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
39#include <linux/io-64-nonatomic-lo-hi.h>
40#include <linux/pci.h>
41
42#include <drm/drm_device.h>
43#include <drm/drm_vblank.h>
44
45#include "atom.h"
46#include "radeon.h"
47#include "radeon_asic.h"
48#include "radeon_audio.h"
49#include "rs600_reg_safe.h"
50#include "rs600d.h"
51
52static void rs600_gpu_init(struct radeon_device *rdev);
53int rs600_mc_wait_for_idle(struct radeon_device *rdev);
54
55static const u32 crtc_offsets[2] =
56{
57	0,
58	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
59};
60
61static bool avivo_is_in_vblank(struct radeon_device *rdev, int crtc)
62{
63	if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
64		return true;
65	else
66		return false;
67}
68
69static bool avivo_is_counter_moving(struct radeon_device *rdev, int crtc)
70{
71	u32 pos1, pos2;
72
73	pos1 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
74	pos2 = RREG32(AVIVO_D1CRTC_STATUS_POSITION + crtc_offsets[crtc]);
75
76	if (pos1 != pos2)
77		return true;
78	else
79		return false;
80}
81
82/**
83 * avivo_wait_for_vblank - vblank wait asic callback.
84 *
85 * @rdev: radeon_device pointer
86 * @crtc: crtc to wait for vblank on
87 *
88 * Wait for vblank on the requested crtc (r5xx-r7xx).
89 */
90void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
91{
92	unsigned i = 0;
93
94	if (crtc >= rdev->num_crtc)
95		return;
96
97	if (!(RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN))
98		return;
99
100	/* depending on when we hit vblank, we may be close to active; if so,
101	 * wait for another frame.
102	 */
103	while (avivo_is_in_vblank(rdev, crtc)) {
104		if (i++ % 100 == 0) {
105			if (!avivo_is_counter_moving(rdev, crtc))
106				break;
107		}
108	}
109
110	while (!avivo_is_in_vblank(rdev, crtc)) {
111		if (i++ % 100 == 0) {
112			if (!avivo_is_counter_moving(rdev, crtc))
113				break;
114		}
115	}
116}
117
118void rs600_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base, bool async)
119{
120	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
121	u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
122	int i;
123
124	/* Lock the graphics update lock */
125	tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
126	WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
127
128	/* update the scanout addresses */
129	WREG32(AVIVO_D1GRPH_FLIP_CONTROL + radeon_crtc->crtc_offset,
130	       async ? AVIVO_D1GRPH_SURFACE_UPDATE_H_RETRACE_EN : 0);
131	WREG32(AVIVO_D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
132	       (u32)crtc_base);
133	WREG32(AVIVO_D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
134	       (u32)crtc_base);
135
136	/* Wait for update_pending to go high. */
137	for (i = 0; i < rdev->usec_timeout; i++) {
138		if (RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING)
139			break;
140		udelay(1);
141	}
142	DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
143
144	/* Unlock the lock, so double-buffering can take place inside vblank */
145	tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
146	WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
147}
148
149bool rs600_page_flip_pending(struct radeon_device *rdev, int crtc_id)
150{
151	struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
152
153	/* Return current update_pending status: */
154	return !!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) &
155		AVIVO_D1GRPH_SURFACE_UPDATE_PENDING);
156}
157
158void avivo_program_fmt(struct drm_encoder *encoder)
159{
160	struct drm_device *dev = encoder->dev;
161	struct radeon_device *rdev = dev->dev_private;
162	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
163	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
164	int bpc = 0;
165	u32 tmp = 0;
166	enum radeon_connector_dither dither = RADEON_FMT_DITHER_DISABLE;
167
168	if (connector) {
169		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
170		bpc = radeon_get_monitor_bpc(connector);
171		dither = radeon_connector->dither;
172	}
173
174	/* LVDS FMT is set up by atom */
175	if (radeon_encoder->devices & ATOM_DEVICE_LCD_SUPPORT)
176		return;
177
178	if (bpc == 0)
179		return;
180
181	switch (bpc) {
182	case 6:
183		if (dither == RADEON_FMT_DITHER_ENABLE)
184			/* XXX sort out optimal dither settings */
185			tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN;
186		else
187			tmp |= AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN;
188		break;
189	case 8:
190		if (dither == RADEON_FMT_DITHER_ENABLE)
191			/* XXX sort out optimal dither settings */
192			tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_EN |
193				AVIVO_TMDS_BIT_DEPTH_CONTROL_SPATIAL_DITHER_DEPTH);
194		else
195			tmp |= (AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_EN |
196				AVIVO_TMDS_BIT_DEPTH_CONTROL_TRUNCATE_DEPTH);
197		break;
198	case 10:
199	default:
200		/* not needed */
201		break;
202	}
203
204	switch (radeon_encoder->encoder_id) {
205	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
206		WREG32(AVIVO_TMDSA_BIT_DEPTH_CONTROL, tmp);
207		break;
208	case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
209		WREG32(AVIVO_LVTMA_BIT_DEPTH_CONTROL, tmp);
210		break;
211	case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
