xref: /dragonfly/sys/dev/drm/radeon/r600.c (revision 01bedb5a)
1 /*
2  * Copyright 2008 Advanced Micro Devices, Inc.
3  * Copyright 2008 Red Hat Inc.
4  * Copyright 2009 Jerome Glisse.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  *
24  * Authors: Dave Airlie
25  *          Alex Deucher
26  *          Jerome Glisse
27  */
28 #include <linux/seq_file.h>
29 #include <linux/firmware.h>
30 #include <linux/module.h>
31 #include <drm/drmP.h>
32 #include <drm/radeon_drm.h>
33 #include "radeon.h"
34 #include "radeon_asic.h"
35 #include "radeon_audio.h"
36 #include "radeon_mode.h"
37 #include "r600d.h"
38 #include "atom.h"
39 #include "avivod.h"
40 #include "radeon_ucode.h"
41 
42 /* Firmware Names */
43 MODULE_FIRMWARE("radeon/R600_pfp.bin");
44 MODULE_FIRMWARE("radeon/R600_me.bin");
45 MODULE_FIRMWARE("radeon/RV610_pfp.bin");
46 MODULE_FIRMWARE("radeon/RV610_me.bin");
47 MODULE_FIRMWARE("radeon/RV630_pfp.bin");
48 MODULE_FIRMWARE("radeon/RV630_me.bin");
49 MODULE_FIRMWARE("radeon/RV620_pfp.bin");
50 MODULE_FIRMWARE("radeon/RV620_me.bin");
51 MODULE_FIRMWARE("radeon/RV635_pfp.bin");
52 MODULE_FIRMWARE("radeon/RV635_me.bin");
53 MODULE_FIRMWARE("radeon/RV670_pfp.bin");
54 MODULE_FIRMWARE("radeon/RV670_me.bin");
55 MODULE_FIRMWARE("radeon/RS780_pfp.bin");
56 MODULE_FIRMWARE("radeon/RS780_me.bin");
57 MODULE_FIRMWARE("radeon/RV770_pfp.bin");
58 MODULE_FIRMWARE("radeon/RV770_me.bin");
59 MODULE_FIRMWARE("radeon/RV770_smc.bin");
60 MODULE_FIRMWARE("radeon/RV730_pfp.bin");
61 MODULE_FIRMWARE("radeon/RV730_me.bin");
62 MODULE_FIRMWARE("radeon/RV730_smc.bin");
63 MODULE_FIRMWARE("radeon/RV740_smc.bin");
64 MODULE_FIRMWARE("radeon/RV710_pfp.bin");
65 MODULE_FIRMWARE("radeon/RV710_me.bin");
66 MODULE_FIRMWARE("radeon/RV710_smc.bin");
67 MODULE_FIRMWARE("radeon/R600_rlc.bin");
68 MODULE_FIRMWARE("radeon/R700_rlc.bin");
69 MODULE_FIRMWARE("radeon/CEDAR_pfp.bin");
70 MODULE_FIRMWARE("radeon/CEDAR_me.bin");
71 MODULE_FIRMWARE("radeon/CEDAR_rlc.bin");
72 MODULE_FIRMWARE("radeon/CEDAR_smc.bin");
73 MODULE_FIRMWARE("radeon/REDWOOD_pfp.bin");
74 MODULE_FIRMWARE("radeon/REDWOOD_me.bin");
75 MODULE_FIRMWARE("radeon/REDWOOD_rlc.bin");
76 MODULE_FIRMWARE("radeon/REDWOOD_smc.bin");
77 MODULE_FIRMWARE("radeon/JUNIPER_pfp.bin");
78 MODULE_FIRMWARE("radeon/JUNIPER_me.bin");
79 MODULE_FIRMWARE("radeon/JUNIPER_rlc.bin");
80 MODULE_FIRMWARE("radeon/JUNIPER_smc.bin");
81 MODULE_FIRMWARE("radeon/CYPRESS_pfp.bin");
82 MODULE_FIRMWARE("radeon/CYPRESS_me.bin");
83 MODULE_FIRMWARE("radeon/CYPRESS_rlc.bin");
84 MODULE_FIRMWARE("radeon/CYPRESS_smc.bin");
85 MODULE_FIRMWARE("radeon/PALM_pfp.bin");
86 MODULE_FIRMWARE("radeon/PALM_me.bin");
87 MODULE_FIRMWARE("radeon/SUMO_rlc.bin");
88 MODULE_FIRMWARE("radeon/SUMO_pfp.bin");
89 MODULE_FIRMWARE("radeon/SUMO_me.bin");
90 MODULE_FIRMWARE("radeon/SUMO2_pfp.bin");
91 MODULE_FIRMWARE("radeon/SUMO2_me.bin");
92 
93 static const u32 crtc_offsets[2] =
94 {
95 	0,
96 	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
97 };
98 
99 int r600_debugfs_mc_info_init(struct radeon_device *rdev);
100 
101 /* r600,rv610,rv630,rv620,rv635,rv670 */
102 static void r600_gpu_init(struct radeon_device *rdev);
103 void r600_irq_disable(struct radeon_device *rdev);
104 static void r600_pcie_gen2_enable(struct radeon_device *rdev);
105 
106 /*
107  * Indirect registers accessor
108  */
109 u32 r600_rcu_rreg(struct radeon_device *rdev, u32 reg)
110 {
111 	u32 r;
112 
113 	lockmgr(&rdev->rcu_idx_lock, LK_EXCLUSIVE);
114 	WREG32(R600_RCU_INDEX, ((reg) & 0x1fff));
115 	r = RREG32(R600_RCU_DATA);
116 	lockmgr(&rdev->rcu_idx_lock, LK_RELEASE);
117 	return r;
118 }
119 
120 void r600_rcu_wreg(struct radeon_device *rdev, u32 reg, u32 v)
121 {
122 	lockmgr(&rdev->rcu_idx_lock, LK_EXCLUSIVE);
123 	WREG32(R600_RCU_INDEX, ((reg) & 0x1fff));
124 	WREG32(R600_RCU_DATA, (v));
125 	lockmgr(&rdev->rcu_idx_lock, LK_RELEASE);
126 }
127 
128 u32 r600_uvd_ctx_rreg(struct radeon_device *rdev, u32 reg)
129 {
130 	u32 r;
131 
132 	lockmgr(&rdev->uvd_idx_lock, LK_EXCLUSIVE);
133 	WREG32(R600_UVD_CTX_INDEX, ((reg) & 0x1ff));
134 	r = RREG32(R600_UVD_CTX_DATA);
135 	lockmgr(&rdev->uvd_idx_lock, LK_RELEASE);
136 	return r;
137 }
138 
139 void r600_uvd_ctx_wreg(struct radeon_device *rdev, u32 reg, u32 v)
140 {
141 	lockmgr(&rdev->uvd_idx_lock, LK_EXCLUSIVE);
142 	WREG32(R600_UVD_CTX_INDEX, ((reg) & 0x1ff));
143 	WREG32(R600_UVD_CTX_DATA, (v));
144 	lockmgr(&rdev->uvd_idx_lock, LK_RELEASE);
145 }
146 
147 /**
148  * r600_get_allowed_info_register - fetch the register for the info ioctl
149  *
150  * @rdev: radeon_device pointer
151  * @reg: register offset in bytes
152  * @val: register value
153  *
154  * Returns 0 for success or -EINVAL for an invalid register
155  *
156  */
157 int r600_get_allowed_info_register(struct radeon_device *rdev,
158 				   u32 reg, u32 *val)
159 {
160 	switch (reg) {
161 	case GRBM_STATUS:
162 	case GRBM_STATUS2:
163 	case R_000E50_SRBM_STATUS:
164 	case DMA_STATUS_REG:
165 	case UVD_STATUS:
166 		*val = RREG32(reg);
167 		return 0;
168 	default:
169 		return -EINVAL;
170 	}
171 }
172 
173 /**
174  * r600_get_xclk - get the xclk
175  *
176  * @rdev: radeon_device pointer
177  *
178  * Returns the reference clock used by the gfx engine
179  * (r6xx, IGPs, APUs).
180  */
181 u32 r600_get_xclk(struct radeon_device *rdev)
182 {
183 	return rdev->clock.spll.reference_freq;
184 }
185 
186 int r600_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
187 {
188 	unsigned fb_div = 0, ref_div, vclk_div = 0, dclk_div = 0;
189 	int r;
190 
191 	/* bypass vclk and dclk with bclk */
192 	WREG32_P(CG_UPLL_FUNC_CNTL_2,
193 		 VCLK_SRC_SEL(1) | DCLK_SRC_SEL(1),
194 		 ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));
195 
196 	/* assert BYPASS_EN, deassert UPLL_RESET, UPLL_SLEEP and UPLL_CTLREQ */
197 	WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~(
198 		 UPLL_RESET_MASK | UPLL_SLEEP_MASK | UPLL_CTLREQ_MASK));
199 
200 	if (rdev->family >= CHIP_RS780)
201 		WREG32_P(GFX_MACRO_BYPASS_CNTL, UPLL_BYPASS_CNTL,
202 			 ~UPLL_BYPASS_CNTL);
203 
204 	if (!vclk || !dclk) {
205 		/* keep the Bypass mode, put PLL to sleep */
206 		WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK);
207 		return 0;
208 	}
209 
210 	if (rdev->clock.spll.reference_freq == 10000)
211 		ref_div = 34;
212 	else
213 		ref_div = 4;
214 
215 	r = radeon_uvd_calc_upll_dividers(rdev, vclk, dclk, 50000, 160000,
216 					  ref_div + 1, 0xFFF, 2, 30, ~0,
217 					  &fb_div, &vclk_div, &dclk_div);
218 	if (r)
219 		return r;
220 
221 	if (rdev->family >= CHIP_RV670 && rdev->family < CHIP_RS780)
222 		fb_div >>= 1;
223 	else
224 		fb_div |= 1;
225 
226 	r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
227 	if (r)
228 		return r;
229 
230 	/* assert PLL_RESET */
231 	WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_RESET_MASK, ~UPLL_RESET_MASK);
232 
233 	/* For RS780 we have to choose ref clk */
234 	if (rdev->family >= CHIP_RS780)
235 		WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_REFCLK_SRC_SEL_MASK,
236 			 ~UPLL_REFCLK_SRC_SEL_MASK);
237 
238 	/* set the required fb, ref and post divder values */
239 	WREG32_P(CG_UPLL_FUNC_CNTL,
240 		 UPLL_FB_DIV(fb_div) |
241 		 UPLL_REF_DIV(ref_div),
242 		 ~(UPLL_FB_DIV_MASK | UPLL_REF_DIV_MASK));
243 	WREG32_P(CG_UPLL_FUNC_CNTL_2,
244 		 UPLL_SW_HILEN(vclk_div >> 1) |
245 		 UPLL_SW_LOLEN((vclk_div >> 1) + (vclk_div & 1)) |
246 		 UPLL_SW_HILEN2(dclk_div >> 1) |
247 		 UPLL_SW_LOLEN2((dclk_div >> 1) + (dclk_div & 1)) |
248 		 UPLL_DIVEN_MASK | UPLL_DIVEN2_MASK,
249 		 ~UPLL_SW_MASK);
250 
251 	/* give the PLL some time to settle */
252 	mdelay(15);
253 
254 	/* deassert PLL_RESET */
255 	WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_RESET_MASK);
256 
257 	mdelay(15);
258 
259 	/* deassert BYPASS EN */
260 	WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_BYPASS_EN_MASK);
261 
262 	if (rdev->family >= CHIP_RS780)
263 		WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~UPLL_BYPASS_CNTL);
264 
265 	r = radeon_uvd_send_upll_ctlreq(rdev, CG_UPLL_FUNC_CNTL);
266 	if (r)
267 		return r;
268 
269 	/* switch VCLK and DCLK selection */
270 	WREG32_P(CG_UPLL_FUNC_CNTL_2,
271 		 VCLK_SRC_SEL(2) | DCLK_SRC_SEL(2),
272 		 ~(VCLK_SRC_SEL_MASK | DCLK_SRC_SEL_MASK));
273 
274 	mdelay(100);
275 
276 	return 0;
277 }
278 
279 void dce3_program_fmt(struct drm_encoder *encoder)
280 {
281 	struct drm_device *dev = encoder->dev;
282 	struct radeon_device *rdev = dev->dev_private;
283 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
284 	struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
285 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
286 	int bpc = 0;
287 	u32 tmp = 0;
288 	enum radeon_connector_dither dither = RADEON_FMT_DITHER_DISABLE;
289 
290 	if (connector) {
291 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
292 		bpc = radeon_get_monitor_bpc(connector);
293 		dither = radeon_connector->dither;
294 	}
295 
296 	/* LVDS FMT is set up by atom */
297 	if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
298 		return;
299 
300 	/* not needed for analog */
301 	if ((radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC1) ||
302 	    (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC2))
303 		return;
304 
305 	if (bpc == 0)
306 		return;
307 
308 	switch (bpc) {
309 	case 6:
310 		if (dither == RADEON_FMT_DITHER_ENABLE)
311 			/* XXX sort out optimal dither settings */
312 			tmp |= FMT_SPATIAL_DITHER_EN;
313 		else
314 			tmp |= FMT_TRUNCATE_EN;
315 		break;
316 	case 8:
317 		if (dither == RADEON_FMT_DITHER_ENABLE)
318 			/* XXX sort out optimal dither settings */
319 			tmp |= (FMT_SPATIAL_DITHER_EN | FMT_SPATIAL_DITHER_DEPTH);
320 		else
321 			tmp |= (FMT_TRUNCATE_EN | FMT_TRUNCATE_DEPTH);
322 		break;
323 	case 10:
324 	default:
325 		/* not needed */
326 		break;
327 	}
328 
329 	WREG32(FMT_BIT_DEPTH_CONTROL + radeon_crtc->crtc_offset, tmp);
330 }
331 
332 /* get temperature in millidegrees */
333 int rv6xx_get_temp(struct radeon_device *rdev)
334 {
335 	u32 temp = (RREG32(CG_THERMAL_STATUS) & ASIC_T_MASK) >>
336 		ASIC_T_SHIFT;
337 	int actual_temp = temp & 0xff;
338 
339 	if (temp & 0x100)
340 		actual_temp -= 256;
341 
342 	return actual_temp * 1000;
343 }
344 
345 void r600_pm_get_dynpm_state(struct radeon_device *rdev)
346 {
347 	int i;
348 
349 	rdev->pm.dynpm_can_upclock = true;
350 	rdev->pm.dynpm_can_downclock = true;
351 
352 	/* power state array is low to high, default is first */
353 	if ((rdev->flags & RADEON_IS_IGP) || (rdev->family == CHIP_R600)) {
354 		int min_power_state_index = 0;
355 
356 		if (rdev->pm.num_power_states > 2)
357 			min_power_state_index = 1;
358 
359 		switch (rdev->pm.dynpm_planned_action) {
360 		case DYNPM_ACTION_MINIMUM:
361 			rdev->pm.requested_power_state_index = min_power_state_index;
362 			rdev->pm.requested_clock_mode_index = 0;
363 			rdev->pm.dynpm_can_downclock = false;
364 			break;
365 		case DYNPM_ACTION_DOWNCLOCK:
366 			if (rdev->pm.current_power_state_index == min_power_state_index) {
367 				rdev->pm.requested_power_state_index = rdev->pm.current_power_state_index;
368 				rdev->pm.dynpm_can_downclock = false;
369 			} else {
370 				if (rdev->pm.active_crtc_count > 1) {
371 					for (i = 0; i < rdev->pm.num_power_states; i++) {
372 						if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
373 							continue;
374 						else if (i >= rdev->pm.current_power_state_index) {
375 							rdev->pm.requested_power_state_index =
376 								rdev->pm.current_power_state_index;
377 							break;
378 						} else {
379 							rdev->pm.requested_power_state_index = i;
380 							break;
381 						}
382 					}
383 				} else {
384 					if (rdev->pm.current_power_state_index == 0)
385 						rdev->pm.requested_power_state_index =
386 							rdev->pm.num_power_states - 1;
387 					else
388 						rdev->pm.requested_power_state_index =
389 							rdev->pm.current_power_state_index - 1;
390 				}
391 			}
392 			rdev->pm.requested_clock_mode_index = 0;
393 			/* don't use the power state if crtcs are active and no display flag is set */
394 			if ((rdev->pm.active_crtc_count > 0) &&
395 			    (rdev->pm.power_state[rdev->pm.requested_power_state_index].
396 			     clock_info[rdev->pm.requested_clock_mode_index].flags &
397 			     RADEON_PM_MODE_NO_DISPLAY)) {
398 				rdev->pm.requested_power_state_index++;
399 			}
400 			break;
401 		case DYNPM_ACTION_UPCLOCK:
402 			if (rdev->pm.current_power_state_index == (rdev->pm.num_power_states - 1)) {
403 				rdev->pm.requested_power_state_index = rdev->pm.current_power_state_index;
404 				rdev->pm.dynpm_can_upclock = false;
405 			} else {
406 				if (rdev->pm.active_crtc_count > 1) {
407 					for (i = (rdev->pm.num_power_states - 1); i >= 0; i--) {
408 						if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
409 							continue;
410 						else if (i <= rdev->pm.current_power_state_index) {
411 							rdev->pm.requested_power_state_index =
412 								rdev->pm.current_power_state_index;
413 							break;
414 						} else {
415 							rdev->pm.requested_power_state_index = i;
416 							break;
417 						}
418 					}
419 				} else
420 					rdev->pm.requested_power_state_index =
421 						rdev->pm.current_power_state_index + 1;
422 			}
423 			rdev->pm.requested_clock_mode_index = 0;
424 			break;
425 		case DYNPM_ACTION_DEFAULT:
426 			rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
427 			rdev->pm.requested_clock_mode_index = 0;
428 			rdev->pm.dynpm_can_upclock = false;
429 			break;
430 		case DYNPM_ACTION_NONE:
431 		default:
432 			DRM_ERROR("Requested mode for not defined action\n");
433 			return;
434 		}
435 	} else {
436 		/* XXX select a power state based on AC/DC, single/dualhead, etc. */
437 		/* for now just select the first power state and switch between clock modes */
438 		/* power state array is low to high, default is first (0) */
439 		if (rdev->pm.active_crtc_count > 1) {
440 			rdev->pm.requested_power_state_index = -1;
441 			/* start at 1 as we don't want the default mode */
442 			for (i = 1; i < rdev->pm.num_power_states; i++) {
443 				if (rdev->pm.power_state[i].flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
444 					continue;
445 				else if ((rdev->pm.power_state[i].type == POWER_STATE_TYPE_PERFORMANCE) ||
446 					 (rdev->pm.power_state[i].type == POWER_STATE_TYPE_BATTERY)) {
447 					rdev->pm.requested_power_state_index = i;
448 					break;
449 				}
450 			}
451 			/* if nothing selected, grab the default state. */
452 			if (rdev->pm.requested_power_state_index == -1)
453 				rdev->pm.requested_power_state_index = 0;
454 		} else
455 			rdev->pm.requested_power_state_index = 1;
456 
457 		switch (rdev->pm.dynpm_planned_action) {
458 		case DYNPM_ACTION_MINIMUM:
459 			rdev->pm.requested_clock_mode_index = 0;
460 			rdev->pm.dynpm_can_downclock = false;
461 			break;
462 		case DYNPM_ACTION_DOWNCLOCK:
463 			if (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index) {
464 				if (rdev->pm.current_clock_mode_index == 0) {
465 					rdev->pm.requested_clock_mode_index = 0;
466 					rdev->pm.dynpm_can_downclock = false;
467 				} else
468 					rdev->pm.requested_clock_mode_index =
469 						rdev->pm.current_clock_mode_index - 1;
470 			} else {
471 				rdev->pm.requested_clock_mode_index = 0;
472 				rdev->pm.dynpm_can_downclock = false;
473 			}
474 			/* don't use the power state if crtcs are active and no display flag is set */
475 			if ((rdev->pm.active_crtc_count > 0) &&
476 			    (rdev->pm.power_state[rdev->pm.requested_power_state_index].
477 			     clock_info[rdev->pm.requested_clock_mode_index].flags &
478 			     RADEON_PM_MODE_NO_DISPLAY)) {
479 				rdev->pm.requested_clock_mode_index++;
480 			}
481 			break;
482 		case DYNPM_ACTION_UPCLOCK:
483 			if (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index) {
484 				if (rdev->pm.current_clock_mode_index ==
485 				    (rdev->pm.power_state[rdev->pm.requested_power_state_index].num_clock_modes - 1)) {
486 					rdev->pm.requested_clock_mode_index = rdev->pm.current_clock_mode_index;
487 					rdev->pm.dynpm_can_upclock = false;
488 				} else
489 					rdev->pm.requested_clock_mode_index =
490 						rdev->pm.current_clock_mode_index + 1;
491 			} else {
492 				rdev->pm.requested_clock_mode_index =
493 					rdev->pm.power_state[rdev->pm.requested_power_state_index].num_clock_modes - 1;
494 				rdev->pm.dynpm_can_upclock = false;
495 			}
496 			break;
497 		case DYNPM_ACTION_DEFAULT:
498 			rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
499 			rdev->pm.requested_clock_mode_index = 0;
500 			rdev->pm.dynpm_can_upclock = false;
501 			break;
502 		case DYNPM_ACTION_NONE:
503 		default:
504 			DRM_ERROR("Requested mode for not defined action\n");
505 			return;
506 		}
507 	}
508 
509 	DRM_DEBUG_DRIVER("Requested: e: %d m: %d p: %d\n",
510 		  rdev->pm.power_state[rdev->pm.requested_power_state_index].
511 		  clock_info[rdev->pm.requested_clock_mode_index].sclk,
512 		  rdev->pm.power_state[rdev->pm.requested_power_state_index].
513 		  clock_info[rdev->pm.requested_clock_mode_index].mclk,
514 		  rdev->pm.power_state[rdev->pm.requested_power_state_index].
