| /kernel/trunk/core/memory.inc |
|---|
| 143,6 → 143,45 |
| ret |
| endp |
| proc map_io_mem stdcall, base:dword, size:dword, flags:dword |
| push ebx |
| push edi |
| mov eax, [size] |
| add eax, 4095 |
| and eax, -4096 |
| mov [size], eax |
| stdcall alloc_kernel_space, eax |
| test eax, eax |
| jz .fail |
| push eax |
| mov edi, 0x1000 |
| mov ebx, eax |
| mov ecx,[size] |
| mov edx, [base] |
| shr eax, 12 |
| shr ecx, 12 |
| and edx, -4096 |
| or edx, [flags] |
| @@: |
| mov [page_tabs+eax*4], edx |
| invlpg [ebx] |
| inc eax |
| add ebx, edi |
| add edx, edi |
| loop @B |
| pop eax |
| mov edx, [base] |
| and edx, 4095 |
| add eax, edx |
| .fail: |
| pop edi |
| pop ebx |
| ret |
| endp |
| ; param |
| ; eax= page base + page flags |
| ; ebx= liear address |
| 150,7 → 189,7 |
| align 4 |
| commit_pages: |
| push edi |
| test ecx, ecx |
| jz .fail |
| 171,6 → 210,7 |
| jnz @B |
| mov [pg_data.pg_mutex],ecx |
| .fail: |
| pop edi |
| ret |