xref: /openbmc/linux/drivers/gpu/drm/radeon/si.c (revision d0b73b48)
1 /*
2  * Copyright 2011 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 <drm/drmP.h>
29 #include "radeon.h"
30 #include "radeon_asic.h"
31 #include <drm/radeon_drm.h>
32 #include "sid.h"
33 #include "atom.h"
34 #include "si_blit_shaders.h"
35 
36 #define SI_PFP_UCODE_SIZE 2144
37 #define SI_PM4_UCODE_SIZE 2144
38 #define SI_CE_UCODE_SIZE 2144
39 #define SI_RLC_UCODE_SIZE 2048
40 #define SI_MC_UCODE_SIZE 7769
41 
42 MODULE_FIRMWARE("radeon/TAHITI_pfp.bin");
43 MODULE_FIRMWARE("radeon/TAHITI_me.bin");
44 MODULE_FIRMWARE("radeon/TAHITI_ce.bin");
45 MODULE_FIRMWARE("radeon/TAHITI_mc.bin");
46 MODULE_FIRMWARE("radeon/TAHITI_rlc.bin");
47 MODULE_FIRMWARE("radeon/PITCAIRN_pfp.bin");
48 MODULE_FIRMWARE("radeon/PITCAIRN_me.bin");
49 MODULE_FIRMWARE("radeon/PITCAIRN_ce.bin");
50 MODULE_FIRMWARE("radeon/PITCAIRN_mc.bin");
51 MODULE_FIRMWARE("radeon/PITCAIRN_rlc.bin");
52 MODULE_FIRMWARE("radeon/VERDE_pfp.bin");
53 MODULE_FIRMWARE("radeon/VERDE_me.bin");
54 MODULE_FIRMWARE("radeon/VERDE_ce.bin");
55 MODULE_FIRMWARE("radeon/VERDE_mc.bin");
56 MODULE_FIRMWARE("radeon/VERDE_rlc.bin");
57 
58 extern int r600_ih_ring_alloc(struct radeon_device *rdev);
59 extern void r600_ih_ring_fini(struct radeon_device *rdev);
60 extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
61 extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
62 extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
63 extern u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
64 
65 /* get temperature in millidegrees */
66 int si_get_temp(struct radeon_device *rdev)
67 {
68 	u32 temp;
69 	int actual_temp = 0;
70 
71 	temp = (RREG32(CG_MULT_THERMAL_STATUS) & CTF_TEMP_MASK) >>
72 		CTF_TEMP_SHIFT;
73 
74 	if (temp & 0x200)
75 		actual_temp = 255;
76 	else
77 		actual_temp = temp & 0x1ff;
78 
79 	actual_temp = (actual_temp * 1000);
80 
81 	return actual_temp;
82 }
83 
84 #define TAHITI_IO_MC_REGS_SIZE 36
85 
86 static const u32 tahiti_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
87 	{0x0000006f, 0x03044000},
88 	{0x00000070, 0x0480c018},
89 	{0x00000071, 0x00000040},
90 	{0x00000072, 0x01000000},
91 	{0x00000074, 0x000000ff},
92 	{0x00000075, 0x00143400},
93 	{0x00000076, 0x08ec0800},
94 	{0x00000077, 0x040000cc},
95 	{0x00000079, 0x00000000},
96 	{0x0000007a, 0x21000409},
97 	{0x0000007c, 0x00000000},
98 	{0x0000007d, 0xe8000000},
99 	{0x0000007e, 0x044408a8},
100 	{0x0000007f, 0x00000003},
101 	{0x00000080, 0x00000000},
102 	{0x00000081, 0x01000000},
103 	{0x00000082, 0x02000000},
104 	{0x00000083, 0x00000000},
105 	{0x00000084, 0xe3f3e4f4},
106 	{0x00000085, 0x00052024},
107 	{0x00000087, 0x00000000},
108 	{0x00000088, 0x66036603},
109 	{0x00000089, 0x01000000},
110 	{0x0000008b, 0x1c0a0000},
111 	{0x0000008c, 0xff010000},
112 	{0x0000008e, 0xffffefff},
113 	{0x0000008f, 0xfff3efff},
114 	{0x00000090, 0xfff3efbf},
115 	{0x00000094, 0x00101101},
116 	{0x00000095, 0x00000fff},
117 	{0x00000096, 0x00116fff},
118 	{0x00000097, 0x60010000},
119 	{0x00000098, 0x10010000},
120 	{0x00000099, 0x00006000},
121 	{0x0000009a, 0x00001000},
122 	{0x0000009f, 0x00a77400}
123 };
124 
125 static const u32 pitcairn_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
126 	{0x0000006f, 0x03044000},
127 	{0x00000070, 0x0480c018},
128 	{0x00000071, 0x00000040},
129 	{0x00000072, 0x01000000},
130 	{0x00000074, 0x000000ff},
131 	{0x00000075, 0x00143400},
132 	{0x00000076, 0x08ec0800},
133 	{0x00000077, 0x040000cc},
134 	{0x00000079, 0x00000000},
135 	{0x0000007a, 0x21000409},
136 	{0x0000007c, 0x00000000},
137 	{0x0000007d, 0xe8000000},
138 	{0x0000007e, 0x044408a8},
139 	{0x0000007f, 0x00000003},
140 	{0x00000080, 0x00000000},
141 	{0x00000081, 0x01000000},
142 	{0x00000082, 0x02000000},
143 	{0x00000083, 0x00000000},
144 	{0x00000084, 0xe3f3e4f4},
145 	{0x00000085, 0x00052024},
146 	{0x00000087, 0x00000000},
147 	{0x00000088, 0x66036603},
148 	{0x00000089, 0x01000000},
149 	{0x0000008b, 0x1c0a0000},
150 	{0x0000008c, 0xff010000},
151 	{0x0000008e, 0xffffefff},
152 	{0x0000008f, 0xfff3efff},
153 	{0x00000090, 0xfff3efbf},
154 	{0x00000094, 0x00101101},
155 	{0x00000095, 0x00000fff},
156 	{0x00000096, 0x00116fff},
157 	{0x00000097, 0x60010000},
158 	{0x00000098, 0x10010000},
159 	{0x00000099, 0x00006000},
160 	{0x0000009a, 0x00001000},
161 	{0x0000009f, 0x00a47400}
162 };
163 
164 static const u32 verde_io_mc_regs[TAHITI_IO_MC_REGS_SIZE][2] = {
165 	{0x0000006f, 0x03044000},
166 	{0x00000070, 0x0480c018},
167 	{0x00000071, 0x00000040},
168 	{0x00000072, 0x01000000},
169 	{0x00000074, 0x000000ff},
170 	{0x00000075, 0x00143400},
171 	{0x00000076, 0x08ec0800},
172 	{0x00000077, 0x040000cc},
173 	{0x00000079, 0x00000000},
174 	{0x0000007a, 0x21000409},
175 	{0x0000007c, 0x00000000},
176 	{0x0000007d, 0xe8000000},
177 	{0x0000007e, 0x044408a8},
178 	{0x0000007f, 0x00000003},
179 	{0x00000080, 0x00000000},
180 	{0x00000081, 0x01000000},
181 	{0x00000082, 0x02000000},
182 	{0x00000083, 0x00000000},
183 	{0x00000084, 0xe3f3e4f4},
184 	{0x00000085, 0x00052024},
185 	{0x00000087, 0x00000000},
186 	{0x00000088, 0x66036603},
187 	{0x00000089, 0x01000000},
188 	{0x0000008b, 0x1c0a0000},
189 	{0x0000008c, 0xff010000},
190 	{0x0000008e, 0xffffefff},
191 	{0x0000008f, 0xfff3efff},
192 	{0x00000090, 0xfff3efbf},
193 	{0x00000094, 0x00101101},
194 	{0x00000095, 0x00000fff},
195 	{0x00000096, 0x00116fff},
196 	{0x00000097, 0x60010000},
197 	{0x00000098, 0x10010000},
198 	{0x00000099, 0x00006000},
199 	{0x0000009a, 0x00001000},
200 	{0x0000009f, 0x00a37400}
201 };
202 
203 /* ucode loading */
204 static int si_mc_load_microcode(struct radeon_device *rdev)
205 {
206 	const __be32 *fw_data;
207 	u32 running, blackout = 0;
208 	u32 *io_mc_regs;
209 	int i, ucode_size, regs_size;
210 
211 	if (!rdev->mc_fw)
212 		return -EINVAL;
213 
214 	switch (rdev->family) {
215 	case CHIP_TAHITI:
216 		io_mc_regs = (u32 *)&tahiti_io_mc_regs;
217 		ucode_size = SI_MC_UCODE_SIZE;
218 		regs_size = TAHITI_IO_MC_REGS_SIZE;
219 		break;
220 	case CHIP_PITCAIRN:
221 		io_mc_regs = (u32 *)&pitcairn_io_mc_regs;
222 		ucode_size = SI_MC_UCODE_SIZE;
223 		regs_size = TAHITI_IO_MC_REGS_SIZE;
224 		break;
225 	case CHIP_VERDE:
226 	default:
227 		io_mc_regs = (u32 *)&verde_io_mc_regs;
228 		ucode_size = SI_MC_UCODE_SIZE;
229 		regs_size = TAHITI_IO_MC_REGS_SIZE;
230 		break;
231 	}
232 
233 	running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
234 
235 	if (running == 0) {
236 		if (running) {
237 			blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
238 			WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1);
239 		}
240 
241 		/* reset the engine and set to writable */
242 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
243 		WREG32(MC_SEQ_SUP_CNTL, 0x00000010);
244 
245 		/* load mc io regs */
246 		for (i = 0; i < regs_size; i++) {
247 			WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
248 			WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
249 		}
250 		/* load the MC ucode */
251 		fw_data = (const __be32 *)rdev->mc_fw->data;
252 		for (i = 0; i < ucode_size; i++)
253 			WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
254 
255 		/* put the engine back into the active state */
256 		WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
257 		WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
258 		WREG32(MC_SEQ_SUP_CNTL, 0x00000001);
259 
260 		/* wait for training to complete */
261 		for (i = 0; i < rdev->usec_timeout; i++) {
262 			if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D0)
263 				break;
264 			udelay(1);
265 		}
266 		for (i = 0; i < rdev->usec_timeout; i++) {
267 			if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D1)
268 				break;
269 			udelay(1);
270 		}
271 
272 		if (running)
273 			WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
274 	}
275 
276 	return 0;
277 }
278 
279 static int si_init_microcode(struct radeon_device *rdev)
280 {
281 	struct platform_device *pdev;
282 	const char *chip_name;
283 	const char *rlc_chip_name;
284 	size_t pfp_req_size, me_req_size, ce_req_size, rlc_req_size, mc_req_size;
285 	char fw_name[30];
286 	int err;
287 
288 	DRM_DEBUG("\n");
289 
290 	pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
291 	err = IS_ERR(pdev);
292 	if (err) {
293 		printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
294 		return -EINVAL;
295 	}
296 
297 	switch (rdev->family) {
298 	case CHIP_TAHITI:
299 		chip_name = "TAHITI";
300 		rlc_chip_name = "TAHITI";
301 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
302 		me_req_size = SI_PM4_UCODE_SIZE * 4;
303 		ce_req_size = SI_CE_UCODE_SIZE * 4;
304 		rlc_req_size = SI_RLC_UCODE_SIZE * 4;
305 		mc_req_size = SI_MC_UCODE_SIZE * 4;
306 		break;
307 	case CHIP_PITCAIRN:
308 		chip_name = "PITCAIRN";
309 		rlc_chip_name = "PITCAIRN";
310 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
311 		me_req_size = SI_PM4_UCODE_SIZE * 4;
312 		ce_req_size = SI_CE_UCODE_SIZE * 4;
313 		rlc_req_size = SI_RLC_UCODE_SIZE * 4;
314 		mc_req_size = SI_MC_UCODE_SIZE * 4;
315 		break;
316 	case CHIP_VERDE:
317 		chip_name = "VERDE";
318 		rlc_chip_name = "VERDE";
319 		pfp_req_size = SI_PFP_UCODE_SIZE * 4;
320 		me_req_size = SI_PM4_UCODE_SIZE * 4;
321 		ce_req_size = SI_CE_UCODE_SIZE * 4;
322 		rlc_req_size = SI_RLC_UCODE_SIZE * 4;
323 		mc_req_size = SI_MC_UCODE_SIZE * 4;
324 		break;
325 	default: BUG();
326 	}
327 
328 	DRM_INFO("Loading %s Microcode\n", chip_name);
329 
330 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
331 	err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
332 	if (err)
333 		goto out;
334 	if (rdev->pfp_fw->size != pfp_req_size) {
335 		printk(KERN_ERR
336 		       "si_cp: Bogus length %zu in firmware \"%s\"\n",
337 		       rdev->pfp_fw->size, fw_name);
338 		err = -EINVAL;
339 		goto out;
340 	}
341 
342 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
343 	err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
344 	if (err)
345 		goto out;
346 	if (rdev->me_fw->size != me_req_size) {
347 		printk(KERN_ERR
348 		       "si_cp: Bogus length %zu in firmware \"%s\"\n",
349 		       rdev->me_fw->size, fw_name);
350 		err = -EINVAL;
351 	}
352 
353 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_ce.bin", chip_name);
354 	err = request_firmware(&rdev->ce_fw, fw_name, &pdev->dev);
355 	if (err)
356 		goto out;
357 	if (rdev->ce_fw->size != ce_req_size) {
358 		printk(KERN_ERR
359 		       "si_cp: Bogus length %zu in firmware \"%s\"\n",
360 		       rdev->ce_fw->size, fw_name);
361 		err = -EINVAL;
362 	}
363 
364 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
365 	err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
366 	if (err)
367 		goto out;
368 	if (rdev->rlc_fw->size != rlc_req_size) {
369 		printk(KERN_ERR
370 		       "si_rlc: Bogus length %zu in firmware \"%s\"\n",
371 		       rdev->rlc_fw->size, fw_name);
372 		err = -EINVAL;
373 	}
374 
375 	snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
376 	err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
377 	if (err)
378 		goto out;
379 	if (rdev->mc_fw->size != mc_req_size) {
380 		printk(KERN_ERR
381 		       "si_mc: Bogus length %zu in firmware \"%s\"\n",
382 		       rdev->mc_fw->size, fw_name);
383 		err = -EINVAL;
384 	}
385 
386 out:
387 	platform_device_unregister(pdev);
388 
389 	if (err) {
390 		if (err != -EINVAL)
391 			printk(KERN_ERR
392 			       "si_cp: Failed to load firmware \"%s\"\n",
393 			       fw_name);
394 		release_firmware(rdev->pfp_fw);
395 		rdev->pfp_fw = NULL;
396 		release_firmware(rdev->me_fw);
397 		rdev->me_fw = NULL;
398 		release_firmware(rdev->ce_fw);
399 		rdev->ce_fw = NULL;
400 		release_firmware(rdev->rlc_fw);
401 		rdev->rlc_fw = NULL;
402 		release_firmware(rdev->mc_fw);
403 		rdev->mc_fw = NULL;
404 	}
405 	return err;
406 }
407 
408 /* watermark setup */
409 static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
410 				   struct radeon_crtc *radeon_crtc,
411 				   struct drm_display_mode *mode,
412 				   struct drm_display_mode *other_mode)
413 {
414 	u32 tmp;
415 	/*
416 	 * Line Buffer Setup
417 	 * There are 3 line buffers, each one shared by 2 display controllers.
418 	 * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
419 	 * the display controllers.  The paritioning is done via one of four
420 	 * preset allocations specified in bits 21:20:
421 	 *  0 - half lb
422 	 *  2 - whole lb, other crtc must be disabled
423 	 */
424 	/* this can get tricky if we have two large displays on a paired group
425 	 * of crtcs.  Ideally for multiple large displays we'd assign them to
426 	 * non-linked crtcs for maximum line buffer allocation.
427 	 */
428 	if (radeon_crtc->base.enabled && mode) {
429 		if (other_mode)
430 			tmp = 0; /* 1/2 */
431 		else
432 			tmp = 2; /* whole */
433 	} else
434 		tmp = 0;
435 
436 	WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset,
437 	       DC_LB_MEMORY_CONFIG(tmp));
438 
439 	if (radeon_crtc->base.enabled && mode) {
440 		switch (tmp) {
441 		case 0:
442 		default:
443 			return 4096 * 2;
444 		case 2:
445 			return 8192 * 2;
446 		}
447 	}
448 
449 	/* controller not enabled, so no lb used */
450 	return 0;
451 }
452 
453 static u32 si_get_number_of_dram_channels(struct radeon_device *rdev)
454 {
455 	u32 tmp = RREG32(MC_SHARED_CHMAP);
456 
457 	switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
458 	case 0:
459 	default:
460 		return 1;
461 	case 1:
462 		return 2;
463 	case 2:
464 		return 4;
465 	case 3:
466 		return 8;
467 	case 4:
468 		return 3;
469 	case 5:
470 		return 6;
471 	case 6:
472 		return 10;
473 	case 7:
474 		return 12;
475 	case 8:
476 		return 16;
477 	}
478 }
479 
480 struct dce6_wm_params {
481 	u32 dram_channels; /* number of dram channels */
482 	u32 yclk;          /* bandwidth per dram data pin in kHz */
483 	u32 sclk;          /* engine clock in kHz */
484 	u32 disp_clk;      /* display clock in kHz */
485 	u32 src_width;     /* viewport width */
486 	u32 active_time;   /* active display time in ns */
487 	u32 blank_time;    /* blank time in ns */
488 	bool interlaced;    /* mode is interlaced */
489 	fixed20_12 vsc;    /* vertical scale ratio */
490 	u32 num_heads;     /* number of active crtcs */
491 	u32 bytes_per_pixel; /* bytes per pixel display + overlay */
492 	u32 lb_size;       /* line buffer allocated to pipe */
493 	u32 vtaps;         /* vertical scaler taps */
494 };
495 
496 static u32 dce6_dram_bandwidth(struct dce6_wm_params *wm)
497 {
498 	/* Calculate raw DRAM Bandwidth */
499 	fixed20_12 dram_efficiency; /* 0.7 */
500 	fixed20_12 yclk, dram_channels, bandwidth;
501 	fixed20_12 a;
502 
503 	a.full = dfixed_const(1000);
504 	yclk.full = dfixed_const(wm->yclk);
505 	yclk.full = dfixed_div(yclk, a);
506 	dram_channels.full = dfixed_const(wm->dram_channels * 4);
507 	a.full = dfixed_const(10);
508 	dram_efficiency.full = dfixed_const(7);
509 	dram_efficiency.full = dfixed_div(dram_efficiency, a);
510 	bandwidth.full = dfixed_mul(dram_channels, yclk);
511 	bandwidth.full = dfixed_mul(bandwidth, dram_efficiency);
512 
513 	return dfixed_trunc(bandwidth);
514 }
515 
516 static u32 dce6_dram_bandwidth_for_display(struct dce6_wm_params *wm)
517 {
518 	/* Calculate DRAM Bandwidth and the part allocated to display. */
519 	fixed20_12 disp_dram_allocation; /* 0.3 to 0.7 */
520 	fixed20_12 yclk, dram_channels, bandwidth;
521 	fixed20_12 a;
522 
523 	a.full = dfixed_const(1000);
524 	yclk.full = dfixed_const(wm->yclk);
525 	yclk.full = dfixed_div(yclk, a);
526 	dram_channels.full = dfixed_const(wm->dram_channels * 4);
527 	a.full = dfixed_const(10);
528 	disp_dram_allocation.full = dfixed_const(3); /* XXX worse case value 0.3 */
529 	disp_dram_allocation.full = dfixed_div(disp_dram_allocation, a);
530 	bandwidth.full = dfixed_mul(dram_channels, yclk);
531 	bandwidth.full = dfixed_mul(bandwidth, disp_dram_allocation);
532 
533 	return dfixed_trunc(bandwidth);
534 }
535 
536 static u32 dce6_data_return_bandwidth(struct dce6_wm_params *wm)
537 {
538 	/* Calculate the display Data return Bandwidth */
539 	fixed20_12 return_efficiency; /* 0.8 */
540 	fixed20_12 sclk, bandwidth;
541 	fixed20_12 a;
542 
543 	a.full = dfixed_const(1000);
544 	sclk.full = dfixed_const(wm->sclk);
545 	sclk.full = dfixed_div(sclk, a);
546 	a.full = dfixed_const(10);
547 	return_efficiency.full = dfixed_const(8);
548 	return_efficiency.full = dfixed_div(return_efficiency, a);
549 	a.full = dfixed_const(32);
550 	bandwidth.full = dfixed_mul(a, sclk);
551 	bandwidth.full = dfixed_mul(bandwidth, return_efficiency);
552 
553 	return dfixed_trunc(bandwidth);
554 }
555 
556 static u32 dce6_get_dmif_bytes_per_request(struct dce6_wm_params *wm)
557 {
558 	return 32;
559 }
560 
561 static u32 dce6_dmif_request_bandwidth(struct dce6_wm_params *wm)
562 {
563 	/* Calculate the DMIF Request Bandwidth */
564 	fixed20_12 disp_clk_request_efficiency; /* 0.8 */
565 	fixed20_12 disp_clk, sclk, bandwidth;
566 	fixed20_12 a, b1, b2;
567 	u32 min_bandwidth;
568 
569 	a.full = dfixed_const(1000);
570 	disp_clk.full = dfixed_const(wm->disp_clk);
571 	disp_clk.full = dfixed_div(disp_clk, a);
572 	a.full = dfixed_const(dce6_get_dmif_bytes_per_request(wm) / 2);
573 	b1.full = dfixed_mul(a, disp_clk);
574 
575 	a.full = dfixed_const(1000);
576 	sclk.full = dfixed_const(wm->sclk);
577 	sclk.full = dfixed_div(sclk, a);
578 	a.full = dfixed_const(dce6_get_dmif_bytes_per_request(wm));
579 	b2.full = dfixed_mul(a, sclk);
580 
581 	a.full = dfixed_const(10);
582 	disp_clk_request_efficiency.full = dfixed_const(8);
583 	disp_clk_request_efficiency.full = dfixed_div(disp_clk_request_efficiency, a);
584 
585 	min_bandwidth = min(dfixed_trunc(b1), dfixed_trunc(b2));
586 
587 	a.full = dfixed_const(min_bandwidth);
588 	bandwidth.full = dfixed_mul(a, disp_clk_request_efficiency);
589 
590 	return dfixed_trunc(bandwidth);
591 }
592 
593 static u32 dce6_available_bandwidth(struct dce6_wm_params *wm)
594 {
595 	/* Calculate the Available bandwidth. Display can use this temporarily but not in average. */
596 	u32 dram_bandwidth = dce6_dram_bandwidth(wm);
597 	u32 data_return_bandwidth = dce6_data_return_bandwidth(wm);
598 	u32 dmif_req_bandwidth = dce6_dmif_request_bandwidth(wm);
599 
600 	return min(dram_bandwidth, min(data_return_bandwidth, dmif_req_bandwidth));
601 }
602 
603 static u32 dce6_average_bandwidth(struct dce6_wm_params *wm)
604 {
605 	/* Calculate the display mode Average Bandwidth
606 	 * DisplayMode should contain the source and destination dimensions,
607 	 * timing, etc.
