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Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
[net-next-2.6.git] / drivers / gpu / drm / nouveau / nouveau_bios.c
CommitLineData
6ee73861
BS		 1/*
2 * Copyright 2005-2006 Erik Waling
3 * Copyright 2006 Stephane Marchesin
4 * Copyright 2007-2009 Stuart Bennett
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
21 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25#include "drmP.h"
26#define NV_DEBUG_NOTRACE
27#include "nouveau_drv.h"
28#include "nouveau_hw.h"
25908b77 29#include "nouveau_encoder.h"
6ee73861
BS		 30
31/* these defines are made up */
32#define NV_CIO_CRE_44_HEADA 0x0
33#define NV_CIO_CRE_44_HEADB 0x3
34#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */
35#define LEGACY_I2C_CRT 0x80
36#define LEGACY_I2C_PANEL 0x81
37#define LEGACY_I2C_TV 0x82
38
39#define EDID1_LEN 128
40
41#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg)
42#define LOG_OLD_VALUE(x)
43
44#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x))
45#define ROM32(x) le32_to_cpu(*(uint32_t *)&(x))
46
47struct init_exec {
48 bool execute;
49 bool repeat;
50};
51
52static bool nv_cksum(const uint8_t *data, unsigned int length)
53{
54 /*
55 * There's a few checksums in the BIOS, so here's a generic checking
56 * function.
57 */
58 int i;
59 uint8_t sum = 0;
60
61 for (i = 0; i < length; i++)
62 sum += data[i];
63
64 if (sum)
65 return true;
66
67 return false;
68}
69
70static int
71score_vbios(struct drm_device *dev, const uint8_t *data, const bool writeable)
72{
73 if (!(data[0] == 0x55 && data[1] == 0xAA)) {
74 NV_TRACEWARN(dev, "... BIOS signature not found\n");
75 return 0;
76 }
77
78 if (nv_cksum(data, data[2] * 512)) {
79 NV_TRACEWARN(dev, "... BIOS checksum invalid\n");
80 /* if a ro image is somewhat bad, it's probably all rubbish */
81 return writeable ? 2 : 1;
82 } else
83 NV_TRACE(dev, "... appears to be valid\n");
84
85 return 3;
86}
87
88static void load_vbios_prom(struct drm_device *dev, uint8_t *data)
89{
90 struct drm_nouveau_private *dev_priv = dev->dev_private;
91 uint32_t pci_nv_20, save_pci_nv_20;
92 int pcir_ptr;
93 int i;
94
95 if (dev_priv->card_type >= NV_50)
96 pci_nv_20 = 0x88050;
97 else
98 pci_nv_20 = NV_PBUS_PCI_NV_20;
99
100 /* enable ROM access */
101 save_pci_nv_20 = nvReadMC(dev, pci_nv_20);
102 nvWriteMC(dev, pci_nv_20,
103 save_pci_nv_20 & ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
104
105 /* bail if no rom signature */
106 if (nv_rd08(dev, NV_PROM_OFFSET) != 0x55 ||
107 nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa)
108 goto out;
109
110 /* additional check (see note below) - read PCI record header */
111 pcir_ptr = nv_rd08(dev, NV_PROM_OFFSET + 0x18) |
112 nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8;
113 if (nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr) != 'P' ||
114 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 1) != 'C' ||
115 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 2) != 'I' ||
116 nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 3) != 'R')
117 goto out;
118
119 /* on some 6600GT/6800LE prom reads are messed up. nvclock alleges a
120 * a good read may be obtained by waiting or re-reading (cargocult: 5x)
121 * each byte. we'll hope pramin has something usable instead
122 */
123 for (i = 0; i < NV_PROM_SIZE; i++)
124 data[i] = nv_rd08(dev, NV_PROM_OFFSET + i);
125
126out:
127 /* disable ROM access */
128 nvWriteMC(dev, pci_nv_20,
129 save_pci_nv_20 | NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
130}
131
132static void load_vbios_pramin(struct drm_device *dev, uint8_t *data)
133{
134 struct drm_nouveau_private *dev_priv = dev->dev_private;
135 uint32_t old_bar0_pramin = 0;
136 int i;
137
138 if (dev_priv->card_type >= NV_50) {
139 uint32_t vbios_vram = (nv_rd32(dev, 0x619f04) & ~0xff) << 8;
140
141 if (!vbios_vram)
142 vbios_vram = (nv_rd32(dev, 0x1700) << 16) + 0xf0000;
143
144 old_bar0_pramin = nv_rd32(dev, 0x1700);
145 nv_wr32(dev, 0x1700, vbios_vram >> 16);
146 }
147
148 /* bail if no rom signature */
149 if (nv_rd08(dev, NV_PRAMIN_OFFSET) != 0x55 ||
150 nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa)
151 goto out;
152
153 for (i = 0; i < NV_PROM_SIZE; i++)
154 data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i);
155
156out:
157 if (dev_priv->card_type >= NV_50)
158 nv_wr32(dev, 0x1700, old_bar0_pramin);
159}
160
161static void load_vbios_pci(struct drm_device *dev, uint8_t *data)
162{
163 void __iomem *rom = NULL;
164 size_t rom_len;
165 int ret;
166
167 ret = pci_enable_rom(dev->pdev);
168 if (ret)
169 return;
170
171 rom = pci_map_rom(dev->pdev, &rom_len);
172 if (!rom)
173 goto out;
174 memcpy_fromio(data, rom, rom_len);
175 pci_unmap_rom(dev->pdev, rom);
176
177out:
178 pci_disable_rom(dev->pdev);
179}
180
afeb3e11
DA		 181static void load_vbios_acpi(struct drm_device *dev, uint8_t *data)
182{
183 int i;
184 int ret;
185 int size = 64 * 1024;
186
187 if (!nouveau_acpi_rom_supported(dev->pdev))
188 return;
189
190 for (i = 0; i < (size / ROM_BIOS_PAGE); i++) {
191 ret = nouveau_acpi_get_bios_chunk(data,
192 (i * ROM_BIOS_PAGE),
193 ROM_BIOS_PAGE);
194 if (ret <= 0)
195 break;
196 }
197 return;
198}
199
6ee73861
BS		 200struct methods {
201 const char desc[8];
202 void (*loadbios)(struct drm_device *, uint8_t *);
203 const bool rw;
6ee73861
BS		 204};
205
206static struct methods nv04_methods[] = {
207 { "PROM", load_vbios_prom, false },
208 { "PRAMIN", load_vbios_pramin, true },
209 { "PCIROM", load_vbios_pci, true },
6ee73861
BS		 210};
211
212static struct methods nv50_methods[] = {
afeb3e11 213 { "ACPI", load_vbios_acpi, true },
6ee73861
BS		 214 { "PRAMIN", load_vbios_pramin, true },
215 { "PROM", load_vbios_prom, false },
216 { "PCIROM", load_vbios_pci, true },
6ee73861
BS		 217};
218
657b6245
MK		 219#define METHODCNT 3
220
6ee73861
BS		 221static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
222{
223 struct drm_nouveau_private *dev_priv = dev->dev_private;
657b6245
MK		 224 struct methods *methods;
225 int i;
6ee73861 226 int testscore = 3;
657b6245 227 int scores[METHODCNT];
6ee73861
BS		 228
229 if (nouveau_vbios) {
657b6245
MK		 230 methods = nv04_methods;
231 for (i = 0; i < METHODCNT; i++)
232 if (!strcasecmp(nouveau_vbios, methods[i].desc))
6ee73861 233 break;
6ee73861 234
657b6245 235 if (i < METHODCNT) {
6ee73861 236 NV_INFO(dev, "Attempting to use BIOS image from %s\n",
657b6245 237 methods[i].desc);
6ee73861 238
657b6245
MK		 239 methods[i].loadbios(dev, data);
240 if (score_vbios(dev, data, methods[i].rw))
6ee73861
BS		 241 return true;
242 }
243
244 NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
245 }
246
247 if (dev_priv->card_type < NV_50)
248 methods = nv04_methods;
249 else
250 methods = nv50_methods;
251
657b6245 252 for (i = 0; i < METHODCNT; i++) {
6ee73861 253 NV_TRACE(dev, "Attempting to load BIOS image from %s\n",
657b6245 254 methods[i].desc);
6ee73861 255 data[0] = data[1] = 0; /* avoid reuse of previous image */
657b6245
MK		 256 methods[i].loadbios(dev, data);
257 scores[i] = score_vbios(dev, data, methods[i].rw);
258 if (scores[i] == testscore)
6ee73861 259 return true;
6ee73861
BS		 260 }
261
262 while (--testscore > 0) {
657b6245
MK		 263 for (i = 0; i < METHODCNT; i++) {
264 if (scores[i] == testscore) {
6ee73861 265 NV_TRACE(dev, "Using BIOS image from %s\n",
657b6245
MK		 266 methods[i].desc);
267 methods[i].loadbios(dev, data);
6ee73861
BS		 268 return true;
269 }
6ee73861
BS		 270 }
271 }
272
273 NV_ERROR(dev, "No valid BIOS image found\n");
274 return false;
275}
276
277struct init_tbl_entry {
278 char *name;
279 uint8_t id;
9170a824
BS		 280 /* Return:
281 * > 0: success, length of opcode
282 * 0: success, but abort further parsing of table (INIT_DONE etc)
283 * < 0: failure, table parsing will be aborted
284 */
37383650 285 int (*handler)(struct nvbios *, uint16_t, struct init_exec *);
6ee73861
BS		 286};
287
288struct bit_entry {
289 uint8_t id[2];
290 uint16_t length;
291 uint16_t offset;
292};
293
294static int parse_init_table(struct nvbios *, unsigned int, struct init_exec *);
295
296#define MACRO_INDEX_SIZE 2
297#define MACRO_SIZE 8
298#define CONDITION_SIZE 12
299#define IO_FLAG_CONDITION_SIZE 9
300#define IO_CONDITION_SIZE 5
301#define MEM_INIT_SIZE 66
302
303static void still_alive(void)
304{
305#if 0
306 sync();
307 msleep(2);
308#endif
309}
310
311static uint32_t
312munge_reg(struct nvbios *bios, uint32_t reg)
313{
314 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
315 struct dcb_entry *dcbent = bios->display.output;
316
317 if (dev_priv->card_type < NV_50)
318 return reg;
319
320 if (reg & 0x40000000) {
321 BUG_ON(!dcbent);
322
323 reg += (ffs(dcbent->or) - 1) * 0x800;
324 if ((reg & 0x20000000) && !(dcbent->sorconf.link & 1))
325 reg += 0x00000080;
326 }
327
328 reg &= ~0x60000000;
329 return reg;
330}
331
332static int
333valid_reg(struct nvbios *bios, uint32_t reg)
334{
335 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
336 struct drm_device *dev = bios->dev;
337
338 /* C51 has misaligned regs on purpose. Marvellous */
9855e584 339 if (reg & 0x2 ||
04a39c57 340 (reg & 0x1 && dev_priv->vbios.chip_version != 0x51))
9855e584
BS		 341 NV_ERROR(dev, "======= misaligned reg 0x%08X =======\n", reg);
342
343 /* warn on C51 regs that haven't been verified accessible in tracing */
04a39c57 344 if (reg & 0x1 && dev_priv->vbios.chip_version == 0x51 &&
6ee73861
BS		 345 reg != 0x130d && reg != 0x1311 && reg != 0x60081d)
346 NV_WARN(dev, "=== C51 misaligned reg 0x%08X not verified ===\n",
347 reg);
348
9855e584
BS		 349 if (reg >= (8*1024*1024)) {
350 NV_ERROR(dev, "=== reg 0x%08x out of mapped bounds ===\n", reg);
351 return 0;
6ee73861 352 }
9855e584
BS		 353
354 return 1;
6ee73861
BS		 355}
356
357static bool
358valid_idx_port(struct nvbios *bios, uint16_t port)
359{
360 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
361 struct drm_device *dev = bios->dev;
362
363 /*
364 * If adding more ports here, the read/write functions below will need
365 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
366 * used for the port in question
367 */
368 if (dev_priv->card_type < NV_50) {
369 if (port == NV_CIO_CRX__COLOR)
370 return true;
371 if (port == NV_VIO_SRX)
372 return true;
373 } else {
374 if (port == NV_CIO_CRX__COLOR)
375 return true;
376 }
377
378 NV_ERROR(dev, "========== unknown indexed io port 0x%04X ==========\n",
379 port);
380
381 return false;
382}
383
384static bool
385valid_port(struct nvbios *bios, uint16_t port)
386{
387 struct drm_device *dev = bios->dev;
388
389 /*
390 * If adding more ports here, the read/write functions below will need
391 * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
392 * used for the port in question
393 */
394 if (port == NV_VIO_VSE2)
395 return true;
396
397 NV_ERROR(dev, "========== unknown io port 0x%04X ==========\n", port);
398
399 return false;
400}
401
402static uint32_t
403bios_rd32(struct nvbios *bios, uint32_t reg)
404{
405 uint32_t data;
406
407 reg = munge_reg(bios, reg);
408 if (!valid_reg(bios, reg))
409 return 0;
410
411 /*
412 * C51 sometimes uses regs with bit0 set in the address. For these
413 * cases there should exist a translation in a BIOS table to an IO
414 * port address which the BIOS uses for accessing the reg
415 *
416 * These only seem to appear for the power control regs to a flat panel,
417 * and the GPIO regs at 0x60081*. In C51 mmio traces the normal regs
418 * for 0x1308 and 0x1310 are used - hence the mask below. An S3
419 * suspend-resume mmio trace from a C51 will be required to see if this
420 * is true for the power microcode in 0x14.., or whether the direct IO
421 * port access method is needed
422 */
423 if (reg & 0x1)
424 reg &= ~0x1;
425
426 data = nv_rd32(bios->dev, reg);
427
428 BIOSLOG(bios, " Read: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
429
430 return data;
431}
432
433static void
434bios_wr32(struct nvbios *bios, uint32_t reg, uint32_t data)
435{
436 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
437
438 reg = munge_reg(bios, reg);
439 if (!valid_reg(bios, reg))
440 return;
441
442 /* see note in bios_rd32 */
443 if (reg & 0x1)
444 reg &= 0xfffffffe;
445
446 LOG_OLD_VALUE(bios_rd32(bios, reg));
447 BIOSLOG(bios, " Write: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
448
04a39c57 449 if (dev_priv->vbios.execute) {
6ee73861
BS		 450 still_alive();
451 nv_wr32(bios->dev, reg, data);
452 }
453}
454
455static uint8_t
456bios_idxprt_rd(struct nvbios *bios, uint16_t port, uint8_t index)
457{
458 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
459 struct drm_device *dev = bios->dev;
460 uint8_t data;
461
462 if (!valid_idx_port(bios, port))
463 return 0;
464
465 if (dev_priv->card_type < NV_50) {
466 if (port == NV_VIO_SRX)
467 data = NVReadVgaSeq(dev, bios->state.crtchead, index);
468 else /* assume NV_CIO_CRX__COLOR */
469 data = NVReadVgaCrtc(dev, bios->state.crtchead, index);
470 } else {
471 uint32_t data32;
472
473 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
474 data = (data32 >> ((index & 3) << 3)) & 0xff;
475 }
476
477 BIOSLOG(bios, " Indexed IO read: Port: 0x%04X, Index: 0x%02X, "
478 "Head: 0x%02X, Data: 0x%02X\n",
479 port, index, bios->state.crtchead, data);
480 return data;
481}
482
483static void
484bios_idxprt_wr(struct nvbios *bios, uint16_t port, uint8_t index, uint8_t data)
485{
486 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
487 struct drm_device *dev = bios->dev;
488
489 if (!valid_idx_port(bios, port))
490 return;
491
492 /*
493 * The current head is maintained in the nvbios member state.crtchead.
494 * We trap changes to CR44 and update the head variable and hence the
495 * register set written.
496 * As CR44 only exists on CRTC0, we update crtchead to head0 in advance
497 * of the write, and to head1 after the write
498 */
499 if (port == NV_CIO_CRX__COLOR && index == NV_CIO_CRE_44 &&
500 data != NV_CIO_CRE_44_HEADB)
501 bios->state.crtchead = 0;
502
503 LOG_OLD_VALUE(bios_idxprt_rd(bios, port, index));
504 BIOSLOG(bios, " Indexed IO write: Port: 0x%04X, Index: 0x%02X, "
505 "Head: 0x%02X, Data: 0x%02X\n",
506 port, index, bios->state.crtchead, data);
507
508 if (bios->execute && dev_priv->card_type < NV_50) {
509 still_alive();
510 if (port == NV_VIO_SRX)
511 NVWriteVgaSeq(dev, bios->state.crtchead, index, data);
512 else /* assume NV_CIO_CRX__COLOR */
513 NVWriteVgaCrtc(dev, bios->state.crtchead, index, data);
514 } else
515 if (bios->execute) {
516 uint32_t data32, shift = (index & 3) << 3;
517
518 still_alive();
519
520 data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
521 data32 &= ~(0xff << shift);
522 data32 |= (data << shift);
523 bios_wr32(bios, NV50_PDISPLAY_VGACRTC(index & ~3), data32);
524 }
525
526 if (port == NV_CIO_CRX__COLOR &&
527 index == NV_CIO_CRE_44 && data == NV_CIO_CRE_44_HEADB)
528 bios->state.crtchead = 1;
529}
530
531static uint8_t
532bios_port_rd(struct nvbios *bios, uint16_t port)
533{
534 uint8_t data, head = bios->state.crtchead;
535
536 if (!valid_port(bios, port))
537 return 0;
538
539 data = NVReadPRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port);
540
541 BIOSLOG(bios, " IO read: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
542 port, head, data);
543
544 return data;
545}
546
547static void
548bios_port_wr(struct nvbios *bios, uint16_t port, uint8_t data)
549{
550 int head = bios->state.crtchead;
551
552 if (!valid_port(bios, port))
553 return;
554
555 LOG_OLD_VALUE(bios_port_rd(bios, port));
556 BIOSLOG(bios, " IO write: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
557 port, head, data);
558
559 if (!bios->execute)
560 return;
561
562 still_alive();
563 NVWritePRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port, data);
564}
565
566static bool
567io_flag_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
568{
569 /*
570 * The IO flag condition entry has 2 bytes for the CRTC port; 1 byte
571 * for the CRTC index; 1 byte for the mask to apply to the value
572 * retrieved from the CRTC; 1 byte for the shift right to apply to the
573 * masked CRTC value; 2 bytes for the offset to the flag array, to
574 * which the shifted value is added; 1 byte for the mask applied to the
575 * value read from the flag array; and 1 byte for the value to compare
576 * against the masked byte from the flag table.
577 */
578
579 uint16_t condptr = bios->io_flag_condition_tbl_ptr + cond * IO_FLAG_CONDITION_SIZE;
580 uint16_t crtcport = ROM16(bios->data[condptr]);
581 uint8_t crtcindex = bios->data[condptr + 2];
582 uint8_t mask = bios->data[condptr + 3];
583 uint8_t shift = bios->data[condptr + 4];
584 uint16_t flagarray = ROM16(bios->data[condptr + 5]);
585 uint8_t flagarraymask = bios->data[condptr + 7];
586 uint8_t cmpval = bios->data[condptr + 8];
587 uint8_t data;
588
589 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
590 "Shift: 0x%02X, FlagArray: 0x%04X, FAMask: 0x%02X, "
591 "Cmpval: 0x%02X\n",
592 offset, crtcport, crtcindex, mask, shift, flagarray, flagarraymask, cmpval);
593
594 data = bios_idxprt_rd(bios, crtcport, crtcindex);
595
596 data = bios->data[flagarray + ((data & mask) >> shift)];
597 data &= flagarraymask;
598
599 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
600 offset, data, cmpval);
601
602 return (data == cmpval);
603}
604
605static bool
606bios_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
607{
608 /*
609 * The condition table entry has 4 bytes for the address of the
610 * register to check, 4 bytes for a mask to apply to the register and
611 * 4 for a test comparison value
612 */
613
614 uint16_t condptr = bios->condition_tbl_ptr + cond * CONDITION_SIZE;
615 uint32_t reg = ROM32(bios->data[condptr]);
616 uint32_t mask = ROM32(bios->data[condptr + 4]);
617 uint32_t cmpval = ROM32(bios->data[condptr + 8]);
618 uint32_t data;
619
620 BIOSLOG(bios, "0x%04X: Cond: 0x%02X, Reg: 0x%08X, Mask: 0x%08X\n",
621 offset, cond, reg, mask);
622
623 data = bios_rd32(bios, reg) & mask;
624
625 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
626 offset, data, cmpval);
627
628 return (data == cmpval);
629}
630
631static bool
632io_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
633{
634 /*
635 * The IO condition entry has 2 bytes for the IO port address; 1 byte
636 * for the index to write to io_port; 1 byte for the mask to apply to
637 * the byte read from io_port+1; and 1 byte for the value to compare
638 * against the masked byte.
639 */
640
641 uint16_t condptr = bios->io_condition_tbl_ptr + cond * IO_CONDITION_SIZE;
642 uint16_t io_port = ROM16(bios->data[condptr]);
643 uint8_t port_index = bios->data[condptr + 2];
644 uint8_t mask = bios->data[condptr + 3];
645 uint8_t cmpval = bios->data[condptr + 4];
646
647 uint8_t data = bios_idxprt_rd(bios, io_port, port_index) & mask;
648
649 BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
650 offset, data, cmpval);
651
652 return (data == cmpval);
653}
654
655static int
656nv50_pll_set(struct drm_device *dev, uint32_t reg, uint32_t clk)
657{
658 struct drm_nouveau_private *dev_priv = dev->dev_private;
659 uint32_t reg0 = nv_rd32(dev, reg + 0);
660 uint32_t reg1 = nv_rd32(dev, reg + 4);
661 struct nouveau_pll_vals pll;
662 struct pll_lims pll_limits;
663 int ret;
664
665 ret = get_pll_limits(dev, reg, &pll_limits);
666 if (ret)
667 return ret;
668
669 clk = nouveau_calc_pll_mnp(dev, &pll_limits, clk, &pll);
670 if (!clk)
671 return -ERANGE;
672
673 reg0 = (reg0 & 0xfff8ffff) | (pll.log2P << 16);
674 reg1 = (reg1 & 0xffff0000) | (pll.N1 << 8) | pll.M1;
675
04a39c57 676 if (dev_priv->vbios.execute) {
6ee73861
BS		 677 still_alive();
678 nv_wr32(dev, reg + 4, reg1);
679 nv_wr32(dev, reg + 0, reg0);
680 }
681
682 return 0;
683}
684
685static int
686setPLL(struct nvbios *bios, uint32_t reg, uint32_t clk)
687{
688 struct drm_device *dev = bios->dev;
689 struct drm_nouveau_private *dev_priv = dev->dev_private;
690 /* clk in kHz */
691 struct pll_lims pll_lim;
692 struct nouveau_pll_vals pllvals;
693 int ret;
694
695 if (dev_priv->card_type >= NV_50)
696 return nv50_pll_set(dev, reg, clk);
697
698 /* high regs (such as in the mac g5 table) are not -= 4 */
699 ret = get_pll_limits(dev, reg > 0x405c ? reg : reg - 4, &pll_lim);
700 if (ret)
701 return ret;
702
703 clk = nouveau_calc_pll_mnp(dev, &pll_lim, clk, &pllvals);
704 if (!clk)
705 return -ERANGE;
706
707 if (bios->execute) {
708 still_alive();
709 nouveau_hw_setpll(dev, reg, &pllvals);
710 }
711
712 return 0;
713}
714
715static int dcb_entry_idx_from_crtchead(struct drm_device *dev)
716{
717 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 718 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 719
720 /*
721 * For the results of this function to be correct, CR44 must have been
722 * set (using bios_idxprt_wr to set crtchead), CR58 set for CR57 = 0,
723 * and the DCB table parsed, before the script calling the function is
724 * run. run_digital_op_script is example of how to do such setup
725 */
726
727 uint8_t dcb_entry = NVReadVgaCrtc5758(dev, bios->state.crtchead, 0);
728
7f245b20 729 if (dcb_entry > bios->dcb.entries) {
6ee73861
BS		 730 NV_ERROR(dev, "CR58 doesn't have a valid DCB entry currently "
731 "(%02X)\n", dcb_entry);
732 dcb_entry = 0x7f; /* unused / invalid marker */
733 }
734
735 return dcb_entry;
736}
737
f8b0be1a
BS		 738static int
739read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c)
740{
741 uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4;
742 int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES;
743 int recordoffset = 0, rdofs = 1, wrofs = 0;
744 uint8_t port_type = 0;
745
746 if (!i2ctable)
747 return -EINVAL;
748
749 if (dcb_version >= 0x30) {
750 if (i2ctable[0] != dcb_version) /* necessary? */
751 NV_WARN(dev,
752 "DCB I2C table version mismatch (%02X vs %02X)\n",
753 i2ctable[0], dcb_version);
754 dcb_i2c_ver = i2ctable[0];
755 headerlen = i2ctable[1];
756 if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES)
757 i2c_entries = i2ctable[2];
758 else
759 NV_WARN(dev,
760 "DCB I2C table has more entries than indexable "
761 "(%d entries, max %d)\n", i2ctable[2],
762 DCB_MAX_NUM_I2C_ENTRIES);
763 entry_len = i2ctable[3];
764 /* [4] is i2c_default_indices, read in parse_dcb_table() */
765 }
766 /*
767 * It's your own fault if you call this function on a DCB 1.1 BIOS --
768 * the test below is for DCB 1.2
769 */
770 if (dcb_version < 0x14) {
771 recordoffset = 2;
772 rdofs = 0;
773 wrofs = 1;
774 }
775
776 if (index == 0xf)
777 return 0;
778 if (index >= i2c_entries) {
779 NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n",
780 index, i2ctable[2]);
781 return -ENOENT;
782 }
783 if (i2ctable[headerlen + entry_len * index + 3] == 0xff) {
784 NV_ERROR(dev, "DCB I2C entry invalid\n");
785 return -EINVAL;
786 }
787
788 if (dcb_i2c_ver >= 0x30) {
789 port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index];
790
791 /*
792 * Fixup for chips using same address offset for read and
793 * write.
794 */
795 if (port_type == 4) /* seen on C51 */
796 rdofs = wrofs = 1;
797 if (port_type >= 5) /* G80+ */
798 rdofs = wrofs = 0;
799 }
800
801 if (dcb_i2c_ver >= 0x40) {
802 if (port_type != 5 && port_type != 6)
803 NV_WARN(dev, "DCB I2C table has port type %d\n", port_type);
804
805 i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]);
806 }
807
808 i2c->port_type = port_type;
809 i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index];
810 i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index];
811
812 return 0;
813}
814
6ee73861
BS		 815static struct nouveau_i2c_chan *
816init_i2c_device_find(struct drm_device *dev, int i2c_index)
817{
818 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 819 struct dcb_table *dcb = &dev_priv->vbios.dcb;
6ee73861
BS		 820
821 if (i2c_index == 0xff) {
822 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
823 int idx = dcb_entry_idx_from_crtchead(dev), shift = 0;
7f245b20 824 int default_indices = dcb->i2c_default_indices;
6ee73861 825
7f245b20 826 if (idx != 0x7f && dcb->entry[idx].i2c_upper_default)
6ee73861
BS		 827 shift = 4;
828
829 i2c_index = (default_indices >> shift) & 0xf;
830 }
831 if (i2c_index == 0x80) /* g80+ */
7f245b20 832 i2c_index = dcb->i2c_default_indices & 0xf;
04f542c0
BS		 833 else
834 if (i2c_index == 0x81)
835 i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4;
6ee73861 836
f8b0be1a
BS		 837 if (i2c_index > DCB_MAX_NUM_I2C_ENTRIES) {
838 NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index);
839 return NULL;
840 }
841
842 /* Make sure i2c table entry has been parsed, it may not
843 * have been if this is a bus not referenced by a DCB encoder
844 */
845 read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
846 i2c_index, &dcb->i2c[i2c_index]);
847
6ee73861
BS		 848 return nouveau_i2c_find(dev, i2c_index);
849}
850
7f245b20
BS		 851static uint32_t
852get_tmds_index_reg(struct drm_device *dev, uint8_t mlv)
6ee73861
BS		 853{
854 /*
855 * For mlv < 0x80, it is an index into a table of TMDS base addresses.
856 * For mlv == 0x80 use the "or" value of the dcb_entry indexed by
857 * CR58 for CR57 = 0 to index a table of offsets to the basic
858 * 0x6808b0 address.
859 * For mlv == 0x81 use the "or" value of the dcb_entry indexed by
860 * CR58 for CR57 = 0 to index a table of offsets to the basic
861 * 0x6808b0 address, and then flip the offset by 8.
