xref: /linux/drivers/gpu/drm/radeon/ni.c (revision b15ba51207e54245409d6f46e20dab36f906eed1)
1 /*
2  * Copyright 2010 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Alex Deucher
23  */
24 #include <linux/firmware.h>
25 #include <linux/platform_device.h>
26 #include <linux/slab.h>
27 #include <linux/module.h>
28 #include "drmP.h"
29 #include "radeon.h"
30 #include "radeon_asic.h"
31 #include "radeon_drm.h"
32 #include "nid.h"
33 #include "atom.h"
34 #include "ni_reg.h"
35 #include "cayman_blit_shaders.h"
36 
37 extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
38 extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
39 extern int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
40 extern void evergreen_mc_program(struct radeon_device *rdev);
41 extern void evergreen_irq_suspend(struct radeon_device *rdev);
42 extern int evergreen_mc_init(struct radeon_device *rdev);
43 extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
44 extern void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
45 
46 #define EVERGREEN_PFP_UCODE_SIZE 1120
47 #define EVERGREEN_PM4_UCODE_SIZE 1376
48 #define EVERGREEN_RLC_UCODE_SIZE 768
49 #define BTC_MC_UCODE_SIZE 6024
50 
51 #define CAYMAN_PFP_UCODE_SIZE 2176
52 #define CAYMAN_PM4_UCODE_SIZE 2176
53 #define CAYMAN_RLC_UCODE_SIZE 1024
54 #define CAYMAN_MC_UCODE_SIZE 6037
55 
56 /* Firmware Names */
57 MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
58 MODULE_FIRMWARE("radeon/BARTS_me.bin");
59 MODULE_FIRMWARE("radeon/BARTS_mc.bin");
60 MODULE_FIRMWARE("radeon/BTC_rlc.bin");
61 MODULE_FIRMWARE("radeon/TURKS_pfp.bin");
62 MODULE_FIRMWARE("radeon/TURKS_me.bin");
63 MODULE_FIRMWARE("radeon/TURKS_mc.bin");
64 MODULE_FIRMWARE("radeon/CAICOS_pfp.bin");
65 MODULE_FIRMWARE("radeon/CAICOS_me.bin");
66 MODULE_FIRMWARE("radeon/CAICOS_mc.bin");
67 MODULE_FIRMWARE("radeon/CAYMAN_pfp.bin");
68 MODULE_FIRMWARE("radeon/CAYMAN_me.bin");
69 MODULE_FIRMWARE("radeon/CAYMAN_mc.bin");
70 MODULE_FIRMWARE("radeon/CAYMAN_rlc.bin");
71 
72 #define BTC_IO_MC_REGS_SIZE 29
73 
74 static const u32 barts_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
75 	{0x00000077, 0xff010100},
76 	{0x00000078, 0x00000000},
77 	{0x00000079, 0x00001434},
78 	{0x0000007a, 0xcc08ec08},
79 	{0x0000007b, 0x00040000},
80 	{0x0000007c, 0x000080c0},
81 	{0x0000007d, 0x09000000},
82 	{0x0000007e, 0x00210404},
83 	{0x00000081, 0x08a8e800},
84 	{0x00000082, 0x00030444},
85 	{0x00000083, 0x00000000},
86 	{0x00000085, 0x00000001},
87 	{0x00000086, 0x00000002},
88 	{0x00000087, 0x48490000},
89 	{0x00000088, 0x20244647},
90 	{0x00000089, 0x00000005},
91 	{0x0000008b, 0x66030000},
92 	{0x0000008c, 0x00006603},
93 	{0x0000008d, 0x00000100},
94 	{0x0000008f, 0x00001c0a},
95 	{0x00000090, 0xff000001},
96 	{0x00000094, 0x00101101},
97 	{0x00000095, 0x00000fff},
98 	{0x00000096, 0x00116fff},
99 	{0x00000097, 0x60010000},
100 	{0x00000098, 0x10010000},
101 	{0x00000099, 0x00006000},
102 	{0x0000009a, 0x00001000},
103 	{0x0000009f, 0x00946a00}
104 };
105 
106 static const u32 turks_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
107 	{0x00000077, 0xff010100},
108 	{0x00000078, 0x00000000},
109 	{0x00000079, 0x00001434},
110 	{0x0000007a, 0xcc08ec08},
111 	{0x0000007b, 0x00040000},
112 	{0x0000007c, 0x000080c0},
113 	{0x0000007d, 0x09000000},
114 	{0x0000007e, 0x00210404},
115 	{0x00000081, 0x08a8e800},
116 	{0x00000082, 0x00030444},
117 	{0x00000083, 0x00000000},
118 	{0x00000085, 0x00000001},
119 	{0x00000086, 0x00000002},
120 	{0x00000087, 0x48490000},
121 	{0x00000088, 0x20244647},
122 	{0x00000089, 0x00000005},
123 	{0x0000008b, 0x66030000},
124 	{0x0000008c, 0x00006603},
125 	{0x0000008d, 0x00000100},
126 	{0x0000008f, 0x00001c0a},
127 	{0x00000090, 0xff000001},
128 	{0x00000094, 0x00101101},
129 	{0x00000095, 0x00000fff},
130 	{0x00000096, 0x00116fff},
131 	{0x00000097, 0x60010000},
132 	{0x00000098, 0x10010000},
133 	{0x00000099, 0x00006000},
134 	{0x0000009a, 0x00001000},
135 	{0x0000009f, 0x00936a00}
136 };
137 
138 static const u32 caicos_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
139 	{0x00000077, 0xff010100},
140 	{0x00000078, 0x00000000},
141 	{0x00000079, 0x00001434},
142 	{0x0000007a, 0xcc08ec08},
143 	{0x0000007b, 0x00040000},
144 	{0x0000007c, 0x000080c0},
145 	{0x0000007d, 0x09000000},
146 	{0x0000007e, 0x00210404},
147 	{0x00000081, 0x08a8e800},
148 	{0x00000082, 0x00030444},
149 	{0x00000083, 0x00000000},
150 	{0x00000085, 0x00000001},
151 	{0x00000086, 0x00000002},
152 	{0x00000087, 0x48490000},
153 	{0x00000088, 0x20244647},
154 	{0x00000089, 0x00000005},
155 	{0x0000008b, 0x66030000},
156 	{0x0000008c, 0x00006603},
157 	{0x0000008d, 0x00000100},
158 	{0x0000008f, 0x00001c0a},
159 	{0x00000090, 0xff000001},
160 	{0x00000094, 0x00101101},
161 	{0x00000095, 0x00000fff},
162 	{0x00000096, 0x00116fff},
163 	{0x00000097, 0x60010000},
164 	{0x00000098, 0x10010000},
165 	{0x00000099, 0x00006000},
166 	{0x0000009a, 0x00001000},
167 	{0x0000009f, 0x00916a00}
168 };
169 
170 static const u32 cayman_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
171 	{0x00000077, 0xff010100},
172 	{0x00000078, 0x00000000},
173 	{0x00000079, 0x00001434},
174 	{0x0000007a, 0xcc08ec08},
175 	{0x0000007b, 0x00040000},
176 	{0x0000007c, 0x000080c0},
177 	{0x0000007d, 0x09000000},
178 	{0x0000007e, 0x00210404},
179 	{0x00000081, 0x08a8e800},
180 	{0x00000082, 0x00030444},
181 	{0x00000083, 0x00000000},
182 	{0x00000085, 0x00000001},
183 	{0x00000086, 0x00000002},
184 	{0x00000087, 0x48490000},
185 	{0x00000088, 0x20244647},
186 	{0x00000089, 0x00000005},
187 	{0x0000008b, 0x66030000},
188 	{0x0000008c, 0x00006603},
189 	{0x0000008d, 0x00000100},
190 	{0x0000008f, 0x00001c0a},
191 	{0x00000090, 0xff000001},
192 	{0x00000094, 0x00101101},
193 	{0x00000095, 0x00000fff},
194 	{0x00000096, 0x00116fff},
195 	{0x00000097, 0x60010000},
196 	{0x00000098, 0x10010000},
197 	{0x00000099, 0x00006000},
198 	{0x0000009a, 0x00001000},
199 	{0x0000009f, 0x00976b00}
200 };
201 
202 int ni_mc_load_microcode(struct radeon_device *rdev)
203 {
204 	const __be32 *fw_data;
205 	u32 mem_type, running, blackout = 0;
206 	u32 *io_mc_regs;
207 	int i, ucode_size, regs_size;
208 
209 	if (!rdev->mc_fw)
210 		return -EINVAL;
211 
212 	switch (rdev->family) {
213 	case CHIP_BARTS:
214 		io_mc_regs = (u32 *)&barts_io_mc_regs;
215 		ucode_size = BTC_MC_UCODE_SIZE;
216 		regs_size = BTC_IO_MC_REGS_SIZE;
217 		break;
218 	case CHIP_TURKS:
219 		io_mc_regs = (u32 *)&turks_io_mc_regs;
220 		ucode_size = BTC_MC_UCODE_SIZE;
