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/pci.h>
31  #include <linux/seq_file.h>
32  #include <linux/slab.h>
33  
34  #include <drm/drm.h>
35  #include <drm/drm_device.h>
36  #include <drm/drm_file.h>
37  #include <drm/radeon_drm.h>
38  
39  #include "r100_track.h"
40  #include "r300_reg_safe.h"
41  #include "r300d.h"
42  #include "radeon.h"
43  #include "radeon_asic.h"
44  #include "radeon_reg.h"
45  #include "rv350d.h"
46  
47  /* This files gather functions specifics to: r300,r350,rv350,rv370,rv380
48   *
49   * GPU Errata:
50   * - HOST_PATH_CNTL: r300 family seems to dislike write to HOST_PATH_CNTL
51   *   using MMIO to flush host path read cache, this lead to HARDLOCKUP.
52   *   However, scheduling such write to the ring seems harmless, i suspect
53   *   the CP read collide with the flush somehow, or maybe the MC, hard to
54   *   tell. (Jerome Glisse)
55   */
56  
57  /*
58   * Indirect registers accessor
59   */
rv370_pcie_rreg(struct radeon_device * rdev,uint32_t reg)60  uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
61  {
62  	unsigned long flags;
63  	uint32_t r;
64  
65  	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
66  	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
67  	r = RREG32(RADEON_PCIE_DATA);
68  	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
69  	return r;
70  }
71  
rv370_pcie_wreg(struct radeon_device * rdev,uint32_t reg,uint32_t v)72  void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
73  {
74  	unsigned long flags;
75  
76  	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
77  	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
78  	WREG32(RADEON_PCIE_DATA, (v));
79  	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
80  }
81  
82  /*
83   * rv370,rv380 PCIE GART
84   */
85  static void rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
86  
rv370_pcie_gart_tlb_flush(struct radeon_device * rdev)87  void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev)
88  {
89  	uint32_t tmp;
90  	int i;
91  
92  	/* Workaround HW bug do flush 2 times */
93  	for (i = 0; i < 2; i++) {
94  		tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
95  		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB);
96  		(void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
97  		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
98  	}
99  	mb();
100  }
101  
102  #define R300_PTE_UNSNOOPED (1 << 0)
103  #define R300_PTE_WRITEABLE (1 << 2)
104  #define R300_PTE_READABLE  (1 << 3)
105  
rv370_pcie_gart_get_page_entry(uint64_t addr,uint32_t flags)106  uint64_t rv370_pcie_gart_get_page_entry(uint64_t addr, uint32_t flags)
107  {
108  	addr = (lower_32_bits(addr) >> 8) |
109  		((upper_32_bits(addr) & 0xff) << 24);
110  	if (flags & RADEON_GART_PAGE_READ)
111  		addr |= R300_PTE_READABLE;
112  	if (flags & RADEON_GART_PAGE_WRITE)
113  		addr |= R300_PTE_WRITEABLE;
114  	if (!(flags & RADEON_GART_PAGE_SNOOP))
115  		addr |= R300_PTE_UNSNOOPED;
116  	return addr;
117  }
118  
rv370_pcie_gart_set_page(struct radeon_device * rdev,unsigned i,uint64_t entry)119  void rv370_pcie_gart_set_page(struct radeon_device *rdev, unsigned i,
120  			      uint64_t entry)
121  {
122  	void __iomem *ptr = rdev->gart.ptr;
123  
124  	/* on x86 we want this to be CPU endian, on powerpc
125  	 * on powerpc without HW swappers, it'll get swapped on way
126  	 * into VRAM - so no need for cpu_to_le32 on VRAM tables */
127  	writel(entry, ((void __iomem *)ptr) + (i * 4));
128  }
129  
rv370_pcie_gart_init(struct radeon_device * rdev)130  int rv370_pcie_gart_init(struct radeon_device *rdev)
131  {
132  	int r;
133  
134  	if (rdev->gart.robj) {
135  		WARN(1, "RV370 PCIE GART already initialized\n");
136  		return 0;
137  	}
138  	/* Initialize common gart structure */
139  	r = radeon_gart_init(rdev);
140  	if (r)
141  		return r;
142  	rv370_debugfs_pcie_gart_info_init(rdev);
143  
144  	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
145  	rdev->asic->gart.tlb_flush = &rv370_pcie_gart_tlb_flush;
146  	rdev->asic->gart.get_page_entry = &rv370_pcie_gart_get_page_entry;
147  	rdev->asic->gart.set_page = &rv370_pcie_gart_set_page;
148  	return radeon_gart_table_vram_alloc(rdev);
149  }
150  
rv370_pcie_gart_enable(struct radeon_device * rdev)151  int rv370_pcie_gart_enable(struct radeon_device *rdev)
152  {
153  	uint32_t table_addr;
154  	uint32_t tmp;
155  	int r;
156  
157  	if (rdev->gart.robj == NULL) {
158  		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
159  		return -EINVAL;
160  	}
161  	r = radeon_gart_table_vram_pin(rdev);
162  	if (r)
163  		return r;
164  	/* discard memory request outside of configured range */
165  	tmp = RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
166  	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
167  	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, rdev->mc.gtt_start);
168  	tmp = rdev->mc.gtt_end & ~RADEON_GPU_PAGE_MASK;
169  	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, tmp);
170  	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
171  	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
172  	table_addr = rdev->gart.table_addr;
173  	WREG32_PCIE(RADEON_PCIE_TX_GART_BASE, table_addr);
174  	/* FIXME: setup default page */
175  	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO, rdev->mc.vram_start);
176  	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_HI, 0);
177  	/* Clear error */
178  	WREG32_PCIE(RADEON_PCIE_TX_GART_ERROR, 0);
179  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
180  	tmp |= RADEON_PCIE_TX_GART_EN;
181  	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
182  	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
183  	rv370_pcie_gart_tlb_flush(rdev);
184  	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
185  		 (unsigned)(rdev->mc.gtt_size >> 20),
186  		 (unsigned long long)table_addr);
187  	rdev->gart.ready = true;
188  	return 0;
189  }
190  
rv370_pcie_gart_disable(struct radeon_device * rdev)191  void rv370_pcie_gart_disable(struct radeon_device *rdev)
192  {
193  	u32 tmp;
194  
195  	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, 0);
196  	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, 0);
197  	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
198  	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
199  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
200  	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
