xref: /openbmc/linux/drivers/gpu/drm/radeon/ni.c (revision 6f72a631)
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 void cayman_gpu_init(struct radeon_device *rdev)
421 {
422 	u32 gb_addr_config = 0;
423 	u32 mc_shared_chmap, mc_arb_ramcfg;
424 	u32 cgts_tcc_disable;
425 	u32 sx_debug_1;
426 	u32 smx_dc_ctl0;
427 	u32 cgts_sm_ctrl_reg;
428 	u32 hdp_host_path_cntl;
429 	u32 tmp;
430 	u32 disabled_rb_mask;
431 	int i, j;
432 
433 	switch (rdev->family) {
434 	case CHIP_CAYMAN:
435 		rdev->config.cayman.max_shader_engines = 2;
436 		rdev->config.cayman.max_pipes_per_simd = 4;
437 		rdev->config.cayman.max_tile_pipes = 8;
438 		rdev->config.cayman.max_simds_per_se = 12;
439 		rdev->config.cayman.max_backends_per_se = 4;
440 		rdev->config.cayman.max_texture_channel_caches = 8;
441 		rdev->config.cayman.max_gprs = 256;
442 		rdev->config.cayman.max_threads = 256;
443 		rdev->config.cayman.max_gs_threads = 32;
444 		rdev->config.cayman.max_stack_entries = 512;
445 		rdev->config.cayman.sx_num_of_sets = 8;
446 		rdev->config.cayman.sx_max_export_size = 256;
447 		rdev->config.cayman.sx_max_export_pos_size = 64;
448 		rdev->config.cayman.sx_max_export_smx_size = 192;
449 		rdev->config.cayman.max_hw_contexts = 8;
450 		rdev->config.cayman.sq_num_cf_insts = 2;
451 
452 		rdev->config.cayman.sc_prim_fifo_size = 0x100;
453 		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
454 		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
455 		gb_addr_config = CAYMAN_GB_ADDR_CONFIG_GOLDEN;
456 		break;
457 	case CHIP_ARUBA:
458 	default:
459 		rdev->config.cayman.max_shader_engines = 1;
460 		rdev->config.cayman.max_pipes_per_simd = 4;
461 		rdev->config.cayman.max_tile_pipes = 2;
462 		if ((rdev->pdev->device == 0x9900) ||
463 		    (rdev->pdev->device == 0x9901) ||
464 		    (rdev->pdev->device == 0x9905) ||
465 		    (rdev->pdev->device == 0x9906) ||
466 		    (rdev->pdev->device == 0x9907) ||
467 		    (rdev->pdev->device == 0x9908) ||
468 		    (rdev->pdev->device == 0x9909) ||
469 		    (rdev->pdev->device == 0x9910) ||
470 		    (rdev->pdev->device == 0x9917)) {
471 			rdev->config.cayman.max_simds_per_se = 6;
472 			rdev->config.cayman.max_backends_per_se = 2;
473 		} else if ((rdev->pdev->device == 0x9903) ||
474 			   (rdev->pdev->device == 0x9904) ||
475 			   (rdev->pdev->device == 0x990A) ||
476 			   (rdev->pdev->device == 0x9913) ||
477 			   (rdev->pdev->device == 0x9918)) {
478 			rdev->config.cayman.max_simds_per_se = 4;
479 			rdev->config.cayman.max_backends_per_se = 2;
480 		} else if ((rdev->pdev->device == 0x9919) ||
481 			   (rdev->pdev->device == 0x9990) ||
482 			   (rdev->pdev->device == 0x9991) ||
483 			   (rdev->pdev->device == 0x9994) ||
484 			   (rdev->pdev->device == 0x99A0)) {
485 			rdev->config.cayman.max_simds_per_se = 3;
486 			rdev->config.cayman.max_backends_per_se = 1;
487 		} else {
488 			rdev->config.cayman.max_simds_per_se = 2;
489 			rdev->config.cayman.max_backends_per_se = 1;
490 		}
491 		rdev->config.cayman.max_texture_channel_caches = 2;
492 		rdev->config.cayman.max_gprs = 256;
493 		rdev->config.cayman.max_threads = 256;
494 		rdev->config.cayman.max_gs_threads = 32;
495 		rdev->config.cayman.max_stack_entries = 512;
496 		rdev->config.cayman.sx_num_of_sets = 8;
497 		rdev->config.cayman.sx_max_export_size = 256;
498 		rdev->config.cayman.sx_max_export_pos_size = 64;
499 		rdev->config.cayman.sx_max_export_smx_size = 192;
500 		rdev->config.cayman.max_hw_contexts = 8;
501 		rdev->config.cayman.sq_num_cf_insts = 2;
502 
503 		rdev->config.cayman.sc_prim_fifo_size = 0x40;
504 		rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
505 		rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
506 		gb_addr_config = ARUBA_GB_ADDR_CONFIG_GOLDEN;
507 		break;
508 	}
509 
510 	/* Initialize HDP */
511 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
512 		WREG32((0x2c14 + j), 0x00000000);
513 		WREG32((0x2c18 + j), 0x00000000);
514 		WREG32((0x2c1c + j), 0x00000000);
515 		WREG32((0x2c20 + j), 0x00000000);
516 		WREG32((0x2c24 + j), 0x00000000);
517 	}
518 
519 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
520 
521 	evergreen_fix_pci_max_read_req_size(rdev);
522 
523 	mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
524 	mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
525 
526 	tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
527 	rdev->config.cayman.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
528 	if (rdev->config.cayman.mem_row_size_in_kb > 4)
529 		rdev->config.cayman.mem_row_size_in_kb = 4;
530 	/* XXX use MC settings? */
531 	rdev->config.cayman.shader_engine_tile_size = 32;
532 	rdev->config.cayman.num_gpus = 1;
533 	rdev->config.cayman.multi_gpu_tile_size = 64;
534 
535 	tmp = (gb_addr_config & NUM_PIPES_MASK) >> NUM_PIPES_SHIFT;
536 	rdev->config.cayman.num_tile_pipes = (1 << tmp);
537 	tmp = (gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT;
538 	rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
539 	tmp = (gb_addr_config & NUM_SHADER_ENGINES_MASK) >> NUM_SHADER_ENGINES_SHIFT;
540 	rdev->config.cayman.num_shader_engines = tmp + 1;
