xref: /openbmc/linux/drivers/gpu/drm/radeon/ni.c (revision 1b9c3dd0)
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 extern void si_rlc_fini(struct radeon_device *rdev);
46 extern int si_rlc_init(struct radeon_device *rdev);
47 
48 #define EVERGREEN_PFP_UCODE_SIZE 1120
49 #define EVERGREEN_PM4_UCODE_SIZE 1376
50 #define EVERGREEN_RLC_UCODE_SIZE 768
51 #define BTC_MC_UCODE_SIZE 6024
52 
53 #define CAYMAN_PFP_UCODE_SIZE 2176
54 #define CAYMAN_PM4_UCODE_SIZE 2176
55 #define CAYMAN_RLC_UCODE_SIZE 1024
56 #define CAYMAN_MC_UCODE_SIZE 6037
57 
58 #define ARUBA_RLC_UCODE_SIZE 1536
59 
60 /* Firmware Names */
61 MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
62 MODULE_FIRMWARE("radeon/BARTS_me.bin");
63 MODULE_FIRMWARE("radeon/BARTS_mc.bin");
64 MODULE_FIRMWARE("radeon/BTC_rlc.bin");
65 MODULE_FIRMWARE("radeon/TURKS_pfp.bin");
66 MODULE_FIRMWARE("radeon/TURKS_me.bin");
67 MODULE_FIRMWARE("radeon/TURKS_mc.bin");
68 MODULE_FIRMWARE("radeon/CAICOS_pfp.bin");
69 MODULE_FIRMWARE("radeon/CAICOS_me.bin");
70 MODULE_FIRMWARE("radeon/CAICOS_mc.bin");
71 MODULE_FIRMWARE("radeon/CAYMAN_pfp.bin");
72 MODULE_FIRMWARE("radeon/CAYMAN_me.bin");
73 MODULE_FIRMWARE("radeon/CAYMAN_mc.bin");
74 MODULE_FIRMWARE("radeon/CAYMAN_rlc.bin");
75 MODULE_FIRMWARE("radeon/ARUBA_pfp.bin");
76 MODULE_FIRMWARE("radeon/ARUBA_me.bin");
77 MODULE_FIRMWARE("radeon/ARUBA_rlc.bin");
78 
79 #define BTC_IO_MC_REGS_SIZE 29
80 
81 static const u32 barts_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
82 	{0x00000077, 0xff010100},
83 	{0x00000078, 0x00000000},
84 	{0x00000079, 0x00001434},
85 	{0x0000007a, 0xcc08ec08},
86 	{0x0000007b, 0x00040000},
87 	{0x0000007c, 0x000080c0},
88 	{0x0000007d, 0x09000000},
89 	{0x0000007e, 0x00210404},
90 	{0x00000081, 0x08a8e800},
91 	{0x00000082, 0x00030444},
92 	{0x00000083, 0x00000000},
93 	{0x00000085, 0x00000001},
94 	{0x00000086, 0x00000002},
95 	{0x00000087, 0x48490000},
96 	{0x00000088, 0x20244647},
97 	{0x00000089, 0x00000005},
98 	{0x0000008b, 0x66030000},
99 	{0x0000008c, 0x00006603},
100 	{0x0000008d, 0x00000100},
101 	{0x0000008f, 0x00001c0a},
102 	{0x00000090, 0xff000001},
103 	{0x00000094, 0x00101101},
104 	{0x00000095, 0x00000fff},
105 	{0x00000096, 0x00116fff},
106 	{0x00000097, 0x60010000},
107 	{0x00000098, 0x10010000},
108 	{0x00000099, 0x00006000},
109 	{0x0000009a, 0x00001000},
110 	{0x0000009f, 0x00946a00}
111 };
112 
113 static const u32 turks_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
114 	{0x00000077, 0xff010100},
115 	{0x00000078, 0x00000000},
116 	{0x00000079, 0x00001434},
117 	{0x0000007a, 0xcc08ec08},
118 	{0x0000007b, 0x00040000},
119 	{0x0000007c, 0x000080c0},
120 	{0x0000007d, 0x09000000},
121 	{0x0000007e, 0x00210404},
122 	{0x00000081, 0x08a8e800},
123 	{0x00000082, 0x00030444},
124 	{0x00000083, 0x00000000},
125 	{0x00000085, 0x00000001},
126 	{0x00000086, 0x00000002},
127 	{0x00000087, 0x48490000},
128 	{0x00000088, 0x20244647},
129 	{0x00000089, 0x00000005},
130 	{0x0000008b, 0x66030000},
131 	{0x0000008c, 0x00006603},
132 	{0x0000008d, 0x00000100},
133 	{0x0000008f, 0x00001c0a},
134 	{0x00000090, 0xff000001},
135 	{0x00000094, 0x00101101},
136 	{0x00000095, 0x00000fff},
137 	{0x00000096, 0x00116fff},
138 	{0x00000097, 0x60010000},
139 	{0x00000098, 0x10010000},
140 	{0x00000099, 0x00006000},
141 	{0x0000009a, 0x00001000},
142 	{0x0000009f, 0x00936a00}
143 };
144 
145 static const u32 caicos_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
146 	{0x00000077, 0xff010100},
147 	{0x00000078, 0x00000000},
148 	{0x00000079, 0x00001434},
149 	{0x0000007a, 0xcc08ec08},
150 	{0x0000007b, 0x00040000},
151 	{0x0000007c, 0x000080c0},
152 	{0x0000007d, 0x09000000},
153 	{0x0000007e, 0x00210404},
154 	{0x00000081, 0x08a8e800},
155 	{0x00000082, 0x00030444},
156 	{0x00000083, 0x00000000},
157 	{0x00000085, 0x00000001},
158 	{0x00000086, 0x00000002},
159 	{0x00000087, 0x48490000},
160 	{0x00000088, 0x20244647},
161 	{0x00000089, 0x00000005},
162 	{0x0000008b, 0x66030000},
163 	{0x0000008c, 0x00006603},
164 	{0x0000008d, 0x00000100},
165 	{0x0000008f, 0x00001c0a},
166 	{0x00000090, 0xff000001},
167 	{0x00000094, 0x00101101},
168 	{0x00000095, 0x00000fff},
169 	{0x00000096, 0x00116fff},
170 	{0x00000097, 0x60010000},
171 	{0x00000098, 0x10010000},
172 	{0x00000099, 0x00006000},
173 	{0x0000009a, 0x00001000},
174 	{0x0000009f, 0x00916a00}
175 };
176 
177 static const u32 cayman_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
178 	{0x00000077, 0xff010100},
179 	{0x00000078, 0x00000000},
180 	{0x00000079, 0x00001434},
181 	{0x0000007a, 0xcc08ec08},
182 	{0x0000007b, 0x00040000},
183 	{0x0000007c, 0x000080c0},
184 	{0x0000007d, 0x09000000},
185 	{0x0000007e, 0x00210404},
186 	{0x00000081, 0x08a8e800},
187 	{0x00000082, 0x00030444},
188 	{0x00000083, 0x00000000},
189 	{0x00000085, 0x00000001},
190 	{0x00000086, 0x00000002},
191 	{0x00000087, 0x48490000},
192 	{0x00000088, 0x20244647},
193 	{0x00000089, 0x00000005},
194 	{0x0000008b, 0x66030000},
195 	{0x0000008c, 0x00006603},
196 	{0x0000008d, 0x00000100},
197 	{0x0000008f, 0x00001c0a},
198 	{0x00000090, 0xff000001},
199 	{0x00000094, 0x00101101},
200 	{0x00000095, 0x00000fff},
201 	{0x00000096, 0x00116fff},
202 	{0x00000097, 0x60010000},
203 	{0x00000098, 0x10010000},
204 	{0x00000099, 0x00006000},
205 	{0x0000009a, 0x00001000},
206 	{0x0000009f, 0x00976b00}
207 };
208 
209 int ni_mc_load_microcode(struct radeon_device *rdev)
210 {
211 	const __be32 *fw_data;
212 	u32 mem_type, running, blackout = 0;
213 	u32 *io_mc_regs;
214 	int i, ucode_size, regs_size;
215 
216 	if (!rdev->mc_fw)
217 		return -EINVAL;
218 
219 	switch (rdev->family) {
220 	case CHIP_BARTS:
221 		io_mc_regs = (u32 *)&barts_io_mc_regs;
222 		ucode_size = BTC_MC_UCODE_SIZE;
223 		regs_size = BTC_IO_MC_REGS_SIZE;
224 		break;
225 	case CHIP_TURKS:
226 		io_mc_regs = (u32 *)&turks_io_mc_regs;
227 		ucode_size = BTC_MC_UCODE_SIZE;
228 		regs_size = BTC_IO_MC_REGS_SIZE;
229 		break;
230 	case CHIP_CAICOS:
231 	default:
232 		io_mc_regs = (u32 *)&caicos_io_mc_regs;
233 		ucode_size = BTC_MC_UCODE_SIZE;
234 		regs_size = BTC_IO_MC_REGS_SIZE;
235 		break;
236 	case CHIP_CAYMAN:
237 		io_mc_regs = (u32 *)&cayman_io_mc_regs;
238 		ucode_size = CAYMAN_MC_UCODE_SIZE;
239 		regs_size = BTC_IO_MC_REGS_SIZE;
240 		break;
241 	}
242 
243 	mem_type = (RREG32(MC_SEQ_MISC0) & MC_SEQ_MISC0_GDDR5_MASK) >> MC_SEQ_MISC0_GDDR5_SHIFT;
244 	running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
245 
246 	if ((mem_type == MC_SEQ_MISC0_GDDR5_VALUE) && (running == 0)) {
247 		if (running) {
248 			blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
249 			WREG32(MC_SHARED_BLACKOUT_CNTL, 1);
250 		}
251 
252 		/* reset the engine and set to writable */
253 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
254 		WREG32(MC_SEQ_SUP_CNTL, 0x00000010);
255 
256 		/* load mc io regs */
257 		for (i = 0; i < regs_size; i++) {
