xref: /openbmc/linux/drivers/gpu/drm/radeon/rs600.c (revision d2999e1b)
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 /* RS600 / Radeon X1250/X1270 integrated GPU
29  *
30  * This file gather function specific to RS600 which is the IGP of
31  * the X1250/X1270 family supporting intel CPU (while RS690/RS740
32  * is the X1250/X1270 supporting AMD CPU). The display engine are
33  * the avivo one, bios is an atombios, 3D block are the one of the
34  * R4XX family. The GART is different from the RS400 one and is very
35  * close to the one of the R600 family (R600 likely being an evolution
36  * of the RS600 GART block).
37  */
38 #include <drm/drmP.h>
39 #include "radeon.h"
40 #include "radeon_asic.h"
41 #include "atom.h"
42 #include "rs600d.h"
43 
44 #include "rs600_reg_safe.h"
45 
46 static void rs600_gpu_init(struct radeon_device *rdev);
47 int rs600_mc_wait_for_idle(struct radeon_device *rdev);
48 
49 static const u32 crtc_offsets[2] =
50 {
51 	0,
52 	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
53 };
54 
55 static bool avivo_is_in_vblank(struct radeon_device *rdev, int crtc)
56 {
57 	if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
58 		return true;
59 	else
60 		return false;
61 }
62 
63 static bool avivo_is_counter_moving(struct radeon_device *rdev, int crtc)
64 {
65 	u32 pos1, pos2;
66 
67 	pos1 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
68 	pos2 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
69 
70 	if (pos1 != pos2)
71 		return true;
72 	else
73 		return false;
74 }
75 
76 /**
77  * avivo_wait_for_vblank - vblank wait asic callback.
78  *
79  * @rdev: radeon_device pointer
80  * @crtc: crtc to wait for vblank on
81  *
82  * Wait for vblank on the requested crtc (r5xx-r7xx).
83  */
84 void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
85 {
86 	unsigned i = 0;
87 
88 	if (crtc >= rdev->num_crtc)
89 		return;
90 
91 	if (!(RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN))
92 		return;
93 
94 	/* depending on when we hit vblank, we may be close to active; if so,
95 	 * wait for another frame.
96 	 */
97 	while (avivo_is_in_vblank(rdev, crtc)) {
98 		if (i++ % 100 == 0) {
99 			if (!avivo_is_counter_moving(rdev, crtc))
100 				break;
101 		}
102 	}
103 
104 	while (!avivo_is_in_vblank(rdev, crtc)) {
105 		if (i++ % 100 == 0) {
106 			if (!avivo_is_counter_moving(rdev, crtc))
107 				break;
108 		}
109 	}
110 }
111 
112 void rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
113 {
114 	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
115 	u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
116 	int i;
117 
118 	/* Lock the graphics update lock */
119 	tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
120 	WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
121 
122 	/* update the scanout addresses */
123 	WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
124 	       (u32)crtc_base);
125 	WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
126 	       (u32)crtc_base);
127 
128 	/* Wait for update_pending to go high. */
129 	for (i = 0; i < rdev->usec_timeout; i++) {
130 		if (RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING)
131 			break;
132 		udelay(1);
133 	}
134 	DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
135 
136 	/* Unlock the lock, so double-buffering can take place inside vblank */
137 	tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
138 	WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
139 }
140 
141 bool rs600_page_flip_pending(struct radeon_device *rdev, int crtc_id)
142 {
143 	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
144 
145 	/* Return current update_pending status: */
146 	return !!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) &
147 		AVIVO_D1GRPH_SURFACE_UPDATE_PENDING);
148 }
149 
150 void avivo_program_fmt(struct drm_encoder *encoder)
151 {
152 	struct drm_device *dev = encoder->dev;
153 	struct radeon_device *rdev = dev->dev_private;
154 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
155 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
156 	int bpc = 0;
157 	u32 tmp = 0;
158 	enum radeon_connector_dither dither = RADEON_FMT_DITHER_DISABLE;
159 
160 	if (connector) {
161 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
162 		bpc = radeon_get_monitor_bpc(connector);
163 		dither = radeon_connector->dither;
164 	}
165 
166 	/* LVDS FMT is set up by atom */
167 	if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
168 		return;
169 
170 	if (bpc == 0)
171 		return;
172 
173 	switch (bpc) {
174 	case 6:
175 		if (dither == RADEON_FMT_DITHER_ENABLE)
176 			/* XXX sort out optimal dither settings */
177 			tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN;
178 		else
179 			tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN;
180 		break;
181 	case 8:
182 		if (dither == RADEON_FMT_DITHER_ENABLE)
183 			/* XXX sort out optimal dither settings */
184 			tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN |
185 				AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_DEPTH);
186 		else
187 			tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN |
188 				AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_DEPTH);
189 		break;
190 	case 10:
191 	default:
192 		/* not needed */
193 		break;
194 	}
195 
196 	switch (radeon_encoder->encoder_id) {
197 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
198 		WREG32(AVIVO_TMDSA_BIT_DEPTH_CONTROL, tmp);
199 		break;
200 	case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
201 		WREG32(AVIVO_LVTMA_BIT_DEPTH_CONTROL, tmp);
202 		break;
203 	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
204 		WREG32(AVIVO_DVOA_BIT_DEPTH_CONTROL, tmp);
205 		break;
206 	case ENCODER_OBJECT_ID_INTERNAL_DDI:
207 		WREG32(AVIVO_DDIA_BIT_DEPTH_CONTROL, tmp);
208 		break;
209 	default:
210 		break;
211 	}
212 }
213 
214 void rs600_pm_misc(struct radeon_device *rdev)
215 {
216 	int requested_index = rdev->pm.requested_power_state_index;
217 	struct radeon_power_state *ps = &rdev->pm.power_state[requested_index];
218 	struct radeon_voltage *voltage = &ps->clock_info[0].voltage;
219 	u32 tmp, dyn_pwrmgt_sclk_length, dyn_sclk_vol_cntl;
220 	u32 hdp_dyn_cntl, /*mc_host_dyn_cntl,*/ dyn_backbias_cntl;
221 
222 	if ((voltage->type == VOLTAGE_GPIO) && (voltage->gpio.valid)) {
223 		if (ps->misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) {
224 			tmp = RREG32(voltage->gpio.reg);
225 			if (voltage->active_high)
226 				tmp |= voltage->gpio.mask;
227 			else
228 				tmp &= ~(voltage->gpio.mask);
229 			WREG32(voltage->gpio.reg, tmp);
230 			if (voltage->delay)
231 				udelay(voltage->delay);
232 		} else {
233 			tmp = RREG32(voltage->gpio.reg);
234 			if (voltage->active_high)
235 				tmp &= ~voltage->gpio.mask;
236 			else
237 				tmp |= voltage->gpio.mask;
238 			WREG32(voltage->gpio.reg, tmp);
239 			if (voltage->delay)
240 				udelay(voltage->delay);
241 		}
242 	} else if (voltage->type == VOLTAGE_VDDC)
243 		radeon_atom_set_voltage(rdev, voltage->vddc_id, SET_VOLTAGE_TYPE_ASIC_VDDC);
244 
245 	dyn_pwrmgt_sclk_length = RREG32_PLL(DYN_PWRMGT_SCLK_LENGTH);
246 	dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_HILEN(0xf);
247 	dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_LOLEN(0xf);
248 	if (ps->misc & ATOM_PM_MISCINFO_ASIC_REDUCED_SPEED_SCLK_EN) {
249 		if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_2) {
250 			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(2);
251 			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(2);
252 		} else if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_4) {
253 			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(4);
254 			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(4);
255 		}
256 	} else {
257 		dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(1);
258 		dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(1);
259 	}
260 	WREG32_PLL(DYN_PWRMGT_SCLK_LENGTH, dyn_pwrmgt_sclk_length);
261 
262 	dyn_sclk_vol_cntl = RREG32_PLL(DYN_SCLK_VOL_CNTL);
263 	if (ps->misc & ATOM_PM_MISCINFO_ASIC_DYNAMIC_VOLTAGE_EN) {
264 		dyn_sclk_vol_cntl |= IO_CG_VOLTAGE_DROP;
265 		if (voltage->delay) {
266 			dyn_sclk_vol_cntl |= VOLTAGE_DROP_SYNC;
267 			dyn_sclk_vol_cntl |= VOLTAGE_DELAY_SEL(voltage->delay);
268 		} else
269 			dyn_sclk_vol_cntl &= ~VOLTAGE_DROP_SYNC;
270 	} else
271 		dyn_sclk_vol_cntl &= ~IO_CG_VOLTAGE_DROP;
272 	WREG32_PLL(DYN_SCLK_VOL_CNTL, dyn_sclk_vol_cntl);
273 
274 	hdp_dyn_cntl = RREG32_PLL(HDP_DYN_CNTL);
275 	if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_HDP_BLOCK_EN)
276 		hdp_dyn_cntl &= ~HDP_FORCEON;
277 	else
278 		hdp_dyn_cntl |= HDP_FORCEON;
279 	WREG32_PLL(HDP_DYN_CNTL, hdp_dyn_cntl);
280 #if 0
281 	/* mc_host_dyn seems to cause hangs from time to time */
282 	mc_host_dyn_cntl = RREG32_PLL(MC_HOST_DYN_CNTL);
283 	if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_MC_HOST_BLOCK_EN)
284 		mc_host_dyn_cntl &= ~MC_HOST_FORCEON;
285 	else
286 		mc_host_dyn_cntl |= MC_HOST_FORCEON;
287 	WREG32_PLL(MC_HOST_DYN_CNTL, mc_host_dyn_cntl);
288 #endif
289 	dyn_backbias_cntl = RREG32_PLL(DYN_BACKBIAS_CNTL);
290 	if (ps->misc & ATOM_PM_MISCINFO2_DYNAMIC_BACK_BIAS_EN)
