xref: /openbmc/linux/drivers/gpu/drm/radeon/r300.c (revision 791d3ef2)
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 #include <linux/seq_file.h>
29 #include <linux/slab.h>
30 #include <drm/drmP.h>
31 #include <drm/drm.h>
32 #include <drm/drm_crtc_helper.h>
33 #include "radeon_reg.h"
34 #include "radeon.h"
35 #include "radeon_asic.h"
36 #include <drm/radeon_drm.h>
37 #include "r100_track.h"
38 #include "r300d.h"
39 #include "rv350d.h"
40 #include "r300_reg_safe.h"
41 
42 /* This files gather functions specifics to: r300,r350,rv350,rv370,rv380
43  *
44  * GPU Errata:
45  * - HOST_PATH_CNTL: r300 family seems to dislike write to HOST_PATH_CNTL
46  *   using MMIO to flush host path read cache, this lead to HARDLOCKUP.
47  *   However, scheduling such write to the ring seems harmless, i suspect
48  *   the CP read collide with the flush somehow, or maybe the MC, hard to
49  *   tell. (Jerome Glisse)
50  */
51 
52 /*
53  * Indirect registers accessor
54  */
55 uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
56 {
57 	unsigned long flags;
58 	uint32_t r;
59 
60 	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
61 	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
62 	r = RREG32(RADEON_PCIE_DATA);
63 	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
64 	return r;
65 }
66 
67 void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
68 {
69 	unsigned long flags;
70 
71 	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
72 	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
73 	WREG32(RADEON_PCIE_DATA, (v));
74 	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
75 }
76 
77 /*
78  * rv370,rv380 PCIE GART
79  */
80 static int rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
81 
82 void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev)
83 {
84 	uint32_t tmp;
85 	int i;
86 
87 	/* Workaround HW bug do flush 2 times */
88 	for (i = 0; i < 2; i++) {
89 		tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
90 		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB);
91 		(void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
92 		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
93 	}
94 	mb();
95 }
96 
97 #define R300_PTE_UNSNOOPED (1 << 0)
98 #define R300_PTE_WRITEABLE (1 << 2)
99 #define R300_PTE_READABLE  (1 << 3)
100 
101 uint64_t rv370_pcie_gart_get_page_entry(uint64_t addr, uint32_t flags)
102 {
103 	addr = (lower_32_bits(addr) >> 8) |
104 		((upper_32_bits(addr) & 0xff) << 24);
105 	if (flags & RADEON_GART_PAGE_READ)
106 		addr |= R300_PTE_READABLE;
107 	if (flags & RADEON_GART_PAGE_WRITE)
108 		addr |= R300_PTE_WRITEABLE;
109 	if (!(flags & RADEON_GART_PAGE_SNOOP))
110 		addr |= R300_PTE_UNSNOOPED;
111 	return addr;
112 }
113 
114 void rv370_pcie_gart_set_page(struct radeon_device *rdev, unsigned i,
115 			      uint64_t entry)
116 {
117 	void __iomem *ptr = rdev->gart.ptr;
118 
119 	/* on x86 we want this to be CPU endian, on powerpc
120 	 * on powerpc without HW swappers, it'll get swapped on way
121 	 * into VRAM - so no need for cpu_to_le32 on VRAM tables */
122 	writel(entry, ((void __iomem *)ptr) + (i * 4));
123 }
124 
125 int rv370_pcie_gart_init(struct radeon_device *rdev)
126 {
127 	int r;
128 
129 	if (rdev->gart.robj) {
130 		WARN(1, "RV370 PCIE GART already initialized\n");
131 		return 0;
132 	}
133 	/* Initialize common gart structure */
134 	r = radeon_gart_init(rdev);
135 	if (r)
136 		return r;
137 	r = rv370_debugfs_pcie_gart_info_init(rdev);
138 	if (r)
139 		DRM_ERROR("Failed to register debugfs file for PCIE gart !\n");
140 	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
141 	rdev->asic->gart.tlb_flush = &rv370_pcie_gart_tlb_flush;
142 	rdev->asic->gart.get_page_entry = &rv370_pcie_gart_get_page_entry;
143 	rdev->asic->gart.set_page = &rv370_pcie_gart_set_page;
144 	return radeon_gart_table_vram_alloc(rdev);
145 }
146 
147 int rv370_pcie_gart_enable(struct radeon_device *rdev)
148 {
149 	uint32_t table_addr;
150 	uint32_t tmp;
151 	int r;
152 
153 	if (rdev->gart.robj == NULL) {
154 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
155 		return -EINVAL;
156 	}
157 	r = radeon_gart_table_vram_pin(rdev);
158 	if (r)
159 		return r;
160 	/* discard memory request outside of configured range */
161 	tmp = RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
162 	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
163 	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, rdev->mc.gtt_start);
164 	tmp = rdev->mc.gtt_end & ~RADEON_GPU_PAGE_MASK;
165 	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, tmp);
166 	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
167 	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
168 	table_addr = rdev->gart.table_addr;
169 	WREG32_PCIE(RADEON_PCIE_TX_GART_BASE, table_addr);
170 	/* FIXME: setup default page */
171 	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO, rdev->mc.vram_start);
172 	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_HI, 0);
173 	/* Clear error */
174 	WREG32_PCIE(RADEON_PCIE_TX_GART_ERROR, 0);
175 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
176 	tmp |= RADEON_PCIE_TX_GART_EN;
177 	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
178 	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
179 	rv370_pcie_gart_tlb_flush(rdev);
180 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
181 		 (unsigned)(rdev->mc.gtt_size >> 20),
182 		 (unsigned long long)table_addr);
183 	rdev->gart.ready = true;
184 	return 0;
185 }
186 
187 void rv370_pcie_gart_disable(struct radeon_device *rdev)
188 {
189 	u32 tmp;
190 
191 	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, 0);
192 	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, 0);
193 	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
194 	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
195 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
196 	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
197 	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp & ~RADEON_PCIE_TX_GART_EN);
198 	radeon_gart_table_vram_unpin(rdev);
199 }
200 
201 void rv370_pcie_gart_fini(struct radeon_device *rdev)
