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v6.13.7
  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/debugfs.h>
 30#include <linux/seq_file.h>
 31#include <linux/slab.h>
 32
 
 33#include <drm/drm_device.h>
 34#include <drm/drm_file.h>
 35
 36#include "radeon.h"
 37#include "radeon_asic.h"
 38#include "rs400d.h"
 39
 40/* This files gather functions specifics to : rs400,rs480 */
 41static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
 42
 43void rs400_gart_adjust_size(struct radeon_device *rdev)
 44{
 45	/* Check gart size */
 46	switch (rdev->mc.gtt_size/(1024*1024)) {
 47	case 32:
 48	case 64:
 49	case 128:
 50	case 256:
 51	case 512:
 52	case 1024:
 53	case 2048:
 54		break;
 55	default:
 56		DRM_ERROR("Unable to use IGP GART size %uM\n",
 57			  (unsigned)(rdev->mc.gtt_size >> 20));
 58		DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
 59		DRM_ERROR("Forcing to 32M GART size\n");
 60		rdev->mc.gtt_size = 32 * 1024 * 1024;
 61		return;
 62	}
 63}
 64
 65void rs400_gart_tlb_flush(struct radeon_device *rdev)
 66{
 67	uint32_t tmp;
 68	unsigned int timeout = rdev->usec_timeout;
 69
 70	WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
 71	do {
 72		tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
 73		if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
 74			break;
 75		udelay(1);
 76		timeout--;
 77	} while (timeout > 0);
 78	WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
 79}
 80
 81int rs400_gart_init(struct radeon_device *rdev)
 82{
 83	int r;
 84
 85	if (rdev->gart.ptr) {
 86		WARN(1, "RS400 GART already initialized\n");
 87		return 0;
 88	}
 89	/* Check gart size */
 90	switch (rdev->mc.gtt_size / (1024 * 1024)) {
 91	case 32:
 92	case 64:
 93	case 128:
 94	case 256:
 95	case 512:
 96	case 1024:
 97	case 2048:
 98		break;
 99	default:
100		return -EINVAL;
101	}
102	/* Initialize common gart structure */
103	r = radeon_gart_init(rdev);
104	if (r)
105		return r;
106	rs400_debugfs_pcie_gart_info_init(rdev);
 
107	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
108	return radeon_gart_table_ram_alloc(rdev);
109}
110
111int rs400_gart_enable(struct radeon_device *rdev)
112{
113	uint32_t size_reg;
114	uint32_t tmp;
115
116	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
117	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
118	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
119	/* Check gart size */
120	switch (rdev->mc.gtt_size / (1024 * 1024)) {
121	case 32:
122		size_reg = RS480_VA_SIZE_32MB;
123		break;
124	case 64:
125		size_reg = RS480_VA_SIZE_64MB;
126		break;
127	case 128:
128		size_reg = RS480_VA_SIZE_128MB;
129		break;
130	case 256:
131		size_reg = RS480_VA_SIZE_256MB;
132		break;
133	case 512:
134		size_reg = RS480_VA_SIZE_512MB;
135		break;
136	case 1024:
137		size_reg = RS480_VA_SIZE_1GB;
138		break;
139	case 2048:
140		size_reg = RS480_VA_SIZE_2GB;
141		break;
142	default:
143		return -EINVAL;
144	}
145	/* It should be fine to program it to max value */
146	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
147		WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
148		WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
149	} else {
150		WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
151		WREG32(RS480_AGP_BASE_2, 0);
152	}
153	tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
154	tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
155	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
156		WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
157		tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
158		WREG32(RADEON_BUS_CNTL, tmp);
159	} else {
160		WREG32(RADEON_MC_AGP_LOCATION, tmp);