258 			WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
259 			WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
260 		}
261 		/* load the MC ucode */
262 		fw_data = (const __be32 *)rdev->mc_fw->data;
263 		for (i = 0; i < ucode_size; i++)
264 			WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
265 
266 		/* put the engine back into the active state */
267 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
268 		WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
269 		WREG32(MC_SEQ_SUP_CNTL, 0x00000001);
270 
271 		/* wait for training to complete */
272 		for (i = 0; i < rdev->usec_timeout; i++) {
273 			if (RREG32(MC_IO_PAD_CNTL_D0) & MEM_FALL_OUT_CMD)
274 				break;
275 			udelay(1);
276 		}
277 
278 		if (running)
279 			WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
280 	}
281 
282 	return 0;
283 }
284 
285 int ni_init_microcode(struct radeon_device *rdev)
286 {
287 	struct platform_device *pdev;
288 	const char *chip_name;
289 	const char *rlc_chip_name;
290 	size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
291 	char fw_name[30];
292 	int err;
293 
294 	DRM_DEBUG("\n");
295 
296 	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
297 	err = IS_ERR(pdev);
298 	if (err) {
299 		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
300 		return -EINVAL;
301 	}
302 
303 	switch (rdev->family) {
304 	case CHIP_BARTS:
305 		chip_name = "BARTS";
306 		rlc_chip_name = "BTC";
307 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
308 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
309 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
310 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
311 		break;
312 	case CHIP_TURKS:
313 		chip_name = "TURKS";
314 		rlc_chip_name = "BTC";
315 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
316 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
317 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
318 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
319 		break;
320 	case CHIP_CAICOS:
321 		chip_name = "CAICOS";
322 		rlc_chip_name = "BTC";
323 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
324 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
325 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
326 		mc_req_size = BTC_MC_UCODE_SIZE * 4;
327 		break;
328 	case CHIP_CAYMAN:
329 		chip_name = "CAYMAN";
330 		rlc_chip_name = "CAYMAN";
331 		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
332 		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
333 		rlc_req_size = CAYMAN_RLC_UCODE_SIZE * 4;
334 		mc_req_size = CAYMAN_MC_UCODE_SIZE * 4;
335 		break;
336 	case CHIP_ARUBA:
337 		chip_name = "ARUBA";
338 		rlc_chip_name = "ARUBA";
339 		/* pfp/me same size as CAYMAN */
340 		pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
341 		me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
342 		rlc_req_size = ARUBA_RLC_UCODE_SIZE * 4;
343 		mc_req_size = 0;
344 		break;
345 	default: BUG();
346 	}
347 
348 	DRM_INFO("Loading %s Microcode\n", chip_name);
349 
350 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
351 	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
352 	if (err)
353 		goto out;
354 	if (rdev->pfp_fw->size != pfp_req_size) {
355 		printk(KERN_ERR
356 		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
357 		       rdev->pfp_fw->size, fw_name);
358 		err = -EINVAL;
359 		goto out;
360 	}
361 
362 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
363 	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
364 	if (err)
365 		goto out;
366 	if (rdev->me_fw->size != me_req_size) {
367 		printk(KERN_ERR
368 		       "ni_cp: Bogus length %zu in firmware \"%s\"\n",
369 		       rdev->me_fw->size, fw_name);
370 		err = -EINVAL;
371 	}
372 
373 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
374 	err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
375 	if (err)
376 		goto out;
377 	if (rdev->rlc_fw->size != rlc_req_size) {
378 		printk(KERN_ERR
379 		       "ni_rlc: Bogus length %zu in firmware \"%s\"\n",
380 		       rdev->rlc_fw->size, fw_name);
381 		err = -EINVAL;
382 	}
383 
384 	/* no MC ucode on TN */
385 	if (!(rdev->flags & RADEON_IS_IGP)) {
386 		snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
387 		err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
388 		if (err)
389 			goto out;
390 		if (rdev->mc_fw->size != mc_req_size) {
391 			printk(KERN_ERR
392 			       "ni_mc: Bogus length %zu in firmware \"%s\"\n",
393 			       rdev->mc_fw->size, fw_name);
394 			err = -EINVAL;
395 		}
396 	}
397 out:
398 	platform_device_unregister(pdev);
399 
400 	if (err) {
401 		if (err != -EINVAL)
402 			printk(KERN_ERR
403 			       "ni_cp: Failed to load firmware \"%s\"\n",
404 			       fw_name);
405 		release_firmware(rdev->pfp_fw);
406 		rdev->pfp_fw = NULL;
407 		release_firmware(rdev->me_fw);
408 		rdev->me_fw = NULL;
409 		release_firmware(rdev->rlc_fw);
410 		rdev->rlc_fw = NULL;
411 		release_firmware(rdev->mc_fw);
412 		rdev->mc_fw = NULL;
413 	}
414 	return err;
415 }
416 
417 /*
418  * Core functions
419  */
420 static u32 cayman_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
421 					       u32 num_tile_pipes,
422 					       u32 num_backends_per_asic,
423 					       u32 *backend_disable_mask_per_asic,
424 					       u32 num_shader_engines)
425 {
426 	u32 backend_map = 0;
427 	u32 enabled_backends_mask = 0;
428 	u32 enabled_backends_count = 0;
429 	u32 num_backends_per_se;
430 	u32 cur_pipe;
431 	u32 swizzle_pipe[CAYMAN_MAX_PIPES];
432 	u32 cur_backend = 0;
433 	u32 i;
434 	bool force_no_swizzle;
435 
436 	/* force legal values */
437 	if (num_tile_pipes < 1)
438 		num_tile_pipes = 1;
439 	if (num_tile_pipes > rdev->config.cayman.max_tile_pipes)
440 		num_tile_pipes = rdev->config.cayman.max_tile_pipes;
441 	if (num_shader_engines < 1)
442 		num_shader_engines = 1;
443 	if (num_shader_engines > rdev->config.cayman.max_shader_engines)
444 		num_shader_engines = rdev->config.cayman.max_shader_engines;
445 	if (num_backends_per_asic < num_shader_engines)
446 		num_backends_per_asic = num_shader_engines;
447 	if (num_backends_per_asic > (rdev->config.cayman.max_backends_per_se * num_shader_engines))
448 		num_backends_per_asic = rdev->config.cayman.max_backends_per_se * num_shader_engines;
449 
450 	/* make sure we have the same number of backends per se */
451 	num_backends_per_asic = ALIGN(num_backends_per_asic, num_shader_engines);
452 	/* set up the number of backends per se */
453 	num_backends_per_se = num_backends_per_asic / num_shader_engines;
454 	if (num_backends_per_se > rdev->config.cayman.max_backends_per_se) {
455 		num_backends_per_se = rdev->config.cayman.max_backends_per_se;
456 		num_backends_per_asic = num_backends_per_se * num_shader_engines;
457 	}
458 
459 	/* create enable mask and count for enabled backends */
460 	for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