608 	 */
609 	fixed20_12 bpp;
610 	fixed20_12 line_time;
611 	fixed20_12 src_width;
612 	fixed20_12 bandwidth;
613 	fixed20_12 a;
614 
615 	a.full = dfixed_const(1000);
616 	line_time.full = dfixed_const(wm->active_time + wm->blank_time);
617 	line_time.full = dfixed_div(line_time, a);
618 	bpp.full = dfixed_const(wm->bytes_per_pixel);
619 	src_width.full = dfixed_const(wm->src_width);
620 	bandwidth.full = dfixed_mul(src_width, bpp);
621 	bandwidth.full = dfixed_mul(bandwidth, wm->vsc);
622 	bandwidth.full = dfixed_div(bandwidth, line_time);
623 
624 	return dfixed_trunc(bandwidth);
625 }
626 
627 static u32 dce6_latency_watermark(struct dce6_wm_params *wm)
628 {
629 	/* First calcualte the latency in ns */
630 	u32 mc_latency = 2000; /* 2000 ns. */
631 	u32 available_bandwidth = dce6_available_bandwidth(wm);
632 	u32 worst_chunk_return_time = (512 * 8 * 1000) / available_bandwidth;
633 	u32 cursor_line_pair_return_time = (128 * 4 * 1000) / available_bandwidth;
634 	u32 dc_latency = 40000000 / wm->disp_clk; /* dc pipe latency */
635 	u32 other_heads_data_return_time = ((wm->num_heads + 1) * worst_chunk_return_time) +
636 		(wm->num_heads * cursor_line_pair_return_time);
637 	u32 latency = mc_latency + other_heads_data_return_time + dc_latency;
638 	u32 max_src_lines_per_dst_line, lb_fill_bw, line_fill_time;
639 	u32 tmp, dmif_size = 12288;
640 	fixed20_12 a, b, c;
641 
642 	if (wm->num_heads == 0)
643 		return 0;
644 
645 	a.full = dfixed_const(2);
646 	b.full = dfixed_const(1);
647 	if ((wm->vsc.full > a.full) ||
648 	    ((wm->vsc.full > b.full) && (wm->vtaps >= 3)) ||
649 	    (wm->vtaps >= 5) ||
650 	    ((wm->vsc.full >= a.full) && wm->interlaced))
651 		max_src_lines_per_dst_line = 4;
652 	else
653 		max_src_lines_per_dst_line = 2;
654 
655 	a.full = dfixed_const(available_bandwidth);
656 	b.full = dfixed_const(wm->num_heads);
657 	a.full = dfixed_div(a, b);
658 
659 	b.full = dfixed_const(mc_latency + 512);
660 	c.full = dfixed_const(wm->disp_clk);
661 	b.full = dfixed_div(b, c);
662 
663 	c.full = dfixed_const(dmif_size);
664 	b.full = dfixed_div(c, b);
665 
666 	tmp = min(dfixed_trunc(a), dfixed_trunc(b));
667 
668 	b.full = dfixed_const(1000);
669 	c.full = dfixed_const(wm->disp_clk);
670 	b.full = dfixed_div(c, b);
671 	c.full = dfixed_const(wm->bytes_per_pixel);
672 	b.full = dfixed_mul(b, c);
673 
674 	lb_fill_bw = min(tmp, dfixed_trunc(b));
675 
676 	a.full = dfixed_const(max_src_lines_per_dst_line * wm->src_width * wm->bytes_per_pixel);
677 	b.full = dfixed_const(1000);
678 	c.full = dfixed_const(lb_fill_bw);
679 	b.full = dfixed_div(c, b);
680 	a.full = dfixed_div(a, b);
681 	line_fill_time = dfixed_trunc(a);
682 
683 	if (line_fill_time < wm->active_time)
684 		return latency;
685 	else
686 		return latency + (line_fill_time - wm->active_time);
687 
688 }
689 
690 static bool dce6_average_bandwidth_vs_dram_bandwidth_for_display(struct dce6_wm_params *wm)
691 {
692 	if (dce6_average_bandwidth(wm) <=
693 	    (dce6_dram_bandwidth_for_display(wm) / wm->num_heads))
694 		return true;
695 	else
696 		return false;
697 };
698 
699 static bool dce6_average_bandwidth_vs_available_bandwidth(struct dce6_wm_params *wm)
700 {
701 	if (dce6_average_bandwidth(wm) <=
702 	    (dce6_available_bandwidth(wm) / wm->num_heads))
703 		return true;
704 	else
705 		return false;
706 };
707 
708 static bool dce6_check_latency_hiding(struct dce6_wm_params *wm)
709 {
710 	u32 lb_partitions = wm->lb_size / wm->src_width;
711 	u32 line_time = wm->active_time + wm->blank_time;
712 	u32 latency_tolerant_lines;
713 	u32 latency_hiding;
714 	fixed20_12 a;
715 
716 	a.full = dfixed_const(1);
717 	if (wm->vsc.full > a.full)
718 		latency_tolerant_lines = 1;
719 	else {
720 		if (lb_partitions <= (wm->vtaps + 1))
721 			latency_tolerant_lines = 1;
722 		else
723 			latency_tolerant_lines = 2;
724 	}
725 
726 	latency_hiding = (latency_tolerant_lines * line_time + wm->blank_time);
727 
728 	if (dce6_latency_watermark(wm) <= latency_hiding)
729 		return true;
730 	else
731 		return false;
732 }
733 
734 static void dce6_program_watermarks(struct radeon_device *rdev,
735 					 struct radeon_crtc *radeon_crtc,
736 					 u32 lb_size, u32 num_heads)
737 {
738 	struct drm_display_mode *mode = &radeon_crtc->base.mode;
739 	struct dce6_wm_params wm;
740 	u32 pixel_period;
741 	u32 line_time = 0;
742 	u32 latency_watermark_a = 0, latency_watermark_b = 0;
743 	u32 priority_a_mark = 0, priority_b_mark = 0;
744 	u32 priority_a_cnt = PRIORITY_OFF;
745 	u32 priority_b_cnt = PRIORITY_OFF;
746 	u32 tmp, arb_control3;
747 	fixed20_12 a, b, c;
748 
749 	if (radeon_crtc->base.enabled && num_heads && mode) {
750 		pixel_period = 1000000 / (u32)mode->clock;
751 		line_time = min((u32)mode->crtc_htotal * pixel_period, (u32)65535);
752 		priority_a_cnt = 0;
753 		priority_b_cnt = 0;
754 
755 		wm.yclk = rdev->pm.current_mclk * 10;
756 		wm.sclk = rdev->pm.current_sclk * 10;
757 		wm.disp_clk = mode->clock;
758 		wm.src_width = mode->crtc_hdisplay;
759 		wm.active_time = mode->crtc_hdisplay * pixel_period;
760 		wm.blank_time = line_time - wm.active_time;
761 		wm.interlaced = false;
762 		if (mode->flags & DRM_MODE_FLAG_INTERLACE)
763 			wm.interlaced = true;
764 		wm.vsc = radeon_crtc->vsc;
765 		wm.vtaps = 1;
766 		if (radeon_crtc->rmx_type != RMX_OFF)
767 			wm.vtaps = 2;
768 		wm.bytes_per_pixel = 4; /* XXX: get this from fb config */
769 		wm.lb_size = lb_size;
770 		if (rdev->family == CHIP_ARUBA)
771 			wm.dram_channels = evergreen_get_number_of_dram_channels(rdev);
772 		else
773 			wm.dram_channels = si_get_number_of_dram_channels(rdev);
774 		wm.num_heads = num_heads;
775 
776 		/* set for high clocks */
777 		latency_watermark_a = min(dce6_latency_watermark(&wm), (u32)65535);
778 		/* set for low clocks */
779 		/* wm.yclk = low clk; wm.sclk = low clk */
780 		latency_watermark_b = min(dce6_latency_watermark(&wm), (u32)65535);
781 
782 		/* possibly force display priority to high */
783 		/* should really do this at mode validation time... */
784 		if (!dce6_average_bandwidth_vs_dram_bandwidth_for_display(&wm) ||
785 		    !dce6_average_bandwidth_vs_available_bandwidth(&wm) ||
786 		    !dce6_check_latency_hiding(&wm) ||
787 		    (rdev->disp_priority == 2)) {
788 			DRM_DEBUG_KMS("force priority to high\n");
789 			priority_a_cnt |= PRIORITY_ALWAYS_ON;
790 			priority_b_cnt |= PRIORITY_ALWAYS_ON;
791 		}
792 
793 		a.full = dfixed_const(1000);
794 		b.full = dfixed_const(mode->clock);
795 		b.full = dfixed_div(b, a);
796 		c.full = dfixed_const(latency_watermark_a);
797 		c.full = dfixed_mul(c, b);
798 		c.full = dfixed_mul(c, radeon_crtc->hsc);
799 		c.full = dfixed_div(c, a);
800 		a.full = dfixed_const(16);
801 		c.full = dfixed_div(c, a);
802 		priority_a_mark = dfixed_trunc(c);
803 		priority_a_cnt |= priority_a_mark & PRIORITY_MARK_MASK;
804 
805 		a.full = dfixed_const(1000);
806 		b.full = dfixed_const(mode->clock);
807 		b.full = dfixed_div(b, a);
808 		c.full = dfixed_const(latency_watermark_b);
809 		c.full = dfixed_mul(c, b);
810 		c.full = dfixed_mul(c, radeon_crtc->hsc);
811 		c.full = dfixed_div(c, a);
812 		a.full = dfixed_const(16);
813 		c.full = dfixed_div(c, a);
814 		priority_b_mark = dfixed_trunc(c);
815 		priority_b_cnt |= priority_b_mark & PRIORITY_MARK_MASK;
816 	}
817 
818 	/* select wm A */
819 	arb_control3 = RREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset);
820 	tmp = arb_control3;
821 	tmp &= ~LATENCY_WATERMARK_MASK(3);
822 	tmp |= LATENCY_WATERMARK_MASK(1);
823 	WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, tmp);
824 	WREG32(DPG_PIPE_LATENCY_CONTROL + radeon_crtc->crtc_offset,
825 	       (LATENCY_LOW_WATERMARK(latency_watermark_a) |
826 		LATENCY_HIGH_WATERMARK(line_time)));
827 	/* select wm B */
828 	tmp = RREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset);
829 	tmp &= ~LATENCY_WATERMARK_MASK(3);
830 	tmp |= LATENCY_WATERMARK_MASK(2);
831 	WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, tmp);
832 	WREG32(DPG_PIPE_LATENCY_CONTROL + radeon_crtc->crtc_offset,
833 	       (LATENCY_LOW_WATERMARK(latency_watermark_b) |
834 		LATENCY_HIGH_WATERMARK(line_time)));
835 	/* restore original selection */
836 	WREG32(DPG_PIPE_ARBITRATION_CONTROL3 + radeon_crtc->crtc_offset, arb_control3);
837 
838 	/* write the priority marks */
839 	WREG32(PRIORITY_A_CNT + radeon_crtc->crtc_offset, priority_a_cnt);
840 	WREG32(PRIORITY_B_CNT + radeon_crtc->crtc_offset, priority_b_cnt);
841 
842 }
843 
844 void dce6_bandwidth_update(struct radeon_device *rdev)
845 {
846 	struct drm_display_mode *mode0 = NULL;
847 	struct drm_display_mode *mode1 = NULL;
848 	u32 num_heads = 0, lb_size;
849 	int i;
850 
851 	radeon_update_display_priority(rdev);
852 
853 	for (i = 0; i < rdev->num_crtc; i++) {
854 		if (rdev->mode_info.crtcs[i]->base.enabled)
855 			num_heads++;
856 	}
857 	for (i = 0; i < rdev->num_crtc; i += 2) {
858 		mode0 = &rdev->mode_info.crtcs[i]->base.mode;
859 		mode1 = &rdev->mode_info.crtcs[i+1]->base.mode;
860 		lb_size = dce6_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i], mode0, mode1);
861 		dce6_program_watermarks(rdev, rdev->mode_info.crtcs[i], lb_size, num_heads);
862 		lb_size = dce6_line_buffer_adjust(rdev, rdev->mode_info.crtcs[i+1], mode1, mode0);
863 		dce6_program_watermarks(rdev, rdev->mode_info.crtcs[i+1], lb_size, num_heads);
864 	}
865 }
866 
867 /*
868  * Core functions
869  */
870 static void si_tiling_mode_table_init(struct radeon_device *rdev)
871 {
872 	const u32 num_tile_mode_states = 32;
873 	u32 reg_offset, gb_tile_moden, split_equal_to_row_size;
874 
875 	switch (rdev->config.si.mem_row_size_in_kb) {
876 	case 1:
877 		split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_1KB;
878 		break;
879 	case 2:
880 	default:
881 		split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_2KB;
882 		break;
883 	case 4:
884 		split_equal_to_row_size = ADDR_SURF_TILE_SPLIT_4KB;
885 		break;
886 	}
887 
888 	if ((rdev->family == CHIP_TAHITI) ||
889 	    (rdev->family == CHIP_PITCAIRN)) {
890 		for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++) {
891 			switch (reg_offset) {
892 			case 0:  /* non-AA compressed depth or any compressed stencil */
893 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
894 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
895 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
896 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
897 						 NUM_BANKS(ADDR_SURF_16_BANK) |
898 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
899 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
900 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
901 				break;
902 			case 1:  /* 2xAA/4xAA compressed depth only */
903 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
904 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
905 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
906 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
907 						 NUM_BANKS(ADDR_SURF_16_BANK) |
908 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
909 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
910 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
911 				break;
912 			case 2:  /* 8xAA compressed depth only */
913 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
914 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
915 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
916 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
917 						 NUM_BANKS(ADDR_SURF_16_BANK) |
918 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
919 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
920 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
921 				break;
922 			case 3:  /* 2xAA/4xAA compressed depth with stencil (for depth buffer) */
923 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
924 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
925 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
926 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
927 						 NUM_BANKS(ADDR_SURF_16_BANK) |
928 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
929 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
930 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
931 				break;
932 			case 4:  /* Maps w/ a dimension less than the 2D macro-tile dimensions (for mipmapped depth textures) */
933 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
934 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
935 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
936 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
937 						 NUM_BANKS(ADDR_SURF_16_BANK) |
938 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
939 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
940 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
941 				break;
942 			case 5:  /* Uncompressed 16bpp depth - and stencil buffer allocated with it */
943 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
944 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
945 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
946 						 TILE_SPLIT(split_equal_to_row_size) |
947 						 NUM_BANKS(ADDR_SURF_16_BANK) |
948 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
949 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
950 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
951 				break;
952 			case 6:  /* Uncompressed 32bpp depth - and stencil buffer allocated with it */
953 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
954 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
955 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
956 						 TILE_SPLIT(split_equal_to_row_size) |
957 						 NUM_BANKS(ADDR_SURF_16_BANK) |
958 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
959 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
960 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
961 				break;
962 			case 7:  /* Uncompressed 8bpp stencil without depth (drivers typically do not use) */
963 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
964 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
965 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
966 						 TILE_SPLIT(split_equal_to_row_size) |
967 						 NUM_BANKS(ADDR_SURF_16_BANK) |
968 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
969 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
970 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
971 				break;
972 			case 8:  /* 1D and 1D Array Surfaces */
973 				gb_tile_moden = (ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
974 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
975 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
976 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
977 						 NUM_BANKS(ADDR_SURF_16_BANK) |
978 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
979 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
980 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
981 				break;
982 			case 9:  /* Displayable maps. */
983 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
984 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
985 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
986 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
987 						 NUM_BANKS(ADDR_SURF_16_BANK) |
988 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
989 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
990 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
991 				break;
992 			case 10:  /* Display 8bpp. */
993 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
994 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
995 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
996 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
997 						 NUM_BANKS(ADDR_SURF_16_BANK) |
998 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
999 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1000 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1001 				break;
1002 			case 11:  /* Display 16bpp. */
1003 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1004 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1005 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1006 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1007 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1008 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1009 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1010 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1011 				break;
1012 			case 12:  /* Display 32bpp. */
1013 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1014 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1015 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1016 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1017 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1018 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1019 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1020 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1021 				break;
1022 			case 13:  /* Thin. */
1023 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
1024 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1025 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1026 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1027 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1028 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1029 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1030 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1031 				break;
1032 			case 14:  /* Thin 8 bpp. */
1033 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1034 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1035 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1036 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1037 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1038 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1039 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1040 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1041 				break;
1042 			case 15:  /* Thin 16 bpp. */
1043 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1044 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1045 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1046 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1047 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1048 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1049 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1050 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1051 				break;
1052 			case 16:  /* Thin 32 bpp. */
1053 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1054 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1055 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1056 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1057 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1058 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1059 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1060 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1061 				break;
1062 			case 17:  /* Thin 64 bpp. */
1063 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1064 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1065 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1066 						 TILE_SPLIT(split_equal_to_row_size) |
1067 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1068 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1069 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1070 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1071 				break;
1072 			case 21:  /* 8 bpp PRT. */
1073 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1074 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1075 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1076 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1077 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1078 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
1079 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1080 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1081 				break;
1082 			case 22:  /* 16 bpp PRT */
1083 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1084 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1085 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1086 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1087 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1088 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1089 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1090 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1091 				break;
1092 			case 23:  /* 32 bpp PRT */
1093 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1094 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1095 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1096 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1097 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1098 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1099 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1100 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1101 				break;
1102 			case 24:  /* 64 bpp PRT */
1103 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1104 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1105 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1106 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1107 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1108 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1109 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1110 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1111 				break;
1112 			case 25:  /* 128 bpp PRT */
1113 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1114 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1115 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1116 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
1117 						 NUM_BANKS(ADDR_SURF_8_BANK) |
1118 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1119 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1120 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1121 				break;
1122 			default:
1123 				gb_tile_moden = 0;
1124 				break;
1125 			}
1126 			WREG32(GB_TILE_MODE0 + (reg_offset * 4), gb_tile_moden);
1127 		}
1128 	} else if (rdev->family == CHIP_VERDE) {
1129 		for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++) {
1130 			switch (reg_offset) {
1131 			case 0:  /* non-AA compressed depth or any compressed stencil */
1132 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1133 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1134 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1135 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1136 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1137 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1138 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1139 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1140 				break;
1141 			case 1:  /* 2xAA/4xAA compressed depth only */
1142 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1143 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1144 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1145 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
