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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / gpu / drm / radeon / radeon_clocks.c
blobb6e18c8db9f53511e2141a0f20aa2ec2880b263d
1 /*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alex Deucher
26 * Jerome Glisse
27 */
28 #include "drmP.h"
29 #include "radeon_drm.h"
30 #include "radeon_reg.h"
31 #include "radeon.h"
32 #include "atom.h"
33
34 /* 10 khz */
35 uint32_t radeon_legacy_get_engine_clock(struct radeon_device *rdev)
36 {
37 struct radeon_pll *spll = &rdev->clock.spll;
38 uint32_t fb_div, ref_div, post_div, sclk;
39
40 fb_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
41 fb_div = (fb_div >> RADEON_SPLL_FB_DIV_SHIFT) & RADEON_SPLL_FB_DIV_MASK;
42 fb_div <<= 1;
43 fb_div *= spll->reference_freq;
44
45 ref_div =
46 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
47
48 if (ref_div == 0)
49 return 0;
50
51 sclk = fb_div / ref_div;
52
53 post_div = RREG32_PLL(RADEON_SCLK_CNTL) & RADEON_SCLK_SRC_SEL_MASK;
54 if (post_div == 2)
55 sclk >>= 1;
56 else if (post_div == 3)
57 sclk >>= 2;
58 else if (post_div == 4)
59 sclk >>= 3;
60
61 return sclk;
62 }
63
64 /* 10 khz */
65 uint32_t radeon_legacy_get_memory_clock(struct radeon_device *rdev)
66 {
67 struct radeon_pll *mpll = &rdev->clock.mpll;
68 uint32_t fb_div, ref_div, post_div, mclk;
69
70 fb_div = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
71 fb_div = (fb_div >> RADEON_MPLL_FB_DIV_SHIFT) & RADEON_MPLL_FB_DIV_MASK;
72 fb_div <<= 1;
73 fb_div *= mpll->reference_freq;
74
75 ref_div =
76 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) & RADEON_M_SPLL_REF_DIV_MASK;
77
78 if (ref_div == 0)
79 return 0;
80
81 mclk = fb_div / ref_div;
82
83 post_div = RREG32_PLL(RADEON_MCLK_CNTL) & 0x7;
84 if (post_div == 2)
85 mclk >>= 1;
86 else if (post_div == 3)
87 mclk >>= 2;
88 else if (post_div == 4)
89 mclk >>= 3;
90
91 return mclk;
92 }
93
94 #ifdef CONFIG_OF
95 /*
96 * Read XTAL (ref clock), SCLK and MCLK from Open Firmware device
97 * tree. Hopefully, ATI OF driver is kind enough to fill these
98 */
99 static bool radeon_read_clocks_OF(struct drm_device *dev)
100 {
101 struct radeon_device *rdev = dev->dev_private;
102 struct device_node *dp = rdev->pdev->dev.of_node;
103 const u32 *val;
104 struct radeon_pll *p1pll = &rdev->clock.p1pll;
105 struct radeon_pll *p2pll = &rdev->clock.p2pll;
106 struct radeon_pll *spll = &rdev->clock.spll;
107 struct radeon_pll *mpll = &rdev->clock.mpll;
108
109 if (dp == NULL)
110 return false;
111 val = of_get_property(dp, "ATY,RefCLK", NULL);
112 if (!val || !*val) {
113 printk(KERN_WARNING "radeonfb: No ATY,RefCLK property !\n");
114 return false;
115 }
116 p1pll->reference_freq = p2pll->reference_freq = (*val) / 10;
117 p1pll->reference_div = RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
118 if (p1pll->reference_div < 2)
119 p1pll->reference_div = 12;
120 p2pll->reference_div = p1pll->reference_div;
121
122 /* These aren't in the device-tree */
123 if (rdev->family >= CHIP_R420) {
124 p1pll->pll_in_min = 100;
125 p1pll->pll_in_max = 1350;
126 p1pll->pll_out_min = 20000;
127 p1pll->pll_out_max = 50000;
128 p2pll->pll_in_min = 100;
129 p2pll->pll_in_max = 1350;
130 p2pll->pll_out_min = 20000;
131 p2pll->pll_out_max = 50000;
132 } else {
133 p1pll->pll_in_min = 40;
134 p1pll->pll_in_max = 500;
135 p1pll->pll_out_min = 12500;
136 p1pll->pll_out_max = 35000;
137 p2pll->pll_in_min = 40;
138 p2pll->pll_in_max = 500;
139 p2pll->pll_out_min = 12500;
140 p2pll->pll_out_max = 35000;
141 }
142 /* not sure what the max should be in all cases */