202 {
203 	radeon_gart_fini(rdev);
204 	rv370_pcie_gart_disable(rdev);
205 	radeon_gart_table_vram_free(rdev);
206 }
207 
208 void r300_fence_ring_emit(struct radeon_device *rdev,
209 			  struct radeon_fence *fence)
210 {
211 	struct radeon_ring *ring = &rdev->ring[fence->ring];
212 
213 	/* Who ever call radeon_fence_emit should call ring_lock and ask
214 	 * for enough space (today caller are ib schedule and buffer move) */
215 	/* Write SC register so SC & US assert idle */
216 	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_TL, 0));
217 	radeon_ring_write(ring, 0);
218 	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_BR, 0));
219 	radeon_ring_write(ring, 0);
220 	/* Flush 3D cache */
221 	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
222 	radeon_ring_write(ring, R300_RB3D_DC_FLUSH);
223 	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
224 	radeon_ring_write(ring, R300_ZC_FLUSH);
225 	/* Wait until IDLE & CLEAN */
226 	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
227 	radeon_ring_write(ring, (RADEON_WAIT_3D_IDLECLEAN |
228 				 RADEON_WAIT_2D_IDLECLEAN |
229 				 RADEON_WAIT_DMA_GUI_IDLE));
230 	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
231 	radeon_ring_write(ring, rdev->config.r300.hdp_cntl |
232 				RADEON_HDP_READ_BUFFER_INVALIDATE);
233 	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
234 	radeon_ring_write(ring, rdev->config.r300.hdp_cntl);
235 	/* Emit fence sequence & fire IRQ */
236 	radeon_ring_write(ring, PACKET0(rdev->fence_drv[fence->ring].scratch_reg, 0));
237 	radeon_ring_write(ring, fence->seq);
238 	radeon_ring_write(ring, PACKET0(RADEON_GEN_INT_STATUS, 0));
239 	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
240 }
241 
242 void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
243 {
244 	unsigned gb_tile_config;
245 	int r;
246 
247 	/* Sub pixel 1/12 so we can have 4K rendering according to doc */
248 	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
249 	switch(rdev->num_gb_pipes) {
250 	case 2:
251 		gb_tile_config |= R300_PIPE_COUNT_R300;
252 		break;
253 	case 3:
254 		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
255 		break;
256 	case 4:
257 		gb_tile_config |= R300_PIPE_COUNT_R420;
258 		break;
259 	case 1:
260 	default:
261 		gb_tile_config |= R300_PIPE_COUNT_RV350;
262 		break;
263 	}
264 
265 	r = radeon_ring_lock(rdev, ring, 64);
266 	if (r) {
267 		return;
268 	}
269 	radeon_ring_write(ring, PACKET0(RADEON_ISYNC_CNTL, 0));
270 	radeon_ring_write(ring,
271 			  RADEON_ISYNC_ANY2D_IDLE3D |
272 			  RADEON_ISYNC_ANY3D_IDLE2D |
273 			  RADEON_ISYNC_WAIT_IDLEGUI |
274 			  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
275 	radeon_ring_write(ring, PACKET0(R300_GB_TILE_CONFIG, 0));
276 	radeon_ring_write(ring, gb_tile_config);
277 	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
278 	radeon_ring_write(ring,
279 			  RADEON_WAIT_2D_IDLECLEAN |
280 			  RADEON_WAIT_3D_IDLECLEAN);
281 	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
282 	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
283 	radeon_ring_write(ring, PACKET0(R300_GB_SELECT, 0));
284 	radeon_ring_write(ring, 0);
285 	radeon_ring_write(ring, PACKET0(R300_GB_ENABLE, 0));
286 	radeon_ring_write(ring, 0);
287 	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
288 	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
289 	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
290 	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
291 	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
292 	radeon_ring_write(ring,
293 			  RADEON_WAIT_2D_IDLECLEAN |
294 			  RADEON_WAIT_3D_IDLECLEAN);
295 	radeon_ring_write(ring, PACKET0(R300_GB_AA_CONFIG, 0));
296 	radeon_ring_write(ring, 0);
297 	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
298 	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
299 	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
300 	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
301 	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS0, 0));
302 	radeon_ring_write(ring,
303 			  ((6 << R300_MS_X0_SHIFT) |
304 			   (6 << R300_MS_Y0_SHIFT) |
305 			   (6 << R300_MS_X1_SHIFT) |
306 			   (6 << R300_MS_Y1_SHIFT) |
307 			   (6 << R300_MS_X2_SHIFT) |
308 			   (6 << R300_MS_Y2_SHIFT) |
309 			   (6 << R300_MSBD0_Y_SHIFT) |
310 			   (6 << R300_MSBD0_X_SHIFT)));
311 	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS1, 0));
312 	radeon_ring_write(ring,
313 			  ((6 << R300_MS_X3_SHIFT) |
314 			   (6 << R300_MS_Y3_SHIFT) |
315 			   (6 << R300_MS_X4_SHIFT) |
316 			   (6 << R300_MS_Y4_SHIFT) |
317 			   (6 << R300_MS_X5_SHIFT) |
318 			   (6 << R300_MS_Y5_SHIFT) |
319 			   (6 << R300_MSBD1_SHIFT)));
320 	radeon_ring_write(ring, PACKET0(R300_GA_ENHANCE, 0));
321 	radeon_ring_write(ring, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
322 	radeon_ring_write(ring, PACKET0(R300_GA_POLY_MODE, 0));
323 	radeon_ring_write(ring,
324 			  R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
325 	radeon_ring_write(ring, PACKET0(R300_GA_ROUND_MODE, 0));
326 	radeon_ring_write(ring,
327 			  R300_GEOMETRY_ROUND_NEAREST |
328 			  R300_COLOR_ROUND_NEAREST);
329 	radeon_ring_unlock_commit(rdev, ring, false);
330 }
331 
332 static void r300_errata(struct radeon_device *rdev)
333 {
334 	rdev->pll_errata = 0;
335 
336 	if (rdev->family == CHIP_R300 &&
337 	    (RREG32(RADEON_CONFIG_CNTL) & RADEON_CFG_ATI_REV_ID_MASK) == RADEON_CFG_ATI_REV_A11) {
338 		rdev->pll_errata |= CHIP_ERRATA_R300_CG;
339 	}
340 }
341 
342 int r300_mc_wait_for_idle(struct radeon_device *rdev)
343 {
344 	unsigned i;
345 	uint32_t tmp;
346 
347 	for (i = 0; i < rdev->usec_timeout; i++) {
348 		/* read MC_STATUS */
349 		tmp = RREG32(RADEON_MC_STATUS);
350 		if (tmp & R300_MC_IDLE) {
351 			return 0;
352 		}
353 		DRM_UDELAY(1);
354 	}
355 	return -1;
356 }
357 
358 static void r300_gpu_init(struct radeon_device *rdev)
359 {
360 	uint32_t gb_tile_config, tmp;
361 
362 	if ((rdev->family == CHIP_R300 && rdev->pdev->device != 0x4144) ||
363 	    (rdev->family == CHIP_R350 && rdev->pdev->device != 0x4148)) {