221 		regs_size = BTC_IO_MC_REGS_SIZE;
222 		break;
223 	case CHIP_CAICOS:
224 	default:
225 		io_mc_regs = (u32 *)&caicos_io_mc_regs;
226 		ucode_size = BTC_MC_UCODE_SIZE;
227 		regs_size = BTC_IO_MC_REGS_SIZE;
228 		break;
229 	case CHIP_CAYMAN:
230 		io_mc_regs = (u32 *)&cayman_io_mc_regs;
231 		ucode_size = CAYMAN_MC_UCODE_SIZE;
232 		regs_size = BTC_IO_MC_REGS_SIZE;
233 		break;
234 	}
235 
236 	mem_type = (RREG32(MC_SEQ_MISC0) & MC_SEQ_MISC0_GDDR5_MASK) >> MC_SEQ_MISC0_GDDR5_SHIFT;
237 	running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
238 
239 	if ((mem_type == MC_SEQ_MISC0_GDDR5_VALUE) && (running == 0)) {
240 		if (running) {
241 			blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
242 			WREG32(MC_SHARED_BLACKOUT_CNTL, 1);
243 		}
244 
245 		/* reset the engine and set to writable */
246 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
247 		WREG32(MC_SEQ_SUP_CNTL, 0x00000010);
248 
249 		/* load mc io regs */
250 		for (i = 0; i < regs_size; i++) {
251 			WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
252 			WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
253 		}
254 		/* load the MC ucode */
255 		fw_data = (const __be32 *)rdev->mc_fw->data;
256 		for (i = 0; i < ucode_size; i++)
257 			WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
258 
259 		/* put the engine back into the active state */
260 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
261 		WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
262 		WREG32(MC_SEQ_SUP_CNTL, 0x00000001);
263 
264 		/* wait for training to complete */
265 		for (i = 0; i < rdev->usec_timeout; i++) {
266 			if (RREG32(MC_IO_PAD_CNTL_D0) & MEM_FALL_OUT_CMD)
267 				break;
268 			udelay(1);
269 		}
270 
271 		if (running)
272 			WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
273 	}
274 
275 	return 0;
276 }
277 
278 int ni_init_microcode(struct radeon_device *rdev)
279 {
280 	struct platform_device *pdev;
281 	const char *chip_name;
282 	const char *rlc_chip_name;
283 	size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
284 	char fw_name[30];
285 	int err;
286 
287 	DRM_DEBUG("\n");
288 
289 	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
290 	err = IS_ERR(pdev);
291 	if (err) {
292 		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
293 		return -EINVAL;
294 	}
295 
296 	switch (rdev->family) {
297 	case CHIP_BARTS:
298 		chip_name = "BARTS";
299 		rlc_chip_name = "BTC";
300 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
301 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
302 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
303 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
304 		break;
305 	case CHIP_TURKS:
306 		chip_name = "TURKS";
307 		rlc_chip_name = "BTC";
308 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
309 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
310 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
311 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
312 		break;
313 	case CHIP_CAICOS:
314 		chip_name = "CAICOS";
315 		rlc_chip_name = "BTC";
316 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
317 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
318 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
319 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
320 		break;
321 	case CHIP_CAYMAN:
322 		chip_name = "CAYMAN";
323 		rlc_chip_name = "CAYMAN";
324 		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
325 		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
326 		rlc_req_size = CAYMAN_RLC_UCODE_SIZE * 4;
327 		mc_req_size = CAYMAN_MC_UCODE_SIZE * 4;
328 		break;
329 	default: BUG();
330 	}
331 
332 	DRM_INFO("Loading %s Microcode\n", chip_name);
333 
334 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
335 	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
336 	if (err)
337 		goto out;
338 	if (rdev->pfp_fw->size != pfp_req_size) {
339 		printk(KERN_ERR
340 		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
341 		       rdev->pfp_fw->size, fw_name);
342 		err = -EINVAL;
343 		goto out;
344 	}
345 
346 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
347 	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
348 	if (err)
349 		goto out;
350 	if (rdev->me_fw->size != me_req_size) {
351 		printk(KERN_ERR
352 		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
353 		       rdev->me_fw->size, fw_name);
354 		err = -EINVAL;
355 	}
356 
357 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
358 	err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
359 	if (err)
360 		goto out;
361 	if (rdev->rlc_fw->size != rlc_req_size) {
362 		printk(KERN_ERR
363 		       "ni_rlc: Bogus length %zu in firmware \"%s\"\n",
364 		       rdev->rlc_fw->size, fw_name);
365 		err = -EINVAL;
366 	}
367 
368 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
369 	err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
370 	if (err)
371 		goto out;
372 	if (rdev->mc_fw->size != mc_req_size) {
373 		printk(KERN_ERR
374 		       "ni_mc: Bogus length %zu in firmware \"%s\"\n",
375 		       rdev->mc_fw->size, fw_name);
376 		err = -EINVAL;
377 	}
378 out:
379 	platform_device_unregister(pdev);
380 
381 	if (err) {
382 		if (err != -EINVAL)
383 			printk(KERN_ERR
384 			       "ni_cp: Failed to load firmware \"%s\"\n",
385 			       fw_name);
386 		release_firmware(rdev->pfp_fw);
387 		rdev->pfp_fw = NULL;
388 		release_firmware(rdev->me_fw);
389 		rdev->me_fw = NULL;
390 		release_firmware(rdev->rlc_fw);
391 		rdev->rlc_fw = NULL;
392 		release_firmware(rdev->mc_fw);
393 		rdev->mc_fw = NULL;
394 	}
395 	return err;
396 }
397 
398 /*
399  * Core functions
400  */
401 static u32 cayman_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
402 					       u32 num_tile_pipes,
403 					       u32 num_backends_per_asic,
404 					       u32 *backend_disable_mask_per_asic,
405 					       u32 num_shader_engines)
406 {
407 	u32 backend_map = 0;
408 	u32 enabled_backends_mask = 0;
409 	u32 enabled_backends_count = 0;
410 	u32 num_backends_per_se;
411 	u32 cur_pipe;
412 	u32 swizzle_pipe[CAYMAN_MAX_PIPES];
413 	u32 cur_backend = 0;
414 	u32 i;
415 	bool force_no_swizzle;
416 
417 	/* force legal values */
418 	if (num_tile_pipes < 1)
419 		num_tile_pipes = 1;
420 	if (num_tile_pipes > rdev->config.cayman.max_tile_pipes)
421 		num_tile_pipes = rdev->config.cayman.max_tile_pipes;
422 	if (num_shader_engines < 1)
423 		num_shader_engines = 1;
424 	if (num_shader_engines > rdev->config.cayman.max_shader_engines)
