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1/*
2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: Dave Airlie
24 * Alex Deucher
25 */
26#include <drm/drmP.h>
27#include <drm/drm_crtc_helper.h>
28#include <drm/drm_fb_helper.h>
29#include <drm/radeon_drm.h>
30#include <drm/drm_fixed.h>
31#include "radeon.h"
32#include "atom.h"
33
34static void radeon_overscan_setup(struct drm_crtc *crtc,
35 struct drm_display_mode *mode)
36{
37 struct drm_device *dev = crtc->dev;
38 struct radeon_device *rdev = dev->dev_private;
39 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
40
41 WREG32(RADEON_OVR_CLR + radeon_crtc->crtc_offset, 0);
42 WREG32(RADEON_OVR_WID_LEFT_RIGHT + radeon_crtc->crtc_offset, 0);
43 WREG32(RADEON_OVR_WID_TOP_BOTTOM + radeon_crtc->crtc_offset, 0);
44}
45
46static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
47 struct drm_display_mode *mode)
48{
49 struct drm_device *dev = crtc->dev;
50 struct radeon_device *rdev = dev->dev_private;
51 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
52 int xres = mode->hdisplay;
53 int yres = mode->vdisplay;
54 bool hscale = true, vscale = true;
55 int hsync_wid;
56 int vsync_wid;
57 int hsync_start;
58 int blank_width;
59 u32 scale, inc, crtc_more_cntl;
60 u32 fp_horz_stretch, fp_vert_stretch, fp_horz_vert_active;
61 u32 fp_h_sync_strt_wid, fp_crtc_h_total_disp;
62 u32 fp_v_sync_strt_wid, fp_crtc_v_total_disp;
63 struct drm_display_mode *native_mode = &radeon_crtc->native_mode;
64
65 fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) &
66 (RADEON_VERT_STRETCH_RESERVED |
67 RADEON_VERT_AUTO_RATIO_INC);
68 fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) &
69 (RADEON_HORZ_FP_LOOP_STRETCH |
70 RADEON_HORZ_AUTO_RATIO_INC);
71
72 crtc_more_cntl = 0;
73 if ((rdev->family == CHIP_RS100) ||
74 (rdev->family == CHIP_RS200)) {
75 /* This is to workaround the asic bug for RMX, some versions
76 of BIOS dosen't have this register initialized correctly. */
77 crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN;
78 }
79
80
81 fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
82 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
83
84 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
85 if (!hsync_wid)
86 hsync_wid = 1;
87 hsync_start = mode->crtc_hsync_start - 8;
88
89 fp_h_sync_strt_wid = ((hsync_start & 0x1fff)
90 | ((hsync_wid & 0x3f) << 16)
91 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
92 ? RADEON_CRTC_H_SYNC_POL
93 : 0));
94
95 fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
96 | ((mode->crtc_vdisplay - 1) << 16));
97
98 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
99 if (!vsync_wid)
100 vsync_wid = 1;
101
102 fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
103 | ((vsync_wid & 0x1f) << 16)
104 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
105 ? RADEON_CRTC_V_SYNC_POL
106 : 0));
107
108 fp_horz_vert_active = 0;
109
110 if (native_mode->hdisplay == 0 ||
111 native_mode->vdisplay == 0) {
112 hscale = false;
113 vscale = false;
114 } else {
115 if (xres > native_mode->hdisplay)
116 xres = native_mode->hdisplay;
117 if (yres > native_mode->vdisplay)
118 yres = native_mode->vdisplay;
119
120 if (xres == native_mode->hdisplay)
121 hscale = false;
122 if (yres == native_mode->vdisplay)
123 vscale = false;
124 }
125
126 switch (radeon_crtc->rmx_type) {
127 case RMX_FULL:
128 case RMX_ASPECT:
129 if (!hscale)
130 fp_horz_stretch |= ((xres/8-1) << 16);
131 else {
132 inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0;
133 scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX)
134 / native_mode->hdisplay + 1;
135 fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) |
136 RADEON_HORZ_STRETCH_BLEND |
137 RADEON_HORZ_STRETCH_ENABLE |
138 ((native_mode->hdisplay/8-1) << 16));
139 }
140
141 if (!vscale)
142 fp_vert_stretch |= ((yres-1) << 12);
143 else {
144 inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0;
145 scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX)
146 / native_mode->vdisplay + 1;
147 fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) |
148 RADEON_VERT_STRETCH_ENABLE |
149 RADEON_VERT_STRETCH_BLEND |
150 ((native_mode->vdisplay-1) << 12));
151 }
152 break;
153 case RMX_CENTER:
154 fp_horz_stretch |= ((xres/8-1) << 16);
155 fp_vert_stretch |= ((yres-1) << 12);
156
157 crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN |
158 RADEON_CRTC_AUTO_VERT_CENTER_EN);
159
160 blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8;
161 if (blank_width > 110)
162 blank_width = 110;
163
164 fp_crtc_h_total_disp = (((blank_width) & 0x3ff)
165 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
166
167 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
168 if (!hsync_wid)
169 hsync_wid = 1;
170
171 fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff)
172 | ((hsync_wid & 0x3f) << 16)
173 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
174 ? RADEON_CRTC_H_SYNC_POL
175 : 0));
176
177 fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff)
178 | ((mode->crtc_vdisplay - 1) << 16));
179
180 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
181 if (!vsync_wid)
182 vsync_wid = 1;
183
184 fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff)
185 | ((vsync_wid & 0x1f) << 16)
186 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
187 ? RADEON_CRTC_V_SYNC_POL
188 : 0)));
189
190 fp_horz_vert_active = (((native_mode->vdisplay) & 0xfff) |
191 (((native_mode->hdisplay / 8) & 0x1ff) << 16));
192 break;
193 case RMX_OFF:
194 default:
195 fp_horz_stretch |= ((xres/8-1) << 16);
196 fp_vert_stretch |= ((yres-1) << 12);
197 break;
198 }
199
200 WREG32(RADEON_FP_HORZ_STRETCH, fp_horz_stretch);
201 WREG32(RADEON_FP_VERT_STRETCH, fp_vert_stretch);
202 WREG32(RADEON_CRTC_MORE_CNTL, crtc_more_cntl);
203 WREG32(RADEON_FP_HORZ_VERT_ACTIVE, fp_horz_vert_active);
204 WREG32(RADEON_FP_H_SYNC_STRT_WID, fp_h_sync_strt_wid);
205 WREG32(RADEON_FP_V_SYNC_STRT_WID, fp_v_sync_strt_wid);
206 WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp);
207 WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp);
208}
209
210static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev)
211{
212 struct radeon_device *rdev = dev->dev_private;
213 int i = 0;
214
215 /* FIXME: Certain revisions of R300 can't recover here. Not sure of
216 the cause yet, but this workaround will mask the problem for now.
217 Other chips usually will pass at the very first test, so the
218 workaround shouldn't have any effect on them. */
219 for (i = 0;
220 (i < 10000 &&
221 RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R);
222 i++);
223}
224
225static void radeon_pll_write_update(struct drm_device *dev)
226{
227 struct radeon_device *rdev = dev->dev_private;
228
229 while (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R);
230
231 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
232 RADEON_PPLL_ATOMIC_UPDATE_W,
233 ~(RADEON_PPLL_ATOMIC_UPDATE_W));
234}
235
236static void radeon_pll2_wait_for_read_update_complete(struct drm_device *dev)
237{
238 struct radeon_device *rdev = dev->dev_private;
239 int i = 0;
240
241
242 /* FIXME: Certain revisions of R300 can't recover here. Not sure of
243 the cause yet, but this workaround will mask the problem for now.
244 Other chips usually will pass at the very first test, so the
245 workaround shouldn't have any effect on them. */
246 for (i = 0;
247 (i < 10000 &&
248 RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R);
249 i++);
250}
251
252static void radeon_pll2_write_update(struct drm_device *dev)
253{
254 struct radeon_device *rdev = dev->dev_private;
255
256 while (RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R);
257
258 WREG32_PLL_P(RADEON_P2PLL_REF_DIV,
259 RADEON_P2PLL_ATOMIC_UPDATE_W,
260 ~(RADEON_P2PLL_ATOMIC_UPDATE_W));
261}
262
263static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div,
264 uint16_t fb_div)
265{
266 unsigned int vcoFreq;
267
268 if (!ref_div)
269 return 1;
270
271 vcoFreq = ((unsigned)ref_freq * fb_div) / ref_div;
272
273 /*
274 * This is horribly crude: the VCO frequency range is divided into
275 * 3 parts, each part having a fixed PLL gain value.
276 */
277 if (vcoFreq >= 30000)
278 /*
279 * [300..max] MHz : 7
280 */
281 return 7;
282 else if (vcoFreq >= 18000)
283 /*
284 * [180..300) MHz : 4
285 */
286 return 4;
287 else
288 /*
289 * [0..180) MHz : 1
290 */
291 return 1;
292}
293
294static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
295{
296 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
297 struct drm_device *dev = crtc->dev;
298 struct radeon_device *rdev = dev->dev_private;
299 uint32_t crtc_ext_cntl = 0;
300 uint32_t mask;
301
302 if (radeon_crtc->crtc_id)
303 mask = (RADEON_CRTC2_DISP_DIS |
304 RADEON_CRTC2_VSYNC_DIS |
305 RADEON_CRTC2_HSYNC_DIS |
306 RADEON_CRTC2_DISP_REQ_EN_B);
307 else
308 mask = (RADEON_CRTC_DISPLAY_DIS |
309 RADEON_CRTC_VSYNC_DIS |
310 RADEON_CRTC_HSYNC_DIS);
311
312 /*
313 * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC.
314 * Therefore it is set in the DAC DMPS function.
315 * This is different for GPU's with a single CRTC but a primary and a
316 * TV DAC: here it controls the single CRTC no matter where it is
317 * routed. Therefore we set it here.
