xref: /openbmc/linux/drivers/gpu/drm/radeon/rs400.c (revision 6091ede9)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  */
28 
29 #include <linux/seq_file.h>
30 #include <linux/slab.h>
31 
32 #include <drm/drm_device.h>
33 #include <drm/drm_file.h>
34 
35 #include "radeon.h"
36 #include "radeon_asic.h"
37 #include "rs400d.h"
38 
39 /* This files gather functions specifics to : rs400,rs480 */
40 static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
41 
rs400_gart_adjust_size(struct radeon_device * rdev)42 void rs400_gart_adjust_size(struct radeon_device *rdev)
43 {
44 	/* Check gart size */
45 	switch (rdev->mc.gtt_size/(1024*1024)) {
46 	case 32:
47 	case 64:
48 	case 128:
49 	case 256:
50 	case 512:
51 	case 1024:
52 	case 2048:
53 		break;
54 	default:
55 		DRM_ERROR("Unable to use IGP GART size %uM\n",
56 			  (unsigned)(rdev->mc.gtt_size >> 20));
57 		DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
58 		DRM_ERROR("Forcing to 32M GART size\n");
59 		rdev->mc.gtt_size = 32 * 1024 * 1024;
60 		return;
61 	}
62 }
63 
rs400_gart_tlb_flush(struct radeon_device * rdev)64 void rs400_gart_tlb_flush(struct radeon_device *rdev)
65 {
66 	uint32_t tmp;
67 	unsigned int timeout = rdev->usec_timeout;
68 
69 	WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
70 	do {
71 		tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
72 		if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
73 			break;
74 		udelay(1);
75 		timeout--;
76 	} while (timeout > 0);
77 	WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
78 }
79 
rs400_gart_init(struct radeon_device * rdev)80 int rs400_gart_init(struct radeon_device *rdev)
81 {
82 	int r;
83 
84 	if (rdev->gart.ptr) {
85 		WARN(1, "RS400 GART already initialized\n");
86 		return 0;
87 	}
88 	/* Check gart size */
89 	switch(rdev->mc.gtt_size / (1024 * 1024)) {
90 	case 32:
91 	case 64:
92 	case 128:
93 	case 256:
94 	case 512:
95 	case 1024:
96 	case 2048:
97 		break;
98 	default:
99 		return -EINVAL;
100 	}
101 	/* Initialize common gart structure */
102 	r = radeon_gart_init(rdev);
103 	if (r)
104 		return r;
105 	rs400_debugfs_pcie_gart_info_init(rdev);
106 	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
107 	return radeon_gart_table_ram_alloc(rdev);
108 }
109 
rs400_gart_enable(struct radeon_device * rdev)110 int rs400_gart_enable(struct radeon_device *rdev)
111 {
112 	uint32_t size_reg;
113 	uint32_t tmp;
114 
115 	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
116 	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
117 	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
118 	/* Check gart size */
119 	switch(rdev->mc.gtt_size / (1024 * 1024)) {
120 	case 32:
121 		size_reg = RS480_VA_SIZE_32MB;
122 		break;
123 	case 64:
124 		size_reg = RS480_VA_SIZE_64MB;
125 		break;
126 	case 128:
127 		size_reg = RS480_VA_SIZE_128MB;
128 		break;
129 	case 256:
130 		size_reg = RS480_VA_SIZE_256MB;
131 		break;
132 	case 512:
133 		size_reg = RS480_VA_SIZE_512MB;
134 		break;
135 	case 1024:
136 		size_reg = RS480_VA_SIZE_1GB;
137 		break;
138 	case 2048:
139 		size_reg = RS480_VA_SIZE_2GB;
140 		break;
141 	default:
142 		return -EINVAL;
143 	}
144 	/* It should be fine to program it to max value */
145 	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
146 		WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
147 		WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
148 	} else {
149 		WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
150 		WREG32(RS480_AGP_BASE_2, 0);
151 	}
152 	tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
153 	tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
154 	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
155 		WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
156 		tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
157 		WREG32(RADEON_BUS_CNTL, tmp);
158 	} else {
159 		WREG32(RADEON_MC_AGP_LOCATION, tmp);
160 		tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
161 		WREG32(RADEON_BUS_CNTL, tmp);
162 	}
163 	/* Table should be in 32bits address space so ignore bits above. */
164 	tmp = (u32)rdev->gart.table_addr & 0xfffff000;
165 	tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
166 
167 	WREG32_MC(RS480_GART_BASE, tmp);
168 	/* TODO: more tweaking here */
169 	WREG32_MC(RS480_GART_FEATURE_ID,
170 		  (RS480_TLB_ENABLE |
171 		   RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
172 	/* Disable snooping */
173 	WREG32_MC(RS480_AGP_MODE_CNTL,
174 		  (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
175 	/* Disable AGP mode */
