forked from KolibriOS/kolibrios
b229fdc2c2
Step 1: 1) Allocate of separate area for everyone IDE device. 2) Usage of the allocated areas for HDD. (Cache CD\DVD - not realized, but the memory for it is allocated. This be realized in step 2). 3) The area of memory 0x80300000 - > 0x80400000 now is free and is not used. 4) The area of memory 0x80284000 - > 0x8028BFFF is used for HDD DMA. git-svn-id: svn://kolibrios.org@580 a494cfbc-eb01-0410-851d-a64ba20cac60
389 lines
8.9 KiB
PHP
389 lines
8.9 KiB
PHP
;cache_ide0_pointer dd 0
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;cache_ide0_size dd 0 ; not use
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;cache_ide0_data_pointer dd 0
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;cache_ide0_system_data_size dd 0 ; not use
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;cache_ide0_appl_data_size dd 0 ; not use
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;cache_ide0_system_data dd 0
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;cache_ide0_appl_data dd 0
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;cache_ide0_system_sad_size dd 0
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;cache_ide0_appl_sad_size dd 0
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pusha
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mov eax,[pg_data.pages_free]
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; 1/32
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shr eax,5
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; round off up to 8 pages
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shr eax,3
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shl eax,3
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; translate pages in butes *4096
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shl eax,12
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; check a upper size of the cache, no more than 1 Mb on the physical device
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cmp eax,1024*1024
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jbe @f
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mov eax,1024*1024
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jmp .continue
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@@:
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; check a lower size of the cache, not less than 128 Kb on the physical device
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cmp eax,128*1024
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jae @f
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mov eax,128*1024
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@@:
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.continue:
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mov [cache_ide0_size],eax
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mov [cache_ide1_size],eax
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mov [cache_ide2_size],eax
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mov [cache_ide3_size],eax
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xor eax,eax
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mov [cache_ide0_search_start],eax
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mov [cache_ide0_appl_search_start],eax
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mov [cache_ide1_search_start],eax
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mov [cache_ide1_appl_search_start],eax
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mov [cache_ide2_search_start],eax
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mov [cache_ide2_appl_search_start],eax
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mov [cache_ide3_search_start],eax
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mov [cache_ide3_appl_search_start],eax
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mov [hdd_appl_data],1 ;al
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mov cl,[DRIVE_DATA+1]
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mov ch,cl
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and cl,11b
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cmp cl,0
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je .ide2
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call get_cache_ide3
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.ide2:
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mov cl,ch
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and cl,1100b
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cmp cl,0
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je .ide1
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call get_cache_ide2
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.ide1:
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mov cl,ch
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and cl,110000b
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cmp cl,0
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je .ide0
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call get_cache_ide1
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.ide0:
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mov cl,ch
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and cl,11000000b
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cmp cl,0
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je end_get_cache
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call get_cache_ide0
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jmp end_get_cache
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get_cache_ide0:
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push ecx
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stdcall kernel_alloc,[cache_ide0_size]
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mov [cache_ide0_pointer],eax
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pop ecx
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mov edx,eax
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mov eax,[cache_ide0_size]
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shr eax,3
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mov [cache_ide0_system_data_size],eax
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mov ebx,eax
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imul eax,7
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mov [cache_ide0_appl_data_size],eax
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add ebx,edx
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mov [cache_ide0_data_pointer],ebx
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cmp cl,10000000b
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je .cd
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push ecx
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mov eax,[cache_ide0_system_data_size]
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call calculate_for_hd
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add eax,[cache_ide0_pointer]
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mov [cache_ide0_system_data],eax
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mov [cache_ide0_system_sad_size],ecx
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push edi
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mov edi,[cache_ide0_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide0_appl_data_size]
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call calculate_for_hd
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add eax,[cache_ide0_data_pointer]
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mov [cache_ide0_appl_data],eax
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mov [cache_ide0_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide0_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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.cd:
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push ecx
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mov eax,[cache_ide0_system_data_size]
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call calculate_for_cd
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add eax,[cache_ide0_pointer]
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mov [cache_ide0_system_data],eax
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mov [cache_ide0_system_sad_size],ecx
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push edi
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mov edi,[cache_ide0_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide0_appl_data_size]
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call calculate_for_cd
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add eax,[cache_ide0_data_pointer]
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mov [cache_ide0_appl_data],eax
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mov [cache_ide0_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide0_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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get_cache_ide1:
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push ecx
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stdcall kernel_alloc,[cache_ide1_size]
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mov [cache_ide1_pointer],eax
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pop ecx
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mov edx,eax
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mov eax,[cache_ide1_size]
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shr eax,3
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mov [cache_ide1_system_data_size],eax
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mov ebx,eax
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imul eax,7
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mov [cache_ide1_appl_data_size],eax
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add ebx,edx
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mov [cache_ide1_data_pointer],ebx
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cmp cl,100000b
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je .cd
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push ecx
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mov eax,[cache_ide1_system_data_size]
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call calculate_for_hd
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add eax,[cache_ide1_pointer]
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mov [cache_ide1_system_data],eax
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mov [cache_ide1_system_sad_size],ecx
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push edi
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mov edi,[cache_ide1_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide1_appl_data_size]
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call calculate_for_hd
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add eax,[cache_ide1_data_pointer]
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mov [cache_ide1_appl_data],eax