201  	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp & ~RADEON_PCIE_TX_GART_EN);
202  	radeon_gart_table_vram_unpin(rdev);
203  }
204  
rv370_pcie_gart_fini(struct radeon_device * rdev)205  void rv370_pcie_gart_fini(struct radeon_device *rdev)
206  {
207  	radeon_gart_fini(rdev);
208  	rv370_pcie_gart_disable(rdev);
209  	radeon_gart_table_vram_free(rdev);
210  }
211  
r300_fence_ring_emit(struct radeon_device * rdev,struct radeon_fence * fence)212  void r300_fence_ring_emit(struct radeon_device *rdev,
213  			  struct radeon_fence *fence)
214  {
215  	struct radeon_ring *ring = &rdev->ring[fence->ring];
216  
217  	/* Who ever call radeon_fence_emit should call ring_lock and ask
218  	 * for enough space (today caller are ib schedule and buffer move) */
219  	/* Write SC register so SC & US assert idle */
220  	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_TL, 0));
221  	radeon_ring_write(ring, 0);
222  	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_BR, 0));
223  	radeon_ring_write(ring, 0);
224  	/* Flush 3D cache */
225  	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
226  	radeon_ring_write(ring, R300_RB3D_DC_FLUSH);
227  	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
228  	radeon_ring_write(ring, R300_ZC_FLUSH);
229  	/* Wait until IDLE & CLEAN */
230  	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
231  	radeon_ring_write(ring, (RADEON_WAIT_3D_IDLECLEAN |
232  				 RADEON_WAIT_2D_IDLECLEAN |
233  				 RADEON_WAIT_DMA_GUI_IDLE));
234  	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
235  	radeon_ring_write(ring, rdev->config.r300.hdp_cntl |
236  				RADEON_HDP_READ_BUFFER_INVALIDATE);
237  	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
238  	radeon_ring_write(ring, rdev->config.r300.hdp_cntl);
239  	/* Emit fence sequence & fire IRQ */
240  	radeon_ring_write(ring, PACKET0(rdev->fence_drv[fence->ring].scratch_reg, 0));
241  	radeon_ring_write(ring, fence->seq);
242  	radeon_ring_write(ring, PACKET0(RADEON_GEN_INT_STATUS, 0));
243  	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
244  }
245  
r300_ring_start(struct radeon_device * rdev,struct radeon_ring * ring)246  void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
247  {
248  	unsigned gb_tile_config;
249  	int r;
250  
251  	/* Sub pixel 1/12 so we can have 4K rendering according to doc */
252  	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
253  	switch (rdev->num_gb_pipes) {
254  	case 2:
255  		gb_tile_config |= R300_PIPE_COUNT_R300;
256  		break;
257  	case 3:
258  		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
259  		break;
260  	case 4:
261  		gb_tile_config |= R300_PIPE_COUNT_R420;
262  		break;
263  	case 1:
264  	default:
265  		gb_tile_config |= R300_PIPE_COUNT_RV350;
266  		break;
267  	}
268  
269  	r = radeon_ring_lock(rdev, ring, 64);
270  	if (r) {
271  		return;
272  	}
273  	radeon_ring_write(ring, PACKET0(RADEON_ISYNC_CNTL, 0));
274  	radeon_ring_write(ring,
275  			  RADEON_ISYNC_ANY2D_IDLE3D |
276  			  RADEON_ISYNC_ANY3D_IDLE2D |
277  			  RADEON_ISYNC_WAIT_IDLEGUI |
278  			  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
279  	radeon_ring_write(ring, PACKET0(R300_GB_TILE_CONFIG, 0));
280  	radeon_ring_write(ring, gb_tile_config);
281  	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
282  	radeon_ring_write(ring,
283  			  RADEON_WAIT_2D_IDLECLEAN |
284  			  RADEON_WAIT_3D_IDLECLEAN);
285  	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
286  	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
287  	radeon_ring_write(ring, PACKET0(R300_GB_SELECT, 0));
288  	radeon_ring_write(ring, 0);
289  	radeon_ring_write(ring, PACKET0(R300_GB_ENABLE, 0));
290  	radeon_ring_write(ring, 0);
291  	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
292  	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
293  	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
294  	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
295  	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
296  	radeon_ring_write(ring,
297  			  RADEON_WAIT_2D_IDLECLEAN |
298  			  RADEON_WAIT_3D_IDLECLEAN);
299  	radeon_ring_write(ring, PACKET0(R300_GB_AA_CONFIG, 0));
300  	radeon_ring_write(ring, 0);
301  	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
302  	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
303  	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
304  	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
305  	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS0, 0));
306  	radeon_ring_write(ring,
307  			  ((6 << R300_MS_X0_SHIFT) |
308  			   (6 << R300_MS_Y0_SHIFT) |
309  			   (6 << R300_MS_X1_SHIFT) |
310  			   (6 << R300_MS_Y1_SHIFT) |
311  			   (6 << R300_MS_X2_SHIFT) |
312  			   (6 << R300_MS_Y2_SHIFT) |
313  			   (6 << R300_MSBD0_Y_SHIFT) |
314  			   (6 << R300_MSBD0_X_SHIFT)));
315  	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS1, 0));
316  	radeon_ring_write(ring,
317  			  ((6 << R300_MS_X3_SHIFT) |
318  			   (6 << R300_MS_Y3_SHIFT) |
319  			   (6 << R300_MS_X4_SHIFT) |
320  			   (6 << R300_MS_Y4_SHIFT) |
321  			   (6 << R300_MS_X5_SHIFT) |
322  			   (6 << R300_MS_Y5_SHIFT) |
323  			   (6 << R300_MSBD1_SHIFT)));
324  	radeon_ring_write(ring, PACKET0(R300_GA_ENHANCE, 0));
325  	radeon_ring_write(ring, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
326  	radeon_ring_write(ring, PACKET0(R300_GA_POLY_MODE, 0));
327  	radeon_ring_write(ring,
328  			  R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
329  	radeon_ring_write(ring, PACKET0(R300_GA_ROUND_MODE, 0));
330  	radeon_ring_write(ring,
331  			  R300_GEOMETRY_ROUND_NEAREST |
332  			  R300_COLOR_ROUND_NEAREST);
333  	radeon_ring_unlock_commit(rdev, ring, false);
334  }
335  
r300_errata(struct radeon_device * rdev)336  static void r300_errata(struct radeon_device *rdev)
337  {
338  	rdev->pll_errata = 0;
339  
340  	if (rdev->family == CHIP_R300 &&
341  	    (RREG32(RADEON_CONFIG_CNTL) & RADEON_CFG_ATI_REV_ID_MASK) == RADEON_CFG_ATI_REV_A11) {
342  		rdev->pll_errata |= CHIP_ERRATA_R300_CG;
343  	}
344  }
345  
r300_mc_wait_for_idle(struct radeon_device * rdev)346  int r300_mc_wait_for_idle(struct radeon_device *rdev)
347  {
348  	unsigned i;
349  	uint32_t tmp;
350  
351  	for (i = 0; i < rdev->usec_timeout; i++) {
352  		/* read MC_STATUS */
353  		tmp = RREG32(RADEON_MC_STATUS);
354  		if (tmp & R300_MC_IDLE) {
355  			return 0;
356  		}
357  		udelay(1);
358  	}
359  	return -1;
360  }
361  