1146 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1147 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1148 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1149 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1150 				break;
1151 			case 2:  /* 8xAA compressed depth only */
1152 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1153 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1154 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1155 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1156 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1157 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1158 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1159 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1160 				break;
1161 			case 3:  /* 2xAA/4xAA compressed depth with stencil (for depth buffer) */
1162 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1163 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1164 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1165 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
1166 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1167 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1168 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1169 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1170 				break;
1171 			case 4:  /* Maps w/ a dimension less than the 2D macro-tile dimensions (for mipmapped depth textures) */
1172 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
1173 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1174 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1175 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1176 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1177 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1178 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1179 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1180 				break;
1181 			case 5:  /* Uncompressed 16bpp depth - and stencil buffer allocated with it */
1182 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1183 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1184 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1185 						 TILE_SPLIT(split_equal_to_row_size) |
1186 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1187 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1188 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1189 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1190 				break;
1191 			case 6:  /* Uncompressed 32bpp depth - and stencil buffer allocated with it */
1192 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1193 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1194 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1195 						 TILE_SPLIT(split_equal_to_row_size) |
1196 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1197 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1198 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1199 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1200 				break;
1201 			case 7:  /* Uncompressed 8bpp stencil without depth (drivers typically do not use) */
1202 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1203 						 MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
1204 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1205 						 TILE_SPLIT(split_equal_to_row_size) |
1206 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1207 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1208 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1209 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1210 				break;
1211 			case 8:  /* 1D and 1D Array Surfaces */
1212 				gb_tile_moden = (ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
1213 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1214 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1215 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1216 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1217 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1218 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1219 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1220 				break;
1221 			case 9:  /* Displayable maps. */
1222 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
1223 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1224 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1225 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1226 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1227 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1228 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1229 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1230 				break;
1231 			case 10:  /* Display 8bpp. */
1232 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1233 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1234 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1235 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1236 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1237 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1238 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1239 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1240 				break;
1241 			case 11:  /* Display 16bpp. */
1242 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1243 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1244 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1245 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1246 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1247 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1248 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1249 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1250 				break;
1251 			case 12:  /* Display 32bpp. */
1252 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1253 						 MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
1254 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1255 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1256 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1257 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1258 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1259 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1260 				break;
1261 			case 13:  /* Thin. */
1262 				gb_tile_moden = (ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
1263 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1264 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1265 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
1266 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1267 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1268 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1269 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1270 				break;
1271 			case 14:  /* Thin 8 bpp. */
1272 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1273 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1274 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1275 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1276 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1277 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1278 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1279 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1280 				break;
1281 			case 15:  /* Thin 16 bpp. */
1282 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1283 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1284 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1285 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1286 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1287 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1288 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1289 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1290 				break;
1291 			case 16:  /* Thin 32 bpp. */
1292 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1293 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1294 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1295 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1296 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1297 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1298 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1299 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1300 				break;
1301 			case 17:  /* Thin 64 bpp. */
1302 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1303 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1304 						 PIPE_CONFIG(ADDR_SURF_P4_8x16) |
1305 						 TILE_SPLIT(split_equal_to_row_size) |
1306 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1307 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1308 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1309 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1310 				break;
1311 			case 21:  /* 8 bpp PRT. */
1312 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1313 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1314 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1315 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1316 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1317 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
1318 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1319 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1320 				break;
1321 			case 22:  /* 16 bpp PRT */
1322 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1323 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1324 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1325 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1326 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1327 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1328 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
1329 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4));
1330 				break;
1331 			case 23:  /* 32 bpp PRT */
1332 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1333 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1334 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1335 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
1336 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1337 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1338 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
1339 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1340 				break;
1341 			case 24:  /* 64 bpp PRT */
1342 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1343 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1344 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1345 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
1346 						 NUM_BANKS(ADDR_SURF_16_BANK) |
1347 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1348 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1349 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2));
1350 				break;
1351 			case 25:  /* 128 bpp PRT */
1352 				gb_tile_moden = (ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
1353 						 MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
1354 						 PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
1355 						 TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
1356 						 NUM_BANKS(ADDR_SURF_8_BANK) |
1357 						 BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
1358 						 BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
1359 						 MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1));
1360 				break;
1361 			default:
1362 				gb_tile_moden = 0;
1363 				break;
1364 			}
1365 			WREG32(GB_TILE_MODE0 + (reg_offset * 4), gb_tile_moden);
1366 		}
1367 	} else
1368 		DRM_ERROR("unknown asic: 0x%x\n", rdev->family);
1369 }
1370 
1371 static void si_select_se_sh(struct radeon_device *rdev,
1372 			    u32 se_num, u32 sh_num)
1373 {
1374 	u32 data = INSTANCE_BROADCAST_WRITES;
1375 
1376 	if ((se_num == 0xffffffff) && (sh_num == 0xffffffff))
1377 		data = SH_BROADCAST_WRITES | SE_BROADCAST_WRITES;
1378 	else if (se_num == 0xffffffff)
1379 		data |= SE_BROADCAST_WRITES | SH_INDEX(sh_num);
1380 	else if (sh_num == 0xffffffff)
1381 		data |= SH_BROADCAST_WRITES | SE_INDEX(se_num);
1382 	else
1383 		data |= SH_INDEX(sh_num) | SE_INDEX(se_num);
1384 	WREG32(GRBM_GFX_INDEX, data);
1385 }
1386 
1387 static u32 si_create_bitmask(u32 bit_width)
1388 {
1389 	u32 i, mask = 0;
1390 
1391 	for (i = 0; i < bit_width; i++) {
1392 		mask <<= 1;
1393 		mask |= 1;
1394 	}
1395 	return mask;
1396 }
1397 
1398 static u32 si_get_cu_enabled(struct radeon_device *rdev, u32 cu_per_sh)
1399 {
1400 	u32 data, mask;
1401 
1402 	data = RREG32(CC_GC_SHADER_ARRAY_CONFIG);
1403 	if (data & 1)
1404 		data &= INACTIVE_CUS_MASK;
1405 	else
1406 		data = 0;
1407 	data |= RREG32(GC_USER_SHADER_ARRAY_CONFIG);
1408 
1409 	data >>= INACTIVE_CUS_SHIFT;
1410 
1411 	mask = si_create_bitmask(cu_per_sh);
1412 
1413 	return ~data & mask;
1414 }
1415 
1416 static void si_setup_spi(struct radeon_device *rdev,
1417 			 u32 se_num, u32 sh_per_se,
1418 			 u32 cu_per_sh)
1419 {
1420 	int i, j, k;
1421 	u32 data, mask, active_cu;
1422 
1423 	for (i = 0; i < se_num; i++) {
1424 		for (j = 0; j < sh_per_se; j++) {
1425 			si_select_se_sh(rdev, i, j);
1426 			data = RREG32(SPI_STATIC_THREAD_MGMT_3);
1427 			active_cu = si_get_cu_enabled(rdev, cu_per_sh);
1428 
1429 			mask = 1;
1430 			for (k = 0; k < 16; k++) {
1431 				mask <<= k;
1432 				if (active_cu & mask) {
1433 					data &= ~mask;
1434 					WREG32(SPI_STATIC_THREAD_MGMT_3, data);
1435 					break;
1436 				}
1437 			}
1438 		}
1439 	}
1440 	si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
1441 }
1442 
1443 static u32 si_get_rb_disabled(struct radeon_device *rdev,
1444 			      u32 max_rb_num, u32 se_num,
1445 			      u32 sh_per_se)
1446 {
1447 	u32 data, mask;
1448 
1449 	data = RREG32(CC_RB_BACKEND_DISABLE);
1450 	if (data & 1)
1451 		data &= BACKEND_DISABLE_MASK;
1452 	else
1453 		data = 0;
1454 	data |= RREG32(GC_USER_RB_BACKEND_DISABLE);
1455 
1456 	data >>= BACKEND_DISABLE_SHIFT;
1457 
1458 	mask = si_create_bitmask(max_rb_num / se_num / sh_per_se);
1459 
1460 	return data & mask;
1461 }
1462 
1463 static void si_setup_rb(struct radeon_device *rdev,
1464 			u32 se_num, u32 sh_per_se,
1465 			u32 max_rb_num)
1466 {
1467 	int i, j;
1468 	u32 data, mask;
1469 	u32 disabled_rbs = 0;
1470 	u32 enabled_rbs = 0;
1471 
1472 	for (i = 0; i < se_num; i++) {
1473 		for (j = 0; j < sh_per_se; j++) {
1474 			si_select_se_sh(rdev, i, j);
1475 			data = si_get_rb_disabled(rdev, max_rb_num, se_num, sh_per_se);
1476 			disabled_rbs |= data << ((i * sh_per_se + j) * TAHITI_RB_BITMAP_WIDTH_PER_SH);
1477 		}
1478 	}
1479 	si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
1480 
1481 	mask = 1;
1482 	for (i = 0; i < max_rb_num; i++) {
1483 		if (!(disabled_rbs & mask))
1484 			enabled_rbs |= mask;
1485 		mask <<= 1;
1486 	}
1487 
1488 	for (i = 0; i < se_num; i++) {
1489 		si_select_se_sh(rdev, i, 0xffffffff);
1490 		data = 0;
1491 		for (j = 0; j < sh_per_se; j++) {
1492 			switch (enabled_rbs & 3) {
1493 			case 1:
1494 				data |= (RASTER_CONFIG_RB_MAP_0 << (i * sh_per_se + j) * 2);
1495 				break;
1496 			case 2:
1497 				data |= (RASTER_CONFIG_RB_MAP_3 << (i * sh_per_se + j) * 2);
1498 				break;
1499 			case 3:
1500 			default:
1501 				data |= (RASTER_CONFIG_RB_MAP_2 << (i * sh_per_se + j) * 2);
1502 				break;
1503 			}
1504 			enabled_rbs >>= 2;
1505 		}
1506 		WREG32(PA_SC_RASTER_CONFIG, data);
1507 	}
1508 	si_select_se_sh(rdev, 0xffffffff, 0xffffffff);
1509 }
1510 
1511 static void si_gpu_init(struct radeon_device *rdev)
1512 {
1513 	u32 gb_addr_config = 0;
1514 	u32 mc_shared_chmap, mc_arb_ramcfg;
1515 	u32 sx_debug_1;
1516 	u32 hdp_host_path_cntl;
1517 	u32 tmp;
1518 	int i, j;
1519 
1520 	switch (rdev->family) {
1521 	case CHIP_TAHITI:
1522 		rdev->config.si.max_shader_engines = 2;
1523 		rdev->config.si.max_tile_pipes = 12;
1524 		rdev->config.si.max_cu_per_sh = 8;
1525 		rdev->config.si.max_sh_per_se = 2;
1526 		rdev->config.si.max_backends_per_se = 4;
1527 		rdev->config.si.max_texture_channel_caches = 12;
1528 		rdev->config.si.max_gprs = 256;
1529 		rdev->config.si.max_gs_threads = 32;
1530 		rdev->config.si.max_hw_contexts = 8;
1531 
1532 		rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
1533 		rdev->config.si.sc_prim_fifo_size_backend = 0x100;
1534 		rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
1535 		rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
1536 		gb_addr_config = TAHITI_GB_ADDR_CONFIG_GOLDEN;
1537 		break;
1538 	case CHIP_PITCAIRN:
1539 		rdev->config.si.max_shader_engines = 2;
1540 		rdev->config.si.max_tile_pipes = 8;
1541 		rdev->config.si.max_cu_per_sh = 5;
1542 		rdev->config.si.max_sh_per_se = 2;
1543 		rdev->config.si.max_backends_per_se = 4;
1544 		rdev->config.si.max_texture_channel_caches = 8;
1545 		rdev->config.si.max_gprs = 256;
1546 		rdev->config.si.max_gs_threads = 32;
1547 		rdev->config.si.max_hw_contexts = 8;
1548 
1549 		rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
1550 		rdev->config.si.sc_prim_fifo_size_backend = 0x100;
1551 		rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
1552 		rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
1553 		gb_addr_config = TAHITI_GB_ADDR_CONFIG_GOLDEN;
1554 		break;
1555 	case CHIP_VERDE:
1556 	default:
1557 		rdev->config.si.max_shader_engines = 1;
1558 		rdev->config.si.max_tile_pipes = 4;
1559 		rdev->config.si.max_cu_per_sh = 2;
1560 		rdev->config.si.max_sh_per_se = 2;
1561 		rdev->config.si.max_backends_per_se = 4;
1562 		rdev->config.si.max_texture_channel_caches = 4;
1563 		rdev->config.si.max_gprs = 256;
1564 		rdev->config.si.max_gs_threads = 32;
1565 		rdev->config.si.max_hw_contexts = 8;
1566 
1567 		rdev->config.si.sc_prim_fifo_size_frontend = 0x20;
1568 		rdev->config.si.sc_prim_fifo_size_backend = 0x40;
1569 		rdev->config.si.sc_hiz_tile_fifo_size = 0x30;
1570 		rdev->config.si.sc_earlyz_tile_fifo_size = 0x130;
1571 		gb_addr_config = VERDE_GB_ADDR_CONFIG_GOLDEN;
1572 		break;
1573 	}
1574 
1575 	/* Initialize HDP */
1576 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1577 		WREG32((0x2c14 + j), 0x00000000);
1578 		WREG32((0x2c18 + j), 0x00000000);
1579 		WREG32((0x2c1c + j), 0x00000000);
1580 		WREG32((0x2c20 + j), 0x00000000);
1581 		WREG32((0x2c24 + j), 0x00000000);
1582 	}
1583 
1584 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
1585 
1586 	evergreen_fix_pci_max_read_req_size(rdev);
1587 
1588 	WREG32(BIF_FB_EN, FB_READ_EN | FB_WRITE_EN);
1589 
1590 	mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
1591 	mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
1592 
1593 	rdev->config.si.num_tile_pipes = rdev->config.si.max_tile_pipes;
1594 	rdev->config.si.mem_max_burst_length_bytes = 256;
1595 	tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
1596 	rdev->config.si.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
1597 	if (rdev->config.si.mem_row_size_in_kb > 4)
1598 		rdev->config.si.mem_row_size_in_kb = 4;
1599 	/* XXX use MC settings? */
1600 	rdev->config.si.shader_engine_tile_size = 32;
1601 	rdev->config.si.num_gpus = 1;
1602 	rdev->config.si.multi_gpu_tile_size = 64;
1603 
1604 	/* fix up row size */
1605 	gb_addr_config &= ~ROW_SIZE_MASK;
1606 	switch (rdev->config.si.mem_row_size_in_kb) {
1607 	case 1:
1608 	default:
1609 		gb_addr_config |= ROW_SIZE(0);
1610 		break;
1611 	case 2:
1612 		gb_addr_config |= ROW_SIZE(1);
1613 		break;
1614 	case 4:
1615 		gb_addr_config |= ROW_SIZE(2);
1616 		break;
1617 	}
1618 
1619 	/* setup tiling info dword.  gb_addr_config is not adequate since it does
1620 	 * not have bank info, so create a custom tiling dword.
1621 	 * bits 3:0   num_pipes
1622 	 * bits 7:4   num_banks
1623 	 * bits 11:8  group_size
1624 	 * bits 15:12 row_size
1625 	 */
1626 	rdev->config.si.tile_config = 0;
1627 	switch (rdev->config.si.num_tile_pipes) {
1628 	case 1:
1629 		rdev->config.si.tile_config |= (0 << 0);
1630 		break;
1631 	case 2:
1632 		rdev->config.si.tile_config |= (1 << 0);
1633 		break;
1634 	case 4:
1635 		rdev->config.si.tile_config |= (2 << 0);
1636 		break;
1637 	case 8:
1638 	default:
1639 		/* XXX what about 12? */
1640 		rdev->config.si.tile_config |= (3 << 0);
1641 		break;
1642 	}
1643 	switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
1644 	case 0: /* four banks */
1645 		rdev->config.si.tile_config |= 0 << 4;
1646 		break;
1647 	case 1: /* eight banks */
1648 		rdev->config.si.tile_config |= 1 << 4;
1649 		break;
1650 	case 2: /* sixteen banks */
1651 	default:
1652 		rdev->config.si.tile_config |= 2 << 4;
1653 		break;
1654 	}
1655 	rdev->config.si.tile_config |=
1656 		((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
1657 	rdev->config.si.tile_config |=
1658 		((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;
1659 
1660 	WREG32(GB_ADDR_CONFIG, gb_addr_config);
1661 	WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
1662 	WREG32(HDP_ADDR_CONFIG, gb_addr_config);
1663 	WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
1664 	WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
1665 
1666 	si_tiling_mode_table_init(rdev);
1667 
1668 	si_setup_rb(rdev, rdev->config.si.max_shader_engines,
1669 		    rdev->config.si.max_sh_per_se,
1670 		    rdev->config.si.max_backends_per_se);
1671 
1672 	si_setup_spi(rdev, rdev->config.si.max_shader_engines,
1673 		     rdev->config.si.max_sh_per_se,
1674 		     rdev->config.si.max_cu_per_sh);
1675 
1676 
1677 	/* set HW defaults for 3D engine */
1678 	WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
1679 				     ROQ_IB2_START(0x2b)));
1680 	WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));
1681 
1682 	sx_debug_1 = RREG32(SX_DEBUG_1);
1683 	WREG32(SX_DEBUG_1, sx_debug_1);
1684 
1685 	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));
1686 
1687 	WREG32(PA_SC_FIFO_SIZE, (SC_FRONTEND_PRIM_FIFO_SIZE(rdev->config.si.sc_prim_fifo_size_frontend) |
1688 				 SC_BACKEND_PRIM_FIFO_SIZE(rdev->config.si.sc_prim_fifo_size_backend) |
1689 				 SC_HIZ_TILE_FIFO_SIZE(rdev->config.si.sc_hiz_tile_fifo_size) |
1690 				 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.si.sc_earlyz_tile_fifo_size)));
1691 
1692 	WREG32(VGT_NUM_INSTANCES, 1);
1693 
1694 	WREG32(CP_PERFMON_CNTL, 0);
1695 
1696 	WREG32(SQ_CONFIG, 0);
1697 
1698 	WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
1699 					  FORCE_EOV_MAX_REZ_CNT(255)));
1700 
1701 	WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
1702 	       AUTO_INVLD_EN(ES_AND_GS_AUTO));
1703 
1704 	WREG32(VGT_GS_VERTEX_REUSE, 16);
1705 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
1706 
1707 	WREG32(CB_PERFCOUNTER0_SELECT0, 0);
1708 	WREG32(CB_PERFCOUNTER0_SELECT1, 0);
1709 	WREG32(CB_PERFCOUNTER1_SELECT0, 0);
1710 	WREG32(CB_PERFCOUNTER1_SELECT1, 0);
1711 	WREG32(CB_PERFCOUNTER2_SELECT0, 0);
1712 	WREG32(CB_PERFCOUNTER2_SELECT1, 0);
1713 	WREG32(CB_PERFCOUNTER3_SELECT0, 0);
1714 	WREG32(CB_PERFCOUNTER3_SELECT1, 0);
1715 
1716 	tmp = RREG32(HDP_MISC_CNTL);
1717 	tmp |= HDP_FLUSH_INVALIDATE_CACHE;
1718 	WREG32(HDP_MISC_CNTL, tmp);
1719 
1720 	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
1721 	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
1722 
1723 	WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
1724 
1725 	udelay(50);
1726 }
1727 
1728 /*
1729  * GPU scratch registers helpers function.