161		tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
162		WREG32(RADEON_BUS_CNTL, tmp);
163	}
164	/* Table should be in 32bits address space so ignore bits above. */
165	tmp = (u32)rdev->gart.table_addr & 0xfffff000;
166	tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
167
168	WREG32_MC(RS480_GART_BASE, tmp);
169	/* TODO: more tweaking here */
170	WREG32_MC(RS480_GART_FEATURE_ID,
171		  (RS480_TLB_ENABLE |
172		   RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
173	/* Disable snooping */
174	WREG32_MC(RS480_AGP_MODE_CNTL,
175		  (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
176	/* Disable AGP mode */
177	/* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
178	 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
179	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
180		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
181		tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
182		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
183	} else {
184		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
185		tmp |= RS480_GART_INDEX_REG_EN;
186		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
187	}
188	/* Enable gart */
189	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
190	rs400_gart_tlb_flush(rdev);
191	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
192		 (unsigned)(rdev->mc.gtt_size >> 20),
193		 (unsigned long long)rdev->gart.table_addr);
194	rdev->gart.ready = true;
195	return 0;
196}
197
198void rs400_gart_disable(struct radeon_device *rdev)
199{
200	uint32_t tmp;
201
202	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
203	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
204	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
205	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
206}
207
208void rs400_gart_fini(struct radeon_device *rdev)
209{
210	radeon_gart_fini(rdev);
211	rs400_gart_disable(rdev);
212	radeon_gart_table_ram_free(rdev);
213}
214
215#define RS400_PTE_UNSNOOPED (1 << 0)
216#define RS400_PTE_WRITEABLE (1 << 2)
217#define RS400_PTE_READABLE  (1 << 3)
218
219uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags)
220{
221	uint32_t entry;
222
223	entry = (lower_32_bits(addr) & PAGE_MASK) |
224		((upper_32_bits(addr) & 0xff) << 4);
225	if (flags & RADEON_GART_PAGE_READ)
226		entry |= RS400_PTE_READABLE;
227	if (flags & RADEON_GART_PAGE_WRITE)
228		entry |= RS400_PTE_WRITEABLE;
229	if (!(flags & RADEON_GART_PAGE_SNOOP))
230		entry |= RS400_PTE_UNSNOOPED;
231	return entry;
232}
233
234void rs400_gart_set_page(struct radeon_device *rdev, unsigned i,
235			 uint64_t entry)
236{
237	u32 *gtt = rdev->gart.ptr;
238	gtt[i] = cpu_to_le32(lower_32_bits(entry));
239}
240
241int rs400_mc_wait_for_idle(struct radeon_device *rdev)
242{
243	unsigned i;
244	uint32_t tmp;
245
246	for (i = 0; i < rdev->usec_timeout; i++) {
247		/* read MC_STATUS */
248		tmp = RREG32(RADEON_MC_STATUS);
249		if (tmp & RADEON_MC_IDLE) {
250			return 0;
251		}
252		udelay(1);
253	}
254	return -1;
255}
256
257static void rs400_gpu_init(struct radeon_device *rdev)
258{
259	/* Earlier code was calling r420_pipes_init and then
260	 * rs400_mc_wait_for_idle(rdev). The problem is that
261	 * at least on my Mobility Radeon Xpress 200M RC410 card
262	 * that ends up in this code path ends up num_gb_pipes == 3
263	 * while the card seems to have only one pipe. With the
264	 * r420 pipe initialization method.
265	 *
266	 * Problems shown up as HyperZ glitches, see:
267	 * https://bugs.freedesktop.org/show_bug.cgi?id=110897
268	 *
269	 * Delegating initialization to r300 code seems to work
270	 * and results in proper pipe numbers. The rs400 cards
271	 * are said to be not r400, but r300 kind of cards.