541 	tmp = (gb_addr_config & NUM_GPUS_MASK) >> NUM_GPUS_SHIFT;
542 	rdev->config.cayman.num_gpus = tmp + 1;
543 	tmp = (gb_addr_config & MULTI_GPU_TILE_SIZE_MASK) >> MULTI_GPU_TILE_SIZE_SHIFT;
544 	rdev->config.cayman.multi_gpu_tile_size = 1 << tmp;
545 	tmp = (gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT;
546 	rdev->config.cayman.mem_row_size_in_kb = 1 << tmp;
547 
548 
549 	/* setup tiling info dword.  gb_addr_config is not adequate since it does
550 	 * not have bank info, so create a custom tiling dword.
551 	 * bits 3:0   num_pipes
552 	 * bits 7:4   num_banks
553 	 * bits 11:8  group_size
554 	 * bits 15:12 row_size
555 	 */
556 	rdev->config.cayman.tile_config = 0;
557 	switch (rdev->config.cayman.num_tile_pipes) {
558 	case 1:
559 	default:
560 		rdev->config.cayman.tile_config |= (0 << 0);
561 		break;
562 	case 2:
563 		rdev->config.cayman.tile_config |= (1 << 0);
564 		break;
565 	case 4:
566 		rdev->config.cayman.tile_config |= (2 << 0);
567 		break;
568 	case 8:
569 		rdev->config.cayman.tile_config |= (3 << 0);
570 		break;
571 	}
572 
573 	/* num banks is 8 on all fusion asics. 0 = 4, 1 = 8, 2 = 16 */
574 	if (rdev->flags & RADEON_IS_IGP)
575 		rdev->config.cayman.tile_config |= 1 << 4;
576 	else {
577 		if ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT)
578 			rdev->config.cayman.tile_config |= 1 << 4;
579 		else
580 			rdev->config.cayman.tile_config |= 0 << 4;
581 	}
582 	rdev->config.cayman.tile_config |=
583 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
584 	rdev->config.cayman.tile_config |=
585 		((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;
586 
587 	tmp = 0;
588 	for (i = (rdev->config.cayman.max_shader_engines - 1); i >= 0; i--) {
589 		u32 rb_disable_bitmap;
590 
591 		WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_INDEX(i));
592 		WREG32(RLC_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_INDEX(i));
593 		rb_disable_bitmap = (RREG32(CC_RB_BACKEND_DISABLE) & 0x00ff0000) >> 16;
594 		tmp <<= 4;
595 		tmp |= rb_disable_bitmap;
596 	}
597 	/* enabled rb are just the one not disabled :) */
598 	disabled_rb_mask = tmp;
599 
600 	WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);
601 	WREG32(RLC_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);
602 
603 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
604 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
605 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);
606 
607 	tmp = gb_addr_config & NUM_PIPES_MASK;
608 	tmp = r6xx_remap_render_backend(rdev, tmp,
609 					rdev->config.cayman.max_backends_per_se *
610 					rdev->config.cayman.max_shader_engines,
611 					CAYMAN_MAX_BACKENDS, disabled_rb_mask);
612 	WREG32(GB_BACKEND_MAP, tmp);
613 
614 	cgts_tcc_disable = 0xffff0000;
615 	for (i = 0; i < rdev->config.cayman.max_texture_channel_caches; i++)
616 		cgts_tcc_disable &= ~(1 << (16 + i));
617 	WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);
618 	WREG32(CGTS_SYS_TCC_DISABLE, cgts_tcc_disable);
619 	WREG32(CGTS_USER_SYS_TCC_DISABLE, cgts_tcc_disable);
620 	WREG32(CGTS_USER_TCC_DISABLE, cgts_tcc_disable);
621 
622 	/* reprogram the shader complex */
623 	cgts_sm_ctrl_reg = RREG32(CGTS_SM_CTRL_REG);
624 	for (i = 0; i < 16; i++)
625 		WREG32(CGTS_SM_CTRL_REG, OVERRIDE);
626 	WREG32(CGTS_SM_CTRL_REG, cgts_sm_ctrl_reg);
627 
628 	/* set HW defaults for 3D engine */
629 	WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));
630 
631 	sx_debug_1 = RREG32(SX_DEBUG_1);
632 	sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
633 	WREG32(SX_DEBUG_1, sx_debug_1);
634 
635 	smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
636 	smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
637 	smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets);
638 	WREG32(SMX_DC_CTL0, smx_dc_ctl0);
639 
640 	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE);
641 
642 	/* need to be explicitly zero-ed */
643 	WREG32(VGT_OFFCHIP_LDS_BASE, 0);
644 	WREG32(SQ_LSTMP_RING_BASE, 0);
645 	WREG32(SQ_HSTMP_RING_BASE, 0);
646 	WREG32(SQ_ESTMP_RING_BASE, 0);
647 	WREG32(SQ_GSTMP_RING_BASE, 0);
648 	WREG32(SQ_VSTMP_RING_BASE, 0);
649 	WREG32(SQ_PSTMP_RING_BASE, 0);
650 
651 	WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO);
652 
653 	WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) |
654 					POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) |
655 					SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1)));
656 
657 	WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) |
658 				 SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) |
659 				 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size)));
660 
661 
662 	WREG32(VGT_NUM_INSTANCES, 1);
663 
664 	WREG32(CP_PERFMON_CNTL, 0);
665 
666 	WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) |
667 				  FETCH_FIFO_HIWATER(0x4) |
668 				  DONE_FIFO_HIWATER(0xe0) |
669 				  ALU_UPDATE_FIFO_HIWATER(0x8)));
670 
671 	WREG32(SQ_GPR_RESOURCE_MGMT_1, NUM_CLAUSE_TEMP_GPRS(4));
672 	WREG32(SQ_CONFIG, (VC_ENABLE |
673 			   EXPORT_SRC_C |
674 			   GFX_PRIO(0) |
675 			   CS1_PRIO(0) |
676 			   CS2_PRIO(1)));