1730  */
1731 static void si_scratch_init(struct radeon_device *rdev)
1732 {
1733 	int i;
1734 
1735 	rdev->scratch.num_reg = 7;
1736 	rdev->scratch.reg_base = SCRATCH_REG0;
1737 	for (i = 0; i < rdev->scratch.num_reg; i++) {
1738 		rdev->scratch.free[i] = true;
1739 		rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
1740 	}
1741 }
1742 
1743 void si_fence_ring_emit(struct radeon_device *rdev,
1744 			struct radeon_fence *fence)
1745 {
1746 	struct radeon_ring *ring = &rdev->ring[fence->ring];
1747 	u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
1748 
1749 	/* flush read cache over gart */
1750 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1751 	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
1752 	radeon_ring_write(ring, 0);
1753 	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
1754 	radeon_ring_write(ring, PACKET3_TCL1_ACTION_ENA |
1755 			  PACKET3_TC_ACTION_ENA |
1756 			  PACKET3_SH_KCACHE_ACTION_ENA |
1757 			  PACKET3_SH_ICACHE_ACTION_ENA);
1758 	radeon_ring_write(ring, 0xFFFFFFFF);
1759 	radeon_ring_write(ring, 0);
1760 	radeon_ring_write(ring, 10); /* poll interval */
1761 	/* EVENT_WRITE_EOP - flush caches, send int */
1762 	radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
1763 	radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5));
1764 	radeon_ring_write(ring, addr & 0xffffffff);
1765 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
1766 	radeon_ring_write(ring, fence->seq);
1767 	radeon_ring_write(ring, 0);
1768 }
1769 
1770 /*
1771  * IB stuff
1772  */
1773 void si_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
1774 {
1775 	struct radeon_ring *ring = &rdev->ring[ib->ring];
1776 	u32 header;
1777 
1778 	if (ib->is_const_ib) {
1779 		/* set switch buffer packet before const IB */
1780 		radeon_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
1781 		radeon_ring_write(ring, 0);
1782 
1783 		header = PACKET3(PACKET3_INDIRECT_BUFFER_CONST, 2);
1784 	} else {
1785 		u32 next_rptr;
1786 		if (ring->rptr_save_reg) {
1787 			next_rptr = ring->wptr + 3 + 4 + 8;
1788 			radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1789 			radeon_ring_write(ring, ((ring->rptr_save_reg -
1790 						  PACKET3_SET_CONFIG_REG_START) >> 2));
1791 			radeon_ring_write(ring, next_rptr);
1792 		} else if (rdev->wb.enabled) {
1793 			next_rptr = ring->wptr + 5 + 4 + 8;
1794 			radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
1795 			radeon_ring_write(ring, (1 << 8));
1796 			radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
1797 			radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
1798 			radeon_ring_write(ring, next_rptr);
1799 		}
1800 
1801 		header = PACKET3(PACKET3_INDIRECT_BUFFER, 2);
1802 	}
1803 
1804 	radeon_ring_write(ring, header);
1805 	radeon_ring_write(ring,
1806 #ifdef __BIG_ENDIAN
1807 			  (2 << 0) |
1808 #endif
1809 			  (ib->gpu_addr & 0xFFFFFFFC));
1810 	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFFFF);
1811 	radeon_ring_write(ring, ib->length_dw |
1812 			  (ib->vm ? (ib->vm->id << 24) : 0));
1813 
1814 	if (!ib->is_const_ib) {
1815 		/* flush read cache over gart for this vmid */
1816 		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
1817 		radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
1818 		radeon_ring_write(ring, ib->vm ? ib->vm->id : 0);
1819 		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
1820 		radeon_ring_write(ring, PACKET3_TCL1_ACTION_ENA |
1821 				  PACKET3_TC_ACTION_ENA |
1822 				  PACKET3_SH_KCACHE_ACTION_ENA |
1823 				  PACKET3_SH_ICACHE_ACTION_ENA);
1824 		radeon_ring_write(ring, 0xFFFFFFFF);
1825 		radeon_ring_write(ring, 0);
1826 		radeon_ring_write(ring, 10); /* poll interval */
1827 	}
1828 }
1829 
1830 /*
1831  * CP.
1832  */
1833 static void si_cp_enable(struct radeon_device *rdev, bool enable)
1834 {
1835 	if (enable)
1836 		WREG32(CP_ME_CNTL, 0);
1837 	else {
1838 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
1839 		WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT));
1840 		WREG32(SCRATCH_UMSK, 0);
1841 		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1842 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1843 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1844 	}
1845 	udelay(50);
1846 }
1847 
1848 static int si_cp_load_microcode(struct radeon_device *rdev)
1849 {
1850 	const __be32 *fw_data;
1851 	int i;
1852 
1853 	if (!rdev->me_fw || !rdev->pfp_fw)
1854 		return -EINVAL;
1855 
1856 	si_cp_enable(rdev, false);
1857 
1858 	/* PFP */
1859 	fw_data = (const __be32 *)rdev->pfp_fw->data;
1860 	WREG32(CP_PFP_UCODE_ADDR, 0);
1861 	for (i = 0; i < SI_PFP_UCODE_SIZE; i++)
1862 		WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
1863 	WREG32(CP_PFP_UCODE_ADDR, 0);
1864 
1865 	/* CE */
1866 	fw_data = (const __be32 *)rdev->ce_fw->data;
1867 	WREG32(CP_CE_UCODE_ADDR, 0);
1868 	for (i = 0; i < SI_CE_UCODE_SIZE; i++)
1869 		WREG32(CP_CE_UCODE_DATA, be32_to_cpup(fw_data++));
1870 	WREG32(CP_CE_UCODE_ADDR, 0);
1871 
1872 	/* ME */
1873 	fw_data = (const __be32 *)rdev->me_fw->data;
1874 	WREG32(CP_ME_RAM_WADDR, 0);
1875 	for (i = 0; i < SI_PM4_UCODE_SIZE; i++)
1876 		WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
1877 	WREG32(CP_ME_RAM_WADDR, 0);
1878 
1879 	WREG32(CP_PFP_UCODE_ADDR, 0);
1880 	WREG32(CP_CE_UCODE_ADDR, 0);
1881 	WREG32(CP_ME_RAM_WADDR, 0);
1882 	WREG32(CP_ME_RAM_RADDR, 0);
1883 	return 0;
1884 }
1885 
1886 static int si_cp_start(struct radeon_device *rdev)
1887 {
1888 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1889 	int r, i;
1890 
1891 	r = radeon_ring_lock(rdev, ring, 7 + 4);
1892 	if (r) {
1893 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1894 		return r;
1895 	}
1896 	/* init the CP */
1897 	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
1898 	radeon_ring_write(ring, 0x1);
1899 	radeon_ring_write(ring, 0x0);
1900 	radeon_ring_write(ring, rdev->config.si.max_hw_contexts - 1);
1901 	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
1902 	radeon_ring_write(ring, 0);
1903 	radeon_ring_write(ring, 0);
1904 
1905 	/* init the CE partitions */
1906 	radeon_ring_write(ring, PACKET3(PACKET3_SET_BASE, 2));
1907 	radeon_ring_write(ring, PACKET3_BASE_INDEX(CE_PARTITION_BASE));
1908 	radeon_ring_write(ring, 0xc000);
1909 	radeon_ring_write(ring, 0xe000);
1910 	radeon_ring_unlock_commit(rdev, ring);
1911 
1912 	si_cp_enable(rdev, true);
1913 
1914 	r = radeon_ring_lock(rdev, ring, si_default_size + 10);
1915 	if (r) {
1916 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
1917 		return r;
1918 	}
1919 
1920 	/* setup clear context state */
1921 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1922 	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
1923 
1924 	for (i = 0; i < si_default_size; i++)
1925 		radeon_ring_write(ring, si_default_state[i]);
1926 
1927 	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
1928 	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
1929 
1930 	/* set clear context state */
1931 	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
1932 	radeon_ring_write(ring, 0);
1933 
1934 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
1935 	radeon_ring_write(ring, 0x00000316);
1936 	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
1937 	radeon_ring_write(ring, 0x00000010); /* VGT_OUT_DEALLOC_CNTL */
1938 
1939 	radeon_ring_unlock_commit(rdev, ring);
1940 
1941 	for (i = RADEON_RING_TYPE_GFX_INDEX; i <= CAYMAN_RING_TYPE_CP2_INDEX; ++i) {
1942 		ring = &rdev->ring[i];
1943 		r = radeon_ring_lock(rdev, ring, 2);
1944 
1945 		/* clear the compute context state */
1946 		radeon_ring_write(ring, PACKET3_COMPUTE(PACKET3_CLEAR_STATE, 0));
1947 		radeon_ring_write(ring, 0);
1948 
1949 		radeon_ring_unlock_commit(rdev, ring);
1950 	}
1951 
1952 	return 0;
1953 }
1954 
1955 static void si_cp_fini(struct radeon_device *rdev)
1956 {
1957 	struct radeon_ring *ring;
1958 	si_cp_enable(rdev, false);
1959 
1960 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1961 	radeon_ring_fini(rdev, ring);
1962 	radeon_scratch_free(rdev, ring->rptr_save_reg);
1963 
1964 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
1965 	radeon_ring_fini(rdev, ring);
1966 	radeon_scratch_free(rdev, ring->rptr_save_reg);
1967 
1968 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
1969 	radeon_ring_fini(rdev, ring);
1970 	radeon_scratch_free(rdev, ring->rptr_save_reg);
1971 }
1972 
1973 static int si_cp_resume(struct radeon_device *rdev)
1974 {
1975 	struct radeon_ring *ring;
1976 	u32 tmp;
1977 	u32 rb_bufsz;
1978 	int r;
1979 
1980 	/* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1981 	WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1982 				 SOFT_RESET_PA |
1983 				 SOFT_RESET_VGT |
1984 				 SOFT_RESET_SPI |
1985 				 SOFT_RESET_SX));
1986 	RREG32(GRBM_SOFT_RESET);
1987 	mdelay(15);
1988 	WREG32(GRBM_SOFT_RESET, 0);
1989 	RREG32(GRBM_SOFT_RESET);
1990 
1991 	WREG32(CP_SEM_WAIT_TIMER, 0x0);
1992 	WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0);
1993 
1994 	/* Set the write pointer delay */
1995 	WREG32(CP_RB_WPTR_DELAY, 0);
1996 
1997 	WREG32(CP_DEBUG, 0);
1998 	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1999 
2000 	/* ring 0 - compute and gfx */
2001 	/* Set ring buffer size */
2002 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2003 	rb_bufsz = drm_order(ring->ring_size / 8);
2004 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
2005 #ifdef __BIG_ENDIAN
2006 	tmp |= BUF_SWAP_32BIT;
2007 #endif
2008 	WREG32(CP_RB0_CNTL, tmp);
2009 
2010 	/* Initialize the ring buffer's read and write pointers */
2011 	WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
2012 	ring->wptr = 0;
2013 	WREG32(CP_RB0_WPTR, ring->wptr);
2014 
2015 	/* set the wb address whether it's enabled or not */
2016 	WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
2017 	WREG32(CP_RB0_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
2018 
2019 	if (rdev->wb.enabled)
2020 		WREG32(SCRATCH_UMSK, 0xff);
2021 	else {
2022 		tmp |= RB_NO_UPDATE;
2023 		WREG32(SCRATCH_UMSK, 0);
2024 	}
2025 
2026 	mdelay(1);
2027 	WREG32(CP_RB0_CNTL, tmp);
2028 
2029 	WREG32(CP_RB0_BASE, ring->gpu_addr >> 8);
2030 
2031 	ring->rptr = RREG32(CP_RB0_RPTR);
2032 
2033 	/* ring1  - compute only */
2034 	/* Set ring buffer size */
2035 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
2036 	rb_bufsz = drm_order(ring->ring_size / 8);
2037 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
2038 #ifdef __BIG_ENDIAN
2039 	tmp |= BUF_SWAP_32BIT;
2040 #endif
2041 	WREG32(CP_RB1_CNTL, tmp);
2042 
2043 	/* Initialize the ring buffer's read and write pointers */
2044 	WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
2045 	ring->wptr = 0;
2046 	WREG32(CP_RB1_WPTR, ring->wptr);
2047 
2048 	/* set the wb address whether it's enabled or not */
2049 	WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
2050 	WREG32(CP_RB1_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFF);
2051 
2052 	mdelay(1);
2053 	WREG32(CP_RB1_CNTL, tmp);
2054 
2055 	WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);
2056 
2057 	ring->rptr = RREG32(CP_RB1_RPTR);
2058 
2059 	/* ring2 - compute only */
2060 	/* Set ring buffer size */
2061 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
2062 	rb_bufsz = drm_order(ring->ring_size / 8);
2063 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
2064 #ifdef __BIG_ENDIAN
2065 	tmp |= BUF_SWAP_32BIT;
2066 #endif
2067 	WREG32(CP_RB2_CNTL, tmp);
2068 
2069 	/* Initialize the ring buffer's read and write pointers */
2070 	WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
2071 	ring->wptr = 0;
2072 	WREG32(CP_RB2_WPTR, ring->wptr);
2073 
2074 	/* set the wb address whether it's enabled or not */
2075 	WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
2076 	WREG32(CP_RB2_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFF);
2077 
2078 	mdelay(1);
2079 	WREG32(CP_RB2_CNTL, tmp);
2080 
2081 	WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);
2082 
2083 	ring->rptr = RREG32(CP_RB2_RPTR);
2084 
2085 	/* start the rings */
2086 	si_cp_start(rdev);
2087 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
2088 	rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = true;
2089 	rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = true;
2090 	r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
2091 	if (r) {
2092 		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
2093 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
2094 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
2095 		return r;
2096 	}
2097 	r = radeon_ring_test(rdev, CAYMAN_RING_TYPE_CP1_INDEX, &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX]);
2098 	if (r) {
2099 		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
2100 	}
2101 	r = radeon_ring_test(rdev, CAYMAN_RING_TYPE_CP2_INDEX, &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX]);
2102 	if (r) {
2103 		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
2104 	}
2105 
2106 	return 0;
2107 }
2108 
2109 bool si_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
2110 {
2111 	u32 srbm_status;
2112 	u32 grbm_status, grbm_status2;
2113 	u32 grbm_status_se0, grbm_status_se1;
2114 
2115 	srbm_status = RREG32(SRBM_STATUS);
2116 	grbm_status = RREG32(GRBM_STATUS);
2117 	grbm_status2 = RREG32(GRBM_STATUS2);
2118 	grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
2119 	grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
2120 	if (!(grbm_status & GUI_ACTIVE)) {
2121 		radeon_ring_lockup_update(ring);
2122 		return false;
2123 	}
2124 	/* force CP activities */
2125 	radeon_ring_force_activity(rdev, ring);
2126 	return radeon_ring_test_lockup(rdev, ring);
2127 }
2128 
2129 static void si_gpu_soft_reset_gfx(struct radeon_device *rdev)
2130 {
2131 	u32 grbm_reset = 0;
2132 
2133 	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
2134 		return;
2135 
2136 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
2137 		RREG32(GRBM_STATUS));
2138 	dev_info(rdev->dev, "  GRBM_STATUS2=0x%08X\n",
2139 		RREG32(GRBM_STATUS2));
2140 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
2141 		RREG32(GRBM_STATUS_SE0));
2142 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
2143 		RREG32(GRBM_STATUS_SE1));
2144 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
2145 		RREG32(SRBM_STATUS));
2146 
2147 	/* Disable CP parsing/prefetching */
2148 	WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);
2149 
2150 	/* reset all the gfx blocks */
2151 	grbm_reset = (SOFT_RESET_CP |
2152 		      SOFT_RESET_CB |
2153 		      SOFT_RESET_DB |
2154 		      SOFT_RESET_GDS |
2155 		      SOFT_RESET_PA |
2156 		      SOFT_RESET_SC |
2157 		      SOFT_RESET_BCI |
2158 		      SOFT_RESET_SPI |
2159 		      SOFT_RESET_SX |
2160 		      SOFT_RESET_TC |
2161 		      SOFT_RESET_TA |
2162 		      SOFT_RESET_VGT |
2163 		      SOFT_RESET_IA);
2164 
2165 	dev_info(rdev->dev, "  GRBM_SOFT_RESET=0x%08X\n", grbm_reset);
2166 	WREG32(GRBM_SOFT_RESET, grbm_reset);
2167 	(void)RREG32(GRBM_SOFT_RESET);
2168 	udelay(50);
2169 	WREG32(GRBM_SOFT_RESET, 0);
2170 	(void)RREG32(GRBM_SOFT_RESET);
2171 
2172 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
2173 		RREG32(GRBM_STATUS));
2174 	dev_info(rdev->dev, "  GRBM_STATUS2=0x%08X\n",
2175 		RREG32(GRBM_STATUS2));
2176 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
2177 		RREG32(GRBM_STATUS_SE0));
2178 	dev_info(rdev->dev, "  GRBM_STATUS_SE1=0x%08X\n",
2179 		RREG32(GRBM_STATUS_SE1));
2180 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
2181 		RREG32(SRBM_STATUS));
2182 }
2183 
2184 static void si_gpu_soft_reset_dma(struct radeon_device *rdev)
2185 {
2186 	u32 tmp;
2187 
2188 	if (RREG32(DMA_STATUS_REG) & DMA_IDLE)
2189 		return;
2190 
2191 	dev_info(rdev->dev, "  DMA_STATUS_REG   = 0x%08X\n",
2192 		RREG32(DMA_STATUS_REG));
2193 
2194 	/* dma0 */
2195 	tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
2196 	tmp &= ~DMA_RB_ENABLE;
2197 	WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
2198 
2199 	/* dma1 */
2200 	tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
2201 	tmp &= ~DMA_RB_ENABLE;
2202 	WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
2203 
2204 	/* Reset dma */
2205 	WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
2206 	RREG32(SRBM_SOFT_RESET);
2207 	udelay(50);
2208 	WREG32(SRBM_SOFT_RESET, 0);
2209 
2210 	dev_info(rdev->dev, "  DMA_STATUS_REG   = 0x%08X\n",
2211 		RREG32(DMA_STATUS_REG));
2212 }
2213 
2214 static int si_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
2215 {
2216 	struct evergreen_mc_save save;
2217 
2218 	if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE))
2219 		reset_mask &= ~(RADEON_RESET_GFX | RADEON_RESET_COMPUTE);
2220 
2221 	if (RREG32(DMA_STATUS_REG) & DMA_IDLE)
2222 		reset_mask &= ~RADEON_RESET_DMA;
2223 
2224 	if (reset_mask == 0)
2225 		return 0;
2226 
2227 	dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
2228 
2229 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
2230 		 RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR));
2231 	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
2232 		 RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
2233 
2234 	evergreen_mc_stop(rdev, &save);
2235 	if (radeon_mc_wait_for_idle(rdev)) {
2236 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
2237 	}
2238 
2239 	if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE))
2240 		si_gpu_soft_reset_gfx(rdev);
2241 
2242 	if (reset_mask & RADEON_RESET_DMA)
2243 		si_gpu_soft_reset_dma(rdev);
2244 
2245 	/* Wait a little for things to settle down */
2246 	udelay(50);
2247 
2248 	evergreen_mc_resume(rdev, &save);
2249 	return 0;
2250 }
2251 
2252 int si_asic_reset(struct radeon_device *rdev)
2253 {
2254 	return si_gpu_soft_reset(rdev, (RADEON_RESET_GFX |
2255 					RADEON_RESET_COMPUTE |
2256 					RADEON_RESET_DMA));
2257 }
2258 
2259 /* MC */
2260 static void si_mc_program(struct radeon_device *rdev)
2261 {
2262 	struct evergreen_mc_save save;
2263 	u32 tmp;
2264 	int i, j;
2265 
2266 	/* Initialize HDP */
2267 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
2268 		WREG32((0x2c14 + j), 0x00000000);
2269 		WREG32((0x2c18 + j), 0x00000000);
2270 		WREG32((0x2c1c + j), 0x00000000);
2271 		WREG32((0x2c20 + j), 0x00000000);
2272 		WREG32((0x2c24 + j), 0x00000000);
2273 	}
2274 	WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
2275 
2276 	evergreen_mc_stop(rdev, &save);
2277 	if (radeon_mc_wait_for_idle(rdev)) {
2278 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
2279 	}
2280 	/* Lockout access through VGA aperture*/
2281 	WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
2282 	/* Update configuration */
2283 	WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
2284 	       rdev->mc.vram_start >> 12);
2285 	WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
2286 	       rdev->mc.vram_end >> 12);
2287 	WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
2288 	       rdev->vram_scratch.gpu_addr >> 12);
2289 	tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
2290 	tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
2291 	WREG32(MC_VM_FB_LOCATION, tmp);
2292 	/* XXX double check these! */
2293 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
2294 	WREG32(HDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
2295 	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
2296 	WREG32(MC_VM_AGP_BASE, 0);
2297 	WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
2298 	WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
2299 	if (radeon_mc_wait_for_idle(rdev)) {
2300 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
2301 	}
2302 	evergreen_mc_resume(rdev, &save);
2303 	/* we need to own VRAM, so turn off the VGA renderer here
2304 	 * to stop it overwriting our objects */
