2 * Copyright 2007 Jérôme Glisse
3 * Copyright 2007 Alex Deucher
4 * Copyright 2007 Dave Airlie
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation on the rights to use, copy, modify, merge,
11 * publish, distribute, sublicense, and/or sell copies of the Software,
12 * and to permit persons to whom the Software is furnished to do so,
13 * subject to the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NON-INFRINGEMENT. IN NO EVENT SHALL ATI, VA LINUX SYSTEMS AND/OR
23 * THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26 * DEALINGS IN THE SOFTWARE.
28 #include "radeon_ms.h"
30 static int radeon_ms_gpu_address_space_init(struct drm_device *dev)
32 struct drm_radeon_private *dev_priv = dev->dev_private;
33 struct radeon_state *state = &dev_priv->driver_state;
35 /* initialize gpu mapping */
36 dev_priv->gpu_vram_start = dev_priv->vram.offset;
37 dev_priv->gpu_vram_end = dev_priv->gpu_vram_start + dev_priv->vram.size;
38 /* align it on 16Mo boundary (clamp memory which is then
39 * unreachable but not manufacturer should use strange
41 dev_priv->gpu_vram_end = dev_priv->gpu_vram_end & (~0xFFFFFF);
42 dev_priv->gpu_vram_end -= 1;
43 dev_priv->gpu_vram_size = dev_priv->gpu_vram_end -
44 dev_priv->gpu_vram_start + 1;
45 /* set gart size to 32Mo FIXME: should make a parameter for this */
46 dev_priv->gpu_gart_size = 1024 * 1024 * 32;
47 if (dev_priv->gpu_gart_size > (0xffffffffU - dev_priv->gpu_vram_end)) {
48 /* align gart start to next 4Ko in gpu address space */
49 dev_priv->gpu_gart_start = (dev_priv->gpu_vram_end + 1) + 0xfff;
50 dev_priv->gpu_gart_start = dev_priv->gpu_gart_start & (~0xfff);
51 dev_priv->gpu_gart_end = dev_priv->gpu_gart_start +
52 dev_priv->gpu_gart_size;
53 dev_priv->gpu_gart_end = (dev_priv->gpu_gart_end & (~0xfff)) -
56 /* align gart start to next 4Ko in gpu address space */
57 dev_priv->gpu_gart_start = (dev_priv->gpu_vram_start & ~0xfff) -
58 dev_priv->gpu_gart_size;
59 dev_priv->gpu_gart_start = dev_priv->gpu_gart_start & (~0xfff);
60 dev_priv->gpu_gart_end = dev_priv->gpu_gart_start +
61 dev_priv->gpu_gart_size;
62 dev_priv->gpu_gart_end = (dev_priv->gpu_gart_end & (~0xfff)) -
65 state->mc_fb_location =
66 REG_S(MC_FB_LOCATION, MC_FB_START,
67 dev_priv->gpu_vram_start >> 16) |
68 REG_S(MC_FB_LOCATION, MC_FB_TOP, dev_priv->gpu_vram_end >> 16);
69 state->display_base_addr =
70 REG_S(DISPLAY_BASE_ADDR, DISPLAY_BASE_ADDR,
71 dev_priv->gpu_vram_start);
72 state->config_aper_0_base = dev_priv->gpu_vram_start;
73 state->config_aper_1_base = dev_priv->gpu_vram_start;
74 state->config_aper_size = dev_priv->gpu_vram_size;
75 DRM_INFO("[radeon_ms] gpu vram start 0x%08X\n",
76 dev_priv->gpu_vram_start);
77 DRM_INFO("[radeon_ms] gpu vram end 0x%08X\n",
78 dev_priv->gpu_vram_end);
79 DRM_INFO("[radeon_ms] gpu gart start 0x%08X\n",
80 dev_priv->gpu_gart_start);
81 DRM_INFO("[radeon_ms] gpu gart end 0x%08X\n",
82 dev_priv->gpu_gart_end);
86 static void radeon_ms_gpu_reset(struct drm_device *dev)
88 struct drm_radeon_private *dev_priv = dev->dev_private;
89 uint32_t clock_cntl_index, mclk_cntl, rbbm_soft_reset;
90 uint32_t reset_mask, host_path_cntl, cache_mode;
92 radeon_ms_cp_stop(dev);
93 radeon_ms_gpu_flush(dev);
96 clock_cntl_index = MMIO_R(CLOCK_CNTL_INDEX);
97 pll_index_errata(dev_priv);
98 mclk_cntl = PPLL_R(MCLK_CNTL);
101 MCLK_CNTL__FORCE_MCLKA |
102 MCLK_CNTL__FORCE_MCLKB |
103 MCLK_CNTL__FORCE_YCLKA |
104 MCLK_CNTL__FORCE_YCLKB |
105 MCLK_CNTL__FORCE_MC |
106 MCLK_CNTL__FORCE_AIC);
109 SCLK_CNTL__FORCE_CP |
110 SCLK_CNTL__FORCE_VIP);
112 /* Soft resetting HDP thru RBBM_SOFT_RESET register can cause some
113 * unexpected behaviour on some machines. Here we use
114 * RADEON_HOST_PATH_CNTL to reset it.