212		WREG32(AVIVO_DVOA_BIT_DEPTH_CONTROL, tmp);
213		break;
214	case ENCODER_OBJECT_ID_INTERNAL_DDI:
215		WREG32(AVIVO_DDIA_BIT_DEPTH_CONTROL, tmp);
216		break;
217	default:
218		break;
219	}
220}
221
222void rs600_pm_misc(struct radeon_device *rdev)
223{
224	int requested_index = rdev->pm.requested_power_state_index;
225	struct radeon_power_state *ps = &rdev->pm.power_state[requested_index];
226	struct radeon_voltage *voltage = &ps->clock_info[0].voltage;
227	u32 tmp, dyn_pwrmgt_sclk_length, dyn_sclk_vol_cntl;
228	u32 hdp_dyn_cntl, /*mc_host_dyn_cntl,*/ dyn_backbias_cntl;
229
230	if ((voltage->type == VOLTAGE_GPIO) && (voltage->gpio.valid)) {
231		if (ps->misc & ATOM_PM_MISCINFO_VOLTAGE_DROP_SUPPORT) {
232			tmp = RREG32(voltage->gpio.reg);
233			if (voltage->active_high)
234				tmp |= voltage->gpio.mask;
235			else
236				tmp &= ~(voltage->gpio.mask);
237			WREG32(voltage->gpio.reg, tmp);
238			if (voltage->delay)
239				udelay(voltage->delay);
240		} else {
241			tmp = RREG32(voltage->gpio.reg);
242			if (voltage->active_high)
243				tmp &= ~voltage->gpio.mask;
244			else
245				tmp |= voltage->gpio.mask;
246			WREG32(voltage->gpio.reg, tmp);
247			if (voltage->delay)
248				udelay(voltage->delay);
249		}
250	} else if (voltage->type == VOLTAGE_VDDC)
251		radeon_atom_set_voltage(rdev, voltage->vddc_id, SET_VOLTAGE_TYPE_ASIC_VDDC);
252
253	dyn_pwrmgt_sclk_length = RREG32_PLL(DYN_PWRMGT_SCLK_LENGTH);
254	dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_HILEN(0xf);
255	dyn_pwrmgt_sclk_length &= ~REDUCED_POWER_SCLK_LOLEN(0xf);
256	if (ps->misc & ATOM_PM_MISCINFO_ASIC_REDUCED_SPEED_SCLK_EN) {
257		if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_2) {
258			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(2);
259			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(2);
260		} else if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_CLOCK_DIVIDER_BY_4) {
261			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(4);
262			dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(4);
263		}
264	} else {
265		dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_HILEN(1);
266		dyn_pwrmgt_sclk_length |= REDUCED_POWER_SCLK_LOLEN(1);
267	}
268	WREG32_PLL(DYN_PWRMGT_SCLK_LENGTH, dyn_pwrmgt_sclk_length);
269
270	dyn_sclk_vol_cntl = RREG32_PLL(DYN_SCLK_VOL_CNTL);
271	if (ps->misc & ATOM_PM_MISCINFO_ASIC_DYNAMIC_VOLTAGE_EN) {
272		dyn_sclk_vol_cntl |= IO_CG_VOLTAGE_DROP;
273		if (voltage->delay) {
274			dyn_sclk_vol_cntl |= VOLTAGE_DROP_SYNC;
275			dyn_sclk_vol_cntl |= VOLTAGE_DELAY_SEL(voltage->delay);
276		} else
277			dyn_sclk_vol_cntl &= ~VOLTAGE_DROP_SYNC;
278	} else
279		dyn_sclk_vol_cntl &= ~IO_CG_VOLTAGE_DROP;
280	WREG32_PLL(DYN_SCLK_VOL_CNTL, dyn_sclk_vol_cntl);
281
282	hdp_dyn_cntl = RREG32_PLL(HDP_DYN_CNTL);
283	if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_HDP_BLOCK_EN)
284		hdp_dyn_cntl &= ~HDP_FORCEON;
285	else
286		hdp_dyn_cntl |= HDP_FORCEON;
287	WREG32_PLL(HDP_DYN_CNTL, hdp_dyn_cntl);
288#if 0
289	/* mc_host_dyn seems to cause hangs from time to time */
290	mc_host_dyn_cntl = RREG32_PLL(MC_HOST_DYN_CNTL);
291	if (ps->misc & ATOM_PM_MISCINFO_DYNAMIC_MC_HOST_BLOCK_EN)
292		mc_host_dyn_cntl &= ~MC_HOST_FORCEON;
293	else
294		mc_host_dyn_cntl |= MC_HOST_FORCEON;
295	WREG32_PLL(MC_HOST_DYN_CNTL, mc_host_dyn_cntl);
296#endif
297	dyn_backbias_cntl = RREG32_PLL(DYN_BACKBIAS_CNTL);
298	if (ps->misc & ATOM_PM_MISCINFO2_DYNAMIC_BACK_BIAS_EN)
299		dyn_backbias_cntl |= IO_CG_BACKBIAS_EN;
300	else
301		dyn_backbias_cntl &= ~IO_CG_BACKBIAS_EN;
302	WREG32_PLL(DYN_BACKBIAS_CNTL, dyn_backbias_cntl);
303
304	/* set pcie lanes */
305	if ((rdev->flags & RADEON_IS_PCIE) &&
306	    !(rdev->flags & RADEON_IS_IGP) &&
307	    rdev->asic->pm.set_pcie_lanes &&
308	    (ps->pcie_lanes !=
309	     rdev->pm.power_state[rdev->pm.current_power_state_index].pcie_lanes)) {
310		radeon_set_pcie_lanes(rdev,
311				      ps->pcie_lanes);
312		DRM_DEBUG("Setting: p: %d\n", ps->pcie_lanes);
313	}
314}
315
316void rs600_pm_prepare(struct radeon_device *rdev)
317{
318	struct drm_device *ddev = rdev->ddev;
319	struct drm_crtc *crtc;
320	struct radeon_crtc *radeon_crtc;
321	u32 tmp;
322
323	/* disable any active CRTCs */
324	list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
325		radeon_crtc = to_radeon_crtc(crtc);
326		if (radeon_crtc->enabled) {
327			tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
328			tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
329			WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
330		}
331	}
332}
333
334void rs600_pm_finish(struct radeon_device *rdev)
335{
336	struct drm_device *ddev = rdev->ddev;
337	struct drm_crtc *crtc;
338	struct radeon_crtc *radeon_crtc;
339	u32 tmp;
340
341	/* enable any active CRTCs */
342	list_for_each_entry(crtc, &ddev->mode_config.crtc_list, head) {
343		radeon_crtc = to_radeon_crtc(crtc);
344		if (radeon_crtc->enabled) {
345			tmp = RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset);
346			tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
347			WREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset, tmp);
348		}
349	}
350}
351
352/* hpd for digital panel detect/disconnect */