2305 	rv515_vga_render_disable(rdev);
2306 }
2307 
2308 /* SI MC address space is 40 bits */
2309 static void si_vram_location(struct radeon_device *rdev,
2310 			     struct radeon_mc *mc, u64 base)
2311 {
2312 	mc->vram_start = base;
2313 	if (mc->mc_vram_size > (0xFFFFFFFFFFULL - base + 1)) {
2314 		dev_warn(rdev->dev, "limiting VRAM to PCI aperture size\n");
2315 		mc->real_vram_size = mc->aper_size;
2316 		mc->mc_vram_size = mc->aper_size;
2317 	}
2318 	mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
2319 	dev_info(rdev->dev, "VRAM: %lluM 0x%016llX - 0x%016llX (%lluM used)\n",
2320 			mc->mc_vram_size >> 20, mc->vram_start,
2321 			mc->vram_end, mc->real_vram_size >> 20);
2322 }
2323 
2324 static void si_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
2325 {
2326 	u64 size_af, size_bf;
2327 
2328 	size_af = ((0xFFFFFFFFFFULL - mc->vram_end) + mc->gtt_base_align) & ~mc->gtt_base_align;
2329 	size_bf = mc->vram_start & ~mc->gtt_base_align;
2330 	if (size_bf > size_af) {
2331 		if (mc->gtt_size > size_bf) {
2332 			dev_warn(rdev->dev, "limiting GTT\n");
2333 			mc->gtt_size = size_bf;
2334 		}
2335 		mc->gtt_start = (mc->vram_start & ~mc->gtt_base_align) - mc->gtt_size;
2336 	} else {
2337 		if (mc->gtt_size > size_af) {
2338 			dev_warn(rdev->dev, "limiting GTT\n");
2339 			mc->gtt_size = size_af;
2340 		}
2341 		mc->gtt_start = (mc->vram_end + 1 + mc->gtt_base_align) & ~mc->gtt_base_align;
2342 	}
2343 	mc->gtt_end = mc->gtt_start + mc->gtt_size - 1;
2344 	dev_info(rdev->dev, "GTT: %lluM 0x%016llX - 0x%016llX\n",
2345 			mc->gtt_size >> 20, mc->gtt_start, mc->gtt_end);
2346 }
2347 
2348 static void si_vram_gtt_location(struct radeon_device *rdev,
2349 				 struct radeon_mc *mc)
2350 {
2351 	if (mc->mc_vram_size > 0xFFC0000000ULL) {
2352 		/* leave room for at least 1024M GTT */
2353 		dev_warn(rdev->dev, "limiting VRAM\n");
2354 		mc->real_vram_size = 0xFFC0000000ULL;
2355 		mc->mc_vram_size = 0xFFC0000000ULL;
2356 	}
2357 	si_vram_location(rdev, &rdev->mc, 0);
2358 	rdev->mc.gtt_base_align = 0;
2359 	si_gtt_location(rdev, mc);
2360 }
2361 
2362 static int si_mc_init(struct radeon_device *rdev)
2363 {
2364 	u32 tmp;
2365 	int chansize, numchan;
2366 
2367 	/* Get VRAM informations */
2368 	rdev->mc.vram_is_ddr = true;
2369 	tmp = RREG32(MC_ARB_RAMCFG);
2370 	if (tmp & CHANSIZE_OVERRIDE) {
2371 		chansize = 16;
2372 	} else if (tmp & CHANSIZE_MASK) {
2373 		chansize = 64;
2374 	} else {
2375 		chansize = 32;
2376 	}
2377 	tmp = RREG32(MC_SHARED_CHMAP);
2378 	switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
2379 	case 0:
2380 	default:
2381 		numchan = 1;
2382 		break;
2383 	case 1:
2384 		numchan = 2;
2385 		break;
2386 	case 2:
2387 		numchan = 4;
2388 		break;
2389 	case 3:
2390 		numchan = 8;
2391 		break;
2392 	case 4:
2393 		numchan = 3;
2394 		break;
2395 	case 5:
2396 		numchan = 6;
2397 		break;
2398 	case 6:
2399 		numchan = 10;
2400 		break;
2401 	case 7:
2402 		numchan = 12;
2403 		break;
2404 	case 8:
2405 		numchan = 16;
2406 		break;
2407 	}
2408 	rdev->mc.vram_width = numchan * chansize;
2409 	/* Could aper size report 0 ? */
2410 	rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
2411 	rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
2412 	/* size in MB on si */
2413 	rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
2414 	rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE) * 1024 * 1024;
2415 	rdev->mc.visible_vram_size = rdev->mc.aper_size;
2416 	si_vram_gtt_location(rdev, &rdev->mc);
2417 	radeon_update_bandwidth_info(rdev);
2418 
2419 	return 0;
2420 }
2421 
2422 /*
2423  * GART
2424  */
2425 void si_pcie_gart_tlb_flush(struct radeon_device *rdev)
2426 {
2427 	/* flush hdp cache */
2428 	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
2429 
2430 	/* bits 0-15 are the VM contexts0-15 */
2431 	WREG32(VM_INVALIDATE_REQUEST, 1);
2432 }
2433 
2434 static int si_pcie_gart_enable(struct radeon_device *rdev)
2435 {
2436 	int r, i;
2437 
2438 	if (rdev->gart.robj == NULL) {
2439 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
2440 		return -EINVAL;
2441 	}
2442 	r = radeon_gart_table_vram_pin(rdev);
2443 	if (r)
2444 		return r;
2445 	radeon_gart_restore(rdev);
2446 	/* Setup TLB control */
2447 	WREG32(MC_VM_MX_L1_TLB_CNTL,
2448 	       (0xA << 7) |
2449 	       ENABLE_L1_TLB |
2450 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
2451 	       ENABLE_ADVANCED_DRIVER_MODEL |
2452 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
2453 	/* Setup L2 cache */
2454 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
2455 	       ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
2456 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
2457 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
2458 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
2459 	WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
2460 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
2461 	       L2_CACHE_BIGK_FRAGMENT_SIZE(0));
2462 	/* setup context0 */
2463 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
2464 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
2465 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
2466 	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
2467 			(u32)(rdev->dummy_page.addr >> 12));
2468 	WREG32(VM_CONTEXT0_CNTL2, 0);
2469 	WREG32(VM_CONTEXT0_CNTL, (ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
2470 				  RANGE_PROTECTION_FAULT_ENABLE_DEFAULT));
2471 
2472 	WREG32(0x15D4, 0);
2473 	WREG32(0x15D8, 0);
2474 	WREG32(0x15DC, 0);
2475 
2476 	/* empty context1-15 */
2477 	/* set vm size, must be a multiple of 4 */
2478 	WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
2479 	WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn);
2480 	/* Assign the pt base to something valid for now; the pts used for
2481 	 * the VMs are determined by the application and setup and assigned
2482 	 * on the fly in the vm part of radeon_gart.c
2483 	 */
2484 	for (i = 1; i < 16; i++) {
2485 		if (i < 8)
2486 			WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
2487 			       rdev->gart.table_addr >> 12);
2488 		else
2489 			WREG32(VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((i - 8) << 2),
2490 			       rdev->gart.table_addr >> 12);
2491 	}
2492 
2493 	/* enable context1-15 */
2494 	WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
2495 	       (u32)(rdev->dummy_page.addr >> 12));
2496 	WREG32(VM_CONTEXT1_CNTL2, 4);
2497 	WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(1) |
2498 				RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
2499 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT |
2500 				DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
2501 				DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT |
2502 				PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT |
2503 				PDE0_PROTECTION_FAULT_ENABLE_DEFAULT |
2504 				VALID_PROTECTION_FAULT_ENABLE_INTERRUPT |
2505 				VALID_PROTECTION_FAULT_ENABLE_DEFAULT |
2506 				READ_PROTECTION_FAULT_ENABLE_INTERRUPT |
2507 				READ_PROTECTION_FAULT_ENABLE_DEFAULT |
2508 				WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT |
2509 				WRITE_PROTECTION_FAULT_ENABLE_DEFAULT);
2510 
2511 	si_pcie_gart_tlb_flush(rdev);
2512 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
2513 		 (unsigned)(rdev->mc.gtt_size >> 20),
2514 		 (unsigned long long)rdev->gart.table_addr);
2515 	rdev->gart.ready = true;
2516 	return 0;
2517 }
2518 
2519 static void si_pcie_gart_disable(struct radeon_device *rdev)
2520 {
2521 	/* Disable all tables */
2522 	WREG32(VM_CONTEXT0_CNTL, 0);
2523 	WREG32(VM_CONTEXT1_CNTL, 0);
2524 	/* Setup TLB control */
2525 	WREG32(MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE_NOT_IN_SYS |
2526 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
2527 	/* Setup L2 cache */
2528 	WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
2529 	       ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
2530 	       EFFECTIVE_L2_QUEUE_SIZE(7) |
2531 	       CONTEXT1_IDENTITY_ACCESS_MODE(1));
2532 	WREG32(VM_L2_CNTL2, 0);
2533 	WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
2534 	       L2_CACHE_BIGK_FRAGMENT_SIZE(0));
2535 	radeon_gart_table_vram_unpin(rdev);
2536 }
2537 
2538 static void si_pcie_gart_fini(struct radeon_device *rdev)
2539 {
2540 	si_pcie_gart_disable(rdev);
2541 	radeon_gart_table_vram_free(rdev);
2542 	radeon_gart_fini(rdev);
2543 }
2544 
2545 /* vm parser */
2546 static bool si_vm_reg_valid(u32 reg)
2547 {
2548 	/* context regs are fine */
2549 	if (reg >= 0x28000)
2550 		return true;
2551 
2552 	/* check config regs */
2553 	switch (reg) {
2554 	case GRBM_GFX_INDEX:
2555 	case CP_STRMOUT_CNTL:
2556 	case VGT_VTX_VECT_EJECT_REG:
2557 	case VGT_CACHE_INVALIDATION:
2558 	case VGT_ESGS_RING_SIZE:
2559 	case VGT_GSVS_RING_SIZE:
2560 	case VGT_GS_VERTEX_REUSE:
2561 	case VGT_PRIMITIVE_TYPE:
2562 	case VGT_INDEX_TYPE:
2563 	case VGT_NUM_INDICES:
2564 	case VGT_NUM_INSTANCES:
2565 	case VGT_TF_RING_SIZE:
2566 	case VGT_HS_OFFCHIP_PARAM:
2567 	case VGT_TF_MEMORY_BASE:
2568 	case PA_CL_ENHANCE:
2569 	case PA_SU_LINE_STIPPLE_VALUE:
2570 	case PA_SC_LINE_STIPPLE_STATE:
2571 	case PA_SC_ENHANCE:
2572 	case SQC_CACHES:
2573 	case SPI_STATIC_THREAD_MGMT_1:
2574 	case SPI_STATIC_THREAD_MGMT_2:
2575 	case SPI_STATIC_THREAD_MGMT_3:
2576 	case SPI_PS_MAX_WAVE_ID:
2577 	case SPI_CONFIG_CNTL:
2578 	case SPI_CONFIG_CNTL_1:
2579 	case TA_CNTL_AUX:
2580 		return true;
2581 	default:
2582 		DRM_ERROR("Invalid register 0x%x in CS\n", reg);
2583 		return false;
2584 	}
2585 }
2586 
2587 static int si_vm_packet3_ce_check(struct radeon_device *rdev,
2588 				  u32 *ib, struct radeon_cs_packet *pkt)
2589 {
2590 	switch (pkt->opcode) {
2591 	case PACKET3_NOP:
2592 	case PACKET3_SET_BASE:
2593 	case PACKET3_SET_CE_DE_COUNTERS:
2594 	case PACKET3_LOAD_CONST_RAM:
2595 	case PACKET3_WRITE_CONST_RAM:
2596 	case PACKET3_WRITE_CONST_RAM_OFFSET:
2597 	case PACKET3_DUMP_CONST_RAM:
2598 	case PACKET3_INCREMENT_CE_COUNTER:
2599 	case PACKET3_WAIT_ON_DE_COUNTER:
2600 	case PACKET3_CE_WRITE:
2601 		break;
2602 	default:
2603 		DRM_ERROR("Invalid CE packet3: 0x%x\n", pkt->opcode);
2604 		return -EINVAL;
2605 	}
2606 	return 0;
2607 }
2608 
2609 static int si_vm_packet3_gfx_check(struct radeon_device *rdev,
2610 				   u32 *ib, struct radeon_cs_packet *pkt)
2611 {
2612 	u32 idx = pkt->idx + 1;
2613 	u32 idx_value = ib[idx];
2614 	u32 start_reg, end_reg, reg, i;
2615 	u32 command, info;
2616 
2617 	switch (pkt->opcode) {
2618 	case PACKET3_NOP:
2619 	case PACKET3_SET_BASE:
2620 	case PACKET3_CLEAR_STATE:
2621 	case PACKET3_INDEX_BUFFER_SIZE:
2622 	case PACKET3_DISPATCH_DIRECT:
2623 	case PACKET3_DISPATCH_INDIRECT:
2624 	case PACKET3_ALLOC_GDS:
2625 	case PACKET3_WRITE_GDS_RAM:
2626 	case PACKET3_ATOMIC_GDS:
2627 	case PACKET3_ATOMIC:
2628 	case PACKET3_OCCLUSION_QUERY:
2629 	case PACKET3_SET_PREDICATION:
2630 	case PACKET3_COND_EXEC:
2631 	case PACKET3_PRED_EXEC:
2632 	case PACKET3_DRAW_INDIRECT:
2633 	case PACKET3_DRAW_INDEX_INDIRECT:
2634 	case PACKET3_INDEX_BASE:
2635 	case PACKET3_DRAW_INDEX_2:
2636 	case PACKET3_CONTEXT_CONTROL:
2637 	case PACKET3_INDEX_TYPE:
2638 	case PACKET3_DRAW_INDIRECT_MULTI:
2639 	case PACKET3_DRAW_INDEX_AUTO:
2640 	case PACKET3_DRAW_INDEX_IMMD:
2641 	case PACKET3_NUM_INSTANCES:
2642 	case PACKET3_DRAW_INDEX_MULTI_AUTO:
2643 	case PACKET3_STRMOUT_BUFFER_UPDATE:
2644 	case PACKET3_DRAW_INDEX_OFFSET_2:
2645 	case PACKET3_DRAW_INDEX_MULTI_ELEMENT:
2646 	case PACKET3_DRAW_INDEX_INDIRECT_MULTI:
2647 	case PACKET3_MPEG_INDEX:
2648 	case PACKET3_WAIT_REG_MEM:
2649 	case PACKET3_MEM_WRITE:
2650 	case PACKET3_PFP_SYNC_ME:
2651 	case PACKET3_SURFACE_SYNC:
2652 	case PACKET3_EVENT_WRITE:
2653 	case PACKET3_EVENT_WRITE_EOP:
2654 	case PACKET3_EVENT_WRITE_EOS:
2655 	case PACKET3_SET_CONTEXT_REG:
2656 	case PACKET3_SET_CONTEXT_REG_INDIRECT:
2657 	case PACKET3_SET_SH_REG:
2658 	case PACKET3_SET_SH_REG_OFFSET:
2659 	case PACKET3_INCREMENT_DE_COUNTER:
2660 	case PACKET3_WAIT_ON_CE_COUNTER:
2661 	case PACKET3_WAIT_ON_AVAIL_BUFFER:
2662 	case PACKET3_ME_WRITE:
2663 		break;
2664 	case PACKET3_COPY_DATA:
2665 		if ((idx_value & 0xf00) == 0) {
2666 			reg = ib[idx + 3] * 4;
2667 			if (!si_vm_reg_valid(reg))
2668 				return -EINVAL;
2669 		}
2670 		break;
2671 	case PACKET3_WRITE_DATA:
2672 		if ((idx_value & 0xf00) == 0) {
2673 			start_reg = ib[idx + 1] * 4;
2674 			if (idx_value & 0x10000) {
2675 				if (!si_vm_reg_valid(start_reg))
2676 					return -EINVAL;
2677 			} else {
2678 				for (i = 0; i < (pkt->count - 2); i++) {
2679 					reg = start_reg + (4 * i);
2680 					if (!si_vm_reg_valid(reg))
2681 						return -EINVAL;
2682 				}
2683 			}
2684 		}
2685 		break;
2686 	case PACKET3_COND_WRITE:
2687 		if (idx_value & 0x100) {
2688 			reg = ib[idx + 5] * 4;
2689 			if (!si_vm_reg_valid(reg))
2690 				return -EINVAL;
2691 		}
2692 		break;
2693 	case PACKET3_COPY_DW:
2694 		if (idx_value & 0x2) {
2695 			reg = ib[idx + 3] * 4;
2696 			if (!si_vm_reg_valid(reg))
2697 				return -EINVAL;
2698 		}
2699 		break;
2700 	case PACKET3_SET_CONFIG_REG:
2701 		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START;
2702 		end_reg = 4 * pkt->count + start_reg - 4;
2703 		if ((start_reg < PACKET3_SET_CONFIG_REG_START) ||
2704 		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
2705 		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
2706 			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
2707 			return -EINVAL;
2708 		}
2709 		for (i = 0; i < pkt->count; i++) {
2710 			reg = start_reg + (4 * i);
2711 			if (!si_vm_reg_valid(reg))
2712 				return -EINVAL;
2713 		}
2714 		break;
2715 	case PACKET3_CP_DMA:
2716 		command = ib[idx + 4];
2717 		info = ib[idx + 1];
2718 		if (command & PACKET3_CP_DMA_CMD_SAS) {
2719 			/* src address space is register */
2720 			if (((info & 0x60000000) >> 29) == 0) {
2721 				start_reg = idx_value << 2;
2722 				if (command & PACKET3_CP_DMA_CMD_SAIC) {
2723 					reg = start_reg;
2724 					if (!si_vm_reg_valid(reg)) {
2725 						DRM_ERROR("CP DMA Bad SRC register\n");
2726 						return -EINVAL;
2727 					}
2728 				} else {
2729 					for (i = 0; i < (command & 0x1fffff); i++) {
2730 						reg = start_reg + (4 * i);
2731 						if (!si_vm_reg_valid(reg)) {
2732 							DRM_ERROR("CP DMA Bad SRC register\n");
2733 							return -EINVAL;
2734 						}
2735 					}
2736 				}
2737 			}
2738 		}
2739 		if (command & PACKET3_CP_DMA_CMD_DAS) {
2740 			/* dst address space is register */
2741 			if (((info & 0x00300000) >> 20) == 0) {
2742 				start_reg = ib[idx + 2];
2743 				if (command & PACKET3_CP_DMA_CMD_DAIC) {
2744 					reg = start_reg;
2745 					if (!si_vm_reg_valid(reg)) {
2746 						DRM_ERROR("CP DMA Bad DST register\n");
2747 						return -EINVAL;
2748 					}
2749 				} else {
2750 					for (i = 0; i < (command & 0x1fffff); i++) {
2751 						reg = start_reg + (4 * i);
2752 						if (!si_vm_reg_valid(reg)) {
2753 							DRM_ERROR("CP DMA Bad DST register\n");
2754 							return -EINVAL;
2755 						}
2756 					}
2757 				}
2758 			}
2759 		}
2760 		break;
2761 	default:
2762 		DRM_ERROR("Invalid GFX packet3: 0x%x\n", pkt->opcode);
2763 		return -EINVAL;
2764 	}
2765 	return 0;
2766 }
2767 
2768 static int si_vm_packet3_compute_check(struct radeon_device *rdev,
2769 				       u32 *ib, struct radeon_cs_packet *pkt)
2770 {
2771 	u32 idx = pkt->idx + 1;
2772 	u32 idx_value = ib[idx];
2773 	u32 start_reg, reg, i;
2774 
2775 	switch (pkt->opcode) {
2776 	case PACKET3_NOP:
2777 	case PACKET3_SET_BASE:
2778 	case PACKET3_CLEAR_STATE:
2779 	case PACKET3_DISPATCH_DIRECT:
2780 	case PACKET3_DISPATCH_INDIRECT:
2781 	case PACKET3_ALLOC_GDS:
2782 	case PACKET3_WRITE_GDS_RAM:
2783 	case PACKET3_ATOMIC_GDS:
2784 	case PACKET3_ATOMIC:
2785 	case PACKET3_OCCLUSION_QUERY:
2786 	case PACKET3_SET_PREDICATION:
2787 	case PACKET3_COND_EXEC:
2788 	case PACKET3_PRED_EXEC:
2789 	case PACKET3_CONTEXT_CONTROL:
2790 	case PACKET3_STRMOUT_BUFFER_UPDATE:
2791 	case PACKET3_WAIT_REG_MEM:
2792 	case PACKET3_MEM_WRITE:
2793 	case PACKET3_PFP_SYNC_ME:
2794 	case PACKET3_SURFACE_SYNC:
2795 	case PACKET3_EVENT_WRITE:
2796 	case PACKET3_EVENT_WRITE_EOP:
2797 	case PACKET3_EVENT_WRITE_EOS:
2798 	case PACKET3_SET_CONTEXT_REG:
2799 	case PACKET3_SET_CONTEXT_REG_INDIRECT:
2800 	case PACKET3_SET_SH_REG:
2801 	case PACKET3_SET_SH_REG_OFFSET:
2802 	case PACKET3_INCREMENT_DE_COUNTER:
2803 	case PACKET3_WAIT_ON_CE_COUNTER:
2804 	case PACKET3_WAIT_ON_AVAIL_BUFFER:
2805 	case PACKET3_ME_WRITE:
2806 		break;
2807 	case PACKET3_COPY_DATA:
2808 		if ((idx_value & 0xf00) == 0) {
2809 			reg = ib[idx + 3] * 4;
2810 			if (!si_vm_reg_valid(reg))
2811 				return -EINVAL;
2812 		}
2813 		break;
2814 	case PACKET3_WRITE_DATA:
2815 		if ((idx_value & 0xf00) == 0) {
2816 			start_reg = ib[idx + 1] * 4;
2817 			if (idx_value & 0x10000) {
2818 				if (!si_vm_reg_valid(start_reg))
2819 					return -EINVAL;
2820 			} else {
2821 				for (i = 0; i < (pkt->count - 2); i++) {
2822 					reg = start_reg + (4 * i);
2823 					if (!si_vm_reg_valid(reg))
2824 						return -EINVAL;
2825 				}
2826 			}
2827 		}
2828 		break;
2829 	case PACKET3_COND_WRITE:
2830 		if (idx_value & 0x100) {
2831 			reg = ib[idx + 5] * 4;
2832 			if (!si_vm_reg_valid(reg))
2833 				return -EINVAL;
2834 		}
2835 		break;
2836 	case PACKET3_COPY_DW:
2837 		if (idx_value & 0x2) {
2838 			reg = ib[idx + 3] * 4;
2839 			if (!si_vm_reg_valid(reg))
2840 				return -EINVAL;
2841 		}
2842 		break;
2843 	default:
2844 		DRM_ERROR("Invalid Compute packet3: 0x%x\n", pkt->opcode);
2845 		return -EINVAL;
2846 	}
2847 	return 0;
2848 }
2849 
2850 int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
2851 {
2852 	int ret = 0;
2853 	u32 idx = 0;
2854 	struct radeon_cs_packet pkt;
2855 
2856 	do {
2857 		pkt.idx = idx;
2858 		pkt.type = CP_PACKET_GET_TYPE(ib->ptr[idx]);
2859 		pkt.count = CP_PACKET_GET_COUNT(ib->ptr[idx]);
2860 		pkt.one_reg_wr = 0;
2861 		switch (pkt.type) {
2862 		case PACKET_TYPE0:
2863 			dev_err(rdev->dev, "Packet0 not allowed!\n");
2864 			ret = -EINVAL;
2865 			break;
2866 		case PACKET_TYPE2:
2867 			idx += 1;
2868 			break;
2869 		case PACKET_TYPE3:
2870 			pkt.opcode = CP_PACKET3_GET_OPCODE(ib->ptr[idx]);
2871 			if (ib->is_const_ib)
2872 				ret = si_vm_packet3_ce_check(rdev, ib->ptr, &pkt);
2873 			else {
2874 				switch (ib->ring) {
2875 				case RADEON_RING_TYPE_GFX_INDEX:
2876 					ret = si_vm_packet3_gfx_check(rdev, ib->ptr, &pkt);
2877 					break;
2878 				case CAYMAN_RING_TYPE_CP1_INDEX:
2879 				case CAYMAN_RING_TYPE_CP2_INDEX:
2880 					ret = si_vm_packet3_compute_check(rdev, ib->ptr, &pkt);
2881 					break;
2882 				default:
2883 					dev_err(rdev->dev, "Non-PM4 ring %d !\n", ib->ring);
2884 					ret = -EINVAL;
2885 					break;
2886 				}
2887 			}
2888 			idx += pkt.count + 2;
2889 			break;
2890 		default:
2891 			dev_err(rdev->dev, "Unknown packet type %d !\n", pkt.type);
2892 			ret = -EINVAL;
2893 			break;
2894 		}
2895 		if (ret)
2896 			break;
2897 	} while (idx < ib->length_dw);
2898 
2899 	return ret;
2900 }
2901 
2902 /*
2903  * vm
2904  */
2905 int si_vm_init(struct radeon_device *rdev)
2906 {
2907 	/* number of VMs */
2908 	rdev->vm_manager.nvm = 16;
2909 	/* base offset of vram pages */
2910 	rdev->vm_manager.vram_base_offset = 0;
2911 
2912 	return 0;
2913 }
2914 
2915 void si_vm_fini(struct radeon_device *rdev)
2916 {
2917 }
2918 
2919 /**
2920  * si_vm_set_page - update the page tables using the CP
2921  *
2922  * @rdev: radeon_device pointer
2923  * @pe: addr of the page entry
2924  * @addr: dst addr to write into pe
2925  * @count: number of page entries to update
2926  * @incr: increase next addr by incr bytes
2927  * @flags: access flags
2928  *
2929  * Update the page tables using the CP (cayman-si).