143 rdev->clock.max_pixel_clock = 35000;
144
145 spll->reference_freq = mpll->reference_freq = p1pll->reference_freq;
146 spll->reference_div = mpll->reference_div =
147 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
148 RADEON_M_SPLL_REF_DIV_MASK;
149
150 val = of_get_property(dp, "ATY,SCLK", NULL);
151 if (val && *val)
152 rdev->clock.default_sclk = (*val) / 10;
153 else
154 rdev->clock.default_sclk =
155 radeon_legacy_get_engine_clock(rdev);
156
157 val = of_get_property(dp, "ATY,MCLK", NULL);
158 if (val && *val)
159 rdev->clock.default_mclk = (*val) / 10;
160 else
161 rdev->clock.default_mclk =
162 radeon_legacy_get_memory_clock(rdev);
163
164 DRM_INFO("Using device-tree clock info\n");
165
166 return true;
167 }
168 #else
169 static bool radeon_read_clocks_OF(struct drm_device *dev)
170 {
171 return false;
172 }
173 #endif /* CONFIG_OF */
174
175 void radeon_get_clock_info(struct drm_device *dev)
176 {
177 struct radeon_device *rdev = dev->dev_private;
178 struct radeon_pll *p1pll = &rdev->clock.p1pll;
179 struct radeon_pll *p2pll = &rdev->clock.p2pll;
180 struct radeon_pll *dcpll = &rdev->clock.dcpll;
181 struct radeon_pll *spll = &rdev->clock.spll;
182 struct radeon_pll *mpll = &rdev->clock.mpll;
183 int ret;
184
185 if (rdev->is_atom_bios)
186 ret = radeon_atom_get_clock_info(dev);
187 else
188 ret = radeon_combios_get_clock_info(dev);
189 if (!ret)
190 ret = radeon_read_clocks_OF(dev);
191
192 if (ret) {
193 if (p1pll->reference_div < 2) {
194 if (!ASIC_IS_AVIVO(rdev)) {
195 u32 tmp = RREG32_PLL(RADEON_PPLL_REF_DIV);
196 if (ASIC_IS_R300(rdev))
197 p1pll->reference_div =
198 (tmp & R300_PPLL_REF_DIV_ACC_MASK) >> R300_PPLL_REF_DIV_ACC_SHIFT;
199 else
200 p1pll->reference_div = tmp & RADEON_PPLL_REF_DIV_MASK;
201 if (p1pll->reference_div < 2)
202 p1pll->reference_div = 12;
203 } else
204 p1pll->reference_div = 12;
205 }
206 if (p2pll->reference_div < 2)
207 p2pll->reference_div = 12;
208 if (rdev->family < CHIP_RS600) {
209 if (spll->reference_div < 2)
210 spll->reference_div =
211 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
212 RADEON_M_SPLL_REF_DIV_MASK;
213 }
214 if (mpll->reference_div < 2)
215 mpll->reference_div = spll->reference_div;
216 } else {
217 if (ASIC_IS_AVIVO(rdev)) {
218 /* TODO FALLBACK */
219 } else {
220 DRM_INFO("Using generic clock info\n");
221
222 /* may need to be per card */
223 rdev->clock.max_pixel_clock = 35000;
224
225 if (rdev->flags & RADEON_IS_IGP) {
226 p1pll->reference_freq = 1432;
227 p2pll->reference_freq = 1432;
228 spll->reference_freq = 1432;
229 mpll->reference_freq = 1432;
230 } else {
231 p1pll->reference_freq = 2700;
232 p2pll->reference_freq = 2700;
233 spll->reference_freq = 2700;
234 mpll->reference_freq = 2700;
235 }
236 p1pll->reference_div =
237 RREG32_PLL(RADEON_PPLL_REF_DIV) & 0x3ff;
238 if (p1pll->reference_div < 2)
239 p1pll->reference_div = 12;
240 p2pll->reference_div = p1pll->reference_div;
241
242 if (rdev->family >= CHIP_R420) {
243 p1pll->pll_in_min = 100;
244 p1pll->pll_in_max = 1350;
245 p1pll->pll_out_min = 20000;
246 p1pll->pll_out_max = 50000;
247 p2pll->pll_in_min = 100;
248 p2pll->pll_in_max = 1350;
249 p2pll->pll_out_min = 20000;
250 p2pll->pll_out_max = 50000;
251 } else {
252 p1pll->pll_in_min = 40;
253 p1pll->pll_in_max = 500;
254 p1pll->pll_out_min = 12500;
255 p1pll->pll_out_max = 35000;
256 p2pll->pll_in_min = 40;
257 p2pll->pll_in_max = 500;
258 p2pll->pll_out_min = 12500;
259 p2pll->pll_out_max = 35000;
260 }
261
262 spll->reference_div =
263 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
264 RADEON_M_SPLL_REF_DIV_MASK;