r300_gpu_init(struct radeon_device * rdev)362  static void r300_gpu_init(struct radeon_device *rdev)
363  {
364  	uint32_t gb_tile_config, tmp;
365  
366  	if ((rdev->family == CHIP_R300 && rdev->pdev->device != 0x4144) ||
367  	    (rdev->family == CHIP_R350 && rdev->pdev->device != 0x4148)) {
368  		/* r300,r350 */
369  		rdev->num_gb_pipes = 2;
370  	} else {
371  		/* rv350,rv370,rv380,r300 AD, r350 AH */
372  		rdev->num_gb_pipes = 1;
373  	}
374  	rdev->num_z_pipes = 1;
375  	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
376  	switch (rdev->num_gb_pipes) {
377  	case 2:
378  		gb_tile_config |= R300_PIPE_COUNT_R300;
379  		break;
380  	case 3:
381  		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
382  		break;
383  	case 4:
384  		gb_tile_config |= R300_PIPE_COUNT_R420;
385  		break;
386  	default:
387  	case 1:
388  		gb_tile_config |= R300_PIPE_COUNT_RV350;
389  		break;
390  	}
391  	WREG32(R300_GB_TILE_CONFIG, gb_tile_config);
392  
393  	if (r100_gui_wait_for_idle(rdev)) {
394  		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
395  	}
396  
397  	tmp = RREG32(R300_DST_PIPE_CONFIG);
398  	WREG32(R300_DST_PIPE_CONFIG, tmp | R300_PIPE_AUTO_CONFIG);
399  
400  	WREG32(R300_RB2D_DSTCACHE_MODE,
401  	       R300_DC_AUTOFLUSH_ENABLE |
402  	       R300_DC_DC_DISABLE_IGNORE_PE);
403  
404  	if (r100_gui_wait_for_idle(rdev)) {
405  		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
406  	}
407  	if (r300_mc_wait_for_idle(rdev)) {
408  		pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
409  	}
410  	DRM_INFO("radeon: %d quad pipes, %d Z pipes initialized\n",
411  		 rdev->num_gb_pipes, rdev->num_z_pipes);
412  }
413  
r300_asic_reset(struct radeon_device * rdev,bool hard)414  int r300_asic_reset(struct radeon_device *rdev, bool hard)
415  {
416  	struct r100_mc_save save;
417  	u32 status, tmp;
418  	int ret = 0;
419  
420  	status = RREG32(R_000E40_RBBM_STATUS);
421  	if (!G_000E40_GUI_ACTIVE(status)) {
422  		return 0;
423  	}
424  	r100_mc_stop(rdev, &save);
425  	status = RREG32(R_000E40_RBBM_STATUS);
426  	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
427  	/* stop CP */
428  	WREG32(RADEON_CP_CSQ_CNTL, 0);
429  	tmp = RREG32(RADEON_CP_RB_CNTL);
430  	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
431  	WREG32(RADEON_CP_RB_RPTR_WR, 0);
432  	WREG32(RADEON_CP_RB_WPTR, 0);
433  	WREG32(RADEON_CP_RB_CNTL, tmp);
434  	/* save PCI state */
435  	pci_save_state(rdev->pdev);
436  	/* disable bus mastering */
437  	r100_bm_disable(rdev);
438  	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
439  					S_0000F0_SOFT_RESET_GA(1));
440  	RREG32(R_0000F0_RBBM_SOFT_RESET);
441  	mdelay(500);
442  	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
443  	mdelay(1);
444  	status = RREG32(R_000E40_RBBM_STATUS);
445  	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
446  	/* resetting the CP seems to be problematic sometimes it end up
447  	 * hard locking the computer, but it's necessary for successful
448  	 * reset more test & playing is needed on R3XX/R4XX to find a
449  	 * reliable (if any solution)
450  	 */
451  	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
452  	RREG32(R_0000F0_RBBM_SOFT_RESET);
453  	mdelay(500);
454  	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
455  	mdelay(1);
456  	status = RREG32(R_000E40_RBBM_STATUS);
457  	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
458  	/* restore PCI & busmastering */
459  	pci_restore_state(rdev->pdev);
460  	r100_enable_bm(rdev);
461  	/* Check if GPU is idle */
462  	if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
463  		dev_err(rdev->dev, "failed to reset GPU\n");
464  		ret = -1;
465  	} else
466  		dev_info(rdev->dev, "GPU reset succeed\n");
467  	r100_mc_resume(rdev, &save);
468  	return ret;
469  }
470  
471  /*
472   * r300,r350,rv350,rv380 VRAM info
473   */
r300_mc_init(struct radeon_device * rdev)474  void r300_mc_init(struct radeon_device *rdev)
475  {
476  	u64 base;
477  	u32 tmp;
478  
479  	/* DDR for all card after R300 & IGP */
480  	rdev->mc.vram_is_ddr = true;
481  	tmp = RREG32(RADEON_MEM_CNTL);
482  	tmp &= R300_MEM_NUM_CHANNELS_MASK;
483  	switch (tmp) {
484  	case 0: rdev->mc.vram_width = 64; break;
485  	case 1: rdev->mc.vram_width = 128; break;
486  	case 2: rdev->mc.vram_width = 256; break;
487  	default:  rdev->mc.vram_width = 128; break;
488  	}
489  	r100_vram_init_sizes(rdev);
490  	base = rdev->mc.aper_base;
491  	if (rdev->flags & RADEON_IS_IGP)
492  		base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
493  	radeon_vram_location(rdev, &rdev->mc, base);
494  	rdev->mc.gtt_base_align = 0;
495  	if (!(rdev->flags & RADEON_IS_AGP))
496  		radeon_gtt_location(rdev, &rdev->mc);
497  	radeon_update_bandwidth_info(rdev);
498  }
499  
rv370_set_pcie_lanes(struct radeon_device * rdev,int lanes)500  void rv370_set_pcie_lanes(struct radeon_device *rdev, int lanes)
501  {
502  	uint32_t link_width_cntl, mask;
503  
504  	if (rdev->flags & RADEON_IS_IGP)
505  		return;
506  
507  	if (!(rdev->flags & RADEON_IS_PCIE))
508  		return;
509  
510  	/* FIXME wait for idle */
511  
512  	switch (lanes) {
513  	case 0:
514  		mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
515  		break;
516  	case 1:
517  		mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
518  		break;
519  	case 2:
520  		mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
521  		break;
522  	case 4:
523  		mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
524  		break;
525  	case 8:
526  		mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
527  		break;
528  	case 12:
529  		mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
530  		break;
531  	case 16:
532  	default:
533  		mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
534  		break;
535  	}
536  
537  	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
538  
539  	if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
540  	    (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))
541  		return;
542  
543  	link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK |
544  			     RADEON_PCIE_LC_RECONFIG_NOW |
545  			     RADEON_PCIE_LC_RECONFIG_LATER |
546  			     RADEON_PCIE_LC_SHORT_RECONFIG_EN);
547  	link_width_cntl |= mask;
548  	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
549  	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, (link_width_cntl |
550  						     RADEON_PCIE_LC_RECONFIG_NOW));
551  
552  	/* wait for lane set to complete */