2930  */
2931 void si_vm_set_page(struct radeon_device *rdev, uint64_t pe,
2932 		    uint64_t addr, unsigned count,
2933 		    uint32_t incr, uint32_t flags)
2934 {
2935 	struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
2936 	uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
2937 	uint64_t value;
2938 	unsigned ndw;
2939 
2940 	if (rdev->asic->vm.pt_ring_index == RADEON_RING_TYPE_GFX_INDEX) {
2941 		while (count) {
2942 			ndw = 2 + count * 2;
2943 			if (ndw > 0x3FFE)
2944 				ndw = 0x3FFE;
2945 
2946 			radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw));
2947 			radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
2948 						 WRITE_DATA_DST_SEL(1)));
2949 			radeon_ring_write(ring, pe);
2950 			radeon_ring_write(ring, upper_32_bits(pe));
2951 			for (; ndw > 2; ndw -= 2, --count, pe += 8) {
2952 				if (flags & RADEON_VM_PAGE_SYSTEM) {
2953 					value = radeon_vm_map_gart(rdev, addr);
2954 					value &= 0xFFFFFFFFFFFFF000ULL;
2955 				} else if (flags & RADEON_VM_PAGE_VALID) {
2956 					value = addr;
2957 				} else {
2958 					value = 0;
2959 				}
2960 				addr += incr;
2961 				value |= r600_flags;
2962 				radeon_ring_write(ring, value);
2963 				radeon_ring_write(ring, upper_32_bits(value));
2964 			}
2965 		}
2966 	} else {
2967 		/* DMA */
2968 		if (flags & RADEON_VM_PAGE_SYSTEM) {
2969 			while (count) {
2970 				ndw = count * 2;
2971 				if (ndw > 0xFFFFE)
2972 					ndw = 0xFFFFE;
2973 
2974 				/* for non-physically contiguous pages (system) */
2975 				radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 0, ndw));
2976 				radeon_ring_write(ring, pe);
2977 				radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
2978 				for (; ndw > 0; ndw -= 2, --count, pe += 8) {
2979 					if (flags & RADEON_VM_PAGE_SYSTEM) {
2980 						value = radeon_vm_map_gart(rdev, addr);
2981 						value &= 0xFFFFFFFFFFFFF000ULL;
2982 					} else if (flags & RADEON_VM_PAGE_VALID) {
2983 						value = addr;
2984 					} else {
2985 						value = 0;
2986 					}
2987 					addr += incr;
2988 					value |= r600_flags;
2989 					radeon_ring_write(ring, value);
2990 					radeon_ring_write(ring, upper_32_bits(value));
2991 				}
2992 			}
2993 		} else {
2994 			while (count) {
2995 				ndw = count * 2;
2996 				if (ndw > 0xFFFFE)
2997 					ndw = 0xFFFFE;
2998 
2999 				if (flags & RADEON_VM_PAGE_VALID)
3000 					value = addr;
3001 				else
3002 					value = 0;
3003 				/* for physically contiguous pages (vram) */
3004 				radeon_ring_write(ring, DMA_PTE_PDE_PACKET(ndw));
3005 				radeon_ring_write(ring, pe); /* dst addr */
3006 				radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
3007 				radeon_ring_write(ring, r600_flags); /* mask */
3008 				radeon_ring_write(ring, 0);
3009 				radeon_ring_write(ring, value); /* value */
3010 				radeon_ring_write(ring, upper_32_bits(value));
3011 				radeon_ring_write(ring, incr); /* increment size */
3012 				radeon_ring_write(ring, 0);
3013 				pe += ndw * 4;
3014 				addr += (ndw / 2) * incr;
3015 				count -= ndw / 2;
3016 			}
3017 		}
3018 	}
3019 }
3020 
3021 void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
3022 {
3023 	struct radeon_ring *ring = &rdev->ring[ridx];
3024 
3025 	if (vm == NULL)
3026 		return;
3027 
3028 	/* write new base address */
3029 	radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
3030 	radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
3031 				 WRITE_DATA_DST_SEL(0)));
3032 
3033 	if (vm->id < 8) {
3034 		radeon_ring_write(ring,
3035 				  (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2);
3036 	} else {
3037 		radeon_ring_write(ring,
3038 				  (VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2);
3039 	}
3040 	radeon_ring_write(ring, 0);
3041 	radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
3042 
3043 	/* flush hdp cache */
3044 	radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
3045 	radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
3046 				 WRITE_DATA_DST_SEL(0)));
3047 	radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2);
3048 	radeon_ring_write(ring, 0);
3049 	radeon_ring_write(ring, 0x1);
3050 
3051 	/* bits 0-15 are the VM contexts0-15 */
3052 	radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
3053 	radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
3054 				 WRITE_DATA_DST_SEL(0)));
3055 	radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2);
3056 	radeon_ring_write(ring, 0);
3057 	radeon_ring_write(ring, 1 << vm->id);
3058 
3059 	/* sync PFP to ME, otherwise we might get invalid PFP reads */
3060 	radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
3061 	radeon_ring_write(ring, 0x0);
3062 }
3063 
3064 void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
3065 {
3066 	struct radeon_ring *ring = &rdev->ring[ridx];
3067 
3068 	if (vm == NULL)
3069 		return;
3070 
3071 	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
3072 	if (vm->id < 8) {
3073 		radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
3074 	} else {
3075 		radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2));
3076 	}
3077 	radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
3078 
3079 	/* flush hdp cache */
3080 	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
3081 	radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
3082 	radeon_ring_write(ring, 1);
3083 
3084 	/* bits 0-7 are the VM contexts0-7 */
3085 	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
3086 	radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
3087 	radeon_ring_write(ring, 1 << vm->id);
3088 }
3089 
3090 /*
3091  * RLC
3092  */
3093 void si_rlc_fini(struct radeon_device *rdev)
3094 {
3095 	int r;
3096 
3097 	/* save restore block */
3098 	if (rdev->rlc.save_restore_obj) {
3099 		r = radeon_bo_reserve(rdev->rlc.save_restore_obj, false);
3100 		if (unlikely(r != 0))
3101 			dev_warn(rdev->dev, "(%d) reserve RLC sr bo failed\n", r);
3102 		radeon_bo_unpin(rdev->rlc.save_restore_obj);
3103 		radeon_bo_unreserve(rdev->rlc.save_restore_obj);
3104 
3105 		radeon_bo_unref(&rdev->rlc.save_restore_obj);
3106 		rdev->rlc.save_restore_obj = NULL;
3107 	}
3108 
3109 	/* clear state block */
3110 	if (rdev->rlc.clear_state_obj) {
3111 		r = radeon_bo_reserve(rdev->rlc.clear_state_obj, false);
3112 		if (unlikely(r != 0))
3113 			dev_warn(rdev->dev, "(%d) reserve RLC c bo failed\n", r);
3114 		radeon_bo_unpin(rdev->rlc.clear_state_obj);
3115 		radeon_bo_unreserve(rdev->rlc.clear_state_obj);
3116 
3117 		radeon_bo_unref(&rdev->rlc.clear_state_obj);
3118 		rdev->rlc.clear_state_obj = NULL;
3119 	}
3120 }
3121 
3122 int si_rlc_init(struct radeon_device *rdev)
3123 {
3124 	int r;
3125 
3126 	/* save restore block */
3127 	if (rdev->rlc.save_restore_obj == NULL) {
3128 		r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
3129 				     RADEON_GEM_DOMAIN_VRAM, NULL,
3130 				     &rdev->rlc.save_restore_obj);
3131 		if (r) {
3132 			dev_warn(rdev->dev, "(%d) create RLC sr bo failed\n", r);
3133 			return r;
3134 		}
3135 	}
3136 
3137 	r = radeon_bo_reserve(rdev->rlc.save_restore_obj, false);
3138 	if (unlikely(r != 0)) {
3139 		si_rlc_fini(rdev);
3140 		return r;
3141 	}
3142 	r = radeon_bo_pin(rdev->rlc.save_restore_obj, RADEON_GEM_DOMAIN_VRAM,
3143 			  &rdev->rlc.save_restore_gpu_addr);
3144 	radeon_bo_unreserve(rdev->rlc.save_restore_obj);
3145 	if (r) {
3146 		dev_warn(rdev->dev, "(%d) pin RLC sr bo failed\n", r);
3147 		si_rlc_fini(rdev);
3148 		return r;
3149 	}
3150 
3151 	/* clear state block */
3152 	if (rdev->rlc.clear_state_obj == NULL) {
3153 		r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE, PAGE_SIZE, true,
3154 				     RADEON_GEM_DOMAIN_VRAM, NULL,
3155 				     &rdev->rlc.clear_state_obj);
3156 		if (r) {
3157 			dev_warn(rdev->dev, "(%d) create RLC c bo failed\n", r);
3158 			si_rlc_fini(rdev);
3159 			return r;
3160 		}
3161 	}
3162 	r = radeon_bo_reserve(rdev->rlc.clear_state_obj, false);
3163 	if (unlikely(r != 0)) {
3164 		si_rlc_fini(rdev);
3165 		return r;
3166 	}
3167 	r = radeon_bo_pin(rdev->rlc.clear_state_obj, RADEON_GEM_DOMAIN_VRAM,
3168 			  &rdev->rlc.clear_state_gpu_addr);
3169 	radeon_bo_unreserve(rdev->rlc.clear_state_obj);
3170 	if (r) {
3171 		dev_warn(rdev->dev, "(%d) pin RLC c bo failed\n", r);
3172 		si_rlc_fini(rdev);
3173 		return r;
3174 	}
3175 
3176 	return 0;
3177 }
3178 
3179 static void si_rlc_stop(struct radeon_device *rdev)
3180 {
3181 	WREG32(RLC_CNTL, 0);
3182 }
3183 
3184 static void si_rlc_start(struct radeon_device *rdev)
3185 {
3186 	WREG32(RLC_CNTL, RLC_ENABLE);
3187 }
3188 
3189 static int si_rlc_resume(struct radeon_device *rdev)
3190 {
3191 	u32 i;
3192 	const __be32 *fw_data;
3193 
3194 	if (!rdev->rlc_fw)
3195 		return -EINVAL;
3196 
3197 	si_rlc_stop(rdev);
3198 
3199 	WREG32(RLC_RL_BASE, 0);
3200 	WREG32(RLC_RL_SIZE, 0);
3201 	WREG32(RLC_LB_CNTL, 0);
3202 	WREG32(RLC_LB_CNTR_MAX, 0xffffffff);
3203 	WREG32(RLC_LB_CNTR_INIT, 0);
3204 
3205 	WREG32(RLC_SAVE_AND_RESTORE_BASE, rdev->rlc.save_restore_gpu_addr >> 8);
3206 	WREG32(RLC_CLEAR_STATE_RESTORE_BASE, rdev->rlc.clear_state_gpu_addr >> 8);
3207 
3208 	WREG32(RLC_MC_CNTL, 0);
3209 	WREG32(RLC_UCODE_CNTL, 0);
3210 
3211 	fw_data = (const __be32 *)rdev->rlc_fw->data;
3212 	for (i = 0; i < SI_RLC_UCODE_SIZE; i++) {
3213 		WREG32(RLC_UCODE_ADDR, i);
3214 		WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
3215 	}
3216 	WREG32(RLC_UCODE_ADDR, 0);
3217 
3218 	si_rlc_start(rdev);
3219 
3220 	return 0;
3221 }
3222 
3223 static void si_enable_interrupts(struct radeon_device *rdev)
3224 {
3225 	u32 ih_cntl = RREG32(IH_CNTL);
3226 	u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3227 
3228 	ih_cntl |= ENABLE_INTR;
3229 	ih_rb_cntl |= IH_RB_ENABLE;
3230 	WREG32(IH_CNTL, ih_cntl);
3231 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3232 	rdev->ih.enabled = true;
3233 }
3234 
3235 static void si_disable_interrupts(struct radeon_device *rdev)
3236 {
3237 	u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3238 	u32 ih_cntl = RREG32(IH_CNTL);
3239 
3240 	ih_rb_cntl &= ~IH_RB_ENABLE;
3241 	ih_cntl &= ~ENABLE_INTR;
3242 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3243 	WREG32(IH_CNTL, ih_cntl);
3244 	/* set rptr, wptr to 0 */
3245 	WREG32(IH_RB_RPTR, 0);
3246 	WREG32(IH_RB_WPTR, 0);
3247 	rdev->ih.enabled = false;
3248 	rdev->ih.rptr = 0;
3249 }
3250 
3251 static void si_disable_interrupt_state(struct radeon_device *rdev)
3252 {
3253 	u32 tmp;
3254 
3255 	WREG32(CP_INT_CNTL_RING0, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
3256 	WREG32(CP_INT_CNTL_RING1, 0);
3257 	WREG32(CP_INT_CNTL_RING2, 0);
3258 	tmp = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
3259 	WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, tmp);
3260 	tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
3261 	WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
3262 	WREG32(GRBM_INT_CNTL, 0);
3263 	WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
3264 	WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
3265 	if (rdev->num_crtc >= 4) {
3266 		WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
3267 		WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
3268 	}
3269 	if (rdev->num_crtc >= 6) {
3270 		WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
3271 		WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
3272 	}
3273 
3274 	WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
3275 	WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
3276 	if (rdev->num_crtc >= 4) {
3277 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, 0);
3278 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, 0);
3279 	}
3280 	if (rdev->num_crtc >= 6) {
3281 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, 0);
3282 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, 0);
3283 	}
3284 
3285 	WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
3286 
3287 	tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3288 	WREG32(DC_HPD1_INT_CONTROL, tmp);
3289 	tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3290 	WREG32(DC_HPD2_INT_CONTROL, tmp);
3291 	tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3292 	WREG32(DC_HPD3_INT_CONTROL, tmp);
3293 	tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3294 	WREG32(DC_HPD4_INT_CONTROL, tmp);
3295 	tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3296 	WREG32(DC_HPD5_INT_CONTROL, tmp);
3297 	tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3298 	WREG32(DC_HPD6_INT_CONTROL, tmp);
3299 
3300 }
3301 
3302 static int si_irq_init(struct radeon_device *rdev)
3303 {
3304 	int ret = 0;
3305 	int rb_bufsz;
3306 	u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
3307 
3308 	/* allocate ring */
3309 	ret = r600_ih_ring_alloc(rdev);
3310 	if (ret)
3311 		return ret;
3312 
3313 	/* disable irqs */
3314 	si_disable_interrupts(rdev);
3315 
3316 	/* init rlc */
3317 	ret = si_rlc_resume(rdev);
3318 	if (ret) {
3319 		r600_ih_ring_fini(rdev);
3320 		return ret;
3321 	}
3322 
3323 	/* setup interrupt control */
3324 	/* set dummy read address to ring address */
3325 	WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
3326 	interrupt_cntl = RREG32(INTERRUPT_CNTL);
3327 	/* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
3328 	 * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
3329 	 */
3330 	interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
3331 	/* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
3332 	interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
3333 	WREG32(INTERRUPT_CNTL, interrupt_cntl);
3334 
3335 	WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
3336 	rb_bufsz = drm_order(rdev->ih.ring_size / 4);
3337 
3338 	ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
3339 		      IH_WPTR_OVERFLOW_CLEAR |
3340 		      (rb_bufsz << 1));
3341 
3342 	if (rdev->wb.enabled)
3343 		ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;
3344 
3345 	/* set the writeback address whether it's enabled or not */
3346 	WREG32(IH_RB_WPTR_ADDR_LO, (rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFFFFFFFC);
3347 	WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFF);
3348 
3349 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3350 
3351 	/* set rptr, wptr to 0 */
3352 	WREG32(IH_RB_RPTR, 0);
3353 	WREG32(IH_RB_WPTR, 0);
3354 
3355 	/* Default settings for IH_CNTL (disabled at first) */
3356 	ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10) | MC_VMID(0);
3357 	/* RPTR_REARM only works if msi's are enabled */
3358 	if (rdev->msi_enabled)
3359 		ih_cntl |= RPTR_REARM;
3360 	WREG32(IH_CNTL, ih_cntl);
3361 
3362 	/* force the active interrupt state to all disabled */
3363 	si_disable_interrupt_state(rdev);
3364 
3365 	pci_set_master(rdev->pdev);
3366 
3367 	/* enable irqs */
3368 	si_enable_interrupts(rdev);
3369 
3370 	return ret;
3371 }
3372 
3373 int si_irq_set(struct radeon_device *rdev)
3374 {
3375 	u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
3376 	u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0;
3377 	u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
3378 	u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
3379 	u32 grbm_int_cntl = 0;
3380 	u32 grph1 = 0, grph2 = 0, grph3 = 0, grph4 = 0, grph5 = 0, grph6 = 0;
3381 	u32 dma_cntl, dma_cntl1;
3382 
3383 	if (!rdev->irq.installed) {
3384 		WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
3385 		return -EINVAL;
3386 	}
3387 	/* don't enable anything if the ih is disabled */
3388 	if (!rdev->ih.enabled) {
3389 		si_disable_interrupts(rdev);
3390 		/* force the active interrupt state to all disabled */
3391 		si_disable_interrupt_state(rdev);
3392 		return 0;
3393 	}
3394 
3395 	hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
3396 	hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
3397 	hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
3398 	hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
3399 	hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
3400 	hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
3401 
3402 	dma_cntl = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
3403 	dma_cntl1 = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
3404 
3405 	/* enable CP interrupts on all rings */
3406 	if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
3407 		DRM_DEBUG("si_irq_set: sw int gfx\n");
3408 		cp_int_cntl |= TIME_STAMP_INT_ENABLE;
3409 	}
3410 	if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_CP1_INDEX])) {
3411 		DRM_DEBUG("si_irq_set: sw int cp1\n");
3412 		cp_int_cntl1 |= TIME_STAMP_INT_ENABLE;
3413 	}
3414 	if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_CP2_INDEX])) {
3415 		DRM_DEBUG("si_irq_set: sw int cp2\n");
3416 		cp_int_cntl2 |= TIME_STAMP_INT_ENABLE;
3417 	}
3418 	if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