461 		if (((*backend_disable_mask_per_asic >> i) & 1) == 0) {
462 			enabled_backends_mask |= (1 << i);
463 			++enabled_backends_count;
464 		}
465 		if (enabled_backends_count == num_backends_per_asic)
466 			break;
467 	}
468 
469 	/* force the backends mask to match the current number of backends */
470 	if (enabled_backends_count != num_backends_per_asic) {
471 		u32 this_backend_enabled;
472 		u32 shader_engine;
473 		u32 backend_per_se;
474 
475 		enabled_backends_mask = 0;
476 		enabled_backends_count = 0;
477 		*backend_disable_mask_per_asic = CAYMAN_MAX_BACKENDS_MASK;
478 		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
479 			/* calc the current se */
480 			shader_engine = i / rdev->config.cayman.max_backends_per_se;
481 			/* calc the backend per se */
482 			backend_per_se = i % rdev->config.cayman.max_backends_per_se;
483 			/* default to not enabled */
484 			this_backend_enabled = 0;
485 			if ((shader_engine < num_shader_engines) &&
486 			    (backend_per_se < num_backends_per_se))
487 				this_backend_enabled = 1;
488 			if (this_backend_enabled) {
489 				enabled_backends_mask |= (1 << i);
490 				*backend_disable_mask_per_asic &= ~(1 << i);
491 				++enabled_backends_count;
492 			}
493 		}
494 	}
495 
496 
497 	memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * CAYMAN_MAX_PIPES);
498 	switch (rdev->family) {
499 	case CHIP_CAYMAN:
500 	case CHIP_ARUBA:
501 		force_no_swizzle = true;
502 		break;
503 	default:
504 		force_no_swizzle = false;
505 		break;
506 	}
507 	if (force_no_swizzle) {
508 		bool last_backend_enabled = false;
509 
510 		force_no_swizzle = false;
511 		for (i = 0; i < CAYMAN_MAX_BACKENDS; ++i) {
512 			if (((enabled_backends_mask >> i) & 1) == 1) {
513 				if (last_backend_enabled)
514 					force_no_swizzle = true;
515 				last_backend_enabled = true;
516 			} else
517 				last_backend_enabled = false;
518 		}
519 	}
520 
521 	switch (num_tile_pipes) {
522 	case 1:
523 	case 3:
524 	case 5:
525 	case 7:
526 		DRM_ERROR("odd number of pipes!\n");
527 		break;
528 	case 2:
529 		swizzle_pipe[0] = 0;
530 		swizzle_pipe[1] = 1;
531 		break;
532 	case 4:
533 		if (force_no_swizzle) {
534 			swizzle_pipe[0] = 0;
535 			swizzle_pipe[1] = 1;
536 			swizzle_pipe[2] = 2;
537 			swizzle_pipe[3] = 3;
538 		} else {
539 			swizzle_pipe[0] = 0;
540 			swizzle_pipe[1] = 2;
541 			swizzle_pipe[2] = 1;
542 			swizzle_pipe[3] = 3;
543 		}
544 		break;
545 	case 6:
546 		if (force_no_swizzle) {
547 			swizzle_pipe[0] = 0;
548 			swizzle_pipe[1] = 1;
549 			swizzle_pipe[2] = 2;
550 			swizzle_pipe[3] = 3;
551 			swizzle_pipe[4] = 4;
552 			swizzle_pipe[5] = 5;
553 		} else {
554 			swizzle_pipe[0] = 0;
555 			swizzle_pipe[1] = 2;
556 			swizzle_pipe[2] = 4;
557 			swizzle_pipe[3] = 1;
558 			swizzle_pipe[4] = 3;
559 			swizzle_pipe[5] = 5;
560 		}
561 		break;
562 	case 8:
563 		if (force_no_swizzle) {
564 			swizzle_pipe[0] = 0;
565 			swizzle_pipe[1] = 1;
566 			swizzle_pipe[2] = 2;
567 			swizzle_pipe[3] = 3;
568 			swizzle_pipe[4] = 4;
569 			swizzle_pipe[5] = 5;
570 			swizzle_pipe[6] = 6;
571 			swizzle_pipe[7] = 7;
572 		} else {
573 			swizzle_pipe[0] = 0;
574 			swizzle_pipe[1] = 2;
575 			swizzle_pipe[2] = 4;
576 			swizzle_pipe[3] = 6;
577 			swizzle_pipe[4] = 1;
578 			swizzle_pipe[5] = 3;
579 			swizzle_pipe[6] = 5;
580 			swizzle_pipe[7] = 7;
581 		}
582 		break;
583 	}
584 
585 	for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
586 		while (((1 << cur_backend) & enabled_backends_mask) == 0)
587 			cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;
588 
589 		backend_map |= (((cur_backend & 0xf) << (swizzle_pipe[cur_pipe] * 4)));
590 
591 		cur_backend = (cur_backend + 1) % CAYMAN_MAX_BACKENDS;
592 	}
593 
594 	return backend_map;
595 }
596 
597 static u32 cayman_get_disable_mask_per_asic(struct radeon_device *rdev,
598 					    u32 disable_mask_per_se,
599 					    u32 max_disable_mask_per_se,
600 					    u32 num_shader_engines)
601 {
602 	u32 disable_field_width_per_se = r600_count_pipe_bits(disable_mask_per_se);
603 	u32 disable_mask_per_asic = disable_mask_per_se & max_disable_mask_per_se;
604 
605 	if (num_shader_engines == 1)
606 		return disable_mask_per_asic;
607 	else if (num_shader_engines == 2)
608 		return disable_mask_per_asic | (disable_mask_per_asic << disable_field_width_per_se);
609 	else
610 		return 0xffffffff;
611 }
612 
613 static void cayman_gpu_init(struct radeon_device *rdev)
614 {
615 	u32 cc_rb_backend_disable = 0;
616 	u32 cc_gc_shader_pipe_config;
617 	u32 gb_addr_config = 0;
618 	u32 mc_shared_chmap, mc_arb_ramcfg;
619 	u32 gb_backend_map;
620 	u32 cgts_tcc_disable;
621 	u32 sx_debug_1;
622 	u32 smx_dc_ctl0;
623 	u32 gc_user_shader_pipe_config;
624 	u32 gc_user_rb_backend_disable;
625 	u32 cgts_user_tcc_disable;
626 	u32 cgts_sm_ctrl_reg;
627 	u32 hdp_host_path_cntl;
628 	u32 tmp;
629 	int i, j;
630 
631 	switch (rdev->family) {
632 	case CHIP_CAYMAN:
633 		rdev->config.cayman.max_shader_engines = 2;
634 		rdev->config.cayman.max_pipes_per_simd = 4;
635 		rdev->config.cayman.max_tile_pipes = 8;
636 		rdev->config.cayman.max_simds_per_se = 12;
637 		rdev->config.cayman.max_backends_per_se = 4;
638 		rdev->config.cayman.max_texture_channel_caches = 8;
639 		rdev->config.cayman.max_gprs = 256;
640 		rdev->config.cayman.max_threads = 256;
641 		rdev->config.cayman.max_gs_threads = 32;
642 		rdev->config.cayman.max_stack_entries = 512;
643 		rdev->config.cayman.sx_num_of_sets = 8;
644 		rdev->config.cayman.sx_max_export_size = 256;
645 		rdev->config.cayman.sx_max_export_pos_size = 64;
646 		rdev->config.cayman.sx_max_export_smx_size = 192;
647 		rdev->config.cayman.max_hw_contexts = 8;
648 		rdev->config.cayman.sq_num_cf_insts = 2;
649 
650 		rdev->config.cayman.sc_prim_fifo_size = 0x100;
651 		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
652 		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
653 		break;
654 	case CHIP_ARUBA:
655 	default:
656 		rdev->config.cayman.max_shader_engines = 1;
657 		rdev->config.cayman.max_pipes_per_simd = 4;
658 		rdev->config.cayman.max_tile_pipes = 2;
659 		if ((rdev->pdev->device == 0x9900) ||
660 		    (rdev->pdev->device == 0x9901)) {
661 			rdev->config.cayman.max_simds_per_se = 6;
662 			rdev->config.cayman.max_backends_per_se = 2;
663 		} else if ((rdev->pdev->device == 0x9903) ||
664 			   (rdev->pdev->device == 0x9904)) {
665 			rdev->config.cayman.max_simds_per_se = 4;
666 			rdev->config.cayman.max_backends_per_se = 2;
667 		} else if ((rdev->pdev->device == 0x9990) ||
668 			   (rdev->pdev->device == 0x9991)) {
669 			rdev->config.cayman.max_simds_per_se = 3;
670 			rdev->config.cayman.max_backends_per_se = 1;
671 		} else {
672 			rdev->config.cayman.max_simds_per_se = 2;
673 			rdev->config.cayman.max_backends_per_se = 1;
674 		}
675 		rdev->config.cayman.max_texture_channel_caches = 2;