553  	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
554  	while (link_width_cntl == 0xffffffff)
555  		link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
556  
557  }
558  
rv370_get_pcie_lanes(struct radeon_device * rdev)559  int rv370_get_pcie_lanes(struct radeon_device *rdev)
560  {
561  	u32 link_width_cntl;
562  
563  	if (rdev->flags & RADEON_IS_IGP)
564  		return 0;
565  
566  	if (!(rdev->flags & RADEON_IS_PCIE))
567  		return 0;
568  
569  	/* FIXME wait for idle */
570  
571  	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
572  
573  	switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) {
574  	case RADEON_PCIE_LC_LINK_WIDTH_X0:
575  		return 0;
576  	case RADEON_PCIE_LC_LINK_WIDTH_X1:
577  		return 1;
578  	case RADEON_PCIE_LC_LINK_WIDTH_X2:
579  		return 2;
580  	case RADEON_PCIE_LC_LINK_WIDTH_X4:
581  		return 4;
582  	case RADEON_PCIE_LC_LINK_WIDTH_X8:
583  		return 8;
584  	case RADEON_PCIE_LC_LINK_WIDTH_X16:
585  	default:
586  		return 16;
587  	}
588  }
589  
590  #if defined(CONFIG_DEBUG_FS)
rv370_debugfs_pcie_gart_info_show(struct seq_file * m,void * unused)591  static int rv370_debugfs_pcie_gart_info_show(struct seq_file *m, void *unused)
592  {
593  	struct radeon_device *rdev = m->private;
594  	uint32_t tmp;
595  
596  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
597  	seq_printf(m, "PCIE_TX_GART_CNTL 0x%08x\n", tmp);
598  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_BASE);
599  	seq_printf(m, "PCIE_TX_GART_BASE 0x%08x\n", tmp);
600  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_LO);
601  	seq_printf(m, "PCIE_TX_GART_START_LO 0x%08x\n", tmp);
602  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_HI);
603  	seq_printf(m, "PCIE_TX_GART_START_HI 0x%08x\n", tmp);
604  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_LO);
605  	seq_printf(m, "PCIE_TX_GART_END_LO 0x%08x\n", tmp);
606  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_HI);
607  	seq_printf(m, "PCIE_TX_GART_END_HI 0x%08x\n", tmp);
608  	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_ERROR);
609  	seq_printf(m, "PCIE_TX_GART_ERROR 0x%08x\n", tmp);
610  	return 0;
611  }
612  
613  DEFINE_SHOW_ATTRIBUTE(rv370_debugfs_pcie_gart_info);
614  #endif
615  
rv370_debugfs_pcie_gart_info_init(struct radeon_device * rdev)616  static void rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
617  {
618  #if defined(CONFIG_DEBUG_FS)
619  	struct dentry *root = rdev_to_drm(rdev)->primary->debugfs_root;
620  
621  	debugfs_create_file("rv370_pcie_gart_info", 0444, root, rdev,
622  			    &rv370_debugfs_pcie_gart_info_fops);
623  #endif
624  }
625  
r300_packet0_check(struct radeon_cs_parser * p,struct radeon_cs_packet * pkt,unsigned idx,unsigned reg)626  static int r300_packet0_check(struct radeon_cs_parser *p,
627  		struct radeon_cs_packet *pkt,
628  		unsigned idx, unsigned reg)
629  {
630  	struct radeon_bo_list *reloc;
631  	struct r100_cs_track *track;
632  	volatile uint32_t *ib;
633  	uint32_t tmp, tile_flags = 0;
634  	unsigned i;
635  	int r;
636  	u32 idx_value;
637  
638  	ib = p->ib.ptr;
639  	track = (struct r100_cs_track *)p->track;
640  	idx_value = radeon_get_ib_value(p, idx);
641  
642  	switch (reg) {
643  	case AVIVO_D1MODE_VLINE_START_END:
644  	case RADEON_CRTC_GUI_TRIG_VLINE:
645  		r = r100_cs_packet_parse_vline(p);
646  		if (r) {
647  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
648  					idx, reg);
649  			radeon_cs_dump_packet(p, pkt);
650  			return r;
651  		}
652  		break;
653  	case RADEON_DST_PITCH_OFFSET:
654  	case RADEON_SRC_PITCH_OFFSET:
655  		r = r100_reloc_pitch_offset(p, pkt, idx, reg);
656  		if (r)
657  			return r;
658  		break;
659  	case R300_RB3D_COLOROFFSET0:
660  	case R300_RB3D_COLOROFFSET1:
661  	case R300_RB3D_COLOROFFSET2:
662  	case R300_RB3D_COLOROFFSET3:
663  		i = (reg - R300_RB3D_COLOROFFSET0) >> 2;
664  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
665  		if (r) {
666  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
667  					idx, reg);
668  			radeon_cs_dump_packet(p, pkt);
669  			return r;
670  		}
671  		track->cb[i].robj = reloc->robj;
672  		track->cb[i].offset = idx_value;
673  		track->cb_dirty = true;
674  		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
675  		break;
676  	case R300_ZB_DEPTHOFFSET:
677  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
678  		if (r) {
679  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
680  					idx, reg);
681  			radeon_cs_dump_packet(p, pkt);
682  			return r;
683  		}
684  		track->zb.robj = reloc->robj;
685  		track->zb.offset = idx_value;
686  		track->zb_dirty = true;
687  		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
688  		break;
689  	case R300_TX_OFFSET_0:
690  	case R300_TX_OFFSET_0+4:
691  	case R300_TX_OFFSET_0+8:
692  	case R300_TX_OFFSET_0+12:
693  	case R300_TX_OFFSET_0+16:
694  	case R300_TX_OFFSET_0+20:
695  	case R300_TX_OFFSET_0+24:
696  	case R300_TX_OFFSET_0+28:
697  	case R300_TX_OFFSET_0+32:
698  	case R300_TX_OFFSET_0+36:
699  	case R300_TX_OFFSET_0+40:
700  	case R300_TX_OFFSET_0+44:
701  	case R300_TX_OFFSET_0+48:
702  	case R300_TX_OFFSET_0+52:
703  	case R300_TX_OFFSET_0+56:
704  	case R300_TX_OFFSET_0+60:
705  		i = (reg - R300_TX_OFFSET_0) >> 2;
706  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
707  		if (r) {
708  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
709  					idx, reg);
710  			radeon_cs_dump_packet(p, pkt);
711  			return r;
712  		}
713  
714  		if (p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) {
715  			ib[idx] = (idx_value & 31) | /* keep the 1st 5 bits */
716  				  ((idx_value & ~31) + (u32)reloc->gpu_offset);
717  		} else {
718  			if (reloc->tiling_flags & RADEON_TILING_MACRO)
719  				tile_flags |= R300_TXO_MACRO_TILE;
720  			if (reloc->tiling_flags & RADEON_TILING_MICRO)
721  				tile_flags |= R300_TXO_MICRO_TILE;
722  			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
723  				tile_flags |= R300_TXO_MICRO_TILE_SQUARE;
724  
725  			tmp = idx_value + ((u32)reloc->gpu_offset);
726  			tmp |= tile_flags;
727  			ib[idx] = tmp;
728  		}
729  		track->textures[i].robj = reloc->robj;
730  		track->tex_dirty = true;
731  		break;
732  	/* Tracked registers */
733  	case 0x2084:
734  		/* VAP_VF_CNTL */
735  		track->vap_vf_cntl = idx_value;
736  		break;
737  	case 0x20B4:
738  		/* VAP_VTX_SIZE */
739  		track->vtx_size = idx_value & 0x7F;
740  		break;
741  	case 0x2134:
742  		/* VAP_VF_MAX_VTX_INDX */