3419 		DRM_DEBUG("si_irq_set: sw int dma\n");
3420 		dma_cntl |= TRAP_ENABLE;
3421 	}
3422 
3423 	if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_DMA1_INDEX])) {
3424 		DRM_DEBUG("si_irq_set: sw int dma1\n");
3425 		dma_cntl1 |= TRAP_ENABLE;
3426 	}
3427 	if (rdev->irq.crtc_vblank_int[0] ||
3428 	    atomic_read(&rdev->irq.pflip[0])) {
3429 		DRM_DEBUG("si_irq_set: vblank 0\n");
3430 		crtc1 |= VBLANK_INT_MASK;
3431 	}
3432 	if (rdev->irq.crtc_vblank_int[1] ||
3433 	    atomic_read(&rdev->irq.pflip[1])) {
3434 		DRM_DEBUG("si_irq_set: vblank 1\n");
3435 		crtc2 |= VBLANK_INT_MASK;
3436 	}
3437 	if (rdev->irq.crtc_vblank_int[2] ||
3438 	    atomic_read(&rdev->irq.pflip[2])) {
3439 		DRM_DEBUG("si_irq_set: vblank 2\n");
3440 		crtc3 |= VBLANK_INT_MASK;
3441 	}
3442 	if (rdev->irq.crtc_vblank_int[3] ||
3443 	    atomic_read(&rdev->irq.pflip[3])) {
3444 		DRM_DEBUG("si_irq_set: vblank 3\n");
3445 		crtc4 |= VBLANK_INT_MASK;
3446 	}
3447 	if (rdev->irq.crtc_vblank_int[4] ||
3448 	    atomic_read(&rdev->irq.pflip[4])) {
3449 		DRM_DEBUG("si_irq_set: vblank 4\n");
3450 		crtc5 |= VBLANK_INT_MASK;
3451 	}
3452 	if (rdev->irq.crtc_vblank_int[5] ||
3453 	    atomic_read(&rdev->irq.pflip[5])) {
3454 		DRM_DEBUG("si_irq_set: vblank 5\n");
3455 		crtc6 |= VBLANK_INT_MASK;
3456 	}
3457 	if (rdev->irq.hpd[0]) {
3458 		DRM_DEBUG("si_irq_set: hpd 1\n");
3459 		hpd1 |= DC_HPDx_INT_EN;
3460 	}
3461 	if (rdev->irq.hpd[1]) {
3462 		DRM_DEBUG("si_irq_set: hpd 2\n");
3463 		hpd2 |= DC_HPDx_INT_EN;
3464 	}
3465 	if (rdev->irq.hpd[2]) {
3466 		DRM_DEBUG("si_irq_set: hpd 3\n");
3467 		hpd3 |= DC_HPDx_INT_EN;
3468 	}
3469 	if (rdev->irq.hpd[3]) {
3470 		DRM_DEBUG("si_irq_set: hpd 4\n");
3471 		hpd4 |= DC_HPDx_INT_EN;
3472 	}
3473 	if (rdev->irq.hpd[4]) {
3474 		DRM_DEBUG("si_irq_set: hpd 5\n");
3475 		hpd5 |= DC_HPDx_INT_EN;
3476 	}
3477 	if (rdev->irq.hpd[5]) {
3478 		DRM_DEBUG("si_irq_set: hpd 6\n");
3479 		hpd6 |= DC_HPDx_INT_EN;
3480 	}
3481 
3482 	WREG32(CP_INT_CNTL_RING0, cp_int_cntl);
3483 	WREG32(CP_INT_CNTL_RING1, cp_int_cntl1);
3484 	WREG32(CP_INT_CNTL_RING2, cp_int_cntl2);
3485 
3486 	WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, dma_cntl);
3487 	WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, dma_cntl1);
3488 
3489 	WREG32(GRBM_INT_CNTL, grbm_int_cntl);
3490 
3491 	WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
3492 	WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, crtc2);
3493 	if (rdev->num_crtc >= 4) {
3494 		WREG32(INT_MASK + EVERGREEN_CRTC2_REGISTER_OFFSET, crtc3);
3495 		WREG32(INT_MASK + EVERGREEN_CRTC3_REGISTER_OFFSET, crtc4);
3496 	}
3497 	if (rdev->num_crtc >= 6) {
3498 		WREG32(INT_MASK + EVERGREEN_CRTC4_REGISTER_OFFSET, crtc5);
3499 		WREG32(INT_MASK + EVERGREEN_CRTC5_REGISTER_OFFSET, crtc6);
3500 	}
3501 
3502 	WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET, grph1);
3503 	WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET, grph2);
3504 	if (rdev->num_crtc >= 4) {
3505 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET, grph3);
3506 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET, grph4);
3507 	}
3508 	if (rdev->num_crtc >= 6) {
3509 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET, grph5);
3510 		WREG32(GRPH_INT_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET, grph6);
3511 	}
3512 
3513 	WREG32(DC_HPD1_INT_CONTROL, hpd1);
3514 	WREG32(DC_HPD2_INT_CONTROL, hpd2);
3515 	WREG32(DC_HPD3_INT_CONTROL, hpd3);
3516 	WREG32(DC_HPD4_INT_CONTROL, hpd4);
3517 	WREG32(DC_HPD5_INT_CONTROL, hpd5);
3518 	WREG32(DC_HPD6_INT_CONTROL, hpd6);
3519 
3520 	return 0;
3521 }
3522 
3523 static inline void si_irq_ack(struct radeon_device *rdev)
3524 {
3525 	u32 tmp;
3526 
3527 	rdev->irq.stat_regs.evergreen.disp_int = RREG32(DISP_INTERRUPT_STATUS);
3528 	rdev->irq.stat_regs.evergreen.disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
3529 	rdev->irq.stat_regs.evergreen.disp_int_cont2 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE2);
3530 	rdev->irq.stat_regs.evergreen.disp_int_cont3 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE3);
3531 	rdev->irq.stat_regs.evergreen.disp_int_cont4 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE4);
3532 	rdev->irq.stat_regs.evergreen.disp_int_cont5 = RREG32(DISP_INTERRUPT_STATUS_CONTINUE5);
3533 	rdev->irq.stat_regs.evergreen.d1grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET);
3534 	rdev->irq.stat_regs.evergreen.d2grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET);
3535 	if (rdev->num_crtc >= 4) {
3536 		rdev->irq.stat_regs.evergreen.d3grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET);
3537 		rdev->irq.stat_regs.evergreen.d4grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET);
3538 	}
3539 	if (rdev->num_crtc >= 6) {
3540 		rdev->irq.stat_regs.evergreen.d5grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET);
3541 		rdev->irq.stat_regs.evergreen.d6grph_int = RREG32(GRPH_INT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET);
3542 	}
3543 
3544 	if (rdev->irq.stat_regs.evergreen.d1grph_int & GRPH_PFLIP_INT_OCCURRED)
3545 		WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3546 	if (rdev->irq.stat_regs.evergreen.d2grph_int & GRPH_PFLIP_INT_OCCURRED)
3547 		WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3548 	if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT)
3549 		WREG32(VBLANK_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VBLANK_ACK);
3550 	if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT)
3551 		WREG32(VLINE_STATUS + EVERGREEN_CRTC0_REGISTER_OFFSET, VLINE_ACK);
3552 	if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT)
3553 		WREG32(VBLANK_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VBLANK_ACK);
3554 	if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT)
3555 		WREG32(VLINE_STATUS + EVERGREEN_CRTC1_REGISTER_OFFSET, VLINE_ACK);
3556 
3557 	if (rdev->num_crtc >= 4) {
3558 		if (rdev->irq.stat_regs.evergreen.d3grph_int & GRPH_PFLIP_INT_OCCURRED)
3559 			WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3560 		if (rdev->irq.stat_regs.evergreen.d4grph_int & GRPH_PFLIP_INT_OCCURRED)
3561 			WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3562 		if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT)
3563 			WREG32(VBLANK_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VBLANK_ACK);
3564 		if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT)
3565 			WREG32(VLINE_STATUS + EVERGREEN_CRTC2_REGISTER_OFFSET, VLINE_ACK);
3566 		if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT)
3567 			WREG32(VBLANK_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VBLANK_ACK);
3568 		if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT)
3569 			WREG32(VLINE_STATUS + EVERGREEN_CRTC3_REGISTER_OFFSET, VLINE_ACK);
3570 	}
3571 
3572 	if (rdev->num_crtc >= 6) {
3573 		if (rdev->irq.stat_regs.evergreen.d5grph_int & GRPH_PFLIP_INT_OCCURRED)
3574 			WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3575 		if (rdev->irq.stat_regs.evergreen.d6grph_int & GRPH_PFLIP_INT_OCCURRED)
3576 			WREG32(GRPH_INT_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, GRPH_PFLIP_INT_CLEAR);
3577 		if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT)
3578 			WREG32(VBLANK_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VBLANK_ACK);
3579 		if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT)
3580 			WREG32(VLINE_STATUS + EVERGREEN_CRTC4_REGISTER_OFFSET, VLINE_ACK);
3581 		if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT)
3582 			WREG32(VBLANK_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VBLANK_ACK);
3583 		if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT)
3584 			WREG32(VLINE_STATUS + EVERGREEN_CRTC5_REGISTER_OFFSET, VLINE_ACK);
3585 	}
3586 
3587 	if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
3588 		tmp = RREG32(DC_HPD1_INT_CONTROL);
3589 		tmp |= DC_HPDx_INT_ACK;
3590 		WREG32(DC_HPD1_INT_CONTROL, tmp);
3591 	}
3592 	if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
3593 		tmp = RREG32(DC_HPD2_INT_CONTROL);
3594 		tmp |= DC_HPDx_INT_ACK;
3595 		WREG32(DC_HPD2_INT_CONTROL, tmp);
3596 	}
3597 	if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
3598 		tmp = RREG32(DC_HPD3_INT_CONTROL);
3599 		tmp |= DC_HPDx_INT_ACK;
3600 		WREG32(DC_HPD3_INT_CONTROL, tmp);
3601 	}
3602 	if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
3603 		tmp = RREG32(DC_HPD4_INT_CONTROL);
3604 		tmp |= DC_HPDx_INT_ACK;
3605 		WREG32(DC_HPD4_INT_CONTROL, tmp);
3606 	}
3607 	if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
3608 		tmp = RREG32(DC_HPD5_INT_CONTROL);
3609 		tmp |= DC_HPDx_INT_ACK;
3610 		WREG32(DC_HPD5_INT_CONTROL, tmp);
3611 	}
3612 	if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
3613 		tmp = RREG32(DC_HPD5_INT_CONTROL);
3614 		tmp |= DC_HPDx_INT_ACK;
3615 		WREG32(DC_HPD6_INT_CONTROL, tmp);
3616 	}
3617 }
3618 
3619 static void si_irq_disable(struct radeon_device *rdev)
3620 {
3621 	si_disable_interrupts(rdev);
3622 	/* Wait and acknowledge irq */
3623 	mdelay(1);
3624 	si_irq_ack(rdev);
3625 	si_disable_interrupt_state(rdev);
3626 }
3627 
3628 static void si_irq_suspend(struct radeon_device *rdev)
3629 {
3630 	si_irq_disable(rdev);
3631 	si_rlc_stop(rdev);
3632 }
3633 
3634 static void si_irq_fini(struct radeon_device *rdev)
3635 {
3636 	si_irq_suspend(rdev);
3637 	r600_ih_ring_fini(rdev);
3638 }
3639 
3640 static inline u32 si_get_ih_wptr(struct radeon_device *rdev)
3641 {
3642 	u32 wptr, tmp;
3643 
3644 	if (rdev->wb.enabled)
3645 		wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
3646 	else
3647 		wptr = RREG32(IH_RB_WPTR);
3648 
3649 	if (wptr & RB_OVERFLOW) {
3650 		/* When a ring buffer overflow happen start parsing interrupt
3651 		 * from the last not overwritten vector (wptr + 16). Hopefully
3652 		 * this should allow us to catchup.
3653 		 */
3654 		dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, %d, %d)\n",
3655 			wptr, rdev->ih.rptr, (wptr + 16) + rdev->ih.ptr_mask);
3656 		rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
3657 		tmp = RREG32(IH_RB_CNTL);
3658 		tmp |= IH_WPTR_OVERFLOW_CLEAR;
3659 		WREG32(IH_RB_CNTL, tmp);
3660 	}
3661 	return (wptr & rdev->ih.ptr_mask);
3662 }
3663 
3664 /*        SI IV Ring
3665  * Each IV ring entry is 128 bits:
3666  * [7:0]    - interrupt source id
3667  * [31:8]   - reserved
3668  * [59:32]  - interrupt source data
3669  * [63:60]  - reserved
3670  * [71:64]  - RINGID
3671  * [79:72]  - VMID
3672  * [127:80] - reserved
3673  */
3674 int si_irq_process(struct radeon_device *rdev)
3675 {
3676 	u32 wptr;
3677 	u32 rptr;
3678 	u32 src_id, src_data, ring_id;
3679 	u32 ring_index;
3680 	bool queue_hotplug = false;
3681 
3682 	if (!rdev->ih.enabled || rdev->shutdown)
3683 		return IRQ_NONE;
3684 
3685 	wptr = si_get_ih_wptr(rdev);
3686 
3687 restart_ih:
3688 	/* is somebody else already processing irqs? */
3689 	if (atomic_xchg(&rdev->ih.lock, 1))
3690 		return IRQ_NONE;
3691 
3692 	rptr = rdev->ih.rptr;
3693 	DRM_DEBUG("si_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
3694 
3695 	/* Order reading of wptr vs. reading of IH ring data */
3696 	rmb();
3697 
3698 	/* display interrupts */
3699 	si_irq_ack(rdev);
3700 
3701 	while (rptr != wptr) {
3702 		/* wptr/rptr are in bytes! */
3703 		ring_index = rptr / 4;
3704 		src_id =  le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff;
3705 		src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff;
3706 		ring_id = le32_to_cpu(rdev->ih.ring[ring_index + 2]) & 0xff;
3707 
3708 		switch (src_id) {
3709 		case 1: /* D1 vblank/vline */
3710 			switch (src_data) {
3711 			case 0: /* D1 vblank */
3712 				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VBLANK_INTERRUPT) {
3713 					if (rdev->irq.crtc_vblank_int[0]) {
3714 						drm_handle_vblank(rdev->ddev, 0);
3715 						rdev->pm.vblank_sync = true;
3716 						wake_up(&rdev->irq.vblank_queue);
3717 					}
3718 					if (atomic_read(&rdev->irq.pflip[0]))
3719 						radeon_crtc_handle_flip(rdev, 0);
3720 					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
3721 					DRM_DEBUG("IH: D1 vblank\n");
3722 				}
3723 				break;
3724 			case 1: /* D1 vline */
3725 				if (rdev->irq.stat_regs.evergreen.disp_int & LB_D1_VLINE_INTERRUPT) {
3726 					rdev->irq.stat_regs.evergreen.disp_int &= ~LB_D1_VLINE_INTERRUPT;
3727 					DRM_DEBUG("IH: D1 vline\n");
3728 				}
3729 				break;
3730 			default:
3731 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3732 				break;
3733 			}
3734 			break;
3735 		case 2: /* D2 vblank/vline */
3736 			switch (src_data) {
3737 			case 0: /* D2 vblank */
3738 				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VBLANK_INTERRUPT) {
3739 					if (rdev->irq.crtc_vblank_int[1]) {
3740 						drm_handle_vblank(rdev->ddev, 1);
3741 						rdev->pm.vblank_sync = true;
3742 						wake_up(&rdev->irq.vblank_queue);
3743 					}
3744 					if (atomic_read(&rdev->irq.pflip[1]))
3745 						radeon_crtc_handle_flip(rdev, 1);
3746 					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VBLANK_INTERRUPT;
3747 					DRM_DEBUG("IH: D2 vblank\n");
3748 				}
3749 				break;
3750 			case 1: /* D2 vline */
3751 				if (rdev->irq.stat_regs.evergreen.disp_int_cont & LB_D2_VLINE_INTERRUPT) {
3752 					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~LB_D2_VLINE_INTERRUPT;
3753 					DRM_DEBUG("IH: D2 vline\n");
3754 				}
3755 				break;
3756 			default:
3757 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3758 				break;
3759 			}
3760 			break;
3761 		case 3: /* D3 vblank/vline */
3762 			switch (src_data) {
3763 			case 0: /* D3 vblank */
3764 				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VBLANK_INTERRUPT) {
3765 					if (rdev->irq.crtc_vblank_int[2]) {
3766 						drm_handle_vblank(rdev->ddev, 2);
3767 						rdev->pm.vblank_sync = true;
3768 						wake_up(&rdev->irq.vblank_queue);
3769 					}
3770 					if (atomic_read(&rdev->irq.pflip[2]))
3771 						radeon_crtc_handle_flip(rdev, 2);
3772 					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VBLANK_INTERRUPT;
3773 					DRM_DEBUG("IH: D3 vblank\n");
3774 				}
3775 				break;
3776 			case 1: /* D3 vline */
3777 				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & LB_D3_VLINE_INTERRUPT) {
3778 					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~LB_D3_VLINE_INTERRUPT;
3779 					DRM_DEBUG("IH: D3 vline\n");
3780 				}
3781 				break;
3782 			default:
3783 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3784 				break;
3785 			}
3786 			break;
3787 		case 4: /* D4 vblank/vline */
3788 			switch (src_data) {
3789 			case 0: /* D4 vblank */
3790 				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VBLANK_INTERRUPT) {
3791 					if (rdev->irq.crtc_vblank_int[3]) {
3792 						drm_handle_vblank(rdev->ddev, 3);
3793 						rdev->pm.vblank_sync = true;
3794 						wake_up(&rdev->irq.vblank_queue);
3795 					}
3796 					if (atomic_read(&rdev->irq.pflip[3]))
3797 						radeon_crtc_handle_flip(rdev, 3);
3798 					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VBLANK_INTERRUPT;
3799 					DRM_DEBUG("IH: D4 vblank\n");
3800 				}
3801 				break;
3802 			case 1: /* D4 vline */
3803 				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & LB_D4_VLINE_INTERRUPT) {
3804 					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~LB_D4_VLINE_INTERRUPT;
3805 					DRM_DEBUG("IH: D4 vline\n");
3806 				}
3807 				break;
3808 			default:
3809 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3810 				break;
3811 			}
3812 			break;
3813 		case 5: /* D5 vblank/vline */
3814 			switch (src_data) {
3815 			case 0: /* D5 vblank */
3816 				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VBLANK_INTERRUPT) {
3817 					if (rdev->irq.crtc_vblank_int[4]) {
3818 						drm_handle_vblank(rdev->ddev, 4);
3819 						rdev->pm.vblank_sync = true;
3820 						wake_up(&rdev->irq.vblank_queue);
3821 					}
3822 					if (atomic_read(&rdev->irq.pflip[4]))
3823 						radeon_crtc_handle_flip(rdev, 4);
3824 					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VBLANK_INTERRUPT;
3825 					DRM_DEBUG("IH: D5 vblank\n");
3826 				}
3827 				break;
3828 			case 1: /* D5 vline */
3829 				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & LB_D5_VLINE_INTERRUPT) {
3830 					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~LB_D5_VLINE_INTERRUPT;
3831 					DRM_DEBUG("IH: D5 vline\n");
3832 				}
3833 				break;
3834 			default:
3835 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3836 				break;
3837 			}
3838 			break;
3839 		case 6: /* D6 vblank/vline */
3840 			switch (src_data) {
3841 			case 0: /* D6 vblank */
3842 				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VBLANK_INTERRUPT) {
3843 					if (rdev->irq.crtc_vblank_int[5]) {
3844 						drm_handle_vblank(rdev->ddev, 5);