176 	/* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
177 	 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
178 	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
179 		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
180 		tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
181 		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
182 	} else {
183 		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
184 		tmp |= RS480_GART_INDEX_REG_EN;
185 		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
186 	}
187 	/* Enable gart */
188 	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
189 	rs400_gart_tlb_flush(rdev);
190 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
191 		 (unsigned)(rdev->mc.gtt_size >> 20),
192 		 (unsigned long long)rdev->gart.table_addr);
193 	rdev->gart.ready = true;
194 	return 0;
195 }
196 
rs400_gart_disable(struct radeon_device * rdev)197 void rs400_gart_disable(struct radeon_device *rdev)
198 {
199 	uint32_t tmp;
200 
201 	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
202 	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
203 	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
204 	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
205 }
206 
rs400_gart_fini(struct radeon_device * rdev)207 void rs400_gart_fini(struct radeon_device *rdev)
208 {
209 	radeon_gart_fini(rdev);
210 	rs400_gart_disable(rdev);
211 	radeon_gart_table_ram_free(rdev);
212 }
213 
214 #define RS400_PTE_UNSNOOPED (1 << 0)
215 #define RS400_PTE_WRITEABLE (1 << 2)
216 #define RS400_PTE_READABLE  (1 << 3)
217 
rs400_gart_get_page_entry(uint64_t addr,uint32_t flags)218 uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags)
219 {
220 	uint32_t entry;
221 
222 	entry = (lower_32_bits(addr) & PAGE_MASK) |
223 		((upper_32_bits(addr) & 0xff) << 4);
224 	if (flags & RADEON_GART_PAGE_READ)
225 		entry |= RS400_PTE_READABLE;
226 	if (flags & RADEON_GART_PAGE_WRITE)
227 		entry |= RS400_PTE_WRITEABLE;
228 	if (!(flags & RADEON_GART_PAGE_SNOOP))
229 		entry |= RS400_PTE_UNSNOOPED;
230 	return entry;
231 }
232 
rs400_gart_set_page(struct radeon_device * rdev,unsigned i,uint64_t entry)233 void rs400_gart_set_page(struct radeon_device *rdev, unsigned i,
234 			 uint64_t entry)
235 {
236 	u32 *gtt = rdev->gart.ptr;
237 	gtt[i] = cpu_to_le32(lower_32_bits(entry));
238 }
239 
rs400_mc_wait_for_idle(struct radeon_device * rdev)240 int rs400_mc_wait_for_idle(struct radeon_device *rdev)
241 {
242 	unsigned i;
243 	uint32_t tmp;
244 
245 	for (i = 0; i < rdev->usec_timeout; i++) {
246 		/* read MC_STATUS */
247 		tmp = RREG32(RADEON_MC_STATUS);
248 		if (tmp & RADEON_MC_IDLE) {
249 			return 0;
250 		}
251 		udelay(1);
252 	}
253 	return -1;
254 }
255 
rs400_gpu_init(struct radeon_device * rdev)256 static void rs400_gpu_init(struct radeon_device *rdev)
257 {
258 	/* FIXME: is this correct ? */
259 	r420_pipes_init(rdev);
260 	if (rs400_mc_wait_for_idle(rdev)) {
261 		pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n",
262 			RREG32(RADEON_MC_STATUS));
263 	}
264 }
265 
rs400_mc_init(struct radeon_device * rdev)266 static void rs400_mc_init(struct radeon_device *rdev)
267 {
268 	u64 base;
269 
270 	rs400_gart_adjust_size(rdev);
271 	rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
272 	/* DDR for all card after R300 & IGP */
273 	rdev->mc.vram_is_ddr = true;
274 	rdev->mc.vram_width = 128;
275 	r100_vram_init_sizes(rdev);
276 	base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
277 	radeon_vram_location(rdev, &rdev->mc, base);
278 	rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
279 	radeon_gtt_location(rdev, &rdev->mc);
280 	radeon_update_bandwidth_info(rdev);
281 }
282 
rs400_mc_rreg(struct radeon_device * rdev,uint32_t reg)283 uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
284 {
285 	unsigned long flags;
286 	uint32_t r;
287 
288 	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
289 	WREG32(RS480_NB_MC_INDEX, reg & 0xff);
290 	r = RREG32(RS480_NB_MC_DATA);
291 	WREG32(RS480_NB_MC_INDEX, 0xff);
292 	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
293 	return r;
294 }
295 
rs400_mc_wreg(struct radeon_device * rdev,uint32_t reg,uint32_t v)296 void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
297 {
298 	unsigned long flags;
299 
300 	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
301 	WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
302 	WREG32(RS480_NB_MC_DATA, (v));
303 	WREG32(RS480_NB_MC_INDEX, 0xff);
304 	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
305 }
306 
307 #if defined(CONFIG_DEBUG_FS)