364 		/* r300,r350 */
365 		rdev->num_gb_pipes = 2;
366 	} else {
367 		/* rv350,rv370,rv380,r300 AD, r350 AH */
368 		rdev->num_gb_pipes = 1;
369 	}
370 	rdev->num_z_pipes = 1;
371 	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
372 	switch (rdev->num_gb_pipes) {
373 	case 2:
374 		gb_tile_config |= R300_PIPE_COUNT_R300;
375 		break;
376 	case 3:
377 		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
378 		break;
379 	case 4:
380 		gb_tile_config |= R300_PIPE_COUNT_R420;
381 		break;
382 	default:
383 	case 1:
384 		gb_tile_config |= R300_PIPE_COUNT_RV350;
385 		break;
386 	}
387 	WREG32(R300_GB_TILE_CONFIG, gb_tile_config);
388 
389 	if (r100_gui_wait_for_idle(rdev)) {
390 		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
391 	}
392 
393 	tmp = RREG32(R300_DST_PIPE_CONFIG);
394 	WREG32(R300_DST_PIPE_CONFIG, tmp | R300_PIPE_AUTO_CONFIG);
395 
396 	WREG32(R300_RB2D_DSTCACHE_MODE,
397 	       R300_DC_AUTOFLUSH_ENABLE |
398 	       R300_DC_DC_DISABLE_IGNORE_PE);
399 
400 	if (r100_gui_wait_for_idle(rdev)) {
401 		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
402 	}
403 	if (r300_mc_wait_for_idle(rdev)) {
404 		pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
405 	}
406 	DRM_INFO("radeon: %d quad pipes, %d Z pipes initialized\n",
407 		 rdev->num_gb_pipes, rdev->num_z_pipes);
408 }
409 
410 int r300_asic_reset(struct radeon_device *rdev, bool hard)
411 {
412 	struct r100_mc_save save;
413 	u32 status, tmp;
414 	int ret = 0;
415 
416 	status = RREG32(R_000E40_RBBM_STATUS);
417 	if (!G_000E40_GUI_ACTIVE(status)) {
418 		return 0;
419 	}
420 	r100_mc_stop(rdev, &save);
421 	status = RREG32(R_000E40_RBBM_STATUS);
422 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
423 	/* stop CP */
424 	WREG32(RADEON_CP_CSQ_CNTL, 0);
425 	tmp = RREG32(RADEON_CP_RB_CNTL);
426 	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
427 	WREG32(RADEON_CP_RB_RPTR_WR, 0);
428 	WREG32(RADEON_CP_RB_WPTR, 0);
429 	WREG32(RADEON_CP_RB_CNTL, tmp);
430 	/* save PCI state */
431 	pci_save_state(rdev->pdev);
432 	/* disable bus mastering */
433 	r100_bm_disable(rdev);
434 	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
435 					S_0000F0_SOFT_RESET_GA(1));
436 	RREG32(R_0000F0_RBBM_SOFT_RESET);
437 	mdelay(500);
438 	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
439 	mdelay(1);
440 	status = RREG32(R_000E40_RBBM_STATUS);
441 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
442 	/* resetting the CP seems to be problematic sometimes it end up
443 	 * hard locking the computer, but it's necessary for successful
444 	 * reset more test & playing is needed on R3XX/R4XX to find a
445 	 * reliable (if any solution)
446 	 */
447 	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
448 	RREG32(R_0000F0_RBBM_SOFT_RESET);
449 	mdelay(500);
450 	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
451 	mdelay(1);
452 	status = RREG32(R_000E40_RBBM_STATUS);
453 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
454 	/* restore PCI & busmastering */
455 	pci_restore_state(rdev->pdev);
456 	r100_enable_bm(rdev);
457 	/* Check if GPU is idle */
458 	if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
459 		dev_err(rdev->dev, "failed to reset GPU\n");
460 		ret = -1;
461 	} else
462 		dev_info(rdev->dev, "GPU reset succeed\n");
463 	r100_mc_resume(rdev, &save);
464 	return ret;
465 }
466 
467 /*
468  * r300,r350,rv350,rv380 VRAM info
469  */
470 void r300_mc_init(struct radeon_device *rdev)
471 {
472 	u64 base;
473 	u32 tmp;
474 
475 	/* DDR for all card after R300 & IGP */
476 	rdev->mc.vram_is_ddr = true;
477 	tmp = RREG32(RADEON_MEM_CNTL);
478 	tmp &= R300_MEM_NUM_CHANNELS_MASK;
479 	switch (tmp) {
480 	case 0: rdev->mc.vram_width = 64; break;
481 	case 1: rdev->mc.vram_width = 128; break;
482 	case 2: rdev->mc.vram_width = 256; break;
483 	default:  rdev->mc.vram_width = 128; break;
484 	}
485 	r100_vram_init_sizes(rdev);
486 	base = rdev->mc.aper_base;
487 	if (rdev->flags & RADEON_IS_IGP)
488 		base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
489 	radeon_vram_location(rdev, &rdev->mc, base);
490 	rdev->mc.gtt_base_align = 0;
491 	if (!(rdev->flags & RADEON_IS_AGP))
492 		radeon_gtt_location(rdev, &rdev->mc);
493 	radeon_update_bandwidth_info(rdev);
494 }
495 
496 void rv370_set_pcie_lanes(struct radeon_device *rdev, int lanes)
497 {
498 	uint32_t link_width_cntl, mask;
499 
500 	if (rdev->flags & RADEON_IS_IGP)
501 		return;
502 
503 	if (!(rdev->flags & RADEON_IS_PCIE))
504 		return;
505 
506 	/* FIXME wait for idle */
507 
508 	switch (lanes) {
509 	case 0:
510 		mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
511 		break;
512 	case 1:
513 		mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
514 		break;
515 	case 2:
516 		mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
517 		break;
518 	case 4:
519 		mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
520 		break;
521 	case 8:
522 		mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
523 		break;
524 	case 12:
525 		mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
526 		break;
527 	case 16:
528 	default:
529 		mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
530 		break;
531 	}
532 
533 	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
534 
535 	if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
536 	    (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))
537 		return;
538 
539 	link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK |
540 			     RADEON_PCIE_LC_RECONFIG_NOW |
541 			     RADEON_PCIE_LC_RECONFIG_LATER |
542 			     RADEON_PCIE_LC_SHORT_RECONFIG_EN);
543 	link_width_cntl |= mask;
544 	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
545 	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, (link_width_cntl |
546 						     RADEON_PCIE_LC_RECONFIG_NOW));
547 
548 	/* wait for lane set to complete */
549 	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
550 	while (link_width_cntl == 0xffffffff)
551 		link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
552 
553 }
554 
555 int rv370_get_pcie_lanes(struct radeon_device *rdev)
556 {
557 	u32 link_width_cntl;
558 