318 */
319 if (rdev->flags & RADEON_SINGLE_CRTC)
320 crtc_ext_cntl = RADEON_CRTC_CRT_ON;
321
322 switch (mode) {
323 case DRM_MODE_DPMS_ON:
324 radeon_crtc->enabled = true;
325 /* adjust pm to dpms changes BEFORE enabling crtcs */
326 radeon_pm_compute_clocks(rdev);
327 if (radeon_crtc->crtc_id)
328 WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask));
329 else {
330 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN |
331 RADEON_CRTC_DISP_REQ_EN_B));
332 WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl));
333 }
334 if (dev->num_crtcs > radeon_crtc->crtc_id)
335 drm_vblank_on(dev, radeon_crtc->crtc_id);
336 radeon_crtc_load_lut(crtc);
337 break;
338 case DRM_MODE_DPMS_STANDBY:
339 case DRM_MODE_DPMS_SUSPEND:
340 case DRM_MODE_DPMS_OFF:
341 if (dev->num_crtcs > radeon_crtc->crtc_id)
342 drm_vblank_off(dev, radeon_crtc->crtc_id);
343 if (radeon_crtc->crtc_id)
344 WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask));
345 else {
346 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN |
347 RADEON_CRTC_DISP_REQ_EN_B));
348 WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl));
349 }
350 radeon_crtc->enabled = false;
351 /* adjust pm to dpms changes AFTER disabling crtcs */
352 radeon_pm_compute_clocks(rdev);
353 break;
354 }
355}
356
357int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
358 struct drm_framebuffer *old_fb)
359{
360 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
361}
362
363int radeon_crtc_set_base_atomic(struct drm_crtc *crtc,
364 struct drm_framebuffer *fb,
365 int x, int y, enum mode_set_atomic state)
366{
367 return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
368}
369
370int radeon_crtc_do_set_base(struct drm_crtc *crtc,
371 struct drm_framebuffer *fb,
372 int x, int y, int atomic)
373{
374 struct drm_device *dev = crtc->dev;
375 struct radeon_device *rdev = dev->dev_private;
376 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
377 struct radeon_framebuffer *radeon_fb;
378 struct drm_framebuffer *target_fb;
379 struct drm_gem_object *obj;
380 struct radeon_bo *rbo;
381 uint64_t base;
382 uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0;
383 uint32_t crtc_pitch, pitch_pixels;
384 uint32_t tiling_flags;
385 int format;
386 uint32_t gen_cntl_reg, gen_cntl_val;
387 int r;
388
389 DRM_DEBUG_KMS("\n");
390 /* no fb bound */
391 if (!atomic && !crtc->primary->fb) {
392 DRM_DEBUG_KMS("No FB bound\n");
393 return 0;
394 }
395
396 if (atomic) {
397 radeon_fb = to_radeon_framebuffer(fb);
398 target_fb = fb;
399 }
400 else {
401 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
402 target_fb = crtc->primary->fb;
403 }
404
405 switch (target_fb->bits_per_pixel) {
406 case 8:
407 format = 2;
408 break;
409 case 15: /* 555 */
410 format = 3;
411 break;
412 case 16: /* 565 */
413 format = 4;
414 break;
415 case 24: /* RGB */
416 format = 5;
417 break;
418 case 32: /* xRGB */
419 format = 6;
420 break;
421 default:
422 return false;
423 }
424
425 /* Pin framebuffer & get tilling informations */
426 obj = radeon_fb->obj;
427 rbo = gem_to_radeon_bo(obj);
428retry:
429 r = radeon_bo_reserve(rbo, false);
430 if (unlikely(r != 0))
431 return r;
432 /* Only 27 bit offset for legacy CRTC */
433 r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 1 << 27,
434 &base);
435 if (unlikely(r != 0)) {
436 radeon_bo_unreserve(rbo);
437
438 /* On old GPU like RN50 with little vram pining can fails because
439 * current fb is taking all space needed. So instead of unpining
440 * the old buffer after pining the new one, first unpin old one
441 * and then retry pining new one.
442 *
443 * As only master can set mode only master can pin and it is
444 * unlikely the master client will race with itself especialy
445 * on those old gpu with single crtc.
446 *
447 * We don't shutdown the display controller because new buffer
448 * will end up in same spot.
449 */
450 if (!atomic && fb && fb != crtc->primary->fb) {
451 struct radeon_bo *old_rbo;
452 unsigned long nsize, osize;
453
454 old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj);
455 osize = radeon_bo_size(old_rbo);
456 nsize = radeon_bo_size(rbo);
457 if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) {
458 radeon_bo_unpin(old_rbo);
459 radeon_bo_unreserve(old_rbo);
460 fb = NULL;
461 goto retry;
462 }
463 }
464 return -EINVAL;
465 }
466 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
467 radeon_bo_unreserve(rbo);
468 if (tiling_flags & RADEON_TILING_MICRO)
469 DRM_ERROR("trying to scanout microtiled buffer\n");
470
471 /* if scanout was in GTT this really wouldn't work */
472 /* crtc offset is from display base addr not FB location */
473 radeon_crtc->legacy_display_base_addr = rdev->mc.vram_start;
474
475 base -= radeon_crtc->legacy_display_base_addr;
476
477 crtc_offset_cntl = 0;
478
479 pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
480 crtc_pitch = (((pitch_pixels * target_fb->bits_per_pixel) +
481 ((target_fb->bits_per_pixel * 8) - 1)) /
482 (target_fb->bits_per_pixel * 8));
483 crtc_pitch |= crtc_pitch << 16;
484
485 crtc_offset_cntl |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN;
486 if (tiling_flags & RADEON_TILING_MACRO) {
487 if (ASIC_IS_R300(rdev))
488 crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN |
489 R300_CRTC_MICRO_TILE_BUFFER_DIS |
490 R300_CRTC_MACRO_TILE_EN);
491 else
492 crtc_offset_cntl |= RADEON_CRTC_TILE_EN;
493 } else {
494 if (ASIC_IS_R300(rdev))
495 crtc_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN |
496 R300_CRTC_MICRO_TILE_BUFFER_DIS |
497 R300_CRTC_MACRO_TILE_EN);
498 else
499 crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN;
500 }
501
502 if (tiling_flags & RADEON_TILING_MACRO) {
503 if (ASIC_IS_R300(rdev)) {
504 crtc_tile_x0_y0 = x | (y << 16);
505 base &= ~0x7ff;
506 } else {
507 int byteshift = target_fb->bits_per_pixel >> 4;
508 int tile_addr = (((y >> 3) * pitch_pixels + x) >> (8 - byteshift)) << 11;
509 base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8);
510 crtc_offset_cntl |= (y % 16);
511 }
512 } else {
513 int offset = y * pitch_pixels + x;
514 switch (target_fb->bits_per_pixel) {
515 case 8:
516 offset *= 1;
517 break;
518 case 15:
519 case 16:
520 offset *= 2;
521 break;
522 case 24:
523 offset *= 3;
524 break;
525 case 32:
526 offset *= 4;
527 break;
528 default:
529 return false;
530 }
531 base += offset;
532 }
533
534 base &= ~7;
535
536 if (radeon_crtc->crtc_id == 1)
537 gen_cntl_reg = RADEON_CRTC2_GEN_CNTL;
538 else
539 gen_cntl_reg = RADEON_CRTC_GEN_CNTL;
540
541 gen_cntl_val = RREG32(gen_cntl_reg);
542 gen_cntl_val &= ~(0xf << 8);
543 gen_cntl_val |= (format << 8);
544 gen_cntl_val &= ~RADEON_CRTC_VSTAT_MODE_MASK;
545 WREG32(gen_cntl_reg, gen_cntl_val);
546
547 crtc_offset = (u32)base;
548
549 WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr);
550
551 if (ASIC_IS_R300(rdev)) {
552 if (radeon_crtc->crtc_id)
553 WREG32(R300_CRTC2_TILE_X0_Y0, crtc_tile_x0_y0);
554 else
555 WREG32(R300_CRTC_TILE_X0_Y0, crtc_tile_x0_y0);
556 }
557 WREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset, crtc_offset_cntl);
558 WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, crtc_offset);
559 WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch);
560
561 if (!atomic && fb && fb != crtc->primary->fb) {
562 radeon_fb = to_radeon_framebuffer(fb);
563 rbo = gem_to_radeon_bo(radeon_fb->obj);
564 r = radeon_bo_reserve(rbo, false);
565 if (unlikely(r != 0))
566 return r;
567 radeon_bo_unpin(rbo);
568 radeon_bo_unreserve(rbo);
569 }
570
571 /* Bytes per pixel may have changed */
572 radeon_bandwidth_update(rdev);
573
574 return 0;
575}
576
577static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mode *mode)
578{
579 struct drm_device *dev = crtc->dev;
580 struct radeon_device *rdev = dev->dev_private;
581 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
582 struct drm_encoder *encoder;
583 int format;
584 int hsync_start;
585 int hsync_wid;
586 int vsync_wid;
587 uint32_t crtc_h_total_disp;
588 uint32_t crtc_h_sync_strt_wid;
589 uint32_t crtc_v_total_disp;
590 uint32_t crtc_v_sync_strt_wid;
591 bool is_tv = false;
592
593 DRM_DEBUG_KMS("\n");
594 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
595 if (encoder->crtc == crtc) {
596 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
597 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
598 is_tv = true;
599 DRM_INFO("crtc %d is connected to a TV\n", radeon_crtc->crtc_id);
600 break;
601 }
602 }
603 }
604
605 switch (crtc->primary->fb->bits_per_pixel) {
606 case 8:
607 format = 2;
608 break;
609 case 15: /* 555 */
610 format = 3;
611 break;
612 case 16: /* 565 */
613 format = 4;
614 break;
615 case 24: /* RGB */
616 format = 5;
617 break;
618 case 32: /* xRGB */
619 format = 6;
620 break;
621 default:
622 return false;
623 }
624
625 crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
626 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
627
628 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
629 if (!hsync_wid)
630 hsync_wid = 1;
631 hsync_start = mode->crtc_hsync_start - 8;
632
633 crtc_h_sync_strt_wid = ((hsync_start & 0x1fff)
634 | ((hsync_wid & 0x3f) << 16)