515 		  pcie_lanes);
516 }
517 
518 void rs780_pm_init_profile(struct radeon_device *rdev)
519 {
520 	if (rdev->pm.num_power_states == 2) {
521 		/* default */
522 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
523 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
524 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
525 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
526 		/* low sh */
527 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 0;
528 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0;
529 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
530 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
531 		/* mid sh */
532 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0;
533 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 0;
534 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
535 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
536 		/* high sh */
537 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0;
538 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1;
539 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
540 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
541 		/* low mh */
542 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 0;
543 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0;
544 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
545 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
546 		/* mid mh */
547 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0;
548 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0;
549 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
550 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
551 		/* high mh */
552 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0;
553 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 1;
554 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
555 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
556 	} else if (rdev->pm.num_power_states == 3) {
557 		/* default */
558 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
559 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
560 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
561 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
562 		/* low sh */
563 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 1;
564 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1;
565 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
566 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
567 		/* mid sh */
568 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1;
569 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1;
570 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
571 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
572 		/* high sh */
573 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1;
574 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 2;
575 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
576 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
577 		/* low mh */
578 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 1;
579 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 1;
580 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
581 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
582 		/* mid mh */
583 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 1;
584 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 1;
585 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
586 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
587 		/* high mh */
588 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 1;
589 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2;
590 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
591 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
592 	} else {
593 		/* default */
594 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
595 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
596 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
597 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
598 		/* low sh */
599 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 2;
600 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 2;
601 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
602 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
603 		/* mid sh */
604 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 2;
605 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 2;
606 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
607 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
608 		/* high sh */
609 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 2;
610 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 3;
611 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
612 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
613 		/* low mh */
614 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 2;
615 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0;
616 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
617 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
618 		/* mid mh */
619 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2;
620 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0;
621 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
622 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
623 		/* high mh */
624 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2;
625 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 3;
626 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
627 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
628 	}
629 }
630 
631 void r600_pm_init_profile(struct radeon_device *rdev)
632 {
633 	int idx;
634 
635 	if (rdev->family == CHIP_R600) {
636 		/* XXX */
637 		/* default */
638 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
639 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
640 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
641 		rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
642 		/* low sh */
643 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
644 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
645 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
646 		rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
647 		/* mid sh */
648 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
649 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
650 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
651 		rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
652 		/* high sh */
653 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
654 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
655 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
656 		rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
657 		/* low mh */
658 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
659 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
660 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
661 		rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
662 		/* mid mh */
663 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
664 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
665 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
666 		rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
667 		/* high mh */
668 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
669 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
670 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
671 		rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
672 	} else {
673 		if (rdev->pm.num_power_states < 4) {
674 			/* default */
675 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
676 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
677 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
678 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 2;
679 			/* low sh */
680 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 1;
681 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1;
682 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
683 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
684 			/* mid sh */
685 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1;
686 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1;
687 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
688 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1;
689 			/* high sh */
690 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1;
691 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1;
692 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
693 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 2;
694 			/* low mh */
695 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 2;
696 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 2;
697 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
698 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
699 			/* low mh */
700 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2;
701 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 2;
702 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
703 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1;
704 			/* high mh */
705 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2;
706 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2;
707 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
708 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 2;
709 		} else {
710 			/* default */
711 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
712 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
713 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
714 			rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 2;
715 			/* low sh */
716 			if (rdev->flags & RADEON_IS_MOBILITY)
717 				idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 0);
718 			else
719 				idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0);
720 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = idx;
721 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = idx;
722 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
723 			rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
724 			/* mid sh */
725 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = idx;
726 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = idx;
727 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
728 			rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1;
729 			/* high sh */
730 			idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0);
731 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = idx;
732 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = idx;
733 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
734 			rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 2;
735 			/* low mh */
736 			if (rdev->flags & RADEON_IS_MOBILITY)
737 				idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 1);
738 			else
739 				idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1);
740 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = idx;
741 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = idx;
742 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
743 			rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
744 			/* mid mh */
745 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = idx;
746 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = idx;
747 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
748 			rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1;
749 			/* high mh */
750 			idx = radeon_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1);
751 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = idx;
752 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = idx;
753 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
754 			rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 2;
755 		}
756 	}
757 }
758 
759 void r600_pm_misc(struct radeon_device *rdev)
760 {
761 	int req_ps_idx = rdev->pm.requested_power_state_index;
762 	int req_cm_idx = rdev->pm.requested_clock_mode_index;
763 	struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
764 	struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
765 
766 	if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
767 		/* 0xff01 is a flag rather then an actual voltage */
768 		if (voltage->voltage == 0xff01)
769 			return;
770 		if (voltage->voltage != rdev->pm.current_vddc) {
771 			radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC);
772 			rdev->pm.current_vddc = voltage->voltage;
773 			DRM_DEBUG_DRIVER("Setting: v: %d\n", voltage->voltage);
774 		}
775 	}
776 }
777 
778 bool r600_gui_idle(struct radeon_device *rdev)
779 {
780 	if (RREG32(GRBM_STATUS) & GUI_ACTIVE)
781 		return false;
782 	else
783 		return true;
784 }
785 
786 /* hpd for digital panel detect/disconnect */
787 bool r600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
788 {
789 	bool connected = false;
790 
791 	if (ASIC_IS_DCE3(rdev)) {
792 		switch (hpd) {
793 		case RADEON_HPD_1:
794 			if (RREG32(DC_HPD1_INT_STATUS) & DC_HPDx_SENSE)
795 				connected = true;
796 			break;
797 		case RADEON_HPD_2:
798 			if (RREG32(DC_HPD2_INT_STATUS) & DC_HPDx_SENSE)
799 				connected = true;
800 			break;
801 		case RADEON_HPD_3:
802 			if (RREG32(DC_HPD3_INT_STATUS) & DC_HPDx_SENSE)
803 				connected = true;
804 			break;
805 		case RADEON_HPD_4:
806 			if (RREG32(DC_HPD4_INT_STATUS) & DC_HPDx_SENSE)
807 				connected = true;
808 			break;
809 			/* DCE 3.2 */
810 		case RADEON_HPD_5:
811 			if (RREG32(DC_HPD5_INT_STATUS) & DC_HPDx_SENSE)
812 				connected = true;
813 			break;
814 		case RADEON_HPD_6:
815 			if (RREG32(DC_HPD6_INT_STATUS) & DC_HPDx_SENSE)
816 				connected = true;
817 			break;
818 		default:
819 			break;
820 		}
821 	} else {
822 		switch (hpd) {
823 		case RADEON_HPD_1:
824 			if (RREG32(DC_HOT_PLUG_DETECT1_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
825 				connected = true;
826 			break;
827 		case RADEON_HPD_2:
828 			if (RREG32(DC_HOT_PLUG_DETECT2_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
829 				connected = true;
830 			break;
831 		case RADEON_HPD_3:
832 			if (RREG32(DC_HOT_PLUG_DETECT3_INT_STATUS) & DC_HOT_PLUG_DETECTx_SENSE)
833 				connected = true;
834 			break;
835 		default:
836 			break;
837 		}
838 	}
839 	return connected;
840 }
841 
842 void r600_hpd_set_polarity(struct radeon_device *rdev,
843 			   enum radeon_hpd_id hpd)
844 {
845 	u32 tmp;
846 	bool connected = r600_hpd_sense(rdev, hpd);
847 
848 	if (ASIC_IS_DCE3(rdev)) {
849 		switch (hpd) {
850 		case RADEON_HPD_1:
851 			tmp = RREG32(DC_HPD1_INT_CONTROL);
852 			if (connected)
853 				tmp &= ~DC_HPDx_INT_POLARITY;
854 			else
855 				tmp |= DC_HPDx_INT_POLARITY;
856 			WREG32(DC_HPD1_INT_CONTROL, tmp);
857 			break;
858 		case RADEON_HPD_2:
859 			tmp = RREG32(DC_HPD2_INT_CONTROL);
860 			if (connected)
861 				tmp &= ~DC_HPDx_INT_POLARITY;
862 			else
863 				tmp |= DC_HPDx_INT_POLARITY;
864 			WREG32(DC_HPD2_INT_CONTROL, tmp);
865 			break;
866 		case RADEON_HPD_3:
867 			tmp = RREG32(DC_HPD3_INT_CONTROL);
868 			if (connected)
869 				tmp &= ~DC_HPDx_INT_POLARITY;
870 			else
871 				tmp |= DC_HPDx_INT_POLARITY;
872 			WREG32(DC_HPD3_INT_CONTROL, tmp);
873 			break;
874 		case RADEON_HPD_4:
875 			tmp = RREG32(DC_HPD4_INT_CONTROL);
876 			if (connected)
877 				tmp &= ~DC_HPDx_INT_POLARITY;
878 			else
879 				tmp |= DC_HPDx_INT_POLARITY;
880 			WREG32(DC_HPD4_INT_CONTROL, tmp);
881 			break;
882 		case RADEON_HPD_5:
883 			tmp = RREG32(DC_HPD5_INT_CONTROL);
884 			if (connected)
885 				tmp &= ~DC_HPDx_INT_POLARITY;
886 			else
887 				tmp |= DC_HPDx_INT_POLARITY;
888 			WREG32(DC_HPD5_INT_CONTROL, tmp);
889 			break;
890 			/* DCE 3.2 */
891 		case RADEON_HPD_6:
892 			tmp = RREG32(DC_HPD6_INT_CONTROL);
893 			if (connected)
894 				tmp &= ~DC_HPDx_INT_POLARITY;
895 			else
896 				tmp |= DC_HPDx_INT_POLARITY;
897 			WREG32(DC_HPD6_INT_CONTROL, tmp);
898 			break;
899 		default:
900 			break;
901 		}
902 	} else {
903 		switch (hpd) {
904 		case RADEON_HPD_1:
905 			tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
906 			if (connected)
907 				tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
908 			else
909 				tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
910 			WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
911 			break;
912 		case RADEON_HPD_2:
913 			tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
914 			if (connected)
915 				tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
916 			else
917 				tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
918 			WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
919 			break;
920 		case RADEON_HPD_3:
921 			tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
922 			if (connected)
923 				tmp &= ~DC_HOT_PLUG_DETECTx_INT_POLARITY;
924 			else
925 				tmp |= DC_HOT_PLUG_DETECTx_INT_POLARITY;
926 			WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
927 			break;
928 		default:
929 			break;
930 		}
931 	}
932 }
933 
934 void r600_hpd_init(struct radeon_device *rdev)
935 {
936 	struct drm_device *dev = rdev->ddev;
937 	struct drm_connector *connector;
938 	unsigned enable = 0;
939 
940 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
941 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
942 
943 		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
944 		    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
945 			/* don't try to enable hpd on eDP or LVDS avoid breaking the
946 			 * aux dp channel on imac and help (but not completely fix)
947 			 * https://bugzilla.redhat.com/show_bug.cgi?id=726143
948 			 */
949 			continue;
950 		}
951 		if (ASIC_IS_DCE3(rdev)) {
952 			u32 tmp = DC_HPDx_CONNECTION_TIMER(0x9c4) | DC_HPDx_RX_INT_TIMER(0xfa);
953 			if (ASIC_IS_DCE32(rdev))
954 				tmp |= DC_HPDx_EN;
955 
956 			switch (radeon_connector->hpd.hpd) {
957 			case RADEON_HPD_1:
958 				WREG32(DC_HPD1_CONTROL, tmp);
959 				break;
960 			case RADEON_HPD_2:
961 				WREG32(DC_HPD2_CONTROL, tmp);
962 				break;
963 			case RADEON_HPD_3:
964 				WREG32(DC_HPD3_CONTROL, tmp);
965 				break;
966 			case RADEON_HPD_4:
967 				WREG32(DC_HPD4_CONTROL, tmp);
968 				break;
969 				/* DCE 3.2 */
970 			case RADEON_HPD_5:
971 				WREG32(DC_HPD5_CONTROL, tmp);
972 				break;
973 			case RADEON_HPD_6:
974 				WREG32(DC_HPD6_CONTROL, tmp);
975 				break;
976 			default:
977 				break;
978 			}
979 		} else {
980 			switch (radeon_connector->hpd.hpd) {
981 			case RADEON_HPD_1:
982 				WREG32(DC_HOT_PLUG_DETECT1_CONTROL, DC_HOT_PLUG_DETECTx_EN);
983 				break;
984 			case RADEON_HPD_2:
985 				WREG32(DC_HOT_PLUG_DETECT2_CONTROL, DC_HOT_PLUG_DETECTx_EN);
986 				break;
987 			case RADEON_HPD_3:
988 				WREG32(DC_HOT_PLUG_DETECT3_CONTROL, DC_HOT_PLUG_DETECTx_EN);
989 				break;
990 			default:
991 				break;
992 			}
993 		}
994 		if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
995 			enable |= 1 << radeon_connector->hpd.hpd;
996 		radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
997 	}
998 	radeon_irq_kms_enable_hpd(rdev, enable);
999 }
1000 
1001 void r600_hpd_fini(struct radeon_device *rdev)
1002 {
1003 	struct drm_device *dev = rdev->ddev;
1004 	struct drm_connector *connector;
1005 	unsigned disable = 0;
1006 
1007 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1008 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
1009 		if (ASIC_IS_DCE3(rdev)) {
1010 			switch (radeon_connector->hpd.hpd) {
1011 			case RADEON_HPD_1:
1012 				WREG32(DC_HPD1_CONTROL, 0);
1013 				break;
1014 			case RADEON_HPD_2:
1015 				WREG32(DC_HPD2_CONTROL, 0);
1016 				break;
1017 			case RADEON_HPD_3:
1018 				WREG32(DC_HPD3_CONTROL, 0);
1019 				break;
1020 			case RADEON_HPD_4:
1021 				WREG32(DC_HPD4_CONTROL, 0);
1022 				break;
1023 				/* DCE 3.2 */
1024 			case RADEON_HPD_5:
1025 				WREG32(DC_HPD5_CONTROL, 0);
1026 				break;
1027 			case RADEON_HPD_6:
1028 				WREG32(DC_HPD6_CONTROL, 0);
1029 				break;
1030 			default:
1031 				break;
1032 			}
1033 		} else {
1034 			switch (radeon_connector->hpd.hpd) {
1035 			case RADEON_HPD_1:
1036 				WREG32(DC_HOT_PLUG_DETECT1_CONTROL, 0);
1037 				break;
1038 			case RADEON_HPD_2:
1039 				WREG32(DC_HOT_PLUG_DETECT2_CONTROL, 0);
1040 				break;
1041 			case RADEON_HPD_3:
1042 				WREG32(DC_HOT_PLUG_DETECT3_CONTROL, 0);
1043 				break;
1044 			default:
1045 				break;
1046 			}
1047 		}
1048 		if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
1049 			disable |= 1 << radeon_connector->hpd.hpd;
1050 	}
1051 	radeon_irq_kms_disable_hpd(rdev, disable);
1052 }
1053 
1054 /*
1055  * R600 PCIE GART
1056  */
1057 void r600_pcie_gart_tlb_flush(struct radeon_device *rdev)
1058 {
1059 	unsigned i;
1060 	u32 tmp;
1061 
1062 	/* flush hdp cache so updates hit vram */
1063 	if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) &&
1064 	    !(rdev->flags & RADEON_IS_AGP)) {
1065 		void __iomem *ptr = (void *)rdev->gart.ptr;
1066 		u32 tmp;
1067 
1068 		/* r7xx hw bug.  write to HDP_DEBUG1 followed by fb read
1069 		 * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL
1070 		 * This seems to cause problems on some AGP cards. Just use the old
1071 		 * method for them.
1072 		 */
1073 		WREG32(HDP_DEBUG1, 0);
1074 		tmp = readl((void __iomem *)ptr);
1075 	} else
1076 		WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
1077 
1078 	WREG32(VM_CONTEXT0_INVALIDATION_LOW_ADDR, rdev->mc.gtt_start >> 12);
1079 	WREG32(VM_CONTEXT0_INVALIDATION_HIGH_ADDR, (rdev->mc.gtt_end - 1) >> 12);
1080 	WREG32(VM_CONTEXT0_REQUEST_RESPONSE, REQUEST_TYPE(1));
1081 	for (i = 0; i < rdev->usec_timeout; i++) {
1082 		/* read MC_STATUS */
1083 		tmp = RREG32(VM_CONTEXT0_REQUEST_RESPONSE);
1084 		tmp = (tmp & RESPONSE_TYPE_MASK) >> RESPONSE_TYPE_SHIFT;
1085 		if (tmp == 2) {
1086 			pr_warn("[drm] r600 flush TLB failed\n");
1087 			return;
1088 		}
1089 		if (tmp) {
1090 			return;
1091 		}
1092 		udelay(1);
1093 	}
1094 }
1095 
1096 int r600_pcie_gart_init(struct radeon_device *rdev)
1097 {
1098 	int r;
1099 
1100 	if (rdev->gart.robj) {
1101 		WARN(1, "R600 PCIE GART already initialized\n");
1102 		return 0;
1103 	}
1104 	/* Initialize common gart structure */
1105 	r = radeon_gart_init(rdev);
1106 	if (r)
1107 		return r;
1108 	rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
1109 	return radeon_gart_table_vram_alloc(rdev);
1110 }
1111 
1112 static int r600_pcie_gart_enable(struct radeon_device *rdev)
1113 {
1114 	u32 tmp;
1115 	int r, i;
1116 
1117 	if (rdev->gart.robj == NULL) {
1118 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
1119 		return -EINVAL;
1120 	}
1121 	r = radeon_gart_table_vram_pin(rdev);
1122 	if (r)
1123 		return r;
1124 
1125 	/* Setup L2 cache */
1126 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
1127 				ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
1128 				EFFECTIVE_L2_QUEUE_SIZE(7));
1129 	WREG32(VM_L2_CNTL2, 0);
1130 	WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
1131 	/* Setup TLB control */
1132 	tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
1133 		SYSTEM_ACCESS_MODE_NOT_IN_SYS |
1134 		EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
1135 		ENABLE_WAIT_L2_QUERY;
1136 	WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
1137 	WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
1138 	WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
1139 	WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
1140 	WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
1141 	WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
1142 	WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
1143 	WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
1144 	WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
1145 	WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
1146 	WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
1147 	WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
1148 	WREG32(MC_VM_L1_TLB_MCB_RD_UVD_CNTL, tmp);
1149 	WREG32(MC_VM_L1_TLB_MCB_WR_UVD_CNTL, tmp);
1150 	WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1151 	WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1152 	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
1153 	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
1154 	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
1155 	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
1156 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
1157 	WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
1158 			(u32)(rdev->dummy_page.addr >> 12));
1159 	for (i = 1; i < 7; i++)
1160 		WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
1161 
1162 	r600_pcie_gart_tlb_flush(rdev);
1163 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
1164 		 (unsigned)(rdev->mc.gtt_size >> 20),
1165 		 (unsigned long long)rdev->gart.table_addr);
1166 	rdev->gart.ready = true;
1167 	return 0;
1168 }
1169 
1170 static void r600_pcie_gart_disable(struct radeon_device *rdev)
1171 {
1172 	u32 tmp;
1173 	int i;
1174 
1175 	/* Disable all tables */
1176 	for (i = 0; i < 7; i++)
1177 		WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
1178 
1179 	/* Disable L2 cache */
1180 	WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
1181 				EFFECTIVE_L2_QUEUE_SIZE(7));
1182 	WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
1183 	/* Setup L1 TLB control */
1184 	tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
1185 		ENABLE_WAIT_L2_QUERY;
1186 	WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
1187 	WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
1188 	WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
1189 	WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
1190 	WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
1191 	WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
1192 	WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
1193 	WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
1194 	WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp);
1195 	WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp);
1196 	WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
1197 	WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
1198 	WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp);
1199 	WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
1200 	WREG32(MC_VM_L1_TLB_MCB_RD_UVD_CNTL, tmp);
1201 	WREG32(MC_VM_L1_TLB_MCB_WR_UVD_CNTL, tmp);
1202 	radeon_gart_table_vram_unpin(rdev);
1203 }
1204 
1205 static void r600_pcie_gart_fini(struct radeon_device *rdev)
1206 {
1207 	radeon_gart_fini(rdev);
1208 	r600_pcie_gart_disable(rdev);
1209 	radeon_gart_table_vram_free(rdev);
1210 }
1211 
1212 static void r600_agp_enable(struct radeon_device *rdev)
1213 {
1214 	u32 tmp;
1215 	int i;
1216 
1217 	/* Setup L2 cache */
1218 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
1219 				ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
1220 				EFFECTIVE_L2_QUEUE_SIZE(7));
1221 	WREG32(VM_L2_CNTL2, 0);
1222 	WREG32(VM_L2_CNTL3, BANK_SELECT_0(0) | BANK_SELECT_1(1));
1223 	/* Setup TLB control */
1224 	tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
1225 		SYSTEM_ACCESS_MODE_NOT_IN_SYS |
1226 		EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5) |
1227 		ENABLE_WAIT_L2_QUERY;
1228 	WREG32(MC_VM_L1_TLB_MCB_RD_SYS_CNTL, tmp);
1229 	WREG32(MC_VM_L1_TLB_MCB_WR_SYS_CNTL, tmp);
1230 	WREG32(MC_VM_L1_TLB_MCB_RD_HDP_CNTL, tmp | ENABLE_L1_STRICT_ORDERING);
1231 	WREG32(MC_VM_L1_TLB_MCB_WR_HDP_CNTL, tmp);
1232 	WREG32(MC_VM_L1_TLB_MCD_RD_A_CNTL, tmp);
1233 	WREG32(MC_VM_L1_TLB_MCD_WR_A_CNTL, tmp);
1234 	WREG32(MC_VM_L1_TLB_MCD_RD_B_CNTL, tmp);
1235 	WREG32(MC_VM_L1_TLB_MCD_WR_B_CNTL, tmp);
1236 	WREG32(MC_VM_L1_TLB_MCB_RD_GFX_CNTL, tmp);
1237 	WREG32(MC_VM_L1_TLB_MCB_WR_GFX_CNTL, tmp);
1238 	WREG32(MC_VM_L1_TLB_MCB_RD_PDMA_CNTL, tmp);
1239 	WREG32(MC_VM_L1_TLB_MCB_WR_PDMA_CNTL, tmp);
1240 	WREG32(MC_VM_L1_TLB_MCB_RD_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1241 	WREG32(MC_VM_L1_TLB_MCB_WR_SEM_CNTL, tmp | ENABLE_SEMAPHORE_MODE);
1242 	for (i = 0; i < 7; i++)
1243 		WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
1244 }
1245 
1246 int r600_mc_wait_for_idle(struct radeon_device *rdev)
1247 {
1248 	unsigned i;
1249 	u32 tmp;
1250 
1251 	for (i = 0; i < rdev->usec_timeout; i++) {
1252 		/* read MC_STATUS */
1253 		tmp = RREG32(R_000E50_SRBM_STATUS) & 0x3F00;
1254 		if (!tmp)
1255 			return 0;
1256 		udelay(1);
1257 	}
1258 	return -1;
1259 }
1260 
1261 uint32_t rs780_mc_rreg(struct radeon_device *rdev, uint32_t reg)
1262 {
1263 	uint32_t r;
1264 
1265 	lockmgr(&rdev->mc_idx_lock, LK_EXCLUSIVE);
1266 	WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg));
1267 	r = RREG32(R_0028FC_MC_DATA);
1268 	WREG32(R_0028F8_MC_INDEX, ~C_0028F8_MC_IND_ADDR);
1269 	lockmgr(&rdev->mc_idx_lock, LK_RELEASE);
1270 	return r;
1271 }
1272 
1273 void rs780_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
1274 {
1275 	lockmgr(&rdev->mc_idx_lock, LK_EXCLUSIVE);
1276 	WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg) |
1277 		S_0028F8_MC_IND_WR_EN(1));
1278 	WREG32(R_0028FC_MC_DATA, v);
1279 	WREG32(R_0028F8_MC_INDEX, 0x7F);
1280 	lockmgr(&rdev->mc_idx_lock, LK_RELEASE);
1281 }
1282 
1283 static void r600_mc_program(struct radeon_device *rdev)
1284 {
1285 	struct rv515_mc_save save;
1286 	u32 tmp;
1287 	int i, j;
1288 
1289 	/* Initialize HDP */
1290 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
1291 		WREG32((0x2c14 + j), 0x00000000);
1292 		WREG32((0x2c18 + j), 0x00000000);
1293 		WREG32((0x2c1c + j), 0x00000000);
1294 		WREG32((0x2c20 + j), 0x00000000);
1295 		WREG32((0x2c24 + j), 0x00000000);
1296 	}
1297 	WREG32(HDP_REG_COHERENCY_FLUSH_CNTL, 0);
1298 
1299 	rv515_mc_stop(rdev, &save);
1300 	if (r600_mc_wait_for_idle(rdev)) {
1301 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1302 	}
1303 	/* Lockout access through VGA aperture (doesn't exist before R600) */
1304 	WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
1305 	/* Update configuration */
1306 	if (rdev->flags & RADEON_IS_AGP) {
1307 		if (rdev->mc.vram_start < rdev->mc.gtt_start) {
1308 			/* VRAM before AGP */
1309 			WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1310 				rdev->mc.vram_start >> 12);
1311 			WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1312 				rdev->mc.gtt_end >> 12);
1313 		} else {
1314 			/* VRAM after AGP */
1315 			WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
1316 				rdev->mc.gtt_start >> 12);
1317 			WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
1318 				rdev->mc.vram_end >> 12);
1319 		}
1320 	} else {
1321 		WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start >> 12);
1322 		WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end >> 12);
1323 	}
1324 	WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, rdev->vram_scratch.gpu_addr >> 12);
1325 	tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
1326 	tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
1327 	WREG32(MC_VM_FB_LOCATION, tmp);
1328 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
1329 	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
1330 	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
1331 	if (rdev->flags & RADEON_IS_AGP) {
1332 		WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 22);
1333 		WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 22);
1334 		WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
1335 	} else {
1336 		WREG32(MC_VM_AGP_BASE, 0);
1337 		WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
1338 		WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
1339 	}
1340 	if (r600_mc_wait_for_idle(rdev)) {
1341 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1342 	}
1343 	rv515_mc_resume(rdev, &save);
1344 	/* we need to own VRAM, so turn off the VGA renderer here
1345 	 * to stop it overwriting our objects */
1346 	rv515_vga_render_disable(rdev);
1347 }
1348 
1349 /**
1350  * r600_vram_gtt_location - try to find VRAM & GTT location
1351  * @rdev: radeon device structure holding all necessary informations
1352  * @mc: memory controller structure holding memory informations
1353  *
1354  * Function will place try to place VRAM at same place as in CPU (PCI)
1355  * address space as some GPU seems to have issue when we reprogram at
1356  * different address space.