559 	if (rdev->flags & RADEON_IS_IGP)
560 		return 0;
561 
562 	if (!(rdev->flags & RADEON_IS_PCIE))
563 		return 0;
564 
565 	/* FIXME wait for idle */
566 
567 	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
568 
569 	switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) {
570 	case RADEON_PCIE_LC_LINK_WIDTH_X0:
571 		return 0;
572 	case RADEON_PCIE_LC_LINK_WIDTH_X1:
573 		return 1;
574 	case RADEON_PCIE_LC_LINK_WIDTH_X2:
575 		return 2;
576 	case RADEON_PCIE_LC_LINK_WIDTH_X4:
577 		return 4;
578 	case RADEON_PCIE_LC_LINK_WIDTH_X8:
579 		return 8;
580 	case RADEON_PCIE_LC_LINK_WIDTH_X16:
581 	default:
582 		return 16;
583 	}
584 }
585 
586 #if defined(CONFIG_DEBUG_FS)
587 static int rv370_debugfs_pcie_gart_info(struct seq_file *m, void *data)
588 {
589 	struct drm_info_node *node = (struct drm_info_node *) m->private;
590 	struct drm_device *dev = node->minor->dev;
591 	struct radeon_device *rdev = dev->dev_private;
592 	uint32_t tmp;
593 
594 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
595 	seq_printf(m, "PCIE_TX_GART_CNTL 0x%08x\n", tmp);
596 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_BASE);
597 	seq_printf(m, "PCIE_TX_GART_BASE 0x%08x\n", tmp);
598 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_LO);
599 	seq_printf(m, "PCIE_TX_GART_START_LO 0x%08x\n", tmp);
600 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_HI);
601 	seq_printf(m, "PCIE_TX_GART_START_HI 0x%08x\n", tmp);
602 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_LO);
603 	seq_printf(m, "PCIE_TX_GART_END_LO 0x%08x\n", tmp);
604 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_HI);
605 	seq_printf(m, "PCIE_TX_GART_END_HI 0x%08x\n", tmp);
606 	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_ERROR);
607 	seq_printf(m, "PCIE_TX_GART_ERROR 0x%08x\n", tmp);
608 	return 0;
609 }
610 
611 static struct drm_info_list rv370_pcie_gart_info_list[] = {
612 	{"rv370_pcie_gart_info", rv370_debugfs_pcie_gart_info, 0, NULL},
613 };
614 #endif
615 
616 static int rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
617 {
618 #if defined(CONFIG_DEBUG_FS)
619 	return radeon_debugfs_add_files(rdev, rv370_pcie_gart_info_list, 1);
620 #else
621 	return 0;
622 #endif
623 }
624 
625 static int r300_packet0_check(struct radeon_cs_parser *p,
626 		struct radeon_cs_packet *pkt,
627 		unsigned idx, unsigned reg)
628 {
629 	struct radeon_bo_list *reloc;
630 	struct r100_cs_track *track;
631 	volatile uint32_t *ib;
632 	uint32_t tmp, tile_flags = 0;
633 	unsigned i;
634 	int r;
635 	u32 idx_value;
636 
637 	ib = p->ib.ptr;
638 	track = (struct r100_cs_track *)p->track;
639 	idx_value = radeon_get_ib_value(p, idx);
640 
641 	switch(reg) {
642 	case AVIVO_D1MODE_VLINE_START_END:
643 	case RADEON_CRTC_GUI_TRIG_VLINE:
644 		r = r100_cs_packet_parse_vline(p);
645 		if (r) {
646 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
647 					idx, reg);
648 			radeon_cs_dump_packet(p, pkt);
649 			return r;
650 		}
651 		break;
652 	case RADEON_DST_PITCH_OFFSET:
653 	case RADEON_SRC_PITCH_OFFSET:
654 		r = r100_reloc_pitch_offset(p, pkt, idx, reg);
655 		if (r)
656 			return r;
657 		break;
658 	case R300_RB3D_COLOROFFSET0:
659 	case R300_RB3D_COLOROFFSET1:
660 	case R300_RB3D_COLOROFFSET2:
661 	case R300_RB3D_COLOROFFSET3:
662 		i = (reg - R300_RB3D_COLOROFFSET0) >> 2;
663 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
664 		if (r) {
665 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
666 					idx, reg);
667 			radeon_cs_dump_packet(p, pkt);
668 			return r;
669 		}
670 		track->cb[i].robj = reloc->robj;
671 		track->cb[i].offset = idx_value;
672 		track->cb_dirty = true;
673 		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
674 		break;
675 	case R300_ZB_DEPTHOFFSET:
676 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
677 		if (r) {
678 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
679 					idx, reg);
680 			radeon_cs_dump_packet(p, pkt);
681 			return r;
682 		}
683 		track->zb.robj = reloc->robj;
684 		track->zb.offset = idx_value;
685 		track->zb_dirty = true;
686 		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
687 		break;
688 	case R300_TX_OFFSET_0:
689 	case R300_TX_OFFSET_0+4:
690 	case R300_TX_OFFSET_0+8:
691 	case R300_TX_OFFSET_0+12:
692 	case R300_TX_OFFSET_0+16:
693 	case R300_TX_OFFSET_0+20:
694 	case R300_TX_OFFSET_0+24:
695 	case R300_TX_OFFSET_0+28:
696 	case R300_TX_OFFSET_0+32:
697 	case R300_TX_OFFSET_0+36:
698 	case R300_TX_OFFSET_0+40:
699 	case R300_TX_OFFSET_0+44:
700 	case R300_TX_OFFSET_0+48:
701 	case R300_TX_OFFSET_0+52:
702 	case R300_TX_OFFSET_0+56:
703 	case R300_TX_OFFSET_0+60:
704 		i = (reg - R300_TX_OFFSET_0) >> 2;
705 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
706 		if (r) {
707 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
708 					idx, reg);
709 			radeon_cs_dump_packet(p, pkt);
710 			return r;
711 		}
712 
713 		if (p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) {
714 			ib[idx] = (idx_value & 31) | /* keep the 1st 5 bits */
715 				  ((idx_value & ~31) + (u32)reloc->gpu_offset);
716 		} else {
717 			if (reloc->tiling_flags & RADEON_TILING_MACRO)
718 				tile_flags |= R300_TXO_MACRO_TILE;
719 			if (reloc->tiling_flags & RADEON_TILING_MICRO)
720 				tile_flags |= R300_TXO_MICRO_TILE;
721 			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
722 				tile_flags |= R300_TXO_MICRO_TILE_SQUARE;
723 
724 			tmp = idx_value + ((u32)reloc->gpu_offset);
725 			tmp |= tile_flags;
726 			ib[idx] = tmp;
727 		}
728 		track->textures[i].robj = reloc->robj;
729 		track->tex_dirty = true;
730 		break;
731 	/* Tracked registers */
732 	case 0x2084:
733 		/* VAP_VF_CNTL */
734 		track->vap_vf_cntl = idx_value;
735 		break;
736 	case 0x20B4:
737 		/* VAP_VTX_SIZE */
738 		track->vtx_size = idx_value & 0x7F;
739 		break;
740 	case 0x2134:
741 		/* VAP_VF_MAX_VTX_INDX */
742 		track->max_indx = idx_value & 0x00FFFFFFUL;
743 		break;
744 	case 0x2088:
745 		/* VAP_ALT_NUM_VERTICES - only valid on r500 */
746 		if (p->rdev->family < CHIP_RV515)
747 			goto fail;
748 		track->vap_alt_nverts = idx_value & 0xFFFFFF;
749 		break;
750 	case 0x43E4:
751 		/* SC_SCISSOR1 */
752 		track->maxy = ((idx_value >> 13) & 0x1FFF) + 1;
753 		if (p->rdev->family < CHIP_RV515) {
754 			track->maxy -= 1440;
755 		}
756 		track->cb_dirty = true;
757 		track->zb_dirty = true;
758 		break;
759 	case 0x4E00:
760 		/* RB3D_CCTL */
761 		if ((idx_value & (1 << 10)) && /* CMASK_ENABLE */
762 		    p->rdev->cmask_filp != p->filp) {
763 			DRM_ERROR("Invalid RB3D_CCTL: Cannot enable CMASK.\n");
764 			return -EINVAL;
765 		}
766 		track->num_cb = ((idx_value >> 5) & 0x3) + 1;
767 		track->cb_dirty = true;
768 		break;
769 	case 0x4E38:
770 	case 0x4E3C:
771 	case 0x4E40:
772 	case 0x4E44:
773 		/* RB3D_COLORPITCH0 */
774 		/* RB3D_COLORPITCH1 */
775 		/* RB3D_COLORPITCH2 */
776 		/* RB3D_COLORPITCH3 */
777 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
778 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
779 			if (r) {
780 				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
781 					  idx, reg);
782 				radeon_cs_dump_packet(p, pkt);
783 				return r;
784 			}
785 
786 			if (reloc->tiling_flags & RADEON_TILING_MACRO)
787 				tile_flags |= R300_COLOR_TILE_ENABLE;
788 			if (reloc->tiling_flags & RADEON_TILING_MICRO)
789 				tile_flags |= R300_COLOR_MICROTILE_ENABLE;
790 			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
791 				tile_flags |= R300_COLOR_MICROTILE_SQUARE_ENABLE;
792 
793 			tmp = idx_value & ~(0x7 << 16);
794 			tmp |= tile_flags;
795 			ib[idx] = tmp;
796 		}
797 		i = (reg - 0x4E38) >> 2;
798 		track->cb[i].pitch = idx_value & 0x3FFE;
799 		switch (((idx_value >> 21) & 0xF)) {
800 		case 9:
801 		case 11:
802 		case 12:
803 			track->cb[i].cpp = 1;
804 			break;
805 		case 3:
806 		case 4:
807 		case 13:
808 		case 15:
809 			track->cb[i].cpp = 2;
810 			break;
811 		case 5:
812 			if (p->rdev->family < CHIP_RV515) {
813 				DRM_ERROR("Invalid color buffer format (%d)!\n",
814 					  ((idx_value >> 21) & 0xF));
815 				return -EINVAL;
816 			}
817 			/* Pass through. */
818 		case 6:
819 			track->cb[i].cpp = 4;
820 			break;
821 		case 10:
822 			track->cb[i].cpp = 8;
823 			break;
824 		case 7:
825 			track->cb[i].cpp = 16;
826 			break;
827 		default:
828 			DRM_ERROR("Invalid color buffer format (%d) !\n",
829 				  ((idx_value >> 21) & 0xF));
830 			return -EINVAL;
831 		}
832 		track->cb_dirty = true;
833 		break;
834 	case 0x4F00:
835 		/* ZB_CNTL */
836 		if (idx_value & 2) {
837 			track->z_enabled = true;
838 		} else {
839 			track->z_enabled = false;
840 		}
841 		track->zb_dirty = true;
842 		break;
843 	case 0x4F10:
844 		/* ZB_FORMAT */
845 		switch ((idx_value & 0xF)) {
846 		case 0:
847 		case 1:
848 			track->zb.cpp = 2;
849 			break;
850 		case 2:
851 			track->zb.cpp = 4;
852 			break;
853 		default:
854 			DRM_ERROR("Invalid z buffer format (%d) !\n",
855 				  (idx_value & 0xF));
856 			return -EINVAL;
857 		}
858 		track->zb_dirty = true;
859 		break;
860 	case 0x4F24:
861 		/* ZB_DEPTHPITCH */
862 		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
863 			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
864 			if (r) {
865 				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
866 					  idx, reg);
867 				radeon_cs_dump_packet(p, pkt);
868 				return r;
869 			}
870 
871 			if (reloc->tiling_flags & RADEON_TILING_MACRO)
872 				tile_flags |= R300_DEPTHMACROTILE_ENABLE;
873 			if (reloc->tiling_flags & RADEON_TILING_MICRO)
874 				tile_flags |= R300_DEPTHMICROTILE_TILED;
875 			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
876 				tile_flags |= R300_DEPTHMICROTILE_TILED_SQUARE;
877 
878 			tmp = idx_value & ~(0x7 << 16);
879 			tmp |= tile_flags;
880 			ib[idx] = tmp;
881 		}
882 		track->zb.pitch = idx_value & 0x3FFC;
883 		track->zb_dirty = true;
884 		break;
885 	case 0x4104:
886 		/* TX_ENABLE */
887 		for (i = 0; i < 16; i++) {
888 			bool enabled;
889 
890 			enabled = !!(idx_value & (1 << i));
891 			track->textures[i].enabled = enabled;
892 		}
893 		track->tex_dirty = true;
894 		break;
895 	case 0x44C0:
896 	case 0x44C4:
897 	case 0x44C8:
898 	case 0x44CC:
899 	case 0x44D0:
900 	case 0x44D4:
901 	case 0x44D8:
902 	case 0x44DC:
903 	case 0x44E0:
904 	case 0x44E4:
905 	case 0x44E8:
906 	case 0x44EC:
907 	case 0x44F0:
908 	case 0x44F4:
909 	case 0x44F8:
910 	case 0x44FC:
911 		/* TX_FORMAT1_[0-15] */
912 		i = (reg - 0x44C0) >> 2;
913 		tmp = (idx_value >> 25) & 0x3;
914 		track->textures[i].tex_coord_type = tmp;
915 		switch ((idx_value & 0x1F)) {
916 		case R300_TX_FORMAT_X8:
917 		case R300_TX_FORMAT_Y4X4:
918 		case R300_TX_FORMAT_Z3Y3X2:
919 			track->textures[i].cpp = 1;
920 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
921 			break;
922 		case R300_TX_FORMAT_X16:
923 		case R300_TX_FORMAT_FL_I16:
924 		case R300_TX_FORMAT_Y8X8:
925 		case R300_TX_FORMAT_Z5Y6X5:
926 		case R300_TX_FORMAT_Z6Y5X5:
927 		case R300_TX_FORMAT_W4Z4Y4X4:
928 		case R300_TX_FORMAT_W1Z5Y5X5:
929 		case R300_TX_FORMAT_D3DMFT_CxV8U8:
930 		case R300_TX_FORMAT_B8G8_B8G8:
931 		case R300_TX_FORMAT_G8R8_G8B8:
932 			track->textures[i].cpp = 2;
933 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
934 			break;
935 		case R300_TX_FORMAT_Y16X16:
936 		case R300_TX_FORMAT_FL_I16A16:
937 		case R300_TX_FORMAT_Z11Y11X10:
938 		case R300_TX_FORMAT_Z10Y11X11:
939 		case R300_TX_FORMAT_W8Z8Y8X8:
940 		case R300_TX_FORMAT_W2Z10Y10X10:
941 		case 0x17:
942 		case R300_TX_FORMAT_FL_I32:
943 		case 0x1e:
944 			track->textures[i].cpp = 4;
945 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
946 			break;
947 		case R300_TX_FORMAT_W16Z16Y16X16:
948 		case R300_TX_FORMAT_FL_R16G16B16A16:
949 		case R300_TX_FORMAT_FL_I32A32:
950 			track->textures[i].cpp = 8;
951 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
952 			break;
953 		case R300_TX_FORMAT_FL_R32G32B32A32:
954 			track->textures[i].cpp = 16;
955 			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
956 			break;
957 		case R300_TX_FORMAT_DXT1:
958 			track->textures[i].cpp = 1;
959 			track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
960 			break;
961 		case R300_TX_FORMAT_ATI2N:
962 			if (p->rdev->family < CHIP_R420) {