116 host_path_cntl = MMIO_R(HOST_PATH_CNTL);
117 rbbm_soft_reset = MMIO_R(RBBM_SOFT_RESET);
118 reset_mask = RBBM_SOFT_RESET__SOFT_RESET_CP |
119 RBBM_SOFT_RESET__SOFT_RESET_HI |
120 RBBM_SOFT_RESET__SOFT_RESET_VAP |
121 RBBM_SOFT_RESET__SOFT_RESET_SE |
122 RBBM_SOFT_RESET__SOFT_RESET_RE |
123 RBBM_SOFT_RESET__SOFT_RESET_PP |
124 RBBM_SOFT_RESET__SOFT_RESET_E2 |
125 RBBM_SOFT_RESET__SOFT_RESET_RB;
126 MMIO_W(RBBM_SOFT_RESET, rbbm_soft_reset | reset_mask);
127 MMIO_R(RBBM_SOFT_RESET);
128 MMIO_W(RBBM_SOFT_RESET, 0);
129 MMIO_R(RBBM_SOFT_RESET);
131 cache_mode = MMIO_R(RB2D_DSTCACHE_MODE);
132 MMIO_W(RB2D_DSTCACHE_MODE,
133 cache_mode | RB2D_DSTCACHE_MODE__DC_DISABLE_IGNORE_PE);
135 MMIO_W(HOST_PATH_CNTL, host_path_cntl | HOST_PATH_CNTL__HDP_SOFT_RESET);
136 MMIO_R(HOST_PATH_CNTL);
137 MMIO_W(HOST_PATH_CNTL, host_path_cntl);
138 MMIO_R(HOST_PATH_CNTL);
140 MMIO_W(CLOCK_CNTL_INDEX, clock_cntl_index);
141 pll_index_errata(dev_priv);
142 PPLL_W(MCLK_CNTL, mclk_cntl);
145 static void radeon_ms_gpu_resume(struct drm_device *dev)
147 struct drm_radeon_private *dev_priv = dev->dev_private;
151 /* make sure we have sane offset before restoring crtc */
152 a = (MMIO_R(MC_FB_LOCATION) & MC_FB_LOCATION__MC_FB_START__MASK) << 16;
153 MMIO_W(DISPLAY_BASE_ADDR, a);
154 MMIO_W(CRTC2_DISPLAY_BASE_ADDR, a);
155 MMIO_W(CRTC_OFFSET, 0);
156 MMIO_W(CUR_OFFSET, 0);
157 MMIO_W(CRTC_OFFSET_CNTL, CRTC_OFFSET_CNTL__CRTC_OFFSET_FLIP_CNTL);
158 MMIO_W(CRTC2_OFFSET, 0);
159 MMIO_W(CUR2_OFFSET, 0);
160 MMIO_W(CRTC2_OFFSET_CNTL, CRTC2_OFFSET_CNTL__CRTC2_OFFSET_FLIP_CNTL);
161 for (i = 0; i < dev_priv->usec_timeout; i++) {
162 if (!(CRTC_OFFSET__CRTC_GUI_TRIG_OFFSET &
163 MMIO_R(CRTC_OFFSET))) {
168 if (i >= dev_priv->usec_timeout) {
169 DRM_ERROR("[radeon_ms] timeout waiting for crtc...\n");
171 for (i = 0; i < dev_priv->usec_timeout; i++) {
172 if (!(CRTC2_OFFSET__CRTC2_GUI_TRIG_OFFSET &
173 MMIO_R(CRTC2_OFFSET))) {
178 if (i >= dev_priv->usec_timeout) {
179 DRM_ERROR("[radeon_ms] timeout waiting for crtc...\n");
184 static void radeon_ms_gpu_stop(struct drm_device *dev)
186 struct drm_radeon_private *dev_priv = dev->dev_private;
187 uint32_t ov0_scale_cntl, crtc_ext_cntl, crtc_gen_cntl;
188 uint32_t crtc2_gen_cntl, i;
190 radeon_ms_wait_for_idle(dev);