425 		num_shader_engines = rdev->config.cayman.max_shader_engines;
426 	if (num_backends_per_asic < num_shader_engines)
427 		num_backends_per_asic = num_shader_engines;
428 	if (num_backends_per_asic > (rdev->config.cayman.max_backends_per_se * num_shader_engines))
429 		num_backends_per_asic = rdev->config.cayman.max_backends_per_se * num_shader_engines;
430 
431 	/* make sure we have the same number of backends per se */
432 	num_backends_per_asic = ALIGN(num_backends_per_asic, num_shader_engines);
433 	/* set up the number of backends per se */
434 	num_backends_per_se = num_backends_per_asic / num_shader_engines;
435 	if (num_backends_per_se > rdev->config.cayman.max_backends_per_se) {
436 		num_backends_per_se = rdev->config.cayman.max_backends_per_se;
437 		num_backends_per_asic = num_backends_per_se * num_shader_engines;
438 	}
439 
440 	/* create enable mask and count for enabled backends */
441 	for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
442 		if (((*backend_disable_mask_per_asic >> i) & 1) == 0) {
443 			enabled_backends_mask |= (1 << i);
444 			++enabled_backends_count;
445 		}
446 		if (enabled_backends_count == num_backends_per_asic)
447 			break;
448 	}
449 
450 	/* force the backends mask to match the current number of backends */
451 	if (enabled_backends_count != num_backends_per_asic) {
452 		u32 this_backend_enabled;
453 		u32 shader_engine;
454 		u32 backend_per_se;
455 
456 		enabled_backends_mask = 0;
457 		enabled_backends_count = 0;
458 		*backend_disable_mask_per_asic = CAYMAN_MAX_BACKENDS_MASK;
459 		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
460 			/* calc the current se */
461 			shader_engine = i / rdev->config.cayman.max_backends_per_se;
462 			/* calc the backend per se */
463 			backend_per_se = i % rdev->config.cayman.max_backends_per_se;
464 			/* default to not enabled */
465 			this_backend_enabled = 0;
466 			if ((shader_engine < num_shader_engines) &&
467 			    (backend_per_se < num_backends_per_se))
468 				this_backend_enabled = 1;
469 			if (this_backend_enabled) {
470 				enabled_backends_mask |= (1 << i);
471 				*backend_disable_mask_per_asic &= ~(1 << i);
472 				++enabled_backends_count;
473 			}
474 		}
475 	}
476 
477 
478 	memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * CAYMAN_MAX_PIPES);
479 	switch (rdev->family) {
480 	case CHIP_CAYMAN:
481 		force_no_swizzle = true;
482 		break;
483 	default:
484 		force_no_swizzle = false;
485 		break;
486 	}
487 	if (force_no_swizzle) {
488 		bool last_backend_enabled = false;
489 
490 		force_no_swizzle = false;
491 		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
492 			if (((enabled_backends_mask >> i) & 1) == 1) {
493 				if (last_backend_enabled)
494 					force_no_swizzle = true;
495 				last_backend_enabled = true;
496 			} else
497 				last_backend_enabled = false;
498 		}
499 	}
500 
501 	switch (num_tile_pipes) {
502 	case 1:
503 	case 3:
504 	case 5:
505 	case 7:
506 		DRM_ERROR("odd number of pipes!\n");
507 		break;
508 	case 2:
509 		swizzle_pipe[0] = 0;
510 		swizzle_pipe[1] = 1;
511 		break;
512 	case 4:
513 		if (force_no_swizzle) {
514 			swizzle_pipe[0] = 0;
515 			swizzle_pipe[1] = 1;
516 			swizzle_pipe[2] = 2;
517 			swizzle_pipe[3] = 3;
518 		} else {
519 			swizzle_pipe[0] = 0;
520 			swizzle_pipe[1] = 2;
521 			swizzle_pipe[2] = 1;
522 			swizzle_pipe[3] = 3;
523 		}
524 		break;
525 	case 6:
526 		if (force_no_swizzle) {
527 			swizzle_pipe[0] = 0;
528 			swizzle_pipe[1] = 1;
529 			swizzle_pipe[2] = 2;
530 			swizzle_pipe[3] = 3;
531 			swizzle_pipe[4] = 4;
532 			swizzle_pipe[5] = 5;
533 		} else {
534 			swizzle_pipe[0] = 0;
535 			swizzle_pipe[1] = 2;
536 			swizzle_pipe[2] = 4;
537 			swizzle_pipe[3] = 1;
538 			swizzle_pipe[4] = 3;
539 			swizzle_pipe[5] = 5;
540 		}
541 		break;
542 	case 8:
543 		if (force_no_swizzle) {
544 			swizzle_pipe[0] = 0;
545 			swizzle_pipe[1] = 1;
546 			swizzle_pipe[2] = 2;
547 			swizzle_pipe[3] = 3;
548 			swizzle_pipe[4] = 4;
549 			swizzle_pipe[5] = 5;
550 			swizzle_pipe[6] = 6;
551 			swizzle_pipe[7] = 7;
552 		} else {
553 			swizzle_pipe[0] = 0;
554 			swizzle_pipe[1] = 2;
555 			swizzle_pipe[2] = 4;
556 			swizzle_pipe[3] = 6;
557 			swizzle_pipe[4] = 1;
558 			swizzle_pipe[5] = 3;
559 			swizzle_pipe[6] = 5;
560 			swizzle_pipe[7] = 7;
561 		}
562 		break;
563 	}
564 
565 	for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
566 		while (((1 << cur_backend) & enabled_backends_mask) == 0)
567 			cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;
568 
569 		backend_map |= (((cur_backend & 0xf) << (swizzle_pipe[cur_pipe] * 4)));
570 
571 		cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;
572 	}
573 
574 	return backend_map;
575 }
576 
577 static u32 cayman_get_disable_mask_per_asic(struct radeon_device *rdev,
578 					    u32 disable_mask_per_se,
579 					    u32 max_disable_mask_per_se,
580 					    u32 num_shader_engines)
581 {
582 	u32 disable_field_width_per_se = r600_count_pipe_bits(disable_mask_per_se);
583 	u32 disable_mask_per_asic = disable_mask_per_se & max_disable_mask_per_se;
584 
585 	if (num_shader_engines == 1)
586 		return disable_mask_per_asic;
587 	else if (num_shader_engines == 2)
588 		return disable_mask_per_asic | (disable_mask_per_asic << disable_field_width_per_se);
589 	else
590 		return 0xffffffff;
591 }
592 
593 static void cayman_gpu_init(struct radeon_device *rdev)
594 {
595 	u32 cc_rb_backend_disable = 0;
596 	u32 cc_gc_shader_pipe_config;
597 	u32 gb_addr_config = 0;
598 	u32 mc_shared_chmap, mc_arb_ramcfg;
599 	u32 gb_backend_map;
600 	u32 cgts_tcc_disable;
601 	u32 sx_debug_1;
602 	u32 smx_dc_ctl0;
603 	u32 gc_user_shader_pipe_config;
604 	u32 gc_user_rb_backend_disable;
605 	u32 cgts_user_tcc_disable;
606 	u32 cgts_sm_ctrl_reg;
607 	u32 hdp_host_path_cntl;
608 	u32 tmp;
609 	int i, j;
610 
611 	switch (rdev->family) {
612 	case CHIP_CAYMAN:
613 	default:
614 		rdev->config.cayman.max_shader_engines = 2;
615 		rdev->config.cayman.max_pipes_per_simd = 4;
616 		rdev->config.cayman.max_tile_pipes = 8;
617 		rdev->config.cayman.max_simds_per_se = 12;
618 		rdev->config.cayman.max_backends_per_se = 4;
619 		rdev->config.cayman.max_texture_channel_caches = 8;
620 		rdev->config.cayman.max_gprs = 256;
621 		rdev->config.cayman.max_threads = 256;
622 		rdev->config.cayman.max_gs_threads = 32;
623 		rdev->config.cayman.max_stack_entries = 512;
624 		rdev->config.cayman.sx_num_of_sets = 8;