963 				DRM_ERROR("Invalid texture format %u\n",
964 					  (idx_value & 0x1F));
965 				return -EINVAL;
966 			}
967 			/* The same rules apply as for DXT3/5. */
968 			/* Pass through. */
969 		case R300_TX_FORMAT_DXT3:
970 		case R300_TX_FORMAT_DXT5:
971 			track->textures[i].cpp = 1;
972 			track->textures[i].compress_format = R100_TRACK_COMP_DXT35;
973 			break;
974 		default:
975 			DRM_ERROR("Invalid texture format %u\n",
976 				  (idx_value & 0x1F));
977 			return -EINVAL;
978 		}
979 		track->tex_dirty = true;
980 		break;
981 	case 0x4400:
982 	case 0x4404:
983 	case 0x4408:
984 	case 0x440C:
985 	case 0x4410:
986 	case 0x4414:
987 	case 0x4418:
988 	case 0x441C:
989 	case 0x4420:
990 	case 0x4424:
991 	case 0x4428:
992 	case 0x442C:
993 	case 0x4430:
994 	case 0x4434:
995 	case 0x4438:
996 	case 0x443C:
997 		/* TX_FILTER0_[0-15] */
998 		i = (reg - 0x4400) >> 2;
999 		tmp = idx_value & 0x7;
1000 		if (tmp == 2 || tmp == 4 || tmp == 6) {
1001 			track->textures[i].roundup_w = false;
1002 		}
1003 		tmp = (idx_value >> 3) & 0x7;
1004 		if (tmp == 2 || tmp == 4 || tmp == 6) {
1005 			track->textures[i].roundup_h = false;
1006 		}
1007 		track->tex_dirty = true;
1008 		break;
1009 	case 0x4500:
1010 	case 0x4504:
1011 	case 0x4508:
1012 	case 0x450C:
1013 	case 0x4510:
1014 	case 0x4514:
1015 	case 0x4518:
1016 	case 0x451C:
1017 	case 0x4520:
1018 	case 0x4524:
1019 	case 0x4528:
1020 	case 0x452C:
1021 	case 0x4530:
1022 	case 0x4534:
1023 	case 0x4538:
1024 	case 0x453C:
1025 		/* TX_FORMAT2_[0-15] */
1026 		i = (reg - 0x4500) >> 2;
1027 		tmp = idx_value & 0x3FFF;
1028 		track->textures[i].pitch = tmp + 1;
1029 		if (p->rdev->family >= CHIP_RV515) {
1030 			tmp = ((idx_value >> 15) & 1) << 11;
1031 			track->textures[i].width_11 = tmp;
1032 			tmp = ((idx_value >> 16) & 1) << 11;
1033 			track->textures[i].height_11 = tmp;
1034 
1035 			/* ATI1N */
1036 			if (idx_value & (1 << 14)) {
1037 				/* The same rules apply as for DXT1. */
1038 				track->textures[i].compress_format =
1039 					R100_TRACK_COMP_DXT1;
1040 			}
1041 		} else if (idx_value & (1 << 14)) {
1042 			DRM_ERROR("Forbidden bit TXFORMAT_MSB\n");
1043 			return -EINVAL;
1044 		}
1045 		track->tex_dirty = true;
1046 		break;
1047 	case 0x4480:
1048 	case 0x4484:
1049 	case 0x4488:
1050 	case 0x448C:
1051 	case 0x4490:
1052 	case 0x4494:
1053 	case 0x4498:
1054 	case 0x449C:
1055 	case 0x44A0:
1056 	case 0x44A4:
1057 	case 0x44A8:
1058 	case 0x44AC:
1059 	case 0x44B0:
1060 	case 0x44B4:
1061 	case 0x44B8:
1062 	case 0x44BC:
1063 		/* TX_FORMAT0_[0-15] */
1064 		i = (reg - 0x4480) >> 2;
1065 		tmp = idx_value & 0x7FF;
1066 		track->textures[i].width = tmp + 1;
1067 		tmp = (idx_value >> 11) & 0x7FF;
1068 		track->textures[i].height = tmp + 1;
1069 		tmp = (idx_value >> 26) & 0xF;
1070 		track->textures[i].num_levels = tmp;
1071 		tmp = idx_value & (1 << 31);
1072 		track->textures[i].use_pitch = !!tmp;
1073 		tmp = (idx_value >> 22) & 0xF;
1074 		track->textures[i].txdepth = tmp;
1075 		track->tex_dirty = true;
1076 		break;
1077 	case R300_ZB_ZPASS_ADDR:
1078 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1079 		if (r) {
1080 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1081 					idx, reg);
1082 			radeon_cs_dump_packet(p, pkt);
1083 			return r;
1084 		}
1085 		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1086 		break;
1087 	case 0x4e0c:
1088 		/* RB3D_COLOR_CHANNEL_MASK */
1089 		track->color_channel_mask = idx_value;
1090 		track->cb_dirty = true;
1091 		break;
1092 	case 0x43a4:
1093 		/* SC_HYPERZ_EN */
1094 		/* r300c emits this register - we need to disable hyperz for it
1095 		 * without complaining */
1096 		if (p->rdev->hyperz_filp != p->filp) {
1097 			if (idx_value & 0x1)
1098 				ib[idx] = idx_value & ~1;
1099 		}
1100 		break;
1101 	case 0x4f1c:
1102 		/* ZB_BW_CNTL */
1103 		track->zb_cb_clear = !!(idx_value & (1 << 5));
1104 		track->cb_dirty = true;
1105 		track->zb_dirty = true;
1106 		if (p->rdev->hyperz_filp != p->filp) {
1107 			if (idx_value & (R300_HIZ_ENABLE |
1108 					 R300_RD_COMP_ENABLE |
1109 					 R300_WR_COMP_ENABLE |
1110 					 R300_FAST_FILL_ENABLE))
1111 				goto fail;
1112 		}
1113 		break;
1114 	case 0x4e04:
1115 		/* RB3D_BLENDCNTL */
1116 		track->blend_read_enable = !!(idx_value & (1 << 2));
1117 		track->cb_dirty = true;
1118 		break;
1119 	case R300_RB3D_AARESOLVE_OFFSET:
1120 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1121 		if (r) {
1122 			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1123 				  idx, reg);
1124 			radeon_cs_dump_packet(p, pkt);
1125 			return r;
1126 		}
1127 		track->aa.robj = reloc->robj;
1128 		track->aa.offset = idx_value;
1129 		track->aa_dirty = true;
1130 		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1131 		break;
1132 	case R300_RB3D_AARESOLVE_PITCH:
1133 		track->aa.pitch = idx_value & 0x3FFE;
1134 		track->aa_dirty = true;
1135 		break;
1136 	case R300_RB3D_AARESOLVE_CTL:
1137 		track->aaresolve = idx_value & 0x1;
1138 		track->aa_dirty = true;
1139 		break;
1140 	case 0x4f30: /* ZB_MASK_OFFSET */
1141 	case 0x4f34: /* ZB_ZMASK_PITCH */
1142 	case 0x4f44: /* ZB_HIZ_OFFSET */
1143 	case 0x4f54: /* ZB_HIZ_PITCH */
1144 		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1145 			goto fail;
1146 		break;
1147 	case 0x4028:
1148 		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1149 			goto fail;
1150 		/* GB_Z_PEQ_CONFIG */
1151 		if (p->rdev->family >= CHIP_RV350)
1152 			break;
1153 		goto fail;
1154 		break;
1155 	case 0x4be8:
1156 		/* valid register only on RV530 */
1157 		if (p->rdev->family == CHIP_RV530)
1158 			break;
1159 		/* fallthrough do not move */
1160 	default:
1161 		goto fail;
1162 	}
1163 	return 0;
1164 fail:
1165 	pr_err("Forbidden register 0x%04X in cs at %d (val=%08x)\n",
1166 	       reg, idx, idx_value);
1167 	return -EINVAL;
1168 }
1169 
1170 static int r300_packet3_check(struct radeon_cs_parser *p,
1171 			      struct radeon_cs_packet *pkt)
1172 {
1173 	struct radeon_bo_list *reloc;
1174 	struct r100_cs_track *track;
1175 	volatile uint32_t *ib;
1176 	unsigned idx;
1177 	int r;
1178 
1179 	ib = p->ib.ptr;
