
|
|||
|
|
popfd
|
|||
|
|
pushfd
|
|||
|
|
pop eax
|
|||
|
|
xor eax, ecx
|
|||
|
|
je .end_cpuid
|
|||
|
|
mov [cpu_id], 1
|
|||
|
|
|
|||
|
|
xor eax, eax
|
|||
|
|
cpuid
|
|||
|
|
|
|||
|
|
mov [cpu_vendor-OS_BASE], ebx
|
|||
|
|
mov [cpu_vendor+4-OS_BASE], edx
|
|||
|
|
mov [cpu_vendor+8-OS_BASE], ecx
|
|||
|
|
cmp ebx, dword [intel_str-OS_BASE]
|
|||
|
|
jne .check_AMD
|
|||
|
|
cmp edx, dword [intel_str+4-OS_BASE]
|
|||
|
|
jne .check_AMD
|
|||
|
|
cmp ecx, dword [intel_str+8-OS_BASE]
|
|||
|
|
jne .check_AMD
|
|||
|
|
mov [cpu_Intel], 1
|
|||
|
|
cmp eax, 1
|
|||
|
|
jl .end_cpuid
|
|||
|
|
mov eax, 1
|
|||
|
|
cpuid
|
|||
|
|
mov [cpu_sign-OS_BASE], eax
|
|||
|
|
mov [cpu_info-OS_BASE], ebx
|
|||
|
|
mov [cpu_caps-OS_BASE], edx
|
|||
|
|
mov [cpu_caps+4-OS_BASE],ecx
|
|||
|
|
|
|||
|
|
shr eax, 8
|
|||
|
|
and eax, 0x0f
|
|||
|
|
ret
|
|||
|
|
.end_cpuid:
|
|||
|
|
mov eax, [cpu_type]
|
|||
|
|
ret
|
|||
|
|
|
|||
|
|
.check_AMD:
|
|||
|
|
cmp ebx, dword [AMD_str-OS_BASE]
|
|||
|
|
jne .unknown
|
|||
|
|
cmp edx, dword [AMD_str+4-OS_BASE]
|
|||
|
|
jne .unknown
|
|||
|
|
cmp ecx, dword [AMD_str+8-OS_BASE]
|
|||
|
|
jne .unknown
|
|||
|
|
mov [cpu_AMD], 1
|
|||
|
|
cmp eax, 1
|
|||
|
|
jl .unknown
|
|||
|
|
mov eax, 1
|
|||
|
|
cpuid
|
|||
|
|
mov [cpu_sign-OS_BASE], eax
|
|||
|
|
mov [cpu_info-OS_BASE], ebx
|
|||
|
|
mov [cpu_caps-OS_BASE], edx
|
|||
|
|
mov [cpu_caps+4-OS_BASE],ecx
|
|||
|
|
shr eax, 8
|
|||
|
|
and eax, 0x0f
|
|||
|
|
ret
|
|||
|
|
.unknown:
|
|||
|
|
mov eax, 1
|
|||
|
|
cpuid
|
|||
|
|
mov [cpu_sign-OS_BASE], eax
|
|||
|
|
mov [cpu_info-OS_BASE], ebx
|
|||
|
|
mov [cpu_caps-OS_BASE], edx
|
|||
|
|
mov [cpu_caps+4-OS_BASE],ecx
|
|||
|
|
shr eax, 8
|
|||
|
|
and eax, 0x0f
|
|||
|
|
ret
|
|||
|
|
endp
|
|||
|
|
|
|||
|
|
|