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Rev 7165 Rev 7168
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;; Copyright (C) KolibriOS team 2004-2017. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2017. 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: 7165 $
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$Revision: 7168 $
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init_fpu:
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init_fpu:
12 
        clts
 12 
        clts
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        fninit
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        fninit
14 
 
 14 
 
15 
        bt      [cpu_caps+(CAPS_XSAVE/8)], CAPS_XSAVE mod 8
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        bt      [cpu_caps+(CAPS_XSAVE/32)], CAPS_XSAVE mod 32
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        vpxorq  zmm7, zmm7, zmm7
 134 
        vpxorq  zmm7, zmm7, zmm7
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135 
 
 135 
 
Line 136... Line 136...
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        ret
 136 
        ret
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 137 
 
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; param
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; param
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;  eax= 512 bytes memory area
 139 
;  eax= 512 bytes memory area aligned on a 16-byte boundary
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 140 
 
141 
align 4
 141 
align 4
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        mov     ecx, [fpu_owner]
 153 
        mov     ecx, [fpu_owner]
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        mov     esi, [CURRENT_TASK]
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        mov     esi, [CURRENT_TASK]
155 
        cmp     ecx, esi
 155 
        cmp     ecx, esi
156 
        jne     .save
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        jne     .save
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 157 
 
158 
        call    save_context
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        call    save_fpu_context
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        jmp     .exit
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        jmp     .exit
160 
.save:
 160 
.save:
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        mov     [fpu_owner], esi
 161 
        mov     [fpu_owner], esi
162 
 
 162 
 
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        shl     ecx, 8
 163 
        shl     ecx, 8
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- 
 
 164 
        mov     eax, [ecx+SLOT_BASE+APPDATA.fpu_state]
164 
        mov     eax, [ecx+SLOT_BASE+APPDATA.fpu_state]
 165 
 
165 
 
 166 
        call    save_context
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        call    save_context
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167 
 
 168 
; first 512 bytes of XSAVE area have the same format as FXSAVE
168 
        shl     esi, 8
 169 
        shl     esi, 8
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        pop     edi
 177 
        pop     edi
177 
        pop     esi
 178 
        pop     esi
178 
        pop     ecx
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        pop     ecx
179 
        ret
 180 
        ret
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- 
 
 181 
 
- 
 
 182 
avx_save_size:
- 
 
 183 
        mov     eax, [xsave_area_size]
- 
 
 184 
        ret
- 
 
 185 
 
- 
 
 186 
; param
- 
 
 187 
;  eax= avx_save_size() bytes memory area aligned on a 64-byte boundary
- 
 
 188 
 
- 
 
 189 
avx_save:
- 
 
 190 
        push    ecx
- 
 
 191 
        push    esi
- 
 
 192 
        push    edi
- 
 
 193 
 
- 
 
 194 
        pushfd
- 
 
 195 
        cli
- 
 
 196 
 
- 
 
 197 
        clts
- 
 
 198 
        mov     edi, eax
- 
 
 199 
 
- 
 
 200 
        mov     ecx, [fpu_owner]
- 
 
 201 
        mov     esi, [CURRENT_TASK]
- 
 
 202 
        cmp     ecx, esi
- 
 
 203 
        jne     .save
- 
 
 204 
 
- 
 
 205 
        call    save_context
- 
 
 206 
        jmp     .exit
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.save:
- 
 
 208 
        mov     [fpu_owner], esi
- 
 
 209 
 
- 
 
 210 
        shl     ecx, 8
- 
 
 211 
        mov     eax, [ecx+SLOT_BASE+APPDATA.fpu_state]
- 
 
 212 
 
- 
 
 213 
        call    save_context
- 
 
 214 
 
- 
 
 215 
        shl     esi, 8
- 
 
 216 
        mov     esi, [esi+SLOT_BASE+APPDATA.fpu_state]
- 
 
 217 
        mov     ecx, [xsave_area_size]
- 
 
 218 
        add     ecx, 3
- 
 
 219 
        shr     ecx, 2
- 
 
 220 
        rep movsd
- 
 
 221 
        fninit
- 
 
 222 
.exit:
- 
 
 223 
        popfd
- 
 
 224 
        pop     edi
- 
 
 225 
        pop     esi
- 
 
 226 
        pop     ecx
- 
 
 227 
        ret
180 
 
 228 
 
181 
align 4
 229 
align 4
182 
save_context:
 230 
save_context:
183 
        bt      [cpu_caps+(CAPS_OSXSAVE/8)], CAPS_OSXSAVE mod 8
 231 
        bt      [cpu_caps+(CAPS_OSXSAVE/32)], CAPS_OSXSAVE mod 32
184 
        jnc     .no_xsave
 232 
        jnc     save_fpu_context
185 
        xsave   [eax]
 233 
        xsave   [eax]
186 
        ret
 234 
        ret
187 
.no_xsave:
 235 
save_fpu_context:
188 
        bt      [cpu_caps], CAPS_SSE
 236 
        bt      [cpu_caps], CAPS_SSE
189 
        jnc     .no_SSE
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190 
 
 237 
        jnc     .no_SSE
191 
        fxsave  [eax]
 238 
        fxsave  [eax]
192 
        ret
 239 
        ret
193 
.no_SSE:
 240 
.no_SSE:
194 
        fnsave  [eax]
 241 
        fnsave  [eax]
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- 
 