1357  *
1358  * If there is not enough space to fit the unvisible VRAM after the
1359  * aperture then we limit the VRAM size to the aperture.
1360  *
1361  * If we are using AGP then place VRAM adjacent to AGP aperture are we need
1362  * them to be in one from GPU point of view so that we can program GPU to
1363  * catch access outside them (weird GPU policy see ??).
1364  *
1365  * This function will never fails, worst case are limiting VRAM or GTT.
1366  *
1367  * Note: GTT start, end, size should be initialized before calling this
1368  * function on AGP platform.
1369  */
1370 static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
1371 {
1372 	u64 size_bf, size_af;
1373 
1374 	if (mc->mc_vram_size > 0xE0000000) {
1375 		/* leave room for at least 512M GTT */
1376 		dev_warn(rdev->dev, "limiting VRAM\n");
1377 		mc->real_vram_size = 0xE0000000;
1378 		mc->mc_vram_size = 0xE0000000;
1379 	}
1380 	if (rdev->flags & RADEON_IS_AGP) {
1381 		size_bf = mc->gtt_start;
1382 		size_af = mc->mc_mask - mc->gtt_end;
1383 		if (size_bf > size_af) {
1384 			if (mc->mc_vram_size > size_bf) {
1385 				dev_warn(rdev->dev, "limiting VRAM\n");
1386 				mc->real_vram_size = size_bf;
1387 				mc->mc_vram_size = size_bf;
1388 			}
1389 			mc->vram_start = mc->gtt_start - mc->mc_vram_size;
1390 		} else {
1391 			if (mc->mc_vram_size > size_af) {
1392 				dev_warn(rdev->dev, "limiting VRAM\n");
1393 				mc->real_vram_size = size_af;
1394 				mc->mc_vram_size = size_af;
1395 			}
1396 			mc->vram_start = mc->gtt_end + 1;
1397 		}
1398 		mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
1399 		dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",
1400 				mc->mc_vram_size >> 20, mc->vram_start,
1401 				mc->vram_end, mc->real_vram_size >> 20);
1402 	} else {
1403 		u64 base = 0;
1404 		if (rdev->flags & RADEON_IS_IGP) {
1405 			base = RREG32(MC_VM_FB_LOCATION) & 0xFFFF;
1406 			base <<= 24;
1407 		}
1408 		radeon_vram_location(rdev, &rdev->mc, base);
1409 		rdev->mc.gtt_base_align = 0;
1410 		radeon_gtt_location(rdev, mc);
1411 	}
1412 }
1413 
1414 static int r600_mc_init(struct radeon_device *rdev)
1415 {
1416 	u32 tmp;
1417 	int chansize, numchan;
1418 	uint32_t h_addr, l_addr;
1419 	unsigned long long k8_addr;
1420 
1421 	/* Get VRAM informations */
1422 	rdev->mc.vram_is_ddr = true;
1423 	tmp = RREG32(RAMCFG);
1424 	if (tmp & CHANSIZE_OVERRIDE) {
1425 		chansize = 16;
1426 	} else if (tmp & CHANSIZE_MASK) {
1427 		chansize = 64;
1428 	} else {
1429 		chansize = 32;
1430 	}
1431 	tmp = RREG32(CHMAP);
1432 	switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
1433 	case 0:
1434 	default:
1435 		numchan = 1;
1436 		break;
1437 	case 1:
1438 		numchan = 2;
1439 		break;
1440 	case 2:
1441 		numchan = 4;
1442 		break;
1443 	case 3:
1444 		numchan = 8;
1445 		break;
1446 	}
1447 	rdev->mc.vram_width = numchan * chansize;
1448 	/* Could aper size report 0 ? */
1449 	rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
1450 	rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
1451 	/* Setup GPU memory space */
1452 	rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
1453 	rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
1454 	rdev->mc.visible_vram_size = rdev->mc.aper_size;
1455 	r600_vram_gtt_location(rdev, &rdev->mc);
1456 
1457 	if (rdev->flags & RADEON_IS_IGP) {
1458 		rs690_pm_info(rdev);
1459 		rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
1460 
1461 		if (rdev->family == CHIP_RS780 || rdev->family == CHIP_RS880) {
1462 			/* Use K8 direct mapping for fast fb access. */
1463 			rdev->fastfb_working = false;
1464 			h_addr = G_000012_K8_ADDR_EXT(RREG32_MC(R_000012_MC_MISC_UMA_CNTL));
1465 			l_addr = RREG32_MC(R_000011_K8_FB_LOCATION);
1466 			k8_addr = ((unsigned long long)h_addr) << 32 | l_addr;
1467 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
1468 			if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL)
1469 #endif
1470 			{
1471 				/* FastFB shall be used with UMA memory. Here it is simply disabled when sideport
1472 		 		* memory is present.
1473 		 		*/
1474 				if (rdev->mc.igp_sideport_enabled == false && radeon_fastfb == 1) {
1475 					DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n",
1476 						(unsigned long long)rdev->mc.aper_base, k8_addr);
1477 					rdev->mc.aper_base = (resource_size_t)k8_addr;
1478 					rdev->fastfb_working = true;
1479 				}
1480 			}
1481 		}
1482 	}
1483 
1484 	radeon_update_bandwidth_info(rdev);
1485 	return 0;
1486 }
1487 
1488 int r600_vram_scratch_init(struct radeon_device *rdev)
1489 {
1490 	int r;
1491 	void *vram_scratch_ptr_ptr = &rdev->vram_scratch.ptr;
1492 
1493 	if (rdev->vram_scratch.robj == NULL) {
1494 		r = radeon_bo_create(rdev, RADEON_GPU_PAGE_SIZE,
1495 				     PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
1496 				     0, NULL, NULL, &rdev->vram_scratch.robj);
1497 		if (r) {
1498 			return r;
1499 		}
1500 	}
1501 
1502 	r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1503 	if (unlikely(r != 0))
1504 		return r;
1505 	r = radeon_bo_pin(rdev->vram_scratch.robj,
1506 			  RADEON_GEM_DOMAIN_VRAM, &rdev->vram_scratch.gpu_addr);
1507 	if (r) {
1508 		radeon_bo_unreserve(rdev->vram_scratch.robj);
1509 		return r;
1510 	}
1511 	r = radeon_bo_kmap(rdev->vram_scratch.robj,
1512 				vram_scratch_ptr_ptr);
1513 	if (r)
1514 		radeon_bo_unpin(rdev->vram_scratch.robj);
1515 	radeon_bo_unreserve(rdev->vram_scratch.robj);
1516 
1517 	return r;
1518 }
1519 
1520 void r600_vram_scratch_fini(struct radeon_device *rdev)
1521 {
1522 	int r;
1523 
1524 	if (rdev->vram_scratch.robj == NULL) {
1525 		return;
1526 	}
1527 	r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1528 	if (likely(r == 0)) {
1529 		radeon_bo_kunmap(rdev->vram_scratch.robj);
1530 		radeon_bo_unpin(rdev->vram_scratch.robj);
1531 		radeon_bo_unreserve(rdev->vram_scratch.robj);
1532 	}
1533 	radeon_bo_unref(&rdev->vram_scratch.robj);
1534 }
1535 
1536 void r600_set_bios_scratch_engine_hung(struct radeon_device *rdev, bool hung)
1537 {
1538 	u32 tmp = RREG32(R600_BIOS_3_SCRATCH);
1539 
1540 	if (hung)
1541 		tmp |= ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1542 	else
1543 		tmp &= ~ATOM_S3_ASIC_GUI_ENGINE_HUNG;
1544 
1545 	WREG32(R600_BIOS_3_SCRATCH, tmp);
1546 }
1547 
1548 static void r600_print_gpu_status_regs(struct radeon_device *rdev)
1549 {
1550 	dev_info(rdev->dev, "  R_008010_GRBM_STATUS      = 0x%08X\n",
1551 		 RREG32(R_008010_GRBM_STATUS));
1552 	dev_info(rdev->dev, "  R_008014_GRBM_STATUS2     = 0x%08X\n",
1553 		 RREG32(R_008014_GRBM_STATUS2));
1554 	dev_info(rdev->dev, "  R_000E50_SRBM_STATUS      = 0x%08X\n",
1555 		 RREG32(R_000E50_SRBM_STATUS));
1556 	dev_info(rdev->dev, "  R_008674_CP_STALLED_STAT1 = 0x%08X\n",
1557 		 RREG32(CP_STALLED_STAT1));
1558 	dev_info(rdev->dev, "  R_008678_CP_STALLED_STAT2 = 0x%08X\n",
1559 		 RREG32(CP_STALLED_STAT2));
1560 	dev_info(rdev->dev, "  R_00867C_CP_BUSY_STAT     = 0x%08X\n",
1561 		 RREG32(CP_BUSY_STAT));
1562 	dev_info(rdev->dev, "  R_008680_CP_STAT          = 0x%08X\n",
1563 		 RREG32(CP_STAT));
1564 	dev_info(rdev->dev, "  R_00D034_DMA_STATUS_REG   = 0x%08X\n",
1565 		RREG32(DMA_STATUS_REG));
1566 }
1567 
1568 static bool r600_is_display_hung(struct radeon_device *rdev)
1569 {
1570 	u32 crtc_hung = 0;
1571 	u32 crtc_status[2];
1572 	u32 i, j, tmp;
1573 
1574 	for (i = 0; i < rdev->num_crtc; i++) {
1575 		if (RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN) {
1576 			crtc_status[i] = RREG32(AVIVO_D1CRTC_STATUS_HV_COUNT + crtc_offsets[i]);
1577 			crtc_hung |= (1 << i);
1578 		}
1579 	}
1580 
1581 	for (j = 0; j < 10; j++) {
1582 		for (i = 0; i < rdev->num_crtc; i++) {
1583 			if (crtc_hung & (1 << i)) {
1584 				tmp = RREG32(AVIVO_D1CRTC_STATUS_HV_COUNT + crtc_offsets[i]);
1585 				if (tmp != crtc_status[i])
1586 					crtc_hung &= ~(1 << i);
1587 			}
1588 		}
1589 		if (crtc_hung == 0)
1590 			return false;
1591 		udelay(100);
1592 	}
1593 
1594 	return true;
1595 }
1596 
1597 u32 r600_gpu_check_soft_reset(struct radeon_device *rdev)
1598 {
1599 	u32 reset_mask = 0;
1600 	u32 tmp;
1601 
1602 	/* GRBM_STATUS */
1603 	tmp = RREG32(R_008010_GRBM_STATUS);
1604 	if (rdev->family >= CHIP_RV770) {
1605 		if (G_008010_PA_BUSY(tmp) | G_008010_SC_BUSY(tmp) |
1606 		    G_008010_SH_BUSY(tmp) | G_008010_SX_BUSY(tmp) |
1607 		    G_008010_TA_BUSY(tmp) | G_008010_VGT_BUSY(tmp) |
1608 		    G_008010_DB03_BUSY(tmp) | G_008010_CB03_BUSY(tmp) |
1609 		    G_008010_SPI03_BUSY(tmp) | G_008010_VGT_BUSY_NO_DMA(tmp))
1610 			reset_mask |= RADEON_RESET_GFX;
1611 	} else {
1612 		if (G_008010_PA_BUSY(tmp) | G_008010_SC_BUSY(tmp) |
1613 		    G_008010_SH_BUSY(tmp) | G_008010_SX_BUSY(tmp) |
1614 		    G_008010_TA03_BUSY(tmp) | G_008010_VGT_BUSY(tmp) |
1615 		    G_008010_DB03_BUSY(tmp) | G_008010_CB03_BUSY(tmp) |
1616 		    G_008010_SPI03_BUSY(tmp) | G_008010_VGT_BUSY_NO_DMA(tmp))
1617 			reset_mask |= RADEON_RESET_GFX;
1618 	}
1619 
1620 	if (G_008010_CF_RQ_PENDING(tmp) | G_008010_PF_RQ_PENDING(tmp) |
1621 	    G_008010_CP_BUSY(tmp) | G_008010_CP_COHERENCY_BUSY(tmp))
1622 		reset_mask |= RADEON_RESET_CP;
1623 
1624 	if (G_008010_GRBM_EE_BUSY(tmp))
1625 		reset_mask |= RADEON_RESET_GRBM | RADEON_RESET_GFX | RADEON_RESET_CP;
1626 
1627 	/* DMA_STATUS_REG */
1628 	tmp = RREG32(DMA_STATUS_REG);
1629 	if (!(tmp & DMA_IDLE))
1630 		reset_mask |= RADEON_RESET_DMA;
1631 
1632 	/* SRBM_STATUS */
1633 	tmp = RREG32(R_000E50_SRBM_STATUS);
1634 	if (G_000E50_RLC_RQ_PENDING(tmp) | G_000E50_RLC_BUSY(tmp))
1635 		reset_mask |= RADEON_RESET_RLC;
1636 
1637 	if (G_000E50_IH_BUSY(tmp))
1638 		reset_mask |= RADEON_RESET_IH;
1639 
1640 	if (G_000E50_SEM_BUSY(tmp))
1641 		reset_mask |= RADEON_RESET_SEM;
1642 
1643 	if (G_000E50_GRBM_RQ_PENDING(tmp))
1644 		reset_mask |= RADEON_RESET_GRBM;
1645 
1646 	if (G_000E50_VMC_BUSY(tmp))
1647 		reset_mask |= RADEON_RESET_VMC;
1648 
1649 	if (G_000E50_MCB_BUSY(tmp) | G_000E50_MCDZ_BUSY(tmp) |
1650 	    G_000E50_MCDY_BUSY(tmp) | G_000E50_MCDX_BUSY(tmp) |
1651 	    G_000E50_MCDW_BUSY(tmp))
1652 		reset_mask |= RADEON_RESET_MC;
1653 
1654 	if (r600_is_display_hung(rdev))
1655 		reset_mask |= RADEON_RESET_DISPLAY;
1656 
1657 	/* Skip MC reset as it's mostly likely not hung, just busy */
1658 	if (reset_mask & RADEON_RESET_MC) {
1659 		DRM_DEBUG("MC busy: 0x%08X, clearing.\n", reset_mask);
1660 		reset_mask &= ~RADEON_RESET_MC;
1661 	}
1662 
1663 	return reset_mask;
1664 }
1665 
1666 static void r600_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
1667 {
1668 	struct rv515_mc_save save;
1669 	u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
1670 	u32 tmp;
1671 
1672 	if (reset_mask == 0)
1673 		return;
1674 
1675 	dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
1676 
1677 	r600_print_gpu_status_regs(rdev);
1678 
1679 	/* Disable CP parsing/prefetching */
1680 	if (rdev->family >= CHIP_RV770)
1681 		WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1) | S_0086D8_CP_PFP_HALT(1));
1682 	else
1683 		WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
1684 
1685 	/* disable the RLC */
1686 	WREG32(RLC_CNTL, 0);
1687 
1688 	if (reset_mask & RADEON_RESET_DMA) {
1689 		/* Disable DMA */
1690 		tmp = RREG32(DMA_RB_CNTL);
1691 		tmp &= ~DMA_RB_ENABLE;
1692 		WREG32(DMA_RB_CNTL, tmp);
1693 	}
1694 
1695 	mdelay(50);
1696 
1697 	rv515_mc_stop(rdev, &save);
1698 	if (r600_mc_wait_for_idle(rdev)) {
1699 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1700 	}
1701 
1702 	if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) {
1703 		if (rdev->family >= CHIP_RV770)
1704 			grbm_soft_reset |= S_008020_SOFT_RESET_DB(1) |
1705 				S_008020_SOFT_RESET_CB(1) |
1706 				S_008020_SOFT_RESET_PA(1) |
1707 				S_008020_SOFT_RESET_SC(1) |
1708 				S_008020_SOFT_RESET_SPI(1) |
1709 				S_008020_SOFT_RESET_SX(1) |
1710 				S_008020_SOFT_RESET_SH(1) |
1711 				S_008020_SOFT_RESET_TC(1) |
1712 				S_008020_SOFT_RESET_TA(1) |
1713 				S_008020_SOFT_RESET_VC(1) |
1714 				S_008020_SOFT_RESET_VGT(1);
1715 		else
1716 			grbm_soft_reset |= S_008020_SOFT_RESET_CR(1) |
1717 				S_008020_SOFT_RESET_DB(1) |
1718 				S_008020_SOFT_RESET_CB(1) |
1719 				S_008020_SOFT_RESET_PA(1) |
1720 				S_008020_SOFT_RESET_SC(1) |
1721 				S_008020_SOFT_RESET_SMX(1) |
1722 				S_008020_SOFT_RESET_SPI(1) |
1723 				S_008020_SOFT_RESET_SX(1) |
1724 				S_008020_SOFT_RESET_SH(1) |
1725 				S_008020_SOFT_RESET_TC(1) |
1726 				S_008020_SOFT_RESET_TA(1) |
1727 				S_008020_SOFT_RESET_VC(1) |
1728 				S_008020_SOFT_RESET_VGT(1);
1729 	}
1730 
1731 	if (reset_mask & RADEON_RESET_CP) {
1732 		grbm_soft_reset |= S_008020_SOFT_RESET_CP(1) |
1733 			S_008020_SOFT_RESET_VGT(1);
1734 
1735 		srbm_soft_reset |= S_000E60_SOFT_RESET_GRBM(1);
1736 	}
1737 
1738 	if (reset_mask & RADEON_RESET_DMA) {
1739 		if (rdev->family >= CHIP_RV770)
1740 			srbm_soft_reset |= RV770_SOFT_RESET_DMA;
1741 		else
1742 			srbm_soft_reset |= SOFT_RESET_DMA;
1743 	}
1744 
1745 	if (reset_mask & RADEON_RESET_RLC)
1746 		srbm_soft_reset |= S_000E60_SOFT_RESET_RLC(1);
1747 
1748 	if (reset_mask & RADEON_RESET_SEM)
1749 		srbm_soft_reset |= S_000E60_SOFT_RESET_SEM(1);
1750 
1751 	if (reset_mask & RADEON_RESET_IH)
1752 		srbm_soft_reset |= S_000E60_SOFT_RESET_IH(1);
1753 
1754 	if (reset_mask & RADEON_RESET_GRBM)
1755 		srbm_soft_reset |= S_000E60_SOFT_RESET_GRBM(1);
1756 
1757 	if (!(rdev->flags & RADEON_IS_IGP)) {
1758 		if (reset_mask & RADEON_RESET_MC)
1759 			srbm_soft_reset |= S_000E60_SOFT_RESET_MC(1);
1760 	}
1761 
1762 	if (reset_mask & RADEON_RESET_VMC)
1763 		srbm_soft_reset |= S_000E60_SOFT_RESET_VMC(1);
1764 
1765 	if (grbm_soft_reset) {
1766 		tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1767 		tmp |= grbm_soft_reset;
1768 		dev_info(rdev->dev, "R_008020_GRBM_SOFT_RESET=0x%08X\n", tmp);
1769 		WREG32(R_008020_GRBM_SOFT_RESET, tmp);
1770 		tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1771 
1772 		udelay(50);
1773 
1774 		tmp &= ~grbm_soft_reset;
1775 		WREG32(R_008020_GRBM_SOFT_RESET, tmp);
1776 		tmp = RREG32(R_008020_GRBM_SOFT_RESET);
1777 	}
1778 
1779 	if (srbm_soft_reset) {
1780 		tmp = RREG32(SRBM_SOFT_RESET);
1781 		tmp |= srbm_soft_reset;
1782 		dev_info(rdev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1783 		WREG32(SRBM_SOFT_RESET, tmp);
1784 		tmp = RREG32(SRBM_SOFT_RESET);
1785 
1786 		udelay(50);
1787 
1788 		tmp &= ~srbm_soft_reset;
1789 		WREG32(SRBM_SOFT_RESET, tmp);
1790 		tmp = RREG32(SRBM_SOFT_RESET);
1791 	}
1792 
1793 	/* Wait a little for things to settle down */
1794 	mdelay(1);
1795 
1796 	rv515_mc_resume(rdev, &save);
1797 	udelay(50);
1798 
1799 	r600_print_gpu_status_regs(rdev);
1800 }
1801 
1802 static void r600_gpu_pci_config_reset(struct radeon_device *rdev)
1803 {
1804 	struct rv515_mc_save save;
1805 	u32 tmp, i;
1806 
1807 	dev_info(rdev->dev, "GPU pci config reset\n");
1808 
1809 	/* disable dpm? */
1810 
1811 	/* Disable CP parsing/prefetching */
1812 	if (rdev->family >= CHIP_RV770)
1813 		WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1) | S_0086D8_CP_PFP_HALT(1));
1814 	else
1815 		WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
1816 
1817 	/* disable the RLC */
1818 	WREG32(RLC_CNTL, 0);
1819 
1820 	/* Disable DMA */
1821 	tmp = RREG32(DMA_RB_CNTL);
1822 	tmp &= ~DMA_RB_ENABLE;
1823 	WREG32(DMA_RB_CNTL, tmp);
1824 
1825 	mdelay(50);
1826 
1827 	/* set mclk/sclk to bypass */
1828 	if (rdev->family >= CHIP_RV770)
1829 		rv770_set_clk_bypass_mode(rdev);
1830 	/* disable BM */
1831 	pci_clear_master(rdev->pdev);
1832 	/* disable mem access */
1833 	rv515_mc_stop(rdev, &save);
1834 	if (r600_mc_wait_for_idle(rdev)) {
1835 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1836 	}
1837 
1838 	/* BIF reset workaround.  Not sure if this is needed on 6xx */
1839 	tmp = RREG32(BUS_CNTL);
1840 	tmp |= VGA_COHE_SPEC_TIMER_DIS;
1841 	WREG32(BUS_CNTL, tmp);
1842 
1843 	tmp = RREG32(BIF_SCRATCH0);
1844 
1845 	/* reset */
1846 	radeon_pci_config_reset(rdev);
1847 	mdelay(1);
1848 
1849 	/* BIF reset workaround.  Not sure if this is needed on 6xx */
1850 	tmp = SOFT_RESET_BIF;
1851 	WREG32(SRBM_SOFT_RESET, tmp);
1852 	mdelay(1);
1853 	WREG32(SRBM_SOFT_RESET, 0);
1854 
1855 	/* wait for asic to come out of reset */
1856 	for (i = 0; i < rdev->usec_timeout; i++) {
1857 		if (RREG32(CONFIG_MEMSIZE) != 0xffffffff)
1858 			break;
1859 		udelay(1);
1860 	}
1861 }
1862 
1863 int r600_asic_reset(struct radeon_device *rdev, bool hard)
1864 {
1865 	u32 reset_mask;
1866 
1867 	if (hard) {
1868 		r600_gpu_pci_config_reset(rdev);
1869 		return 0;
1870 	}
1871 
1872 	reset_mask = r600_gpu_check_soft_reset(rdev);
1873 
1874 	if (reset_mask)
1875 		r600_set_bios_scratch_engine_hung(rdev, true);
1876 
1877 	/* try soft reset */
1878 	r600_gpu_soft_reset(rdev, reset_mask);
1879 
1880 	reset_mask = r600_gpu_check_soft_reset(rdev);
1881 
1882 	/* try pci config reset */
1883 	if (reset_mask && radeon_hard_reset)
1884 		r600_gpu_pci_config_reset(rdev);
1885 
1886 	reset_mask = r600_gpu_check_soft_reset(rdev);
1887 
1888 	if (!reset_mask)
1889 		r600_set_bios_scratch_engine_hung(rdev, false);
1890 
1891 	return 0;
1892 }
1893 
1894 /**
1895  * r600_gfx_is_lockup - Check if the GFX engine is locked up
1896  *
1897  * @rdev: radeon_device pointer
1898  * @ring: radeon_ring structure holding ring information
1899  *
1900  * Check if the GFX engine is locked up.