635 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
636 ? RADEON_CRTC_H_SYNC_POL
637 : 0));
638
639 /* This works for double scan mode. */
640 crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
641 | ((mode->crtc_vdisplay - 1) << 16));
642
643 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
644 if (!vsync_wid)
645 vsync_wid = 1;
646
647 crtc_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
648 | ((vsync_wid & 0x1f) << 16)
649 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
650 ? RADEON_CRTC_V_SYNC_POL
651 : 0));
652
653 if (radeon_crtc->crtc_id) {
654 uint32_t crtc2_gen_cntl;
655 uint32_t disp2_merge_cntl;
656
657 /* if TV DAC is enabled for another crtc and keep it enabled */
658 crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL) & 0x00718080;
659 crtc2_gen_cntl |= ((format << 8)
660 | RADEON_CRTC2_VSYNC_DIS
661 | RADEON_CRTC2_HSYNC_DIS
662 | RADEON_CRTC2_DISP_DIS
663 | RADEON_CRTC2_DISP_REQ_EN_B
664 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN)
665 ? RADEON_CRTC2_DBL_SCAN_EN
666 : 0)
667 | ((mode->flags & DRM_MODE_FLAG_CSYNC)
668 ? RADEON_CRTC2_CSYNC_EN
669 : 0)
670 | ((mode->flags & DRM_MODE_FLAG_INTERLACE)
671 ? RADEON_CRTC2_INTERLACE_EN
672 : 0));
673
674 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
675 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
676 crtc2_gen_cntl |= RADEON_CRTC2_EN;
677
678 disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
679 disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
680
681 WREG32(RADEON_DISP2_MERGE_CNTL, disp2_merge_cntl);
682 WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
683
684 WREG32(RADEON_FP_H2_SYNC_STRT_WID, crtc_h_sync_strt_wid);
685 WREG32(RADEON_FP_V2_SYNC_STRT_WID, crtc_v_sync_strt_wid);
686 } else {
687 uint32_t crtc_gen_cntl;
688 uint32_t crtc_ext_cntl;
689 uint32_t disp_merge_cntl;
690
691 crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL) & 0x00718000;
692 crtc_gen_cntl |= (RADEON_CRTC_EXT_DISP_EN
693 | (format << 8)
694 | RADEON_CRTC_DISP_REQ_EN_B
695 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN)
696 ? RADEON_CRTC_DBL_SCAN_EN
697 : 0)
698 | ((mode->flags & DRM_MODE_FLAG_CSYNC)
699 ? RADEON_CRTC_CSYNC_EN
700 : 0)
701 | ((mode->flags & DRM_MODE_FLAG_INTERLACE)
702 ? RADEON_CRTC_INTERLACE_EN
703 : 0));
704
705 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
706 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
707 crtc_gen_cntl |= RADEON_CRTC_EN;
708
709 crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
710 crtc_ext_cntl |= (RADEON_XCRT_CNT_EN |
711 RADEON_CRTC_VSYNC_DIS |
712 RADEON_CRTC_HSYNC_DIS |
713 RADEON_CRTC_DISPLAY_DIS);
714
715 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
716 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
717
718 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
719 WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl);
720 WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
721 }
722
723 if (is_tv)
724 radeon_legacy_tv_adjust_crtc_reg(encoder, &crtc_h_total_disp,
725 &crtc_h_sync_strt_wid, &crtc_v_total_disp,
726 &crtc_v_sync_strt_wid);
727
728 WREG32(RADEON_CRTC_H_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_h_total_disp);
729 WREG32(RADEON_CRTC_H_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_h_sync_strt_wid);
730 WREG32(RADEON_CRTC_V_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_v_total_disp);
731 WREG32(RADEON_CRTC_V_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_v_sync_strt_wid);
732
733 return true;
734}
735
736static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
737{
738 struct drm_device *dev = crtc->dev;
739 struct radeon_device *rdev = dev->dev_private;
740 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
741 struct drm_encoder *encoder;
742 uint32_t feedback_div = 0;
743 uint32_t frac_fb_div = 0;
744 uint32_t reference_div = 0;
745 uint32_t post_divider = 0;
746 uint32_t freq = 0;
747 uint8_t pll_gain;
748 bool use_bios_divs = false;
749 /* PLL registers */
750 uint32_t pll_ref_div = 0;
751 uint32_t pll_fb_post_div = 0;
752 uint32_t htotal_cntl = 0;
753 bool is_tv = false;
754 struct radeon_pll *pll;
755
756 struct {
757 int divider;
758 int bitvalue;
759 } *post_div, post_divs[] = {
760 /* From RAGE 128 VR/RAGE 128 GL Register
761 * Reference Manual (Technical Reference
762 * Manual P/N RRG-G04100-C Rev. 0.04), page
763 * 3-17 (PLL_DIV_[3:0]).
764 */
765 { 1, 0 }, /* VCLK_SRC */
766 { 2, 1 }, /* VCLK_SRC/2 */
767 { 4, 2 }, /* VCLK_SRC/4 */
768 { 8, 3 }, /* VCLK_SRC/8 */
769 { 3, 4 }, /* VCLK_SRC/3 */
770 { 16, 5 }, /* VCLK_SRC/16 */
771 { 6, 6 }, /* VCLK_SRC/6 */
772 { 12, 7 }, /* VCLK_SRC/12 */
773 { 0, 0 }
774 };
775
776 if (radeon_crtc->crtc_id)
777 pll = &rdev->clock.p2pll;
778 else
779 pll = &rdev->clock.p1pll;
780
781 pll->flags = RADEON_PLL_LEGACY;
782
783 if (mode->clock > 200000) /* range limits??? */
784 pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
785 else
786 pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
787
788 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
789 if (encoder->crtc == crtc) {
790 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
791
792 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
793 is_tv = true;
794 break;
795 }
796
797 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
798 pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;
799 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
800 if (!rdev->is_atom_bios) {
801 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
802 struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
803 if (lvds) {
804 if (lvds->use_bios_dividers) {
805 pll_ref_div = lvds->panel_ref_divider;
806 pll_fb_post_div = (lvds->panel_fb_divider |
807 (lvds->panel_post_divider << 16));
808 htotal_cntl = 0;
809 use_bios_divs = true;
810 }
811 }
812 }
813 pll->flags |= RADEON_PLL_USE_REF_DIV;
814 }
815 }
816 }
817
818 DRM_DEBUG_KMS("\n");
819
820 if (!use_bios_divs) {
821 radeon_compute_pll_legacy(pll, mode->clock,
822 &freq, &feedback_div, &frac_fb_div,
823 &reference_div, &post_divider);
824
825 for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
826 if (post_div->divider == post_divider)
827 break;
828 }
829
830 if (!post_div->divider)
831 post_div = &post_divs[0];
832
833 DRM_DEBUG_KMS("dc=%u, fd=%d, rd=%d, pd=%d\n",
834 (unsigned)freq,
835 feedback_div,
836 reference_div,
837 post_divider);
838
839 pll_ref_div = reference_div;
840#if defined(__powerpc__) && (0) /* TODO */
841 /* apparently programming this otherwise causes a hang??? */
842 if (info->MacModel == RADEON_MAC_IBOOK)
843 pll_fb_post_div = 0x000600ad;
844 else
845#endif
846 pll_fb_post_div = (feedback_div | (post_div->bitvalue << 16));
847
848 htotal_cntl = mode->htotal & 0x7;
849
850 }
851
852 pll_gain = radeon_compute_pll_gain(pll->reference_freq,
853 pll_ref_div & 0x3ff,
854 pll_fb_post_div & 0x7ff);
855
856 if (radeon_crtc->crtc_id) {
857 uint32_t pixclks_cntl = ((RREG32_PLL(RADEON_PIXCLKS_CNTL) &
858 ~(RADEON_PIX2CLK_SRC_SEL_MASK)) |
859 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK);
860
861 if (is_tv) {
862 radeon_legacy_tv_adjust_pll2(encoder, &htotal_cntl,
863 &pll_ref_div, &pll_fb_post_div,
864 &pixclks_cntl);
865 }
866
867 WREG32_PLL_P(RADEON_PIXCLKS_CNTL,
868 RADEON_PIX2CLK_SRC_SEL_CPUCLK,
869 ~(RADEON_PIX2CLK_SRC_SEL_MASK));
870
871 WREG32_PLL_P(RADEON_P2PLL_CNTL,
872 RADEON_P2PLL_RESET
873 | RADEON_P2PLL_ATOMIC_UPDATE_EN
874 | ((uint32_t)pll_gain << RADEON_P2PLL_PVG_SHIFT),
875 ~(RADEON_P2PLL_RESET
876 | RADEON_P2PLL_ATOMIC_UPDATE_EN
877 | RADEON_P2PLL_PVG_MASK));
878
879 WREG32_PLL_P(RADEON_P2PLL_REF_DIV,
880 pll_ref_div,
881 ~RADEON_P2PLL_REF_DIV_MASK);
882
883 WREG32_PLL_P(RADEON_P2PLL_DIV_0,
884 pll_fb_post_div,
885 ~RADEON_P2PLL_FB0_DIV_MASK);
886
887 WREG32_PLL_P(RADEON_P2PLL_DIV_0,
888 pll_fb_post_div,
889 ~RADEON_P2PLL_POST0_DIV_MASK);
890
891 radeon_pll2_write_update(dev);
892 radeon_pll2_wait_for_read_update_complete(dev);
893
894 WREG32_PLL(RADEON_HTOTAL2_CNTL, htotal_cntl);
895
896 WREG32_PLL_P(RADEON_P2PLL_CNTL,
897 0,
898 ~(RADEON_P2PLL_RESET
899 | RADEON_P2PLL_SLEEP
900 | RADEON_P2PLL_ATOMIC_UPDATE_EN));
901
902 DRM_DEBUG_KMS("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
903 (unsigned)pll_ref_div,
904 (unsigned)pll_fb_post_div,
905 (unsigned)htotal_cntl,
906 RREG32_PLL(RADEON_P2PLL_CNTL));
907 DRM_DEBUG_KMS("Wrote2: rd=%u, fd=%u, pd=%u\n",
908 (unsigned)pll_ref_div & RADEON_P2PLL_REF_DIV_MASK,
909 (unsigned)pll_fb_post_div & RADEON_P2PLL_FB0_DIV_MASK,
910 (unsigned)((pll_fb_post_div &
911 RADEON_P2PLL_POST0_DIV_MASK) >> 16));
912
913 mdelay(50); /* Let the clock to lock */
914
915 WREG32_PLL_P(RADEON_PIXCLKS_CNTL,
916 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK,
917 ~(RADEON_PIX2CLK_SRC_SEL_MASK));
918
919 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
920 } else {
921 uint32_t pixclks_cntl;
922
923
924 if (is_tv) {
925 pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
926 radeon_legacy_tv_adjust_pll1(encoder, &htotal_cntl, &pll_ref_div,
927 &pll_fb_post_div, &pixclks_cntl);
928 }
929
930 if (rdev->flags & RADEON_IS_MOBILITY) {
931 /* A temporal workaround for the occasional blanking on certain laptop panels.