862 */
863
864 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 865 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 866 const int pramdac_offset[13] = {
867 0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 };
868 const uint32_t pramdac_table[4] = {
869 0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 };
870
871 if (mlv >= 0x80) {
872 int dcb_entry, dacoffset;
873
874 /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
875 dcb_entry = dcb_entry_idx_from_crtchead(dev);
876 if (dcb_entry == 0x7f)
877 return 0;
7f245b20 878 dacoffset = pramdac_offset[bios->dcb.entry[dcb_entry].or];
6ee73861
BS		 879 if (mlv == 0x81)
880 dacoffset ^= 8;
881 return 0x6808b0 + dacoffset;
882 } else {
df31ef4d 883 if (mlv >= ARRAY_SIZE(pramdac_table)) {
6ee73861
BS		 884 NV_ERROR(dev, "Magic Lookup Value too big (%02X)\n",
885 mlv);
886 return 0;
887 }
888 return pramdac_table[mlv];
889 }
890}
891
37383650 892static int
6ee73861
BS		 893init_io_restrict_prog(struct nvbios *bios, uint16_t offset,
894 struct init_exec *iexec)
895{
896 /*
897 * INIT_IO_RESTRICT_PROG opcode: 0x32 ('2')
898 *
899 * offset (8 bit): opcode
900 * offset + 1 (16 bit): CRTC port
901 * offset + 3 (8 bit): CRTC index
902 * offset + 4 (8 bit): mask
903 * offset + 5 (8 bit): shift
904 * offset + 6 (8 bit): count
905 * offset + 7 (32 bit): register
906 * offset + 11 (32 bit): configuration 1
907 * ...
908 *
909 * Starting at offset + 11 there are "count" 32 bit values.
910 * To find out which value to use read index "CRTC index" on "CRTC
911 * port", AND this value with "mask" and then bit shift right "shift"
912 * bits. Read the appropriate value using this index and write to
913 * "register"
914 */
915
916 uint16_t crtcport = ROM16(bios->data[offset + 1]);
917 uint8_t crtcindex = bios->data[offset + 3];
918 uint8_t mask = bios->data[offset + 4];
919 uint8_t shift = bios->data[offset + 5];
920 uint8_t count = bios->data[offset + 6];
921 uint32_t reg = ROM32(bios->data[offset + 7]);
922 uint8_t config;
923 uint32_t configval;
37383650 924 int len = 11 + count * 4;
6ee73861
BS		 925
926 if (!iexec->execute)
37383650 927 return len;
6ee73861
BS		 928
929 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
930 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
931 offset, crtcport, crtcindex, mask, shift, count, reg);
932
933 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
934 if (config > count) {
935 NV_ERROR(bios->dev,
936 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
937 offset, config, count);
9170a824 938 return -EINVAL;
6ee73861
BS		 939 }
940
941 configval = ROM32(bios->data[offset + 11 + config * 4]);
942
943 BIOSLOG(bios, "0x%04X: Writing config %02X\n", offset, config);
944
945 bios_wr32(bios, reg, configval);
946
37383650 947 return len;
6ee73861
BS		 948}
949
37383650 950static int
6ee73861
BS		 951init_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
952{
953 /*
954 * INIT_REPEAT opcode: 0x33 ('3')
955 *
956 * offset (8 bit): opcode
957 * offset + 1 (8 bit): count
958 *
959 * Execute script following this opcode up to INIT_REPEAT_END
960 * "count" times
961 */
962
963 uint8_t count = bios->data[offset + 1];
964 uint8_t i;
965
966 /* no iexec->execute check by design */
967
968 BIOSLOG(bios, "0x%04X: Repeating following segment %d times\n",
969 offset, count);
970
971 iexec->repeat = true;
972
973 /*
974 * count - 1, as the script block will execute once when we leave this
975 * opcode -- this is compatible with bios behaviour as:
976 * a) the block is always executed at least once, even if count == 0
977 * b) the bios interpreter skips to the op following INIT_END_REPEAT,
978 * while we don't
979 */
980 for (i = 0; i < count - 1; i++)
981 parse_init_table(bios, offset + 2, iexec);
982
983 iexec->repeat = false;
984
37383650 985 return 2;
6ee73861
BS		 986}
987
37383650 988static int
6ee73861
BS		 989init_io_restrict_pll(struct nvbios *bios, uint16_t offset,
990 struct init_exec *iexec)
991{
992 /*
993 * INIT_IO_RESTRICT_PLL opcode: 0x34 ('4')
994 *
995 * offset (8 bit): opcode
996 * offset + 1 (16 bit): CRTC port
997 * offset + 3 (8 bit): CRTC index
998 * offset + 4 (8 bit): mask
999 * offset + 5 (8 bit): shift
1000 * offset + 6 (8 bit): IO flag condition index
1001 * offset + 7 (8 bit): count
1002 * offset + 8 (32 bit): register
1003 * offset + 12 (16 bit): frequency 1
1004 * ...
1005 *
1006 * Starting at offset + 12 there are "count" 16 bit frequencies (10kHz).
1007 * Set PLL register "register" to coefficients for frequency n,
1008 * selected by reading index "CRTC index" of "CRTC port" ANDed with
1009 * "mask" and shifted right by "shift".
1010 *
1011 * If "IO flag condition index" > 0, and condition met, double
1012 * frequency before setting it.
1013 */
1014
1015 uint16_t crtcport = ROM16(bios->data[offset + 1]);
1016 uint8_t crtcindex = bios->data[offset + 3];
1017 uint8_t mask = bios->data[offset + 4];
1018 uint8_t shift = bios->data[offset + 5];
1019 int8_t io_flag_condition_idx = bios->data[offset + 6];
1020 uint8_t count = bios->data[offset + 7];
1021 uint32_t reg = ROM32(bios->data[offset + 8]);
1022 uint8_t config;
1023 uint16_t freq;
37383650 1024 int len = 12 + count * 2;
6ee73861
BS		 1025
1026 if (!iexec->execute)
37383650 1027 return len;
6ee73861
BS		 1028
1029 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
1030 "Shift: 0x%02X, IO Flag Condition: 0x%02X, "
1031 "Count: 0x%02X, Reg: 0x%08X\n",
1032 offset, crtcport, crtcindex, mask, shift,
1033 io_flag_condition_idx, count, reg);
1034
1035 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
1036 if (config > count) {
1037 NV_ERROR(bios->dev,
1038 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
1039 offset, config, count);
9170a824 1040 return -EINVAL;
6ee73861
BS		 1041 }
1042
1043 freq = ROM16(bios->data[offset + 12 + config * 2]);
1044
1045 if (io_flag_condition_idx > 0) {
1046 if (io_flag_condition_met(bios, offset, io_flag_condition_idx)) {
1047 BIOSLOG(bios, "0x%04X: Condition fulfilled -- "
1048 "frequency doubled\n", offset);
1049 freq *= 2;
1050 } else
1051 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- "
1052 "frequency unchanged\n", offset);
1053 }
1054
1055 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %d0kHz\n",
1056 offset, reg, config, freq);
1057
1058 setPLL(bios, reg, freq * 10);
1059
37383650 1060 return len;
6ee73861
BS		 1061}
1062
37383650 1063static int
6ee73861
BS		 1064init_end_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1065{
1066 /*
1067 * INIT_END_REPEAT opcode: 0x36 ('6')
1068 *
1069 * offset (8 bit): opcode
1070 *
1071 * Marks the end of the block for INIT_REPEAT to repeat
1072 */
1073
1074 /* no iexec->execute check by design */
1075
1076 /*
1077 * iexec->repeat flag necessary to go past INIT_END_REPEAT opcode when
1078 * we're not in repeat mode
1079 */
1080 if (iexec->repeat)
37383650 1081 return 0;
6ee73861 1082
37383650 1083 return 1;
6ee73861
BS		 1084}
1085
37383650 1086static int
6ee73861
BS		 1087init_copy(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1088{
1089 /*
1090 * INIT_COPY opcode: 0x37 ('7')
1091 *
1092 * offset (8 bit): opcode
1093 * offset + 1 (32 bit): register
1094 * offset + 5 (8 bit): shift
1095 * offset + 6 (8 bit): srcmask
1096 * offset + 7 (16 bit): CRTC port
1097 * offset + 9 (8 bit): CRTC index
1098 * offset + 10 (8 bit): mask
1099 *
1100 * Read index "CRTC index" on "CRTC port", AND with "mask", OR with
1101 * (REGVAL("register") >> "shift" & "srcmask") and write-back to CRTC
1102 * port
1103 */
1104
1105 uint32_t reg = ROM32(bios->data[offset + 1]);
1106 uint8_t shift = bios->data[offset + 5];
1107 uint8_t srcmask = bios->data[offset + 6];
1108 uint16_t crtcport = ROM16(bios->data[offset + 7]);
1109 uint8_t crtcindex = bios->data[offset + 9];
1110 uint8_t mask = bios->data[offset + 10];
1111 uint32_t data;
1112 uint8_t crtcdata;
1113
1114 if (!iexec->execute)
37383650 1115 return 11;
6ee73861
BS		 1116
1117 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%02X, "
1118 "Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X\n",
1119 offset, reg, shift, srcmask, crtcport, crtcindex, mask);
1120
1121 data = bios_rd32(bios, reg);
1122
1123 if (shift < 0x80)
1124 data >>= shift;
1125 else
1126 data <<= (0x100 - shift);
1127
1128 data &= srcmask;
1129
1130 crtcdata = bios_idxprt_rd(bios, crtcport, crtcindex) & mask;
1131 crtcdata |= (uint8_t)data;
1132 bios_idxprt_wr(bios, crtcport, crtcindex, crtcdata);
1133
37383650 1134 return 11;
6ee73861
BS		 1135}
1136
37383650 1137static int
6ee73861
BS		 1138init_not(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1139{
1140 /*
1141 * INIT_NOT opcode: 0x38 ('8')
1142 *
1143 * offset (8 bit): opcode
1144 *
1145 * Invert the current execute / no-execute condition (i.e. "else")
1146 */
1147 if (iexec->execute)
1148 BIOSLOG(bios, "0x%04X: ------ Skipping following commands ------\n", offset);
1149 else
1150 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", offset);
1151
1152 iexec->execute = !iexec->execute;
37383650 1153 return 1;
6ee73861
BS		 1154}
1155
37383650 1156static int
6ee73861
BS		 1157init_io_flag_condition(struct nvbios *bios, uint16_t offset,
1158 struct init_exec *iexec)
1159{
1160 /*
1161 * INIT_IO_FLAG_CONDITION opcode: 0x39 ('9')
1162 *
1163 * offset (8 bit): opcode
1164 * offset + 1 (8 bit): condition number
1165 *
1166 * Check condition "condition number" in the IO flag condition table.
1167 * If condition not met skip subsequent opcodes until condition is
1168 * inverted (INIT_NOT), or we hit INIT_RESUME
1169 */
1170
1171 uint8_t cond = bios->data[offset + 1];
1172
1173 if (!iexec->execute)
37383650 1174 return 2;
6ee73861
BS		 1175
1176 if (io_flag_condition_met(bios, offset, cond))
1177 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
1178 else {
1179 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
1180 iexec->execute = false;
1181 }
1182
37383650 1183 return 2;
6ee73861
BS		 1184}
1185
25908b77
BS		 1186static int
1187init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1188{
1189 /*
1190 * INIT_DP_CONDITION opcode: 0x3A ('')
1191 *
1192 * offset (8 bit): opcode
1193 * offset + 1 (8 bit): "sub" opcode
1194 * offset + 2 (8 bit): unknown
1195 *
1196 */
1197
1198 struct bit_displayport_encoder_table *dpe = NULL;
1199 struct dcb_entry *dcb = bios->display.output;
1200 struct drm_device *dev = bios->dev;
1201 uint8_t cond = bios->data[offset + 1];
1202 int dummy;
1203
1204 BIOSLOG(bios, "0x%04X: subop 0x%02X\n", offset, cond);
1205
1206 if (!iexec->execute)
1207 return 3;
1208
1209 dpe = nouveau_bios_dp_table(dev, dcb, &dummy);
1210 if (!dpe) {
1211 NV_ERROR(dev, "0x%04X: INIT_3A: no encoder table!!\n", offset);
1212 return -EINVAL;
1213 }
1214
1215 switch (cond) {
1216 case 0:
1217 {
1218 struct dcb_connector_table_entry *ent =
1219 &bios->dcb.connector.entry[dcb->connector];
1220
1221 if (ent->type != DCB_CONNECTOR_eDP)
1222 iexec->execute = false;
1223 }
1224 break;
1225 case 1:
1226 case 2:
1227 if (!(dpe->unknown & cond))
1228 iexec->execute = false;
1229 break;
1230 case 5:
1231 {
1232 struct nouveau_i2c_chan *auxch;
1233 int ret;
1234
1235 auxch = nouveau_i2c_find(dev, bios->display.output->i2c_index);
1236 if (!auxch)
1237 return -ENODEV;
1238
1239 ret = nouveau_dp_auxch(auxch, 9, 0xd, &cond, 1);
1240 if (ret)
1241 return ret;
1242
1243 if (cond & 1)
1244 iexec->execute = false;
1245 }
1246 break;
1247 default:
1248 NV_WARN(dev, "0x%04X: unknown INIT_3A op: %d\n", offset, cond);
1249 break;
1250 }
1251
1252 if (iexec->execute)
1253 BIOSLOG(bios, "0x%04X: continuing to execute\n", offset);
1254 else
1255 BIOSLOG(bios, "0x%04X: skipping following commands\n", offset);
1256
1257 return 3;
1258}
1259
1260static int
1261init_op_3b(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1262{
1263 /*
1264 * INIT_3B opcode: 0x3B ('')
1265 *
1266 * offset (8 bit): opcode
1267 * offset + 1 (8 bit): crtc index
1268 *
1269 */
1270
1271 uint8_t or = ffs(bios->display.output->or) - 1;
1272 uint8_t index = bios->data[offset + 1];
1273 uint8_t data;
1274
1275 if (!iexec->execute)
1276 return 2;
1277
1278 data = bios_idxprt_rd(bios, 0x3d4, index);
1279 bios_idxprt_wr(bios, 0x3d4, index, data & ~(1 << or));
1280 return 2;
1281}
1282
1283static int
1284init_op_3c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1285{
1286 /*
1287 * INIT_3C opcode: 0x3C ('')
1288 *
1289 * offset (8 bit): opcode
1290 * offset + 1 (8 bit): crtc index
1291 *
1292 */
1293
1294 uint8_t or = ffs(bios->display.output->or) - 1;
1295 uint8_t index = bios->data[offset + 1];
1296 uint8_t data;
1297
1298 if (!iexec->execute)
1299 return 2;
1300
1301 data = bios_idxprt_rd(bios, 0x3d4, index);
1302 bios_idxprt_wr(bios, 0x3d4, index, data | (1 << or));
1303 return 2;
1304}
1305
37383650 1306static int
6ee73861
BS		 1307init_idx_addr_latched(struct nvbios *bios, uint16_t offset,
1308 struct init_exec *iexec)
1309{
1310 /*
1311 * INIT_INDEX_ADDRESS_LATCHED opcode: 0x49 ('I')
1312 *
1313 * offset (8 bit): opcode
1314 * offset + 1 (32 bit): control register
1315 * offset + 5 (32 bit): data register
1316 * offset + 9 (32 bit): mask
1317 * offset + 13 (32 bit): data
1318 * offset + 17 (8 bit): count
1319 * offset + 18 (8 bit): address 1
1320 * offset + 19 (8 bit): data 1
1321 * ...
1322 *
1323 * For each of "count" address and data pairs, write "data n" to
1324 * "data register", read the current value of "control register",
1325 * and write it back once ANDed with "mask", ORed with "data",
1326 * and ORed with "address n"
1327 */
1328
1329 uint32_t controlreg = ROM32(bios->data[offset + 1]);
1330 uint32_t datareg = ROM32(bios->data[offset + 5]);
1331 uint32_t mask = ROM32(bios->data[offset + 9]);
1332 uint32_t data = ROM32(bios->data[offset + 13]);
1333 uint8_t count = bios->data[offset + 17];
37383650 1334 int len = 18 + count * 2;
6ee73861
BS		 1335 uint32_t value;
1336 int i;
1337
1338 if (!iexec->execute)
37383650 1339 return len;
6ee73861
BS		 1340
1341 BIOSLOG(bios, "0x%04X: ControlReg: 0x%08X, DataReg: 0x%08X, "
1342 "Mask: 0x%08X, Data: 0x%08X, Count: 0x%02X\n",
1343 offset, controlreg, datareg, mask, data, count);
1344
1345 for (i = 0; i < count; i++) {
1346 uint8_t instaddress = bios->data[offset + 18 + i * 2];
1347 uint8_t instdata = bios->data[offset + 19 + i * 2];
1348
1349 BIOSLOG(bios, "0x%04X: Address: 0x%02X, Data: 0x%02X\n",
1350 offset, instaddress, instdata);
1351
1352 bios_wr32(bios, datareg, instdata);
1353 value = bios_rd32(bios, controlreg) & mask;
1354 value |= data;
1355 value |= instaddress;
1356 bios_wr32(bios, controlreg, value);
1357 }
1358
37383650 1359 return len;
6ee73861
BS		 1360}
1361
37383650 1362static int
6ee73861
BS		 1363init_io_restrict_pll2(struct nvbios *bios, uint16_t offset,
1364 struct init_exec *iexec)
1365{
1366 /*
1367 * INIT_IO_RESTRICT_PLL2 opcode: 0x4A ('J')
1368 *
1369 * offset (8 bit): opcode
1370 * offset + 1 (16 bit): CRTC port
1371 * offset + 3 (8 bit): CRTC index
1372 * offset + 4 (8 bit): mask
1373 * offset + 5 (8 bit): shift
1374 * offset + 6 (8 bit): count
1375 * offset + 7 (32 bit): register
1376 * offset + 11 (32 bit): frequency 1
1377 * ...
1378 *
1379 * Starting at offset + 11 there are "count" 32 bit frequencies (kHz).
1380 * Set PLL register "register" to coefficients for frequency n,
1381 * selected by reading index "CRTC index" of "CRTC port" ANDed with
1382 * "mask" and shifted right by "shift".
1383 */
1384
1385 uint16_t crtcport = ROM16(bios->data[offset + 1]);
1386 uint8_t crtcindex = bios->data[offset + 3];
1387 uint8_t mask = bios->data[offset + 4];
1388 uint8_t shift = bios->data[offset + 5];
1389 uint8_t count = bios->data[offset + 6];
1390 uint32_t reg = ROM32(bios->data[offset + 7]);
37383650 1391 int len = 11 + count * 4;
6ee73861
BS		 1392 uint8_t config;
1393 uint32_t freq;
1394
1395 if (!iexec->execute)
37383650 1396 return len;
6ee73861
BS		 1397
1398 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
1399 "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
1400 offset, crtcport, crtcindex, mask, shift, count, reg);
1401
1402 if (!reg)
37383650 1403 return len;
6ee73861
BS		 1404
1405 config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
1406 if (config > count) {
1407 NV_ERROR(bios->dev,
1408 "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
1409 offset, config, count);
9170a824 1410 return -EINVAL;
6ee73861
BS		 1411 }
1412
1413 freq = ROM32(bios->data[offset + 11 + config * 4]);
1414
1415 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %dkHz\n",
1416 offset, reg, config, freq);
1417
1418 setPLL(bios, reg, freq);
1419
37383650 1420 return len;
6ee73861
BS		 1421}
1422
37383650 1423static int
6ee73861
BS		 1424init_pll2(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1425{
1426 /*
1427 * INIT_PLL2 opcode: 0x4B ('K')
1428 *
1429 * offset (8 bit): opcode
1430 * offset + 1 (32 bit): register
1431 * offset + 5 (32 bit): freq
1432 *
1433 * Set PLL register "register" to coefficients for frequency "freq"
1434 */
1435
1436 uint32_t reg = ROM32(bios->data[offset + 1]);
1437 uint32_t freq = ROM32(bios->data[offset + 5]);
1438
1439 if (!iexec->execute)
37383650 1440 return 9;
6ee73861
BS		 1441
1442 BIOSLOG(bios, "0x%04X: Reg: 0x%04X, Freq: %dkHz\n",
1443 offset, reg, freq);
1444
1445 setPLL(bios, reg, freq);
37383650 1446 return 9;
6ee73861
BS		 1447}
1448
37383650 1449static int
6ee73861
BS		 1450init_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1451{
1452 /*
1453 * INIT_I2C_BYTE opcode: 0x4C ('L')
1454 *
1455 * offset (8 bit): opcode
1456 * offset + 1 (8 bit): DCB I2C table entry index
1457 * offset + 2 (8 bit): I2C slave address
1458 * offset + 3 (8 bit): count
1459 * offset + 4 (8 bit): I2C register 1
1460 * offset + 5 (8 bit): mask 1
1461 * offset + 6 (8 bit): data 1
1462 * ...
1463 *
1464 * For each of "count" registers given by "I2C register n" on the device
1465 * addressed by "I2C slave address" on the I2C bus given by
1466 * "DCB I2C table entry index", read the register, AND the result with
1467 * "mask n" and OR it with "data n" before writing it back to the device
1468 */
1469
1470 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1471 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861
BS		 1472 uint8_t count = bios->data[offset + 3];
1473 struct nouveau_i2c_chan *chan;
893887ed
BS		 1474 int len = 4 + count * 3;
1475 int ret, i;
6ee73861
BS		 1476
1477 if (!iexec->execute)
37383650 1478 return len;
6ee73861
BS		 1479
1480 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1481 "Count: 0x%02X\n",
1482 offset, i2c_index, i2c_address, count);
1483
1484 chan = init_i2c_device_find(bios->dev, i2c_index);
1485 if (!chan)
9170a824 1486 return -ENODEV;
6ee73861
BS		 1487
1488 for (i = 0; i < count; i++) {
893887ed 1489 uint8_t reg = bios->data[offset + 4 + i * 3];
6ee73861
BS		 1490 uint8_t mask = bios->data[offset + 5 + i * 3];
1491 uint8_t data = bios->data[offset + 6 + i * 3];
893887ed 1492 union i2c_smbus_data val;
6ee73861 1493
893887ed
BS		 1494 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1495 I2C_SMBUS_READ, reg,
1496 I2C_SMBUS_BYTE_DATA, &val);
1497 if (ret < 0)
1498 return ret;
6ee73861
BS		 1499
1500 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
1501 "Mask: 0x%02X, Data: 0x%02X\n",
893887ed 1502 offset, reg, val.byte, mask, data);
6ee73861 1503
893887ed
BS		 1504 if (!bios->execute)
1505 continue;
6ee73861 1506
893887ed
BS		 1507 val.byte &= mask;
1508 val.byte |= data;
1509 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1510 I2C_SMBUS_WRITE, reg,
1511 I2C_SMBUS_BYTE_DATA, &val);
1512 if (ret < 0)
1513 return ret;
6ee73861
BS		 1514 }
1515
37383650 1516 return len;
6ee73861
BS		 1517}
1518
37383650 1519static int
6ee73861
BS		 1520init_zm_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1521{
1522 /*
1523 * INIT_ZM_I2C_BYTE opcode: 0x4D ('M')
1524 *
1525 * offset (8 bit): opcode
1526 * offset + 1 (8 bit): DCB I2C table entry index
1527 * offset + 2 (8 bit): I2C slave address
1528 * offset + 3 (8 bit): count
1529 * offset + 4 (8 bit): I2C register 1
1530 * offset + 5 (8 bit): data 1
1531 * ...
1532 *
1533 * For each of "count" registers given by "I2C register n" on the device
1534 * addressed by "I2C slave address" on the I2C bus given by
1535 * "DCB I2C table entry index", set the register to "data n"
1536 */
1537
1538 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1539 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861
BS		 1540 uint8_t count = bios->data[offset + 3];
1541 struct nouveau_i2c_chan *chan;
893887ed
BS		 1542 int len = 4 + count * 2;
1543 int ret, i;
6ee73861
BS		 1544
1545 if (!iexec->execute)
37383650 1546 return len;
6ee73861
BS		 1547
1548 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1549 "Count: 0x%02X\n",
1550 offset, i2c_index, i2c_address, count);
1551
1552 chan = init_i2c_device_find(bios->dev, i2c_index);
1553 if (!chan)
9170a824 1554 return -ENODEV;
6ee73861
BS		 1555
1556 for (i = 0; i < count; i++) {
893887ed
BS		 1557 uint8_t reg = bios->data[offset + 4 + i * 2];
1558 union i2c_smbus_data val;
1559
1560 val.byte = bios->data[offset + 5 + i * 2];
6ee73861
BS		 1561
1562 BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Data: 0x%02X\n",
893887ed
BS		 1563 offset, reg, val.byte);
1564
1565 if (!bios->execute)
1566 continue;
1567
1568 ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
1569 I2C_SMBUS_WRITE, reg,
1570 I2C_SMBUS_BYTE_DATA, &val);
1571 if (ret < 0)
1572 return ret;
6ee73861
BS		 1573 }
1574
37383650 1575 return len;
6ee73861
BS		 1576}
1577
37383650 1578static int
6ee73861
BS		 1579init_zm_i2c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1580{
1581 /*
1582 * INIT_ZM_I2C opcode: 0x4E ('N')
1583 *
1584 * offset (8 bit): opcode
1585 * offset + 1 (8 bit): DCB I2C table entry index
1586 * offset + 2 (8 bit): I2C slave address
1587 * offset + 3 (8 bit): count
1588 * offset + 4 (8 bit): data 1
1589 * ...
1590 *
1591 * Send "count" bytes ("data n") to the device addressed by "I2C slave
1592 * address" on the I2C bus given by "DCB I2C table entry index"
1593 */
1594
1595 uint8_t i2c_index = bios->data[offset + 1];
893887ed 1596 uint8_t i2c_address = bios->data[offset + 2] >> 1;
6ee73861 1597 uint8_t count = bios->data[offset + 3];
37383650 1598 int len = 4 + count;
6ee73861
BS		 1599 struct nouveau_i2c_chan *chan;
1600 struct i2c_msg msg;
1601 uint8_t data[256];
1602 int i;
1603
1604 if (!iexec->execute)
37383650 1605 return len;
6ee73861
BS		 1606
1607 BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
1608 "Count: 0x%02X\n",
1609 offset, i2c_index, i2c_address, count);
1610
1611 chan = init_i2c_device_find(bios->dev, i2c_index);
1612 if (!chan)
9170a824 1613 return -ENODEV;
6ee73861
BS		 1614
1615 for (i = 0; i < count; i++) {
1616 data[i] = bios->data[offset + 4 + i];
1617
1618 BIOSLOG(bios, "0x%04X: Data: 0x%02X\n", offset, data[i]);
1619 }
1620
1621 if (bios->execute) {
1622 msg.addr = i2c_address;
1623 msg.flags = 0;
1624 msg.len = count;
1625 msg.buf = data;
1626 if (i2c_transfer(&chan->adapter, &msg, 1) != 1)
9170a824 1627 return -EIO;
6ee73861
BS		 1628 }
1629
37383650 1630 return len;
6ee73861
BS		 1631}
1632
37383650 1633static int
6ee73861
BS		 1634init_tmds(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1635{
1636 /*
1637 * INIT_TMDS opcode: 0x4F ('O') (non-canon name)
1638 *
1639 * offset (8 bit): opcode
1640 * offset + 1 (8 bit): magic lookup value
1641 * offset + 2 (8 bit): TMDS address
1642 * offset + 3 (8 bit): mask
1643 * offset + 4 (8 bit): data
1644 *
1645 * Read the data reg for TMDS address "TMDS address", AND it with mask
1646 * and OR it with data, then write it back
1647 * "magic lookup value" determines which TMDS base address register is
1648 * used -- see get_tmds_index_reg()
1649 */
1650
1651 uint8_t mlv = bios->data[offset + 1];
1652 uint32_t tmdsaddr = bios->data[offset + 2];
1653 uint8_t mask = bios->data[offset + 3];
1654 uint8_t data = bios->data[offset + 4];
1655 uint32_t reg, value;
1656
1657 if (!iexec->execute)
37383650 1658 return 5;
6ee73861
BS		 1659
1660 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, TMDSAddr: 0x%02X, "
1661 "Mask: 0x%02X, Data: 0x%02X\n",
1662 offset, mlv, tmdsaddr, mask, data);
1663
1664 reg = get_tmds_index_reg(bios->dev, mlv);
1665 if (!reg)
9170a824 1666 return -EINVAL;
6ee73861
BS		 1667
1668 bios_wr32(bios, reg,
1669 tmdsaddr | NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE);
1670 value = (bios_rd32(bios, reg + 4) & mask) | data;
1671 bios_wr32(bios, reg + 4, value);
1672 bios_wr32(bios, reg, tmdsaddr);
1673
37383650 1674 return 5;
6ee73861
BS		 1675}
1676
37383650 1677static int
6ee73861
BS		 1678init_zm_tmds_group(struct nvbios *bios, uint16_t offset,
1679 struct init_exec *iexec)
1680{
1681 /*
1682 * INIT_ZM_TMDS_GROUP opcode: 0x50 ('P') (non-canon name)
1683 *
1684 * offset (8 bit): opcode
1685 * offset + 1 (8 bit): magic lookup value
1686 * offset + 2 (8 bit): count
1687 * offset + 3 (8 bit): addr 1
1688 * offset + 4 (8 bit): data 1
1689 * ...