3845 						rdev->pm.vblank_sync = true;
3846 						wake_up(&rdev->irq.vblank_queue);
3847 					}
3848 					if (atomic_read(&rdev->irq.pflip[5]))
3849 						radeon_crtc_handle_flip(rdev, 5);
3850 					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VBLANK_INTERRUPT;
3851 					DRM_DEBUG("IH: D6 vblank\n");
3852 				}
3853 				break;
3854 			case 1: /* D6 vline */
3855 				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & LB_D6_VLINE_INTERRUPT) {
3856 					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~LB_D6_VLINE_INTERRUPT;
3857 					DRM_DEBUG("IH: D6 vline\n");
3858 				}
3859 				break;
3860 			default:
3861 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3862 				break;
3863 			}
3864 			break;
3865 		case 42: /* HPD hotplug */
3866 			switch (src_data) {
3867 			case 0:
3868 				if (rdev->irq.stat_regs.evergreen.disp_int & DC_HPD1_INTERRUPT) {
3869 					rdev->irq.stat_regs.evergreen.disp_int &= ~DC_HPD1_INTERRUPT;
3870 					queue_hotplug = true;
3871 					DRM_DEBUG("IH: HPD1\n");
3872 				}
3873 				break;
3874 			case 1:
3875 				if (rdev->irq.stat_regs.evergreen.disp_int_cont & DC_HPD2_INTERRUPT) {
3876 					rdev->irq.stat_regs.evergreen.disp_int_cont &= ~DC_HPD2_INTERRUPT;
3877 					queue_hotplug = true;
3878 					DRM_DEBUG("IH: HPD2\n");
3879 				}
3880 				break;
3881 			case 2:
3882 				if (rdev->irq.stat_regs.evergreen.disp_int_cont2 & DC_HPD3_INTERRUPT) {
3883 					rdev->irq.stat_regs.evergreen.disp_int_cont2 &= ~DC_HPD3_INTERRUPT;
3884 					queue_hotplug = true;
3885 					DRM_DEBUG("IH: HPD3\n");
3886 				}
3887 				break;
3888 			case 3:
3889 				if (rdev->irq.stat_regs.evergreen.disp_int_cont3 & DC_HPD4_INTERRUPT) {
3890 					rdev->irq.stat_regs.evergreen.disp_int_cont3 &= ~DC_HPD4_INTERRUPT;
3891 					queue_hotplug = true;
3892 					DRM_DEBUG("IH: HPD4\n");
3893 				}
3894 				break;
3895 			case 4:
3896 				if (rdev->irq.stat_regs.evergreen.disp_int_cont4 & DC_HPD5_INTERRUPT) {
3897 					rdev->irq.stat_regs.evergreen.disp_int_cont4 &= ~DC_HPD5_INTERRUPT;
3898 					queue_hotplug = true;
3899 					DRM_DEBUG("IH: HPD5\n");
3900 				}
3901 				break;
3902 			case 5:
3903 				if (rdev->irq.stat_regs.evergreen.disp_int_cont5 & DC_HPD6_INTERRUPT) {
3904 					rdev->irq.stat_regs.evergreen.disp_int_cont5 &= ~DC_HPD6_INTERRUPT;
3905 					queue_hotplug = true;
3906 					DRM_DEBUG("IH: HPD6\n");
3907 				}
3908 				break;
3909 			default:
3910 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3911 				break;
3912 			}
3913 			break;
3914 		case 146:
3915 		case 147:
3916 			dev_err(rdev->dev, "GPU fault detected: %d 0x%08x\n", src_id, src_data);
3917 			dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
3918 				RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR));
3919 			dev_err(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
3920 				RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
3921 			/* reset addr and status */
3922 			WREG32_P(VM_CONTEXT1_CNTL2, 1, ~1);
3923 			break;
3924 		case 176: /* RINGID0 CP_INT */
3925 			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
3926 			break;
3927 		case 177: /* RINGID1 CP_INT */
3928 			radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
3929 			break;
3930 		case 178: /* RINGID2 CP_INT */
3931 			radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
3932 			break;
3933 		case 181: /* CP EOP event */
3934 			DRM_DEBUG("IH: CP EOP\n");
3935 			switch (ring_id) {
3936 			case 0:
3937 				radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
3938 				break;
3939 			case 1:
3940 				radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
3941 				break;
3942 			case 2:
3943 				radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
3944 				break;
3945 			}
3946 			break;
3947 		case 224: /* DMA trap event */
3948 			DRM_DEBUG("IH: DMA trap\n");
3949 			radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
3950 			break;
3951 		case 233: /* GUI IDLE */
3952 			DRM_DEBUG("IH: GUI idle\n");
3953 			break;
3954 		case 244: /* DMA trap event */
3955 			DRM_DEBUG("IH: DMA1 trap\n");
3956 			radeon_fence_process(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
3957 			break;
3958 		default:
3959 			DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
3960 			break;
3961 		}
3962 
3963 		/* wptr/rptr are in bytes! */
3964 		rptr += 16;
3965 		rptr &= rdev->ih.ptr_mask;
3966 	}
3967 	if (queue_hotplug)
3968 		schedule_work(&rdev->hotplug_work);
3969 	rdev->ih.rptr = rptr;
3970 	WREG32(IH_RB_RPTR, rdev->ih.rptr);
3971 	atomic_set(&rdev->ih.lock, 0);
3972 
3973 	/* make sure wptr hasn't changed while processing */
3974 	wptr = si_get_ih_wptr(rdev);
3975 	if (wptr != rptr)
3976 		goto restart_ih;
3977 
3978 	return IRQ_HANDLED;
3979 }
3980 
3981 /**
3982  * si_copy_dma - copy pages using the DMA engine
3983  *
3984  * @rdev: radeon_device pointer
3985  * @src_offset: src GPU address
3986  * @dst_offset: dst GPU address
3987  * @num_gpu_pages: number of GPU pages to xfer
3988  * @fence: radeon fence object
3989  *
3990  * Copy GPU paging using the DMA engine (SI).
3991  * Used by the radeon ttm implementation to move pages if
3992  * registered as the asic copy callback.
3993  */
3994 int si_copy_dma(struct radeon_device *rdev,
3995 		uint64_t src_offset, uint64_t dst_offset,
3996 		unsigned num_gpu_pages,
3997 		struct radeon_fence **fence)
3998 {
3999 	struct radeon_semaphore *sem = NULL;
4000 	int ring_index = rdev->asic->copy.dma_ring_index;
4001 	struct radeon_ring *ring = &rdev->ring[ring_index];
4002 	u32 size_in_bytes, cur_size_in_bytes;
4003 	int i, num_loops;
4004 	int r = 0;
4005 
4006 	r = radeon_semaphore_create(rdev, &sem);
4007 	if (r) {
4008 		DRM_ERROR("radeon: moving bo (%d).\n", r);
4009 		return r;
4010 	}
4011 
4012 	size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
4013 	num_loops = DIV_ROUND_UP(size_in_bytes, 0xfffff);
4014 	r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
4015 	if (r) {
4016 		DRM_ERROR("radeon: moving bo (%d).\n", r);
4017 		radeon_semaphore_free(rdev, &sem, NULL);
4018 		return r;
4019 	}
4020 
4021 	if (radeon_fence_need_sync(*fence, ring->idx)) {
4022 		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
4023 					    ring->idx);
4024 		radeon_fence_note_sync(*fence, ring->idx);
4025 	} else {
4026 		radeon_semaphore_free(rdev, &sem, NULL);
4027 	}
4028 
4029 	for (i = 0; i < num_loops; i++) {
4030 		cur_size_in_bytes = size_in_bytes;
4031 		if (cur_size_in_bytes > 0xFFFFF)
4032 			cur_size_in_bytes = 0xFFFFF;
4033 		size_in_bytes -= cur_size_in_bytes;
4034 		radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 1, 0, 0, cur_size_in_bytes));
4035 		radeon_ring_write(ring, dst_offset & 0xffffffff);
4036 		radeon_ring_write(ring, src_offset & 0xffffffff);
4037 		radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
4038 		radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
4039 		src_offset += cur_size_in_bytes;
4040 		dst_offset += cur_size_in_bytes;
4041 	}
4042 
4043 	r = radeon_fence_emit(rdev, fence, ring->idx);
4044 	if (r) {
4045 		radeon_ring_unlock_undo(rdev, ring);
4046 		return r;
4047 	}
4048 
4049 	radeon_ring_unlock_commit(rdev, ring);
4050 	radeon_semaphore_free(rdev, &sem, *fence);
4051 
4052 	return r;
4053 }
4054 
4055 /*
4056  * startup/shutdown callbacks
4057  */
4058 static int si_startup(struct radeon_device *rdev)
4059 {
4060 	struct radeon_ring *ring;
4061 	int r;
4062 
4063 	if (!rdev->me_fw || !rdev->pfp_fw || !rdev->ce_fw ||
4064 	    !rdev->rlc_fw || !rdev->mc_fw) {
4065 		r = si_init_microcode(rdev);
4066 		if (r) {
4067 			DRM_ERROR("Failed to load firmware!\n");
4068 			return r;
4069 		}
4070 	}
4071 
4072 	r = si_mc_load_microcode(rdev);
4073 	if (r) {
4074 		DRM_ERROR("Failed to load MC firmware!\n");
4075 		return r;
4076 	}
4077 
4078 	r = r600_vram_scratch_init(rdev);
4079 	if (r)
4080 		return r;
4081 
4082 	si_mc_program(rdev);
4083 	r = si_pcie_gart_enable(rdev);
4084 	if (r)
4085 		return r;
4086 	si_gpu_init(rdev);
4087 
4088 #if 0
4089 	r = evergreen_blit_init(rdev);
4090 	if (r) {
4091 		r600_blit_fini(rdev);
4092 		rdev->asic->copy = NULL;
4093 		dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
4094 	}
4095 #endif
4096 	/* allocate rlc buffers */
4097 	r = si_rlc_init(rdev);
4098 	if (r) {
4099 		DRM_ERROR("Failed to init rlc BOs!\n");
4100 		return r;
4101 	}
4102 
4103 	/* allocate wb buffer */
4104 	r = radeon_wb_init(rdev);
4105 	if (r)
4106 		return r;
4107 
4108 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
4109 	if (r) {
4110 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
4111 		return r;
4112 	}
4113 
4114 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
4115 	if (r) {
4116 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
4117 		return r;
4118 	}
4119 
4120 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
4121 	if (r) {
4122 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
4123 		return r;
4124 	}
4125 
4126 	r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
4127 	if (r) {
4128 		dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
4129 		return r;
4130 	}
4131 
4132 	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
4133 	if (r) {
4134 		dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
4135 		return r;
4136 	}
4137 
4138 	/* Enable IRQ */
4139 	r = si_irq_init(rdev);
4140 	if (r) {
4141 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
4142 		radeon_irq_kms_fini(rdev);
4143 		return r;
4144 	}
4145 	si_irq_set(rdev);
4146 
4147 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
4148 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
4149 			     CP_RB0_RPTR, CP_RB0_WPTR,
4150 			     0, 0xfffff, RADEON_CP_PACKET2);
4151 	if (r)
4152 		return r;
4153 
4154 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
4155 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP1_RPTR_OFFSET,
4156 			     CP_RB1_RPTR, CP_RB1_WPTR,
4157 			     0, 0xfffff, RADEON_CP_PACKET2);
4158 	if (r)
4159 		return r;
4160 
4161 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
4162 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP2_RPTR_OFFSET,
4163 			     CP_RB2_RPTR, CP_RB2_WPTR,
4164 			     0, 0xfffff, RADEON_CP_PACKET2);
4165 	if (r)
4166 		return r;
4167 
4168 	ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
4169 	r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
4170 			     DMA_RB_RPTR + DMA0_REGISTER_OFFSET,
4171 			     DMA_RB_WPTR + DMA0_REGISTER_OFFSET,
4172 			     2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
4173 	if (r)
4174 		return r;
4175 
4176 	ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
4177 	r = radeon_ring_init(rdev, ring, ring->ring_size, CAYMAN_WB_DMA1_RPTR_OFFSET,
4178 			     DMA_RB_RPTR + DMA1_REGISTER_OFFSET,
4179 			     DMA_RB_WPTR + DMA1_REGISTER_OFFSET,
4180 			     2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
4181 	if (r)
4182 		return r;
4183 
4184 	r = si_cp_load_microcode(rdev);
4185 	if (r)
4186 		return r;
4187 	r = si_cp_resume(rdev);
4188 	if (r)
4189 		return r;
4190 
4191 	r = cayman_dma_resume(rdev);
4192 	if (r)
4193 		return r;
4194 
4195 	r = radeon_ib_pool_init(rdev);
4196 	if (r) {
4197 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
4198 		return r;
4199 	}
4200 
4201 	r = radeon_vm_manager_init(rdev);
4202 	if (r) {
4203 		dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
4204 		return r;
4205 	}
4206 
4207 	return 0;
4208 }
4209 
4210 int si_resume(struct radeon_device *rdev)
4211 {
4212 	int r;
4213 
4214 	/* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
4215 	 * posting will perform necessary task to bring back GPU into good
4216 	 * shape.
4217 	 */
4218 	/* post card */
4219 	atom_asic_init(rdev->mode_info.atom_context);
4220 
4221 	rdev->accel_working = true;
4222 	r = si_startup(rdev);
4223 	if (r) {
4224 		DRM_ERROR("si startup failed on resume\n");
4225 		rdev->accel_working = false;
4226 		return r;
4227 	}
4228 
4229 	return r;
4230 
4231 }
4232 
4233 int si_suspend(struct radeon_device *rdev)
4234 {
4235 	si_cp_enable(rdev, false);
4236 	cayman_dma_stop(rdev);
4237 	si_irq_suspend(rdev);
4238 	radeon_wb_disable(rdev);
4239 	si_pcie_gart_disable(rdev);
4240 	return 0;
4241 }
4242 
4243 /* Plan is to move initialization in that function and use
4244  * helper function so that radeon_device_init pretty much
4245  * do nothing more than calling asic specific function. This
4246  * should also allow to remove a bunch of callback function
4247  * like vram_info.
4248  */
4249 int si_init(struct radeon_device *rdev)
4250 {
4251 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
4252 	int r;
4253 
4254 	/* Read BIOS */
4255 	if (!radeon_get_bios(rdev)) {
4256 		if (ASIC_IS_AVIVO(rdev))
4257 			return -EINVAL;
4258 	}
4259 	/* Must be an ATOMBIOS */
4260 	if (!rdev->is_atom_bios) {
4261 		dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
4262 		return -EINVAL;
4263 	}
4264 	r = radeon_atombios_init(rdev);
4265 	if (r)
4266 		return r;
4267 
4268 	/* Post card if necessary */
4269 	if (!radeon_card_posted(rdev)) {
4270 		if (!rdev->bios) {
4271 			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
4272 			return -EINVAL;
4273 		}
4274 		DRM_INFO("GPU not posted. posting now...\n");
4275 		atom_asic_init(rdev->mode_info.atom_context);
4276 	}
4277 	/* Initialize scratch registers */
4278 	si_scratch_init(rdev);
4279 	/* Initialize surface registers */
4280 	radeon_surface_init(rdev);
4281 	/* Initialize clocks */
4282 	radeon_get_clock_info(rdev->ddev);
4283 
4284 	/* Fence driver */
4285 	r = radeon_fence_driver_init(rdev);
4286 	if (r)
4287 		return r;
4288 
4289 	/* initialize memory controller */
4290 	r = si_mc_init(rdev);
4291 	if (r)
4292 		return r;
4293 	/* Memory manager */
4294 	r = radeon_bo_init(rdev);
4295 	if (r)
4296 		return r;
4297 
4298 	r = radeon_irq_kms_init(rdev);
4299 	if (r)
4300 		return r;
4301 
4302 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
4303 	ring->ring_obj = NULL;
4304 	r600_ring_init(rdev, ring, 1024 * 1024);
4305 
4306 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
4307 	ring->ring_obj = NULL;
4308 	r600_ring_init(rdev, ring, 1024 * 1024);
4309 
4310 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
4311 	ring->ring_obj = NULL;
4312 	r600_ring_init(rdev, ring, 1024 * 1024);
4313 
4314 	ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
4315 	ring->ring_obj = NULL;
4316 	r600_ring_init(rdev, ring, 64 * 1024);
4317 
4318 	ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
4319 	ring->ring_obj = NULL;
4320 	r600_ring_init(rdev, ring, 64 * 1024);
4321 
4322 	rdev->ih.ring_obj = NULL;
4323 	r600_ih_ring_init(rdev, 64 * 1024);
4324 
4325 	r = r600_pcie_gart_init(rdev);
4326 	if (r)
4327 		return r;
4328 
4329 	rdev->accel_working = true;
4330 	r = si_startup(rdev);
4331 	if (r) {
4332 		dev_err(rdev->dev, "disabling GPU acceleration\n");
4333 		si_cp_fini(rdev);
4334 		cayman_dma_fini(rdev);
4335 		si_irq_fini(rdev);
4336 		si_rlc_fini(rdev);
4337 		radeon_wb_fini(rdev);
4338 		radeon_ib_pool_fini(rdev);
4339 		radeon_vm_manager_fini(rdev);
4340 		radeon_irq_kms_fini(rdev);
4341 		si_pcie_gart_fini(rdev);
4342 		rdev->accel_working = false;
4343 	}
4344 
4345 	/* Don't start up if the MC ucode is missing.
4346 	 * The default clocks and voltages before the MC ucode
4347 	 * is loaded are not suffient for advanced operations.
4348 	 */
4349 	if (!rdev->mc_fw) {
4350 		DRM_ERROR("radeon: MC ucode required for NI+.\n");
4351 		return -EINVAL;
4352 	}
4353 
4354 	return 0;
4355 }
4356 
4357 void si_fini(struct radeon_device *rdev)
4358 {
4359 #if 0
4360 	r600_blit_fini(rdev);
4361 #endif
4362 	si_cp_fini(rdev);
4363 	cayman_dma_fini(rdev);
4364 	si_irq_fini(rdev);
4365 	si_rlc_fini(rdev);
4366 	radeon_wb_fini(rdev);
4367 	radeon_vm_manager_fini(rdev);
4368 	radeon_ib_pool_fini(rdev);
4369 	radeon_irq_kms_fini(rdev);
4370 	si_pcie_gart_fini(rdev);
4371 	r600_vram_scratch_fini(rdev);
4372 	radeon_gem_fini(rdev);
4373 	radeon_fence_driver_fini(rdev);
4374 	radeon_bo_fini(rdev);
4375 	radeon_atombios_fini(rdev);
4376 	kfree(rdev->bios);
4377 	rdev->bios = NULL;
4378 }
4379 
4380 /**
4381  * si_get_gpu_clock - return GPU clock counter snapshot
4382  *
4383  * @rdev: radeon_device pointer
4384  *
4385  * Fetches a GPU clock counter snapshot (SI).
4386  * Returns the 64 bit clock counter snapshot.
4387  */
4388 uint64_t si_get_gpu_clock(struct radeon_device *rdev)
4389 {
4390 	uint64_t clock;
4391 
4392 	mutex_lock(&rdev->gpu_clock_mutex);
4393 	WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
4394 	clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
4395 	        ((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
4396 	mutex_unlock(&rdev->gpu_clock_mutex);
4397 	return clock;
4398 }
4399