353bool rs600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd)
354{
355	u32 tmp;
356	bool connected = false;
357
358	switch (hpd) {
359	case RADEON_HPD_1:
360		tmp = RREG32(R_007D04_DC_HOT_PLUG_DETECT1_INT_STATUS);
361		if (G_007D04_DC_HOT_PLUG_DETECT1_SENSE(tmp))
362			connected = true;
363		break;
364	case RADEON_HPD_2:
365		tmp = RREG32(R_007D14_DC_HOT_PLUG_DETECT2_INT_STATUS);
366		if (G_007D14_DC_HOT_PLUG_DETECT2_SENSE(tmp))
367			connected = true;
368		break;
369	default:
370		break;
371	}
372	return connected;
373}
374
375void rs600_hpd_set_polarity(struct radeon_device *rdev,
376			    enum radeon_hpd_id hpd)
377{
378	u32 tmp;
379	bool connected = rs600_hpd_sense(rdev, hpd);
380
381	switch (hpd) {
382	case RADEON_HPD_1:
383		tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
384		if (connected)
385			tmp &= ~S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
386		else
387			tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_POLARITY(1);
388		WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
389		break;
390	case RADEON_HPD_2:
391		tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
392		if (connected)
393			tmp &= ~S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
394		else
395			tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_POLARITY(1);
396		WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
397		break;
398	default:
399		break;
400	}
401}
402
403void rs600_hpd_init(struct radeon_device *rdev)
404{
405	struct drm_device *dev = rdev->ddev;
406	struct drm_connector *connector;
407	unsigned enable = 0;
408
409	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
410		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
411		switch (radeon_connector->hpd.hpd) {
412		case RADEON_HPD_1:
413			WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
414			       S_007D00_DC_HOT_PLUG_DETECT1_EN(1));
415			break;
416		case RADEON_HPD_2:
417			WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
418			       S_007D10_DC_HOT_PLUG_DETECT2_EN(1));
419			break;
420		default:
421			break;
422		}
423		if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
424			enable |= 1 << radeon_connector->hpd.hpd;
425		radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
426	}
427	radeon_irq_kms_enable_hpd(rdev, enable);
428}
429
430void rs600_hpd_fini(struct radeon_device *rdev)
431{
432	struct drm_device *dev = rdev->ddev;
433	struct drm_connector *connector;
434	unsigned disable = 0;
435
436	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
437		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
438		switch (radeon_connector->hpd.hpd) {
439		case RADEON_HPD_1:
440			WREG32(R_007D00_DC_HOT_PLUG_DETECT1_CONTROL,
441			       S_007D00_DC_HOT_PLUG_DETECT1_EN(0));
442			break;
443		case RADEON_HPD_2:
444			WREG32(R_007D10_DC_HOT_PLUG_DETECT2_CONTROL,
445			       S_007D10_DC_HOT_PLUG_DETECT2_EN(0));
446			break;
447		default:
448			break;
449		}
450		if (radeon_connector->hpd.hpd != RADEON_HPD_NONE)
451			disable |= 1 << radeon_connector->hpd.hpd;
452	}
453	radeon_irq_kms_disable_hpd(rdev, disable);
454}
455
456int rs600_asic_reset(struct radeon_device *rdev, bool hard)
457{
458	struct rv515_mc_save save;
459	u32 status, tmp;
460	int ret = 0;
461
462	status = RREG32(R_000E40_RBBM_STATUS);
463	if (!G_000E40_GUI_ACTIVE(status)) {
464		return 0;
465	}
466	/* Stops all mc clients */
467	rv515_mc_stop(rdev, &save);
468	status = RREG32(R_000E40_RBBM_STATUS);
469	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
470	/* stop CP */
471	WREG32(RADEON_CP_CSQ_CNTL, 0);
472	tmp = RREG32(RADEON_CP_RB_CNTL);
473	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
474	WREG32(RADEON_CP_RB_RPTR_WR, 0);
475	WREG32(RADEON_CP_RB_WPTR, 0);
476	WREG32(RADEON_CP_RB_CNTL, tmp);
477	pci_save_state(rdev->pdev);
478	/* disable bus mastering */
479	pci_clear_master(rdev->pdev);
480	mdelay(1);
481	/* reset GA+VAP */
482	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
483					S_0000F0_SOFT_RESET_GA(1));
484	RREG32(R_0000F0_RBBM_SOFT_RESET);
485	mdelay(500);
486	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
487	mdelay(1);
488	status = RREG32(R_000E40_RBBM_STATUS);
489	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
490	/* reset CP */
491	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
492	RREG32(R_0000F0_RBBM_SOFT_RESET);
493	mdelay(500);
494	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
495	mdelay(1);
496	status = RREG32(R_000E40_RBBM_STATUS);
497	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
498	/* reset MC */
499	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_MC(1));
500	RREG32(R_0000F0_RBBM_SOFT_RESET);
501	mdelay(500);
502	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
503	mdelay(1);
504	status = RREG32(R_000E40_RBBM_STATUS);
505	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
506	/* restore PCI & busmastering */
507	pci_restore_state(rdev->pdev);
508	/* Check if GPU is idle */
509	if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
510		dev_err(rdev->dev, "failed to reset GPU\n");
511		ret = -1;
512	} else
513		dev_info(rdev->dev, "GPU reset succeed\n");
514	rv515_mc_resume(rdev, &save);
515	return ret;
516}
517
518/*
519 * GART.