272	 */
273	r300_gpu_init(rdev);
274
275	if (rs400_mc_wait_for_idle(rdev)) {
276		pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n",
277			RREG32(RADEON_MC_STATUS));
278	}
279}
280
281static void rs400_mc_init(struct radeon_device *rdev)
282{
283	u64 base;
284
285	rs400_gart_adjust_size(rdev);
286	rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
287	/* DDR for all card after R300 & IGP */
288	rdev->mc.vram_is_ddr = true;
289	rdev->mc.vram_width = 128;
290	r100_vram_init_sizes(rdev);
291	base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
292	radeon_vram_location(rdev, &rdev->mc, base);
293	rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
294	radeon_gtt_location(rdev, &rdev->mc);
295	radeon_update_bandwidth_info(rdev);
296}
297
298uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
299{
300	unsigned long flags;
301	uint32_t r;
302
303	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
304	WREG32(RS480_NB_MC_INDEX, reg & 0xff);
305	r = RREG32(RS480_NB_MC_DATA);
306	WREG32(RS480_NB_MC_INDEX, 0xff);
307	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
308	return r;
309}
310
311void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
312{
313	unsigned long flags;
314
315	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
316	WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
317	WREG32(RS480_NB_MC_DATA, (v));
318	WREG32(RS480_NB_MC_INDEX, 0xff);
319	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
320}
321
322#if defined(CONFIG_DEBUG_FS)
323static int rs400_debugfs_gart_info_show(struct seq_file *m, void *unused)
324{
325	struct radeon_device *rdev = m->private;
 
 
326	uint32_t tmp;
327
328	tmp = RREG32(RADEON_HOST_PATH_CNTL);
329	seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
330	tmp = RREG32(RADEON_BUS_CNTL);
331	seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
332	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
333	seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
334	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
335		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
336		seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
337		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
338		seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
339		tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
340		seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
341		tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
342		seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
343		tmp = RREG32(RS690_HDP_FB_LOCATION);
344		seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
345	} else {
346		tmp = RREG32(RADEON_AGP_BASE);
347		seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
348		tmp = RREG32(RS480_AGP_BASE_2);
349		seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
350		tmp = RREG32(RADEON_MC_AGP_LOCATION);
351		seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
352	}
353	tmp = RREG32_MC(RS480_GART_BASE);
354	seq_printf(m, "GART_BASE 0x%08x\n", tmp);
355	tmp = RREG32_MC(RS480_GART_FEATURE_ID);
356	seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
357	tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
358	seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
359	tmp = RREG32_MC(RS480_MC_MISC_CNTL);
360	seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
361	tmp = RREG32_MC(0x5F);
362	seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
363	tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
364	seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
365	tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
366	seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
367	tmp = RREG32_MC(0x3B);
368	seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
369	tmp = RREG32_MC(0x3C);
370	seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
371	tmp = RREG32_MC(0x30);
372	seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
373	tmp = RREG32_MC(0x31);
374	seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
375	tmp = RREG32_MC(0x32);
376	seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
377	tmp = RREG32_MC(0x33);
378	seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
379	tmp = RREG32_MC(0x34);
380	seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
381	tmp = RREG32_MC(0x35);
382	seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
383	tmp = RREG32_MC(0x36);
384	seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
385	tmp = RREG32_MC(0x37);
386	seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