932 This appears to related to the PLL divider registers (fail to lock?).
933 It occurs even when all dividers are the same with their old settings.
934 In this case we really don't need to fiddle with PLL registers.
935 By doing this we can avoid the blanking problem with some panels.
936 */
937 if ((pll_ref_div == (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_REF_DIV_MASK)) &&
938 (pll_fb_post_div == (RREG32_PLL(RADEON_PPLL_DIV_3) &
939 (RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) {
940 WREG32_P(RADEON_CLOCK_CNTL_INDEX,
941 RADEON_PLL_DIV_SEL,
942 ~(RADEON_PLL_DIV_SEL));
943 r100_pll_errata_after_index(rdev);
944 return;
945 }
946 }
947
948 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL,
949 RADEON_VCLK_SRC_SEL_CPUCLK,
950 ~(RADEON_VCLK_SRC_SEL_MASK));
951 WREG32_PLL_P(RADEON_PPLL_CNTL,
952 RADEON_PPLL_RESET
953 | RADEON_PPLL_ATOMIC_UPDATE_EN
954 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN
955 | ((uint32_t)pll_gain << RADEON_PPLL_PVG_SHIFT),
956 ~(RADEON_PPLL_RESET
957 | RADEON_PPLL_ATOMIC_UPDATE_EN
958 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN
959 | RADEON_PPLL_PVG_MASK));
960
961 WREG32_P(RADEON_CLOCK_CNTL_INDEX,
962 RADEON_PLL_DIV_SEL,
963 ~(RADEON_PLL_DIV_SEL));
964 r100_pll_errata_after_index(rdev);
965
966 if (ASIC_IS_R300(rdev) ||
967 (rdev->family == CHIP_RS300) ||
968 (rdev->family == CHIP_RS400) ||
969 (rdev->family == CHIP_RS480)) {
970 if (pll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) {
971 /* When restoring console mode, use saved PPLL_REF_DIV
972 * setting.
973 */
974 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
975 pll_ref_div,
976 0);
977 } else {
978 /* R300 uses ref_div_acc field as real ref divider */
979 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
980 (pll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT),
981 ~R300_PPLL_REF_DIV_ACC_MASK);
982 }
983 } else
984 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
985 pll_ref_div,
986 ~RADEON_PPLL_REF_DIV_MASK);
987
988 WREG32_PLL_P(RADEON_PPLL_DIV_3,
989 pll_fb_post_div,
990 ~RADEON_PPLL_FB3_DIV_MASK);
991
992 WREG32_PLL_P(RADEON_PPLL_DIV_3,
993 pll_fb_post_div,
994 ~RADEON_PPLL_POST3_DIV_MASK);
995
996 radeon_pll_write_update(dev);
997 radeon_pll_wait_for_read_update_complete(dev);
998
999 WREG32_PLL(RADEON_HTOTAL_CNTL, htotal_cntl);
1000
1001 WREG32_PLL_P(RADEON_PPLL_CNTL,
1002 0,
1003 ~(RADEON_PPLL_RESET
1004 | RADEON_PPLL_SLEEP
1005 | RADEON_PPLL_ATOMIC_UPDATE_EN
1006 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN));
1007
1008 DRM_DEBUG_KMS("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
1009 pll_ref_div,
1010 pll_fb_post_div,
1011 (unsigned)htotal_cntl,
1012 RREG32_PLL(RADEON_PPLL_CNTL));
1013 DRM_DEBUG_KMS("Wrote: rd=%d, fd=%d, pd=%d\n",
1014 pll_ref_div & RADEON_PPLL_REF_DIV_MASK,
1015 pll_fb_post_div & RADEON_PPLL_FB3_DIV_MASK,
1016 (pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16);
1017
1018 mdelay(50); /* Let the clock to lock */
1019
1020 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL,
1021 RADEON_VCLK_SRC_SEL_PPLLCLK,
1022 ~(RADEON_VCLK_SRC_SEL_MASK));
1023
1024 if (is_tv)
1025 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
1026 }
1027}
1028
1029static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc,
1030 const struct drm_display_mode *mode,
1031 struct drm_display_mode *adjusted_mode)
1032{
1033 if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
1034 return false;
1035 return true;
1036}
1037
1038static int radeon_crtc_mode_set(struct drm_crtc *crtc,
1039 struct drm_display_mode *mode,
1040 struct drm_display_mode *adjusted_mode,
1041 int x, int y, struct drm_framebuffer *old_fb)
1042{
1043 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1044
1045 /* TODO TV */
1046 radeon_crtc_set_base(crtc, x, y, old_fb);
1047 radeon_set_crtc_timing(crtc, adjusted_mode);
1048 radeon_set_pll(crtc, adjusted_mode);
1049 radeon_overscan_setup(crtc, adjusted_mode);
1050 if (radeon_crtc->crtc_id == 0) {
1051 radeon_legacy_rmx_mode_set(crtc, adjusted_mode);
1052 } else {
1053 if (radeon_crtc->rmx_type != RMX_OFF) {
1054 /* FIXME: only first crtc has rmx what should we
1055 * do ?
1056 */
1057 DRM_ERROR("Mode need scaling but only first crtc can do that.\n");
1058 }
1059 }
1060 radeon_cursor_reset(crtc);
1061 return 0;
1062}
1063
1064static void radeon_crtc_prepare(struct drm_crtc *crtc)
1065{
1066 struct drm_device *dev = crtc->dev;
1067 struct drm_crtc *crtci;
1068
1069 /*
1070 * The hardware wedges sometimes if you reconfigure one CRTC
1071 * whilst another is running (see fdo bug #24611).
1072 */
1073 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head)
1074 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_OFF);
1075}
1076
1077static void radeon_crtc_commit(struct drm_crtc *crtc)
1078{
1079 struct drm_device *dev = crtc->dev;
1080 struct drm_crtc *crtci;
1081
1082 /*
1083 * Reenable the CRTCs that should be running.
1084 */
1085 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) {
1086 if (crtci->enabled)
1087 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON);
1088 }
1089}
1090
1091static void radeon_crtc_disable(struct drm_crtc *crtc)
1092{
1093 radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1094 if (crtc->primary->fb) {
1095 int r;
1096 struct radeon_framebuffer *radeon_fb;
1097 struct radeon_bo *rbo;
1098
1099 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1100 rbo = gem_to_radeon_bo(radeon_fb->obj);
1101 r = radeon_bo_reserve(rbo, false);
1102 if (unlikely(r))
1103 DRM_ERROR("failed to reserve rbo before unpin\n");
1104 else {
1105 radeon_bo_unpin(rbo);
1106 radeon_bo_unreserve(rbo);
1107 }
1108 }
1109}
1110
1111static const struct drm_crtc_helper_funcs legacy_helper_funcs = {
1112 .dpms = radeon_crtc_dpms,
1113 .mode_fixup = radeon_crtc_mode_fixup,
1114 .mode_set = radeon_crtc_mode_set,
1115 .mode_set_base = radeon_crtc_set_base,
1116 .mode_set_base_atomic = radeon_crtc_set_base_atomic,
1117 .prepare = radeon_crtc_prepare,
1118 .commit = radeon_crtc_commit,
1119 .load_lut = radeon_crtc_load_lut,
1120 .disable = radeon_crtc_disable
1121};
1122
1123
1124void radeon_legacy_init_crtc(struct drm_device *dev,
1125 struct radeon_crtc *radeon_crtc)
1126{
1127 if (radeon_crtc->crtc_id == 1)
1128 radeon_crtc->crtc_offset = RADEON_CRTC2_H_TOTAL_DISP - RADEON_CRTC_H_TOTAL_DISP;
1129 drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs);
1130}
1/*
2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: Dave Airlie
24 * Alex Deucher
25 */
26#include <drm/drmP.h>
27#include <drm/drm_crtc_helper.h>
28#include <drm/radeon_drm.h>
29#include <drm/drm_fixed.h>
30#include "radeon.h"
31#include "atom.h"
32
33static void radeon_overscan_setup(struct drm_crtc *crtc,
34 struct drm_display_mode *mode)
35{
36 struct drm_device *dev = crtc->dev;
37 struct radeon_device *rdev = dev->dev_private;
38 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
39
40 WREG32(RADEON_OVR_CLR + radeon_crtc->crtc_offset, 0);
41 WREG32(RADEON_OVR_WID_LEFT_RIGHT + radeon_crtc->crtc_offset, 0);
42 WREG32(RADEON_OVR_WID_TOP_BOTTOM + radeon_crtc->crtc_offset, 0);
43}
44
45static void radeon_legacy_rmx_mode_set(struct drm_crtc *crtc,
46 struct drm_display_mode *mode)
47{
48 struct drm_device *dev = crtc->dev;
49 struct radeon_device *rdev = dev->dev_private;
50 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
51 int xres = mode->hdisplay;
52 int yres = mode->vdisplay;
53 bool hscale = true, vscale = true;
54 int hsync_wid;
55 int vsync_wid;
56 int hsync_start;
57 int blank_width;
58 u32 scale, inc, crtc_more_cntl;
59 u32 fp_horz_stretch, fp_vert_stretch, fp_horz_vert_active;
60 u32 fp_h_sync_strt_wid, fp_crtc_h_total_disp;
61 u32 fp_v_sync_strt_wid, fp_crtc_v_total_disp;
62 struct drm_display_mode *native_mode = &radeon_crtc->native_mode;
63
64 fp_vert_stretch = RREG32(RADEON_FP_VERT_STRETCH) &