520 */
521void rs600_gart_tlb_flush(struct radeon_device *rdev)
522{
523	uint32_t tmp;
524
525	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
526	tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
527	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
528
529	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
530	tmp |= S_000100_INVALIDATE_ALL_L1_TLBS(1) | S_000100_INVALIDATE_L2_CACHE(1);
531	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
532
533	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
534	tmp &= C_000100_INVALIDATE_ALL_L1_TLBS & C_000100_INVALIDATE_L2_CACHE;
535	WREG32_MC(R_000100_MC_PT0_CNTL, tmp);
536	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
537}
538
539static int rs600_gart_init(struct radeon_device *rdev)
540{
541	int r;
542
543	if (rdev->gart.robj) {
544		WARN(1, "RS600 GART already initialized\n");
545		return 0;
546	}
547	/* Initialize common gart structure */
548	r = radeon_gart_init(rdev);
549	if (r) {
550		return r;
551	}
552	rdev->gart.table_size = rdev->gart.num_gpu_pages * 8;
553	return radeon_gart_table_vram_alloc(rdev);
554}
555
556static int rs600_gart_enable(struct radeon_device *rdev)
557{
558	u32 tmp;
559	int r, i;
560
561	if (rdev->gart.robj == NULL) {
562		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
563		return -EINVAL;
564	}
565	r = radeon_gart_table_vram_pin(rdev);
566	if (r)
567		return r;
568	/* Enable bus master */
569	tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS;
570	WREG32(RADEON_BUS_CNTL, tmp);
571	/* FIXME: setup default page */
572	WREG32_MC(R_000100_MC_PT0_CNTL,
573		  (S_000100_EFFECTIVE_L2_CACHE_SIZE(6) |
574		   S_000100_EFFECTIVE_L2_QUEUE_SIZE(6)));
575
576	for (i = 0; i < 19; i++) {
577		WREG32_MC(R_00016C_MC_PT0_CLIENT0_CNTL + i,
578			  S_00016C_ENABLE_TRANSLATION_MODE_OVERRIDE(1) |
579			  S_00016C_SYSTEM_ACCESS_MODE_MASK(
580				  V_00016C_SYSTEM_ACCESS_MODE_NOT_IN_SYS) |
581			  S_00016C_SYSTEM_APERTURE_UNMAPPED_ACCESS(
582				  V_00016C_SYSTEM_APERTURE_UNMAPPED_PASSTHROUGH) |
583			  S_00016C_EFFECTIVE_L1_CACHE_SIZE(3) |
584			  S_00016C_ENABLE_FRAGMENT_PROCESSING(1) |
585			  S_00016C_EFFECTIVE_L1_QUEUE_SIZE(3));
586	}
587	/* enable first context */
588	WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL,
589		  S_000102_ENABLE_PAGE_TABLE(1) |
590		  S_000102_PAGE_TABLE_DEPTH(V_000102_PAGE_TABLE_FLAT));
591
592	/* disable all other contexts */
593	for (i = 1; i < 8; i++)
594		WREG32_MC(R_000102_MC_PT0_CONTEXT0_CNTL + i, 0);
595
596	/* setup the page table */
597	WREG32_MC(R_00012C_MC_PT0_CONTEXT0_FLAT_BASE_ADDR,
598		  rdev->gart.table_addr);
599	WREG32_MC(R_00013C_MC_PT0_CONTEXT0_FLAT_START_ADDR, rdev->mc.gtt_start);
600	WREG32_MC(R_00014C_MC_PT0_CONTEXT0_FLAT_END_ADDR, rdev->mc.gtt_end);
601	WREG32_MC(R_00011C_MC_PT0_CONTEXT0_DEFAULT_READ_ADDR, 0);
602
603	/* System context maps to VRAM space */
604	WREG32_MC(R_000112_MC_PT0_SYSTEM_APERTURE_LOW_ADDR, rdev->mc.vram_start);
605	WREG32_MC(R_000114_MC_PT0_SYSTEM_APERTURE_HIGH_ADDR, rdev->mc.vram_end);
606
607	/* enable page tables */
608	tmp = RREG32_MC(R_000100_MC_PT0_CNTL);
609	WREG32_MC(R_000100_MC_PT0_CNTL, (tmp | S_000100_ENABLE_PT(1)));
610	tmp = RREG32_MC(R_000009_MC_CNTL1);
611	WREG32_MC(R_000009_MC_CNTL1, (tmp | S_000009_ENABLE_PAGE_TABLES(1)));
612	rs600_gart_tlb_flush(rdev);
613	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
614		 (unsigned)(rdev->mc.gtt_size >> 20),
615		 (unsigned long long)rdev->gart.table_addr);
616	rdev->gart.ready = true;
617	return 0;
618}
619
620static void rs600_gart_disable(struct radeon_device *rdev)
621{
622	u32 tmp;
623
624	/* FIXME: disable out of gart access */
625	WREG32_MC(R_000100_MC_PT0_CNTL, 0);
626	tmp = RREG32_MC(R_000009_MC_CNTL1);
627	WREG32_MC(R_000009_MC_CNTL1, tmp & C_000009_ENABLE_PAGE_TABLES);
628	radeon_gart_table_vram_unpin(rdev);
629}
630
631static void rs600_gart_fini(struct radeon_device *rdev)
632{
633	radeon_gart_fini(rdev);
634	rs600_gart_disable(rdev);
635	radeon_gart_table_vram_free(rdev);
636}
637
638uint64_t rs600_gart_get_page_entry(uint64_t addr, uint32_t flags)