1690 *
1691 * For each of "count" TMDS address and data pairs write "data n" to
1692 * "addr n". "magic lookup value" determines which TMDS base address
1693 * register is used -- see get_tmds_index_reg()
1694 */
1695
1696 uint8_t mlv = bios->data[offset + 1];
1697 uint8_t count = bios->data[offset + 2];
37383650 1698 int len = 3 + count * 2;
6ee73861
BS		 1699 uint32_t reg;
1700 int i;
1701
1702 if (!iexec->execute)
37383650 1703 return len;
6ee73861
BS		 1704
1705 BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, Count: 0x%02X\n",
1706 offset, mlv, count);
1707
1708 reg = get_tmds_index_reg(bios->dev, mlv);
1709 if (!reg)
9170a824 1710 return -EINVAL;
6ee73861
BS		 1711
1712 for (i = 0; i < count; i++) {
1713 uint8_t tmdsaddr = bios->data[offset + 3 + i * 2];
1714 uint8_t tmdsdata = bios->data[offset + 4 + i * 2];
1715
1716 bios_wr32(bios, reg + 4, tmdsdata);
1717 bios_wr32(bios, reg, tmdsaddr);
1718 }
1719
37383650 1720 return len;
6ee73861
BS		 1721}
1722
37383650 1723static int
6ee73861
BS		 1724init_cr_idx_adr_latch(struct nvbios *bios, uint16_t offset,
1725 struct init_exec *iexec)
1726{
1727 /*
1728 * INIT_CR_INDEX_ADDRESS_LATCHED opcode: 0x51 ('Q')
1729 *
1730 * offset (8 bit): opcode
1731 * offset + 1 (8 bit): CRTC index1
1732 * offset + 2 (8 bit): CRTC index2
1733 * offset + 3 (8 bit): baseaddr
1734 * offset + 4 (8 bit): count
1735 * offset + 5 (8 bit): data 1
1736 * ...
1737 *
1738 * For each of "count" address and data pairs, write "baseaddr + n" to
1739 * "CRTC index1" and "data n" to "CRTC index2"
1740 * Once complete, restore initial value read from "CRTC index1"
1741 */
1742 uint8_t crtcindex1 = bios->data[offset + 1];
1743 uint8_t crtcindex2 = bios->data[offset + 2];
1744 uint8_t baseaddr = bios->data[offset + 3];
1745 uint8_t count = bios->data[offset + 4];
37383650 1746 int len = 5 + count;
6ee73861
BS		 1747 uint8_t oldaddr, data;
1748 int i;
1749
1750 if (!iexec->execute)
37383650 1751 return len;
6ee73861
BS		 1752
1753 BIOSLOG(bios, "0x%04X: Index1: 0x%02X, Index2: 0x%02X, "
1754 "BaseAddr: 0x%02X, Count: 0x%02X\n",
1755 offset, crtcindex1, crtcindex2, baseaddr, count);
1756
1757 oldaddr = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex1);
1758
1759 for (i = 0; i < count; i++) {
1760 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1,
1761 baseaddr + i);
1762 data = bios->data[offset + 5 + i];
1763 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex2, data);
1764 }
1765
1766 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, oldaddr);
1767
37383650 1768 return len;
6ee73861
BS		 1769}
1770
37383650 1771static int
6ee73861
BS		 1772init_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1773{
1774 /*
1775 * INIT_CR opcode: 0x52 ('R')
1776 *
1777 * offset (8 bit): opcode
1778 * offset + 1 (8 bit): CRTC index
1779 * offset + 2 (8 bit): mask
1780 * offset + 3 (8 bit): data
1781 *
1782 * Assign the value of at "CRTC index" ANDed with mask and ORed with
1783 * data back to "CRTC index"
1784 */
1785
1786 uint8_t crtcindex = bios->data[offset + 1];
1787 uint8_t mask = bios->data[offset + 2];
1788 uint8_t data = bios->data[offset + 3];
1789 uint8_t value;
1790
1791 if (!iexec->execute)
37383650 1792 return 4;
6ee73861
BS		 1793
1794 BIOSLOG(bios, "0x%04X: Index: 0x%02X, Mask: 0x%02X, Data: 0x%02X\n",
1795 offset, crtcindex, mask, data);
1796
1797 value = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex) & mask;
1798 value |= data;
1799 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, value);
1800
37383650 1801 return 4;
6ee73861
BS		 1802}
1803
37383650 1804static int
6ee73861
BS		 1805init_zm_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1806{
1807 /*
1808 * INIT_ZM_CR opcode: 0x53 ('S')
1809 *
1810 * offset (8 bit): opcode
1811 * offset + 1 (8 bit): CRTC index
1812 * offset + 2 (8 bit): value
1813 *
1814 * Assign "value" to CRTC register with index "CRTC index".
1815 */
1816
1817 uint8_t crtcindex = ROM32(bios->data[offset + 1]);
1818 uint8_t data = bios->data[offset + 2];
1819
1820 if (!iexec->execute)
37383650 1821 return 3;
6ee73861
BS		 1822
1823 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, data);
1824
37383650 1825 return 3;
6ee73861
BS		 1826}
1827
37383650 1828static int
6ee73861
BS		 1829init_zm_cr_group(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1830{
1831 /*
1832 * INIT_ZM_CR_GROUP opcode: 0x54 ('T')
1833 *
1834 * offset (8 bit): opcode
1835 * offset + 1 (8 bit): count
1836 * offset + 2 (8 bit): CRTC index 1
1837 * offset + 3 (8 bit): value 1
1838 * ...
1839 *
1840 * For "count", assign "value n" to CRTC register with index
1841 * "CRTC index n".
1842 */
1843
1844 uint8_t count = bios->data[offset + 1];
37383650 1845 int len = 2 + count * 2;
6ee73861
BS		 1846 int i;
1847
1848 if (!iexec->execute)
37383650 1849 return len;
6ee73861
BS		 1850
1851 for (i = 0; i < count; i++)
1852 init_zm_cr(bios, offset + 2 + 2 * i - 1, iexec);
1853
37383650 1854 return len;
6ee73861
BS		 1855}
1856
37383650 1857static int
6ee73861
BS		 1858init_condition_time(struct nvbios *bios, uint16_t offset,
1859 struct init_exec *iexec)
1860{
1861 /*
1862 * INIT_CONDITION_TIME opcode: 0x56 ('V')
1863 *
1864 * offset (8 bit): opcode
1865 * offset + 1 (8 bit): condition number
1866 * offset + 2 (8 bit): retries / 50
1867 *
1868 * Check condition "condition number" in the condition table.
1869 * Bios code then sleeps for 2ms if the condition is not met, and
1870 * repeats up to "retries" times, but on one C51 this has proved
1871 * insufficient. In mmiotraces the driver sleeps for 20ms, so we do
1872 * this, and bail after "retries" times, or 2s, whichever is less.
1873 * If still not met after retries, clear execution flag for this table.
1874 */
1875
1876 uint8_t cond = bios->data[offset + 1];
1877 uint16_t retries = bios->data[offset + 2] * 50;
1878 unsigned cnt;
1879
1880 if (!iexec->execute)
37383650 1881 return 3;
6ee73861
BS		 1882
1883 if (retries > 100)
1884 retries = 100;
1885
1886 BIOSLOG(bios, "0x%04X: Condition: 0x%02X, Retries: 0x%02X\n",
1887 offset, cond, retries);
1888
1889 if (!bios->execute) /* avoid 2s delays when "faking" execution */
1890 retries = 1;
1891
1892 for (cnt = 0; cnt < retries; cnt++) {
1893 if (bios_condition_met(bios, offset, cond)) {
1894 BIOSLOG(bios, "0x%04X: Condition met, continuing\n",
1895 offset);
1896 break;
1897 } else {
1898 BIOSLOG(bios, "0x%04X: "
1899 "Condition not met, sleeping for 20ms\n",
1900 offset);
1901 msleep(20);
1902 }
1903 }
1904
1905 if (!bios_condition_met(bios, offset, cond)) {
1906 NV_WARN(bios->dev,
1907 "0x%04X: Condition still not met after %dms, "
1908 "skipping following opcodes\n", offset, 20 * retries);
1909 iexec->execute = false;
1910 }
1911
37383650 1912 return 3;
6ee73861
BS		 1913}
1914
37383650 1915static int
6ee73861
BS		 1916init_zm_reg_sequence(struct nvbios *bios, uint16_t offset,
1917 struct init_exec *iexec)
1918{
1919 /*
1920 * INIT_ZM_REG_SEQUENCE opcode: 0x58 ('X')
1921 *
1922 * offset (8 bit): opcode
1923 * offset + 1 (32 bit): base register
1924 * offset + 5 (8 bit): count
1925 * offset + 6 (32 bit): value 1
1926 * ...
1927 *
1928 * Starting at offset + 6 there are "count" 32 bit values.
1929 * For "count" iterations set "base register" + 4 * current_iteration
1930 * to "value current_iteration"
1931 */
1932
1933 uint32_t basereg = ROM32(bios->data[offset + 1]);
1934 uint32_t count = bios->data[offset + 5];
37383650 1935 int len = 6 + count * 4;
6ee73861
BS		 1936 int i;
1937
1938 if (!iexec->execute)
37383650 1939 return len;
6ee73861
BS		 1940
1941 BIOSLOG(bios, "0x%04X: BaseReg: 0x%08X, Count: 0x%02X\n",
1942 offset, basereg, count);
1943
1944 for (i = 0; i < count; i++) {
1945 uint32_t reg = basereg + i * 4;
1946 uint32_t data = ROM32(bios->data[offset + 6 + i * 4]);
1947
1948 bios_wr32(bios, reg, data);
1949 }
1950
37383650 1951 return len;
6ee73861
BS		 1952}
1953
37383650 1954static int
6ee73861
BS		 1955init_sub_direct(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1956{
1957 /*
1958 * INIT_SUB_DIRECT opcode: 0x5B ('[')
1959 *
1960 * offset (8 bit): opcode
1961 * offset + 1 (16 bit): subroutine offset (in bios)
1962 *
1963 * Calls a subroutine that will execute commands until INIT_DONE
1964 * is found.
1965 */
1966
1967 uint16_t sub_offset = ROM16(bios->data[offset + 1]);
1968
1969 if (!iexec->execute)
37383650 1970 return 3;
6ee73861
BS		 1971
1972 BIOSLOG(bios, "0x%04X: Executing subroutine at 0x%04X\n",
1973 offset, sub_offset);
1974
1975 parse_init_table(bios, sub_offset, iexec);
1976
1977 BIOSLOG(bios, "0x%04X: End of 0x%04X subroutine\n", offset, sub_offset);
1978
37383650 1979 return 3;
6ee73861
BS		 1980}
1981
37383650 1982static int
6ee73861
BS		 1983init_copy_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
1984{
1985 /*
1986 * INIT_COPY_NV_REG opcode: 0x5F ('_')
1987 *
1988 * offset (8 bit): opcode
1989 * offset + 1 (32 bit): src reg
1990 * offset + 5 (8 bit): shift
1991 * offset + 6 (32 bit): src mask
1992 * offset + 10 (32 bit): xor
1993 * offset + 14 (32 bit): dst reg
1994 * offset + 18 (32 bit): dst mask
1995 *
1996 * Shift REGVAL("src reg") right by (signed) "shift", AND result with
1997 * "src mask", then XOR with "xor". Write this OR'd with
1998 * (REGVAL("dst reg") AND'd with "dst mask") to "dst reg"
1999 */
2000
2001 uint32_t srcreg = *((uint32_t *)(&bios->data[offset + 1]));
2002 uint8_t shift = bios->data[offset + 5];
2003 uint32_t srcmask = *((uint32_t *)(&bios->data[offset + 6]));
2004 uint32_t xor = *((uint32_t *)(&bios->data[offset + 10]));
2005 uint32_t dstreg = *((uint32_t *)(&bios->data[offset + 14]));
2006 uint32_t dstmask = *((uint32_t *)(&bios->data[offset + 18]));
2007 uint32_t srcvalue, dstvalue;
2008
2009 if (!iexec->execute)
37383650 2010 return 22;
6ee73861
BS		 2011
2012 BIOSLOG(bios, "0x%04X: SrcReg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%08X, "
2013 "Xor: 0x%08X, DstReg: 0x%08X, DstMask: 0x%08X\n",
2014 offset, srcreg, shift, srcmask, xor, dstreg, dstmask);
2015
2016 srcvalue = bios_rd32(bios, srcreg);
2017
2018 if (shift < 0x80)
2019 srcvalue >>= shift;
2020 else
2021 srcvalue <<= (0x100 - shift);
2022
2023 srcvalue = (srcvalue & srcmask) ^ xor;
2024
2025 dstvalue = bios_rd32(bios, dstreg) & dstmask;
2026
2027 bios_wr32(bios, dstreg, dstvalue | srcvalue);
2028
37383650 2029 return 22;
6ee73861
BS		 2030}
2031
37383650 2032static int
6ee73861
BS		 2033init_zm_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2034{
2035 /*
2036 * INIT_ZM_INDEX_IO opcode: 0x62 ('b')
2037 *
2038 * offset (8 bit): opcode
2039 * offset + 1 (16 bit): CRTC port
2040 * offset + 3 (8 bit): CRTC index
2041 * offset + 4 (8 bit): data
2042 *
2043 * Write "data" to index "CRTC index" of "CRTC port"
2044 */
2045 uint16_t crtcport = ROM16(bios->data[offset + 1]);
2046 uint8_t crtcindex = bios->data[offset + 3];
2047 uint8_t data = bios->data[offset + 4];
2048
2049 if (!iexec->execute)
37383650 2050 return 5;
6ee73861
BS		 2051
2052 bios_idxprt_wr(bios, crtcport, crtcindex, data);
2053
37383650 2054 return 5;
6ee73861
BS		 2055}
2056
37383650 2057static int
6ee73861
BS		 2058init_compute_mem(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2059{
2060 /*
2061 * INIT_COMPUTE_MEM opcode: 0x63 ('c')
2062 *
2063 * offset (8 bit): opcode
2064 *
2065 * This opcode is meant to set NV_PFB_CFG0 (0x100200) appropriately so
2066 * that the hardware can correctly calculate how much VRAM it has
2067 * (and subsequently report that value in NV_PFB_CSTATUS (0x10020C))
2068 *
2069 * The implementation of this opcode in general consists of two parts:
2070 * 1) determination of the memory bus width
2071 * 2) determination of how many of the card's RAM pads have ICs attached
2072 *
2073 * 1) is done by a cunning combination of writes to offsets 0x1c and
2074 * 0x3c in the framebuffer, and seeing whether the written values are
2075 * read back correctly. This then affects bits 4-7 of NV_PFB_CFG0
2076 *
2077 * 2) is done by a cunning combination of writes to an offset slightly
2078 * less than the maximum memory reported by NV_PFB_CSTATUS, then seeing
2079 * if the test pattern can be read back. This then affects bits 12-15 of
2080 * NV_PFB_CFG0
2081 *
2082 * In this context a "cunning combination" may include multiple reads
2083 * and writes to varying locations, often alternating the test pattern
2084 * and 0, doubtless to make sure buffers are filled, residual charges
2085 * on tracks are removed etc.
2086 *
2087 * Unfortunately, the "cunning combination"s mentioned above, and the
2088 * changes to the bits in NV_PFB_CFG0 differ with nearly every bios
2089 * trace I have.
2090 *
2091 * Therefore, we cheat and assume the value of NV_PFB_CFG0 with which
2092 * we started was correct, and use that instead
2093 */
2094
2095 /* no iexec->execute check by design */
2096
2097 /*
2098 * This appears to be a NOP on G8x chipsets, both io logs of the VBIOS
2099 * and kmmio traces of the binary driver POSTing the card show nothing
2100 * being done for this opcode. why is it still listed in the table?!
2101 */
2102
2103 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
2104
e235c1f3 2105 if (dev_priv->card_type >= NV_40)
37383650 2106 return 1;
6ee73861
BS		 2107
2108 /*
2109 * On every card I've seen, this step gets done for us earlier in
2110 * the init scripts
2111 uint8_t crdata = bios_idxprt_rd(dev, NV_VIO_SRX, 0x01);
2112 bios_idxprt_wr(dev, NV_VIO_SRX, 0x01, crdata | 0x20);
2113 */
2114
2115 /*
2116 * This also has probably been done in the scripts, but an mmio trace of
2117 * s3 resume shows nvidia doing it anyway (unlike the NV_VIO_SRX write)
2118 */
2119 bios_wr32(bios, NV_PFB_REFCTRL, NV_PFB_REFCTRL_VALID_1);
2120
2121 /* write back the saved configuration value */
2122 bios_wr32(bios, NV_PFB_CFG0, bios->state.saved_nv_pfb_cfg0);
2123
37383650 2124 return 1;
6ee73861
BS		 2125}
2126
37383650 2127static int
6ee73861
BS		 2128init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2129{
2130 /*
2131 * INIT_RESET opcode: 0x65 ('e')
2132 *
2133 * offset (8 bit): opcode
2134 * offset + 1 (32 bit): register
2135 * offset + 5 (32 bit): value1
2136 * offset + 9 (32 bit): value2
2137 *
2138 * Assign "value1" to "register", then assign "value2" to "register"
2139 */
2140
2141 uint32_t reg = ROM32(bios->data[offset + 1]);
2142 uint32_t value1 = ROM32(bios->data[offset + 5]);
2143 uint32_t value2 = ROM32(bios->data[offset + 9]);
2144 uint32_t pci_nv_19, pci_nv_20;
2145
2146 /* no iexec->execute check by design */
2147
2148 pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19);
2149 bios_wr32(bios, NV_PBUS_PCI_NV_19, 0);
2150 bios_wr32(bios, reg, value1);
2151
2152 udelay(10);
2153
2154 bios_wr32(bios, reg, value2);
2155 bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19);
2156
2157 pci_nv_20 = bios_rd32(bios, NV_PBUS_PCI_NV_20);
2158 pci_nv_20 &= ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED; /* 0xfffffffe */
2159 bios_wr32(bios, NV_PBUS_PCI_NV_20, pci_nv_20);
2160
37383650 2161 return 13;
6ee73861
BS		 2162}
2163
37383650 2164static int
6ee73861
BS		 2165init_configure_mem(struct nvbios *bios, uint16_t offset,
2166 struct init_exec *iexec)
2167{
2168 /*
2169 * INIT_CONFIGURE_MEM opcode: 0x66 ('f')
2170 *
2171 * offset (8 bit): opcode
2172 *
2173 * Equivalent to INIT_DONE on bios version 3 or greater.
2174 * For early bios versions, sets up the memory registers, using values
2175 * taken from the memory init table
2176 */
2177
2178 /* no iexec->execute check by design */
2179
2180 uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
2181 uint16_t seqtbloffs = bios->legacy.sdr_seq_tbl_ptr, meminitdata = meminitoffs + 6;
2182 uint32_t reg, data;
2183
2184 if (bios->major_version > 2)
9170a824 2185 return -ENODEV;
6ee73861
BS		 2186
2187 bios_idxprt_wr(bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX, bios_idxprt_rd(
2188 bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX) | 0x20);
2189
2190 if (bios->data[meminitoffs] & 1)
2191 seqtbloffs = bios->legacy.ddr_seq_tbl_ptr;
2192
2193 for (reg = ROM32(bios->data[seqtbloffs]);
2194 reg != 0xffffffff;
2195 reg = ROM32(bios->data[seqtbloffs += 4])) {
2196
2197 switch (reg) {
2198 case NV_PFB_PRE:
2199 data = NV_PFB_PRE_CMD_PRECHARGE;
2200 break;
2201 case NV_PFB_PAD:
2202 data = NV_PFB_PAD_CKE_NORMAL;
2203 break;
2204 case NV_PFB_REF:
2205 data = NV_PFB_REF_CMD_REFRESH;
2206 break;
2207 default:
2208 data = ROM32(bios->data[meminitdata]);
2209 meminitdata += 4;
2210 if (data == 0xffffffff)
2211 continue;
2212 }
2213
2214 bios_wr32(bios, reg, data);
2215 }
2216
37383650 2217 return 1;
6ee73861
BS		 2218}
2219
37383650 2220static int
6ee73861
BS		 2221init_configure_clk(struct nvbios *bios, uint16_t offset,
2222 struct init_exec *iexec)
2223{
2224 /*
2225 * INIT_CONFIGURE_CLK opcode: 0x67 ('g')
2226 *
2227 * offset (8 bit): opcode
2228 *
2229 * Equivalent to INIT_DONE on bios version 3 or greater.
2230 * For early bios versions, sets up the NVClk and MClk PLLs, using
2231 * values taken from the memory init table
2232 */
2233
2234 /* no iexec->execute check by design */
2235
2236 uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
2237 int clock;
2238
2239 if (bios->major_version > 2)
9170a824 2240 return -ENODEV;
6ee73861
BS		 2241
2242 clock = ROM16(bios->data[meminitoffs + 4]) * 10;
2243 setPLL(bios, NV_PRAMDAC_NVPLL_COEFF, clock);
2244
2245 clock = ROM16(bios->data[meminitoffs + 2]) * 10;
2246 if (bios->data[meminitoffs] & 1) /* DDR */
2247 clock *= 2;
2248 setPLL(bios, NV_PRAMDAC_MPLL_COEFF, clock);
2249
37383650 2250 return 1;
6ee73861
BS		 2251}
2252
37383650 2253static int
6ee73861
BS		 2254init_configure_preinit(struct nvbios *bios, uint16_t offset,
2255 struct init_exec *iexec)
2256{
2257 /*
2258 * INIT_CONFIGURE_PREINIT opcode: 0x68 ('h')
2259 *
2260 * offset (8 bit): opcode
2261 *
2262 * Equivalent to INIT_DONE on bios version 3 or greater.
2263 * For early bios versions, does early init, loading ram and crystal
2264 * configuration from straps into CR3C
2265 */
2266
2267 /* no iexec->execute check by design */
2268
2269 uint32_t straps = bios_rd32(bios, NV_PEXTDEV_BOOT_0);
2270 uint8_t cr3c = ((straps << 2) & 0xf0) | (straps & (1 << 6));
2271
2272 if (bios->major_version > 2)
9170a824 2273 return -ENODEV;
6ee73861
BS		 2274
2275 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR,
2276 NV_CIO_CRE_SCRATCH4__INDEX, cr3c);
2277
37383650 2278 return 1;
6ee73861
BS		 2279}
2280
37383650 2281static int
6ee73861
BS		 2282init_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2283{
2284 /*
2285 * INIT_IO opcode: 0x69 ('i')
2286 *
2287 * offset (8 bit): opcode
2288 * offset + 1 (16 bit): CRTC port
2289 * offset + 3 (8 bit): mask
2290 * offset + 4 (8 bit): data
2291 *
2292 * Assign ((IOVAL("crtc port") & "mask") | "data") to "crtc port"
2293 */
2294
2295 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
2296 uint16_t crtcport = ROM16(bios->data[offset + 1]);
2297 uint8_t mask = bios->data[offset + 3];
2298 uint8_t data = bios->data[offset + 4];
2299
2300 if (!iexec->execute)
37383650 2301 return 5;
6ee73861
BS		 2302
2303 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Mask: 0x%02X, Data: 0x%02X\n",
2304 offset, crtcport, mask, data);
2305
2306 /*
2307 * I have no idea what this does, but NVIDIA do this magic sequence
2308 * in the places where this INIT_IO happens..
2309 */
2310 if (dev_priv->card_type >= NV_50 && crtcport == 0x3c3 && data == 1) {
2311 int i;
2312
2313 bios_wr32(bios, 0x614100, (bios_rd32(
2314 bios, 0x614100) & 0x0fffffff) | 0x00800000);
2315
2316 bios_wr32(bios, 0x00e18c, bios_rd32(
2317 bios, 0x00e18c) | 0x00020000);
2318
2319 bios_wr32(bios, 0x614900, (bios_rd32(
2320 bios, 0x614900) & 0x0fffffff) | 0x00800000);
2321
2322 bios_wr32(bios, 0x000200, bios_rd32(
2323 bios, 0x000200) & ~0x40000000);
2324
2325 mdelay(10);
2326
2327 bios_wr32(bios, 0x00e18c, bios_rd32(
2328 bios, 0x00e18c) & ~0x00020000);
2329
2330 bios_wr32(bios, 0x000200, bios_rd32(
2331 bios, 0x000200) | 0x40000000);
2332
2333 bios_wr32(bios, 0x614100, 0x00800018);
2334 bios_wr32(bios, 0x614900, 0x00800018);
2335
2336 mdelay(10);
2337
2338 bios_wr32(bios, 0x614100, 0x10000018);
2339 bios_wr32(bios, 0x614900, 0x10000018);
2340
2341 for (i = 0; i < 3; i++)
2342 bios_wr32(bios, 0x614280 + (i*0x800), bios_rd32(
2343 bios, 0x614280 + (i*0x800)) & 0xf0f0f0f0);
2344
2345 for (i = 0; i < 2; i++)
2346 bios_wr32(bios, 0x614300 + (i*0x800), bios_rd32(
2347 bios, 0x614300 + (i*0x800)) & 0xfffff0f0);
2348
2349 for (i = 0; i < 3; i++)
2350 bios_wr32(bios, 0x614380 + (i*0x800), bios_rd32(
2351 bios, 0x614380 + (i*0x800)) & 0xfffff0f0);
2352
2353 for (i = 0; i < 2; i++)
2354 bios_wr32(bios, 0x614200 + (i*0x800), bios_rd32(
2355 bios, 0x614200 + (i*0x800)) & 0xfffffff0);
2356
2357 for (i = 0; i < 2; i++)
2358 bios_wr32(bios, 0x614108 + (i*0x800), bios_rd32(
2359 bios, 0x614108 + (i*0x800)) & 0x0fffffff);
37383650 2360 return 5;
6ee73861
BS		 2361 }
2362
2363 bios_port_wr(bios, crtcport, (bios_port_rd(bios, crtcport) & mask) |
2364 data);
37383650 2365 return 5;
6ee73861
BS		 2366}
2367
37383650 2368static int
6ee73861
BS		 2369init_sub(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2370{
2371 /*
2372 * INIT_SUB opcode: 0x6B ('k')
2373 *
2374 * offset (8 bit): opcode
2375 * offset + 1 (8 bit): script number
2376 *
2377 * Execute script number "script number", as a subroutine
2378 */
2379
2380 uint8_t sub = bios->data[offset + 1];
2381
2382 if (!iexec->execute)
37383650 2383 return 2;
6ee73861
BS		 2384
2385 BIOSLOG(bios, "0x%04X: Calling script %d\n", offset, sub);
2386
2387 parse_init_table(bios,
2388 ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]),
2389 iexec);
2390
2391 BIOSLOG(bios, "0x%04X: End of script %d\n", offset, sub);
2392
37383650 2393 return 2;
6ee73861
BS		 2394}
2395
37383650 2396static int
6ee73861
BS		 2397init_ram_condition(struct nvbios *bios, uint16_t offset,
2398 struct init_exec *iexec)
2399{
2400 /*
2401 * INIT_RAM_CONDITION opcode: 0x6D ('m')
2402 *
2403 * offset (8 bit): opcode
2404 * offset + 1 (8 bit): mask
2405 * offset + 2 (8 bit): cmpval
2406 *
2407 * Test if (NV_PFB_BOOT_0 & "mask") equals "cmpval".
2408 * If condition not met skip subsequent opcodes until condition is
2409 * inverted (INIT_NOT), or we hit INIT_RESUME
2410 */
2411
2412 uint8_t mask = bios->data[offset + 1];
2413 uint8_t cmpval = bios->data[offset + 2];
2414 uint8_t data;
2415
2416 if (!iexec->execute)
37383650 2417 return 3;
6ee73861
BS		 2418
2419 data = bios_rd32(bios, NV_PFB_BOOT_0) & mask;
2420
2421 BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
2422 offset, data, cmpval);
2423
2424 if (data == cmpval)
2425 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
2426 else {
2427 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
2428 iexec->execute = false;
2429 }
2430
37383650 2431 return 3;
6ee73861
BS		 2432}
2433
37383650 2434static int
6ee73861
BS		 2435init_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2436{
2437 /*
2438 * INIT_NV_REG opcode: 0x6E ('n')
2439 *
2440 * offset (8 bit): opcode
2441 * offset + 1 (32 bit): register
2442 * offset + 5 (32 bit): mask
2443 * offset + 9 (32 bit): data
2444 *
2445 * Assign ((REGVAL("register") & "mask") | "data") to "register"
2446 */
2447
2448 uint32_t reg = ROM32(bios->data[offset + 1]);
2449 uint32_t mask = ROM32(bios->data[offset + 5]);
2450 uint32_t data = ROM32(bios->data[offset + 9]);
2451
2452 if (!iexec->execute)
37383650 2453 return 13;
6ee73861
BS		 2454
2455 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Mask: 0x%08X, Data: 0x%08X\n",
2456 offset, reg, mask, data);
2457
2458 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | data);
2459
37383650 2460 return 13;
6ee73861
BS		 2461}
2462
37383650 2463static int
6ee73861
BS		 2464init_macro(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2465{
2466 /*
2467 * INIT_MACRO opcode: 0x6F ('o')
2468 *
2469 * offset (8 bit): opcode
2470 * offset + 1 (8 bit): macro number
2471 *
2472 * Look up macro index "macro number" in the macro index table.
