2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
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:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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.
23 * Authors: Dave Airlie
27 #include "radeon_drm.h"
28 #include "radeon_drv.h"
31 #include <asm/div64.h>
33 #include "drm_crtc_helper.h"
35 #define CURSOR_WIDTH 64
36 #define CURSOR_HEIGHT 64
38 int radeon_ddc_dump(struct drm_connector *connector);
42 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
44 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
45 struct drm_device *dev = crtc->dev;
46 struct drm_radeon_private *dev_priv = dev->dev_private;
49 DRM_DEBUG("%d\n", radeon_crtc->crtc_id);
50 RADEON_WRITE(AVIVO_DC_LUTA_CONTROL + radeon_crtc->crtc_offset, 0);
52 RADEON_WRITE(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE + radeon_crtc->crtc_offset, 0);
53 RADEON_WRITE(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN + radeon_crtc->crtc_offset, 0);
54 RADEON_WRITE(AVIVO_DC_LUTA_BLACK_OFFSET_RED + radeon_crtc->crtc_offset, 0);
56 RADEON_WRITE(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE + radeon_crtc->crtc_offset, 0xffff);
57 RADEON_WRITE(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN + radeon_crtc->crtc_offset, 0xffff);
58 RADEON_WRITE(AVIVO_DC_LUTA_WHITE_OFFSET_RED + radeon_crtc->crtc_offset, 0xffff);
60 RADEON_WRITE(AVIVO_DC_LUT_RW_SELECT, radeon_crtc->crtc_id);
61 RADEON_WRITE(AVIVO_DC_LUT_RW_MODE, 0);
62 RADEON_WRITE(AVIVO_DC_LUT_WRITE_EN_MASK, 0x0000003f);
64 for (i = 0; i < 256; i++) {
66 RADEON_WRITE8(AVIVO_DC_LUT_RW_INDEX, i);
67 RADEON_WRITE(AVIVO_DC_LUT_30_COLOR,
68 (radeon_crtc->lut_r[i] << 22) |
69 (radeon_crtc->lut_g[i] << 12) |
70 (radeon_crtc->lut_b[i] << 2));
73 RADEON_WRITE(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id);
77 void radeon_crtc_load_lut(struct drm_crtc *crtc)
79 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
80 struct drm_device *dev = crtc->dev;
81 struct drm_radeon_private *dev_priv = dev->dev_private;
88 if (radeon_is_avivo(dev_priv)) {
89 avivo_crtc_load_lut(crtc);
93 temp = RADEON_READ(RADEON_DAC_CNTL2);
94 if (radeon_crtc->crtc_id == 0)
95 temp &= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL;
97 temp |= RADEON_DAC2_PALETTE_ACC_CTL;
98 RADEON_WRITE(RADEON_DAC_CNTL2, temp);
100 for (i = 0; i < 256; i++) {
101 // OUTPAL(i, radeon_crtc->lut_r[i], radeon_crtc->lut_g[i], radeon_crtc->lut_b[i]);
106 /** Sets the color ramps on behalf of RandR */
107 void radeon_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
110 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
113 DRM_DEBUG("gamma set %d\n", radeon_crtc->crtc_id);
114 radeon_crtc->lut_r[regno] = red >> 8;
115 radeon_crtc->lut_g[regno] = green >> 8;
116 radeon_crtc->lut_b[regno] = blue >> 8;
121 static void avivo_lock_cursor(struct drm_crtc *crtc, bool lock)
123 struct drm_radeon_private *dev_priv = crtc->dev->dev_private;
124 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
128 tmp = RADEON_READ(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset);
130 tmp |= AVIVO_D1CURSOR_UPDATE_LOCK;
132 tmp &= ~AVIVO_D1CURSOR_UPDATE_LOCK;
134 RADEON_WRITE(AVIVO_D1CUR_UPDATE + radeon_crtc->crtc_offset, tmp);
137 static int radeon_crtc_cursor_set(struct drm_crtc *crtc,
138 struct drm_file *file_priv,