743  		track->max_indx = idx_value & 0x00FFFFFFUL;
744  		break;
745  	case 0x2088:
746  		/* VAP_ALT_NUM_VERTICES - only valid on r500 */
747  		if (p->rdev->family < CHIP_RV515)
748  			goto fail;
749  		track->vap_alt_nverts = idx_value & 0xFFFFFF;
750  		break;
751  	case 0x43E4:
752  		/* SC_SCISSOR1 */
753  		track->maxy = ((idx_value >> 13) & 0x1FFF) + 1;
754  		if (p->rdev->family < CHIP_RV515) {
755  			track->maxy -= 1440;
756  		}
757  		track->cb_dirty = true;
758  		track->zb_dirty = true;
759  		break;
760  	case 0x4E00:
761  		/* RB3D_CCTL */
762  		if ((idx_value & (1 << 10)) && /* CMASK_ENABLE */
763  		    p->rdev->cmask_filp != p->filp) {
764  			DRM_ERROR("Invalid RB3D_CCTL: Cannot enable CMASK.\n");
765  			return -EINVAL;
766  		}
767  		track->num_cb = ((idx_value >> 5) & 0x3) + 1;
768  		track->cb_dirty = true;
769  		break;
770  	case 0x4E38:
771  	case 0x4E3C:
772  	case 0x4E40:
773  	case 0x4E44:
774  		/* RB3D_COLORPITCH0 */
775  		/* RB3D_COLORPITCH1 */
776  		/* RB3D_COLORPITCH2 */
777  		/* RB3D_COLORPITCH3 */
778  		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
779  			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
780  			if (r) {
781  				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
782  					  idx, reg);
783  				radeon_cs_dump_packet(p, pkt);
784  				return r;
785  			}
786  
787  			if (reloc->tiling_flags & RADEON_TILING_MACRO)
788  				tile_flags |= R300_COLOR_TILE_ENABLE;
789  			if (reloc->tiling_flags & RADEON_TILING_MICRO)
790  				tile_flags |= R300_COLOR_MICROTILE_ENABLE;
791  			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
792  				tile_flags |= R300_COLOR_MICROTILE_SQUARE_ENABLE;
793  
794  			tmp = idx_value & ~(0x7 << 16);
795  			tmp |= tile_flags;
796  			ib[idx] = tmp;
797  		}
798  		i = (reg - 0x4E38) >> 2;
799  		track->cb[i].pitch = idx_value & 0x3FFE;
800  		switch (((idx_value >> 21) & 0xF)) {
801  		case 9:
802  		case 11:
803  		case 12:
804  			track->cb[i].cpp = 1;
805  			break;
806  		case 3:
807  		case 4:
808  		case 13:
809  		case 15:
810  			track->cb[i].cpp = 2;
811  			break;
812  		case 5:
813  			if (p->rdev->family < CHIP_RV515) {
814  				DRM_ERROR("Invalid color buffer format (%d)!\n",
815  					  ((idx_value >> 21) & 0xF));
816  				return -EINVAL;
817  			}
818  			fallthrough;
819  		case 6:
820  			track->cb[i].cpp = 4;
821  			break;
822  		case 10:
823  			track->cb[i].cpp = 8;
824  			break;
825  		case 7:
826  			track->cb[i].cpp = 16;
827  			break;
828  		default:
829  			DRM_ERROR("Invalid color buffer format (%d) !\n",
830  				  ((idx_value >> 21) & 0xF));
831  			return -EINVAL;
832  		}
833  		track->cb_dirty = true;
834  		break;
835  	case 0x4F00:
836  		/* ZB_CNTL */
837  		if (idx_value & 2) {
838  			track->z_enabled = true;
839  		} else {
840  			track->z_enabled = false;
841  		}
842  		track->zb_dirty = true;
843  		break;
844  	case 0x4F10:
845  		/* ZB_FORMAT */
846  		switch ((idx_value & 0xF)) {
847  		case 0:
848  		case 1:
849  			track->zb.cpp = 2;
850  			break;
851  		case 2:
852  			track->zb.cpp = 4;
853  			break;
854  		default:
855  			DRM_ERROR("Invalid z buffer format (%d) !\n",
856  				  (idx_value & 0xF));
857  			return -EINVAL;
858  		}
859  		track->zb_dirty = true;
860  		break;
861  	case 0x4F24:
862  		/* ZB_DEPTHPITCH */
863  		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
864  			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
865  			if (r) {
866  				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
867  					  idx, reg);
868  				radeon_cs_dump_packet(p, pkt);
869  				return r;
870  			}
871  
872  			if (reloc->tiling_flags & RADEON_TILING_MACRO)
873  				tile_flags |= R300_DEPTHMACROTILE_ENABLE;
874  			if (reloc->tiling_flags & RADEON_TILING_MICRO)
875  				tile_flags |= R300_DEPTHMICROTILE_TILED;
876  			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
877  				tile_flags |= R300_DEPTHMICROTILE_TILED_SQUARE;
878  
879  			tmp = idx_value & ~(0x7 << 16);
880  			tmp |= tile_flags;
881  			ib[idx] = tmp;
882  		}
883  		track->zb.pitch = idx_value & 0x3FFC;
884  		track->zb_dirty = true;
885  		break;
886  	case 0x4104:
887  		/* TX_ENABLE */
888  		for (i = 0; i < 16; i++) {
889  			bool enabled;
890  
891  			enabled = !!(idx_value & (1 << i));
892  			track->textures[i].enabled = enabled;
893  		}
894  		track->tex_dirty = true;
895  		break;
896  	case 0x44C0:
897  	case 0x44C4:
898  	case 0x44C8:
899  	case 0x44CC:
900  	case 0x44D0:
901  	case 0x44D4:
902  	case 0x44D8:
903  	case 0x44DC:
904  	case 0x44E0:
905  	case 0x44E4:
906  	case 0x44E8:
907  	case 0x44EC:
908  	case 0x44F0:
909  	case 0x44F4:
910  	case 0x44F8:
911  	case 0x44FC:
912  		/* TX_FORMAT1_[0-15] */
913  		i = (reg - 0x44C0) >> 2;
914  		tmp = (idx_value >> 25) & 0x3;
915  		track->textures[i].tex_coord_type = tmp;
916  		switch ((idx_value & 0x1F)) {
917  		case R300_TX_FORMAT_X8:
918  		case R300_TX_FORMAT_Y4X4:
919  		case R300_TX_FORMAT_Z3Y3X2:
920  			track->textures[i].cpp = 1;
921  			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
922  			break;
923  		case R300_TX_FORMAT_X16:
924  		case R300_TX_FORMAT_FL_I16:
925  		case R300_TX_FORMAT_Y8X8:
926  		case R300_TX_FORMAT_Z5Y6X5:
927  		case R300_TX_FORMAT_Z6Y5X5:
928  		case R300_TX_FORMAT_W4Z4Y4X4:
929  		case R300_TX_FORMAT_W1Z5Y5X5:
930  		case R300_TX_FORMAT_D3DMFT_CxV8U8:
931  		case R300_TX_FORMAT_B8G8_B8G8:
932  		case R300_TX_FORMAT_G8R8_G8B8:
933  			track->textures[i].cpp = 2;
934  			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
935  			break;
936  		case R300_TX_FORMAT_Y16X16:
937  		case R300_TX_FORMAT_FL_I16A16:
938  		case R300_TX_FORMAT_Z11Y11X10:
939  		case R300_TX_FORMAT_Z10Y11X11:
940  		case R300_TX_FORMAT_W8Z8Y8X8:
941  		case R300_TX_FORMAT_W2Z10Y10X10:
942  		case 0x17:
943  		case R300_TX_FORMAT_FL_I32:
944  		case 0x1e:
945  			track->textures[i].cpp = 4;
946  			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
947  			break;
948  		case R300_TX_FORMAT_W16Z16Y16X16:
949  		case R300_TX_FORMAT_FL_R16G16B16A16:
950  		case R300_TX_FORMAT_FL_I32A32:
951  			track->textures[i].cpp = 8;
952  			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
953  			break;
954  		case R300_TX_FORMAT_FL_R32G32B32A32:
955  			track->textures[i].cpp = 16;
956  			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
957  			break;
958  		case R300_TX_FORMAT_DXT1:
959  			track->textures[i].cpp = 1;
960  			track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