2473 * The macro index table entry has 1 byte for the index in the macro
2474 * table, and 1 byte for the number of times to repeat the macro.
2475 * The macro table entry has 4 bytes for the register address and
2476 * 4 bytes for the value to write to that register
2477 */
2478
2479 uint8_t macro_index_tbl_idx = bios->data[offset + 1];
2480 uint16_t tmp = bios->macro_index_tbl_ptr + (macro_index_tbl_idx * MACRO_INDEX_SIZE);
2481 uint8_t macro_tbl_idx = bios->data[tmp];
2482 uint8_t count = bios->data[tmp + 1];
2483 uint32_t reg, data;
2484 int i;
2485
2486 if (!iexec->execute)
37383650 2487 return 2;
6ee73861
BS		 2488
2489 BIOSLOG(bios, "0x%04X: Macro: 0x%02X, MacroTableIndex: 0x%02X, "
2490 "Count: 0x%02X\n",
2491 offset, macro_index_tbl_idx, macro_tbl_idx, count);
2492
2493 for (i = 0; i < count; i++) {
2494 uint16_t macroentryptr = bios->macro_tbl_ptr + (macro_tbl_idx + i) * MACRO_SIZE;
2495
2496 reg = ROM32(bios->data[macroentryptr]);
2497 data = ROM32(bios->data[macroentryptr + 4]);
2498
2499 bios_wr32(bios, reg, data);
2500 }
2501
37383650 2502 return 2;
6ee73861
BS		 2503}
2504
37383650 2505static int
6ee73861
BS		 2506init_done(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2507{
2508 /*
2509 * INIT_DONE opcode: 0x71 ('q')
2510 *
2511 * offset (8 bit): opcode
2512 *
2513 * End the current script
2514 */
2515
2516 /* mild retval abuse to stop parsing this table */
37383650 2517 return 0;
6ee73861
BS		 2518}
2519
37383650 2520static int
6ee73861
BS		 2521init_resume(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2522{
2523 /*
2524 * INIT_RESUME opcode: 0x72 ('r')
2525 *
2526 * offset (8 bit): opcode
2527 *
2528 * End the current execute / no-execute condition
2529 */
2530
2531 if (iexec->execute)
37383650 2532 return 1;
6ee73861
BS		 2533
2534 iexec->execute = true;
2535 BIOSLOG(bios, "0x%04X: ---- Executing following commands ----\n", offset);
2536
37383650 2537 return 1;
6ee73861
BS		 2538}
2539
37383650 2540static int
6ee73861
BS		 2541init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2542{
2543 /*
2544 * INIT_TIME opcode: 0x74 ('t')
2545 *
2546 * offset (8 bit): opcode
2547 * offset + 1 (16 bit): time
2548 *
2549 * Sleep for "time" microseconds.
2550 */
2551
2552 unsigned time = ROM16(bios->data[offset + 1]);
2553
2554 if (!iexec->execute)
37383650 2555 return 3;
6ee73861
BS		 2556
2557 BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X microseconds\n",
2558 offset, time);
2559
2560 if (time < 1000)
2561 udelay(time);
2562 else
2563 msleep((time + 900) / 1000);
2564
37383650 2565 return 3;
6ee73861
BS		 2566}
2567
37383650 2568static int
6ee73861
BS		 2569init_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2570{
2571 /*
2572 * INIT_CONDITION opcode: 0x75 ('u')
2573 *
2574 * offset (8 bit): opcode
2575 * offset + 1 (8 bit): condition number
2576 *
2577 * Check condition "condition number" in the condition table.
2578 * If condition not met skip subsequent opcodes until condition is
2579 * inverted (INIT_NOT), or we hit INIT_RESUME
2580 */
2581
2582 uint8_t cond = bios->data[offset + 1];
2583
2584 if (!iexec->execute)
37383650 2585 return 2;
6ee73861
BS		 2586
2587 BIOSLOG(bios, "0x%04X: Condition: 0x%02X\n", offset, cond);
2588
2589 if (bios_condition_met(bios, offset, cond))
2590 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
2591 else {
2592 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
2593 iexec->execute = false;
2594 }
2595
37383650 2596 return 2;
6ee73861
BS		 2597}
2598
37383650 2599static int
6ee73861
BS		 2600init_io_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2601{
2602 /*
2603 * INIT_IO_CONDITION opcode: 0x76
2604 *
2605 * offset (8 bit): opcode
2606 * offset + 1 (8 bit): condition number
2607 *
2608 * Check condition "condition number" in the io condition table.
2609 * If condition not met skip subsequent opcodes until condition is
2610 * inverted (INIT_NOT), or we hit INIT_RESUME
2611 */
2612
2613 uint8_t cond = bios->data[offset + 1];
2614
2615 if (!iexec->execute)
37383650 2616 return 2;
6ee73861
BS		 2617
2618 BIOSLOG(bios, "0x%04X: IO condition: 0x%02X\n", offset, cond);
2619
2620 if (io_condition_met(bios, offset, cond))
2621 BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
2622 else {
2623 BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
2624 iexec->execute = false;
2625 }
2626
37383650 2627 return 2;
6ee73861
BS		 2628}
2629
37383650 2630static int
6ee73861
BS		 2631init_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2632{
2633 /*
2634 * INIT_INDEX_IO opcode: 0x78 ('x')
2635 *
2636 * offset (8 bit): opcode
2637 * offset + 1 (16 bit): CRTC port
2638 * offset + 3 (8 bit): CRTC index
2639 * offset + 4 (8 bit): mask
2640 * offset + 5 (8 bit): data
2641 *
2642 * Read value at index "CRTC index" on "CRTC port", AND with "mask",
2643 * OR with "data", write-back
2644 */
2645
2646 uint16_t crtcport = ROM16(bios->data[offset + 1]);
2647 uint8_t crtcindex = bios->data[offset + 3];
2648 uint8_t mask = bios->data[offset + 4];
2649 uint8_t data = bios->data[offset + 5];
2650 uint8_t value;
2651
2652 if (!iexec->execute)
37383650 2653 return 6;
6ee73861
BS		 2654
2655 BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
2656 "Data: 0x%02X\n",
2657 offset, crtcport, crtcindex, mask, data);
2658
2659 value = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) | data;
2660 bios_idxprt_wr(bios, crtcport, crtcindex, value);
2661
37383650 2662 return 6;
6ee73861
BS		 2663}
2664
37383650 2665static int
6ee73861
BS		 2666init_pll(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2667{
2668 /*
2669 * INIT_PLL opcode: 0x79 ('y')
2670 *
2671 * offset (8 bit): opcode
2672 * offset + 1 (32 bit): register
2673 * offset + 5 (16 bit): freq
2674 *
2675 * Set PLL register "register" to coefficients for frequency (10kHz)
2676 * "freq"
2677 */
2678
2679 uint32_t reg = ROM32(bios->data[offset + 1]);
2680 uint16_t freq = ROM16(bios->data[offset + 5]);
2681
2682 if (!iexec->execute)
37383650 2683 return 7;
6ee73861
BS		 2684
2685 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Freq: %d0kHz\n", offset, reg, freq);
2686
2687 setPLL(bios, reg, freq * 10);
2688
37383650 2689 return 7;
6ee73861
BS		 2690}
2691
37383650 2692static int
6ee73861
BS		 2693init_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2694{
2695 /*
2696 * INIT_ZM_REG opcode: 0x7A ('z')
2697 *
2698 * offset (8 bit): opcode
2699 * offset + 1 (32 bit): register
2700 * offset + 5 (32 bit): value
2701 *
2702 * Assign "value" to "register"
2703 */
2704
2705 uint32_t reg = ROM32(bios->data[offset + 1]);
2706 uint32_t value = ROM32(bios->data[offset + 5]);
2707
2708 if (!iexec->execute)
37383650 2709 return 9;
6ee73861
BS		 2710
2711 if (reg == 0x000200)
2712 value |= 1;
2713
2714 bios_wr32(bios, reg, value);
2715
37383650 2716 return 9;
6ee73861
BS		 2717}
2718
37383650 2719static int
6ee73861
BS		 2720init_ram_restrict_pll(struct nvbios *bios, uint16_t offset,
2721 struct init_exec *iexec)
2722{
2723 /*
2724 * INIT_RAM_RESTRICT_PLL opcode: 0x87 ('')
2725 *
2726 * offset (8 bit): opcode
2727 * offset + 1 (8 bit): PLL type
2728 * offset + 2 (32 bit): frequency 0
2729 *
2730 * Uses the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
2731 * ram_restrict_table_ptr. The value read from there is used to select
2732 * a frequency from the table starting at 'frequency 0' to be
2733 * programmed into the PLL corresponding to 'type'.
2734 *
2735 * The PLL limits table on cards using this opcode has a mapping of
2736 * 'type' to the relevant registers.
2737 */
2738
2739 struct drm_device *dev = bios->dev;
2740 uint32_t strap = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2;
2741 uint8_t index = bios->data[bios->ram_restrict_tbl_ptr + strap];
2742 uint8_t type = bios->data[offset + 1];
2743 uint32_t freq = ROM32(bios->data[offset + 2 + (index * 4)]);
2744 uint8_t *pll_limits = &bios->data[bios->pll_limit_tbl_ptr], *entry;
37383650 2745 int len = 2 + bios->ram_restrict_group_count * 4;
6ee73861
BS		 2746 int i;
2747
2748 if (!iexec->execute)
37383650 2749 return len;
6ee73861
BS		 2750
2751 if (!bios->pll_limit_tbl_ptr || (pll_limits[0] & 0xf0) != 0x30) {
2752 NV_ERROR(dev, "PLL limits table not version 3.x\n");
37383650 2753 return len; /* deliberate, allow default clocks to remain */
6ee73861
BS		 2754 }
2755
2756 entry = pll_limits + pll_limits[1];
2757 for (i = 0; i < pll_limits[3]; i++, entry += pll_limits[2]) {
2758 if (entry[0] == type) {
2759 uint32_t reg = ROM32(entry[3]);
2760
2761 BIOSLOG(bios, "0x%04X: "
2762 "Type %02x Reg 0x%08x Freq %dKHz\n",
2763 offset, type, reg, freq);
2764
2765 setPLL(bios, reg, freq);
37383650 2766 return len;
6ee73861
BS		 2767 }
2768 }
2769
2770 NV_ERROR(dev, "PLL type 0x%02x not found in PLL limits table", type);
37383650 2771 return len;
6ee73861
BS		 2772}
2773
37383650 2774static int
6ee73861
BS		 2775init_8c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2776{
2777 /*
2778 * INIT_8C opcode: 0x8C ('')
2779 *
2780 * NOP so far....
2781 *
2782 */
2783
37383650 2784 return 1;
6ee73861
BS		 2785}
2786
37383650 2787static int
6ee73861
BS		 2788init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2789{
2790 /*
2791 * INIT_8D opcode: 0x8D ('')
2792 *
2793 * NOP so far....
2794 *
2795 */
2796
37383650 2797 return 1;
6ee73861
BS		 2798}
2799
37383650 2800static int
6ee73861
BS		 2801init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2802{
2803 /*
2804 * INIT_GPIO opcode: 0x8E ('')
2805 *
2806 * offset (8 bit): opcode
2807 *
2808 * Loop over all entries in the DCB GPIO table, and initialise
2809 * each GPIO according to various values listed in each entry
2810 */
2811
2535d71c 2812 struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
6ee73861 2813 const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
6ee73861
BS		 2814 int i;
2815
2535d71c
BS		 2816 if (dev_priv->card_type != NV_50) {
2817 NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
2818 return -ENODEV;
6ee73861
BS		 2819 }
2820
2535d71c
BS		 2821 if (!iexec->execute)
2822 return 1;
6ee73861 2823
2535d71c
BS		 2824 for (i = 0; i < bios->dcb.gpio.entries; i++) {
2825 struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
2826 uint32_t r, s, v;
6ee73861 2827
2535d71c 2828 BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
6ee73861 2829
73db4bed
BS		 2830 BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
2831 offset, gpio->tag, gpio->state_default);
2832 if (bios->execute)
2833 nv50_gpio_set(bios->dev, gpio->tag, gpio->state_default);
6ee73861 2834
45284162
BS		 2835 /* The NVIDIA binary driver doesn't appear to actually do
2836 * any of this, my VBIOS does however.
2837 */
2838 /* Not a clue, needs de-magicing */
2535d71c
BS		 2839 r = nv50_gpio_ctl[gpio->line >> 4];
2840 s = (gpio->line & 0x0f);
6ee73861 2841 v = bios_rd32(bios, r) & ~(0x00010001 << s);
2535d71c 2842 switch ((gpio->entry & 0x06000000) >> 25) {
6ee73861
BS		 2843 case 1:
2844 v |= (0x00000001 << s);
2845 break;
2846 case 2:
2847 v |= (0x00010000 << s);
2848 break;
2849 default:
2850 break;
2851 }
2852 bios_wr32(bios, r, v);
2853 }
2854
37383650 2855 return 1;
6ee73861
BS		 2856}
2857
37383650 2858static int
6ee73861
BS		 2859init_ram_restrict_zm_reg_group(struct nvbios *bios, uint16_t offset,
2860 struct init_exec *iexec)
2861{
2862 /*
2863 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode: 0x8F ('')
2864 *
2865 * offset (8 bit): opcode
2866 * offset + 1 (32 bit): reg
2867 * offset + 5 (8 bit): regincrement
2868 * offset + 6 (8 bit): count
2869 * offset + 7 (32 bit): value 1,1
2870 * ...
2871 *
2872 * Use the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
2873 * ram_restrict_table_ptr. The value read from here is 'n', and
2874 * "value 1,n" gets written to "reg". This repeats "count" times and on
2875 * each iteration 'm', "reg" increases by "regincrement" and
2876 * "value m,n" is used. The extent of n is limited by a number read
2877 * from the 'M' BIT table, herein called "blocklen"
2878 */
2879
2880 uint32_t reg = ROM32(bios->data[offset + 1]);
2881 uint8_t regincrement = bios->data[offset + 5];
2882 uint8_t count = bios->data[offset + 6];
2883 uint32_t strap_ramcfg, data;
37383650
MK		 2884 /* previously set by 'M' BIT table */
2885 uint16_t blocklen = bios->ram_restrict_group_count * 4;
2886 int len = 7 + count * blocklen;
6ee73861
BS		 2887 uint8_t index;
2888 int i;
2889
6ee73861
BS		 2890
2891 if (!iexec->execute)
37383650 2892 return len;
6ee73861
BS		 2893
2894 if (!blocklen) {
2895 NV_ERROR(bios->dev,
2896 "0x%04X: Zero block length - has the M table "
2897 "been parsed?\n", offset);
9170a824 2898 return -EINVAL;
6ee73861
BS		 2899 }
2900
2901 strap_ramcfg = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 2) & 0xf;
2902 index = bios->data[bios->ram_restrict_tbl_ptr + strap_ramcfg];
2903
2904 BIOSLOG(bios, "0x%04X: Reg: 0x%08X, RegIncrement: 0x%02X, "
2905 "Count: 0x%02X, StrapRamCfg: 0x%02X, Index: 0x%02X\n",
2906 offset, reg, regincrement, count, strap_ramcfg, index);
2907
2908 for (i = 0; i < count; i++) {
2909 data = ROM32(bios->data[offset + 7 + index * 4 + blocklen * i]);
2910
2911 bios_wr32(bios, reg, data);
2912
2913 reg += regincrement;
2914 }
2915
37383650 2916 return len;
6ee73861
BS		 2917}
2918
37383650 2919static int
6ee73861
BS		 2920init_copy_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2921{
2922 /*
2923 * INIT_COPY_ZM_REG opcode: 0x90 ('')
2924 *
2925 * offset (8 bit): opcode
2926 * offset + 1 (32 bit): src reg
2927 * offset + 5 (32 bit): dst reg
2928 *
2929 * Put contents of "src reg" into "dst reg"
2930 */
2931
2932 uint32_t srcreg = ROM32(bios->data[offset + 1]);
2933 uint32_t dstreg = ROM32(bios->data[offset + 5]);
2934
2935 if (!iexec->execute)
37383650 2936 return 9;
6ee73861
BS		 2937
2938 bios_wr32(bios, dstreg, bios_rd32(bios, srcreg));
2939
37383650 2940 return 9;
6ee73861
BS		 2941}
2942
37383650 2943static int
6ee73861
BS		 2944init_zm_reg_group_addr_latched(struct nvbios *bios, uint16_t offset,
2945 struct init_exec *iexec)
2946{
2947 /*
2948 * INIT_ZM_REG_GROUP_ADDRESS_LATCHED opcode: 0x91 ('')
2949 *
2950 * offset (8 bit): opcode
2951 * offset + 1 (32 bit): dst reg
2952 * offset + 5 (8 bit): count
2953 * offset + 6 (32 bit): data 1
2954 * ...
2955 *
2956 * For each of "count" values write "data n" to "dst reg"
2957 */
2958
2959 uint32_t reg = ROM32(bios->data[offset + 1]);
2960 uint8_t count = bios->data[offset + 5];
37383650 2961 int len = 6 + count * 4;
6ee73861
BS		 2962 int i;
2963
2964 if (!iexec->execute)
37383650 2965 return len;
6ee73861
BS		 2966
2967 for (i = 0; i < count; i++) {
2968 uint32_t data = ROM32(bios->data[offset + 6 + 4 * i]);
2969 bios_wr32(bios, reg, data);
2970 }
2971
37383650 2972 return len;
6ee73861
BS		 2973}
2974
37383650 2975static int
6ee73861
BS		 2976init_reserved(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2977{
2978 /*
2979 * INIT_RESERVED opcode: 0x92 ('')
2980 *
2981 * offset (8 bit): opcode
2982 *
2983 * Seemingly does nothing
2984 */
2985
37383650 2986 return 1;
6ee73861
BS		 2987}
2988
37383650 2989static int
6ee73861
BS		 2990init_96(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
2991{
2992 /*
2993 * INIT_96 opcode: 0x96 ('')
2994 *
2995 * offset (8 bit): opcode
2996 * offset + 1 (32 bit): sreg
2997 * offset + 5 (8 bit): sshift
2998 * offset + 6 (8 bit): smask
2999 * offset + 7 (8 bit): index
3000 * offset + 8 (32 bit): reg
3001 * offset + 12 (32 bit): mask
3002 * offset + 16 (8 bit): shift
3003 *
3004 */
3005
3006 uint16_t xlatptr = bios->init96_tbl_ptr + (bios->data[offset + 7] * 2);
3007 uint32_t reg = ROM32(bios->data[offset + 8]);
3008 uint32_t mask = ROM32(bios->data[offset + 12]);
3009 uint32_t val;
3010
3011 val = bios_rd32(bios, ROM32(bios->data[offset + 1]));
3012 if (bios->data[offset + 5] < 0x80)
3013 val >>= bios->data[offset + 5];
3014 else
3015 val <<= (0x100 - bios->data[offset + 5]);
3016 val &= bios->data[offset + 6];
3017
3018 val = bios->data[ROM16(bios->data[xlatptr]) + val];
3019 val <<= bios->data[offset + 16];
3020
3021 if (!iexec->execute)
37383650 3022 return 17;
6ee73861
BS		 3023
3024 bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | val);
37383650 3025 return 17;
6ee73861
BS		 3026}
3027
37383650 3028static int
6ee73861
BS		 3029init_97(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3030{
3031 /*
3032 * INIT_97 opcode: 0x97 ('')
3033 *
3034 * offset (8 bit): opcode
3035 * offset + 1 (32 bit): register
3036 * offset + 5 (32 bit): mask
3037 * offset + 9 (32 bit): value
3038 *
3039 * Adds "value" to "register" preserving the fields specified
3040 * by "mask"
3041 */
3042
3043 uint32_t reg = ROM32(bios->data[offset + 1]);
3044 uint32_t mask = ROM32(bios->data[offset + 5]);
3045 uint32_t add = ROM32(bios->data[offset + 9]);
3046 uint32_t val;
3047
3048 val = bios_rd32(bios, reg);
3049 val = (val & mask) | ((val + add) & ~mask);
3050
3051 if (!iexec->execute)
37383650 3052 return 13;
6ee73861
BS		 3053
3054 bios_wr32(bios, reg, val);
37383650 3055 return 13;
6ee73861
BS		 3056}
3057
37383650 3058static int
6ee73861
BS		 3059init_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3060{
3061 /*
3062 * INIT_AUXCH opcode: 0x98 ('')
3063 *
3064 * offset (8 bit): opcode
3065 * offset + 1 (32 bit): address
3066 * offset + 5 (8 bit): count
3067 * offset + 6 (8 bit): mask 0
3068 * offset + 7 (8 bit): data 0
3069 * ...
3070 *
3071 */
3072
3073 struct drm_device *dev = bios->dev;
3074 struct nouveau_i2c_chan *auxch;
3075 uint32_t addr = ROM32(bios->data[offset + 1]);
37383650
MK		 3076 uint8_t count = bios->data[offset + 5];
3077 int len = 6 + count * 2;
6ee73861
BS		 3078 int ret, i;
3079
3080 if (!bios->display.output) {
3081 NV_ERROR(dev, "INIT_AUXCH: no active output\n");
9170a824 3082 return -EINVAL;
6ee73861
BS		 3083 }
3084
3085 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
3086 if (!auxch) {
3087 NV_ERROR(dev, "INIT_AUXCH: couldn't get auxch %d\n",
3088 bios->display.output->i2c_index);
9170a824 3089 return -ENODEV;
6ee73861
BS		 3090 }
3091
3092 if (!iexec->execute)
37383650 3093 return len;
6ee73861
BS		 3094
3095 offset += 6;
37383650 3096 for (i = 0; i < count; i++, offset += 2) {
6ee73861
BS		 3097 uint8_t data;
3098
3099 ret = nouveau_dp_auxch(auxch, 9, addr, &data, 1);
3100 if (ret) {
3101 NV_ERROR(dev, "INIT_AUXCH: rd auxch fail %d\n", ret);
9170a824 3102 return ret;
6ee73861
BS		 3103 }
3104
3105 data &= bios->data[offset + 0];
3106 data |= bios->data[offset + 1];
3107
3108 ret = nouveau_dp_auxch(auxch, 8, addr, &data, 1);
3109 if (ret) {
3110 NV_ERROR(dev, "INIT_AUXCH: wr auxch fail %d\n", ret);
9170a824 3111 return ret;
6ee73861
BS		 3112 }
3113 }
3114
37383650 3115 return len;
6ee73861
BS		 3116}
3117
37383650 3118static int
6ee73861
BS		 3119init_zm_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
3120{
3121 /*
3122 * INIT_ZM_AUXCH opcode: 0x99 ('')
3123 *
3124 * offset (8 bit): opcode
3125 * offset + 1 (32 bit): address
3126 * offset + 5 (8 bit): count
3127 * offset + 6 (8 bit): data 0
3128 * ...
3129 *
3130 */
3131
3132 struct drm_device *dev = bios->dev;
3133 struct nouveau_i2c_chan *auxch;
3134 uint32_t addr = ROM32(bios->data[offset + 1]);
37383650
MK		 3135 uint8_t count = bios->data[offset + 5];
3136 int len = 6 + count;
6ee73861
BS		 3137 int ret, i;
3138
3139 if (!bios->display.output) {
3140 NV_ERROR(dev, "INIT_ZM_AUXCH: no active output\n");
9170a824 3141 return -EINVAL;
6ee73861
BS		 3142 }
3143
3144 auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
3145 if (!auxch) {
3146 NV_ERROR(dev, "INIT_ZM_AUXCH: couldn't get auxch %d\n",
3147 bios->display.output->i2c_index);
9170a824 3148 return -ENODEV;
6ee73861
BS		 3149 }
3150
3151 if (!iexec->execute)
37383650 3152 return len;
6ee73861
BS		 3153
3154 offset += 6;
37383650 3155 for (i = 0; i < count; i++, offset++) {
6ee73861
BS		 3156 ret = nouveau_dp_auxch(auxch, 8, addr, &bios->data[offset], 1);
3157 if (ret) {
3158 NV_ERROR(dev, "INIT_ZM_AUXCH: wr auxch fail %d\n", ret);
9170a824 3159 return ret;
6ee73861
BS		 3160 }
3161 }
3162
37383650 3163 return len;
6ee73861
BS		 3164}
3165
3166static struct init_tbl_entry itbl_entry[] = {
3167 /* command name , id , length , offset , mult , command handler */
3168 /* INIT_PROG (0x31, 15, 10, 4) removed due to no example of use */
37383650
MK		 3169 { "INIT_IO_RESTRICT_PROG" , 0x32, init_io_restrict_prog },
3170 { "INIT_REPEAT" , 0x33, init_repeat },
3171 { "INIT_IO_RESTRICT_PLL" , 0x34, init_io_restrict_pll },
3172 { "INIT_END_REPEAT" , 0x36, init_end_repeat },
3173 { "INIT_COPY" , 0x37, init_copy },
3174 { "INIT_NOT" , 0x38, init_not },
3175 { "INIT_IO_FLAG_CONDITION" , 0x39, init_io_flag_condition },
25908b77
BS		 3176 { "INIT_DP_CONDITION" , 0x3A, init_dp_condition },
3177 { "INIT_OP_3B" , 0x3B, init_op_3b },
3178 { "INIT_OP_3C" , 0x3C, init_op_3c },
37383650
MK		 3179 { "INIT_INDEX_ADDRESS_LATCHED" , 0x49, init_idx_addr_latched },
3180 { "INIT_IO_RESTRICT_PLL2" , 0x4A, init_io_restrict_pll2 },
3181 { "INIT_PLL2" , 0x4B, init_pll2 },
3182 { "INIT_I2C_BYTE" , 0x4C, init_i2c_byte },
3183 { "INIT_ZM_I2C_BYTE" , 0x4D, init_zm_i2c_byte },
3184 { "INIT_ZM_I2C" , 0x4E, init_zm_i2c },
3185 { "INIT_TMDS" , 0x4F, init_tmds },
3186 { "INIT_ZM_TMDS_GROUP" , 0x50, init_zm_tmds_group },
3187 { "INIT_CR_INDEX_ADDRESS_LATCHED" , 0x51, init_cr_idx_adr_latch },
3188 { "INIT_CR" , 0x52, init_cr },
3189 { "INIT_ZM_CR" , 0x53, init_zm_cr },
3190 { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group },
3191 { "INIT_CONDITION_TIME" , 0x56, init_condition_time },
3192 { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
6ee73861 3193 /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
37383650
MK		 3194 { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },
3195 { "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg },
3196 { "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io },
3197 { "INIT_COMPUTE_MEM" , 0x63, init_compute_mem },
3198 { "INIT_RESET" , 0x65, init_reset },
3199 { "INIT_CONFIGURE_MEM" , 0x66, init_configure_mem },
3200 { "INIT_CONFIGURE_CLK" , 0x67, init_configure_clk },
3201 { "INIT_CONFIGURE_PREINIT" , 0x68, init_configure_preinit },
3202 { "INIT_IO" , 0x69, init_io },
3203 { "INIT_SUB" , 0x6B, init_sub },
3204 { "INIT_RAM_CONDITION" , 0x6D, init_ram_condition },
3205 { "INIT_NV_REG" , 0x6E, init_nv_reg },
3206 { "INIT_MACRO" , 0x6F, init_macro },
3207 { "INIT_DONE" , 0x71, init_done },
3208 { "INIT_RESUME" , 0x72, init_resume },
6ee73861 3209 /* INIT_RAM_CONDITION2 (0x73, 9, 0, 0) removed due to no example of use */
37383650
MK		 3210 { "INIT_TIME" , 0x74, init_time },
3211 { "INIT_CONDITION" , 0x75, init_condition },
3212 { "INIT_IO_CONDITION" , 0x76, init_io_condition },
3213 { "INIT_INDEX_IO" , 0x78, init_index_io },
3214 { "INIT_PLL" , 0x79, init_pll },
3215 { "INIT_ZM_REG" , 0x7A, init_zm_reg },
3216 { "INIT_RAM_RESTRICT_PLL" , 0x87, init_ram_restrict_pll },
3217 { "INIT_8C" , 0x8C, init_8c },
3218 { "INIT_8D" , 0x8D, init_8d },
3219 { "INIT_GPIO" , 0x8E, init_gpio },
3220 { "INIT_RAM_RESTRICT_ZM_REG_GROUP" , 0x8F, init_ram_restrict_zm_reg_group },
3221 { "INIT_COPY_ZM_REG" , 0x90, init_copy_zm_reg },
3222 { "INIT_ZM_REG_GROUP_ADDRESS_LATCHED" , 0x91, init_zm_reg_group_addr_latched },
3223 { "INIT_RESERVED" , 0x92, init_reserved },
3224 { "INIT_96" , 0x96, init_96 },
3225 { "INIT_97" , 0x97, init_97 },
3226 { "INIT_AUXCH" , 0x98, init_auxch },
3227 { "INIT_ZM_AUXCH" , 0x99, init_zm_auxch },
3228 { NULL , 0 , NULL }
6ee73861
BS		 3229};
3230
6ee73861
BS		 3231#define MAX_TABLE_OPS 1000
3232
3233static int
3234parse_init_table(struct nvbios *bios, unsigned int offset,
3235 struct init_exec *iexec)
3236{
3237 /*
3238 * Parses all commands in an init table.