1901  * Returns true if the engine appears to be locked up, false if not.
1902  */
1903 bool r600_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
1904 {
1905 	u32 reset_mask = r600_gpu_check_soft_reset(rdev);
1906 
1907 	if (!(reset_mask & (RADEON_RESET_GFX |
1908 			    RADEON_RESET_COMPUTE |
1909 			    RADEON_RESET_CP))) {
1910 		radeon_ring_lockup_update(rdev, ring);
1911 		return false;
1912 	}
1913 	return radeon_ring_test_lockup(rdev, ring);
1914 }
1915 
1916 u32 r6xx_remap_render_backend(struct radeon_device *rdev,
1917 			      u32 tiling_pipe_num,
1918 			      u32 max_rb_num,
1919 			      u32 total_max_rb_num,
1920 			      u32 disabled_rb_mask)
1921 {
1922 	u32 rendering_pipe_num, rb_num_width, req_rb_num;
1923 	u32 pipe_rb_ratio, pipe_rb_remain, tmp;
1924 	u32 data = 0, mask = 1 << (max_rb_num - 1);
1925 	unsigned i, j;
1926 
1927 	/* mask out the RBs that don't exist on that asic */
1928 	tmp = disabled_rb_mask | ((0xff << max_rb_num) & 0xff);
1929 	/* make sure at least one RB is available */
1930 	if ((tmp & 0xff) != 0xff)
1931 		disabled_rb_mask = tmp;
1932 
1933 	rendering_pipe_num = 1 << tiling_pipe_num;
1934 	req_rb_num = total_max_rb_num - r600_count_pipe_bits(disabled_rb_mask);
1935 	BUG_ON(rendering_pipe_num < req_rb_num);
1936 
1937 	pipe_rb_ratio = rendering_pipe_num / req_rb_num;
1938 	pipe_rb_remain = rendering_pipe_num - pipe_rb_ratio * req_rb_num;
1939 
1940 	if (rdev->family <= CHIP_RV740) {
1941 		/* r6xx/r7xx */
1942 		rb_num_width = 2;
1943 	} else {
1944 		/* eg+ */
1945 		rb_num_width = 4;
1946 	}
1947 
1948 	for (i = 0; i < max_rb_num; i++) {
1949 		if (!(mask & disabled_rb_mask)) {
1950 			for (j = 0; j < pipe_rb_ratio; j++) {
1951 				data <<= rb_num_width;
1952 				data |= max_rb_num - i - 1;
1953 			}
1954 			if (pipe_rb_remain) {
1955 				data <<= rb_num_width;
1956 				data |= max_rb_num - i - 1;
1957 				pipe_rb_remain--;
1958 			}
1959 		}
1960 		mask >>= 1;
1961 	}
1962 
1963 	return data;
1964 }
1965 
1966 int r600_count_pipe_bits(uint32_t val)
1967 {
1968 	return hweight32(val);
1969 }
1970 
1971 static void r600_gpu_init(struct radeon_device *rdev)
1972 {
1973 	u32 tiling_config;
1974 	u32 ramcfg;
1975 	u32 cc_gc_shader_pipe_config;
1976 	u32 tmp;
1977 	int i, j;
1978 	u32 sq_config;
1979 	u32 sq_gpr_resource_mgmt_1 = 0;
1980 	u32 sq_gpr_resource_mgmt_2 = 0;
1981 	u32 sq_thread_resource_mgmt = 0;
1982 	u32 sq_stack_resource_mgmt_1 = 0;
1983 	u32 sq_stack_resource_mgmt_2 = 0;
1984 	u32 disabled_rb_mask;
1985 
1986 	rdev->config.r600.tiling_group_size = 256;
1987 	switch (rdev->family) {
1988 	case CHIP_R600:
1989 		rdev->config.r600.max_pipes = 4;
1990 		rdev->config.r600.max_tile_pipes = 8;
1991 		rdev->config.r600.max_simds = 4;
1992 		rdev->config.r600.max_backends = 4;
1993 		rdev->config.r600.max_gprs = 256;
1994 		rdev->config.r600.max_threads = 192;
1995 		rdev->config.r600.max_stack_entries = 256;
1996 		rdev->config.r600.max_hw_contexts = 8;
1997 		rdev->config.r600.max_gs_threads = 16;
1998 		rdev->config.r600.sx_max_export_size = 128;
1999 		rdev->config.r600.sx_max_export_pos_size = 16;
2000 		rdev->config.r600.sx_max_export_smx_size = 128;
2001 		rdev->config.r600.sq_num_cf_insts = 2;
2002 		break;
2003 	case CHIP_RV630:
2004 	case CHIP_RV635:
2005 		rdev->config.r600.max_pipes = 2;
2006 		rdev->config.r600.max_tile_pipes = 2;
2007 		rdev->config.r600.max_simds = 3;
2008 		rdev->config.r600.max_backends = 1;
2009 		rdev->config.r600.max_gprs = 128;
2010 		rdev->config.r600.max_threads = 192;
2011 		rdev->config.r600.max_stack_entries = 128;
2012 		rdev->config.r600.max_hw_contexts = 8;
2013 		rdev->config.r600.max_gs_threads = 4;
2014 		rdev->config.r600.sx_max_export_size = 128;
2015 		rdev->config.r600.sx_max_export_pos_size = 16;
2016 		rdev->config.r600.sx_max_export_smx_size = 128;
2017 		rdev->config.r600.sq_num_cf_insts = 2;
2018 		break;
2019 	case CHIP_RV610:
2020 	case CHIP_RV620:
2021 	case CHIP_RS780:
2022 	case CHIP_RS880:
2023 		rdev->config.r600.max_pipes = 1;
2024 		rdev->config.r600.max_tile_pipes = 1;
2025 		rdev->config.r600.max_simds = 2;
2026 		rdev->config.r600.max_backends = 1;
2027 		rdev->config.r600.max_gprs = 128;
2028 		rdev->config.r600.max_threads = 192;
2029 		rdev->config.r600.max_stack_entries = 128;
2030 		rdev->config.r600.max_hw_contexts = 4;
2031 		rdev->config.r600.max_gs_threads = 4;
2032 		rdev->config.r600.sx_max_export_size = 128;
2033 		rdev->config.r600.sx_max_export_pos_size = 16;
2034 		rdev->config.r600.sx_max_export_smx_size = 128;
2035 		rdev->config.r600.sq_num_cf_insts = 1;
2036 		break;
2037 	case CHIP_RV670:
2038 		rdev->config.r600.max_pipes = 4;
2039 		rdev->config.r600.max_tile_pipes = 4;
2040 		rdev->config.r600.max_simds = 4;
2041 		rdev->config.r600.max_backends = 4;
2042 		rdev->config.r600.max_gprs = 192;
2043 		rdev->config.r600.max_threads = 192;
2044 		rdev->config.r600.max_stack_entries = 256;
2045 		rdev->config.r600.max_hw_contexts = 8;
2046 		rdev->config.r600.max_gs_threads = 16;
2047 		rdev->config.r600.sx_max_export_size = 128;
2048 		rdev->config.r600.sx_max_export_pos_size = 16;
2049 		rdev->config.r600.sx_max_export_smx_size = 128;
2050 		rdev->config.r600.sq_num_cf_insts = 2;
2051 		break;
2052 	default:
2053 		break;
2054 	}
2055 
2056 	/* Initialize HDP */
2057 	for (i = 0, j = 0; i < 32; i++, j += 0x18) {
2058 		WREG32((0x2c14 + j), 0x00000000);
2059 		WREG32((0x2c18 + j), 0x00000000);
2060 		WREG32((0x2c1c + j), 0x00000000);
2061 		WREG32((0x2c20 + j), 0x00000000);
2062 		WREG32((0x2c24 + j), 0x00000000);
2063 	}
2064 
2065 	WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
2066 
2067 	/* Setup tiling */
2068 	tiling_config = 0;
2069 	ramcfg = RREG32(RAMCFG);
2070 	switch (rdev->config.r600.max_tile_pipes) {
2071 	case 1:
2072 		tiling_config |= PIPE_TILING(0);
2073 		break;
2074 	case 2:
2075 		tiling_config |= PIPE_TILING(1);
2076 		break;
2077 	case 4:
2078 		tiling_config |= PIPE_TILING(2);
2079 		break;
2080 	case 8:
2081 		tiling_config |= PIPE_TILING(3);
2082 		break;
2083 	default:
2084 		break;
2085 	}
2086 	rdev->config.r600.tiling_npipes = rdev->config.r600.max_tile_pipes;
2087 	rdev->config.r600.tiling_nbanks = 4 << ((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
2088 	tiling_config |= BANK_TILING((ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
2089 	tiling_config |= GROUP_SIZE((ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
2090 
2091 	tmp = (ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
2092 	if (tmp > 3) {
2093 		tiling_config |= ROW_TILING(3);
2094 		tiling_config |= SAMPLE_SPLIT(3);
2095 	} else {
2096 		tiling_config |= ROW_TILING(tmp);
2097 		tiling_config |= SAMPLE_SPLIT(tmp);
2098 	}
2099 	tiling_config |= BANK_SWAPS(1);
2100 
2101 	cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & 0x00ffff00;
2102 	tmp = rdev->config.r600.max_simds -
2103 		r600_count_pipe_bits((cc_gc_shader_pipe_config >> 16) & R6XX_MAX_SIMDS_MASK);
2104 	rdev->config.r600.active_simds = tmp;
2105 
2106 	disabled_rb_mask = (RREG32(CC_RB_BACKEND_DISABLE) >> 16) & R6XX_MAX_BACKENDS_MASK;
2107 	tmp = 0;
2108 	for (i = 0; i < rdev->config.r600.max_backends; i++)
2109 		tmp |= (1 << i);
2110 	/* if all the backends are disabled, fix it up here */
2111 	if ((disabled_rb_mask & tmp) == tmp) {
2112 		for (i = 0; i < rdev->config.r600.max_backends; i++)
2113 			disabled_rb_mask &= ~(1 << i);
2114 	}
2115 	tmp = (tiling_config & PIPE_TILING__MASK) >> PIPE_TILING__SHIFT;
2116 	tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.r600.max_backends,
2117 					R6XX_MAX_BACKENDS, disabled_rb_mask);
2118 	tiling_config |= tmp << 16;
2119 	rdev->config.r600.backend_map = tmp;
2120 
2121 	rdev->config.r600.tile_config = tiling_config;
2122 	WREG32(GB_TILING_CONFIG, tiling_config);
2123 	WREG32(DCP_TILING_CONFIG, tiling_config & 0xffff);
2124 	WREG32(HDP_TILING_CONFIG, tiling_config & 0xffff);
2125 	WREG32(DMA_TILING_CONFIG, tiling_config & 0xffff);
2126 
2127 	tmp = R6XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> 8);
2128 	WREG32(VGT_OUT_DEALLOC_CNTL, (tmp * 4) & DEALLOC_DIST_MASK);
2129 	WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((tmp * 4) - 2) & VTX_REUSE_DEPTH_MASK);
2130 
2131 	/* Setup some CP states */
2132 	WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) | ROQ_IB2_START(0x2b)));
2133 	WREG32(CP_MEQ_THRESHOLDS, (MEQ_END(0x40) | ROQ_END(0x40)));
2134 
2135 	WREG32(TA_CNTL_AUX, (DISABLE_CUBE_ANISO | SYNC_GRADIENT |
2136 			     SYNC_WALKER | SYNC_ALIGNER));
2137 	/* Setup various GPU states */
2138 	if (rdev->family == CHIP_RV670)
2139 		WREG32(ARB_GDEC_RD_CNTL, 0x00000021);
2140 
2141 	tmp = RREG32(SX_DEBUG_1);
2142 	tmp |= SMX_EVENT_RELEASE;
2143 	if ((rdev->family > CHIP_R600))
2144 		tmp |= ENABLE_NEW_SMX_ADDRESS;
2145 	WREG32(SX_DEBUG_1, tmp);
2146 
2147 	if (((rdev->family) == CHIP_R600) ||
2148 	    ((rdev->family) == CHIP_RV630) ||
2149 	    ((rdev->family) == CHIP_RV610) ||
2150 	    ((rdev->family) == CHIP_RV620) ||
2151 	    ((rdev->family) == CHIP_RS780) ||
2152 	    ((rdev->family) == CHIP_RS880)) {
2153 		WREG32(DB_DEBUG, PREZ_MUST_WAIT_FOR_POSTZ_DONE);
2154 	} else {
2155 		WREG32(DB_DEBUG, 0);
2156 	}
2157 	WREG32(DB_WATERMARKS, (DEPTH_FREE(4) | DEPTH_CACHELINE_FREE(16) |
2158 			       DEPTH_FLUSH(16) | DEPTH_PENDING_FREE(4)));
2159 
2160 	WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
2161 	WREG32(VGT_NUM_INSTANCES, 0);
2162 
2163 	WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
2164 	WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(0));
2165 
2166 	tmp = RREG32(SQ_MS_FIFO_SIZES);
2167 	if (((rdev->family) == CHIP_RV610) ||
2168 	    ((rdev->family) == CHIP_RV620) ||
2169 	    ((rdev->family) == CHIP_RS780) ||
2170 	    ((rdev->family) == CHIP_RS880)) {
2171 		tmp = (CACHE_FIFO_SIZE(0xa) |
2172 		       FETCH_FIFO_HIWATER(0xa) |
2173 		       DONE_FIFO_HIWATER(0xe0) |
2174 		       ALU_UPDATE_FIFO_HIWATER(0x8));
2175 	} else if (((rdev->family) == CHIP_R600) ||
2176 		   ((rdev->family) == CHIP_RV630)) {
2177 		tmp &= ~DONE_FIFO_HIWATER(0xff);
2178 		tmp |= DONE_FIFO_HIWATER(0x4);
2179 	}
2180 	WREG32(SQ_MS_FIFO_SIZES, tmp);
2181 
2182 	/* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
2183 	 * should be adjusted as needed by the 2D/3D drivers.  This just sets default values
2184 	 */
2185 	sq_config = RREG32(SQ_CONFIG);
2186 	sq_config &= ~(PS_PRIO(3) |
2187 		       VS_PRIO(3) |
2188 		       GS_PRIO(3) |
2189 		       ES_PRIO(3));
2190 	sq_config |= (DX9_CONSTS |
2191 		      VC_ENABLE |
2192 		      PS_PRIO(0) |
2193 		      VS_PRIO(1) |
2194 		      GS_PRIO(2) |
2195 		      ES_PRIO(3));
2196 
2197 	if ((rdev->family) == CHIP_R600) {
2198 		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(124) |
2199 					  NUM_VS_GPRS(124) |
2200 					  NUM_CLAUSE_TEMP_GPRS(4));
2201 		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(0) |
2202 					  NUM_ES_GPRS(0));
2203 		sq_thread_resource_mgmt = (NUM_PS_THREADS(136) |
2204 					   NUM_VS_THREADS(48) |
2205 					   NUM_GS_THREADS(4) |
2206 					   NUM_ES_THREADS(4));
2207 		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(128) |
2208 					    NUM_VS_STACK_ENTRIES(128));
2209 		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(0) |
2210 					    NUM_ES_STACK_ENTRIES(0));
2211 	} else if (((rdev->family) == CHIP_RV610) ||
2212 		   ((rdev->family) == CHIP_RV620) ||
2213 		   ((rdev->family) == CHIP_RS780) ||
2214 		   ((rdev->family) == CHIP_RS880)) {
2215 		/* no vertex cache */
2216 		sq_config &= ~VC_ENABLE;
2217 
2218 		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
2219 					  NUM_VS_GPRS(44) |
2220 					  NUM_CLAUSE_TEMP_GPRS(2));
2221 		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
2222 					  NUM_ES_GPRS(17));
2223 		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
2224 					   NUM_VS_THREADS(78) |
2225 					   NUM_GS_THREADS(4) |
2226 					   NUM_ES_THREADS(31));
2227 		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
2228 					    NUM_VS_STACK_ENTRIES(40));
2229 		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
2230 					    NUM_ES_STACK_ENTRIES(16));
2231 	} else if (((rdev->family) == CHIP_RV630) ||
2232 		   ((rdev->family) == CHIP_RV635)) {
2233 		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
2234 					  NUM_VS_GPRS(44) |
2235 					  NUM_CLAUSE_TEMP_GPRS(2));
2236 		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(18) |
2237 					  NUM_ES_GPRS(18));
2238 		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
2239 					   NUM_VS_THREADS(78) |
2240 					   NUM_GS_THREADS(4) |
2241 					   NUM_ES_THREADS(31));
2242 		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(40) |
2243 					    NUM_VS_STACK_ENTRIES(40));
2244 		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(32) |
2245 					    NUM_ES_STACK_ENTRIES(16));
2246 	} else if ((rdev->family) == CHIP_RV670) {
2247 		sq_gpr_resource_mgmt_1 = (NUM_PS_GPRS(44) |
2248 					  NUM_VS_GPRS(44) |
2249 					  NUM_CLAUSE_TEMP_GPRS(2));
2250 		sq_gpr_resource_mgmt_2 = (NUM_GS_GPRS(17) |
2251 					  NUM_ES_GPRS(17));
2252 		sq_thread_resource_mgmt = (NUM_PS_THREADS(79) |
2253 					   NUM_VS_THREADS(78) |
2254 					   NUM_GS_THREADS(4) |
2255 					   NUM_ES_THREADS(31));
2256 		sq_stack_resource_mgmt_1 = (NUM_PS_STACK_ENTRIES(64) |
2257 					    NUM_VS_STACK_ENTRIES(64));
2258 		sq_stack_resource_mgmt_2 = (NUM_GS_STACK_ENTRIES(64) |
2259 					    NUM_ES_STACK_ENTRIES(64));
2260 	}
2261 
2262 	WREG32(SQ_CONFIG, sq_config);
2263 	WREG32(SQ_GPR_RESOURCE_MGMT_1,  sq_gpr_resource_mgmt_1);
2264 	WREG32(SQ_GPR_RESOURCE_MGMT_2,  sq_gpr_resource_mgmt_2);
2265 	WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
2266 	WREG32(SQ_STACK_RESOURCE_MGMT_1, sq_stack_resource_mgmt_1);
2267 	WREG32(SQ_STACK_RESOURCE_MGMT_2, sq_stack_resource_mgmt_2);
2268 
2269 	if (((rdev->family) == CHIP_RV610) ||
2270 	    ((rdev->family) == CHIP_RV620) ||
2271 	    ((rdev->family) == CHIP_RS780) ||
2272 	    ((rdev->family) == CHIP_RS880)) {
2273 		WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(TC_ONLY));
2274 	} else {
2275 		WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC));
2276 	}
2277 
2278 	/* More default values. 2D/3D driver should adjust as needed */
2279 	WREG32(PA_SC_AA_SAMPLE_LOCS_2S, (S0_X(0xc) | S0_Y(0x4) |
2280 					 S1_X(0x4) | S1_Y(0xc)));
2281 	WREG32(PA_SC_AA_SAMPLE_LOCS_4S, (S0_X(0xe) | S0_Y(0xe) |
2282 					 S1_X(0x2) | S1_Y(0x2) |
2283 					 S2_X(0xa) | S2_Y(0x6) |
2284 					 S3_X(0x6) | S3_Y(0xa)));
2285 	WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD0, (S0_X(0xe) | S0_Y(0xb) |
2286 					     S1_X(0x4) | S1_Y(0xc) |
2287 					     S2_X(0x1) | S2_Y(0x6) |
2288 					     S3_X(0xa) | S3_Y(0xe)));
2289 	WREG32(PA_SC_AA_SAMPLE_LOCS_8S_WD1, (S4_X(0x6) | S4_Y(0x1) |
2290 					     S5_X(0x0) | S5_Y(0x0) |
2291 					     S6_X(0xb) | S6_Y(0x4) |
2292 					     S7_X(0x7) | S7_Y(0x8)));
2293 
2294 	WREG32(VGT_STRMOUT_EN, 0);
2295 	tmp = rdev->config.r600.max_pipes * 16;
2296 	switch (rdev->family) {
2297 	case CHIP_RV610:
2298 	case CHIP_RV620:
2299 	case CHIP_RS780:
2300 	case CHIP_RS880:
2301 		tmp += 32;
2302 		break;
2303 	case CHIP_RV670:
2304 		tmp += 128;
2305 		break;
2306 	default:
2307 		break;
2308 	}
2309 	if (tmp > 256) {
2310 		tmp = 256;
2311 	}
2312 	WREG32(VGT_ES_PER_GS, 128);
2313 	WREG32(VGT_GS_PER_ES, tmp);
2314 	WREG32(VGT_GS_PER_VS, 2);
2315 	WREG32(VGT_GS_VERTEX_REUSE, 16);
2316 
2317 	/* more default values. 2D/3D driver should adjust as needed */
2318 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
2319 	WREG32(VGT_STRMOUT_EN, 0);
2320 	WREG32(SX_MISC, 0);
2321 	WREG32(PA_SC_MODE_CNTL, 0);
2322 	WREG32(PA_SC_AA_CONFIG, 0);
2323 	WREG32(PA_SC_LINE_STIPPLE, 0);
2324 	WREG32(SPI_INPUT_Z, 0);
2325 	WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
2326 	WREG32(CB_COLOR7_FRAG, 0);
2327 
2328 	/* Clear render buffer base addresses */
2329 	WREG32(CB_COLOR0_BASE, 0);
2330 	WREG32(CB_COLOR1_BASE, 0);
2331 	WREG32(CB_COLOR2_BASE, 0);
2332 	WREG32(CB_COLOR3_BASE, 0);
2333 	WREG32(CB_COLOR4_BASE, 0);
2334 	WREG32(CB_COLOR5_BASE, 0);
2335 	WREG32(CB_COLOR6_BASE, 0);
2336 	WREG32(CB_COLOR7_BASE, 0);
2337 	WREG32(CB_COLOR7_FRAG, 0);
2338 
2339 	switch (rdev->family) {
2340 	case CHIP_RV610:
2341 	case CHIP_RV620:
2342 	case CHIP_RS780:
2343 	case CHIP_RS880:
2344 		tmp = TC_L2_SIZE(8);
2345 		break;
2346 	case CHIP_RV630:
2347 	case CHIP_RV635:
2348 		tmp = TC_L2_SIZE(4);
2349 		break;
2350 	case CHIP_R600:
2351 		tmp = TC_L2_SIZE(0) | L2_DISABLE_LATE_HIT;
2352 		break;
2353 	default:
2354 		tmp = TC_L2_SIZE(0);
2355 		break;
2356 	}
2357 	WREG32(TC_CNTL, tmp);
2358 
2359 	tmp = RREG32(HDP_HOST_PATH_CNTL);
2360 	WREG32(HDP_HOST_PATH_CNTL, tmp);
2361 
2362 	tmp = RREG32(ARB_POP);
2363 	tmp |= ENABLE_TC128;
2364 	WREG32(ARB_POP, tmp);
2365 
2366 	WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
2367 	WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
2368 			       NUM_CLIP_SEQ(3)));
2369 	WREG32(PA_SC_ENHANCE, FORCE_EOV_MAX_CLK_CNT(4095));
2370 	WREG32(VC_ENHANCE, 0);
2371 }
2372 
2373 
2374 /*
2375  * Indirect registers accessor
2376  */
2377 u32 r600_pciep_rreg(struct radeon_device *rdev, u32 reg)
2378 {
2379 	u32 r;
2380 
2381 	lockmgr(&rdev->pciep_idx_lock, LK_EXCLUSIVE);