387	return 0;
388}
389
390DEFINE_SHOW_ATTRIBUTE(rs400_debugfs_gart_info);
 
 
391#endif
392
393static void rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
394{
395#if defined(CONFIG_DEBUG_FS)
396	struct dentry *root = rdev_to_drm(rdev)->primary->debugfs_root;
397
398	debugfs_create_file("rs400_gart_info", 0444, root, rdev,
399			    &rs400_debugfs_gart_info_fops);
400#endif
401}
402
403static void rs400_mc_program(struct radeon_device *rdev)
404{
405	struct r100_mc_save save;
406
407	/* Stops all mc clients */
408	r100_mc_stop(rdev, &save);
409
410	/* Wait for mc idle */
411	if (rs400_mc_wait_for_idle(rdev))
412		dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
413	WREG32(R_000148_MC_FB_LOCATION,
414		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
415		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
416
417	r100_mc_resume(rdev, &save);
418}
419
420static int rs400_startup(struct radeon_device *rdev)
421{
422	int r;
423
424	r100_set_common_regs(rdev);
425
426	rs400_mc_program(rdev);
427	/* Resume clock */
428	r300_clock_startup(rdev);
429	/* Initialize GPU configuration (# pipes, ...) */
430	rs400_gpu_init(rdev);
431	r100_enable_bm(rdev);
432	/* Initialize GART (initialize after TTM so we can allocate
433	 * memory through TTM but finalize after TTM) */
434	r = rs400_gart_enable(rdev);
435	if (r)
436		return r;
437
438	/* allocate wb buffer */
439	r = radeon_wb_init(rdev);
440	if (r)
441		return r;
442
443	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
444	if (r) {
445		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
446		return r;
447	}
448
449	/* Enable IRQ */
450	if (!rdev->irq.installed) {
451		r = radeon_irq_kms_init(rdev);
452		if (r)
453			return r;
454	}
455
456	r100_irq_set(rdev);
457	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
458	/* 1M ring buffer */
459	r = r100_cp_init(rdev, 1024 * 1024);
460	if (r) {
461		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
462		return r;
463	}
464
465	r = radeon_ib_pool_init(rdev);
466	if (r) {
467		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
468		return r;
469	}
470
471	return 0;
472}
473
474int rs400_resume(struct radeon_device *rdev)
475{
476	int r;
477
478	/* Make sur GART are not working */
479	rs400_gart_disable(rdev);
480	/* Resume clock before doing reset */
481	r300_clock_startup(rdev);
482	/* setup MC before calling post tables */
483	rs400_mc_program(rdev);
484	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
485	if (radeon_asic_reset(rdev)) {
486		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
487			RREG32(R_000E40_RBBM_STATUS),
488			RREG32(R_0007C0_CP_STAT));
489	}
490	/* post */
491	radeon_combios_asic_init(rdev_to_drm(rdev));
492	/* Resume clock after posting */
493	r300_clock_startup(rdev);
494	/* Initialize surface registers */
495	radeon_surface_init(rdev);
496
497	rdev->accel_working = true;
498	r = rs400_startup(rdev);
499	if (r) {
500		rdev->accel_working = false;
501	}
502	return r;
503}
504
505int rs400_suspend(struct radeon_device *rdev)
506{
507	radeon_pm_suspend(rdev);
508	r100_cp_disable(rdev);
509	radeon_wb_disable(rdev);
510	r100_irq_disable(rdev);
511	rs400_gart_disable(rdev);
512	return 0;
513}
514
515void rs400_fini(struct radeon_device *rdev)
516{
517	radeon_pm_fini(rdev);
518	r100_cp_fini(rdev);
519	radeon_wb_fini(rdev);
520	radeon_ib_pool_fini(rdev);
521	radeon_gem_fini(rdev);
522	rs400_gart_fini(rdev);
523	radeon_irq_kms_fini(rdev);
524	radeon_fence_driver_fini(rdev);
525	radeon_bo_fini(rdev);
526	radeon_atombios_fini(rdev);
527	kfree(rdev->bios);
528	rdev->bios = NULL;
529}
530
531int rs400_init(struct radeon_device *rdev)
532{
533	int r;
534
535	/* Disable VGA */
536	r100_vga_render_disable(rdev);
537	/* Initialize scratch registers */
538	radeon_scratch_init(rdev);
539	/* Initialize surface registers */
540	radeon_surface_init(rdev);
541	/* TODO: disable VGA need to use VGA request */
542	/* restore some register to sane defaults */
543	r100_restore_sanity(rdev);
544	/* BIOS*/
545	if (!radeon_get_bios(rdev)) {
546		if (ASIC_IS_AVIVO(rdev))
547			return -EINVAL;
548	}
549	if (rdev->is_atom_bios) {
550		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
551		return -EINVAL;
552	} else {
553		r = radeon_combios_init(rdev);
554		if (r)
555			return r;
556	}
557	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
558	if (radeon_asic_reset(rdev)) {
559		dev_warn(rdev->dev,
560			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