65 (RADEON_VERT_STRETCH_RESERVED |
66 RADEON_VERT_AUTO_RATIO_INC);
67 fp_horz_stretch = RREG32(RADEON_FP_HORZ_STRETCH) &
68 (RADEON_HORZ_FP_LOOP_STRETCH |
69 RADEON_HORZ_AUTO_RATIO_INC);
70
71 crtc_more_cntl = 0;
72 if ((rdev->family == CHIP_RS100) ||
73 (rdev->family == CHIP_RS200)) {
74 /* This is to workaround the asic bug for RMX, some versions
75 of BIOS dosen't have this register initialized correctly. */
76 crtc_more_cntl |= RADEON_CRTC_H_CUTOFF_ACTIVE_EN;
77 }
78
79
80 fp_crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
81 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
82
83 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
84 if (!hsync_wid)
85 hsync_wid = 1;
86 hsync_start = mode->crtc_hsync_start - 8;
87
88 fp_h_sync_strt_wid = ((hsync_start & 0x1fff)
89 | ((hsync_wid & 0x3f) << 16)
90 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
91 ? RADEON_CRTC_H_SYNC_POL
92 : 0));
93
94 fp_crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
95 | ((mode->crtc_vdisplay - 1) << 16));
96
97 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
98 if (!vsync_wid)
99 vsync_wid = 1;
100
101 fp_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
102 | ((vsync_wid & 0x1f) << 16)
103 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
104 ? RADEON_CRTC_V_SYNC_POL
105 : 0));
106
107 fp_horz_vert_active = 0;
108
109 if (native_mode->hdisplay == 0 ||
110 native_mode->vdisplay == 0) {
111 hscale = false;
112 vscale = false;
113 } else {
114 if (xres > native_mode->hdisplay)
115 xres = native_mode->hdisplay;
116 if (yres > native_mode->vdisplay)
117 yres = native_mode->vdisplay;
118
119 if (xres == native_mode->hdisplay)
120 hscale = false;
121 if (yres == native_mode->vdisplay)
122 vscale = false;
123 }
124
125 switch (radeon_crtc->rmx_type) {
126 case RMX_FULL:
127 case RMX_ASPECT:
128 if (!hscale)
129 fp_horz_stretch |= ((xres/8-1) << 16);
130 else {
131 inc = (fp_horz_stretch & RADEON_HORZ_AUTO_RATIO_INC) ? 1 : 0;
132 scale = ((xres + inc) * RADEON_HORZ_STRETCH_RATIO_MAX)
133 / native_mode->hdisplay + 1;
134 fp_horz_stretch |= (((scale) & RADEON_HORZ_STRETCH_RATIO_MASK) |
135 RADEON_HORZ_STRETCH_BLEND |
136 RADEON_HORZ_STRETCH_ENABLE |
137 ((native_mode->hdisplay/8-1) << 16));
138 }
139
140 if (!vscale)
141 fp_vert_stretch |= ((yres-1) << 12);
142 else {
143 inc = (fp_vert_stretch & RADEON_VERT_AUTO_RATIO_INC) ? 1 : 0;
144 scale = ((yres + inc) * RADEON_VERT_STRETCH_RATIO_MAX)
145 / native_mode->vdisplay + 1;
146 fp_vert_stretch |= (((scale) & RADEON_VERT_STRETCH_RATIO_MASK) |
147 RADEON_VERT_STRETCH_ENABLE |
148 RADEON_VERT_STRETCH_BLEND |
149 ((native_mode->vdisplay-1) << 12));
150 }
151 break;
152 case RMX_CENTER:
153 fp_horz_stretch |= ((xres/8-1) << 16);
154 fp_vert_stretch |= ((yres-1) << 12);
155
156 crtc_more_cntl |= (RADEON_CRTC_AUTO_HORZ_CENTER_EN |
157 RADEON_CRTC_AUTO_VERT_CENTER_EN);
158
159 blank_width = (mode->crtc_hblank_end - mode->crtc_hblank_start) / 8;
160 if (blank_width > 110)
161 blank_width = 110;
162
163 fp_crtc_h_total_disp = (((blank_width) & 0x3ff)
164 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
165
166 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
167 if (!hsync_wid)
168 hsync_wid = 1;
169
170 fp_h_sync_strt_wid = ((((mode->crtc_hsync_start - mode->crtc_hblank_start) / 8) & 0x1fff)
171 | ((hsync_wid & 0x3f) << 16)
172 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
173 ? RADEON_CRTC_H_SYNC_POL
174 : 0));
175
176 fp_crtc_v_total_disp = (((mode->crtc_vblank_end - mode->crtc_vblank_start) & 0xffff)
177 | ((mode->crtc_vdisplay - 1) << 16));
178
179 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
180 if (!vsync_wid)
181 vsync_wid = 1;
182
183 fp_v_sync_strt_wid = ((((mode->crtc_vsync_start - mode->crtc_vblank_start) & 0xfff)
184 | ((vsync_wid & 0x1f) << 16)
185 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
186 ? RADEON_CRTC_V_SYNC_POL
187 : 0)));
188
189 fp_horz_vert_active = (((native_mode->vdisplay) & 0xfff) |
190 (((native_mode->hdisplay / 8) & 0x1ff) << 16));
191 break;
192 case RMX_OFF:
193 default:
194 fp_horz_stretch |= ((xres/8-1) << 16);
195 fp_vert_stretch |= ((yres-1) << 12);
196 break;
197 }
198
199 WREG32(RADEON_FP_HORZ_STRETCH, fp_horz_stretch);
200 WREG32(RADEON_FP_VERT_STRETCH, fp_vert_stretch);
201 WREG32(RADEON_CRTC_MORE_CNTL, crtc_more_cntl);
202 WREG32(RADEON_FP_HORZ_VERT_ACTIVE, fp_horz_vert_active);
203 WREG32(RADEON_FP_H_SYNC_STRT_WID, fp_h_sync_strt_wid);
204 WREG32(RADEON_FP_V_SYNC_STRT_WID, fp_v_sync_strt_wid);
205 WREG32(RADEON_FP_CRTC_H_TOTAL_DISP, fp_crtc_h_total_disp);
206 WREG32(RADEON_FP_CRTC_V_TOTAL_DISP, fp_crtc_v_total_disp);
207}
208
209static void radeon_pll_wait_for_read_update_complete(struct drm_device *dev)
210{
211 struct radeon_device *rdev = dev->dev_private;
212 int i = 0;
213
214 /* FIXME: Certain revisions of R300 can't recover here. Not sure of
215 the cause yet, but this workaround will mask the problem for now.
216 Other chips usually will pass at the very first test, so the
217 workaround shouldn't have any effect on them. */
218 for (i = 0;
219 (i < 10000 &&
220 RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R);
221 i++);
222}
223
224static void radeon_pll_write_update(struct drm_device *dev)
225{
226 struct radeon_device *rdev = dev->dev_private;
227
228 while (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_ATOMIC_UPDATE_R);
229
230 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
231 RADEON_PPLL_ATOMIC_UPDATE_W,
232 ~(RADEON_PPLL_ATOMIC_UPDATE_W));
233}
234
235static void radeon_pll2_wait_for_read_update_complete(struct drm_device *dev)
236{
237 struct radeon_device *rdev = dev->dev_private;
238 int i = 0;
239
240
241 /* FIXME: Certain revisions of R300 can't recover here. Not sure of
242 the cause yet, but this workaround will mask the problem for now.
243 Other chips usually will pass at the very first test, so the
244 workaround shouldn't have any effect on them. */
245 for (i = 0;
246 (i < 10000 &&
247 RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R);
248 i++);
249}
250
251static void radeon_pll2_write_update(struct drm_device *dev)
252{
253 struct radeon_device *rdev = dev->dev_private;
254
255 while (RREG32_PLL(RADEON_P2PLL_REF_DIV) & RADEON_P2PLL_ATOMIC_UPDATE_R);
256
257 WREG32_PLL_P(RADEON_P2PLL_REF_DIV,
258 RADEON_P2PLL_ATOMIC_UPDATE_W,
259 ~(RADEON_P2PLL_ATOMIC_UPDATE_W));
260}
261
262static uint8_t radeon_compute_pll_gain(uint16_t ref_freq, uint16_t ref_div,
263 uint16_t fb_div)
264{
265 unsigned int vcoFreq;
266
267 if (!ref_div)
268 return 1;
269
270 vcoFreq = ((unsigned)ref_freq * fb_div) / ref_div;
271
272 /*
273 * This is horribly crude: the VCO frequency range is divided into
274 * 3 parts, each part having a fixed PLL gain value.
275 */
276 if (vcoFreq >= 30000)
277 /*
278 * [300..max] MHz : 7
279 */
280 return 7;
281 else if (vcoFreq >= 18000)
282 /*
283 * [180..300) MHz : 4
284 */
285 return 4;
286 else
287 /*
288 * [0..180) MHz : 1
289 */
290 return 1;
291}
292
293static void radeon_crtc_dpms(struct drm_crtc *crtc, int mode)
294{
295 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
296 struct drm_device *dev = crtc->dev;
297 struct radeon_device *rdev = dev->dev_private;
298 uint32_t crtc_ext_cntl = 0;
299 uint32_t mask;
300
301 if (radeon_crtc->crtc_id)
302 mask = (RADEON_CRTC2_DISP_DIS |
303 RADEON_CRTC2_VSYNC_DIS |
304 RADEON_CRTC2_HSYNC_DIS |
305 RADEON_CRTC2_DISP_REQ_EN_B);
306 else
307 mask = (RADEON_CRTC_DISPLAY_DIS |
308 RADEON_CRTC_VSYNC_DIS |
309 RADEON_CRTC_HSYNC_DIS);
310
311 /*
312 * On all dual CRTC GPUs this bit controls the CRTC of the primary DAC.
313 * Therefore it is set in the DAC DMPS function.
314 * This is different for GPU's with a single CRTC but a primary and a
315 * TV DAC: here it controls the single CRTC no matter where it is
316 * routed. Therefore we set it here.
