Subversion Repositories Kolibri OS

Rev

Rev 6246 | Rev 6261 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 6246 Rev 6252
Line 201... Line 201...
201 
        call free_kernel_space
 201 
        call free_kernel_space
202 
        jmp     .ok
 202 
        jmp     .ok
Line 203... Line 203...
203 
 
 203 
 
204 
align 4
 204 
align 4
- 
 
 205 
set_framebuffer:
205 
set_framebuffer:
 206 
        push    esi
206 
        mov     edx, LFB_BASE shr 22
 207 
        push    edi
- 
 
 208 
        lea     esi, [ecx+FRB.pde]
- 
 
 209 
        mov     eax, sys_proc
- 
 
 210 
 
- 
 
 211 
        pushfd
207 
        mov     eax, [ecx+FRB.pde]
 212 
        cli
- 
 
 213 
        mov     [_display.current_lfb], ecx
- 
 
 214 
 
- 
 
 215 
.patch_pde:
208 
        mov     dword [master_tab+edx*4], eax
 216 
        lea     edi, [eax+PROC.pdt_0+4096-32]   ;last 8 pd entries up to 32Mb framebuffer
209 
        mov     eax, [ecx+FRB.pde+4]
 217 
        mov     ecx, 8
- 
 
 218 
        rep movsd                               ;patch pde
- 
 
 219 
        sub     esi, 32
- 
 
 220 
        mov     edi, [eax+PROC.list.next]       ;next process/address space
210 
        mov     dword [master_tab+edx*4+4], eax
 221 
        xchg    eax, edi
- 
 
 222 
        cmp     eax, edi
- 
 
 223 
        jne     .patch_pde
211 
        mov     eax, [ecx+FRB.pde+8]
 224 
 
- 
 
 225 
        bt      [cpu_caps], CAPS_PGE
- 
 
 226 
        jnc     .cr3_flush
212 
        mov     dword [master_tab+edx*4+8], eax
 227 
 
- 
 
 228 
        mov     eax, cr4
- 
 
 229 
        btr     eax, 7                          ;clear cr4.PGE
- 
 
 230 
        mov     cr4, eax                        ;flush TLB
213 
        mov     eax, [ecx+FRB.pde+12]
 231 
        bts     eax, 7
- 
 
 232 
        mov     cr4, eax                        ;flush TLB
- 
 
 233 
.exit:
- 
 
 234 
        popfd
- 
 
 235 
        pop     edi
214 
        mov     dword [master_tab+edx*4+12], eax
 236 
        pop     esi
Line -... Line 237...
- 
 
 237 
        ret
- 
 
 238 
 
- 
 
 239 
.cr3_flush:
- 
 
 240 
        mov     eax, cr3
- 
 
 241 
        mov     cr3, eax                        ;flush TLB