265 mpll->reference_div = spll->reference_div;
266 rdev->clock.default_sclk =
267 radeon_legacy_get_engine_clock(rdev);
268 rdev->clock.default_mclk =
269 radeon_legacy_get_memory_clock(rdev);
270 }
271 }
272
273 /* pixel clocks */
274 if (ASIC_IS_AVIVO(rdev)) {
275 p1pll->min_post_div = 2;
276 p1pll->max_post_div = 0x7f;
277 p1pll->min_frac_feedback_div = 0;
278 p1pll->max_frac_feedback_div = 9;
279 p2pll->min_post_div = 2;
280 p2pll->max_post_div = 0x7f;
281 p2pll->min_frac_feedback_div = 0;
282 p2pll->max_frac_feedback_div = 9;
283 } else {
284 p1pll->min_post_div = 1;
285 p1pll->max_post_div = 16;
286 p1pll->min_frac_feedback_div = 0;
287 p1pll->max_frac_feedback_div = 0;
288 p2pll->min_post_div = 1;
289 p2pll->max_post_div = 12;
290 p2pll->min_frac_feedback_div = 0;
291 p2pll->max_frac_feedback_div = 0;
292 }
293
294 /* dcpll is DCE4 only */
295 dcpll->min_post_div = 2;
296 dcpll->max_post_div = 0x7f;
297 dcpll->min_frac_feedback_div = 0;
298 dcpll->max_frac_feedback_div = 9;
299 dcpll->min_ref_div = 2;
300 dcpll->max_ref_div = 0x3ff;
301 dcpll->min_feedback_div = 4;
302 dcpll->max_feedback_div = 0xfff;
303 dcpll->best_vco = 0;
304
305 p1pll->min_ref_div = 2;
306 p1pll->max_ref_div = 0x3ff;
307 p1pll->min_feedback_div = 4;
308 p1pll->max_feedback_div = 0x7ff;
309 p1pll->best_vco = 0;
310
311 p2pll->min_ref_div = 2;
312 p2pll->max_ref_div = 0x3ff;
313 p2pll->min_feedback_div = 4;
314 p2pll->max_feedback_div = 0x7ff;
315 p2pll->best_vco = 0;
316
317 /* system clock */
318 spll->min_post_div = 1;
319 spll->max_post_div = 1;
320 spll->min_ref_div = 2;
321 spll->max_ref_div = 0xff;
322 spll->min_feedback_div = 4;
323 spll->max_feedback_div = 0xff;
324 spll->best_vco = 0;
325
326 /* memory clock */
327 mpll->min_post_div = 1;
328 mpll->max_post_div = 1;
329 mpll->min_ref_div = 2;
330 mpll->max_ref_div = 0xff;
331 mpll->min_feedback_div = 4;
332 mpll->max_feedback_div = 0xff;
333 mpll->best_vco = 0;
334
335 if (!rdev->clock.default_sclk)
336 rdev->clock.default_sclk = radeon_get_engine_clock(rdev);
337 if ((!rdev->clock.default_mclk) && rdev->asic->get_memory_clock)
338 rdev->clock.default_mclk = radeon_get_memory_clock(rdev);
339
340 rdev->pm.current_sclk = rdev->clock.default_sclk;
341 rdev->pm.current_mclk = rdev->clock.default_mclk;
342
343 }
344
345 /* 10 khz */
346 static uint32_t calc_eng_mem_clock(struct radeon_device *rdev,
347 uint32_t req_clock,
348 int *fb_div, int *post_div)
349 {
350 struct radeon_pll *spll = &rdev->clock.spll;
351 int ref_div = spll->reference_div;
352
353 if (!ref_div)
354 ref_div =
355 RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV) &
356 RADEON_M_SPLL_REF_DIV_MASK;
357
358 if (req_clock < 15000) {
359 *post_div = 8;
360 req_clock *= 8;
361 } else if (req_clock < 30000) {
362 *post_div = 4;
363 req_clock *= 4;
364 } else if (req_clock < 60000) {
365 *post_div = 2;
366 req_clock *= 2;
367 } else
368 *post_div = 1;
369
370 req_clock *= ref_div;
371 req_clock += spll->reference_freq;
372 req_clock /= (2 * spll->reference_freq);
373
374 *fb_div = req_clock & 0xff;
375
376 req_clock = (req_clock & 0xffff) << 1;
377 req_clock *= spll->reference_freq;
378 req_clock /= ref_div;
379 req_clock /= *post_div;
380
381 return req_clock;
382 }
383
384 /* 10 khz */
385 void radeon_legacy_set_engine_clock(struct radeon_device *rdev,
386 uint32_t eng_clock)
387 {
388 uint32_t tmp;
389 int fb_div, post_div;
390
391 /* XXX: wait for idle */
392
393 eng_clock = calc_eng_mem_clock(rdev, eng_clock, &fb_div, &post_div);
394
395 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