2382 	WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
2383 	(void)RREG32(PCIE_PORT_INDEX);
2384 	r = RREG32(PCIE_PORT_DATA);
2385 	lockmgr(&rdev->pciep_idx_lock, LK_RELEASE);
2386 	return r;
2387 }
2388 
2389 void r600_pciep_wreg(struct radeon_device *rdev, u32 reg, u32 v)
2390 {
2391 	lockmgr(&rdev->pciep_idx_lock, LK_EXCLUSIVE);
2392 	WREG32(PCIE_PORT_INDEX, ((reg) & 0xff));
2393 	(void)RREG32(PCIE_PORT_INDEX);
2394 	WREG32(PCIE_PORT_DATA, (v));
2395 	(void)RREG32(PCIE_PORT_DATA);
2396 	lockmgr(&rdev->pciep_idx_lock, LK_RELEASE);
2397 }
2398 
2399 /*
2400  * CP & Ring
2401  */
2402 void r600_cp_stop(struct radeon_device *rdev)
2403 {
2404 	if (rdev->asic->copy.copy_ring_index == RADEON_RING_TYPE_GFX_INDEX)
2405 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
2406 	WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
2407 	WREG32(SCRATCH_UMSK, 0);
2408 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
2409 }
2410 
2411 int r600_init_microcode(struct radeon_device *rdev)
2412 {
2413 	const char *chip_name;
2414 	const char *rlc_chip_name;
2415 	const char *smc_chip_name = "RV770";
2416 	size_t pfp_req_size, me_req_size, rlc_req_size, smc_req_size = 0;
2417 	char fw_name[30];
2418 	int err;
2419 
2420 	DRM_DEBUG("\n");
2421 
2422 	switch (rdev->family) {
2423 	case CHIP_R600:
2424 		chip_name = "R600";
2425 		rlc_chip_name = "R600";
2426 		break;
2427 	case CHIP_RV610:
2428 		chip_name = "RV610";
2429 		rlc_chip_name = "R600";
2430 		break;
2431 	case CHIP_RV630:
2432 		chip_name = "RV630";
2433 		rlc_chip_name = "R600";
2434 		break;
2435 	case CHIP_RV620:
2436 		chip_name = "RV620";
2437 		rlc_chip_name = "R600";
2438 		break;
2439 	case CHIP_RV635:
2440 		chip_name = "RV635";
2441 		rlc_chip_name = "R600";
2442 		break;
2443 	case CHIP_RV670:
2444 		chip_name = "RV670";
2445 		rlc_chip_name = "R600";
2446 		break;
2447 	case CHIP_RS780:
2448 	case CHIP_RS880:
2449 		chip_name = "RS780";
2450 		rlc_chip_name = "R600";
2451 		break;
2452 	case CHIP_RV770:
2453 		chip_name = "RV770";
2454 		rlc_chip_name = "R700";
2455 		smc_chip_name = "RV770";
2456 		smc_req_size = ALIGN(RV770_SMC_UCODE_SIZE, 4);
2457 		break;
2458 	case CHIP_RV730:
2459 		chip_name = "RV730";
2460 		rlc_chip_name = "R700";
2461 		smc_chip_name = "RV730";
2462 		smc_req_size = ALIGN(RV730_SMC_UCODE_SIZE, 4);
2463 		break;
2464 	case CHIP_RV710:
2465 		chip_name = "RV710";
2466 		rlc_chip_name = "R700";
2467 		smc_chip_name = "RV710";
2468 		smc_req_size = ALIGN(RV710_SMC_UCODE_SIZE, 4);
2469 		break;
2470 	case CHIP_RV740:
2471 		chip_name = "RV730";
2472 		rlc_chip_name = "R700";
2473 		smc_chip_name = "RV740";
2474 		smc_req_size = ALIGN(RV740_SMC_UCODE_SIZE, 4);
2475 		break;
2476 	case CHIP_CEDAR:
2477 		chip_name = "CEDAR";
2478 		rlc_chip_name = "CEDAR";
2479 		smc_chip_name = "CEDAR";
2480 		smc_req_size = ALIGN(CEDAR_SMC_UCODE_SIZE, 4);
2481 		break;
2482 	case CHIP_REDWOOD:
2483 		chip_name = "REDWOOD";
2484 		rlc_chip_name = "REDWOOD";
2485 		smc_chip_name = "REDWOOD";
2486 		smc_req_size = ALIGN(REDWOOD_SMC_UCODE_SIZE, 4);
2487 		break;
2488 	case CHIP_JUNIPER:
2489 		chip_name = "JUNIPER";
2490 		rlc_chip_name = "JUNIPER";
2491 		smc_chip_name = "JUNIPER";
2492 		smc_req_size = ALIGN(JUNIPER_SMC_UCODE_SIZE, 4);
2493 		break;
2494 	case CHIP_CYPRESS:
2495 	case CHIP_HEMLOCK:
2496 		chip_name = "CYPRESS";
2497 		rlc_chip_name = "CYPRESS";
2498 		smc_chip_name = "CYPRESS";
2499 		smc_req_size = ALIGN(CYPRESS_SMC_UCODE_SIZE, 4);
2500 		break;
2501 	case CHIP_PALM:
2502 		chip_name = "PALM";
2503 		rlc_chip_name = "SUMO";
2504 		break;
2505 	case CHIP_SUMO:
2506 		chip_name = "SUMO";
2507 		rlc_chip_name = "SUMO";
2508 		break;
2509 	case CHIP_SUMO2:
2510 		chip_name = "SUMO2";
2511 		rlc_chip_name = "SUMO";
2512 		break;
2513 	default: BUG();
2514 	}
2515 
2516 	if (rdev->family >= CHIP_CEDAR) {
2517 		pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
2518 		me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
2519 		rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
2520 	} else if (rdev->family >= CHIP_RV770) {
2521 		pfp_req_size = R700_PFP_UCODE_SIZE * 4;
2522 		me_req_size = R700_PM4_UCODE_SIZE * 4;
2523 		rlc_req_size = R700_RLC_UCODE_SIZE * 4;
2524 	} else {
2525 		pfp_req_size = R600_PFP_UCODE_SIZE * 4;
2526 		me_req_size = R600_PM4_UCODE_SIZE * 12;
2527 		rlc_req_size = R600_RLC_UCODE_SIZE * 4;
2528 	}
2529 
2530 	DRM_INFO("Loading %s Microcode\n", chip_name);
2531 
2532 	ksnprintf(fw_name, sizeof(fw_name), "radeonkmsfw_%s_pfp", chip_name);
2533 	err = request_firmware(&rdev->pfp_fw, fw_name, rdev->dev);
2534 	if (err)
2535 		goto out;
2536 	if (rdev->pfp_fw->datasize != pfp_req_size) {
2537 		printk(KERN_ERR
2538 		       "r600_cp: Bogus length %zu in firmware \"%s\"\n",
2539 		       rdev->pfp_fw->datasize, fw_name);
2540 		err = -EINVAL;
2541 		goto out;
2542 	}
2543 
2544 	ksnprintf(fw_name, sizeof(fw_name), "radeonkmsfw_%s_me", chip_name);
2545 	err = request_firmware(&rdev->me_fw, fw_name, rdev->dev);
2546 	if (err)
2547 		goto out;
2548 	if (rdev->me_fw->datasize != me_req_size) {
2549 		printk(KERN_ERR
2550 		       "r600_cp: Bogus length %zu in firmware \"%s\"\n",
2551 		       rdev->me_fw->datasize, fw_name);
2552 		err = -EINVAL;
2553 	}
2554 
2555 	ksnprintf(fw_name, sizeof(fw_name), "radeonkmsfw_%s_rlc", rlc_chip_name);
2556 	err = request_firmware(&rdev->rlc_fw, fw_name, rdev->dev);
2557 	if (err)
2558 		goto out;
2559 	if (rdev->rlc_fw->datasize != rlc_req_size) {
2560 		printk(KERN_ERR
2561 		       "r600_rlc: Bogus length %zu in firmware \"%s\"\n",
2562 		       rdev->rlc_fw->datasize, fw_name);
2563 		err = -EINVAL;
2564 	}
2565 
2566 	if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_HEMLOCK)) {
2567 		ksnprintf(fw_name, sizeof(fw_name), "radeonkmsfw_%s_smc", smc_chip_name);
2568 
2569 		err = request_firmware(&rdev->smc_fw, fw_name, rdev->dev);
2570 		if (err) {
2571 			printk(KERN_ERR
2572 			       "smc: error loading firmware \"%s\"\n",
2573 			       fw_name);
2574 			release_firmware(rdev->smc_fw);
2575 			rdev->smc_fw = NULL;
2576 			err = 0;
2577 		} else if (rdev->smc_fw->datasize != smc_req_size) {
2578 			printk(KERN_ERR
2579 			       "smc: Bogus length %zu in firmware \"%s\"\n",
2580 			       rdev->smc_fw->datasize, fw_name);
2581 			err = -EINVAL;
2582 		}
2583 	}
2584 
2585 out:
2586 	if (err) {
2587 		if (err != -EINVAL)
2588 			pr_err("r600_cp: Failed to load firmware \"%s\"\n",
2589 			       fw_name);
2590 		release_firmware(rdev->pfp_fw);
2591 		rdev->pfp_fw = NULL;
2592 		release_firmware(rdev->me_fw);
2593 		rdev->me_fw = NULL;
2594 		release_firmware(rdev->rlc_fw);
2595 		rdev->rlc_fw = NULL;
2596 		release_firmware(rdev->smc_fw);
2597 		rdev->smc_fw = NULL;
2598 	}
2599 	return err;
2600 }
2601 
2602 u32 r600_gfx_get_rptr(struct radeon_device *rdev,
2603 		      struct radeon_ring *ring)
2604 {
2605 	u32 rptr;
2606 
2607 	if (rdev->wb.enabled)
2608 		rptr = rdev->wb.wb[ring->rptr_offs/4];
2609 	else
2610 		rptr = RREG32(R600_CP_RB_RPTR);
2611 
2612 	return rptr;
2613 }
2614 
2615 u32 r600_gfx_get_wptr(struct radeon_device *rdev,
2616 		      struct radeon_ring *ring)
2617 {
2618 	return RREG32(R600_CP_RB_WPTR);
2619 }
2620 
2621 void r600_gfx_set_wptr(struct radeon_device *rdev,
2622 		       struct radeon_ring *ring)
2623 {
2624 	WREG32(R600_CP_RB_WPTR, ring->wptr);
2625 	(void)RREG32(R600_CP_RB_WPTR);
2626 }
2627 
2628 /**
2629  * r600_fini_microcode - drop the firmwares image references
2630  *
2631  * @rdev: radeon_device pointer
2632  *
2633  * Drop the pfp, me and rlc firmwares image references.
2634  * Called at driver shutdown.
2635  */
2636 void r600_fini_microcode(struct radeon_device *rdev)
2637 {
2638 	release_firmware(rdev->pfp_fw);
2639 	rdev->pfp_fw = NULL;
2640 	release_firmware(rdev->me_fw);
2641 	rdev->me_fw = NULL;
2642 	release_firmware(rdev->rlc_fw);
2643 	rdev->rlc_fw = NULL;
2644 	release_firmware(rdev->smc_fw);
2645 	rdev->smc_fw = NULL;
2646 }
2647 
2648 static int r600_cp_load_microcode(struct radeon_device *rdev)
2649 {
2650 	const __be32 *fw_data;
2651 	int i;
2652 
2653 	if (!rdev->me_fw || !rdev->pfp_fw)
2654 		return -EINVAL;
2655 
2656 	r600_cp_stop(rdev);
2657 
2658 	WREG32(CP_RB_CNTL,
2659 #ifdef __BIG_ENDIAN
2660 	       BUF_SWAP_32BIT |
2661 #endif
2662 	       RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
2663 
2664 	/* Reset cp */
2665 	WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
2666 	RREG32(GRBM_SOFT_RESET);
2667 	mdelay(15);
2668 	WREG32(GRBM_SOFT_RESET, 0);
2669 
2670 	WREG32(CP_ME_RAM_WADDR, 0);
2671 
2672 	fw_data = (const __be32 *)rdev->me_fw->data;
2673 	WREG32(CP_ME_RAM_WADDR, 0);
2674 	for (i = 0; i < R600_PM4_UCODE_SIZE * 3; i++)
2675 		WREG32(CP_ME_RAM_DATA,
2676 		       be32_to_cpup(fw_data++));
2677 
2678 	fw_data = (const __be32 *)rdev->pfp_fw->data;
2679 	WREG32(CP_PFP_UCODE_ADDR, 0);
2680 	for (i = 0; i < R600_PFP_UCODE_SIZE; i++)
2681 		WREG32(CP_PFP_UCODE_DATA,
2682 		       be32_to_cpup(fw_data++));
2683 
2684 	WREG32(CP_PFP_UCODE_ADDR, 0);
2685 	WREG32(CP_ME_RAM_WADDR, 0);
2686 	WREG32(CP_ME_RAM_RADDR, 0);
2687 	return 0;
2688 }
2689 
2690 int r600_cp_start(struct radeon_device *rdev)
2691 {
2692 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2693 	int r;
2694 	uint32_t cp_me;
2695 
2696 	r = radeon_ring_lock(rdev, ring, 7);
2697 	if (r) {
2698 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
2699 		return r;
2700 	}
2701 	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
2702 	radeon_ring_write(ring, 0x1);
2703 	if (rdev->family >= CHIP_RV770) {
2704 		radeon_ring_write(ring, 0x0);
2705 		radeon_ring_write(ring, rdev->config.rv770.max_hw_contexts - 1);
2706 	} else {
2707 		radeon_ring_write(ring, 0x3);
2708 		radeon_ring_write(ring, rdev->config.r600.max_hw_contexts - 1);
2709 	}
2710 	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
2711 	radeon_ring_write(ring, 0);
2712 	radeon_ring_write(ring, 0);
2713 	radeon_ring_unlock_commit(rdev, ring, false);
2714 
2715 	cp_me = 0xff;
2716 	WREG32(R_0086D8_CP_ME_CNTL, cp_me);
2717 	return 0;
2718 }
2719 
2720 int r600_cp_resume(struct radeon_device *rdev)
2721 {
2722 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2723 	u32 tmp;
2724 	u32 rb_bufsz;
2725 	int r;
2726 
2727 	/* Reset cp */
2728 	WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
2729 	RREG32(GRBM_SOFT_RESET);
2730 	mdelay(15);
2731 	WREG32(GRBM_SOFT_RESET, 0);
2732 
2733 	/* Set ring buffer size */
2734 	rb_bufsz = order_base_2(ring->ring_size / 8);
2735 	tmp = (order_base_2(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
2736 #ifdef __BIG_ENDIAN
2737 	tmp |= BUF_SWAP_32BIT;
2738 #endif
2739 	WREG32(CP_RB_CNTL, tmp);
2740 	WREG32(CP_SEM_WAIT_TIMER, 0x0);
2741 
2742 	/* Set the write pointer delay */
2743 	WREG32(CP_RB_WPTR_DELAY, 0);
2744 
2745 	/* Initialize the ring buffer's read and write pointers */
2746 	WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
2747 	WREG32(CP_RB_RPTR_WR, 0);
2748 	ring->wptr = 0;
2749 	WREG32(CP_RB_WPTR, ring->wptr);
2750 
2751 	/* set the wb address whether it's enabled or not */
2752 	WREG32(CP_RB_RPTR_ADDR,
2753 	       ((rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC));
2754 	WREG32(CP_RB_RPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFF);
2755 	WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
2756 
2757 	if (rdev->wb.enabled)
2758 		WREG32(SCRATCH_UMSK, 0xff);
2759 	else {
2760 		tmp |= RB_NO_UPDATE;
2761 		WREG32(SCRATCH_UMSK, 0);
2762 	}
2763 
2764 	mdelay(1);
2765 	WREG32(CP_RB_CNTL, tmp);
2766 
2767 	WREG32(CP_RB_BASE, ring->gpu_addr >> 8);
2768 	WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
2769 
2770 	r600_cp_start(rdev);
2771 	ring->ready = true;
2772 	r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, ring);
2773 	if (r) {
2774 		ring->ready = false;
2775 		return r;
2776 	}
2777 
2778 	if (rdev->asic->copy.copy_ring_index == RADEON_RING_TYPE_GFX_INDEX)
2779 		radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
2780 
2781 	return 0;
2782 }
2783 
2784 void r600_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size)
2785 {
2786 	u32 rb_bufsz;
2787 	int r;
2788 
2789 	/* Align ring size */
2790 	rb_bufsz = order_base_2(ring_size / 8);
2791 	ring_size = (1 << (rb_bufsz + 1)) * 4;
2792 	ring->ring_size = ring_size;
2793 	ring->align_mask = 16 - 1;
2794 
2795 	if (radeon_ring_supports_scratch_reg(rdev, ring)) {
2796 		r = radeon_scratch_get(rdev, &ring->rptr_save_reg);
2797 		if (r) {
2798 			DRM_ERROR("failed to get scratch reg for rptr save (%d).\n", r);
2799 			ring->rptr_save_reg = 0;
2800 		}
2801 	}
2802 }
2803 
2804 void r600_cp_fini(struct radeon_device *rdev)
2805 {
2806 	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
2807 	r600_cp_stop(rdev);
2808 	radeon_ring_fini(rdev, ring);
2809 	radeon_scratch_free(rdev, ring->rptr_save_reg);
2810 }
2811 
2812 /*
2813  * GPU scratch registers helpers function.
2814  */
2815 void r600_scratch_init(struct radeon_device *rdev)
2816 {
2817 	int i;
2818 
2819 	rdev->scratch.num_reg = 7;
2820 	rdev->scratch.reg_base = SCRATCH_REG0;
2821 	for (i = 0; i < rdev->scratch.num_reg; i++) {
2822 		rdev->scratch.free[i] = true;
2823 		rdev->scratch.reg[i] = rdev->scratch.reg_base + (i * 4);
2824 	}
2825 }
2826 
2827 int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
2828 {
2829 	uint32_t scratch;
2830 	uint32_t tmp = 0;
2831 	unsigned i;
2832 	int r;
2833 
2834 	r = radeon_scratch_get(rdev, &scratch);
2835 	if (r) {
2836 		DRM_ERROR("radeon: cp failed to get scratch reg (%d).\n", r);
2837 		return r;
2838 	}
2839 	WREG32(scratch, 0xCAFEDEAD);
2840 	r = radeon_ring_lock(rdev, ring, 3);
2841 	if (r) {
2842 		DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n", ring->idx, r);
2843 		radeon_scratch_free(rdev, scratch);
2844 		return r;
2845 	}
2846 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2847 	radeon_ring_write(ring, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
2848 	radeon_ring_write(ring, 0xDEADBEEF);
2849 	radeon_ring_unlock_commit(rdev, ring, false);
2850 	for (i = 0; i < rdev->usec_timeout; i++) {
2851 		tmp = RREG32(scratch);
2852 		if (tmp == 0xDEADBEEF)
2853 			break;
2854 		DRM_UDELAY(1);
2855 	}
2856 	if (i < rdev->usec_timeout) {
2857 		DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
2858 	} else {
2859 		DRM_ERROR("radeon: ring %d test failed (scratch(0x%04X)=0x%08X)\n",
2860 			  ring->idx, scratch, tmp);
2861 		r = -EINVAL;
2862 	}
2863 	radeon_scratch_free(rdev, scratch);
2864 	return r;
2865 }
2866 
2867 /*
2868  * CP fences/semaphores
2869  */
2870 
2871 void r600_fence_ring_emit(struct radeon_device *rdev,
2872 			  struct radeon_fence *fence)
2873 {
2874 	struct radeon_ring *ring = &rdev->ring[fence->ring];
2875 	u32 cp_coher_cntl = PACKET3_TC_ACTION_ENA | PACKET3_VC_ACTION_ENA |
2876 		PACKET3_SH_ACTION_ENA;
2877 
2878 	if (rdev->family >= CHIP_RV770)
2879 		cp_coher_cntl |= PACKET3_FULL_CACHE_ENA;
2880 
2881 	if (rdev->wb.use_event) {
2882 		u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
2883 		/* flush read cache over gart */
2884 		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
2885 		radeon_ring_write(ring, cp_coher_cntl);
2886 		radeon_ring_write(ring, 0xFFFFFFFF);
2887 		radeon_ring_write(ring, 0);
2888 		radeon_ring_write(ring, 10); /* poll interval */
2889 		/* EVENT_WRITE_EOP - flush caches, send int */
2890 		radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
2891 		radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
2892 		radeon_ring_write(ring, lower_32_bits(addr));
2893 		radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
2894 		radeon_ring_write(ring, fence->seq);
2895 		radeon_ring_write(ring, 0);
2896 	} else {
2897 		/* flush read cache over gart */
2898 		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
2899 		radeon_ring_write(ring, cp_coher_cntl);
2900 		radeon_ring_write(ring, 0xFFFFFFFF);
2901 		radeon_ring_write(ring, 0);
2902 		radeon_ring_write(ring, 10); /* poll interval */
2903 		radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE, 0));
2904 		radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0));
2905 		/* wait for 3D idle clean */
2906 		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2907 		radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2908 		radeon_ring_write(ring, WAIT_3D_IDLE_bit | WAIT_3D_IDLECLEAN_bit);
2909 		/* Emit fence sequence & fire IRQ */
2910 		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2911 		radeon_ring_write(ring, ((rdev->fence_drv[fence->ring].scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
2912 		radeon_ring_write(ring, fence->seq);
2913 		/* CP_INTERRUPT packet 3 no longer exists, use packet 0 */
2914 		radeon_ring_write(ring, PACKET0(CP_INT_STATUS, 0));
2915 		radeon_ring_write(ring, RB_INT_STAT);
2916 	}
2917 }
2918 
2919 /**
2920  * r600_semaphore_ring_emit - emit a semaphore on the CP ring
2921  *
2922  * @rdev: radeon_device pointer
2923  * @ring: radeon ring buffer object
2924  * @semaphore: radeon semaphore object
2925  * @emit_wait: Is this a sempahore wait?
2926  *
2927  * Emits a semaphore signal/wait packet to the CP ring and prevents the PFP
2928  * from running ahead of semaphore waits.