639{
640	addr = addr & 0xFFFFFFFFFFFFF000ULL;
641	addr |= R600_PTE_SYSTEM;
642	if (flags & RADEON_GART_PAGE_VALID)
643		addr |= R600_PTE_VALID;
644	if (flags & RADEON_GART_PAGE_READ)
645		addr |= R600_PTE_READABLE;
646	if (flags & RADEON_GART_PAGE_WRITE)
647		addr |= R600_PTE_WRITEABLE;
648	if (flags & RADEON_GART_PAGE_SNOOP)
649		addr |= R600_PTE_SNOOPED;
650	return addr;
651}
652
653void rs600_gart_set_page(struct radeon_device *rdev, unsigned i,
654			 uint64_t entry)
655{
656	void __iomem *ptr = (void *)rdev->gart.ptr;
657	writeq(entry, ptr + (i * 8));
658}
659
660int rs600_irq_set(struct radeon_device *rdev)
661{
662	uint32_t tmp = 0;
663	uint32_t mode_int = 0;
664	u32 hpd1 = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL) &
665		~S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
666	u32 hpd2 = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL) &
667		~S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
668	u32 hdmi0;
669	if (ASIC_IS_DCE2(rdev))
670		hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
671			~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
672	else
673		hdmi0 = 0;
674
675	if (!rdev->irq.installed) {
676		WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
677		WREG32(R_000040_GEN_INT_CNTL, 0);
678		return -EINVAL;
679	}
680	if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
681		tmp |= S_000040_SW_INT_EN(1);
682	}
683	if (rdev->irq.crtc_vblank_int[0] ||
684	    atomic_read(&rdev->irq.pflip[0])) {
685		mode_int |= S_006540_D1MODE_VBLANK_INT_MASK(1);
686	}
687	if (rdev->irq.crtc_vblank_int[1] ||
688	    atomic_read(&rdev->irq.pflip[1])) {
689		mode_int |= S_006540_D2MODE_VBLANK_INT_MASK(1);
690	}
691	if (rdev->irq.hpd[0]) {
692		hpd1 |= S_007D08_DC_HOT_PLUG_DETECT1_INT_EN(1);
693	}
694	if (rdev->irq.hpd[1]) {
695		hpd2 |= S_007D18_DC_HOT_PLUG_DETECT2_INT_EN(1);
696	}
697	if (rdev->irq.afmt[0]) {
698		hdmi0 |= S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
699	}
700	WREG32(R_000040_GEN_INT_CNTL, tmp);
701	WREG32(R_006540_DxMODE_INT_MASK, mode_int);
702	WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, hpd1);
703	WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, hpd2);
704	if (ASIC_IS_DCE2(rdev))
705		WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
706
707	/* posting read */
708	RREG32(R_000040_GEN_INT_CNTL);
709
710	return 0;
711}
712
713static inline u32 rs600_irq_ack(struct radeon_device *rdev)
714{
715	uint32_t irqs = RREG32(R_000044_GEN_INT_STATUS);
716	uint32_t irq_mask = S_000044_SW_INT(1);
717	u32 tmp;
718
719	if (G_000044_DISPLAY_INT_STAT(irqs)) {
720		rdev->irq.stat_regs.r500.disp_int = RREG32(R_007EDC_DISP_INTERRUPT_STATUS);
721		if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
722			WREG32(R_006534_D1MODE_VBLANK_STATUS,
723				S_006534_D1MODE_VBLANK_ACK(1));
724		}
725		if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
726			WREG32(R_006D34_D2MODE_VBLANK_STATUS,
727				S_006D34_D2MODE_VBLANK_ACK(1));
728		}
729		if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
730			tmp = RREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL);
731			tmp |= S_007D08_DC_HOT_PLUG_DETECT1_INT_ACK(1);
732			WREG32(R_007D08_DC_HOT_PLUG_DETECT1_INT_CONTROL, tmp);
733		}
734		if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
735			tmp = RREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL);
736			tmp |= S_007D18_DC_HOT_PLUG_DETECT2_INT_ACK(1);
737			WREG32(R_007D18_DC_HOT_PLUG_DETECT2_INT_CONTROL, tmp);
738		}
739	} else {
740		rdev->irq.stat_regs.r500.disp_int = 0;
741	}
742
743	if (ASIC_IS_DCE2(rdev)) {
744		rdev->irq.stat_regs.r500.hdmi0_status = RREG32(R_007404_HDMI0_STATUS) &
745			S_007404_HDMI0_AZ_FORMAT_WTRIG(1);
746		if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
747			tmp = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL);
748			tmp |= S_007408_HDMI0_AZ_FORMAT_WTRIG_ACK(1);
749			WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, tmp);
750		}
751	} else
752		rdev->irq.stat_regs.r500.hdmi0_status = 0;
753
754	if (irqs) {
755		WREG32(R_000044_GEN_INT_STATUS, irqs);