143 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
144 struct drm_radeon_private *dev_priv = crtc->dev->dev_private;
145 struct drm_gem_object *obj;
146 struct drm_radeon_gem_object *obj_priv;
149 RADEON_WRITE(AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset, 0);
151 /* turn off cursor */
154 obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
156 DRM_ERROR("Cannot find cursor object %x for crtc %d\n", handle, radeon_crtc->crtc_id);
160 obj_priv = obj->driver_private;
162 RADEON_WRITE(AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset, 0);
163 if (radeon_is_avivo(dev_priv)) {
164 RADEON_WRITE(AVIVO_D1CUR_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
165 dev_priv->fb_location + obj_priv->bo->offset);
166 RADEON_WRITE(AVIVO_D1CUR_SIZE + radeon_crtc->crtc_offset,
167 (CURSOR_WIDTH - 1) << 16 | (CURSOR_HEIGHT - 1));
168 RADEON_WRITE(AVIVO_D1CUR_CONTROL + radeon_crtc->crtc_offset,
169 AVIVO_D1CURSOR_EN | (AVIVO_D1CURSOR_MODE_24BPP << AVIVO_D1CURSOR_MODE_SHIFT));
172 mutex_lock(&crtc->dev->struct_mutex);
173 drm_gem_object_unreference(obj);
174 mutex_unlock(&crtc->dev->struct_mutex);
179 static int radeon_crtc_cursor_move(struct drm_crtc *crtc,
182 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
183 struct drm_radeon_private *dev_priv = crtc->dev->dev_private;
184 int xorigin = 0, yorigin = 0;
186 if (x < 0) xorigin = -x+1;
187 if (y < 0) yorigin = -x+1;
188 if (xorigin >= CURSOR_WIDTH) xorigin = CURSOR_WIDTH - 1;
189 if (yorigin >= CURSOR_WIDTH) yorigin = CURSOR_WIDTH - 1;
191 if (crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
193 else if (crtc->mode.flags & DRM_MODE_FLAG_DBLSCAN)
196 if (radeon_is_avivo(dev_priv)) {
197 avivo_lock_cursor(crtc, true);
199 RADEON_WRITE(AVIVO_D1CUR_POSITION + radeon_crtc->crtc_offset,
200 ((xorigin ? 0: x) << 16) |
202 RADEON_WRITE(AVIVO_D1CUR_HOT_SPOT + radeon_crtc->crtc_offset, (xorigin << 16) | yorigin);
203 avivo_lock_cursor(crtc, false);
209 static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
210 u16 *blue, uint32_t size)
212 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
218 for (i = 0; i < 256; i++) {
219 radeon_crtc->lut_r[i] = red[i] >> 8;
220 radeon_crtc->lut_g[i] = green[i] >> 8;
221 radeon_crtc->lut_b[i] = blue[i] >> 8;
224 radeon_crtc_load_lut(crtc);
227 static void radeon_crtc_destroy(struct drm_crtc *crtc)
229 struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
231 drm_crtc_cleanup(crtc);
235 static const struct drm_crtc_funcs radeon_crtc_funcs = {
236 .cursor_set = radeon_crtc_cursor_set,
237 .cursor_move = radeon_crtc_cursor_move,
238 .gamma_set = radeon_crtc_gamma_set,
239 .set_config = drm_crtc_helper_set_config,
240 .destroy = radeon_crtc_destroy,
243 static void radeon_crtc_init(struct drm_device *dev, int index)
245 struct drm_radeon_private *dev_priv = dev->dev_private;
246 struct radeon_crtc *radeon_crtc;
249 radeon_crtc = kzalloc(sizeof(struct radeon_crtc) + (RADEONFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
250 // radeon_crtc = kzalloc(sizeof(struct radeon_crtc), GFP_KERNEL);
251 if (radeon_crtc == NULL)
254 drm_crtc_init(dev, &radeon_crtc->base, &radeon_crtc_funcs);
256 drm_mode_crtc_set_gamma_size(&radeon_crtc->base, 256);
257 radeon_crtc->crtc_id = index;
259 radeon_crtc->mode_set.crtc = &radeon_crtc->base;