561			RREG32(R_000E40_RBBM_STATUS),
562			RREG32(R_0007C0_CP_STAT));
563	}
564	/* check if cards are posted or not */
565	if (radeon_boot_test_post_card(rdev) == false)
566		return -EINVAL;
567
568	/* Initialize clocks */
569	radeon_get_clock_info(rdev_to_drm(rdev));
570	/* initialize memory controller */
571	rs400_mc_init(rdev);
572	/* Fence driver */
573	radeon_fence_driver_init(rdev);
 
 
574	/* Memory manager */
575	r = radeon_bo_init(rdev);
576	if (r)
577		return r;
578	r = rs400_gart_init(rdev);
579	if (r)
580		return r;
581	r300_set_reg_safe(rdev);
582
583	/* Initialize power management */
584	radeon_pm_init(rdev);
585
586	rdev->accel_working = true;
587	r = rs400_startup(rdev);
588	if (r) {
589		/* Somethings want wront with the accel init stop accel */
590		dev_err(rdev->dev, "Disabling GPU acceleration\n");
591		r100_cp_fini(rdev);
592		radeon_wb_fini(rdev);
593		radeon_ib_pool_fini(rdev);
594		rs400_gart_fini(rdev);
595		radeon_irq_kms_fini(rdev);
596		rdev->accel_working = false;
597	}
598	return 0;
599}
v5.4
  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_debugfs.h>
 33#include <drm/drm_device.h>
 34#include <drm/drm_file.h>
 35
 36#include "radeon.h"
 37#include "radeon_asic.h"
 38#include "rs400d.h"
 39
 40/* This files gather functions specifics to : rs400,rs480 */
 41static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
 42
 43void rs400_gart_adjust_size(struct radeon_device *rdev)
 44{
 45	/* Check gart size */
 46	switch (rdev->mc.gtt_size/(1024*1024)) {
 47	case 32:
 48	case 64:
 49	case 128:
 50	case 256:
 51	case 512:
 52	case 1024:
 53	case 2048:
 54		break;
 55	default:
 56		DRM_ERROR("Unable to use IGP GART size %uM\n",
 57			  (unsigned)(rdev->mc.gtt_size >> 20));
 58		DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n");
 59		DRM_ERROR("Forcing to 32M GART size\n");
 60		rdev->mc.gtt_size = 32 * 1024 * 1024;
 61		return;
 62	}
 63}
 64
 65void rs400_gart_tlb_flush(struct radeon_device *rdev)
 66{
 67	uint32_t tmp;
 68	unsigned int timeout = rdev->usec_timeout;
 69
 70	WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE);
 71	do {
 72		tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
 73		if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0)
 74			break;
 75		udelay(1);
 76		timeout--;
 77	} while (timeout > 0);
 78	WREG32_MC(RS480_GART_CACHE_CNTRL, 0);
 79}
 80
 81int rs400_gart_init(struct radeon_device *rdev)
 82{
 83	int r;
 84
 85	if (rdev->gart.ptr) {
 86		WARN(1, "RS400 GART already initialized\n");
 87		return 0;
 88	}
 89	/* Check gart size */
 90	switch(rdev->mc.gtt_size / (1024 * 1024)) {
 91	case 32:
 92	case 64:
 93	case 128:
 94	case 256:
 95	case 512:
 96	case 1024:
 97	case 2048:
 98		break;
 99	default:
100		return -EINVAL;
101	}
102	/* Initialize common gart structure */
103	r = radeon_gart_init(rdev);
104	if (r)
105		return r;
106	if (rs400_debugfs_pcie_gart_info_init(rdev))
107		DRM_ERROR("Failed to register debugfs file for RS400 GART !\n");
108	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
109	return radeon_gart_table_ram_alloc(rdev);
110}
111
112int rs400_gart_enable(struct radeon_device *rdev)
113{
114	uint32_t size_reg;
115	uint32_t tmp;
116
117	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
118	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
119	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
120	/* Check gart size */
121	switch(rdev->mc.gtt_size / (1024 * 1024)) {
122	case 32:
123		size_reg = RS480_VA_SIZE_32MB;
124		break;
125	case 64:
126		size_reg = RS480_VA_SIZE_64MB;
127		break;
128	case 128:
129		size_reg = RS480_VA_SIZE_128MB;
130		break;
131	case 256:
132		size_reg = RS480_VA_SIZE_256MB;
133		break;
134	case 512:
135		size_reg = RS480_VA_SIZE_512MB;
136		break;
137	case 1024:
138		size_reg = RS480_VA_SIZE_1GB;
139		break;
140	case 2048:
141		size_reg = RS480_VA_SIZE_2GB;
142		break;
143	default:
144		return -EINVAL;
145	}
146	/* It should be fine to program it to max value */
147	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
148		WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF);
149		WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0);
150	} else {
151		WREG32(RADEON_AGP_BASE, 0xFFFFFFFF);
152		WREG32(RS480_AGP_BASE_2, 0);
153	}
154	tmp = REG_SET(RS690_MC_AGP_TOP, rdev->mc.gtt_end >> 16);
155	tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_start >> 16);
156	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
157		WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp);