625 		rdev->config.cayman.sx_max_export_size = 256;
626 		rdev->config.cayman.sx_max_export_pos_size = 64;
627 		rdev->config.cayman.sx_max_export_smx_size = 192;
628 		rdev->config.cayman.max_hw_contexts = 8;
629 		rdev->config.cayman.sq_num_cf_insts = 2;
630 
631 		rdev->config.cayman.sc_prim_fifo_size = 0x100;
632 		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
633 		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
634 		break;
635 	}
636 
637 	/* Initialize HDP */
638 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
639 		WREG32((0x2c14 + j), 0x00000000);
640 		WREG32((0x2c18 + j), 0x00000000);
641 		WREG32((0x2c1c + j), 0x00000000);
642 		WREG32((0x2c20 + j), 0x00000000);
643 		WREG32((0x2c24 + j), 0x00000000);
644 	}
645 
646 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
647 
648 	evergreen_fix_pci_max_read_req_size(rdev);
649 
650 	mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
651 	mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
652 
653 	cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE);
654 	cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG);
655 	cgts_tcc_disable = 0xff000000;
656 	gc_user_rb_backend_disable = RREG32(GC_USER_RB_BACKEND_DISABLE);
657 	gc_user_shader_pipe_config = RREG32(GC_USER_SHADER_PIPE_CONFIG);
658 	cgts_user_tcc_disable = RREG32(CGTS_USER_TCC_DISABLE);
659 
660 	rdev->config.cayman.num_shader_engines = rdev->config.cayman.max_shader_engines;
661 	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_QD_PIPES_MASK) >> INACTIVE_QD_PIPES_SHIFT;
662 	rdev->config.cayman.num_shader_pipes_per_simd = r600_count_pipe_bits(tmp);
663 	rdev->config.cayman.num_tile_pipes = rdev->config.cayman.max_tile_pipes;
664 	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_SIMDS_MASK) >> INACTIVE_SIMDS_SHIFT;
665 	rdev->config.cayman.num_simds_per_se = r600_count_pipe_bits(tmp);
666 	tmp = ((~gc_user_rb_backend_disable) & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
667 	rdev->config.cayman.num_backends_per_se = r600_count_pipe_bits(tmp);
668 	tmp = (gc_user_rb_backend_disable & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
669 	rdev->config.cayman.backend_disable_mask_per_asic =
670 		cayman_get_disable_mask_per_asic(rdev, tmp, CAYMAN_MAX_BACKENDS_PER_SE_MASK,
671 						 rdev->config.cayman.num_shader_engines);
672 	rdev->config.cayman.backend_map =
673 		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
674 						    rdev->config.cayman.num_backends_per_se *
675 						    rdev->config.cayman.num_shader_engines,
676 						    &rdev->config.cayman.backend_disable_mask_per_asic,
677 						    rdev->config.cayman.num_shader_engines);
678 	tmp = ((~cgts_user_tcc_disable) & TCC_DISABLE_MASK) >> TCC_DISABLE_SHIFT;
679 	rdev->config.cayman.num_texture_channel_caches = r600_count_pipe_bits(tmp);
680 	tmp = (mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT;
681 	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
682 	if (rdev->config.cayman.mem_max_burst_length_bytes > 512)
683 		rdev->config.cayman.mem_max_burst_length_bytes = 512;
684 	tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
685 	rdev->config.cayman.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
686 	if (rdev->config.cayman.mem_row_size_in_kb > 4)
687 		rdev->config.cayman.mem_row_size_in_kb = 4;
688 	/* XXX use MC settings? */
689 	rdev->config.cayman.shader_engine_tile_size = 32;
690 	rdev->config.cayman.num_gpus = 1;
691 	rdev->config.cayman.multi_gpu_tile_size = 64;
692 
693 	//gb_addr_config = 0x02011003
694 #if 0
695 	gb_addr_config = RREG32(GB_ADDR_CONFIG);
696 #else
697 	gb_addr_config = 0;
698 	switch (rdev->config.cayman.num_tile_pipes) {
699 	case 1:
700 	default:
701 		gb_addr_config |= NUM_PIPES(0);
702 		break;
703 	case 2:
704 		gb_addr_config |= NUM_PIPES(1);
705 		break;
706 	case 4:
707 		gb_addr_config |= NUM_PIPES(2);
708 		break;
709 	case 8:
710 		gb_addr_config |= NUM_PIPES(3);
711 		break;
712 	}
713 
714 	tmp = (rdev->config.cayman.mem_max_burst_length_bytes / 256) - 1;
715 	gb_addr_config |= PIPE_INTERLEAVE_SIZE(tmp);
716 	gb_addr_config |= NUM_SHADER_ENGINES(rdev->config.cayman.num_shader_engines - 1);
717 	tmp = (rdev->config.cayman.shader_engine_tile_size / 16) - 1;
718 	gb_addr_config |= SHADER_ENGINE_TILE_SIZE(tmp);
719 	switch (rdev->config.cayman.num_gpus) {
720 	case 1:
721 	default:
722 		gb_addr_config |= NUM_GPUS(0);
723 		break;
724 	case 2:
725 		gb_addr_config |= NUM_GPUS(1);
726 		break;
727 	case 4:
728 		gb_addr_config |= NUM_GPUS(2);
729 		break;
730 	}
731 	switch (rdev->config.cayman.multi_gpu_tile_size) {
732 	case 16:
733 		gb_addr_config |= MULTI_GPU_TILE_SIZE(0);
734 		break;
735 	case 32:
736 	default:
737 		gb_addr_config |= MULTI_GPU_TILE_SIZE(1);
738 		break;
739 	case 64:
740 		gb_addr_config |= MULTI_GPU_TILE_SIZE(2);
741 		break;
742 	case 128:
743 		gb_addr_config |= MULTI_GPU_TILE_SIZE(3);
744 		break;
745 	}
746 	switch (rdev->config.cayman.mem_row_size_in_kb) {
747 	case 1:
748 	default:
749 		gb_addr_config |= ROW_SIZE(0);
750 		break;
751 	case 2:
752 		gb_addr_config |= ROW_SIZE(1);
753 		break;
754 	case 4:
755 		gb_addr_config |= ROW_SIZE(2);
756 		break;
757 	}
758 #endif
759 
760 	tmp = (gb_addr_config & NUM_PIPES_MASK) >> NUM_PIPES_SHIFT;
761 	rdev->config.cayman.num_tile_pipes = (1 << tmp);
762 	tmp = (gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT;
763 	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
764 	tmp = (gb_addr_config & NUM_SHADER_ENGINES_MASK) >> NUM_SHADER_ENGINES_SHIFT;
765 	rdev->config.cayman.num_shader_engines = tmp + 1;
766 	tmp = (gb_addr_config & NUM_GPUS_MASK) >> NUM_GPUS_SHIFT;
767 	rdev->config.cayman.num_gpus = tmp + 1;
768 	tmp = (gb_addr_config & MULTI_GPU_TILE_SIZE_MASK) >> MULTI_GPU_TILE_SIZE_SHIFT;
769 	rdev->config.cayman.multi_gpu_tile_size = 1 << tmp;
770 	tmp = (gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT;
771 	rdev->config.cayman.mem_row_size_in_kb = 1 << tmp;
772 
773 	//gb_backend_map = 0x76541032;
774 #if 0
775 	gb_backend_map = RREG32(GB_BACKEND_MAP);
776 #else
777 	gb_backend_map =
778 		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
779 						    rdev->config.cayman.num_backends_per_se *
780 						    rdev->config.cayman.num_shader_engines,
781 						    &rdev->config.cayman.backend_disable_mask_per_asic,
782 						    rdev->config.cayman.num_shader_engines);
783 #endif
784 	/* setup tiling info dword.  gb_addr_config is not adequate since it does
785 	 * not have bank info, so create a custom tiling dword.