676 		rdev->config.cayman.max_gprs = 256;
677 		rdev->config.cayman.max_threads = 256;
678 		rdev->config.cayman.max_gs_threads = 32;
679 		rdev->config.cayman.max_stack_entries = 512;
680 		rdev->config.cayman.sx_num_of_sets = 8;
681 		rdev->config.cayman.sx_max_export_size = 256;
682 		rdev->config.cayman.sx_max_export_pos_size = 64;
683 		rdev->config.cayman.sx_max_export_smx_size = 192;
684 		rdev->config.cayman.max_hw_contexts = 8;
685 		rdev->config.cayman.sq_num_cf_insts = 2;
686 
687 		rdev->config.cayman.sc_prim_fifo_size = 0x40;
688 		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
689 		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
690 		break;
691 	}
692 
693 	/* Initialize HDP */
694 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
695 		WREG32((0x2c14 + j), 0x00000000);
696 		WREG32((0x2c18 + j), 0x00000000);
697 		WREG32((0x2c1c + j), 0x00000000);
698 		WREG32((0x2c20 + j), 0x00000000);
699 		WREG32((0x2c24 + j), 0x00000000);
700 	}
701 
702 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
703 
704 	evergreen_fix_pci_max_read_req_size(rdev);
705 
706 	mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
707 	mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
708 
709 	cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE);
710 	cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG);
711 	cgts_tcc_disable = 0xffff0000;
712 	for (i = 0; i < rdev->config.cayman.max_texture_channel_caches; i++)
713 		cgts_tcc_disable &= ~(1 << (16 + i));
714 	gc_user_rb_backend_disable = RREG32(GC_USER_RB_BACKEND_DISABLE);
715 	gc_user_shader_pipe_config = RREG32(GC_USER_SHADER_PIPE_CONFIG);
716 	cgts_user_tcc_disable = RREG32(CGTS_USER_TCC_DISABLE);
717 
718 	rdev->config.cayman.num_shader_engines = rdev->config.cayman.max_shader_engines;
719 	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_QD_PIPES_MASK) >> INACTIVE_QD_PIPES_SHIFT;
720 	rdev->config.cayman.num_shader_pipes_per_simd = r600_count_pipe_bits(tmp);
721 	rdev->config.cayman.num_tile_pipes = rdev->config.cayman.max_tile_pipes;
722 	tmp = ((~gc_user_shader_pipe_config) & INACTIVE_SIMDS_MASK) >> INACTIVE_SIMDS_SHIFT;
723 	rdev->config.cayman.num_simds_per_se = r600_count_pipe_bits(tmp);
724 	tmp = ((~gc_user_rb_backend_disable) & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
725 	rdev->config.cayman.num_backends_per_se = r600_count_pipe_bits(tmp);
726 	tmp = (gc_user_rb_backend_disable & BACKEND_DISABLE_MASK) >> BACKEND_DISABLE_SHIFT;
727 	rdev->config.cayman.backend_disable_mask_per_asic =
728 		cayman_get_disable_mask_per_asic(rdev, tmp, CAYMAN_MAX_BACKENDS_PER_SE_MASK,
729 						 rdev->config.cayman.num_shader_engines);
730 	rdev->config.cayman.backend_map =
731 		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
732 						    rdev->config.cayman.num_backends_per_se *
733 						    rdev->config.cayman.num_shader_engines,
734 						    &rdev->config.cayman.backend_disable_mask_per_asic,
735 						    rdev->config.cayman.num_shader_engines);
736 	tmp = ((~cgts_user_tcc_disable) & TCC_DISABLE_MASK) >> TCC_DISABLE_SHIFT;
737 	rdev->config.cayman.num_texture_channel_caches = r600_count_pipe_bits(tmp);
738 	tmp = (mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT;
739 	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
740 	if (rdev->config.cayman.mem_max_burst_length_bytes > 512)
741 		rdev->config.cayman.mem_max_burst_length_bytes = 512;
742 	tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
743 	rdev->config.cayman.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
744 	if (rdev->config.cayman.mem_row_size_in_kb > 4)
745 		rdev->config.cayman.mem_row_size_in_kb = 4;
746 	/* XXX use MC settings? */
747 	rdev->config.cayman.shader_engine_tile_size = 32;
748 	rdev->config.cayman.num_gpus = 1;
749 	rdev->config.cayman.multi_gpu_tile_size = 64;
750 
751 	//gb_addr_config = 0x02011003
752 #if 0
753 	gb_addr_config = RREG32(GB_ADDR_CONFIG);
754 #else
755 	gb_addr_config = 0;
756 	switch (rdev->config.cayman.num_tile_pipes) {
757 	case 1:
758 	default:
759 		gb_addr_config |= NUM_PIPES(0);
760 		break;
761 	case 2:
762 		gb_addr_config |= NUM_PIPES(1);
763 		break;
764 	case 4:
765 		gb_addr_config |= NUM_PIPES(2);
766 		break;
767 	case 8:
768 		gb_addr_config |= NUM_PIPES(3);
769 		break;
770 	}
771 
772 	tmp = (rdev->config.cayman.mem_max_burst_length_bytes / 256) - 1;
773 	gb_addr_config |= PIPE_INTERLEAVE_SIZE(tmp);
774 	gb_addr_config |= NUM_SHADER_ENGINES(rdev->config.cayman.num_shader_engines - 1);
775 	tmp = (rdev->config.cayman.shader_engine_tile_size / 16) - 1;
776 	gb_addr_config |= SHADER_ENGINE_TILE_SIZE(tmp);
777 	switch (rdev->config.cayman.num_gpus) {
778 	case 1:
779 	default:
780 		gb_addr_config |= NUM_GPUS(0);
781 		break;
782 	case 2:
783 		gb_addr_config |= NUM_GPUS(1);
784 		break;
785 	case 4:
786 		gb_addr_config |= NUM_GPUS(2);
787 		break;
788 	}
789 	switch (rdev->config.cayman.multi_gpu_tile_size) {
790 	case 16:
791 		gb_addr_config |= MULTI_GPU_TILE_SIZE(0);
792 		break;
793 	case 32:
794 	default:
795 		gb_addr_config |= MULTI_GPU_TILE_SIZE(1);
796 		break;
797 	case 64:
798 		gb_addr_config |= MULTI_GPU_TILE_SIZE(2);
799 		break;
800 	case 128:
801 		gb_addr_config |= MULTI_GPU_TILE_SIZE(3);
802 		break;
803 	}
804 	switch (rdev->config.cayman.mem_row_size_in_kb) {
805 	case 1:
806 	default:
807 		gb_addr_config |= ROW_SIZE(0);
808 		break;
809 	case 2:
810 		gb_addr_config |= ROW_SIZE(1);
811 		break;
812 	case 4:
813 		gb_addr_config |= ROW_SIZE(2);
814 		break;
815 	}
816 #endif
817 
818 	tmp = (gb_addr_config & NUM_PIPES_MASK) >> NUM_PIPES_SHIFT;
819 	rdev->config.cayman.num_tile_pipes = (1 << tmp);
820 	tmp = (gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT;
821 	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
822 	tmp = (gb_addr_config & NUM_SHADER_ENGINES_MASK) >> NUM_SHADER_ENGINES_SHIFT;
823 	rdev->config.cayman.num_shader_engines = tmp + 1;
824 	tmp = (gb_addr_config & NUM_GPUS_MASK) >> NUM_GPUS_SHIFT;
825 	rdev->config.cayman.num_gpus = tmp + 1;
826 	tmp = (gb_addr_config & MULTI_GPU_TILE_SIZE_MASK) >> MULTI_GPU_TILE_SIZE_SHIFT;
827 	rdev->config.cayman.multi_gpu_tile_size = 1 << tmp;
828 	tmp = (gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT;
829 	rdev->config.cayman.mem_row_size_in_kb = 1 << tmp;
830 
831 	//gb_backend_map = 0x76541032;
832 #if 0
833 	gb_backend_map = RREG32(GB_BACKEND_MAP);
834 #else
835 	gb_backend_map =
836 		cayman_get_tile_pipe_to_backend_map(rdev, rdev->config.cayman.num_tile_pipes,
837 						    rdev->config.cayman.num_backends_per_se *
838 						    rdev->config.cayman.num_shader_engines,
839 						    &rdev->config.cayman.backend_disable_mask_per_asic,
840 						    rdev->config.cayman.num_shader_engines);
841 #endif
842 	/* setup tiling info dword.  gb_addr_config is not adequate since it does
843 	 * not have bank info, so create a custom tiling dword.