677 	WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);
678 
679 	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
680 					  FORCE_EOV_MAX_REZ_CNT(255)));
681 
682 	WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
683 	       AUTO_INVLD_EN(ES_AND_GS_AUTO));
684 
685 	WREG32(VGT_GS_VERTEX_REUSE, 16);
686 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
687 
688 	WREG32(CB_PERF_CTR0_SEL_0, 0);
689 	WREG32(CB_PERF_CTR0_SEL_1, 0);
690 	WREG32(CB_PERF_CTR1_SEL_0, 0);
691 	WREG32(CB_PERF_CTR1_SEL_1, 0);
692 	WREG32(CB_PERF_CTR2_SEL_0, 0);
693 	WREG32(CB_PERF_CTR2_SEL_1, 0);
694 	WREG32(CB_PERF_CTR3_SEL_0, 0);
695 	WREG32(CB_PERF_CTR3_SEL_1, 0);
696 
697 	tmp = RREG32(HDP_MISC_CNTL);
698 	tmp |= HDP_FLUSH_INVALIDATE_CACHE;
699 	WREG32(HDP_MISC_CNTL, tmp);
700 
701 	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
702 	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
703 
704 	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
705 
706 	udelay(50);
707 }
708 
709 /*
710  * GART
711  */
712 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
713 {
714 	/* flush hdp cache */
715 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
716 
717 	/* bits 0-7 are the VM contexts0-7 */
718 	WREG32(VM_INVALIDATE_REQUEST, 1);
719 }
720 
721 int cayman_pcie_gart_enable(struct radeon_device *rdev)
722 {
723 	int i, r;
724 
725 	if (rdev->gart.robj == NULL) {
726 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
727 		return -EINVAL;
728 	}
729 	r = radeon_gart_table_vram_pin(rdev);
730 	if (r)
731 		return r;
732 	radeon_gart_restore(rdev);
733 	/* Setup TLB control */
734 	WREG32(MC_VM_MX_L1_TLB_CNTL,
735 	       (0xA << 7) |
736 	       ENABLE_L1_TLB |
737 	       ENABLE_L1_FRAGMENT_PROCESSING |
738 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
739 	       ENABLE_ADVANCED_DRIVER_MODEL |
740 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
741 	/* Setup L2 cache */
742 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
743 	       ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
744 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
745 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
746 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
747 	WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
748 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
749 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
750 	/* setup context0 */
751 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
752 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
753 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
754 	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
755 			(u32)(rdev->dummy_page.addr >> 12));
756 	WREG32(VM_CONTEXT0_CNTL2, 0);
757 	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
758 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
759 
760 	WREG32(0x15D4, 0);
761 	WREG32(0x15D8, 0);
762 	WREG32(0x15DC, 0);
763 
764 	/* empty context1-7 */
765 	for (i = 1; i < 8; i++) {
766 		WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0);
767 		WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), 0);
768 		WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
769 			rdev->gart.table_addr >> 12);
770 	}
771 
772 	/* enable context1-7 */
773 	WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
774 	       (u32)(rdev->dummy_page.addr >> 12));
775 	WREG32(VM_CONTEXT1_CNTL2, 0);
776 	WREG32(VM_CONTEXT1_CNTL, 0);
777 	WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
778 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
779 
780 	cayman_pcie_gart_tlb_flush(rdev);
781 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
782 		 (unsigned)(rdev->mc.gtt_size >> 20),
783 		 (unsigned long long)rdev->gart.table_addr);
784 	rdev->gart.ready = true;
785 	return 0;
786 }
787 
788 void cayman_pcie_gart_disable(struct radeon_device *rdev)
789 {
790 	/* Disable all tables */
791 	WREG32(VM_CONTEXT0_CNTL, 0);
792 	WREG32(VM_CONTEXT1_CNTL, 0);
793 	/* Setup TLB control */
794 	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
795 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
796 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
797 	/* Setup L2 cache */
798 	WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
799 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
800 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
801 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
802 	WREG32(VM_L2_CNTL2, 0);
803 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
804 	       L2_CACHE_BIGK_FRAGMENT_SIZE(6));
805 	radeon_gart_table_vram_unpin(rdev);
806 }
807 
808 void cayman_pcie_gart_fini(struct radeon_device *rdev)
809 {
810 	cayman_pcie_gart_disable(rdev);
811 	radeon_gart_table_vram_free(rdev);
812 	radeon_gart_fini(rdev);
813 }
814 
815 void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
816 			      int ring, u32 cp_int_cntl)
817 {
818 	u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
819 
820 	WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
821 	WREG32(CP_INT_CNTL, cp_int_cntl);
822 }
823 
824 /*
825  * CP.
