Subversion Repositories HelenOS-historic

Rev

Rev 1725 | Rev 1732 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1725 Rev 1728
Line 188... Line 188...
188 
	copy_end:
 188 
	copy_end:
189
189
190 
	DEBUG_segments
 190 
	DEBUG_segments
191
191
192 
	# initially fill segment registers
 192 
	# initially fill segment registers
193 
 
 193
194 
	li r31, 16
 - 
 
195 
	mtctr r31
 - 
 
196 
	li r31, 0
 194 
	li r31, 0
- 
 
 195
- 
 
 196 
	li r29, 8
- 
 
 197 
	mtctr r29
197 
	li r30, 0x2000
 198 
	li r30, 0
198 
 
 199 
 
199 
	seg_fill:
 200 
	seg_fill_uspace:
200
201
201 
		mtsrin r30, r31
 202 
		mtsrin r30, r31
202 
		addi r30, r30, 0x111
 203 
		addi r30, r30, 1
203 
		addis r31, r31, 0x1000    # move to next SR
 204 
		addis r31, r31, 0x1000    # move to next SR
204
205
205 
		bdnz seg_fill
 206 
		bdnz seg_fill_uspace
- 
 
 207
- 
 
 208 
	li r29, 8
- 
 
 209 
	mtctr r29
- 
 
 210 
	li r30, 0x4000
- 
 
 211
- 
 
 212 
	seg_fill_kernel:
- 
 
 213
- 
 
 214 
		mtsrin r30, r31
- 
 
 215 
		addi r30, r30, 1
- 
 
 216 
		addis r31, r31, 0x1000    # move to next SR
- 
 
 217
- 
 
 218 
		bdnz seg_fill_kernel
206
219
207 
	# invalidate block address translation registers
 220 
	# invalidate block address translation registers
208
221
209 
	DEBUG_bat
 222 
	DEBUG_bat
210
223
Line 239... Line 252...
239 
	DEBUG_pht
 252 
	DEBUG_pht
240
253
241 
	lis r31, 0x07ff
 254 
	lis r31, 0x07ff
242 
	ori r31, r31, 0x0000
 255 
	ori r31, r31, 0x0000
243
256
- 
 
 257 
	li r30, 0x4000
- 
 
 258 
	li r29, 0
- 
 
 259
- 
 
 260 
	pht_clear:
- 
 
 261
- 
 
 262 
		stw r29, 0(r31)
- 
 
 263
- 
 
 264 
		addi r31, r31, 4
- 
 
 265 
		subi r30, r30, 4
- 
 
 266
- 
 
 267 
		cmpwi r30, 0
- 
 
 268 
		beq clear_end
- 
 
 269
- 
 
 270 
		bdnz pht_clear
- 
 
 271 
 
- 
 
 272 
		DEBUG_end_pht_clear
- 
 
 273
- 
 
 274 
	clear_end:
- 
 
 275
- 
 
 276 
	lis r31, 0x07ff
- 
 
 277 
	ori r31, r31, 0x0000
- 
 
 278
244 
	mtsdr1 r31
 279 
	mtsdr1 r31
245
280
246 
	# create identity mapping
 281 
	# create identity mapping
247
282
- 
 
 283 
#ifdef CONFIG_BAT
- 
 
 284
248 
	DEBUG_mapping
 285 
	DEBUG_mapping
249
286
250 
	# FIXME: map exactly the size of RAM
 287 
	# FIXME: map exactly the size of RAM
251
288
252 
	lis r31, 0x8000
 289 
	lis r31, 0x8000
Line 258... Line 295...
258 
	mtspr ibat0u, r31
 295 
	mtspr ibat0u, r31
259 
	mtspr ibat0l, r30
 296 
	mtspr ibat0l, r30
260
297
261 
	mtspr dbat0u, r31
 298 
	mtspr dbat0u, r31
262 
	mtspr dbat0l, r30
 299 
	mtspr dbat0l, r30
- 
 
 300 
 
- 
 
 301 
#endif
263
302
264 
	DEBUG_tlb
 303 
	DEBUG_tlb
265
304
266 
	tlbia
 305 
	tlbia
267 
	tlbsync
 306 
	tlbsync
268
307
269 
	DEBUG_prepare
 308 
	DEBUG_prepare
270
309
271 
	# start the kernel
 310 
	# start the kernel
272 
	#
 311 
	#
- 
 
 312 
	# pc = KERNEL_START_ADDR
273 
	# r3 = bootinfo (pa)
 313 
	# r3 = bootinfo (pa)
- 
 
 314 
	# sprg0 = KA2PA(KERNEL_START_ADDR)
- 
 
 315 
	# sprg3 = physical memory size
- 
 
 316 
	# sp = 0 (pa)
274
317
275 
	lis r31, KERNEL_START_ADDR@ha
 318 
	lis r31, KERNEL_START_ADDR@ha
276 
	addi r31, r31, KERNEL_START_ADDR@l
 319 
	addi r31, r31, KERNEL_START_ADDR@l
277
320
278 
	mtspr srr0, r31
 321 
	mtspr srr0, r31
279
322
- 
 
 323 
	subis r31, r31, 0x8000
- 
 
 324 
	mtsprg0 r31
- 
 
 325
- 
 
 326 
	lwz r31, 0(r3)
- 
 
 327 
	mtsprg3 r31
- 
 
 328
- 
 
 329 
	li sp, 0
- 
 
 330
280 
	mfmsr r31
 331 
	mfmsr r31
281 
	ori r31, r31, (msr_ir | msr_dr)@l
 332 
	ori r31, r31, (msr_ir | msr_dr)@l
282 
	mtspr srr1, r31
 333 
	mtspr srr1, r31
283
334
284 
	sync
 335 
	sync