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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpu / drm / gma500 / cdv_intel_display.c
CommitLineData
6a227d5f
AC		 1/*
2 * Copyright © 2006-2011 Intel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
16 *
17 * Authors:
18 * Eric Anholt <eric@anholt.net>
19 */
20
21#include <linux/i2c.h>
22#include <linux/pm_runtime.h>
23
24#include <drm/drmP.h>
25#include "framebuffer.h"
26#include "psb_drv.h"
27#include "psb_intel_drv.h"
28#include "psb_intel_reg.h"
29#include "psb_intel_display.h"
30#include "power.h"
31#include "cdv_device.h"
32
33
34struct cdv_intel_range_t {
35 int min, max;
36};
37
38struct cdv_intel_p2_t {
39 int dot_limit;
40 int p2_slow, p2_fast;
41};
42
43struct cdv_intel_clock_t {
44 /* given values */
45 int n;
46 int m1, m2;
47 int p1, p2;
48 /* derived values */
49 int dot;
50 int vco;
51 int m;
52 int p;
53};
54
55#define INTEL_P2_NUM 2
56
57struct cdv_intel_limit_t {
58 struct cdv_intel_range_t dot, vco, n, m, m1, m2, p, p1;
59 struct cdv_intel_p2_t p2;
d6676096
ZY		 60 bool (*find_pll)(const struct cdv_intel_limit_t *, struct drm_crtc *,
61 int, int, struct cdv_intel_clock_t *);
6a227d5f
AC		 62};
63
d6676096
ZY		 64static bool cdv_intel_find_best_PLL(const struct cdv_intel_limit_t *limit,
65 struct drm_crtc *crtc, int target, int refclk,
66 struct cdv_intel_clock_t *best_clock);
220801bd
AC		 67static bool cdv_intel_find_dp_pll(const struct cdv_intel_limit_t *limit, struct drm_crtc *crtc, int target,
68 int refclk,
69 struct cdv_intel_clock_t *best_clock);
d6676096 70
6a227d5f
AC		 71#define CDV_LIMIT_SINGLE_LVDS_96 0
72#define CDV_LIMIT_SINGLE_LVDS_100 1
73#define CDV_LIMIT_DAC_HDMI_27 2
74#define CDV_LIMIT_DAC_HDMI_96 3
220801bd
AC		 75#define CDV_LIMIT_DP_27 4
76#define CDV_LIMIT_DP_100 5
6a227d5f
AC		 77
78static const struct cdv_intel_limit_t cdv_intel_limits[] = {
28bbda39 79 { /* CDV_SINGLE_LVDS_96MHz */
6a227d5f
AC		 80 .dot = {.min = 20000, .max = 115500},
81 .vco = {.min = 1800000, .max = 3600000},
82 .n = {.min = 2, .max = 6},
83 .m = {.min = 60, .max = 160},
84 .m1 = {.min = 0, .max = 0},
85 .m2 = {.min = 58, .max = 158},
86 .p = {.min = 28, .max = 140},
87 .p1 = {.min = 2, .max = 10},
88 .p2 = {.dot_limit = 200000,
89 .p2_slow = 14, .p2_fast = 14},
d6676096 90 .find_pll = cdv_intel_find_best_PLL,
6a227d5f
AC		 91 },
92 { /* CDV_SINGLE_LVDS_100MHz */
93 .dot = {.min = 20000, .max = 115500},
94 .vco = {.min = 1800000, .max = 3600000},
95 .n = {.min = 2, .max = 6},
96 .m = {.min = 60, .max = 160},
97 .m1 = {.min = 0, .max = 0},
98 .m2 = {.min = 58, .max = 158},
99 .p = {.min = 28, .max = 140},
100 .p1 = {.min = 2, .max = 10},
101 /* The single-channel range is 25-112Mhz, and dual-channel
102 * is 80-224Mhz. Prefer single channel as much as possible.
103 */
104 .p2 = {.dot_limit = 200000, .p2_slow = 14, .p2_fast = 14},
d6676096 105 .find_pll = cdv_intel_find_best_PLL,
6a227d5f
AC		 106 },
107 { /* CDV_DAC_HDMI_27MHz */
108 .dot = {.min = 20000, .max = 400000},
109 .vco = {.min = 1809000, .max = 3564000},
110 .n = {.min = 1, .max = 1},
111 .m = {.min = 67, .max = 132},
112 .m1 = {.min = 0, .max = 0},
113 .m2 = {.min = 65, .max = 130},
114 .p = {.min = 5, .max = 90},
115 .p1 = {.min = 1, .max = 9},
116 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 5},
d6676096 117 .find_pll = cdv_intel_find_best_PLL,
6a227d5f
AC		 118 },
119 { /* CDV_DAC_HDMI_96MHz */
120 .dot = {.min = 20000, .max = 400000},
121 .vco = {.min = 1800000, .max = 3600000},
122 .n = {.min = 2, .max = 6},
123 .m = {.min = 60, .max = 160},
124 .m1 = {.min = 0, .max = 0},
125 .m2 = {.min = 58, .max = 158},
126 .p = {.min = 5, .max = 100},
127 .p1 = {.min = 1, .max = 10},
128 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 5},
d6676096 129 .find_pll = cdv_intel_find_best_PLL,
6a227d5f 130 },
220801bd
AC		 131 { /* CDV_DP_27MHz */
132 .dot = {.min = 160000, .max = 272000},
133 .vco = {.min = 1809000, .max = 3564000},
134 .n = {.min = 1, .max = 1},
135 .m = {.min = 67, .max = 132},
136 .m1 = {.min = 0, .max = 0},
137 .m2 = {.min = 65, .max = 130},
138 .p = {.min = 5, .max = 90},
139 .p1 = {.min = 1, .max = 9},
140 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 10},
141 .find_pll = cdv_intel_find_dp_pll,
142 },
143 { /* CDV_DP_100MHz */
144 .dot = {.min = 160000, .max = 272000},
145 .vco = {.min = 1800000, .max = 3600000},
146 .n = {.min = 2, .max = 6},
147 .m = {.min = 60, .max = 164},
148 .m1 = {.min = 0, .max = 0},
149 .m2 = {.min = 58, .max = 162},
150 .p = {.min = 5, .max = 100},
151 .p1 = {.min = 1, .max = 10},
152 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 10},
153 .find_pll = cdv_intel_find_dp_pll,
154 }
6a227d5f
AC		 155};
156
157#define _wait_for(COND, MS, W) ({ \
158 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS); \
159 int ret__ = 0; \
160 while (!(COND)) { \
161 if (time_after(jiffies, timeout__)) { \
162 ret__ = -ETIMEDOUT; \
163 break; \
164 } \
165 if (W && !in_dbg_master()) \
166 msleep(W); \
167 } \
168 ret__; \
169})
170
171#define wait_for(COND, MS) _wait_for(COND, MS, 1)
172
173
37e7b184 174int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val)
6a227d5f
AC		 175{
176 int ret;
177
178 ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
179 if (ret) {
180 DRM_ERROR("timeout waiting for SB to idle before read\n");
181 return ret;
182 }
183
184 REG_WRITE(SB_ADDR, reg);
185 REG_WRITE(SB_PCKT,
186 SET_FIELD(SB_OPCODE_READ, SB_OPCODE) |
187 SET_FIELD(SB_DEST_DPLL, SB_DEST) |
188 SET_FIELD(0xf, SB_BYTE_ENABLE));
189
190 ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
191 if (ret) {
192 DRM_ERROR("timeout waiting for SB to idle after read\n");
193 return ret;
194 }
195
196 *val = REG_READ(SB_DATA);
197
198 return 0;
199}
200
37e7b184 201int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val)
6a227d5f
AC		 202{
203 int ret;
204 static bool dpio_debug = true;
205 u32 temp;
206
207 if (dpio_debug) {
208 if (cdv_sb_read(dev, reg, &temp) == 0)
209 DRM_DEBUG_KMS("0x%08x: 0x%08x (before)\n", reg, temp);
210 DRM_DEBUG_KMS("0x%08x: 0x%08x\n", reg, val);
211 }
212
213 ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
214 if (ret) {
215 DRM_ERROR("timeout waiting for SB to idle before write\n");
216 return ret;
217 }
218
219 REG_WRITE(SB_ADDR, reg);
220 REG_WRITE(SB_DATA, val);
221 REG_WRITE(SB_PCKT,
222 SET_FIELD(SB_OPCODE_WRITE, SB_OPCODE) |
223 SET_FIELD(SB_DEST_DPLL, SB_DEST) |
224 SET_FIELD(0xf, SB_BYTE_ENABLE));
225
226 ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
227 if (ret) {
228 DRM_ERROR("timeout waiting for SB to idle after write\n");
229 return ret;
230 }
231
232 if (dpio_debug) {
233 if (cdv_sb_read(dev, reg, &temp) == 0)
234 DRM_DEBUG_KMS("0x%08x: 0x%08x (after)\n", reg, temp);
235 }
236
237 return 0;
238}
239
240/* Reset the DPIO configuration register. The BIOS does this at every
241 * mode set.