317 */
318 if (rdev->flags & RADEON_SINGLE_CRTC)
319 crtc_ext_cntl = RADEON_CRTC_CRT_ON;
320
321 switch (mode) {
322 case DRM_MODE_DPMS_ON:
323 radeon_crtc->enabled = true;
324 /* adjust pm to dpms changes BEFORE enabling crtcs */
325 radeon_pm_compute_clocks(rdev);
326 if (radeon_crtc->crtc_id)
327 WREG32_P(RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_EN, ~(RADEON_CRTC2_EN | mask));
328 else {
329 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_EN, ~(RADEON_CRTC_EN |
330 RADEON_CRTC_DISP_REQ_EN_B));
331 WREG32_P(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl, ~(mask | crtc_ext_cntl));
332 }
333 drm_vblank_post_modeset(dev, radeon_crtc->crtc_id);
334 radeon_crtc_load_lut(crtc);
335 break;
336 case DRM_MODE_DPMS_STANDBY:
337 case DRM_MODE_DPMS_SUSPEND:
338 case DRM_MODE_DPMS_OFF:
339 drm_vblank_pre_modeset(dev, radeon_crtc->crtc_id);
340 if (radeon_crtc->crtc_id)
341 WREG32_P(RADEON_CRTC2_GEN_CNTL, mask, ~(RADEON_CRTC2_EN | mask));
342 else {
343 WREG32_P(RADEON_CRTC_GEN_CNTL, RADEON_CRTC_DISP_REQ_EN_B, ~(RADEON_CRTC_EN |
344 RADEON_CRTC_DISP_REQ_EN_B));
345 WREG32_P(RADEON_CRTC_EXT_CNTL, mask, ~(mask | crtc_ext_cntl));
346 }
347 radeon_crtc->enabled = false;
348 /* adjust pm to dpms changes AFTER disabling crtcs */
349 radeon_pm_compute_clocks(rdev);
350 break;
351 }
352}
353
354int radeon_crtc_set_base(struct drm_crtc *crtc, int x, int y,
355 struct drm_framebuffer *old_fb)
356{
357 return radeon_crtc_do_set_base(crtc, old_fb, x, y, 0);
358}
359
360int radeon_crtc_set_base_atomic(struct drm_crtc *crtc,
361 struct drm_framebuffer *fb,
362 int x, int y, enum mode_set_atomic state)
363{
364 return radeon_crtc_do_set_base(crtc, fb, x, y, 1);
365}
366
367int radeon_crtc_do_set_base(struct drm_crtc *crtc,
368 struct drm_framebuffer *fb,
369 int x, int y, int atomic)
370{
371 struct drm_device *dev = crtc->dev;
372 struct radeon_device *rdev = dev->dev_private;
373 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
374 struct radeon_framebuffer *radeon_fb;
375 struct drm_framebuffer *target_fb;
376 struct drm_gem_object *obj;
377 struct radeon_bo *rbo;
378 uint64_t base;
379 uint32_t crtc_offset, crtc_offset_cntl, crtc_tile_x0_y0 = 0;
380 uint32_t crtc_pitch, pitch_pixels;
381 uint32_t tiling_flags;
382 int format;
383 uint32_t gen_cntl_reg, gen_cntl_val;
384 int r;
385
386 DRM_DEBUG_KMS("\n");
387 /* no fb bound */
388 if (!atomic && !crtc->primary->fb) {
389 DRM_DEBUG_KMS("No FB bound\n");
390 return 0;
391 }
392
393 if (atomic) {
394 radeon_fb = to_radeon_framebuffer(fb);
395 target_fb = fb;
396 }
397 else {
398 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
399 target_fb = crtc->primary->fb;
400 }
401
402 switch (target_fb->bits_per_pixel) {
403 case 8:
404 format = 2;
405 break;
406 case 15: /* 555 */
407 format = 3;
408 break;
409 case 16: /* 565 */
410 format = 4;
411 break;
412 case 24: /* RGB */
413 format = 5;
414 break;
415 case 32: /* xRGB */
416 format = 6;
417 break;
418 default:
419 return false;
420 }
421
422 /* Pin framebuffer & get tilling informations */
423 obj = radeon_fb->obj;
424 rbo = gem_to_radeon_bo(obj);
425retry:
426 r = radeon_bo_reserve(rbo, false);
427 if (unlikely(r != 0))
428 return r;
429 /* Only 27 bit offset for legacy CRTC */
430 r = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, 1 << 27,
431 &base);
432 if (unlikely(r != 0)) {
433 radeon_bo_unreserve(rbo);
434
435 /* On old GPU like RN50 with little vram pining can fails because
436 * current fb is taking all space needed. So instead of unpining
437 * the old buffer after pining the new one, first unpin old one
438 * and then retry pining new one.
439 *
440 * As only master can set mode only master can pin and it is
441 * unlikely the master client will race with itself especialy
442 * on those old gpu with single crtc.
443 *
444 * We don't shutdown the display controller because new buffer
445 * will end up in same spot.
446 */
447 if (!atomic && fb && fb != crtc->primary->fb) {
448 struct radeon_bo *old_rbo;
449 unsigned long nsize, osize;
450
451 old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj);
452 osize = radeon_bo_size(old_rbo);
453 nsize = radeon_bo_size(rbo);
454 if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) {
455 radeon_bo_unpin(old_rbo);
456 radeon_bo_unreserve(old_rbo);
457 fb = NULL;
458 goto retry;
459 }
460 }
461 return -EINVAL;
462 }
463 radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
464 radeon_bo_unreserve(rbo);
465 if (tiling_flags & RADEON_TILING_MICRO)
466 DRM_ERROR("trying to scanout microtiled buffer\n");
467
468 /* if scanout was in GTT this really wouldn't work */
469 /* crtc offset is from display base addr not FB location */
470 radeon_crtc->legacy_display_base_addr = rdev->mc.vram_start;
471
472 base -= radeon_crtc->legacy_display_base_addr;
473
474 crtc_offset_cntl = 0;
475
476 pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
477 crtc_pitch = (((pitch_pixels * target_fb->bits_per_pixel) +
478 ((target_fb->bits_per_pixel * 8) - 1)) /
479 (target_fb->bits_per_pixel * 8));
480 crtc_pitch |= crtc_pitch << 16;
481
482 crtc_offset_cntl |= RADEON_CRTC_GUI_TRIG_OFFSET_LEFT_EN;
483 if (tiling_flags & RADEON_TILING_MACRO) {
484 if (ASIC_IS_R300(rdev))
485 crtc_offset_cntl |= (R300_CRTC_X_Y_MODE_EN |
486 R300_CRTC_MICRO_TILE_BUFFER_DIS |
487 R300_CRTC_MACRO_TILE_EN);
488 else
489 crtc_offset_cntl |= RADEON_CRTC_TILE_EN;
490 } else {
491 if (ASIC_IS_R300(rdev))
492 crtc_offset_cntl &= ~(R300_CRTC_X_Y_MODE_EN |
493 R300_CRTC_MICRO_TILE_BUFFER_DIS |
494 R300_CRTC_MACRO_TILE_EN);
495 else
496 crtc_offset_cntl &= ~RADEON_CRTC_TILE_EN;
497 }
498
499 if (tiling_flags & RADEON_TILING_MACRO) {
500 if (ASIC_IS_R300(rdev)) {
501 crtc_tile_x0_y0 = x | (y << 16);
502 base &= ~0x7ff;
503 } else {
504 int byteshift = target_fb->bits_per_pixel >> 4;
505 int tile_addr = (((y >> 3) * pitch_pixels + x) >> (8 - byteshift)) << 11;
506 base += tile_addr + ((x << byteshift) % 256) + ((y % 8) << 8);
507 crtc_offset_cntl |= (y % 16);
508 }
509 } else {
510 int offset = y * pitch_pixels + x;
511 switch (target_fb->bits_per_pixel) {
512 case 8:
513 offset *= 1;
514 break;
515 case 15:
516 case 16:
517 offset *= 2;
518 break;
519 case 24:
520 offset *= 3;
521 break;
522 case 32:
523 offset *= 4;
524 break;
525 default:
526 return false;
527 }
528 base += offset;
529 }
530
531 base &= ~7;
532
533 if (radeon_crtc->crtc_id == 1)
534 gen_cntl_reg = RADEON_CRTC2_GEN_CNTL;
535 else
536 gen_cntl_reg = RADEON_CRTC_GEN_CNTL;
537
538 gen_cntl_val = RREG32(gen_cntl_reg);
539 gen_cntl_val &= ~(0xf << 8);
540 gen_cntl_val |= (format << 8);
541 gen_cntl_val &= ~RADEON_CRTC_VSTAT_MODE_MASK;
542 WREG32(gen_cntl_reg, gen_cntl_val);
543
544 crtc_offset = (u32)base;
545
546 WREG32(RADEON_DISPLAY_BASE_ADDR + radeon_crtc->crtc_offset, radeon_crtc->legacy_display_base_addr);
547
548 if (ASIC_IS_R300(rdev)) {
549 if (radeon_crtc->crtc_id)
550 WREG32(R300_CRTC2_TILE_X0_Y0, crtc_tile_x0_y0);
551 else
552 WREG32(R300_CRTC_TILE_X0_Y0, crtc_tile_x0_y0);
553 }
554 WREG32(RADEON_CRTC_OFFSET_CNTL + radeon_crtc->crtc_offset, crtc_offset_cntl);
555 WREG32(RADEON_CRTC_OFFSET + radeon_crtc->crtc_offset, crtc_offset);
556 WREG32(RADEON_CRTC_PITCH + radeon_crtc->crtc_offset, crtc_pitch);
557
558 if (!atomic && fb && fb != crtc->primary->fb) {
559 radeon_fb = to_radeon_framebuffer(fb);
560 rbo = gem_to_radeon_bo(radeon_fb->obj);
561 r = radeon_bo_reserve(rbo, false);
562 if (unlikely(r != 0))
563 return r;
564 radeon_bo_unpin(rbo);
565 radeon_bo_unreserve(rbo);
566 }
567
568 /* Bytes per pixel may have changed */
569 radeon_bandwidth_update(rdev);
570
571 return 0;
572}
573
574static bool radeon_set_crtc_timing(struct drm_crtc *crtc, struct drm_display_mode *mode)
575{
576 struct drm_device *dev = crtc->dev;
577 struct radeon_device *rdev = dev->dev_private;
578 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
579 struct drm_encoder *encoder;
580 int format;
581 int hsync_start;
582 int hsync_wid;
583 int vsync_wid;
584 uint32_t crtc_h_total_disp;
585 uint32_t crtc_h_sync_strt_wid;
586 uint32_t crtc_v_total_disp;
587 uint32_t crtc_v_sync_strt_wid;
588 bool is_tv = false;
589
590 DRM_DEBUG_KMS("\n");
591 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
592 if (encoder->crtc == crtc) {
593 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
594 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
595 is_tv = true;
596 DRM_INFO("crtc %d is connected to a TV\n", radeon_crtc->crtc_id);
597 break;
598 }
599 }
600 }
601
602 switch (crtc->primary->fb->bits_per_pixel) {
603 case 8:
604 format = 2;
605 break;
606 case 15: /* 555 */
607 format = 3;
608 break;
609 case 16: /* 565 */
610 format = 4;
611 break;
612 case 24: /* RGB */
613 format = 5;
614 break;
615 case 32: /* xRGB */
616 format = 6;
617 break;
618 default:
619 return false;
620 }
621
622 crtc_h_total_disp = ((((mode->crtc_htotal / 8) - 1) & 0x3ff)
623 | ((((mode->crtc_hdisplay / 8) - 1) & 0x1ff) << 16));
624
625 hsync_wid = (mode->crtc_hsync_end - mode->crtc_hsync_start) / 8;
626 if (!hsync_wid)
627 hsync_wid = 1;
628 hsync_start = mode->crtc_hsync_start - 8;
629
630 crtc_h_sync_strt_wid = ((hsync_start & 0x1fff)
631 | ((hsync_wid & 0x3f) << 16)