158		tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
159		WREG32(RADEON_BUS_CNTL, tmp);
160	} else {
161		WREG32(RADEON_MC_AGP_LOCATION, tmp);
162		tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS;
163		WREG32(RADEON_BUS_CNTL, tmp);
164	}
165	/* Table should be in 32bits address space so ignore bits above. */
166	tmp = (u32)rdev->gart.table_addr & 0xfffff000;
167	tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4;
168
169	WREG32_MC(RS480_GART_BASE, tmp);
170	/* TODO: more tweaking here */
171	WREG32_MC(RS480_GART_FEATURE_ID,
172		  (RS480_TLB_ENABLE |
173		   RS480_GTW_LAC_EN | RS480_1LEVEL_GART));
174	/* Disable snooping */
175	WREG32_MC(RS480_AGP_MODE_CNTL,
176		  (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS);
177	/* Disable AGP mode */
178	/* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
179	 * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
180	if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
181		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
182		tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
183		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
184	} else {
185		tmp = RREG32_MC(RS480_MC_MISC_CNTL);
186		tmp |= RS480_GART_INDEX_REG_EN;
187		WREG32_MC(RS480_MC_MISC_CNTL, tmp);
188	}
189	/* Enable gart */
190	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
191	rs400_gart_tlb_flush(rdev);
192	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
193		 (unsigned)(rdev->mc.gtt_size >> 20),
194		 (unsigned long long)rdev->gart.table_addr);
195	rdev->gart.ready = true;
196	return 0;
197}
198
199void rs400_gart_disable(struct radeon_device *rdev)
200{
201	uint32_t tmp;
202
203	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
204	tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS;
205	WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp);
206	WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0);
207}
208
209void rs400_gart_fini(struct radeon_device *rdev)
210{
211	radeon_gart_fini(rdev);
212	rs400_gart_disable(rdev);
213	radeon_gart_table_ram_free(rdev);
214}
215
216#define RS400_PTE_UNSNOOPED (1 << 0)
217#define RS400_PTE_WRITEABLE (1 << 2)
218#define RS400_PTE_READABLE  (1 << 3)
219
220uint64_t rs400_gart_get_page_entry(uint64_t addr, uint32_t flags)
221{
222	uint32_t entry;
223
224	entry = (lower_32_bits(addr) & PAGE_MASK) |
225		((upper_32_bits(addr) & 0xff) << 4);
226	if (flags & RADEON_GART_PAGE_READ)
227		entry |= RS400_PTE_READABLE;
228	if (flags & RADEON_GART_PAGE_WRITE)
229		entry |= RS400_PTE_WRITEABLE;
230	if (!(flags & RADEON_GART_PAGE_SNOOP))
231		entry |= RS400_PTE_UNSNOOPED;
232	return entry;
233}
234
235void rs400_gart_set_page(struct radeon_device *rdev, unsigned i,
236			 uint64_t entry)
237{
238	u32 *gtt = rdev->gart.ptr;
239	gtt[i] = cpu_to_le32(lower_32_bits(entry));
240}
241
242int rs400_mc_wait_for_idle(struct radeon_device *rdev)
243{
244	unsigned i;
245	uint32_t tmp;
246
247	for (i = 0; i < rdev->usec_timeout; i++) {
248		/* read MC_STATUS */
249		tmp = RREG32(RADEON_MC_STATUS);
250		if (tmp & RADEON_MC_IDLE) {
251			return 0;
252		}
253		udelay(1);
254	}
255	return -1;
256}
257
258static void rs400_gpu_init(struct radeon_device *rdev)
259{
260	/* FIXME: is this correct ? */
261	r420_pipes_init(rdev);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
262	if (rs400_mc_wait_for_idle(rdev)) {
263		pr_warn("rs400: Failed to wait MC idle while programming pipes. Bad things might happen. %08x\n",
264			RREG32(RADEON_MC_STATUS));
265	}
266}
267
268static void rs400_mc_init(struct radeon_device *rdev)
269{
270	u64 base;
271
272	rs400_gart_adjust_size(rdev);
273	rdev->mc.igp_sideport_enabled = radeon_combios_sideport_present(rdev);
274	/* DDR for all card after R300 & IGP */
275	rdev->mc.vram_is_ddr = true;
276	rdev->mc.vram_width = 128;
277	r100_vram_init_sizes(rdev);
278	base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
279	radeon_vram_location(rdev, &rdev->mc, base);
280	rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
281	radeon_gtt_location(rdev, &rdev->mc);
282	radeon_update_bandwidth_info(rdev);
283}
284
285uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg)
286{
287	unsigned long flags;
288	uint32_t r;
289
290	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
291	WREG32(RS480_NB_MC_INDEX, reg & 0xff);
292	r = RREG32(RS480_NB_MC_DATA);
293	WREG32(RS480_NB_MC_INDEX, 0xff);
294	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
295	return r;
296}
297
298void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