3239 *
3240 * We start out executing all commands found in the init table. Some
3241 * opcodes may change the status of iexec->execute to SKIP, which will
3242 * cause the following opcodes to perform no operation until the value
3243 * is changed back to EXECUTE.
3244 */
3245
92b96187 3246 int count = 0, i, ret;
6ee73861
BS		 3247 uint8_t id;
3248
3249 /*
3250 * Loop until INIT_DONE causes us to break out of the loop
3251 * (or until offset > bios length just in case... )
3252 * (and no more than MAX_TABLE_OPS iterations, just in case... )
3253 */
3254 while ((offset < bios->length) && (count++ < MAX_TABLE_OPS)) {
3255 id = bios->data[offset];
3256
3257 /* Find matching id in itbl_entry */
3258 for (i = 0; itbl_entry[i].name && (itbl_entry[i].id != id); i++)
3259 ;
3260
92b96187 3261 if (!itbl_entry[i].name) {
6ee73861
BS		 3262 NV_ERROR(bios->dev,
3263 "0x%04X: Init table command not found: "
3264 "0x%02X\n", offset, id);
3265 return -ENOENT;
3266 }
92b96187
BS		 3267
3268 BIOSLOG(bios, "0x%04X: [ (0x%02X) - %s ]\n", offset,
3269 itbl_entry[i].id, itbl_entry[i].name);
3270
3271 /* execute eventual command handler */
3272 ret = (*itbl_entry[i].handler)(bios, offset, iexec);
3273 if (ret < 0) {
3274 NV_ERROR(bios->dev, "0x%04X: Failed parsing init "
3275 "table opcode: %s %d\n", offset,
3276 itbl_entry[i].name, ret);
3277 }
3278
3279 if (ret <= 0)
3280 break;
3281
3282 /*
3283 * Add the offset of the current command including all data
3284 * of that command. The offset will then be pointing on the
3285 * next op code.
3286 */
3287 offset += ret;
6ee73861
BS		 3288 }
3289
3290 if (offset >= bios->length)
3291 NV_WARN(bios->dev,
3292 "Offset 0x%04X greater than known bios image length. "
3293 "Corrupt image?\n", offset);
3294 if (count >= MAX_TABLE_OPS)
3295 NV_WARN(bios->dev,
3296 "More than %d opcodes to a table is unlikely, "
3297 "is the bios image corrupt?\n", MAX_TABLE_OPS);
3298
3299 return 0;
3300}
3301
3302static void
3303parse_init_tables(struct nvbios *bios)
3304{
3305 /* Loops and calls parse_init_table() for each present table. */
3306
3307 int i = 0;
3308 uint16_t table;
3309 struct init_exec iexec = {true, false};
3310
3311 if (bios->old_style_init) {
3312 if (bios->init_script_tbls_ptr)
3313 parse_init_table(bios, bios->init_script_tbls_ptr, &iexec);
3314 if (bios->extra_init_script_tbl_ptr)
3315 parse_init_table(bios, bios->extra_init_script_tbl_ptr, &iexec);
3316
3317 return;
3318 }
3319
3320 while ((table = ROM16(bios->data[bios->init_script_tbls_ptr + i]))) {
3321 NV_INFO(bios->dev,
3322 "Parsing VBIOS init table %d at offset 0x%04X\n",
3323 i / 2, table);
3324 BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", table);
3325
3326 parse_init_table(bios, table, &iexec);
3327 i += 2;
3328 }
3329}
3330
3331static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
3332{
3333 int compare_record_len, i = 0;
3334 uint16_t compareclk, scriptptr = 0;
3335
3336 if (bios->major_version < 5) /* pre BIT */
3337 compare_record_len = 3;
3338 else
3339 compare_record_len = 4;
3340
3341 do {
3342 compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
3343 if (pxclk >= compareclk * 10) {
3344 if (bios->major_version < 5) {
3345 uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
3346 scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]);
3347 } else
3348 scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
3349 break;
3350 }
3351 i++;
3352 } while (compareclk);
3353
3354 return scriptptr;
3355}
3356
3357static void
3358run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
3359 struct dcb_entry *dcbent, int head, bool dl)
3360{
3361 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3362 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3363 struct init_exec iexec = {true, false};
3364
3365 NV_TRACE(dev, "0x%04X: Parsing digital output script table\n",
3366 scriptptr);
3367 bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_44,
3368 head ? NV_CIO_CRE_44_HEADB : NV_CIO_CRE_44_HEADA);
3369 /* note: if dcb entries have been merged, index may be misleading */
3370 NVWriteVgaCrtc5758(dev, head, 0, dcbent->index);
3371 parse_init_table(bios, scriptptr, &iexec);
3372
3373 nv04_dfp_bind_head(dev, dcbent, head, dl);
3374}
3375
3376static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script)
3377{
3378 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3379 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3380 uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & OUTPUT_C ? 1 : 0);
3381 uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]);
3382
3383 if (!bios->fp.xlated_entry || !sub || !scriptofs)
3384 return -EINVAL;
3385
3386 run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
3387
3388 if (script == LVDS_PANEL_OFF) {
3389 /* off-on delay in ms */
3390 msleep(ROM16(bios->data[bios->fp.xlated_entry + 7]));
3391 }
3392#ifdef __powerpc__
3393 /* Powerbook specific quirks */
3d9aefb8
FJ		 3394 if ((dev->pci_device & 0xffff) == 0x0179 ||
3395 (dev->pci_device & 0xffff) == 0x0189 ||
3396 (dev->pci_device & 0xffff) == 0x0329) {
3397 if (script == LVDS_RESET) {
3398 nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72);
3399
3400 } else if (script == LVDS_PANEL_ON) {
3401 bios_wr32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL,
3402 bios_rd32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL)
3403 | (1 << 31));
3404 bios_wr32(bios, NV_PCRTC_GPIO_EXT,
3405 bios_rd32(bios, NV_PCRTC_GPIO_EXT) | 1);
3406
3407 } else if (script == LVDS_PANEL_OFF) {
3408 bios_wr32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL,
3409 bios_rd32(bios, NV_PBUS_DEBUG_DUALHEAD_CTL)
3410 & ~(1 << 31));
3411 bios_wr32(bios, NV_PCRTC_GPIO_EXT,
3412 bios_rd32(bios, NV_PCRTC_GPIO_EXT) & ~3);
6ee73861
BS		 3413 }
3414 }
3415#endif
3416
3417 return 0;
3418}
3419
3420static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
3421{
3422 /*
3423 * The BIT LVDS table's header has the information to setup the
3424 * necessary registers. Following the standard 4 byte header are:
3425 * A bitmask byte and a dual-link transition pxclk value for use in
3426 * selecting the init script when not using straps; 4 script pointers
3427 * for panel power, selected by output and on/off; and 8 table pointers
3428 * for panel init, the needed one determined by output, and bits in the
3429 * conf byte. These tables are similar to the TMDS tables, consisting
3430 * of a list of pxclks and script pointers.
3431 */
3432 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3433 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3434 unsigned int outputset = (dcbent->or == 4) ? 1 : 0;
3435 uint16_t scriptptr = 0, clktable;
6ee73861
BS		 3436
3437 /*
3438 * For now we assume version 3.0 table - g80 support will need some
3439 * changes
3440 */
3441
3442 switch (script) {
3443 case LVDS_INIT:
3444 return -ENOSYS;
3445 case LVDS_BACKLIGHT_ON:
3446 case LVDS_PANEL_ON:
3447 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]);
3448 break;
3449 case LVDS_BACKLIGHT_OFF:
3450 case LVDS_PANEL_OFF:
3451 scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]);
3452 break;
3453 case LVDS_RESET:
f3bbb9cc
BS		 3454 clktable = bios->fp.lvdsmanufacturerpointer + 15;
3455 if (dcbent->or == 4)
3456 clktable += 8;
3457
6ee73861
BS		 3458 if (dcbent->lvdsconf.use_straps_for_mode) {
3459 if (bios->fp.dual_link)
f3bbb9cc
BS		 3460 clktable += 4;
3461 if (bios->fp.if_is_24bit)
3462 clktable += 2;
6ee73861
BS		 3463 } else {
3464 /* using EDID */
f3bbb9cc 3465 int cmpval_24bit = (dcbent->or == 4) ? 4 : 1;
6ee73861
BS		 3466
3467 if (bios->fp.dual_link) {
f3bbb9cc
BS		 3468 clktable += 4;
3469 cmpval_24bit <<= 1;
6ee73861 3470 }
f3bbb9cc
BS		 3471
3472 if (bios->fp.strapless_is_24bit & cmpval_24bit)
3473 clktable += 2;
6ee73861
BS		 3474 }
3475
f3bbb9cc 3476 clktable = ROM16(bios->data[clktable]);
6ee73861
BS		 3477 if (!clktable) {
3478 NV_ERROR(dev, "Pixel clock comparison table not found\n");
3479 return -ENOENT;
3480 }
3481 scriptptr = clkcmptable(bios, clktable, pxclk);
3482 }
3483
3484 if (!scriptptr) {
3485 NV_ERROR(dev, "LVDS output init script not found\n");
3486 return -ENOENT;
3487 }
3488 run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
3489
3490 return 0;
3491}
3492
3493int call_lvds_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
3494{
3495 /*
3496 * LVDS operations are multiplexed in an effort to present a single API
3497 * which works with two vastly differing underlying structures.
3498 * This acts as the demux
3499 */
3500
3501 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3502 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3503 uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
3504 uint32_t sel_clk_binding, sel_clk;
3505 int ret;
3506
3507 if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
3508 (lvds_ver >= 0x30 && script == LVDS_INIT))
3509 return 0;
3510
3511 if (!bios->fp.lvds_init_run) {
3512 bios->fp.lvds_init_run = true;
3513 call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
3514 }
3515
3516 if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
3517 call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
3518 if (script == LVDS_RESET && bios->fp.power_off_for_reset)
3519 call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
3520
3521 NV_TRACE(dev, "Calling LVDS script %d:\n", script);
3522
3523 /* don't let script change pll->head binding */
3524 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
3525
3526 if (lvds_ver < 0x30)
3527 ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
3528 else
3529 ret = run_lvds_table(dev, dcbent, head, script, pxclk);
3530
3531 bios->fp.last_script_invoc = (script << 1 | head);
3532
3533 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
3534 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
3535 /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
3536 nvWriteMC(dev, NV_PBUS_POWERCTRL_2, 0);
3537
3538 return ret;
3539}
3540
3541struct lvdstableheader {
3542 uint8_t lvds_ver, headerlen, recordlen;
3543};
3544
3545static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
3546{
3547 /*
3548 * BMP version (0xa) LVDS table has a simple header of version and
3549 * record length. The BIT LVDS table has the typical BIT table header:
3550 * version byte, header length byte, record length byte, and a byte for
3551 * the maximum number of records that can be held in the table.
3552 */
3553
3554 uint8_t lvds_ver, headerlen, recordlen;
3555
3556 memset(lth, 0, sizeof(struct lvdstableheader));
3557
3558 if (bios->fp.lvdsmanufacturerpointer == 0x0) {
3559 NV_ERROR(dev, "Pointer to LVDS manufacturer table invalid\n");
3560 return -EINVAL;
3561 }
3562
3563 lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
3564
3565 switch (lvds_ver) {
3566 case 0x0a: /* pre NV40 */
3567 headerlen = 2;
3568 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
3569 break;
3570 case 0x30: /* NV4x */
3571 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
3572 if (headerlen < 0x1f) {
3573 NV_ERROR(dev, "LVDS table header not understood\n");
3574 return -EINVAL;
3575 }
3576 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
3577 break;
3578 case 0x40: /* G80/G90 */
3579 headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
3580 if (headerlen < 0x7) {
3581 NV_ERROR(dev, "LVDS table header not understood\n");
3582 return -EINVAL;
3583 }
3584 recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
3585 break;
3586 default:
3587 NV_ERROR(dev,
3588 "LVDS table revision %d.%d not currently supported\n",
3589 lvds_ver >> 4, lvds_ver & 0xf);
3590 return -ENOSYS;
3591 }
3592
3593 lth->lvds_ver = lvds_ver;
3594 lth->headerlen = headerlen;
3595 lth->recordlen = recordlen;
3596
3597 return 0;
3598}
3599
3600static int
3601get_fp_strap(struct drm_device *dev, struct nvbios *bios)
3602{
3603 struct drm_nouveau_private *dev_priv = dev->dev_private;
3604
3605 /*
3606 * The fp strap is normally dictated by the "User Strap" in
3607 * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the
3608 * Internal_Flags struct at 0x48 is set, the user strap gets overriden
3609 * by the PCI subsystem ID during POST, but not before the previous user
3610 * strap has been committed to CR58 for CR57=0xf on head A, which may be
3611 * read and used instead
3612 */
3613
3614 if (bios->major_version < 5 && bios->data[0x48] & 0x4)
3615 return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
3616
3617 if (dev_priv->card_type >= NV_50)
3618 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
3619 else
3620 return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 16) & 0xf;
3621}
3622
3623static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
3624{
3625 uint8_t *fptable;
3626 uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex;
3627 int ret, ofs, fpstrapping;
3628 struct lvdstableheader lth;
3629
3630 if (bios->fp.fptablepointer == 0x0) {
3631 /* Apple cards don't have the fp table; the laptops use DDC */
3632 /* The table is also missing on some x86 IGPs */
3633#ifndef __powerpc__
3634 NV_ERROR(dev, "Pointer to flat panel table invalid\n");
3635#endif
04a39c57 3636 bios->digital_min_front_porch = 0x4b;
6ee73861
BS		 3637 return 0;
3638 }
3639
3640 fptable = &bios->data[bios->fp.fptablepointer];
3641 fptable_ver = fptable[0];
3642
3643 switch (fptable_ver) {
3644 /*
3645 * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no
3646 * version field, and miss one of the spread spectrum/PWM bytes.
3647 * This could affect early GF2Go parts (not seen any appropriate ROMs
3648 * though). Here we assume that a version of 0x05 matches this case
3649 * (combining with a BMP version check would be better), as the
3650 * common case for the panel type field is 0x0005, and that is in
3651 * fact what we are reading the first byte of.
3652 */
3653 case 0x05: /* some NV10, 11, 15, 16 */
3654 recordlen = 42;
3655 ofs = -1;
3656 break;
3657 case 0x10: /* some NV15/16, and NV11+ */
3658 recordlen = 44;
3659 ofs = 0;
3660 break;
3661 case 0x20: /* NV40+ */
3662 headerlen = fptable[1];
3663 recordlen = fptable[2];
3664 fpentries = fptable[3];
3665 /*
3666 * fptable[4] is the minimum
3667 * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap
3668 */
04a39c57 3669 bios->digital_min_front_porch = fptable[4];
6ee73861
BS		 3670 ofs = -7;
3671 break;
3672 default:
3673 NV_ERROR(dev,
3674 "FP table revision %d.%d not currently supported\n",
3675 fptable_ver >> 4, fptable_ver & 0xf);
3676 return -ENOSYS;
3677 }
3678
3679 if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
3680 return 0;
3681
3682 ret = parse_lvds_manufacturer_table_header(dev, bios, &lth);
3683 if (ret)
3684 return ret;
3685
3686 if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) {
3687 bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
3688 lth.headerlen + 1;
3689 bios->fp.xlatwidth = lth.recordlen;
3690 }
3691 if (bios->fp.fpxlatetableptr == 0x0) {
3692 NV_ERROR(dev, "Pointer to flat panel xlat table invalid\n");
3693 return -EINVAL;
3694 }
3695
3696 fpstrapping = get_fp_strap(dev, bios);
3697
3698 fpindex = bios->data[bios->fp.fpxlatetableptr +
3699 fpstrapping * bios->fp.xlatwidth];
3700
3701 if (fpindex > fpentries) {
3702 NV_ERROR(dev, "Bad flat panel table index\n");
3703 return -ENOENT;
3704 }
3705
3706 /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
3707 if (lth.lvds_ver > 0x10)
04a39c57 3708 bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf;
6ee73861
BS		 3709
3710 /*
3711 * If either the strap or xlated fpindex value are 0xf there is no
3712 * panel using a strap-derived bios mode present. this condition
3713 * includes, but is different from, the DDC panel indicator above
3714 */
3715 if (fpstrapping == 0xf || fpindex == 0xf)
3716 return 0;
3717
3718 bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
3719 recordlen * fpindex + ofs;
3720
3721 NV_TRACE(dev, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n",
3722 ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1,
3723 ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1,
3724 ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10);
3725
3726 return 0;
3727}
3728
3729bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
3730{
3731 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3732 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3733 uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
3734
3735 if (!mode) /* just checking whether we can produce a mode */
3736 return bios->fp.mode_ptr;
3737
3738 memset(mode, 0, sizeof(struct drm_display_mode));
3739 /*
3740 * For version 1.0 (version in byte 0):
3741 * bytes 1-2 are "panel type", including bits on whether Colour/mono,
3742 * single/dual link, and type (TFT etc.)
3743 * bytes 3-6 are bits per colour in RGBX
3744 */
3745 mode->clock = ROM16(mode_entry[7]) * 10;
3746 /* bytes 9-10 is HActive */
3747 mode->hdisplay = ROM16(mode_entry[11]) + 1;
3748 /*
3749 * bytes 13-14 is HValid Start
3750 * bytes 15-16 is HValid End
3751 */
3752 mode->hsync_start = ROM16(mode_entry[17]) + 1;
3753 mode->hsync_end = ROM16(mode_entry[19]) + 1;
3754 mode->htotal = ROM16(mode_entry[21]) + 1;
3755 /* bytes 23-24, 27-30 similarly, but vertical */
3756 mode->vdisplay = ROM16(mode_entry[25]) + 1;
3757 mode->vsync_start = ROM16(mode_entry[31]) + 1;
3758 mode->vsync_end = ROM16(mode_entry[33]) + 1;
3759 mode->vtotal = ROM16(mode_entry[35]) + 1;
3760 mode->flags |= (mode_entry[37] & 0x10) ?
3761 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
3762 mode->flags |= (mode_entry[37] & 0x1) ?
3763 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
3764 /*
3765 * bytes 38-39 relate to spread spectrum settings
3766 * bytes 40-43 are something to do with PWM
3767 */
3768
3769 mode->status = MODE_OK;
3770 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
3771 drm_mode_set_name(mode);
3772 return bios->fp.mode_ptr;
3773}
3774
3775int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
3776{
3777 /*
3778 * The LVDS table header is (mostly) described in
3779 * parse_lvds_manufacturer_table_header(): the BIT header additionally
3780 * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if
3781 * straps are not being used for the panel, this specifies the frequency
3782 * at which modes should be set up in the dual link style.
3783 *
3784 * Following the header, the BMP (ver 0xa) table has several records,
3ad2f3fb 3785 * indexed by a separate xlat table, indexed in turn by the fp strap in
6ee73861
BS		 3786 * EXTDEV_BOOT. Each record had a config byte, followed by 6 script
3787 * numbers for use by INIT_SUB which controlled panel init and power,
3788 * and finally a dword of ms to sleep between power off and on
3789 * operations.
3790 *
3791 * In the BIT versions, the table following the header serves as an
3792 * integrated config and xlat table: the records in the table are
3793 * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has
3794 * two bytes - the first as a config byte, the second for indexing the
3795 * fp mode table pointed to by the BIT 'D' table
3796 *
3797 * DDC is not used until after card init, so selecting the correct table
3798 * entry and setting the dual link flag for EDID equipped panels,
3799 * requiring tests against the native-mode pixel clock, cannot be done
3800 * until later, when this function should be called with non-zero pxclk
3801 */
3802 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3803 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3804 int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0;
3805 struct lvdstableheader lth;
3806 uint16_t lvdsofs;
04a39c57 3807 int ret, chip_version = bios->chip_version;
6ee73861
BS		 3808
3809 ret = parse_lvds_manufacturer_table_header(dev, bios, &lth);
3810 if (ret)
3811 return ret;
3812
3813 switch (lth.lvds_ver) {
3814 case 0x0a: /* pre NV40 */
3815 lvdsmanufacturerindex = bios->data[
3816 bios->fp.fpxlatemanufacturertableptr +
3817 fpstrapping];
3818
3819 /* we're done if this isn't the EDID panel case */
3820 if (!pxclk)
3821 break;
3822
3823 if (chip_version < 0x25) {
3824 /* nv17 behaviour
3825 *
3826 * It seems the old style lvds script pointer is reused
3827 * to select 18/24 bit colour depth for EDID panels.
3828 */
3829 lvdsmanufacturerindex =
3830 (bios->legacy.lvds_single_a_script_ptr & 1) ?
3831 2 : 0;
3832 if (pxclk >= bios->fp.duallink_transition_clk)
3833 lvdsmanufacturerindex++;
3834 } else if (chip_version < 0x30) {
3835 /* nv28 behaviour (off-chip encoder)
3836 *
3837 * nv28 does a complex dance of first using byte 121 of
3838 * the EDID to choose the lvdsmanufacturerindex, then
3839 * later attempting to match the EDID manufacturer and
3840 * product IDs in a table (signature 'pidt' (panel id
3841 * table?)), setting an lvdsmanufacturerindex of 0 and
3842 * an fp strap of the match index (or 0xf if none)
3843 */
3844 lvdsmanufacturerindex = 0;
3845 } else {
3846 /* nv31, nv34 behaviour */
3847 lvdsmanufacturerindex = 0;
3848 if (pxclk >= bios->fp.duallink_transition_clk)
3849 lvdsmanufacturerindex = 2;
3850 if (pxclk >= 140000)
3851 lvdsmanufacturerindex = 3;
3852 }
3853
3854 /*
3855 * nvidia set the high nibble of (cr57=f, cr58) to
3856 * lvdsmanufacturerindex in this case; we don't
3857 */
3858 break;
3859 case 0x30: /* NV4x */
3860 case 0x40: /* G80/G90 */
3861 lvdsmanufacturerindex = fpstrapping;
3862 break;
3863 default:
3864 NV_ERROR(dev, "LVDS table revision not currently supported\n");
3865 return -ENOSYS;
3866 }
3867
3868 lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
3869 switch (lth.lvds_ver) {
3870 case 0x0a:
3871 bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1;
3872 bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2;
3873 bios->fp.dual_link = bios->data[lvdsofs] & 4;
3874 bios->fp.link_c_increment = bios->data[lvdsofs] & 8;
3875 *if_is_24bit = bios->data[lvdsofs] & 16;
3876 break;
3877 case 0x30:
f3bbb9cc 3878 case 0x40:
6ee73861
BS		 3879 /*
3880 * No sign of the "power off for reset" or "reset for panel
3881 * on" bits, but it's safer to assume we should
3882 */
3883 bios->fp.power_off_for_reset = true;
3884 bios->fp.reset_after_pclk_change = true;
f3bbb9cc 3885
6ee73861
BS		 3886 /*
3887 * It's ok lvdsofs is wrong for nv4x edid case; dual_link is
f3bbb9cc 3888 * over-written, and if_is_24bit isn't used
6ee73861
BS		 3889 */
3890 bios->fp.dual_link = bios->data[lvdsofs] & 1;
6ee73861
BS		 3891 bios->fp.if_is_24bit = bios->data[lvdsofs] & 2;
3892 bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];
3893 bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10;
3894 break;
3895 }
3896
2eb92c80
BS		 3897 /* Dell Latitude D620 reports a too-high value for the dual-link
3898 * transition freq, causing us to program the panel incorrectly.
3899 *
3900 * It doesn't appear the VBIOS actually uses its transition freq
3901 * (90000kHz), instead it uses the "Number of LVDS channels" field
3902 * out of the panel ID structure (http://www.spwg.org/).
3903 *
3904 * For the moment, a quirk will do :)
3905 */
3906 if ((dev->pdev->device == 0x01d7) &&
3907 (dev->pdev->subsystem_vendor == 0x1028) &&
3908 (dev->pdev->subsystem_device == 0x01c2)) {
3909 bios->fp.duallink_transition_clk = 80000;
3910 }
3911
6ee73861
BS		 3912 /* set dual_link flag for EDID case */
3913 if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
3914 bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
3915
3916 *dl = bios->fp.dual_link;
3917
3918 return 0;
3919}
3920
3921static uint8_t *
3922bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent,
3923 uint16_t record, int record_len, int record_nr)
3924{
3925 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3926 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3927 uint32_t entry;
3928 uint16_t table;
3929 int i, v;
3930
3931 for (i = 0; i < record_nr; i++, record += record_len) {
3932 table = ROM16(bios->data[record]);
3933 if (!table)
3934 continue;
3935 entry = ROM32(bios->data[table]);
3936
3937 v = (entry & 0x000f0000) >> 16;
3938 if (!(v & dcbent->or))
3939 continue;
3940
3941 v = (entry & 0x000000f0) >> 4;
3942 if (v != dcbent->location)
3943 continue;
3944
3945 v = (entry & 0x0000000f);
3946 if (v != dcbent->type)
3947 continue;
3948
3949 return &bios->data[table];
3950 }
3951
3952 return NULL;
3953}
3954
3955void *
3956nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent,
3957 int *length)
3958{
3959 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 3960 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 3961 uint8_t *table;
3962
3963 if (!bios->display.dp_table_ptr) {
3964 NV_ERROR(dev, "No pointer to DisplayPort table\n");
3965 return NULL;
3966 }
3967 table = &bios->data[bios->display.dp_table_ptr];
3968
c52e53fd 3969 if (table[0] != 0x20 && table[0] != 0x21) {
6ee73861
BS		 3970 NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n",
3971 table[0]);
3972 return NULL;
3973 }
3974
3975 *length = table[4];
3976 return bios_output_config_match(dev, dcbent,
3977 bios->display.dp_table_ptr + table[1],
3978 table[2], table[3]);
3979}
3980
3981int
3982nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent,
3983 uint32_t sub, int pxclk)
3984{
3985 /*
3986 * The display script table is located by the BIT 'U' table.
3987 *
3988 * It contains an array of pointers to various tables describing
3989 * a particular output type. The first 32-bits of the output
3990 * tables contains similar information to a DCB entry, and is
3991 * used to decide whether that particular table is suitable for
3992 * the output you want to access.
3993 *
3994 * The "record header length" field here seems to indicate the
3995 * offset of the first configuration entry in the output tables.
3996 * This is 10 on most cards I've seen, but 12 has been witnessed
3997 * on DP cards, and there's another script pointer within the
3998 * header.
3999 *
4000 * offset + 0 ( 8 bits): version
4001 * offset + 1 ( 8 bits): header length
4002 * offset + 2 ( 8 bits): record length
4003 * offset + 3 ( 8 bits): number of records
4004 * offset + 4 ( 8 bits): record header length
4005 * offset + 5 (16 bits): pointer to first output script table
4006 */
4007
4008 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 4009 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 4010 uint8_t *table = &bios->data[bios->display.script_table_ptr];
4011 uint8_t *otable = NULL;
4012 uint16_t script;
4013 int i = 0;
4014
4015 if (!bios->display.script_table_ptr) {
4016 NV_ERROR(dev, "No pointer to output script table\n");
4017 return 1;
4018 }
4019
4020 /*
4021 * Nothing useful has been in any of the pre-2.0 tables I've seen,
4022 * so until they are, we really don't need to care.