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mov [cache_ide1_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide1_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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.cd:
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push ecx
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mov eax,[cache_ide1_system_data_size]
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call calculate_for_cd
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add eax,[cache_ide1_pointer]
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mov [cache_ide1_system_data],eax
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mov [cache_ide1_system_sad_size],ecx
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push edi
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mov edi,[cache_ide1_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide1_appl_data_size]
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call calculate_for_cd
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add eax,[cache_ide1_data_pointer]
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mov [cache_ide1_appl_data],eax
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mov [cache_ide1_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide1_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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get_cache_ide2:
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push ecx
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stdcall kernel_alloc,[cache_ide2_size]
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mov [cache_ide2_pointer],eax
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pop ecx
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mov edx,eax
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mov eax,[cache_ide2_size]
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shr eax,3
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mov [cache_ide2_system_data_size],eax
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mov ebx,eax
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imul eax,7
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mov [cache_ide2_appl_data_size],eax
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add ebx,edx
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mov [cache_ide2_data_pointer],ebx
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cmp cl,1000b
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je .cd
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push ecx
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mov eax,[cache_ide2_system_data_size]
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call calculate_for_hd
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add eax,[cache_ide2_pointer]
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mov [cache_ide2_system_data],eax
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mov [cache_ide2_system_sad_size],ecx
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push edi
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mov edi,[cache_ide2_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide2_appl_data_size]
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call calculate_for_hd
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add eax,[cache_ide2_data_pointer]
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mov [cache_ide2_appl_data],eax
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mov [cache_ide2_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide2_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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.cd:
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push ecx
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mov eax,[cache_ide2_system_data_size]
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call calculate_for_cd
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add eax,[cache_ide2_pointer]
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mov [cache_ide2_system_data],eax
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mov [cache_ide2_system_sad_size],ecx
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push edi
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mov edi,[cache_ide2_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide2_appl_data_size]
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call calculate_for_cd
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add eax,[cache_ide2_data_pointer]
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mov [cache_ide2_appl_data],eax
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mov [cache_ide2_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide2_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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get_cache_ide3:
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push ecx
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stdcall kernel_alloc,[cache_ide3_size]
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mov [cache_ide3_pointer],eax
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pop ecx
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mov edx,eax
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mov eax,[cache_ide3_size]
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shr eax,3
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mov [cache_ide3_system_data_size],eax
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mov ebx,eax
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imul eax,7
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mov [cache_ide3_appl_data_size],eax
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add ebx,edx
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mov [cache_ide3_data_pointer],ebx
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cmp cl,10b
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je .cd
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push ecx
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mov eax,[cache_ide3_system_data_size]
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call calculate_for_hd
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add eax,[cache_ide3_pointer]
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mov [cache_ide3_system_data],eax
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mov [cache_ide3_system_sad_size],ecx
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push edi
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mov edi,[cache_ide3_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide3_appl_data_size]
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call calculate_for_hd
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add eax,[cache_ide3_data_pointer]
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mov [cache_ide3_appl_data],eax
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mov [cache_ide3_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide3_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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.cd:
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push ecx
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mov eax,[cache_ide3_system_data_size]
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call calculate_for_cd
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add eax,[cache_ide3_pointer]
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mov [cache_ide3_system_data],eax
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mov [cache_ide3_system_sad_size],ecx
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push edi
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mov edi,[cache_ide3_pointer]
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call clear_ide_cache
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pop edi
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mov eax,[cache_ide3_appl_data_size]
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call calculate_for_cd
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add eax,[cache_ide3_data_pointer]
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mov [cache_ide3_appl_data],eax
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mov [cache_ide3_appl_sad_size],ecx
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push edi
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mov edi,[cache_ide3_data_pointer]
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call clear_ide_cache
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pop edi
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pop ecx
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ret
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calculate_for_hd:
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push eax
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mov ebx,eax
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shr eax,9
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shl eax,3
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sub ebx,eax
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shr ebx,9
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mov ecx,ebx
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shl ebx,9
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pop eax
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sub eax,ebx
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ret
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calculate_for_cd:
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push eax
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mov ebx,eax
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shr eax,11
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shl eax,3
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sub ebx,eax
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shr ebx,11
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mov ecx,ebx
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shl ebx,11
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pop eax
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sub eax,ebx
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ret
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clear_ide_cache:
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push eax
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shl ecx,1
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xor eax,eax
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cld
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rep stosd
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pop eax
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ret
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end_get_cache:
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; mov [cache_ide0_pointer],HD_CACHE
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; mov [cache_ide0_system_data],HD_CACHE+65536
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; mov [cache_ide0_system_sad_size],1919
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popa |