844 	 * bits 3:0   num_pipes
845 	 * bits 7:4   num_banks
846 	 * bits 11:8  group_size
847 	 * bits 15:12 row_size
848 	 */
849 	rdev->config.cayman.tile_config = 0;
850 	switch (rdev->config.cayman.num_tile_pipes) {
851 	case 1:
852 	default:
853 		rdev->config.cayman.tile_config |= (0 << 0);
854 		break;
855 	case 2:
856 		rdev->config.cayman.tile_config |= (1 << 0);
857 		break;
858 	case 4:
859 		rdev->config.cayman.tile_config |= (2 << 0);
860 		break;
861 	case 8:
862 		rdev->config.cayman.tile_config |= (3 << 0);
863 		break;
864 	}
865 
866 	/* num banks is 8 on all fusion asics. 0 = 4, 1 = 8, 2 = 16 */
867 	if (rdev->flags & RADEON_IS_IGP)
868 		rdev->config.evergreen.tile_config |= 1 << 4;
869 	else
870 		rdev->config.cayman.tile_config |=
871 			((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) << 4;
872 	rdev->config.cayman.tile_config |=
873 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
874 	rdev->config.cayman.tile_config |=
875 		((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;
876 
877 	rdev->config.cayman.backend_map = gb_backend_map;
878 	WREG32(GB_BACKEND_MAP, gb_backend_map);
879 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
880 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
881 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);
882 
883 	/* primary versions */
884 	WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable);
885 	WREG32(CC_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
886 	WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
887 
888 	WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);
889 	WREG32(CGTS_SYS_TCC_DISABLE, cgts_tcc_disable);
890 
891 	/* user versions */
892 	WREG32(GC_USER_RB_BACKEND_DISABLE, cc_rb_backend_disable);
893 	WREG32(GC_USER_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
894 	WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
895 
896 	WREG32(CGTS_USER_SYS_TCC_DISABLE, cgts_tcc_disable);
897 	WREG32(CGTS_USER_TCC_DISABLE, cgts_tcc_disable);
898 
899 	/* reprogram the shader complex */
900 	cgts_sm_ctrl_reg = RREG32(CGTS_SM_CTRL_REG);
901 	for (i = 0; i < 16; i++)
902 		WREG32(CGTS_SM_CTRL_REG, OVERRIDE);
903 	WREG32(CGTS_SM_CTRL_REG, cgts_sm_ctrl_reg);
904 
905 	/* set HW defaults for 3D engine */
906 	WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));
907 
908 	sx_debug_1 = RREG32(SX_DEBUG_1);
909 	sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
910 	WREG32(SX_DEBUG_1, sx_debug_1);
911 
912 	smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
913 	smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
914 	smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets);
915 	WREG32(SMX_DC_CTL0, smx_dc_ctl0);
916 
917 	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE);
918 
919 	/* need to be explicitly zero-ed */
920 	WREG32(VGT_OFFCHIP_LDS_BASE, 0);
921 	WREG32(SQ_LSTMP_RING_BASE, 0);
922 	WREG32(SQ_HSTMP_RING_BASE, 0);
923 	WREG32(SQ_ESTMP_RING_BASE, 0);
924 	WREG32(SQ_GSTMP_RING_BASE, 0);
925 	WREG32(SQ_VSTMP_RING_BASE, 0);
926 	WREG32(SQ_PSTMP_RING_BASE, 0);
927 
928 	WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO);
929 
930 	WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) |
931 					POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) |
932 					SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1)));
933 
934 	WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) |
935 				 SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) |
936 				 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size)));
937 
938 
939 	WREG32(VGT_NUM_INSTANCES, 1);
940 
941 	WREG32(CP_PERFMON_CNTL, 0);
942 
943 	WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) |
944 				  FETCH_FIFO_HIWATER(0x4) |
945 				  DONE_FIFO_HIWATER(0xe0) |
946 				  ALU_UPDATE_FIFO_HIWATER(0x8)));
947 
948 	WREG32(SQ_GPR_RESOURCE_MGMT_1, NUM_CLAUSE_TEMP_GPRS(4));
949 	WREG32(SQ_CONFIG, (VC_ENABLE |
950 			   EXPORT_SRC_C |
951 			   GFX_PRIO(0) |
952 			   CS1_PRIO(0) |
953 			   CS2_PRIO(1)));
954 	WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);
955 
956 	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
957 					  FORCE_EOV_MAX_REZ_CNT(255)));
958 
959 	WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
960 	       AUTO_INVLD_EN(ES_AND_GS_AUTO));
961 
962 	WREG32(VGT_GS_VERTEX_REUSE, 16);
963 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
964 
965 	WREG32(CB_PERF_CTR0_SEL_0, 0);
966 	WREG32(CB_PERF_CTR0_SEL_1, 0);
967 	WREG32(CB_PERF_CTR1_SEL_0, 0);
968 	WREG32(CB_PERF_CTR1_SEL_1, 0);
969 	WREG32(CB_PERF_CTR2_SEL_0, 0);
970 	WREG32(CB_PERF_CTR2_SEL_1, 0);
971 	WREG32(CB_PERF_CTR3_SEL_0, 0);
972 	WREG32(CB_PERF_CTR3_SEL_1, 0);
973 
974 	tmp = RREG32(HDP_MISC_CNTL);
975 	tmp |= HDP_FLUSH_INVALIDATE_CACHE;
976 	WREG32(HDP_MISC_CNTL, tmp);
977 
978 	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
979 	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
980 
981 	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
982 
983 	udelay(50);
984 }
985 
986 /*
987  * GART
988  */
989 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
990 {
991 	/* flush hdp cache */
992 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
993 
994 	/* bits 0-7 are the VM contexts0-7 */
995 	WREG32(VM_INVALIDATE_REQUEST, 1);
996 }
997 
998 int cayman_pcie_gart_enable(struct radeon_device *rdev)
999 {
1000 	int i, r;
1001 
1002 	if (rdev->gart.robj == NULL) {
1003 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
1004 		return -EINVAL;
1005 	}
1006 	r = radeon_gart_table_vram_pin(rdev);
1007 	if (r)
1008 		return r;
1009 	radeon_gart_restore(rdev);
1010 	/* Setup TLB control */
1011 	WREG32(MC_VM_MX_L1_TLB_CNTL,
1012 	       (0xA << 7) |
1013 	       ENABLE_L1_TLB |
1014 	       ENABLE_L1_FRAGMENT_PROCESSING |
1015 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
1016 	       ENABLE_ADVANCED_DRIVER_MODEL |
1017 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
1018 	/* Setup L2 cache */
1019 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
1020 	       ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
1021 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
1022 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
1023 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
1024 	WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
1025 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
1026 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
1027 	/* setup context0 */
1028 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
1029 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
1030 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
1031 	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
1032 			(u32)(rdev->dummy_page.addr >> 12));
1033 	WREG32(VM_CONTEXT0_CNTL2, 0);
1034 	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
1035 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
1036 
1037 	WREG32(0x15D4, 0);
1038 	WREG32(0x15D8, 0);
1039 	WREG32(0x15DC, 0);
1040 
1041 	/* empty context1-7 */
1042 	for (i = 1; i < 8; i++) {
1043 		WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0);
1044 		WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), 0);
1045 		WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
1046 			rdev->gart.table_addr >> 12);
1047 	}
1048 
1049 	/* enable context1-7 */
1050 	WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
1051 	       (u32)(rdev->dummy_page.addr >> 12));
1052 	WREG32(VM_CONTEXT1_CNTL2, 0);
1053 	WREG32(VM_CONTEXT1_CNTL, 0);
1054 	WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
1055 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
1056 
1057 	cayman_pcie_gart_tlb_flush(rdev);
1058 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
1059 		 (unsigned)(rdev->mc.gtt_size >> 20),
1060 		 (unsigned long long)rdev->gart.table_addr);
1061 	rdev->gart.ready = true;
1062 	return 0;
1063 }
1064 
1065 void cayman_pcie_gart_disable(struct radeon_device *rdev)
1066 {
1067 	/* Disable all tables */
1068 	WREG32(VM_CONTEXT0_CNTL, 0);
1069 	WREG32(VM_CONTEXT1_CNTL, 0);
1070 	/* Setup TLB control */
1071 	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
1072 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
1073 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
1074 	/* Setup L2 cache */
1075 	WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
1076 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
1077 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
1078 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
1079 	WREG32(VM_L2_CNTL2, 0);
1080 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
1081 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
1082 	radeon_gart_table_vram_unpin(rdev);
1083 }
1084 
1085 void cayman_pcie_gart_fini(struct radeon_device *rdev)
1086 {
1087 	cayman_pcie_gart_disable(rdev);
1088 	radeon_gart_table_vram_free(rdev);
1089 	radeon_gart_fini(rdev);
1090 }
1091 
1092 void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
1093 			      int ring, u32 cp_int_cntl)
1094 {
1095 	u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
1096 
1097 	WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
1098 	WREG32(CP_INT_CNTL, cp_int_cntl);
1099 }
1100 
1101 /*
1102  * CP.