826  */
827 void cayman_fence_ring_emit(struct radeon_device *rdev,
828 			    struct radeon_fence *fence)
829 {
830 	struct radeon_ring *ring = &rdev->ring[fence->ring];
831 	u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
832 
833 	/* flush read cache over gart for this vmid */
834 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
835 	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
836 	radeon_ring_write(ring, 0);
837 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
838 	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
839 	radeon_ring_write(ring, 0xFFFFFFFF);
840 	radeon_ring_write(ring, 0);
841 	radeon_ring_write(ring, 10); /* poll interval */
842 	/* EVENT_WRITE_EOP - flush caches, send int */
843 	radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
844 	radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
845 	radeon_ring_write(ring, addr & 0xffffffff);
846 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
847 	radeon_ring_write(ring, fence->seq);
848 	radeon_ring_write(ring, 0);
849 }
850 
851 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
852 {
853 	struct radeon_ring *ring = &rdev->ring[ib->ring];
854 
855 	/* set to DX10/11 mode */
856 	radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
857 	radeon_ring_write(ring, 1);
858 	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
859 	radeon_ring_write(ring,
860 #ifdef __BIG_ENDIAN
861 			  (2 << 0) |
862 #endif
863 			  (ib->gpu_addr & 0xFFFFFFFC));
864 	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
865 	radeon_ring_write(ring, ib->length_dw | (ib->vm_id << 24));
866 
867 	/* flush read cache over gart for this vmid */
868 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
869 	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
870 	radeon_ring_write(ring, ib->vm_id);
871 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
872 	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
873 	radeon_ring_write(ring, 0xFFFFFFFF);
874 	radeon_ring_write(ring, 0);
875 	radeon_ring_write(ring, 10); /* poll interval */
876 }
877 
878 static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
879 {
880 	if (enable)
881 		WREG32(CP_ME_CNTL, 0);
882 	else {
883 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
884 		WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
885 		WREG32(SCRATCH_UMSK, 0);
886 	}
887 }
888 
889 static int cayman_cp_load_microcode(struct radeon_device *rdev)
890 {
891 	const __be32 *fw_data;
892 	int i;
893 
894 	if (!rdev->me_fw || !rdev->pfp_fw)
895 		return -EINVAL;
896 
897 	cayman_cp_enable(rdev, false);
898 
899 	fw_data = (const __be32 *)rdev->pfp_fw->data;
900 	WREG32(CP_PFP_UCODE_ADDR, 0);
901 	for (i = 0; i < CAYMAN_PFP_UCODE_SIZE; i++)
902 		WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
903 	WREG32(CP_PFP_UCODE_ADDR, 0);
904 
905 	fw_data = (const __be32 *)rdev->me_fw->data;
906 	WREG32(CP_ME_RAM_WADDR, 0);
907 	for (i = 0; i < CAYMAN_PM4_UCODE_SIZE; i++)
908 		WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
909 
910 	WREG32(CP_PFP_UCODE_ADDR, 0);
911 	WREG32(CP_ME_RAM_WADDR, 0);
912 	WREG32(CP_ME_RAM_RADDR, 0);
913 	return 0;
914 }
915 
916 static int cayman_cp_start(struct radeon_device *rdev)
917 {
918 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
919 	int r, i;
920 
921 	r = radeon_ring_lock(rdev, ring, 7);
922 	if (r) {
923 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
924 		return r;
925 	}
926 	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
927 	radeon_ring_write(ring, 0x1);
928 	radeon_ring_write(ring, 0x0);
929 	radeon_ring_write(ring, rdev->config.cayman.max_hw_contexts - 1);
930 	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
931 	radeon_ring_write(ring, 0);
932 	radeon_ring_write(ring, 0);
933 	radeon_ring_unlock_commit(rdev, ring);
934 
935 	cayman_cp_enable(rdev, true);
936 
937 	r = radeon_ring_lock(rdev, ring, cayman_default_size + 19);
938 	if (r) {
939 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
940 		return r;
941 	}
942 
943 	/* setup clear context state */
944 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
945 	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
946 
947 	for (i = 0; i < cayman_default_size; i++)
948 		radeon_ring_write(ring, cayman_default_state[i]);
949 
950 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
951 	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
952 
953 	/* set clear context state */