4023 */
4024 if (table[0] < 0x20)
4025 return 1;
4026
4027 if (table[0] != 0x20 && table[0] != 0x21) {
4028 NV_ERROR(dev, "Output script table version 0x%02x unknown\n",
4029 table[0]);
4030 return 1;
4031 }
4032
4033 /*
4034 * The output script tables describing a particular output type
4035 * look as follows:
4036 *
4037 * offset + 0 (32 bits): output this table matches (hash of DCB)
4038 * offset + 4 ( 8 bits): unknown
4039 * offset + 5 ( 8 bits): number of configurations
4040 * offset + 6 (16 bits): pointer to some script
4041 * offset + 8 (16 bits): pointer to some script
4042 *
4043 * headerlen == 10
4044 * offset + 10 : configuration 0
4045 *
4046 * headerlen == 12
4047 * offset + 10 : pointer to some script
4048 * offset + 12 : configuration 0
4049 *
4050 * Each config entry is as follows:
4051 *
4052 * offset + 0 (16 bits): unknown, assumed to be a match value
4053 * offset + 2 (16 bits): pointer to script table (clock set?)
4054 * offset + 4 (16 bits): pointer to script table (reset?)
4055 *
4056 * There doesn't appear to be a count value to say how many
4057 * entries exist in each script table, instead, a 0 value in
4058 * the first 16-bit word seems to indicate both the end of the
4059 * list and the default entry. The second 16-bit word in the
4060 * script tables is a pointer to the script to execute.
4061 */
4062
ef2bb506 4063 NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n",
6ee73861
BS		 4064 dcbent->type, dcbent->location, dcbent->or);
4065 otable = bios_output_config_match(dev, dcbent, table[1] +
4066 bios->display.script_table_ptr,
4067 table[2], table[3]);
4068 if (!otable) {
4069 NV_ERROR(dev, "Couldn't find matching output script table\n");
4070 return 1;
4071 }
4072
4073 if (pxclk < -2 || pxclk > 0) {
4074 /* Try to find matching script table entry */
4075 for (i = 0; i < otable[5]; i++) {
4076 if (ROM16(otable[table[4] + i*6]) == sub)
4077 break;
4078 }
4079
4080 if (i == otable[5]) {
4081 NV_ERROR(dev, "Table 0x%04x not found for %d/%d, "
4082 "using first\n",
4083 sub, dcbent->type, dcbent->or);
4084 i = 0;
4085 }
4086 }
4087
6ee73861
BS		 4088 if (pxclk == 0) {
4089 script = ROM16(otable[6]);
4090 if (!script) {
ef2bb506 4091 NV_DEBUG_KMS(dev, "output script 0 not found\n");
6ee73861
BS		 4092 return 1;
4093 }
4094
4095 NV_TRACE(dev, "0x%04X: parsing output script 0\n", script);
39c9bfb4 4096 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4097 } else
4098 if (pxclk == -1) {
4099 script = ROM16(otable[8]);
4100 if (!script) {
ef2bb506 4101 NV_DEBUG_KMS(dev, "output script 1 not found\n");
6ee73861
BS		 4102 return 1;
4103 }
4104
4105 NV_TRACE(dev, "0x%04X: parsing output script 1\n", script);
39c9bfb4 4106 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4107 } else
4108 if (pxclk == -2) {
4109 if (table[4] >= 12)
4110 script = ROM16(otable[10]);
4111 else
4112 script = 0;
4113 if (!script) {
ef2bb506 4114 NV_DEBUG_KMS(dev, "output script 2 not found\n");
6ee73861
BS		 4115 return 1;
4116 }
4117
4118 NV_TRACE(dev, "0x%04X: parsing output script 2\n", script);
39c9bfb4 4119 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4120 } else
4121 if (pxclk > 0) {
4122 script = ROM16(otable[table[4] + i*6 + 2]);
4123 if (script)
4124 script = clkcmptable(bios, script, pxclk);
4125 if (!script) {
4126 NV_ERROR(dev, "clock script 0 not found\n");
4127 return 1;
4128 }
4129
4130 NV_TRACE(dev, "0x%04X: parsing clock script 0\n", script);
39c9bfb4 4131 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4132 } else
4133 if (pxclk < 0) {
4134 script = ROM16(otable[table[4] + i*6 + 4]);
4135 if (script)
4136 script = clkcmptable(bios, script, -pxclk);
4137 if (!script) {
ef2bb506 4138 NV_DEBUG_KMS(dev, "clock script 1 not found\n");
6ee73861
BS		 4139 return 1;
4140 }
4141
4142 NV_TRACE(dev, "0x%04X: parsing clock script 1\n", script);
39c9bfb4 4143 nouveau_bios_run_init_table(dev, script, dcbent);
6ee73861
BS		 4144 }
4145
4146 return 0;
4147}
4148
4149
4150int run_tmds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, int pxclk)
4151{
4152 /*
4153 * the pxclk parameter is in kHz
4154 *
4155 * This runs the TMDS regs setting code found on BIT bios cards
4156 *
4157 * For ffs(or) == 1 use the first table, for ffs(or) == 2 and
4158 * ffs(or) == 3, use the second.
4159 */
4160
4161 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57
BS		 4162 struct nvbios *bios = &dev_priv->vbios;
4163 int cv = bios->chip_version;
6ee73861
BS		 4164 uint16_t clktable = 0, scriptptr;
4165 uint32_t sel_clk_binding, sel_clk;
4166
4167 /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
4168 if (cv >= 0x17 && cv != 0x1a && cv != 0x20 &&
4169 dcbent->location != DCB_LOC_ON_CHIP)
4170 return 0;
4171
4172 switch (ffs(dcbent->or)) {
4173 case 1:
4174 clktable = bios->tmds.output0_script_ptr;
4175 break;
4176 case 2:
4177 case 3:
4178 clktable = bios->tmds.output1_script_ptr;
4179 break;
4180 }
4181
4182 if (!clktable) {
4183 NV_ERROR(dev, "Pixel clock comparison table not found\n");
4184 return -EINVAL;
4185 }
4186
4187 scriptptr = clkcmptable(bios, clktable, pxclk);
4188
4189 if (!scriptptr) {
4190 NV_ERROR(dev, "TMDS output init script not found\n");
4191 return -ENOENT;
4192 }
4193
4194 /* don't let script change pll->head binding */
4195 sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
4196 run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000);
4197 sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
4198 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
4199
4200 return 0;
4201}
4202
4203int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims *pll_lim)
4204{
4205 /*
4206 * PLL limits table
4207 *
4208 * Version 0x10: NV30, NV31
4209 * One byte header (version), one record of 24 bytes
4210 * Version 0x11: NV36 - Not implemented
4211 * Seems to have same record style as 0x10, but 3 records rather than 1
4212 * Version 0x20: Found on Geforce 6 cards
4213 * Trivial 4 byte BIT header. 31 (0x1f) byte record length
4214 * Version 0x21: Found on Geforce 7, 8 and some Geforce 6 cards
4215 * 5 byte header, fifth byte of unknown purpose. 35 (0x23) byte record
4216 * length in general, some (integrated) have an extra configuration byte
4217 * Version 0x30: Found on Geforce 8, separates the register mapping
4218 * from the limits tables.
4219 */
4220
4221 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57
BS		 4222 struct nvbios *bios = &dev_priv->vbios;
4223 int cv = bios->chip_version, pllindex = 0;
6ee73861
BS		 4224 uint8_t pll_lim_ver = 0, headerlen = 0, recordlen = 0, entries = 0;
4225 uint32_t crystal_strap_mask, crystal_straps;
4226
4227 if (!bios->pll_limit_tbl_ptr) {
4228 if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 ||
4229 cv >= 0x40) {
4230 NV_ERROR(dev, "Pointer to PLL limits table invalid\n");
4231 return -EINVAL;
4232 }
4233 } else
4234 pll_lim_ver = bios->data[bios->pll_limit_tbl_ptr];
4235
4236 crystal_strap_mask = 1 << 6;
4237 /* open coded dev->twoHeads test */
4238 if (cv > 0x10 && cv != 0x15 && cv != 0x1a && cv != 0x20)
4239 crystal_strap_mask |= 1 << 22;
4240 crystal_straps = nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) &
4241 crystal_strap_mask;
4242
4243 switch (pll_lim_ver) {
4244 /*
4245 * We use version 0 to indicate a pre limit table bios (single stage
4246 * pll) and load the hard coded limits instead.
4247 */
4248 case 0:
4249 break;
4250 case 0x10:
4251 case 0x11:
4252 /*
4253 * Strictly v0x11 has 3 entries, but the last two don't seem
4254 * to get used.
4255 */
4256 headerlen = 1;
4257 recordlen = 0x18;
4258 entries = 1;
4259 pllindex = 0;
4260 break;
4261 case 0x20:
4262 case 0x21:
4263 case 0x30:
4264 case 0x40:
4265 headerlen = bios->data[bios->pll_limit_tbl_ptr + 1];
4266 recordlen = bios->data[bios->pll_limit_tbl_ptr + 2];
4267 entries = bios->data[bios->pll_limit_tbl_ptr + 3];
4268 break;
4269 default:
4270 NV_ERROR(dev, "PLL limits table revision 0x%X not currently "
4271 "supported\n", pll_lim_ver);
4272 return -ENOSYS;
4273 }
4274
4275 /* initialize all members to zero */
4276 memset(pll_lim, 0, sizeof(struct pll_lims));
4277
4278 if (pll_lim_ver == 0x10 || pll_lim_ver == 0x11) {
4279 uint8_t *pll_rec = &bios->data[bios->pll_limit_tbl_ptr + headerlen + recordlen * pllindex];
4280
4281 pll_lim->vco1.minfreq = ROM32(pll_rec[0]);
4282 pll_lim->vco1.maxfreq = ROM32(pll_rec[4]);
4283 pll_lim->vco2.minfreq = ROM32(pll_rec[8]);
4284 pll_lim->vco2.maxfreq = ROM32(pll_rec[12]);
4285 pll_lim->vco1.min_inputfreq = ROM32(pll_rec[16]);
4286 pll_lim->vco2.min_inputfreq = ROM32(pll_rec[20]);
4287 pll_lim->vco1.max_inputfreq = pll_lim->vco2.max_inputfreq = INT_MAX;
4288
4289 /* these values taken from nv30/31/36 */
4290 pll_lim->vco1.min_n = 0x1;
4291 if (cv == 0x36)
4292 pll_lim->vco1.min_n = 0x5;
4293 pll_lim->vco1.max_n = 0xff;
4294 pll_lim->vco1.min_m = 0x1;
4295 pll_lim->vco1.max_m = 0xd;
4296 pll_lim->vco2.min_n = 0x4;
4297 /*
4298 * On nv30, 31, 36 (i.e. all cards with two stage PLLs with this
4299 * table version (apart from nv35)), N2 is compared to
4300 * maxN2 (0x46) and 10 * maxM2 (0x4), so set maxN2 to 0x28 and
4301 * save a comparison
4302 */
4303 pll_lim->vco2.max_n = 0x28;
4304 if (cv == 0x30 || cv == 0x35)
4305 /* only 5 bits available for N2 on nv30/35 */
4306 pll_lim->vco2.max_n = 0x1f;
4307 pll_lim->vco2.min_m = 0x1;
4308 pll_lim->vco2.max_m = 0x4;
4309 pll_lim->max_log2p = 0x7;
4310 pll_lim->max_usable_log2p = 0x6;
4311 } else if (pll_lim_ver == 0x20 || pll_lim_ver == 0x21) {
4312 uint16_t plloffs = bios->pll_limit_tbl_ptr + headerlen;
4313 uint32_t reg = 0; /* default match */
4314 uint8_t *pll_rec;
4315 int i;
4316
4317 /*
4318 * First entry is default match, if nothing better. warn if
4319 * reg field nonzero
4320 */
4321 if (ROM32(bios->data[plloffs]))
4322 NV_WARN(dev, "Default PLL limit entry has non-zero "
4323 "register field\n");
4324
4325 if (limit_match > MAX_PLL_TYPES)
4326 /* we've been passed a reg as the match */
4327 reg = limit_match;
4328 else /* limit match is a pll type */
4329 for (i = 1; i < entries && !reg; i++) {
4330 uint32_t cmpreg = ROM32(bios->data[plloffs + recordlen * i]);
4331
4332 if (limit_match == NVPLL &&
4333 (cmpreg == NV_PRAMDAC_NVPLL_COEFF || cmpreg == 0x4000))
4334 reg = cmpreg;
4335 if (limit_match == MPLL &&
4336 (cmpreg == NV_PRAMDAC_MPLL_COEFF || cmpreg == 0x4020))
4337 reg = cmpreg;
4338 if (limit_match == VPLL1 &&
4339 (cmpreg == NV_PRAMDAC_VPLL_COEFF || cmpreg == 0x4010))
4340 reg = cmpreg;
4341 if (limit_match == VPLL2 &&
4342 (cmpreg == NV_RAMDAC_VPLL2 || cmpreg == 0x4018))
4343 reg = cmpreg;
4344 }
4345
4346 for (i = 1; i < entries; i++)
4347 if (ROM32(bios->data[plloffs + recordlen * i]) == reg) {
4348 pllindex = i;
4349 break;
4350 }
4351
4352 pll_rec = &bios->data[plloffs + recordlen * pllindex];
4353
4354 BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n",
4355 pllindex ? reg : 0);
4356
4357 /*
4358 * Frequencies are stored in tables in MHz, kHz are more
4359 * useful, so we convert.
4360 */
4361
4362 /* What output frequencies can each VCO generate? */
4363 pll_lim->vco1.minfreq = ROM16(pll_rec[4]) * 1000;
4364 pll_lim->vco1.maxfreq = ROM16(pll_rec[6]) * 1000;
4365 pll_lim->vco2.minfreq = ROM16(pll_rec[8]) * 1000;
4366 pll_lim->vco2.maxfreq = ROM16(pll_rec[10]) * 1000;
4367
4368 /* What input frequencies they accept (past the m-divider)? */
4369 pll_lim->vco1.min_inputfreq = ROM16(pll_rec[12]) * 1000;
4370 pll_lim->vco2.min_inputfreq = ROM16(pll_rec[14]) * 1000;
4371 pll_lim->vco1.max_inputfreq = ROM16(pll_rec[16]) * 1000;
4372 pll_lim->vco2.max_inputfreq = ROM16(pll_rec[18]) * 1000;
4373
4374 /* What values are accepted as multiplier and divider? */
4375 pll_lim->vco1.min_n = pll_rec[20];
4376 pll_lim->vco1.max_n = pll_rec[21];
4377 pll_lim->vco1.min_m = pll_rec[22];
4378 pll_lim->vco1.max_m = pll_rec[23];
4379 pll_lim->vco2.min_n = pll_rec[24];
4380 pll_lim->vco2.max_n = pll_rec[25];
4381 pll_lim->vco2.min_m = pll_rec[26];
4382 pll_lim->vco2.max_m = pll_rec[27];
4383
4384 pll_lim->max_usable_log2p = pll_lim->max_log2p = pll_rec[29];
4385 if (pll_lim->max_log2p > 0x7)
4386 /* pll decoding in nv_hw.c assumes never > 7 */
4387 NV_WARN(dev, "Max log2 P value greater than 7 (%d)\n",
4388 pll_lim->max_log2p);
4389 if (cv < 0x60)
4390 pll_lim->max_usable_log2p = 0x6;
4391 pll_lim->log2p_bias = pll_rec[30];
4392
4393 if (recordlen > 0x22)
4394 pll_lim->refclk = ROM32(pll_rec[31]);
4395
4396 if (recordlen > 0x23 && pll_rec[35])
4397 NV_WARN(dev,
4398 "Bits set in PLL configuration byte (%x)\n",
4399 pll_rec[35]);
4400
4401 /* C51 special not seen elsewhere */
4402 if (cv == 0x51 && !pll_lim->refclk) {
4403 uint32_t sel_clk = bios_rd32(bios, NV_PRAMDAC_SEL_CLK);
4404
4405 if (((limit_match == NV_PRAMDAC_VPLL_COEFF || limit_match == VPLL1) && sel_clk & 0x20) ||
4406 ((limit_match == NV_RAMDAC_VPLL2 || limit_match == VPLL2) && sel_clk & 0x80)) {
4407 if (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_CHIP_ID_INDEX) < 0xa3)
4408 pll_lim->refclk = 200000;
4409 else
4410 pll_lim->refclk = 25000;
4411 }
4412 }
4413 } else if (pll_lim_ver == 0x30) { /* ver 0x30 */
4414 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
4415 uint8_t *record = NULL;
4416 int i;
4417
4418 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
4419 limit_match);
4420
4421 for (i = 0; i < entries; i++, entry += recordlen) {
4422 if (ROM32(entry[3]) == limit_match) {
4423 record = &bios->data[ROM16(entry[1])];
4424 break;
4425 }
4426 }
4427
4428 if (!record) {
4429 NV_ERROR(dev, "Register 0x%08x not found in PLL "
4430 "limits table", limit_match);
4431 return -ENOENT;
4432 }
4433
4434 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
4435 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
4436 pll_lim->vco2.minfreq = ROM16(record[4]) * 1000;
4437 pll_lim->vco2.maxfreq = ROM16(record[6]) * 1000;
4438 pll_lim->vco1.min_inputfreq = ROM16(record[8]) * 1000;
4439 pll_lim->vco2.min_inputfreq = ROM16(record[10]) * 1000;
4440 pll_lim->vco1.max_inputfreq = ROM16(record[12]) * 1000;
4441 pll_lim->vco2.max_inputfreq = ROM16(record[14]) * 1000;
4442 pll_lim->vco1.min_n = record[16];
4443 pll_lim->vco1.max_n = record[17];
4444 pll_lim->vco1.min_m = record[18];
4445 pll_lim->vco1.max_m = record[19];
4446 pll_lim->vco2.min_n = record[20];
4447 pll_lim->vco2.max_n = record[21];
4448 pll_lim->vco2.min_m = record[22];
4449 pll_lim->vco2.max_m = record[23];
4450 pll_lim->max_usable_log2p = pll_lim->max_log2p = record[25];
4451 pll_lim->log2p_bias = record[27];
4452 pll_lim->refclk = ROM32(record[28]);
4453 } else if (pll_lim_ver) { /* ver 0x40 */
4454 uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
4455 uint8_t *record = NULL;
4456 int i;
4457
4458 BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
4459 limit_match);
4460
4461 for (i = 0; i < entries; i++, entry += recordlen) {
4462 if (ROM32(entry[3]) == limit_match) {
4463 record = &bios->data[ROM16(entry[1])];
4464 break;
4465 }
4466 }
4467
4468 if (!record) {
4469 NV_ERROR(dev, "Register 0x%08x not found in PLL "
4470 "limits table", limit_match);
4471 return -ENOENT;
4472 }
4473
4474 pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
4475 pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
4476 pll_lim->vco1.min_inputfreq = ROM16(record[4]) * 1000;
4477 pll_lim->vco1.max_inputfreq = ROM16(record[6]) * 1000;
4478 pll_lim->vco1.min_m = record[8];
4479 pll_lim->vco1.max_m = record[9];
4480 pll_lim->vco1.min_n = record[10];
4481 pll_lim->vco1.max_n = record[11];
4482 pll_lim->min_p = record[12];
4483 pll_lim->max_p = record[13];
4484 /* where did this go to?? */
4485 if (limit_match == 0x00614100 || limit_match == 0x00614900)
4486 pll_lim->refclk = 27000;
4487 else
4488 pll_lim->refclk = 100000;
4489 }
4490
4491 /*
4492 * By now any valid limit table ought to have set a max frequency for
4493 * vco1, so if it's zero it's either a pre limit table bios, or one
4494 * with an empty limit table (seen on nv18)
4495 */
4496 if (!pll_lim->vco1.maxfreq) {
4497 pll_lim->vco1.minfreq = bios->fminvco;
4498 pll_lim->vco1.maxfreq = bios->fmaxvco;
4499 pll_lim->vco1.min_inputfreq = 0;
4500 pll_lim->vco1.max_inputfreq = INT_MAX;
4501 pll_lim->vco1.min_n = 0x1;
4502 pll_lim->vco1.max_n = 0xff;
4503 pll_lim->vco1.min_m = 0x1;
4504 if (crystal_straps == 0) {
4505 /* nv05 does this, nv11 doesn't, nv10 unknown */
4506 if (cv < 0x11)
4507 pll_lim->vco1.min_m = 0x7;
4508 pll_lim->vco1.max_m = 0xd;
4509 } else {
4510 if (cv < 0x11)
4511 pll_lim->vco1.min_m = 0x8;
4512 pll_lim->vco1.max_m = 0xe;
4513 }
4514 if (cv < 0x17 || cv == 0x1a || cv == 0x20)
4515 pll_lim->max_log2p = 4;
4516 else
4517 pll_lim->max_log2p = 5;
4518 pll_lim->max_usable_log2p = pll_lim->max_log2p;
4519 }
4520
4521 if (!pll_lim->refclk)
4522 switch (crystal_straps) {
4523 case 0:
4524 pll_lim->refclk = 13500;
4525 break;
4526 case (1 << 6):
4527 pll_lim->refclk = 14318;
4528 break;
4529 case (1 << 22):
4530 pll_lim->refclk = 27000;
4531 break;
4532 case (1 << 22 | 1 << 6):
4533 pll_lim->refclk = 25000;
4534 break;
4535 }
4536
4c389f00
BS		 4537 NV_DEBUG(dev, "pll.vco1.minfreq: %d\n", pll_lim->vco1.minfreq);
4538 NV_DEBUG(dev, "pll.vco1.maxfreq: %d\n", pll_lim->vco1.maxfreq);
4539 NV_DEBUG(dev, "pll.vco1.min_inputfreq: %d\n", pll_lim->vco1.min_inputfreq);
4540 NV_DEBUG(dev, "pll.vco1.max_inputfreq: %d\n", pll_lim->vco1.max_inputfreq);
4541 NV_DEBUG(dev, "pll.vco1.min_n: %d\n", pll_lim->vco1.min_n);
4542 NV_DEBUG(dev, "pll.vco1.max_n: %d\n", pll_lim->vco1.max_n);
4543 NV_DEBUG(dev, "pll.vco1.min_m: %d\n", pll_lim->vco1.min_m);
4544 NV_DEBUG(dev, "pll.vco1.max_m: %d\n", pll_lim->vco1.max_m);
4545 if (pll_lim->vco2.maxfreq) {
4546 NV_DEBUG(dev, "pll.vco2.minfreq: %d\n", pll_lim->vco2.minfreq);
4547 NV_DEBUG(dev, "pll.vco2.maxfreq: %d\n", pll_lim->vco2.maxfreq);
4548 NV_DEBUG(dev, "pll.vco2.min_inputfreq: %d\n", pll_lim->vco2.min_inputfreq);
4549 NV_DEBUG(dev, "pll.vco2.max_inputfreq: %d\n", pll_lim->vco2.max_inputfreq);
4550 NV_DEBUG(dev, "pll.vco2.min_n: %d\n", pll_lim->vco2.min_n);
4551 NV_DEBUG(dev, "pll.vco2.max_n: %d\n", pll_lim->vco2.max_n);
4552 NV_DEBUG(dev, "pll.vco2.min_m: %d\n", pll_lim->vco2.min_m);
4553 NV_DEBUG(dev, "pll.vco2.max_m: %d\n", pll_lim->vco2.max_m);
4554 }
4555 if (!pll_lim->max_p) {
4556 NV_DEBUG(dev, "pll.max_log2p: %d\n", pll_lim->max_log2p);
4557 NV_DEBUG(dev, "pll.log2p_bias: %d\n", pll_lim->log2p_bias);
4558 } else {
4559 NV_DEBUG(dev, "pll.min_p: %d\n", pll_lim->min_p);
4560 NV_DEBUG(dev, "pll.max_p: %d\n", pll_lim->max_p);
4561 }
4562 NV_DEBUG(dev, "pll.refclk: %d\n", pll_lim->refclk);
6ee73861
BS		 4563
4564 return 0;
4565}
4566
4567static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset)
4568{
4569 /*
4570 * offset + 0 (8 bits): Micro version
4571 * offset + 1 (8 bits): Minor version
4572 * offset + 2 (8 bits): Chip version
4573 * offset + 3 (8 bits): Major version
4574 */
4575
4576 bios->major_version = bios->data[offset + 3];
04a39c57 4577 bios->chip_version = bios->data[offset + 2];
6ee73861
BS		 4578 NV_TRACE(dev, "Bios version %02x.%02x.%02x.%02x\n",
4579 bios->data[offset + 3], bios->data[offset + 2],
4580 bios->data[offset + 1], bios->data[offset]);
4581}
4582
4583static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
4584{
4585 /*
4586 * Parses the init table segment for pointers used in script execution.
4587 *
4588 * offset + 0 (16 bits): init script tables pointer
4589 * offset + 2 (16 bits): macro index table pointer
4590 * offset + 4 (16 bits): macro table pointer
4591 * offset + 6 (16 bits): condition table pointer
4592 * offset + 8 (16 bits): io condition table pointer
4593 * offset + 10 (16 bits): io flag condition table pointer
4594 * offset + 12 (16 bits): init function table pointer
4595 */
4596
4597 bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
4598 bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]);
4599 bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]);
4600 bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]);
4601 bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]);
4602 bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]);
4603 bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]);
4604}
4605
4606static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4607{
4608 /*
4609 * Parses the load detect values for g80 cards.
4610 *
4611 * offset + 0 (16 bits): loadval table pointer
4612 */
4613
4614 uint16_t load_table_ptr;
4615 uint8_t version, headerlen, entrylen, num_entries;
4616
4617 if (bitentry->length != 3) {
4618 NV_ERROR(dev, "Do not understand BIT A table\n");
4619 return -EINVAL;
4620 }
4621
4622 load_table_ptr = ROM16(bios->data[bitentry->offset]);
4623
4624 if (load_table_ptr == 0x0) {
4625 NV_ERROR(dev, "Pointer to BIT loadval table invalid\n");
4626 return -EINVAL;
4627 }
4628
4629 version = bios->data[load_table_ptr];
4630
4631 if (version != 0x10) {
4632 NV_ERROR(dev, "BIT loadval table version %d.%d not supported\n",
4633 version >> 4, version & 0xF);
4634 return -ENOSYS;
4635 }
4636
4637 headerlen = bios->data[load_table_ptr + 1];
4638 entrylen = bios->data[load_table_ptr + 2];
4639 num_entries = bios->data[load_table_ptr + 3];
4640
4641 if (headerlen != 4 || entrylen != 4 || num_entries != 2) {
4642 NV_ERROR(dev, "Do not understand BIT loadval table\n");
4643 return -EINVAL;
4644 }
4645
4646 /* First entry is normal dac, 2nd tv-out perhaps? */
04a39c57 4647 bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff;
6ee73861
BS		 4648
4649 return 0;
4650}
4651
4652static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4653{
4654 /*
4655 * offset + 8 (16 bits): PLL limits table pointer
4656 *
4657 * There's more in here, but that's unknown.
4658 */
4659
4660 if (bitentry->length < 10) {
4661 NV_ERROR(dev, "Do not understand BIT C table\n");
4662 return -EINVAL;
4663 }
4664
4665 bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]);
4666
4667 return 0;
4668}
4669
4670static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4671{
4672 /*
4673 * Parses the flat panel table segment that the bit entry points to.
4674 * Starting at bitentry->offset:
4675 *
4676 * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte
4677 * records beginning with a freq.
4678 * offset + 2 (16 bits): mode table pointer
4679 */
4680
4681 if (bitentry->length != 4) {
4682 NV_ERROR(dev, "Do not understand BIT display table\n");
4683 return -EINVAL;
4684 }
4685
4686 bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]);
4687
4688 return 0;
4689}
4690
4691static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4692{
4693 /*
4694 * Parses the init table segment that the bit entry points to.
4695 *
4696 * See parse_script_table_pointers for layout
4697 */
4698
4699 if (bitentry->length < 14) {
4700 NV_ERROR(dev, "Do not understand init table\n");
4701 return -EINVAL;
4702 }
4703
4704 parse_script_table_pointers(bios, bitentry->offset);
4705
4706 if (bitentry->length >= 16)
4707 bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]);
4708 if (bitentry->length >= 18)
4709 bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]);
4710
4711 return 0;
4712}
4713
4714static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4715{
4716 /*
4717 * BIT 'i' (info?) table
4718 *
4719 * offset + 0 (32 bits): BIOS version dword (as in B table)
4720 * offset + 5 (8 bits): BIOS feature byte (same as for BMP?)