242 */
37e7b184 243void cdv_sb_reset(struct drm_device *dev)
6a227d5f
AC		 244{
245
246 REG_WRITE(DPIO_CFG, 0);
247 REG_READ(DPIO_CFG);
248 REG_WRITE(DPIO_CFG, DPIO_MODE_SELECT_0 | DPIO_CMN_RESET_N);
249}
250
251/* Unlike most Intel display engines, on Cedarview the DPLL registers
252 * are behind this sideband bus. They must be programmed while the
253 * DPLL reference clock is on in the DPLL control register, but before
254 * the DPLL is enabled in the DPLL control register.
255 */
256static int
257cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc,
d6676096 258 struct cdv_intel_clock_t *clock, bool is_lvds, u32 ddi_select)
6a227d5f 259{
213a8434 260 struct psb_intel_crtc *psb_crtc = to_psb_intel_crtc(crtc);
6a227d5f
AC		 261 int pipe = psb_crtc->pipe;
262 u32 m, n_vco, p;
263 int ret = 0;
264 int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
acd7ef92 265 int ref_sfr = (pipe == 0) ? SB_REF_DPLLA : SB_REF_DPLLB;
6a227d5f 266 u32 ref_value;
d235e64a 267 u32 lane_reg, lane_value;
6a227d5f
AC		 268
269 cdv_sb_reset(dev);
270
d235e64a
AC		 271 REG_WRITE(dpll_reg, DPLL_SYNCLOCK_ENABLE | DPLL_VGA_MODE_DIS);
272
273 udelay(100);
6a227d5f
AC		 274
275 /* Follow the BIOS and write the REF/SFR Register. Hardcoded value */
276 ref_value = 0x68A701;
277
278 cdv_sb_write(dev, SB_REF_SFR(pipe), ref_value);
279
280 /* We don't know what the other fields of these regs are, so
281 * leave them in place.
282 */
acd7ef92
AC		 283 /*
284 * The BIT 14:13 of 0x8010/0x8030 is used to select the ref clk
285 * for the pipe A/B. Display spec 1.06 has wrong definition.
286 * Correct definition is like below:
287 *
288 * refclka mean use clock from same PLL
289 *
290 * if DPLLA sets 01 and DPLLB sets 01, they use clock from their pll
291 *
292 * if DPLLA sets 01 and DPLLB sets 02, both use clk from DPLLA
293 *
294 */
295 ret = cdv_sb_read(dev, ref_sfr, &ref_value);
296 if (ret)
297 return ret;
298 ref_value &= ~(REF_CLK_MASK);
299
300 /* use DPLL_A for pipeB on CRT/HDMI */
220801bd 301 if (pipe == 1 && !is_lvds && !(ddi_select & DP_MASK)) {
acd7ef92
AC		 302 DRM_DEBUG_KMS("use DPLLA for pipe B\n");
303 ref_value |= REF_CLK_DPLLA;
304 } else {
305 DRM_DEBUG_KMS("use their DPLL for pipe A/B\n");
306 ref_value |= REF_CLK_DPLL;
307 }
308 ret = cdv_sb_write(dev, ref_sfr, ref_value);
309 if (ret)
310 return ret;
311
6a227d5f
AC		 312 ret = cdv_sb_read(dev, SB_M(pipe), &m);
313 if (ret)
314 return ret;
315 m &= ~SB_M_DIVIDER_MASK;
316 m |= ((clock->m2) << SB_M_DIVIDER_SHIFT);
317 ret = cdv_sb_write(dev, SB_M(pipe), m);
318 if (ret)
319 return ret;
320
321 ret = cdv_sb_read(dev, SB_N_VCO(pipe), &n_vco);
322 if (ret)
323 return ret;
324
325 /* Follow the BIOS to program the N_DIVIDER REG */
326 n_vco &= 0xFFFF;
327 n_vco |= 0x107;
328 n_vco &= ~(SB_N_VCO_SEL_MASK |
329 SB_N_DIVIDER_MASK |
330 SB_N_CB_TUNE_MASK);
331
332 n_vco |= ((clock->n) << SB_N_DIVIDER_SHIFT);
333
334 if (clock->vco < 2250000) {
335 n_vco |= (2 << SB_N_CB_TUNE_SHIFT);
336 n_vco |= (0 << SB_N_VCO_SEL_SHIFT);
337 } else if (clock->vco < 2750000) {
338 n_vco |= (1 << SB_N_CB_TUNE_SHIFT);
339 n_vco |= (1 << SB_N_VCO_SEL_SHIFT);
340 } else if (clock->vco < 3300000) {
341 n_vco |= (0 << SB_N_CB_TUNE_SHIFT);
342 n_vco |= (2 << SB_N_VCO_SEL_SHIFT);
343 } else {
344 n_vco |= (0 << SB_N_CB_TUNE_SHIFT);
345 n_vco |= (3 << SB_N_VCO_SEL_SHIFT);
346 }
347
348 ret = cdv_sb_write(dev, SB_N_VCO(pipe), n_vco);
349 if (ret)
350 return ret;
351
352 ret = cdv_sb_read(dev, SB_P(pipe), &p);
353 if (ret)
354 return ret;
355 p &= ~(SB_P2_DIVIDER_MASK | SB_P1_DIVIDER_MASK);
356 p |= SET_FIELD(clock->p1, SB_P1_DIVIDER);
357 switch (clock->p2) {
358 case 5:
359 p |= SET_FIELD(SB_P2_5, SB_P2_DIVIDER);
360 break;
361 case 10:
362 p |= SET_FIELD(SB_P2_10, SB_P2_DIVIDER);
363 break;
364 case 14:
365 p |= SET_FIELD(SB_P2_14, SB_P2_DIVIDER);
366 break;
367 case 7:
368 p |= SET_FIELD(SB_P2_7, SB_P2_DIVIDER);
369 break;
370 default:
371 DRM_ERROR("Bad P2 clock: %d\n", clock->p2);
372 return -EINVAL;
373 }
374 ret = cdv_sb_write(dev, SB_P(pipe), p);
375 if (ret)
376 return ret;
377
d6676096
ZY		 378 if (ddi_select) {
379 if ((ddi_select & DDI_MASK) == DDI0_SELECT) {
380 lane_reg = PSB_LANE0;
381 cdv_sb_read(dev, lane_reg, &lane_value);
382 lane_value &= ~(LANE_PLL_MASK);
383 lane_value |= LANE_PLL_ENABLE | LANE_PLL_PIPE(pipe);
384 cdv_sb_write(dev, lane_reg, lane_value);
385
386 lane_reg = PSB_LANE1;
387 cdv_sb_read(dev, lane_reg, &lane_value);
388 lane_value &= ~(LANE_PLL_MASK);
389 lane_value |= LANE_PLL_ENABLE | LANE_PLL_PIPE(pipe);
390 cdv_sb_write(dev, lane_reg, lane_value);
391 } else {
392 lane_reg = PSB_LANE2;
393 cdv_sb_read(dev, lane_reg, &lane_value);
394 lane_value &= ~(LANE_PLL_MASK);
395 lane_value |= LANE_PLL_ENABLE | LANE_PLL_PIPE(pipe);
396 cdv_sb_write(dev, lane_reg, lane_value);
397
398 lane_reg = PSB_LANE3;
399 cdv_sb_read(dev, lane_reg, &lane_value);
400 lane_value &= ~(LANE_PLL_MASK);
401 lane_value |= LANE_PLL_ENABLE | LANE_PLL_PIPE(pipe);
402 cdv_sb_write(dev, lane_reg, lane_value);
403 }
404 }
6a227d5f
AC		 405 return 0;
406}
407
408/*
a12d6a07 409 * Returns whether any encoder on the specified pipe is of the specified type
6a227d5f 410 */
657da160 411static bool cdv_intel_pipe_has_type(struct drm_crtc *crtc, int type)
6a227d5f
AC		 412{
413 struct drm_device *dev = crtc->dev;
414 struct drm_mode_config *mode_config = &dev->mode_config;
415 struct drm_connector *l_entry;
416
417 list_for_each_entry(l_entry, &mode_config->connector_list, head) {
418 if (l_entry->encoder && l_entry->encoder->crtc == crtc) {
a12d6a07
PJ		 419 struct psb_intel_encoder *psb_intel_encoder =
420 psb_intel_attached_encoder(l_entry);
421 if (psb_intel_encoder->type == type)
6a227d5f
AC		 422 return true;
423 }
424 }
425 return false;
426}
427
428static const struct cdv_intel_limit_t *cdv_intel_limit(struct drm_crtc *crtc,
429 int refclk)
430{
431 const struct cdv_intel_limit_t *limit;
432 if (cdv_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
433 /*
434 * Now only single-channel LVDS is supported on CDV. If it is
435 * incorrect, please add the dual-channel LVDS.