260 radeon_crtc->mode_set.connectors = (struct drm_connector **)(radeon_crtc + 1);
261 radeon_crtc->mode_set.num_connectors = 0;
263 for (i = 0; i < 256; i++) {
264 radeon_crtc->lut_r[i] = i;
265 radeon_crtc->lut_g[i] = i;
266 radeon_crtc->lut_b[i] = i;
269 if (dev_priv->is_atom_bios && dev_priv->chip_family > CHIP_RS690)
270 radeon_atombios_init_crtc(dev, radeon_crtc);
272 radeon_legacy_init_crtc(dev, radeon_crtc);
275 bool radeon_legacy_setup_enc_conn(struct drm_device *dev)
278 radeon_get_legacy_connector_info_from_bios(dev);
282 bool radeon_setup_enc_conn(struct drm_device *dev)
284 struct drm_radeon_private *dev_priv = dev->dev_private;
285 struct radeon_mode_info *mode_info = &dev_priv->mode_info;
286 /* do all the mac and stuff */
287 struct drm_connector *connector;
288 struct drm_encoder *encoder;
291 if (dev_priv->is_atom_bios)
292 radeon_get_atom_connector_info_from_bios_connector_table(dev);
294 radeon_get_legacy_connector_info_from_bios(dev);
296 for (i = 0; i < RADEON_MAX_BIOS_CONNECTOR; i++) {
297 if (!mode_info->bios_connector[i].valid)
300 /* add a connector for this */
301 if (mode_info->bios_connector[i].connector_type == CONNECTOR_NONE)
304 connector = radeon_connector_add(dev, i);
309 /* if we find an LVDS connector */
310 if (mode_info->bios_connector[i].connector_type == CONNECTOR_LVDS) {
311 if (radeon_is_avivo(dev_priv))
312 encoder = radeon_encoder_lvtma_add(dev, i);
314 encoder = radeon_encoder_legacy_lvds_add(dev, i);
316 drm_mode_connector_attach_encoder(connector, encoder);
319 /* DAC on DVI or VGA */
320 if ((mode_info->bios_connector[i].connector_type == CONNECTOR_DVI_I) ||
321 (mode_info->bios_connector[i].connector_type == CONNECTOR_DVI_A) ||
322 (mode_info->bios_connector[i].connector_type == CONNECTOR_VGA)) {
323 if (radeon_is_avivo(dev_priv)) {
324 encoder = radeon_encoder_atom_dac_add(dev, i, mode_info->bios_connector[i].dac_type, 0);
326 if (mode_info->bios_connector[i].dac_type == DAC_PRIMARY)
327 encoder = radeon_encoder_legacy_primary_dac_add(dev, i, 0);
328 // else if (mode_info->bios_connector[i].dac_type == DAC_TVDAC)
329 // encoder radeon_encoder_legacy_secondary_dac_add(dev, i, 0);
332 drm_mode_connector_attach_encoder(connector, encoder);
336 if ((mode_info->bios_connector[i].connector_type == CONNECTOR_DVI_I) ||
337 (mode_info->bios_connector[i].connector_type == CONNECTOR_DVI_D)) {
338 if (radeon_is_avivo(dev_priv))
339 encoder = radeon_encoder_atom_tmds_add(dev, i, mode_info->bios_connector[i].tmds_type);
341 if (mode_info->bios_connector[i].tmds_type == TMDS_INT)
342 encoder = radeon_encoder_legacy_tmds_int_add(dev, i);
345 drm_mode_connector_attach_encoder(connector, encoder);
349 if (mode_info->bios_connector[i].connector_type == CONNECTOR_DIN) {
350 if (radeon_is_avivo(dev_priv))
351 encoder = radeon_encoder_atom_dac_add(dev, i, mode_info->bios_connector[i].dac_type, 1);
353 drm_mode_connector_attach_encoder(connector, encoder);
357 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
358 radeon_ddc_dump(connector);
364 void avivo_i2c_do_lock(struct radeon_connector *radeon_connector, int lock_state)
366 struct drm_radeon_private *dev_priv = radeon_connector->base.dev->dev_private;
368 struct radeon_i2c_bus_rec *rec = &radeon_connector->ddc_bus->rec;
370 temp = RADEON_READ(rec->mask_clk_reg);
372 temp |= rec->put_clk_mask;