632 | ((mode->flags & DRM_MODE_FLAG_NHSYNC)
633 ? RADEON_CRTC_H_SYNC_POL
634 : 0));
635
636 /* This works for double scan mode. */
637 crtc_v_total_disp = (((mode->crtc_vtotal - 1) & 0xffff)
638 | ((mode->crtc_vdisplay - 1) << 16));
639
640 vsync_wid = mode->crtc_vsync_end - mode->crtc_vsync_start;
641 if (!vsync_wid)
642 vsync_wid = 1;
643
644 crtc_v_sync_strt_wid = (((mode->crtc_vsync_start - 1) & 0xfff)
645 | ((vsync_wid & 0x1f) << 16)
646 | ((mode->flags & DRM_MODE_FLAG_NVSYNC)
647 ? RADEON_CRTC_V_SYNC_POL
648 : 0));
649
650 if (radeon_crtc->crtc_id) {
651 uint32_t crtc2_gen_cntl;
652 uint32_t disp2_merge_cntl;
653
654 /* if TV DAC is enabled for another crtc and keep it enabled */
655 crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL) & 0x00718080;
656 crtc2_gen_cntl |= ((format << 8)
657 | RADEON_CRTC2_VSYNC_DIS
658 | RADEON_CRTC2_HSYNC_DIS
659 | RADEON_CRTC2_DISP_DIS
660 | RADEON_CRTC2_DISP_REQ_EN_B
661 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN)
662 ? RADEON_CRTC2_DBL_SCAN_EN
663 : 0)
664 | ((mode->flags & DRM_MODE_FLAG_CSYNC)
665 ? RADEON_CRTC2_CSYNC_EN
666 : 0)
667 | ((mode->flags & DRM_MODE_FLAG_INTERLACE)
668 ? RADEON_CRTC2_INTERLACE_EN
669 : 0));
670
671 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
672 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
673 crtc2_gen_cntl |= RADEON_CRTC2_EN;
674
675 disp2_merge_cntl = RREG32(RADEON_DISP2_MERGE_CNTL);
676 disp2_merge_cntl &= ~RADEON_DISP2_RGB_OFFSET_EN;
677
678 WREG32(RADEON_DISP2_MERGE_CNTL, disp2_merge_cntl);
679 WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl);
680
681 WREG32(RADEON_FP_H2_SYNC_STRT_WID, crtc_h_sync_strt_wid);
682 WREG32(RADEON_FP_V2_SYNC_STRT_WID, crtc_v_sync_strt_wid);
683 } else {
684 uint32_t crtc_gen_cntl;
685 uint32_t crtc_ext_cntl;
686 uint32_t disp_merge_cntl;
687
688 crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL) & 0x00718000;
689 crtc_gen_cntl |= (RADEON_CRTC_EXT_DISP_EN
690 | (format << 8)
691 | RADEON_CRTC_DISP_REQ_EN_B
692 | ((mode->flags & DRM_MODE_FLAG_DBLSCAN)
693 ? RADEON_CRTC_DBL_SCAN_EN
694 : 0)
695 | ((mode->flags & DRM_MODE_FLAG_CSYNC)
696 ? RADEON_CRTC_CSYNC_EN
697 : 0)
698 | ((mode->flags & DRM_MODE_FLAG_INTERLACE)
699 ? RADEON_CRTC_INTERLACE_EN
700 : 0));
701
702 /* rs4xx chips seem to like to have the crtc enabled when the timing is set */
703 if ((rdev->family == CHIP_RS400) || (rdev->family == CHIP_RS480))
704 crtc_gen_cntl |= RADEON_CRTC_EN;
705
706 crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL);
707 crtc_ext_cntl |= (RADEON_XCRT_CNT_EN |
708 RADEON_CRTC_VSYNC_DIS |
709 RADEON_CRTC_HSYNC_DIS |
710 RADEON_CRTC_DISPLAY_DIS);
711
712 disp_merge_cntl = RREG32(RADEON_DISP_MERGE_CNTL);
713 disp_merge_cntl &= ~RADEON_DISP_RGB_OFFSET_EN;
714
715 WREG32(RADEON_DISP_MERGE_CNTL, disp_merge_cntl);
716 WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl);
717 WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl);
718 }
719
720 if (is_tv)
721 radeon_legacy_tv_adjust_crtc_reg(encoder, &crtc_h_total_disp,
722 &crtc_h_sync_strt_wid, &crtc_v_total_disp,
723 &crtc_v_sync_strt_wid);
724
725 WREG32(RADEON_CRTC_H_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_h_total_disp);
726 WREG32(RADEON_CRTC_H_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_h_sync_strt_wid);
727 WREG32(RADEON_CRTC_V_TOTAL_DISP + radeon_crtc->crtc_offset, crtc_v_total_disp);
728 WREG32(RADEON_CRTC_V_SYNC_STRT_WID + radeon_crtc->crtc_offset, crtc_v_sync_strt_wid);
729
730 return true;
731}
732
733static void radeon_set_pll(struct drm_crtc *crtc, struct drm_display_mode *mode)
734{
735 struct drm_device *dev = crtc->dev;
736 struct radeon_device *rdev = dev->dev_private;
737 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
738 struct drm_encoder *encoder;
739 uint32_t feedback_div = 0;
740 uint32_t frac_fb_div = 0;
741 uint32_t reference_div = 0;
742 uint32_t post_divider = 0;
743 uint32_t freq = 0;
744 uint8_t pll_gain;
745 bool use_bios_divs = false;
746 /* PLL registers */
747 uint32_t pll_ref_div = 0;
748 uint32_t pll_fb_post_div = 0;
749 uint32_t htotal_cntl = 0;
750 bool is_tv = false;
751 struct radeon_pll *pll;
752
753 struct {
754 int divider;
755 int bitvalue;
756 } *post_div, post_divs[] = {
757 /* From RAGE 128 VR/RAGE 128 GL Register
758 * Reference Manual (Technical Reference
759 * Manual P/N RRG-G04100-C Rev. 0.04), page
760 * 3-17 (PLL_DIV_[3:0]).
761 */
762 { 1, 0 }, /* VCLK_SRC */
763 { 2, 1 }, /* VCLK_SRC/2 */
764 { 4, 2 }, /* VCLK_SRC/4 */
765 { 8, 3 }, /* VCLK_SRC/8 */
766 { 3, 4 }, /* VCLK_SRC/3 */
767 { 16, 5 }, /* VCLK_SRC/16 */
768 { 6, 6 }, /* VCLK_SRC/6 */
769 { 12, 7 }, /* VCLK_SRC/12 */
770 { 0, 0 }
771 };
772
773 if (radeon_crtc->crtc_id)
774 pll = &rdev->clock.p2pll;
775 else
776 pll = &rdev->clock.p1pll;
777
778 pll->flags = RADEON_PLL_LEGACY;
779
780 if (mode->clock > 200000) /* range limits??? */
781 pll->flags |= RADEON_PLL_PREFER_HIGH_FB_DIV;
782 else
783 pll->flags |= RADEON_PLL_PREFER_LOW_REF_DIV;
784
785 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
786 if (encoder->crtc == crtc) {
787 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
788
789 if (radeon_encoder->active_device & ATOM_DEVICE_TV_SUPPORT) {
790 is_tv = true;
791 break;
792 }
793
794 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
795 pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;
796 if (encoder->encoder_type == DRM_MODE_ENCODER_LVDS) {
797 if (!rdev->is_atom_bios) {
798 struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
799 struct radeon_encoder_lvds *lvds = (struct radeon_encoder_lvds *)radeon_encoder->enc_priv;
800 if (lvds) {
801 if (lvds->use_bios_dividers) {
802 pll_ref_div = lvds->panel_ref_divider;
803 pll_fb_post_div = (lvds->panel_fb_divider |
804 (lvds->panel_post_divider << 16));
805 htotal_cntl = 0;
806 use_bios_divs = true;
807 }
808 }
809 }
810 pll->flags |= RADEON_PLL_USE_REF_DIV;
811 }
812 }
813 }
814
815 DRM_DEBUG_KMS("\n");
816
817 if (!use_bios_divs) {
818 radeon_compute_pll_legacy(pll, mode->clock,
819 &freq, &feedback_div, &frac_fb_div,
820 &reference_div, &post_divider);
821
822 for (post_div = &post_divs[0]; post_div->divider; ++post_div) {
823 if (post_div->divider == post_divider)
824 break;
825 }
826
827 if (!post_div->divider)
828 post_div = &post_divs[0];
829
830 DRM_DEBUG_KMS("dc=%u, fd=%d, rd=%d, pd=%d\n",
831 (unsigned)freq,
832 feedback_div,
833 reference_div,
834 post_divider);
835
836 pll_ref_div = reference_div;
837#if defined(__powerpc__) && (0) /* TODO */
838 /* apparently programming this otherwise causes a hang??? */
839 if (info->MacModel == RADEON_MAC_IBOOK)
840 pll_fb_post_div = 0x000600ad;
841 else
842#endif
843 pll_fb_post_div = (feedback_div | (post_div->bitvalue << 16));
844
845 htotal_cntl = mode->htotal & 0x7;
846
847 }
848
849 pll_gain = radeon_compute_pll_gain(pll->reference_freq,
850 pll_ref_div & 0x3ff,
851 pll_fb_post_div & 0x7ff);
852
853 if (radeon_crtc->crtc_id) {
854 uint32_t pixclks_cntl = ((RREG32_PLL(RADEON_PIXCLKS_CNTL) &
855 ~(RADEON_PIX2CLK_SRC_SEL_MASK)) |
856 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK);
857
858 if (is_tv) {
859 radeon_legacy_tv_adjust_pll2(encoder, &htotal_cntl,
860 &pll_ref_div, &pll_fb_post_div,
861 &pixclks_cntl);
862 }
863
864 WREG32_PLL_P(RADEON_PIXCLKS_CNTL,
865 RADEON_PIX2CLK_SRC_SEL_CPUCLK,
866 ~(RADEON_PIX2CLK_SRC_SEL_MASK));
867
868 WREG32_PLL_P(RADEON_P2PLL_CNTL,
869 RADEON_P2PLL_RESET
870 | RADEON_P2PLL_ATOMIC_UPDATE_EN
871 | ((uint32_t)pll_gain << RADEON_P2PLL_PVG_SHIFT),
872 ~(RADEON_P2PLL_RESET
873 | RADEON_P2PLL_ATOMIC_UPDATE_EN
874 | RADEON_P2PLL_PVG_MASK));
875
876 WREG32_PLL_P(RADEON_P2PLL_REF_DIV,
877 pll_ref_div,
878 ~RADEON_P2PLL_REF_DIV_MASK);
879
880 WREG32_PLL_P(RADEON_P2PLL_DIV_0,
881 pll_fb_post_div,
882 ~RADEON_P2PLL_FB0_DIV_MASK);
883
884 WREG32_PLL_P(RADEON_P2PLL_DIV_0,
885 pll_fb_post_div,
886 ~RADEON_P2PLL_POST0_DIV_MASK);
887
888 radeon_pll2_write_update(dev);
889 radeon_pll2_wait_for_read_update_complete(dev);
890
891 WREG32_PLL(RADEON_HTOTAL2_CNTL, htotal_cntl);
892
893 WREG32_PLL_P(RADEON_P2PLL_CNTL,
894 0,
895 ~(RADEON_P2PLL_RESET
896 | RADEON_P2PLL_SLEEP
897 | RADEON_P2PLL_ATOMIC_UPDATE_EN));
898
899 DRM_DEBUG_KMS("Wrote2: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
900 (unsigned)pll_ref_div,
901 (unsigned)pll_fb_post_div,
902 (unsigned)htotal_cntl,
903 RREG32_PLL(RADEON_P2PLL_CNTL));
904 DRM_DEBUG_KMS("Wrote2: rd=%u, fd=%u, pd=%u\n",
905 (unsigned)pll_ref_div & RADEON_P2PLL_REF_DIV_MASK,
906 (unsigned)pll_fb_post_div & RADEON_P2PLL_FB0_DIV_MASK,
907 (unsigned)((pll_fb_post_div &
908 RADEON_P2PLL_POST0_DIV_MASK) >> 16));
909
910 mdelay(50); /* Let the clock to lock */
911
912 WREG32_PLL_P(RADEON_PIXCLKS_CNTL,
913 RADEON_PIX2CLK_SRC_SEL_P2PLLCLK,
914 ~(RADEON_PIX2CLK_SRC_SEL_MASK));
915
916 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
917 } else {
918 uint32_t pixclks_cntl;
919
920
921 if (is_tv) {
922 pixclks_cntl = RREG32_PLL(RADEON_PIXCLKS_CNTL);
923 radeon_legacy_tv_adjust_pll1(encoder, &htotal_cntl, &pll_ref_div,
924 &pll_fb_post_div, &pixclks_cntl);
925 }
926
927 if (rdev->flags & RADEON_IS_MOBILITY) {
928 /* A temporal workaround for the occasional blanking on certain laptop panels.