291 		dyn_backbias_cntl |= IO_CG_BACKBIAS_EN;
292 	else
293 		dyn_backbias_cntl &= ~IO_CG_BACKBIAS_EN;
294 	WREG32_PLL(DYN_BACKBIAS_CNTL, dyn_backbias_cntl);
295 
296 	/* set pcie lanes */
297 	if ((rdev->flags & RADEON_IS_PCIE) &&
298 	    !(rdev->flags & RADEON_IS_IGP) &&
299 	    rdev->asic->pm.set_pcie_lanes &&
300 	    (ps->pcie_lanes !=
301 	     rdev->pm.power_state[rdev->pm.current_power_state_index].pcie_lanes)) {
302 		radeon_set_pcie_lanes(rdev,
303 				      ps->pcie_lanes);
304 		DRM_DEBUG("Setting: p: %d\n", ps->pcie_lanes);
305 	}
306 }
307 
308 void rs600_pm_prepare(struct radeon_device *rdev)
309 {
310 	struct drm_device *ddev = rdev->ddev;
311 	struct drm_crtc *crtc;
312 	struct radeon_crtc *radeon_crtc;
313 	u32 tmp;
314 
315 	/* disable any active CRTCs */
316 	list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
317 		radeon_crtc = to_radeon_crtc(crtc);
318 		if (radeon_crtc->enabled) {
319 			tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
320 			tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
321 			WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
322 		}
323 	}
324 }
325 
326 void rs600_pm_finish(struct radeon_device *rdev)
327 {
328 	struct drm_device *ddev = rdev->ddev;
329 	struct drm_crtc *crtc;
330 	struct radeon_crtc *radeon_crtc;
331 	u32 tmp;
332 
333 	/* enable any active CRTCs */
334 	list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
335 		radeon_crtc = to_radeon_crtc(crtc);
336 		if (radeon_crtc->enabled) {
337 			tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
338 			tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
339 			WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
340 		}
341 	}
342 }
343 
344 /* hpd for digital panel detect/disconnect */
345 bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
346 {
347 	u32 tmp;
348 	bool connected = false;
349 
350 	switch (hpd) {
351 	case RADEON_HPD_1:
352 		tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
353 		if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
354 			connected = true;
355 		break;
356 	case RADEON_HPD_2:
357 		tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
358 		if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
359 			connected = true;
360 		break;
361 	default:
362 		break;
363 	}
364 	return connected;
365 }
366 
367 void rs600_hpd_set_polarity(struct radeon_device *rdev,
368 			    enum radeon_hpd_id hpd)
369 {
370 	u32 tmp;
371 	bool connected = rs600_hpd_sense(rdev, hpd);
372 
373 	switch (hpd) {
374 	case RADEON_HPD_1:
375 		tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
376 		if (connected)
377 			tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
378 		else
379 			tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
380 		WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
381 		break;
382 	case RADEON_HPD_2:
383 		tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
384 		if (connected)
385 			tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
386 		else
387 			tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
388 		WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
389 		break;
390 	default:
391 		break;
392 	}
393 }
394 
395 void rs600_hpd_init(struct radeon_device *rdev)
396 {
397 	struct drm_device *dev = rdev->ddev;
398 	struct drm_connector *connector;
399 	unsigned enable = 0;
400 
401 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
402 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
403 		switch (radeon_connector->hpd.hpd) {
404 		case RADEON_HPD_1:
405 			WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
406 			       S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
407 			break;
408 		case RADEON_HPD_2:
409 			WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
410 			       S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
411 			break;
412 		default:
413 			break;
414 		}
415 		enable |= 1 << radeon_connector->hpd.hpd;
416 		radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
417 	}
418 	radeon_irq_kms_enable_hpd(rdev, enable);
419 }
420 
421 void rs600_hpd_fini(struct radeon_device *rdev)
422 {
423 	struct drm_device *dev = rdev->ddev;
424 	struct drm_connector *connector;
425 	unsigned disable = 0;
426 
427 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
428 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
429 		switch (radeon_connector->hpd.hpd) {
430 		case RADEON_HPD_1:
431 			WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
432 			       S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
433 			break;