 242 
        ret
195 
        ret
 243 
 
196 
 
 244 
 
197 
align 4
 245 
align 4
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fpu_restore:
 246 
fpu_restore:
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        mov     eax, [CURRENT_TASK]
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        mov     eax, [CURRENT_TASK]
209 
        cmp     ecx, eax
 257 
        cmp     ecx, eax
210 
        jne     .copy
 258 
        jne     .copy
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211 
 
 259 
 
- 
 
 260 
        clts
- 
 
 261 
        bt      [cpu_caps], CAPS_SSE
- 
 
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        jnc     .no_SSE
- 
 
 263 
 
- 
 
 264 
        fxrstor [esi]
- 
 
 265 
        popfd
- 
 
 266 
        pop     esi
- 
 
 267 
        pop     ecx
- 
 
 268 
        ret
- 
 
 269 
.no_SSE:
- 
 
 270 
        fnclex                  ;fix possible problems
- 
 
 271 
        frstor  [esi]
- 
 
 272 
        popfd
- 
 
 273 
        pop     esi
- 
 
 274 
        pop     ecx
- 
 
 275 
        ret
- 
 
 276 
.copy:
- 
 
 277 
        shl     eax, 8
- 
 
 278 
        mov     edi, [eax+SLOT_BASE+APPDATA.fpu_state]
- 
 
 279 
        mov     ecx, 512/4
- 
 
 280 
        cld
- 
 
 281 
        rep movsd
- 
 
 282 
        popfd
- 
 
 283 
        pop     esi
- 
 
 284 
        pop     ecx
- 
 
 285 
        ret
- 
 
 286 
 
- 
 
 287 
avx_restore:
- 
 
 288 
        push    ecx
- 
 
 289 
        push    esi
- 
 
 290 
 
- 
 
 291 
        mov     esi, eax
- 
 
 292 
 
- 
 
 293 
        pushfd
- 
 
 294 
        cli
- 
 
 295 
 
- 
 
 296 
        mov     ecx, [fpu_owner]
- 
 
 297 
        mov     eax, [CURRENT_TASK]
- 
 
 298 
        cmp     ecx, eax
- 
 
 299 
        jne     .copy
- 
 
 300 
 
212 
        clts
 301 
        clts
213 
        bt      [cpu_caps+(CAPS_OSXSAVE/8)], CAPS_OSXSAVE mod 8
 302 
        bt      [cpu_caps+(CAPS_OSXSAVE/32)], CAPS_OSXSAVE mod 32
214 
        jnc     .no_xsave
 303 
        jnc     .no_xsave
215 
        xrstor  [esi]
 304 
        xrstor  [esi]
216 
        popfd
 305 
        popfd
217 
        pop     esi
 306 
        pop     esi
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234 
        pop     ecx
 323 
        pop     ecx
235 
        ret
 324 
        ret
236 
.copy:
 325 
.copy:
237 
        shl     eax, 8
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        shl     eax, 8
238 
        mov     edi, [eax+SLOT_BASE+APPDATA.fpu_state]
 327 
        mov     edi, [eax+SLOT_BASE+APPDATA.fpu_state]
- 
 
 328 
        mov     ecx, [xsave_area_size]
- 
 
 329 
        add     ecx, 3
239 
        mov     ecx, 512/4
 330 
        shr     ecx, 2
240 
        cld
 331 
        cld
241 
        rep movsd
 332 
        rep movsd
242 
        popfd
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        popfd
243 
        pop     esi
 334 
        pop     esi
244 
        pop     ecx
 335 
        pop     ecx
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256 
        cmp     ebx, [CURRENT_TASK]
 347 
        cmp     ebx, [CURRENT_TASK]
257 
        je      .exit
 348 
        je      .exit
Line 258... Line 349...
258 
 
 349 
 
259 
        shl     ebx, 8
 350 
        shl     ebx, 8
- 
 
 351 
        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
- 
 
 352 
        bt      [cpu_caps+(CAPS_OSXSAVE/32)], CAPS_OSXSAVE mod 32
- 
 
 353 
        jnc     .no_xsave
- 
 
 354 
        xsave   [eax]
- 
 
 355 
        mov     ebx, [CURRENT_TASK]
- 
 
 356 
        mov     [fpu_owner], ebx
- 
 
 357 
        shl     ebx, 8
- 
 
 358 
        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
- 
 
 359 
        xrstor  [eax]
- 
 
 360 
.exit:
- 
 
 361 
        restore_ring3_context
- 
 
 362 
        iret
260 
        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
 363 
.no_xsave:
261 
        bt      [cpu_caps], CAPS_SSE
 364 
        bt      [cpu_caps], CAPS_SSE
Line 262... Line 365...
262 
        jnc     .no_SSE
 365 
        jnc     .no_SSE
263 
 
 366 
 
264 
        fxsave  [eax]
 367 
        fxsave  [eax]
265 
        mov     ebx, [CURRENT_TASK]
 368 
        mov     ebx, [CURRENT_TASK]
266 
        mov     [fpu_owner], ebx
 369 
        mov     [fpu_owner], ebx
267 
        shl     ebx, 8
 370 
        shl     ebx, 8
268 
        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
 - 
 
269 
        fxrstor [eax]
 371 
        mov     eax, [ebx+SLOT_BASE+APPDATA.fpu_state]
270 
.exit:
 372 
        fxrstor [eax]
Line 271... Line 373...
271 
        restore_ring3_context
 373 
        restore_ring3_context
272 
        iret
 374 
        iret