954 	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
955 	radeon_ring_write(ring, 0);
956 
957 	/* SQ_VTX_BASE_VTX_LOC */
958 	radeon_ring_write(ring, 0xc0026f00);
959 	radeon_ring_write(ring, 0x00000000);
960 	radeon_ring_write(ring, 0x00000000);
961 	radeon_ring_write(ring, 0x00000000);
962 
963 	/* Clear consts */
964 	radeon_ring_write(ring, 0xc0036f00);
965 	radeon_ring_write(ring, 0x00000bc4);
966 	radeon_ring_write(ring, 0xffffffff);
967 	radeon_ring_write(ring, 0xffffffff);
968 	radeon_ring_write(ring, 0xffffffff);
969 
970 	radeon_ring_write(ring, 0xc0026900);
971 	radeon_ring_write(ring, 0x00000316);
972 	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
973 	radeon_ring_write(ring, 0x00000010); /*  */
974 
975 	radeon_ring_unlock_commit(rdev, ring);
976 
977 	/* XXX init other rings */
978 
979 	return 0;
980 }
981 
982 static void cayman_cp_fini(struct radeon_device *rdev)
983 {
984 	cayman_cp_enable(rdev, false);
985 	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
986 }
987 
988 int cayman_cp_resume(struct radeon_device *rdev)
989 {
990 	static const int ridx[] = {
991 		RADEON_RING_TYPE_GFX_INDEX,
992 		CAYMAN_RING_TYPE_CP1_INDEX,
993 		CAYMAN_RING_TYPE_CP2_INDEX
994 	};
995 	static const unsigned cp_rb_cntl[] = {
996 		CP_RB0_CNTL,
997 		CP_RB1_CNTL,
998 		CP_RB2_CNTL,
999 	};
1000 	static const unsigned cp_rb_rptr_addr[] = {
1001 		CP_RB0_RPTR_ADDR,
1002 		CP_RB1_RPTR_ADDR,
1003 		CP_RB2_RPTR_ADDR
1004 	};
1005 	static const unsigned cp_rb_rptr_addr_hi[] = {
1006 		CP_RB0_RPTR_ADDR_HI,
1007 		CP_RB1_RPTR_ADDR_HI,
1008 		CP_RB2_RPTR_ADDR_HI
1009 	};
1010 	static const unsigned cp_rb_base[] = {
1011 		CP_RB0_BASE,
1012 		CP_RB1_BASE,
1013 		CP_RB2_BASE
1014 	};
1015 	struct radeon_ring *ring;
1016 	int i, r;
1017 
1018 	/* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1019 	WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1020 				 SOFT_RESET_PA |
1021 				 SOFT_RESET_SH |
1022 				 SOFT_RESET_VGT |
1023 				 SOFT_RESET_SPI |
1024 				 SOFT_RESET_SX));
1025 	RREG32(GRBM_SOFT_RESET);
1026 	mdelay(15);
1027 	WREG32(GRBM_SOFT_RESET, 0);
1028 	RREG32(GRBM_SOFT_RESET);
1029 
1030 	WREG32(CP_SEM_WAIT_TIMER, 0x0);
1031 	WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0);
1032 
1033 	/* Set the write pointer delay */
1034 	WREG32(CP_RB_WPTR_DELAY, 0);
1035 
1036 	WREG32(CP_DEBUG, (1 << 27));
1037 
1038 	/* set the wb address wether it's enabled or not */
1039 	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1040 	WREG32(SCRATCH_UMSK, 0xff);
1041 
1042 	for (i = 0; i < 3; ++i) {
1043 		uint32_t rb_cntl;
1044 		uint64_t addr;
1045 
1046 		/* Set ring buffer size */
1047 		ring = &rdev->ring[ridx[i]];
1048 		rb_cntl = drm_order(ring->ring_size / 8);
1049 		rb_cntl |= drm_order(RADEON_GPU_PAGE_SIZE/8) << 8;
1050 #ifdef __BIG_ENDIAN
1051 		rb_cntl |= BUF_SWAP_32BIT;
1052 #endif
1053 		WREG32(cp_rb_cntl[i], rb_cntl);
1054 
1055 		/* set the wb address wether it's enabled or not */
1056 		addr = rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET;
1057 		WREG32(cp_rb_rptr_addr[i], addr & 0xFFFFFFFC);
1058 		WREG32(cp_rb_rptr_addr_hi[i], upper_32_bits(addr) & 0xFF);
1059 	}
1060 
1061 	/* set the rb base addr, this causes an internal reset of ALL rings */
1062 	for (i = 0; i < 3; ++i) {
1063 		ring = &rdev->ring[ridx[i]];
1064 		WREG32(cp_rb_base[i], ring->gpu_addr >> 8);
1065 	}
1066 
1067 	for (i = 0; i < 3; ++i) {
1068 		/* Initialize the ring buffer's read and write pointers */
1069 		ring = &rdev->ring[ridx[i]];
1070 		WREG32_P(cp_rb_cntl[i], RB_RPTR_WR_ENA, ~RB_RPTR_WR_ENA);
1071 
1072 		ring->rptr = ring->wptr = 0;
1073 		WREG32(ring->rptr_reg, ring->rptr);
1074 		WREG32(ring->wptr_reg, ring->wptr);
1075 
1076 		mdelay(1);
1077 		WREG32_P(cp_rb_cntl[i], 0, ~RB_RPTR_WR_ENA);
1078 	}
1079 
1080 	/* start the rings */
1081 	cayman_cp_start(rdev);
1082 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
1083 	rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1084 	rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1085 	/* this only test cp0 */
1086 	r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1087 	if (r) {
1088 		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1089 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1090 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1091 		return r;
1092 	}
1093 
1094 	return 0;
1095 }
1096 
1097 static int cayman_gpu_soft_reset(struct radeon_device *rdev)
1098 {