191 /* Capture MC_STATUS in case things go wrong ... */
192 ov0_scale_cntl = dev_priv->ov0_scale_cntl = MMIO_R(OV0_SCALE_CNTL);
193 crtc_ext_cntl = dev_priv->crtc_ext_cntl = MMIO_R(CRTC_EXT_CNTL);
194 crtc_gen_cntl = dev_priv->crtc_gen_cntl = MMIO_R(CRTC_GEN_CNTL);
195 crtc2_gen_cntl = dev_priv->crtc2_gen_cntl = MMIO_R(CRTC2_GEN_CNTL);
196 ov0_scale_cntl &= ~OV0_SCALE_CNTL__OV0_OVERLAY_EN__MASK;
197 crtc_ext_cntl |= CRTC_EXT_CNTL__CRTC_DISPLAY_DIS;
198 crtc_gen_cntl &= ~CRTC_GEN_CNTL__CRTC_CUR_EN;
199 crtc_gen_cntl &= ~CRTC_GEN_CNTL__CRTC_ICON_EN;
200 crtc_gen_cntl |= CRTC_GEN_CNTL__CRTC_EXT_DISP_EN;
201 crtc_gen_cntl |= CRTC_GEN_CNTL__CRTC_DISP_REQ_EN_B;
202 crtc2_gen_cntl &= ~CRTC2_GEN_CNTL__CRTC2_CUR_EN;
203 crtc2_gen_cntl &= ~CRTC2_GEN_CNTL__CRTC2_ICON_EN;
204 crtc2_gen_cntl |= CRTC2_GEN_CNTL__CRTC2_DISP_REQ_EN_B;
205 MMIO_W(OV0_SCALE_CNTL, ov0_scale_cntl);
206 MMIO_W(CRTC_EXT_CNTL, crtc_ext_cntl);
207 MMIO_W(CRTC_GEN_CNTL, crtc_gen_cntl);
208 MMIO_W(CRTC2_GEN_CNTL, crtc2_gen_cntl);
210 switch (dev_priv->family) {
217 for (i = 0; i < dev_priv->usec_timeout; i++) {
218 if ((MC_STATUS__MC_IDLE & MMIO_R(MC_STATUS))) {
219 DRM_INFO("[radeon_ms] gpu stoped in %d usecs\n",
237 for (i = 0; i < dev_priv->usec_timeout; i++) {
238 if ((MC_STATUS__MC_IDLE_R3 & MMIO_R(MC_STATUS))) {
239 DRM_INFO("[radeon_ms] gpu stoped in %d usecs\n",
247 DRM_ERROR("Unknown radeon family, aborting\n");
250 DRM_ERROR("[radeon_ms] failed to stop gpu...will proceed anyway\n");
254 static int radeon_ms_wait_for_fifo(struct drm_device *dev, int num_fifo)
256 struct drm_radeon_private *dev_priv = dev->dev_private;
259 for (i = 0; i < dev_priv->usec_timeout; i++) {
261 t = RBBM_STATUS__CMDFIFO_AVAIL__MASK & MMIO_R(RBBM_STATUS);
262 t = t >> RBBM_STATUS__CMDFIFO_AVAIL__SHIFT;
267 DRM_ERROR("[radeon_ms] failed to wait for fifo\n");
271 int radeon_ms_gpu_initialize(struct drm_device *dev)
273 struct drm_radeon_private *dev_priv = dev->dev_private;
274 struct radeon_state *state = &dev_priv->driver_state;
277 state->disp_misc_cntl = DISP_MISC_CNTL__SYNC_PAD_FLOP_EN |
278 REG_S(DISP_MISC_CNTL, SYNC_STRENGTH, 2) |
279 REG_S(DISP_MISC_CNTL, PALETTE_MEM_RD_MARGIN, 0xb) |
280 REG_S(DISP_MISC_CNTL, PALETTE2_MEM_RD_MARGIN, 0xb) |
281 REG_S(DISP_MISC_CNTL, RMX_BUF_MEM_RD_MARGIN, 0x5);