434 		case RADEON_HPD_2:
435 			WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
436 			       S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
437 			break;
438 		default:
439 			break;
440 		}
441 		disable |= 1 << radeon_connector->hpd.hpd;
442 	}
443 	radeon_irq_kms_disable_hpd(rdev, disable);
444 }
445 
446 int rs600_asic_reset(struct radeon_device *rdev)
447 {
448 	struct rv515_mc_save save;
449 	u32 status, tmp;
450 	int ret = 0;
451 
452 	status = RREG32(R_000E40_RBBM_STATUS);
453 	if (!G_000E40_GUI_ACTIVE(status)) {
454 		return 0;
455 	}
456 	/* Stops all mc clients */
457 	rv515_mc_stop(rdev, &save);
458 	status = RREG32(R_000E40_RBBM_STATUS);
459 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
460 	/* stop CP */
461 	WREG32(RADEON_CP_CSQ_CNTL, 0);
462 	tmp = RREG32(RADEON_CP_RB_CNTL);
463 	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
464 	WREG32(RADEON_CP_RB_RPTR_WR, 0);
465 	WREG32(RADEON_CP_RB_WPTR, 0);
466 	WREG32(RADEON_CP_RB_CNTL, tmp);
467 	pci_save_state(rdev->pdev);
468 	/* disable bus mastering */
469 	pci_clear_master(rdev->pdev);
470 	mdelay(1);
471 	/* reset GA+VAP */
472 	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
473 					S_0000F0_SOFT_RESET_GA(1));
474 	RREG32(R_0000F0_RBBM_SOFT_RESET);
475 	mdelay(500);
476 	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
477 	mdelay(1);
478 	status = RREG32(R_000E40_RBBM_STATUS);
479 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
480 	/* reset CP */
481 	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
482 	RREG32(R_0000F0_RBBM_SOFT_RESET);
483 	mdelay(500);
484 	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
485 	mdelay(1);
486 	status = RREG32(R_000E40_RBBM_STATUS);
487 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
488 	/* reset MC */
489 	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
490 	RREG32(R_0000F0_RBBM_SOFT_RESET);
491 	mdelay(500);
492 	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
493 	mdelay(1);
494 	status = RREG32(R_000E40_RBBM_STATUS);
495 	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
496 	/* restore PCI & busmastering */
497 	pci_restore_state(rdev->pdev);
498 	/* Check if GPU is idle */
499 	if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
500 		dev_err(rdev->dev, "failed to reset GPU\n");
501 		ret = -1;
502 	} else
503 		dev_info(rdev->dev, "GPU reset succeed\n");
504 	rv515_mc_resume(rdev, &save);
505 	return ret;
506 }
507 
508 /*
509  * GART.
510  */
511 void rs600_gart_tlb_flush(struct radeon_device *rdev)
512 {
513 	uint32_t tmp;
514 
515 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
516 	tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
517 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
518 
519 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
520 	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
521 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
522 
523 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
524 	tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
525 	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
526 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
527 }
528 
529 static int rs600_gart_init(struct radeon_device *rdev)
530 {
531 	int r;
532 
533 	if (rdev->gart.robj) {
534 		WARN(1, "RS600 GART already initialized\n");
535 		return 0;
536 	}
537 	/* Initialize common gart structure */
538 	r = radeon_gart_init(rdev);
539 	if (r) {
540 		return r;
541 	}
542 	rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
543 	return radeon_gart_table_vram_alloc(rdev);
544 }
545 
546 static int rs600_gart_enable(struct radeon_device *rdev)
547 {
548 	u32 tmp;
549 	int r, i;
550 
551 	if (rdev->gart.robj == NULL) {
552 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
553 		return -EINVAL;
554 	}
555 	r = radeon_gart_table_vram_pin(rdev);
556 	if (r)
557 		return r;
558 	radeon_gart_restore(rdev);
559 	/* Enable bus master */
560 	tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
561 	WREG32(RADEON_BUS_CNTL, tmp);
562 	/* FIXME: setup default page */
563 	WREG32_MC(R_000100_MC_PT0_CNTL,
564 		  (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
565 		   S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
566 
567 	for (i = 0; i < 19; i++) {
568 		WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
569 			  S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
570 			  S_00016C_SYSTEM_ACCESS_MODE_MASK(
571 				  V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
572 			  S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