396 tmp &= ~RADEON_DONT_USE_XTALIN;
397 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
398
399 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
400 tmp &= ~RADEON_SCLK_SRC_SEL_MASK;
401 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
402
403 udelay(10);
404
405 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
406 tmp |= RADEON_SPLL_SLEEP;
407 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
408
409 udelay(2);
410
411 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
412 tmp |= RADEON_SPLL_RESET;
413 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
414
415 udelay(200);
416
417 tmp = RREG32_PLL(RADEON_M_SPLL_REF_FB_DIV);
418 tmp &= ~(RADEON_SPLL_FB_DIV_MASK << RADEON_SPLL_FB_DIV_SHIFT);
419 tmp |= (fb_div & RADEON_SPLL_FB_DIV_MASK) << RADEON_SPLL_FB_DIV_SHIFT;
420 WREG32_PLL(RADEON_M_SPLL_REF_FB_DIV, tmp);
421
422 /* XXX: verify on different asics */
423 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
424 tmp &= ~RADEON_SPLL_PVG_MASK;
425 if ((eng_clock * post_div) >= 90000)
426 tmp |= (0x7 << RADEON_SPLL_PVG_SHIFT);
427 else
428 tmp |= (0x4 << RADEON_SPLL_PVG_SHIFT);
429 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
430
431 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
432 tmp &= ~RADEON_SPLL_SLEEP;
433 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
434
435 udelay(2);
436
437 tmp = RREG32_PLL(RADEON_SPLL_CNTL);
438 tmp &= ~RADEON_SPLL_RESET;
439 WREG32_PLL(RADEON_SPLL_CNTL, tmp);
440
441 udelay(200);
442
443 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
444 tmp &= ~RADEON_SCLK_SRC_SEL_MASK;
445 switch (post_div) {
446 case 1:
447 default:
448 tmp |= 1;
449 break;
450 case 2:
451 tmp |= 2;
452 break;
453 case 4:
454 tmp |= 3;
455 break;
456 case 8:
457 tmp |= 4;
458 break;
459 }
460 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
461
462 udelay(20);
463
464 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
465 tmp |= RADEON_DONT_USE_XTALIN;
466 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
467
468 udelay(10);
469 }
470
471 void radeon_legacy_set_clock_gating(struct radeon_device *rdev, int enable)
472 {
473 uint32_t tmp;
474
475 if (enable) {
476 if (rdev->flags & RADEON_SINGLE_CRTC) {
477 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
478 if ((RREG32(RADEON_CONFIG_CNTL) &
479 RADEON_CFG_ATI_REV_ID_MASK) >
480 RADEON_CFG_ATI_REV_A13) {
481 tmp &=
482 ~(RADEON_SCLK_FORCE_CP |
483 RADEON_SCLK_FORCE_RB);
484 }
485 tmp &=
486 ~(RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1 |
487 RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_SE |
488 RADEON_SCLK_FORCE_IDCT | RADEON_SCLK_FORCE_RE |
489 RADEON_SCLK_FORCE_PB | RADEON_SCLK_FORCE_TAM |
490 RADEON_SCLK_FORCE_TDM);
491 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
492 } else if (ASIC_IS_R300(rdev)) {
493 if ((rdev->family == CHIP_RS400) ||
494 (rdev->family == CHIP_RS480)) {
495 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
496 tmp &=
497 ~(RADEON_SCLK_FORCE_DISP2 |
498 RADEON_SCLK_FORCE_CP |
499 RADEON_SCLK_FORCE_HDP |
500 RADEON_SCLK_FORCE_DISP1 |
501 RADEON_SCLK_FORCE_TOP |
502 RADEON_SCLK_FORCE_E2 | R300_SCLK_FORCE_VAP
503 | RADEON_SCLK_FORCE_IDCT |
504 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR
505 | R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX
506 | R300_SCLK_FORCE_US |
507 RADEON_SCLK_FORCE_TV_SCLK |
508 R300_SCLK_FORCE_SU |
509 RADEON_SCLK_FORCE_OV0);
510 tmp |= RADEON_DYN_STOP_LAT_MASK;
511 tmp |=
512 RADEON_SCLK_FORCE_TOP |
513 RADEON_SCLK_FORCE_VIP;
514 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
515