2929  */
2930 bool r600_semaphore_ring_emit(struct radeon_device *rdev,
2931 			      struct radeon_ring *ring,
2932 			      struct radeon_semaphore *semaphore,
2933 			      bool emit_wait)
2934 {
2935 	uint64_t addr = semaphore->gpu_addr;
2936 	unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
2937 
2938 	if (rdev->family < CHIP_CAYMAN)
2939 		sel |= PACKET3_SEM_WAIT_ON_SIGNAL;
2940 
2941 	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
2942 	radeon_ring_write(ring, lower_32_bits(addr));
2943 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
2944 
2945 	/* PFP_SYNC_ME packet only exists on 7xx+, only enable it on eg+ */
2946 	if (emit_wait && (rdev->family >= CHIP_CEDAR)) {
2947 		/* Prevent the PFP from running ahead of the semaphore wait */
2948 		radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
2949 		radeon_ring_write(ring, 0x0);
2950 	}
2951 
2952 	return true;
2953 }
2954 
2955 /**
2956  * r600_copy_cpdma - copy pages using the CP DMA engine
2957  *
2958  * @rdev: radeon_device pointer
2959  * @src_offset: src GPU address
2960  * @dst_offset: dst GPU address
2961  * @num_gpu_pages: number of GPU pages to xfer
2962  * @fence: radeon fence object
2963  *
2964  * Copy GPU paging using the CP DMA engine (r6xx+).
2965  * Used by the radeon ttm implementation to move pages if
2966  * registered as the asic copy callback.
2967  */
2968 struct radeon_fence *r600_copy_cpdma(struct radeon_device *rdev,
2969 				     uint64_t src_offset, uint64_t dst_offset,
2970 				     unsigned num_gpu_pages,
2971 				     struct reservation_object *resv)
2972 {
2973 	struct radeon_fence *fence;
2974 	struct radeon_sync sync;
2975 	int ring_index = rdev->asic->copy.blit_ring_index;
2976 	struct radeon_ring *ring = &rdev->ring[ring_index];
2977 	u32 size_in_bytes, cur_size_in_bytes, tmp;
2978 	int i, num_loops;
2979 	int r = 0;
2980 
2981 	radeon_sync_create(&sync);
2982 
2983 	size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
2984 	num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff);
2985 	r = radeon_ring_lock(rdev, ring, num_loops * 6 + 24);
2986 	if (r) {
2987 		DRM_ERROR("radeon: moving bo (%d).\n", r);
2988 		radeon_sync_free(rdev, &sync, NULL);
2989 		return ERR_PTR(r);
2990 	}
2991 
2992 	radeon_sync_resv(rdev, &sync, resv, false);
2993 	radeon_sync_rings(rdev, &sync, ring->idx);
2994 
2995 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
2996 	radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
2997 	radeon_ring_write(ring, WAIT_3D_IDLE_bit);
2998 	for (i = 0; i < num_loops; i++) {
2999 		cur_size_in_bytes = size_in_bytes;
3000 		if (cur_size_in_bytes > 0x1fffff)
3001 			cur_size_in_bytes = 0x1fffff;
3002 		size_in_bytes -= cur_size_in_bytes;
3003 		tmp = upper_32_bits(src_offset) & 0xff;
3004 		if (size_in_bytes == 0)
3005 			tmp |= PACKET3_CP_DMA_CP_SYNC;
3006 		radeon_ring_write(ring, PACKET3(PACKET3_CP_DMA, 4));
3007 		radeon_ring_write(ring, lower_32_bits(src_offset));
3008 		radeon_ring_write(ring, tmp);
3009 		radeon_ring_write(ring, lower_32_bits(dst_offset));
3010 		radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
3011 		radeon_ring_write(ring, cur_size_in_bytes);
3012 		src_offset += cur_size_in_bytes;
3013 		dst_offset += cur_size_in_bytes;
3014 	}
3015 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
3016 	radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
3017 	radeon_ring_write(ring, WAIT_CP_DMA_IDLE_bit);
3018 
3019 	r = radeon_fence_emit(rdev, &fence, ring->idx);
3020 	if (r) {
3021 		radeon_ring_unlock_undo(rdev, ring);
3022 		radeon_sync_free(rdev, &sync, NULL);
3023 		return ERR_PTR(r);
3024 	}
3025 
3026 	radeon_ring_unlock_commit(rdev, ring, false);
3027 	radeon_sync_free(rdev, &sync, fence);
3028 
3029 	return fence;
3030 }
3031 
3032 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
3033 			 uint32_t tiling_flags, uint32_t pitch,
3034 			 uint32_t offset, uint32_t obj_size)
3035 {
3036 	/* FIXME: implement */
3037 	return 0;
3038 }
3039 
3040 void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
3041 {
3042 	/* FIXME: implement */
3043 }
3044 
3045 static void r600_uvd_init(struct radeon_device *rdev)
3046 {
3047 	int r;
3048 
3049 	if (!rdev->has_uvd)
3050 		return;
3051 
3052 	r = radeon_uvd_init(rdev);
3053 	if (r) {
3054 		dev_err(rdev->dev, "failed UVD (%d) init.\n", r);
3055 		/*
3056 		 * At this point rdev->uvd.vcpu_bo is NULL which trickles down
3057 		 * to early fails uvd_v1_0_resume() and thus nothing happens
3058 		 * there. So it is pointless to try to go through that code
3059 		 * hence why we disable uvd here.
3060 		 */
3061 		rdev->has_uvd = 0;
3062 		return;
3063 	}
3064 	rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
3065 	r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX], 4096);
3066 }
3067 
3068 static void r600_uvd_start(struct radeon_device *rdev)
3069 {
3070 	int r;
3071 
3072 	if (!rdev->has_uvd)
3073 		return;
3074 
3075 	r = uvd_v1_0_resume(rdev);
3076 	if (r) {
3077 		dev_err(rdev->dev, "failed UVD resume (%d).\n", r);
3078 		goto error;
3079 	}
3080 	r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX);
3081 	if (r) {
3082 		dev_err(rdev->dev, "failed initializing UVD fences (%d).\n", r);
3083 		goto error;
3084 	}
3085 	return;
3086 
3087 error:
3088 	rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
3089 }
3090 
3091 static void r600_uvd_resume(struct radeon_device *rdev)
3092 {
3093 	struct radeon_ring *ring;
3094 	int r;
3095 
3096 	if (!rdev->has_uvd || !rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size)
3097 		return;
3098 
3099 	ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
3100 	r = radeon_ring_init(rdev, ring, ring->ring_size, 0, PACKET0(UVD_NO_OP, 0));
3101 	if (r) {
3102 		dev_err(rdev->dev, "failed initializing UVD ring (%d).\n", r);
3103 		return;
3104 	}
3105 	r = uvd_v1_0_init(rdev);
3106 	if (r) {
3107 		dev_err(rdev->dev, "failed initializing UVD (%d).\n", r);
3108 		return;
3109 	}
3110 }
3111 
3112 static int r600_startup(struct radeon_device *rdev)
3113 {
3114 	struct radeon_ring *ring;
3115 	int r;
3116 
3117 	/* enable pcie gen2 link */
3118 	r600_pcie_gen2_enable(rdev);
3119 
3120 	/* scratch needs to be initialized before MC */
3121 	r = r600_vram_scratch_init(rdev);
3122 	if (r)
3123 		return r;
3124 
3125 	r600_mc_program(rdev);
3126 
3127 	if (rdev->flags & RADEON_IS_AGP) {
3128 		r600_agp_enable(rdev);
3129 	} else {
3130 		r = r600_pcie_gart_enable(rdev);
3131 		if (r)
3132 			return r;
3133 	}
3134 	r600_gpu_init(rdev);
3135 
3136 	/* allocate wb buffer */
3137 	r = radeon_wb_init(rdev);
3138 	if (r)
3139 		return r;
3140 
3141 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
3142 	if (r) {
3143 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
3144 		return r;
3145 	}
3146 
3147 	r600_uvd_start(rdev);
3148 
3149 	/* Enable IRQ */
3150 	if (!rdev->irq.installed) {
3151 		r = radeon_irq_kms_init(rdev);
3152 		if (r)
3153 			return r;
3154 	}
3155 
3156 	r = r600_irq_init(rdev);
3157 	if (r) {
3158 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
3159 		radeon_irq_kms_fini(rdev);
3160 		return r;
3161 	}
3162 	r600_irq_set(rdev);
3163 
3164 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
3165 	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
3166 			     RADEON_CP_PACKET2);
3167 	if (r)
3168 		return r;
3169 
3170 	r = r600_cp_load_microcode(rdev);
3171 	if (r)
3172 		return r;
3173 	r = r600_cp_resume(rdev);
3174 	if (r)
3175 		return r;
3176 
3177 	r600_uvd_resume(rdev);
3178 
3179 	r = radeon_ib_pool_init(rdev);
3180 	if (r) {
3181 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
3182 		return r;
3183 	}
3184 
3185 	r = radeon_audio_init(rdev);
3186 	if (r) {
3187 		DRM_ERROR("radeon: audio init failed\n");
3188 		return r;
3189 	}
3190 
3191 	return 0;
3192 }
3193 
3194 void r600_vga_set_state(struct radeon_device *rdev, bool state)
3195 {
3196 	uint32_t temp;
3197 
3198 	temp = RREG32(CONFIG_CNTL);
3199 	if (state == false) {
3200 		temp &= ~(1<<0);
3201 		temp |= (1<<1);
3202 	} else {
3203 		temp &= ~(1<<1);
3204 	}
3205 	WREG32(CONFIG_CNTL, temp);
3206 }
3207 
3208 int r600_resume(struct radeon_device *rdev)
3209 {
3210 	int r;
3211 
3212 	/* Do not reset GPU before posting, on r600 hw unlike on r500 hw,
3213 	 * posting will perform necessary task to bring back GPU into good
3214 	 * shape.
3215 	 */
3216 	/* post card */
3217 	atom_asic_init(rdev->mode_info.atom_context);
3218 
3219 	if (rdev->pm.pm_method == PM_METHOD_DPM)
3220 		radeon_pm_resume(rdev);
3221 
3222 	rdev->accel_working = true;
3223 	r = r600_startup(rdev);
3224 	if (r) {
3225 		DRM_ERROR("r600 startup failed on resume\n");
3226 		rdev->accel_working = false;
3227 		return r;
3228 	}
3229 
3230 	return r;
3231 }
3232 
3233 int r600_suspend(struct radeon_device *rdev)
3234 {
3235 	radeon_pm_suspend(rdev);
3236 	radeon_audio_fini(rdev);
3237 	r600_cp_stop(rdev);
3238 	if (rdev->has_uvd) {
3239 		uvd_v1_0_fini(rdev);
3240 		radeon_uvd_suspend(rdev);
3241 	}
3242 	r600_irq_suspend(rdev);
3243 	radeon_wb_disable(rdev);
3244 	r600_pcie_gart_disable(rdev);
3245 
3246 	return 0;
3247 }
3248 
3249 /* Plan is to move initialization in that function and use
3250  * helper function so that radeon_device_init pretty much
3251  * do nothing more than calling asic specific function. This
3252  * should also allow to remove a bunch of callback function
3253  * like vram_info.
3254  */
3255 int r600_init(struct radeon_device *rdev)
3256 {
3257 	int r;
3258 
3259 	if (r600_debugfs_mc_info_init(rdev)) {
3260 		DRM_ERROR("Failed to register debugfs file for mc !\n");
3261 	}
3262 	/* Read BIOS */
3263 	if (!radeon_get_bios(rdev)) {
3264 		if (ASIC_IS_AVIVO(rdev))
3265 			return -EINVAL;
3266 	}
3267 	/* Must be an ATOMBIOS */
3268 	if (!rdev->is_atom_bios) {
3269 		dev_err(rdev->dev, "Expecting atombios for R600 GPU\n");
3270 		return -EINVAL;
3271 	}
3272 	r = radeon_atombios_init(rdev);
3273 	if (r)
3274 		return r;
3275 	/* Post card if necessary */
3276 	if (!radeon_card_posted(rdev)) {
3277 		if (!rdev->bios) {
3278 			dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
3279 			return -EINVAL;
3280 		}
3281 		DRM_INFO("GPU not posted. posting now...\n");
3282 		atom_asic_init(rdev->mode_info.atom_context);
3283 	}
3284 	/* Initialize scratch registers */
3285 	r600_scratch_init(rdev);
3286 	/* Initialize surface registers */
3287 	radeon_surface_init(rdev);
3288 	/* Initialize clocks */
3289 	radeon_get_clock_info(rdev->ddev);
3290 	/* Fence driver */
3291 	r = radeon_fence_driver_init(rdev);
3292 	if (r)
3293 		return r;
3294 	if (rdev->flags & RADEON_IS_AGP) {
3295 		r = radeon_agp_init(rdev);
3296 		if (r)
3297 			radeon_agp_disable(rdev);
3298 	}
3299 	r = r600_mc_init(rdev);
3300 	if (r)
3301 		return r;
3302 	/* Memory manager */
3303 	r = radeon_bo_init(rdev);
3304 	if (r)
3305 		return r;
3306 
3307 	if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
3308 		r = r600_init_microcode(rdev);
3309 		if (r) {
3310 			DRM_ERROR("Failed to load firmware!\n");
3311 			return r;
3312 		}
3313 	}
3314 
3315 	/* Initialize power management */
3316 	radeon_pm_init(rdev);
3317 
3318 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
3319 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
3320 
3321 	r600_uvd_init(rdev);
3322 
3323 	rdev->ih.ring_obj = NULL;
3324 	r600_ih_ring_init(rdev, 64 * 1024);
3325 
3326 	r = r600_pcie_gart_init(rdev);
3327 	if (r)
3328 		return r;
3329 
3330 	rdev->accel_working = true;
3331 	r = r600_startup(rdev);
3332 	if (r) {
3333 		dev_err(rdev->dev, "disabling GPU acceleration\n");
3334 		r600_cp_fini(rdev);
3335 		r600_irq_fini(rdev);
3336 		radeon_wb_fini(rdev);
3337 		radeon_ib_pool_fini(rdev);
3338 		radeon_irq_kms_fini(rdev);
3339 		r600_pcie_gart_fini(rdev);
3340 		rdev->accel_working = false;
3341 	}
3342 
3343 	return 0;
3344 }
3345 
3346 void r600_fini(struct radeon_device *rdev)
3347 {
3348 	radeon_pm_fini(rdev);
3349 	radeon_audio_fini(rdev);
3350 	r600_cp_fini(rdev);
3351 	r600_irq_fini(rdev);
3352 	if (rdev->has_uvd) {
3353 		uvd_v1_0_fini(rdev);
3354 		radeon_uvd_fini(rdev);
3355 	}
3356 	radeon_wb_fini(rdev);
3357 	radeon_ib_pool_fini(rdev);
3358 	radeon_irq_kms_fini(rdev);
3359 	r600_pcie_gart_fini(rdev);
3360 	r600_vram_scratch_fini(rdev);
3361 	radeon_agp_fini(rdev);
3362 	radeon_gem_fini(rdev);
3363 	radeon_fence_driver_fini(rdev);
3364 	radeon_bo_fini(rdev);
3365 	radeon_atombios_fini(rdev);
3366 	r600_fini_microcode(rdev);
3367 	kfree(rdev->bios);
3368 	rdev->bios = NULL;
3369 }
3370 
3371 
3372 /*
3373  * CS stuff
3374  */
3375 void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
3376 {
3377 	struct radeon_ring *ring = &rdev->ring[ib->ring];
3378 	u32 next_rptr;
3379 
3380 	if (ring->rptr_save_reg) {
3381 		next_rptr = ring->wptr + 3 + 4;
3382 		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
3383 		radeon_ring_write(ring, ((ring->rptr_save_reg -
3384 					 PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
3385 		radeon_ring_write(ring, next_rptr);
3386 	} else if (rdev->wb.enabled) {
3387 		next_rptr = ring->wptr + 5 + 4;
3388 		radeon_ring_write(ring, PACKET3(PACKET3_MEM_WRITE, 3));
3389 		radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
3390 		radeon_ring_write(ring, (upper_32_bits(ring->next_rptr_gpu_addr) & 0xff) | (1 << 18));
3391 		radeon_ring_write(ring, next_rptr);
3392 		radeon_ring_write(ring, 0);
3393 	}
3394 
3395 	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
3396 	radeon_ring_write(ring,
3397 #ifdef __BIG_ENDIAN
3398 			  (2 << 0) |
3399 #endif
3400 			  (ib->gpu_addr & 0xFFFFFFFC));
3401 	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
3402 	radeon_ring_write(ring, ib->length_dw);
3403 }
3404 
3405 int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
3406 {
3407 	struct radeon_ib ib;
3408 	uint32_t scratch;
3409 	uint32_t tmp = 0;
3410 	unsigned i;
3411 	int r;
3412 
3413 	r = radeon_scratch_get(rdev, &scratch);
3414 	if (r) {
3415 		DRM_ERROR("radeon: failed to get scratch reg (%d).\n", r);
3416 		return r;
3417 	}
3418 	WREG32(scratch, 0xCAFEDEAD);
3419 	r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
3420 	if (r) {
3421 		DRM_ERROR("radeon: failed to get ib (%d).\n", r);
3422 		goto free_scratch;
3423 	}
3424 	ib.ptr[0] = PACKET3(PACKET3_SET_CONFIG_REG, 1);
3425 	ib.ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
3426 	ib.ptr[2] = 0xDEADBEEF;
3427 	ib.length_dw = 3;
3428 	r = radeon_ib_schedule(rdev, &ib, NULL, false);
3429 	if (r) {
3430 		DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
3431 		goto free_ib;
3432 	}
3433 	r = radeon_fence_wait_timeout(ib.fence, false, usecs_to_jiffies(
3434 		RADEON_USEC_IB_TEST_TIMEOUT));
3435 	if (r < 0) {
3436 		DRM_ERROR("radeon: fence wait failed (%d).\n", r);
3437 		goto free_ib;
3438 	} else if (r == 0) {
3439 		DRM_ERROR("radeon: fence wait timed out.\n");
3440 		r = -ETIMEDOUT;
3441 		goto free_ib;
3442 	}
3443 	r = 0;
3444 	for (i = 0; i < rdev->usec_timeout; i++) {
3445 		tmp = RREG32(scratch);
3446 		if (tmp == 0xDEADBEEF)
3447 			break;
3448 		DRM_UDELAY(1);
3449 	}
3450 	if (i < rdev->usec_timeout) {
3451 		DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
3452 	} else {
3453 		DRM_ERROR("radeon: ib test failed (scratch(0x%04X)=0x%08X)\n",
3454 			  scratch, tmp);
3455 		r = -EINVAL;
3456 	}
3457 free_ib:
3458 	radeon_ib_free(rdev, &ib);
3459 free_scratch:
3460 	radeon_scratch_free(rdev, scratch);
3461 	return r;
3462 }
3463 
3464 /*
3465  * Interrupts
3466  *
3467  * Interrupts use a ring buffer on r6xx/r7xx hardware.  It works pretty
3468  * the same as the CP ring buffer, but in reverse.  Rather than the CPU
3469  * writing to the ring and the GPU consuming, the GPU writes to the ring
3470  * and host consumes.  As the host irq handler processes interrupts, it
3471  * increments the rptr.  When the rptr catches up with the wptr, all the
3472  * current interrupts have been processed.