1103  */
1104 void cayman_fence_ring_emit(struct radeon_device *rdev,
1105 			    struct radeon_fence *fence)
1106 {
1107 	struct radeon_ring *ring = &rdev->ring[fence->ring];
1108 	u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
1109 
1110 	/* flush read cache over gart for this vmid */
1111 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1112 	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
1113 	radeon_ring_write(ring, 0);
1114 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
1115 	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
1116 	radeon_ring_write(ring, 0xFFFFFFFF);
1117 	radeon_ring_write(ring, 0);
1118 	radeon_ring_write(ring, 10); /* poll interval */
1119 	/* EVENT_WRITE_EOP - flush caches, send int */
1120 	radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
1121 	radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
1122 	radeon_ring_write(ring, addr & 0xffffffff);
1123 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
1124 	radeon_ring_write(ring, fence->seq);
1125 	radeon_ring_write(ring, 0);
1126 }
1127 
1128 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
1129 {
1130 	struct radeon_ring *ring = &rdev->ring[ib->fence->ring];
1131 
1132 	/* set to DX10/11 mode */
1133 	radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
1134 	radeon_ring_write(ring, 1);
1135 	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
1136 	radeon_ring_write(ring,
1137 #ifdef __BIG_ENDIAN
1138 			  (2 << 0) |
1139 #endif
1140 			  (ib->gpu_addr & 0xFFFFFFFC));
1141 	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
1142 	radeon_ring_write(ring, ib->length_dw | (ib->vm_id << 24));
1143 
1144 	/* flush read cache over gart for this vmid */
1145 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1146 	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
1147 	radeon_ring_write(ring, ib->vm_id);
1148 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
1149 	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
1150 	radeon_ring_write(ring, 0xFFFFFFFF);
1151 	radeon_ring_write(ring, 0);
1152 	radeon_ring_write(ring, 10); /* poll interval */
1153 }
1154 
1155 static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
1156 {
1157 	if (enable)
1158 		WREG32(CP_ME_CNTL, 0);
1159 	else {
1160 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
1161 		WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
1162 		WREG32(SCRATCH_UMSK, 0);
1163 	}
1164 }
1165 
1166 static int cayman_cp_load_microcode(struct radeon_device *rdev)
1167 {
1168 	const __be32 *fw_data;
1169 	int i;
1170 
1171 	if (!rdev->me_fw || !rdev->pfp_fw)
1172 		return -EINVAL;
1173 
1174 	cayman_cp_enable(rdev, false);
1175 
1176 	fw_data = (const __be32 *)rdev->pfp_fw->data;
1177 	WREG32(CP_PFP_UCODE_ADDR, 0);
1178 	for (i = 0; i < CAYMAN_PFP_UCODE_SIZE; i++)
1179 		WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
1180 	WREG32(CP_PFP_UCODE_ADDR, 0);
1181 
1182 	fw_data = (const __be32 *)rdev->me_fw->data;
1183 	WREG32(CP_ME_RAM_WADDR, 0);
1184 	for (i = 0; i < CAYMAN_PM4_UCODE_SIZE; i++)
1185 		WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
1186 
1187 	WREG32(CP_PFP_UCODE_ADDR, 0);
1188 	WREG32(CP_ME_RAM_WADDR, 0);
1189 	WREG32(CP_ME_RAM_RADDR, 0);
1190 	return 0;
1191 }
1192 
1193 static int cayman_cp_start(struct radeon_device *rdev)
1194 {
1195 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1196 	int r, i;
1197 
1198 	r = radeon_ring_lock(rdev, ring, 7);
1199 	if (r) {
1200 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1201 		return r;
1202 	}
1203 	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
1204 	radeon_ring_write(ring, 0x1);
1205 	radeon_ring_write(ring, 0x0);
1206 	radeon_ring_write(ring, rdev->config.cayman.max_hw_contexts - 1);
1207 	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1208 	radeon_ring_write(ring, 0);
1209 	radeon_ring_write(ring, 0);
1210 	radeon_ring_unlock_commit(rdev, ring);
1211 
1212 	cayman_cp_enable(rdev, true);
1213 
1214 	r = radeon_ring_lock(rdev, ring, cayman_default_size + 19);
1215 	if (r) {
1216 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1217 		return r;
1218 	}
1219 
1220 	/* setup clear context state */
1221 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1222 	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
1223 
1224 	for (i = 0; i < cayman_default_size; i++)
1225 		radeon_ring_write(ring, cayman_default_state[i]);
1226 
1227 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1228 	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
1229 
1230 	/* set clear context state */
1231 	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
1232 	radeon_ring_write(ring, 0);
1233 
1234 	/* SQ_VTX_BASE_VTX_LOC */
1235 	radeon_ring_write(ring, 0xc0026f00);
1236 	radeon_ring_write(ring, 0x00000000);
1237 	radeon_ring_write(ring, 0x00000000);
1238 	radeon_ring_write(ring, 0x00000000);
1239 
1240 	/* Clear consts */
1241 	radeon_ring_write(ring, 0xc0036f00);
1242 	radeon_ring_write(ring, 0x00000bc4);
1243 	radeon_ring_write(ring, 0xffffffff);
1244 	radeon_ring_write(ring, 0xffffffff);
1245 	radeon_ring_write(ring, 0xffffffff);
1246 
1247 	radeon_ring_write(ring, 0xc0026900);
1248 	radeon_ring_write(ring, 0x00000316);
1249 	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
1250 	radeon_ring_write(ring, 0x00000010); /*  */
1251 
1252 	radeon_ring_unlock_commit(rdev, ring);
1253 
1254 	/* XXX init other rings */
1255 
1256 	return 0;
1257 }
1258 
1259 static void cayman_cp_fini(struct radeon_device *rdev)
1260 {
1261 	cayman_cp_enable(rdev, false);
1262 	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1263 }
1264 
1265 int cayman_cp_resume(struct radeon_device *rdev)
1266 {
1267 	struct radeon_ring *ring;
1268 	u32 tmp;
1269 	u32 rb_bufsz;
1270 	int r;
1271 
1272 	/* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1273 	WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1274 				 SOFT_RESET_PA |
1275 				 SOFT_RESET_SH |
1276 				 SOFT_RESET_VGT |
1277 				 SOFT_RESET_SPI |
1278 				 SOFT_RESET_SX));
1279 	RREG32(GRBM_SOFT_RESET);
1280 	mdelay(15);
1281 	WREG32(GRBM_SOFT_RESET, 0);
1282 	RREG32(GRBM_SOFT_RESET);
1283 
1284 	WREG32(CP_SEM_WAIT_TIMER, 0x0);
1285 	WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0);
1286 
1287 	/* Set the write pointer delay */
1288 	WREG32(CP_RB_WPTR_DELAY, 0);
1289 
1290 	WREG32(CP_DEBUG, (1 << 27));
1291 
1292 	/* ring 0 - compute and gfx */
1293 	/* Set ring buffer size */
1294 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1295 	rb_bufsz = drm_order(ring->ring_size / 8);
1296 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1297 #ifdef __BIG_ENDIAN
1298 	tmp |= BUF_SWAP_32BIT;
1299 #endif
1300 	WREG32(CP_RB0_CNTL, tmp);
1301 
1302 	/* Initialize the ring buffer's read and write pointers */
1303 	WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
1304 	ring->wptr = 0;
1305 	WREG32(CP_RB0_WPTR, ring->wptr);
1306 
1307 	/* set the wb address wether it's enabled or not */
1308 	WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
1309 	WREG32(CP_RB0_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
1310 	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1311 
1312 	if (rdev->wb.enabled)
1313 		WREG32(SCRATCH_UMSK, 0xff);
1314 	else {
1315 		tmp |= RB_NO_UPDATE;
1316 		WREG32(SCRATCH_UMSK, 0);
1317 	}
1318 
1319 	mdelay(1);
1320 	WREG32(CP_RB0_CNTL, tmp);
1321 
1322 	WREG32(CP_RB0_BASE, ring->gpu_addr >> 8);
1323 
1324 	ring->rptr = RREG32(CP_RB0_RPTR);
1325 
1326 	/* ring1  - compute only */
1327 	/* Set ring buffer size */
1328 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
1329 	rb_bufsz = drm_order(ring->ring_size / 8);
1330 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1331 #ifdef __BIG_ENDIAN