516 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
517 tmp &= ~RADEON_SCLK_MORE_FORCEON;
518 tmp |= RADEON_SCLK_MORE_MAX_DYN_STOP_LAT;
519 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
520
521 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
522 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
523 RADEON_PIXCLK_DAC_ALWAYS_ONb);
524 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
525
526 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
527 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
528 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
529 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
530 R300_DVOCLK_ALWAYS_ONb |
531 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
532 RADEON_PIXCLK_GV_ALWAYS_ONb |
533 R300_PIXCLK_DVO_ALWAYS_ONb |
534 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
535 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
536 R300_PIXCLK_TRANS_ALWAYS_ONb |
537 R300_PIXCLK_TVO_ALWAYS_ONb |
538 R300_P2G2CLK_ALWAYS_ONb |
539 R300_P2G2CLK_DAC_ALWAYS_ONb);
540 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
541 } else if (rdev->family >= CHIP_RV350) {
542 tmp = RREG32_PLL(R300_SCLK_CNTL2);
543 tmp &= ~(R300_SCLK_FORCE_TCL |
544 R300_SCLK_FORCE_GA |
545 R300_SCLK_FORCE_CBA);
546 tmp |= (R300_SCLK_TCL_MAX_DYN_STOP_LAT |
547 R300_SCLK_GA_MAX_DYN_STOP_LAT |
548 R300_SCLK_CBA_MAX_DYN_STOP_LAT);
549 WREG32_PLL(R300_SCLK_CNTL2, tmp);
550
551 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
552 tmp &=
553 ~(RADEON_SCLK_FORCE_DISP2 |
554 RADEON_SCLK_FORCE_CP |
555 RADEON_SCLK_FORCE_HDP |
556 RADEON_SCLK_FORCE_DISP1 |
557 RADEON_SCLK_FORCE_TOP |
558 RADEON_SCLK_FORCE_E2 | R300_SCLK_FORCE_VAP
559 | RADEON_SCLK_FORCE_IDCT |
560 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR
561 | R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX
562 | R300_SCLK_FORCE_US |
563 RADEON_SCLK_FORCE_TV_SCLK |
564 R300_SCLK_FORCE_SU |
565 RADEON_SCLK_FORCE_OV0);
566 tmp |= RADEON_DYN_STOP_LAT_MASK;
567 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
568
569 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
570 tmp &= ~RADEON_SCLK_MORE_FORCEON;
571 tmp |= RADEON_SCLK_MORE_MAX_DYN_STOP_LAT;
572 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
573
574 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
575 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
576 RADEON_PIXCLK_DAC_ALWAYS_ONb);
577 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
578
579 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
580 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
581 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
582 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
583 R300_DVOCLK_ALWAYS_ONb |
584 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
585 RADEON_PIXCLK_GV_ALWAYS_ONb |
586 R300_PIXCLK_DVO_ALWAYS_ONb |
587 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
588 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
589 R300_PIXCLK_TRANS_ALWAYS_ONb |
590 R300_PIXCLK_TVO_ALWAYS_ONb |
591 R300_P2G2CLK_ALWAYS_ONb |
592 R300_P2G2CLK_DAC_ALWAYS_ONb);
593 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
594
595 tmp = RREG32_PLL(RADEON_MCLK_MISC);
596 tmp |= (RADEON_MC_MCLK_DYN_ENABLE |
597 RADEON_IO_MCLK_DYN_ENABLE);
598 WREG32_PLL(RADEON_MCLK_MISC, tmp);
599
600 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
601 tmp |= (RADEON_FORCEON_MCLKA |
602 RADEON_FORCEON_MCLKB);
603
604 tmp &= ~(RADEON_FORCEON_YCLKA |
605 RADEON_FORCEON_YCLKB |
606 RADEON_FORCEON_MC);
607
608 /* Some releases of vbios have set DISABLE_MC_MCLKA