282 state->disp_merge_cntl = REG_S(DISP_MERGE_CNTL, DISP_GRPH_ALPHA, 0xff) |
283 REG_S(DISP_MERGE_CNTL, DISP_OV0_ALPHA, 0xff);
284 state->disp_pwr_man = DISP_PWR_MAN__DISP_PWR_MAN_D3_CRTC_EN |
285 DISP_PWR_MAN__DISP2_PWR_MAN_D3_CRTC2_EN |
286 REG_S(DISP_PWR_MAN, DISP_PWR_MAN_DPMS, DISP_PWR_MAN_DPMS__OFF) |
287 DISP_PWR_MAN__DISP_D3_RST |
288 DISP_PWR_MAN__DISP_D3_REG_RST |
289 DISP_PWR_MAN__DISP_D3_GRPH_RST |
290 DISP_PWR_MAN__DISP_D3_SUBPIC_RST |
291 DISP_PWR_MAN__DISP_D3_OV0_RST |
292 DISP_PWR_MAN__DISP_D1D2_GRPH_RST |
293 DISP_PWR_MAN__DISP_D1D2_SUBPIC_RST |
294 DISP_PWR_MAN__DISP_D1D2_OV0_RST |
295 DISP_PWR_MAN__DISP_DVO_ENABLE_RST |
296 DISP_PWR_MAN__TV_ENABLE_RST;
297 state->disp2_merge_cntl = 0;
298 ret = radeon_ms_gpu_address_space_init(dev);
304 ret = dev_priv->bus_init(dev);
311 void radeon_ms_gpu_dpms(struct drm_device *dev)
313 struct drm_radeon_private *dev_priv = dev->dev_private;
314 struct radeon_state *state = &dev_priv->driver_state;
316 if (dev_priv->crtc1_dpms == dev_priv->crtc2_dpms) {
317 /* both crtc are in same state so use global display pwr */
318 state->disp_pwr_man &= ~DISP_PWR_MAN__DISP_PWR_MAN_DPMS__MASK;
319 switch(dev_priv->crtc1_dpms) {
321 state->disp_pwr_man |= REG_S(DISP_PWR_MAN,
323 DISP_PWR_MAN_DPMS__ON);
325 case DPMSModeStandby:
326 state->disp_pwr_man |= REG_S(DISP_PWR_MAN,
328 DISP_PWR_MAN_DPMS__STANDBY);
330 case DPMSModeSuspend:
331 state->disp_pwr_man |= REG_S(DISP_PWR_MAN,
333 DISP_PWR_MAN_DPMS__SUSPEND);
336 state->disp_pwr_man |= REG_S(DISP_PWR_MAN,
338 DISP_PWR_MAN_DPMS__OFF);
344 MMIO_W(DISP_PWR_MAN, state->disp_pwr_man);
346 state->disp_pwr_man &= ~DISP_PWR_MAN__DISP_PWR_MAN_DPMS__MASK;
347 state->disp_pwr_man |= REG_S(DISP_PWR_MAN,
349 DISP_PWR_MAN_DPMS__ON);
350 MMIO_W(DISP_PWR_MAN, state->disp_pwr_man);
354 void radeon_ms_gpu_flush(struct drm_device *dev)
356 struct drm_radeon_private *dev_priv = dev->dev_private;
361 switch (dev_priv->family) {
368 purge2d = REG_S(RB2D_DSTCACHE_CTLSTAT, DC_FLUSH, 3) |
369 REG_S(RB2D_DSTCACHE_CTLSTAT, DC_FREE, 3);
370 purge3d = REG_S(RB3D_DSTCACHE_CTLSTAT, DC_FLUSH, 3) |
371 REG_S(RB3D_DSTCACHE_CTLSTAT, DC_FREE, 3);
372 MMIO_W(RB2D_DSTCACHE_CTLSTAT, purge2d);
373 MMIO_W(RB3D_DSTCACHE_CTLSTAT, purge3d);
386 purge2d = REG_S(RB2D_DSTCACHE_CTLSTAT, DC_FLUSH, 3) |