4721 * offset + 13 (16 bits): pointer to table containing DAC load
4722 * detection comparison values
4723 *
4724 * There's other things in the table, purpose unknown
4725 */
4726
4727 uint16_t daccmpoffset;
4728 uint8_t dacver, dacheaderlen;
4729
4730 if (bitentry->length < 6) {
4731 NV_ERROR(dev, "BIT i table too short for needed information\n");
4732 return -EINVAL;
4733 }
4734
4735 parse_bios_version(dev, bios, bitentry->offset);
4736
4737 /*
4738 * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's
4739 * Quadro identity crisis), other bits possibly as for BMP feature byte
4740 */
4741 bios->feature_byte = bios->data[bitentry->offset + 5];
4742 bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
4743
4744 if (bitentry->length < 15) {
4745 NV_WARN(dev, "BIT i table not long enough for DAC load "
4746 "detection comparison table\n");
4747 return -EINVAL;
4748 }
4749
4750 daccmpoffset = ROM16(bios->data[bitentry->offset + 13]);
4751
4752 /* doesn't exist on g80 */
4753 if (!daccmpoffset)
4754 return 0;
4755
4756 /*
4757 * The first value in the table, following the header, is the
4758 * comparison value, the second entry is a comparison value for
4759 * TV load detection.
4760 */
4761
4762 dacver = bios->data[daccmpoffset];
4763 dacheaderlen = bios->data[daccmpoffset + 1];
4764
4765 if (dacver != 0x00 && dacver != 0x10) {
4766 NV_WARN(dev, "DAC load detection comparison table version "
4767 "%d.%d not known\n", dacver >> 4, dacver & 0xf);
4768 return -ENOSYS;
4769 }
4770
04a39c57
BS		 4771 bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
4772 bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]);
6ee73861
BS		 4773
4774 return 0;
4775}
4776
4777static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4778{
4779 /*
4780 * Parses the LVDS table segment that the bit entry points to.
4781 * Starting at bitentry->offset:
4782 *
4783 * offset + 0 (16 bits): LVDS strap xlate table pointer
4784 */
4785
4786 if (bitentry->length != 2) {
4787 NV_ERROR(dev, "Do not understand BIT LVDS table\n");
4788 return -EINVAL;
4789 }
4790
4791 /*
4792 * No idea if it's still called the LVDS manufacturer table, but
4793 * the concept's close enough.
4794 */
4795 bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
4796
4797 return 0;
4798}
4799
4800static int
4801parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
4802 struct bit_entry *bitentry)
4803{
4804 /*
4805 * offset + 2 (8 bits): number of options in an
4806 * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
4807 * offset + 3 (16 bits): pointer to strap xlate table for RAM
4808 * restrict option selection
4809 *
4810 * There's a bunch of bits in this table other than the RAM restrict
4811 * stuff that we don't use - their use currently unknown
4812 */
4813
6ee73861
BS		 4814 /*
4815 * Older bios versions don't have a sufficiently long table for
4816 * what we want
4817 */
4818 if (bitentry->length < 0x5)
4819 return 0;
4820
4821 if (bitentry->id[1] < 2) {
37383650
MK		 4822 bios->ram_restrict_group_count = bios->data[bitentry->offset + 2];
4823 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]);
6ee73861 4824 } else {
37383650
MK		 4825 bios->ram_restrict_group_count = bios->data[bitentry->offset + 0];
4826 bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]);
6ee73861
BS		 4827 }
4828
6ee73861
BS		 4829 return 0;
4830}
4831
4832static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
4833{
4834 /*
4835 * Parses the pointer to the TMDS table
4836 *
4837 * Starting at bitentry->offset:
4838 *
4839 * offset + 0 (16 bits): TMDS table pointer
4840 *
4841 * The TMDS table is typically found just before the DCB table, with a
4842 * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being
4843 * length?)
4844 *
4845 * At offset +7 is a pointer to a script, which I don't know how to
4846 * run yet.
4847 * At offset +9 is a pointer to another script, likewise
4848 * Offset +11 has a pointer to a table where the first word is a pxclk
4849 * frequency and the second word a pointer to a script, which should be
4850 * run if the comparison pxclk frequency is less than the pxclk desired.
4851 * This repeats for decreasing comparison frequencies
4852 * Offset +13 has a pointer to a similar table
4853 * The selection of table (and possibly +7/+9 script) is dictated by
4854 * "or" from the DCB.
4855 */
4856
4857 uint16_t tmdstableptr, script1, script2;
4858
4859 if (bitentry->length != 2) {
4860 NV_ERROR(dev, "Do not understand BIT TMDS table\n");
4861 return -EINVAL;
4862 }
4863
4864 tmdstableptr = ROM16(bios->data[bitentry->offset]);
4865
4866 if (tmdstableptr == 0x0) {
4867 NV_ERROR(dev, "Pointer to TMDS table invalid\n");
4868 return -EINVAL;
4869 }
4870
4871 /* nv50+ has v2.0, but we don't parse it atm */
4872 if (bios->data[tmdstableptr] != 0x11) {
4873 NV_WARN(dev,
4874 "TMDS table revision %d.%d not currently supported\n",
4875 bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf);
4876 return -ENOSYS;
4877 }
4878
4879 /*
4880 * These two scripts are odd: they don't seem to get run even when
4881 * they are not stubbed.
4882 */
4883 script1 = ROM16(bios->data[tmdstableptr + 7]);
4884 script2 = ROM16(bios->data[tmdstableptr + 9]);
4885 if (bios->data[script1] != 'q' || bios->data[script2] != 'q')
4886 NV_WARN(dev, "TMDS table script pointers not stubbed\n");
4887
4888 bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]);
4889 bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]);
4890
4891 return 0;
4892}
4893
4894static int
4895parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
4896 struct bit_entry *bitentry)
4897{
4898 /*
4899 * Parses the pointer to the G80 output script tables
4900 *
4901 * Starting at bitentry->offset:
4902 *
4903 * offset + 0 (16 bits): output script table pointer
4904 */
4905
4906 uint16_t outputscripttableptr;
4907
4908 if (bitentry->length != 3) {
4909 NV_ERROR(dev, "Do not understand BIT U table\n");
4910 return -EINVAL;
4911 }
4912
4913 outputscripttableptr = ROM16(bios->data[bitentry->offset]);
4914 bios->display.script_table_ptr = outputscripttableptr;
4915 return 0;
4916}
4917
4918static int
4919parse_bit_displayport_tbl_entry(struct drm_device *dev, struct nvbios *bios,
4920 struct bit_entry *bitentry)
4921{
4922 bios->display.dp_table_ptr = ROM16(bios->data[bitentry->offset]);
4923 return 0;
4924}
4925
4926struct bit_table {
4927 const char id;
4928 int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
4929};
4930
4931#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
4932
4933static int
4934parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
4935 struct bit_table *table)
4936{
4937 struct drm_device *dev = bios->dev;
4938 uint8_t maxentries = bios->data[bitoffset + 4];
4939 int i, offset;
4940 struct bit_entry bitentry;
4941
4942 for (i = 0, offset = bitoffset + 6; i < maxentries; i++, offset += 6) {
4943 bitentry.id[0] = bios->data[offset];
4944
4945 if (bitentry.id[0] != table->id)
4946 continue;
4947
4948 bitentry.id[1] = bios->data[offset + 1];
4949 bitentry.length = ROM16(bios->data[offset + 2]);
4950 bitentry.offset = ROM16(bios->data[offset + 4]);
4951
4952 return table->parse_fn(dev, bios, &bitentry);
4953 }
4954
4955 NV_INFO(dev, "BIT table '%c' not found\n", table->id);
4956 return -ENOSYS;
4957}
4958
4959static int
4960parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
4961{
4962 int ret;
4963
4964 /*
4965 * The only restriction on parsing order currently is having 'i' first
4966 * for use of bios->*_version or bios->feature_byte while parsing;
4967 * functions shouldn't be actually *doing* anything apart from pulling
4968 * data from the image into the bios struct, thus no interdependencies
4969 */
4970 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i));
4971 if (ret) /* info? */
4972 return ret;
4973 if (bios->major_version >= 0x60) /* g80+ */
4974 parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A));
4975 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C));
4976 if (ret)
4977 return ret;
4978 parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display));
4979 ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init));
4980 if (ret)
4981 return ret;
4982 parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */
4983 parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds));
4984 parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds));
4985 parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
4986 parse_bit_table(bios, bitoffset, &BIT_TABLE('d', displayport));
4987
4988 return 0;
4989}
4990
4991static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
4992{
4993 /*
4994 * Parses the BMP structure for useful things, but does not act on them
4995 *
4996 * offset + 5: BMP major version
4997 * offset + 6: BMP minor version
4998 * offset + 9: BMP feature byte
4999 * offset + 10: BCD encoded BIOS version
5000 *
5001 * offset + 18: init script table pointer (for bios versions < 5.10h)
5002 * offset + 20: extra init script table pointer (for bios
5003 * versions < 5.10h)
5004 *
5005 * offset + 24: memory init table pointer (used on early bios versions)
5006 * offset + 26: SDR memory sequencing setup data table
5007 * offset + 28: DDR memory sequencing setup data table
5008 *
5009 * offset + 54: index of I2C CRTC pair to use for CRT output
5010 * offset + 55: index of I2C CRTC pair to use for TV output
5011 * offset + 56: index of I2C CRTC pair to use for flat panel output
5012 * offset + 58: write CRTC index for I2C pair 0
5013 * offset + 59: read CRTC index for I2C pair 0
5014 * offset + 60: write CRTC index for I2C pair 1
5015 * offset + 61: read CRTC index for I2C pair 1
5016 *
5017 * offset + 67: maximum internal PLL frequency (single stage PLL)
5018 * offset + 71: minimum internal PLL frequency (single stage PLL)
5019 *
5020 * offset + 75: script table pointers, as described in
5021 * parse_script_table_pointers
5022 *
5023 * offset + 89: TMDS single link output A table pointer
5024 * offset + 91: TMDS single link output B table pointer
5025 * offset + 95: LVDS single link output A table pointer
5026 * offset + 105: flat panel timings table pointer
5027 * offset + 107: flat panel strapping translation table pointer
5028 * offset + 117: LVDS manufacturer panel config table pointer
5029 * offset + 119: LVDS manufacturer strapping translation table pointer
5030 *
5031 * offset + 142: PLL limits table pointer
5032 *
5033 * offset + 156: minimum pixel clock for LVDS dual link
5034 */
5035
5036 uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
5037 uint16_t bmplength;
5038 uint16_t legacy_scripts_offset, legacy_i2c_offset;
5039
5040 /* load needed defaults in case we can't parse this info */
7f245b20
BS		 5041 bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX;
5042 bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX;
5043 bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX;
5044 bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX;
04a39c57 5045 bios->digital_min_front_porch = 0x4b;
6ee73861
BS		 5046 bios->fmaxvco = 256000;
5047 bios->fminvco = 128000;
5048 bios->fp.duallink_transition_clk = 90000;
5049
5050 bmp_version_major = bmp[5];
5051 bmp_version_minor = bmp[6];
5052
5053 NV_TRACE(dev, "BMP version %d.%d\n",
5054 bmp_version_major, bmp_version_minor);
5055
5056 /*
5057 * Make sure that 0x36 is blank and can't be mistaken for a DCB
5058 * pointer on early versions
5059 */
5060 if (bmp_version_major < 5)
5061 *(uint16_t *)&bios->data[0x36] = 0;
5062
5063 /*
5064 * Seems that the minor version was 1 for all major versions prior
5065 * to 5. Version 6 could theoretically exist, but I suspect BIT
5066 * happened instead.
5067 */
5068 if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) {
5069 NV_ERROR(dev, "You have an unsupported BMP version. "
5070 "Please send in your bios\n");
5071 return -ENOSYS;
5072 }
5073
5074 if (bmp_version_major == 0)
5075 /* nothing that's currently useful in this version */
5076 return 0;
5077 else if (bmp_version_major == 1)
5078 bmplength = 44; /* exact for 1.01 */
5079 else if (bmp_version_major == 2)
5080 bmplength = 48; /* exact for 2.01 */
5081 else if (bmp_version_major == 3)
5082 bmplength = 54;
5083 /* guessed - mem init tables added in this version */
5084 else if (bmp_version_major == 4 || bmp_version_minor < 0x1)
5085 /* don't know if 5.0 exists... */
5086 bmplength = 62;
5087 /* guessed - BMP I2C indices added in version 4*/
5088 else if (bmp_version_minor < 0x6)
5089 bmplength = 67; /* exact for 5.01 */
5090 else if (bmp_version_minor < 0x10)
5091 bmplength = 75; /* exact for 5.06 */
5092 else if (bmp_version_minor == 0x10)
5093 bmplength = 89; /* exact for 5.10h */
5094 else if (bmp_version_minor < 0x14)
5095 bmplength = 118; /* exact for 5.11h */
5096 else if (bmp_version_minor < 0x24)
5097 /*
5098 * Not sure of version where pll limits came in;
5099 * certainly exist by 0x24 though.
5100 */
5101 /* length not exact: this is long enough to get lvds members */
5102 bmplength = 123;
5103 else if (bmp_version_minor < 0x27)
5104 /*
5105 * Length not exact: this is long enough to get pll limit
5106 * member
5107 */
5108 bmplength = 144;
5109 else
5110 /*
5111 * Length not exact: this is long enough to get dual link
5112 * transition clock.
5113 */
5114 bmplength = 158;
5115
5116 /* checksum */
5117 if (nv_cksum(bmp, 8)) {
5118 NV_ERROR(dev, "Bad BMP checksum\n");
5119 return -EINVAL;
5120 }
5121
5122 /*
5123 * Bit 4 seems to indicate either a mobile bios or a quadro card --
5124 * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl
5125 * (not nv10gl), bit 5 that the flat panel tables are present, and
5126 * bit 6 a tv bios.
5127 */
5128 bios->feature_byte = bmp[9];
5129
5130 parse_bios_version(dev, bios, offset + 10);
5131
5132 if (bmp_version_major < 5 || bmp_version_minor < 0x10)
5133 bios->old_style_init = true;
5134 legacy_scripts_offset = 18;
5135 if (bmp_version_major < 2)
5136 legacy_scripts_offset -= 4;
5137 bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
5138 bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]);
5139
5140 if (bmp_version_major > 2) { /* appears in BMP 3 */
5141 bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]);
5142 bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]);
5143 bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]);
5144 }
5145
5146 legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */
5147 if (bmplength > 61)
5148 legacy_i2c_offset = offset + 54;
5149 bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
5150 bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
5151 bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
7f245b20
BS		 5152 bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4];
5153 bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5];
5154 bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6];
5155 bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7];
6ee73861
BS		 5156
5157 if (bmplength > 74) {
5158 bios->fmaxvco = ROM32(bmp[67]);
5159 bios->fminvco = ROM32(bmp[71]);
5160 }
5161 if (bmplength > 88)
5162 parse_script_table_pointers(bios, offset + 75);
5163 if (bmplength > 94) {
5164 bios->tmds.output0_script_ptr = ROM16(bmp[89]);
5165 bios->tmds.output1_script_ptr = ROM16(bmp[91]);
5166 /*
5167 * Never observed in use with lvds scripts, but is reused for
5168 * 18/24 bit panel interface default for EDID equipped panels
5169 * (if_is_24bit not set directly to avoid any oscillation).
5170 */
5171 bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]);
5172 }
5173 if (bmplength > 108) {
5174 bios->fp.fptablepointer = ROM16(bmp[105]);
5175 bios->fp.fpxlatetableptr = ROM16(bmp[107]);
5176 bios->fp.xlatwidth = 1;
5177 }
5178 if (bmplength > 120) {
5179 bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]);
5180 bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]);
5181 }
5182 if (bmplength > 143)
5183 bios->pll_limit_tbl_ptr = ROM16(bmp[142]);
5184
5185 if (bmplength > 157)
5186 bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10;
5187
5188 return 0;
5189}
5190
5191static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
5192{
5193 int i, j;
5194
5195 for (i = 0; i <= (n - len); i++) {
5196 for (j = 0; j < len; j++)
5197 if (data[i + j] != str[j])
5198 break;
5199 if (j == len)
5200 return i;
5201 }
5202
5203 return 0;
5204}
5205
6ee73861
BS		 5206static struct dcb_gpio_entry *
5207new_gpio_entry(struct nvbios *bios)
5208{
7f245b20 5209 struct dcb_gpio_table *gpio = &bios->dcb.gpio;
6ee73861
BS		 5210
5211 return &gpio->entry[gpio->entries++];
5212}
5213
5214struct dcb_gpio_entry *
5215nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
5216{
5217 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 5218 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 5219 int i;
5220
7f245b20
BS		 5221 for (i = 0; i < bios->dcb.gpio.entries; i++) {
5222 if (bios->dcb.gpio.entry[i].tag != tag)
6ee73861
BS		 5223 continue;
5224
7f245b20 5225 return &bios->dcb.gpio.entry[i];
6ee73861
BS		 5226 }
5227
5228 return NULL;
5229}
5230
5231static void
5232parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset)
5233{
5234 struct dcb_gpio_entry *gpio;
5235 uint16_t ent = ROM16(bios->data[offset]);
5236 uint8_t line = ent & 0x1f,
5237 tag = ent >> 5 & 0x3f,
5238 flags = ent >> 11 & 0x1f;
5239
5240 if (tag == 0x3f)
5241 return;
5242
5243 gpio = new_gpio_entry(bios);
5244
5245 gpio->tag = tag;
5246 gpio->line = line;
5247 gpio->invert = flags != 4;
2535d71c 5248 gpio->entry = ent;
6ee73861
BS		 5249}
5250
5251static void
5252parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset)
5253{
02faec09 5254 uint32_t entry = ROM32(bios->data[offset]);
6ee73861 5255 struct dcb_gpio_entry *gpio;
6ee73861 5256
02faec09 5257 if ((entry & 0x0000ff00) == 0x0000ff00)
6ee73861
BS		 5258 return;
5259
5260 gpio = new_gpio_entry(bios);
02faec09
BS		 5261 gpio->tag = (entry & 0x0000ff00) >> 8;
5262 gpio->line = (entry & 0x0000001f) >> 0;
5263 gpio->state_default = (entry & 0x01000000) >> 24;
5264 gpio->state[0] = (entry & 0x18000000) >> 27;
5265 gpio->state[1] = (entry & 0x60000000) >> 29;
5266 gpio->entry = entry;
6ee73861
BS		 5267}
5268
5269static void
5270parse_dcb_gpio_table(struct nvbios *bios)
5271{
5272 struct drm_device *dev = bios->dev;
7f245b20 5273 uint16_t gpio_table_ptr = bios->dcb.gpio_table_ptr;
6ee73861
BS		 5274 uint8_t *gpio_table = &bios->data[gpio_table_ptr];
5275 int header_len = gpio_table[1],
5276 entries = gpio_table[2],
5277 entry_len = gpio_table[3];
5278 void (*parse_entry)(struct nvbios *, uint16_t) = NULL;
5279 int i;
5280
7f245b20 5281 if (bios->dcb.version >= 0x40) {
6ee73861
BS		 5282 if (gpio_table_ptr && entry_len != 4) {
5283 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
5284 return;
5285 }
5286
5287 parse_entry = parse_dcb40_gpio_entry;
5288
7f245b20 5289 } else if (bios->dcb.version >= 0x30) {
6ee73861
BS		 5290 if (gpio_table_ptr && entry_len != 2) {
5291 NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
5292 return;
5293 }
5294
5295 parse_entry = parse_dcb30_gpio_entry;
5296
7f245b20 5297 } else if (bios->dcb.version >= 0x22) {
6ee73861
BS		 5298 /*
5299 * DCBs older than v3.0 don't really have a GPIO
5300 * table, instead they keep some GPIO info at fixed
5301 * locations.
5302 */
5303 uint16_t dcbptr = ROM16(bios->data[0x36]);
5304 uint8_t *tvdac_gpio = &bios->data[dcbptr - 5];
5305
5306 if (tvdac_gpio[0] & 1) {
5307 struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
5308
5309 gpio->tag = DCB_GPIO_TVDAC0;
5310 gpio->line = tvdac_gpio[1] >> 4;
5311 gpio->invert = tvdac_gpio[0] & 2;
5312 }
5313 }
5314
5315 if (!gpio_table_ptr)
5316 return;
5317
5318 if (entries > DCB_MAX_NUM_GPIO_ENTRIES) {
5319 NV_WARN(dev, "Too many entries in the DCB GPIO table.\n");
5320 entries = DCB_MAX_NUM_GPIO_ENTRIES;
5321 }
5322
5323 for (i = 0; i < entries; i++)
5324 parse_entry(bios, gpio_table_ptr + header_len + entry_len * i);
5325}
5326
5327struct dcb_connector_table_entry *
5328nouveau_bios_connector_entry(struct drm_device *dev, int index)
5329{
5330 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 5331 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 5332 struct dcb_connector_table_entry *cte;
5333
7f245b20 5334 if (index >= bios->dcb.connector.entries)
6ee73861
BS		 5335 return NULL;
5336
7f245b20 5337 cte = &bios->dcb.connector.entry[index];
6ee73861
BS		 5338 if (cte->type == 0xff)
5339 return NULL;
5340
5341 return cte;
5342}
5343
f66fa771
BS		 5344static enum dcb_connector_type
5345divine_connector_type(struct nvbios *bios, int index)
5346{
5347 struct dcb_table *dcb = &bios->dcb;
5348 unsigned encoders = 0, type = DCB_CONNECTOR_NONE;
5349 int i;
5350
5351 for (i = 0; i < dcb->entries; i++) {
5352 if (dcb->entry[i].connector == index)
5353 encoders |= (1 << dcb->entry[i].type);
5354 }
5355
5356 if (encoders & (1 << OUTPUT_DP)) {
5357 if (encoders & (1 << OUTPUT_TMDS))
5358 type = DCB_CONNECTOR_DP;
5359 else
5360 type = DCB_CONNECTOR_eDP;
5361 } else
5362 if (encoders & (1 << OUTPUT_TMDS)) {
5363 if (encoders & (1 << OUTPUT_ANALOG))
5364 type = DCB_CONNECTOR_DVI_I;
5365 else
5366 type = DCB_CONNECTOR_DVI_D;
5367 } else
5368 if (encoders & (1 << OUTPUT_ANALOG)) {
5369 type = DCB_CONNECTOR_VGA;
5370 } else
5371 if (encoders & (1 << OUTPUT_LVDS)) {
5372 type = DCB_CONNECTOR_LVDS;
5373 } else
5374 if (encoders & (1 << OUTPUT_TV)) {
5375 type = DCB_CONNECTOR_TV_0;
5376 }
5377
5378 return type;
5379}
5380
53c44c3a
BS		 5381static void
5382apply_dcb_connector_quirks(struct nvbios *bios, int idx)
5383{
5384 struct dcb_connector_table_entry *cte = &bios->dcb.connector.entry[idx];
5385 struct drm_device *dev = bios->dev;
5386
5387 /* Gigabyte NX85T */
5388 if ((dev->pdev->device == 0x0421) &&
5389 (dev->pdev->subsystem_vendor == 0x1458) &&
5390 (dev->pdev->subsystem_device == 0x344c)) {
5391 if (cte->type == DCB_CONNECTOR_HDMI_1)
5392 cte->type = DCB_CONNECTOR_DVI_I;
5393 }
5394}
5395
6ee73861
BS		 5396static void
5397parse_dcb_connector_table(struct nvbios *bios)
5398{
5399 struct drm_device *dev = bios->dev;
7f245b20 5400 struct dcb_connector_table *ct = &bios->dcb.connector;
6ee73861 5401 struct dcb_connector_table_entry *cte;
7f245b20 5402 uint8_t *conntab = &bios->data[bios->dcb.connector_table_ptr];
6ee73861
BS		 5403 uint8_t *entry;
5404 int i;
5405
7f245b20 5406 if (!bios->dcb.connector_table_ptr) {
ef2bb506 5407 NV_DEBUG_KMS(dev, "No DCB connector table present\n");
6ee73861
BS		 5408 return;
5409 }
5410
5411 NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n",
5412 conntab[0], conntab[1], conntab[2], conntab[3]);
5413 if ((conntab[0] != 0x30 && conntab[0] != 0x40) ||
5414 (conntab[3] != 2 && conntab[3] != 4)) {
5415 NV_ERROR(dev, " Unknown! Please report.\n");
5416 return;
5417 }
5418
5419 ct->entries = conntab[2];
5420
5421 entry = conntab + conntab[1];
5422 cte = &ct->entry[0];
5423 for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) {
d544d623 5424 cte->index = i;
6ee73861
BS		 5425 if (conntab[3] == 2)
5426 cte->entry = ROM16(entry[0]);
5427 else
5428 cte->entry = ROM32(entry[0]);
f66fa771 5429
6ee73861 5430 cte->type = (cte->entry & 0x000000ff) >> 0;
d544d623 5431 cte->index2 = (cte->entry & 0x00000f00) >> 8;
6ee73861
BS		 5432 switch (cte->entry & 0x00033000) {
5433 case 0x00001000:
5434 cte->gpio_tag = 0x07;
5435 break;
5436 case 0x00002000:
5437 cte->gpio_tag = 0x08;
5438 break;
5439 case 0x00010000:
5440 cte->gpio_tag = 0x51;
5441 break;
5442 case 0x00020000:
5443 cte->gpio_tag = 0x52;
5444 break;
5445 default:
5446 cte->gpio_tag = 0xff;
5447 break;
5448 }
5449
5450 if (cte->type == 0xff)
5451 continue;
5452
53c44c3a
BS		 5453 apply_dcb_connector_quirks(bios, i);
5454
6ee73861
BS		 5455 NV_INFO(dev, " %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n",
5456 i, cte->entry, cte->type, cte->index, cte->gpio_tag);
f66fa771
BS		 5457
5458 /* check for known types, fallback to guessing the type
5459 * from attached encoders if we hit an unknown.
5460 */
5461 switch (cte->type) {
5462 case DCB_CONNECTOR_VGA:
5463 case DCB_CONNECTOR_TV_0:
5464 case DCB_CONNECTOR_TV_1:
5465 case DCB_CONNECTOR_TV_3:
5466 case DCB_CONNECTOR_DVI_I:
5467 case DCB_CONNECTOR_DVI_D:
5468 case DCB_CONNECTOR_LVDS:
5469 case DCB_CONNECTOR_DP:
5470 case DCB_CONNECTOR_eDP:
5471 case DCB_CONNECTOR_HDMI_0:
5472 case DCB_CONNECTOR_HDMI_1:
5473 break;
5474 default:
5475 cte->type = divine_connector_type(bios, cte->index);
da647d5b 5476 NV_WARN(dev, "unknown type, using 0x%02x\n", cte->type);
f66fa771
BS		 5477 break;
5478 }
5479
da647d5b
BS		 5480 if (nouveau_override_conntype) {
5481 int type = divine_connector_type(bios, cte->index);
5482 if (type != cte->type)
5483 NV_WARN(dev, " -> type 0x%02x\n", cte->type);
5484 }
5485
6ee73861
BS		 5486 }
5487}
5488
7f245b20 5489static struct dcb_entry *new_dcb_entry(struct dcb_table *dcb)
6ee73861
BS		 5490{
5491 struct dcb_entry *entry = &dcb->entry[dcb->entries];
5492
5493 memset(entry, 0, sizeof(struct dcb_entry));
5494 entry->index = dcb->entries++;
5495
5496 return entry;
5497}
5498
7f245b20 5499static void fabricate_vga_output(struct dcb_table *dcb, int i2c, int heads)
6ee73861
BS		 5500{
5501 struct dcb_entry *entry = new_dcb_entry(dcb);
5502
5503 entry->type = 0;
5504 entry->i2c_index = i2c;
5505 entry->heads = heads;
5506 entry->location = DCB_LOC_ON_CHIP;
5507 /* "or" mostly unused in early gen crt modesetting, 0 is fine */
5508}
5509
7f245b20 5510static void fabricate_dvi_i_output(struct dcb_table *dcb, bool twoHeads)
6ee73861
BS		 5511{
5512 struct dcb_entry *entry = new_dcb_entry(dcb);
5513
5514 entry->type = 2;
5515 entry->i2c_index = LEGACY_I2C_PANEL;
5516 entry->heads = twoHeads ? 3 : 1;
5517 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
5518 entry->or = 1; /* means |0x10 gets set on CRE_LCD__INDEX */
5519 entry->duallink_possible = false; /* SiI164 and co. are single link */
5520
5521#if 0
5522 /*
5523 * For dvi-a either crtc probably works, but my card appears to only
5524 * support dvi-d. "nvidia" still attempts to program it for dvi-a,
5525 * doing the full fp output setup (program 0x6808.. fp dimension regs,
5526 * setting 0x680848 to 0x10000111 to enable, maybe setting 0x680880);
5527 * the monitor picks up the mode res ok and lights up, but no pixel
5528 * data appears, so the board manufacturer probably connected up the
5529 * sync lines, but missed the video traces / components
5530 *
5531 * with this introduction, dvi-a left as an exercise for the reader.