436 */
437 if (refclk == 96000)
438 limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_96];
439 else
440 limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_100];
d112a816
ZY		 441 } else if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
442 psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_EDP)) {
220801bd
AC		 443 if (refclk == 27000)
444 limit = &cdv_intel_limits[CDV_LIMIT_DP_27];
445 else
446 limit = &cdv_intel_limits[CDV_LIMIT_DP_100];
6a227d5f
AC		 447 } else {
448 if (refclk == 27000)
449 limit = &cdv_intel_limits[CDV_LIMIT_DAC_HDMI_27];
450 else
451 limit = &cdv_intel_limits[CDV_LIMIT_DAC_HDMI_96];
452 }
453 return limit;
454}
455
456/* m1 is reserved as 0 in CDV, n is a ring counter */
457static void cdv_intel_clock(struct drm_device *dev,
458 int refclk, struct cdv_intel_clock_t *clock)
459{
460 clock->m = clock->m2 + 2;
461 clock->p = clock->p1 * clock->p2;
462 clock->vco = (refclk * clock->m) / clock->n;
463 clock->dot = clock->vco / clock->p;
464}
465
466
467#define INTELPllInvalid(s) { /* ErrorF (s) */; return false; }
468static bool cdv_intel_PLL_is_valid(struct drm_crtc *crtc,
469 const struct cdv_intel_limit_t *limit,
470 struct cdv_intel_clock_t *clock)
471{
472 if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
473 INTELPllInvalid("p1 out of range\n");
474 if (clock->p < limit->p.min || limit->p.max < clock->p)
475 INTELPllInvalid("p out of range\n");
476 /* unnecessary to check the range of m(m1/M2)/n again */
477 if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
478 INTELPllInvalid("vco out of range\n");
479 /* XXX: We may need to be checking "Dot clock"
480 * depending on the multiplier, connector, etc.,
481 * rather than just a single range.
482 */
483 if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
484 INTELPllInvalid("dot out of range\n");
485
486 return true;
487}
488
d6676096
ZY		 489static bool cdv_intel_find_best_PLL(const struct cdv_intel_limit_t *limit,
490 struct drm_crtc *crtc, int target, int refclk,
491 struct cdv_intel_clock_t *best_clock)
6a227d5f
AC		 492{
493 struct drm_device *dev = crtc->dev;
494 struct cdv_intel_clock_t clock;
6a227d5f
AC		 495 int err = target;
496
497
498 if (cdv_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
499 (REG_READ(LVDS) & LVDS_PORT_EN) != 0) {
500 /*
501 * For LVDS, if the panel is on, just rely on its current
502 * settings for dual-channel. We haven't figured out how to
503 * reliably set up different single/dual channel state, if we
504 * even can.
505 */
506 if ((REG_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
507 LVDS_CLKB_POWER_UP)
508 clock.p2 = limit->p2.p2_fast;
509 else
510 clock.p2 = limit->p2.p2_slow;
511 } else {
512 if (target < limit->p2.dot_limit)
513 clock.p2 = limit->p2.p2_slow;
514 else
515 clock.p2 = limit->p2.p2_fast;
516 }
517
518 memset(best_clock, 0, sizeof(*best_clock));
519 clock.m1 = 0;
520 /* m1 is reserved as 0 in CDV, n is a ring counter.
521 So skip the m1 loop */
522 for (clock.n = limit->n.min; clock.n <= limit->n.max; clock.n++) {
523 for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max;
524 clock.m2++) {
525 for (clock.p1 = limit->p1.min;
526 clock.p1 <= limit->p1.max;
527 clock.p1++) {
528 int this_err;
529
530 cdv_intel_clock(dev, refclk, &clock);
531
532 if (!cdv_intel_PLL_is_valid(crtc,
533 limit, &clock))
534 continue;
535
536 this_err = abs(clock.dot - target);
537 if (this_err < err) {
538 *best_clock = clock;
539 err = this_err;
540 }
541 }
542 }
543 }
544
545 return err != target;
546}
547
220801bd
AC		 548static bool cdv_intel_find_dp_pll(const struct cdv_intel_limit_t *limit, struct drm_crtc *crtc, int target,
549 int refclk,
550 struct cdv_intel_clock_t *best_clock)
551{
552 struct cdv_intel_clock_t clock;
553 if (refclk == 27000) {
554 if (target < 200000) {
555 clock.p1 = 2;
556 clock.p2 = 10;
557 clock.n = 1;
558 clock.m1 = 0;
559 clock.m2 = 118;
560 } else {
561 clock.p1 = 1;
562 clock.p2 = 10;
563 clock.n = 1;
564 clock.m1 = 0;
565 clock.m2 = 98;
566 }
567 } else if (refclk == 100000) {
568 if (target < 200000) {
569 clock.p1 = 2;
570 clock.p2 = 10;
571 clock.n = 5;
572 clock.m1 = 0;
573 clock.m2 = 160;
574 } else {
575 clock.p1 = 1;
576 clock.p2 = 10;
577 clock.n = 5;
578 clock.m1 = 0;
579 clock.m2 = 133;
580 }
581 } else
582 return false;
583 clock.m = clock.m2 + 2;
584 clock.p = clock.p1 * clock.p2;
585 clock.vco = (refclk * clock.m) / clock.n;
586 clock.dot = clock.vco / clock.p;
587 memcpy(best_clock, &clock, sizeof(struct cdv_intel_clock_t));
588 return true;
589}
590
657da160 591static int cdv_intel_pipe_set_base(struct drm_crtc *crtc,
6a227d5f
AC		 592 int x, int y, struct drm_framebuffer *old_fb)
593{
594 struct drm_device *dev = crtc->dev;
213a8434 595 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 596 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
597 struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
598 int pipe = psb_intel_crtc->pipe;
213a8434 599 const struct psb_offset *map = &dev_priv->regmap[pipe];
6a227d5f 600 unsigned long start, offset;
6a227d5f
AC		 601 u32 dspcntr;
602 int ret = 0;
603
604 if (!gma_power_begin(dev, true))
605 return 0;
606
607 /* no fb bound */
608 if (!crtc->fb) {
609 dev_err(dev->dev, "No FB bound\n");
610 goto psb_intel_pipe_cleaner;
611 }
612
613
614 /* We are displaying this buffer, make sure it is actually loaded
615 into the GTT */
616 ret = psb_gtt_pin(psbfb->gtt);
617 if (ret < 0)
618 goto psb_intel_pipe_set_base_exit;
619 start = psbfb->gtt->offset;
01f2c773 620 offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
6a227d5f 621
213a8434 622 REG_WRITE(map->stride, crtc->fb->pitches[0]);
6a227d5f 623
213a8434 624 dspcntr = REG_READ(map->cntr);
6a227d5f
AC		 625 dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
626
627 switch (crtc->fb->bits_per_pixel) {
628 case 8:
629 dspcntr |= DISPPLANE_8BPP;
630 break;
631 case 16:
632 if (crtc->fb->depth == 15)
633 dspcntr |= DISPPLANE_15_16BPP;
634 else
635 dspcntr |= DISPPLANE_16BPP;
636 break;
637 case 24:
638 case 32:
639 dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
640 break;
641 default:
642 dev_err(dev->dev, "Unknown color depth\n");
643 ret = -EINVAL;
644 goto psb_intel_pipe_set_base_exit;
645 }
213a8434 646 REG_WRITE(map->cntr, dspcntr);
6a227d5f
AC		 647
648 dev_dbg(dev->dev,
649 "Writing base %08lX %08lX %d %d\n", start, offset, x, y);
650
213a8434
AC		 651 REG_WRITE(map->base, offset);
652 REG_READ(map->base);
653 REG_WRITE(map->surf, start);
654 REG_READ(map->surf);
6a227d5f
AC		 655
656psb_intel_pipe_cleaner:
657 /* If there was a previous display we can now unpin it */
658 if (old_fb)
659 psb_gtt_unpin(to_psb_fb(old_fb)->gtt);
660
661psb_intel_pipe_set_base_exit:
662 gma_power_end(dev);
663 return ret;
664}
665
acd7ef92
AC		 666#define FIFO_PIPEA (1 << 0)
667#define FIFO_PIPEB (1 << 1)
668
669static bool cdv_intel_pipe_enabled(struct drm_device *dev, int pipe)
670{
671 struct drm_crtc *crtc;
672 struct drm_psb_private *dev_priv = dev->dev_private;
673 struct psb_intel_crtc *psb_intel_crtc = NULL;
674
675 crtc = dev_priv->pipe_to_crtc_mapping[pipe];
676 psb_intel_crtc = to_psb_intel_crtc(crtc);
677
678 if (crtc->fb == NULL || !psb_intel_crtc->active)
679 return false;
680 return true;
681}
682
683static bool cdv_intel_single_pipe_active (struct drm_device *dev)
684{
685 uint32_t pipe_enabled = 0;
686
687 if (cdv_intel_pipe_enabled(dev, 0))
688 pipe_enabled |= FIFO_PIPEA;
689
690 if (cdv_intel_pipe_enabled(dev, 1))
691 pipe_enabled |= FIFO_PIPEB;
692
693
694 DRM_DEBUG_KMS("pipe enabled %x\n", pipe_enabled);
695
696 if (pipe_enabled == FIFO_PIPEA || pipe_enabled == FIFO_PIPEB)
697 return true;
698 else
699 return false;
700}
701
702static bool is_pipeb_lvds(struct drm_device *dev, struct drm_crtc *crtc)
703{
704 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
705 struct drm_mode_config *mode_config = &dev->mode_config;
706 struct drm_connector *connector;
707
708 if (psb_intel_crtc->pipe != 1)
709 return false;
710
711 list_for_each_entry(connector, &mode_config->connector_list, head) {
712 struct psb_intel_encoder *psb_intel_encoder =
713 psb_intel_attached_encoder(connector);
714
715 if (!connector->encoder
716 || connector->encoder->crtc != crtc)
717 continue;
718
719 if (psb_intel_encoder->type == INTEL_OUTPUT_LVDS)
720 return true;
721 }
722
723 return false;
724}
725
726static void cdv_intel_disable_self_refresh (struct drm_device *dev)
727{
728 if (REG_READ(FW_BLC_SELF) & FW_BLC_SELF_EN) {
729
730 /* Disable self-refresh before adjust WM */
731 REG_WRITE(FW_BLC_SELF, (REG_READ(FW_BLC_SELF) & ~FW_BLC_SELF_EN));
732 REG_READ(FW_BLC_SELF);
733
734 cdv_intel_wait_for_vblank(dev);
735
736 /* Cedarview workaround to write ovelay plane, which force to leave
737 * MAX_FIFO state.