1332 	tmp |= BUF_SWAP_32BIT;
1333 #endif
1334 	WREG32(CP_RB1_CNTL, tmp);
1335 
1336 	/* Initialize the ring buffer's read and write pointers */
1337 	WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
1338 	ring->wptr = 0;
1339 	WREG32(CP_RB1_WPTR, ring->wptr);
1340 
1341 	/* set the wb address wether it's enabled or not */
1342 	WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
1343 	WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFF);
1344 
1345 	mdelay(1);
1346 	WREG32(CP_RB1_CNTL, tmp);
1347 
1348 	WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);
1349 
1350 	ring->rptr = RREG32(CP_RB1_RPTR);
1351 
1352 	/* ring2 - compute only */
1353 	/* Set ring buffer size */
1354 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
1355 	rb_bufsz = drm_order(ring->ring_size / 8);
1356 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
1357 #ifdef __BIG_ENDIAN
1358 	tmp |= BUF_SWAP_32BIT;
1359 #endif
1360 	WREG32(CP_RB2_CNTL, tmp);
1361 
1362 	/* Initialize the ring buffer's read and write pointers */
1363 	WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
1364 	ring->wptr = 0;
1365 	WREG32(CP_RB2_WPTR, ring->wptr);
1366 
1367 	/* set the wb address wether it's enabled or not */
1368 	WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
1369 	WREG32(CP_RB2_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFF);
1370 
1371 	mdelay(1);
1372 	WREG32(CP_RB2_CNTL, tmp);
1373 
1374 	WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);
1375 
1376 	ring->rptr = RREG32(CP_RB2_RPTR);
1377 
1378 	/* start the rings */
1379 	cayman_cp_start(rdev);
1380 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
1381 	rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1382 	rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1383 	/* this only test cp0 */
1384 	r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1385 	if (r) {
1386 		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1387 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1388 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1389 		return r;
1390 	}
1391 
1392 	return 0;
1393 }
1394 
1395 static int cayman_gpu_soft_reset(struct radeon_device *rdev)
1396 {
1397 	struct evergreen_mc_save save;
1398 	u32 grbm_reset = 0;
1399 
1400 	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
1401 		return 0;
1402 
1403 	dev_info(rdev->dev, "GPU softreset \n");
1404 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1405 		RREG32(GRBM_STATUS));
1406 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1407 		RREG32(GRBM_STATUS_SE0));
1408 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1409 		RREG32(GRBM_STATUS_SE1));
1410 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1411 		RREG32(SRBM_STATUS));
1412 	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_ADDR   0x%08X\n",
1413 		 RREG32(0x14F8));
1414 	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
1415 		 RREG32(0x14D8));
1416 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1417 		 RREG32(0x14FC));
1418 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1419 		 RREG32(0x14DC));
1420 
1421 	evergreen_mc_stop(rdev, &save);
1422 	if (evergreen_mc_wait_for_idle(rdev)) {
1423 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1424 	}
1425 	/* Disable CP parsing/prefetching */
1426 	WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
1427 
1428 	/* reset all the gfx blocks */
1429 	grbm_reset = (SOFT_RESET_CP |
1430 		      SOFT_RESET_CB |
1431 		      SOFT_RESET_DB |
1432 		      SOFT_RESET_GDS |
1433 		      SOFT_RESET_PA |
1434 		      SOFT_RESET_SC |
1435 		      SOFT_RESET_SPI |
1436 		      SOFT_RESET_SH |
1437 		      SOFT_RESET_SX |
1438 		      SOFT_RESET_TC |
1439 		      SOFT_RESET_TA |
1440 		      SOFT_RESET_VGT |
1441 		      SOFT_RESET_IA);
1442 
1443 	dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
1444 	WREG32(GRBM_SOFT_RESET, grbm_reset);
1445 	(void)RREG32(GRBM_SOFT_RESET);
1446 	udelay(50);
1447 	WREG32(GRBM_SOFT_RESET, 0);
1448 	(void)RREG32(GRBM_SOFT_RESET);
1449 	/* Wait a little for things to settle down */
1450 	udelay(50);
1451 
1452 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1453 		RREG32(GRBM_STATUS));
1454 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1455 		RREG32(GRBM_STATUS_SE0));
1456 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1457 		RREG32(GRBM_STATUS_SE1));
1458 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1459 		RREG32(SRBM_STATUS));
1460 	evergreen_mc_resume(rdev, &save);
1461 	return 0;
1462 }
1463 
1464 int cayman_asic_reset(struct radeon_device *rdev)
1465 {
1466 	return cayman_gpu_soft_reset(rdev);
1467 }
1468 
1469 static int cayman_startup(struct radeon_device *rdev)
1470 {
1471 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1472 	int r;
1473 
1474 	/* enable pcie gen2 link */
1475 	evergreen_pcie_gen2_enable(rdev);
1476 
1477 	if (rdev->flags & RADEON_IS_IGP) {
1478 		if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
1479 			r = ni_init_microcode(rdev);
1480 			if (r) {
1481 				DRM_ERROR("Failed to load firmware!\n");
1482 				return r;
1483 			}
1484 		}
1485 	} else {
1486 		if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
1487 			r = ni_init_microcode(rdev);
1488 			if (r) {
1489 				DRM_ERROR("Failed to load firmware!\n");
1490 				return r;
1491 			}
1492 		}
1493 
1494 		r = ni_mc_load_microcode(rdev);
1495 		if (r) {
1496 			DRM_ERROR("Failed to load MC firmware!\n");
1497 			return r;
1498 		}
1499 	}
1500 
1501 	r = r600_vram_scratch_init(rdev);
1502 	if (r)
1503 		return r;
1504 
1505 	evergreen_mc_program(rdev);
1506 	r = cayman_pcie_gart_enable(rdev);
1507 	if (r)
1508 		return r;
1509 	cayman_gpu_init(rdev);
1510 
1511 	r = evergreen_blit_init(rdev);
1512 	if (r) {
1513 		r600_blit_fini(rdev);
1514 		rdev->asic->copy.copy = NULL;
1515 		dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
1516 	}
1517 
1518 	/* allocate rlc buffers */
1519 	if (rdev->flags & RADEON_IS_IGP) {
1520 		r = si_rlc_init(rdev);
1521 		if (r) {
1522 			DRM_ERROR("Failed to init rlc BOs!\n");
1523 			return r;
1524 		}
1525 	}
1526 
1527 	/* allocate wb buffer */
1528 	r = radeon_wb_init(rdev);
1529 	if (r)
1530 		return r;
1531 
1532 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1533 	if (r) {
1534 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1535 		return r;
1536 	}
1537 
1538 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
1539 	if (r) {
1540 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1541 		return r;
1542 	}
1543 
1544 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
1545 	if (r) {
1546 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1547 		return r;
1548 	}
1549 
1550 	/* Enable IRQ */
1551 	r = r600_irq_init(rdev);
1552 	if (r) {
1553 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
1554 		radeon_irq_kms_fini(rdev);
1555 		return r;
1556 	}
1557 	evergreen_irq_set(rdev);
1558 
1559 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
1560 			     CP_RB0_RPTR, CP_RB0_WPTR,
1561 			     0, 0xfffff, RADEON_CP_PACKET2);
1562 	if (r)
1563 		return r;
1564 	r = cayman_cp_load_microcode(rdev);
1565 	if (r)
1566 		return r;
1567 	r = cayman_cp_resume(rdev);
1568 	if (r)
1569 		return r;
1570 
1571 	r = radeon_ib_pool_start(rdev);
1572 	if (r)
1573 		return r;
1574 
1575 	r = radeon_ib_ring_tests(rdev);
1576 	if (r)
1577 		return r;
1578 
1579 	r = radeon_vm_manager_start(rdev);
1580 	if (r)
1581 		return r;
1582 
1583 	return 0;
1584 }
1585 
1586 int cayman_resume(struct radeon_device *rdev)
1587 {
1588 	int r;
1589 
1590 	/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
1591 	 * posting will perform necessary task to bring back GPU into good
1592 	 * shape.