299{
300	unsigned long flags;
301
302	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
303	WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN);
304	WREG32(RS480_NB_MC_DATA, (v));
305	WREG32(RS480_NB_MC_INDEX, 0xff);
306	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
307}
308
309#if defined(CONFIG_DEBUG_FS)
310static int rs400_debugfs_gart_info(struct seq_file *m, void *data)
311{
312	struct drm_info_node *node = (struct drm_info_node *) m->private;
313	struct drm_device *dev = node->minor->dev;
314	struct radeon_device *rdev = dev->dev_private;
315	uint32_t tmp;
316
317	tmp = RREG32(RADEON_HOST_PATH_CNTL);
318	seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp);
319	tmp = RREG32(RADEON_BUS_CNTL);
320	seq_printf(m, "BUS_CNTL 0x%08x\n", tmp);
321	tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH);
322	seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp);
323	if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) {
324		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE);
325		seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp);
326		tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2);
327		seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp);
328		tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION);
329		seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp);
330		tmp = RREG32_MC(RS690_MCCFG_FB_LOCATION);
331		seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp);
332		tmp = RREG32(RS690_HDP_FB_LOCATION);
333		seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp);
334	} else {
335		tmp = RREG32(RADEON_AGP_BASE);
336		seq_printf(m, "AGP_BASE 0x%08x\n", tmp);
337		tmp = RREG32(RS480_AGP_BASE_2);
338		seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp);
339		tmp = RREG32(RADEON_MC_AGP_LOCATION);
340		seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp);
341	}
342	tmp = RREG32_MC(RS480_GART_BASE);
343	seq_printf(m, "GART_BASE 0x%08x\n", tmp);
344	tmp = RREG32_MC(RS480_GART_FEATURE_ID);
345	seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp);
346	tmp = RREG32_MC(RS480_AGP_MODE_CNTL);
347	seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp);
348	tmp = RREG32_MC(RS480_MC_MISC_CNTL);
349	seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp);
350	tmp = RREG32_MC(0x5F);
351	seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp);
352	tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE);
353	seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp);
354	tmp = RREG32_MC(RS480_GART_CACHE_CNTRL);
355	seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp);
356	tmp = RREG32_MC(0x3B);
357	seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp);
358	tmp = RREG32_MC(0x3C);
359	seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp);
360	tmp = RREG32_MC(0x30);
361	seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp);
362	tmp = RREG32_MC(0x31);
363	seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp);
364	tmp = RREG32_MC(0x32);
365	seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp);
366	tmp = RREG32_MC(0x33);
367	seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp);
368	tmp = RREG32_MC(0x34);
369	seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp);
370	tmp = RREG32_MC(0x35);
371	seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp);
372	tmp = RREG32_MC(0x36);
373	seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp);
374	tmp = RREG32_MC(0x37);
375	seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp);
376	return 0;
377}
378
379static struct drm_info_list rs400_gart_info_list[] = {
380	{"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL},
381};
382#endif
383
384static int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
385{
386#if defined(CONFIG_DEBUG_FS)
387	return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1);
388#else
389	return 0;
 
390#endif
391}
392
393static void rs400_mc_program(struct radeon_device *rdev)
394{
395	struct r100_mc_save save;
396
397	/* Stops all mc clients */
398	r100_mc_stop(rdev, &save);
399
400	/* Wait for mc idle */
401	if (rs400_mc_wait_for_idle(rdev))
402		dev_warn(rdev->dev, "rs400: Wait MC idle timeout before updating MC.\n");
403	WREG32(R_000148_MC_FB_LOCATION,
404		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
405		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
406
407	r100_mc_resume(rdev, &save);
408}
409
410static int rs400_startup(struct radeon_device *rdev)
411{
412	int r;
413
414	r100_set_common_regs(rdev);
415