387 REG_S(RB2D_DSTCACHE_CTLSTAT, DC_FREE, 3);
388 purge3d = REG_S(RB3D_DSTCACHE_CTLSTAT_R3, DC_FLUSH, 3) |
389 REG_S(RB3D_DSTCACHE_CTLSTAT_R3, DC_FREE, 3);
390 MMIO_W(RB2D_DSTCACHE_CTLSTAT, purge2d);
391 MMIO_W(RB3D_DSTCACHE_CTLSTAT_R3, purge3d);
394 DRM_ERROR("Unknown radeon family, aborting\n");
397 for (i = 0; i < dev_priv->usec_timeout; i++) {
398 if (!(RB2D_DSTCACHE_CTLSTAT__DC_BUSY &
399 MMIO_R(RB2D_DSTCACHE_CTLSTAT))) {
404 DRM_ERROR("[radeon_ms] gpu flush timeout\n");
407 void radeon_ms_gpu_restore(struct drm_device *dev, struct radeon_state *state)
409 struct drm_radeon_private *dev_priv = dev->dev_private;
414 radeon_ms_gpu_reset(dev);
415 radeon_ms_wait_for_idle(dev);
416 radeon_ms_gpu_stop(dev);
418 MMIO_W(AIC_CTRL, state->aic_ctrl);
419 MMIO_W(MC_FB_LOCATION, state->mc_fb_location);
420 MMIO_R(MC_FB_LOCATION);
421 MMIO_W(CONFIG_APER_0_BASE, state->config_aper_0_base);
422 MMIO_W(CONFIG_APER_1_BASE, state->config_aper_1_base);
423 MMIO_W(CONFIG_APER_SIZE, state->config_aper_size);
424 MMIO_W(DISPLAY_BASE_ADDR, state->display_base_addr);
425 if (dev_priv->bus_restore) {
426 dev_priv->bus_restore(dev, state);
429 radeon_ms_gpu_reset(dev);
430 radeon_ms_gpu_resume(dev);
432 MMIO_W(BUS_CNTL, state->bus_cntl);
433 wait_until = WAIT_UNTIL__WAIT_DMA_VIPH0_IDLE |
434 WAIT_UNTIL__WAIT_DMA_VIPH1_IDLE |
435 WAIT_UNTIL__WAIT_DMA_VIPH2_IDLE |
436 WAIT_UNTIL__WAIT_DMA_VIPH3_IDLE |
437 WAIT_UNTIL__WAIT_DMA_VID_IDLE |
438 WAIT_UNTIL__WAIT_DMA_GUI_IDLE |
439 WAIT_UNTIL__WAIT_2D_IDLE |
440 WAIT_UNTIL__WAIT_3D_IDLE |
441 WAIT_UNTIL__WAIT_2D_IDLECLEAN |
442 WAIT_UNTIL__WAIT_3D_IDLECLEAN |
443 WAIT_UNTIL__WAIT_HOST_IDLECLEAN;
444 switch (dev_priv->family) {
463 wait_until |= WAIT_UNTIL__WAIT_VAP_IDLE;
466 MMIO_W(WAIT_UNTIL, wait_until);
467 MMIO_W(DISP_MISC_CNTL, state->disp_misc_cntl);
468 MMIO_W(DISP_PWR_MAN, state->disp_pwr_man);
469 MMIO_W(DISP_MERGE_CNTL, state->disp_merge_cntl);
470 MMIO_W(DISP_OUTPUT_CNTL, state->disp_output_cntl);
471 MMIO_W(DISP2_MERGE_CNTL, state->disp2_merge_cntl);
473 /* Setup engine location. This shouldn't be necessary since we
474 * set them appropriately before any accel ops, but let's avoid
475 * random bogus DMA in case we inadvertently trigger the engine
476 * in the wrong place (happened).