609 and DISABLE_MC_MCLKB bits in the vbios table. Setting these
610 bits will cause H/W hang when reading video memory with dynamic clocking
611 enabled. */
612 if ((tmp & R300_DISABLE_MC_MCLKA) &&
613 (tmp & R300_DISABLE_MC_MCLKB)) {
614 /* If both bits are set, then check the active channels */
615 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
616 if (rdev->mc.vram_width == 64) {
617 if (RREG32(RADEON_MEM_CNTL) &
618 R300_MEM_USE_CD_CH_ONLY)
619 tmp &=
620 ~R300_DISABLE_MC_MCLKB;
621 else
622 tmp &=
623 ~R300_DISABLE_MC_MCLKA;
624 } else {
625 tmp &= ~(R300_DISABLE_MC_MCLKA |
626 R300_DISABLE_MC_MCLKB);
627 }
628 }
629
630 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
631 } else {
632 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
633 tmp &= ~(R300_SCLK_FORCE_VAP);
634 tmp |= RADEON_SCLK_FORCE_CP;
635 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
636 udelay(15000);
637
638 tmp = RREG32_PLL(R300_SCLK_CNTL2);
639 tmp &= ~(R300_SCLK_FORCE_TCL |
640 R300_SCLK_FORCE_GA |
641 R300_SCLK_FORCE_CBA);
642 WREG32_PLL(R300_SCLK_CNTL2, tmp);
643 }
644 } else {
645 tmp = RREG32_PLL(RADEON_CLK_PWRMGT_CNTL);
646
647 tmp &= ~(RADEON_ACTIVE_HILO_LAT_MASK |
648 RADEON_DISP_DYN_STOP_LAT_MASK |
649 RADEON_DYN_STOP_MODE_MASK);
650
651 tmp |= (RADEON_ENGIN_DYNCLK_MODE |
652 (0x01 << RADEON_ACTIVE_HILO_LAT_SHIFT));
653 WREG32_PLL(RADEON_CLK_PWRMGT_CNTL, tmp);
654 udelay(15000);
655
656 tmp = RREG32_PLL(RADEON_CLK_PIN_CNTL);
657 tmp |= RADEON_SCLK_DYN_START_CNTL;
658 WREG32_PLL(RADEON_CLK_PIN_CNTL, tmp);
659 udelay(15000);
660
661 /* When DRI is enabled, setting DYN_STOP_LAT to zero can cause some R200
662 to lockup randomly, leave them as set by BIOS.
663 */
664 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
665 /*tmp &= RADEON_SCLK_SRC_SEL_MASK; */
666 tmp &= ~RADEON_SCLK_FORCEON_MASK;
667
668 /*RAGE_6::A11 A12 A12N1 A13, RV250::A11 A12, R300 */
669 if (((rdev->family == CHIP_RV250) &&
670 ((RREG32(RADEON_CONFIG_CNTL) &
671 RADEON_CFG_ATI_REV_ID_MASK) <
672 RADEON_CFG_ATI_REV_A13))
673 || ((rdev->family == CHIP_RV100)
674 &&
675 ((RREG32(RADEON_CONFIG_CNTL) &
676 RADEON_CFG_ATI_REV_ID_MASK) <=
677 RADEON_CFG_ATI_REV_A13))) {
678 tmp |= RADEON_SCLK_FORCE_CP;
679 tmp |= RADEON_SCLK_FORCE_VIP;
680 }
681
682 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
683
684 if ((rdev->family == CHIP_RV200) ||
685 (rdev->family == CHIP_RV250) ||
686 (rdev->family == CHIP_RV280)) {
687 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
688 tmp &= ~RADEON_SCLK_MORE_FORCEON;
689
690 /* RV200::A11 A12 RV250::A11 A12 */
691 if (((rdev->family == CHIP_RV200) ||
692 (rdev->family == CHIP_RV250)) &&
693 ((RREG32(RADEON_CONFIG_CNTL) &
694 RADEON_CFG_ATI_REV_ID_MASK) <
695 RADEON_CFG_ATI_REV_A13)) {
696 tmp |= RADEON_SCLK_MORE_FORCEON;
697 }
698 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
699 udelay(15000);
700 }
701
702 /* RV200::A11 A12, RV250::A11 A12 */
703 if (((rdev->family == CHIP_RV200) ||
704 (rdev->family == CHIP_RV250)) &&
705 ((RREG32(RADEON_CONFIG_CNTL) &
706 RADEON_CFG_ATI_REV_ID_MASK) <
707 RADEON_CFG_ATI_REV_A13)) {
708 tmp = RREG32_PLL(RADEON_PLL_PWRMGT_CNTL);
709 tmp |= RADEON_TCL_BYPASS_DISABLE;
710 WREG32_PLL(RADEON_PLL_PWRMGT_CNTL, tmp);
711 }
712 udelay(15000);
713
714 /*enable dynamic mode for display clocks (PIXCLK and PIX2CLK) */
715 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
716 tmp |= (RADEON_PIX2CLK_ALWAYS_ONb |
717 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
718 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
719 RADEON_PIXCLK_GV_ALWAYS_ONb |