1099 	struct evergreen_mc_save save;
1100 	u32 grbm_reset = 0;
1101 
1102 	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
1103 		return 0;
1104 
1105 	dev_info(rdev->dev, "GPU softreset \n");
1106 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1107 		RREG32(GRBM_STATUS));
1108 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1109 		RREG32(GRBM_STATUS_SE0));
1110 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1111 		RREG32(GRBM_STATUS_SE1));
1112 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1113 		RREG32(SRBM_STATUS));
1114 	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_ADDR   0x%08X\n",
1115 		 RREG32(0x14F8));
1116 	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
1117 		 RREG32(0x14D8));
1118 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1119 		 RREG32(0x14FC));
1120 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1121 		 RREG32(0x14DC));
1122 
1123 	evergreen_mc_stop(rdev, &save);
1124 	if (evergreen_mc_wait_for_idle(rdev)) {
1125 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1126 	}
1127 	/* Disable CP parsing/prefetching */
1128 	WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
1129 
1130 	/* reset all the gfx blocks */
1131 	grbm_reset = (SOFT_RESET_CP |
1132 		      SOFT_RESET_CB |
1133 		      SOFT_RESET_DB |
1134 		      SOFT_RESET_GDS |
1135 		      SOFT_RESET_PA |
1136 		      SOFT_RESET_SC |
1137 		      SOFT_RESET_SPI |
1138 		      SOFT_RESET_SH |
1139 		      SOFT_RESET_SX |
1140 		      SOFT_RESET_TC |
1141 		      SOFT_RESET_TA |
1142 		      SOFT_RESET_VGT |
1143 		      SOFT_RESET_IA);
1144 
1145 	dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
1146 	WREG32(GRBM_SOFT_RESET, grbm_reset);
1147 	(void)RREG32(GRBM_SOFT_RESET);
1148 	udelay(50);
1149 	WREG32(GRBM_SOFT_RESET, 0);
1150 	(void)RREG32(GRBM_SOFT_RESET);
1151 	/* Wait a little for things to settle down */
1152 	udelay(50);
1153 
1154 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
1155 		RREG32(GRBM_STATUS));
1156 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
1157 		RREG32(GRBM_STATUS_SE0));
1158 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
1159 		RREG32(GRBM_STATUS_SE1));
1160 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
1161 		RREG32(SRBM_STATUS));
1162 	evergreen_mc_resume(rdev, &save);
1163 	return 0;
1164 }
1165 
1166 int cayman_asic_reset(struct radeon_device *rdev)
1167 {
1168 	return cayman_gpu_soft_reset(rdev);
1169 }
1170 
1171 static int cayman_startup(struct radeon_device *rdev)
1172 {
1173 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1174 	int r;
1175 
1176 	/* enable pcie gen2 link */
1177 	evergreen_pcie_gen2_enable(rdev);
1178 
1179 	if (rdev->flags & RADEON_IS_IGP) {
1180 		if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
1181 			r = ni_init_microcode(rdev);
1182 			if (r) {
1183 				DRM_ERROR("Failed to load firmware!\n");
1184 				return r;
1185 			}
1186 		}
1187 	} else {
1188 		if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
1189 			r = ni_init_microcode(rdev);
1190 			if (r) {
1191 				DRM_ERROR("Failed to load firmware!\n");
1192 				return r;
1193 			}
1194 		}
1195 
1196 		r = ni_mc_load_microcode(rdev);
1197 		if (r) {
1198 			DRM_ERROR("Failed to load MC firmware!\n");
1199 			return r;
1200 		}
1201 	}
1202 
1203 	r = r600_vram_scratch_init(rdev);
1204 	if (r)
1205 		return r;
1206 
1207 	evergreen_mc_program(rdev);
1208 	r = cayman_pcie_gart_enable(rdev);
1209 	if (r)
1210 		return r;
1211 	cayman_gpu_init(rdev);
1212 
1213 	r = evergreen_blit_init(rdev);
1214 	if (r) {
1215 		r600_blit_fini(rdev);
1216 		rdev->asic->copy.copy = NULL;
1217 		dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
1218 	}
1219 
1220 	/* allocate rlc buffers */
1221 	if (rdev->flags & RADEON_IS_IGP) {
1222 		r = si_rlc_init(rdev);
1223 		if (r) {
1224 			DRM_ERROR("Failed to init rlc BOs!\n");
1225 			return r;
1226 		}
1227 	}
1228 
1229 	/* allocate wb buffer */
1230 	r = radeon_wb_init(rdev);
1231 	if (r)
1232 		return r;
1233 
1234 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1235 	if (r) {
1236 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1237 		return r;
1238 	}
1239 
1240 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
1241 	if (r) {
1242 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1243 		return r;
1244 	}
1245 
1246 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
1247 	if (r) {
1248 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1249 		return r;