756	}
757	return irqs & irq_mask;
758}
759
760void rs600_irq_disable(struct radeon_device *rdev)
761{
762	u32 hdmi0 = RREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL) &
763		~S_007408_HDMI0_AZ_FORMAT_WTRIG_MASK(1);
764	WREG32(R_007408_HDMI0_AUDIO_PACKET_CONTROL, hdmi0);
765	WREG32(R_000040_GEN_INT_CNTL, 0);
766	WREG32(R_006540_DxMODE_INT_MASK, 0);
767	/* Wait and acknowledge irq */
768	mdelay(1);
769	rs600_irq_ack(rdev);
770}
771
772int rs600_irq_process(struct radeon_device *rdev)
773{
774	u32 status, msi_rearm;
775	bool queue_hotplug = false;
776	bool queue_hdmi = false;
777
778	status = rs600_irq_ack(rdev);
779	if (!status &&
780	    !rdev->irq.stat_regs.r500.disp_int &&
781	    !rdev->irq.stat_regs.r500.hdmi0_status) {
782		return IRQ_NONE;
783	}
784	while (status ||
785	       rdev->irq.stat_regs.r500.disp_int ||
786	       rdev->irq.stat_regs.r500.hdmi0_status) {
787		/* SW interrupt */
788		if (G_000044_SW_INT(status)) {
789			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
790		}
791		/* Vertical blank interrupts */
792		if (G_007EDC_LB_D1_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
793			if (rdev->irq.crtc_vblank_int[0]) {
794				drm_handle_vblank(rdev->ddev, 0);
795				rdev->pm.vblank_sync = true;
796				wake_up(&rdev->irq.vblank_queue);
797			}
798			if (atomic_read(&rdev->irq.pflip[0]))
799				radeon_crtc_handle_vblank(rdev, 0);
800		}
801		if (G_007EDC_LB_D2_VBLANK_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
802			if (rdev->irq.crtc_vblank_int[1]) {
803				drm_handle_vblank(rdev->ddev, 1);
804				rdev->pm.vblank_sync = true;
805				wake_up(&rdev->irq.vblank_queue);
806			}
807			if (atomic_read(&rdev->irq.pflip[1]))
808				radeon_crtc_handle_vblank(rdev, 1);
809		}
810		if (G_007EDC_DC_HOT_PLUG_DETECT1_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
811			queue_hotplug = true;
812			DRM_DEBUG("HPD1\n");
813		}
814		if (G_007EDC_DC_HOT_PLUG_DETECT2_INTERRUPT(rdev->irq.stat_regs.r500.disp_int)) {
815			queue_hotplug = true;
816			DRM_DEBUG("HPD2\n");
817		}
818		if (G_007404_HDMI0_AZ_FORMAT_WTRIG(rdev->irq.stat_regs.r500.hdmi0_status)) {
819			queue_hdmi = true;
820			DRM_DEBUG("HDMI0\n");
821		}
822		status = rs600_irq_ack(rdev);
823	}
824	if (queue_hotplug)
825		schedule_delayed_work(&rdev->hotplug_work, 0);
826	if (queue_hdmi)
827		schedule_work(&rdev->audio_work);
828	if (rdev->msi_enabled) {
829		switch (rdev->family) {
830		case CHIP_RS600:
831		case CHIP_RS690:
832		case CHIP_RS740:
833			msi_rearm = RREG32(RADEON_BUS_CNTL) & ~RS600_MSI_REARM;
834			WREG32(RADEON_BUS_CNTL, msi_rearm);
835			WREG32(RADEON_BUS_CNTL, msi_rearm | RS600_MSI_REARM);
836			break;
837		default:
838			WREG32(RADEON_MSI_REARM_EN, RV370_MSI_REARM_EN);
839			break;
840		}
841	}
842	return IRQ_HANDLED;
843}
844
845u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
846{
847	if (crtc == 0)
848		return RREG32(R_0060A4_D1CRTC_STATUS_FRAME_COUNT);
849	else
850		return RREG32(R_0068A4_D2CRTC_STATUS_FRAME_COUNT);
851}
852
853int rs600_mc_wait_for_idle(struct radeon_device *rdev)
854{
855	unsigned i;
856
857	for (i = 0; i < rdev->usec_timeout; i++) {
858		if (G_000000_MC_IDLE(RREG32_MC(R_000000_MC_STATUS)))
859			return 0;
860		udelay(1);
861	}
862	return -1;
863}
864
865static void rs600_gpu_init(struct radeon_device *rdev)
866{
867	r420_pipes_init(rdev);
868	/* Wait for mc idle */
869	if (rs600_mc_wait_for_idle(rdev))
870		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
871}
872
873static void rs600_mc_init(struct radeon_device *rdev)
874{
875	u64 base;
876
877	rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
878	rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
879	rdev->mc.vram_is_ddr = true;
880	rdev->mc.vram_width = 128;
881	rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
882	rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
883	rdev->mc.visible_vram_size = rdev->mc.aper_size;
884	rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
885	base = RREG32_MC(R_000004_MC_FB_LOCATION);
886	base = G_000004_MC_FB_START(base) << 16;