786 	 * bits 3:0   num_pipes
787 	 * bits 7:4   num_banks
788 	 * bits 11:8  group_size
789 	 * bits 15:12 row_size
790 	 */
791 	rdev->config.cayman.tile_config = 0;
792 	switch (rdev->config.cayman.num_tile_pipes) {
793 	case 1:
794 	default:
795 		rdev->config.cayman.tile_config |= (0 << 0);
796 		break;
797 	case 2:
798 		rdev->config.cayman.tile_config |= (1 << 0);
799 		break;
800 	case 4:
801 		rdev->config.cayman.tile_config |= (2 << 0);
802 		break;
803 	case 8:
804 		rdev->config.cayman.tile_config |= (3 << 0);
805 		break;
806 	}
807 	rdev->config.cayman.tile_config |=
808 		((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
809 	rdev->config.cayman.tile_config |=
810 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
811 	rdev->config.cayman.tile_config |=
812 		((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;
813 
814 	rdev->config.cayman.backend_map = gb_backend_map;
815 	WREG32(GB_BACKEND_MAP, gb_backend_map);
816 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
817 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
818 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);
819 
820 	/* primary versions */
821 	WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable);
822 	WREG32(CC_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
823 	WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
824 
825 	WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);
826 	WREG32(CGTS_SYS_TCC_DISABLE, cgts_tcc_disable);
827 
828 	/* user versions */
829 	WREG32(GC_USER_RB_BACKEND_DISABLE, cc_rb_backend_disable);
830 	WREG32(GC_USER_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
831 	WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
832 
833 	WREG32(CGTS_USER_SYS_TCC_DISABLE, cgts_tcc_disable);
834 	WREG32(CGTS_USER_TCC_DISABLE, cgts_tcc_disable);
835 
836 	/* reprogram the shader complex */
837 	cgts_sm_ctrl_reg = RREG32(CGTS_SM_CTRL_REG);
838 	for (i = 0; i < 16; i++)
839 		WREG32(CGTS_SM_CTRL_REG, OVERRIDE);
840 	WREG32(CGTS_SM_CTRL_REG, cgts_sm_ctrl_reg);
841 
842 	/* set HW defaults for 3D engine */
843 	WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));
844 
845 	sx_debug_1 = RREG32(SX_DEBUG_1);
846 	sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
847 	WREG32(SX_DEBUG_1, sx_debug_1);
848 
849 	smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
850 	smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
851 	smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets);
852 	WREG32(SMX_DC_CTL0, smx_dc_ctl0);
853 
854 	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE);
855 
856 	/* need to be explicitly zero-ed */
857 	WREG32(VGT_OFFCHIP_LDS_BASE, 0);
858 	WREG32(SQ_LSTMP_RING_BASE, 0);
859 	WREG32(SQ_HSTMP_RING_BASE, 0);
860 	WREG32(SQ_ESTMP_RING_BASE, 0);
861 	WREG32(SQ_GSTMP_RING_BASE, 0);
862 	WREG32(SQ_VSTMP_RING_BASE, 0);
863 	WREG32(SQ_PSTMP_RING_BASE, 0);
864 
865 	WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO);
866 
867 	WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) |
868 					POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) |
869 					SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1)));
870 
871 	WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) |
872 				 SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) |
873 				 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size)));
874 
875 
876 	WREG32(VGT_NUM_INSTANCES, 1);
877 
878 	WREG32(CP_PERFMON_CNTL, 0);
879 
880 	WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) |
881 				  FETCH_FIFO_HIWATER(0x4) |
882 				  DONE_FIFO_HIWATER(0xe0) |
883 				  ALU_UPDATE_FIFO_HIWATER(0x8)));
884 
885 	WREG32(SQ_GPR_RESOURCE_MGMT_1, NUM_CLAUSE_TEMP_GPRS(4));
886 	WREG32(SQ_CONFIG, (VC_ENABLE |
887 			   EXPORT_SRC_C |
888 			   GFX_PRIO(0) |
889 			   CS1_PRIO(0) |
890 			   CS2_PRIO(1)));
891 	WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);
892 
893 	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
894 					  FORCE_EOV_MAX_REZ_CNT(255)));
895 
896 	WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
897 	       AUTO_INVLD_EN(ES_AND_GS_AUTO));
898 
899 	WREG32(VGT_GS_VERTEX_REUSE, 16);
900 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
901 
902 	WREG32(CB_PERF_CTR0_SEL_0, 0);
903 	WREG32(CB_PERF_CTR0_SEL_1, 0);
904 	WREG32(CB_PERF_CTR1_SEL_0, 0);
905 	WREG32(CB_PERF_CTR1_SEL_1, 0);
906 	WREG32(CB_PERF_CTR2_SEL_0, 0);
907 	WREG32(CB_PERF_CTR2_SEL_1, 0);
908 	WREG32(CB_PERF_CTR3_SEL_0, 0);
909 	WREG32(CB_PERF_CTR3_SEL_1, 0);
910 
911 	tmp = RREG32(HDP_MISC_CNTL);
912 	tmp |= HDP_FLUSH_INVALIDATE_CACHE;
913 	WREG32(HDP_MISC_CNTL, tmp);
914 
915 	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
916 	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
917 
918 	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
919 
920 	udelay(50);
921 }
922 
923 /*
924  * GART
925  */
926 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
927 {
928 	/* flush hdp cache */
929 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
930 
931 	/* bits 0-7 are the VM contexts0-7 */
932 	WREG32(VM_INVALIDATE_REQUEST, 1);
933 }
934 
935 int cayman_pcie_gart_enable(struct radeon_device *rdev)
936 {
937 	int r;
938 
939 	if (rdev->gart.robj == NULL) {
940 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
941 		return -EINVAL;
942 	}
943 	r = radeon_gart_table_vram_pin(rdev);
944 	if (r)
945 		return r;
946 	radeon_gart_restore(rdev);
947 	/* Setup TLB control */
948 	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB |
949 	       ENABLE_L1_FRAGMENT_PROCESSING |
950 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
951 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
952 	/* Setup L2 cache */
953 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
954 	       ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
955 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
956 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
957 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
958 	WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
959 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
960 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
961 	/* setup context0 */
962 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
963 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
964 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
965 	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
966 			(u32)(rdev->dummy_page.addr >> 12));
967 	WREG32(VM_CONTEXT0_CNTL2, 0);
968 	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
969 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
970 	/* disable context1-7 */
971 	WREG32(VM_CONTEXT1_CNTL2, 0);
972 	WREG32(VM_CONTEXT1_CNTL, 0);
973 
974 	cayman_pcie_gart_tlb_flush(rdev);
975 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
976 		 (unsigned)(rdev->mc.gtt_size >> 20),
977 		 (unsigned long long)rdev->gart.table_addr);
978 	rdev->gart.ready = true;
979 	return 0;
980 }
981 
982 void cayman_pcie_gart_disable(struct radeon_device *rdev)
983 {
984 	/* Disable all tables */
985 	WREG32(VM_CONTEXT0_CNTL, 0);
986 	WREG32(VM_CONTEXT1_CNTL, 0);
987 	/* Setup TLB control */
988 	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
989 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
990 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
991 	/* Setup L2 cache */
992 	WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
993 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
994 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
995 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
996 	WREG32(VM_L2_CNTL2, 0);
997 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
998 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
999 	radeon_gart_table_vram_unpin(rdev);
1000 }
1001 
1002 void cayman_pcie_gart_fini(struct radeon_device *rdev)
1003 {
1004 	cayman_pcie_gart_disable(rdev);
1005 	radeon_gart_table_vram_free(rdev);
1006 	radeon_gart_fini(rdev);
1007 }
1008 
1009 void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
1010 			      int ring, u32 cp_int_cntl)
1011 {
1012 	u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
1013 
1014 	WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
1015 	WREG32(CP_INT_CNTL, cp_int_cntl);
1016 }
1017 
1018 /*
1019  * CP.