1250 	}
1251 
1252 	/* Enable IRQ */
1253 	r = r600_irq_init(rdev);
1254 	if (r) {
1255 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
1256 		radeon_irq_kms_fini(rdev);
1257 		return r;
1258 	}
1259 	evergreen_irq_set(rdev);
1260 
1261 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
1262 			     CP_RB0_RPTR, CP_RB0_WPTR,
1263 			     0, 0xfffff, RADEON_CP_PACKET2);
1264 	if (r)
1265 		return r;
1266 	r = cayman_cp_load_microcode(rdev);
1267 	if (r)
1268 		return r;
1269 	r = cayman_cp_resume(rdev);
1270 	if (r)
1271 		return r;
1272 
1273 	r = radeon_ib_pool_init(rdev);
1274 	if (r) {
1275 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1276 		return r;
1277 	}
1278 
1279 	r = radeon_ib_ring_tests(rdev);
1280 	if (r)
1281 		return r;
1282 
1283 	r = radeon_vm_manager_start(rdev);
1284 	if (r)
1285 		return r;
1286 
1287 	r = r600_audio_init(rdev);
1288 	if (r)
1289 		return r;
1290 
1291 	return 0;
1292 }
1293 
1294 int cayman_resume(struct radeon_device *rdev)
1295 {
1296 	int r;
1297 
1298 	/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
1299 	 * posting will perform necessary task to bring back GPU into good
1300 	 * shape.
1301 	 */
1302 	/* post card */
1303 	atom_asic_init(rdev->mode_info.atom_context);
1304 
1305 	rdev->accel_working = true;
1306 	r = cayman_startup(rdev);
1307 	if (r) {
1308 		DRM_ERROR("cayman startup failed on resume\n");
1309 		rdev->accel_working = false;
1310 		return r;
1311 	}
1312 	return r;
1313 }
1314 
1315 int cayman_suspend(struct radeon_device *rdev)
1316 {
1317 	r600_audio_fini(rdev);
1318 	radeon_vm_manager_suspend(rdev);
1319 	cayman_cp_enable(rdev, false);
1320 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1321 	evergreen_irq_suspend(rdev);
1322 	radeon_wb_disable(rdev);
1323 	cayman_pcie_gart_disable(rdev);
1324 	return 0;
1325 }
1326 
1327 /* Plan is to move initialization in that function and use
1328  * helper function so that radeon_device_init pretty much
1329  * do nothing more than calling asic specific function. This
1330  * should also allow to remove a bunch of callback function
1331  * like vram_info.
1332  */
1333 int cayman_init(struct radeon_device *rdev)
1334 {
1335 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1336 	int r;
1337 
1338 	/* Read BIOS */
1339 	if (!radeon_get_bios(rdev)) {
1340 		if (ASIC_IS_AVIVO(rdev))
1341 			return -EINVAL;
1342 	}
1343 	/* Must be an ATOMBIOS */
1344 	if (!rdev->is_atom_bios) {
1345 		dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
1346 		return -EINVAL;
1347 	}
1348 	r = radeon_atombios_init(rdev);
1349 	if (r)
1350 		return r;
1351 
1352 	/* Post card if necessary */
1353 	if (!radeon_card_posted(rdev)) {
1354 		if (!rdev->bios) {
1355 			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
1356 			return -EINVAL;
1357 		}
1358 		DRM_INFO("GPU not posted. posting now...\n");
1359 		atom_asic_init(rdev->mode_info.atom_context);
1360 	}
1361 	/* Initialize scratch registers */
1362 	r600_scratch_init(rdev);
1363 	/* Initialize surface registers */
1364 	radeon_surface_init(rdev);
1365 	/* Initialize clocks */
1366 	radeon_get_clock_info(rdev->ddev);
1367 	/* Fence driver */
1368 	r = radeon_fence_driver_init(rdev);
1369 	if (r)
1370 		return r;
1371 	/* initialize memory controller */
1372 	r = evergreen_mc_init(rdev);
1373 	if (r)
1374 		return r;
1375 	/* Memory manager */
1376 	r = radeon_bo_init(rdev);
1377 	if (r)
1378 		return r;
1379 
1380 	r = radeon_irq_kms_init(rdev);
1381 	if (r)
1382 		return r;
1383 
1384 	ring->ring_obj = NULL;
1385 	r600_ring_init(rdev, ring, 1024 * 1024);
1386 
1387 	rdev->ih.ring_obj = NULL;
1388 	r600_ih_ring_init(rdev, 64 * 1024);
1389 
1390 	r = r600_pcie_gart_init(rdev);
1391 	if (r)
1392 		return r;
1393 
1394 	rdev->accel_working = true;
1395 	r = radeon_vm_manager_init(rdev);
1396 	if (r) {
1397 		dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
1398 	}
1399 
1400 	r = cayman_startup(rdev);
1401 	if (r) {
1402 		dev_err(rdev->dev, "disabling GPU acceleration\n");
1403 		cayman_cp_fini(rdev);
1404 		r600_irq_fini(rdev);
1405 		if (rdev->flags & RADEON_IS_IGP)
1406 			si_rlc_fini(rdev);
1407 		radeon_wb_fini(rdev);
1408 		radeon_ib_pool_fini(rdev);
1409 		radeon_vm_manager_fini(rdev);
1410 		radeon_irq_kms_fini(rdev);
1411 		cayman_pcie_gart_fini(rdev);
1412 		rdev->accel_working = false;
1413 	}
1414 
1415 	/* Don't start up if the MC ucode is missing.