1180 	idx = pkt->idx + 1;
1181 	track = (struct r100_cs_track *)p->track;
1182 	switch(pkt->opcode) {
1183 	case PACKET3_3D_LOAD_VBPNTR:
1184 		r = r100_packet3_load_vbpntr(p, pkt, idx);
1185 		if (r)
1186 			return r;
1187 		break;
1188 	case PACKET3_INDX_BUFFER:
1189 		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1190 		if (r) {
1191 			DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
1192 			radeon_cs_dump_packet(p, pkt);
1193 			return r;
1194 		}
1195 		ib[idx+1] = radeon_get_ib_value(p, idx + 1) + ((u32)reloc->gpu_offset);
1196 		r = r100_cs_track_check_pkt3_indx_buffer(p, pkt, reloc->robj);
1197 		if (r) {
1198 			return r;
1199 		}
1200 		break;
1201 	/* Draw packet */
1202 	case PACKET3_3D_DRAW_IMMD:
1203 		/* Number of dwords is vtx_size * (num_vertices - 1)
1204 		 * PRIM_WALK must be equal to 3 vertex data in embedded
1205 		 * in cmd stream */
1206 		if (((radeon_get_ib_value(p, idx + 1) >> 4) & 0x3) != 3) {
1207 			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1208 			return -EINVAL;
1209 		}
1210 		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1211 		track->immd_dwords = pkt->count - 1;
1212 		r = r100_cs_track_check(p->rdev, track);
1213 		if (r) {
1214 			return r;
1215 		}
1216 		break;
1217 	case PACKET3_3D_DRAW_IMMD_2:
1218 		/* Number of dwords is vtx_size * (num_vertices - 1)
1219 		 * PRIM_WALK must be equal to 3 vertex data in embedded
1220 		 * in cmd stream */
1221 		if (((radeon_get_ib_value(p, idx) >> 4) & 0x3) != 3) {
1222 			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1223 			return -EINVAL;
1224 		}
1225 		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1226 		track->immd_dwords = pkt->count;
1227 		r = r100_cs_track_check(p->rdev, track);
1228 		if (r) {
1229 			return r;
1230 		}
1231 		break;
1232 	case PACKET3_3D_DRAW_VBUF:
1233 		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1234 		r = r100_cs_track_check(p->rdev, track);
1235 		if (r) {
1236 			return r;
1237 		}
1238 		break;
1239 	case PACKET3_3D_DRAW_VBUF_2:
1240 		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1241 		r = r100_cs_track_check(p->rdev, track);
1242 		if (r) {
1243 			return r;
1244 		}
1245 		break;
1246 	case PACKET3_3D_DRAW_INDX:
1247 		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1248 		r = r100_cs_track_check(p->rdev, track);
1249 		if (r) {
1250 			return r;
1251 		}
1252 		break;
1253 	case PACKET3_3D_DRAW_INDX_2:
1254 		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1255 		r = r100_cs_track_check(p->rdev, track);
1256 		if (r) {
1257 			return r;
1258 		}
1259 		break;
1260 	case PACKET3_3D_CLEAR_HIZ:
1261 	case PACKET3_3D_CLEAR_ZMASK:
1262 		if (p->rdev->hyperz_filp != p->filp)
1263 			return -EINVAL;
1264 		break;
1265 	case PACKET3_3D_CLEAR_CMASK:
1266 		if (p->rdev->cmask_filp != p->filp)
1267 			return -EINVAL;
1268 		break;
1269 	case PACKET3_NOP:
1270 		break;
1271 	default:
1272 		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
1273 		return -EINVAL;
1274 	}
1275 	return 0;
1276 }
1277 
1278 int r300_cs_parse(struct radeon_cs_parser *p)
1279 {
1280 	struct radeon_cs_packet pkt;
1281 	struct r100_cs_track *track;
1282 	int r;
1283 
1284 	track = kzalloc(sizeof(*track), GFP_KERNEL);
1285 	if (track == NULL)
1286 		return -ENOMEM;
1287 	r100_cs_track_clear(p->rdev, track);
1288 	p->track = track;
1289 	do {
1290 		r = radeon_cs_packet_parse(p, &pkt, p->idx);
1291 		if (r) {
1292 			return r;
1293 		}
1294 		p->idx += pkt.count + 2;
1295 		switch (pkt.type) {
1296 		case RADEON_PACKET_TYPE0:
1297 			r = r100_cs_parse_packet0(p, &pkt,
1298 						  p->rdev->config.r300.reg_safe_bm,
1299 						  p->rdev->config.r300.reg_safe_bm_size,
1300 						  &r300_packet0_check);
1301 			break;
1302 		case RADEON_PACKET_TYPE2:
1303 			break;
1304 		case RADEON_PACKET_TYPE3:
1305 			r = r300_packet3_check(p, &pkt);
1306 			break;
1307 		default:
1308 			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
1309 			return -EINVAL;
1310 		}
1311 		if (r) {
1312 			return r;
1313 		}
1314 	} while (p->idx < p->chunk_ib->length_dw);
1315 	return 0;
1316 }
1317 
1318 void r300_set_reg_safe(struct radeon_device *rdev)
1319 {
1320 	rdev->config.r300.reg_safe_bm = r300_reg_safe_bm;
1321 	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r300_reg_safe_bm);
1322 }
1323 
1324 void r300_mc_program(struct radeon_device *rdev)
1325 {
1326 	struct r100_mc_save save;
1327 	int r;
1328 
1329 	r = r100_debugfs_mc_info_init(rdev);
1330 	if (r) {
1331 		dev_err(rdev->dev, "Failed to create r100_mc debugfs file.\n");
1332 	}
1333 
1334 	/* Stops all mc clients */
1335 	r100_mc_stop(rdev, &save);
1336 	if (rdev->flags & RADEON_IS_AGP) {
1337 		WREG32(R_00014C_MC_AGP_LOCATION,
1338 			S_00014C_MC_AGP_START(rdev->mc.gtt_start >> 16) |
1339 			S_00014C_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
1340 		WREG32(R_000170_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
1341 		WREG32(R_00015C_AGP_BASE_2,
1342 			upper_32_bits(rdev->mc.agp_base) & 0xff);
1343 	} else {
1344 		WREG32(R_00014C_MC_AGP_LOCATION, 0x0FFFFFFF);
1345 		WREG32(R_000170_AGP_BASE, 0);
1346 		WREG32(R_00015C_AGP_BASE_2, 0);
1347 	}
1348 	/* Wait for mc idle */
1349 	if (r300_mc_wait_for_idle(rdev))
1350 		DRM_INFO("Failed to wait MC idle before programming MC.\n");
1351 	/* Program MC, should be a 32bits limited address space */
1352 	WREG32(R_000148_MC_FB_LOCATION,
1353 		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
1354 		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
1355 	r100_mc_resume(rdev, &save);
1356 }
1357 
1358 void r300_clock_startup(struct radeon_device *rdev)
1359 {
1360 	u32 tmp;
1361 
1362 	if (radeon_dynclks != -1 && radeon_dynclks)
1363 		radeon_legacy_set_clock_gating(rdev, 1);
1364 	/* We need to force on some of the block */
1365 	tmp = RREG32_PLL(R_00000D_SCLK_CNTL);
1366 	tmp |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1);
1367 	if ((rdev->family == CHIP_RV350) || (rdev->family == CHIP_RV380))
1368 		tmp |= S_00000D_FORCE_VAP(1);
1369 	WREG32_PLL(R_00000D_SCLK_CNTL, tmp);
1370 }
1371 
1372 static int r300_startup(struct radeon_device *rdev)