3473  */
3474 
3475 void r600_ih_ring_init(struct radeon_device *rdev, unsigned ring_size)
3476 {
3477 	u32 rb_bufsz;
3478 
3479 	/* Align ring size */
3480 	rb_bufsz = order_base_2(ring_size / 4);
3481 	ring_size = (1 << rb_bufsz) * 4;
3482 	rdev->ih.ring_size = ring_size;
3483 	rdev->ih.ptr_mask = rdev->ih.ring_size - 1;
3484 	rdev->ih.rptr = 0;
3485 }
3486 
3487 int r600_ih_ring_alloc(struct radeon_device *rdev)
3488 {
3489 	int r;
3490 	void *ring_ptr = &rdev->ih.ring;
3491 
3492 	/* Allocate ring buffer */
3493 	if (rdev->ih.ring_obj == NULL) {
3494 		r = radeon_bo_create(rdev, rdev->ih.ring_size,
3495 				     PAGE_SIZE, true,
3496 				     RADEON_GEM_DOMAIN_GTT, 0,
3497 				     NULL, NULL, &rdev->ih.ring_obj);
3498 		if (r) {
3499 			DRM_ERROR("radeon: failed to create ih ring buffer (%d).\n", r);
3500 			return r;
3501 		}
3502 		r = radeon_bo_reserve(rdev->ih.ring_obj, false);
3503 		if (unlikely(r != 0))
3504 			return r;
3505 		r = radeon_bo_pin(rdev->ih.ring_obj,
3506 				  RADEON_GEM_DOMAIN_GTT,
3507 				  (u64 *)&rdev->ih.gpu_addr);
3508 		if (r) {
3509 			radeon_bo_unreserve(rdev->ih.ring_obj);
3510 			DRM_ERROR("radeon: failed to pin ih ring buffer (%d).\n", r);
3511 			return r;
3512 		}
3513 		r = radeon_bo_kmap(rdev->ih.ring_obj,
3514 				   ring_ptr);
3515 		radeon_bo_unreserve(rdev->ih.ring_obj);
3516 		if (r) {
3517 			DRM_ERROR("radeon: failed to map ih ring buffer (%d).\n", r);
3518 			return r;
3519 		}
3520 	}
3521 	return 0;
3522 }
3523 
3524 void r600_ih_ring_fini(struct radeon_device *rdev)
3525 {
3526 	int r;
3527 	if (rdev->ih.ring_obj) {
3528 		r = radeon_bo_reserve(rdev->ih.ring_obj, false);
3529 		if (likely(r == 0)) {
3530 			radeon_bo_kunmap(rdev->ih.ring_obj);
3531 			radeon_bo_unpin(rdev->ih.ring_obj);
3532 			radeon_bo_unreserve(rdev->ih.ring_obj);
3533 		}
3534 		radeon_bo_unref(&rdev->ih.ring_obj);
3535 		rdev->ih.ring = NULL;
3536 		rdev->ih.ring_obj = NULL;
3537 	}
3538 }
3539 
3540 void r600_rlc_stop(struct radeon_device *rdev)
3541 {
3542 
3543 	if ((rdev->family >= CHIP_RV770) &&
3544 	    (rdev->family <= CHIP_RV740)) {
3545 		/* r7xx asics need to soft reset RLC before halting */
3546 		WREG32(SRBM_SOFT_RESET, SOFT_RESET_RLC);
3547 		RREG32(SRBM_SOFT_RESET);
3548 		mdelay(15);
3549 		WREG32(SRBM_SOFT_RESET, 0);
3550 		RREG32(SRBM_SOFT_RESET);
3551 	}
3552 
3553 	WREG32(RLC_CNTL, 0);
3554 }
3555 
3556 static void r600_rlc_start(struct radeon_device *rdev)
3557 {
3558 	WREG32(RLC_CNTL, RLC_ENABLE);
3559 }
3560 
3561 static int r600_rlc_resume(struct radeon_device *rdev)
3562 {
3563 	u32 i;
3564 	const __be32 *fw_data;
3565 
3566 	if (!rdev->rlc_fw)
3567 		return -EINVAL;
3568 
3569 	r600_rlc_stop(rdev);
3570 
3571 	WREG32(RLC_HB_CNTL, 0);
3572 
3573 	WREG32(RLC_HB_BASE, 0);
3574 	WREG32(RLC_HB_RPTR, 0);
3575 	WREG32(RLC_HB_WPTR, 0);
3576 	WREG32(RLC_HB_WPTR_LSB_ADDR, 0);
3577 	WREG32(RLC_HB_WPTR_MSB_ADDR, 0);
3578 	WREG32(RLC_MC_CNTL, 0);
3579 	WREG32(RLC_UCODE_CNTL, 0);
3580 
3581 	fw_data = (const __be32 *)rdev->rlc_fw->data;
3582 	if (rdev->family >= CHIP_RV770) {
3583 		for (i = 0; i < R700_RLC_UCODE_SIZE; i++) {
3584 			WREG32(RLC_UCODE_ADDR, i);
3585 			WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
3586 		}
3587 	} else {
3588 		for (i = 0; i < R600_RLC_UCODE_SIZE; i++) {
3589 			WREG32(RLC_UCODE_ADDR, i);
3590 			WREG32(RLC_UCODE_DATA, be32_to_cpup(fw_data++));
3591 		}
3592 	}
3593 	WREG32(RLC_UCODE_ADDR, 0);
3594 
3595 	r600_rlc_start(rdev);
3596 
3597 	return 0;
3598 }
3599 
3600 static void r600_enable_interrupts(struct radeon_device *rdev)
3601 {
3602 	u32 ih_cntl = RREG32(IH_CNTL);
3603 	u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3604 
3605 	ih_cntl |= ENABLE_INTR;
3606 	ih_rb_cntl |= IH_RB_ENABLE;
3607 	WREG32(IH_CNTL, ih_cntl);
3608 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3609 	rdev->ih.enabled = true;
3610 }
3611 
3612 void r600_disable_interrupts(struct radeon_device *rdev)
3613 {
3614 	u32 ih_rb_cntl = RREG32(IH_RB_CNTL);
3615 	u32 ih_cntl = RREG32(IH_CNTL);
3616 
3617 	ih_rb_cntl &= ~IH_RB_ENABLE;
3618 	ih_cntl &= ~ENABLE_INTR;
3619 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3620 	WREG32(IH_CNTL, ih_cntl);
3621 	/* set rptr, wptr to 0 */
3622 	WREG32(IH_RB_RPTR, 0);
3623 	WREG32(IH_RB_WPTR, 0);
3624 	rdev->ih.enabled = false;
3625 	rdev->ih.rptr = 0;
3626 }
3627 
3628 static void r600_disable_interrupt_state(struct radeon_device *rdev)
3629 {
3630 	u32 tmp;
3631 
3632 	WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
3633 	tmp = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
3634 	WREG32(DMA_CNTL, tmp);
3635 	WREG32(GRBM_INT_CNTL, 0);
3636 	WREG32(DxMODE_INT_MASK, 0);
3637 	WREG32(D1GRPH_INTERRUPT_CONTROL, 0);
3638 	WREG32(D2GRPH_INTERRUPT_CONTROL, 0);
3639 	if (ASIC_IS_DCE3(rdev)) {
3640 		WREG32(DCE3_DACA_AUTODETECT_INT_CONTROL, 0);
3641 		WREG32(DCE3_DACB_AUTODETECT_INT_CONTROL, 0);
3642 		tmp = RREG32(DC_HPD1_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3643 		WREG32(DC_HPD1_INT_CONTROL, tmp);
3644 		tmp = RREG32(DC_HPD2_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3645 		WREG32(DC_HPD2_INT_CONTROL, tmp);
3646 		tmp = RREG32(DC_HPD3_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3647 		WREG32(DC_HPD3_INT_CONTROL, tmp);
3648 		tmp = RREG32(DC_HPD4_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3649 		WREG32(DC_HPD4_INT_CONTROL, tmp);
3650 		if (ASIC_IS_DCE32(rdev)) {
3651 			tmp = RREG32(DC_HPD5_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3652 			WREG32(DC_HPD5_INT_CONTROL, tmp);
3653 			tmp = RREG32(DC_HPD6_INT_CONTROL) & DC_HPDx_INT_POLARITY;
3654 			WREG32(DC_HPD6_INT_CONTROL, tmp);
3655 			tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3656 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, tmp);
3657 			tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3658 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, tmp);
3659 		} else {
3660 			tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3661 			WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
3662 			tmp = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3663 			WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, tmp);
3664 		}
3665 	} else {
3666 		WREG32(DACA_AUTODETECT_INT_CONTROL, 0);
3667 		WREG32(DACB_AUTODETECT_INT_CONTROL, 0);
3668 		tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3669 		WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
3670 		tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3671 		WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
3672 		tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & DC_HOT_PLUG_DETECTx_INT_POLARITY;
3673 		WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
3674 		tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3675 		WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
3676 		tmp = RREG32(HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3677 		WREG32(HDMI1_AUDIO_PACKET_CONTROL, tmp);
3678 	}
3679 }
3680 
3681 int r600_irq_init(struct radeon_device *rdev)
3682 {
3683 	int ret = 0;
3684 	int rb_bufsz;
3685 	u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
3686 
3687 	/* allocate ring */
3688 	ret = r600_ih_ring_alloc(rdev);
3689 	if (ret)
3690 		return ret;
3691 
3692 	/* disable irqs */
3693 	r600_disable_interrupts(rdev);
3694 
3695 	/* init rlc */
3696 	if (rdev->family >= CHIP_CEDAR)
3697 		ret = evergreen_rlc_resume(rdev);
3698 	else
3699 		ret = r600_rlc_resume(rdev);
3700 	if (ret) {
3701 		r600_ih_ring_fini(rdev);
3702 		return ret;
3703 	}
3704 
3705 	/* setup interrupt control */
3706 	/* set dummy read address to ring address */
3707 	WREG32(INTERRUPT_CNTL2, rdev->ih.gpu_addr >> 8);
3708 	interrupt_cntl = RREG32(INTERRUPT_CNTL);
3709 	/* IH_DUMMY_RD_OVERRIDE=0 - dummy read disabled with msi, enabled without msi
3710 	 * IH_DUMMY_RD_OVERRIDE=1 - dummy read controlled by IH_DUMMY_RD_EN
3711 	 */
3712 	interrupt_cntl &= ~IH_DUMMY_RD_OVERRIDE;
3713 	/* IH_REQ_NONSNOOP_EN=1 if ring is in non-cacheable memory, e.g., vram */
3714 	interrupt_cntl &= ~IH_REQ_NONSNOOP_EN;
3715 	WREG32(INTERRUPT_CNTL, interrupt_cntl);
3716 
3717 	WREG32(IH_RB_BASE, rdev->ih.gpu_addr >> 8);
3718 	rb_bufsz = order_base_2(rdev->ih.ring_size / 4);
3719 
3720 	ih_rb_cntl = (IH_WPTR_OVERFLOW_ENABLE |
3721 		      IH_WPTR_OVERFLOW_CLEAR |
3722 		      (rb_bufsz << 1));
3723 
3724 	if (rdev->wb.enabled)
3725 		ih_rb_cntl |= IH_WPTR_WRITEBACK_ENABLE;
3726 
3727 	/* set the writeback address whether it's enabled or not */
3728 	WREG32(IH_RB_WPTR_ADDR_LO, (rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFFFFFFFC);
3729 	WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(rdev->wb.gpu_addr + R600_WB_IH_WPTR_OFFSET) & 0xFF);
3730 
3731 	WREG32(IH_RB_CNTL, ih_rb_cntl);
3732 
3733 	/* set rptr, wptr to 0 */
3734 	WREG32(IH_RB_RPTR, 0);
3735 	WREG32(IH_RB_WPTR, 0);
3736 
3737 	/* Default settings for IH_CNTL (disabled at first) */
3738 	ih_cntl = MC_WRREQ_CREDIT(0x10) | MC_WR_CLEAN_CNT(0x10);
3739 	/* RPTR_REARM only works if msi's are enabled */
3740 	if (rdev->msi_enabled)
3741 		ih_cntl |= RPTR_REARM;
3742 	WREG32(IH_CNTL, ih_cntl);
3743 
3744 	/* force the active interrupt state to all disabled */
3745 	if (rdev->family >= CHIP_CEDAR)
3746 		evergreen_disable_interrupt_state(rdev);
3747 	else
3748 		r600_disable_interrupt_state(rdev);
3749 
3750 	/* at this point everything should be setup correctly to enable master */
3751 	pci_set_master(rdev->pdev);
3752 
3753 	/* enable irqs */
3754 	r600_enable_interrupts(rdev);
3755 
3756 	return ret;
3757 }
3758 
3759 void r600_irq_suspend(struct radeon_device *rdev)
3760 {
3761 	r600_irq_disable(rdev);
3762 	r600_rlc_stop(rdev);
3763 }
3764 
3765 void r600_irq_fini(struct radeon_device *rdev)
3766 {
3767 	r600_irq_suspend(rdev);
3768 	r600_ih_ring_fini(rdev);
3769 }
3770 
3771 int r600_irq_set(struct radeon_device *rdev)
3772 {
3773 	u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
3774 	u32 mode_int = 0;
3775 	u32 hpd1, hpd2, hpd3, hpd4 = 0, hpd5 = 0, hpd6 = 0;
3776 	u32 grbm_int_cntl = 0;
3777 	u32 hdmi0, hdmi1;
3778 	u32 dma_cntl;
3779 	u32 thermal_int = 0;
3780 
3781 	if (!rdev->irq.installed) {
3782 		WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
3783 		return -EINVAL;
3784 	}
3785 	/* don't enable anything if the ih is disabled */
3786 	if (!rdev->ih.enabled) {
3787 		r600_disable_interrupts(rdev);
3788 		/* force the active interrupt state to all disabled */
3789 		r600_disable_interrupt_state(rdev);
3790 		return 0;
3791 	}
3792 
3793 	if (ASIC_IS_DCE3(rdev)) {
3794 		hpd1 = RREG32(DC_HPD1_INT_CONTROL) & ~DC_HPDx_INT_EN;
3795 		hpd2 = RREG32(DC_HPD2_INT_CONTROL) & ~DC_HPDx_INT_EN;
3796 		hpd3 = RREG32(DC_HPD3_INT_CONTROL) & ~DC_HPDx_INT_EN;
3797 		hpd4 = RREG32(DC_HPD4_INT_CONTROL) & ~DC_HPDx_INT_EN;
3798 		if (ASIC_IS_DCE32(rdev)) {
3799 			hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
3800 			hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
3801 			hdmi0 = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
3802 			hdmi1 = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
3803 		} else {
3804 			hdmi0 = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3805 			hdmi1 = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3806 		}
3807 	} else {
3808 		hpd1 = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL) & ~DC_HPDx_INT_EN;
3809 		hpd2 = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL) & ~DC_HPDx_INT_EN;
3810 		hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
3811 		hdmi0 = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3812 		hdmi1 = RREG32(HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
3813 	}
3814 
3815 	dma_cntl = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
3816 
3817 	if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
3818 		thermal_int = RREG32(CG_THERMAL_INT) &
3819 			~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
3820 	} else if (rdev->family >= CHIP_RV770) {
3821 		thermal_int = RREG32(RV770_CG_THERMAL_INT) &
3822 			~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
3823 	}
3824 	if (rdev->irq.dpm_thermal) {
3825 		DRM_DEBUG("dpm thermal\n");
3826 		thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
3827 	}
3828 
3829 	if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
3830 		DRM_DEBUG("r600_irq_set: sw int\n");
3831 		cp_int_cntl |= RB_INT_ENABLE;
3832 		cp_int_cntl |= TIME_STAMP_INT_ENABLE;
3833 	}
3834 
3835 	if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
3836 		DRM_DEBUG("r600_irq_set: sw int dma\n");
3837 		dma_cntl |= TRAP_ENABLE;
3838 	}
3839 
3840 	if (rdev->irq.crtc_vblank_int[0] ||
3841 	    atomic_read(&rdev->irq.pflip[0])) {
3842 		DRM_DEBUG("r600_irq_set: vblank 0\n");
3843 		mode_int |= D1MODE_VBLANK_INT_MASK;
3844 	}
3845 	if (rdev->irq.crtc_vblank_int[1] ||
3846 	    atomic_read(&rdev->irq.pflip[1])) {
3847 		DRM_DEBUG("r600_irq_set: vblank 1\n");
3848 		mode_int |= D2MODE_VBLANK_INT_MASK;
3849 	}
3850 	if (rdev->irq.hpd[0]) {
3851 		DRM_DEBUG("r600_irq_set: hpd 1\n");
3852 		hpd1 |= DC_HPDx_INT_EN;
3853 	}
3854 	if (rdev->irq.hpd[1]) {
3855 		DRM_DEBUG("r600_irq_set: hpd 2\n");
3856 		hpd2 |= DC_HPDx_INT_EN;
3857 	}
3858 	if (rdev->irq.hpd[2]) {
3859 		DRM_DEBUG("r600_irq_set: hpd 3\n");
3860 		hpd3 |= DC_HPDx_INT_EN;
3861 	}
3862 	if (rdev->irq.hpd[3]) {
3863 		DRM_DEBUG("r600_irq_set: hpd 4\n");
3864 		hpd4 |= DC_HPDx_INT_EN;
3865 	}
3866 	if (rdev->irq.hpd[4]) {
3867 		DRM_DEBUG("r600_irq_set: hpd 5\n");
3868 		hpd5 |= DC_HPDx_INT_EN;
3869 	}
3870 	if (rdev->irq.hpd[5]) {
3871 		DRM_DEBUG("r600_irq_set: hpd 6\n");
3872 		hpd6 |= DC_HPDx_INT_EN;
3873 	}
3874 	if (rdev->irq.afmt[0]) {
3875 		DRM_DEBUG("r600_irq_set: hdmi 0\n");
3876 		hdmi0 |= HDMI0_AZ_FORMAT_WTRIG_MASK;
3877 	}
3878 	if (rdev->irq.afmt[1]) {
3879 		DRM_DEBUG("r600_irq_set: hdmi 0\n");
3880 		hdmi1 |= HDMI0_AZ_FORMAT_WTRIG_MASK;
3881 	}
3882 
3883 	WREG32(CP_INT_CNTL, cp_int_cntl);
3884 	WREG32(DMA_CNTL, dma_cntl);
3885 	WREG32(DxMODE_INT_MASK, mode_int);
3886 	WREG32(D1GRPH_INTERRUPT_CONTROL, DxGRPH_PFLIP_INT_MASK);
3887 	WREG32(D2GRPH_INTERRUPT_CONTROL, DxGRPH_PFLIP_INT_MASK);
3888 	WREG32(GRBM_INT_CNTL, grbm_int_cntl);
3889 	if (ASIC_IS_DCE3(rdev)) {
3890 		WREG32(DC_HPD1_INT_CONTROL, hpd1);
3891 		WREG32(DC_HPD2_INT_CONTROL, hpd2);
3892 		WREG32(DC_HPD3_INT_CONTROL, hpd3);
3893 		WREG32(DC_HPD4_INT_CONTROL, hpd4);
3894 		if (ASIC_IS_DCE32(rdev)) {
3895 			WREG32(DC_HPD5_INT_CONTROL, hpd5);
3896 			WREG32(DC_HPD6_INT_CONTROL, hpd6);
3897 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, hdmi0);
3898 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, hdmi1);
3899 		} else {
3900 			WREG32(HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
3901 			WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, hdmi1);
3902 		}
3903 	} else {
3904 		WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
3905 		WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
3906 		WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, hpd3);
3907 		WREG32(HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
3908 		WREG32(HDMI1_AUDIO_PACKET_CONTROL, hdmi1);
3909 	}
3910 	if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
3911 		WREG32(CG_THERMAL_INT, thermal_int);
3912 	} else if (rdev->family >= CHIP_RV770) {
3913 		WREG32(RV770_CG_THERMAL_INT, thermal_int);
3914 	}
3915 
3916 	/* posting read */
3917 	RREG32(R_000E50_SRBM_STATUS);
3918 
3919 	return 0;
3920 }
3921 
3922 static void r600_irq_ack(struct radeon_device *rdev)
3923 {
3924 	u32 tmp;
3925 
3926 	if (ASIC_IS_DCE3(rdev)) {
3927 		rdev->irq.stat_regs.r600.disp_int = RREG32(DCE3_DISP_INTERRUPT_STATUS);
3928 		rdev->irq.stat_regs.r600.disp_int_cont = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE);
3929 		rdev->irq.stat_regs.r600.disp_int_cont2 = RREG32(DCE3_DISP_INTERRUPT_STATUS_CONTINUE2);
3930 		if (ASIC_IS_DCE32(rdev)) {
3931 			rdev->irq.stat_regs.r600.hdmi0_status = RREG32(AFMT_STATUS + DCE3_HDMI_OFFSET0);
3932 			rdev->irq.stat_regs.r600.hdmi1_status = RREG32(AFMT_STATUS + DCE3_HDMI_OFFSET1);
3933 		} else {
3934 			rdev->irq.stat_regs.r600.hdmi0_status = RREG32(HDMI0_STATUS);
3935 			rdev->irq.stat_regs.r600.hdmi1_status = RREG32(DCE3_HDMI1_STATUS);
3936 		}
3937 	} else {
3938 		rdev->irq.stat_regs.r600.disp_int = RREG32(DISP_INTERRUPT_STATUS);
3939 		rdev->irq.stat_regs.r600.disp_int_cont = RREG32(DISP_INTERRUPT_STATUS_CONTINUE);
3940 		rdev->irq.stat_regs.r600.disp_int_cont2 = 0;
3941 		rdev->irq.stat_regs.r600.hdmi0_status = RREG32(HDMI0_STATUS);
3942 		rdev->irq.stat_regs.r600.hdmi1_status = RREG32(HDMI1_STATUS);
3943 	}
3944 	rdev->irq.stat_regs.r600.d1grph_int = RREG32(D1GRPH_INTERRUPT_STATUS);
3945 	rdev->irq.stat_regs.r600.d2grph_int = RREG32(D2GRPH_INTERRUPT_STATUS);
3946 
3947 	if (rdev->irq.stat_regs.r600.d1grph_int & DxGRPH_PFLIP_INT_OCCURRED)
3948 		WREG32(D1GRPH_INTERRUPT_STATUS, DxGRPH_PFLIP_INT_CLEAR);
3949 	if (rdev->irq.stat_regs.r600.d2grph_int & DxGRPH_PFLIP_INT_OCCURRED)
3950 		WREG32(D2GRPH_INTERRUPT_STATUS, DxGRPH_PFLIP_INT_CLEAR);
3951 	if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT)
3952 		WREG32(D1MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
3953 	if (rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT)
3954 		WREG32(D1MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
3955 	if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT)
3956 		WREG32(D2MODE_VBLANK_STATUS, DxMODE_VBLANK_ACK);
3957 	if (rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT)
3958 		WREG32(D2MODE_VLINE_STATUS, DxMODE_VLINE_ACK);
3959 	if (rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT) {
3960 		if (ASIC_IS_DCE3(rdev)) {
3961 			tmp = RREG32(DC_HPD1_INT_CONTROL);
3962 			tmp |= DC_HPDx_INT_ACK;
3963 			WREG32(DC_HPD1_INT_CONTROL, tmp);
3964 		} else {
3965 			tmp = RREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL);
3966 			tmp |= DC_HPDx_INT_ACK;
3967 			WREG32(DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
3968 		}
3969 	}
3970 	if (rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT) {
3971 		if (ASIC_IS_DCE3(rdev)) {
3972 			tmp = RREG32(DC_HPD2_INT_CONTROL);
3973 			tmp |= DC_HPDx_INT_ACK;
3974 			WREG32(DC_HPD2_INT_CONTROL, tmp);
3975 		} else {
3976 			tmp = RREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL);
3977 			tmp |= DC_HPDx_INT_ACK;
3978 			WREG32(DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
3979 		}
3980 	}
3981 	if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT) {
3982 		if (ASIC_IS_DCE3(rdev)) {
3983 			tmp = RREG32(DC_HPD3_INT_CONTROL);
3984 			tmp |= DC_HPDx_INT_ACK;
3985 			WREG32(DC_HPD3_INT_CONTROL, tmp);
3986 		} else {
3987 			tmp = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL);
3988 			tmp |= DC_HPDx_INT_ACK;
3989 			WREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL, tmp);
3990 		}
3991 	}
3992 	if (rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT) {
3993 		tmp = RREG32(DC_HPD4_INT_CONTROL);
3994 		tmp |= DC_HPDx_INT_ACK;
3995 		WREG32(DC_HPD4_INT_CONTROL, tmp);
3996 	}
3997 	if (ASIC_IS_DCE32(rdev)) {
3998 		if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT) {
3999 			tmp = RREG32(DC_HPD5_INT_CONTROL);
4000 			tmp |= DC_HPDx_INT_ACK;
4001 			WREG32(DC_HPD5_INT_CONTROL, tmp);
4002 		}
4003 		if (rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT) {
4004 			tmp = RREG32(DC_HPD6_INT_CONTROL);
4005 			tmp |= DC_HPDx_INT_ACK;
4006 			WREG32(DC_HPD6_INT_CONTROL, tmp);
4007 		}
4008 		if (rdev->irq.stat_regs.r600.hdmi0_status & AFMT_AZ_FORMAT_WTRIG) {
4009 			tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0);
4010 			tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
4011 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET0, tmp);
4012 		}
4013 		if (rdev->irq.stat_regs.r600.hdmi1_status & AFMT_AZ_FORMAT_WTRIG) {
4014 			tmp = RREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1);
4015 			tmp |= AFMT_AZ_FORMAT_WTRIG_ACK;
4016 			WREG32(AFMT_AUDIO_PACKET_CONTROL + DCE3_HDMI_OFFSET1, tmp);
4017 		}
4018 	} else {
4019 		if (rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG) {
4020 			tmp = RREG32(HDMI0_AUDIO_PACKET_CONTROL);
4021 			tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
4022 			WREG32(HDMI0_AUDIO_PACKET_CONTROL, tmp);
4023 		}
4024 		if (rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG) {
4025 			if (ASIC_IS_DCE3(rdev)) {
4026 				tmp = RREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL);
4027 				tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
4028 				WREG32(DCE3_HDMI1_AUDIO_PACKET_CONTROL, tmp);
4029 			} else {
4030 				tmp = RREG32(HDMI1_AUDIO_PACKET_CONTROL);
4031 				tmp |= HDMI0_AZ_FORMAT_WTRIG_ACK;
4032 				WREG32(HDMI1_AUDIO_PACKET_CONTROL, tmp);
4033 			}
4034 		}
4035 	}
4036 }
4037 
4038 void r600_irq_disable(struct radeon_device *rdev)
4039 {
4040 	r600_disable_interrupts(rdev);
4041 	/* Wait and acknowledge irq */
4042 	mdelay(1);
4043 	r600_irq_ack(rdev);
4044 	r600_disable_interrupt_state(rdev);
4045 }
4046 
4047 static u32 r600_get_ih_wptr(struct radeon_device *rdev)
4048 {
4049 	u32 wptr, tmp;
4050 
4051 	if (rdev->wb.enabled)
4052 		wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
4053 	else
4054 		wptr = RREG32(IH_RB_WPTR);
4055 
4056 	if (wptr & RB_OVERFLOW) {
4057 		wptr &= ~RB_OVERFLOW;
4058 		/* When a ring buffer overflow happen start parsing interrupt
4059 		 * from the last not overwritten vector (wptr + 16). Hopefully
4060 		 * this should allow us to catchup.