961  			break;
962  		case R300_TX_FORMAT_ATI2N:
963  			if (p->rdev->family < CHIP_R420) {
964  				DRM_ERROR("Invalid texture format %u\n",
965  					  (idx_value & 0x1F));
966  				return -EINVAL;
967  			}
968  			/* The same rules apply as for DXT3/5. */
969  			fallthrough;
970  		case R300_TX_FORMAT_DXT3:
971  		case R300_TX_FORMAT_DXT5:
972  			track->textures[i].cpp = 1;
973  			track->textures[i].compress_format = R100_TRACK_COMP_DXT35;
974  			break;
975  		default:
976  			DRM_ERROR("Invalid texture format %u\n",
977  				  (idx_value & 0x1F));
978  			return -EINVAL;
979  		}
980  		track->tex_dirty = true;
981  		break;
982  	case 0x4400:
983  	case 0x4404:
984  	case 0x4408:
985  	case 0x440C:
986  	case 0x4410:
987  	case 0x4414:
988  	case 0x4418:
989  	case 0x441C:
990  	case 0x4420:
991  	case 0x4424:
992  	case 0x4428:
993  	case 0x442C:
994  	case 0x4430:
995  	case 0x4434:
996  	case 0x4438:
997  	case 0x443C:
998  		/* TX_FILTER0_[0-15] */
999  		i = (reg - 0x4400) >> 2;
1000  		tmp = idx_value & 0x7;
1001  		if (tmp == 2 || tmp == 4 || tmp == 6) {
1002  			track->textures[i].roundup_w = false;
1003  		}
1004  		tmp = (idx_value >> 3) & 0x7;
1005  		if (tmp == 2 || tmp == 4 || tmp == 6) {
1006  			track->textures[i].roundup_h = false;
1007  		}
1008  		track->tex_dirty = true;
1009  		break;
1010  	case 0x4500:
1011  	case 0x4504:
1012  	case 0x4508:
1013  	case 0x450C:
1014  	case 0x4510:
1015  	case 0x4514:
1016  	case 0x4518:
1017  	case 0x451C:
1018  	case 0x4520:
1019  	case 0x4524:
1020  	case 0x4528:
1021  	case 0x452C:
1022  	case 0x4530:
1023  	case 0x4534:
1024  	case 0x4538:
1025  	case 0x453C:
1026  		/* TX_FORMAT2_[0-15] */
1027  		i = (reg - 0x4500) >> 2;
1028  		tmp = idx_value & 0x3FFF;
1029  		track->textures[i].pitch = tmp + 1;
1030  		if (p->rdev->family >= CHIP_RV515) {
1031  			tmp = ((idx_value >> 15) & 1) << 11;
1032  			track->textures[i].width_11 = tmp;
1033  			tmp = ((idx_value >> 16) & 1) << 11;
1034  			track->textures[i].height_11 = tmp;
1035  
1036  			/* ATI1N */
1037  			if (idx_value & (1 << 14)) {
1038  				/* The same rules apply as for DXT1. */
1039  				track->textures[i].compress_format =
1040  					R100_TRACK_COMP_DXT1;
1041  			}
1042  		} else if (idx_value & (1 << 14)) {
1043  			DRM_ERROR("Forbidden bit TXFORMAT_MSB\n");
1044  			return -EINVAL;
1045  		}
1046  		track->tex_dirty = true;
1047  		break;
1048  	case 0x4480:
1049  	case 0x4484:
1050  	case 0x4488:
1051  	case 0x448C:
1052  	case 0x4490:
1053  	case 0x4494:
1054  	case 0x4498:
1055  	case 0x449C:
1056  	case 0x44A0:
1057  	case 0x44A4:
1058  	case 0x44A8:
1059  	case 0x44AC:
1060  	case 0x44B0:
1061  	case 0x44B4:
1062  	case 0x44B8:
1063  	case 0x44BC:
1064  		/* TX_FORMAT0_[0-15] */
1065  		i = (reg - 0x4480) >> 2;
1066  		tmp = idx_value & 0x7FF;
1067  		track->textures[i].width = tmp + 1;
1068  		tmp = (idx_value >> 11) & 0x7FF;
1069  		track->textures[i].height = tmp + 1;
1070  		tmp = (idx_value >> 26) & 0xF;
1071  		track->textures[i].num_levels = tmp;
1072  		tmp = idx_value & (1 << 31);
1073  		track->textures[i].use_pitch = !!tmp;
1074  		tmp = (idx_value >> 22) & 0xF;
1075  		track->textures[i].txdepth = tmp;
1076  		track->tex_dirty = true;
1077  		break;
1078  	case R300_ZB_ZPASS_ADDR:
1079  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1080  		if (r) {
1081  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1082  					idx, reg);
1083  			radeon_cs_dump_packet(p, pkt);
1084  			return r;
1085  		}
1086  		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1087  		break;
1088  	case 0x4e0c:
1089  		/* RB3D_COLOR_CHANNEL_MASK */
1090  		track->color_channel_mask = idx_value;
1091  		track->cb_dirty = true;
1092  		break;
1093  	case 0x43a4:
1094  		/* SC_HYPERZ_EN */
1095  		/* r300c emits this register - we need to disable hyperz for it
1096  		 * without complaining */
1097  		if (p->rdev->hyperz_filp != p->filp) {
1098  			if (idx_value & 0x1)
1099  				ib[idx] = idx_value & ~1;
1100  		}
1101  		break;
1102  	case 0x4f1c:
1103  		/* ZB_BW_CNTL */
1104  		track->zb_cb_clear = !!(idx_value & (1 << 5));
1105  		track->cb_dirty = true;
1106  		track->zb_dirty = true;
1107  		if (p->rdev->hyperz_filp != p->filp) {
1108  			if (idx_value & (R300_HIZ_ENABLE |
1109  					 R300_RD_COMP_ENABLE |
1110  					 R300_WR_COMP_ENABLE |
1111  					 R300_FAST_FILL_ENABLE))
1112  				goto fail;
1113  		}
1114  		break;
1115  	case 0x4e04:
1116  		/* RB3D_BLENDCNTL */
1117  		track->blend_read_enable = !!(idx_value & (1 << 2));
1118  		track->cb_dirty = true;
1119  		break;
1120  	case R300_RB3D_AARESOLVE_OFFSET:
1121  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1122  		if (r) {
1123  			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1124  				  idx, reg);
1125  			radeon_cs_dump_packet(p, pkt);
1126  			return r;
1127  		}
1128  		track->aa.robj = reloc->robj;
1129  		track->aa.offset = idx_value;
1130  		track->aa_dirty = true;
1131  		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1132  		break;
1133  	case R300_RB3D_AARESOLVE_PITCH:
1134  		track->aa.pitch = idx_value & 0x3FFE;
1135  		track->aa_dirty = true;
1136  		break;
1137  	case R300_RB3D_AARESOLVE_CTL:
1138  		track->aaresolve = idx_value & 0x1;
1139  		track->aa_dirty = true;
1140  		break;
1141  	case 0x4f30: /* ZB_MASK_OFFSET */
1142  	case 0x4f34: /* ZB_ZMASK_PITCH */
1143  	case 0x4f44: /* ZB_HIZ_OFFSET */
1144  	case 0x4f54: /* ZB_HIZ_PITCH */
1145  		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1146  			goto fail;
1147  		break;
1148  	case 0x4028:
1149  		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1150  			goto fail;
1151  		/* GB_Z_PEQ_CONFIG */
1152  		if (p->rdev->family >= CHIP_RV350)
1153  			break;
1154  		goto fail;
1155  		break;
1156  	case 0x4be8:
1157  		/* valid register only on RV530 */
1158  		if (p->rdev->family == CHIP_RV530)
1159  			break;
1160  		fallthrough;
1161  		/* fallthrough do not move */
1162  	default:
1163  		goto fail;
1164  	}
1165  	return 0;
1166  fail:
1167  	pr_err("Forbidden register 0x%04X in cs at %d (val=%08x)\n",
1168  	       reg, idx, idx_value);
1169  	return -EINVAL;
1170  }
1171  
r300_packet3_check(struct radeon_cs_parser * p,struct radeon_cs_packet * pkt)1172  static int r300_packet3_check(struct radeon_cs_parser *p,
1173  			      struct radeon_cs_packet *pkt)
1174  {
1175  	struct radeon_bo_list *reloc;
1176  	struct r100_cs_track *track;
1177  	volatile uint32_t *ib;