1373 {
1374 	int r;
1375 
1376 	/* set common regs */
1377 	r100_set_common_regs(rdev);
1378 	/* program mc */
1379 	r300_mc_program(rdev);
1380 	/* Resume clock */
1381 	r300_clock_startup(rdev);
1382 	/* Initialize GPU configuration (# pipes, ...) */
1383 	r300_gpu_init(rdev);
1384 	/* Initialize GART (initialize after TTM so we can allocate
1385 	 * memory through TTM but finalize after TTM) */
1386 	if (rdev->flags & RADEON_IS_PCIE) {
1387 		r = rv370_pcie_gart_enable(rdev);
1388 		if (r)
1389 			return r;
1390 	}
1391 
1392 	if (rdev->family == CHIP_R300 ||
1393 	    rdev->family == CHIP_R350 ||
1394 	    rdev->family == CHIP_RV350)
1395 		r100_enable_bm(rdev);
1396 
1397 	if (rdev->flags & RADEON_IS_PCI) {
1398 		r = r100_pci_gart_enable(rdev);
1399 		if (r)
1400 			return r;
1401 	}
1402 
1403 	/* allocate wb buffer */
1404 	r = radeon_wb_init(rdev);
1405 	if (r)
1406 		return r;
1407 
1408 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1409 	if (r) {
1410 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1411 		return r;
1412 	}
1413 
1414 	/* Enable IRQ */
1415 	if (!rdev->irq.installed) {
1416 		r = radeon_irq_kms_init(rdev);
1417 		if (r)
1418 			return r;
1419 	}
1420 
1421 	r100_irq_set(rdev);
1422 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
1423 	/* 1M ring buffer */
1424 	r = r100_cp_init(rdev, 1024 * 1024);
1425 	if (r) {
1426 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
1427 		return r;
1428 	}
1429 
1430 	r = radeon_ib_pool_init(rdev);
1431 	if (r) {
1432 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1433 		return r;
1434 	}
1435 
1436 	return 0;
1437 }
1438 
1439 int r300_resume(struct radeon_device *rdev)
1440 {
1441 	int r;
1442 
1443 	/* Make sur GART are not working */
1444 	if (rdev->flags & RADEON_IS_PCIE)
1445 		rv370_pcie_gart_disable(rdev);
1446 	if (rdev->flags & RADEON_IS_PCI)
1447 		r100_pci_gart_disable(rdev);
1448 	/* Resume clock before doing reset */
1449 	r300_clock_startup(rdev);
1450 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1451 	if (radeon_asic_reset(rdev)) {
1452 		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1453 			RREG32(R_000E40_RBBM_STATUS),
1454 			RREG32(R_0007C0_CP_STAT));
1455 	}
1456 	/* post */
1457 	radeon_combios_asic_init(rdev->ddev);
1458 	/* Resume clock after posting */
1459 	r300_clock_startup(rdev);
1460 	/* Initialize surface registers */
1461 	radeon_surface_init(rdev);
1462 
1463 	rdev->accel_working = true;
1464 	r = r300_startup(rdev);
1465 	if (r) {
1466 		rdev->accel_working = false;
1467 	}
1468 	return r;
1469 }
1470 
1471 int r300_suspend(struct radeon_device *rdev)
1472 {
1473 	radeon_pm_suspend(rdev);
1474 	r100_cp_disable(rdev);
1475 	radeon_wb_disable(rdev);
1476 	r100_irq_disable(rdev);
1477 	if (rdev->flags & RADEON_IS_PCIE)
1478 		rv370_pcie_gart_disable(rdev);
1479 	if (rdev->flags & RADEON_IS_PCI)
1480 		r100_pci_gart_disable(rdev);
1481 	return 0;
1482 }
1483 
1484 void r300_fini(struct radeon_device *rdev)
1485 {
1486 	radeon_pm_fini(rdev);
1487 	r100_cp_fini(rdev);
1488 	radeon_wb_fini(rdev);
1489 	radeon_ib_pool_fini(rdev);
1490 	radeon_gem_fini(rdev);
1491 	if (rdev->flags & RADEON_IS_PCIE)
1492 		rv370_pcie_gart_fini(rdev);
1493 	if (rdev->flags & RADEON_IS_PCI)
1494 		r100_pci_gart_fini(rdev);
1495 	radeon_agp_fini(rdev);
1496 	radeon_irq_kms_fini(rdev);
1497 	radeon_fence_driver_fini(rdev);
1498 	radeon_bo_fini(rdev);
1499 	radeon_atombios_fini(rdev);
1500 	kfree(rdev->bios);
1501 	rdev->bios = NULL;
1502 }
1503 
1504 int r300_init(struct radeon_device *rdev)
1505 {
1506 	int r;
1507 
1508 	/* Disable VGA */
1509 	r100_vga_render_disable(rdev);
1510 	/* Initialize scratch registers */
1511 	radeon_scratch_init(rdev);
1512 	/* Initialize surface registers */
1513 	radeon_surface_init(rdev);
1514 	/* TODO: disable VGA need to use VGA request */
1515 	/* restore some register to sane defaults */
1516 	r100_restore_sanity(rdev);
1517 	/* BIOS*/
1518 	if (!radeon_get_bios(rdev)) {
1519 		if (ASIC_IS_AVIVO(rdev))
1520 			return -EINVAL;
1521 	}
1522 	if (rdev->is_atom_bios) {
1523 		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
1524 		return -EINVAL;
1525 	} else {
1526 		r = radeon_combios_init(rdev);
1527 		if (r)
1528 			return r;
1529 	}
1530 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1531 	if (radeon_asic_reset(rdev)) {
1532 		dev_warn(rdev->dev,
1533 			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1534 			RREG32(R_000E40_RBBM_STATUS),
1535 			RREG32(R_0007C0_CP_STAT));
1536 	}
1537 	/* check if cards are posted or not */
1538 	if (radeon_boot_test_post_card(rdev) == false)
1539 		return -EINVAL;
1540 	/* Set asic errata */
1541 	r300_errata(rdev);
1542 	/* Initialize clocks */
1543 	radeon_get_clock_info(rdev->ddev);
1544 	/* initialize AGP */
1545 	if (rdev->flags & RADEON_IS_AGP) {
1546 		r = radeon_agp_init(rdev);
1547 		if (r) {
1548 			radeon_agp_disable(rdev);
1549 		}
1550 	}
1551 	/* initialize memory controller */
1552 	r300_mc_init(rdev);
1553 	/* Fence driver */
1554 	r = radeon_fence_driver_init(rdev);
1555 	if (r)
1556 		return r;
1557 	/* Memory manager */
1558 	r = radeon_bo_init(rdev);
1559 	if (r)
1560 		return r;
1561 	if (rdev->flags & RADEON_IS_PCIE) {
1562 		r = rv370_pcie_gart_init(rdev);
1563 		if (r)
1564 			return r;
1565 	}
1566 	if (rdev->flags & RADEON_IS_PCI) {
1567 		r = r100_pci_gart_init(rdev);
1568 		if (r)
1569 			return r;
1570 	}
1571 	r300_set_reg_safe(rdev);
1572 
1573 	/* Initialize power management */
1574 	radeon_pm_init(rdev);
1575 
1576 	rdev->accel_working = true;
1577 	r = r300_startup(rdev);
1578 	if (r) {
1579 		/* Something went wrong with the accel init, so stop accel */
1580 		dev_err(rdev->dev, "Disabling GPU acceleration\n");
1581 		r100_cp_fini(rdev);
1582 		radeon_wb_fini(rdev);
1583 		radeon_ib_pool_fini(rdev);
1584 		radeon_irq_kms_fini(rdev);
1585 		if (rdev->flags & RADEON_IS_PCIE)
1586 			rv370_pcie_gart_fini(rdev);
1587 		if (rdev->flags & RADEON_IS_PCI)
1588 			r100_pci_gart_fini(rdev);
1589 		radeon_agp_fini(rdev);
1590 		rdev->accel_working = false;
1591 	}
1592 	return 0;
1593 }
1594