rs400_debugfs_gart_info_show(struct seq_file * m,void * unused)308 static int rs400_debugfs_gart_info_show(struct seq_file *m, void *unused)
309 {
310 	struct radeon_device *rdev = m->private;
311 	uint32_t tmp;
312 
313 	tmp = RREG32(RADEON_HOST_PATH_CNTL);
314 	seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
315 	tmp = RREG32(RADEON_BUS_CNTL);
316 	seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
317 	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
318 	seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
319 	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
320 		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
321 		seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
322 		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
323 		seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
324 		tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
325 		seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
326 		tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
327 		seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
328 		tmp = RREG32(RS690_HDP_FB_LOCATION);
329 		seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
330 	} else {
331 		tmp = RREG32(RADEON_AGP_BASE);
332 		seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
333 		tmp = RREG32(RS480_AGP_BASE_2);
334 		seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
335 		tmp = RREG32(RADEON_MC_AGP_LOCATION);
336 		seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
337 	}
338 	tmp = RREG32_MC(RS480_GART_BASE);
339 	seq_printf(m, "GART_BASE 0x%08x\n", tmp);
340 	tmp = RREG32_MC(RS480_GART_FEATURE_ID);
341 	seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
342 	tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
343 	seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
344 	tmp = RREG32_MC(RS480_MC_MISC_CNTL);
345 	seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
346 	tmp = RREG32_MC(0x5F);
347 	seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
348 	tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
349 	seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
350 	tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
351 	seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
352 	tmp = RREG32_MC(0x3B);
353 	seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
354 	tmp = RREG32_MC(0x3C);
355 	seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
356 	tmp = RREG32_MC(0x30);
357 	seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
358 	tmp = RREG32_MC(0x31);
359 	seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
360 	tmp = RREG32_MC(0x32);
361 	seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
362 	tmp = RREG32_MC(0x33);
363 	seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
364 	tmp = RREG32_MC(0x34);
365 	seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
366 	tmp = RREG32_MC(0x35);
367 	seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
368 	tmp = RREG32_MC(0x36);
369 	seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
370 	tmp = RREG32_MC(0x37);
371 	seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
372 	return 0;
373 }
374 
375 DEFINE_SHOW_ATTRIBUTE(rs400_debugfs_gart_info);
376 #endif
377 
rs400_debugfs_pcie_gart_info_init(struct radeon_device * rdev)378 static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
379 {
380 #if defined(CONFIG_DEBUG_FS)
381 	struct dentry *root = rdev->ddev->primary->debugfs_root;
382 
383 	debugfs_create_file("rs400_gart_info", 0444, root, rdev,
384 			    &rs400_debugfs_gart_info_fops);
385 #endif
386 }
387 
rs400_mc_program(struct radeon_device * rdev)388 static void rs400_mc_program(struct radeon_device *rdev)
389 {
390 	struct r100_mc_save save;
391 
392 	/* Stops all mc clients */
393 	r100_mc_stop(rdev, &save);
394 
395 	/* Wait for mc idle */
396 	if (rs400_mc_wait_for_idle(rdev))
397 		dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
398 	WREG32(R_000148_MC_FB_LOCATION,
399 		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
400 		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
401 
402 	r100_mc_resume(rdev, &save);
403 }
404 
rs400_startup(struct radeon_device * rdev)405 static int rs400_startup(struct radeon_device *rdev)
406 {
407 	int r;
408 
409 	r100_set_common_regs(rdev);
410 
411 	rs400_mc_program(rdev);
412 	/* Resume clock */
413 	r300_clock_startup(rdev);
414 	/* Initialize GPU configuration (# pipes, ...) */
415 	rs400_gpu_init(rdev);
416 	r100_enable_bm(rdev);
417 	/* Initialize GART (initialize after TTM so we can allocate