1178  	unsigned idx;
1179  	int r;
1180  
1181  	ib = p->ib.ptr;
1182  	idx = pkt->idx + 1;
1183  	track = (struct r100_cs_track *)p->track;
1184  	switch (pkt->opcode) {
1185  	case PACKET3_3D_LOAD_VBPNTR:
1186  		r = r100_packet3_load_vbpntr(p, pkt, idx);
1187  		if (r)
1188  			return r;
1189  		break;
1190  	case PACKET3_INDX_BUFFER:
1191  		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1192  		if (r) {
1193  			DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
1194  			radeon_cs_dump_packet(p, pkt);
1195  			return r;
1196  		}
1197  		ib[idx+1] = radeon_get_ib_value(p, idx + 1) + ((u32)reloc->gpu_offset);
1198  		r = r100_cs_track_check_pkt3_indx_buffer(p, pkt, reloc->robj);
1199  		if (r) {
1200  			return r;
1201  		}
1202  		break;
1203  	/* Draw packet */
1204  	case PACKET3_3D_DRAW_IMMD:
1205  		/* Number of dwords is vtx_size * (num_vertices - 1)
1206  		 * PRIM_WALK must be equal to 3 vertex data in embedded
1207  		 * in cmd stream */
1208  		if (((radeon_get_ib_value(p, idx + 1) >> 4) & 0x3) != 3) {
1209  			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1210  			return -EINVAL;
1211  		}
1212  		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1213  		track->immd_dwords = pkt->count - 1;
1214  		r = r100_cs_track_check(p->rdev, track);
1215  		if (r) {
1216  			return r;
1217  		}
1218  		break;
1219  	case PACKET3_3D_DRAW_IMMD_2:
1220  		/* Number of dwords is vtx_size * (num_vertices - 1)
1221  		 * PRIM_WALK must be equal to 3 vertex data in embedded
1222  		 * in cmd stream */
1223  		if (((radeon_get_ib_value(p, idx) >> 4) & 0x3) != 3) {
1224  			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1225  			return -EINVAL;
1226  		}
1227  		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1228  		track->immd_dwords = pkt->count;
1229  		r = r100_cs_track_check(p->rdev, track);
1230  		if (r) {
1231  			return r;
1232  		}
1233  		break;
1234  	case PACKET3_3D_DRAW_VBUF:
1235  		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1236  		r = r100_cs_track_check(p->rdev, track);
1237  		if (r) {
1238  			return r;
1239  		}
1240  		break;
1241  	case PACKET3_3D_DRAW_VBUF_2:
1242  		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1243  		r = r100_cs_track_check(p->rdev, track);
1244  		if (r) {
1245  			return r;
1246  		}
1247  		break;
1248  	case PACKET3_3D_DRAW_INDX:
1249  		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1250  		r = r100_cs_track_check(p->rdev, track);
1251  		if (r) {
1252  			return r;
1253  		}
1254  		break;
1255  	case PACKET3_3D_DRAW_INDX_2:
1256  		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1257  		r = r100_cs_track_check(p->rdev, track);
1258  		if (r) {
1259  			return r;
1260  		}
1261  		break;
1262  	case PACKET3_3D_CLEAR_HIZ:
1263  	case PACKET3_3D_CLEAR_ZMASK:
1264  		if (p->rdev->hyperz_filp != p->filp)
1265  			return -EINVAL;
1266  		break;
1267  	case PACKET3_3D_CLEAR_CMASK:
1268  		if (p->rdev->cmask_filp != p->filp)
1269  			return -EINVAL;
1270  		break;
1271  	case PACKET3_NOP:
1272  		break;
1273  	default:
1274  		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
1275  		return -EINVAL;
1276  	}
1277  	return 0;
1278  }
1279  
r300_cs_parse(struct radeon_cs_parser * p)1280  int r300_cs_parse(struct radeon_cs_parser *p)
1281  {
1282  	struct radeon_cs_packet pkt;
1283  	struct r100_cs_track *track;
1284  	int r;
1285  
1286  	track = kzalloc(sizeof(*track), GFP_KERNEL);
1287  	if (track == NULL)
1288  		return -ENOMEM;
1289  	r100_cs_track_clear(p->rdev, track);
1290  	p->track = track;
1291  	do {
1292  		r = radeon_cs_packet_parse(p, &pkt, p->idx);
1293  		if (r) {
1294  			return r;
1295  		}
1296  		p->idx += pkt.count + 2;
1297  		switch (pkt.type) {
1298  		case RADEON_PACKET_TYPE0:
1299  			r = r100_cs_parse_packet0(p, &pkt,
1300  						  p->rdev->config.r300.reg_safe_bm,
1301  						  p->rdev->config.r300.reg_safe_bm_size,
1302  						  &r300_packet0_check);
1303  			break;
1304  		case RADEON_PACKET_TYPE2:
1305  			break;
1306  		case RADEON_PACKET_TYPE3:
1307  			r = r300_packet3_check(p, &pkt);
1308  			break;
1309  		default:
1310  			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
1311  			return -EINVAL;
1312  		}
1313  		if (r) {
1314  			return r;
1315  		}
1316  	} while (p->idx < p->chunk_ib->length_dw);
1317  	return 0;
1318  }
1319  
r300_set_reg_safe(struct radeon_device * rdev)1320  void r300_set_reg_safe(struct radeon_device *rdev)
1321  {
1322  	rdev->config.r300.reg_safe_bm = r300_reg_safe_bm;
1323  	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r300_reg_safe_bm);
1324  }
1325  
r300_mc_program(struct radeon_device * rdev)1326  void r300_mc_program(struct radeon_device *rdev)
1327  {
1328  	struct r100_mc_save save;
1329  
1330  	r100_debugfs_mc_info_init(rdev);
1331  
1332  	/* Stops all mc clients */
1333  	r100_mc_stop(rdev, &save);
1334  	if (rdev->flags & RADEON_IS_AGP) {
1335  		WREG32(R_00014C_MC_AGP_LOCATION,
1336  			S_00014C_MC_AGP_START(rdev->mc.gtt_start >> 16) |
1337  			S_00014C_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
1338  		WREG32(R_000170_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
1339  		WREG32(R_00015C_AGP_BASE_2,
1340  			upper_32_bits(rdev->mc.agp_base) & 0xff);
1341  	} else {
1342  		WREG32(R_00014C_MC_AGP_LOCATION, 0x0FFFFFFF);
1343  		WREG32(R_000170_AGP_BASE, 0);
1344  		WREG32(R_00015C_AGP_BASE_2, 0);
1345  	}
1346  	/* Wait for mc idle */
1347  	if (r300_mc_wait_for_idle(rdev))
1348  		DRM_INFO("Failed to wait MC idle before programming MC.\n");
1349  	/* Program MC, should be a 32bits limited address space */
1350  	WREG32(R_000148_MC_FB_LOCATION,
1351  		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
1352  		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
1353  	r100_mc_resume(rdev, &save);
1354  }
1355  
r300_clock_startup(struct radeon_device * rdev)1356  void r300_clock_startup(struct radeon_device *rdev)
1357  {
1358  	u32 tmp;
1359  
1360  	if (radeon_dynclks != -1 && radeon_dynclks)
1361  		radeon_legacy_set_clock_gating(rdev, 1);
1362  	/* We need to force on some of the block */
1363  	tmp = RREG32_PLL(R_00000D_SCLK_CNTL);
1364  	tmp |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1);
1365  	if ((rdev->family == CHIP_RV350) || (rdev->family == CHIP_RV380))
1366  		tmp |= S_00000D_FORCE_VAP(1);
1367  	WREG32_PLL(R_00000D_SCLK_CNTL, tmp);
1368  }
1369  
r300_startup(struct radeon_device * rdev)1370  static int r300_startup(struct radeon_device *rdev)