1020  */
1021 void cayman_fence_ring_emit(struct radeon_device *rdev,
1022 			    struct radeon_fence *fence)
1023 {
1024 	struct radeon_ring *ring = &rdev->ring[fence->ring];
1025 	u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
1026 
1027 	/* flush read cache over gart */
1028 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
1029 	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
1030 	radeon_ring_write(ring, 0xFFFFFFFF);
1031 	radeon_ring_write(ring, 0);
1032 	radeon_ring_write(ring, 10); /* poll interval */
1033 	/* EVENT_WRITE_EOP - flush caches, send int */
1034 	radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
1035 	radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
1036 	radeon_ring_write(ring, addr & 0xffffffff);
1037 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
1038 	radeon_ring_write(ring, fence->seq);
1039 	radeon_ring_write(ring, 0);
1040 }
1041 
1042 static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
1043 {
1044 	if (enable)
1045 		WREG32(CP_ME_CNTL, 0);
1046 	else {
1047 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
1048 		WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
1049 		WREG32(SCRATCH_UMSK, 0);
1050 	}
1051 }
1052 
1053 static int cayman_cp_load_microcode(struct radeon_device *rdev)
1054 {
1055 	const __be32 *fw_data;
1056 	int i;
1057 
1058 	if (!rdev->me_fw || !rdev->pfp_fw)
1059 		return -EINVAL;
1060 
1061 	cayman_cp_enable(rdev, false);
1062 
1063 	fw_data = (const __be32 *)rdev->pfp_fw->data;
1064 	WREG32(CP_PFP_UCODE_ADDR, 0);
1065 	for (i = 0; i < CAYMAN_PFP_UCODE_SIZE; i++)
1066 		WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
1067 	WREG32(CP_PFP_UCODE_ADDR, 0);
1068 
1069 	fw_data = (const __be32 *)rdev->me_fw->data;
1070 	WREG32(CP_ME_RAM_WADDR, 0);
1071 	for (i = 0; i < CAYMAN_PM4_UCODE_SIZE; i++)
1072 		WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
1073 
1074 	WREG32(CP_PFP_UCODE_ADDR, 0);
1075 	WREG32(CP_ME_RAM_WADDR, 0);
1076 	WREG32(CP_ME_RAM_RADDR, 0);
1077 	return 0;
1078 }
1079 
1080 static int cayman_cp_start(struct radeon_device *rdev)
1081 {
1082 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1083 	int r, i;
1084 
1085 	r = radeon_ring_lock(rdev, ring, 7);
1086 	if (r) {
1087 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1088 		return r;
1089 	}
1090 	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
1091 	radeon_ring_write(ring, 0x1);
1092 	radeon_ring_write(ring, 0x0);
1093 	radeon_ring_write(ring, rdev->config.cayman.max_hw_contexts - 1);
1094 	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1095 	radeon_ring_write(ring, 0);
1096 	radeon_ring_write(ring, 0);
1097 	radeon_ring_unlock_commit(rdev, ring);
1098 
1099 	cayman_cp_enable(rdev, true);
1100 
1101 	r = radeon_ring_lock(rdev, ring, cayman_default_size + 19);
1102 	if (r) {
1103 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1104 		return r;
1105 	}
1106 
1107 	/* setup clear context state */
1108 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1109 	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
1110 
1111 	for (i = 0; i < cayman_default_size; i++)
1112 		radeon_ring_write(ring, cayman_default_state[i]);
1113 
1114 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1115 	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
1116 
1117 	/* set clear context state */
1118 	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
1119 	radeon_ring_write(ring, 0);
1120 
1121 	/* SQ_VTX_BASE_VTX_LOC */
1122 	radeon_ring_write(ring, 0xc0026f00);
1123 	radeon_ring_write(ring, 0x00000000);
1124 	radeon_ring_write(ring, 0x00000000);
1125 	radeon_ring_write(ring, 0x00000000);
1126 
1127 	/* Clear consts */
1128 	radeon_ring_write(ring, 0xc0036f00);
1129 	radeon_ring_write(ring, 0x00000bc4);
1130 	radeon_ring_write(ring, 0xffffffff);
1131 	radeon_ring_write(ring, 0xffffffff);
1132 	radeon_ring_write(ring, 0xffffffff);
1133 
1134 	radeon_ring_write(ring, 0xc0026900);
1135 	radeon_ring_write(ring, 0x00000316);
1136 	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
1137 	radeon_ring_write(ring, 0x00000010); /*  */
1138 
1139 	radeon_ring_unlock_commit(rdev, ring);
1140 
1141 	/* XXX init other rings */
1142 
1143 	return 0;
1144 }
1145 
1146 static void cayman_cp_fini(struct radeon_device *rdev)
1147 {
1148 	cayman_cp_enable(rdev, false);
1149 	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1150 }
1151 
1152 int cayman_cp_resume(struct radeon_device *rdev)
1153 {
1154 	struct radeon_ring *ring;
1155 	u32 tmp;
1156 	u32 rb_bufsz;
1157 	int r;
1158 
1159 	/* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1160 	WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1161 				 SOFT_RESET_PA |
1162 				 SOFT_RESET_SH |
1163 				 SOFT_RESET_VGT |
1164 				 SOFT_RESET_SPI |
1165 				 SOFT_RESET_SX));
1166 	RREG32(GRBM_SOFT_RESET);
1167 	mdelay(15);
1168 	WREG32(GRBM_SOFT_RESET, 0);
1169 	RREG32(GRBM_SOFT_RESET);
1170 
1171 	WREG32(CP_SEM_WAIT_TIMER, 0x0);
1172 
1173 	/* Set the write pointer delay */
1174 	WREG32(CP_RB_WPTR_DELAY, 0);
1175 
1176 	WREG32(CP_DEBUG, (1 << 27));
1177 
1178 	/* ring 0 - compute and gfx */
1179 	/* Set ring buffer size */
1180 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1181 	rb_bufsz = drm_order(ring->ring_size / 8);
1182 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1183 #ifdef __BIG_ENDIAN
1184 	tmp |= BUF_SWAP_32BIT;
1185 #endif
1186 	WREG32(CP_RB0_CNTL, tmp);
1187 
1188 	/* Initialize the ring buffer's read and write pointers */
1189 	WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
1190 	ring->wptr = 0;
1191 	WREG32(CP_RB0_WPTR, ring->wptr);
1192 
1193 	/* set the wb address wether it's enabled or not */
1194 	WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
1195 	WREG32(CP_RB0_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
1196 	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1197 
1198 	if (rdev->wb.enabled)
1199 		WREG32(SCRATCH_UMSK, 0xff);
1200 	else {
1201 		tmp |= RB_NO_UPDATE;
1202 		WREG32(SCRATCH_UMSK, 0);
1203 	}
1204 
1205 	mdelay(1);
1206 	WREG32(CP_RB0_CNTL, tmp);
1207 
1208 	WREG32(CP_RB0_BASE, ring->gpu_addr >> 8);
1209 