738 */
739 REG_WRITE(OV_OVADD, 0/*dev_priv->ovl_offset*/);
740 REG_READ(OV_OVADD);
741
742 cdv_intel_wait_for_vblank(dev);
743 }
744
745}
746
747static void cdv_intel_update_watermark (struct drm_device *dev, struct drm_crtc *crtc)
748{
749
750 if (cdv_intel_single_pipe_active(dev)) {
751 u32 fw;
752
753 fw = REG_READ(DSPFW1);
754 fw &= ~DSP_FIFO_SR_WM_MASK;
755 fw |= (0x7e << DSP_FIFO_SR_WM_SHIFT);
756 fw &= ~CURSOR_B_FIFO_WM_MASK;
757 fw |= (0x4 << CURSOR_B_FIFO_WM_SHIFT);
758 REG_WRITE(DSPFW1, fw);
759
760 fw = REG_READ(DSPFW2);
761 fw &= ~CURSOR_A_FIFO_WM_MASK;
762 fw |= (0x6 << CURSOR_A_FIFO_WM_SHIFT);
763 fw &= ~DSP_PLANE_C_FIFO_WM_MASK;
764 fw |= (0x8 << DSP_PLANE_C_FIFO_WM_SHIFT);
765 REG_WRITE(DSPFW2, fw);
766
767 REG_WRITE(DSPFW3, 0x36000000);
768
769 /* ignore FW4 */
770
771 if (is_pipeb_lvds(dev, crtc)) {
772 REG_WRITE(DSPFW5, 0x00040330);
773 } else {
774 fw = (3 << DSP_PLANE_B_FIFO_WM1_SHIFT) |
775 (4 << DSP_PLANE_A_FIFO_WM1_SHIFT) |
776 (3 << CURSOR_B_FIFO_WM1_SHIFT) |
777 (4 << CURSOR_FIFO_SR_WM1_SHIFT);
778 REG_WRITE(DSPFW5, fw);
779 }
780
781 REG_WRITE(DSPFW6, 0x10);
782
783 cdv_intel_wait_for_vblank(dev);
784
785 /* enable self-refresh for single pipe active */
786 REG_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
787 REG_READ(FW_BLC_SELF);
788 cdv_intel_wait_for_vblank(dev);
789
790 } else {
791
792 /* HW team suggested values... */
793 REG_WRITE(DSPFW1, 0x3f880808);
794 REG_WRITE(DSPFW2, 0x0b020202);
795 REG_WRITE(DSPFW3, 0x24000000);
796 REG_WRITE(DSPFW4, 0x08030202);
797 REG_WRITE(DSPFW5, 0x01010101);
798 REG_WRITE(DSPFW6, 0x1d0);
799
800 cdv_intel_wait_for_vblank(dev);
801
802 cdv_intel_disable_self_refresh(dev);
803
804 }
805}
806
807/** Loads the palette/gamma unit for the CRTC with the prepared values */
808static void cdv_intel_crtc_load_lut(struct drm_crtc *crtc)
809{
810 struct drm_device *dev = crtc->dev;
213a8434 811 struct drm_psb_private *dev_priv = dev->dev_private;
acd7ef92
AC		 812 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
813 int palreg = PALETTE_A;
814 int i;
815
816 /* The clocks have to be on to load the palette. */
817 if (!crtc->enabled)
818 return;
819
820 switch (psb_intel_crtc->pipe) {
821 case 0:
822 break;
823 case 1:
824 palreg = PALETTE_B;
825 break;
826 case 2:
827 palreg = PALETTE_C;
828 break;
829 default:
830 dev_err(dev->dev, "Illegal Pipe Number.\n");
831 return;
832 }
833
834 if (gma_power_begin(dev, false)) {
835 for (i = 0; i < 256; i++) {
836 REG_WRITE(palreg + 4 * i,
837 ((psb_intel_crtc->lut_r[i] +
838 psb_intel_crtc->lut_adj[i]) << 16) |
839 ((psb_intel_crtc->lut_g[i] +
840 psb_intel_crtc->lut_adj[i]) << 8) |
841 (psb_intel_crtc->lut_b[i] +
842 psb_intel_crtc->lut_adj[i]));
843 }
844 gma_power_end(dev);
845 } else {
846 for (i = 0; i < 256; i++) {
6256304b 847 dev_priv->regs.pipe[0].palette[i] =
acd7ef92
AC		 848 ((psb_intel_crtc->lut_r[i] +
849 psb_intel_crtc->lut_adj[i]) << 16) |
850 ((psb_intel_crtc->lut_g[i] +
851 psb_intel_crtc->lut_adj[i]) << 8) |
852 (psb_intel_crtc->lut_b[i] +
853 psb_intel_crtc->lut_adj[i]);
854 }
855
856 }
857}
858
6a227d5f
AC		 859/**
860 * Sets the power management mode of the pipe and plane.
861 *
862 * This code should probably grow support for turning the cursor off and back
863 * on appropriately at the same time as we're turning the pipe off/on.