374 temp &= ~rec->put_clk_mask;
375 RADEON_WRITE(rec->mask_clk_reg, temp);
376 temp = RADEON_READ(rec->mask_clk_reg);
378 temp = RADEON_READ(rec->mask_data_reg);
380 temp |= rec->put_data_mask;
382 temp &= ~rec->put_data_mask;
383 RADEON_WRITE(rec->mask_data_reg, temp);
384 temp = RADEON_READ(rec->mask_data_reg);
387 int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
389 struct drm_radeon_private *dev_priv = radeon_connector->base.dev->dev_private;
393 if (!radeon_connector->ddc_bus)
396 if (radeon_is_avivo(dev_priv))
397 avivo_i2c_do_lock(radeon_connector, 1);
398 edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter);
399 if (radeon_is_avivo(dev_priv))
400 avivo_i2c_do_lock(radeon_connector, 0);
402 drm_mode_connector_update_edid_property(&radeon_connector->base, edid);
403 ret = drm_add_edid_modes(&radeon_connector->base, edid);
410 int radeon_ddc_dump(struct drm_connector *connector)
413 struct radeon_connector *radeon_connector = to_radeon_connector(connector);
416 if (!radeon_connector->ddc_bus)
418 edid = drm_get_edid(connector, &radeon_connector->ddc_bus->adapter);
425 static inline uint32_t radeon_div(uint64_t n, uint32_t d)
427 uint64_t x, y, result;
436 void radeon_compute_pll(struct radeon_pll *pll,
438 uint32_t *dot_clock_p,
441 uint32_t *post_div_p,
444 uint32_t min_ref_div = pll->min_ref_div;
445 uint32_t max_ref_div = pll->max_ref_div;
446 uint32_t best_vco = pll->best_vco;
447 uint32_t best_post_div = 1;
448 uint32_t best_ref_div = 1;
449 uint32_t best_feedback_div = 1;
450 uint32_t best_freq = -1;
451 uint32_t best_error = 0xffffffff;
452 uint32_t best_vco_diff = 1;
455 DRM_DEBUG("PLL freq %llu\n", freq);
458 if (flags & RADEON_PLL_USE_REF_DIV)
459 min_ref_div = max_ref_div = pll->reference_div;
461 while (min_ref_div < max_ref_div-1) {
462 uint32_t mid=(min_ref_div+max_ref_div)/2;
463 uint32_t pll_in = pll->reference_freq / mid;
464 if (pll_in < pll->pll_in_min)
466 else if (pll_in > pll->pll_in_max)
473 for (post_div = pll->min_post_div; post_div <= pll->max_post_div; ++post_div) {
476 if ((flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))
479 /* legacy radeons only have a few post_divs */
480 if (flags & RADEON_PLL_LEGACY) {
481 if ((post_div == 5) ||
489 for (ref_div = min_ref_div; ref_div <= max_ref_div; ++ref_div) {
490 uint32_t feedback_div, current_freq, error, vco_diff;
491 uint32_t pll_in = pll->reference_freq / ref_div;
492 uint32_t min_feed_div = pll->min_feedback_div;
493 uint32_t max_feed_div = pll->max_feedback_div+1;
495 if (pll_in < pll->pll_in_min || pll_in > pll->pll_in_max)
498 while (min_feed_div < max_feed_div) {
500 feedback_div = (min_feed_div+max_feed_div)/2;
502 vco = radeon_div((uint64_t)pll->reference_freq * feedback_div,
505 if (vco < pll->pll_out_min) {
506 min_feed_div = feedback_div+1;
508 } else if(vco > pll->pll_out_max) {
509 max_feed_div = feedback_div;
513 current_freq = radeon_div((uint64_t)pll->reference_freq * 10000 * feedback_div,
516 error = abs(current_freq - freq);
517 vco_diff = abs(vco - best_vco);
519 if ((best_vco == 0 && error < best_error) ||
521 (error < best_error - 100 ||
522 (abs(error - best_error) < 100 && vco_diff < best_vco_diff )))) {
523 best_post_div = post_div;
524 best_ref_div = ref_div;
525 best_feedback_div = feedback_div;
526 best_freq = current_freq;