573 				  V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
574 			  S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
575 			  S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
576 			  S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
577 	}
578 	/* enable first context */
579 	WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
580 		  S_000102_ENABLE_PAGE_TABLE(1) |
581 		  S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
582 
583 	/* disable all other contexts */
584 	for (i = 1; i < 8; i++)
585 		WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
586 
587 	/* setup the page table */
588 	WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
589 		  rdev->gart.table_addr);
590 	WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
591 	WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
592 	WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
593 
594 	/* System context maps to VRAM space */
595 	WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
596 	WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
597 
598 	/* enable page tables */
599 	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
600 	WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
601 	tmp = RREG32_MC(R_000009_MC_CNTL1);
602 	WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
603 	rs600_gart_tlb_flush(rdev);
604 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
605 		 (unsigned)(rdev->mc.gtt_size >> 20),
606 		 (unsigned long long)rdev->gart.table_addr);
607 	rdev->gart.ready = true;
608 	return 0;
609 }
610 
611 static void rs600_gart_disable(struct radeon_device *rdev)
612 {
613 	u32 tmp;
614 
615 	/* FIXME: disable out of gart access */
616 	WREG32_MC(R_000100_MC_PT0_CNTL, 0);
617 	tmp = RREG32_MC(R_000009_MC_CNTL1);
618 	WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
619 	radeon_gart_table_vram_unpin(rdev);
620 }
621 
622 static void rs600_gart_fini(struct radeon_device *rdev)
623 {
624 	radeon_gart_fini(rdev);
625 	rs600_gart_disable(rdev);
626 	radeon_gart_table_vram_free(rdev);
627 }
628 
629 void rs600_gart_set_page(struct radeon_device *rdev, unsigned i, uint64_t addr)
630 {
631 	void __iomem *ptr = (void *)rdev->gart.ptr;
632 
633 	addr = addr & 0xFFFFFFFFFFFFF000ULL;
634 	if (addr == rdev->dummy_page.addr)
635 		addr |= R600_PTE_SYSTEM | R600_PTE_SNOOPED;
636 	else
637 		addr |= R600_PTE_GART;
638 	writeq(addr, ptr + (i * 8));
639 }
640 
641 int rs600_irq_set(struct radeon_device *rdev)
642 {
643 	uint32_t tmp = 0;
644 	uint32_t mode_int = 0;
645 	u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
646 		~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
647 	u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
648 		~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
649 	u32 hdmi0;
650 	if (ASIC_IS_DCE2(rdev))
651 		hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
652 			~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
653 	else
654 		hdmi0 = 0;
655 
656 	if (!rdev->irq.installed) {
657 		WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
658 		WREG32(R_000040_GEN_INT_CNTL, 0);
659 		return -EINVAL;
660 	}
661 	if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
662 		tmp |= S_000040_SW_INT_EN(1);
663 	}
664 	if (rdev->irq.crtc_vblank_int[0] ||
665 	    atomic_read(&rdev->irq.pflip[0])) {
666 		mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
667 	}
668 	if (rdev->irq.crtc_vblank_int[1] ||
669 	    atomic_read(&rdev->irq.pflip[1])) {
670 		mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
671 	}
672 	if (rdev->irq.hpd[0]) {
673 		hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
674 	}
675 	if (rdev->irq.hpd[1]) {
676 		hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
677 	}
678 	if (rdev->irq.afmt[0]) {
679 		hdmi0 |= S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
680 	}
681 	WREG32(R_000040_GEN_INT_CNTL, tmp);
682 	WREG32(R_006540_DxMODE_INT_MASK, mode_int);
683 	WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
684 	WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
685 	if (ASIC_IS_DCE2(rdev))
686 		WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
687 	return 0;
688 }
689 
690 static inline u32 rs600_irq_ack(struct radeon_device *rdev)
691 {
692 	uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
693 	uint32_t irq_mask = S_000044_SW_INT(1);
694 	u32 tmp;
695 
696 	if (G_000044_DISPLAY_INT_STAT(irqs)) {
697 		rdev->irq.stat_regs.r500.disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
698 		if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