864 */
865static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode)
866{
867 struct drm_device *dev = crtc->dev;
213a8434 868 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 869 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
870 int pipe = psb_intel_crtc->pipe;
213a8434 871 const struct psb_offset *map = &dev_priv->regmap[pipe];
6a227d5f 872 u32 temp;
6a227d5f
AC		 873
874 /* XXX: When our outputs are all unaware of DPMS modes other than off
875 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
876 */
acd7ef92
AC		 877 cdv_intel_disable_self_refresh(dev);
878
6a227d5f
AC		 879 switch (mode) {
880 case DRM_MODE_DPMS_ON:
881 case DRM_MODE_DPMS_STANDBY:
882 case DRM_MODE_DPMS_SUSPEND:
acd7ef92 883 if (psb_intel_crtc->active)
25e9dc69 884 break;
acd7ef92
AC		 885
886 psb_intel_crtc->active = true;
887
6a227d5f 888 /* Enable the DPLL */
213a8434 889 temp = REG_READ(map->dpll);
6a227d5f 890 if ((temp & DPLL_VCO_ENABLE) == 0) {
213a8434
AC		 891 REG_WRITE(map->dpll, temp);
892 REG_READ(map->dpll);
6a227d5f
AC		 893 /* Wait for the clocks to stabilize. */
894 udelay(150);
213a8434
AC		 895 REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE);
896 REG_READ(map->dpll);
6a227d5f
AC		 897 /* Wait for the clocks to stabilize. */
898 udelay(150);
213a8434
AC		 899 REG_WRITE(map->dpll, temp | DPLL_VCO_ENABLE);
900 REG_READ(map->dpll);
6a227d5f
AC		 901 /* Wait for the clocks to stabilize. */
902 udelay(150);
903 }
904
905 /* Jim Bish - switch plan and pipe per scott */
906 /* Enable the plane */
213a8434 907 temp = REG_READ(map->cntr);
6a227d5f 908 if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
213a8434 909 REG_WRITE(map->cntr,
6a227d5f
AC		 910 temp | DISPLAY_PLANE_ENABLE);
911 /* Flush the plane changes */
213a8434 912 REG_WRITE(map->base, REG_READ(map->base));
6a227d5f
AC		 913 }
914
915 udelay(150);
916
917 /* Enable the pipe */
213a8434 918 temp = REG_READ(map->conf);
6a227d5f 919 if ((temp & PIPEACONF_ENABLE) == 0)
213a8434 920 REG_WRITE(map->conf, temp | PIPEACONF_ENABLE);
6a227d5f 921
213a8434 922 temp = REG_READ(map->status);
acd7ef92
AC		 923 temp &= ~(0xFFFF);
924 temp |= PIPE_FIFO_UNDERRUN;
213a8434
AC		 925 REG_WRITE(map->status, temp);
926 REG_READ(map->status);
acd7ef92 927
acd7ef92 928 cdv_intel_crtc_load_lut(crtc);
6a227d5f
AC		 929
930 /* Give the overlay scaler a chance to enable
931 * if it's on this pipe */
932 /* psb_intel_crtc_dpms_video(crtc, true); TODO */
933 break;
934 case DRM_MODE_DPMS_OFF:
acd7ef92 935 if (!psb_intel_crtc->active)
25e9dc69 936 break;
acd7ef92
AC		 937
938 psb_intel_crtc->active = false;
939
6a227d5f
AC		 940 /* Give the overlay scaler a chance to disable
941 * if it's on this pipe */
942 /* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
943
944 /* Disable the VGA plane that we never use */
945 REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
946
947 /* Jim Bish - changed pipe/plane here as well. */
948
acd7ef92 949 drm_vblank_off(dev, pipe);
6a227d5f
AC		 950 /* Wait for vblank for the disable to take effect */
951 cdv_intel_wait_for_vblank(dev);
952
953 /* Next, disable display pipes */
213a8434 954 temp = REG_READ(map->conf);
6a227d5f 955 if ((temp & PIPEACONF_ENABLE) != 0) {
213a8434
AC		 956 REG_WRITE(map->conf, temp & ~PIPEACONF_ENABLE);
957 REG_READ(map->conf);
6a227d5f
AC		 958 }
959
960 /* Wait for vblank for the disable to take effect. */
961 cdv_intel_wait_for_vblank(dev);
962
963 udelay(150);
964
965 /* Disable display plane */
213a8434 966 temp = REG_READ(map->cntr);
6a227d5f 967 if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
213a8434 968 REG_WRITE(map->cntr,
6a227d5f
AC		 969 temp & ~DISPLAY_PLANE_ENABLE);
970 /* Flush the plane changes */
213a8434
AC		 971 REG_WRITE(map->base, REG_READ(map->base));
972 REG_READ(map->base);
6a227d5f
AC		 973 }
974
213a8434 975 temp = REG_READ(map->dpll);
6a227d5f 976 if ((temp & DPLL_VCO_ENABLE) != 0) {
213a8434
AC		 977 REG_WRITE(map->dpll, temp & ~DPLL_VCO_ENABLE);
978 REG_READ(map->dpll);
6a227d5f
AC		 979 }
980
981 /* Wait for the clocks to turn off. */
982 udelay(150);
983 break;
984 }
25e9dc69 985 cdv_intel_update_watermark(dev, crtc);
6a227d5f
AC		 986 /*Set FIFO Watermarks*/
987 REG_WRITE(DSPARB, 0x3F3E);
988}
989
990static void cdv_intel_crtc_prepare(struct drm_crtc *crtc)
991{
992 struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
993 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
994}
995
996static void cdv_intel_crtc_commit(struct drm_crtc *crtc)
997{
998 struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
999 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
1000}
1001
6a227d5f 1002static bool cdv_intel_crtc_mode_fixup(struct drm_crtc *crtc,
e811f5ae 1003 const struct drm_display_mode *mode,
6a227d5f
AC		 1004 struct drm_display_mode *adjusted_mode)
1005{
1006 return true;
1007}
1008
1009
1010/**
1011 * Return the pipe currently connected to the panel fitter,
1012 * or -1 if the panel fitter is not present or not in use
1013 */
1014static int cdv_intel_panel_fitter_pipe(struct drm_device *dev)
1015{
1016 u32 pfit_control;
1017
1018 pfit_control = REG_READ(PFIT_CONTROL);
1019
1020 /* See if the panel fitter is in use */
1021 if ((pfit_control & PFIT_ENABLE) == 0)
1022 return -1;
1023 return (pfit_control >> 29) & 0x3;
1024}
1025
1026static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
1027 struct drm_display_mode *mode,
1028 struct drm_display_mode *adjusted_mode,
1029 int x, int y,
1030 struct drm_framebuffer *old_fb)
1031{
1032 struct drm_device *dev = crtc->dev;
acd7ef92 1033 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 1034 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1035 int pipe = psb_intel_crtc->pipe;
213a8434 1036 const struct psb_offset *map = &dev_priv->regmap[pipe];
6a227d5f
AC		 1037 int refclk;
1038 struct cdv_intel_clock_t clock;
1039 u32 dpll = 0, dspcntr, pipeconf;
0313c0de 1040 bool ok;
6a227d5f 1041 bool is_crt = false, is_lvds = false, is_tv = false;
220801bd 1042 bool is_hdmi = false, is_dp = false;
6a227d5f
AC		 1043 struct drm_mode_config *mode_config = &dev->mode_config;
1044 struct drm_connector *connector;
d6676096
ZY		 1045 const struct cdv_intel_limit_t *limit;
1046 u32 ddi_select = 0;
d112a816 1047 bool is_edp = false;
6a227d5f
AC		 1048
1049 list_for_each_entry(connector, &mode_config->connector_list, head) {
a12d6a07
PJ		 1050 struct psb_intel_encoder *psb_intel_encoder =
1051 psb_intel_attached_encoder(connector);
6a227d5f
AC		 1052
1053 if (!connector->encoder
1054 || connector->encoder->crtc != crtc)
1055 continue;
1056
d6676096 1057 ddi_select = psb_intel_encoder->ddi_select;
a12d6a07 1058 switch (psb_intel_encoder->type) {
6a227d5f
AC		 1059 case INTEL_OUTPUT_LVDS:
1060 is_lvds = true;
1061 break;
6a227d5f
AC		 1062 case INTEL_OUTPUT_TVOUT:
1063 is_tv = true;
1064 break;
1065 case INTEL_OUTPUT_ANALOG:
1066 is_crt = true;
1067 break;
1068 case INTEL_OUTPUT_HDMI:
1069 is_hdmi = true;
1070 break;
220801bd
AC		 1071 case INTEL_OUTPUT_DISPLAYPORT:
1072 is_dp = true;
1073 break;
d112a816
ZY		 1074 case INTEL_OUTPUT_EDP:
1075 is_edp = true;
1076 break;
d6676096
ZY		 1077 default:
1078 DRM_ERROR("invalid output type.\n");
1079 return 0;
6a227d5f
AC		 1080 }
1081 }
1082
acd7ef92
AC		 1083 if (dev_priv->dplla_96mhz)
1084 /* low-end sku, 96/100 mhz */
1085 refclk = 96000;
1086 else
1087 /* high-end sku, 27/100 mhz */
6a227d5f 1088 refclk = 27000;
d112a816
ZY		 1089 if (is_dp || is_edp) {
1090 /*
1091 * Based on the spec the low-end SKU has only CRT/LVDS. So it is
1092 * unnecessary to consider it for DP/eDP.
1093 * On the high-end SKU, it will use the 27/100M reference clk
1094 * for DP/eDP. When using SSC clock, the ref clk is 100MHz.Otherwise
1095 * it will be 27MHz. From the VBIOS code it seems that the pipe A choose
1096 * 27MHz for DP/eDP while the Pipe B chooses the 100MHz.