1210 	ring->rptr = RREG32(CP_RB0_RPTR);
1211 
1212 	/* ring1  - compute only */
1213 	/* Set ring buffer size */
1214 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
1215 	rb_bufsz = drm_order(ring->ring_size / 8);
1216 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1217 #ifdef __BIG_ENDIAN
1218 	tmp |= BUF_SWAP_32BIT;
1219 #endif
1220 	WREG32(CP_RB1_CNTL, tmp);
1221 
1222 	/* Initialize the ring buffer's read and write pointers */
1223 	WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
1224 	ring->wptr = 0;
1225 	WREG32(CP_RB1_WPTR, ring->wptr);
1226 
1227 	/* set the wb address wether it's enabled or not */
1228 	WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
1229 	WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFF);
1230 
1231 	mdelay(1);
1232 	WREG32(CP_RB1_CNTL, tmp);
1233 
1234 	WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);
1235 
1236 	ring->rptr = RREG32(CP_RB1_RPTR);
1237 
1238 	/* ring2 - compute only */
1239 	/* Set ring buffer size */
1240 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
1241 	rb_bufsz = drm_order(ring->ring_size / 8);
1242 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1243 #ifdef __BIG_ENDIAN
1244 	tmp |= BUF_SWAP_32BIT;
1245 #endif
1246 	WREG32(CP_RB2_CNTL, tmp);
1247 
1248 	/* Initialize the ring buffer's read and write pointers */
1249 	WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
1250 	ring->wptr = 0;
1251 	WREG32(CP_RB2_WPTR, ring->wptr);
1252 
1253 	/* set the wb address wether it's enabled or not */
1254 	WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
1255 	WREG32(CP_RB2_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFF);
1256 
1257 	mdelay(1);
1258 	WREG32(CP_RB2_CNTL, tmp);
1259 
1260 	WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);
1261 
1262 	ring->rptr = RREG32(CP_RB2_RPTR);
1263 
1264 	/* start the rings */
1265 	cayman_cp_start(rdev);
1266 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
1267 	rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1268 	rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1269 	/* this only test cp0 */
1270 	r = radeon_ring_test(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1271 	if (r) {
1272 		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1273 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1274 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1275 		return r;
1276 	}
1277 
1278 	return 0;
1279 }
1280 
1281 bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
1282 {
1283 	u32 srbm_status;
1284 	u32 grbm_status;
1285 	u32 grbm_status_se0, grbm_status_se1;
1286 	struct r100_gpu_lockup *lockup = &rdev->config.cayman.lockup;
1287 	int r;
1288 
1289 	srbm_status = RREG32(SRBM_STATUS);
1290 	grbm_status = RREG32(GRBM_STATUS);
1291 	grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
1292 	grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
1293 	if (!(grbm_status & GUI_ACTIVE)) {
1294 		r100_gpu_lockup_update(lockup, ring);
1295 		return false;
1296 	}
1297 	/* force CP activities */
1298 	r = radeon_ring_lock(rdev, ring, 2);
1299 	if (!r) {
1300 		/* PACKET2 NOP */
1301 		radeon_ring_write(ring, 0x80000000);
1302 		radeon_ring_write(ring, 0x80000000);
1303 		radeon_ring_unlock_commit(rdev, ring);
1304 	}
1305 	/* XXX deal with CP0,1,2 */
1306 	ring->rptr = RREG32(ring->rptr_reg);
1307 	return r100_gpu_cp_is_lockup(rdev, lockup, ring);
1308 }
1309 
1310 static int cayman_gpu_soft_reset(struct radeon_device *rdev)
1311 {
1312 	struct evergreen_mc_save save;
1313 	u32 grbm_reset = 0;
1314 
1315 	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
1316 		return 0;
1317 
1318 	dev_info(rdev->dev, "GPU softreset \n");
1319 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1320 		RREG32(GRBM_STATUS));
1321 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1322 		RREG32(GRBM_STATUS_SE0));
1323 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1324 		RREG32(GRBM_STATUS_SE1));
1325 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1326 		RREG32(SRBM_STATUS));
1327 	evergreen_mc_stop(rdev, &save);
1328 	if (evergreen_mc_wait_for_idle(rdev)) {
1329 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1330 	}
1331 	/* Disable CP parsing/prefetching */
1332 	WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
1333 
1334 	/* reset all the gfx blocks */
1335 	grbm_reset = (SOFT_RESET_CP |
1336 		      SOFT_RESET_CB |
1337 		      SOFT_RESET_DB |
1338 		      SOFT_RESET_GDS |
1339 		      SOFT_RESET_PA |
1340 		      SOFT_RESET_SC |
1341 		      SOFT_RESET_SPI |
1342 		      SOFT_RESET_SH |
1343 		      SOFT_RESET_SX |
1344 		      SOFT_RESET_TC |
1345 		      SOFT_RESET_TA |
1346 		      SOFT_RESET_VGT |
1347 		      SOFT_RESET_IA);
1348 
1349 	dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
1350 	WREG32(GRBM_SOFT_RESET, grbm_reset);
1351 	(void)RREG32(GRBM_SOFT_RESET);
1352 	udelay(50);
1353 	WREG32(GRBM_SOFT_RESET, 0);
1354 	(void)RREG32(GRBM_SOFT_RESET);
1355 	/* Wait a little for things to settle down */
1356 	udelay(50);
1357 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1358 		RREG32(GRBM_STATUS));
1359 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1360 		RREG32(GRBM_STATUS_SE0));
1361 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1362 		RREG32(GRBM_STATUS_SE1));
1363 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1364 		RREG32(SRBM_STATUS));
1365 	evergreen_mc_resume(rdev, &save);
1366 	return 0;
1367 }
1368 
1369 int cayman_asic_reset(struct radeon_device *rdev)
1370 {
1371 	return cayman_gpu_soft_reset(rdev);
1372 }
1373 
1374 static int cayman_startup(struct radeon_device *rdev)
1375 {
1376 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1377 	int r;
1378 
1379 	/* enable pcie gen2 link */
1380 	evergreen_pcie_gen2_enable(rdev);
1381 
1382 	if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
1383 		r = ni_init_microcode(rdev);
1384 		if (r) {
1385 			DRM_ERROR("Failed to load firmware!\n");
1386 			return r;
1387 		}
1388 	}
1389 	r = ni_mc_load_microcode(rdev);
1390 	if (r) {
1391 		DRM_ERROR("Failed to load MC firmware!\n");
1392 		return r;
1393 	}
1394 