1593 	 */
1594 	/* post card */
1595 	atom_asic_init(rdev->mode_info.atom_context);
1596 
1597 	rdev->accel_working = true;
1598 	r = cayman_startup(rdev);
1599 	if (r) {
1600 		DRM_ERROR("cayman startup failed on resume\n");
1601 		rdev->accel_working = false;
1602 		return r;
1603 	}
1604 	return r;
1605 }
1606 
1607 int cayman_suspend(struct radeon_device *rdev)
1608 {
1609 	/* FIXME: we should wait for ring to be empty */
1610 	radeon_ib_pool_suspend(rdev);
1611 	radeon_vm_manager_suspend(rdev);
1612 	r600_blit_suspend(rdev);
1613 	cayman_cp_enable(rdev, false);
1614 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1615 	evergreen_irq_suspend(rdev);
1616 	radeon_wb_disable(rdev);
1617 	cayman_pcie_gart_disable(rdev);
1618 	return 0;
1619 }
1620 
1621 /* Plan is to move initialization in that function and use
1622  * helper function so that radeon_device_init pretty much
1623  * do nothing more than calling asic specific function. This
1624  * should also allow to remove a bunch of callback function
1625  * like vram_info.
1626  */
1627 int cayman_init(struct radeon_device *rdev)
1628 {
1629 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1630 	int r;
1631 
1632 	/* Read BIOS */
1633 	if (!radeon_get_bios(rdev)) {
1634 		if (ASIC_IS_AVIVO(rdev))
1635 			return -EINVAL;
1636 	}
1637 	/* Must be an ATOMBIOS */
1638 	if (!rdev->is_atom_bios) {
1639 		dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
1640 		return -EINVAL;
1641 	}
1642 	r = radeon_atombios_init(rdev);
1643 	if (r)
1644 		return r;
1645 
1646 	/* Post card if necessary */
1647 	if (!radeon_card_posted(rdev)) {
1648 		if (!rdev->bios) {
1649 			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
1650 			return -EINVAL;
1651 		}
1652 		DRM_INFO("GPU not posted. posting now...\n");
1653 		atom_asic_init(rdev->mode_info.atom_context);
1654 	}
1655 	/* Initialize scratch registers */
1656 	r600_scratch_init(rdev);
1657 	/* Initialize surface registers */
1658 	radeon_surface_init(rdev);
1659 	/* Initialize clocks */
1660 	radeon_get_clock_info(rdev->ddev);
1661 	/* Fence driver */
1662 	r = radeon_fence_driver_init(rdev);
1663 	if (r)
1664 		return r;
1665 	/* initialize memory controller */
1666 	r = evergreen_mc_init(rdev);
1667 	if (r)
1668 		return r;
1669 	/* Memory manager */
1670 	r = radeon_bo_init(rdev);
1671 	if (r)
1672 		return r;
1673 
1674 	r = radeon_irq_kms_init(rdev);
1675 	if (r)
1676 		return r;
1677 
1678 	ring->ring_obj = NULL;
1679 	r600_ring_init(rdev, ring, 1024 * 1024);
1680 
1681 	rdev->ih.ring_obj = NULL;
1682 	r600_ih_ring_init(rdev, 64 * 1024);
1683 
1684 	r = r600_pcie_gart_init(rdev);
1685 	if (r)
1686 		return r;
1687 
1688 	r = radeon_ib_pool_init(rdev);
1689 	rdev->accel_working = true;
1690 	if (r) {
1691 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1692 		rdev->accel_working = false;
1693 	}
1694 	r = radeon_vm_manager_init(rdev);
1695 	if (r) {
1696 		dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
1697 	}
1698 
1699 	r = cayman_startup(rdev);
1700 	if (r) {
1701 		dev_err(rdev->dev, "disabling GPU acceleration\n");
1702 		cayman_cp_fini(rdev);
1703 		r600_irq_fini(rdev);
1704 		if (rdev->flags & RADEON_IS_IGP)
1705 			si_rlc_fini(rdev);
1706 		radeon_wb_fini(rdev);
1707 		r100_ib_fini(rdev);
1708 		radeon_vm_manager_fini(rdev);
1709 		radeon_irq_kms_fini(rdev);
1710 		cayman_pcie_gart_fini(rdev);
1711 		rdev->accel_working = false;
1712 	}
1713 
1714 	/* Don't start up if the MC ucode is missing.
1715 	 * The default clocks and voltages before the MC ucode
1716 	 * is loaded are not suffient for advanced operations.
1717 	 *
1718 	 * We can skip this check for TN, because there is no MC
1719 	 * ucode.
1720 	 */
1721 	if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) {
1722 		DRM_ERROR("radeon: MC ucode required for NI+.\n");
1723 		return -EINVAL;
1724 	}
1725 
1726 	return 0;
1727 }
1728 
1729 void cayman_fini(struct radeon_device *rdev)
1730 {
1731 	r600_blit_fini(rdev);
1732 	cayman_cp_fini(rdev);
1733 	r600_irq_fini(rdev);
1734 	if (rdev->flags & RADEON_IS_IGP)
1735 		si_rlc_fini(rdev);
1736 	radeon_wb_fini(rdev);
1737 	radeon_vm_manager_fini(rdev);
1738 	r100_ib_fini(rdev);
1739 	radeon_irq_kms_fini(rdev);
1740 	cayman_pcie_gart_fini(rdev);
1741 	r600_vram_scratch_fini(rdev);
1742 	radeon_gem_fini(rdev);
1743 	radeon_fence_driver_fini(rdev);
1744 	radeon_bo_fini(rdev);
1745 	radeon_atombios_fini(rdev);
1746 	kfree(rdev->bios);
1747 	rdev->bios = NULL;
1748 }
1749 
1750 /*
1751  * vm
1752  */
1753 int cayman_vm_init(struct radeon_device *rdev)
1754 {
1755 	/* number of VMs */
1756 	rdev->vm_manager.nvm = 8;
1757 	/* base offset of vram pages */
1758 	if (rdev->flags & RADEON_IS_IGP) {
1759 		u64 tmp = RREG32(FUS_MC_VM_FB_OFFSET);
1760 		tmp <<= 22;
1761 		rdev->vm_manager.vram_base_offset = tmp;
1762 	} else
1763 		rdev->vm_manager.vram_base_offset = 0;
1764 	return 0;
1765 }
1766 
1767 void cayman_vm_fini(struct radeon_device *rdev)
1768 {
1769 }
1770 
1771 int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id)
1772 {
1773 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (id << 2), 0);
1774 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (id << 2), vm->last_pfn);
1775 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (id << 2), vm->pt_gpu_addr >> 12);
1776 	/* flush hdp cache */
1777 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1778 	/* bits 0-7 are the VM contexts0-7 */
1779 	WREG32(VM_INVALIDATE_REQUEST, 1 << id);
1780 	return 0;
1781 }
1782 
1783 void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm)
1784 {
1785 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (vm->id << 2), 0);
1786 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (vm->id << 2), 0);
1787 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0);
1788 	/* flush hdp cache */
1789 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1790 	/* bits 0-7 are the VM contexts0-7 */
1791 	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
1792 }
1793 
1794 void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm)
1795 {
1796 	if (vm->id == -1)
1797 		return;
1798 
1799 	/* flush hdp cache */
1800 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1801 	/* bits 0-7 are the VM contexts0-7 */
1802 	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
1803 }
1804 
1805 #define R600_PTE_VALID     (1 << 0)
1806 #define R600_PTE_SYSTEM    (1 << 1)
1807 #define R600_PTE_SNOOPED   (1 << 2)
1808 #define R600_PTE_READABLE  (1 << 5)
1809 #define R600_PTE_WRITEABLE (1 << 6)
1810 
1811 uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
1812 			      struct radeon_vm *vm,
1813 			      uint32_t flags)
1814 {
1815 	uint32_t r600_flags = 0;
1816 
1817 	r600_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_PTE_VALID : 0;
1818 	r600_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0;
1819 	r600_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0;
1820 	if (flags & RADEON_VM_PAGE_SYSTEM) {
1821 		r600_flags |= R600_PTE_SYSTEM;
1822 		r600_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0;
1823 	}
1824 	return r600_flags;
1825 }
1826 
1827 void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
1828 			unsigned pfn, uint64_t addr, uint32_t flags)
1829 {
1830 	void __iomem *ptr = (void *)vm->pt;
1831 
1832 	addr = addr & 0xFFFFFFFFFFFFF000ULL;
1833 	addr |= flags;
1834 	writeq(addr, ptr + (pfn * 8));
1835 }
1836