1097 */
220801bd
AC		 1098 if (pipe == 0)
1099 refclk = 27000;
1100 else
1101 refclk = 100000;
1102 }
6a227d5f 1103
acd7ef92
AC		 1104 if (is_lvds && dev_priv->lvds_use_ssc) {
1105 refclk = dev_priv->lvds_ssc_freq * 1000;
1106 DRM_DEBUG_KMS("Use SSC reference clock %d Mhz\n", dev_priv->lvds_ssc_freq);
1107 }
1108
6a227d5f 1109 drm_mode_debug_printmodeline(adjusted_mode);
d6676096
ZY		 1110
1111 limit = cdv_intel_limit(crtc, refclk);
6a227d5f 1112
d6676096 1113 ok = limit->find_pll(limit, crtc, adjusted_mode->clock, refclk,
6a227d5f
AC		 1114 &clock);
1115 if (!ok) {
1116 dev_err(dev->dev, "Couldn't find PLL settings for mode!\n");
1117 return 0;
1118 }
1119
1120 dpll = DPLL_VGA_MODE_DIS;
1121 if (is_tv) {
1122 /* XXX: just matching BIOS for now */
1123/* dpll |= PLL_REF_INPUT_TVCLKINBC; */
1124 dpll |= 3;
1125 }
acd7ef92 1126/* dpll |= PLL_REF_INPUT_DREFCLK; */
6a227d5f 1127
f76c0dde
AC		 1128 if (is_dp || is_edp) {
1129 cdv_intel_dp_set_m_n(crtc, mode, adjusted_mode);
220801bd
AC		 1130 } else {
1131 REG_WRITE(PIPE_GMCH_DATA_M(pipe), 0);
1132 REG_WRITE(PIPE_GMCH_DATA_N(pipe), 0);
1133 REG_WRITE(PIPE_DP_LINK_M(pipe), 0);
1134 REG_WRITE(PIPE_DP_LINK_N(pipe), 0);
1135 }
1136
6a227d5f 1137 dpll |= DPLL_SYNCLOCK_ENABLE;
acd7ef92 1138/* if (is_lvds)
6a227d5f
AC		 1139 dpll |= DPLLB_MODE_LVDS;
1140 else
acd7ef92 1141 dpll |= DPLLB_MODE_DAC_SERIAL; */
6a227d5f
AC		 1142 /* dpll |= (2 << 11); */
1143
1144 /* setup pipeconf */
213a8434 1145 pipeconf = REG_READ(map->conf);
6a227d5f 1146
d112a816
ZY		 1147 pipeconf &= ~(PIPE_BPC_MASK);
1148 if (is_edp) {
1149 switch (dev_priv->edp.bpp) {
1150 case 24:
1151 pipeconf |= PIPE_8BPC;
1152 break;
1153 case 18:
1154 pipeconf |= PIPE_6BPC;
1155 break;
1156 case 30:
1157 pipeconf |= PIPE_10BPC;
1158 break;
1159 default:
1160 pipeconf |= PIPE_8BPC;
1161 break;
1162 }
1163 } else if (is_lvds) {
1164 /* the BPC will be 6 if it is 18-bit LVDS panel */
1165 if ((REG_READ(LVDS) & LVDS_A3_POWER_MASK) == LVDS_A3_POWER_UP)
1166 pipeconf |= PIPE_8BPC;
1167 else
1168 pipeconf |= PIPE_6BPC;
1169 } else
1170 pipeconf |= PIPE_8BPC;
1171
6a227d5f
AC		 1172 /* Set up the display plane register */
1173 dspcntr = DISPPLANE_GAMMA_ENABLE;
1174
1175 if (pipe == 0)
1176 dspcntr |= DISPPLANE_SEL_PIPE_A;
1177 else
1178 dspcntr |= DISPPLANE_SEL_PIPE_B;
1179
1180 dspcntr |= DISPLAY_PLANE_ENABLE;
1181 pipeconf |= PIPEACONF_ENABLE;
1182
213a8434
AC		 1183 REG_WRITE(map->dpll, dpll | DPLL_VGA_MODE_DIS | DPLL_SYNCLOCK_ENABLE);
1184 REG_READ(map->dpll);
6a227d5f 1185
d6676096 1186 cdv_dpll_set_clock_cdv(dev, crtc, &clock, is_lvds, ddi_select);
6a227d5f
AC		 1187
1188 udelay(150);
1189
1190
1191 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
1192 * This is an exception to the general rule that mode_set doesn't turn
1193 * things on.
1194 */
1195 if (is_lvds) {
1196 u32 lvds = REG_READ(LVDS);
1197
1198 lvds |=
1199 LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP |
1200 LVDS_PIPEB_SELECT;
1201 /* Set the B0-B3 data pairs corresponding to
1202 * whether we're going to
1203 * set the DPLLs for dual-channel mode or not.
1204 */
1205 if (clock.p2 == 7)
1206 lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
1207 else
1208 lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
1209
1210 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
1211 * appropriately here, but we need to look more
1212 * thoroughly into how panels behave in the two modes.
1213 */
1214
1215 REG_WRITE(LVDS, lvds);
1216 REG_READ(LVDS);
1217 }
1218
1219 dpll |= DPLL_VCO_ENABLE;
1220
1221 /* Disable the panel fitter if it was on our pipe */
1222 if (cdv_intel_panel_fitter_pipe(dev) == pipe)
1223 REG_WRITE(PFIT_CONTROL, 0);
1224
1225 DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
1226 drm_mode_debug_printmodeline(mode);
1227
213a8434
AC		 1228 REG_WRITE(map->dpll,
1229 (REG_READ(map->dpll) & ~DPLL_LOCK) | DPLL_VCO_ENABLE);
1230 REG_READ(map->dpll);
6a227d5f
AC		 1231 /* Wait for the clocks to stabilize. */
1232 udelay(150); /* 42 usec w/o calibration, 110 with. rounded up. */
1233
213a8434 1234 if (!(REG_READ(map->dpll) & DPLL_LOCK)) {
6a227d5f
AC		 1235 dev_err(dev->dev, "Failed to get DPLL lock\n");
1236 return -EBUSY;
1237 }
1238
1239 {
1240 int sdvo_pixel_multiply = adjusted_mode->clock / mode->clock;
213a8434 1241 REG_WRITE(map->dpll_md, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT));
6a227d5f
AC		 1242 }
1243
213a8434 1244 REG_WRITE(map->htotal, (adjusted_mode->crtc_hdisplay - 1) |
6a227d5f 1245 ((adjusted_mode->crtc_htotal - 1) << 16));
213a8434 1246 REG_WRITE(map->hblank, (adjusted_mode->crtc_hblank_start - 1) |
6a227d5f 1247 ((adjusted_mode->crtc_hblank_end - 1) << 16));
213a8434 1248 REG_WRITE(map->hsync, (adjusted_mode->crtc_hsync_start - 1) |
6a227d5f 1249 ((adjusted_mode->crtc_hsync_end - 1) << 16));
213a8434 1250 REG_WRITE(map->vtotal, (adjusted_mode->crtc_vdisplay - 1) |
6a227d5f 1251 ((adjusted_mode->crtc_vtotal - 1) << 16));
213a8434 1252 REG_WRITE(map->vblank, (adjusted_mode->crtc_vblank_start - 1) |
6a227d5f 1253 ((adjusted_mode->crtc_vblank_end - 1) << 16));
213a8434 1254 REG_WRITE(map->vsync, (adjusted_mode->crtc_vsync_start - 1) |
6a227d5f
AC		 1255 ((adjusted_mode->crtc_vsync_end - 1) << 16));
1256 /* pipesrc and dspsize control the size that is scaled from,
1257 * which should always be the user's requested size.
1258 */
213a8434 1259 REG_WRITE(map->size,
6a227d5f 1260 ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
213a8434
AC		 1261 REG_WRITE(map->pos, 0);
1262 REG_WRITE(map->src,
6a227d5f 1263 ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
213a8434
AC		 1264 REG_WRITE(map->conf, pipeconf);
1265 REG_READ(map->conf);
6a227d5f
AC		 1266
1267 cdv_intel_wait_for_vblank(dev);
1268
213a8434 1269 REG_WRITE(map->cntr, dspcntr);
6a227d5f
AC		 1270
1271 /* Flush the plane changes */
1272 {
1273 struct drm_crtc_helper_funcs *crtc_funcs =
1274 crtc->helper_private;
1275 crtc_funcs->mode_set_base(crtc, x, y, old_fb);
1276 }
1277
1278 cdv_intel_wait_for_vblank(dev);
1279
1280 return 0;
1281}
1282
6a227d5f
AC		 1283
1284/**
1285 * Save HW states of giving crtc
1286 */
1287static void cdv_intel_crtc_save(struct drm_crtc *crtc)
1288{
1289 struct drm_device *dev = crtc->dev;
213a8434 1290 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 1291 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1292 struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
213a8434 1293 const struct psb_offset *map = &dev_priv->regmap[psb_intel_crtc->pipe];
6a227d5f
AC		 1294 uint32_t paletteReg;
1295 int i;
1296
1297 if (!crtc_state) {
1298 dev_dbg(dev->dev, "No CRTC state found\n");
1299 return;
1300 }
1301
213a8434
AC		 1302 crtc_state->saveDSPCNTR = REG_READ(map->cntr);
1303 crtc_state->savePIPECONF = REG_READ(map->conf);
1304 crtc_state->savePIPESRC = REG_READ(map->src);
1305 crtc_state->saveFP0 = REG_READ(map->fp0);
1306 crtc_state->saveFP1 = REG_READ(map->fp1);
1307 crtc_state->saveDPLL = REG_READ(map->dpll);
1308 crtc_state->saveHTOTAL = REG_READ(map->htotal);
1309 crtc_state->saveHBLANK = REG_READ(map->hblank);
1310 crtc_state->saveHSYNC = REG_READ(map->hsync);
1311 crtc_state->saveVTOTAL = REG_READ(map->vtotal);
1312 crtc_state->saveVBLANK = REG_READ(map->vblank);
1313 crtc_state->saveVSYNC = REG_READ(map->vsync);
1314 crtc_state->saveDSPSTRIDE = REG_READ(map->stride);
6a227d5f
AC		 1315
1316 /*NOTE: DSPSIZE DSPPOS only for psb*/
213a8434
AC		 1317 crtc_state->saveDSPSIZE = REG_READ(map->size);