1371  {
1372  	int r;
1373  
1374  	/* set common regs */
1375  	r100_set_common_regs(rdev);
1376  	/* program mc */
1377  	r300_mc_program(rdev);
1378  	/* Resume clock */
1379  	r300_clock_startup(rdev);
1380  	/* Initialize GPU configuration (# pipes, ...) */
1381  	r300_gpu_init(rdev);
1382  	/* Initialize GART (initialize after TTM so we can allocate
1383  	 * memory through TTM but finalize after TTM) */
1384  	if (rdev->flags & RADEON_IS_PCIE) {
1385  		r = rv370_pcie_gart_enable(rdev);
1386  		if (r)
1387  			return r;
1388  	}
1389  
1390  	if (rdev->family == CHIP_R300 ||
1391  	    rdev->family == CHIP_R350 ||
1392  	    rdev->family == CHIP_RV350)
1393  		r100_enable_bm(rdev);
1394  
1395  	if (rdev->flags & RADEON_IS_PCI) {
1396  		r = r100_pci_gart_enable(rdev);
1397  		if (r)
1398  			return r;
1399  	}
1400  
1401  	/* allocate wb buffer */
1402  	r = radeon_wb_init(rdev);
1403  	if (r)
1404  		return r;
1405  
1406  	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1407  	if (r) {
1408  		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1409  		return r;
1410  	}
1411  
1412  	/* Enable IRQ */
1413  	if (!rdev->irq.installed) {
1414  		r = radeon_irq_kms_init(rdev);
1415  		if (r)
1416  			return r;
1417  	}
1418  
1419  	r100_irq_set(rdev);
1420  	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
1421  	/* 1M ring buffer */
1422  	r = r100_cp_init(rdev, 1024 * 1024);
1423  	if (r) {
1424  		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
1425  		return r;
1426  	}
1427  
1428  	r = radeon_ib_pool_init(rdev);
1429  	if (r) {
1430  		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1431  		return r;
1432  	}
1433  
1434  	return 0;
1435  }
1436  
r300_resume(struct radeon_device * rdev)1437  int r300_resume(struct radeon_device *rdev)
1438  {
1439  	int r;
1440  
1441  	/* Make sur GART are not working */
1442  	if (rdev->flags & RADEON_IS_PCIE)
1443  		rv370_pcie_gart_disable(rdev);
1444  	if (rdev->flags & RADEON_IS_PCI)
1445  		r100_pci_gart_disable(rdev);
1446  	/* Resume clock before doing reset */
1447  	r300_clock_startup(rdev);
1448  	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1449  	if (radeon_asic_reset(rdev)) {
1450  		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1451  			RREG32(R_000E40_RBBM_STATUS),
1452  			RREG32(R_0007C0_CP_STAT));
1453  	}
1454  	/* post */
1455  	radeon_combios_asic_init(rdev_to_drm(rdev));
1456  	/* Resume clock after posting */
1457  	r300_clock_startup(rdev);
1458  	/* Initialize surface registers */
1459  	radeon_surface_init(rdev);
1460  
1461  	rdev->accel_working = true;
1462  	r = r300_startup(rdev);
1463  	if (r) {
1464  		rdev->accel_working = false;
1465  	}
1466  	return r;
1467  }
1468  
r300_suspend(struct radeon_device * rdev)1469  int r300_suspend(struct radeon_device *rdev)
1470  {
1471  	radeon_pm_suspend(rdev);
1472  	r100_cp_disable(rdev);
1473  	radeon_wb_disable(rdev);
1474  	r100_irq_disable(rdev);
1475  	if (rdev->flags & RADEON_IS_PCIE)
1476  		rv370_pcie_gart_disable(rdev);
1477  	if (rdev->flags & RADEON_IS_PCI)
1478  		r100_pci_gart_disable(rdev);
1479  	return 0;
1480  }
1481  
r300_fini(struct radeon_device * rdev)1482  void r300_fini(struct radeon_device *rdev)
1483  {
1484  	radeon_pm_fini(rdev);
1485  	r100_cp_fini(rdev);
1486  	radeon_wb_fini(rdev);
1487  	radeon_ib_pool_fini(rdev);
1488  	radeon_gem_fini(rdev);
1489  	if (rdev->flags & RADEON_IS_PCIE)
1490  		rv370_pcie_gart_fini(rdev);
1491  	if (rdev->flags & RADEON_IS_PCI)
1492  		r100_pci_gart_fini(rdev);
1493  	radeon_agp_fini(rdev);
1494  	radeon_irq_kms_fini(rdev);
1495  	radeon_fence_driver_fini(rdev);
1496  	radeon_bo_fini(rdev);
1497  	radeon_atombios_fini(rdev);
1498  	kfree(rdev->bios);
1499  	rdev->bios = NULL;
1500  }
1501  
r300_init(struct radeon_device * rdev)1502  int r300_init(struct radeon_device *rdev)
1503  {
1504  	int r;
1505  
1506  	/* Disable VGA */
1507  	r100_vga_render_disable(rdev);
1508  	/* Initialize scratch registers */
1509  	radeon_scratch_init(rdev);
1510  	/* Initialize surface registers */
1511  	radeon_surface_init(rdev);
1512  	/* TODO: disable VGA need to use VGA request */
1513  	/* restore some register to sane defaults */
1514  	r100_restore_sanity(rdev);
1515  	/* BIOS*/
1516  	if (!radeon_get_bios(rdev)) {
1517  		if (ASIC_IS_AVIVO(rdev))
1518  			return -EINVAL;
1519  	}
1520  	if (rdev->is_atom_bios) {
1521  		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
1522  		return -EINVAL;
1523  	} else {
1524  		r = radeon_combios_init(rdev);
1525  		if (r)
1526  			return r;
1527  	}
1528  	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1529  	if (radeon_asic_reset(rdev)) {
1530  		dev_warn(rdev->dev,
1531  			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1532  			RREG32(R_000E40_RBBM_STATUS),
1533  			RREG32(R_0007C0_CP_STAT));
1534  	}
1535  	/* check if cards are posted or not */
1536  	if (radeon_boot_test_post_card(rdev) == false)
1537  		return -EINVAL;
1538  	/* Set asic errata */
1539  	r300_errata(rdev);
1540  	/* Initialize clocks */
1541  	radeon_get_clock_info(rdev_to_drm(rdev));
1542  	/* initialize AGP */
1543  	if (rdev->flags & RADEON_IS_AGP) {
1544  		r = radeon_agp_init(rdev);
1545  		if (r) {
1546  			radeon_agp_disable(rdev);
1547  		}
1548  	}
1549  	/* initialize memory controller */
1550  	r300_mc_init(rdev);
1551  	/* Fence driver */
1552  	radeon_fence_driver_init(rdev);
1553  	/* Memory manager */
1554  	r = radeon_bo_init(rdev);
1555  	if (r)
1556  		return r;
1557  	if (rdev->flags & RADEON_IS_PCIE) {
1558  		r = rv370_pcie_gart_init(rdev);
1559  		if (r)
1560  			return r;
1561  	}
1562  	if (rdev->flags & RADEON_IS_PCI) {
1563  		r = r100_pci_gart_init(rdev);
1564  		if (r)
1565  			return r;
1566  	}
1567  	r300_set_reg_safe(rdev);
1568  
1569  	/* Initialize power management */
1570  	radeon_pm_init(rdev);
1571  
1572  	rdev->accel_working = true;
1573  	r = r300_startup(rdev);
1574  	if (r) {
1575  		/* Something went wrong with the accel init, so stop accel */
1576  		dev_err(rdev->dev, "Disabling GPU acceleration\n");
1577  		r100_cp_fini(rdev);
1578  		radeon_wb_fini(rdev);
1579  		radeon_ib_pool_fini(rdev);
1580  		radeon_irq_kms_fini(rdev);
1581  		if (rdev->flags & RADEON_IS_PCIE)
1582  			rv370_pcie_gart_fini(rdev);
1583  		if (rdev->flags & RADEON_IS_PCI)
1584  			r100_pci_gart_fini(rdev);
1585  		radeon_agp_fini(rdev);
1586  		rdev->accel_working = false;
1587  	}
1588  	return 0;
1589  }
1590