1416 	 * The default clocks and voltages before the MC ucode
1417 	 * is loaded are not suffient for advanced operations.
1418 	 *
1419 	 * We can skip this check for TN, because there is no MC
1420 	 * ucode.
1421 	 */
1422 	if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) {
1423 		DRM_ERROR("radeon: MC ucode required for NI+.\n");
1424 		return -EINVAL;
1425 	}
1426 
1427 	return 0;
1428 }
1429 
1430 void cayman_fini(struct radeon_device *rdev)
1431 {
1432 	r600_blit_fini(rdev);
1433 	cayman_cp_fini(rdev);
1434 	r600_irq_fini(rdev);
1435 	if (rdev->flags & RADEON_IS_IGP)
1436 		si_rlc_fini(rdev);
1437 	radeon_wb_fini(rdev);
1438 	radeon_vm_manager_fini(rdev);
1439 	radeon_ib_pool_fini(rdev);
1440 	radeon_irq_kms_fini(rdev);
1441 	cayman_pcie_gart_fini(rdev);
1442 	r600_vram_scratch_fini(rdev);
1443 	radeon_gem_fini(rdev);
1444 	radeon_fence_driver_fini(rdev);
1445 	radeon_bo_fini(rdev);
1446 	radeon_atombios_fini(rdev);
1447 	kfree(rdev->bios);
1448 	rdev->bios = NULL;
1449 }
1450 
1451 /*
1452  * vm
1453  */
1454 int cayman_vm_init(struct radeon_device *rdev)
1455 {
1456 	/* number of VMs */
1457 	rdev->vm_manager.nvm = 8;
1458 	/* base offset of vram pages */
1459 	if (rdev->flags & RADEON_IS_IGP) {
1460 		u64 tmp = RREG32(FUS_MC_VM_FB_OFFSET);
1461 		tmp <<= 22;
1462 		rdev->vm_manager.vram_base_offset = tmp;
1463 	} else
1464 		rdev->vm_manager.vram_base_offset = 0;
1465 	return 0;
1466 }
1467 
1468 void cayman_vm_fini(struct radeon_device *rdev)
1469 {
1470 }
1471 
1472 int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id)
1473 {
1474 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (id << 2), 0);
1475 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (id << 2), vm->last_pfn);
1476 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (id << 2), vm->pt_gpu_addr >> 12);
1477 	/* flush hdp cache */
1478 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1479 	/* bits 0-7 are the VM contexts0-7 */
1480 	WREG32(VM_INVALIDATE_REQUEST, 1 << id);
1481 	return 0;
1482 }
1483 
1484 void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm)
1485 {
1486 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (vm->id << 2), 0);
1487 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (vm->id << 2), 0);
1488 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0);
1489 	/* flush hdp cache */
1490 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1491 	/* bits 0-7 are the VM contexts0-7 */
1492 	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
1493 }
1494 
1495 void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm)
1496 {
1497 	if (vm->id == -1)
1498 		return;
1499 
1500 	/* flush hdp cache */
1501 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1502 	/* bits 0-7 are the VM contexts0-7 */
1503 	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
1504 }
1505 
1506 #define R600_PTE_VALID     (1 << 0)
1507 #define R600_PTE_SYSTEM    (1 << 1)
1508 #define R600_PTE_SNOOPED   (1 << 2)
1509 #define R600_PTE_READABLE  (1 << 5)
1510 #define R600_PTE_WRITEABLE (1 << 6)
1511 
1512 uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
1513 			      struct radeon_vm *vm,
1514 			      uint32_t flags)
1515 {
1516 	uint32_t r600_flags = 0;
1517 
1518 	r600_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_PTE_VALID : 0;
1519 	r600_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0;
1520 	r600_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0;
1521 	if (flags & RADEON_VM_PAGE_SYSTEM) {
1522 		r600_flags |= R600_PTE_SYSTEM;
1523 		r600_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0;
1524 	}
1525 	return r600_flags;
1526 }
1527 
1528 void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
1529 			unsigned pfn, uint64_t addr, uint32_t flags)
1530 {
1531 	void __iomem *ptr = (void *)vm->pt;
1532 
1533 	addr = addr & 0xFFFFFFFFFFFFF000ULL;
1534 	addr |= flags;
1535 	writeq(addr, ptr + (pfn * 8));
1536 }
1537