887	radeon_vram_location(rdev, &rdev->mc, base);
888	rdev->mc.gtt_base_align = 0;
889	radeon_gtt_location(rdev, &rdev->mc);
890	radeon_update_bandwidth_info(rdev);
891}
892
893void rs600_bandwidth_update(struct radeon_device *rdev)
894{
895	struct drm_display_mode *mode0 = NULL;
896	struct drm_display_mode *mode1 = NULL;
897	u32 d1mode_priority_a_cnt, d2mode_priority_a_cnt;
898	/* FIXME: implement full support */
899
900	if (!rdev->mode_info.mode_config_initialized)
901		return;
902
903	radeon_update_display_priority(rdev);
904
905	if (rdev->mode_info.crtcs[0]->base.enabled)
906		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
907	if (rdev->mode_info.crtcs[1]->base.enabled)
908		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
909
910	rs690_line_buffer_adjust(rdev, mode0, mode1);
911
912	if (rdev->disp_priority == 2) {
913		d1mode_priority_a_cnt = RREG32(R_006548_D1MODE_PRIORITY_A_CNT);
914		d2mode_priority_a_cnt = RREG32(R_006D48_D2MODE_PRIORITY_A_CNT);
915		d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
916		d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
917		WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
918		WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
919		WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
920		WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
921	}
922}
923
924uint32_t rs600_mc_rreg(struct radeon_device *rdev, uint32_t reg)
925{
926	unsigned long flags;
927	u32 r;
928
929	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
930	WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
931		S_000070_MC_IND_CITF_ARB0(1));
932	r = RREG32(R_000074_MC_IND_DATA);
933	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
934	return r;
935}
936
937void rs600_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
938{
939	unsigned long flags;
940
941	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
942	WREG32(R_000070_MC_IND_INDEX, S_000070_MC_IND_ADDR(reg) |
943		S_000070_MC_IND_CITF_ARB0(1) | S_000070_MC_IND_WR_EN(1));
944	WREG32(R_000074_MC_IND_DATA, v);
945	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
946}
947
948static void rs600_debugfs(struct radeon_device *rdev)
949{
950	if (r100_debugfs_rbbm_init(rdev))
951		DRM_ERROR("Failed to register debugfs file for RBBM !\n");
952}
953
954void rs600_set_safe_registers(struct radeon_device *rdev)
955{
956	rdev->config.r300.reg_safe_bm = rs600_reg_safe_bm;
957	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rs600_reg_safe_bm);
958}
959
960static void rs600_mc_program(struct radeon_device *rdev)
961{
962	struct rv515_mc_save save;
963
964	/* Stops all mc clients */
965	rv515_mc_stop(rdev, &save);
966
967	/* Wait for mc idle */
968	if (rs600_mc_wait_for_idle(rdev))
969		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
970
971	/* FIXME: What does AGP means for such chipset ? */
972	WREG32_MC(R_000005_MC_AGP_LOCATION, 0x0FFFFFFF);
973	WREG32_MC(R_000006_AGP_BASE, 0);
974	WREG32_MC(R_000007_AGP_BASE_2, 0);
975	/* Program MC */
976	WREG32_MC(R_000004_MC_FB_LOCATION,
977			S_000004_MC_FB_START(rdev->mc.vram_start >> 16) |
978			S_000004_MC_FB_TOP(rdev->mc.vram_end >> 16));
979	WREG32(R_000134_HDP_FB_LOCATION,
980		S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
981
982	rv515_mc_resume(rdev, &save);
983}
984
985static int rs600_startup(struct radeon_device *rdev)
986{
987	int r;
988
989	rs600_mc_program(rdev);
990	/* Resume clock */
991	rv515_clock_startup(rdev);
992	/* Initialize GPU configuration (# pipes, ...) */
993	rs600_gpu_init(rdev);
994	/* Initialize GART (initialize after TTM so we can allocate
995	 * memory through TTM but finalize after TTM) */
996	r = rs600_gart_enable(rdev);
997	if (r)
998		return r;
999
1000	/* allocate wb buffer */
1001	r = radeon_wb_init(rdev);
1002	if (r)
1003		return r;
1004
1005	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1006	if (r) {
1007		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1008		return r;
1009	}
1010
1011	/* Enable IRQ */
1012	if (!rdev->irq.installed) {
1013		r = radeon_irq_kms_init(rdev);
1014		if (r)