416	rs400_mc_program(rdev);
417	/* Resume clock */
418	r300_clock_startup(rdev);
419	/* Initialize GPU configuration (# pipes, ...) */
420	rs400_gpu_init(rdev);
421	r100_enable_bm(rdev);
422	/* Initialize GART (initialize after TTM so we can allocate
423	 * memory through TTM but finalize after TTM) */
424	r = rs400_gart_enable(rdev);
425	if (r)
426		return r;
427
428	/* allocate wb buffer */
429	r = radeon_wb_init(rdev);
430	if (r)
431		return r;
432
433	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
434	if (r) {
435		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
436		return r;
437	}
438
439	/* Enable IRQ */
440	if (!rdev->irq.installed) {
441		r = radeon_irq_kms_init(rdev);
442		if (r)
443			return r;
444	}
445
446	r100_irq_set(rdev);
447	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
448	/* 1M ring buffer */
449	r = r100_cp_init(rdev, 1024 * 1024);
450	if (r) {
451		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
452		return r;
453	}
454
455	r = radeon_ib_pool_init(rdev);
456	if (r) {
457		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
458		return r;
459	}
460
461	return 0;
462}
463
464int rs400_resume(struct radeon_device *rdev)
465{
466	int r;
467
468	/* Make sur GART are not working */
469	rs400_gart_disable(rdev);
470	/* Resume clock before doing reset */
471	r300_clock_startup(rdev);
472	/* setup MC before calling post tables */
473	rs400_mc_program(rdev);
474	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
475	if (radeon_asic_reset(rdev)) {
476		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
477			RREG32(R_000E40_RBBM_STATUS),
478			RREG32(R_0007C0_CP_STAT));
479	}
480	/* post */
481	radeon_combios_asic_init(rdev->ddev);
482	/* Resume clock after posting */
483	r300_clock_startup(rdev);
484	/* Initialize surface registers */
485	radeon_surface_init(rdev);
486
487	rdev->accel_working = true;
488	r = rs400_startup(rdev);
489	if (r) {
490		rdev->accel_working = false;
491	}
492	return r;
493}
494
495int rs400_suspend(struct radeon_device *rdev)
496{
497	radeon_pm_suspend(rdev);
498	r100_cp_disable(rdev);
499	radeon_wb_disable(rdev);
500	r100_irq_disable(rdev);
501	rs400_gart_disable(rdev);
502	return 0;
503}
504
505void rs400_fini(struct radeon_device *rdev)
506{
507	radeon_pm_fini(rdev);
508	r100_cp_fini(rdev);
509	radeon_wb_fini(rdev);
510	radeon_ib_pool_fini(rdev);
511	radeon_gem_fini(rdev);
512	rs400_gart_fini(rdev);
513	radeon_irq_kms_fini(rdev);
514	radeon_fence_driver_fini(rdev);
515	radeon_bo_fini(rdev);
516	radeon_atombios_fini(rdev);
517	kfree(rdev->bios);
518	rdev->bios = NULL;
519}
520
521int rs400_init(struct radeon_device *rdev)
522{
523	int r;
524
525	/* Disable VGA */
526	r100_vga_render_disable(rdev);
527	/* Initialize scratch registers */
528	radeon_scratch_init(rdev);
529	/* Initialize surface registers */
530	radeon_surface_init(rdev);
531	/* TODO: disable VGA need to use VGA request */
532	/* restore some register to sane defaults */
533	r100_restore_sanity(rdev);
534	/* BIOS*/
535	if (!radeon_get_bios(rdev)) {
536		if (ASIC_IS_AVIVO(rdev))
537			return -EINVAL;
538	}
539	if (rdev->is_atom_bios) {
540		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
541		return -EINVAL;
542	} else {
543		r = radeon_combios_init(rdev);
544		if (r)
545			return r;
546	}
547	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
548	if (radeon_asic_reset(rdev)) {
549		dev_warn(rdev->dev,
550			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
551			RREG32(R_000E40_RBBM_STATUS),
552			RREG32(R_0007C0_CP_STAT));
553	}
554	/* check if cards are posted or not */
555	if (radeon_boot_test_post_card(rdev) == false)
556		return -EINVAL;
557
558	/* Initialize clocks */
559	radeon_get_clock_info(rdev->ddev);
560	/* initialize memory controller */
561	rs400_mc_init(rdev);
562	/* Fence driver */
563	r = radeon_fence_driver_init(rdev);
564	if (r)
565		return r;
566	/* Memory manager */
567	r = radeon_bo_init(rdev);
568	if (r)
569		return r;
570	r = rs400_gart_init(rdev);
571	if (r)
572		return r;
573	r300_set_reg_safe(rdev);
574
575	/* Initialize power management */
576	radeon_pm_init(rdev);
577
578	rdev->accel_working = true;
579	r = rs400_startup(rdev);
580	if (r) {
581		/* Somethings want wront with the accel init stop accel */
582		dev_err(rdev->dev, "Disabling GPU acceleration\n");
583		r100_cp_fini(rdev);
584		radeon_wb_fini(rdev);
585		radeon_ib_pool_fini(rdev);
586		rs400_gart_fini(rdev);
587		radeon_irq_kms_fini(rdev);
588		rdev->accel_working = false;
589	}
590	return 0;
591}