699 			WREG32(R_006534_D1MODE_VBLANK_STATUS,
700 				S_006534_D1MODE_VBLANK_ACK(1));
701 		}
702 		if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
703 			WREG32(R_006D34_D2MODE_VBLANK_STATUS,
704 				S_006D34_D2MODE_VBLANK_ACK(1));
705 		}
706 		if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
707 			tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
708 			tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
709 			WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
710 		}
711 		if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
712 			tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
713 			tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
714 			WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
715 		}
716 	} else {
717 		rdev->irq.stat_regs.r500.disp_int = 0;
718 	}
719 
720 	if (ASIC_IS_DCE2(rdev)) {
721 		rdev->irq.stat_regs.r500.hdmi0_status = RREG32(R_007404_HDMI0_STATUS) &
722 			S_007404_HDMI0_AZ_FORMAT_WTRIG(1);
723 		if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
724 			tmp = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL);
725 			tmp |= S_007408_HDMI0_AZ_FORMAT_WTRIG_ACK(1);
726 			WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, tmp);
727 		}
728 	} else
729 		rdev->irq.stat_regs.r500.hdmi0_status = 0;
730 
731 	if (irqs) {
732 		WREG32(R_000044_GEN_INT_STATUS, irqs);
733 	}
734 	return irqs & irq_mask;
735 }
736 
737 void rs600_irq_disable(struct radeon_device *rdev)
738 {
739 	u32 hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
740 		~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
741 	WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
742 	WREG32(R_000040_GEN_INT_CNTL, 0);
743 	WREG32(R_006540_DxMODE_INT_MASK, 0);
744 	/* Wait and acknowledge irq */
745 	mdelay(1);
746 	rs600_irq_ack(rdev);
747 }
748 
749 int rs600_irq_process(struct radeon_device *rdev)
750 {
751 	u32 status, msi_rearm;
752 	bool queue_hotplug = false;
753 	bool queue_hdmi = false;
754 
755 	status = rs600_irq_ack(rdev);
756 	if (!status &&
757 	    !rdev->irq.stat_regs.r500.disp_int &&
758 	    !rdev->irq.stat_regs.r500.hdmi0_status) {
759 		return IRQ_NONE;
760 	}
761 	while (status ||
762 	       rdev->irq.stat_regs.r500.disp_int ||
763 	       rdev->irq.stat_regs.r500.hdmi0_status) {
764 		/* SW interrupt */
765 		if (G_000044_SW_INT(status)) {
766 			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
767 		}
768 		/* Vertical blank interrupts */
769 		if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
770 			if (rdev->irq.crtc_vblank_int[0]) {
771 				drm_handle_vblank(rdev->ddev, 0);
772 				rdev->pm.vblank_sync = true;
773 				wake_up(&rdev->irq.vblank_queue);
774 			}
775 			if (atomic_read(&rdev->irq.pflip[0]))
776 				radeon_crtc_handle_vblank(rdev, 0);
777 		}
778 		if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
779 			if (rdev->irq.crtc_vblank_int[1]) {
780 				drm_handle_vblank(rdev->ddev, 1);
781 				rdev->pm.vblank_sync = true;
782 				wake_up(&rdev->irq.vblank_queue);
783 			}
784 			if (atomic_read(&rdev->irq.pflip[1]))
785 				radeon_crtc_handle_vblank(rdev, 1);
786 		}
787 		if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
788 			queue_hotplug = true;
789 			DRM_DEBUG("HPD1\n");
790 		}
791 		if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
792 			queue_hotplug = true;
793 			DRM_DEBUG("HPD2\n");
794 		}
795 		if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
796 			queue_hdmi = true;
797 			DRM_DEBUG("HDMI0\n");
798 		}
799 		status = rs600_irq_ack(rdev);
800 	}
801 	if (queue_hotplug)
802 		schedule_work(&rdev->hotplug_work);
803 	if (queue_hdmi)
804 		schedule_work(&rdev->audio_work);
805 	if (rdev->msi_enabled) {
806 		switch (rdev->family) {
807 		case CHIP_RS600:
808 		case CHIP_RS690:
809 		case CHIP_RS740:
810 			msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
811 			WREG32(RADEON_BUS_CNTL, msi_rearm);
812 			WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
813 			break;
814 		default:
815 			WREG32(RADEON_MSI_REARM_EN, RV370_MSI_REARM_EN);
816 			break;
817 		}
818 	}
819 	return IRQ_HANDLED;
820 }
821 
822 u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
823 {
824 	if (crtc == 0)
825 		return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
826 	else
827 		return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
828 }
829 
830 int rs600_mc_wait_for_idle(struct radeon_device *rdev)
831 {
832 	unsigned i;
833 
834 	for (i = 0; i < rdev->usec_timeout; i++) {
835 		if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
836 			return 0;
837 		udelay(1);