720 RADEON_PIXCLK_DIG_TMDS_ALWAYS_ONb |
721 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
722 RADEON_PIXCLK_TMDS_ALWAYS_ONb);
723
724 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
725 udelay(15000);
726
727 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
728 tmp |= (RADEON_PIXCLK_ALWAYS_ONb |
729 RADEON_PIXCLK_DAC_ALWAYS_ONb);
730
731 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
732 udelay(15000);
733 }
734 } else {
735 /* Turn everything OFF (ForceON to everything) */
736 if (rdev->flags & RADEON_SINGLE_CRTC) {
737 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
738 tmp |= (RADEON_SCLK_FORCE_CP | RADEON_SCLK_FORCE_HDP |
739 RADEON_SCLK_FORCE_DISP1 | RADEON_SCLK_FORCE_TOP
740 | RADEON_SCLK_FORCE_E2 | RADEON_SCLK_FORCE_SE |
741 RADEON_SCLK_FORCE_IDCT | RADEON_SCLK_FORCE_VIP |
742 RADEON_SCLK_FORCE_RE | RADEON_SCLK_FORCE_PB |
743 RADEON_SCLK_FORCE_TAM | RADEON_SCLK_FORCE_TDM |
744 RADEON_SCLK_FORCE_RB);
745 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
746 } else if ((rdev->family == CHIP_RS400) ||
747 (rdev->family == CHIP_RS480)) {
748 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
749 tmp |= (RADEON_SCLK_FORCE_DISP2 | RADEON_SCLK_FORCE_CP |
750 RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1
751 | RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_E2 |
752 R300_SCLK_FORCE_VAP | RADEON_SCLK_FORCE_IDCT |
753 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR |
754 R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX |
755 R300_SCLK_FORCE_US | RADEON_SCLK_FORCE_TV_SCLK |
756 R300_SCLK_FORCE_SU | RADEON_SCLK_FORCE_OV0);
757 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
758
759 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
760 tmp |= RADEON_SCLK_MORE_FORCEON;
761 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
762
763 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
764 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
765 RADEON_PIXCLK_DAC_ALWAYS_ONb |
766 R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
767 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
768
769 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
770 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
771 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
772 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
773 R300_DVOCLK_ALWAYS_ONb |
774 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
775 RADEON_PIXCLK_GV_ALWAYS_ONb |
776 R300_PIXCLK_DVO_ALWAYS_ONb |
777 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
778 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
779 R300_PIXCLK_TRANS_ALWAYS_ONb |
780 R300_PIXCLK_TVO_ALWAYS_ONb |
781 R300_P2G2CLK_ALWAYS_ONb |
782 R300_P2G2CLK_DAC_ALWAYS_ONb |
783 R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
784 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
785 } else if (rdev->family >= CHIP_RV350) {
786 /* for RV350/M10, no delays are required. */
787 tmp = RREG32_PLL(R300_SCLK_CNTL2);
788 tmp |= (R300_SCLK_FORCE_TCL |
789 R300_SCLK_FORCE_GA | R300_SCLK_FORCE_CBA);
790 WREG32_PLL(R300_SCLK_CNTL2, tmp);
791
792 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
793 tmp |= (RADEON_SCLK_FORCE_DISP2 | RADEON_SCLK_FORCE_CP |
794 RADEON_SCLK_FORCE_HDP | RADEON_SCLK_FORCE_DISP1
795 | RADEON_SCLK_FORCE_TOP | RADEON_SCLK_FORCE_E2 |
796 R300_SCLK_FORCE_VAP | RADEON_SCLK_FORCE_IDCT |
797 RADEON_SCLK_FORCE_VIP | R300_SCLK_FORCE_SR |
798 R300_SCLK_FORCE_PX | R300_SCLK_FORCE_TX |
799 R300_SCLK_FORCE_US | RADEON_SCLK_FORCE_TV_SCLK |
800 R300_SCLK_FORCE_SU | RADEON_SCLK_FORCE_OV0);