478 ret = radeon_ms_wait_for_fifo(dev, 2);
481 DRM_ERROR("[radeon_ms] no fifo for setting up dst & src gui\n");
482 DRM_ERROR("[radeon_ms] proceed anyway\n");
484 fbstart = (MC_FB_LOCATION__MC_FB_START__MASK &
485 MMIO_R(MC_FB_LOCATION)) << 16;
486 MMIO_W(DST_PITCH_OFFSET,
487 REG_S(DST_PITCH_OFFSET, DST_OFFSET, fbstart >> 10));
488 MMIO_W(SRC_PITCH_OFFSET,
489 REG_S(SRC_PITCH_OFFSET, SRC_OFFSET, fbstart >> 10));
491 ret = radeon_ms_wait_for_fifo(dev, 1);
494 DRM_ERROR("[radeon_ms] no fifo for setting up dp data type\n");
495 DRM_ERROR("[radeon_ms] proceed anyway\n");
498 MMIO_W(DP_DATATYPE, DP_DATATYPE__DP_BYTE_PIX_ORDER);
500 MMIO_W(DP_DATATYPE, 0);
503 ret = radeon_ms_wait_for_fifo(dev, 1);
506 DRM_ERROR("[radeon_ms] no fifo for setting up surface cntl\n");
507 DRM_ERROR("[radeon_ms] proceed anyway\n");
509 MMIO_W(SURFACE_CNTL, SURFACE_CNTL__SURF_TRANSLATION_DIS);
511 ret = radeon_ms_wait_for_fifo(dev, 2);
514 DRM_ERROR("[radeon_ms] no fifo for setting scissor\n");
515 DRM_ERROR("[radeon_ms] proceed anyway\n");
517 MMIO_W(DEFAULT_SC_BOTTOM_RIGHT, 0x1fff1fff);
518 MMIO_W(DEFAULT2_SC_BOTTOM_RIGHT, 0x1fff1fff);
520 ret = radeon_ms_wait_for_fifo(dev, 1);
523 DRM_ERROR("[radeon_ms] no fifo for setting up gui cntl\n");
524 DRM_ERROR("[radeon_ms] proceed anyway\n");
526 MMIO_W(DP_GUI_MASTER_CNTL, 0);
528 ret = radeon_ms_wait_for_fifo(dev, 5);
531 DRM_ERROR("[radeon_ms] no fifo for setting up clear color\n");
532 DRM_ERROR("[radeon_ms] proceed anyway\n");
534 MMIO_W(DP_BRUSH_BKGD_CLR, 0x00000000);
535 MMIO_W(DP_BRUSH_FRGD_CLR, 0xffffffff);
536 MMIO_W(DP_SRC_BKGD_CLR, 0x00000000);
537 MMIO_W(DP_SRC_FRGD_CLR, 0xffffffff);
538 MMIO_W(DP_WRITE_MSK, 0xffffffff);
541 DRM_ERROR("[radeon_ms] engine restore not enough fifo\n");
545 void radeon_ms_gpu_save(struct drm_device *dev, struct radeon_state *state)
547 struct drm_radeon_private *dev_priv = dev->dev_private;
549 state->aic_ctrl = MMIO_R(AIC_CTRL);
550 state->bus_cntl = MMIO_R(BUS_CNTL);
551 state->mc_fb_location = MMIO_R(MC_FB_LOCATION);
552 state->display_base_addr = MMIO_R(DISPLAY_BASE_ADDR);
553 state->config_aper_0_base = MMIO_R(CONFIG_APER_0_BASE);
554 state->config_aper_1_base = MMIO_R(CONFIG_APER_1_BASE);
555 state->config_aper_size = MMIO_R(CONFIG_APER_SIZE);
556 state->disp_misc_cntl = MMIO_R(DISP_MISC_CNTL);
557 state->disp_pwr_man = MMIO_R(DISP_PWR_MAN);
558 state->disp_merge_cntl = MMIO_R(DISP_MERGE_CNTL);
559 state->disp_output_cntl = MMIO_R(DISP_OUTPUT_CNTL);
560 state->disp2_merge_cntl = MMIO_R(DISP2_MERGE_CNTL);
561 if (dev_priv->bus_save) {
562 dev_priv->bus_save(dev, state);
566 int radeon_ms_wait_for_idle(struct drm_device *dev)
568 struct drm_radeon_private *dev_priv = dev->dev_private;
571 for (i = 0; i < 2; i++) {
572 ret = radeon_ms_wait_for_fifo(dev, 64);
574 DRM_ERROR("[radeon_ms] fifo not empty\n");
576 for (j = 0; j < dev_priv->usec_timeout; j++) {
577 if (!(RBBM_STATUS__GUI_ACTIVE & MMIO_R(RBBM_STATUS))) {
578 radeon_ms_gpu_flush(dev);
583 DRM_ERROR("[radeon_ms] idle timed out: status=0x%08x\n",
584 MMIO_R(RBBM_STATUS));
585 radeon_ms_gpu_stop(dev);
586 radeon_ms_gpu_reset(dev);