838 	}
839 	return -1;
840 }
841 
842 static void rs600_gpu_init(struct radeon_device *rdev)
843 {
844 	r420_pipes_init(rdev);
845 	/* Wait for mc idle */
846 	if (rs600_mc_wait_for_idle(rdev))
847 		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
848 }
849 
850 static void rs600_mc_init(struct radeon_device *rdev)
851 {
852 	u64 base;
853 
854 	rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
855 	rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
856 	rdev->mc.vram_is_ddr = true;
857 	rdev->mc.vram_width = 128;
858 	rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
859 	rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
860 	rdev->mc.visible_vram_size = rdev->mc.aper_size;
861 	rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
862 	base = RREG32_MC(R_000004_MC_FB_LOCATION);
863 	base = G_000004_MC_FB_START(base) << 16;
864 	radeon_vram_location(rdev, &rdev->mc, base);
865 	rdev->mc.gtt_base_align = 0;
866 	radeon_gtt_location(rdev, &rdev->mc);
867 	radeon_update_bandwidth_info(rdev);
868 }
869 
870 void rs600_bandwidth_update(struct radeon_device *rdev)
871 {
872 	struct drm_display_mode *mode0 = NULL;
873 	struct drm_display_mode *mode1 = NULL;
874 	u32 d1mode_priority_a_cnt, d2mode_priority_a_cnt;
875 	/* FIXME: implement full support */
876 
877 	radeon_update_display_priority(rdev);
878 
879 	if (rdev->mode_info.crtcs[0]->base.enabled)
880 		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
881 	if (rdev->mode_info.crtcs[1]->base.enabled)
882 		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
883 
884 	rs690_line_buffer_adjust(rdev, mode0, mode1);
885 
886 	if (rdev->disp_priority == 2) {
887 		d1mode_priority_a_cnt = RREG32(R_006548_D1MODE_PRIORITY_A_CNT);
888 		d2mode_priority_a_cnt = RREG32(R_006D48_D2MODE_PRIORITY_A_CNT);
889 		d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
890 		d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
891 		WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
892 		WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
893 		WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
894 		WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
895 	}
896 }
897 
898 uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
899 {
900 	unsigned long flags;
901 	u32 r;
902 
903 	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
904 	WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
905 		S_000070_MC_IND_CITF_ARB0(1));
906 	r = RREG32(R_000074_MC_IND_DATA);
907 	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
908 	return r;
909 }
910 
911 void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
912 {
913 	unsigned long flags;
914 
915 	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
916 	WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
917 		S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
918 	WREG32(R_000074_MC_IND_DATA, v);
919 	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
920 }
921 
922 static void rs600_debugfs(struct radeon_device *rdev)
923 {
924 	if (r100_debugfs_rbbm_init(rdev))
925 		DRM_ERROR("Failed to register debugfs file for RBBM !\n");
926 }
927 
928 void rs600_set_safe_registers(struct radeon_device *rdev)
929 {
930 	rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
931 	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
932 }
933 
934 static void rs600_mc_program(struct radeon_device *rdev)
935 {
936 	struct rv515_mc_save save;
937 
938 	/* Stops all mc clients */
939 	rv515_mc_stop(rdev, &save);
940 
941 	/* Wait for mc idle */
942 	if (rs600_mc_wait_for_idle(rdev))
943 		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
944 
945 	/* FIXME: What does AGP means for such chipset ? */
946 	WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
947 	WREG32_MC(R_000006_AGP_BASE, 0);
948 	WREG32_MC(R_000007_AGP_BASE_2, 0);
949 	/* Program MC */
950 	WREG32_MC(R_000004_MC_FB_LOCATION,
951 			S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
952 			S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
953 	WREG32(R_000134_HDP_FB_LOCATION,
954 		S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
955 
956 	rv515_mc_resume(rdev, &save);
957 }
958 
959 static int rs600_startup(struct radeon_device *rdev)
960 {
961 	int r;
962 
963 	rs600_mc_program(rdev);
964 	/* Resume clock */
965 	rv515_clock_startup(rdev);
966 	/* Initialize GPU configuration (# pipes, ...) */
967 	rs600_gpu_init(rdev);
968 	/* Initialize GART (initialize after TTM so we can allocate
969 	 * memory through TTM but finalize after TTM) */
970 	r = rs600_gart_enable(rdev);
971 	if (r)