801 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
802
803 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
804 tmp |= RADEON_SCLK_MORE_FORCEON;
805 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
806
807 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
808 tmp |= (RADEON_FORCEON_MCLKA |
809 RADEON_FORCEON_MCLKB |
810 RADEON_FORCEON_YCLKA |
811 RADEON_FORCEON_YCLKB | RADEON_FORCEON_MC);
812 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
813
814 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
815 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
816 RADEON_PIXCLK_DAC_ALWAYS_ONb |
817 R300_DISP_DAC_PIXCLK_DAC_BLANK_OFF);
818 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
819
820 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
821 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
822 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
823 RADEON_DISP_TVOUT_PIXCLK_TV_ALWAYS_ONb |
824 R300_DVOCLK_ALWAYS_ONb |
825 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
826 RADEON_PIXCLK_GV_ALWAYS_ONb |
827 R300_PIXCLK_DVO_ALWAYS_ONb |
828 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
829 RADEON_PIXCLK_TMDS_ALWAYS_ONb |
830 R300_PIXCLK_TRANS_ALWAYS_ONb |
831 R300_PIXCLK_TVO_ALWAYS_ONb |
832 R300_P2G2CLK_ALWAYS_ONb |
833 R300_P2G2CLK_DAC_ALWAYS_ONb |
834 R300_DISP_DAC_PIXCLK_DAC2_BLANK_OFF);
835 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
836 } else {
837 tmp = RREG32_PLL(RADEON_SCLK_CNTL);
838 tmp |= (RADEON_SCLK_FORCE_CP | RADEON_SCLK_FORCE_E2);
839 tmp |= RADEON_SCLK_FORCE_SE;
840
841 if (rdev->flags & RADEON_SINGLE_CRTC) {
842 tmp |= (RADEON_SCLK_FORCE_RB |
843 RADEON_SCLK_FORCE_TDM |
844 RADEON_SCLK_FORCE_TAM |
845 RADEON_SCLK_FORCE_PB |
846 RADEON_SCLK_FORCE_RE |
847 RADEON_SCLK_FORCE_VIP |
848 RADEON_SCLK_FORCE_IDCT |
849 RADEON_SCLK_FORCE_TOP |
850 RADEON_SCLK_FORCE_DISP1 |
851 RADEON_SCLK_FORCE_DISP2 |
852 RADEON_SCLK_FORCE_HDP);
853 } else if ((rdev->family == CHIP_R300) ||
854 (rdev->family == CHIP_R350)) {
855 tmp |= (RADEON_SCLK_FORCE_HDP |
856 RADEON_SCLK_FORCE_DISP1 |
857 RADEON_SCLK_FORCE_DISP2 |
858 RADEON_SCLK_FORCE_TOP |
859 RADEON_SCLK_FORCE_IDCT |
860 RADEON_SCLK_FORCE_VIP);
861 }
862 WREG32_PLL(RADEON_SCLK_CNTL, tmp);
863
864 udelay(16000);
865
866 if ((rdev->family == CHIP_R300) ||
867 (rdev->family == CHIP_R350)) {
868 tmp = RREG32_PLL(R300_SCLK_CNTL2);
869 tmp |= (R300_SCLK_FORCE_TCL |
870 R300_SCLK_FORCE_GA |
871 R300_SCLK_FORCE_CBA);
872 WREG32_PLL(R300_SCLK_CNTL2, tmp);
873 udelay(16000);
874 }
875
876 if (rdev->flags & RADEON_IS_IGP) {
877 tmp = RREG32_PLL(RADEON_MCLK_CNTL);
878 tmp &= ~(RADEON_FORCEON_MCLKA |
879 RADEON_FORCEON_YCLKA);
880 WREG32_PLL(RADEON_MCLK_CNTL, tmp);
881 udelay(16000);
882 }
883
884 if ((rdev->family == CHIP_RV200) ||
885 (rdev->family == CHIP_RV250) ||
886 (rdev->family == CHIP_RV280)) {
887 tmp = RREG32_PLL(RADEON_SCLK_MORE_CNTL);
888 tmp |= RADEON_SCLK_MORE_FORCEON;
889 WREG32_PLL(RADEON_SCLK_MORE_CNTL, tmp);
890 udelay(16000);
891 }
892
893 tmp = RREG32_PLL(RADEON_PIXCLKS_CNTL);
894 tmp &= ~(RADEON_PIX2CLK_ALWAYS_ONb |
895 RADEON_PIX2CLK_DAC_ALWAYS_ONb |
896 RADEON_PIXCLK_BLEND_ALWAYS_ONb |
897 RADEON_PIXCLK_GV_ALWAYS_ONb |
898 RADEON_PIXCLK_DIG_TMDS_ALWAYS_ONb |
899 RADEON_PIXCLK_LVDS_ALWAYS_ONb |
900 RADEON_PIXCLK_TMDS_ALWAYS_ONb);
901
902 WREG32_PLL(RADEON_PIXCLKS_CNTL, tmp);
903 udelay(16000);
904
905 tmp = RREG32_PLL(RADEON_VCLK_ECP_CNTL);
906 tmp &= ~(RADEON_PIXCLK_ALWAYS_ONb |
907 RADEON_PIXCLK_DAC_ALWAYS_ONb);
908 WREG32_PLL(RADEON_VCLK_ECP_CNTL, tmp);
909 }
910 }
911 }
912