929 This appears to related to the PLL divider registers (fail to lock?).
930 It occurs even when all dividers are the same with their old settings.
931 In this case we really don't need to fiddle with PLL registers.
932 By doing this we can avoid the blanking problem with some panels.
933 */
934 if ((pll_ref_div == (RREG32_PLL(RADEON_PPLL_REF_DIV) & RADEON_PPLL_REF_DIV_MASK)) &&
935 (pll_fb_post_div == (RREG32_PLL(RADEON_PPLL_DIV_3) &
936 (RADEON_PPLL_POST3_DIV_MASK | RADEON_PPLL_FB3_DIV_MASK)))) {
937 WREG32_P(RADEON_CLOCK_CNTL_INDEX,
938 RADEON_PLL_DIV_SEL,
939 ~(RADEON_PLL_DIV_SEL));
940 r100_pll_errata_after_index(rdev);
941 return;
942 }
943 }
944
945 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL,
946 RADEON_VCLK_SRC_SEL_CPUCLK,
947 ~(RADEON_VCLK_SRC_SEL_MASK));
948 WREG32_PLL_P(RADEON_PPLL_CNTL,
949 RADEON_PPLL_RESET
950 | RADEON_PPLL_ATOMIC_UPDATE_EN
951 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN
952 | ((uint32_t)pll_gain << RADEON_PPLL_PVG_SHIFT),
953 ~(RADEON_PPLL_RESET
954 | RADEON_PPLL_ATOMIC_UPDATE_EN
955 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN
956 | RADEON_PPLL_PVG_MASK));
957
958 WREG32_P(RADEON_CLOCK_CNTL_INDEX,
959 RADEON_PLL_DIV_SEL,
960 ~(RADEON_PLL_DIV_SEL));
961 r100_pll_errata_after_index(rdev);
962
963 if (ASIC_IS_R300(rdev) ||
964 (rdev->family == CHIP_RS300) ||
965 (rdev->family == CHIP_RS400) ||
966 (rdev->family == CHIP_RS480)) {
967 if (pll_ref_div & R300_PPLL_REF_DIV_ACC_MASK) {
968 /* When restoring console mode, use saved PPLL_REF_DIV
969 * setting.
970 */
971 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
972 pll_ref_div,
973 0);
974 } else {
975 /* R300 uses ref_div_acc field as real ref divider */
976 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
977 (pll_ref_div << R300_PPLL_REF_DIV_ACC_SHIFT),
978 ~R300_PPLL_REF_DIV_ACC_MASK);
979 }
980 } else
981 WREG32_PLL_P(RADEON_PPLL_REF_DIV,
982 pll_ref_div,
983 ~RADEON_PPLL_REF_DIV_MASK);
984
985 WREG32_PLL_P(RADEON_PPLL_DIV_3,
986 pll_fb_post_div,
987 ~RADEON_PPLL_FB3_DIV_MASK);
988
989 WREG32_PLL_P(RADEON_PPLL_DIV_3,
990 pll_fb_post_div,
991 ~RADEON_PPLL_POST3_DIV_MASK);
992
993 radeon_pll_write_update(dev);
994 radeon_pll_wait_for_read_update_complete(dev);
995
996 WREG32_PLL(RADEON_HTOTAL_CNTL, htotal_cntl);
997
998 WREG32_PLL_P(RADEON_PPLL_CNTL,
999 0,
1000 ~(RADEON_PPLL_RESET
1001 | RADEON_PPLL_SLEEP
1002 | RADEON_PPLL_ATOMIC_UPDATE_EN
1003 | RADEON_PPLL_VGA_ATOMIC_UPDATE_EN));
1004
1005 DRM_DEBUG_KMS("Wrote: 0x%08x 0x%08x 0x%08x (0x%08x)\n",
1006 pll_ref_div,
1007 pll_fb_post_div,
1008 (unsigned)htotal_cntl,
1009 RREG32_PLL(RADEON_PPLL_CNTL));
1010 DRM_DEBUG_KMS("Wrote: rd=%d, fd=%d, pd=%d\n",
1011 pll_ref_div & RADEON_PPLL_REF_DIV_MASK,
1012 pll_fb_post_div & RADEON_PPLL_FB3_DIV_MASK,
1013 (pll_fb_post_div & RADEON_PPLL_POST3_DIV_MASK) >> 16);
1014
1015 mdelay(50); /* Let the clock to lock */
1016
1017 WREG32_PLL_P(RADEON_VCLK_ECP_CNTL,
1018 RADEON_VCLK_SRC_SEL_PPLLCLK,
1019 ~(RADEON_VCLK_SRC_SEL_MASK));
1020
1021 if (is_tv)
1022 WREG32_PLL(RADEON_PIXCLKS_CNTL, pixclks_cntl);
1023 }
1024}
1025
1026static bool radeon_crtc_mode_fixup(struct drm_crtc *crtc,
1027 const struct drm_display_mode *mode,
1028 struct drm_display_mode *adjusted_mode)
1029{
1030 if (!radeon_crtc_scaling_mode_fixup(crtc, mode, adjusted_mode))
1031 return false;
1032 return true;
1033}
1034
1035static int radeon_crtc_mode_set(struct drm_crtc *crtc,
1036 struct drm_display_mode *mode,
1037 struct drm_display_mode *adjusted_mode,
1038 int x, int y, struct drm_framebuffer *old_fb)
1039{
1040 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
1041
1042 /* TODO TV */
1043 radeon_crtc_set_base(crtc, x, y, old_fb);
1044 radeon_set_crtc_timing(crtc, adjusted_mode);
1045 radeon_set_pll(crtc, adjusted_mode);
1046 radeon_overscan_setup(crtc, adjusted_mode);
1047 if (radeon_crtc->crtc_id == 0) {
1048 radeon_legacy_rmx_mode_set(crtc, adjusted_mode);
1049 } else {
1050 if (radeon_crtc->rmx_type != RMX_OFF) {
1051 /* FIXME: only first crtc has rmx what should we
1052 * do ?
1053 */
1054 DRM_ERROR("Mode need scaling but only first crtc can do that.\n");
1055 }
1056 }
1057 return 0;
1058}
1059
1060static void radeon_crtc_prepare(struct drm_crtc *crtc)
1061{
1062 struct drm_device *dev = crtc->dev;
1063 struct drm_crtc *crtci;
1064
1065 /*
1066 * The hardware wedges sometimes if you reconfigure one CRTC
1067 * whilst another is running (see fdo bug #24611).
1068 */
1069 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head)
1070 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_OFF);
1071}
1072
1073static void radeon_crtc_commit(struct drm_crtc *crtc)
1074{
1075 struct drm_device *dev = crtc->dev;
1076 struct drm_crtc *crtci;
1077
1078 /*
1079 * Reenable the CRTCs that should be running.
1080 */
1081 list_for_each_entry(crtci, &dev->mode_config.crtc_list, head) {
1082 if (crtci->enabled)
1083 radeon_crtc_dpms(crtci, DRM_MODE_DPMS_ON);
1084 }
1085}
1086
1087static void radeon_crtc_disable(struct drm_crtc *crtc)
1088{
1089 radeon_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1090 if (crtc->primary->fb) {
1091 int r;
1092 struct radeon_framebuffer *radeon_fb;
1093 struct radeon_bo *rbo;
1094
1095 radeon_fb = to_radeon_framebuffer(crtc->primary->fb);
1096 rbo = gem_to_radeon_bo(radeon_fb->obj);
1097 r = radeon_bo_reserve(rbo, false);
1098 if (unlikely(r))
1099 DRM_ERROR("failed to reserve rbo before unpin\n");
1100 else {
1101 radeon_bo_unpin(rbo);
1102 radeon_bo_unreserve(rbo);
1103 }
1104 }
1105}
1106
1107static const struct drm_crtc_helper_funcs legacy_helper_funcs = {
1108 .dpms = radeon_crtc_dpms,
1109 .mode_fixup = radeon_crtc_mode_fixup,
1110 .mode_set = radeon_crtc_mode_set,
1111 .mode_set_base = radeon_crtc_set_base,
1112 .mode_set_base_atomic = radeon_crtc_set_base_atomic,
1113 .prepare = radeon_crtc_prepare,
1114 .commit = radeon_crtc_commit,
1115 .load_lut = radeon_crtc_load_lut,
1116 .disable = radeon_crtc_disable
1117};
1118
1119
1120void radeon_legacy_init_crtc(struct drm_device *dev,
1121 struct radeon_crtc *radeon_crtc)
1122{
1123 if (radeon_crtc->crtc_id == 1)
1124 radeon_crtc->crtc_offset = RADEON_CRTC2_H_TOTAL_DISP - RADEON_CRTC_H_TOTAL_DISP;
1125 drm_crtc_helper_add(&radeon_crtc->base, &legacy_helper_funcs);
1126}