418 	 * memory through TTM but finalize after TTM) */
419 	r = rs400_gart_enable(rdev);
420 	if (r)
421 		return r;
422 
423 	/* allocate wb buffer */
424 	r = radeon_wb_init(rdev);
425 	if (r)
426 		return r;
427 
428 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
429 	if (r) {
430 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
431 		return r;
432 	}
433 
434 	/* Enable IRQ */
435 	if (!rdev->irq.installed) {
436 		r = radeon_irq_kms_init(rdev);
437 		if (r)
438 			return r;
439 	}
440 
441 	r100_irq_set(rdev);
442 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
443 	/* 1M ring buffer */
444 	r = r100_cp_init(rdev, 1024 * 1024);
445 	if (r) {
446 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
447 		return r;
448 	}
449 
450 	r = radeon_ib_pool_init(rdev);
451 	if (r) {
452 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
453 		return r;
454 	}
455 
456 	return 0;
457 }
458 
rs400_resume(struct radeon_device * rdev)459 int rs400_resume(struct radeon_device *rdev)
460 {
461 	int r;
462 
463 	/* Make sur GART are not working */
464 	rs400_gart_disable(rdev);
465 	/* Resume clock before doing reset */
466 	r300_clock_startup(rdev);
467 	/* setup MC before calling post tables */
468 	rs400_mc_program(rdev);
469 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
470 	if (radeon_asic_reset(rdev)) {
471 		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
472 			RREG32(R_000E40_RBBM_STATUS),
473 			RREG32(R_0007C0_CP_STAT));
474 	}
475 	/* post */
476 	radeon_combios_asic_init(rdev->ddev);
477 	/* Resume clock after posting */
478 	r300_clock_startup(rdev);
479 	/* Initialize surface registers */
480 	radeon_surface_init(rdev);
481 
482 	rdev->accel_working = true;
483 	r = rs400_startup(rdev);
484 	if (r) {
485 		rdev->accel_working = false;
486 	}
487 	return r;
488 }
489 
rs400_suspend(struct radeon_device * rdev)490 int rs400_suspend(struct radeon_device *rdev)
491 {
492 	radeon_pm_suspend(rdev);
493 	r100_cp_disable(rdev);
494 	radeon_wb_disable(rdev);
495 	r100_irq_disable(rdev);
496 	rs400_gart_disable(rdev);
497 	return 0;
498 }
499 
rs400_fini(struct radeon_device * rdev)500 void rs400_fini(struct radeon_device *rdev)
501 {
502 	radeon_pm_fini(rdev);
503 	r100_cp_fini(rdev);
504 	radeon_wb_fini(rdev);
505 	radeon_ib_pool_fini(rdev);
506 	radeon_gem_fini(rdev);
507 	rs400_gart_fini(rdev);
508 	radeon_irq_kms_fini(rdev);
509 	radeon_fence_driver_fini(rdev);
510 	radeon_bo_fini(rdev);
511 	radeon_atombios_fini(rdev);
512 	kfree(rdev->bios);
513 	rdev->bios = NULL;
514 }
515 
rs400_init(struct radeon_device * rdev)516 int rs400_init(struct radeon_device *rdev)
517 {
518 	int r;
519 
520 	/* Disable VGA */
521 	r100_vga_render_disable(rdev);
522 	/* Initialize scratch registers */
523 	radeon_scratch_init(rdev);
524 	/* Initialize surface registers */
525 	radeon_surface_init(rdev);
526 	/* TODO: disable VGA need to use VGA request */
527 	/* restore some register to sane defaults */
528 	r100_restore_sanity(rdev);
529 	/* BIOS*/
530 	if (!radeon_get_bios(rdev)) {
531 		if (ASIC_IS_AVIVO(rdev))
532 			return -EINVAL;
533 	}
534 	if (rdev->is_atom_bios) {
535 		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
536 		return -EINVAL;
537 	} else {
538 		r = radeon_combios_init(rdev);
539 		if (r)
540 			return r;
541 	}
542 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
543 	if (radeon_asic_reset(rdev)) {
544 		dev_warn(rdev->dev,
545 			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
546 			RREG32(R_000E40_RBBM_STATUS),
547 			RREG32(R_0007C0_CP_STAT));
548 	}
549 	/* check if cards are posted or not */
550 	if (radeon_boot_test_post_card(rdev) == false)
551 		return -EINVAL;
552 
553 	/* Initialize clocks */
554 	radeon_get_clock_info(rdev->ddev);
555 	/* initialize memory controller */
556 	rs400_mc_init(rdev);
557 	/* Fence driver */
558 	radeon_fence_driver_init(rdev);
559 	/* Memory manager */
560 	r = radeon_bo_init(rdev);
561 	if (r)
562 		return r;
563 	r = rs400_gart_init(rdev);
564 	if (r)
565 		return r;
566 	r300_set_reg_safe(rdev);
567 
568 	/* Initialize power management */
569 	radeon_pm_init(rdev);
570 
571 	rdev->accel_working = true;
572 	r = rs400_startup(rdev);
573 	if (r) {
574 		/* Somethings want wront with the accel init stop accel */
575 		dev_err(rdev->dev, "Disabling GPU acceleration\n");
576 		r100_cp_fini(rdev);
577 		radeon_wb_fini(rdev);
578 		radeon_ib_pool_fini(rdev);
579 		rs400_gart_fini(rdev);
580 		radeon_irq_kms_fini(rdev);
581 		rdev->accel_working = false;
582 	}
583 	return 0;
584 }
585