528 best_vco_diff = vco_diff;
529 } else if (current_freq == freq) {
530 if (best_freq == -1) {
531 best_post_div = post_div;
532 best_ref_div = ref_div;
533 best_feedback_div = feedback_div;
534 best_freq = current_freq;
536 best_vco_diff = vco_diff;
537 } else if ((flags & RADEON_PLL_PREFER_LOW_REF_DIV) && (ref_div < best_ref_div)) {
538 best_post_div = post_div;
539 best_ref_div = ref_div;
540 best_feedback_div = feedback_div;
541 best_freq = current_freq;
543 best_vco_diff = vco_diff;
547 if (current_freq < freq)
548 min_feed_div = feedback_div+1;
550 max_feed_div = feedback_div;
555 *dot_clock_p = best_freq / 10000;
556 *fb_div_p = best_feedback_div;
557 *ref_div_p = best_ref_div;
558 *post_div_p = best_post_div;
561 void radeon_get_clock_info(struct drm_device *dev)
563 drm_radeon_private_t *dev_priv = dev->dev_private;
564 struct radeon_pll *pll = &dev_priv->mode_info.pll;
567 if (dev_priv->is_atom_bios)
568 ret = radeon_atom_get_clock_info(dev);
570 ret = radeon_combios_get_clock_info(dev);
574 if (pll->reference_div < 2) pll->reference_div = 12;
579 if (radeon_is_avivo(dev_priv)) {
580 pll->min_post_div = 2;
581 pll->max_post_div = 0x7f;
583 pll->min_post_div = 1;
584 pll->max_post_div = 12; // 16 on crtc 0??
587 pll->min_ref_div = 2;
588 pll->max_ref_div = 0x3ff;
589 pll->min_feedback_div = 4;
590 pll->max_feedback_div = 0x7ff;
595 static void radeon_user_framebuffer_destroy(struct drm_framebuffer *fb)
597 struct radeon_framebuffer *radeon_fb = to_radeon_framebuffer(fb);
598 struct drm_device *dev = fb->dev;
601 radeonfb_remove(dev, fb);
603 drm_framebuffer_cleanup(fb);
607 static const struct drm_framebuffer_funcs radeon_fb_funcs = {
608 .destroy = radeon_user_framebuffer_destroy,
611 struct drm_framebuffer *radeon_user_framebuffer_create(struct drm_device *dev,
612 struct drm_file *filp,
613 struct drm_mode_fb_cmd *mode_cmd)
616 struct radeon_framebuffer *radeon_fb;
618 radeon_fb = kzalloc(sizeof(*radeon_fb), GFP_KERNEL);
622 drm_framebuffer_init(dev, &radeon_fb->base, &radeon_fb_funcs);
623 drm_helper_mode_fill_fb_struct(&radeon_fb->base, mode_cmd);
626 radeon_fb->obj = drm_gem_object_lookup(dev, filp,
628 if (!radeon_fb->obj) {
632 drm_gem_object_unreference(radeon_fb->obj);
634 return &radeon_fb->base;
637 static const struct drm_mode_config_funcs radeon_mode_funcs = {
638 .fb_create = radeon_user_framebuffer_create,
639 .fb_changed = radeonfb_probe,
643 int radeon_modeset_init(struct drm_device *dev)
645 drm_radeon_private_t *dev_priv = dev->dev_private;
646 static struct card_info card;
651 drm_mode_config_init(dev);
653 dev->mode_config.funcs = (void *)&radeon_mode_funcs;
655 if (radeon_is_avivo(dev_priv)) {
656 dev->mode_config.max_width = 8192;
657 dev->mode_config.max_height = 8192;
659 dev->mode_config.max_width = 4096;
660 dev->mode_config.max_height = 4096;
663 dev->mode_config.fb_base = dev_priv->fb_aper_offset;
665 /* allocate crtcs - TODO single crtc */
666 for (i = 0; i < num_crtc; i++) {
667 radeon_crtc_init(dev, i);
670 /* okay we should have all the bios connectors */
672 ret = radeon_setup_enc_conn(dev);
677 drm_helper_initial_config(dev, false);
683 int radeon_load_modeset_init(struct drm_device *dev)
686 ret = radeon_modeset_init(dev);
691 void radeon_modeset_cleanup(struct drm_device *dev)
693 drm_mode_config_cleanup(dev);