972 		return r;
973 
974 	/* allocate wb buffer */
975 	r = radeon_wb_init(rdev);
976 	if (r)
977 		return r;
978 
979 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
980 	if (r) {
981 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
982 		return r;
983 	}
984 
985 	/* Enable IRQ */
986 	if (!rdev->irq.installed) {
987 		r = radeon_irq_kms_init(rdev);
988 		if (r)
989 			return r;
990 	}
991 
992 	rs600_irq_set(rdev);
993 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
994 	/* 1M ring buffer */
995 	r = r100_cp_init(rdev, 1024 * 1024);
996 	if (r) {
997 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
998 		return r;
999 	}
1000 
1001 	r = radeon_ib_pool_init(rdev);
1002 	if (r) {
1003 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1004 		return r;
1005 	}
1006 
1007 	r = r600_audio_init(rdev);
1008 	if (r) {
1009 		dev_err(rdev->dev, "failed initializing audio\n");
1010 		return r;
1011 	}
1012 
1013 	return 0;
1014 }
1015 
1016 int rs600_resume(struct radeon_device *rdev)
1017 {
1018 	int r;
1019 
1020 	/* Make sur GART are not working */
1021 	rs600_gart_disable(rdev);
1022 	/* Resume clock before doing reset */
1023 	rv515_clock_startup(rdev);
1024 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1025 	if (radeon_asic_reset(rdev)) {
1026 		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1027 			RREG32(R_000E40_RBBM_STATUS),
1028 			RREG32(R_0007C0_CP_STAT));
1029 	}
1030 	/* post */
1031 	atom_asic_init(rdev->mode_info.atom_context);
1032 	/* Resume clock after posting */
1033 	rv515_clock_startup(rdev);
1034 	/* Initialize surface registers */
1035 	radeon_surface_init(rdev);
1036 
1037 	rdev->accel_working = true;
1038 	r = rs600_startup(rdev);
1039 	if (r) {
1040 		rdev->accel_working = false;
1041 	}
1042 	return r;
1043 }
1044 
1045 int rs600_suspend(struct radeon_device *rdev)
1046 {
1047 	radeon_pm_suspend(rdev);
1048 	r600_audio_fini(rdev);
1049 	r100_cp_disable(rdev);
1050 	radeon_wb_disable(rdev);
1051 	rs600_irq_disable(rdev);
1052 	rs600_gart_disable(rdev);
1053 	return 0;
1054 }
1055 
1056 void rs600_fini(struct radeon_device *rdev)
1057 {
1058 	radeon_pm_fini(rdev);
1059 	r600_audio_fini(rdev);
1060 	r100_cp_fini(rdev);
1061 	radeon_wb_fini(rdev);
1062 	radeon_ib_pool_fini(rdev);
1063 	radeon_gem_fini(rdev);
1064 	rs600_gart_fini(rdev);
1065 	radeon_irq_kms_fini(rdev);
1066 	radeon_fence_driver_fini(rdev);
1067 	radeon_bo_fini(rdev);
1068 	radeon_atombios_fini(rdev);
1069 	kfree(rdev->bios);
1070 	rdev->bios = NULL;
1071 }
1072 
1073 int rs600_init(struct radeon_device *rdev)
1074 {
1075 	int r;
1076 
1077 	/* Disable VGA */
1078 	rv515_vga_render_disable(rdev);
1079 	/* Initialize scratch registers */
1080 	radeon_scratch_init(rdev);
1081 	/* Initialize surface registers */
1082 	radeon_surface_init(rdev);
1083 	/* restore some register to sane defaults */
1084 	r100_restore_sanity(rdev);
1085 	/* BIOS */
1086 	if (!radeon_get_bios(rdev)) {
1087 		if (ASIC_IS_AVIVO(rdev))
1088 			return -EINVAL;
1089 	}
1090 	if (rdev->is_atom_bios) {
1091 		r = radeon_atombios_init(rdev);
1092 		if (r)
1093 			return r;
1094 	} else {
1095 		dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
1096 		return -EINVAL;
1097 	}
1098 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1099 	if (radeon_asic_reset(rdev)) {
1100 		dev_warn(rdev->dev,
1101 			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1102 			RREG32(R_000E40_RBBM_STATUS),
1103 			RREG32(R_0007C0_CP_STAT));
1104 	}
1105 	/* check if cards are posted or not */
1106 	if (radeon_boot_test_post_card(rdev) == false)
1107 		return -EINVAL;
1108 
1109 	/* Initialize clocks */
1110 	radeon_get_clock_info(rdev->ddev);
1111 	/* initialize memory controller */
1112 	rs600_mc_init(rdev);
1113 	rs600_debugfs(rdev);
1114 	/* Fence driver */
1115 	r = radeon_fence_driver_init(rdev);
1116 	if (r)
1117 		return r;
1118 	/* Memory manager */
1119 	r = radeon_bo_init(rdev);
1120 	if (r)
1121 		return r;
1122 	r = rs600_gart_init(rdev);
1123 	if (r)
1124 		return r;
1125 	rs600_set_safe_registers(rdev);
1126 
1127 	/* Initialize power management */
1128 	radeon_pm_init(rdev);
1129 
1130 	rdev->accel_working = true;
1131 	r = rs600_startup(rdev);
1132 	if (r) {
1133 		/* Somethings want wront with the accel init stop accel */
1134 		dev_err(rdev->dev, "Disabling GPU acceleration\n");
1135 		r100_cp_fini(rdev);
1136 		radeon_wb_fini(rdev);
1137 		radeon_ib_pool_fini(rdev);
1138 		rs600_gart_fini(rdev);
1139 		radeon_irq_kms_fini(rdev);
1140 		rdev->accel_working = false;
1141 	}
1142 	return 0;
1143 }
1144