4061 		 */
4062 		dev_warn(rdev->dev, "IH ring buffer overflow (0x%08X, 0x%08X, 0x%08X)\n",
4063 			 wptr, rdev->ih.rptr, (wptr + 16) & rdev->ih.ptr_mask);
4064 		rdev->ih.rptr = (wptr + 16) & rdev->ih.ptr_mask;
4065 		tmp = RREG32(IH_RB_CNTL);
4066 		tmp |= IH_WPTR_OVERFLOW_CLEAR;
4067 		WREG32(IH_RB_CNTL, tmp);
4068 	}
4069 	return (wptr & rdev->ih.ptr_mask);
4070 }
4071 
4072 /*        r600 IV Ring
4073  * Each IV ring entry is 128 bits:
4074  * [7:0]    - interrupt source id
4075  * [31:8]   - reserved
4076  * [59:32]  - interrupt source data
4077  * [127:60]  - reserved
4078  *
4079  * The basic interrupt vector entries
4080  * are decoded as follows:
4081  * src_id  src_data  description
4082  *      1         0  D1 Vblank
4083  *      1         1  D1 Vline
4084  *      5         0  D2 Vblank
4085  *      5         1  D2 Vline
4086  *     19         0  FP Hot plug detection A
4087  *     19         1  FP Hot plug detection B
4088  *     19         2  DAC A auto-detection
4089  *     19         3  DAC B auto-detection
4090  *     21         4  HDMI block A
4091  *     21         5  HDMI block B
4092  *    176         -  CP_INT RB
4093  *    177         -  CP_INT IB1
4094  *    178         -  CP_INT IB2
4095  *    181         -  EOP Interrupt
4096  *    233         -  GUI Idle
4097  *
4098  * Note, these are based on r600 and may need to be
4099  * adjusted or added to on newer asics
4100  */
4101 
4102 irqreturn_t r600_irq_process(struct radeon_device *rdev)
4103 {
4104 	u32 wptr;
4105 	u32 rptr;
4106 	u32 src_id, src_data;
4107 	u32 ring_index;
4108 	bool queue_hotplug = false;
4109 	bool queue_hdmi = false;
4110 	bool queue_thermal = false;
4111 
4112 	if (!rdev->ih.enabled || rdev->shutdown)
4113 		return IRQ_NONE;
4114 
4115 	/* No MSIs, need a dummy read to flush PCI DMAs */
4116 	if (!rdev->msi_enabled)
4117 		RREG32(IH_RB_WPTR);
4118 
4119 	wptr = r600_get_ih_wptr(rdev);
4120 
4121 restart_ih:
4122 	/* is somebody else already processing irqs? */
4123 	if (atomic_xchg(&rdev->ih.lock, 1))
4124 		return IRQ_NONE;
4125 
4126 	rptr = rdev->ih.rptr;
4127 	DRM_DEBUG_VBLANK("r600_irq_process start: rptr %d, wptr %d\n", rptr, wptr);
4128 
4129 	/* Order reading of wptr vs. reading of IH ring data */
4130 	rmb();
4131 
4132 	/* display interrupts */
4133 	r600_irq_ack(rdev);
4134 
4135 	while (rptr != wptr) {
4136 		/* wptr/rptr are in bytes! */
4137 		ring_index = rptr / 4;
4138 		src_id = le32_to_cpu(rdev->ih.ring[ring_index]) & 0xff;
4139 		src_data = le32_to_cpu(rdev->ih.ring[ring_index + 1]) & 0xfffffff;
4140 
4141 		switch (src_id) {
4142 		case 1: /* D1 vblank/vline */
4143 			switch (src_data) {
4144 			case 0: /* D1 vblank */
4145 				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VBLANK_INTERRUPT))
4146 					DRM_DEBUG("IH: D1 vblank - IH event w/o asserted irq bit?\n");
4147 
4148 				if (rdev->irq.crtc_vblank_int[0]) {
4149 					drm_handle_vblank(rdev->ddev, 0);
4150 					rdev->pm.vblank_sync = true;
4151 					wake_up(&rdev->irq.vblank_queue);
4152 				}
4153 				if (atomic_read(&rdev->irq.pflip[0]))
4154 					radeon_crtc_handle_vblank(rdev, 0);
4155 				rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VBLANK_INTERRUPT;
4156 				DRM_DEBUG_VBLANK("IH: D1 vblank\n");
4157 
4158 				break;
4159 			case 1: /* D1 vline */
4160 				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D1_VLINE_INTERRUPT))
4161 				    DRM_DEBUG("IH: D1 vline - IH event w/o asserted irq bit?\n");
4162 
4163 				rdev->irq.stat_regs.r600.disp_int &= ~LB_D1_VLINE_INTERRUPT;
4164 				DRM_DEBUG_VBLANK("IH: D1 vline\n");
4165 
4166 				break;
4167 			default:
4168 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
4169 				break;
4170 			}
4171 			break;
4172 		case 5: /* D2 vblank/vline */
4173 			switch (src_data) {
4174 			case 0: /* D2 vblank */
4175 				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VBLANK_INTERRUPT))
4176 					DRM_DEBUG("IH: D2 vblank - IH event w/o asserted irq bit?\n");
4177 
4178 				if (rdev->irq.crtc_vblank_int[1]) {
4179 					drm_handle_vblank(rdev->ddev, 1);
4180 					rdev->pm.vblank_sync = true;
4181 					wake_up(&rdev->irq.vblank_queue);
4182 				}
4183 				if (atomic_read(&rdev->irq.pflip[1]))
4184 					radeon_crtc_handle_vblank(rdev, 1);
4185 				rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VBLANK_INTERRUPT;
4186 				DRM_DEBUG_VBLANK("IH: D2 vblank\n");
4187 
4188 				break;
4189 			case 1: /* D1 vline */
4190 				if (!(rdev->irq.stat_regs.r600.disp_int & LB_D2_VLINE_INTERRUPT))
4191 					DRM_DEBUG("IH: D2 vline - IH event w/o asserted irq bit?\n");
4192 
4193 				rdev->irq.stat_regs.r600.disp_int &= ~LB_D2_VLINE_INTERRUPT;
4194 				DRM_DEBUG_VBLANK("IH: D2 vline\n");
4195 
4196 				break;
4197 			default:
4198 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
4199 				break;
4200 			}
4201 			break;
4202 		case 9: /* D1 pflip */
4203 			DRM_DEBUG_VBLANK("IH: D1 flip\n");
4204 			if (radeon_use_pflipirq > 0)
4205 				radeon_crtc_handle_flip(rdev, 0);
4206 			break;
4207 		case 11: /* D2 pflip */
4208 			DRM_DEBUG_VBLANK("IH: D2 flip\n");
4209 			if (radeon_use_pflipirq > 0)
4210 				radeon_crtc_handle_flip(rdev, 1);
4211 			break;
4212 		case 19: /* HPD/DAC hotplug */
4213 			switch (src_data) {
4214 			case 0:
4215 				if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD1_INTERRUPT))
4216 					DRM_DEBUG("IH: HPD1 - IH event w/o asserted irq bit?\n");
4217 
4218 				rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD1_INTERRUPT;
4219 				queue_hotplug = true;
4220 				DRM_DEBUG("IH: HPD1\n");
4221 				break;
4222 			case 1:
4223 				if (!(rdev->irq.stat_regs.r600.disp_int & DC_HPD2_INTERRUPT))
4224 					DRM_DEBUG("IH: HPD2 - IH event w/o asserted irq bit?\n");
4225 
4226 				rdev->irq.stat_regs.r600.disp_int &= ~DC_HPD2_INTERRUPT;
4227 				queue_hotplug = true;
4228 				DRM_DEBUG("IH: HPD2\n");
4229 				break;
4230 			case 4:
4231 				if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD3_INTERRUPT))
4232 					DRM_DEBUG("IH: HPD3 - IH event w/o asserted irq bit?\n");
4233 
4234 				rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD3_INTERRUPT;
4235 				queue_hotplug = true;
4236 				DRM_DEBUG("IH: HPD3\n");
4237 				break;
4238 			case 5:
4239 				if (!(rdev->irq.stat_regs.r600.disp_int_cont & DC_HPD4_INTERRUPT))
4240 					DRM_DEBUG("IH: HPD4 - IH event w/o asserted irq bit?\n");
4241 
4242 				rdev->irq.stat_regs.r600.disp_int_cont &= ~DC_HPD4_INTERRUPT;
4243 				queue_hotplug = true;
4244 				DRM_DEBUG("IH: HPD4\n");
4245 				break;
4246 			case 10:
4247 				if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD5_INTERRUPT))
4248 					DRM_DEBUG("IH: HPD5 - IH event w/o asserted irq bit?\n");
4249 
4250 				rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD5_INTERRUPT;
4251 				queue_hotplug = true;
4252 				DRM_DEBUG("IH: HPD5\n");
4253 				break;
4254 			case 12:
4255 				if (!(rdev->irq.stat_regs.r600.disp_int_cont2 & DC_HPD6_INTERRUPT))
4256 					DRM_DEBUG("IH: HPD6 - IH event w/o asserted irq bit?\n");
4257 
4258 				rdev->irq.stat_regs.r600.disp_int_cont2 &= ~DC_HPD6_INTERRUPT;
4259 				queue_hotplug = true;
4260 				DRM_DEBUG("IH: HPD6\n");
4261 
4262 				break;
4263 			default:
4264 				DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
4265 				break;
4266 			}
4267 			break;
4268 		case 21: /* hdmi */
4269 			switch (src_data) {
4270 			case 4:
4271 				if (!(rdev->irq.stat_regs.r600.hdmi0_status & HDMI0_AZ_FORMAT_WTRIG))
4272 					DRM_DEBUG("IH: HDMI0 - IH event w/o asserted irq bit?\n");
4273 
4274 				rdev->irq.stat_regs.r600.hdmi0_status &= ~HDMI0_AZ_FORMAT_WTRIG;
4275 				queue_hdmi = true;
4276 				DRM_DEBUG("IH: HDMI0\n");
4277 
4278 				break;
4279 			case 5:
4280 				if (!(rdev->irq.stat_regs.r600.hdmi1_status & HDMI0_AZ_FORMAT_WTRIG))
4281 					DRM_DEBUG("IH: HDMI1 - IH event w/o asserted irq bit?\n");
4282 
4283 				rdev->irq.stat_regs.r600.hdmi1_status &= ~HDMI0_AZ_FORMAT_WTRIG;
4284 				queue_hdmi = true;
4285 				DRM_DEBUG("IH: HDMI1\n");
4286 
4287 				break;
4288 			default:
4289 				DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
4290 				break;
4291 			}
4292 			break;
4293 		case 124: /* UVD */
4294 			DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
4295 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
4296 			break;
4297 		case 176: /* CP_INT in ring buffer */
4298 		case 177: /* CP_INT in IB1 */
4299 		case 178: /* CP_INT in IB2 */
4300 			DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
4301 			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
4302 			break;
4303 		case 181: /* CP EOP event */
4304 			DRM_DEBUG("IH: CP EOP\n");
4305 			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
4306 			break;
4307 		case 224: /* DMA trap event */
4308 			DRM_DEBUG("IH: DMA trap\n");
4309 			radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
4310 			break;
4311 		case 230: /* thermal low to high */
4312 			DRM_DEBUG("IH: thermal low to high\n");
4313 			rdev->pm.dpm.thermal.high_to_low = false;
4314 			queue_thermal = true;
4315 			break;
4316 		case 231: /* thermal high to low */
4317 			DRM_DEBUG("IH: thermal high to low\n");
4318 			rdev->pm.dpm.thermal.high_to_low = true;
4319 			queue_thermal = true;
4320 			break;
4321 		case 233: /* GUI IDLE */
4322 			DRM_DEBUG("IH: GUI idle\n");
4323 			break;
4324 		default:
4325 			DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
4326 			break;
4327 		}
4328 
4329 		/* wptr/rptr are in bytes! */
4330 		rptr += 16;
4331 		rptr &= rdev->ih.ptr_mask;
4332 		WREG32(IH_RB_RPTR, rptr);
4333 	}
4334 	if (queue_hotplug)
4335 		schedule_delayed_work(&rdev->hotplug_work, 0);
4336 	if (queue_hdmi)
4337 		schedule_work(&rdev->audio_work);
4338 	if (queue_thermal && rdev->pm.dpm_enabled)
4339 		schedule_work(&rdev->pm.dpm.thermal.work);
4340 	rdev->ih.rptr = rptr;
4341 	atomic_set(&rdev->ih.lock, 0);
4342 
4343 	/* make sure wptr hasn't changed while processing */
4344 	wptr = r600_get_ih_wptr(rdev);
4345 	if (wptr != rptr)
4346 		goto restart_ih;
4347 
4348 	return IRQ_HANDLED;
4349 }
4350 
4351 /*
4352  * Debugfs info
4353  */
4354 #if defined(CONFIG_DEBUG_FS)
4355 
4356 static int r600_debugfs_mc_info(struct seq_file *m, void *data)
4357 {
4358 	struct drm_info_node *node = (struct drm_info_node *) m->private;
4359 	struct drm_device *dev = node->minor->dev;
4360 	struct radeon_device *rdev = dev->dev_private;
4361 
4362 	DREG32_SYS(m, rdev, R_000E50_SRBM_STATUS);
4363 	DREG32_SYS(m, rdev, VM_L2_STATUS);
4364 	return 0;
4365 }
4366 
4367 static struct drm_info_list r600_mc_info_list[] = {
4368 	{"r600_mc_info", r600_debugfs_mc_info, 0, NULL},
4369 };
4370 #endif
4371 
4372 int r600_debugfs_mc_info_init(struct radeon_device *rdev)
4373 {
4374 #if defined(CONFIG_DEBUG_FS)
4375 	return radeon_debugfs_add_files(rdev, r600_mc_info_list, ARRAY_SIZE(r600_mc_info_list));
4376 #else
4377 	return 0;
4378 #endif
4379 }
4380 
4381 /**
4382  * r600_mmio_hdp_flush - flush Host Data Path cache via MMIO
4383  * rdev: radeon device structure
4384  *
4385  * Some R6XX/R7XX don't seem to take into account HDP flushes performed
4386  * through the ring buffer. This leads to corruption in rendering, see
4387  * http://bugzilla.kernel.org/show_bug.cgi?id=15186 . To avoid this, we
4388  * directly perform the HDP flush by writing the register through MMIO.
4389  */
4390 void r600_mmio_hdp_flush(struct radeon_device *rdev)
4391 {
4392 	/* r7xx hw bug.  write to HDP_DEBUG1 followed by fb read
4393 	 * rather than write to HDP_REG_COHERENCY_FLUSH_CNTL.
4394 	 * This seems to cause problems on some AGP cards. Just use the old
4395 	 * method for them.
4396 	 */
4397 	if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740) &&
4398 	    rdev->vram_scratch.ptr && !(rdev->flags & RADEON_IS_AGP)) {
4399 		volatile void __iomem *ptr = (volatile void *)rdev->vram_scratch.ptr;
4400 		u32 tmp;
4401 
4402 		WREG32(HDP_DEBUG1, 0);
4403 		tmp = readl((volatile void __iomem *)ptr);
4404 	} else
4405 		WREG32(R_005480_HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
4406 }
4407 
4408 void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes)
4409 {
4410 	u32 link_width_cntl, mask;
4411 
4412 	if (rdev->flags & RADEON_IS_IGP)
4413 		return;
4414 
4415 	if (!(rdev->flags & RADEON_IS_PCIE))
4416 		return;
4417 
4418 	/* x2 cards have a special sequence */
4419 	if (ASIC_IS_X2(rdev))
4420 		return;
4421 
4422 	radeon_gui_idle(rdev);
4423 
4424 	switch (lanes) {
4425 	case 0:
4426 		mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
4427 		break;
4428 	case 1:
4429 		mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
4430 		break;
4431 	case 2:
4432 		mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
4433 		break;
4434 	case 4:
4435 		mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
4436 		break;
4437 	case 8:
4438 		mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
4439 		break;
4440 	case 12:
4441 		/* not actually supported */
4442 		mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
4443 		break;
4444 	case 16:
4445 		mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
4446 		break;
4447 	default:
4448 		DRM_ERROR("invalid pcie lane request: %d\n", lanes);
4449 		return;
4450 	}
4451 
4452 	link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
4453 	link_width_cntl &= ~RADEON_PCIE_LC_LINK_WIDTH_MASK;
4454 	link_width_cntl |= mask << RADEON_PCIE_LC_LINK_WIDTH_SHIFT;
4455 	link_width_cntl |= (RADEON_PCIE_LC_RECONFIG_NOW |
4456 			    R600_PCIE_LC_RECONFIG_ARC_MISSING_ESCAPE);
4457 
4458 	WREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4459 }
4460 
4461 int r600_get_pcie_lanes(struct radeon_device *rdev)
4462 {
4463 	u32 link_width_cntl;
4464 
4465 	if (rdev->flags & RADEON_IS_IGP)
4466 		return 0;
4467 
4468 	if (!(rdev->flags & RADEON_IS_PCIE))
4469 		return 0;
4470 
4471 	/* x2 cards have a special sequence */
4472 	if (ASIC_IS_X2(rdev))
4473 		return 0;
4474 
4475 	radeon_gui_idle(rdev);
4476 
4477 	link_width_cntl = RREG32_PCIE_PORT(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
4478 
4479 	switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) {
4480 	case RADEON_PCIE_LC_LINK_WIDTH_X1:
4481 		return 1;
4482 	case RADEON_PCIE_LC_LINK_WIDTH_X2:
4483 		return 2;
4484 	case RADEON_PCIE_LC_LINK_WIDTH_X4:
4485 		return 4;
4486 	case RADEON_PCIE_LC_LINK_WIDTH_X8:
4487 		return 8;
4488 	case RADEON_PCIE_LC_LINK_WIDTH_X12:
4489 		/* not actually supported */
4490 		return 12;
4491 	case RADEON_PCIE_LC_LINK_WIDTH_X0:
4492 	case RADEON_PCIE_LC_LINK_WIDTH_X16:
4493 	default:
4494 		return 16;
4495 	}
4496 }
4497 
4498 static void r600_pcie_gen2_enable(struct radeon_device *rdev)
4499 {
4500 	u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp;
4501 	u16 link_cntl2;
4502 	u32 mask;
4503 
4504 	if (radeon_pcie_gen2 == 0)
4505 		return;
4506 
4507 	if (rdev->flags & RADEON_IS_IGP)
4508 		return;
4509 
4510 	if (!(rdev->flags & RADEON_IS_PCIE))
4511 		return;
4512 
4513 	/* x2 cards have a special sequence */
4514 	if (ASIC_IS_X2(rdev))
4515 		return;
4516 
4517 	/* only RV6xx+ chips are supported */
4518 	if (rdev->family <= CHIP_R600)
4519 		return;
4520 
4521 #ifdef __DragonFly__
4522 	if (drm_pcie_get_speed_cap_mask(rdev->ddev, &mask) != 0)
4523 		return;
4524 #endif
4525 
4526 	if (!(mask & DRM_PCIE_SPEED_50))
4527 		return;
4528 
4529 	speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4530 	if (speed_cntl & LC_CURRENT_DATA_RATE) {
4531 		DRM_INFO("PCIE gen 2 link speeds already enabled\n");
4532 		return;
4533 	}
4534 
4535 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
4536 
4537 	/* 55 nm r6xx asics */
4538 	if ((rdev->family == CHIP_RV670) ||
4539 	    (rdev->family == CHIP_RV620) ||
4540 	    (rdev->family == CHIP_RV635)) {
4541 		/* advertise upconfig capability */
4542 		link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4543 		link_width_cntl &= ~LC_UPCONFIGURE_DIS;
4544 		WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4545 		link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4546 		if (link_width_cntl & LC_RENEGOTIATION_SUPPORT) {
4547 			lanes = (link_width_cntl & LC_LINK_WIDTH_RD_MASK) >> LC_LINK_WIDTH_RD_SHIFT;
4548 			link_width_cntl &= ~(LC_LINK_WIDTH_MASK |
4549 					     LC_RECONFIG_ARC_MISSING_ESCAPE);
4550 			link_width_cntl |= lanes | LC_RECONFIG_NOW | LC_RENEGOTIATE_EN;
4551 			WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4552 		} else {
4553 			link_width_cntl |= LC_UPCONFIGURE_DIS;
4554 			WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4555 		}
4556 	}
4557 
4558 	speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4559 	if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
4560 	    (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
4561 
4562 		/* 55 nm r6xx asics */
4563 		if ((rdev->family == CHIP_RV670) ||
4564 		    (rdev->family == CHIP_RV620) ||
4565 		    (rdev->family == CHIP_RV635)) {
4566 			WREG32(MM_CFGREGS_CNTL, 0x8);
4567 			link_cntl2 = RREG32(0x4088);
4568 			WREG32(MM_CFGREGS_CNTL, 0);
4569 			/* not supported yet */
4570 			if (link_cntl2 & SELECTABLE_DEEMPHASIS)
4571 				return;
4572 		}
4573 
4574 		speed_cntl &= ~LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_MASK;
4575 		speed_cntl |= (0x3 << LC_SPEED_CHANGE_ATTEMPTS_ALLOWED_SHIFT);
4576 		speed_cntl &= ~LC_VOLTAGE_TIMER_SEL_MASK;
4577 		speed_cntl &= ~LC_FORCE_DIS_HW_SPEED_CHANGE;
4578 		speed_cntl |= LC_FORCE_EN_HW_SPEED_CHANGE;
4579 		WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4580 
4581 		tmp = RREG32(0x541c);
4582 		WREG32(0x541c, tmp | 0x8);
4583 		WREG32(MM_CFGREGS_CNTL, MM_WR_TO_CFG_EN);
4584 		link_cntl2 = RREG16(0x4088);
4585 		link_cntl2 &= ~TARGET_LINK_SPEED_MASK;
4586 		link_cntl2 |= 0x2;
4587 		WREG16(0x4088, link_cntl2);
4588 		WREG32(MM_CFGREGS_CNTL, 0);
4589 
4590 		if ((rdev->family == CHIP_RV670) ||
4591 		    (rdev->family == CHIP_RV620) ||
4592 		    (rdev->family == CHIP_RV635)) {
4593 			training_cntl = RREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL);
4594 			training_cntl &= ~LC_POINT_7_PLUS_EN;
4595 			WREG32_PCIE_PORT(PCIE_LC_TRAINING_CNTL, training_cntl);
4596 		} else {
4597 			speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4598 			speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
4599 			WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4600 		}
4601 
4602 		speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
4603 		speed_cntl |= LC_GEN2_EN_STRAP;
4604 		WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, speed_cntl);
4605 
4606 	} else {
4607 		link_width_cntl = RREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL);
4608 		/* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
4609 		if (1)
4610 			link_width_cntl |= LC_UPCONFIGURE_DIS;
4611 		else
4612 			link_width_cntl &= ~LC_UPCONFIGURE_DIS;
4613 		WREG32_PCIE_PORT(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
4614 	}
4615 }
4616 
4617 /**
4618  * r600_get_gpu_clock_counter - return GPU clock counter snapshot
4619  *
4620  * @rdev: radeon_device pointer
4621  *
4622  * Fetches a GPU clock counter snapshot (R6xx-cayman).
4623  * Returns the 64 bit clock counter snapshot.
4624  */
4625 uint64_t r600_get_gpu_clock_counter(struct radeon_device *rdev)
4626 {
4627 	uint64_t clock;
4628 
4629 	mutex_lock(&rdev->gpu_clock_mutex);
4630 	WREG32(RLC_CAPTURE_GPU_CLOCK_COUNT, 1);
4631 	clock = (uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_LSB) |
4632 		((uint64_t)RREG32(RLC_GPU_CLOCK_COUNT_MSB) << 32ULL);
4633 	mutex_unlock(&rdev->gpu_clock_mutex);
4634 	return clock;
4635 }
4636