5532 */
5533 fabricate_vga_output(dcb, LEGACY_I2C_PANEL, entry->heads);
5534#endif
5535}
5536
7f245b20 5537static void fabricate_tv_output(struct dcb_table *dcb, bool twoHeads)
6ee73861
BS		 5538{
5539 struct dcb_entry *entry = new_dcb_entry(dcb);
5540
5541 entry->type = 1;
5542 entry->i2c_index = LEGACY_I2C_TV;
5543 entry->heads = twoHeads ? 3 : 1;
5544 entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
5545}
5546
5547static bool
7f245b20 5548parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 5549 uint32_t conn, uint32_t conf, struct dcb_entry *entry)
5550{
5551 entry->type = conn & 0xf;
5552 entry->i2c_index = (conn >> 4) & 0xf;
5553 entry->heads = (conn >> 8) & 0xf;
7f245b20 5554 if (dcb->version >= 0x40)
6ee73861
BS		 5555 entry->connector = (conn >> 12) & 0xf;
5556 entry->bus = (conn >> 16) & 0xf;
5557 entry->location = (conn >> 20) & 0x3;
5558 entry->or = (conn >> 24) & 0xf;
6ee73861
BS		 5559
5560 switch (entry->type) {
5561 case OUTPUT_ANALOG:
5562 /*
5563 * Although the rest of a CRT conf dword is usually
5564 * zeros, mac biosen have stuff there so we must mask
5565 */
7f245b20 5566 entry->crtconf.maxfreq = (dcb->version < 0x30) ?
6ee73861
BS		 5567 (conf & 0xffff) * 10 :
5568 (conf & 0xff) * 10000;
5569 break;
5570 case OUTPUT_LVDS:
5571 {
5572 uint32_t mask;
5573 if (conf & 0x1)
5574 entry->lvdsconf.use_straps_for_mode = true;
7f245b20 5575 if (dcb->version < 0x22) {
6ee73861
BS		 5576 mask = ~0xd;
5577 /*
5578 * The laptop in bug 14567 lies and claims to not use
5579 * straps when it does, so assume all DCB 2.0 laptops
5580 * use straps, until a broken EDID using one is produced
5581 */
5582 entry->lvdsconf.use_straps_for_mode = true;
5583 /*
5584 * Both 0x4 and 0x8 show up in v2.0 tables; assume they
5585 * mean the same thing (probably wrong, but might work)
5586 */
5587 if (conf & 0x4 || conf & 0x8)
5588 entry->lvdsconf.use_power_scripts = true;
5589 } else {
5590 mask = ~0x5;
5591 if (conf & 0x4)
5592 entry->lvdsconf.use_power_scripts = true;
5593 }
5594 if (conf & mask) {
5595 /*
5596 * Until we even try to use these on G8x, it's
5597 * useless reporting unknown bits. They all are.
5598 */
7f245b20 5599 if (dcb->version >= 0x40)
6ee73861
BS		 5600 break;
5601
5602 NV_ERROR(dev, "Unknown LVDS configuration bits, "
5603 "please report\n");
5604 }
5605 break;
5606 }
5607 case OUTPUT_TV:
5608 {
7f245b20 5609 if (dcb->version >= 0x30)
6ee73861
BS		 5610 entry->tvconf.has_component_output = conf & (0x8 << 4);
5611 else
5612 entry->tvconf.has_component_output = false;
5613
5614 break;
5615 }
5616 case OUTPUT_DP:
5617 entry->dpconf.sor.link = (conf & 0x00000030) >> 4;
5618 entry->dpconf.link_bw = (conf & 0x00e00000) >> 21;
5619 switch ((conf & 0x0f000000) >> 24) {
5620 case 0xf:
5621 entry->dpconf.link_nr = 4;
5622 break;
5623 case 0x3:
5624 entry->dpconf.link_nr = 2;
5625 break;
5626 default:
5627 entry->dpconf.link_nr = 1;
5628 break;
5629 }
5630 break;
5631 case OUTPUT_TMDS:
5632 entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4;
5633 break;
5634 case 0xe:
5635 /* weird g80 mobile type that "nv" treats as a terminator */
7f245b20 5636 dcb->entries--;
6ee73861 5637 return false;
e7cc51c5
BS		 5638 default:
5639 break;
6ee73861
BS		 5640 }
5641
23484874
BS		 5642 if (dcb->version < 0x40) {
5643 /* Normal entries consist of a single bit, but dual link has
5644 * the next most significant bit set too
5645 */
5646 entry->duallink_possible =
5647 ((1 << (ffs(entry->or) - 1)) * 3 == entry->or);
5648 } else {
5649 entry->duallink_possible = (entry->sorconf.link == 3);
5650 }
5651
6ee73861
BS		 5652 /* unsure what DCB version introduces this, 3.0? */
5653 if (conf & 0x100000)
5654 entry->i2c_upper_default = true;
5655
5656 return true;
5657}
5658
5659static bool
7f245b20 5660parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 5661 uint32_t conn, uint32_t conf, struct dcb_entry *entry)
5662{
b0d2de86
BS		 5663 switch (conn & 0x0000000f) {
5664 case 0:
5665 entry->type = OUTPUT_ANALOG;
5666 break;
5667 case 1:
5668 entry->type = OUTPUT_TV;
5669 break;
5670 case 2:
5671 case 3:
6ee73861 5672 entry->type = OUTPUT_LVDS;
b0d2de86
BS		 5673 break;
5674 case 4:
5675 switch ((conn & 0x000000f0) >> 4) {
5676 case 0:
6ee73861 5677 entry->type = OUTPUT_TMDS;
b0d2de86
BS		 5678 break;
5679 case 1:
5680 entry->type = OUTPUT_LVDS;
5681 break;
5682 default:
5683 NV_ERROR(dev, "Unknown DCB subtype 4/%d\n",
5684 (conn & 0x000000f0) >> 4);
5685 return false;
5686 }
5687 break;
5688 default:
5689 NV_ERROR(dev, "Unknown DCB type %d\n", conn & 0x0000000f);
5690 return false;
6ee73861 5691 }
b0d2de86
BS		 5692
5693 entry->i2c_index = (conn & 0x0003c000) >> 14;
5694 entry->heads = ((conn & 0x001c0000) >> 18) + 1;
5695 entry->or = entry->heads; /* same as heads, hopefully safe enough */
5696 entry->location = (conn & 0x01e00000) >> 21;
5697 entry->bus = (conn & 0x0e000000) >> 25;
6ee73861
BS		 5698 entry->duallink_possible = false;
5699
5700 switch (entry->type) {
5701 case OUTPUT_ANALOG:
5702 entry->crtconf.maxfreq = (conf & 0xffff) * 10;
5703 break;
b0d2de86
BS		 5704 case OUTPUT_TV:
5705 entry->tvconf.has_component_output = false;
6ee73861
BS		 5706 break;
5707 case OUTPUT_TMDS:
5708 /*
5709 * Invent a DVI-A output, by copying the fields of the DVI-D
5710 * output; reported to work by math_b on an NV20(!).
5711 */
5712 fabricate_vga_output(dcb, entry->i2c_index, entry->heads);
5713 break;
b0d2de86
BS		 5714 case OUTPUT_LVDS:
5715 if ((conn & 0x00003f00) != 0x10)
5716 entry->lvdsconf.use_straps_for_mode = true;
5717 entry->lvdsconf.use_power_scripts = true;
5718 break;
5719 default:
6ee73861
BS		 5720 break;
5721 }
5722
5723 return true;
5724}
5725
7f245b20 5726static bool parse_dcb_entry(struct drm_device *dev, struct dcb_table *dcb,
6ee73861
BS		 5727 uint32_t conn, uint32_t conf)
5728{
7f245b20 5729 struct dcb_entry *entry = new_dcb_entry(dcb);
6ee73861
BS		 5730 bool ret;
5731
7f245b20
BS		 5732 if (dcb->version >= 0x20)
5733 ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
6ee73861 5734 else
7f245b20 5735 ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
6ee73861
BS		 5736 if (!ret)
5737 return ret;
5738
7f245b20
BS		 5739 read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
5740 entry->i2c_index, &dcb->i2c[entry->i2c_index]);
6ee73861
BS		 5741
5742 return true;
5743}
5744
5745static
7f245b20 5746void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
6ee73861
BS		 5747{
5748 /*
5749 * DCB v2.0 lists each output combination separately.
5750 * Here we merge compatible entries to have fewer outputs, with
5751 * more options
5752 */
5753
5754 int i, newentries = 0;
5755
5756 for (i = 0; i < dcb->entries; i++) {
5757 struct dcb_entry *ient = &dcb->entry[i];
5758 int j;
5759
5760 for (j = i + 1; j < dcb->entries; j++) {
5761 struct dcb_entry *jent = &dcb->entry[j];
5762
5763 if (jent->type == 100) /* already merged entry */
5764 continue;
5765
5766 /* merge heads field when all other fields the same */
5767 if (jent->i2c_index == ient->i2c_index &&
5768 jent->type == ient->type &&
5769 jent->location == ient->location &&
5770 jent->or == ient->or) {
5771 NV_TRACE(dev, "Merging DCB entries %d and %d\n",
5772 i, j);
5773 ient->heads |= jent->heads;
5774 jent->type = 100; /* dummy value */
5775 }
5776 }
5777 }
5778
5779 /* Compact entries merged into others out of dcb */
5780 for (i = 0; i < dcb->entries; i++) {
5781 if (dcb->entry[i].type == 100)
5782 continue;
5783
5784 if (newentries != i) {
5785 dcb->entry[newentries] = dcb->entry[i];
5786 dcb->entry[newentries].index = newentries;
5787 }
5788 newentries++;
5789 }
5790
5791 dcb->entries = newentries;
5792}
5793
ed42f824
BS		 5794static int
5795parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads)
6ee73861 5796{
ed42f824 5797 struct drm_nouveau_private *dev_priv = dev->dev_private;
7f245b20 5798 struct dcb_table *dcb = &bios->dcb;
ed42f824 5799 uint16_t dcbptr = 0, i2ctabptr = 0;
6ee73861
BS		 5800 uint8_t *dcbtable;
5801 uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES;
5802 bool configblock = true;
5803 int recordlength = 8, confofs = 4;
5804 int i;
5805
6ee73861 5806 /* get the offset from 0x36 */
ed42f824
BS		 5807 if (dev_priv->card_type > NV_04) {
5808 dcbptr = ROM16(bios->data[0x36]);
5809 if (dcbptr == 0x0000)
5810 NV_WARN(dev, "No output data (DCB) found in BIOS\n");
5811 }
6ee73861 5812
ed42f824 5813 /* this situation likely means a really old card, pre DCB */
6ee73861 5814 if (dcbptr == 0x0) {
ed42f824 5815 NV_INFO(dev, "Assuming a CRT output exists\n");
6ee73861
BS		 5816 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
5817
ed42f824 5818 if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
6ee73861
BS		 5819 fabricate_tv_output(dcb, twoHeads);
5820
5821 return 0;
5822 }
5823
5824 dcbtable = &bios->data[dcbptr];
5825
5826 /* get DCB version */
7f245b20 5827 dcb->version = dcbtable[0];
6ee73861 5828 NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n",
7f245b20 5829 dcb->version >> 4, dcb->version & 0xf);
6ee73861 5830
7f245b20 5831 if (dcb->version >= 0x20) { /* NV17+ */
6ee73861
BS		 5832 uint32_t sig;
5833
7f245b20 5834 if (dcb->version >= 0x30) { /* NV40+ */
6ee73861
BS		 5835 headerlen = dcbtable[1];
5836 entries = dcbtable[2];
5837 recordlength = dcbtable[3];
5838 i2ctabptr = ROM16(dcbtable[4]);
5839 sig = ROM32(dcbtable[6]);
7f245b20
BS		 5840 dcb->gpio_table_ptr = ROM16(dcbtable[10]);
5841 dcb->connector_table_ptr = ROM16(dcbtable[20]);
6ee73861
BS		 5842 } else {
5843 i2ctabptr = ROM16(dcbtable[2]);
5844 sig = ROM32(dcbtable[4]);
5845 headerlen = 8;
5846 }
5847
5848 if (sig != 0x4edcbdcb) {
5849 NV_ERROR(dev, "Bad Display Configuration Block "
5850 "signature (%08X)\n", sig);
5851 return -EINVAL;
5852 }
7f245b20 5853 } else if (dcb->version >= 0x15) { /* some NV11 and NV20 */
6ee73861
BS		 5854 char sig[8] = { 0 };
5855
5856 strncpy(sig, (char *)&dcbtable[-7], 7);
5857 i2ctabptr = ROM16(dcbtable[2]);
5858 recordlength = 10;
5859 confofs = 6;
5860
5861 if (strcmp(sig, "DEV_REC")) {
5862 NV_ERROR(dev, "Bad Display Configuration Block "
5863 "signature (%s)\n", sig);
5864 return -EINVAL;
5865 }
5866 } else {
5867 /*
5868 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always
5869 * has the same single (crt) entry, even when tv-out present, so
5870 * the conclusion is this version cannot really be used.
5871 * v1.2 tables (some NV6/10, and NV15+) normally have the same
5872 * 5 entries, which are not specific to the card and so no use.
5873 * v1.2 does have an I2C table that read_dcb_i2c_table can
5874 * handle, but cards exist (nv11 in #14821) with a bad i2c table
5875 * pointer, so use the indices parsed in parse_bmp_structure.
5876 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
5877 */
5878 NV_TRACEWARN(dev, "No useful information in BIOS output table; "
5879 "adding all possible outputs\n");
5880 fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
5881
5882 /*
5883 * Attempt to detect TV before DVI because the test
5884 * for the former is more accurate and it rules the
5885 * latter out.
5886 */
5887 if (nv04_tv_identify(dev,
5888 bios->legacy.i2c_indices.tv) >= 0)
5889 fabricate_tv_output(dcb, twoHeads);
5890
5891 else if (bios->tmds.output0_script_ptr ||
5892 bios->tmds.output1_script_ptr)
5893 fabricate_dvi_i_output(dcb, twoHeads);
5894
5895 return 0;
5896 }
5897
5898 if (!i2ctabptr)
5899 NV_WARN(dev, "No pointer to DCB I2C port table\n");
5900 else {
7f245b20
BS		 5901 dcb->i2c_table = &bios->data[i2ctabptr];
5902 if (dcb->version >= 0x30)
5903 dcb->i2c_default_indices = dcb->i2c_table[4];
6ee73861
BS		 5904 }
5905
6ee73861
BS		 5906 if (entries > DCB_MAX_NUM_ENTRIES)
5907 entries = DCB_MAX_NUM_ENTRIES;
5908
5909 for (i = 0; i < entries; i++) {
5910 uint32_t connection, config = 0;
5911
5912 connection = ROM32(dcbtable[headerlen + recordlength * i]);
5913 if (configblock)
5914 config = ROM32(dcbtable[headerlen + confofs + recordlength * i]);
5915
5916 /* seen on an NV11 with DCB v1.5 */
5917 if (connection == 0x00000000)
5918 break;
5919
5920 /* seen on an NV17 with DCB v2.0 */
5921 if (connection == 0xffffffff)
5922 break;
5923
5924 if ((connection & 0x0000000f) == 0x0000000f)
5925 continue;
5926
5927 NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n",
5928 dcb->entries, connection, config);
5929
7f245b20 5930 if (!parse_dcb_entry(dev, dcb, connection, config))
6ee73861
BS		 5931 break;
5932 }
5933
5934 /*
5935 * apart for v2.1+ not being known for requiring merging, this
5936 * guarantees dcbent->index is the index of the entry in the rom image
5937 */
7f245b20 5938 if (dcb->version < 0x21)
6ee73861
BS		 5939 merge_like_dcb_entries(dev, dcb);
5940
54abb5dd
BS		 5941 if (!dcb->entries)
5942 return -ENXIO;
5943
5944 parse_dcb_gpio_table(bios);
5945 parse_dcb_connector_table(bios);
5946 return 0;
6ee73861
BS		 5947}
5948
5949static void
5950fixup_legacy_connector(struct nvbios *bios)
5951{
7f245b20 5952 struct dcb_table *dcb = &bios->dcb;
dc5bc4ed 5953 int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
6ee73861
BS		 5954
5955 /*
5956 * DCB 3.0 also has the table in most cases, but there are some cards
5957 * where the table is filled with stub entries, and the DCB entriy
5958 * indices are all 0. We don't need the connector indices on pre-G80
5959 * chips (yet?) so limit the use to DCB 4.0 and above.
5960 */
7f245b20 5961 if (dcb->version >= 0x40)
6ee73861
BS		 5962 return;
5963
dc5bc4ed
BS		 5964 dcb->connector.entries = 0;
5965
6ee73861
BS		 5966 /*
5967 * No known connector info before v3.0, so make it up. the rule here
5968 * is: anything on the same i2c bus is considered to be on the same
5969 * connector. any output without an associated i2c bus is assigned
5970 * its own unique connector index.
5971 */
5972 for (i = 0; i < dcb->entries; i++) {
6ee73861
BS		 5973 /*
5974 * Ignore the I2C index for on-chip TV-out, as there
5975 * are cards with bogus values (nv31m in bug 23212),
5976 * and it's otherwise useless.
5977 */
5978 if (dcb->entry[i].type == OUTPUT_TV &&
dc5bc4ed 5979 dcb->entry[i].location == DCB_LOC_ON_CHIP)
6ee73861 5980 dcb->entry[i].i2c_index = 0xf;
dc5bc4ed
BS		 5981 i2c = dcb->entry[i].i2c_index;
5982
5983 if (i2c_conn[i2c]) {
5984 dcb->entry[i].connector = i2c_conn[i2c] - 1;
6ee73861
BS		 5985 continue;
5986 }
5987
dc5bc4ed
BS		 5988 dcb->entry[i].connector = dcb->connector.entries++;
5989 if (i2c != 0xf)
5990 i2c_conn[i2c] = dcb->connector.entries;
6ee73861
BS		 5991 }
5992
dc5bc4ed
BS		 5993 /* Fake the connector table as well as just connector indices */
5994 for (i = 0; i < dcb->connector.entries; i++) {
5995 dcb->connector.entry[i].index = i;
5996 dcb->connector.entry[i].type = divine_connector_type(bios, i);
5997 dcb->connector.entry[i].gpio_tag = 0xff;
6ee73861
BS		 5998 }
5999}
6000
6001static void
6002fixup_legacy_i2c(struct nvbios *bios)
6003{
7f245b20 6004 struct dcb_table *dcb = &bios->dcb;
6ee73861
BS		 6005 int i;
6006
6007 for (i = 0; i < dcb->entries; i++) {
6008 if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT)
6009 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt;
6010 if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL)
6011 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel;
6012 if (dcb->entry[i].i2c_index == LEGACY_I2C_TV)
6013 dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv;
6014 }
6015}
6016
6017static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
6018{
6019 /*
6020 * The header following the "HWSQ" signature has the number of entries,
6021 * and the entry size
6022 *
6023 * An entry consists of a dword to write to the sequencer control reg
6024 * (0x00001304), followed by the ucode bytes, written sequentially,
6025 * starting at reg 0x00001400
6026 */
6027
6028 uint8_t bytes_to_write;
6029 uint16_t hwsq_entry_offset;
6030 int i;
6031
6032 if (bios->data[hwsq_offset] <= entry) {
6033 NV_ERROR(dev, "Too few entries in HW sequencer table for "
6034 "requested entry\n");
6035 return -ENOENT;
6036 }
6037
6038 bytes_to_write = bios->data[hwsq_offset + 1];
6039
6040 if (bytes_to_write != 36) {
6041 NV_ERROR(dev, "Unknown HW sequencer entry size\n");
6042 return -EINVAL;
6043 }
6044
6045 NV_TRACE(dev, "Loading NV17 power sequencing microcode\n");
6046
6047 hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
6048
6049 /* set sequencer control */
6050 bios_wr32(bios, 0x00001304, ROM32(bios->data[hwsq_entry_offset]));
6051 bytes_to_write -= 4;
6052
6053 /* write ucode */
6054 for (i = 0; i < bytes_to_write; i += 4)
6055 bios_wr32(bios, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4]));
6056
6057 /* twiddle NV_PBUS_DEBUG_4 */
6058 bios_wr32(bios, NV_PBUS_DEBUG_4, bios_rd32(bios, NV_PBUS_DEBUG_4) | 0x18);
6059
6060 return 0;
6061}
6062
6063static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
6064 struct nvbios *bios)
6065{
6066 /*
6067 * BMP based cards, from NV17, need a microcode loading to correctly
6068 * control the GPIO etc for LVDS panels
6069 *
6070 * BIT based cards seem to do this directly in the init scripts
6071 *
6072 * The microcode entries are found by the "HWSQ" signature.
6073 */
6074
6075 const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
6076 const int sz = sizeof(hwsq_signature);
6077 int hwsq_offset;
6078
6079 hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
6080 if (!hwsq_offset)
6081 return 0;
6082
6083 /* always use entry 0? */
6084 return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0);
6085}
6086
6087uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
6088{
6089 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6090 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6091 const uint8_t edid_sig[] = {
6092 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
6093 uint16_t offset = 0;
6094 uint16_t newoffset;
6095 int searchlen = NV_PROM_SIZE;
6096
6097 if (bios->fp.edid)
6098 return bios->fp.edid;
6099
6100 while (searchlen) {
6101 newoffset = findstr(&bios->data[offset], searchlen,
6102 edid_sig, 8);
6103 if (!newoffset)
6104 return NULL;
6105 offset += newoffset;
6106 if (!nv_cksum(&bios->data[offset], EDID1_LEN))
6107 break;
6108
6109 searchlen -= offset;
6110 offset++;
6111 }
6112
6113 NV_TRACE(dev, "Found EDID in BIOS\n");
6114
6115 return bios->fp.edid = &bios->data[offset];
6116}
6117
6118void
6119nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
6120 struct dcb_entry *dcbent)
6121{
6122 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6123 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6124 struct init_exec iexec = { true, false };
6125
d9184fa9 6126 mutex_lock(&bios->lock);
6ee73861
BS		 6127 bios->display.output = dcbent;
6128 parse_init_table(bios, table, &iexec);
6129 bios->display.output = NULL;
d9184fa9 6130 mutex_unlock(&bios->lock);
6ee73861
BS		 6131}
6132
6133static bool NVInitVBIOS(struct drm_device *dev)
6134{
6135 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6136 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6137
6138 memset(bios, 0, sizeof(struct nvbios));
d9184fa9 6139 mutex_init(&bios->lock);
6ee73861
BS		 6140 bios->dev = dev;
6141
6142 if (!NVShadowVBIOS(dev, bios->data))
6143 return false;
6144
6145 bios->length = NV_PROM_SIZE;
6146 return true;
6147}
6148
6149static int nouveau_parse_vbios_struct(struct drm_device *dev)
6150{
6151 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6152 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6153 const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' };
6154 const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 };
6155 int offset;
6156
6157 offset = findstr(bios->data, bios->length,
6158 bit_signature, sizeof(bit_signature));
6159 if (offset) {
6160 NV_TRACE(dev, "BIT BIOS found\n");
6161 return parse_bit_structure(bios, offset + 6);
6162 }
6163
6164 offset = findstr(bios->data, bios->length,
6165 bmp_signature, sizeof(bmp_signature));
6166 if (offset) {
6167 NV_TRACE(dev, "BMP BIOS found\n");
6168 return parse_bmp_structure(dev, bios, offset);
6169 }
6170
6171 NV_ERROR(dev, "No known BIOS signature found\n");
6172 return -ENODEV;
6173}
6174
6175int
6176nouveau_run_vbios_init(struct drm_device *dev)
6177{
6178 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6179 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6180 int i, ret = 0;
6181
6182 NVLockVgaCrtcs(dev, false);
6183 if (nv_two_heads(dev))
6184 NVSetOwner(dev, bios->state.crtchead);
6185
6186 if (bios->major_version < 5) /* BMP only */
6187 load_nv17_hw_sequencer_ucode(dev, bios);
6188
6189 if (bios->execute) {
6190 bios->fp.last_script_invoc = 0;
6191 bios->fp.lvds_init_run = false;
6192 }
6193
6194 parse_init_tables(bios);
6195
6196 /*
6197 * Runs some additional script seen on G8x VBIOSen. The VBIOS'
6198 * parser will run this right after the init tables, the binary
6199 * driver appears to run it at some point later.
6200 */
6201 if (bios->some_script_ptr) {
6202 struct init_exec iexec = {true, false};
6203
6204 NV_INFO(dev, "Parsing VBIOS init table at offset 0x%04X\n",
6205 bios->some_script_ptr);
6206 parse_init_table(bios, bios->some_script_ptr, &iexec);
6207 }
6208
6209 if (dev_priv->card_type >= NV_50) {
7f245b20 6210 for (i = 0; i < bios->dcb.entries; i++) {
6ee73861 6211 nouveau_bios_run_display_table(dev,
7f245b20 6212 &bios->dcb.entry[i],
6ee73861
BS		 6213 0, 0);
6214 }
6215 }
6216
6217 NVLockVgaCrtcs(dev, true);
6218
6219 return ret;
6220}
6221
6222static void
6223nouveau_bios_i2c_devices_takedown(struct drm_device *dev)
6224{
6225 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6226 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6227 struct dcb_i2c_entry *entry;
6228 int i;
6229
7f245b20 6230 entry = &bios->dcb.i2c[0];
6ee73861
BS		 6231 for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++)
6232 nouveau_i2c_fini(dev, entry);
6233}
6234
d13102c6
BS		 6235static bool
6236nouveau_bios_posted(struct drm_device *dev)
6237{
6238 struct drm_nouveau_private *dev_priv = dev->dev_private;
6239 bool was_locked;
6240 unsigned htotal;
6241
6242 if (dev_priv->chipset >= NV_50) {
6243 if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
6244 NVReadVgaCrtc(dev, 0, 0x1a) == 0)
6245 return false;
6246 return true;
6247 }
6248
6249 was_locked = NVLockVgaCrtcs(dev, false);
6250 htotal = NVReadVgaCrtc(dev, 0, 0x06);
6251 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
6252 htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
6253 htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
6254 htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
6255 NVLockVgaCrtcs(dev, was_locked);
6256 return (htotal != 0);
6257}
6258
6ee73861
BS		 6259int
6260nouveau_bios_init(struct drm_device *dev)
6261{
6262 struct drm_nouveau_private *dev_priv = dev->dev_private;
04a39c57 6263 struct nvbios *bios = &dev_priv->vbios;
6ee73861
BS		 6264 uint32_t saved_nv_pextdev_boot_0;
6265 bool was_locked;
6266 int ret;
6267
6ee73861
BS		 6268 if (!NVInitVBIOS(dev))
6269 return -ENODEV;
6270
6271 ret = nouveau_parse_vbios_struct(dev);
6272 if (ret)
6273 return ret;
6274
6275 ret = parse_dcb_table(dev, bios, nv_two_heads(dev));
6276 if (ret)
6277 return ret;
6278
6279 fixup_legacy_i2c(bios);
6280 fixup_legacy_connector(bios);
6281
6282 if (!bios->major_version) /* we don't run version 0 bios */
6283 return 0;
6284
6285 /* these will need remembering across a suspend */
6286 saved_nv_pextdev_boot_0 = bios_rd32(bios, NV_PEXTDEV_BOOT_0);
6287 bios->state.saved_nv_pfb_cfg0 = bios_rd32(bios, NV_PFB_CFG0);
6288
6289 /* init script execution disabled */
6290 bios->execute = false;
6291
6292 /* ... unless card isn't POSTed already */
d13102c6 6293 if (!nouveau_bios_posted(dev)) {
6ee73861 6294 NV_INFO(dev, "Adaptor not initialised\n");
f50c0b91 6295 if (dev_priv->card_type < NV_40) {
6ee73861
BS		 6296 NV_ERROR(dev, "Unable to POST this chipset\n");
6297 return -ENODEV;
6298 }
6299
6300 NV_INFO(dev, "Running VBIOS init tables\n");
6301 bios->execute = true;
6302 }
6303
6304 bios_wr32(bios, NV_PEXTDEV_BOOT_0, saved_nv_pextdev_boot_0);
6305
6306 ret = nouveau_run_vbios_init(dev);
04a39c57 6307 if (ret)
6ee73861 6308 return ret;
6ee73861
BS		 6309
6310 /* feature_byte on BMP is poor, but init always sets CR4B */
6311 was_locked = NVLockVgaCrtcs(dev, false);
6312 if (bios->major_version < 5)
6313 bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40;
6314
6315 /* all BIT systems need p_f_m_t for digital_min_front_porch */
6316 if (bios->is_mobile || bios->major_version >= 5)
6317 ret = parse_fp_mode_table(dev, bios);
6318 NVLockVgaCrtcs(dev, was_locked);
6319
6320 /* allow subsequent scripts to execute */
6321 bios->execute = true;
6322
6323 return 0;
6324}
6325
6326void
6327nouveau_bios_takedown(struct drm_device *dev)
6328{
6329 nouveau_bios_i2c_devices_takedown(dev);
6330}
Clone of davem's net-next-2.6 tree