1395 	r = r600_vram_scratch_init(rdev);
1396 	if (r)
1397 		return r;
1398 
1399 	evergreen_mc_program(rdev);
1400 	r = cayman_pcie_gart_enable(rdev);
1401 	if (r)
1402 		return r;
1403 	cayman_gpu_init(rdev);
1404 
1405 	r = evergreen_blit_init(rdev);
1406 	if (r) {
1407 		r600_blit_fini(rdev);
1408 		rdev->asic->copy = NULL;
1409 		dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
1410 	}
1411 
1412 	/* allocate wb buffer */
1413 	r = radeon_wb_init(rdev);
1414 	if (r)
1415 		return r;
1416 
1417 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1418 	if (r) {
1419 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1420 		return r;
1421 	}
1422 
1423 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
1424 	if (r) {
1425 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1426 		return r;
1427 	}
1428 
1429 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
1430 	if (r) {
1431 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1432 		return r;
1433 	}
1434 
1435 	/* Enable IRQ */
1436 	r = r600_irq_init(rdev);
1437 	if (r) {
1438 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
1439 		radeon_irq_kms_fini(rdev);
1440 		return r;
1441 	}
1442 	evergreen_irq_set(rdev);
1443 
1444 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
1445 			     CP_RB0_RPTR, CP_RB0_WPTR,
1446 			     0, 0xfffff, RADEON_CP_PACKET2);
1447 	if (r)
1448 		return r;
1449 	r = cayman_cp_load_microcode(rdev);
1450 	if (r)
1451 		return r;
1452 	r = cayman_cp_resume(rdev);
1453 	if (r)
1454 		return r;
1455 
1456 	r = radeon_ib_pool_start(rdev);
1457 	if (r)
1458 		return r;
1459 
1460 	r = r600_ib_test(rdev, RADEON_RING_TYPE_GFX_INDEX);
1461 	if (r) {
1462 		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
1463 		rdev->accel_working = false;
1464 		return r;
1465 	}
1466 
1467 	return 0;
1468 }
1469 
1470 int cayman_resume(struct radeon_device *rdev)
1471 {
1472 	int r;
1473 
1474 	/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
1475 	 * posting will perform necessary task to bring back GPU into good
1476 	 * shape.
1477 	 */
1478 	/* post card */
1479 	atom_asic_init(rdev->mode_info.atom_context);
1480 
1481 	rdev->accel_working = true;
1482 	r = cayman_startup(rdev);
1483 	if (r) {
1484 		DRM_ERROR("cayman startup failed on resume\n");
1485 		return r;
1486 	}
1487 	return r;
1488 }
1489 
1490 int cayman_suspend(struct radeon_device *rdev)
1491 {
1492 	/* FIXME: we should wait for ring to be empty */
1493 	radeon_ib_pool_suspend(rdev);
1494 	r600_blit_suspend(rdev);
1495 	cayman_cp_enable(rdev, false);
1496 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1497 	evergreen_irq_suspend(rdev);
1498 	radeon_wb_disable(rdev);
1499 	cayman_pcie_gart_disable(rdev);
1500 	return 0;
1501 }
1502 
1503 /* Plan is to move initialization in that function and use
1504  * helper function so that radeon_device_init pretty much
1505  * do nothing more than calling asic specific function. This
1506  * should also allow to remove a bunch of callback function
1507  * like vram_info.
1508  */
1509 int cayman_init(struct radeon_device *rdev)
1510 {
1511 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1512 	int r;
1513 
1514 	/* This don't do much */
1515 	r = radeon_gem_init(rdev);
1516 	if (r)
1517 		return r;
1518 	/* Read BIOS */
1519 	if (!radeon_get_bios(rdev)) {
1520 		if (ASIC_IS_AVIVO(rdev))
1521 			return -EINVAL;
1522 	}
1523 	/* Must be an ATOMBIOS */
1524 	if (!rdev->is_atom_bios) {
1525 		dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
1526 		return -EINVAL;
1527 	}
1528 	r = radeon_atombios_init(rdev);
1529 	if (r)
1530 		return r;
1531 
1532 	/* Post card if necessary */
1533 	if (!radeon_card_posted(rdev)) {
1534 		if (!rdev->bios) {
1535 			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
1536 			return -EINVAL;
1537 		}
1538 		DRM_INFO("GPU not posted. posting now...\n");
1539 		atom_asic_init(rdev->mode_info.atom_context);
1540 	}
1541 	/* Initialize scratch registers */
1542 	r600_scratch_init(rdev);
1543 	/* Initialize surface registers */
1544 	radeon_surface_init(rdev);
1545 	/* Initialize clocks */
1546 	radeon_get_clock_info(rdev->ddev);
1547 	/* Fence driver */
1548 	r = radeon_fence_driver_init(rdev);
1549 	if (r)
1550 		return r;
1551 	/* initialize memory controller */
1552 	r = evergreen_mc_init(rdev);
1553 	if (r)
1554 		return r;
1555 	/* Memory manager */
1556 	r = radeon_bo_init(rdev);
1557 	if (r)
1558 		return r;
1559 
1560 	r = radeon_irq_kms_init(rdev);
1561 	if (r)
1562 		return r;
1563 
1564 	ring->ring_obj = NULL;
1565 	r600_ring_init(rdev, ring, 1024 * 1024);
1566 
1567 	rdev->ih.ring_obj = NULL;
1568 	r600_ih_ring_init(rdev, 64 * 1024);
1569 
1570 	r = r600_pcie_gart_init(rdev);
1571 	if (r)
1572 		return r;
1573 
1574 	r = radeon_ib_pool_init(rdev);
1575 	rdev->accel_working = true;
1576 	if (r) {
1577 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1578 		rdev->accel_working = false;
1579 	}
1580 
1581 	r = cayman_startup(rdev);
1582 	if (r) {
1583 		dev_err(rdev->dev, "disabling GPU acceleration\n");
1584 		cayman_cp_fini(rdev);
1585 		r600_irq_fini(rdev);
1586 		radeon_wb_fini(rdev);
1587 		r100_ib_fini(rdev);
1588 		radeon_irq_kms_fini(rdev);
1589 		cayman_pcie_gart_fini(rdev);
1590 		rdev->accel_working = false;
1591 	}
1592 
1593 	/* Don't start up if the MC ucode is missing.
1594 	 * The default clocks and voltages before the MC ucode
1595 	 * is loaded are not suffient for advanced operations.
1596 	 */
1597 	if (!rdev->mc_fw) {
1598 		DRM_ERROR("radeon: MC ucode required for NI+.\n");
1599 		return -EINVAL;
1600 	}
1601 
1602 	return 0;
1603 }
1604 
1605 void cayman_fini(struct radeon_device *rdev)
1606 {
1607 	r600_blit_fini(rdev);
1608 	cayman_cp_fini(rdev);
1609 	r600_irq_fini(rdev);
1610 	radeon_wb_fini(rdev);
1611 	r100_ib_fini(rdev);
1612 	radeon_irq_kms_fini(rdev);
1613 	cayman_pcie_gart_fini(rdev);
1614 	r600_vram_scratch_fini(rdev);
1615 	radeon_gem_fini(rdev);
1616 	radeon_semaphore_driver_fini(rdev);
1617 	radeon_fence_driver_fini(rdev);
1618 	radeon_bo_fini(rdev);
1619 	radeon_atombios_fini(rdev);
1620 	kfree(rdev->bios);
1621 	rdev->bios = NULL;
1622 }
1623 
1624