1318 crtc_state->saveDSPPOS = REG_READ(map->pos);
6a227d5f 1319
213a8434 1320 crtc_state->saveDSPBASE = REG_READ(map->base);
6a227d5f
AC		 1321
1322 DRM_DEBUG("(%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
1323 crtc_state->saveDSPCNTR,
1324 crtc_state->savePIPECONF,
1325 crtc_state->savePIPESRC,
1326 crtc_state->saveFP0,
1327 crtc_state->saveFP1,
1328 crtc_state->saveDPLL,
1329 crtc_state->saveHTOTAL,
1330 crtc_state->saveHBLANK,
1331 crtc_state->saveHSYNC,
1332 crtc_state->saveVTOTAL,
1333 crtc_state->saveVBLANK,
1334 crtc_state->saveVSYNC,
1335 crtc_state->saveDSPSTRIDE,
1336 crtc_state->saveDSPSIZE,
1337 crtc_state->saveDSPPOS,
1338 crtc_state->saveDSPBASE
1339 );
1340
213a8434 1341 paletteReg = map->palette;
6a227d5f
AC		 1342 for (i = 0; i < 256; ++i)
1343 crtc_state->savePalette[i] = REG_READ(paletteReg + (i << 2));
1344}
1345
1346/**
1347 * Restore HW states of giving crtc
1348 */
1349static void cdv_intel_crtc_restore(struct drm_crtc *crtc)
1350{
1351 struct drm_device *dev = crtc->dev;
213a8434 1352 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 1353 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1354 struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
213a8434 1355 const struct psb_offset *map = &dev_priv->regmap[psb_intel_crtc->pipe];
6a227d5f
AC		 1356 uint32_t paletteReg;
1357 int i;
1358
1359 if (!crtc_state) {
1360 dev_dbg(dev->dev, "No crtc state\n");
1361 return;
1362 }
1363
1364 DRM_DEBUG(
1365 "current:(%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
213a8434
AC		 1366 REG_READ(map->cntr),
1367 REG_READ(map->conf),
1368 REG_READ(map->src),
1369 REG_READ(map->fp0),
1370 REG_READ(map->fp1),
1371 REG_READ(map->dpll),
1372 REG_READ(map->htotal),
1373 REG_READ(map->hblank),
1374 REG_READ(map->hsync),
1375 REG_READ(map->vtotal),
1376 REG_READ(map->vblank),
1377 REG_READ(map->vsync),
1378 REG_READ(map->stride),
1379 REG_READ(map->size),
1380 REG_READ(map->pos),
1381 REG_READ(map->base)
1382 );
6a227d5f
AC		 1383
1384 DRM_DEBUG(
1385 "saved: (%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
1386 crtc_state->saveDSPCNTR,
1387 crtc_state->savePIPECONF,
1388 crtc_state->savePIPESRC,
1389 crtc_state->saveFP0,
1390 crtc_state->saveFP1,
1391 crtc_state->saveDPLL,
1392 crtc_state->saveHTOTAL,
1393 crtc_state->saveHBLANK,
1394 crtc_state->saveHSYNC,
1395 crtc_state->saveVTOTAL,
1396 crtc_state->saveVBLANK,
1397 crtc_state->saveVSYNC,
1398 crtc_state->saveDSPSTRIDE,
1399 crtc_state->saveDSPSIZE,
1400 crtc_state->saveDSPPOS,
1401 crtc_state->saveDSPBASE
213a8434 1402 );
6a227d5f
AC		 1403
1404
1405 if (crtc_state->saveDPLL & DPLL_VCO_ENABLE) {
213a8434
AC		 1406 REG_WRITE(map->dpll,
1407 crtc_state->saveDPLL & ~DPLL_VCO_ENABLE);
1408 REG_READ(map->dpll);
6a227d5f 1409 DRM_DEBUG("write dpll: %x\n",
213a8434 1410 REG_READ(map->dpll));
6a227d5f
AC		 1411 udelay(150);
1412 }
1413
213a8434
AC		 1414 REG_WRITE(map->fp0, crtc_state->saveFP0);
1415 REG_READ(map->fp0);
6a227d5f 1416
213a8434
AC		 1417 REG_WRITE(map->fp1, crtc_state->saveFP1);
1418 REG_READ(map->fp1);
6a227d5f 1419
213a8434
AC		 1420 REG_WRITE(map->dpll, crtc_state->saveDPLL);
1421 REG_READ(map->dpll);
6a227d5f
AC		 1422 udelay(150);
1423
213a8434
AC		 1424 REG_WRITE(map->htotal, crtc_state->saveHTOTAL);
1425 REG_WRITE(map->hblank, crtc_state->saveHBLANK);
1426 REG_WRITE(map->hsync, crtc_state->saveHSYNC);
1427 REG_WRITE(map->vtotal, crtc_state->saveVTOTAL);
1428 REG_WRITE(map->vblank, crtc_state->saveVBLANK);
1429 REG_WRITE(map->vsync, crtc_state->saveVSYNC);
1430 REG_WRITE(map->stride, crtc_state->saveDSPSTRIDE);
6a227d5f 1431
213a8434
AC		 1432 REG_WRITE(map->size, crtc_state->saveDSPSIZE);
1433 REG_WRITE(map->pos, crtc_state->saveDSPPOS);
6a227d5f 1434
213a8434
AC		 1435 REG_WRITE(map->src, crtc_state->savePIPESRC);
1436 REG_WRITE(map->base, crtc_state->saveDSPBASE);
1437 REG_WRITE(map->conf, crtc_state->savePIPECONF);
6a227d5f
AC		 1438
1439 cdv_intel_wait_for_vblank(dev);
1440
213a8434
AC		 1441 REG_WRITE(map->cntr, crtc_state->saveDSPCNTR);
1442 REG_WRITE(map->base, crtc_state->saveDSPBASE);
6a227d5f
AC		 1443
1444 cdv_intel_wait_for_vblank(dev);
1445
213a8434 1446 paletteReg = map->palette;
6a227d5f
AC		 1447 for (i = 0; i < 256; ++i)
1448 REG_WRITE(paletteReg + (i << 2), crtc_state->savePalette[i]);
1449}
1450
1451static int cdv_intel_crtc_cursor_set(struct drm_crtc *crtc,
1452 struct drm_file *file_priv,
1453 uint32_t handle,
1454 uint32_t width, uint32_t height)
1455{
1456 struct drm_device *dev = crtc->dev;
1457 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1458 int pipe = psb_intel_crtc->pipe;
1459 uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR;
1460 uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
1461 uint32_t temp;
1462 size_t addr = 0;
1463 struct gtt_range *gt;
1464 struct drm_gem_object *obj;
70b1304e 1465 int ret = 0;
6a227d5f
AC		 1466
1467 /* if we want to turn of the cursor ignore width and height */
1468 if (!handle) {
1469 /* turn off the cursor */
1470 temp = CURSOR_MODE_DISABLE;
1471
1472 if (gma_power_begin(dev, false)) {
1473 REG_WRITE(control, temp);
1474 REG_WRITE(base, 0);
1475 gma_power_end(dev);
1476 }
1477
1478 /* unpin the old GEM object */
1479 if (psb_intel_crtc->cursor_obj) {
1480 gt = container_of(psb_intel_crtc->cursor_obj,
1481 struct gtt_range, gem);
1482 psb_gtt_unpin(gt);
1483 drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
1484 psb_intel_crtc->cursor_obj = NULL;
1485 }
1486
1487 return 0;
1488 }
1489
1490 /* Currently we only support 64x64 cursors */
1491 if (width != 64 || height != 64) {
1492 dev_dbg(dev->dev, "we currently only support 64x64 cursors\n");
1493 return -EINVAL;
1494 }
1495
1496 obj = drm_gem_object_lookup(dev, file_priv, handle);
1497 if (!obj)
1498 return -ENOENT;
1499
1500 if (obj->size < width * height * 4) {
1501 dev_dbg(dev->dev, "buffer is to small\n");
70b1304e
PJ		 1502 ret = -ENOMEM;
1503 goto unref_cursor;
6a227d5f
AC		 1504 }
1505
1506 gt = container_of(obj, struct gtt_range, gem);
1507
1508 /* Pin the memory into the GTT */
1509 ret = psb_gtt_pin(gt);
1510 if (ret) {
1511 dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
70b1304e 1512 goto unref_cursor;
6a227d5f
AC		 1513 }
1514
1515 addr = gt->offset; /* Or resource.start ??? */
1516
1517 psb_intel_crtc->cursor_addr = addr;
1518
1519 temp = 0;
1520 /* set the pipe for the cursor */
1521 temp |= (pipe << 28);
1522 temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
1523
1524 if (gma_power_begin(dev, false)) {
1525 REG_WRITE(control, temp);
1526 REG_WRITE(base, addr);
1527 gma_power_end(dev);
1528 }
1529
1530 /* unpin the old GEM object */
1531 if (psb_intel_crtc->cursor_obj) {
1532 gt = container_of(psb_intel_crtc->cursor_obj,
1533 struct gtt_range, gem);
1534 psb_gtt_unpin(gt);
1535 drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
6a227d5f 1536 }
70b1304e
PJ		 1537
1538 psb_intel_crtc->cursor_obj = obj;
1539 return ret;
1540
1541unref_cursor:
1542 drm_gem_object_unreference(obj);
1543 return ret;
6a227d5f
AC		 1544}
1545
1546static int cdv_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
1547{
1548 struct drm_device *dev = crtc->dev;
1549 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1550 int pipe = psb_intel_crtc->pipe;
1551 uint32_t temp = 0;
1552 uint32_t adder;
1553
1554
1555 if (x < 0) {
1556 temp |= (CURSOR_POS_SIGN << CURSOR_X_SHIFT);
1557 x = -x;
1558 }
1559 if (y < 0) {