1015			return r;
1016	}
1017
1018	rs600_irq_set(rdev);
1019	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
1020	/* 1M ring buffer */
1021	r = r100_cp_init(rdev, 1024 * 1024);
1022	if (r) {
1023		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
1024		return r;
1025	}
1026
1027	r = radeon_ib_pool_init(rdev);
1028	if (r) {
1029		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1030		return r;
1031	}
1032
1033	r = radeon_audio_init(rdev);
1034	if (r) {
1035		dev_err(rdev->dev, "failed initializing audio\n");
1036		return r;
1037	}
1038
1039	return 0;
1040}
1041
1042int rs600_resume(struct radeon_device *rdev)
1043{
1044	int r;
1045
1046	/* Make sur GART are not working */
1047	rs600_gart_disable(rdev);
1048	/* Resume clock before doing reset */
1049	rv515_clock_startup(rdev);
1050	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1051	if (radeon_asic_reset(rdev)) {
1052		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1053			RREG32(R_000E40_RBBM_STATUS),
1054			RREG32(R_0007C0_CP_STAT));
1055	}
1056	/* post */
1057	atom_asic_init(rdev->mode_info.atom_context);
1058	/* Resume clock after posting */
1059	rv515_clock_startup(rdev);
1060	/* Initialize surface registers */
1061	radeon_surface_init(rdev);
1062
1063	rdev->accel_working = true;
1064	r = rs600_startup(rdev);
1065	if (r) {
1066		rdev->accel_working = false;
1067	}
1068	return r;
1069}
1070
1071int rs600_suspend(struct radeon_device *rdev)
1072{
1073	radeon_pm_suspend(rdev);
1074	radeon_audio_fini(rdev);
1075	r100_cp_disable(rdev);
1076	radeon_wb_disable(rdev);
1077	rs600_irq_disable(rdev);
1078	rs600_gart_disable(rdev);
1079	return 0;
1080}
1081
1082void rs600_fini(struct radeon_device *rdev)
1083{
1084	radeon_pm_fini(rdev);
1085	radeon_audio_fini(rdev);
1086	r100_cp_fini(rdev);
1087	radeon_wb_fini(rdev);
1088	radeon_ib_pool_fini(rdev);
1089	radeon_gem_fini(rdev);
1090	rs600_gart_fini(rdev);
1091	radeon_irq_kms_fini(rdev);
1092	radeon_fence_driver_fini(rdev);
1093	radeon_bo_fini(rdev);
1094	radeon_atombios_fini(rdev);
1095	kfree(rdev->bios);
1096	rdev->bios = NULL;
1097}
1098
1099int rs600_init(struct radeon_device *rdev)
1100{
1101	int r;
1102
1103	/* Disable VGA */
1104	rv515_vga_render_disable(rdev);
1105	/* Initialize scratch registers */
1106	radeon_scratch_init(rdev);
1107	/* Initialize surface registers */
1108	radeon_surface_init(rdev);
1109	/* restore some register to sane defaults */
1110	r100_restore_sanity(rdev);
1111	/* BIOS */
1112	if (!radeon_get_bios(rdev)) {
1113		if (ASIC_IS_AVIVO(rdev))
1114			return -EINVAL;
1115	}
1116	if (rdev->is_atom_bios) {
1117		r = radeon_atombios_init(rdev);
1118		if (r)
1119			return r;
1120	} else {
1121		dev_err(rdev->dev, "Expecting atombios for RS600 GPU\n");
1122		return -EINVAL;
1123	}
1124	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1125	if (radeon_asic_reset(rdev)) {
1126		dev_warn(rdev->dev,
1127			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1128			RREG32(R_000E40_RBBM_STATUS),
1129			RREG32(R_0007C0_CP_STAT));
1130	}
1131	/* check if cards are posted or not */
1132	if (radeon_boot_test_post_card(rdev) == false)
1133		return -EINVAL;
1134
1135	/* Initialize clocks */
1136	radeon_get_clock_info(rdev->ddev);
1137	/* initialize memory controller */
1138	rs600_mc_init(rdev);
1139	rs600_debugfs(rdev);
1140	/* Fence driver */
1141	r = radeon_fence_driver_init(rdev);
1142	if (r)
1143		return r;
1144	/* Memory manager */
1145	r = radeon_bo_init(rdev);
1146	if (r)
1147		return r;
1148	r = rs600_gart_init(rdev);
1149	if (r)
1150		return r;
1151	rs600_set_safe_registers(rdev);
1152
1153	/* Initialize power management */
1154	radeon_pm_init(rdev);
1155
1156	rdev->accel_working = true;
1157	r = rs600_startup(rdev);
1158	if (r) {
1159		/* Somethings want wront with the accel init stop accel */
1160		dev_err(rdev->dev, "Disabling GPU acceleration\n");
1161		r100_cp_fini(rdev);
1162		radeon_wb_fini(rdev);
1163		radeon_ib_pool_fini(rdev);
1164		rs600_gart_fini(rdev);
1165		radeon_irq_kms_fini(rdev);
1166		rdev->accel_working = false;
1167	}
1168	return 0;
1169}
1170