1560 temp |= (CURSOR_POS_SIGN << CURSOR_Y_SHIFT);
1561 y = -y;
1562 }
1563
1564 temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
1565 temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
1566
1567 adder = psb_intel_crtc->cursor_addr;
1568
1569 if (gma_power_begin(dev, false)) {
1570 REG_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);
1571 REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, adder);
1572 gma_power_end(dev);
1573 }
1574 return 0;
1575}
1576
1577static void cdv_intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
1578 u16 *green, u16 *blue, uint32_t start, uint32_t size)
1579{
1580 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1581 int i;
1582 int end = (start + size > 256) ? 256 : start + size;
1583
1584 for (i = start; i < end; i++) {
1585 psb_intel_crtc->lut_r[i] = red[i] >> 8;
1586 psb_intel_crtc->lut_g[i] = green[i] >> 8;
1587 psb_intel_crtc->lut_b[i] = blue[i] >> 8;
1588 }
1589
1590 cdv_intel_crtc_load_lut(crtc);
1591}
1592
1593static int cdv_crtc_set_config(struct drm_mode_set *set)
1594{
1595 int ret = 0;
1596 struct drm_device *dev = set->crtc->dev;
1597 struct drm_psb_private *dev_priv = dev->dev_private;
1598
1599 if (!dev_priv->rpm_enabled)
1600 return drm_crtc_helper_set_config(set);
1601
1602 pm_runtime_forbid(&dev->pdev->dev);
1603
1604 ret = drm_crtc_helper_set_config(set);
1605
1606 pm_runtime_allow(&dev->pdev->dev);
1607
1608 return ret;
1609}
1610
1611/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
1612
1613/* FIXME: why are we using this, should it be cdv_ in this tree ? */
1614
1615static void i8xx_clock(int refclk, struct cdv_intel_clock_t *clock)
1616{
1617 clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
1618 clock->p = clock->p1 * clock->p2;
1619 clock->vco = refclk * clock->m / (clock->n + 2);
1620 clock->dot = clock->vco / clock->p;
1621}
1622
1623/* Returns the clock of the currently programmed mode of the given pipe. */
1624static int cdv_intel_crtc_clock_get(struct drm_device *dev,
1625 struct drm_crtc *crtc)
1626{
213a8434 1627 struct drm_psb_private *dev_priv = dev->dev_private;
6a227d5f
AC		 1628 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1629 int pipe = psb_intel_crtc->pipe;
213a8434 1630 const struct psb_offset *map = &dev_priv->regmap[pipe];
6a227d5f
AC		 1631 u32 dpll;
1632 u32 fp;
1633 struct cdv_intel_clock_t clock;
1634 bool is_lvds;
6256304b 1635 struct psb_pipe *p = &dev_priv->regs.pipe[pipe];
6a227d5f
AC		 1636
1637 if (gma_power_begin(dev, false)) {
213a8434 1638 dpll = REG_READ(map->dpll);
6a227d5f 1639 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
213a8434 1640 fp = REG_READ(map->fp0);
6a227d5f 1641 else
213a8434 1642 fp = REG_READ(map->fp1);
6a227d5f
AC		 1643 is_lvds = (pipe == 1) && (REG_READ(LVDS) & LVDS_PORT_EN);
1644 gma_power_end(dev);
1645 } else {
6256304b 1646 dpll = p->dpll;
6a227d5f 1647 if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
6256304b 1648 fp = p->fp0;
6a227d5f 1649 else
6256304b 1650 fp = p->fp1;
6a227d5f 1651
648a8e34 1652 is_lvds = (pipe == 1) &&
c6265ff5 1653 (dev_priv->regs.psb.saveLVDS & LVDS_PORT_EN);
6a227d5f
AC		 1654 }
1655
1656 clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
1657 clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
1658 clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
1659
1660 if (is_lvds) {
1661 clock.p1 =
1662 ffs((dpll &
1663 DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
1664 DPLL_FPA01_P1_POST_DIV_SHIFT);
1665 if (clock.p1 == 0) {
1666 clock.p1 = 4;
1667 dev_err(dev->dev, "PLL %d\n", dpll);
1668 }
1669 clock.p2 = 14;
1670
1671 if ((dpll & PLL_REF_INPUT_MASK) ==
1672 PLLB_REF_INPUT_SPREADSPECTRUMIN) {
1673 /* XXX: might not be 66MHz */
1674 i8xx_clock(66000, &clock);
1675 } else
1676 i8xx_clock(48000, &clock);
1677 } else {
1678 if (dpll & PLL_P1_DIVIDE_BY_TWO)
1679 clock.p1 = 2;
1680 else {
1681 clock.p1 =
1682 ((dpll &
1683 DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
1684 DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
1685 }
1686 if (dpll & PLL_P2_DIVIDE_BY_4)
1687 clock.p2 = 4;
1688 else
1689 clock.p2 = 2;
1690
1691 i8xx_clock(48000, &clock);
1692 }
1693
1694 /* XXX: It would be nice to validate the clocks, but we can't reuse
1695 * i830PllIsValid() because it relies on the xf86_config connector
1696 * configuration being accurate, which it isn't necessarily.
1697 */
1698
1699 return clock.dot;
1700}
1701
1702/** Returns the currently programmed mode of the given pipe. */
1703struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,
1704 struct drm_crtc *crtc)
1705{
1706 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1707 int pipe = psb_intel_crtc->pipe;
213a8434
AC		 1708 struct drm_psb_private *dev_priv = dev->dev_private;
1709 struct psb_pipe *p = &dev_priv->regs.pipe[pipe];
1710 const struct psb_offset *map = &dev_priv->regmap[pipe];
6a227d5f
AC		 1711 struct drm_display_mode *mode;
1712 int htot;
1713 int hsync;
1714 int vtot;
1715 int vsync;
6a227d5f
AC		 1716
1717 if (gma_power_begin(dev, false)) {
213a8434
AC		 1718 htot = REG_READ(map->htotal);
1719 hsync = REG_READ(map->hsync);
1720 vtot = REG_READ(map->vtotal);
1721 vsync = REG_READ(map->vsync);
6a227d5f
AC		 1722 gma_power_end(dev);
1723 } else {
6256304b
AC		 1724 htot = p->htotal;
1725 hsync = p->hsync;
1726 vtot = p->vtotal;
1727 vsync = p->vsync;
6a227d5f
AC		 1728 }
1729
1730 mode = kzalloc(sizeof(*mode), GFP_KERNEL);
1731 if (!mode)
1732 return NULL;
1733
1734 mode->clock = cdv_intel_crtc_clock_get(dev, crtc);
1735 mode->hdisplay = (htot & 0xffff) + 1;
1736 mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
1737 mode->hsync_start = (hsync & 0xffff) + 1;
1738 mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
1739 mode->vdisplay = (vtot & 0xffff) + 1;
1740 mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
1741 mode->vsync_start = (vsync & 0xffff) + 1;
1742 mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
1743
1744 drm_mode_set_name(mode);
1745 drm_mode_set_crtcinfo(mode, 0);
1746
1747 return mode;
1748}
1749
1750static void cdv_intel_crtc_destroy(struct drm_crtc *crtc)
1751{
1752 struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
1753
1754 kfree(psb_intel_crtc->crtc_state);
1755 drm_crtc_cleanup(crtc);
1756 kfree(psb_intel_crtc);
1757}
1758
22e7c385
PJ		 1759static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
1760{
1761 struct gtt_range *gt;
1762 struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
1763
1764 crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
1765
1766 if (crtc->fb) {
1767 gt = to_psb_fb(crtc->fb)->gtt;
1768 psb_gtt_unpin(gt);
1769 }
1770}
1771
6a227d5f
AC		 1772const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
1773 .dpms = cdv_intel_crtc_dpms,
1774 .mode_fixup = cdv_intel_crtc_mode_fixup,
1775 .mode_set = cdv_intel_crtc_mode_set,
1776 .mode_set_base = cdv_intel_pipe_set_base,
1777 .prepare = cdv_intel_crtc_prepare,
1778 .commit = cdv_intel_crtc_commit,
22e7c385 1779 .disable = cdv_intel_crtc_disable,
6a227d5f
AC		 1780};
1781
1782const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
1783 .save = cdv_intel_crtc_save,
1784 .restore = cdv_intel_crtc_restore,
1785 .cursor_set = cdv_intel_crtc_cursor_set,
1786 .cursor_move = cdv_intel_crtc_cursor_move,
1787 .gamma_set = cdv_intel_crtc_gamma_set,
1788 .set_config = cdv_crtc_set_config,
1789 .destroy = cdv_intel_crtc_destroy,
1790};
kernel source for telekom puls (alcatel/mediatek)